United States Environmental Protection Agency Office of Solid Waste and Emergency Response 9202.1-21A EPA/540/R-96/021 PB96-963233 April 1996 Superfund vvEPA Superfund Post Remediation Accomplishments: Uses of the Land and Environmental Achievements Volume 2 ------- 9202.1-21A PB96-963233 EPA/540/R96/021 April 1996 Superfund Post Remediation Accomplishments: Uses of the Land and Environmental Achievements Volume 2 Final Outreach and Special Projects Staff Office of Solid Waste and Emergency Response U.S. Environmental Protection Agency Washington, DC 20460 ------- TABLE OF CONTENTS TABLE OF CONTENTS State Page REGION71 COMPLETED NPL SITES: Cannon Engineering Corporation MA 3 Darling Hill Dump , VT 5 Kearsarge Metallurgical Corp NH 7 Keefe Environmental Services Site NH 9 McKin Company ME 11 Mottolo Pig Farm... , NH 13 Plymouth Harbor/Cannon Engineering Corporation MA 15 Revere Textile Print Corporation CT 17 Saco Tannery Waste Pits ME 19 Sylvester's/Gilson Road , NH 21 Town Garage/Radio Beacon NH 23 Western Sand & Gravel , RI 25 REMOVAL ACTION SITES: Danville Tire Fire NH 27 Eastern Surplus Supply Co ME 29 Industri-Plex Site MA 31 Nyanza Chemical MA 35 Pease Air Force Base NH 37 Robson Residence Site ME 39 Wells Metal Finishing Site MA 41 REGION 2 COMPLETED NPL SITES: Action Anodizing Plating and Polishing , NY 45 Beachwood/Berkeley Wells NJ 47 BEC Trucking NY 49 BioClinical Laboratories NY 51 C & J Disposal Leasing Co. Dump NY 53 Clothier Disposal NY 55 Combe Fill North Landfill NJ 57 Cooper Road NJ 59 Friedman Property NJ 61 Goose Farm , NJ 63 Helen Kramer Landfill NJ 65 Katonah Municipal Well NY 67 Krysowaty Farm NJ 69 in ------- TABLE OF CONTENTS TABLE OF CONTENTS Stale Page Lodi Municipal Well NJ ,71 M & T DeLisa Landfill NJ 73 Monroe Township Landfill NJ 75 Old Bethpage Landfill NY 77 Pomona Oaks Residential Wells NJ 79 Ringwood Mines/Landfill NJ 81 South Brunswick Landfill NJ 83 Suffern Village Well Field NY 85 Tabernacle Drum Dump NJ 87 Tronic Plating Co NY 89 Upper Deerfield Township Sanitary Landfill NJ 91 Vineland State School NJ 93 Wide Beach Development NY 95 Wilson Farm NJ 97 Witco Chemical Corporation NJ 99 REMOVAL ACTION SITES: Andor Chemical Corporation NY 101 Arkansas Chemical NJ 103 Atlantic Resources Corporation NJ 105 Forest Glen .....NY 107 Franklin Bum Sites NJ 109 Friendship Drive Site , NY Ill Fulton Terminals NY 113 Hicksville MEK Spill NY 115 Kin-Buc Landfill, Pool "C" Area NJ 117 Momclair/West Orange Radium Site NJ 119 MorelandSite NY 121 Onondaga Nation - Site B NY 123 Pollution Abatement Services (PAS) NY 125 Pulverizing Services Site NJ 127 Quanta Resources NJ 129 Radium Chemical Company Site NY.. , 131 Roebling Steel Site NJ 133 Signo Trade International, Ltd NY 135 REGION 3 COMPLETED NPL SITES: Ambler Asbestos Piles PA 139 Bruin Lagoon PA 141 IV ------- TABLE OF CONTENTS TABLE OF CONTENTS Slate Page C & R Battery Co., Inc VA 143 Chemical Metals Industries MD 145 Chisman Creek VA 147 Coker's Sanitation Service Landfills DE 149 Enterprise Avenue PA 151 Hebelka Auto Salvage Yard PA 153 Henderson Road Site PA 155 Kimberton Site PA.. 157 Lansdowne Radiation Site PA 159 Leetown Pesticide WV 161 Lehigh Electric & Engineering Company PA 163 Matthews Electric Plating Site VA 165 Mid-Atlantic Wood Preservers MD 167 Middletown Road Dump Site MD 169 New Castle Spill Site DE 171 New Castle Steel DE 173 Presquelsle PA 175 Reeser's Landfill PA 177 Route 940 Drum Dump PA 179 SealandLtd , , , '. DE 181 Suffolk City Landfill VA 183 Taylor Borough Dump PA 185 Voortman Farm PA. 187 Wade (ABM) PA 189 WestlineSite PA 191 Wildcat Landfill DE 193 REMOVAL ACTION SITES: Action Manufacturing Company (Amcom) Site PA 195 American Street Tannery Site PA 197 Army Creek Landfill DE 199 Atwell Mountain Drum Site WV, ,....,.... 201 Avtex Fibers Site VA 203 Belfield Avenue Site PA 205 Bellinger Steel Plant Site PA 207 Coleman Testing Laboratory PA 209 Eastern Diversified Metals Site PA 211 E-Z Chemical Site PA 213 Fike/Artel Chemical Site WV 215 Goodwin Junkyard Site VA 217 Greenwood Chemical Site VA 219 Jackson Ceramics Lead Site PA 221 Marjol Battery Removal Enforcement Site PA 223 ------- TABLE OF CONTENTS TABLE OF CONTENTS METCOA Radiation Site , PA 225 Metro Container Site PA 227 Spectron/Galaxy Site MD 229 Valley Plating Site VA 231 Winchester Tire Fire VA 233 REGION 4 COMPLETED NPL SITES: Alpha Chemical Corporation FL 237 A.L.Taylor (Valley of Drums) , KY 239 Amnicola Dump TN 241 Beulah Landfill , FL 243 Brown Wood Preserving FL 245 Celanese Corporation NC, , 247 Chemform, Jnc FL 249 Chemtronics, Inc NC 251 City Industries ...FL 253 DistlerFarm KY 255 FlowoodSite MS 257 General Tire and Rubber Co KY 259 Gold Coast Oil FL 261 Hollingsworth Solderless Terminal FL 263 Independent Nail Company SC 265 Lee's Lane Landfill KY 267 Lewisburg Dump TN 269 Luminous Processes Inc GA.. 271 Miami Drum Services FL 273 Monsanto Corp. (Angus) GA , 275 Mowbray Engineering Company AL 277 Newport Dump KY 279 Parramore Surplus FL 281 PCB Spills NC 283 Peppers Steel & Alloys FL 285 Perdido Groundwater Contamination AL 287 Pioneer Sand Company FL 289 Powersville Landfill.,... GA 291 SCRDIDixiana SC 293 Triana/Tennessee River Site AL 295 Tri-City Oil Conservation FL 297 Varsol Spill Site , FL 299 VI ------- TABLE OF CONTENTS TABLE OF CONTENTS State Page Walcotte Chemical Co , , MS 301 Wilson Concepts of Florida, Inc FL 303 Woodbury Chemical Company FL 305 REMOVAL ACTION SITES: Cedartown Battery Site , GA 307 Disposal Services, Inc MS 309 Divex Corporation Sites SC 311 Interstate Lead Company (ILCO) Site.... AL 313 Maxey Flats Low-Level Nuclear Waste Disposal Site KY 315 Palmetto Wood Preserving SC 317 Prairie/Starkville Ether Sites MS 319 Prentiss Creosote Site , MS 321 Shaver's Farm Drum Disposal GA 323 So-Green Emergency Response GA 325 Southern Crop Services FL 327 Wrigley Charcoal TN 329 REGION 5 COMPLETED NPL SITES: A&F Materials Reclaiming, Inc IL 335 Adrian Well Municipal Well Field MN 337 Algoma Municipal Landfill WI 339 American Anodco, Inc MI 341 Anderson Development Company MI 343 Belvidere Municipal Landfill , IL 345 Boise Cascade/Onan CorpTMedtronics MN 347 Bower's Landfill OH 349 Burrows Sanitation MI 351 Cemetery Dump Site , MI 353 Charlevoix Municipal Well Field MI 355 Chem-Dyne Corp. OH 357 Chemical & Minerals Reclamation OH.... 359 Eau Claire Municipal Well Field WI 361 E.H. Schilling Landfill , OH 363 FMC Corporation MN 365 General Mills/Henkel Corporation MN 367 Grand Traverse Overall Supply Company MI 369 Gratiot County Golf Course MI 371 vn ------- TABLE OF CONTENTS TABLE OF CONTENTS State Page Hedblum Industries MI 373 IMC Terre Haute East Plant.... , IN , 375 Johns Manville Corporation IL 377 LaSalle Electric Utilities IL 379 Laskin/Poplar Oil Company OH 381 LeHillier/Mankato Site MN 383 Mason County Landfill MI 385 Metal Working Shop MI 387 Morris Arsenic Dump MN 389 New Lyme Landfill OH 391 Northern Engraving Company WI 393 Novaco Industries MI 395 Nutting Truck & Caster Company MN 397 Oak Grove Sanitary Landfill ...MN 399 Old Mill , ...OH 401 Petersen Sand & Gravel IL 403 PoerFairo IN 405 Republic Steel Corporation Quarry OH 407 SchmalzDump WI 409 Seymour Recycling Corporation ..IN 411 Tri-State Plating IN 413 Twin Cities Air Force Reserve Base MN 415 Union Scrap Iron & Metal Company MN 417 U.S.Aviex MI 419 Velsicol Chemical Corporation MI 421 Washington County Landfill MN 423 Wedzeb Enterprises, Inc EN 425 Wheeler Pit WI 427 Whitehall Municipal Wells MI 429 Whittaker Corporation .....MN 431 WindomDump MN .....433 REMOVAL ACTION SITES: Dayton Hre and Rubber Company Site OH 435 Industrial Fuels and Asphalt Site IN 437 Kelly Koett Site OH 439 Nagel Residence Site MI 441 vm ------- TABLE OF CONTENTS TABLE OF CONTENTS State REGION 6 COMPLETED NPL SITES: Bayou Sorrel Site , , LA 445 Bio-Ecology Systems, Inc TX 447 Cecil Lindsey Site AR , 449 Cimarron Mining Corp NM 451 Compass Industries OK 453 Crystal City Airport TX 455 Dixie Oil Processors, Inc , TX 45? Geneva Industries/Fuhrmann Energy TX 459 Hams (Farley Street) Site TX 461 Highlands Acid Pit TX 463 Industrial Waste Control ,. AR 465 Midland Products AR 467 Mid-South Wood Products AR 469 Pagano Salvage NM 471 Pesses Chemical Company TX 473 Sol Lynn/Industrial Transformers TX 475 Stewco, Inc TX , 477 Triangle Chemical Company TX 479 REMOVAL ACTION SITES: American Thio-Chem Site TX 481 Billing Smelter NM 483 French Limited Site .....TX 485 Gramlich Residence Site AR 487 Hastings Radiochemical Site TX 489 Smith Company of Ulvade TX 491 REGION 7 COMPLETED NPL SITES: Aidex Corporation IA 495 Arkansas City Dump KS 497 Big River Sand Company KS 499 Conservation Chemical Company MO 501 E.I. DuPont de Nemours & Company, Inc. (County Road X23) IA 503 IX ------- TABLE OF CONTENTS TABLE OF CONTENTS State Page Fulbright/Sac River Landfills , MO 505 Hydro-Flex Inc KS 507 John Deere (Ottumwa Works) IA 509 Johns' Sludge Pond KS , 511 La Bounty Site IA 513 Lawrence Todtz Farm IA 515 North-U Drive Well Contamination MO 517 Northwestern States Portland Cement Co. IA 519 Solid State Circuits, Inc MO 521 REMOVAL ACTION SITES: Baldwin Park MO 523 REGION 8 COMPLETED NPL SITES: Arsenic Trioxide Site ND 527 Libby Groundwater Contamination MT 529 Marshal Landfill CO 531 Mystery Bridge Road , WY 533 Rose Park Sludge Pit , UT 535 Whitewood Creek SD 537 Woodbury Chemical Company CO 539 REMOVAL A CT1ON SITES: Limon Elevator Site CO 541 Montana Pole and Treating , MT 543 Rocky Boy Post and Pole MT 545 Silver Bow Creek/Butte Area Site ..MT 547 Swink Mercury , CO 551 Xtron Corporation Site UT 553 REGION 9 COMPLETED NPL SITES: Advanced Micro Devices (#915) CA 557 Advanced Micro Devices, Inc CA 559 Applied Materials , CA 561 Beckman Instruments , CA 563 ------- TABLE OF CONTENTS TABLE OF CONTENTS State Celtor Chemical Works , CA .565 CTS Printex, Incorporated CA 567 Del None Pesticide Storage CA 569 Fairchild Semiconductor Corp , CA 571 Firestone Tire "CA 573 Intel Corp. (Santa Clara #3) CA 575 Intel Magnetics CA 577 Intersil/Siemens Components CA 579 Jibboom Junkyard CA 581 Mountain View Mobile Homes AZ 583 Sola Optical USA, Inc. Site CA 585 Spectra Physics, Inc. CA 587 Synertek, Inc CA 589 Teledyne Semiconductor CA 591 TRW Microwave Inc CA 593 REMOVAL ACTION SITES: There are no fact sheets for removal action sites in Region 9 REGION 10 COMPLETED NPL SITES: Alaskan Battery Enterprises AK 597 Allied Plating, Inc OR 599 ARRCOM (Drexler Enterprises) ID 601 FMC Corporation WA 603 Joseph Forest Products OR 605 Lakewood Site WA 607 Northside Landfill WA 609 Pesticide Lab/Yakima WA 611 Silver Mountain Mine WA 613 Toftdahl Drums WA 615 United Chrome Products, Inc OR 617 Western Processing Company, Inc. WA 619 Yakima Plating Co WA 621 REMOVAL ACTION SITES: Bunker Hill Mining ID 623 WycoffiEagle Harbor Site WA 625 XI ------- TABLE OF CONTENTS FACT SHEET ALPHABETICAL LISTING State Rage A.L, Taylor (Valley of Drums) A&F Materials Reclaiming, Inc Action Anodizing Plating and Polishing Action Manufacturing Company (Amcom) Site Adrian Well Municipal Well Field Advanced Micro Devices (#915) Advanced Micro Devices. Inc Aidex Corporation Alaskan Battery Enterprises Algoma Municipal Landfill Allied Plating, Inc Alpha Chemical Corporation Ambler Asbestos Piles American Anodco, Inc. American Street Tannery Site American Thio-Chem Site Amnicola Dump Anderson Development Company Andor Chemical Corporation Applied Materials Arkansas Chemical Arkansas City Dump Army Creek Landfill , ARRCOM (Drexler Enterprises) Arsenic Trioxide Site Atlantic Resources Corporation Atwell Mountain Drum Site Avtex Fibers Site Baldwin Park Bayou Sorrel Site Beachwood/Berkeley Wells BEC Trucking Beckman Instruments Belfield Avenue Site Belvidere Municipal Landfill Beulah Landfill Big River Sand Company Billing Smelter BioClinical Laboratories Bio-Ecology Systems, Inc Boise Cascade/Onan Corp ./Medtronics KY IL ...NY PA MN CA CA .IA AK WI OR FL PA MI , ..........PA TX TN MI NY CA NJ KS DE ID ND , .....NJ.. WV VA MO LA NJ NY CA PA IL FL KS NM NY TX. MN.... 239 335 45 195 337 557 559 495 597 339 599 237 139 341 197 481 241 343 101 561 103 497 199 601 , 527 105 201 203 , 523 445 47 49 563 205 , 345 243 499 483 51 447 347 XII ------- TABLE OF CONTENTS FACT SHEET ALPHABETICAL LISTING State Page Bellinger Steel Plant Site PA 207 Bower's Landfill , OH 349 Brown Wood Preserving , , FL 245 Bruin Lagoon ., PA 141 Bunker Hill Mining .ID 623 Burrows Sanitation MI. 351 C & R Battery Co., Inc VA 143 C & J Disposal Leasing Co. Dump NY 53 Cannon Engineering Corporation MA 3 Cecil Lindsey Site AR 449 Cedartown Battery Site GA 307 Celanese Corporation NC 247 Celtor Chemical Works CA.... 565 Cemetery Dump Site MI 353 Charlevoix Municipal Well Field..... MI 355 Chem-Dyne Corp OH 357 Chemform, Inc FL 249 Chemical Metals Industries MD 145 Chemical & Minerals Reclamation OH 359 Chemtronics, Inc NC 251 Chisman Creek VA 147 Cimarron Mining Corp NM 451 City Industries FL 253 Clothier Disposal NY 55 Coker's Sanitation Service Landfills .....DE 149 Coleman Testing Laboratory PA 209 Combe Fill North Landfill NJ 57 Compass Industries OK 453 Conservation Chemical Company MO 501 Cooper Road , NJ 59 Crystal City Airport TX 455 CTS Prime*, Incorporated CA 567 Danville Tire Fire NH 27 Darling Hill Dump VT 5 Dayton Tire and Rubber Company Site OH 435 Del None Pesticide Storage CA 569 Disposal Services, Inc MS 309 DistlerFarm KY 255 Divex Corporation Sites SC 311 Dixie Oil Processors, Inc TX 457 E-Z Chemical Site PA 213 X1H ------- TABLE OF CONTENTS FACT SHEET ALPHABETICAL LISTING State E.H. Schilling Landfill ., , OH 363 EL DuPont de Nemours & Company, Inc. (County Road X23) IA , , 503 Eastern Diversified Metal Site PA 211 Eastern Surplus Supply Co ME 29 Eau Claire Municipal Well Field WI 361 Enterprise Avenue PA....... 151 Fairchild Semiconductor Corp CA 571 Fike/Artel Chemical Site WV 215 Firestone Tire CA 573 FlowoodSite MS 257 FMC Corporation MN 365 FMC Corporation WA 603 Forest Glen NY 107 Franklin Burn Sites NJ 109 French Limited Site TX 485 Friedman Property NJ 61 Friendship Drive Site NY 111 Fulbright/Sac River Landfills ..MO 505 Fulton Terminals NY 113 General Mills/Henkel Corporation MN 367 General Tire and Rubber Co KY 259 Geneva Industries/Fuhrmann Energy TX 459 Gold Coast Oil FL 261 Goodwin Junkyard Site VA 217 Goose Farm. NJ 63 Gramlich Residence Site AR 487 Grand Traverse Overall Supply Company MI 369 Gratiot County Golf Course MI 371 Greenwood Chemical Site VA 219 Harris (Farley Street) Site TX 461 Hastings Radiochemical Site TX 489 Hebelka Auto Salvage Yard..... PA 153 Hedblum Industries MI 373 Helen Kramer Landfill NJ 65 Henderson Road Site PA 155 Hicksville MEK Spill NY 115 Highlands Acid Pit TX 463 Hollingsworth Solderless Terminal FL 263 Hydro-Flex Inc KS 507 IMCTerre Haute East Plant IN 375 Independent Nail Company SC 265 Industrial Waste Control AR 465 xiv ------- TABLE OF CONTENTS FACT SHEET ALPHABETICAL LISTING State Page Industrial Fuels and Asphalt Site Industri-Plex Site , , , Intel Corp. (Santa Clara #3) Intel Magnetics Intersil/Siemens Components Interstate Lead Company (ILCO) Site Jackson Ceramics Lead Site Jibboom Junkyard John Deere (Ottumwa Works) Johns Manville Corporation Johns' Sludge Pond Joseph Forest Products Katonah Municipal Well , Kearsarge Metallurgical Corp Keefe Environmental Services Site ,..,. ...... .. Kelly Koett Site Kimberton Site Kin-Buc Landfill, Pool "C" Area Krysowaty Farm La Bounty Site LakewoodSite Lansdowne Radiation Site , LaSalle Electric Utilities Laskin/Poplar Oil Company , Lawrence Todtz Farm Lee's Lane Landfill Leetown Pesticide Lehigh Electric & Engineering Company LeHillier/Mankato Site Lewisburg Dump Libby Groundwater Contamination Limon Elevator Site Lodi Municipal Well Luminous Processes, Inc M & T DeLisa Landfill McKin Company Marjol Battery Removal Enforcement Site Marshal Landfill Mason County Landfill Matthews Electric Plating Site Maxey Flats Low-Level Nuclear Waste Disposal Site Metal Working Shop IN MA CA , CA CA AL PA... CA..... IA IL KS OR NY NH , .. NH . . OH PA ,....NJ NJ IA WA PA IL OH IA , KY WV PA MN TN MT CO NJ GA NJ ME PA CO MI VA KY MI 437 31 575 577 579 313 221 581 509 377 511 605 67 „ .. 7 9 439 157 117 . . . 69 513 607 159 379 381 515 267 161 163 383 269 529 541 71 271 73 ., 11 223 531 385 165 315 387 XV ------- TABLE OF CONTENTS FACT SHEET ALPHABETICAL LISTING State Page METCOA Radiation Site PA, 225 Metro Container Site PA 227 Miami Drum Services FL 273 Mid-Atlantic Wood Preservers MD 167 Middletown Road Dump Site MD 169 Midland Products , AR 467 Mid-South Wood Products AR 469 Monroe Township Landfill NJ 75 Monsanto Corp. (Angus) GA 275 Montana Pole and Treating MT 543 Montclair/West Orange Radium Site NJ , 119 MorelandSite NY 121 Morris Arsenic Dump MN 389 Mottolo Pig Farm NH 13 Mountain View Mobile Homes AZ 583 Mowbray Engineering Company AL 277 Mystery Bridge Road WY 533 Nagel Residence Site MI 441 New Castle Spill Site DE 171 New Castle Steel DE 173 New Lyme Landfill OH 391 Newport Dump KY 279 North-U Drive Well Contamination MO 517 Northern Engraving Company Wl 393 Northside Landfill. WA 609 Northwestern States Portland Cement Co. LA 519 Novaco Industries MI 395 Nutting Truck & Caster Company MN 397 Nyanza Chemical MA 35 Oak Grove Sanitary Landfill MN 399 Old Bethpage Landfill NY 77 Old Mill OH 401 Onondaga Nation - Site B NY 123 Pagano Salvage NM 471 Palmetto Wood Preserving SC 317 Parramore Surplus ,FL 281 PCB Spills NC 283 Pease Air Force Base NH 37 Peppers Steel & Alloys FL 285 Perdido Groundwater Contamination AL 287 Pesses Chemical Company TX 473 Pesticide Lab/Yakima WA 611 Petersen Sand & Gravel IL 403 xvi ------- TABLE OF CONTENTS FACT SHEET ALPHABETICAL LISTING State Page Pioneer Sand Company FL 289 Plymouth Harbor/Cannon Engineering Corporation MA 15 PoerFarai IN 405 Pollution Abatement Services (PAS) NY 125 Pomona Oaks Residential Wells NJ 79 Powersville Landfill GA...... 291 Prairie/Starkville Ether Sites MS 319 Premiss Creosote Site MS 321 Presquelsle PA 175 Pulverizing Services Site NJ 127 Quanta Resources NJ 129 Radium Chemical Company Site NY 131 Reeser's Landfill PA 177 Republic Steel Corporation Quarry , OH 407 Revere Textile Print Corporation CT 17 Ringwood Mines/Landfill NJ 81 Robson Residence Site ME 39 Rocky Boy Post and Pole MT 545 Roebling Steel Site '. NJ 133 Rose Park Sludge Pit UT 535 Route 940 Drum Dump PA 179 Saco Tannery Waste Pits ME 19 Schmalz Dump WI 409 SCRDIDixiana SC 293 SealandLtd DE 181 Seymour Recycling Corporation IN 411 Shaver's Farm Drum Disposal GA 323 Signo Trade International, Ltd NY 135 Silver Bow Creek/Butte Area Site MT 547 Silver Mountain Mine WA 613 Smith Company of Ulvade TX 491 So-Green Emergency Response GA 325 Sola Optical USA, Inc. Site CA 585 Solid State Circuits, Inc MO 521 Sol Lynn/Industrial Transformers TX 475 South Brunswick Landfill NJ 83 Southern Crop Services FL 327 Spectra Physics, Inc CA 587 Spectron/Galaxy Site MD 229 Stewco, Inc. TX 447 Suffern Village Well Field NY 85 Suffolk City Landfill VA 183 Swink Mercury CO 551 xvii ------- TABLE OF CONTENTS FACT SHEET ALPHABETICAL LISTING Sylvester's/Gilson Road NH 21 Synertek, Inc CA 589 Tabernacle Drum Dump , NJ 87 Taylor Borough Dump PA.... 185 Teledyne Semiconductor , CA 591 Toftdahl Drums WA 615 Town Garage/Radio Beacon NH 23 Triana/Tennessee River Site , AL 295 Triangle Chemical Company TX 479 Tri-City Oil Conservation FL 297 Tri-State Plating IN 413 Tronic Plating Co NY 89 TRW Microwave Inc CA 593 Twin Cities Air Force Reserve Base MN 415 Union Scrap Iron & Metal Company MN 417 United Chrome Products, Inc. OR 617 U.S.Aviex MI 419 Upper Deerfield Township Sanitary Landfill NJ 91 Valley Plating Site VA 231 Varsol Spill Site FL 299 Velsicol Chemical Corporation MI 421 Vmeland State School NJ 93 Voortman Farm , , PA 187 Wade (ABM) PA 189 Walcotte Chemical Co MS 301 Washington County Landfill MN 423 Wedzeb Enterprises, Inc IN 425 Wells Metal Finishing Site MA 41 Western Processing Company, Inc WA 619 Western Sand & Gravel RI 25 WestlineSite PA 191 Wheeler Pit.... WI 427 Whitehall Municipal Wells MI 429 Whitewood Creek SD 537 Whittaker Corporation MN 431 Wide Beach Development NY 95 Wildcat Landfill DE 193 Wilson Concepts of Florida, Inc FL 303 Wilson Farm NJ 97 Winchester Tire Fire VA 233 XVlll ------- TABLE OF CONTENTS TABLE OF CONTENTS State Page WindoraDump MN 433 Witco Chemical Corporation , , NJ 99 Woodbury Chemical Company CO 539 Woodbury Chemical Company FL 305 Wrigley Charcoal TN 329 Wycoff/Eagle Harbor Site , WA 625 Xtron Corporation Site , UT 553 Yakima Plating Co WA 621 xix ------- Page Intentionally Blank ------- PREFACE This is Volume 2 of a two-volume report entitled "Superfund Post Remediation Accomplishments: Uses of the Land and Environmental Benefits." Volume 1 contains the narrative and analytical portions of the report, while Volume 2 comprises the case studies that support the analysis. There are 224 Fact Sheets on National Priorities List (NPL) sites with construction completion as of March 1994. These include sites that were dropped out of the analysis in Volume 1 because they were no action sites, or sites that did not include the land surface. In addition, 76 fact sheets describe removal actions at NPL and non-NPL sites that were not completed sites at the time this report was being compiled. It should be noted that the information for these case studies was compiled during the calendar years 1992-1994. Information concerning use of land and ownership of the site may have changed over time. HOW TO ACCESS THE SITE FACT SHEETS CONTAINED IN VOLUME 2: The Fact Sheets are organized by U.S. Environmental Protection Agency Region (1-10), Within each Region, sites are grouped into two categories: Completed NPL Sites and Removal Action Sites and are arranged alphabetically within each category. The first portion table of contents reflects this organization. For ease of locating sites where only the name is known, a second table of contents provides an alphabetical listing of the sites by name and page number. When using this table of contents, it is not necessary to know the Region where a site is located. xxi ------- Page Intentionally Blank ------- REOION ONE ------- Page Intentionally Blank ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Cannon Engineering Corporation, Region 1 Bridgewater, Massachusetts Status: Operations at the Cannon Engineering Corporation (CEC) facility ceased in November 1980 when the facility's waste license was revoked. Final remedial action activities occurred in July 1991. Soil cleanup objectives were achieved, and all cleanup actions specified in the Record of Decision (ROD) were implemented. The following deed restrictions are in place: (1) property use is limited to commercial or industrial applications; (2) use of ground water is prohibited; and (3) onsite excavation is prohibited at depths below ground water. The only ongoing activity at the site is long-term ground-water monitoring conducted by the Potentially Responsible Party (PRP) group with EPA and Massachusetts Department of Environmental Protection (MADEP) oversight. The site is fully fenced, and a portion of the site is being used as wetlands. Five-year reviews are required because contamination remains onsite. Results and Benefits: Initial cleanup actions removed contaminated materials from the site and restricted site access, reducing the risk of exposure to hazardous substances at the CEC site. Direct contact threats from contaminated soil have been eliminated. Cleanup activities also removed the source materials and reduced movement of contaminants offsite. Target levels allowing for unrestricted use of the ground water are expected to be achieved by natural attenuation within 15 to 20 years. The site is fully fenced to reduce the potential for contact with contaminants. Background: The CEC facility is a 6-acre site located in a small industrial park in the Town of Bridgewater, Massachusetts. It is one of four separate but related sites that form the Cannon Sites Group and that are being handled under one enforcement effort. Approximately 1,000 people live within 1-mile of the CEC Bridgewater site. Use of the surrounding area is predominantly residential and light industrial. The nearest drinking water well, operated by the Town of Raynham, is located 1.3 miles west of the site. Lake Nippenicket is the largest surface water body within 1 mile of the site. CEC purchased the Bridgewater property in November 1974 and used it for handling, storage, and incineration of chemical wastes. Operations ceased in November 1980 after MADEP revoked CEC's waste license, citing document falsification and waste reporting violations. Over 700 drums and approximately 155,000 gallons of liquid waste and sludge in bulk storage were left onsite when the facility closed. Between 1980 and 1982, MADEP and EPA conducted further investigations to confirm the presence of contamination. The site was listed on the National Priorities List (NPL) on September 8,1983. The remedial investigation (RI) was completed in May 1987. Contamination was detected in all media; however, significant concentrations were present only in soil and ground water. Actions: Approximately 152,000 gallons of sludge and liquid wastes stored in tanks, and 711 drums ------- Cannon Engineering Corporation, Region 1 (Continued) were removed from the site by MADEP's contractor in October 1982. Another removal of wastes remaining onsite was conducted by the PRP group in June 1988. The remedy selected in the ROD of March 31, 1988, included both source control and management of migration components. The source control portion of the remedy provided for fencing the entire site area to restrict access, onsite thermal treatment of soils contaminated with volatile organic compounds (VOCs), and offsite incineration of polychlorinated biphenyl (PCB) contaminated soils. In addition, buildings and tanks onsite were to be decontaminated and removed, and underlying contaminated soil was to be remediated. The management of migration portion of the remedy includes restricting use of ground water at the site and installation of additional ground-water monitoring wells to assure that contamination does not migrate offsite. With removal of contaminated soils, contaminant levels onsite are expected to naturally attenuate. Fencing of the site perimeter was completed in 1989. Asbestos-containing materials (ACMs) were found in several buildings. Offsite disposal of all ACMs was completed on April 25, 1990, Decontamination, demolition, and disposal of all onsite structures was initiated on February 8, 1990. Excavations were conducted, starting in May 1990, in locations where PCB or VOC removal was necessary to achieve the levels specified in the ROD. A total of 11,330 tons of VOC and semivolatile organic compound (SVOC) impacted soils were excavated and treated onsite using Canonie's Low Temperature Thermal Aeration Unit (LTTA). A total of 396.65 tons of PCB-impacted soils were excavated and incinerated offsite. These activities were completed in October 1990. Six new overburden monitoring wells and three new bedrock monitoring wells were installed for long-term ground-water monitoring. Wetland areas were restored, and an upland area was also backfilled with clean, treated soil. Final remedial action activities in July 1991 included removal of six rolloffs of stored hazardous materials, and completion of final grading, seeding, and landscaping activities. Long-term ground-water monitoring began in 1991. ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Darling Hill Dump, Region 1 Lyndon, Vermont Status: The Darling Hill Dump has been inactive since 1989 when solid waste disposal operations at the site were discontinued. EPA has determined that no further remedial action is necessary at the Darling Hill Dump site; therefore, it now qualifies as a "site awaiting deletion." No construction activities are associated with the No Action decision. At a minimum, 5 years of ground-water monitoring will be performed to confirm that no unacceptable exposures will occur in the future. A 5-year review is not necessary under the statutory requirements of CERCLA because no hazardous wastes remain onsite. Results and Benefits: A carbon filtration system for the municipal water supply was installed to assure the protection of human health during the site investigation. However, the levels of organic compounds and metals that were detected in the soil and ground water at the site do not appear to pose an unacceptable risk to human health and the environment. EPA's decision as to whether action is warranted when the cancer risk range is not exceeded is based upon site specific conditions. Site specific conditions at the Darling Hill Dump site supported the decision to take no action. Steep slopes and the presence of woodlands make residential development in the immediate vicinity unlikely. The small surface area and marginal stability of the slopes make the site a poor location for futute development. The cancer risk that would result from exposure to the most contaminated ground water would be well within the acceptable risk range strongly supports the decision to select No Action. An environmental assessment was performed at the site. The site was found to have no impact to the West Branch of the Passumpsic River or the adjacent wetland or floodplain. No 5-year review will be undertaken; however, EPA will continue to monitor the ground water, surface water, and sediments for a period of 5 years. Background: The Darling Hill Dump is an inactive solid waste disposal facility located near the Village of Lyndonville, within the Town of Lyndon, in Caledonia County, in northeast Vermont. The Darling Hill Dump began operation in 1952 as a disposal area for municipal and industrial wastes. It was never formally regulated or permitted. Materials disposed of included white goods, lumber, tree stumps, furniture, cardboard, drums, cans and other containers, tires, automobiles, household refuse, construction debris, and industrial wastes (including solvents). After 1972, the majority of materials disposed were construction debris and white goods. The Darling Hill Dump contains approximately 100,000 cubic yards of disposed material. The Darling Hill Dump was operated by the Village of Lyndonville from 1952 through 1972 and by Ray O. Parker and Sons, Inc. from 1972 through 1989, when operation ceased. Routine testing by the State of Vermont in 1982 revealed the presence of low levels of volatile organic compounds (VOCs) in the Village of LyndonviEe Municipal Well Field. The Darling Hill Dump was included on the National ------- Darling Hill Dump, Region 1 (Continued) Priorities List (NPLJ on October 4, 1989. The draft remedial investigation (RI) and feasibility study (PS) reports were completed in January 1992 and April 1992, respectively. Nine Potentially Responsible Parties (PRPs) were identified in 1989 who either owned or operated the facility, generated wastes shipped to the facility, arranged for disposal of wastes at the facility, or transported wastes to the facility. The Town of Lyndon has a population of 5,100 people; 1,400 live in the Village of LyndonviEe. The Lyndonville Municipal Well Field is located approximately 0.5 miles southwest of the dump and provides water for approximately 3,200 people. The area surrounding the Darling Hill Dump is predominantly open agricultural and residential land. The Darling HiE Dump consists of 3.5 acres on the top of the north-facing slope of Darling HiE, which is a narrow ridge between the East and West Branches of the Passumpsic River. An area containing wetlands and a ftoodplain is about 300 feet below the dump along the west branch of the Passumpsic River. Actions: A carbon filtration system for the municipal water supply was constructed by the PRPs in 1991 to address contamination of the drinking water while investigation of the site was in progress. EPA determined that the Darling Hill Dump site was a No Action site, so no remedial actions were required. However, ground-water monitoring will be performed for a minimum of 5 years. 6 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Kearsarge Metallurgical Corp., Region 1 Conway, New Hampshire Status: Onsite source control activities commenced on July 15, 1992, and were completed on September 30, 1992. Onsite ground-water treatment was conducted from February 8, 1993, to September 24, 1993. Five-year reviews will be used to ensure the remedy will remain protective of human health and the environment. A portion of the site is scheduled to be used as a parking lot; the remainder of the site will be vacant. Results and Benefits: Removal of contaminated wastes and soils has greatly reduced the potential of surface exposure to hazardous substances and the continued leaching of contamination into the ground water. Ground-water remediation is expected to restore the ground water to drinking water quality. Background: Precision stainless steel castings were manufactured on this 9-acre site from 1964 until Kearsarge Metallurgical Corporation went out of business in 1982. Of the 9 acres, Kearsarge owned 5; the 4 remaining acres were under different ownership, but are included within the site boundaries. The wastes produced from the processes of making the casts (casting, cleaning, finishing, and pickling) initially were disposed of in an onsite septic tank and leach field, and two waste piles. After a 1979 State order prohibited the company from disposing these wastes into the septic system, Kearsarge began storing wastes in drums and the waste piles; the drums were later removed from the site. A hydrological study completed in 1982 revealed that a potential drinking water aquifer had been contaminated, primarily with volatile organic compounds (VOCs) and metals, including chromium and nickel. The closest drinking water wells are two wells that supply water for the municipality and a water supply well for the residential area across the Pequawket Pond. The municipal wells are approximately 3,000 feet north of the site and supply most of the water to the area. Pequawket Pond marks the southern boundary of the site and is used for recreational purposes. Approximately 8,100 people live within 3 miles of the site and use area ground water for drinking. Actions: In June of 1982, 17,800 gallons of acid, 54,000 pounds of caustic solids, and 660 gallons of flammable solvents were removed from the site by order of EPA and the New Hampshire Bureau of Solid Waste Management An additional seven drums of various types of wastes were removed in April 1991. Onsite remediation activities commenced on July 15, 1992, and consisted of: removing and disposing of the septic tank and 41.85 tons of crushed drums at a Subtitle D facility, incinerating (offsite) two capacitors and the contents of the septic tank; excavating and disposing of 250 yards of contaminated leaching field soils; excavating and disposing of 13,621 tons of waste pile material to a Subtitle D landfill; and cleaning a caustic mixer and disposing of the material at a Subtitle C landfill. ------- Kearsarge Metallurgical Corp., Region 1 (Continued) Onsite source control activities were completed on Setember 30,1992. An onsite ground-water treatment facility was constructed and operational by February 8,1993. Ground-water treatment was completed by September 24, 1993. 8 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Keefe Environmental Services Site, Region 1 Epping, New Hampshire Status: The State is currently operating a ground-water treatment facility as a long-term remedial action at the Keefe Environmental Services site. This 60-gallon-per-minute facility treats contaminated ground water containing volatile organic compounds (VOCs) and iron using chemical and physical unit processes. Institutional controls prohibit ground-water use on the site. The site is currently being maintained as a wetlands. Results and Benefits: Early actions by the State removed imminent health and safety hazards, including explosive, flammable, toxic, and reactive wastes stored onsite. These actions protected the 1,300 residents of Epping, New Hampshire, and the water resources adjacent to the site. Future remedial activities are focused on ground-water cleanup (soil at the site, already meets cleanup standards). Background: This rural 7-acre site is located approximately 2 miles southeast of the municipal center of Epping, New Hampshire. It was operated as a hazardous waste bulking and treatment facility from early 1978 until January 1981, when the company filed for bankruptcy. During its operation, the site consisted of drum storage areas and a 700,000-gallon waste lagoon. Surface water accumulation in the swamp area at the northwest comer of the site drains toward the Piscassic River, which is used seasonally as a drinking water source for the town of Newmarket, New Hampshire. Actions: In July 1982, the State removed imminent health hazards, including shock-sensitives, explosives, water reactives, toxic gases, and spontaneous combustibles from buildings on the site. The State removed approximately four, 100 55-gallon drums; four 5,000-gallon and four 10,000-gaUon aboveground tanks; and 7 dumpsters from the site. The State also contracted to have the 700,000-gallon lagoon drained and the liner removed. In addition to taking emergency actions to stabilize the site, in 1983, the State began a remedial investigation to define the nature and extent of contamination at the site. Of primary concern were natural resources near the site, especially the ground water and two streams that originate adjacent to the site and that eventually drain to the Piscassic River. The remedial investigation was completed in 1985. A study was then performed to evaluate cleanup options applicable to the contamination problems. This study was completed in 1988. EPA issued a Record of Decision (ROD) in March 1988. Upon further testing, soil remediation was deemed no longer necessary because soil contamination levels met the cleanup standards provided in the ROD. The adjusted remedial actions included pumping and treating ground ------- Keefe Environmental Services Site, Region 1 (Continued) water using air stripping, filtration, and carbon adsorption with discharge of the treated ground water back to the ground. EPA issued an Administrative Order to the responsible parties, who had 1 year (starting in February 1991) to complete all phases of construction at the site. In late 1991, it became apparent that the responsible parties were not going to comply with this Administrative Order. EPA and the State then made the decision to use Superfund money to construct the ground- water treatment plant. The final plans, specifications, and bid documents were completed in February 1992, and construction started in June 1992. The plant was operational in March 1993. 10 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET McKin Company, Region 1 Gray, Maine Status: Construction of the remedy at the McKin Company was complete in September 1990, and the system was operational in October 1990. A design for expansion of the existing ground- water extraction and treatment system was expected to be completed in July 1993. The existing ground-water treatment system will operate for at least 5 years or until performance standards are met. The Potentially Responsible Parties (PRPs) will continue the long-term offsite monitoring program and maintain the site area for 10 years following the final termination of the ground-water extraction and treatment system. The site currently consists of a small building located in a meadow. Results and Benefits: The health of the affected population has been protected by placing residences with contaminated weEs on the public water supply while ground-water treatment is underway. Treatment and/or removal of contaminated soil and removal of waste materials onsite have protected human health and the environment from the threat of exposure from the soil. Ground-water monitoring will continue for 10 years after termination of ground-water treatment to further ensure the protectiveness of the remedy. Background: The McKin Superfund site is approximately 7 acres, located in a rural residential area about 1 mile east of the center of Gray, Maine. Approximately 300 people live within a 1 /2-mile radius of the site. The McKin Company operated a waste collection, transfer, and disposal facility at the site between 1965 and 1978. From 1972 through 1977, the facility handled between 100,000 and 200,000 gallons of waste annually. Complaints from nearby residents in 1973 concerning odors and discolored laundry alerted officials to potential ground-water contamination. Sampling was conducted by the Town of Gray. Volatile organic compounds (VOCs), primarily trichloroethylene (TCE) and 1,1,1-trichloroethane, were detected in the ground-water samples. Subsequently, an emergency health ordinance was issued by the Town of Gray, placing a moratorium on new construction in the vicinity of the site. In 1977, the site included approximately 22 metal storage tanks, an asphalt lined lagoon, a sump manhole, a concrete block building, an incinerator, and over 200 55-gallon drums. Soil samples collected in 1977 detected TCE and xylene. The results of a hydrogeologic assessment showed contamination of many private wells in the vicinity of the site. In December 1977, contaminated private wells were capped and emergency water supplies were provided to residents. Public water service was extended to the area in 1978. State-supervised removal of liquid waste at the site began in 1979. The McKin site was listed on the National Priorities List (NPL) on September 1, 1983. The site was designated as a State-lead site. Interim remedial measure work began in August 1983 and included removal of tanks, drums, and liquid waste from the site and installation of a chain-link fence. ------- McKin Company, Region 1 (Continued) Actions: Onsite aeration of contaminated soils and construction of a ground-water extraction and treatment system were chosen as the remedy for the site. The Record of Decision (ROD) also requested offsite disposal of remaining drums, additional testing of petroleum contaminated soils, monitoring of offsite ground water and surface water, and site removal and closure activities. Performance standards were also established. Remedial design/remedial action (RD/RA) was divided into two operable units; the first addressing the onsite aeration of contaminated soil and site closure activities, and the second addressing the offsite ground-water extraction and treatment system. The demolition of site buildings, disposal of remaining drums and an underground storage tank, and disposal of debris were conducted concurrent with a pilot study for soil remediation. Full-scale aeration of the VOC- contaminated soil began on July 8, 1986, and was completed on February 3,1987. Treatment of petroleum-contaminated soil was performed in March and April 1987. Site demolition and final closure were completed on June 23,1987. A total of 11,456 cubic yards of contaminated soil were excavated, treated, verified analytically, and backfilled. The ground-water extraction and treatment system proposed by the PRPs consisted of four extraction wells in the portion of the ground-water contaminant plume near the site and a treatment system incorporating an air stripping unit followed by aqueous phase granular activated carbon adsorption and vapor phase granular activated carbon adsorption. It was recognized that additional activities would be necessary to remediate the entire plume; however, in the interest of initiating the remediation, it was agreed to begin construction and treatment, with further refinements as necessary, based on additional hydrogeologic investigation. Construction was complete in September 1990, and the system was operational in October 1990. 12 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Mottolo Pig Farm, Region 1 Raymond, New Hampshire Status: A pre-final inspection was held on September 23,1993. Construction of the vacuum extraction system (VES) is complete, and the system is operational. It is anticipated that VES soil cleanup will be complete by September 1994 and ground water cleanup through natural attenuation will be completed by September 1999. Results and Benefits: The remedial activities: address the principal threats to human health and the environment; eliminate the threat of contamination of a potential water supply aquifer resulting from source area soils; and reduce the contamination threat to a surface drinking water supply. Background: The 50-acre Mottolo Pig Farm site is an abandoned pig farm located in an undeveloped wooded area. From 1975 to 1979, Richard Mottolo, the owner of the property, disposed of chemical manufacturing wastes from two companies in a 1/4-acre fill area adjacent to the piggery buildings. During this 4-year period, over 1,600 drums and pails of wastes (including organic compounds such as toluene, xylene, and methyl ethyl ketone) were disposed of at the site. State studies showed that ground water beneath the site was contaminated and that contaminants were seeping into a brook that empties into the Exeter River. The Exeter River is a drinking water supply for the nearby communities of Exeter, Hampton, and Stratham. An estimated 1,600 people within 3 miles of the site depend on ground water as a source of drinking water. The nearest resident is approximately 200 yards to the west of the site. Residential areas border the site on three sides. Actions: An EPA funded waste removal action began on December 14, 1981, and was completed on February 4,1982. Many of the containers were repacked into 80-gallon recovery drums prior to transportation offsite. Approximately 160 cubic yards of contaminated soils, drum parts, and plastic sheeting used in the drum staging areas were also transported offsite for disposal. The former disposal area was regraded and seeded. The Record of Decision (ROD) for the site was signed in March 1991, and remediation construction began in September 1992. Remediation activities included: constructing a 10-foot high chain-link fence around the site perimeter; constructing a ground-water interceptor trench in the former drum disposal area; collecting uncontaminated water in the trench and discharging it to the ground water on the downstream side of the contaminated soils; installing seven VES wells in the contaminated soil areas; installing a 20-mil polyethylene cap with air injection points over the contaminated soil in area 1 to limit shortcircuiting of air flow; and constructing a steel building to house the VES system. The VES system became fully operational on September 29, 1993. ------- Mottolo Pig Farm, Region 1 (Continued) Ground-water remediation is being conducted through natural attenuation of the overburden and bedrock aquifers. This part of the remediation has been ongoing since 1991 and is expected to continue until September 1999. Five-year reviews of the ground-water samples will be used to ensure the effectiveness of the remediation activities. 14 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Plymouth Harbor/Cannon Engineering Corporation, Region 1 Plymouth, Massachusetts Status: The Plymouth Harbor/Cannon Engineering Corporation (CEC) facility was closed to 1980 by the Commonwealth of Massachusetts. A baseline risk assessment completed after the remedial and removal actions of 1988 showed that use of the site for commercial or industrial purposes does not pose a threat to public health or the environment. The remedy selected for the Plymouth Harbor/CEC site did not include activities with operation and maintenance requirements. The site owners, Salt Water Trust, are responsible for maintenance and repair of the fence, which was constructed in 1987. To assure that the remedy remains protective of public health and the environment, institutional controls, in the form of deed restrictions, were placed on the site to prohibit residential development. Because institutional controls are necessary, EPA must conduct 5-year reviews to assure that the remedy remains protective. The first site review was completed December 1992. The site was deleted from the National Priorities List (NPL) to November 1993. Results and Benefits: All cleanup activities identified in the Record of Decision (ROD) have been successfully implemented, and institutional controls have been placed on the site. Based on consultation with the Commonwealth of Massachusetts, EPA believes that the site is protective of public health and the environment across all pathways of exposure. Five-year reviews will assure that the remedy remains protective. Background: The Plymouth Harbor/CEC site is located to an industrial park known as Cordage Park in Plymouth, Massachusetts. Part of Cordage Park has been converted to a retail complex, but industrial uses predominate near the waterfront and adjacent to the site. The Plymouth Harbor/ CEC site consists of approximately 2.5 acres, bordered on the northeast perimeter by Plymouth Harbor and on the southeast perimeter by a tidal stream. The site lies in the 100-year floodplain. The historic area of Plymouth Rock is located 1.5 miles southeast of the site. The Plymouth Harbor/CEC site is one of four separate but related sites that form the Cannon Engineering Corporation Superfund Sites, which are all being handled under one enforcement effort. The Plymouth Harbor/CEC site contained three above-ground storage tanks dating from the 1920s. Each tank was surrounded by an earthen berm measuring 6 to 8 feet in height. Tanks No. 1 and No. 2 each had a storage capacity of 250,000 gallons, and Tank No. 3 had a storage capacity of 500,000 gallons. The tanks stored No. 6 fuel oil and bunker C oil until 1974, when the practice was discontinued. In 1975, CEC leased the tanks for storage of waste oils and liquid hazardous substances. Onty the two smaller tanks were used for this practice. In 1979, CEC was licensed by the Commonwealth of Massachusetts to store wastes at the facility, however, on June 12, 1980, an Order of Revocation was issued, and CEC was ordered to cease operations immediately (because of alleged document falsification related to 15 ------- Plymouth Harbor/Cannon Engineering Corporation, Region 1 (Continued) hazardous waste reporting). Inspections conducted in the early 1980s indicated that the two smaller tanks were leaking a mixture of hazardous wastes onto the soil below. The CEC Plymouth Harbor site was placed on the National Priorities List (NPL) in September 1983, and it was deleted from the NPL in November 1993. The remedial investigation (RI) and the feasibility study (FS) were finalized in June 1985. The critical contaminants of concern were determined to be PAHs, lead, and pesticides. The greatest potential risks at the site were determined to be direct contact with, or accidental ingestion of, onsite contaminated soils. Actions: When Plymouth Harbor/CEC was shut down by the Commonwealth in 1980, about 500,000 gallons of liquid hazardous substances stored in two above-ground tanks were abandoned at the facility. One tank was drained and cleaned in September 1983, and the second was drained and cleaned in January 1984. As stated in the consent agreement of August 1983, EPA was responsible for one tank, and Salt Water Trust was responsible for the other. The ROD issued in September 1985 specified the following actions: (1) dismantling and disposal of the three storage tanks and associated piping at an appropriate offsite facility; (2) supplemental sampling to confirm the pattern of contamination and to characterize the distribution of contamination in the soil; and (3) a site specific floodplains assessment was also required. The floodplains assessment concluded that the Plymouth Harbor/CEC site lies within the 100 year floodplain. The site was fenced in June 1987 to prevent uncontrolled access. The three storage tanks were inspected, decontaminated, demolished, and disposed of offsite during the fall of 1987. Pursuant to a consent decree, in September 1988, stained soils adjacent to Tank No. 1 were removed by the Potentially Responsible Parties (PRPs). Approximately 200 tons of soil contaminated with oily materials and hazardous substances were excavated and disposed of at a Subtitle C hazardous waste facility. In addition, approximately 50 tons of surface soil from the bermed area were excavated and disposed of along with the stained soils. Sampling was conducted to verify that cleanup criteria were met. The area was then backfilled with clean soil and regraded as specified in the floodplains assessment. 16 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Revere Textile Print Corporation, Region 1 Sterling, Connecticut Status: EPA has determined that no action is necessary to address the contamination that remains at the Revere Textile Print Corporation site. Previous response actions eliminated the need to conduct additional remedial action at the site. The Town of Sterling acquired the Revere Textile Print Corporation site in October 1988 and is the current owner of the property. Recently, a light industrial park has been developed; tenants include a machine shop, a computer paper manufacturer, a liquid soap manufacturer, and a rubber tire incinerator. EPA will perform a minimum of 5 years of additional monitoring of the ground water and sediments, with 5-year reviews to ensure that the "No Action" decision remains protective of human health and the environment. The site is currently in the category of "sites awaiting deletion." Results and Benefits: Only very low levels of contaminants in the ground water, surface water, surface and subsurface soils, and sediments remain at the site. Previous soil and source removal activities reduced the soil contamination to acceptable levels. The ground water on site does not currently pose a threat to human health because it is not currently used as a drinking water source. Future land use of the site is expected to involve industrial and commercial activity as it has in the past and, therefore, will remain protective of human health. The Town placed restrictions on ground-water and land use, excluding noncommercial development. However, both ground-water and sediment monitoring will be performed to confirm that no unacceptable exposures occur in the future. Monitoring of the public supply well is also included. Background: The Revere Textile Print Corporation site consists of approximately 15 acres in the rural Town of Sterling, in Windham County, Connecticut. The site is situated 1-mile west of the border with Rhode Island. The Moosup River and Sterling Pond are located southwest and southeast of the site, respectively, on the opposite side of Main Street and Route 14. Spillway channels (one that passes through the Revere site) allow pond overflow to merge into the Moosup River downstream of the site. The Moosup River is used for recreational activities, including fishing. Fresh-water wetlands were identified downstream of the site; no critical habitats of threatened or endangered species were identified within a 1-mile radius of the site. Land use in the area surrounding the site is a mix of rural residential, industrial, and agricultural, interspersed with woodlands and meadows. Sterling is serviced by municipal water supply wells located approximately 1,000 feet west of the site. All homes in the vicinity of the site are connected to the municipal water supply system, with an estimated 4,538 people served by ground water within a 3-mile radius. The site has long been used for industrial purposes, starting as a cotton mill in 1809. Since 1904, the site has been occupied by textile processing facilities, including, most recently, the Revere Textile Print Corporation, which 17 ------- Revere Textile Print Corporation, Region 1 (Continued) operated from 1966 through 1980. Throughout the history of dyeing operations at the facility, process rinse water and leftover printing pigments were reportedly disposed down floor drains and into the Moosup River. Residents observed the dumping or the resulting coloring of the waters. In 1978, after an order from the Connecticut Department of Environmental Protection (CTDEP) to reduce the organic color levels discharged, the Revere Textile Print Company began drumming the wastes and shipping them offsite for disposal. After the contracted drum hauler went out of business, large quantities of the wastes were stored onslte. In March 1980, a fire forced the facility to shut down. A CTDEP inspection of the site in September 1980 revealed over 1,500 drums of waste material remaining at the site, stained soils near the former drum storage areas and pigmented waste piles by the fill area of the SpiEway Channel and across Route 14. In 1982, the site was sold to a metal stamping business which abandoned its operations there in 1983, The site was placed on EPA's National Priorities List (NPL) in 1987. The remedial investigation was completed in 1992. The property is now owned by the Town of Sterling and has been developed into an industrial park. Actions: In September 1980, the owner of the site was ordered by CTDEP to remove the drums remaining onsite. This action was completed in 1983 with the removal of 1,500 drums. An unspecified amount of stained soil was also removed at this time for offsite disposal. Several additional 55-gallon drums and 5-gaUon cans containing liquid waste material were discovered during an EPA inspection in 1989 and were removed and disposed of by the Town of Sterling in 1991. These response actions eliminated the need to conduct additional remedial action at the site. EPA monitoring of ground water and sediments began in 1992 and will be conducted for at least 5 years. 18 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Saco Tannery Waste Pits, Region 1 Saco, Maine Status: A joint pre-final inspection has been conducted by EPA and the State. All preliminary completion requirements for the site have been met, and all cleanup activities have been successfully implemented. Ground water will be monitored by EPA through October 1996, at which time the State of Maine will conduct ground-water monitoring. Land use restrictions remain to effect. The State of Maine owns adjoining wetlands. The site is in informal use as a wildlife preserve. Results and Benefits: The removal of liquid wastes, the neutrali2ation of sludges, the capping of three pits, the installation of soil cover systems, and the institutional controls have significantly reduced the potential risk of exposure to site-related contaminants, and have protected the human health and the environment. The remedial action provided an innovative approach to wetlands mitigation and preserved the regional ecosystem, the Saco Heath. Background: The Saco Tannery Waste Pits site covers 233 acres and was operated from 1959 until 1981, when the Saco Tannery Corporation filed for bankruptcy and stopped site operations. The site was used as a disposal area for process wastes such as chromium sludges, acid wastes, methylene chloride, and caustic substances. More than 23 million gallons of wastes were deposited in two lagoons and 57 disposal pits. Several types of wastes were deposited in Chromium Lagoon 1 until 1968. At that time, wastestreams were separated, and Chromium Lagoon 2 was constructed for chromium and solid wastes only. The smaller disposal pits were used for acid wastes from the grease-rending fleshing process and for caustic wastes from the patent leather process. The site is bordered by the Maine Turnpike, Flag Pond Road, residential properly on Hearn Road, and the Scarborough town line. Access to the site is controlled by a fence along the Maine Turnpike and Flag Pond Road, with a locking gate at the entrance on Flag Pond Road. Ground water is the source of drinking water for residents located south and west of the site. Approximately 20 residences are located within 1,000 feet of the site, and 2,600 people live within a 3-mile radius of the site. Because the area is heavily wooded and is inhabited by a variety of wildlife, it is frequently used by hunters. The site is also used by snowmobilers in the winter. Actions: From July to October 1983, EPA, in a removal response action, remediated three acid pits that posed immediate and significant risk to human health. EPA pumped the liquid from the pits, neutralized the remaining sludge with lime, capped the pits, and erected a fence around portions of the site property. After the Record of Decision (ROD) was signed in 1989, the State of Maine established institutional controls in 1991, and remedial construction activities began in September 1992. Remediation consisted of site preparation ------- Saco Tannery Waste Pits, Region 1 (Continued) and a soil cover system. Site preparation was excavated and consolidated with Lagoon 2 included: clearing the site; installing erosion material because the seep had extended onto and sediment control fencing; installing private property. Other remedial activities temporary and permanent security fencing; and included: removing ponded water from pits and constructing storage areas, decontamination lagoons; surveying final cover contours and areas, and a field office area. Soil cover systems installing permanent markers; designing and were installed over the waste pits, lagoons, solid installing a monitoring network; and performing waste area, the wet area beyond pit 9, and monitoring of ground water/surface water. Chromium Lagoon 2 seep. Also, a second seep 20 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Sylvester's/Gilson Road, Region 1 Nashua, New Hampshire Status: An initial emergency action and construction of the ground-water treatment system have been completed. Remedial actions at this site have reduced contamination levels. Additional ground-water treatment is ongoing and will continue until established cleanup goals are met. The site is currently vacant. Results and Benefits: Due to a swift emergency action, a threatened release of hazardous chemicals into a river system that supplies water for several Massachusetts cities and towns was avoided. Physical, biological, and chemical treatments were used to remove toxic chemicals from the site's underlying ground water. The removal, fencing, capping, and ground-water containment activities have reduced the risk of exposure to hazardous materials at this site, and the threat of direct contact with contaminants in the soil has been eliminated. This project was the first Superfund site to have progressed to the construction of a remedial treatment facility. Background: The Sylvester's/Gilson Road hazardous waste site, considered the Nation's first Superfund site, is located in the city of Nashua, New Hampshire, off Route 111, in the southeastern comer of that community. The 6-acre site had been used for an undetermined number of years as a sand borrow pit During the 1960s, after much of the sand had been removed from the property, the operator of the pit began an unapproved and illegal waste disposal operation, apparently intending to fill in the excavation. Household refuse, demolition debris, chemical sludges, and hazardous liquid chemicals were dumped onsite at various times. This illegal activity was first discovered in late 1970. After several court actions, an injunction was issued in 1976 that ordered the removal of all material from the site. The illegal operations continued, however. The first indication that hazardous wastes also were being dumped occurred in November 1978, when State personnel observed drums being stored at the site. In 1979, approximately 900,000 gallons of hazardous waste were discharged to leachfields onsite, contaminating the soil and millions of gallons of ground water. A court order was issued in October 1979 that prohibited further disposal of hazardous wastes on the site. It is estimated that the site accepted hazardous waste for a period of approximately 5 years. The site is in a residential area, with approximately 1,000 people living in an adjoining mobile home park. Five private water wells are within a 1/4 mile of the site. The site is about 680 feet from Lyle Reed Brook, which flows through the trailer park and enters the Nashua River, a source of drinking water for the area. New Hampshire successfully brought suit in State court for reimbursement of costs incurred against the property owner and potentially 21 ------- Sylvester's/Gilson Road, Region 1 (Continued) responsible parties (PRPs) for managing and disposing of wastes at the site. Actions: In 1979, the State removed 1,000 drums from the site. In early 1980, EPA constructed a fence around the dumping area and removed 1,314 accessible surface drums. Later that same year, EPA began to mitigate the movement of substances into Lyle Reed Brook. The temporary remedy used was to intercept and recirculate the contaminated ground water to prevent it from reaching Lyie Reed Brook. The State constructed a below-ground wall on a 20-acre area surrounding the site and built an impervious cap to prevent any further migration of the contaminated onsite ground water. A ground-water treatment facility was constructed to remove toxic substances in the ground water. The entire treatment process consists of a combination of physical, chemical, and biological treatments. 22 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Tows Garage/Radio Beacon, Region 1 Londonderry, New Hampshire Status: A Limited Action Record of Decision (ROD) was issued by EPA with natural attenuation selected as the remedy. No construction activities were necessary, so a pre-final inspection was not required. Five-year reviews will be required during the natural attenuation process. Results and Benefits: The six residences that were found to have contaminated wells were connected to the public water supply in 1989 and 1990. Contaminated ground water in the overburden and bedrock aquifers is expected to be restored to beneficial use by natural attenuation. This process is expected to take 2 to 3 years for the overburden aquifer and 7 to 25 years for the bedrock aquifer. Until that time, institutional controls have been implemented to protect the public health. Ground-water monitoring will also assure the protectiveness of the remedy. Background: The 100-aere Town Garage/Radio Beacon site includes a residential development of 23 homes (Holton Circle), the Londonderry Town Garage on High Range Road, and an undeveloped hill and wetland area between the Town Garage and Holton Circle. The property where the Town Garage is located was previously owned by the U.S. Department of Defense (DOD) and was used as a radio beacon tower facility during World War H. The Town of Londonderry is the current owner and has been named as the Potentially Responsible Party (PRP). The primary contaminants of concern at the site and 1,1- dichloroethene (DCA), 1,1,1-trichloroethane (TCA), and several inorganics, including total chromium, barium, beryllium, and antimony. The source of contamination has not been confirmed. Excluding the Town Garage, land use in the immediate vicinity is residential. Approximately 7,400 people obtain drinking water from private wells within 3 miles of Holton Circle. The site was proposed to the National Priorities List (NPL) on June 21, 1988, and was added to the final list on March 31, 1989. Actions: The remedy specified in the ROD consisted of (1) restoration of contaminated ground water in the overburden and bedrock aquifers by natural attenuation; (2) institutional controls to prevent ingestion of contaminated ground water; and (3) ground-water monitoring. The goal of the selected remedy is to restore contaminated ground water to its beneficial uses in 2 to 3 years in the overburden aquifer and 7 to 25 years in the bedrock aquifer. Six residences with contaminated wells were connected to the public water supply in 1989 and 1990. Ground-water monitoring will continue until the intermediate cleanup levels have not been exceeded for 3 years. ------- Page Intentionally Blank 24 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Western Sand & Gravel, Region 1 Bunillvffle, Rhode Island Status: Remedial actions have been completed. The site is currently fenced and inactive. Deed restrictions prohibit future development until monitoring wells indicate that remaining ground-water contamination has dissipated. Results and Benefits: EPA selected an alternative that protected human health by immediate alternate water hookup and minimized surface disturbance of the surrounding area. The Record of Decision (ROD) called for the contamination levels to attenuate naturally, with close monitoring performed by the responsible parties. Surface water cleanup goals have been achieved. Background: This 20-acre site was originally a sand and gravel quarry operation. From 1975 to April 1979, a 12-acre portion of the property was used for the disposal of various liquid wastes. Contents of tank trucks that were emptied directly into open lagoons or pits eventually seeped through the highly permeable soil. Twelve lagoons and seepage pits, concentrated on the west side of a hill that slopes down to Tarkiln Brook, were surveyed during a preliminary site survey in February 1980. Analyses of the wastes in the pits by EPA and the State indicated that the wastes contained either septage or chemicals. Other studies conducted at this time also showed that the chemical wastes had infiltrated ground waters and were flowing westerly through an aquifer into the surface waters of Tarkiln Brook. A number of homes are in the path of subsurface water contamination. Some wells supplying these homes showed low levels of contamination. Actions: Under a Cooperative Agreement, the responsible parties closed all private wells in the area and extended the municipal water line to approximately 50 residences. In addition, the responsible parties had to maintain control over the surrounding lots of land by purchasing or leasing. This action ensured that the water supply to the residences would not be compromised by overburdening the system and that illegal well drilling would not occur. The ROD called for pumping and treating the ground water only when contaminants met certain "trigger1' levels. These "triggers" were when contamination was found in the bedrock aquifer, or if the contaminant plume began to migrate offsite or was found in the adjacent brook. Wells were drilled on and around the site to detect such occurrences. 25 ------- Page Intentionally Blank 26 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Danville Tire Fire, Region 1 Danville, New Hampshire Status: All emergency response activities at this site have been completed, and all tires have been removed from the site. The site is currently imder the aegis of the State. Results and Benefits: Efforts by local firefighters and the Superfund Emergency Response Team effectively extinguished the tire fire before it developed into a major pollution incident. Due to the rapid response, offsite migration of chemical contaminants was avoided. Subsequent sampling has not detected contaminants in onsite monitoring wells or offsite residential wells. Background: On September 10, 1989, a fire of suspicious origin began in an 8-acre pile of tires in Danville, New Hampshire. Of 5-million tires, approximately 1 million were burning. This dump is located in a rural area inhabited by less than 1,000 people within a 1-mile radius. Dangerous chemical contaminants are commonly emitted from burning tire fires. If not controEed quickly, a tire fire can escalate to threaten the local inhabitants and the surrounding land, air, and water. A concerned citizen called the National Response Center (NRC) about 3 hours after the fire had started. NRC is staffed and operated by the U.S. Coast Guard (USCG). NRC, in turn, notified the appropriate EPA regional office and the USCG district office. Actions: Within an hour of notification, EPA dispatched an Emergency Response Team to the site. Nearly 60 fire departments were enlisted to try to contain the blaze. At least 50 people were evacuated from their homes. By the next morning, it was dear that water alone would not be sufficient to extinguish the flames. EPA recommended smothering the fire with soil. By 8:00 a.m. on September 11, trucks had begun hauling soil to the site. By mid-afternoon, analysts determined that the offsite air was free of chemical contamination, and residents were allowed to return to their homes. At midnight, workers finally extinguished the fire, but as a precaution, continued to cover and spread soil until dawn. Superfund's emergency response role was complete, but EPA continued to watch the site for several months. For 1 week, small flare-ups occurred, but were quickly smothered. Air samples were collected at various points above the new soil cover to ensure that contaminant levels were within safe limits. By using aerial infrared photography and temperature probes, EPA monitored the site's temperature through the ensuing months. In the spring of 1990, EPA workers sampled nearby surface water and six nearby residential wells for contamination from the melted tires. Five monitoring wells were installed to determine whether contaminants were migrating from the site. For the next 5 months, EPA analyzed samples from both the monitoring and residential wells. 27 ------- Danville Tire Fire, Region 1 (Continued) To ensure the protection of ground water and the safety of the community, the State excavated and removed all 5-million tires for offsite disposal. 28 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Eastern Surplus Supply Co., Region 1 Meddybemps, Maine Status: The Superfund removal actions to address this site's contamination have been completed. The site is currently fenced and inactive, and remains in the ownership of Eastern Surplus Supply Company. Results and Benefits: Remedial actions have reduced the threats posed by hazardous materials contamination. The threats included endangennent of wildlife, such as the bald eagle and the Atlantic salmon, and contamination of the drinking water supplies of an estimated 200 people who use private drinking water weUs located within a 4- mile radius of the property. Background: The Eastern Surplus Supply Company site covers approximately 3 acres near the center of Meddybemps, Washington County, Maine. The site is bordered by Meddybemps Lake to the north and the Dennys River to the east. Beginning in 1946 until the early 1980s, this property was the location of the Eastern Surplus Supply Company, a retailer of army surplus and salvage items. The site contained large volumes of scrap metal, junk cars, old appliances, miscellaneous personnel equipment, and a variety of hazardous materials including ammunition. These materials were stored in compressed gas cylinders, drums, and 5-gallon cans. In addition, the site also included a trailer full of calcium carbide and numerous electrical transformers containing oil contaminated with polychlorinated biphenyls (PCBs). Contamination from the site threatened the adjacent Meddybemps Lake and the Dennys River. Both of these surface water bodies maintain active fisheries and spawning areas, a national wildlife refuge, and a habitat for the federally endangered bald eagle. The river near the site is also an active spawning area for Atlantic salmon; the salmon in the Dennys River have been proposed to be listed as endangered species. Actions: This property was originally inspected in October 1985 by the Maine Department of Environmental Protection (MEDEP). During this inspection, MEDEP personnel noted heavy chemical odors, hundreds of leaking electrical transformers, over 2,000 compressed gas cylinders, 16,000 pounds of calcium carbide, and stained soil. MEDEP immediately initiated emergency cleanup and removal measures and erected a fence to secure the properly. EPA took over the removal in November 1986 and finished it in 1990. Source sampling, arranged by the MEDEP and EPA between 1985 and August 1990, identified over 50 different hazardous materials on the property, including PCBs, chlorinated organic compounds (solvents), heavy metals, acids, paints, oils, asbestos, and pesticides. The removal action was extremely complex and was conducted in several phases due to the large variety of contaminants and the various ways in which these materials were stored. All cylinders had to be either treated or vented on ------- Eastern Surplus Supply Co., Region 1 (Continued) the property due to the aging and instability of vented to the atmosphere and cylinders the compounds in the cylinders. Contaminated containing flammable gases were vented and soil was removed and replaced with clean soil, rendered inactive under controlled conditions. Cylinders containing atmospheric gases were 30 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Industri-Plex Site, Region 1 Woburn, Massachusetts Status: Industri-Plex has been cited as the first Federal Superfund site slated for substantial reuse. Planning and remedial activities are being undertaken by two trusts, one established to oversee a coordinated program of environmental cleanup, and another to oversee economic revftalization for the site. Construction and redevelopment are in progress. Results and Benefits: Successful development at the 245-acre Industri-Plex site could serve as a national model for linking environmental and economic policy. Plans by the trusts call for not only the remediation of the site, but also for economic development leading to jobs and essential transportation services. Remedial engineers for the site are planning a wetlands area that will benefit wildlife and provide a valuable floodplain. Major goals of this effort include ensuring that site reuse protects both public health and the environment, and that the remedial action is selected and planned with future use of the property in mind. By the trusts' estimates, incorporating the transportation center parking lot into the remedial construction plans from the beginning will result in an estimated 80 percent cost savings. According to current plans: 110 acres will be developed commercially, including existing commercial development; 35 acres will be developed for public transportation; and 100 acres will likely remain wetlands and open land. A study conducted by the Woburn Chamber of Commerce through a grant from the Department of Federal Highways has shown that the planned transportation infrastructure resulting from the construction of the new 1-93 interchange and the transportation center will attract commercial businesses to the area, creating 16,000 new jobs by the year 2010. Background: The Industri-Plex site lies in a highly accessible area 1 mile northwest of the intersection of 1-93 and Route 128, one of the region's busiest and most congested interchanges. It is located 12 miles north of downtown Boston and is bisected by the Massachusetts Bay Transit Authority commuter rail line. From the mid-1800s to the late 1960s, a number of manufacturing facilities on the site produced chemicals for textiles, leather, paper products, and insecticides. Decaying hides from tannery operations, activities from chemical plant operations, and late night dumping activities produced a variety of contamination at the site. The Industri-Plex site, currently a combination of 60 acres of commercial businesses and 185 acres of undeveloped land, comprises of wetlands, open land, streams, ponds, roads, railroads, utility rights-of-way, and existing commercial activity. In 1968, the property was purchased by a real estate trust for development into an industrial park. Excavation exposed the hide wastes left from the tannery-related operations, releasing ------- Industri-Plex Site, Region 1 (Continued) emissions of hydrogen sulfide and methyl mercaptan gas. The noxious smell, later called the "Woburn odor," prompted public concern. A 1979 investigation by State and Federal regulators found: soil contaminated with chromium from tannery operations and with lead and arsenic from insecticides; ground water contaminated with toluene and benzene; and air polluted with hydrogen sulfide. EPA subsequently designated approximately 100 acres of the Industri-Plex site as a hazardous waste site and, in 1982, placed the site on the Superfund National Priorities List (NPL), naming it the fifth worst in the country. In 1989, EPA secured a consent decree, a legal agreement between State and Federal Governments and the Remedial Trust (22 potentially responsible parties (PRPs)), outlining legal requirements for site remediation and future reuse. An entity called a Custodial Trust was formed to take title to the land, finance the remedial activities, oversee current and future development, and ultimately, to sell the property. At that time, the real estate developer still owned 117 acres of the 245-acre site and deeded this property to the Custodial Trust. In exchange, the owner was relieved of all past and future liabilities associated with the site. Other parties still have title to their portion of the land. Because the entire site was not contaminated, other owner-operated businesses remain solvent. The Custodial Trust provided a mechanism in the Superfund process to facilitate remediation while integrating future development of the site into the remedy. Actions: Initial remediation at the site will address three areas: contaminants in the soil, wetlands sediments, and air. The major goals of the remediation are to isolate site wastes to prevent exposure to the contaminants and allow safe redevelopment of the property. The first phase of the cleanup will address ground-water pollution on an interim basis. Additionally, a separate area-wide study will be required to develop an appropriate cleanup plan. A limited ground-water study will follow. Currently one of four hide piles, a source of the infamous "Woburn odor," is the subject of remedial construction. Plans for remediation of this area are closely tied to its ultimate use as the site of the new transportation center. The buried hides will be covered by a 12-inch-deep gravel pack containing perforated pipes. The pipes wiU collect the gases produced by the decaying hide residue, and will convey them to a treatment facility. The gravel pack will be sealed by high density polyethylene material to create a gas-tight barrier to the environment that will also allow rainwater to drain off without being contaminated. Fourteen inches of dean fill and 4 inches of topsoil will be placed on top of the cover, and deep root plants will be removed to prevent root systems from breaching the polyethylene covers. Approximately 250,000 cubic yards of clean soil will be needed to cover the contaminated soil. The site will then be graded and contoured to ensure proper runoff. The planned 2,500-car asphalt parking lot for the transportation center will provide an additional impermeable cover on top of the dean fill that will cover the wastes. A new wetlands area is planned to enhance existing wildlife habitats. The new habitat will be located downgradient of the existing hide piles, and will serve as floodplain protection in the event of a 100-year storm. Contaminated wetlands wiU be dredged and indigenous forms of plant and animal life will be restored to the area. 32 ------- Lndustri-Plex Site, Region 1 (Continued) The timetable for remedial actions is as follows: • 1996 • 1994 — Continuation of soil cover/wetlands/ hide pile remedy construction. — Approved design and construction initiation of ground-water remedy. — Design of institutional controls (to regulate future use). — Development of 1-93 Regional Transportation Center and Com- merce Way extension. •1995 — Completion of soil cover/wetlands/ hide pile remedy. — Design completion and initiation of institutional control procedures to protect remedy during development and use. The companies that are part of the Remedial Trust are obligated to op- erate and maintain the remedial fa- cilities for 30 years. The expected completion date for the hide pile, soil, and wetlands remediation is the end of 1995. Completion of the limited, interim ground-water remedy is also expected for 1995. As part of its ongoing commitment, EPA will maintain jurisdiction over the site after development is completed, imposing institutional controls such as deed restrictions to protect the remedy during development and use. ------- Page Intentionally Blank 34 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Nyanza Chemical, Region 1 Middlesex County, Massachusetts Status: Activities that have addressed the contamination at the site include capping the source and constructing diversion trenches around the stockpiled materials to prevent the leaching of materials into either surface or ground water. Concern for the onsite contamination related to hazardous compounds has been addressed. Cleanup of the surrounding area, including an adjacent wetlands, and cleanup of contaminated ground water underlying the site are currently in the design phase. Twenty-five miles of mercury- contaminated sediment in the Sudbury River remain to be addressed. EPA has reposted signs warning of mercury-contaminated fish in the river. Results and Benefits: Soil contamination by leachate from a leaking settling basin/vault was quickly stopped by EPA's removal actions. This source of volatile organic compounds (VOCs) contained residuals from dye-manufacturing wastes. The ongoing threat to ground water and surface water in the nearby river was halted. The contamination that had escaped into surrounding land and the Sudbury River is being addressed in long-term efforts under EPA's remedial program and is currently in the design phase. Background: The 35-acre site, approximately 25 miles west of Boston, was used from 1917 until 1978 for textile dye manufacturing and is within 250 yards of a residential area. Dye-manufacturing wastes leaking from an abandoned inground settling basin were contaminating nearby soil, threatening the ground-water and surface-water routes to a reservoir used for recreation and previously under consideration as a supplemental drinking water source for Boston. Nitrobenzene, trichlorobenzene, and other volatile organic substances were found in concentrations over 9,000 parts per million (ppm). Mercuric sulfate and other heavy metal contaminants were found and have been associated with elevated mercury levels in fish. A health evaluation by the Agency for Toxic Substances and Disease Registry (ATSDR) identified these substances as immediate health risks, should they be released to the environment. Actions: With dear evidence of spreading contamination, EPA quickly initiated removal efforts even though the responsible parties could not be identified. Removal efforts targeted an inground concrete vault (settling basin) that had been abandoned in 1974-1979. This vault was removed in a round-the-clock operation during which the abutting industrial facility was evacuated in response to EPA's request. Diversion trenches were constructed to halt runoff. A portion of the contaminated soil was treated by onsite incineration. The remainder, too wet to be dewatered for incineration, was stabilized and shipped along with 25,000 gallons of contaminated vault water to a RCRA-approved landfill. Subsequent remedial action consolidated contaminated soils on Megunko Hill and constructed an impermeable cap and ground water/surface water diversion trench. ------- Nyanza Chemical, Region 1 (Continued) Decisions have been made to remediate ground water at the site and to remediate soil/sediment adjacent to the site. Both of these remedies are currently in the design phase. Further study of the 25-miles of the mercury-contaminated sediment in the Sudbury River is ongoing. ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Pease Air Force Base, Region 1 Rockingham County, New Hampshire Status: Redevelopment and reuse of areas addressed by remedial actions are ongoing. Results and Benefits: Approximately 1,100 acres of shoreline and sensitive wetlands areas have been transferred to the Department of the Interior POI) as a national wildlife refuge, and the remainder of the 4,365-acre site is being made available to the State of New Hampshire's Pease Development Authority (PDA). Transference to DOI will ensure that fragile habitats remain intact. As part of their efforts to manage the property and monitor wildlife diversity, DOI plans to maintain early successional habitat stages, improve food and cover where appropriate, encourage use by rare species, and develop mature forest stands to provide den trees and nest sites. DOI use of the property will protect and enhance the wetlands areas. The plan by PDA is for a phased development of Pease Air Force Base (AFB). The focal point of the plan is the use of the existing runway and the airport-related facilities as an international hub for world trade and high technology industry. Major components of the plan include: a medium-sized international airport with air cargo and aircraft retrofit capabilities; international services; light industry; a warehousing and distribution center, including a free-trade zone; a commerce center and research park, including hotels and a conference and exhibition center; retail outlets; and substantial open space, including an 18-hole golf course. A notable aspect of this site is that the reuse by PDA is ongoing concurrently with the environmental restoration work, which is a result of close coordination between each participating agency during all activities. Background: Originally, this 4,365-acre Air Force base maintained a combat-ready force capable of long-range bombardment operations. As a result of the reduced threat in Europe and recently enacted legislation, Pease AFB was closed as an active military base on March 31, 1991. The New Hampshire Air National Guard remains at the airfield and will use some of the existing facilities. The Air Force is required by Section 176 of the Clean Air Act to ensure it does not engage in, support, or approve any activity that does not conform to the State's air quality plan for attaining acceptable pollution levels. Pease AFB is in an area that is designated as "serious* nonattainment for ozone. The air quality analysis of the area indicates that air emissions generated by the expected redevelopment of the airport will add to the level of ozone precursor emissions currently experienced in the Portsmouth metropolitan area. 37 ------- Pease Air Force Base, Region 1 (Continued) As a result, PDA, the New Hampshire Department of Environmental Services, and EPA concluded a Memorandum of Understanding that allows redevelopment of Pease AFB while continuing to reduce air emissions in the Portsmouth area. Actions: The Installation Restoration Program (IRP) is the Department of Defense program for identifying locations of and releases from past disposal sites and minimizing associated hazards to public health. The IRP was initiated at Pease AFB in 1983. The Air Force will continue its IRP until all contaminated sites are remediated. Subsequent to EPA placing Pease AFB on the National Priorities List (NPL) on February 21, 1990, a Federal Facilities Agreement was signed by the U.S. Air Force, EPA, the State of New Hampshire's Department of Environmental Services, and the New Hampshire Attorney General on April 24, 1991. Under this agreement, Remedial Project Managers from these agencies, with the U.S. Air Force as the lead agency, will oversee IRP activities. In addition to the ongoing investigations and analyses, 10 expedited efforts have been undertaken to reduce the risk to the environment from known contaminant sources. Four pilot ground-water extraction and treatment plants have been installed to recover and treat contaminated ground water. In addition, soil removal actions at three locations and three drum removal actions have been completed and the Record of Decision (ROD) has been signed. 38 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Robson Residence Site, Region 1 Searsmont, Maine Status: All immediate removal actions have been completed at this site. The owner returned to her home on May 31, 1991, and currently lives there. Results and Benefits: The abandoned laboratory no longer poses a threat of explosion or hazardous material release to the environment. Within 5 months of discovery, all waste had been removed from the basement, and the chemicals had been disposed of at approved facilities. Background: The Robson Residence Site was discovered in January 1991 after the property owner offered to donate glassware and laboratory equipment to a local high school. The owner's husband had been synthesizing aniline-based dyes, and laboratory notes indicated that the last time he worked in the laboratory was June 1973. A chemistry teacher from that high school visited the residence and noticed a large number of chemicals. On January 29, 1991, he informed the State of the existence of a chemistry laboratory in the basement of the property owner's home. The teacher also informed the State that the owner had removed a bottle of anhydrous picric acid from the laboratory and brought it into her residence to clean. Aged picric acid is shock-sensitive and highly explosive. Actions: The teacher alerted the State of the conditions at the Robson home. His information triggered a State investigation in which explosives and hazardous and radioactive compounds were identified. The possibility of explosion and fire was very real. Four days later, the Explosive Ordnance Disposal Team from Brunswick Naval Air Station eliminated the most immediate threat by removing and safely detonating the container of picric acid at the Searsmont Landfill. EPA investigators later investigated the site, confirmed the State's findings, and estimated that 2,000 containers of chemicals remained in the laboratory. EPA then established 24-hour security at the site and temporarily relocated the owner so that the cleanup team could remove gas cylinders and other chemicals from the laboratory. Other shock-sensitive materials including additional containers of picric acid were discovered and secured in the laboratory. Workers also identified and isolated several containers of radioactive materials. With the help of local agencies, EPA transported 533 unmarked containers to the landfill, stabilized their contents, and repacked the materials in 55-galton drums. Aided by the State and local authorities, EPA detonated 19 additional shock- sensitive containers at the Searsmont landfill. The residential well and septic system contained no evidence of contamination, so the owner was able to return to her home. The basement was completely emptied and cleaned. ------- Page Intentionally Blank 40 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Wells Metal Finishing Site, Region 1 Lowell, Massachusetts Status: All emergency removal activities have been completed at this site as of August 1992. After completion of these activities, control of the property was returned to the owner. Reuse of this commercial site is possible because no residual contamination exists. Results and Benefits: The threat of hydrogen cyanide gas being released into a populated area has been removed. The potential for water supplies near the site being contaminated by hazardous chemicals has been addressed by immediate Superfund actions. Background: On September 13,1990, Superfund emergency managers responded to a request by the State to address improperly stored and leaking chemical containers at the Wells Metal Finishing site which presented an immediate danger. The site is near downtown Lowell. Open, leaking, metal plating vats contained acids and caustics strong enough to burn or induce respiratory failure in anyone who touched the vats or breathed the fumes. Highly corrosive materials were seeping from the drums into the building, damaging other containers of cyanide salts. Four drums of these cyanide salts were open or badly corroded. Had these salts mixed with the acids, the reaction would have produced lethal hydrogen cyanide gas. Many people lived and worked nearby; small businesses, a condominium complex, and private homes surrounded the site. In addition, the leaking containers threatened Hales Brook, which flows under Wells Metal Finishing and into the Concord River. Actions: Municipal authorities offered their help to the EPA team. Police secured the area, the fire department stood by in case of fire or medical emergency, and the chief health inspector was on the scene to address community concerns. In the next 48 hours, Superfund emergency workers * Sampled and analyzed plating solutions; • Separated incompatible materials; « Safety packed nine cyanide drums; • Placed 54 leaking containers of unknown materials into larger overpacking drums; * Pumped out 715 gallons of muriatic acid from a leaking plating vat; and • Inventoried 162 drums, 40 plating baths, and 30 small containers for future disposal. The emergency team reported to Superfund managers that, although they had resolved immediate concerns, the site was still dangerous and all remaining hazardous materials should be removed. EPA ordered the building owners to conduct the removal. The owners did not comply, however, and the EPA took over the action. Between February and April 1992, EPA cleanup staff 41 ------- Wells Metal Finishing Site, Region 1 (Continued) analyzed and organized the hazardous wastes had to be pounded out with power hammers. and arranged for their proper disposal. The By May, all waste remaining onsite was plating vats were pumped out, and their drummed and safely stored for final disposal, contents drummed or shipped offsite. The which took place in July 1992. solids that had accumulated in the plating vats 42 ------- REGION TWO ------- Page Intentionally Blank ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Action Anodizing Hating and Polishing, Region 2 Town of Babylon, New York Status: "No Action' was the selected remedy for the Action Anodizing Plating and Polishing (AAPP) site. A 1-year monitoring program was completed in 1994 and established that the remedy is protective of human health and the environment. Previous cleanup activities were conducted at the site in 1980, and the remedial investigation/feasibility study (RI/FS) completed in 1992 showed that the site no longer poses a significant threat to human health and the environment. A 5-year review is not required because no hazardous substances remain onsite. The site now qualifies for the "sites awaiting deletion" subcategory of the Construction Completion category of the National Priorities List (NPL). The AAPP facility still operates at the site. Results and Benefits: Remediation of the leaching pits was ordered by the Suffolk County Department of Health Services (SCDHS) and removed the most significant contamination known to exist at the site. Based upon the findings of the RI performed at the site, EPA, in consultation with the State, has determined that the site does not pose a significant threat to human health and the environment. Thus, a no action remedy was selected for the site. A 1-year monitoring program was established to ensure that the remedy is protective of human health and the environment. Background: The AAPP site is located in the Hamlet of Copiague in the Town of Babylon, Suffolk County, New York. The site is approximately 1- acre in size and is 1-mile east of the Nassau- Suffolk County line. The population of the Town of Babylon is approximately 203,500. The area surrounding the site is predominantly light industrial and residential. Public supply wells are the primary source of drinking water in the area; approximately 1 million people obtain drinking water from public wells within 3 miles of the site. Amityville Creek and Woods Creek are the nearest downgradient surface water bodies and are located approximately 1/2-mile south of the site. There does not appear to be any significant wildlife habitat on the AAPP property. AAPP, a small metal-finishing shop, has operated at the site since 1968. A commercial laundry operated at the site for approximately 30 years before AAPP opened for business. AAPFs operations primarily involve sulfuric acid anodizing of aluminum parts for the electronics industry, cadmium plating, chromate conversion coatings, metal dyeing, and vapor degreasing. Liquid wastes from these operations include rinses of spent caustic and acidic solutions contaminated with cadmium, chromium, zinc, and sodium cyanide. Prior to 1980, rinse water was reportedly stored in a concrete waste holding trough in the floor, from which it was pumped into a steam boiler. The 45 ------- Action Anodizing Plating and Polishing, Region 2 (Continued) steam was condensed and reused as process make-up water. The solids from the rinse water were allowed to build up in the boiler tubes until the tubes became plugged, at which time the boiler would be replaced with a new unit. The concrete trough was connected to a septic tank on the north side of the building. Tank over flow fed into a series of six leaching pits on the east side of the building. A site inspection in 1980 by the SCDHS revealed that rinse water from AAPPs operation was discharging to the leaching pits rather than the low pressure steam boiler. Sampling showed elevated levels of cadmium, chromium, and nickel in the leaching pits, and AAPP was ordered to cease discharge to the leaching pits and remove the soils and sediments of the leaching system. AAPP cleaned and closed the leaching system in the spring of 1980, and the pits were back-filled with clean fill materials. The company now hauls its industrial wastes offsite for disposal. The AAPP site was placed on the NPL in March 1989. The RI/FS was conducted from July 1989 through April 1992. Chromium and lead were found at levels above the maximum contaminant levels in at least one ground-water monitoring well, and organic constituents were identified in the soil boring samples; however, the contaminants were not present at significant concentrations or in any consistent pattern. Cadmium was detected in the surface soils at approximately 20 times above typical background levels. It appeared that industrial materials from site operations were not being discharged to the drainage system. The exposure pathway with the greatest risk was for the future ingestion of chemicals in the ground water by an adult, if the aquifer beneath the site was to be used as an untreated source of drinking water. None of the current or future risks to human health posed by carcinogenic and noncarcinogenic contaminants from the various pathways considered exceeded EPA's allowable levels. Actions: AAPP cleaned and closed the leaching system in the spring of 1980 as ordered by the SCDHS, and the pits were back-filled with clean fill materials. This action removed the contamination known to exist at the site. EPA and the State have determined that the site no longer poses a significant threat to human health and the environment, so no additional remediation is required. 46 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Beachwood/Berkeley Wells, Region 2 Ocean County, New Jersey Status: The selected alternative for the Beachwood/ Berkeley Wells site was to take no remedial action tinder the Superfund Program. The primary cause of the lead contamination in the drinking water is the residential plumbing systems in the area, with minor contributions from the area's native ground water. No man- made or industrial sources of contamination were identified. The sources are not covered under the CERCLA program, so the drinking water contamination problems will be addressed by the State of New Jersey. It is EPA's general policy not to delete sites at which hazardous substances remain above levels that limit the use and unrestricted exposure following the completion of all remedial actions at a site unless a 5-year review is conducted. The New Jersey Department of Environmental Protection (NJDEP) and the Ocean County Health Department (OCHD) have taken steps to respond to public health concerns and to provide alternate water supplies until permanent remedies are completed, so the 5-year review policy wiE not apply in this situation. The Beachwood/Berkeley Wells site was deleted from the National Priorities List (NPL) on January 6, 1992. Results and Benefits: Although the no action remedy selected for this site does not address the protection of public health; independent State, county, and local actions have been undertaken since the onset of the identified problem to address health protection and are described below in the "Actions* section. Background: The Beachwood/Berkeley Wells Superfund site covers the 2.7-square mile Borough of Beachwood, and the 40-square mile Township of Berkeley in eastern Ocean County, New Jersey. Both communities were recommended for the NPL because of elevated levels of lead in the drinking water. Beachwood has a population of approximately 8,000, and Berkeley has a population of approximately 23,000. The entire Borough of Beachwood is currently served by a public water supply system. The Garden State Parkway, running north and south, serves as the western boundary for the majority of the population. The undeveloped Pine Barrens are located west of the Parkway. In March 1982, the NJDEP investigated a public complaint in Beachwood Borough involving possible contamination in drinking water. One of four subsequently sampled wells contained levels of lead at approximately four times the Federal Interim Drinking Water Standard (FIDWS) of 50 ppb. NJDEP and Ocean County Health Department conducted a sampling program in the summer of 1982. Approximately 20 percent of the 601 wells sampled had lead levels above the FIDWS. An expanded sampling program identified that approximately 3 percent of Berkeley Township residential wells tested had lead levels above the FIDWS. No geographical pattern emerged, and the contamination could not be related to a particular source. The borough and the township had no likely industry that could have produced the lead contamination. The site was place on the NPL on September 8, 1983; it was 47 ------- Beachwood/Berkeley Wells, Region 2 (Continued) deleted from the NPL on January 6, 1992. The remedial investigation (RI) was performed between April 1986 and July 1987, and the report was finalized in May 1988, concluding that the major portion of lead contamination resulted from leaching of lead components in wells and plumbing systems, with minor amounts contributed through environmental media. Leaching could be further acerbated where relatively acidic ground water reacted with plumbing system components, as evidenced in the Berkeley Township area. Actions: OCHD closed private wells with elevated lead levels in 1982, and provided bottled water for affected residents in Beachwood and Berkeley. In 1983, after an administrative order was issued by NJDEP, Beachwood Borough completed construction of an extension to the public water supply system to service all Beachwood residents. In 1986, OCHD passed an ordinance requiring a prerequisite water test to be paid by all residential real estate purchasers prior to issuance of a certificate of occupancy. A confirmed water test failure requires correction of the problem prior to the sale of the property. In 1988, the Berkeley Township Municipal Authority was formed to explore construction of a public water supply. NJDEP has an on-going, state-wide, public education program underway to identify the consequences of lead exposure and the measures homeowners can take on an interim and long-term basis to reduce their risk. NJDEP is also conducting an evaluation of corrosion control needs and practices of all public water companies in the State. Combined with the EPA-revised drinking water regulations for lead, the State programs information will prompt NJDEP to take appropriate steps, including enforcement actions if necessary, to insure all public water systems meet regulated standards for drinking water. 48 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET EEC Trucking, Region 2 Town of Vestal, New York Status: Binghampton Equipment Company (BEC) Trucking declared bankruptcy in 1981. The wastes left onsite were removed in 1983 and 1991. "No Further Action" was specified in the Record of Decision (ROD) for the BEC Trucking site, with provisions for a monitoring program to ensure that the selected remedy continues to be protective of human health and the environment. The monitoring program includes the collection of surface water, ground water, and sediment samples. Monitoring conducted during 1991 showed that significant migration of contaminants from the site is not occurring. After 5 years of monitoring, EPA will evaluate the results and decide if monitoring should be continued. A 5-year review was to be conducted in 1994 by EPA and the State of New York, The site is currently owned by COGS, Inc. and is used for the storage of construction materials and for saw milling operations. Results and Benefits: The "No Further Action" alternative for the BEC Trucking site is based on the results of the remedial investigation/feasibility study (RI/FS), which determined that the site does not pose a significant threat to human health and the environment and is not a source of significant concentrations of any hazardous substances. The initial monitoring program verified that the selected remedy is protective of human health and the environment. EPA will continue monitoring activities through 1996 to ensure that the selected remedy remains protective. Ground-water use is unlikely because the site is currently industrial; installation of new ground water wells is not prohibited, but it is expected that new residents would be connected to the Town of Vestal municipal water system; the ground water beneath the site discharges into the marsh; and any future potable water wells would likely utilize the uncontaminated bedrock aquifer. Background: The BEC Trucking site is an open lot of approximately 3.5 acres located in the Town of Vestal in Broome County, New York. The area surrounding the site is primarily industrial and commercial. The site is bounded by Stewart Road to the south, open lots to the east and north, and wetlands to the west. A petroleum tank farm distribution terminal is located near the eastern border of the site. The property was sold to Haial Trucking (which later became BEC Trucking) in the mid-1960s. At the time of purchase, the site was unimproved marshland owned by the Stewart family. Upon purchase of the property, Haial Trucking filled the marshland with fly ash or similar material, covered with silt, sand, and gravel fill material. A 1-acre marshland area remains unfilled, and a surface drainage ditch traverses the eastern and northern perimeter of the site. Haial Trucking used the site for storing trucks and tankers. BEC Trucking was involved in truck body fabrication and maintenance of large trucks. Two industrial buildings that housed BEC Trucking maintenance operations are located immediately south of Stewart Road. Waste hydraulic oil and waste motor oil were reportedly generated as a result of this operation. 49 ------- BEC Trucking, Region 2 (Continued) Drums containing waste engine oil, cutting oil, and other liquid waste materials were routinely stored on the site. In September 1981, BEC Trucking filed for bankruptcy. Concerns related to contamination at the BEC Trucking property began in May 1982, when the Town of Vestal found evidence of illegal dumping of miscellaneous debris and the improper storage of approximately 50 drums containing petroleum and chemical products. A New York State Department of Environmental Conservation (NYSDEC) inspection of the site subsequently revealed 20 drums containing various liquid waste materials, including waste engine or cutting oils, enamel reducers, paint thinners, and waste solvents. In June 1982, the Vestal Code Enforcement Office received an anonymous telephone call alleging that BEC Trucking disposed of liquid waste in the marsh area and that cleaning effluent from the steam cleaning of chemical tankers undergoing maintenance by BEC was commonly discharged to the ground surface at the site. The site was purchased by COGS, Inc. in February 1983, following a foreclosure auction on the property. A portion of the property was transferred to Downside Risk, Inc. in April 1983. The site was included on the National Priorities List (NPL) in June 1986, based on sample results showing the potential for exposure to lead in ground water. An RI/FS was conducted at the site by EPA's contractor in 1988. The primary contaminants of concern included arsenic, lead, volatile organics, and polycyclic aromatic hydrocarbons (PAHs). Actions: In August 1983, COGS, Inc. contracted with an NYSDEC-approved waste hauler to remove the 50 surface drums. Stained soil located around the drums was excavated and contained in four drums onsite; these drums were removed by EPA in March 1991. EPA and the State of New York determined that no further action is necessary for this site based on the RI/FS. Ground-water monitoring will track the contaminant concentrations and determine the need for continued monitoring. 50 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET BioClinical Laboratories, Region 2 Town of Islip, New York Status: EPA and the State of New York have determined that the BioClinical Laboratories pCL) site does not pose a significant threat to human health or the environment. This determination is based on previous cleanup activities and the remedial investigation (RI). The Record of Decision (ROD) signed for the site specified, "No Further Action." This remedy will not result in hazardous substances remaining onsite above health-based levels, so the 5-year review does not apply. The site is now in the "sites awaiting deletion" subcategory of the National Priorities List (NPL). The companies that caused the contamination are no longer in business, but the site has been leased to other tenants for industrial and commercial purposes. Results and Benefits: The risk assessment indicates that the level of contaminants present onsite does not pose unacceptable risks. Because low levels of volatile organic compounds (VOCs) were found in some monitoring wells, the owners of existing downgradient private weEs can request that the Suffolk County Water Authority sample their wells to ensure that their drinking water continues to be of acceptable quality. The public water supply was expanded to the vicinity of the site, so many private well users were subsequently connected to the public water supply. Background: The BCL site is located in the Hamlet of Bohemia, to the Town of Islip, in Suffolk County, New York. The site is approximately 0.5 miles south of Long Island's MaeArthur Airport. BCL occupied Unit I of a 1-story, 10-unit building containing approximately 39,000 square feet of floor space and situated on a 2.6-acre paved lot. The building is serviced by two onsite sanitary systems, each consisting of a septic tank, distribution pool, and related storm drain drywells, located south of the building on the east and west sides. The land near the site is zoned for industrial and commercial use. The closest residential development is approximately 1,000 feet south of the site, just beyond a 3- acre wooded lot. Aquifers are the sole source of potable water for the area population; municipal and private wells downgradient of the site serve approximately 10,000 people. . Low concentrations of VOCs were found in several private wells in 1981, but the public water supplies were not affected. BCL, founded in 1972, formulated and repackaged industrial chemicals for wholesale distribution to manufacturers. During processing, containers contaminated with various inorganic chemicals were washed, both indoors and outdoors, into the east sanitary system and to the storm drains at the front and rear of the building. A fire in July 1981 damaged BCL's chemical inventory and resulted in hazardous waste runoff and air emissions. Later that year, the Suffolk County Department of Health Services (SCDHS) ordered that the east sanitary sewer be cleaned. BCL was sold in 1984 and moved operations to another location. As of April 1990, the business had ceased operations. ------- BioClinical Laboratories, Region 2 (Continued) Another source of contamination at the site has been attributed to Panatone Finishing Corporation, a company involved in the preparation and application of finished metal products. Panatone, a tenant of Unit D, was connected to the west sanitary system of the building. Panatone was cited for numerous violations concerning improper discharge of hazardous substances. In September 1981, SCDHS ordered Panatone to cease discharges of hazardous materials to surface soils and the sanitary system, to clean up contaminated soils and to apply for pertinent discharge permits. Subsequently, a ground-water investigation was conducted, detecting 1,1,1-trichloroethane and 1,1-dichloroethane above applicable drinking water standards. In addition to the west sanitary system, Panatone utilized an unrelated leaching pool for the disposal of effluent on the north side of the building. This leaching pool was cleaned and removed from service by the property owner in October 1985. Panatone is no longer in operation. The NPL final listing occurred in March 1989. The RI was completed in March 1992. The west sanitary system required further cleaning in May 1992. Actions: In November 1981, the east sanitary system was cleaned out by BCL pursuant to a Decision and Order issued by SCDHS in September. SCDHS also issued a Consent Order to Panatone in September 1981 to cease discharges of hazardous materials to surface soils and the west sanitary system, to clean up contaminated soils and to apply for pertinent discharge permits. Panatone complied with the order in October 1981. In October 1985, the leaching pool on the north side of the building was pumped out, cleaned, and removed from service by the property owner. Pursuant to a December 1991 SCDHS directive, the owner of the building, in conjunction with the current tenant, cleaned out the contamination in the west system. This action occurred in May 1992. SCDHS attempted to secure the further cleanout of the east system by the owner of the property. No further action was required at this site. 52 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET C & J Disposal Leasing Co. Dump, Region 2 Hamilton, NT Status: Excavation and waste removal activities were completed on January 22,1993; site restoration was completed by June 24, 1993; and the site was inspected on June 29, 1993. Ground-water monitoring was completed in January 1994; and the site's security fence has been removed. The site is currently used as an access road. Results and Benefits: Complete removal of contaminated soil and debris from the site has eliminated the threat to human health and the environment. Removal of the source has protected the threat to ground water as well as the threat to a wetland that drains the site. No ground-water contamination has been detected onsite or in nearby residential drinking water wells. Background: The 1/10-acre C & J Disposal Leasing Co. Dump site consists of a disposal trench situated between a former railroad bed and an active agricultural field. The property is immediately adjacent to residential property owned by C & J Leasing. The trench was used during the 1970s for the disposal of industrial waste, despite the fact that it was never licensed as a landfill. The amount of material disposed in the trench is unknown. In 1976, C & J Leasing was observed dumping what appeared to be lead-based paints and other liquid industrial wastes into the trench. An inspection by the New York State Department of Environmental Conservation revealed 75 and 100 drums lying in a pool of stagnant waste in a trench. The trench was subsequently covered with clean fill, reportedly by C & J Leasing, burying the drums in the process. Sampling in 1985 revealed the presence of volatile organic compounds (VOCs), polycyclic aromatic hydrocarbons (PAHs), and lead in the soil and a small onsite pond. In 1989 C & J Leasing conducted an unauthorized excavation of the site, leaving two large holes and three stockpiles of soil and waste material. Some or all of the drums may have been removed at this time and disposed of offsite. Approximately 3,000 people live within 3 miles of the site and depend on private wells for drinking water. Twelve residences are within 1,800 feet of the site and are also served by private wells. The surrounding area is rural. The site drains to a wetland that ultimately discharges to Woodman Pond, located 3,000 feet south of the site. Woodman Pond, which provided drinking water to an estimated 3,800 people in the Village of Hamilton until 1989, now serves as the backup water supply for the Village. Actions: The remedial activities began on August 24, 1992, and were completed by June 29, 1993. Remediation included: installing improved security measures; implementing the Wetlands Protection Plan prior to any excavation activities; constructing a drainage pad to drain the soils before removal; removing and transporting over 2,400 cubic yards of contaminated soil and debris to a RCRA-compliant waste management facility, backfilling, regrading, and revegetating the site according to Madison County Soil and Water Conservation District standards; and quarterly testing of both on-site wells and nearby ------- C fit J Disposal Leasing Co. Dump, Region 2 (Continued) residential wells for 1 year after remediation. Modifications in the Record of Decision (ROD) included: drying dewatered soils and stabilizing them using cement for transportation and disposal; excavating waste from an additional 140-foot to 200-foot long section of land; and adding screened stone to the backfill of the disposal trench. No remediation of the small pond was required. 54 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET ClotMer Disposal, Region 2 Granby, Oswego County, New York Status: Construction of the final remedial action was completed in September 1992. Long-term monitoring of ground water, soil, and Ox Creek sediment and surface water will be performed to evaluate any changes that may occur. A 5- year review will be conducted by EPA to ensure that the remedy continues to provide adequate protection of human health and the environment. Deed restrictions have been placed on this 15-acre inactive municipal landfill. Results and Benefits: The selected remedy reduced the risk level to humans by placing a 1-foot cover of clean soil over the contaminated areas, thereby reducing the threat of direct contact with and ingestion of the low-level contaminated soil. The threat to the environment (Ox Creek, the adjacent wetland, and neighboring properties) from soil erosion and surface water runoff was addressed by regrading and revegetation of the site. Institutional controls prevent the utilization of the underlying ground water, future residential development of the site, and disturbance of the soil cover. Background: The Clothier Disposal site is a privately owned dump located to a rural area near the Town of Granby, to Oswego County, New York. Six acres of the 15-acre site were used for waste disposal. From the early 1970s to 1984, the site was used for disposal of demolition debris, household wastes, junk vehicles, and approximately 2,200 drums of hazardous chemical waste from the Pollution Abatement Services, Inc. (PAS) National Priorities List (NPL) site. In 1971, the owner applied for a landfill permit, which was denied. In 1973, the Oswego County Health Department observed drums containing waste from PAS at the site and requested an investigation by the New York State Department of Environmental Conservation (NYSDEC). After the NYSDEC brought suit against the owner in 1976 for operating an illegal dump, the owner made several cleanup attempts, but drums were broken and waste materials were buried to the process. In 1983, a Phase I investigation was performed. Volatile and semivolatile organic compounds and a high concentration of heavy metals were found to the soil. Barium was found to Ox Creek sediments. Heavy metals, including cadmium, chromium, and manganese were found to the ground water. The site was included on the NPL to June 1986. Approximately 160 people live within a 1-mile radius of the site, with the nearest residence located 2,000 feet from the site. Private wells are used for drinking water. Land use to the vicinity of the site is predominantly agricultural. A wetland is located just west of the waste disposal area. Ox Creek flows through the site, feeding into the Oswego River, and a portion of the site lies within a 100-year flood plain. Actions: In 1986, drums were staged and characterized. Several potentially responsible parties ------- Clothier Disposal, Region 2 (Continued) subsequently removed 1,858 drums of waste. In 1987 and 1988, EPA removed the remaining drums and the contaminated soil and debris associated with leakage from the drums. Subsequent sampling indicated that low concentrations of residual contamination remained on the site. Final cleanup activities began in 1991. Seven additional drums were uncovered and removed during regrading of the soil cap. Installation of the soil cap and revegetation was completed in September 1992. The remedy selected for the site included: • Placing a 1-foot clean soil cover over the residually-contaminated areas; » Regrading and revegetating the site to prevent soil erosion and to minimize surface water runoff. (Installation of rip-rap, as specified in the Record of Decision, was not needed because erosion control from the regrading and revegetation was determined to be sufficient.); « Implementing institutional controls to prevent the use of underlying ground water and the future residential development of the site; and • Long-term monitoring of the ground water, soil, Ox Creek sediments and surface water. The remedial investigation/feasibility study (RI/ FS) investigation did not include the 11-acre wetland area, but samples were collected and analyzed as part of a post RI/FS study. This study indicated that a significant threat to human health and the environment does not exist, and that remedial actions for the ground water and wetlands are not warranted. 56 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Combe Fill North Landfill, Region 2 Morris County, New Jersey Status: The 65-acre landfill had not been properly dosed when the owner, Combe Fill Corp. (CFC) declared bankruptcy in 1981. As a result, the State, under EPA supervision, contracted to complete remedial action activities at the site. The New Jersey Department of Environmental Protection and Energy (NJDEPE) conducted a final inspection in 1991 and determined that the contractor had constructed the remedy in accordance with remedial design (RD) plans and specifications. The site is currently a dosed landfill. Results and Benefits: As a result of the remedial actions taken, the potential for any site contamination reaching nearby surface waters has been reduced. A drainage system has been installed to collect any potentially contaminated surface water draining from the site, and methane gas is now being released safely by a venting system. In addition, direct human or animal contact with site waste is now prohibited by the cap and security fencing. Background: The Combe Fill North Landfill is located on Gold Mine Road, near the junctions of US Highways 206 and 46 and Interstate 80 in Mount Olive Township, New Jersey. The residential communities of Netcong Boro and Budd Lake, a developed resort, are both less than 2 miles from the site. The former landfill comprises 65 acres of the 102.8-acre property. Much of the land surrounding the site is wooded; the developed areas are residential, with some farming and light industry nearby. A highly commercialized area is located nearby along Rt. 46. Approximately 10,000 people use ground water from private wells located downgradient (northeast) and within 2 miles of the site, but monitoring has shown that contaminant levels do not pose a significant risk to human health. Several small ponds are located onsite. Surface runoff drains into two small streams east and west of the site that are tributaries to Wills Brook, which empties into the Musconetcong River. The site was first operated as a municipal landfill beginning in 1966 and reportedly accepted municipal, vegetative, industrial (nonchemical) wastes, and small amounts of dry sewage sludge. Wastes were deposited in a marshy area and remain below the water table. From 1969 until 1978, the landfill was operated by Morris County Landfill, Inc. It was registered with the New Jersey Department of Environmental Protection (NJDEP) in 1976. From 1978 until 1981, the landfill was owned and operated by Combe Fill Corp. (CFC), a wholly owned subsidiary of Combustion Equipment Associates (CEA). CFC was repeatedly dted for violations of New Jersey solid waste administration codes. Public outrage at the operating practices of CFC lead to the formation of a citizens' group called SMOTHER (Save Mount Olive Township - Halt Environmental Rape) in 1979. This group conducted ground- water sampling around the site and was influential in initiating the process for ranking ------- Combe Fill North Landfill, Region 2 (Continued) the site on the National Priorities List (NPL). CFC including perimeter ditches and corrugated declared bankruptcy in 1981, prior to the metal pipes; install a methane venting system; addition of the site to the NPL in 1982. construct a security fence surrounding the site; and implement an appropriate monitoring Actions: program to ensure the effectiveness of the remedial action. The State contracted to have the following remedial actions conducted: grade and compact the 65-acre waste disposal area; cap the landfill in accordance with appropriate solid waste management criteria; install a drainage system, 58 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Cooper Road, Region 2 Voorhees Township, New Jersey Status: The Cooper Road site was deleted from the National Priorities List (NPL) on February 22, 1989, when it was determined that the site no longer posed a threat to the public or the environment. EPA and the State of New Jersey have determined that all appropriate responses under CERCLA have been implemented and that no further cleanup by responsible parties is appropriate. The site remains vacant. Results and Benefits: EPA and the State have determined that remedial actions conducted at the site have been protective of public health, welfare, and the environment. The contaminated soils and materials have been removed, thereby, eliminating any potential site-related health risks to the community and the environment. Tests conducted after the removal of the vials and contaminated soil showed that the site was safe to the surrounding community and environment. New residential developments in the area have been placed on the municipal water supply. Background: The Cooper Road site is a 100-square foot area in Voorhees Township in Camden County, New Jersey. The site contains an old borrow pit that had been excavated for fill material. Several vials containing volatile organic compounds (VOCs), such as benzene, ethylbenzene, and xylene, were discovered on the site in 1982. Several vials were broken. The State requested that the property owners remove the vials, but they did not comply. The property was sold in 1983, and the new owners took appropriate actions. The Cooper Road site was listed on the NPL on September 1,1984. It was deleted from the NPL on February 22, 1989. Approximately 1,400 people live within 3 miles of the site. The nearest residence is approximately 300 feet from the site, and the nearest private well is 500 feet away. New residential developments in the area are placed on the municipal water service. Actions: After the property was sold in 1983, the new owners, with State supervision, removed the vials, excavated 6 inches of contaminated soil, and disposed of the materials in a federally- approved hazardous waste facility. This action was completed to 1987. 59 ------- Page Intentionally Blank 60 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Friedman Property, Region 2 Upper Freehold Township, New Jersey Status: EPA determined in 1985 that the Friedman Property site did not require long-term cleanup actions to address the low-level residual contamination detected. Annual monitoring of onsite wells was required for a 5-year period to ensure that ground water remained within safe levels. The New Jersey Department of Environmental Protection (NJDEP) performed the monitoring. After EPA review, it was recommended that the State place deed restrictions on the property. The site was deleted from the National Priorities List (NPL) in March 1986; it is currently unused. A 5-year review is planned. Results and Benefits: After extensive investigations, EPA determined that the low levels of compounds in the ground water do not pose a threat to human health or the environment. Ground-water monitoring has shown that contaminant concentrations are within safe levels. Background: The 2-acre Friedman Property is an open, vacant lot. Drums and liquids were dumped into a ditch at the site in the late 1950s and 1960s. Ground water underlying the abandoned site was suspected to contain a number of contaminants. The site is in a rural area with scattered residences, commercial facilities, and several trailer parks, all dependent on local ground water as the source of drinking water. The site is bordered by an unnamed tributary of Lahaway Creek, a single-family residential property, and New Jersey routes 537 and 539. The Friedman Property was one of four NPL sites within a 2- mile radius. The site was listed on the NPL on September 1, 1983; it was deleted on March 7, 1986. Morton Thiokol Corporation was identified as the Potentially Responsible Party (PRP); however, its site evaluation plan was rejected, and NJDEP performed the investigation. Although ground-water samples showed low levels of creosote and volatile organic compounds (VOCs), a ground-water plume could not be defined. The results of the State's investigations led to EPA's decision to delete the site from the NPL. Actions: Long-term cleanup actions were not required to address the low-level residual contamination detected at the site. Annual monitoring of onsite wells was required for a 5-year period to ensure that ground water remained within safe levels. NJDEP performed the monitoring, with review by EPA. Wells at the site were recently closed. ------- Page Intentionally Blank 62 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Goose Farm, Region 2 Plumstead Township, New Jersey Status: As part of the remedial activities conducted at this site, the Potentially Responsible Party (PRP) has completed construction of the ground- water/soil-flushing system. The system will remove contaminants from the ground water through air stripping and carbon filtration. The system has been in full operation since the early summer of 1993. Results and Benefits: Security fencing, a clay cap, and a slurry wall are preventing exposure of humans and wildlife to the contaminants at the site. The site no longer poses a significant health threat. Surface remediation goals have been met. The ground- water treatment/soil-flushing system will be operational until the contaminants in the ground water are reduced to levels that do not exceed ground-water quality criteria. Background: This 6.6-acre site is one of seven sites located within a 20-square mile area of Ocean and Monmouth counties that was contaminated with chemical wastes, allegedly as a result of dumping by Thiokol Corporation from the 1950s to the early 1970s. Investigation of this site began in 1980 after an inspection by the State revealed that polychlorinated biphenyls (PCBs), volatile organic compounds (VOCs), acids, and metals were buried at the site. From 1980 to early 1981, the State removed containers of waste, bulk liquids, and visibly contaminated soil, and pumped and treated the contaminated ground water. In 1983, the site was placed on the National Priorities List (NPL). In 1985, EPA signed a Record of Decision (ROD) that required additional treatment of contaminated soil and ground water and further investigations to evaluate the extent of PCB contamination at the site. Between 1985 and 1988, Morton International Inc. (formerly Thiokol Corporation), under the supervision of EPA, sampled the soil and ground water to determine the nature and extent of the remaining contamination. The results showed that metals and VOCs were in the ground water, and PCBs and VOCs in the soil. Actions: In July 1988, a Judicial Consent Decree was executed that required Morton International to design and construct a system to dean the soil and ground water. The remedy included (1) containment of the contaminated ground water and soil by means of a 10-inch-thick clay cap and a subterranean slurry wall, and (2) treatment of the contamination by a ground- water pump and treat/soil-flushing system. By late 1992, Morton International had completed construction of the slurry wall and clay cap, excavated the PCB-contaminated soil, and installed security fencing around the site. ------- Page Intentionally Blank 64 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Helen Kramer Landfill, Region 2 Gloucester Co., New Jersey Status: The landfill, closed by court order in 1981, remains closed. Construction of a clay cap, slurry wall, and ground-water and gas treatment facilities have been completed. The New Jersey Department of Environmental Protection and Energy (NJDEPE) is responsible for long-term monitoring and maintenance of the remedy. Results and Benefits: Containment of hazardous materials, removal of contaminated sediment, collection and treatment of contaminated surface water and leachate, and trapping of gases produced at the site have significantly reduced the potential risk of exposure to site-related contaminants. Ground water is protected by preventing rainwater from infiltrating the cap. Surface water runoff controls prevent runoff into the Delaware River watershed. In additon, site access is controlled by a security fence, and long- term monitoring by the NJDEPE wiE ensure the continued effectiveness of remedial actions. Background: The Helen Kramer Landfill, located 5 miles south of Woodbury, New Jersey, encompasses a 65- acre refuse area with three leachate collection ponds and an 11-acre stressed vegetation area. Approximately 1,500 people live within a mile of the site; 10,000 people live within 3 miles. Several occupied dwellings are at or near the site boundary. Ground water provides drinking water for some residents, but most rely on public water supplies. Surface water is used for crop irrigation. The eastern boundary of the site is a tributary that drains into the Delaware River watershed. The landfill was originally a sand and gravel excavation operation; however, in the early 1960s, landfill operations began simultaneously with sand excavation. Several types of wastes were deposited at the landfill, including septic, municipal, hospital, and industrial wastes. Industrial wastes include sludges, waste oils, solvents, chemical intermediates, pesticides, plastics, acids and bases, heavy metals, catalysts, and paint and pigments. The waste is believed to be more than 50 feet thick in most areas. The bulk of wastes were disposed of directly into the landfill, not in containers. The landfill ceased operation in 1981 as a result of a court-ordered closure. An underground fire at the site in 1981 burned for about 2 months, emitting noxious fumes to surrounding areas. Ground-water sampling has showed that the underlying aquifer is heavily contaminated with organic compounds (trichloroethanes, benzene, toluene, and phenols) and inorganic compounds (arsenic, iron, and magnesium). la addition, VOCs and heavy metals have been found in air, sediments, soil, surface water, and the wetlands on the site. The site was added to the NPL in 1983. Actions: Extensive containment efforts included: » Construction of a clay cap over the site to prevent rainwater from spreading the buried contaminants; 65 ------- Helen Kramer Landfill, Region 2 (Continued) Dewatering, excavation, and filling of • Installation of a security fence leachate ponds and lagoons; surrounding the site; and Construction of an upgradient slurry • Implementation of a monitoring program containment wall to prevent ground water to assess the effectiveness of the from entering the site; remedies. Construction of a ground-water/leachate collection trench and collection and In addition, nearby residents were relocated treatment of the ground water/leachate when 14 real estate parcels were obtained, and collected from the trench; two private residences were moved. The New Construction of an active gas collection and Jersey Department of Environmental Protection treatment system; and Energy is responsible for long-term Implementation of surface water controls; maintenance of the remedial activities. 66 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Katonah Municipal Well, Region 2 Bedford, New York Status: Remedial actions to construct a new production well, plug and abandon the Katonah well, and begin operation of a new water treatment facility are complete and have eliminated risks at the Katonah Municipal Well site. Ground-water treatment by the newly built water treatment facility will continue until established cleanup goals for the site are met. Results and Benefits: The well, which supplied drinking water for 6,200 residents, was shut down quickly in December 1978 by county and State health officials, thus minimizing exposure and potential health risks. The town tied into an alternate water supply. Later cleanup measures undertaken by the town and EPA prevented the contamination from migrating to the Muskoot Reservoir and Katonah Brook, which supply drinking water for New York City. Background: The Katonah Municipal Well site is located in the Village of Katonah in the Town of Bedford in Westchester County, New York. The well is located on a peninsula that extends into the Muskoot Reservoir, which supplies drinking water to New York City. In the fall of 1978, the discovery of contaminants in a well supplying the nearby City of Brewster prompted the Westchester County Department of Health to survey a number of drinking water wells in the area. Samples taken from the Katonah Well revealed the presence of halogenated organics, including tetrachloroethylene, at levels exceeding State standards. Several sources of the contamination were identified. The New York State Department of Environmental Conservation traced the contamination to the disposal facility of a waste hauler who had coEected wastes from the septic systems of dry cleaners in the Village of Katonah. Also, sampling data later confirmed claims that Bedford town employees had dumped waste solvents down a sewer drain less than 100 feet from the Katonah Well. Actions: In September 1987, the selected remedy included installing a new production well, filling and sealing the existing Katonah well, constructing a new water treatment facility, and monitoring. In June 1988, EPA entered into a Consent Order with the Town of Bedford to implement the technical design for the cleanup remedies. In September 1988, EPA issued a Unilateral Administrative Order to the other four potentially responsible parties (PRPs), the dry cleaning establishments. In July 1989, EPA entered into a Consent Decree with the Town of Bedford to clean up the site. 67 ------- Page Intentionally Blank 68 ------- SUPERFUND SITE COMPLETED NFL SITE FACT SHEET Krysowaty Farm, Region 2 Hillsborough Township, New Jersey Status: The site was deleted from the National Priorities List (NPL) in 1989. Deed restrictions remain in place for the 1-acre former dump site to prohibit the installation of drinking water wells and future residential development Of the 42 acres at Krysowaty Farm, only a 1-acre parcel cannot be developed for residential use; this parcel is now occupied by a plant nursery. Results and Benefits: All known wastes and contaminated soil have been removed from the 1-acre illegal dump site. Homes in the area are now connected to a municipal water supply, Background: The Krysowaty Farm in Hillsborough Township was reportedly used as a midnight dump site for construction debris, tires, and drums of hazardous wastes from 1965 to 1970. Approximately 500 drums of paint, pesticides, and dye wastes were allegedly dumped, crushed, and buried on the site. Local residents became concerned when they smelled chemical odors in their well water. The New Jersey Department of Environmental Protection and Energy found the ground water to be contaminated with volatile organic compounds (VOCs). Actions: The Township provided bottled water to the residents threatened by the contamination until the homes could be connected to a public supply. The Township, acknowledging the negative influence of the dumpsite, lowered property taxes for 68 nearby homes during the time remedial activities occurred. EPA extended the Elizabethtown Water Company water main to the affected residences. In August 1985, the site was fenced to protect potential trespassers during the cleanup. The site cleanup included excavating and removing 13,700 cubic yards of contaminated soil and wastes to an approved hazardous waste disposal facility. EPA chose the least traveled routes for the trucks carrying the contaminated soil and waste, and distributed maps of the routes to the community in advance. Following the soil excavation and removal, the site was backfilled, covered with clean soil, and reseeded. ------- Page Intentionally Blank 70 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Lodl Municipal Well, Region 2 Bergen County, New Jersey Status: EPA has determined that No Action is necessary to address the contamination that remains at the Lodi Municipal Well, The radionuclides present at the Lodi Municipal Well site have been determined to be naturally occurring and, because the well is no longer being used for water supply purposes, an emergency does not exist. Remedial action is not necessary to ensure protection of human health and the environment from nonradiological compounds at the site because the concentrations of those compounds in the ground water do not pose an unacceptable risk. However, because ground water in the area has been found to contain sporadic contamination that is regional in nature, EPA has recommended that the ground water not be used for potable water supply purposes without appropriate treatment. Results and Benefits: Human health has been protected by closing the Lodi Municipal Well and providing Lodi residents with an alternative source of drinking water. Background: The Lodi Municipal Well site consists of 11 municipal wells that previously were used to provide drinking water to the Borough. One well, Garfield Avenue, was closed in 1981 due to volatile organic compound (VOC) contamination. In 1983, the Home Place Well was found to have elevated levels of radioactivity and was closed by the Borough, based on the recommendation of the New Jersey Department of Environmental Protection and Energy (NJDEPE). Testing by the State in 1985 revealed tap water to be contaminated with VOCs. The remaining wells were tested and found to be contaminated; all the wells were closed by 1987. Approximately 95 percent of Lodi's drinking water now are supplied by the Passiac Valley Water Commission, and the remainder is purchased from the Hackensack Water Company. Approximately 24,000 people live in Lodi and depended on these wells for their drinking water. The Saddle River flows through the Borough, but it is not used for recreation or fishing. Lodi is situated between the Hackensack and Passaic Rivers. Actions: The initial action occurred during the 1980s, the Borough of Lodi dosed 11 weEs, based on sampling data from the NJDEPE and the Lodi Water Department. The Borough of Lodi currently obtains potable water through private water supply companies. The Lodi Municipal Well is not utilized as a source of potable water. No further actions are required. 71 ------- Page Intentionally Blank 72 ------- SUPERFUND SITE COMPLETED NPL SITE PACT SHEET M & T DeUsa Landfill, Region 2 Ocean Township, New Jersey Status: Operations at the M fit T DeLisa Landfill ceased in 1974, and it was closed under New Jersey Department of Environmental Protection (NJDEP) requirements. A shopping center was subsequently built on the site and is still in operation. Although there is no significant contamination due to the release of hazardous substances which are attributable to the site, EPA recommends that environmental controls be implemented to address potential solid waste issues. The Record of Decision (ROD) for the site was signed on September 20, 1990, and states that the site should be addressed by the authorities designated to dose and monitor solid waste landfills. Current State statutes regulate post-landfill closure ground-water and surface water monitoring requirements. It is EPA's understanding that the NJDEP plans to implement and maintain environmental controls at the site to address potential problems associated with solid waste disposal. However, these measures are not necessary to mitigate any current threat of exposure to hazardous substances regulated by CERCLA. The site was deleted from the National Priorities List (NPL) in March 1991. Results and Benefits: The remedial investigation (RI) demonstrated that the landfill is not a source of significant concentrations of any hazardous substances. A conservative assessment of risk attributable to the release of hazardous substances from the landfill indicates that the current risk posed by the site is within an acceptable range. Ground- water quality in the aquifer underlying the site does not appear to have been significantly impacted by hazardous substances, and ground water in the deeper aquifer is not anticipated to be at risk as a result of past disposal practices at the site. It was determined that the landfill is not the source of detectable levels of volatile organic compounds (VOCs) in the Seaview Square Mall, located onsite. Concentrations of VOCs in the Mall are not outside the range of VOC concentrations typically found in other indoor spaces. Environmental controls were implemented during construction of the Mall to ensure protection of human health. Additional controls may be implemented by NJDEP to ensure continued protection. Background: The M&T DeLisa Landfill site is located in the southeastern corner of Monmouth County, in Ocean Township, New Jersey. The former M&T DeLisa Landfill occupied approximately 32 acres of the 132-acre site. The landfill operated from 1941 through 1974 under a NJDSP permit. There is no documented evidence that the landfill was used for disposal of hazardous wastes. The parcel currently contains the Seaview Square Mall, the Seaview Movie Theater complex, and the Acme Supermarket. Approximately 2,300 people live within a 1-mile radius of the site. Approximately 1,200 people obtain drinking water from wells within 3-miles of the site. Deal Lake is less than a mile away and is used for recreational activities. The landfill was closed in 1974 in accordance with NJDEP requirements. After closure, an 73 ------- M & T DeLisa Landfill, Region 2 (Continued) investigation of the landfill area was undertaken, and subsequently the Seaview Square Mall was constructed on 30 acres of the former landfill. Construction of the Mall was completed in 1977. An W was performed in 1984 and 1988 under EPA oversight. No feasibility study was conducted because the RI indicated that no further remediation was necessary under CERCLA. The site was listed on the National Priorities List (NPL) in September 1983; it was deleted in March 1991. Actions: Construction of the Mall was completed in 1977, and environmental controls were implemented. The area to be built on was excavated and filled in with clean soil capable of supporting the buildings. A clay barrier was placed between the underlying soil and fill material to prevent migration of landfill gas to the buildings and to act as a barrier to ground water/leachate flow. Passive barrier control vents were also constructed to prevent the migration of landfill gas. The Mall's utility corridors were constructed with all utility lines in one narrow corridor and by compacting the soil to reduce permeability. The stormwater collection system was designed to segregate stormwater and leachate. A leachate collection system was installed to intercept ground water/leachate flow towards a nearby brook which is then collected in a tank and discharged to a POTW. The surrounding parking lot acts as a low permeability cap, reducing the volume of rainwater available for leachate generation. Additional environmental controls that may be implemented to address potential solid waste issues include the following: continued monitoring of surface and ground water; modification of the deed to restrict the future use of onsite ground water; continued operation and maintenance of the existing leachate collection system; continued use and maintenance of all onsite gas vents; sealing of cracks in building floors and walls of the Mall that are in contact with subsurface soil; improvement and maintenance of the detention ponds; venting of the north corridor area of the Mall; and periodic indoor and outdoor air monitoring. 74 ------- SUPERFUND SITE COMPLETED NPL SITE PACT SHEET Monroe Township landfill. Region 2 Monroe Township, New Jersey Status: All remedial actions at the site have been completed. The site is dosed with imposed deed and land use restrictions. Ground-water monitoring will continue to ensure that environmental conditions do not change. Ownership has been transferred to the township. The site is currently a dosed landfill. Results and Benefits: As a result of the site's Superftind status, the land surrounding the site was initially lowered in value. As a result of the deanup, this land is currently undergoing rapid development. Residential areas are being built in the surrounding lots. Developers acted quickly in purchasing the land for future use as condominiums, duplexes, and single-family homes. Surface remediation goals have been achieved. Background: This 86-acre landfill operated between 1955 and 1978 before it was closed due to leachate overflowing into a nearby street. In 1979, the State obtained a court order against the present owner to halt the seepage. The leachate was found to be contaminating streams which drain from the landfill area and seep into the Englishtown and Magothy aquifers. The surrounding land use is residential and agricultural. The site was placed on the National Priorities List (NPL) in September 1983. Actions: Sampling events at the site have included soil borings and the installation of 19 ground-water monitoring wells to determine if any offsite migration is occurring. Construction of soil erosion and sediment control devices were completed in June 1991 and approved by the State to May 1992. As an Interim Remedial Measure, the leachate lagoon (onsite) was replaced with an underground storage tank system in October 1991 and is presently operational. A standby generator and a fence around the site were also installed in October 1991. Soils found to be contaminated with volatile organic compounds (VOCs) and metals were consolidated and capped onsite. 75 ------- Page Intentionally Blank 76 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Old Bethpage landfill, Region 2 Old Bethpage, Nassau County, New York Status: In April 1986, all landfill and incineration activities ceased. Current operations at the site's parent complex consist of the town's scalehouse, solid waste transfer station, recycling program, clean fill disposal site, gas collection and venting system, power generating facility, leachate collection and treatment system, ground-water treatment system, and a vehicle maintenance garage. The site itself is currently a closed landfill. Construction of the selected remedy is complete. The ground-water treatment system is expected to require 10 years of operation to meet the cleanup goals. Operation and maintenance and monitoring are required for all components of the remedial system. Results and Benefits: The selected remedy is expected to comply with the applicable or relevant and appropriate requirments (ARARs) for soil, gas, leachate, and ground water. Long-term health protection is achieved by hydraulic control of the contaminated ground-water plume to protect the downgradient public supply wells. The placement of the clay cap over the landfill serves to reduce the potential for exposure to the waste materials within the landfill and also to reduce the quantity of leachate generated. The leachate collection and treatment system controls the migration of the leachate and improves the water quality of the leachate so that it can be discharged to a publicly owned treatment work (POTW). The gas recovery system contains the migration of methane and other gases within the boundaries of the landfill. Background: The Old Bethpage Landfill site is a 72-acre inactive municipal landfill located in Old Bethpage, Town of Oyster Bay, Nassau County, Long Island, New York. It is part of the Oyster Bay Solid Waste Disposal Complex (OBSWDC), a larger sanitary landfill complex. The Town of Oyster Bay began processing and disposal of municipal waste at the site in 1957, accepting incinerator ash and residues from burning of municipal waste in two onsite incinerators, as well as garbage and trash. From 1968 through 1978, liquid and solid industrial process wastes and damaged drums containing organic residues were disposed of at the landfill After 1978, metal hydroxide sludges were the only industrial waste disposed of at the landfill. In 1979, local, State, and Federal investigations indicated that disposal of industrial waste at the facility could lead to volatile organic compound (VOC) contamination of local drinking water wells. Methane gas was also detected in the subsurface soil, onsite and offsite. The site was listed on the National Priorities List (NPL) on September 8, 1983. All landfill and incineration activities stopped in April 1986. The remedial investigation and feasibility study (RI/FS) was completed in Jury 1987. The results indicated the presence of a leachate plume containing inorganic compounds and halogenated and nonhalogenated VOCs. A residential community is located to the northwest of the landfill, and an industrial park that includes the Claremont Polychemical Corporation Superfund site is located to the 77 ------- Old Bethpage Landfill, Region 2 (Continued) northeast. Bethpage State Park is located to the south, west, and east of the landfill. The Nassau County Fireman's Training Center is located to the south of the landfill. Two public drinking water well fields are in the general vicinity of the landfill, Plainview Well field f 5 to the north and two Fanningdale wells to the south-southeast. Ground-water flow is to the south-southeast. Actions: Prior to the NPL listing, the Town of Oyster Bay had already initiated several remediation activities at the OBSWDC. A system designed to collect and treat leachate has been operating at the site since 1983. A methane gas collection system was installed in 1982 to monitor and prevent migration of gas beyond the property boundary. In 1984, an 18-inch clay cap was applied to 29 acres of the landfill. In May 1984, the Town agreed to complete and continue to operate the existing remediation systems, and to undertake the RI/FS, which was completed in 1987. The selected remedy consisted of the following major components: * Installation, operation, and maintenance of ground-water recovery wells, a ground-water treatment plant, and an effluent discharge system to collect, treat, and recharge ground water; • Capping of remaining uncapped areas of the landfill; * Enhancement of the existing leachate collection system; • Enhancement of the existing gas collection system; • Monitoring to determine the effectiveness of each remedial system component; and • Post-termination monitoring to ensure continued compliance with ARARs after shutdown of the remedial treatment systems. 78 ------- SUPERFUND SITE COMPLETED NPL SITE PACT SHEET Pomona Oaks Residential Wells, Region 2 Galloway Township, New Jersey Status: The Pomona Oaks Residential Wells site includes a residential development and a shopping center. The selected remedy specified in the Record of Decision (ROD) issued on September 26, 1990, was to take no remedial action under the Superfund program. No operation and maintenance are required at the Pomona Oaks Residential WeEs site. The contaminants in the ground water dispersed naturally over time, so no remedial action was necessary. A 5-year review is not required. Furthermore, the ground water being used by the residents of the Pomona Oaks area (from the municipal water supply) is not contaminated; there is no need to determine whether the remedy remains protective. Results and Benefits: The immediate threat to the Pomona Oaks residents was removed by the installation of the alternate water supply in 1985, and the exposure pathway was eliminated by sealing all residential wells in the subdivision. The results of the remedial investigation (RI) showed that the high concentrations of volatile organic compounds (VOCs) present in the ground water below the Pomona Oaks subdivision in the 1982 through 1985 time period significantly decreased to below drinking water standards. It has been concluded that the source of the contamination was a singular event, such as a leak or spill, and that the resultant ground-water contamination dispersed over time through natural attenuation and/or biodegradation. Background: The Pomona Oaks Residential Wells site includes a residential subdivision and an adjacent shopping center in the Pomona area of Galloway Township, in Atlantic County, New Jersey. Atlantic City is located 10 miles to the southeast. The Pomona Oaks subdivision contains about 200 single family homes built in the 1970s and has a population of approximately 800 to 1,000. Another residential area, Pinehurst, is located to the southeast of the site and has a population of approximately 1,000. The surrounding area is residential and commercial, including several shopping centers. Nearby businesses include a dry cleaner and a gas station. In June 1982, Pomona Oaks residents complained of foul tasting well water to the Atlantic County Health Department (ACHD), Sampling results showed high levels of benzene, 1,2-dichloroethane, and other VOCs that exceeded New Jersey drinking water standards. Subsequently, the entire subdivision was connected to the municipal water supply. The site was added to the National Priorities List (NPL) on June 1, 1986. Remedial investigation and feasibility study (RI/FS) field work was conducted from October 1988 to March 1989. No contaminants were found at levels exceeding New Jersey Department of Environmental Protection (NJDEP) Soil Cleanup Objectives. No migration pathway in soil has been identified for the chemicals detected at the Pomona Oaks site. Ground water is the primary pathway of contaminant migration documented at the site; 79 ------- Pomona Oaks Residential Wells, Region 2 (Continued) however, sample results from all monitoring wells were within State and Federal Drinking Water standards. Although several other VOCs have been found in the ground water of the Pinehurst area, their origin is not believed to be related to the Pomona Oaks site. Actions: All homes in the Pomona Oaks subdivision were connected to the public sewer system by 1982. In August 1985, all homes within the Pomona Oaks subdivision were connected to the municipal water supply. The existing wells were sealed and abandoned between November 1985 and January 1986. A new production well was also developed (completed in October 1987) to serve as a supplemental supply well. 80 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Ringwood Mines/Landfill, Region 2 Passaic County, New Jersey Status: The landfill was closed by the State in 1976. Since the late 1980s, the Potentially Responsible Party (PRP), Ford International Services, Inc., has conducted removal activities that have included the removal of over 8,400 cubic yards of surfieial paint sludge, contaminated soil, and buried drums containing wastes. The PRP, under EPA supervision, is conducting a monitoring program for ground water and surface water that will continue for at least 5 years and up to 30 years. Portions of the site are currently being used for residential and commercial purposes, as well as being used as a closed landfill. Results and Benefits: Cleanup activities have removed the sources of contamination to ground water and surface water and, as a result, the potential risk to human health from site-related contamination has been reduced. Soil remediation goals have been achieved. A public drinking water supply has been protected. Natural attenuation processes are expected to reduce ground-water contamination levels to levels below health- based levels. Background: The site is located in the Borough of Ringwood. The site is about 1/2-mile wide and 1 1/2-miles long and consists of forested areas, open areas overgrown with vegetation, abandoned mine shafts and surface pits, an inactive landfill, an industrial refuse disposal area, small surfieial dumps, a municipal recycling center, the Ringwood Borough garage, and approximately 50 private homes. The area around the site is primarily residential. Approximately 20 water supply wells draw water from the bedrock aquifer, which also supplies a few residences and industries in the area. Approximately 13,000 people live in Ringwood Borough. The Wanaque Reservoir provides drinking water to about 650,000 people. Iron ore mines have been operated on the 500- acre Ringwood Mines/Landfill Site as early as the 1700s. Mining ended at the site in the early 1900s, and the nature of activities at the site from then until the late 1930s is unclear. The site was purchased by the U.S. Government prior to 1940 and later was sold to a succession of owners. Wastes have been disposed at the site since the 1960s. Two abandoned mines, Peter's Mine and Cannon Mine, had been filled with garbage over the years, and Peter's Mine also contained paint sludges, solvents, and scrap metal. Several drums were observed in Cannon Mine. From 1967 until 1974, Ringwood Realty, one of the former owners, deposited waste products for Ford Motor Co., including car parts, solvents, and paint sludges, on the ground surface and in abandoned mine shafts. In 1970, Ringwood Realty began operating a permitted municipal disposal area on 290 acres in the southern portion of the site. The landfill was closed by the State in 1976 after it was determined that leachate coining from the landfill was contaminating surface water. Ground water beneath the site discharges to surface streams and the Wanaque Reservoir, G1 ------- Ringwood Mines/landfill. Region 2 (Continued) located 1/2 mile southwest of the onsite sludge disposal area. Based on the 1982 sampling of ground water taken from Peter's Mine shaft, which contained moderate amounts of volatile organic compounds (VOCs) and heavy metals, the site was listed on the National Priorities List (NPL) in 1983. Actions: From 1987 to 1990, Ford International Services, Inc., removed 8,400 yards of surflcial paint sludge containing lead and arsenic from four onsite areas and disposed of it offsite. In addition, areas potentially containing buried metal objects were identified. A total of 61 drums were discovered and subsequently disposed of offsite. Subsequent to the removal actions, sampling of site media was initiated and included: confirmatory sampling of soil, with excavation and offsite disposal of soil determined to be contaminated; and ground water, surface water, and wetlands monitoring. Backfilling of the soil was also conducted. The PRP has begun long-term ground-water and surface water monitoring that is scheduled to last a minimum of 5 years and up to 30 years. 82 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET South Brunswick Landfill, Region 2 South Brunswick Township, Middlesex County New Jersey Status: The South Brunswick Landfill was closed in December 1978 pursuant to a closure order from the New Jersey Department of Environment and Energy (NJDEPE). All work required to control the source of contamination was completed in September 1985. The site is covered with grass and entirely enclosed with a fence. An onsite leachate pretreatment system was constructed in 1993 to reduce leachate iron concentrations prior to discharge to the municipal sewerage system. Operation and maintenance of the site is under the direction of the State. Ground- water monitoring will be conducted for a period of at least 30 years and is the responsibility of the Potentially Responsible Party (PRP). Results and Benefits: The remedy is protective of human health and the environment through onsite containment of wastes. The remedy has successfully prevented direct contact with the landfill waste, prevented surface water infiltration, and mitigated leachate migration. There has been a visible improvement to the surrounding environment because of the reduced leachate flow into surrounding wetlands and surface waters. The water quality of the leachate has also been improved by pretreatment, and the integrity of the remedial action has been protected by the fence. Background: The South Brunswick Landfill site occupies approximately 68 acres and is located on New Road approximately 1/2 mile northwest of U.S. Route 1 in Middlesex County, New Jersey. The site was used for more than 20 years as a solid waste landfill, accepting municipal refuse, pesticides, chemical wastes, and hazardous wastes. The landfill was registered with the NJDEPE on August 19, 1970. princeton Disposal Service, Inc. (a predecessor to BFI of South Jersey, Inc.) purchased the property in May 1973. The site was officially closed on December 31,1978, pursuant to a closure order from NJDEPE. EPA conducted an investigation of the South Brunswick Landfill site in June 1980. Elevated levels of volatile organic compounds (VOCs) were found in the ground water and in the surface water. The site was placed on the National Priorities List (NPL) in December 1982. Most of the land surrounding the site is wooded. A private residence is located adjacent to the site; a school and a park are located directly across New Road; and a housing development has been constructed north of the site. The City of New Brunswick occasionally draws water from an intake 10 miles downstream of the site for drinking water. Ground water flows in a southeasterly direction, and the nearest public ground-water supply is approximately 1 mile north of the site. Actions: BFI of South Jersey, Inc., as the owner and operator of the landfill since 1973, was identified as Potentially Responsible Party (PRP) and has been responsible for cleanup activities. All work required to control the source of contamination was completed in September 1985, and the leachate treatment facility was completed in 1993. fi<* ------- South Brunswick Landfill, Region 2 (Continued) The remedy selected was comprised of the following activities: • Construction of a slurry wall along the site perimeter, • Construction of a multi-layer cap (clay, sand, and soil, covered with vegetation) over the entire site; • Construction of a leachate collection and treatment system designed to intercept ground water/leachate flow within the contained landfill area pump to the onsite pretreatment facility, and discharge it to the municipal sewerage system; Construction of a series of permeable gas ducts throughout the top of the main fill areas to vent any methane gas buildup within the landfill; Installation of a fence along the entire landfill perimeter to restrict the access and ensure the integrity of the remedial action; Implementation of a. post-remedial monitoring program to evaluate the effectiveness of the remedial action for 30 years and assess the impacts of offsite migration of contaminants; and Operation and maintenance to ensure the continued effectiveness of the remedial action. 84 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Suffern Village Well Field, Region 2 Town of Ramapo, New York Status: A "No Action" alternative with natural attenuation and monitoring was the remedy selected in the Record of Decision (ROD). No operation and maintenance activities are required. Only a limited monitoring program is required because the contaminant plume is attenuating, and the granular activated carbon wastewater treatment system installed by Suffern Village has virtually eliminated the possibility of exposure. Future reviews will be conducted by EPA in conjunction with the New York State Department of Environmental Conservation (NYSDEC) at least every 5 years until no hazardous substances, pollutants, or contaminants remain at the site above levels that limit use and restrict exposure. The Tempcon Corp., a small oil burner conditioning business, operates at the site. The affected wells have been shut down. Results and Benefits: The first-year ground-water monitoring program met the objectives of tracking the existing plume and acting as an early warning system for potential elevated contaminant levels at the Suffern Village wells. Monitoring results indicate that the contaminant plume is attenuating, and support the conclusions of the Suffern Aquifer Model predictions. Further, the low levels of contamination in the production wells are subsequently eliminated in the granular activated carbon wastewater treatment system installed by Suffern Village. All monitoring data indicate that the remedy selected in the ROD is protective of human health. The NYSDEC monitoring program will assure that the ROD objectives will continue to be met in the future. Background: The Suffern Village Well Field site is located in the Town of Ramapo, in Rockland County, New York, approximately 0.25 miles north of the border with New Jersey. The 30-acre site includes a municipal water supply well field operated by the Village of Suffern, and the Tempcon Corp. facility approximately 2,500 feet from the well field which was the source of the contamination. The site is approximately 2,500 feet north of the confluence of the Ramapo and Mahwah Rivers and lies in a flood area. The Village operates four production wells that supply water to a population of approximately 12,000 people. Contamination of the well field was first detected in tap water collected from the municipal distribution system in September 1978. Subsequent monitoring confirmed that ground water had become contaminated with TCEA, a volatile organic compound (VOC) with several industrial uses. Three village wells had TCEA levels above the State guideline; the wells were shut down in December 1978. Water supply demand was met by the remaining well with levels below the guideline. Tempcon Corp. is a small oil burner reconditioning business. In December 1978, the Rockland County Department of Health (RCDOH) tentatively identified Tempcon Corp. as a user of TCEA- based solvents and a potentially responsible party (PRP). Tempcon disposed TCEA into a pit on its property. The site was placed on the National Priorities List (NPL) on June 1, 1986. The remedial investigation and feasibility study (RI/FS) were performed by NYSDEC from April 1986 through ------- Suffern Village Well Field, Region 2 (Continued) August 1987. The only pathway found to be of concern was ground water, bearing TCEA and degradation products, migrating southward from Tempcon Corp. and the E-well location. The ROD was issued on September 25, 1987, with a "No Action" alternative selected based on the conclusion that contaminant levels were naturally attenuating and that the Suffern Aquifer Model predicted continued decreases in contaminant levels down to 1 ppb within 10 years and below 5 ppb within 4 years. A monitoring program was developed to verify the predicted results of the model. Monitoring showed widespread distribution of chlorinated VOCs throughout the study area, but contaminant concentrations were generally very low. Most VOC concentrations have dropped since the RI/FS. Actions: Several actions were implemented as a result of the contamination of the well field. In 1979, the contaminated soil was excavated, aerated, and then backfilled. The State guidelines were decreased for TCEA, so the Village of Suffern was required to upgrade its existing treatment system to meet the new standards. A granular activated carbon adsorption unit and an activated carbon adsorption unit were added to the system. Levels of TCEA have not exceeded the limit of 5 ppb since the spring of 1990 when the system began operating. Consequently, the scope of the monitoring program was reduced by the NYSDEC. 86 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Tabernacle Drum Dump, Region 2 Burlington County, New Jersey Status: Construction for this site has been completed. Responsible parties will conduct ground-water treatment under a Judicial Consent Decree. The site is currently vacant. Benefits and Results: Chemicals illegally dumped on a privately owned lot near an Agricultural Preservation District have been removed. Surface removal has been completed, removing the threat posed by direct exposure. A ground-water treatment system currently under design will safeguard water used for agriculture. Background: The 1-acre site is located within an area designated as the Pinelands Agricultural Production Area, a national reserve operated jointly by State and Federal agencies for agricultural purposes. Residential use is restricted. The area's primary crops are cranberries and blueberries. Between 1977 and 1982, drums filled with chemicals including volatile organic compounds (VOCs) and polychlorinated biphenyls (PCBs) were illegally dumped on this privately owned lot. Many of the containers were severely corroded and leaked their contents. State and county regulators found about 200 hazardous waste containers and visible soil contamination. In 1984, through an Administrative Consent Order, the responsible parties conducted a surface cleanup of the site, removing surface soil and containers. The site was placed on the National Priorities List (NPL) in September 1984. Actions: In 1985, EPA initiated a remedial investigation/ feasibility study (Rl/FS). The RI/FS was completed in June 1988. The Record of Decision (ROD) required treatment of the contaminated ground water by air stripping and other appropriate technologies to meet Federal and State requirements. A Judicial Consent Decree to finance, design, construct, operate, and maintain this selected alternative was signed in September 1989 by the United States Department of Justice. Currently, air strippers are on-line treating the ground water. The presence of the adjacent Pinelands Agricultural Area affects the required cleanup levels and places additional constraints on the treatment alternative. ------- Page Intentionally Blank 88 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Tronic Plating Co., Region 2 Farmingdale, Suffolk County, New York Status: Construction is complete, and "No Further Action" is required at the site. Sediment and soil removal activities were carried out in 1993 by the Potentially Responsible Party (PRP), Commerce Holding Company, Inc., under EPA's supervision. Confirmatory sampling showed that contaminant concentrations were reduced to an acceptable level. No additional monitoring or 5-year review is required, because no hazardous substances remain at the site above health-based levels. A portion of the site is now used for warehouse and eye lens manufacturing purposes. Results and Benefits: The onsite sources of contamination have been cleaned up, thereby reducing the potential risk to human health and the environment. The removal of contaminated sediments and soils reduced the already low threat of exposure through ingestion and dermal contact. The removal activities have resulted in the removal of cadmium and other metals from the contaminated onsite storm drains, sanitary leaching pool, and drywell, addressing the localized plume of cadmium in the ground water. This action also achieved the removal of lead and chromium and any other potential ground- water contaminants from the Tronic Plating site. Background: The Tronic Plating Co. site is located in a commercially developed area of Farmingdale, in the Town of Babylon, Suffolk County, Long Island, New York. The National Priorities List (NPL) site is approximately 1/2 acre of a 2 1/2- acre lot, and includes the southeast comer of a building owned by Commerce Holding Company, Inc. Tronic Plating Co. operated at this location from 1968 to 1984, providing electroplating and metal protective coating services for the electronics industry. The facility was serviced by four industrial leaching pools, one sanitary leaching pool, and one drywell (a former sanitary leaching pool that was disconnected from the building). Three onsite storm drains and two overflow drains are located in the driveway adjacent to the building and the front lawn. During its operation, the facility discharged industrial wastes into the sanitary leaching pool, the four underground leaching pools, and allegedly into the storm drains. New York State issued a Pollutant Discharge Elimination System Permit to Tronic Plating in 1980. In November 1983, the facility pumped out the contents of the industrial teaching pools, cleaned and backfilled them in preparation for moving out of the building, and.connected the building to the Suffolk County municipal water supply, to 1984, Tronic relocated its operations to Nassau County, In 1984, NYSDEC conducted a preliminary inspection of the Tronic Plating Co. site. Tests conducted by the New York Department of Health (NYSDOH) in 1985 detected heavy metals including copper, silver, iron, zinc, lead, chromium, and cadmium in the leaching pools and the storm drain. The site was placed on EPA's NPL for Superfund cleanup on June 10, 1986. The building space where Tronic Plating Co. formerly operated is now occupied by three small companies. Light industrial businesses ------- Tronic Plating Co., Region 2 (Continued) surround the site to the north, west, and northeast, while the Piiielawn Cemetery is located to the south and southeast. Most local industries discharge their wastewater to ground- water infiltration systems, thereby impacting the ground-water quality of the area. Ground water supplies the water needs of the entire population of Suffolk County, about 16,000 people in the area use ground water as their sole source of drinking water. The nearest municipal well field is located partially downgradient at 0.9 miles southwest of the site, and another municipal supply well is located 2.4 miles south (downgradient) of the site. Private wells exist in the site vicinity; most are used for irrigation or for process and cooling water. The nearest private well used for drinking water services an office at the St. Charles Cemetery partially downgradient at 0.9 miles south-southwest of the site. The population within a 1-mile radius of the site is estimated to be about 1,800 people. The closest residences are located approximately 1,000 feet east of the site. An industrial school is located 3/4 mile northeast of the site. Actions: Phase I and Phase II investigations were conducted at the site between 1989 and 1992 and showed elevated levels of volatile organic compounds (VOCs) and metals. Based on these investigations, sediment and soil from contaminated areas (onsite storm drains, sanitary leaching pool and drywell) were removed. The drywell was also excavated, and stormwater was removed. A total of 230 cubic yards of contaminated soil were removed from the site and shipped to hazardous waste landfills. This work was required by an Administrative Order of Consent that was carried out by Commerce Holding Company, Inc. under EPA supervision. Field work began on July 22, 1993, and was completed on August 13, 1993. A 5-year review is not required for the Tronic Plating Co. site because subsequent sampling confirmed that no hazardous substances remain at the site above health- based levels. EPA has determined that its response at this site is complete. 90 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Upper Deerfield Township Sanitary Landfill, Region 2 Cumberland County, New Jersey Status: Residential use of wells in the vicinity of the site has been discontinued. Residents have been connected to a public water supply system. It was determined that no further remedial action was required at the Upper Deerfield site. Because ground-water contamination did, however, exist in the vicinity of the Upper Deerfield Township Sanitary Landfill, and because low levels of hazardous waste will remain on site, continued sampling is necessary to monitor the overall air and ground-water quality in the area. The site is currently an inactive landfill. Results and Benefits: In 1986, in response to the ground-water contamination problem, the residents of Upper Deerfield Township were connected to a public water supply system, thus removing any immediate health risk to the residents posed by the ground water. Data obtained during the remedial investigation have shown that the ground-water and soil contamination associated with the Upper Deerfield Township site no longer poses a health threat under current or likely future land use conditions. Consequently, no additional action is required pursuant to the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), as amended, and the National Oil and Hazardous Substances Pollution Contingency Plan (NCP). Background: The Upper Deerfield Township Sanitary Landfill site is an inactive landfill covering 14 acres on a 23-acre tract of land. The site originally was used as a gravel pit from 1938 to 1960, when the Township purchased 12 acres; the remaining acreage was purchased by the Township in 1977. The property was operated as a municipal landfill licensed to accept normal household waste until it closed in 1983. In 1980, residents became concerned over the quality of their water and, in response to requirements by the New Jersey Department of Environmental Protection and Energy, the Township installed three monitoring wells. The County sampled residential wells and the monitoring wells and found them to be contaminated with mercury and volatile organic compounds (VOCs). In 1983, the State and the County advised residents to discontinue using their wells, and the Township began supplying he affected residents with bottled water. In 1986, utilizing funds provided by the State of New Jersey, the Township installed a public water supply well and distribution system to provide potable water to residents in the area. Approximately 100 people live within a mile of the site, and the nearest residence is about 100 feet away. Upper Deerfield Township has a population of approximately 6,800 people. Monitoring will continue at the site. Actions: In January 1980, in response to compaints about water quality from residents using private ground-water wells, the Township installed three monitoring wells at the landfill. In December 1983, Upper Deerfield Township began supplying affected residents with bottled water. In 1986, utilizing funds provided by the State of New Jersey, the Township installed a public Q1 ------- Upper Deerfield Township Sanitary Landfill. Region 2 (Continued) water supply well and distribution system to provide potable water to residents in the area. 92 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Vineland State School, Region 2 Vineland, New Jersey Status: The New Jersey Department of Environmental Protection (NJDEP) performed several remedial activities at the Vineland State School site in 1988, including removal of polychlorinated biphenyl (PCB) contaminated soil, capping the area, and installing a fence. The selected remedy for the site was to take no further action under the Superfund program, as specified in the Record of Decision (ROD) issued in September 1989. Because sporadic low levels of subsurface soil contamination exist at the site, a program to monitor ground water at the former disposal areas was implemented, and measures have been taken to ensure that the soils will not be disturbed. A review will be performed within 5 years to evaluate the selected remedy. The State of New Jersey is responsible for maintenance of the cap and fence. The school facility still operates at the site. Results and Benefits: Actions taken by the NJDEP reduced the levels of PCB contamination at one subsite, the asphalt cap has reduced the .threat from soil contact, and the fence protects the integrity of the cap. Investigation of the other four subsites failed to detect any significant contamination. Ground water is currently not contaminated by site- related substances and is not expected to be contaminated in the future; however, a public water suppty was extended to service homes in the vicinity of the site. A program to monitor ground water and the existing disposal areas has been implemented and a 5-year review will be conducted to ensure that the selected remedy remains protective. Background: The "Vineland State School, now known as the Vineland Developmental Center (VDC), is a treatment facility for mentally handicapped women operated by the New Jersey Department of Human Services. The school, located on 195 acres, has been in operation since the late 1800s. Approximately 1,300 residents are enrolled. Investigations by the NJDEP, EPA, and the City of Vineland began in March 1980 after employee allegations of improper disposal of hazardous materials. Five distinct subsites were investigated, based on the allegations. Two subsites were known landfill areas, two others were alleged chemical waste disposal areas, and the final subsite was the location of a transformer spill. Only subsite 2, the transformer spill, was found to be contaminated to any significant degree. Drinking water came from two weEs on VDC property up until 1970 when the facility began to receive water from the City of Vineland. The site was added to the National Priorities List (NPL) in September 1983. The remedial investigation/feasibility study (RI/ PS) report was completed and released on September 8,1989. Extensive investigations were conducted at five subsites of the school Surface soils contained background levels of pesticides, chromium, and mercury, and sporadic elevated levels of PAHs and lead. Subsite 1 consisted of a landfill that accepted waste from the 1920s to the late 1950s and an unregulated incinerator. Low levels of mercury were found in residential wells near subsite 1. RI sampling and subsequent investigations yielded results for ground water and soil at levels below Federal and State ------- Vineland State School, Region 2 (Continued) Drinking Water Standards and soil samples below the interim New Jersey Soil Action Levels. Subsite 2 was a storage area for three electrical transformers that were removed in the mid- 1970s. During removal, a spill of PCB- containing transformer fluid occurred, and subsequently, it was spread over a 1-acre area by natural processes and routine activities. Subsite 3 was used by the school as a garbage dump for ten years, up until 1963, at which time the area was backfilled and an athletic field was built on the site. Subsite 4 is a former gravel extraction area that was also used as a New Jersey Department of Transportation maintenance yard. It was not found to contain significant levels of any contaminants. Subsite 5 is an open field previously used for agricultural purposes. Allegations of illegal dumping of pesticides at subsite 5 were not confirmed; there was no need to restrict access to this subsite. Actions: Subsite 2, the transformer spill area, was cleaned up by NJDEP in 1988. The cleanup included the removal of nearly 4,000 tons of PCB-contaminated soil. Soil contaminated with PCBs at levels above 5 ppm, was removed to a hazardous waste landfill, and remaining soil, at levels between 1 and 5 ppm, was covered with an asphalt cap. Fencing was installed around this area as a security measure. Low levels of mercury were found in residential wells near subsite 1, and all affected homes were connected to the public water service by 1984; however, subsequent sampling showed acceptable levels. The landfills at subsites 1 and 3 were closed with a foot of soil and vegetated. Subsite 4, a former gravel pit, did not contain significant levels of any contaminants, so no actions, operation, or maintenance are required. There was no need to restrict access to this subsite because illegal dumping of pesticides at subsite 5 was not confirmed. 94 ------- Su UND SITE COMPLETED NPL SITE FACT SHEET Wide Beach Development, Region 2 Erie County, New York Status: As a result of remedial action, threats posed by widespread polychlorinated biphenyl (PCB) contamination in the small Wide Beach community have been mitigated. The site is being used as a residential community. Results and Benefits: An innovative treatment technology successfully reduced residual PCB levels in excavated soils to target levels. Homes and vacation properties in the area have returned to normal market value. The aggregated market value of 22 owner- occupied homes at Wide Beach is now estimated at more than $1.3 million. Additional benefits that enhance property values in the community include newly paved roads and driveways, re- landscaped yards, and a new sewer system. Background: Located in what was once a popular vacation spot, the 55-acre Wide Beach Development in Brant, New York, is now a small lake-side community where only 60 homes are occupied on a year-round basis. Environmental problems for the area began in 1968 when waste oil was applied to dirt roads as a means of dust control. Not knowing that the oil sometimes contained PCBs, the community continued this practice for nearly 10 years. Consequently, simple acts such as driving or walking along a roadway brought the contamination into private yards and homes. The contamination was spread even more when residents used soils excavated from roadsides during the installation of a new sewer line as fill for their yards and other areas throughout the community. High levels of PCBs were present in the air, road dust, homes, and cars. Fortunately, only trace levels of PCBs were found in water samples taken from private wells. The adverse health effects resulting from PCB exposures can range from skin rash to severe illnesses involving liver damage and central nervous system disorders. Action: As an emergency action, the EPA provided temporary pavements to the contaminated roadways and driveways; decontaminated homes by vacuuming, rug shampooing, and replacing air-conditioning and furnace filters; installed filters on individual drinking water wells; and repaired a storm drain to alleviate flooding problems. For the long-term remedial scheme, EPA elected to treat the contaminated soil using an innovative treatment technology, the anaerobic thermal process (ATP), that was originally developed for application in recovering crude oil from tar sands and oil shales. Results from a pilot study showed that PCB concentrations in soils treated by ATP were reduced from more than 1,000 parts per million (ppm) to less than 10 ppm. For the Wide Beach cleanup, the temporary pavements were removed, and the underlying soils, including soil in private yards, were excavated and treated using the ATP. Soils were then returned to their previous location. ------- Wide Beach Development, Region 2 (Continued) ATP is well-suited to treatment of PCB- contaminated soils. The soil is initially heated to evaporate moisture and light, oily materials. Then, in an oxygen-free zone, the soil is exposed to very high temperatures (approximately 950 to 1150°F). Under these conditions, heavy oils and PCBs are vaporized, allowing these organic contaminants to separate from the soil particles. The contaminant stream is recovered and condensed. The concentrated PCBs can then be chemically destroyed. Although EPA developed and distributed fact sheets and held several public meetings to keep the community abreast of ongoing activities and to explain the technical aspects of the selected plan, some residents remained concerned over possible exposures from disturbed areas. To these citizens and to the residents whose homes were rendered inaccessible because of the excavations, EPA offered the option of temporary relocation. The innovative ATP treatment technology was successful in lowering the PCB levels to less than 2 ppm. The technology was thorough, fast, and cost-effective. Approximately 40,000 tons of contaminated soil were treated from September 1990 to September 1991. In addition, the innovative approach resulted in a permanent solution which did not necessitate containment or the transfer of hazardous waste from one location to another. 96 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Wilson Farm, Region 2 Plumsted Township, New Jersey Status: The removal action has effectively eliminated the source of contamination at the site. As a result, the New Jersey Department of Environmental Protection and Energy (NJDEPE) has determined that no further remedial action is necessary at the site. However, because contaminants were detected in the ground water, surface water, and sediments, a limited monitoring program wiE be implemented. Results and Benefits: Human health has been protected by the removal of chemical and industrial waste materials from the Wilson Farm site. Results of the quantitative risk assessment using the Hazard index approach show that the site media currently do not pose any significant noncardnogenic risk to human health. Under current conditions the site media do not pose any significant, carcinogenic risk to human health. Based on ecological risk assessments, site-related contaminants should have no significant impact on plant of animal species on and around the site. Background: The 438-acre Wilson Farm site is one of seven similar "Plumsted" sites located within 20 square miles of Plumsted Township. Four of these sites are listed on the National Priorities List (NPL). Through an agreement with the site owner, Thiokol Chemical Company allegedly disposed of bulk liquid and drummed wastes on 10 acres of this site. The wastes were dumped on the surface in the late 1960s and early 1970s; there is no evidence of buried materials. Inorganic chemicals were found in drinking wells near the site in 1987. The site is not fenced or posted, and there is evidence that the area is used for hunting and recreation. Approximately 1,900 people live within a 3-mile radius of the site, and 300 people live within a mile. The residents rely on private wells for drinking supplies. The closest drinking water well sampled was approximately 1,500 feet from the site. Actions: The previous remediation activity at the Wilson Farm included the removal of drums and the excavation and removal of sludge, solid wastes, and contaminated soil have reduced the potential for exposure to contaminants at the WJlson Farm site while further studies of site contamination were taking place. The major components of the no action remedy are: implementation of a 5-year monitoring program involving ground water, surface water and sediments to verify that any residual contamination remains below levels of concern. 97 ------- Page Intentionally Blank 98 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Witco Chemical Corporation, Region 2 Oakland, New Jersey Status: EPA has determined that no further remedial action is necessary to ensure protection of human health and the environment at the Witco Chemical Corporation site in Oakland, New Jersey, "flic removal of contaminated soil and sludge in 1987 and 1988 appears to have been effective in remediating the principal threats associated with the site. The risk assessment also shows that risks posed by the site are within EPA's acceptable range and are expected to remain so. However, because sporadic ground- water contamination has been detected, a limited ground-water monitoring program will be implemented to ensure that this no remedial action decision continues to be protective of human health and the environment. The site now qualifies for Inclusion in the "sites awaiting deletion* subcategory of the "construction completion* category of the National Priorities List (NPL). The site does not contain hazardous substances above health-based levels, so the 5- year review does not apply. Witco still operates a technical research facility at the site. Results and Benefits: Monitoring of the Oakland Public Water Supply System has shown no evidence of site-related contaminants. The pathway with the highest risk potential is residential ingestion of ground water from the upper aquifer; however, the risk associated with each of the pathways falls within or below the acceptable range. No adverse health impacts would be expected from migration based on the current industrial use of the site. Samples from Hopper Lake showed no significant levels of contamination. Based on the ecological risk assessment performed for the site, site-related contaminants should have no significant impact on the plant and animal species on and around the site. Thus, the removal actions conducted at the site removed the source of contamination and reduced contaminants to levels that are within the acceptable risk range. Monitoring has ensured that levels remain protective of human health and the environment. Background: The Witco Chemical site is a 9-acre site located in the McBride Industrial Park in Oakland, in western Bergen County, New Jersey. Witco Chemical Corporation has owned and operated a technical research facility for the development of specialty chemicals at this location from 1966 through the present. The property is bordered by Hopper Lake and a housing development. The Borough of Oakland has a population of approximately 13,000 people; 5,000 people live within 1 mile of the site. With the exception of one residential weE, the area downgradient from the site is supplied by a municipal water supply system. A large portion of the site is a building and a parking lot; therefore, the site does not provide high-quality habitat for wildlife. A freshwater wetland is located near the site. Until 1984, the company neutralized laboratory waste water in a 2,000 gallon underground acid neutralizing tank, and then discharged it to a series of underground seepage pits. In March 1982, the New Jersey Department of Environmental Protection and Energy (NJDEPE) performed an inspection at the facility for compliance with the New Jersey Water Pollution ------- Witco Chemical Corporation, Region 2 (Continued) Control Act. In April 1982, NJDEPE issued a directive requiring that Witco take measures to cease the unpermitted discharge of industrial waste waters to ground water at the site. In July 1982, NJDEPE further directed Witco to submit a plan for the elimination of the discharge of industrial waste waters into ground water and to study possible soil and ground water contamination at the site. Further sampling and ground-water monitoring in November 1982 revealed that the ground water, soil, and sludge were contaminated with petroleum hydrocarbons and various organic compounds. An EPA investigation of the site was conducted in August 1985, detecting 2- butanone, dieldrin, 4,4'-DDE, 4,4'-DDT, and benzo(a)pyrene. The site was placed on the NPL in September 1989. The remedial investigation was conducted from August 1990 through the spring of 1992. Actions: In February 1984, Witco replaced its underground seepage pit system with a 6,000 gallon capacity fiberglass tank. This tank is now used for accumulation of laboratory waste waters prior to offsite disposal. Remedial activities were conducted at the site from November 1987 through January 1988 and included excavation and disposal of approximately 720 cubic yards of contaminated soils, removal of sludge and seepage tanks, and offsite disposal of fourteen 55-gallon drums of sludge. These actions were performed voluntarily by Witco and reduced contaminants to levels within the acceptable risk range. 100 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Andor Chemical Corporation, Region 2 Bradford, New York Status: This emergency removal action was completed in 1990. The site is currently inactive and vacant. Within the past year, inquiries have been to purchase the property for reuse. None of these inquiries, however, has resulted in the sate of the property, possibly due to the presence of friable asbestos that remains on the site. Results and Benefits: As a result of the prompt removal action, over 12,000 containers that included hazardous materials were disposed of, removing the threat of fire and/or explosion from the community. Background: Andor Chemical Corp. was a mail-order chemical supply company that operated out of a three-story former school building in the rural town of Bradford, New York. The population within 1 mile is approximately 500 people, with the nearest residence within 100 feet. The former school structure is in poor structural condition with little or no electricity, water, heat, or fire prevention devices. The owner/operator lived in a basement classroom while the business operated. In excess of 2,000 different chemicals are known to have been stored haphazardly onsite. These chemicals included flammable solvents, highly unstable acids, and phosphorus. Additionally, the building contains disintegrating asbestos fiber which, in case of fire, would be released into the environment. In 1985, during an inspection by the State, two spills of an unknown material were seen running into a drain within the building. In December 1987, material picked up from Andor Chemical by a trash hauler began to smoke. The material was placed in an overpack drum and taken away for proper analysis and disposal under the supervision of the State. In 1989, two samples from the drum were classified as hazardous. Because the residents were worried, several town meetings were held to discuss the dangers they felt were associated with the site. In late 1989, as a result of meetings and general concern, an emergency plan was introduced by the local officials. The essence of this plan was that if the building caught fire, the town would be evacuated and the structure would be left to bum to the ground. Actions: EPA became involved in 1990 at the request of town, county, and State officials. An inspection by EPA prompted a swift emergency removal action. The business was ordered closed by a Federal Judge, who ruled that the operation posed a threat to the environment and to the Bradford community, and the chemicals were removed offsite. A portion of the usable and stable chemicals were donated to local industries and institutions, while some were disposed of in an approved facility or safely detonated. Within 48 hours of the announcement that this site posed an immediate threat to the safety of the town and the environment, cleanup began. The soil, septic system, and nearby wells were tested, but none showed contamination. The entire removal activity took approximately 3 months. ------- Andor Chemical Corporation, Region 2 (Continued) The Town of Bradford enacted regulations that would ban the storage, repackaging, recycling, and receiving of bulk chemicals within the town. These regulations were passed in an effort to prevent the facility from reopening. 102 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Arkansas Chemical, Region 2 Newark, New Jersey Status: Removal activities have been completed. The site has changed ownership, and the building onsite has been made suitable for occupancy. Results and Benefits: The fire threat to the community and the threat of neighborhood exposures to potentially hazardous combustion products have been removed. Flooded areas have been dried out, and the industrial property has been returned to marketable condition. Several interested parties have bid on the property. EPA negotiated an agreement with the City of Newark that would transfer funds generated by the sale of Arkansas Chemical property back to EPA. The value of the property is estimated at over $2 million. Background: After several fires had occurred on the site of an abandoned textile manufacturing facility, it became obvious to EPA that actions must be taken before something more serious happened. This was especially urgent because the area was readily accessible to the public, as evidenced by the graffiti and vandalism. The site is located in an active industrial park in a densely populated area of Newark and is within 200 yards of the intersection of two major interstate highways, one of which is the heavily traveled New Jersey Turnpike. EPA's assessment of the situation indicated that several thousand drums and bags of miscellaneous chemicals were unsecured and that the flooded building basements contained a mixture of contaminated runoff and dissolved chemicals. Additionally, loose asbestos from earlier plant installations was found along with several unidentified compressed gas cylinders. Actions: EPA immediately secured the site, quickly minimizing the most severe risks of public exposure to the solvents and materials, and preventing future vandalism. Subsequently, the assorted drums and bags of materials and the radioactive materials that were discovered were disposed of offsite. The basements were pumped and the effluent was treated and disposed of. In all, over 20,000 drums, containers, and bags of hazardous waste were removed from the site. Also removed were over 100 cubic yards of asbestos, 5 unknown compressed gas cylinders, 15,000 gallons of contaminated liquid, and several radioactive ampules. Reference books and laboratory glassware found onsite were donated to the Newark Board of Education. ------- Page Intentionally Blank 104 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Atlantic Resources Corporation, Region 2 Middlesex County, New Jersey Status: The site has been Inactive and unoccupied since the owners of Atlantic Resources Corporation filed for bankruptcy in 1985. The entire site is fenced, and all removal actions were completed on July 28, 1988. Remedial actions will continue at this site in conjunction with the adjacent Horseshoe Road Superfund site. Results and Benefits: By eliminating the potential sources of contact and securing the site from acts of vandalism, EPA has protected the surrounding population from accidental contact with hazardous materials and lessened the threat of a fire and/ or explosion causing a release of chemicals to the environment. Chronic releases of oily substances from the facility have been stopped, thus sparing ground-water and surface water resources. Background: The abandoned facility is on 4.8 acres in a remote industrial area approximately 300 feet southeast of the Raritan River. The facility was used for various industrial operations including solvent reclamation, hazardous waste incineration, and precious metals recovery. The site is adjacent to three other abandoned Superfund hazardous waste sites: Atlantic Development Corporation, the Sayerville Pesticide Dump, and the Horseshoe Road Dump. At least 40 homes are within a 1-mile radius, and several hundred are within a 2-mile radius. All homes and businesses in the area are on public water supply. The northwest edge of the facility borders a marsh that leads to the Raritan River. A drainage ditch originating on the facility bisects the marsh and flows directly to the river. Before and after the facility was abandoned, there was a chronic discharge of waste oil into the Raritan River. In August 1985, the State began maintaining sorbent padding in the drainage ditch to minimize the environmental impact of surface runoff. In addition to the oil discharge, a substantial threat of chemical release existed from chemical storage areas on the site. Some of these areas included an outdoor open vat of acid, five 30-gallon drums of 98 percent sodium cyanide, 65 containers of laboratory reagent chemicals, 8 incinerators, 1,700 pounds of zinc powder, and approximately 300 containers of unknown chemicals. During the winter of 1986, mercury spiEs were observed at two locations at the facility. Investigators estimated that approximately 70 pounds of mercury had been released. The State also conducted a study that found elevated levels of dioxin contamination in soil. Prior to the commencement of removal activities at the site, EPA was called in to provide technical support and guidance. The most immediate concern was direct exposure of hazardous substances to humans. The facility exhibited many signs of human entry true ------- Atlantic Resources Corporation, Region 2 (Continued) and trespass. Food containers were observed in office sections of the building, most of the windows to the building were broken, and flies were scattered over floors and desks. Because drums and other containers of hazardous and potentially hazardous materials were located throughout the building and facility yard, trespassers could easily come in contact with these agents. A fire or explosion at the facility could have triggered significant airborne exposure and contamination to businesses and residents located downwind from the site. Actions: During late July 1987, while EPA finished sampling and analysis procedures, an elastomer substance and the surrounding soil were excavated from the southern perimeter of the site, 15 cylinders were transported offsite for treatment/disposal, and additional sample volumes were collected where required. All samples were analyzed for peroxides, oxidizers, air/water reactivity, and cyanides. Disposal coordination began by January 1988. Special measures had to be taken when handling the drums due to sub-freezing weather. At this time, over 16 different wastestreams had been identified. Sodium cyanide was separated from other "unknown" cyanides. The contents of the thawed drums were consolidated into their respective wastestreams. The unknown cyanides group was sent for analysis to determine possible mercury contamination. In addition, acids were bulked, base neutral solids were bulked into 30 cubic yard roll-offs, drums were overpacked as necessary, and materials were sent to approved offsite disposal facilities for treatment/disposal. During these activities, the EPA On-Scene Coordinator (OSC) coordinated with numerous EPA branches. These groups assisted the OSC with public relations, legal matters, coordination of removal activities with future remediation, and determination of the RCRA compliance status of potential offsite disposal facilities. By close interaction between the different EPA branches, the OSC was able to effectively reduce the threat of fire and/or explosion, and expedited the removal of hazardous and potentially hazardous materials from the site. Continued remedial actions at this site will be performed in conjunction with activities at the adjacent National Priorities List (NPL) sites. These include waste characterization, ground- water sampling, and treatability studies. 106 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Forest Glen, Region 2 Niagara Falls, New York Status: Removal activities and resident relocation have been completed. Long-term remedial actions are expected to follow at this site. Site access will be restricted until a sufficient level of cleanup is achieved. Results and Benefits: Approximately 150 people living in the Forest Glen subdivision were potentially at risk due to the presence of cancer-causing chemical wastes buried in the soil. While EPA gathered and analyzed data for the site, potential exposure to residents was minimized by temporarily relocating families and busing the children offsite, 8 hours a day, 5 days a week, to area camps and daycare facilities. The Federal Emergency Management Agency (FEMA) offered residents competitive settlements to permanently relocate, starting in June 1990. The relocation was complete in December 1992, eliminating further exposure. Background: Beginning in the 1950s, this formerly wooded wetlands area was used for waste disposal. In the eariy 1960s, the area was cleared and a creek was rerouted. Disposal activities continued during the 1960s and early 1970s. In 1973, the property was subdivided and developed into 51 mobile home properties and two permanent residences. The neighborhood population grew to 150 people, with other residential and industrial areas becoming established nearby. In June 1980, the Niagara County Health Department responded to a complaint concerning the presence of drum tops and resinous material on one residence at the site. Sewer and water line workers had also encountered resinous and powder-like waste, drums, and batteries when working in the area. Actions: Results of an EPA site investigation were sent to the Agency for Toxic Substances and Disease Registry, which concluded in July 1989 that the site was a significant health threat because of the cancer-causing chemicals found beneath it. The site was placed on the National Priorities List (NPL) on November 15, 1989. Residents were urged to relocate temporarily. After further site contaminant analysis, FEMA began offering comparable housing to residents to relocate permanently. To minimize exposure to the contaminated areas, EPA undertook an innovative response at the site. Over the course of a year and a half, older Forest Glen children, when not in school, were bused away from the site to participate in various day camps and younger children were taken to daycare facilities. Fifty-one trailers and two permanent homes have been purchased by FEMA to ensure that the residents are not exposed to carcinogenic chemicals found in and around these homes during the remedial activities that will follow. A chain-link fence was completed in early September 1993 that limits the possibility of accidental contact with contaminated materials. ------- Page Intentionally Blank 1O8 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Franklin Burn Sites, Region 2 Gloucester County, New Jersey Status: All tiine-critical removal measures have been completed as of June 1993. The Franklin Bum sites are currently under consideration for inclusion on the National Priorities List (NPL). Results and Benefits: Removal activities have succeeded in mitigating the threat to pubEc health posed by the potential for contact with hazardous substances located at the sites. In addition, removal and offsite disposal of contaminated ash and soil have eliminated the potential for further migration of contaminants into the environment. Removal activities were coordinated with the EPA Remedial Program as part of the Superfund Accelerated Cleanup Model (SACM). Background: The Franklin Burn sites include seven separate sites, all located in Franklin Township, New Jersey. The sites were used for illegal burning of insulated electrical wire and electrical components, possibly including transformers and capacitors, for the recovery and sale of copper. The burning operation, which occurred in the late 1970s through the 1980s, resulted in the generation of ash piles containing hazardous substances at each site. Hazardous substances identified include heavy metals (lead, zinc, and copper), polychlorinated biphenyls (PCBs), dioxins, and furans. The sites are located within an area of approximately 1 square mile. Of the seven sites, three are located adjacent to private residences. The remaining sites are located in undeveloped nonresidential areas, but are easily accessible by the public. EPA determined that the seven sites presented a threat to public health and the environment due to the nature of the contamination, the proximity of the sites to residential dwellings, and the potential for migration of the waste into the ground water and sensitive wetlands areas. To mitigate the threats, time-critical removal actions were implemented at each site. Actions: Actions conducted during the time-critical phase of the project included securing and stabilizing each of the seven sites to prevent direct contact with hazardous substances and to minimize the potential for offsite migration of contaminants. These tasks were accomplished through the excavation and offsite disposal of contaminated soil or through consolidation, stockpiling, and covering of wastes onsite. Approximately 4,000 cubic yards of contaminated soil/ash were transported for disposal from Franklin Bum sites 4, 5, 6, and 7. At Franklin Burn sites 1, 2, and 3, approximately 5,500 cubic yards of contaminated soil were excavated, stockpEed, and covered pending further investigation. Included in this action were the collection and laboratory analysis of more than 5,000 soil samples. The results of the sample analysis were used to identify pre- and post-cleanup conditions. The time-critical removal actions at the seven sites were completed, including 10Q ------- Franklin Bum Sites, Region 2 (Continued) restoration of four of the sites in less than 8 activities. These investigations will include the months. characterization of the stockpiled contaminated soil/ash, ground-water, and surface water The site is under consideration for inclusion on quality. Treatment and/or disposal of the theNPL. EPA is currently further characterizing material will be performed following site conditions that have not been fully characterization and development of investigated as part of the time- critical removal alternatives. HO ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Friendship Drive Site, Region 2 Brookhaven, New York Status: This removal action was completed on February 28, 1989. The Suffolk County Department of Health Services (SCDHS) continues to monitor wells in adjacent areas for possible contamination, Benefits and Results: The threats posed by carcinogenic chemicals found in over 100 private wells were abated through this removal action. Exposure pathways include ingestion and inhalation. Background: The Friendship Drive ground-water contamination site is located in the Rocky Point section of the Town of Brookhaven, Suffolk County, New York. The area is largely suburban/residential and is boarded by the Long Island Sound to the north. The area was not serviced by either a public or private water supply system. From January through September 1986, the SCDHS sampled approximately 396 private wells. The sampling indicated chemical contamination of 206 wells, 21 of these exceeding EPA's 10-day health advisory level of 175 parts per billion (ppb) of tetrachloroethylene and an additional 23 wells exceeding the New York State Department of Health potable water guidelines of 100 ppb of total organic compounds. The primary contaminant found was tetrachloroethylene, but the source of contamination was not known at the time of original sampling. Actions: In February 1986, the SCDHS requested funding from the New York State Department of Environmental Conservation (NYSDEC) through provisions of CERCLA to procure a safe drinking water supply for the residents in the risk area. On March 10,1986, EPA received a request from the NYSDEC for an EPA removal action at this site. A removal action was approved and on March 26, 1986, EPA initiated bottled water delivery to 47 homes. In September 1986, the Region 2 Administrator granted additional funding authorization for a removal action under CERCLA to provide a permanent, safe potable water supply system. The Action Memorandum called for the installation of a water main and water service to homes in the affected area under the Cleanup Services (ERCS) contract.' Through ERGS, local construction of the water main grid system was started in October 1987. A total of 11,048 linear feet of ductile iron, cement-lined water mains were constructed with 16 fire hydrants for fire protection. All work was done *A delay of several months was experienced because of litigation between two water providers over franchise rights in the area. During this period of time, EPA extended the bottled water delivery to approximately 100 additional homes in the affected area. To avoid further delay in the construction of water mains to the area, EPA decided to use the ERCS zone contractor to construct a water distribution system exclusively within the Friendship Drive risk area. Both water companies involved with the litigation were willing to allow the project to go forward on this basis. This agreement circumvented a court order obtained by one of the parties of the lawsuit that had prevented EPA from proceeding with earlier installation. Ill ------- Friendship Drive Site, Region 2 (Continued) tander EPA's ERCS. A subcontractor was hired to Install the water mains and extend service lines to each property line where service connections were located. In November 1987, EPA accepted Suffolk County Water Authority's (SCWA's) offer to provide water and operate the Friendship Drive grid system at no cost. Each home required individual meters and service connections. Water meters were furnished and connected by SCWA at no cost to EPA. The City of Brookhaven assisted with costs for street repaving after installation of the water mains. The action was completed in 1989. In all, approximately 150 homes were tied in to the water system. SCDHS continues to monitor wells in the adjacent areas for possible contamination. 112 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Pulton Terminals, Region 2 Oswego County, New York Status: Emergency removal activities have abated surface soE contamination. Remedial activities continue on the site to treat contaminated ground water. The site is currently listed on the National Priorities List (NPL) and is closely associated with the Pollution Abatement Services Superfund Site also in Oswego, New York. Results and Benefits: The threat of direct contact with PCB- eontaminated soil has been eliminated. Ground water, used as a drinking water source, and the nearby Oswego River have been spared the potential of offsite contaminant migration. The EPA also recovered most of its past cleanup and oversight costs. An innovative settlement strategy resulted in over $4 million in cleanup work performed by 59 of the 60 parties responsible for the site contamination. Background: Fulton Terminals is a 1.6-acre tank farm bordering the Oswego River in upstate New York. The site is located in an urban area; about 13,000 people live within 3 miles. During the operational lifetime of Fulton Terminals, tanks stored and transported millions of gallons of oils, wastes, and sludges. From 1972 to 1977, Fulton Terminals was a staging and storage area for hazardous waste materials scheduled for incineration at the Pollution Abatement Services site. Both sites are on the NPL. Tank leaks and spillage that occurred while the site was active contaminated the ground water and soil as well as the Oswego River sediments. The pollutants identified were primarily volatile organic compounds (VOCs), heavy metals (such as arsenic, barium, chromium, and lead), and polychlorinated biphenyls (PCBs). While the site has long been surrounded by fences and warning signs, birds and small animals faced potential health effects from contact with the contaminated soil or ground water. Site runoff periodically subjected the nearby Oswego River to contamination, a potential risk for swimmers and those eating fish from the river. Actions: In 1981, the owners of the site initiated a voluntary cleanup after receiving a citation for not meeting Federal and State standards for the operation of a hazardous waste facility. They emptied and removed four storage tanks, but abandoned the cleanup in 1983 after being fined by the State for using an unlicensed hauler of PCBs. The site was listed on the NPL in 1983. When EPA identified obvious soil contamination at Fulton Terminals, investigators quickly determined that site conditions presented an imminent and substantial endangerment. The contamination mav have resulted from leaks ------- Fulton Terminals, Region 2 (Continued) or spills when the site owners were conducting transfer operations. In 1986, the Superfund team immediately undertook cleanup actions that: • Secured the site by installing fences around the contaminated area; • Excavated and removed about 300 cubic yards of contaminated soil and tar-like waste; • Removed all remaining storage tanks; and • Partially removed and plugged a storm and sewer pipe leading to the Oswego River. After EPA's actions eliminated immediate threats at the site, the State assumed responsibility for the long-term cleanup, hi June 1987, the State released its proposed site cleanup plans calling for wastes to be excavated and incinerated. Negative public comments over the initial study's thoroughness led the State to resample the site, and a new report issued in 1988 recommended capping of site contaminants. In response to public concern over the completeness of the State's study, EPA decided to take over cleanup activities in 1988 and conducted a supplemental site study. Its extensive analysis completed in 1989 complemented the State's existing site information and provided sufficient data for a final remedy selection. A public meeting was conducted to discuss the proposed plan for long- term cleanup. The remedy includes excavating and cleaning approximately 4,000 cubic yards of soil. The treatment involves heating the contaminated soil to vaporize contaminants, which are then collected in specially designed filters. The remaining treated soil will then be put back in the excavated areas onsite. The remedy also calls for the long-term extraction and filtration of polluted ground water. 114 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Hicksville MEK Spill, Region 2 Hicksville, New York Status: The Planned Removal Action has been concluded for this site. Followup monitoring has shown no residual contamination. Benefits and Results: The sole contaminant of concern in this incident was methyl ethyl ketone (MEK), a highly water- soluble volatile organic compound (VOC). This removal action represents the first EPA field action involving the use of High Temperature Air Stripping for removing VOCs from ground water. This action also included the first use of biodegradation in a removal action by Region 2. Background: Approximately 4,800 gallons of MEK were discharged on February 17, 1982, at a warehouse in Hicksville, New York. The tanker truck containing the chemical overturned in the warehouse parking lot after a section of the asphalt surface collapsed. The MEK spilled onto the ground, saturating the soil below, and the remainder entered four dry wells on the premises. This area in Long Island acts as a recharge area for two aquifers. Actions: Hicksville Fire Department firefighters diked the spill site and pumped approximately 5,000 to 8,000 gallons of water containing fire retardant foam onto the spill. The On-Scene Coordinator (OSC) estimated that over 100,000 gallons of water had been sprayed to minimize the danger of fire and/or explosion. This later may have impeded the cleanup effort because the excessively diluted MEK made it more difficult to retrieve and/or treat. In the hours following the spill, the responsible party (RP) and its outside contractor began cleanup of the site. By that evening, 8,180 gallons of water and foam contaminated with MEK had been removed from the parking lot and the dry wells. The following day, 30 drums of soil contaminated with MEK, water, and foam were collected onsite. Measures were also taken to prevent rainwater from entering the dry wells and further contaminating the subsurface, On February 18, the RP was requested to complete the cleanup within 2 weeks; however, Nassau County was advised on February 24 that the RFs cleanup activities had been terminated at the request of its insurance carrier and the property owner. In a letter dated March 1, the RP's attorney disavowed his client's responsibility for the spill. On April 20, 1982, the Nassau County Department of Health requested cleanup assistance from the New York State Department of Environmental Conservation (NYSDEC). A Federal EPA Fund Authorization Request to support an Immediate Removal Action was denied because there was no evidence that the spill would reach the aquifer beneath the site. In June, notice letters were sent from EPA's Enforcement Branch to the RP. 1 IK ------- Hicksville MEK Spill, Region 2 (Continued) In September, a test well showed significant concentrations of MEK in the soil and in the aquifer, A revised application for an Immediate Removal Action was also denied because no immediate impact on human health could be shown. The Region was advised to request a Planned Removal Action and to continue to pursue the RP through Administrative Orders (AOs). In response to an AO issued by EPA, the RP began work in late 1982, only to stop again in early 1983 at the behest of its insurance carrier. In March 1983, EPA and NYSDEC agreed to jointly fund a Planned Removal Action. Funding was approved in June 1983, and work began on design and testing of the High Temperature Air Stripping (HTAS) device. Onsite construction of the HTAS began in May 1984. In July, the system became operational and continued on a 24-hour-per-day schedule until October 7, when funding for the Removal Action ran out. Toward the end of the Planned Removal Action, biodegradation was incorporated into the project as a final measure to remove any remaining MEK in the ground water. Concentrations of up to 200 mg/L MEK are easily biodegradable using domestic wastewater as the source of microbial seed. Preliminary studies with water samples from the Hicksville site showed that the addition of trace nutrients and glucose produced a million-fold increase in the density of the indigenous bacteria. Concomitantly, a 99.98 percent reduction in MEK concentration was seen in these samples. Introduction of nutrients into the ground water to stimulate degradation of the MEK was approved by the NYSDEC on July 30. Four surface wells and four deep wells were used to inject 24,000 gallons of nutrient solution into the ground between September 1 through 10. Results of the biodegradation procedure on MEK concentrations were not convincing. Nutrient injection was producing an algae bloom that subsequently clogged the heat exchanger plates of the HTAS system, causing some down time. Demobilization for the Planned Removal Action was complete by November 7,1984. Monitoring through 1986 showed no residual MEK in either the onsite monitoring wells or downgradient. By the conclusion of this Planned Removal Action, approximately 5.76 million gallons of MEK-contaminated ground water had been treated to below the New York State criterion of 50 ppb and had been reinjected into the ground underlying the site. 116 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Kin-Buc Landfill, Pool "C" Area, Region 2 Edison, New Jersey Status: The Potentially Responsible Party (PRP) continues to maintain this site under the supervision of the Region 2 Removal Action Branch. Benefits and Results: Polychlorinated biphenyls (PCBs), heavy metals, and more than 100 toxic contaminants identified in the ground water, surface water, sediment, and air have been controlled by continuing actions. Oil seepage from the landfill mound has decreased. Remediation of an adjacent wetlands area is planned. Background: The Kin-Buc Landfill in Edison Township, Middlesex County, New Jersey, was developed on wetlands north of the Raritan River. It is adjacent to several industrial facilities and the Edison Township Landfill, and borders Edmonds Creek, a tributary to the Raritan River. Kin-Buc, Inc., a subsidiary of Scientific, Inc., operated the landfill between 1971 and 1976. At that time, the landfill was State-approved for industrial and domestically generated wastes. An estimated 70-million gallons of oils and chemicals were dumped into the 22-acre landfill. In 1976, the New Jersey Department of Environmental Protection revoked Kin-Buc's operating permit for violation of environmental statutes. The front entrance to the facility is controlled by a command post. An access road leads to a fenced staging area on he southeast side. This area is designated as a level "B* personnel protection area due to high levels of volatile organic compounds. Storage areas for oily and aqueous leachate are located within the fenced area. Near the staging area are three pits into which the oily and aqueous leachate seep. The oily leachate contained PCBs over 8,600 ppm. Bordering this area is the Pool "C* area, which is a tidal basin. The outgoing tide flows down Edmonds Creek. Actions: EPA initiated legal actions in 1979, directing Kin-Buc and other parties to take corrective action. Late in 1979, an oE sheen was observed in Edmonds Creek near the base of the landfill. The leachate reportedly contained PCBs. Kin- Buc denied responsibility by contending that Pool C, which was the origin of the oil sheen, was not on Kin-Buc property. Kin-Buc, therefore, refused to take corrective measures to stem the leachate flow or to effect cleanup of the area. An EPA removal action under Section 31 l(k) of the Clean Water Act of 1977 commenced in February 1980. A contractor was engaged to contain the leachate from the seeps at the base of the landfill mound. These actions continued through December 1980; approximately 2,253 55-galkm drums of PCB-contaminated leachate were accumulated. Contaminated solids were removed from the site to a secure landfill for disposal. This 311 removal action continued until August 1981, when cleanup authority was 117 ------- Kin-Buc LandfiU, Pool "C" Area, Region 2 (Continued) transferred to the CERCLA Removal Program. In September 1980, Kin-Buc complied with part of EPA's request by capping the landfill with a synthetic membrane/clay cap. Thus, rainwater was prevented from infiltrating the landfill mound. From December 1980 through December 1981, EPA operated an oil/water gravity separator and pretreatment facility to reduce concentrations of hydrocarbons in the aqueous leachate. The treated water was then disposed of at the local municipal water treatment plant. Oily leachate was disposed of at a federally approved facility that accepted PCB contaminants at levels above 500 ppm. Sorbent booms and a filter box were installed in 1982 to protect the marsh from leachate oily materials and other substances. In October 1982, Kin-Buc assumed cleanup responsibilities under an agreement with EPA, which continued under the supervision of the EPA On-Scene Coordinator (OSC). Activities from 1982 to the present include drilling of monitoring wells, flow monitoring, drum sampling, hydrogeologic investigations, drum removal, leachate disposal, oil waste disposal at an incineration facility, removal of solid pack drums, air monitoring, grading operations, aqueous pretreatment plant operation, and berm construction. Because Kin-Buc personnel were onsite during Hurricane Gloria, no oil breeched the pit walls or entered Edmonds Creek. Kin-Buc continues to conduct cleanup operations and to dispose of oily and aqueous leachate while formulating a plan for ultimate cleanup or containment of the area. Plans for a slurry wall have been completed. Excavation of the wetland for contaminated sediment is scheduled to begin January 1994. 118 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Montclair/West Orange Radium Site, Region 2 Essex County, New Jersey Status: Remediation activities for Phase I properties have been completed. Remediation activities for Phase IIA properties were anticipated to be complete by April 1994. Phase IIB remediation is in progress and expected to be finished in May 1995. Results and Benefits: The selected remedy will reduce, to the lowest levels practical, the existing public health threats posed by indoor radon and radon decay product concentrations, indoor and outdoor gamma radiation levels, and inhalation and ingestion of radium-contaminated materials. Health risks resulting from radon gas and gamma radiation have been reduced in contaminated houses through the use of vent illation units and/or gamma radiation shielding equipment. Background: The Montclair/West Orange Radium Site occupies approximately 120 acres and includes 441 properties in the Towns of Montclair and West Orange, New Jersey. The contaminated areas are located in the eastern foothills of the Watchung Mountains in well established residential neighborhoods with single- and two- family homes. Soil in the area is contaminated to varying degrees with radioactive waste materials (e.g., isotopes of radium, thorium, uranium, and lead). The waste materials are suspected to have originated from nearby radium processing or utilization facilities that operated in the early 1900s. Some of the contaminated soil was believed to be used as fill in the low-lying areas and was mixed, in some instances, with Portland Cement to make concrete for sidewalks. The site was identified in 1981 as part of a program initiated by the New Jersey Department of Environmental Protection (NJDEP) to investigate former radium processing facilities. At the request of NJDEP, EPA conducted an aerial gamma radiation survey that indicated several areas of elevated levels of gamma radiation. Ground investigations conducted in 1983 confirmed contamination at Montclair and identified several houses where gamma radiation and radon decay products exceeded acceptable levels. The West Orange area was added to the contamination site in April 1984. Actions: Remedial actions for the Montclair/West Orange Radium Site include the following: excavation of all radium-contaminated materials exceeding cleanup criteria; transportation of excavated materials to an appropriate offsite facility for disposal; environmental monitoring; and continuation of treatment technology studies that may reduce the volume of radium- contaminated materials. Prior to the commencement of remediation activities, EPA installed ventillation equipment and/or gamma radiation shielding into properties that were affected by excess radon gas and/or gamma radiation. ------- Montclair/West Orange Radium Site, Region 2 (Continued) The remediation activities for the Montclair/ Montclair, West Orange, and Glen Ridge is West Orange Radium Site are being conducted scheduled for completion around May 1995. in conjunction with similar remediation at the Glen Ridge Radium Site, Essex County, New The remainder of the sites for the Montclair/ Jersey. The remediation activities for both sites West Orange Radium Site are to be remediated are being conducted in seven phases. Phase I in Phases III and V. Phase III contract bidding has been completed. Phase HA, encompassing was expected in early 1994. EPA is currently 26 properties from Montclair and West Orange, completing the remedial design for the properties was scheduled to be complete by April 1994. and assembling the construction bid package Phase IIB, encompassing 53 properties in for Phase V. 120 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Moreland Site, Region 2 Commack, New York Status: This site is currently in use as a dog kennel; the owner and manager reside on the property. This was the 1,000th emergency hazardous waste removal project under the Super fund program. Results and Benefits: The immediate risk posed by leaking cylinders containing hydrogen fluoride was removed. Nearby residences were spared accidental exposure via dermal contact and inhalation. After cleanup operations, the site remains in use. Background: This 1-acre site, located in a rural area of Long Island, is the site of a dog kennel business. The owner and manager reside on the property. In addition, two residences and a commercial business are within 150 yards of this site. The owner was improperly storing 160-pound cylinders containing a corrosive gas that were left on the property from a previous owner. Two of the 30 cylinders were approximately 40 years old, severely corroded, and leaking hydrogen fluoride gas. This highly reactive gas is hygroscopic and "fumes* when released into the air. Even after being diluted to air, this gas is extremely corrosive to the skin and eyes and can cause severe burns which may not manifest themselves until several hours after exposure. High levels of exposure can lead to permanent damage of the respiratory tract. At the site, the tree branches above the cylinders had been discolored. The gas sickened employees and neighbors of the kennel and killed several caged animals, leading local police, fire, and health officials to cordon off and evacuate the area. The residences of the owner and manager were within 30 yards of the hazardous materials. Actions: On July 24, 1987, the State, responding to notification by a kennel employee, requested EPA's assistance to investigate the situation. EPA contacted the manufacturer of the cylinders to verify their contents. At that time, nearby residents and 56 beagles were evacuated. To expedite the site assessment by EPA, a Federal On-Scene Coordinator was flown to the site via EPA helicopter to avoid delays due to heavy New York City traffic. The first phase of response was to stabilize the leaking cylinders by placing them in 55-gallon lime-filled drums. This was done remotely, using specialized equipment and personnel wearing the highest level of protective gear. One week later, onsite treatment involving a complex neutralization process began. The acidic material was drained through Teflon tubing to an inground reactor vessel containing a neutralizing solution. The design of the treatment system allowed for the entrapment of any vapors that would form as a result of the heat of reaction. Both stages of the removal action required the evacuation of nearby residences and animals. The empty cylinders and neutralized material were disposed of offsite at approved treatment, storage, and disposal facilities. ------- Page Intentionally Blank 122 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Onondaga Nation - Site B, Region 2 Onondaga Nation, Onondaga County, New York Status: The removal actions undertaken by EPA and a responsible party will be complete with the removal of approximately 120 buried barrels in the spring of 1994. Benefits and Results: The major threat that was addressed by Superfund actions at this easily accessible site was direct contact with industrial wastes from leaking and decomposing drums. Other environmental threats that have been addressed include contamination of the soil and of surface and ground water.' Current cleanup costs and reimbursement for prior costs incurred by EPA are being assumed by a responsible party, Rhone-Poulenc Basic Chemicals Co. Background: The Onondaga Nation is located just south of Syracuse, New York. Site B is located in the northeast portion of the Onondaga Nation, approximately 1.6 miles south of Syracuse and the adjacent community of Nedrow. Approximately 800 people live within 1 mile of the site, most of whom are American Indians. The nearest residence is located approximately 500 feet to the north. The site is easily accessible from a back road directly adjacent to an exit off Interstate 81. Low-lying drainage areas flow into a tributary of the Onondaga Creek. New York State-regulated wetlands lie within 1 mile of the site to the northwest. The 25-acre site was the location of a dump and junkyard during the mid-1950s through the 1960s. During the early 1960s, the site was used as a dump for barrels containing industrial wastes. Many 55-gallon drums were scattered in piles and buried throughout the site. The contents of these barrels were largely unknown because of illegible, deteriorated labels. Investigators found many to be empty, but these barrels may have leaked their contents onto the ground over the years. Other refuse at the site included hospital wastes, construction debris, motor vehicles, tires, and discarded appliances. In 1983, waste samples were collected and analyzed for hazardous substances. Benzyl alcohol was identified, and other components were detected, but not identified. Subsequently, a number of site inspections were conducted by the New York State Department of Health, the New York State Department of Environmental Conservation (NYSDEC), and Region 2 between 1987 and 1990. Several onsite drums were found to contain CERCLA hazardous substances; however, none of the samples tested positive for any of the hazardous waste characteristics required for a Federal or State action. No ground-water contamination was indicated. Actions: On August 15, 1990, the NYSDEC requested EPA to perform a removal action based on new 'Environmental concerns expressed by the Onondaga Nation deal with the historic usage of Indian land for the disposal of industrial wastes. Prior to regulation, this frequently occurred because Native Americans were not aware of the public health and environmental consequences. 123 ------- Onondaga Nation - Site B, Region 2 (Continued) information gathered in a March 1990 sampling operation.2 An EPA-led expedited removal action was initiated on August 17,1990, and consisted of removal of 20 previously identified drams of waste, fencing, and posting of warning signs. On September 9, 1991, the Regional Administrator approved an Action Memorandum and authorized funds to conduct a full removal action on the site. These EPA-led removal actions identified approximately 1,300 drums on the site. Of these, 1,046 were empty and were sent to a disposal facility for recycling. Wastes contained in the remaining drums was combined into compatible wastestreams and staged for removal. An Administrative Order of Consent was issued on September 25, 1992, between EPA and a responsible parry, Rhone-Poulenc Basic Chemicals Co., the legal successor in interest of the Cowles Chemical Company which contributed hazardous substances to the site during the 1960s. Under this order, Rhone- Poulenc assumed cleanup activities at the site and is responsible for prior costs incurred by EPA. Rhone-Poulenc's actions thus far have included clearing the site of debris, properly disposing of 60 drums containing the combined wastes from the EPA cleanup activities, sampling water wells adjacent to the site, and conducting a geophysical survey to find additional buried barrels. Approximately 300 test pits were dug to investigate magnetic anomalies identified during the geophysical survey, and 120 buried drums were found. These are scheduled to be removed for proper disposal in the spring of 1994. No ground-water contamination was found. 2Contributing to this decision were the inability of the Onondaga Nation to bear the cost of the cleanup, and the uncertain jurisdiction of New York State in Onondaga Territory. 124 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Pollution Abatement Services (PAS), Region 2 Oswego, New York Status: All removal actions at this site have been completed. The site is currently on the National Priorities List (NFL) and being addressed through the EPA Remedial Branch. Results and Benefits: EPA, in conjunction with the State, has used innovative technologies to significantly minimize the hazardous waste. This, in turn, reduces the possible expenditure of time, money, and manpower at future sites with similar characteristics. The technologies include: « Use of reverse osmosis, a process to concentrate waste and thus facilitate offsite disposal or further treatment; and • Ultraviolet oxidation, a process to destroy some of the toxic substances found in the leachate. The cooperative efforts of the State and EPA helped to streamline removal activities and have laid the foundation for the long-term remedial response. The removal actions have facilitated easier cost recovery at this site by identifying at an earlier stage over 126 potentially responsible contributors. Money has been recovered by some responsible parties to reimburse the EPA for past costs incurred. Background: Pollution Abatement Services (PAS) operated a high-temperature liquid chemical waste incinerator from 1970 to 1977 on a 15-acre site immediately east of the City of Oswego, New York. Operations were closed in 1977 by the State, and the facility was abandoned. At that time, large quantities of oil and hazardous chemicals remained on the property in drums, tanks, and lagoons. This site is associated with the nearby Pulton Terminals Super fund site. The site was listed on the first NPL in September 1983. Actions: Leaking drums and storage tanks on the site led to several remedial activities. EPA has been involved in four previous actions at this site. The first action occurred in June 1976, and a second occurred in December 1980. Prior to August 3, 1981, Federal response funding at this site was authorized under Section 311 of the Clean Water Act (CWA). Under these CWA actions, the following work was completed: * Treatment and disposal of liquids contained in two lagoons; • Capping and grading of the lagoons; • Installation of a filterbox system to filter leachate flowing from the site; • Emptying and disposing of liquid from two aboveground leaking tanks; and • OverpacMng of leaking and deteriorated 55-gaUon drums. The third EPA action initiated in August 1981 was funded by Superfund monies. The removal action included: ------- Pollution Abatement Services (PAS), Region 2 (Continued) • Containment and collection of leachate from seeps on the stream embankment on the northern perimeter of the site; « Determination of the best available methods for disposal of the material collected; and » Elimination or containment of the leachate source. The fourth action, also under the Superfund removal program, occurred in November 1986. The primary objective of this removal action was to eliminate the existing threat to the public and the surrounding environment imposed by the hazardous leachate associated with the site. Subsequent activities included: • Overpacking the remaining drums for disposal; • Emptying any additional underground tanks; and • Constructing a slurry wall, a synthetic cap, and a leachate collection/ground- water recovery system at the site. The potentially responsible parties have entered into an agreement with EPA to reimburse monies spent in past cleanup efforts. Ongoing action includes ground-water extraction and treatment. 126 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Pulverizing Services Site, Region 2 Moorestown, New Jersey Status: Removal actions were completed in 1992. Potentially responsible parties (PRPs) satisfactorily completed all activities under the Administrative Order on Consent. The site has been referred to the Remedial Program for soil investigation. Benefits and Results: This removal action addressed the immediate threats of fire, explosion, and consequent release of toxic materials. The unfenced site has been secured to prevent exposure of trespassers or passers-by to toxic materials. The removal actions have also abated toxic releases into the air and ground and surface waters that had once affected nearby residents. Further remedial activities may be needed to fully treat the remaining contamination. Background: The Pulverizing Services site is a former pesticide manufacturing facility abandoned in 1977. The site is in an industrial park that borders a residential area in Moorestown, New Jersey. The 24-acre site was used by up to five different pesticide formulation companies between the 1930s and the 1970s. An illegally operated 3- acre landfill was onsite, and there was evidence of illegal burial of materials in the landfill and elsewhere. The site occupants routinely processed pesticides, herbicides, and fungicides on various portions of the site. An intermittent tributary to Pennsauken Creek drains the area and may have received process discharges and/ or wastewater from the facility. There were also reports of airborne releases of dust, possibly containing pesticides and/or asbestos, by nearby residents since the 1940s. There was concern about hazardous substances detected in the soil migrating into the underlying ground- water system. Ground water is the sole potable water source for the area, and the closest public well is less than 1/2 mile away. Local newspaper delivery boys used an office building on the site as a local distribution center. Motorcyclists still use the property, as indicated by numerous motorcycle tracks throughout the area. Signs of vandalism resulting in the release of laboratory chemicals were found in several buildings. Large areas of stressed vegetation were visible on the site. Several hundred drums of various pesticides were found onsite along with hundreds of laboratory chemicals including cyanides, air and water reactives, oxidizers, flammables, shock-sensitive compounds, and explosives. The surrounding soils were found to contain high levels of DDT and its byproducts. Many chemicals present were proven to be carcinogenic, teratogenic, and/or mutagenic. Dioxin precursors such as methoxyclor and alpha-BHC were also found in the soil. Actions: In early 1988, EPA conducted onsite soil sampling to learn the extent of contamination. The site was then secured and stabilized. Shock-sensitive materials were removed, asbestos encapsulated, and containers ------- Pulverizing Services Site, Region 2 (Continued) consolidated into two onsite buildings. Later in 1988, additional funding was provided, allowing the waste to be inventoried and the most highly deteriorated chemicals to be removed. In a separate action, EPA's Office of Regional Council initiated a series of Administrative Orders on Consent (AOCs) with PRPs. The first AOC resulted in the PRPs erecting a security fence. A second AOC signed in 1989 required the PRPs to determine the type and extent of contamination at the site, and to perform ground-water monitoring. In addition, the PRPs were to identify and recommend feasible and appropriate response measures for mitigation of the soil and ground-water contamination. They conducted a geophysical survey and made preliminary recommendations in 1990. A third AOC was issued to 10 PRPs in March 1990. In this AOC, the PRPs were to clean up the buildings and dispose of the hazardous materials. Work was completed in August 1991. Recommended response measures for soil cleanup have been received by EPA for action under the Superfund Remedial Action Program. 128 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Quanta Resources, Region 2 Bergen County, New Jersey Status: All immediate and planned removal operations have been completed at the site. Subsequent remedial activities will address the ground-water contamination at the site. This site is fenced and inactive. Results and Benefits: Actions by EPA and Potentially Responsible Parties (PRPs) have eliminated the threat of direct contact with contaminants. The potential for hazards stemming from fire and explosion have been addressed. The adjacent Hudson River and its associated biota have been spared further contact with contaminated waste oil via site runoff. Background: This 15-acre site is the site of a former oil recovery/recycling operation on the banks of the Hudson River across from New York City. Coal tar processing operations began at this location in the 1930s and continued for the next several decades. The site is in an industrial area bordered on the north and south by other industrial facilities. The New Jersey Palisades, which provides a backdrop to the site 500 yards to the west, is the location for numerous residential units, including several high rise condominiums. Operations ceased at this facility in October 1981 at the direction of the State. The facility contained 61 above-ground storage tanks with a total storage capacity of 9-million gallons, plus as many as 10 underground storage tanks with an additional 40,000-gallon capacity. Large quantities of chemically contaminated waste oil, tar, sludge, asphalt, process water, and unknown liquids were abandoned in tanks throughout the site. These storage tanks, constructed in the late 1800s, were in poor condition. Secondary containment (dykes, containment walls) were inadequate for the volumes present. Actions: Because of the repeated discharge of contaminated oil into the Hudson River as documented by the U.S. Coast Guard, the State requested EPA's assistance in performing removal actions at the site in 1984. The removal action was conducted in two phases. Phase I was conducted as an immediate removal action to drain PCB-contaminated oil from deteriorating tanks, repair and make operational the oil/water separator, empty water from badly deteriorated tanks, remove most flammable materials, and improve site security. This action was undertaken from April to September 1985 and involved extensive site stabilization and the removal of over 2.4-million gallons of hazardous wastes. Phase n was a planned removal that addressed disposing of the majority of the 750,000 gallons of polychlorinated aromatic hydrocarbons (PCB)- contaminated waste oil and 4-million gallons of other hazardous liquid and waste sludge from the bulk storage and cut-off tanks; emptying and cleaning the onsite underground storage tanks, and filling them with inert material; containing any offsite contaminant leakage; and removing and disposing of all contaminated ------- Resources, Region 2 (Continued) drums stored at the site. The Potentially Responsible Parties (PRPs) responded in December 1985 to assume the planned removal responsibilities. EPA monitored the response. During this action, the PRPs used waste solvents from the site to assist in the difficult removal of remaining tank bottoms. Materials were processed into a low grade fuel containing hazardous waste and were burned in a permitted facility. Aqueous waste, contaminated waste oil, sludge, and soil was disposed of at approved facilities. The PRP above-ground removal action was completed in September 1988. In March 1992, EPA conducted sampling to determine if hazardous waste had migrated into the ground water. The sampling results demonstrated varying degrees of heavy metal, PCB, volatile organic, semivolatile organic, and polyaromatic hydrocarbon (PAH) contamination. Negotiations continue with the PRPs to address the residual contamination. 130 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Radium Chemical Company Site, Region 2 Queens County, New York Status: As a result of removal action, the fenced site is now a flat, level, vacant lot with no buildings onsite. The site was discovered in 1988 and placed on the National Priorities List (NPL) in 1989. Results and Benefits: Residents and businesses of the greater New York City area were protected from potential fire/ explosion and from the radiation exposures that would have resulted. In an area that is generally zoned for heavy industrial operations, this site is no longer a concern to planners, the fire department, or the health department. According to the Queens Planning Department, the only likely reuse for the site is industrial or commercial. Background: The now-insolvent Radium Chemical Company handled sealed sources (needles) of Radium-226 for use in cancer therapy. Several thousand needles were found on the 1/3-acre site. Some were located in a vault in one building. An estimated 120 curies of radium were found on the premises — an amount which, if dispersed by fire or explosion, could have affected all of New York City. Two adjacent rooms also may have been contaminated with other radioactive sources and contained over 200 laboratory-size bottles of reagent chemicals that included corrosives, flammables, poisons, and potentially shock-sensitive ethers. The Agency for Toxic Substances and Disease Registry (ATSDR) issued a public health advisory to avoid the widespread radiation contamination that would result from a fire and/or explosion at this site. The site is adjacent to the Brooklyn-Queens Expressway in a densely populated urban area. In 1983, New York State ordered Radium Chemical to stop operating due to shipping and handling violations. Further inspections revealed that the onsite radiation levels surpassed allowable standards, indicating that the radium had been improperly stored and that there were defects in the radium containers. Several shipments of radium had also been lost. In 1987, the State ordered Radium Chemical to remove its inventory of radium containers and to decontaminate the warehouse. The company vacated without complying, and in 1988, the site was declared abandoned. Criminal convictions against the company were obtained in 1989 for State labor law violations. EPA is preparing to place a lien on the property for recovery of cleanup costs. Actions: EPA fenced the site and initiated 24-hour site security as an initial action. A monitoring system was installed to prevent or detect any release of radiation into the community. A community relations trailer was set up onsite, and an information hotline provided current information in Spanish, Greek, and English. For radiological cleanup, EPA obtained the assistance of a contractor to the U.S. Army Corps of Engineering by means of an Interagency Agreement. The radioactive wastes were packed and disposed of to Hanford, Washington. The laboratory chemicals were also removed and disposed of; the ether was detonated onsite. The 131 ------- Radium. Chemical Company Site, Region 2 (Continued) abandoned building was dismantled and removed in October 1991, when soil excavation began. Soil disposal was completed in March 1992. Risk assessment for the sewer is underway. 132 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Roebling Steel Site, Region 2 Florence Township, New Jersey Status: The site is currently inactive and under the control of EPA for environmental remediation purposes. The site is fenced while remedial operations continue. Roebling Park, immediately adjacent to the site, remains an active playground with tennis and basketball courts. Another playground is adjacent to the southeastern border of the site, which is a component of the second operable unit. Results and Benefits: Due to the size of the site and its close proximity to the Delaware River, the Village of Roebling, and a local playground, the release or migration of hazardous materials posed an immediate threat. The removal and remedial actions performed eliminated the threat of release, migration, and potential exposure to hazardous substances, and fire or explosion, in addition to contamination of the Delaware River via surface runoff. Local residents have been protected from dermal and airborne contaminant pathways while remedial activities proceed. Having been regraded and reseeded, the nearby Roebling Park has been restored to its original condition. Background: The approximately 200-acre Roebling Steel site is located in Burlington County, New Jersey. The site is bounded by the Delaware River to the north, Crafts Creek to the east, and the residential community of Roebling to the south and west. Roebling Steel manufactured steel and wire at the facility between 1906 and 1982. Due to financial obligation defaults, the U.S. Economic Development Administration assumed control of the site in 1979 for the purpose of liquidating the real assets. The site was added to the National Priorities List (NPL) in December 1982; the identified responsible parties did not have the financial means to address the problems at the extensive facility. Approximately 55 buildings occupy most of the site and are connected by a series of paved and unpaved roads. Slag residue from steel production was used to fill in a large portion of the bordering Delaware River shoreline. There were numerous potential sources of contamination at the site, including: 757 drums containing liquids and solids; 106 abandoned tanks', 183 transformers containing polychlorinated biphenyl (PCB)-contaminated oils; 52 railroad cars containing fly ash, dry sludge, and debris; pits and sumps; lagoons; friable asbestos insulation on pipes; a baghouse dust pile; chemical piles; tire piles; and a landfilL Actions: Due to the size and complexity of the site, a multi-tiered approach is being used to address the many sources of contamination. The site is divided into the following operable units: • Removal actions; • A remedial action under the March 1990 ROD (OU-1); and « A remedial action for the 34-acre slag area and the southeast playground under the September 1991 ROD (OU-2). ------- Roebling Steel Site, Region 2 (Continued) Removal Actions. Three removal actions have been performed at the site. In December 1985, the State of New Jersey removed picric acid and other explosive chemicals from one onsite laboratory. EPA performed a removal action between October 1987 and November 1988. This action included the removal of 300 lab-pack containers of chemicals, 3,203 55-galion drums, 3 pounds of metallic mercury, one drum of hazardous waste containing cyanide, 40 compressed gas cylinders, 3,000 gallons of sulfuric acid, 2,150 gallons of phosphoric acid, and 239,000 pounds of hazardous solids in drums. EPA performed another removal action that involved fencing the slag disposal area and excavating contaminated soil in an area of Roebling Park, which borders the manufacturing facility. First Remedial Action (OU-01). The first remedial action continued the site stabilization effort initiated under the removal action. Construction activities for this first remedial action started in December 1990 and were completed in September 1991. The sources of contamination dealt with under this remedial action were the following: 926 overpacked drums; 45,864 gallons of transformer PCB- contaminated oil and 860,7091bs of transformer carcasses; 266,843 gallons of tank liquids and 1,351 tons of tank sludges; 800 tons of baghouse dust; 251 tons of chemical piles; and 387 tons of discarded tires. Second Remedial Action (OU-O2). A second Record of Decision (ROD) was signed in September 1991 to address the 34-acre slag disposal area and the southeast playground. The remedy selected for the slag area includes treating the hotspots, and then covering the entire 34-acre slag area with a soil cover and vegetation. The remedy selected for the southeast playground includes excavating contaminated soil hot spots and offsite treatment and disposal at an appropriate facility. The remedial design contractor has completed the first phase of the design investigation, and the second phase of work is currently under review. Future Remedial Actions. The ongoing remedial investigation will characterize the remaining areas of concern: surface and subsurface soils, surface water and sediments in both the Delaware River and Crafts Creek, ground water, air, buildings, pits, sumps and pipes containing contaminated liquids and sludges inactive wastewater treatment plant, lagoons, landfill, insulation material containing asbestos, and remaining contamination sources. 134 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Signo Trading International, Ltd., Region 2 Mount Vernon, New York Status: Two removal actions were conducted at Signo Trading facilities to Mount Vernon, New York, from 1983 to 1984 and from 1986 to 1987. These sites have been cleaned up and are suitable for occupancy. Benefits and Results: The Signo Trading removal actions illustrate the capability of the Superfund Removal Program to efficiently handle potentially dangerous situations in densely populated inner-city areas. Safe and complete removal was accomplished despite legal complications, the threat of trespassing and vandalism, and vocal concerns on the part of the community. The threats of fire, explosion, direct exposure to toxic materials, and contamination of surface waters have been eliminated. The buildings safely house other businesses that provide jobs to the community. Background: Signo Trading International, Ltd., formerly known as SCI Equipment and Technologies, is located in Mount Vernon, New York, near the boundary between Mount Vernon and the Bronx in New York City. Signo was engaged in chemical trading and export. Approximately 30,000 people live within a 1 /2-mile radius of the site. Numerous public schools and a college are located in the immediate area. An industrial foam manufacturer is presently operating at the 14th Avenue site, employing approximately 25 people. A coffee manufacturer and distribution center is located across the street. A clear spill pathway exists to nearby sewers which reportedly discharge into the Bronx and Hutchtoson Rivers. The Signo sites contained a large inventory of materials including OSHA Class 1 flammable liquids, flammable solids, poisons, oxidizers, acids, alkalies, and air/water reactives. These materials were not segregated, and incompatible and interactive materials were haphazardly stored in conjunction with one another. Unmarked and deteriorating containers were found, as well as old containers of ether which had formed explosive peroxides. The 14th Avenue building itself was in poor condition, with roof leaks and exposed electrical wiring. At the time of the 1986-87 removal action, the owners of the company were in prison, convicted of fraudulent sales of chemicals to the Government of Zimbabwe, which involved U.S. foreign aid funds. Actions: The first removal action, in 1983-84, centered on hazardous chemicals at both the Lyons Place and 14th Avenue locations. This action was precipitated by findings of local fire inspectors during May 1983. In early June, a toxic substance was discharged into the sewers which was traced to Signo. Thirty people reportedly went to the hospital as a result of breathing the vapors. Signo continued to conduct business at these sites until July 1986, when the co-proprietors, Jack and Charles Colbert, were sent to prison. ------- Signo Trading International, Ltd., Region 2 (Continued) The second removal action, in 1986-87, was initiated when the Mount Vernon Fire Department conducted an inspection of the 14th Avenue site. Again, serious problems were found with storage of incompatible hazardous materials (acids/bases, flammables, explosives, etc.), which represented a serious and immediate threat to the surrounding community. As a result, the New York State Department of Environmental Conservation requested Region 2 personnel to initiate an immediate removal action in November 1986. EPA obtained access to the 14th Avenue site in the face of legal resistance by Signo's attorney. At the same time, the property owner evicted Signo from the site and granted EPA unrestricted access to the site to conduct the cleanup action. A public meeting attended by 700 area residents was conducted immediately prior to the cleanup. Attendees included the ItegjoriAdmmistrator, the Mayor of Mount Vernon, and the EPA On-Scene Coordinator. Actions included initial removal of nonhazardous debris, onsite chemical analysis, and a combination of onsite and offsite destruction of materials, which included detonation of explosives. Hazardous materials found by EPA also included approximately 50 barrels of diethyl ether supplied by the Drug Enforcement Administration as part of an Signo Trading International, Ltd., Region 2 (continued) undercover "sting" operation to identify illicit drug laboratories. Nearby workers and residents were evacuated during certain work phases deemed to pose a threat of explosion or toxic gas release. EPA provided the necessary security to prevent further trespassing and vandalism of the premises. The action was completed in November 1987, and control of the 14th Avenue property was returned to the owner. 136 ------- REGION THREE ------- Page Intentionally Blank ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Ambler Asbestos Piles, Region 3 Ambler, Pennsylvania Status: On August 30,1993, the Ambler Asbestos Hies site was placed on the Construction Completion List. A long-term operation and maintenance plan was initiated to ensure the continued integrity of the asbestos piles. Access to the site has been restricted through the use of a security fence and warning signs. Results and Benefits: Threats to human health and the environment were minimized by stabilizing the asbestos piles against wind and surface water erosion, thereby reducing the threat of asbestos releases to the air and surface water. Background: The 15-acre Ambler Asbestos Piles site is made up of three asbestos-containing waste piles and a series of settling and filter bed lagoons. The Keasbey & Mattison Company owned the site from the late 1800s to 1962. The company manufactured Pharmaceuticals and asbestos insulation products. The site was parceled and sold in 1962 to two companies, both of which manufacturered asbestos products. Nicolet Industries, Inc., purchased the property, which contained two of the waste piles, the Locust Street Pile and the Plant Pile, as well as the settling and filter bed lagoons (designated OU1). The company pumped wastewater from settling ponds into diked channel areas, creating wet asbestos piles that gradually dried and were built up as new diked areas. CertainTeed, Inc., purchased property that contained the third waste pile, known as the Pipe Plant Pile (designated OU2). This company dumped broken wallboard and asbestos pipe products onto the Pipe Plant Pile, and periodically compacted the pile with tractors. The total volume of asbestos-contaminated waste in the piles is estimated to exceed 11/2 million cubic yards. In 1971 and 1972, Nicolet and CertainTeed applied for permits to continue the operation of their sites. The State denied the applications in 1974 and ordered both companies to stop dumping asbestos waste and to stabilize and cover the piles. EPA found asbestos in the soil and on equipment in the Locust Street playground, which is adjacent to the site. Approximately 6,000 people live within 1/2 mile of the site. The nearest residence is within 200 feet of one pile, and approximately 40 residences are located within 1/4 mile of the site. Wissahickon Creek and its flood plain border the site. Actions: The remedial activities at OU1 were completed in three distinct phases: the Borough Phase, the Lagoon Phase, and the Construction Phase. The Borough Phase, completed in the fall of 1991, included locating and accessing sewer manholes along the easement on the south side of the piles, removing pallets from the northern edge of the lagoon area, and extending a 24- inch drain culvert on the south side of the Locust Street Pile. The Lagoon Phase, completed in the fall of 1991, consisted of draining and capping the lagoons. The lagoons were dewatered and 4- to 6-inch ballast stone was placed in the lagoons to a sufficient depth to provide pore ------- Ambler Asbestos Piles, Region 3 (Continued) space into which the sludge in the basins could move and be contained. The lagoons were backfilled and the surface graded to drain to the existing outfalls leading to Wissahickon Creek. Silt fences were installed to control erosion, and the entire site was seeded with a mixture of rye and crown vetch. The Construction Phase, completed in the fall of 1992, included placing a non-erodible cap on the two piles, construction of a buttress fill on the southern edge of the Locust Street Pile, and construction of a revetment system to protect the northwest side of the Locust Street Pile from erosion by Wissahickon Creek. Fences and warning signs were placed around the perimeter of the site to restrict access to the site. Remedial activities at OU2 consisted of: clearing vegetation on the pile's surface; redistribution of exposed contaminated material to the pile; placement of additional soil covers on the pile and slopes; installation of erosion and sediment controls; revegetation of disturbed areas; and installation of a fence with locking gates. Gabion boxes for erosion control were installed along the banks of the directly adjacent Stuart Farm Creek, a tributary of Wissahickon Creek, to protect the pile against the scouring action of the creek. Construction was completed by November 12, 1992. 14O ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Bruin Lagoon, Region 3 Bruin Borough, Pennsylvania Status: This site is currently fenced and inactive. Waste is stabilized and capped. Migration of sludge below grade was completed in 1984. Continued monitoring by EPA will evaluate the effectiveness of the cleanup remedial activities. Results and Benefits: The cleanup actions to stabilize, contain, or remove contamination have reduced the potential for exposure to hazardous materials and controlled further spreading of contamination at the Bruin Lagoon site, thus addressing the protection of nearby surface waters and downstream water supplies. Background: The 6-acre Bruin Lagoon site is located on the South Branch of Bear Creek in Butler County, Pennsylvania. An estimated 700 people reside in the community. Bruin Lagoon is approximately 7 stream miles above the confluence of Bear Creek with the Allegheny River, an important water supply source for many industries and communities, including Pittsburgh. The site is in a highly industrialized narrow valley, where industry includes coal mines, oil fields, and three major chemical companies. For 40 years, the site was used to dispose of oil refinery wastes and motor oil reclamation wastes. The site includes a 1-acre open sludge lagoon contained by a 22-foot earthen dike, a 2-acre closed lagoon, an effluent pond, 24 abandoned storage tanks, and an area of contaminated soil on adjacent private properties caused by flooding in 1980. Soil, ground water, and surface water were contaminated by sulfuric acid, heavy metals, and hydrogen sulfide. The first evidence of contamination from the site was a large fish kill in the Allegheny River, resulting from 3,000 gallons of acidic sludge being spilled into Bear Creek in 1968. The effect of this spill was seen 100 miles downstream. Actions: EPA began investigating the site in 1981 to determine the extent of contamination. Cleanup work included removing the liquid floating on top of the open lagoon and disposing of it offsite; containing the remaining wastes onsite; and stabilizing the lagoons and dikes. Discovery of hydrogen sulfide gas during the remedial action required emergency action. In 1984, site security, air monitoring, and ground-water and surface-water sampling were initiated, and 13 venting wells were installed. The work has stopped the migration of sludge below the grade of the lagoon using physical containment, EPA completed this phase of cleanup activities in 1984. FoEowing a re-investigation, actions were taken to further stabilize the wastes, vent trapped gases, and cap the stabilized sludge. ------- Page Intentionally Blank 142 ------- SUPERFUND SITE COMPLETED NPL SITE PACT SHEET C&R Battery Co., Inc., Region 3 Chesterfield County, Virginia Status: Remedial construction activities have been completed. Environmental monitoring to ensure the remedy's effectiveness is ongoing. The site is currently inactive, with access and use restrictions in place. Results and Benefits: The selected remedy has eliminated the threat to human health and the environment by removing the contaminated soils, sediments, and debris that posed direct contact and ingestion hazards. Soil cleanup levels have been achieved. Future contamination of surrounding soils, surface water, and ground water has also been prevented. Background: The 11-acre C&R Battery Company site was used from 1969 to 1985 to saw and shred automobile, truck, and industrial batteries for the recovery of lead and lead compounds. Battery acid was drained into onsite storage/ containment ponds. Lead and lead compounds were recovered and stockpiled for later offsite shipment. Crushed batteries were ultimately buried throughout the site. Site samples taken from the late 1970s to the mid-1980s indicated the presence of contaminants such as arsenic, chromium, copper, nickel, and mercury as well as concentrations of lead up to 16,000 mg/kg. Soil pH ranged from 3.3 to 6.5 standard units (su). Water samples from the onsite drainage ditch also indicated high levels of lead and pH levels ranging from 0.4 to 6.0 su. In response to public health concerns, EPA conducted the following actions in the summer of 1986: neutralized the site's acidic liquids, sludges, and soils; regraded the drainage ditch and installed erosion control measures; installed a security fence around the site's perimeter, and returned battery-related debris found on nearby property to the actual site. The site was placed on the National Priorities List (NPL) in 1987. The surrounding area is primarily industrial and residential. The James River is located approximately 650 feet north of the site. Actions: Remedial activities focused on the land leased by the C&R Battery Company (4.5 acres) as well as land from surrounding properties that was contaminated through the C&R Battery Company's operations (6.5 acres). The selected remedy for the site included the following actions: excavating surface and subsurface soils with lead concentrations above 1,000 mg/kg and drainage ditch sediments with lead concentrations above 450 mg/kg; stabilizing the excavated soil and sediments; disposing of the stabilized material in an approved industrial or sanitary landfill; cleaning and closing the former acid pond area; backfilling all excavated soil and sediment areas and covering these areas with topsoil; placing a topsoil layer over areas where the lead concentration was between the background concentration and 1,000 mg/kg; revegetating topsoil covered areas; and ------- C&R Battery Co., Inc., Region 3 (Continued) implementing an environmental monitoring program and appropriate site access and use restrictions. Remedial construction activities have been completed. Ground-water monitoring is currently ongoing. 144 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Chemical Metals Industries, Region 3 Baltimore, Maryland Status: Remediation activities were completed in 1981 during a 2-month period. The building and yard of the former main operations center are currently used by the Maryland Department of the Environment as field headquarters. The storage area nearby is a neighborhood park. Results and Benefits: An environmental watchdog for the State of Maryland occupies the site of what was an abandoned precious metals recovery facility that housed drums of caustics and corrosive liquids. Nearby, approximately 1,500 drums containing hazardous substances contaminated the soil to the extent that many tons of cadmium-laden soil had to be removed. In its place now stands a neighborhood park. The cleanup of the Chemical Metals Industries (CMI) waste site was the Nation's first Superfund activity that included remedial action. Background: From the 1950s until declaring bankruptcy in 1981, CMI occupied two parcels of property in the mainly residential section of Westport, in Baltimore, Maryland. The main facility recovered precious metals from waste chemical solutions and printed circuit boards. The storage area for its wastes consisted of an old gasoline station garage and an adjoining yard two blocks away. The refining operations used corrosive liquids, cyanide compounds, and ammonia compounds all within a stonesthrow of the local post office. Over 1,500 plastic and metal drums were stored without regard for their contents within a block of houses. Some were seen leaking onto the ground. Rainfall contributed to the surface run- off of a blue-green liquid directly into the local sewer system. Contamination of the ground water was found later, evident by the blue-green coloring of samples taken at monitoring wells. This was most likely due to the high levels of copper found in the soil. Zirconium, an unstable metal in powder form and reactive in solid form, was found in abundance at the site. The chemical substances abandoned at the site could have reacted, causing fire or explosions. Actions: More than 1,500 plastic and metal drums and nearly 100 tons of contaminated soil and other debris were removed from the storage area. Approximately 1,000 gallons of liquid were pumped out of four underground storage tanks found at this site. After the hazardous materials and other debris had been removed, the area was graded, capped, and revegetated. At the main operations center, approximately 12,000 gallons of acidic and basic solutions were pumped from 15 large above-ground storage tanks. These tanks, along with other structurally unstable structures, were then removed. An additional 100 smaller drums of liquid wastes were also removed. The yard was paved following cleanup and surface grading to minimize exposure to any contaminants remaining in the soil and to minimize infiltration from rainwater. ------- Page Intentionally Blank 146 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Chisman Creek, Region 3 York County, Virginia Status: As a result of remedial actions, baseball and soccer fields have been built on top of the capped fly ash disposal pits. Affected ground water will be treated until target contamination reductions are reached and maintained. The plant will then be shut down, and the site evaluated for deletion from the National Priorities List (NPL). Results and Benefits: Pits containing disposed fly ash from a power generation plant have been stabilized to prevent further leaching of soluble metals into ground water and surface water. Background: The 27-acre Chisman Creek site is located in suburban York County, Virginia. Land use in the area surrounding the site is mainly residential, with 500 to 1,000 people living within a 1-mile radius. Problems at the Chisman Creek site originated when a nearby power company's generating station disposed of fly ash in a low wooded area. Pits were filled with fly ash from the power plant which burned coal and oil-based coke from 1957 through 1974. The unlined pits, actually sand and gravel borrow areas, are located in the watershed of the Chisman Creek, a tributary of the Chesapeake Bay, Evidence of problems from the site first surfaced when nearby residents complained of discolored well water. Trace metals (most notably vanadium, nickel, and selenium dissolved from the fly ash) were found in the ground water, surface water, and the soils adjacent to the pits. Levels of nickel and vanadium in ground water were above target levels. Although bioassays showed the surface water quality in onsite ponds and the quality of sediments in Chisman Creek to be acceptable, there was concern that contamination in the creek would affect the 520-acre watershed of the Chisman Creek Coastal Basin on the 'Virginia Peninsula. Actions: The response actions were conducted from 1987 to 1989. Affected residences were connected to public water supplies and surface water and ground water were diverted in selected areas. The creek adjacent to one of the pits was relocated. The ash pits were capped with soil and hard clay, and an onsite treatment system was installed to remove nickel and vanadium from ground water collected from the pit area. Originally slated for restricted use after cleanup, the idea for a more progressive use of the land resulted from dialogue between the local government, the Potentially Responsible Party (PRP), and EPA. Their cooperative efforts resulted in the development of a much-needed public facility. The final agreement also covered an equitable approach to the cost of maintaining the facility. The sports park, constructed by the PRP during remediation, was leased to the county at a rental rate equal to the annual property taxes of the ------- Chisman Creek, Region 3 (Continued) park grounds. Park maintenance (essentially the same as post-remedial site maintenance) is provided by the county. According to the 1992 assessment, the site was estimated to have a market value of $490,400. 148 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Coker's Sanitation Service Landfills, Region 3 Cheswold, Delaware Status: On September 9, 1993, the final construction inspection took place and verified the completion of construction. Both landfills are enclosed by a chain-link security fence and warning signs have been posted. Semi-annual ground-water monitoring, semi-annual surface water sampling, and annual sediment sampling will be conducted for a minimum of 5 years. Future deed restrictions wiE prohibit any use of the property that might disturb the landfills surface. Results and Benefits: A combination of excavation of buried drums and capping of the landfills prevents surface exposure to hazardous materials. In addition, the prevention of future contamination of ground water including the primary drinking water supply for the region has been achieved. Background: The two Coker's Sanitation Service Landfills occupy 25 acres near Cheswold, Delaware. Coker's Landfill f 1 comprises 10 acres and Coker's Landfill #2 comprises 15 acres. The landfills were used for disposal of latex rubber waste sludges from what is now the Reichold Chemicals, Inc., plant. Approximately 45,000 cubic yards of waste sludge are present at each landfill. Coker's Landfill #1 operated from 1962 until 1976 and consists of an unknown number of unlined trenches. Coker's Landfill #2 was used as a solid waste disposal site from 1976 to 1980 under a State permit, and consists of 51 lined trenches, each with a leachate collection and monitoring system, and a ground-water monitoring system. The landfills are located above two ground-water systems: the Columbia Aquifer, which is a water table aquifer, and the Cheswold Aquifer, which is a deeper artesian aquifer. Approximately 4,000 people live within a 3-mile radius of the site and two farms are adjacent to the landfiEs. The primary drinking water source in the region is the Cheswold Aquifer, although the Columbia Aquifer is also used for domestic water supplies, Actions: In 1989, buried drums were found in Landfill # 1 and were subsequently excavated and incinerated offsite. Drum staging areas were fenced in for security reasons. Starting in July 1993, vegetation around both landfills was cleared, security fences were installed, and warning signs were posted around each landfill perimeter. At Landfill #1, leachate seeps were covered with wood chip mulch. At Landfill f 2, each waste cell's leachate coEection system was grout sealed. Settled waste ceEs were fiEed with clean soil, and the entire landfill surface was regraded. ------- Page Intentionally Blank 150 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Enterprise Avenue, Region 3 Philadelphia, Pennsylvania Status: All remedial actions at this site have been completed. The site is currently vacant, fenced, and capped with a vegetative cover. Ground- water monitoring will continue to ensure that background levels are maintained. The site was deleted from the National Priorities List (NPL) in March 1986. The site may be included in the future as part of an airport runway extension. Results and Benefits: Due to the site's urban setting, this contamination posed a threat to the public by direct contact with the contaminated soil. EPA determined that all site contamination has been addressed as a result of the cleanup and that the site no longer poses a threat to the public or the environment. A recent proposal has slated a portion of the site to be included in the extension of a Philadelphia International Airport runway. Background: The Enterprise Avenue site, a former municipal landfill located in an industrial area near the eastern end of the Philadelphia International Airport, encompasses 57 acres. Until 1976, the City of Philadelphia used the site for the disposal of incineration residue, fly ash, and bulky debris. The soil was found to be contaminated with various organic compounds (VOCs) from the waste disposal practices. Actions: In 1982, the City of Philadelphia removed over 1,700 drums of sludges, solvents, oil, resins, and metal finishing waste from the site and excavated 32,600 cubic yards of contaminated soil. The remaining contaminated soil was stockpiled onsite in two separate piles and a partial cover was installed. EPA's selected remedy consisted of removing the remaining contaminated soil, installing a cap, and revegetating the area. A fence was installed around the site to prevent public access. Ground water continues to be monitored to ensure that the water quality remains at background levels. ------- Page Intentionally Blank 152 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Hebelka Auto Salvage Yard, Region 3 Weisenberg, Pennsylvania Status: EPA and the Commonwealth of Pennsylvania conducted a Final Inspection on October 15, 1993, and determined that EPA had constructed the remedy in accordance with the remedial design (RD) plans and specifications. Ground- water, surface water, and sediment monitoring, as well as a bioassessment survey, are required on an annual basis to ensure that no unacceptable exposure to risks posed by conditions at the site occur in the future. The site is currently being used as an auto graveyard and contains the residences of the site's owners. Results and Benefits: The remedial action removed the primary sources of the environmental threat, namely the lead-contaminated battery casings and soil and achieved soil cleanup standards. Protection of surface exposure to contaminants and prevention of contamination to surface water bodies have been achieved. EPA determined that no further soil, air, ground water, or surface water remediation was necessary in the vicinity of the site. Background: The 20-acre Hebelka Auto Salvage Yard site is located in a rural area of Lehigh County. Prom 1958 to 1983, approximately 750 to 1,000 cubic yards of battery casings were disposed of in two areas onsite. Automobiles, empty storage tanks, empty drums, and miscellaneous scrap metals were also disposed of onsite. Storage tanks are still disposed of on the site; however, this practice is under review by the State. In 1985, EPA conducted an onsite investigation and discovered contamination in sediments at Iron Run Creek, which is a tributary of Lehigh Creek, a cold water fishing stream. Two residences are located within the site boundaries and an additional 10 residences are located within 1,000 feet of the site. The population within a 1-mile radius of the site is approximately 300 people, and 1,000 people live within 2 miles. Approximately 2,800 people draw water from three Lehigh County Water Authority wells within 3 miles of the site; another 500 people use private wells. Actions: In response to the Pennsylvania Department of Environmental Resource's (PADER's) concerns about the impact of the site on aquatic biota in Iron Run Creek and in accordance with the requirements described in the Record of Decision (ROD) 2, EPA conducted a bioassessment on Iron Run Creek and the surrounding area on June 10, 1992. EPA evaluated water and sediment samples from Iron Run Creek and an unnamed tributary discharging to the creek from the Hebelka site for any potential impact of site contaminants on the streams and the terrestrial wildlife. Study results showed no impact on the aquatic or terrestrial environment in the vicinity of the Hebelka site. The June 1992 bioassessment was the first part of a 2-year study conducted as part of the monitoring program described in ROD 2. By April 2, 1993, 1,045 cubic yards of battery casings had been removed from the site for disposal. From July to October 1993, scrap ------- Hebelka Auto Salvage Yard, Region 3 (Continued) metal, trash, the remains of junked cars, and approximately 8,000 old automotive tires were decontaminated and relocated elsewhere on the 22-acre site. A total of 8,748 tons of contaminated soil were removed from the site for treatment/disposal and replaced with clean soil. The site was then backfilled with clean soil obtained locally, regraded, seeded, and furnished with erosion control measures where needed. 154 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Henderson Road Site, Region 3 Upper Marion Township, Pennsylvania Status: Construction of the site remedy has been completed. Ground-water recovery and treatment, as weE as ground-water monitoring, are ongoing. Deed restrictions and institutional controls restrict future use of the ground water and the site. A portion of the site is currently being used for auto maintenance operations. Results and Benefits: The selected remedy has removed the threat to human health and the environment. Capping the landfill and closing the injection well eliminated the hazards of direct contact and ingestion with contaminated compounds. Future contamination of surrounding soils, surface water, and ground water has also been prevented. Background: The 7.64-acre Henderson Road Site was used by the OUara Sanitation Company from 1974 to 1979 for waste transfer, waste recycling, vehicle maintenance operations, and office facilities and parking. Unknown quantities of liquid waste containing various organic contaminants were disposed of in a former water supply well, known as the injection well. Approximately 125,000 cubic yards of residential trash and construction and demolition debris were also disposed of in an onsite landfill that extended onto neighboring property. Approximately 2.5-million gallons of leachate existed within the landfill. From 1978 to 1983, several rounds of ground- water, surface water, and sediment samples were taken by EPA and the Pennsylvania Department of Environmental Resources (PADER). The site was proposed for the National Priorities List (NPL) in September 1983. Remedial investigation samples revealed a number of volatile organic compounds (VOCs) in the ground-water samples from the injection well. Zinc was also observed at levels above 100 parts per billion (ppb) in the ground-water samples. Samples of the soil, surface sediment, surface water, and leachate surrounding the landfill revealed contamination with 12 VOCs, 25 semi-volatile organic compounds, 5 pesticides, and 2 polychlorinated biphenyls (PCBs), Low concentrations of barium, lead, and chromium were also detected. The site is bounded on the east by Frog Run, an intermittent stream. A 36-inch pressurized water main, operated by the Philadelphia Suburban Water Company (PSWC), crosses the eastern portion of the site, and an abandoned and flooded quarry, located 2,000 feet to the north, is operated by the water company as a drinking water supply. The land surrounding the site is used as industrial, commercial, and residential. Actions: Remedial activities for the site pertained to the remediation of the injection well or activities that focused on the landfill. Remedial actions for the injection well consisted of: installing clusters of ground-water recovery wells onsite and downgradient; air stripping/ biologically treating/carbon filtering ground ------- Henderson Eoad Site, Region 3 (Continued) water and discharging the effluent to Frog Run; closing the injection well; placing deed restrictions on the future use of the ground water; installing a treatment system at water lines connected to the one offsite active potable weE; periodic onsite and offsite ground-water monitoring; and periodic re-evaluation of the cleanup goals. Remedial actions for the landfill included: establishing run-on, run-off, and erosion controls; establishing a short-term and long- term leachate collection system; capping the landfill; isolating the PSWC water main from the landfill; moving any contaminated soil or trash that resulted from using property neighboring the site; establishing institutional controls to restrict activities that would interfere with site remediation; implementing future ground-water recovery and treatment if deemed necessary, and monitoring and periodic re-evaluation of cleanup goals. Remedial construction activities were completed as of October 1992. Ground-water recovery and treatment, as well as ground-water monitoring, are ongoing. 156 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Kimberton Site, Region 3 Kimberton, Pennsylvania Status: Construction of the ground-water recovery and treatment system was completed by September 1993. Ground-water treatment is expected to continue for 30 years. A portion of the site is currently being used by asphalt coatings manufacturer. Results and Benefits: The selected remedy has removed the threat to human health and the environment. Offsite disposal of contaminated soils and drums has mitigated direct contact and ingestion hazards. Ground-water treatment will eliminate any remaining hazards. Future contamination of surrounding soils, surface water, and ground water has also been prevented. Background: The Kimberton Site encompasses property owned by the Monsey Products Company and adjacent properties within the surrounding "village of Kimberton. From 1947 to 1959, a previous owner disposed of various residues from manufacturing operations (biochemical research and resin and textile production) in eight lagoons on the site. These lagoons were in close proximity to numerous private water supply wells. In 1981, routine water quality testing found a private well to be contaminated with volatile organic compounds (VOCs). Subsequent investigations indicated that the soil and surface water were also contaminated with VOCs. The site was placed on the National Priorities List (NFL) in September 1983. In 1984, Potentially Responsible Parties (PRPs) excavated and removed contaminated soil and 57 drums containing off-specification asphaltic products from the lagoon area and an on-site septic system. The excavated area was covered with soil and seeded. In 1986, the PRPs provided 25 residential and commercial locations with in- house carbon filters until an extension of the public water system could be constructed. Approximately 500 people live within a 1-mile radius of the site. A small stream that crosses through the site is the discharge point for local ground water. French Creek, a public recreation and fishing area, is less than 1 mile from the site. Actions: A remedial investigation in 1987 indicated that the soils, sediments, and sludge on site were once contaminated with VOCs including trichloroethylene fTCE) and dichloroethylene; however, contamination of those media was remediated in 1984. The investigation confirmed that ground water remained contaminated with VOCs includingTCE, dichloroethylene, and vinyl chloride and that French Creek was also contaminated with VOCs. In response, additional remediation activities were implemented. These included; constructing a ground-water recovery and treatment system that included extraction wells and an air stripping system; collecting and treating the ground water and then discharging the treated ------- Kimberton Site, Region 3 (Continued) effluent to the small stream that crossed the In 1992, thePRPs completed construction of an site; continuing in-house carbon filtration extension of the public water system to all operation and maintenance pending installation affected residences. Activated carbon systems of a public water supply system; administratively were dismantled at that time. The ground-water controlling the installation of new extraction recovery and treatment system was installed wells inside the plume; and long-term ground- between May and August 1993 and is now water monitoring. operational. Ground-water treatment is anticipated to be complete in 30 years. 158 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Lansdowne Radiation Site, Region 3 Lansdowne, Pennsylvania Status: As a result of remedial action, a new two-family home has been built on the Lansdowne Radiation Site and sold. The 1/2-acre site no longer poses any threat to the community and was deleted from the National Priorities List (NPL) in 1991. Results and Benefits: The potential threat of radioactive contamination to a quiet neighborhood in a densely populated suburb of Philadelphia has been removed. Property values adjacent to the site returned to full market value as of 1991. The 1/2-acre lot is valued at over $32,000. Background: From 1924 to 1944, the basement of the site's duplex was used for a family-owned and operated radium manufacturing business. Radium contamination was detected in the son surrounding the duplex structure and had migrated onto six properties bordering the duplex. No precautions were taken during manufacturing, and liquid wastes were poured down the sinks and toilets, contaminating the sewer lines. Other debris were disposed of on the grounds and adjacent properties. The primary threat at Lansdowne was to human health through breathing and ingesting radioactive particles and fumes. Actions: The radiation problem was recognized as early as 1963 when EPA attempted to stabilize the radioactivity. Later efforts included relocating residents, sealing the house, and establishing a security system. A sprinkler system was installed to extinguish fires which would expose the community to radioactive gases. The 1964 cleanup did not address contamination of the "107" half of the residence, the twin garages, the soil, sewer lines, or offsite contamination. EPA decided to eliminate any future threat of exposure by removing the duplex structure itself. Contaminated soil and sewer lines were also removed. Protecting the community required a major demolition and excavation action, and EPA gave special attention to the safety of residents and workers throughout the entire process of dismantling the building piece by piece. Removal of the contaminated material was carefully planned to prevent the release of radioactive gases. About 5,540 tons of contaminated rubble and soil were packed and sealed in approved containers and hauled away in 1,338 metal shipping boxes for disposal at waste disposal facilities. Six neighboring yards were also excavated and filled with clean soil, and two garages were rebuilt. Residents of Lansdowne expressed considerable interest in the site, and EPA coordinated a very active campaign to keep the community informed. Their approach was highly personal and included visiting neighboring homes to inform them of on-going progress at the site and keeping the local and State governments well-informed about activities related to the site. IRQ ------- Page Intentionally Blank 16O ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Leetown Pesticide, Region 3 Leetown, West Virginia Status: All remediation activities at Leetown Pesticide have been completed. The site is currently vacant. Results and Benefits: The removal and disposal of a contaminated building and its contents has mitigated all threats to human health and the environment. Future contamination of surrounding soils has also been prevented. Background: The Leetown Pesticide site was a 1-acre area that had been contaminated by the agricultural use of pesticides, pesticide disposal, and landfilling. The site was composed of three areas: the former pesticide pile area, the former pesticide mixing shed, and the Crimm Orchard packing shed. In 1975, pesticide-contaminated debris from a fire at a local chemical company were allegedly disposed at the former pesticide pile area. In June 1983,160 cubic yards of the debris were removed, leaving behind residual contamination. The pesticide mixing shed and the Crimm Orchard packing shed were used for formulation of pesticides used at the Jefferson Orchard and the Crimm Orchard, respectively. Contamination resulted from product drippage, spillage, and leaking containers. Evidence of hazardous waste activity at the site was first brought to the attention of EPA in 1981 by representatives of the National Fisheries Center. Soil and debris samples collected from 1981 to 1983 indicated elevated levels of DDT, DDD, DDE, and alpha, beta, delta, and gamma isomers of hexachlorocyclohexane (HCCH). The site was placed on the National Priorities List (NPL) on September 1, 1983. The site is located in a rural area in the extreme northeastern portion West Virginia. Portions of the watershed areas for the Bell Spring Run and the Blue and Gray Spring Run are on the site. Approximately 140 people live within a mile of the site. Land surrounding the site is predominantly used to pasture or forage crop production for dairy cattle operations Actions: Remedial activities consisted of the dismantling and offsite disposal of the Crimm Orchard packing shed. The remedial activities were initiated in February 1988 and completed in April of 1988. Debris that were in contact with spilled pesticide material were disposed of in a permitted hazardous waste landfill. Pesticide material was shipped offsite for incineration. Debris that did not come into contact with the pesticide material were placed in a solid waste landfiU. The ground underneath the shed was covered with topsoil, regraded, and hydroseeded to prevent soil erosion. Treatability studies conducted from May 1986 to April 1987 and April 1989 to January 1990 of the soil from the pesticide pile area indicated that treatment processes would not be able to reduce the levels of the contaminants to cleanup levels specified in the Record of Decision (ROD). As part of the second phase of the treatabiliry studies, EPA reviewed the cleanup levels to determine if they continued to be appropriate ------- Leetown Pesticide, Region 3 (Continued) to protect human health and the environment. An amendment to the ROD, effective March During this review, it was discovered that the 1992, selected a No Further Action remedy for methodology used in the initial risk assessment the site. completed in 1986 was no longer utilized by EPA. After using updated Risk Assessment Guidance The only remaining remediation activity is to and calculating a revised risk assessment, EPA properly abandon onsite monitoring wells. This determined that the contaminants of concern is scheduled to be completed in 1995. at the site did not pose an unacceptable risk. 162 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Lehigh Electric & Engineering Company, Region 3 Old Forge Borough, Pennsylvania Status: All remediation activities have been completed at the Lehigh Electric & Engineering Company. The site was removed from the National Priorities List (NPL) in 1986. The site is currently vacant and is located on the floodplain of the Lockawanne River. Results and Benefits: The removal of all surface debris, contaminated soils, and buildings has eliminated all the threats to human health and the environment. Future contamination of surrounding soils, ground water, and surface water has also been prevented. Background: The Leehigh Electric & Engineering Company site was a 5.5-acre area that was used as part of a coal processing facility. From the mid- 1970s until 1981, the site served as an electrical equipment repair and storage yard. About 4,000 transformers and capacitors were stored at the facility. Improper handling and disposal of dielectric fluids containing polychlorinated biphenyls (PCBs) resulted in soil and debris contamination. The site was placed on the NPL on September 1, 1983. The site is located in an agricultural and residential area. The Lackawanna River is located less than 1,000 feet downslope of the site. Approximately 150 people live within a residential area adjacent to the site. Actions: Remedial activities were divided into two stages: Phase I involving the removal of the transformers, transformer contents, and surface debris from the site; and Phase II involving the removal of contaminated soils and buildings from the site. EPA completed Phase I in 1982 and completed Phase II in 1984. The site was deleted from the NPL on March 7, 1986. ------- Page Intentionally Blank 164 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Matthews Electric Hating Site, Region 3 Roanoke, Virginia Status: Remedial actions have been completed, and the site was removed from the National Priorities List in 1988. The site was purchased in 1990 and is currently used for an auto repair garage. Results and Benefits: Residents of a rural area west of Salem, Virginia, now have a permanent, safe water supply due to a Superfund project that extended a municipal water supply. Hookup to the public water supply has increased property values. The market value of the Matthews site has also been restored since the site cleanup. Chromium levels in the ground water continue to attenuate. Background: From 1972 to 1977, the Matthews Electric Plating site housed a facility that plated automobile bumpers with a process using chromium and nickel. Chromium waste from the process was deposited into a sinkhole near the Big Hill Baptist Church. In 1975, a local resident smelled an odor from his tap water that he knew from his work experience to be associated with the electroplating process. Initial testing in 1976 revealed chromium contamination in three local drinking water wells. The highest chromium level was 11,000 mg/L, more than 200 times the safe drinking water standard (50 mg/L). Process wastes from the Matthews operation were found to result in contaminated ground water and onsite soil. Contaminants of concern were chromium, nickel, and cadmium. The electroplating facility went out of business in 1977, and the site was later used as a small- scale pig farming operation. Actions: In 1979, the owner of the property removed waste material, constructed diversion ditches, and covered parts of the area with clay. In 1986, chromium contamination in the most highly contaminated well was still above the safe drinking water standard. During discussion of cleanup alternatives, residents and county officials expressed concern that removal of onsite waste materials was not sufficient to alleviate their primary concern: contamination of local wells. Exposure to high levels of chromium can result in liver and kidney disorders. Providing an alternate water supply proved to be the most cost-effective remedy to address the community's concerns about chromium contamination in private wells. In 1986, 28 homes were connected to the Salem public water supply, removing the problem of water ------- Page Intentionally Blank 166 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEBT Mid-Atlantic Wood Preservers, Region 3 Harmans, Maryland Status: All near-term remediation construction activities were completed in August 1993. Long-term monitoring and operation and maintenance of the remedy are currently being implemented by the new owner, Gunther's Leasing Transport, Inc., and deed restrictions are in place. The site is being used for industrial and service purposes. Results and Benefits: The selected remedy has removed the threat to human health and the environment. Excavation of contaminated soils and the construction of an asphalt cap have eliminated the direct contact and ingestion hazards presented by previuosly exposed contaminants. Future contamination of surrounding soils and surface water has also been prevented. Background: The Mid-Atlantic Wood Preservers site was a 3- acre wood treatment facility that straddled Shipley Avenue in Hannans, Maryland. The facility consisted of two areas; the treatment yard, located to the east of Shipley Avenue, and the storage yard to the west. The facility pressure treated dimensional lumber in a housed processing plant from 1974 to 1993. The lumber was then moved to a concrete drip pad and left to dry. In 1978, water in a shallow residential well downgradient from the site was found to be contaminated with high levels of hexavalent chromium. The contamination was the result of an overflow pipe from a chromate copper arsenate (CCA) tank used in the treatment yard of the site. As a result, 26 cubic yards of contaminated soil were removed from the site; the facility's product storage system was modified to prevent future overflows; and a concrete drainage pad was installed to collect CCA drippings. A site investigation in January 1983 revealed that the levels of arsenic and chromium in the ground water still exceeded drinking water standards. The Mid-Atlantic Wood Preservers site was placed on the National Priorities List (NPL) in 1986. Land use in the area is predominantly industrial and residential. A wetland area, traversed by the Stony Run Creek, lies 600 feet west of the site. Actions: A remedial investigation confirmed the presence of arsenic, chromium, and copper in the onsite soils and slightly elevated levels of chromium in the ground water. Remediation actions were conducted in two phases; near-term actions and long-term actions. Near-term actions consisted of: excavating, stabilizing, and disposing 300 cubic yards of contaminated soils with arsenic concentrations greater than 1,000 mg/kg offsite; capping portions of the treatment yard that were not covered by the treatment plant or the asphalt-paved parking area; and paving contaminated soil areas in the storage yard where arsenic concentrations exceeded 10 ------- Mid-Atlantic Wood Preservers* Region 3 (Continued) mg/kg. Near-term actions were implemented between June and August 1993. Long-term actions consist of: long-term monitoring of surface water and ground water; operating and maintaining the asphalt cap; and enacting deed restrictions that will limit the future land use. In January 1994 a Prospective Purchaser Agreement between EPA and Gunther's Leasing Transport, Inc. was finalized. The long-term actions are being implemented by the new owner. Deed restrictions have been enacted. 168 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Middletown Road Dump Site, Region 3 Annapolis, Maryland Status: Remediation activities at the Middletown Road Dump have been completed. The site is now a closed landfill. The site was deleted from the National Priorities List (NPL) in 1988. Results and Benefits: Through emergency removal of hazardous wastes and evaluations of the extent of the contamination at the Middletown Dump site, EPA was able to successfully clean the site and achieve soE cleanup goals. The site no longer poses a threat to human health or the environment. Future contamination of the soil, ground water, and surface water has been prevented. Background: The Middletown Dump site is a 10-15-acre dump that was privately owned and operated until 1981. For several decades, the facility accepted rubble, construction debris, and some industrial and municipal wastes without proper State permits. In 1981, 40 drums and four dumpster loads of suspected hazardous waste were discovered on the site. The owner was forced to initiate cleanup when a drum-crushing accident spread contaminants over a 1/2 acre of the site. The State subsequently shut the dump down because of State water pollution violations and hazardous waste laws. Soil samples of the site indicated heavy metal contamination, including lead, arsenic, chromium, zinc, cyanide, barium, and cadmium. Approximately 5,000 people live within 1 mile of the site. A stream flowing from the site enters the Whitehall Creek, which is used for recreational purposes. Actions: Remedial actions were addressed in two stages: emergency actions and long-term remediation. Emergency actions consisted of: sampling soil to confirm contaminant removal had been adequate; installing 6 ground-water monitoring wells; sampling and testing drums; moving 1-million tires elsewhere onsite to expedite subsurface investigation; and removing 68 drums, 70 contaminated tires, 5 gallons of marine paint, and 610 tons of contaminated soil. Long-term remediation consisted of an intensive investigation of site conditions during and after emergency actions. The study evaluated water, soil, and sediment quality in the vicinity of the site and revealed that there was no longer a threat to human health. The site was deleted from the NPL in April 1988. ------- Page Intentionally Blank 170 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET New Castle Spill Site. Region 3 New Castle, Delaware Status: Monitoring of the ground water, surface water, and sediments at the New Castle Spill site is ongoing. Institutional restrictions on placement of ground-water wells in the vicinity of the site are in effect. The site is currently fenced and vacant. Results and Benefits: By monitoring the ground water, surface water, and sediments, and by Umiting the future use of the ground water until the cleanup levels have been reached, the potential for exposure to hazardous materials has been reduced. Surface cleanup levels have been achieved. Future contamination of the ground water, surface water, and surrounding soils has also been prevented. Background: The 6-acre New Castle Spill site consists of land from the former Witco Corporation manufacturing plant, the New Castle Board of Water and Light (NCBWL), and an adjacent marsh. The Witco Corporation processed materials used in the production of plastic foam. Drums of prepolymer feedstocks and spent solvents were stored on the southern boundary of the property, adjacent to the NCBWL facility. In 1977, employees of NCBWL noticed areas of dead grass on the property near the drum storage area. Subsequent investigation revealed levels of tris (2-chloropropyl) phosphate (tris) in the soil and polychlorinated biphenyls (PCBs), trichloroethylene fTCE), and tetrachloroethylene (PCE) in the Columbia Aquifer, a shallow aquifer underneath the site. Under the direction of the Delaware Department of Natural Resources and Environmental Control, NCBWL pumped the ground water from the Columbia Aquifer and discharged it to the local marsh area. The site was placed on the National Priorities List (NPL) in September 1983. The site is surrounded by industrial and residential establishments. Approximately 5,500 people live within 3 miles of the site. The marsh adjacent to the site consists of emergent and forested wetlands that support diverse flora and fauna. Actions: Remedial activities consist of: quarterly monitoring of the Columbia Aquifer to ensure the effectiveness of natural attenuation; annual monitoring of a deeper aquifer (Potomac Aquifer) to ensure contamination has not occured; annual monitoring of the marsh surface water and sediments; evaluating and biomonitoring testing if any trigger levels are reached in the marsh surface water or sediments; instituting restrictions on the placement of wells in the Columbia Aquifer in the vicinity of the site; and the instituting 5-year reviews. Monitoring and institutional controls are presently ongoing and ------- Page Intentionally Blank 172 ------- SUPERFUND SITE COMPLETED NPL SITE PACT SHEET New Castle Steel, Region 3 New Castle, Delaware Status: The 'selected remedy for the New Castle Steel site was "No Action." The site was deleted from the National Priorities List (NPL) in 1989 and is currently an inactive landfill. Results and Benefits: An endangennent assessment conducted in 1987 concluded that the site did not pose a significant threat to human health or the environment. Background: The New Castle Steel site is a 3-acre landfill used by the Deemer Steel Company from 1907 to 1980 to dispose of foundry sands, slag, coke, iron oxide scale, baghouse dust, and metal scrap. The site consists of two disposal areas separated by a drainage canal that runs into the Delaware River. With the adoption of the Delaware Regulations Governing Hazardous Waste in November 1980, electric furnace dust and any mixture of this material with solid waste were defined as RCRA hazardous waste (K061). In December 1980, the electric furnace dust was found to be charcteristically hazardous for cadmium, chromium, and lead. The site was placed on the NPL in 1982. Actions: The Deemer Steel Company contracted a consultant to conduct a hydrogeological study of the site, and in 1984, the completed study indicated that the contamination from the site showed no effect on the aquifer used for drinking water in New Castle. Soil and surface water samples indicated low levels of heavy metal contamination, including arsenic, chromium, lead, cadmium, and nickel. However, an EPA endangennent assessment completed in 1987 concluded that there was no significant threat to human health or the environment. Based on these facts, EPA chose no action as the selected remedy for this site. The New Castle Steel site was deleted from the NPL in March 1989. ------- Page Intentionally Blank 174 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Presque Isle, Region 3 Erie, Pennsylvania Status: All remediation activities at Presque Isle have been completed. The site was removed from the National Priorities List (NPL) in 1988. Results and Benefits: Plugging the discharging well has eliminated the threats to human health and the environment. Future contamination of surrounding air, soils, ground water, and surface water has also been prevented. Background: The Presque Isle site is located on the Presque Isle State Park peninsula. In the early 1970s, the Erie County Health Department discovered a seep discharging a noxious hydrogen sulfide- bearing black liquid near Beach No. 7. The discharge continued until the early 1980s. Investigations by the Pennsylvania Department of Environmental Resources (PADER) revealed that the source of the discharge was an unplugged, abandoned natural gas well that intercepted the Bass Island Formation. It was unclear whether the fluid discharging from the Bass Island Formation was a natural brine or was related to the deep well injection of wastes by the Hammermill Paper Company, located near the State Park. The Hammer-mill Paper Company operated three underground injection wells between 1964 and 1971, injecting 1.1-billion gallons of neutral sulfite pulping liquor waste into the Bass Island Formation. However, because the seep's existence prior to the documented complaints in the early 1970s could not be established, EPA did not pursue the Hammermill Paper Company as a Potentially Responsible Party. Presque Isle is a public recreational area used for picnicking, swimming, and fishing. The park contains an ecological reservation and is the natural habitat for a variety of animals and plant life. Four million visit the park annually. Actions: In 1982, the well was plugged with cement down to 900 feet by the PADER, sealing the Bass Island formation. The site was placed on the NPL in 1983 because of the possibility of releases from other improperly plugged oil and gas wells in the surrounding area. The site was deleted from the NPL on February 13, 1988. ------- Page Intentionally Blank 176 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Reeser's Landfill, Region 3 Upper Macungie Township, Pennsylvania Status: A "No Action" Record of Decision (ROD) was signed on March 30, 1989. A review of the area ground water was conducted in March 1993. The site was deleted from the National Priorities List (NPL) on May 31,1990. The site is currently a closed 15-acre landfill. Results and Benefits: No significant threats to human health nor the environment were found to exist. Background: Reeser's Landfill site was a 15-acre, inactive, unlined dump. The lessee, Reeser's Hauling Service, never received a State license to operate a disposal facility at the site. The State ordered the closure of the landfill in 1979 and 1981. These closure orders were appealed by the owner. Operations at the site ceased in 1980, and the site was placed on the NPL in July 1987. The site is located in a rural area. Homes in the immediate area rely on private wells for drinking water. Public wells serve an estimated 3,400 people and are located approximately 2,000 feet from the site. Rainwater runoff from the landfill drains to Iron Run, a tributary to the Lehigh River. Actions: Between 1987 and 1989, EPA undertook an intensive study of the ground-water contamination and the conditions at the site. The study showed conclusively that the landfill was not contaminating the ground water. EPA found no evidence of hazardous waste dumping nor any adverse effects on human health or future land use plans. Based on the results of the study, EPA determined that no cleanup actions were required at the site to address the ground-water contamination. In 1989, EPA selected a No Action alternative for the site. However, EPA stated that a review of area ground water should be conducted within 5 years. The site was removed from the NPL in May 1990. ------- Page Intentionally Blank 178 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Route 94O Drum Dump, Region 3 Pocono Summit, Pennsylvania Status: All remediation activities at the Route 940 Drum Dump have been completed. Ground-water monitoring will continue on an annual basis until 1997, when an evaluation will be performed to determine future monitoring requirements. The site is currently vacant. Results and Benefits: The removal of contaminated drums and debris and the treatment of contaminated soils have eliminated any threats to human health and the environment, as well as achieving surface cleanup goals. Future contamination of the surrounding soil and ground water has also been prevented. Background: The Route 940 Drum Dump site was a 2.5-acre fenced clearing where approximately 600 drums of unknown contents from an unknown source were stored. In 1978, the previous owner of the site, J.E.M. Partnership, arranged for the removal of the drums at the request of the owner, Landmark International. In 1983, the Pennsylvania Department of Environmental Resources (PADER) learned that some drums may have been buried on the site and that the contents of some drums may have been spilled on the ground. PADER, with assistance from EPA, initiated an investigation of the site. In early 1983, PADER, EPA, and Landmark International carried out an emergency removal of buried drums, debris, and approximately 300 tons of contaminated soil. Contaminated drums, debris, and soil were disposed of at an approved facility. The site was placed on the National Priorities List (NPL) in July 1987. The site is located adjacent to commercial, rural, and residential areas. Approximately 4,200 people depend on private wells and small public wells within 3 miles of the site as their sole source of drinking water. Indian River Creek, about a mile from the site, is used for fishing. Recreational fishing and hunting occur in the area surrounding the site. Actions: In January 1987, BCM, a consultant working for Landmark International, excavated and stockpiled an additional 4,000 cubic yards of contaminated soil. In April 1987, the stockpiled soil was shredded, exposed to air for 24 hours, and returned to the ground. Samples of the shredded soil showed a 98 percent reduction of contaminants. In 1989, EPA conducted a remedial investigation of the site, hi 1992, based on the results of the remedial investigation, EPA Region 3 chose a No Action alternative with ground-water monitoring as the recommended course of action for the site. The site is currently awaiting deletion from the NPL. ------- Page Intentionally Blank 180 ------- Su UND SITE COMPLETED NPL SITE FACT SHEET Sealand Ltd., Region 3 Mt. Pleasant, Delaware Status: The selected remedy for the Sealand Limited site was "No Action." EPA will conduct a 5-year review in 1996 to ensure the selected remedy remains protective of human health and the environment. Results and Benefits: The removal of coal tars, contaminated drums, tanks, and solid waste has eliminated any threats to human health and the environment. Background: The Sealand Limited site is located on a narrow strip of land bordered to the west by an active Conrail freight line. In August 1982, the property owner, Conrail, leased the property to Sealand Limited for waste oil recycling. No. 4 and No. 6 oil, oil/gas tar, off-specification creosote, ink oil waste, and oil cuff (a mixture of oil and water) were accepted for recycling. Sealand Limited abandoned the site in August 1983, leaving behind 21 steel hoppers, a 10,000-gallon wooden storage tank, 300 55-gallon steel drums, a boiler house, and various mixing chambers and pressure vessels. fa the fall of 1983, the Delaware Department of Natural Resources and Environmental Control (DNREC) conducted a routine inspection of the site and noted leaking drums and tanks. Samples from the drums and surrounding soil indicated the presence of pofynudear aromatic organic compounds, creosols, solvents, and other organic compounds. In December 1983, EPA initiated an Emergency Removal Action to remove 240,000 gallons of coal tar, 320 drums of tar-like substances, and 122 cubic yards of solid waste from the site. Also, an additional 239 drums of off-specification product were removed from the site. Storage tanks were cleaned and moved. The tank and drum storage area and a trench constructed to minimize horizontal movement of contaminants were capped with clay and covered with 6 inches of topsoil. Six ground-water monitoring wells were also installed. The site was placed on the National Priorities List (NPL) in August 1990. The site is located adjacent to commercial, light industrial, and residential areas. Ground water is used as a source for domestic water supplies. Actions: In 1988, 15 Potentially Responsible Parties (PRPs) agreed to conduct a remedial investigation/feasibility study (RI/FS) at the Sealand Limited site. Low levels of semivolatile organic compounds were detected in soil samples taken below the clay cap. No contaminants of concern were detected in the onsite and offsite wells, including residential wells. As a result, EPA selected a remedy of No Action for the site. EPA will conduct a 5-year review in 1996 to ensure that the selected remedy remains protective of human health and the environment. ------- Page Intentionally Blank 182 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Suffolk City Landfill, Region 3 Suffolk City, Virginia Status: The selected remedy for the Suffolk City Landfill was "No Action." Ground-water monitoring will be performed to ensure the protectiveness to human health and the environment. The site has been deleted from the National Priorities List (NPL) and is currently a closed 67-acre landfill. Results and Benefits: EPA concluded that the site poses a risk to human health only in the event that contaminated ground water existing within certain areas of the site is consumed. No consumption of this ground water is occurring at this time and none is expected to occur in the future. Surface water sampling in the nearby streams indicates that the contaminant levels are protective of aquatic life. EPA concluded that the No Action remedy is protective of human health and the environment and that further remedial action under CERCLA is not warranted. Background: The 67-acre Suffolk City Landfill was owned and operated by the City of Suffolk from 1967 to 1985. The unlined landfill accepted primarily municipal solid waste. In 1970, however, the Dixie Guano Company disposed of 27 tons of chemicals believed to be pesticides in a portion of the landfill. The pesticides were disposed of in a lime-lined trench, covered with more lime, and then capped with 2 feet of soil. In 1989, the City covered the landfill with an impermeable tarpaulin plastic liner and posted a warning sign. In 1989, the City implemented a temporary leachate collection system (TLCS) and conducted a remedial investigation/feasibility study (RI/FS). Sampling from the RI/FS indicated that the ground water, soil, and liquids contained in retention basins were contaminated with pesticides. The site was placed on the NPL in February 1990. The site is located in a rural and agricultural area. Approximately 2,500 people obtain drinking water from private wells located within 3 miles of the site. Surface runoff from the site discharges to two unnamed tributaries to the Pocosin Swamp. Actions: A No Action remedy was selected for the site. Ground-water monitoring will continue to be performed to ensure that the remedy continues to be protective of human health and the environment. taa ------- Page Intentionally Blank 184 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Taylor Borough Dump, Region 3 Taylor, Pennsylvania Status: Remediation activities at the Taylor Borough Dump have been completed. Operation and maintenance of the soil cover and the security fence, as well as ground-water and surface water monitoring, are ongoing. The site is currently a 125-acre capped landfill. Results and Benefits: The removal of contaminated drums, soil, and debris has eliminated all threats to human health and the environment. Future contamination of the surrounding soil, ground water, and surface water has also been prevented. Background: The 125-acre Taylor Borough Dump was a former underground strip mine converted into a municipal dump. The landfill operated from 1964 to 1968. After landfill operations ceased, drummed industrial wastes were found on site. M 1981, EPA and the Pennsylvania Department of Environmental Resources (PADER) conducted various field inspections. The majority of the surface drums were concentrated in six areas. Many drums were open, punctured with bullet holes, and the contents spilled on the ground. In 1983, a fire occurred on the landfill. Mine spoil was pushed over the burning areas to extinguish the fire. As a result, some drums were partially buried. EPA instituted an Immediate Removal Action in November 1983 and removed 1,200 drums from the site. The site was placed on the National Priorities List (NPL) in September 1984. The site is located near a residential area and a community park. Approximately 1,000 people live within a 1-mile radius of the site. Residents obtain drinking water from a surface water supply that does not receive runoff from the site. Actions: Remedial actions consisted of: removing and disposing of 125 crushed and intact drums at an offsite facility; collecting and treating contaminated surface water from two onsite ponds; excavating contaminated soils and sediments to an offsite facility; backfilling excavated areas and covering backfilled areas with a 24-inch soil cover; installing a chain-link fence around the soil covered areas; monitoring ground water and surface water; and maintaining the soil cover. Remedial activities were completed in 1988. Operation and maintenance of the soil cover and the security fence, as well as ground-water and surface water monitoring, are ongoing. ------- Page Intentionally Blank 186 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Voortman Farm, Region 3 Upper Saucon Township, Pennsylvania Status: All remediation activities at the Voortman Farm have been completed. The site was deleted from the National Priorities List (NPL) in June 1989. The site is currently vacant. Results and Benefits: The removal of battery casings, contaminated soil, and debris, has eliminated all threats to human health and the environment. Future contamination of the ground water has also been prevented. Background: The Voortman Farm site consisted of a sinkhole, 48 feet wide by 100 feet deep, located on the 43-acre Voortman Farm. The sinkhole was formed by the dissolving of the dolomite and limestone substratum by the aquifer. In late 1979 and early 1980, an estimated 10,000 empty battery casings were dumped into the sinkhole. Samples taken from the sinkhole in 1983 showed elevated concentrations of heavy metals. Nearby domestic wells revealed heavy metal concentrations above maximum permissible limits. The site was placed on the NPL in September 1983. The area surrounding the site is primarily agricultural. About 9,700 people live in the Upper Saucon Township. Actions: In September 1986, a fire erupted in the sinkhole. In October 1986, the battery casings and 230 cubic yards of soil and wastes were removed from the site in an emergency action and transported to an authorized landfill. Studies conducted in 1987 and 1988 demonstrated that the 1986 cleanup had been effective. EPA selected the remedy "No Action, with continued monitoring." The site was deleted from the NPL in June 1989. ------- Page Intentionally Blank 188 ------- SUPERFUND SITE COMPLETED NFL SITE FACT SHEET Wade (ABBS), Region 3 Chester, Pennsylvania Status: All remediation activities at Wade (ABM) have been completed. Maintenance of the site cap and the security fence will be performed on an "as needed" basis. Annual ground-water monitoring is being conducted by the State. The site was deleted from the National Priorities List (NPL) in March 1989. The site is currently vacant. Results and Benefits: Removing the contaminated soil and debris and regrading the site have mitigated threats to human health and the environment. Future contamination of the soil and ground water has also been prevented. Background: The Wade ABM site was a 3-acre area that operated as a rubber recycling facility from 1950 to the early 1970s. In the mid-1970s the site was converted into an illegal industrial waste storage and disposal facility. Drums of waste were stored on site or emptied onto the ground or into trenches. Such practices resulted in soil and ground- water contamination with elevated levels of heavymetals, polychlorinated biphenyls (PCBs), and volatile organic compounds (VOCs). In 1978, a severe fire occurred at the site, destroying much of the drummed waste stockpiled on site. In 1979 and 1980, the Pennsylvania Department of Environmental Resources (PADER) conducted an emergency cleanup of the site. A chain-link fence was constructed around the site, 2,600 drums and 5 tankers containing waste were removed and disposed of, and drums of PCB waste were overpacked and secured. In September 1981, EPA conducted a second emergency cleanup, removing and disposing of all but 500 drums of PCB waste. The site was placed on the NPL in September 1983. Actions: Remedial activities consisted of: removing and disposing of tires, tank trucks, waste piles, underground storage tanks, and contaminated soil; demolishing and removing the buildings that remained on site; filling and regrading the property; covering the property with topsoil and a seed cap; maintaining the cap; and ground water monitoring. PADER managed the site cleanup, which was completed in 1987. The site was removed from the NPL in March 1989. ------- Page Intentionally Blank 190 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Westline Site, Region 3 Westline, McKean County, Pennsylvania Status: As a result of remedial action, removal of the tar deposits was completed in 1990; soon thereafter, the excavated areas were backfilled and revegetated. The area is open for unlimited surface reuse. Deed restrictions are in place to prohibit the construction of new drinking water wells in the area. The site is currently used for seasonal recreation, and a restaurant facility operates onsite. Results and Benefits: Superfund cleanup has alleviated contamination from a turn-of-the-century chemical plant in the rural town of Westline. One former tar pit area is now an open field used for gatherings of cross- country skiers. The local hotel, bar, and restaurant stand on the site of the former Day Chemical Company office. As a result of the cleanup efforts, the previously contaminated areas are now safe for unlimited surface use. Background: The town of Westline is situated along the Kinzua Creek and is completely surrounded by the Allegheny National Forest. From 1901 until a fire and explosion caused its closure in 1952, a chemical company plant operated in Westline to convert lumber to charcoal, methanol, and acetic acid. The designated Superfund site resulting from the chemical company operation comprises most of Westline and its adjacent streams, including Kinzua Creek and Turnip Run. The chemical plant foundation, demolition debris, and a tar-like production waste containing high levels of polycyclic aromatic hydrocarbons (PAHs) and various phenolic compounds were left behind by the previous facility operators. While the plant operated, the tarry waste accumulated in onsite lagoons, and small canals allowed the semi-liquid material to migrate downhill towards Kinzua Creek. Eventually the waste tar deposits were dispersed over a large area, some up to 9 feet thick. A 1,500-square-foot, 6-inch-thick deposit is presently located behind the Westline Church. Actions: In 1983, the property owners erected a fence around the property and posted warning signs. EPA also conducted two emergency actions at the site. Workers capped the largest tar deposit with clay, and covered and graded the area. Cracks soon appeared in the cover and liquids began leaching from the area. At this point, EPA excavated and removed some 2,000 tons of tarry waste and contaminated soil from the ------- Page Intentionally Blank 192 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Wildcat , Region 3 Dover, Delaware Status: All remediation activities at the Wildcat Landfill have been completed. Long-term maintenance and monitoring of the landfill cover, the ground water, the filled Northwest Pond, and the replacement Racetrack Pond are ongoing. The site is a closed 44-acre landfill. Results and Benefits: Capping the contaminated soils and removing the contaminated drums have eliminated the threat to human health and the environment, The creation of a new pond on site has increased the ecological value of the site. Future contamination of the surface water has also been prevented. Background: The Wildcat Landfill site is a 44-acre landfill situated on an 83-acre parcel of land along the west bank of the St. Jones River. The privately- owned landfill accepted municipal and industrial waste from 1962 to 1973, when it was closed under a State order for numerous violations of a State permit. Liquid and solid wastes were routinely mixed together and emptied onto the ground. Empty drums were recycled, and waste- containing drums were often left uncovered. Samples taken from the site revealed that the ground water was contaminated with trace metals and organics and that the soil and surface water from an onsite pond (Northwest Pond) were contaminated with polychlorinated biphenyts (PCBs) and chlordane. The site was added to the National Priorities List (NPL) in September 1983. The area surrounding the site is used for recreational and residential activities. The Dover Air Force Base NPL site is approximately 1/2 mile east of the landfill. Local residents rely on ground water for drinking water supplies and are served by public or private wells. Actions: Remedial activities at the site were divided into two operable units; Operable Unit 1 and Operable Unit 2. Remedial activities at OU1 consisted of: covering exposed wastes and contaminated soil on the landfiE; disposing of contaminated drums off site; installing an additional ground-water monitoring well; monitoring a shallow ground-water aquifer; replacing shallow water supply wells adjacent to the site; and implementing institutional controls (e.g., a ground water management zone, property restrictions, and warning signs). Remedial activities at OU1 were completed by mid-September 1992. Remedial activities at OU2 consisted of; draining and backfilling the Northwest Pond; creating a replacement pond (Racetrack Pond) on the southeast corner of the site; installing a monitoring well upgradient of Racetrack Pond; and implementing institutional controls to ensure the integrity of the new pond and the filled Northwest Pond. Remedial activities at OU2 were completed by mid-September 1992. Long-term maintenance and monitoring of the landfill cover, the ground water, the filled Northwest Pond, and Racetrack Pond are ongoing. 1O4 ------- Page Intentionally Blank 194 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Action Manufacturing Company (Amcom) Site, Regio Chester County, Pennsylvania Status: All planned removal actions have been completed at this 200-acre working munitions facility that produces fuses, lead, and detonating devices. Results and Benefits: EPA, in conjunction with other Federal and State agencies, safely removed the threat of stockpiled, off-specification munitions and waste generated from munition fabrication processes. The threat of a catastrophic explosion due to accidental ignition was eliminated. Controlled detonations and burnings were carefully planned and monitored and had no adverse effects. Background: The site is located in rural Chester County, Pennsylvania. An adjacent river, Knight Run, and several of its tributaries transect the site. This area is in an agricultural community of farming and dairy production. The Action Manufacturing Company (Amcom) loads, assembles, packs, and tests explosives and pyrotechnic compounds and devices, as well as completed fuses, for numerous military applications. Explosive materials are stored in onsite magazines, washed and processed onsite, and incorporated into the final military-grade products for packaging and shipping. Since 1974, wastestreams generated by the process have been disposed of onsite, primarily by open burning in surface pits, onsite detonation, and incineration. Due to these improper disposal practices as witnessed during a site investigation in 1992, the State would not permit further burning or detonation of wastes. Because of the stockpiling of explosive wastes, past use of detonation fields, the potential for contamination of the drinking water source, and the presence of unstable wastes in the bum pits, EPA and the State determined in February 1992 that a removal action was necessary to mitigate these problems. Actions: During the removal, onsite thermal treatment was used to neutralize the explosive wastes. To assuage local concerns, EPA and the State set up seismographic equipment and performed tests to document whether such an explosive force would have the potential to shake loose foundation footings in area residential neighborhoods. Three types of thermal treatment were used: burning of material in burn pits and burn cages, heating of detonators until they exploded in a oil- burning "popping* kettle, and open detonation in the detonation field. Another method used was transportation of the wastes by the U.S. Army to an Army facility. Using all the methods, approximately 100 pounds of primary explosives and 1,600 pounds of secondary explosives were disposed of. 10* ------- Page Intentionally Blank 196 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET American Street Tannery Site, Region 3 Philadelphia, Pennsylvania Status: Removal actions are complete, and this site has now been declared closed by the On-Scene Coordinator because no further work is indicated. The lot is now ready for redevelopment. Benefits and Results: The first removal action alleviated a substantial threat to public health and welfare and the environment based upon the threat of hazardous substances in drums, barrels, tanks, and bulk storage containers. Also, a threat of fire or explosion was posed by these materials. The second removal action alleviated the threat of polychlorinated biphenyl (PCB) contamination to surrounding residents. Three drums of PCB- contaminated fluid, 12 drums of contaminated debris and wash kerosene, 6 rinsed and empty transformers, and 10 cubic yards of contaminated concrete flooring were removed. These successful operations alleviated potential threats to the surrounding densely populated inner-city neighborhood. The buildings have been removed, and the debris disposed of property. The site has been sampled, and results indicated that no PCB contamination remained at the site. The potential for redevelopment on this one-city-block parcel now exists. Background: The American Street Tannery was located on approximately one city block bordered by American, George, Wildey, and Bodine Streets in the Northern Liberties section of Philadelphia, Pennsylvania. A complex of five buildings housed several different tanning companies until 1986 when operations at the tannery were abandoned. Row houses and light industry surrounded the area. Bordering the site on the north was a carriage company that kept a number of horses. Actions: Two separate removal actions took place at this site. The initial removal action started August 6, 1987, and was completed on July 7, 1988. This action identified, analyzed, and disposed of many hazardous materials stored in various types of containers throughout the structure. During the course of removal action, it was found that the following materials had been abandoned on the premises: sulfuric acid, tanning acids, unknown substances, in drums, leather trimmings that were contaminated with chromium, ethyl ether and picric acid (both shock-sensitive materials), and PCBs. EPA CERCLA Removal Enforcement contacted all of the tanning companies that had operated at this location. Each was requested to provide assistance with the removal action, but none was able to contribute to site stabilization or waste removal efforts. EPA enforcement personnel, however, coordinated the removal of usable tannery chemicals including dyes, emulsifiers, and soaps for reuse in the tanning industry. Be reusing these products, the additional cost of having the products disposed of as hazardous materials was saved. This action was deemed completed by the OSC in July 1988. ------- American Street Tannery Site, Region 3 (Continued) On July 7, 1990, a. fire severely damaged the estimated 2 quarts of PCB-contaminated fluid buildings at the site, resulting in the decision had leaked from the transformer casings onto by the City of Philadelphia officials to demolish the sidewalk. Investigation by EPA, the technical the structures. Upon inspection by demolition assistance team, and the Philadelphia Fire crews, six transformers were discovered in a Department revealed that the PCB- formerly secured transformer/electrical contaminated material posed a threat to substation room, two of which contained PCB- surrounding residents. EPA removed and contaminated fluid. disposed of the transformers and associated PCB-contaminated materials in an approved On July 26,1990, vandals, in an effort to salvage manner. The second removal action was copper from utility transformers, spilled PCB- completed on July 6, 1990. contaminated oils on the sidewalk at the intersection of George and Bodine Streets. An 198 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Army Creek Landfill, Region 3 New Castle, Delaware Status: EPA is currently supervising remedial activities being performed by responsible parties at this site. Waste contributors began building a multilayer cap over Army Creek Landfill in the spring of 1992. In addition, workers have started construction of a water treatment plant to decontaminate discharge from the recovery wells. Results and Benefits: By promptly addressing the immediate risk of ground-water contamination, the Superfund program reduced the threat to drinking water supplies posed by the Army Creek Landfill. EPA also responded to immediate ecological concerns in the nearby wetlands area by orchestrating comprehensive cleanup actions for the site. EPA successfully concluded negotiations with 18 parties responsible for the contaminants at the site. Under the terms of the settlement, the waste contributors will design and conduct a $25 million cleanup, reimburse EPA for $1 million of previously incurred costs, and fund future EPA oversight costs, estimated at another $1 million. This settlement provides recovery of approximately 71 percent of past response costs. In addition, Federal and State natural resource trustees have received $800,000 to help counteract damages to wetlands and aquatic life. Although construction activities are not scheduled to be completed until the spring of 1995, the potential for contaminant release at this site has already been eliminated by early response actions. Background; The Army Creek Landfill, a former sand and gravel quarry, lies approximately 2 miles southwest of New Castle, Delaware. The abandoned landfill is bordered by Army Creek, which discharges into the Delaware River approximately 1 mile east of the site. A residential community and a public supply well field are located less than 1 mile south of the site. An estimated 130,000 people live within 3 miles of the site and rely on ground water for household use. Next to the landfill is the Delaware Sand and Gravel Landfill, another Superfund site. New Castle County owned and operated the 47-acre Army Creek Landfill between 1960 and 1968, when it was filled to capacity with 2 million cubic yards of industrial and municipal wastes. A variety of chemicals also were discarded in the landfill. Volatile organic compounds (VOCs) and heavy metals such as chromium, mercury, and zinc have contaminated the ground water. The surface water is also degraded. Actions: In 1983, this site was included on the first National Priorities List (NPL). At this time, EPA conducted an in-depth analysis of the nature and extent of contamination at the site. The county aided in the initial steps for cleanup by providing an analysis of potential cleanup alternatives, including corrective measures for the site. Their analysis was completed in September 1986. ------- Army Creek Landfill, Region 3 (Continued) In 1986, EPA chose a remedy to control the source of ground-water contamination. The first phase involved installing a protective cap to prevent rainfall from infiltrating into and through the hazardous waste. A recovery well network previously installed by the county to capture contaminated ground water continued operations. These recovery weEs also were used to monitor the effectiveness of the cap over a 5- year period. In February 1990, EPA evaluated Army Creek and Army Creek Pond. Resulting data indicated elevated concentrations of heavy metals. In June 1990, EPA selected a cleanup remedy for the surface water, which involved construction of a water treatment plant. The treatment plant purifies the water brought up by the recovery wells prior to discharge into Army Creek. EPA plans to undertake a long-term monitoring program of ground water, surface water, sediments, and associated wetlands affected by the site. Following extensive negotiations with EPA, the waste contributors began construction of the selected remedies in the spring of 1992. 200 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Atwell Mountain Drum Site, Region 3 McDowell County, West Virginia Status; This emergency removal was effectively complete within 5 days of EPA's being notified. Traces of the contamination have been removed, and the improperly disposed wastes at this site no longer pose a threat to the surrounding population or the environment. Results and Benefits: Extremely toxic cyanides were prevented from spreading further in the environment at this remote mountain-top site. Exposure routes would have included air (by inhalation of hydrogen cyanide), soil, and surface and ground water, as well as direct contact with the improperly disposed wastes. Risks to both human health and the local ecosystems were quickly removed. Background: This site is in an isolated location that appears to be infrequently traveled, a few hundred yards from a well-kept church and cemetery and over 2 miles from a paved highway. The nearest resident lives less than 1/2-mile from the site. This wooded mountain-top location near the end of a steep gravel road was previously used as an unauthorized trash dumping ground. Actions: On August 30,1987, staff from the West Virginia Department of Natural Resources (WVDNR) responded to a local resident's complaint that several drums had been abandoned along a rural road near Atwell, West Virginia. EPA was notified after WVDNR inspectors noted that two of three drums labeled "Poisonous—Contact with Acids Emanates Poisonous Gases" were open and had spilled a white, granular solid substance onto the ground. Four more of the 16 drums were labeled "Solid Waste." EPA conducted a preliminary air analysis in this area the next day and found the presence of cyanide, an extremely poisonous, highly water-soluble substance. The following day, EPA contractors arrived to perform the emergency removal work using hand tools. During the next 2 days, they overpacked the drums for safe, temporary storage and filled an additional seven drums with contaminated soil for disposal. These drums were stored at the site while arrangements were made for their transportation and disposal at the proper facility. All drums have been properly and permanently disposed of. ------- Page Intentionally Blank 202 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Avtez Fibers Site, Region 3 Warren County, Virginia Status: The initial threats at this site have been either removed or stabilized, and the removal work is completed. This site was placed on the National Priorities List (NPL) in 1986. Work is in progress under Superfund's remedial program to methodically inspect and assess the remaining long-term threats. With the readily identified threats stabilized by the removal action, work is now progressing to fully characterize the remaining hazardous materials onsite including drums, sewers, and bottoms of the collecting ponds. Results and Benefits: All stormwater runoff and other sewers at the facility were diverted to flow through the revamped treatment plant prior to discharge into the Shenandoah River. The Shenandoah is a tributary to the Potomac River, and provides drinking water to several towns. This action has mitigated contamination of the river by polychlorinated biphenyls (PCBs) from the site. The immediate removal action was also responsible for stabilization of the site, preventing potential major catastrophe in nearby Front Royal. Large quantities of highly reactive process chemicals were removed from the site. Background: The Avtex Fibers site was a synthetic manufacturing facility that had produced rayon fibers since 1940. The facility is located on a 440-acre site that lies along the South Fork of the Shenandoah River at the northern end of the Blue Ridge Mountains. The plant had been the sole supplier of carbonizable rayon fibers used to form rocket nozzles for NASA's space shuttle. The plant became the subject of environmental concern by the community over discharges of PCBs into the Shenandoah River, as well as violations of other environmental standards. PCBs are considered toxic to aquatic life and a possible human carcinogen. The facility used the viscose method for rayon production and placed process wastes in 18 unlined basins on the site. Increasing concern about the integrity of these basins and other discharges led the Commonwealth of Virginia to pursue legal recourse against Avtex under its water discharge authority. On November 11, 1989, the plant was notified that the Virginia Water Control Board had refused to renew its water discharge permits. Avtex informed the State that the plant was in the process of being shut down. After the facility had abandoned the site, EPA was left with temporary responsibility for at least minimal site security and system operations to protect both the nearby residents and the environment. Over 300 tons of carbon disulfide, a poisonous liquid that could present an acute fire and explosion hazard if mishandled, required careful regulation. Eight hundred thousand (800,000) gallons of 87 percent sulfuric acid and assorted process chemicals including sodium hydroxide (lye) and chlorine and ammonia gases also required careful attention to ensure that no disaster occurred. ------- Avtex Fibers Site, Region 3 (Continued) EPA officials had been working with the firm, conducting an ongoing cleanup at the plant, prior to the shutdown by Avtex personnel. Actions: EPA mobilized within a matter of hours to stabilize and secured the abandoned facility. An imminent hazards inventory was conducted as well as the decommissioning of various chemical production and support lines. The wastewater treatment plant was revamped by EPA, and all stonnwater runoff and other sewers at the facility were diverted to go through the treatment plant prior to being discharged to the Shenandoah River. 204 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Belfield Avenue Site, Region 3 Philadelphia, Pennsylvania Status: This emergency response removal action was completed in October 1989. At the conclusion of this action, the site was slated for remedial investigation to assess the need for further activity. Results and Benefits: Because the identified responsible party (RP) was unable to perform the entire removal, EPA addressed the situation, eliminating the threat of fire posed by thousands of gallons of organic solvents contained in the building. Threats posed by hazardous substances including lead compounds, asbestos, explosive materials, and poisonous chemicals were also abated. Background: The Belfield Avenue site contained a large 3-story building of approximately 120,000 square feet situated in the Germantown section of Philadelphia. The building housed the Visual Packaging Co., a chemical repackaging and specialty chemical blending company, and several small businesses involved in the manufacturing of rugs, furniture, and other wood products. The products produced by Visual Packaging included hand soap, gasfinder, waterfinder, zinc oxide products, methanol blends, brake fluid, and isopropyl alcohol. On July 14, 1987, the Visual Packaging Co. building was damaged by explosions followed by fire. Effects of the blasts on the building included blown-out walls, a collapsed roof, and fire damage to the interior and to stored materials. Upon the discovery of hazardous materials in the building, the Philadelphia Fire Department requested EPA assistance. Actions: The EPA On-Scene Coordinator (OSC) and members of the Technical Assistance Team (TAT) responded to the request by the Philadelphia Fire Department. No entry was made into the building on July 14 because of unsafe conditions. On July 15, TAT personnel performed a site assessment. Numerous tanks were found to contain fuel products, organics, and many drums (some damaged, some containing oils, and some with unknown contents). Six 1,000-gallon tanks and one 7,000-gallon tank filled with organic solvents were present Approximately 300 55-gallon drums, 100 miscellaneous containers containing unknown materials, and 3 tons of lead-based products were also observed. EPA representatives met with the owner of Visual Packaging to discuss the materials that remained in the building and the unknown contents of barrels found on the roof. The latter had been left in the building by a previous tenant, who had left the property after bankruptcy of his business. The current owner agreed to take responsibility of cleanup of his own products and raw materials. A Consent Agreement was signed on July 23, 1987. The Occupational Safety and Health Administration (OSHA) determined that work could commence ------- Belfield Avenue Site, Region 3 (Continued) after portions of the building had been stabilized and work areas defined. Because the RPwas unable to initiate a cleanup in a timely fashion, the OSC activated Superfund to begin an EPA removal action on August 20, 1987. The emergency response contractor began the cleanup activities. A section of the roof had collapsed on many of the drums and containers. This debris, along with the shoring-up of wells, were addressed first. After the building was determined safe by a structural engineer, an asbestos removal contractor was brought in by the emergency response contractor to remove pipe insulation. A demolition contractor was hired to remove debris from the collapsed roof. Air monitoring was performed by the TAT throughout demolition activities. Drums and containers were staged for onsite sampling and analysis as they were uncovered. Wastestreams were segregated according to compatibility, and containers were overpacked as necessary and staged for disposal. EPA enforcement personnel remained in contact with the RP throughout the project. Site security was provided during the cleanup on a 24-hour- per-day basis. By the time this action was concluded, numerous containers had been sent to hazardous waste disposal contractors as far away as Arkansas and South Carolina. Six 20- cubic-foot rolloffs of contaminated debris were sent to Waste Conversion of Hatfield, Pennsylvania. Approximately 10,000 gallons of used decontamination water were sent to Chem- Clear of Chester, Pennsylvania. One 20-cubic- foot rolloff at crushed drums was sent to GSX of Pinewood, South Carolina. Almost 100 drums of assorted hazardous materials including polychlorinated biphenyls (PCBs), acid liquids, oxidizers, flammables, organ!cs, cyanide solids, and peroxides, and 25 drums of pesticides were sent to ENSCO of El Dorado, Arkansas. Three truckloads containing drums of base-neutral organics, cyanide liquids, flammable liquids, and other organic chemicals were sent to Caldwell Systems of Lenoir, South Carolina. Seven drums of corrosive liquids were sent to Chem Waste Management of Newark, New Jersey. One drum of flammable liquid was sent to Frontier Chemical Waste Process in Niagara Falls, New York. At various times, usable products such as glue were transported offsite for reuse in industry. Pentachlorophenol (PCP), an insecticide and wood preservative, was a constituent of materials used in the wood shop. At the time of the action there were no permitted facilities for PCP-contaminated waste. The PCP- contaminated materials were then secured in a fire-resistant vault onsite. OSC declared the project closed on October 1989 as no further action could be taken. 206 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Bellinger Steel Plant Site, Region 3 Ambridge, Beaver County, Pennsylvania Status: This removal site was declared closed by the On-Scene Coordinator on June 13, 1991. Benefits and Results: The removal action at the Bellinger Steel Plant has reduced the threats of explosion due to acetylene, which can be generated by exposure of calcium carbide to water. Cyanide and other hazardous materials were also a threat to the densely populated residential community. Reuse of the calcium carbide by an acetylene manufacturer demonstrates the benefits of waste minimization and turns a hazardous substance into a commercially valuable asset, while avoiding expensive disposal costs. Background: The site is located in Ambridge, Beaver County, Pennsylvania. The surrounding area is mainly industrial/commercial; however, the Ambridge Area High School, three churches, an industrial park, and approximately 20 homes are located within a 1/4-mile radius of the site. The Bellinger Steel Plant site consists of two irregularly shaped parcels, with a total area of approximately 2.7 acres. Eight above-ground storage tanks and an interconnected one- and two-story industrial facility of approximately 90,000 square feet were located on one parcel. The second parcel had three small brick structures and one partially underground brick structure housing three storage tanks that were half-submerged in water. Two hundred twenty-two drums, 291 cubic yards, 7,300 gallons, and 114.75 tons of combined hazardous materials were removed from the site. In addition, 77 drums of calcium carbide were recycled, and 199,538 gallons of wastewater were treated and discharged into the local sewer system. The abandoned Bellinger Steel Plant was referred to the EPA Removal Action Branch by EPA's Office of Regional Counsel, which requested an investigation due to conditions at the site. On February 14, 1990, an investigation in coordination with the Internal Revenue Service mortgage holders confirmed areas of public health and environmental concern. A fire and/or explosion threat posed by corrosive wastes stored in a structurally unsound building prompted the OSC to initiate a removal action. Analysis of random samples collected from tanks and drums revealed flashpoints of less than 140°F. In addition, several tanks were located in an area that was not secure and was accessible by the general public. Tanks, vats, and drums had no secondary containment, and the site drainage entered the city storm sewer system which discharges into the Ohio River, approximately 2,400 feet west of the site. The sensitive location of the site, a highly populated area, further substantiated the necessity to initiate removal activities. Actions: Phase I of the removal action consisted of overpacking and securing all 77 calcium carbide ------- Bollinger Steel Plant Site, Region 3 (Continued) drums. On April 21, 1990, an exothermic reaction occurred within one drum during overpacking/bulking operations, producing acetylene gas. The emergency response contractor isolated the drum from the staging area, and local fire department support was deployed. During Phase II, the emergency response contractor mobilized the calcium carbide treatment operations and set up a weather station to monitor atmospheric conditions during destruction of the calcium carbide. On August 1, 1990, the emergency response contractor initiated treatment of the calcium carbide, using the calcium carbide reaction and destruction system (CCRDS) for thermal oxidation and treatment of the materials onsite. OSC was then contacted by an acetylene manufacturing processor, who inquired if the calcium carbide onsite could be acquired for its acetylene manufacturing processes. By August 2, 1990, 300 pounds of calcium carbide had been treated onsite with the CCRDS. The remainder of the calcium carbide was shipped to the acetylene manufacturer for processing. Phase III consisted of discharging site wastewater into the local sewer system. The consulting engineer for the Ambridge Sewage Treatment Plant (ASTP) requested that all discharges be adjusted to pH 7 and comply with all Pennsylvania Department of Environmental Resources discharge requirements. The cost levied by ASTP to EPA for discharging into the system was 3 cents per gallon. The wastewater treatment and discharge and removal of cyanide sludge from the above-ground storage tanks was complete on December 12, 1990. Removal activities for Phases IV and V included tank removal and dewatering/ desludging operations, decommissioning of an underground storage tank, and final disposal. Seven drums of waste were generated from tank decontamination operations. The last drum of waste was removed from the site for disposal 208 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Coleman Testing Laboratory, Region 3 Philadelphia, Pennsylvania Status: All planned removal actions for the contaminated third floor were completed with the transportation of the final drums of hazardous materials on March 1, 1993. The former occupants of the building have returned. The printing operation remains in the first floor area. Results and Benefits: Because residences are immediately adjacent to the site and row houses are across the street, nearby residents were at risk of direct contact, inhalation, and ingestion of hazardous vapors and fumes. These threats, due to indiscriminate storage of incompatible substances, have been removed. Some of the substances, such as picric acid and ether, had converted to shock-sensitive, explosive forms. This action has eliminated the threat of fire and/or explosion by complete removal of these potential hazards. Radioactive sources found at the site have been properly disposed of, thus removing the source for potential contact. Background: This site is a three-story building located in a residential area of Philadelphia. Heavily developed residential and commercial areas lie within a mile of the site. Operations were conducted at the site by the Coleman Testing Company until 1981. The current owners operate a printing business on the first floor. The second floor of the building is used as a residence, and the third floor housed the laboratory. City representatives inspected the building in October 1992 and discovered the laboratory chemicals stored on the third floor. Citations were issued to the building owner, but no actions were taken. EPA was requested by the State to assist in a further site inspection. Hazardous substances found at the abandoned laboratory, based upon visual observations and container labeling during the inspections, included two hydrogen sulfide gas cylinders, several containers of picric acid, numerous flammable liquids containers, acids of several varieties, and radioactive materials. Actions: EPA conducted a removal action at the site from November 3 to November 16,1992. The action consisted of characterization and segregation of the hazardous substances; stabilization of the containers; characterization of the contents of the drums, containers, and packages for disposal purposes; and transportation and disposal of the hazardous substances offsite. Mercury levels were monitored in a third-floor room where mercury had been spilled. Mercury contamination was found to be present in the air. In all, 77 drums of Labpacked chemicals, 4 compressed gas cylinders, 3 drums of hydrochloric acid, and one 5-gallon pail of radioactive material were removed from the site. ------- Page Intentionally Blank 210 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Eastern Diversified Metals Site, Region 3 Schuykill County, Pennsylvania Status: Following a September 1991 order, the site owner and waste contributors removed and disposed of miscellaneous onsite debris, initiated ground-water studies, and unproved the existing fence around the site. In July 1992, EPA selected recycling to clean up the plastic insulation waste. Because the responsible parties failed to reach a negotiated settlement, EPA issued a unilateral order in June 1993, directing them to perform and finance the recycling remedy. Remedial measures are ongoing at the site. This site remains on the National Priorities List (NPL). Results and Benefits: For the first time, the Superfund program selected onsite waste recycling as the primary cleanup strategy for a hazardous waste site. More than 350-million pounds of plastic insulation waste formed an enormous mountain on the property. Because of the large volume of that single type of waste, recycling was a cost- effective alternative to landfilling and incineration. The plan demonstrated EPA's ability to resolve a complex situation with a simple, yet creative, solution. By working with the State, community members, and waste contributors, Superfund personnel: « Designed an effective cleanup that would be privately financed and conducted; and « Demonstrated how recyclable hazardous waste could be converted into a marketable product whose sale would help finance the cost of cleanup. The Mauch Chunk Formation, one of the largest aquifers in northeastern Pennsylvania that underlies the site as well as surrounding communities, has been spared the potential for contaminant migration. The threat of contaminated drinking water affecting more than 1,400 local residents who draw from wells connected to the Mauch Chunk Formation has also been eliminated. Background: Eastern Diversified Metals Corporation is a former wire reclamation facility in Rush Township, Pennsylvania. The 25-acre site is bordered by a home and several businesses, as well as State game lands. A tributary of the Little Schuykill River flows adjacent to the site. Beginning in 1966, the facility reclaimed copper and aluminum by stripping plastic and fiber insulation from electrical wires and cables and disposing of the waste behind the processing facility. Eventually the waste material, referred to as "fluff," formed a 40- to 60-foot mountain that encompassed 7.5 acres and weighed more than 350-million pounds. Dioxin, polychlorinated biphenyls (PCBs), and polychlorinated napthalenes (PCNs) were found at dangerous levels at the site. Other debris, including unstripped wire and cable, cable spools, scrap metal, and wooden pallets, were dumped in several small piles around the site. Complaints about odors and leachate originating from the piles at the site prompted initial investigations. A fire ignited the "fluff* in 1977 and burned for almost 2 weeks. Fighting the 211 ------- Eastern Diversified Metals Site, Region 3 (Continued) fire proved very difficult because the flames burned underneath the surface. Actions: EPA first became involved at the site in 1983 after preliminary inspections by the State revealed these dangerous contaminants on the site. Subsequent investigations were completed by EPA, the State, and the property owner between 1984 and 1987. In 1989, the site was formally added to the NPL. In October 1987, EPA signed an agreement with the owner and the major contributor of the waste to conduct comprehensive studies to determine the nature and extent of contamination. The studies were completed in 1990. In September 1991, EPA ordered the responsible parties to remove miscellaneous debris from the site, repair the fence, and undertake additional ground-water studies. In July 1992, EPA issued the waste recycling remedy for the "fluff." Under the plan, this material would be recycled onsite using two recycling methods. One method, bulk processing, converts the "fluff" into a solid plastic mass that can then be used to fabricate tiles, mats, fenders, cushions, plastic lumber, traffic cones, and highway barriers. The second method separates the plastics from the soil and debris through a "sink-float* process using water. This process is used to separate the polyethylene (PE) and polyvinyl chloride (PVC) plastics. The PE and PVC plastics are then formed into pellets that can be used as raw materials in the manufacture of new plastics or as ingredients in concrete or blacktop. All nonrecyclable materials and contaminated soil were taken to offsite landfills. EPA and the State supervised removal activities until January 1993. Cleanup actions to remove the nonrecyclable debris piles were completed in the summer of 1993. 212 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET E-Z Chemical Site, Region 3 Philadelphia, Pennsylvania Status: The work at E-Z Chemical site was completed within 13 months under the Superfund removal program. All emergency removal actions have been completed at the site. The facility remains vacant and unused. Results and Benefits: As a result of the emergency removal actions, the threat to the surrounding community of fire and/or explosion due to the crowded staging of incompatible and unknown hazardous materials has been eliminated. EPA's success in obtaining removal of product by its owner/manufacturer minimized disposal, which resulted in the savings of thousands of Superfund dollars. Background: The 1.5-acre facility was a chemical storage and repackaging operation located in an urban area. Adjacent to the site is a meat processing facility and limousine/bus service. An apartment complex is located 2 blocks to the south, to and around the facility were a variety of chemicals stored in over 10,000 55-gallon drums, 3,000 laboratory containers, and 30 tanks. On the southwestern end of the property was a large bulk storage tank (approximately 70 feet high by 60 feet in diameter) that served a warehouse for over 600 drums, many of unknown identity. There were 6 inches of water on its floor upon initial discovery. Access into the tank was obtained by cutting a hole in its side through which a 5-ton truck could be driven. It was suspected that repeated discharges of chemicals into a sanitary sewer system had taken place as evidenced by ground discoloration around a sewer culvert in the street. In a second-floor laboratory, 5 containers of ether, 25 1-gallon bottles of acids, and approximately 15016-ounce bottles of unlabeled liquids were found. A partial list of the chemicals identified from the site laboratory includes: Acetic Acid Hydrofluoric Acid Phenol Sulfuric Acid Nitric Acid Ethyl Butanol Aniline Hydrogen Peroxide Phosphoric Acid Anhydrous Ether Ammonium Hydroxide Sodium Chlorite (water-reactive) Actions: Actions were implemented under the Superfund removal authority due to the immediate threat to human health and the environment. Given the immense volumes of chemical materials at the site, the initial action was to locate as much usable product as possible and have the owner/ manufacturer remove their product. This action greatly reduced the amount of money spent for treatment and removal. While site personnel segregated usable product, all other leaking and deteriorating drums were promptly staged for disposal. Due to space constraints, drums were color-coded with spray paint so that site personnel could count the ------- E-Z Chemical Site, Region 3 (Continued) number of drums in each wastestream, segregate them, and prepare bids for disposal. Known chemicals were bulked with their compatability group; however, unknown chemicals had to be hauled by a special subcontractor. Materials from deteriorating barrels in the "large tank" ultimately had to be pumped into transport trucks for offsite disposal. In all, EPA disposed of 2,188 product drums, 6,268 empty drums, 789 bulked labpack containers, and 24 gallons of undmmmed liquid. Owners and manufacturers reclaimed 1,299 drums of product, 164 empty drums, 77,286 gallons of undrummed liquid, 39 tons of undrummed solids, and 7 small containers of dispersant. 214 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Fikc/Artel Chemical Site, Region 3 Kanawah County, West Virginia Status: Removal work at the site is complete, with an attractive 8-foot-high grass-covered berm bounding three sides. Treatment of the contaminated ground water is in progress, with completion estimated to occur after the year 2000. Results and Benefits: Immediate threats to the public and the environment were minimized. Small quantities of assorted chemicals were secured from public access while the large quantities of sodium and methyl mercaptan found on the site were made available for commercial reuse by local industry. EPA's Superfund program responded quickly to defuse an emergency situation and to clean up this difficult, large-volume contamination. Background: This 12-acre site, located in a 100-year floodplain just east of the Kanawah River, was the site of a specialty chemical formulating facility. The site is surrounded by other commercial and industrial operations, including a tank truck washing facility and a drilling supply. Twenty-five hundred residents live within 1/2-mile of the site. The site is located 500 feet west of the downtown commercial area of Nitro. The municipal swimming pool, a retirement home and park, and the Nitro Junior High School are 1/4-mile south of the site. The Fike/Artel product line included specialty chemicals that were used as raw materials by other chemical companies in the area. Due to violations of the Clean Water Act, the site was the subject of investigation by the West Virginia Department of Natural Resources (WVDNR) in 1976 and by EPA in 1979. The site was placed on the National Priorities List (NPL) in 1983. Subsequent cleanup orders and inspections by EPA and WVDNR resulted in varying compliance by plant authorities regarding the onsite handling and storage of hazardous materials. In June 1988, the company closed and abandoned the site, leaving behind a wide variety and large quantity of poorly protected chemicals that posed various threats to human health and the environment. The abandoned site consisted of approximately 15 buildings, including process areas, laboratories, waste storage buildings, lagoons, and a wastewater treatment building. In addition, approximately 300 bulk storage and process tanks are present in various stages of dilapidation; these contain acids, bases, flammables, and cyanides. Among the hazardous and noxious chemicals found onsite were a 30-pound deteriorating cylinder of extremely poisonous hydrogen cyanide; 100,000 pounds of metallic sodium (which combines with water so vigorously that the evolved hydrogen is ignited); 9,000 gallons of methylmercaptan; and an assortment of bulk Hquid and solid materials of lesser threat. Actions: After this site was abandoned, the EPA Emergency Response team secured the site from public access to minimize the immediate threats ------- Pike/Artel Chemical Site, Region 3 (Continued) to the community and the environment. Subsequently, they characterized and addressed the wide variety of materials present. Nearby chemical companies removed and disposed of the sodium and methyl mercaptan. Nearly 10- million gallons of contaminated water were treated and discharged. In this effort, 8,000 laboratory containers, 1,500 cubic yards of contaminated clothing and debris, 5,000 jars of unknown materials, and 75 gas cylinders were properly disposed of. The challenge of properly disposing of an unstable cylinder identified as containing deadly hydrogen cyanide gas was handled creatively, but involved the evacuation of the community to be safe. By late 1989, the site was judged sufficiently stable, and 24-hour- a-day site security and monitoring ended. 216 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Goodwin Junkyard Site, Region 3 Isle of Wight County, Virginia Status: The removal action is complete, and the site is no longer used as a junkyard and metal salvage yard. The family of the responsible party (now deceased) still resides onsite. Results and Benefits: The nearby residents and domestic animals have been spared the threat of inhalation and ingestion of and direct contact with the hazardous materials and substances at the site. There is no longer a potential for the release of these materials to migrate into adjacent water bodies or into the ground water. The threat of fire or explosion due to the incompatible storage of containers of acids and corrosives has been eliminated. Background: This 4-acre property in a residential area was used to operate a salvage business. Following a fire and subsequent investigation by the State in August 1990, the business was found to be in violation of several county and State regulations concerning safe storage and operation. Numerous drums, containers, and cylinders containing a variety of base/neutral, corrosive, toxic, flammable, combustible, and shock-sensitive materials were found on the property. The site is situated in a rural area in close proximity to wetland areas and lies between two tributaries of the James River. Isle of Wight County residents rely solely on ground water as their source of drinking water. Actions: Responding to notification by the State in September 1990, EPA investigators found numerous containers and vessels labeled as flammable, poison, paint, and oil. Automotive batteries and various tanks, containers, and assorted pressurized cylinders with unknown contents were also uncovered. In December 1990, work began, and materials were segregated in two categories: hazardous and nonhazardous. Soil sampling at the site revealed elevated levels of cadmium, lead, mercury, and copper. A potentially live projectile was recovered on January 16,1991, by the U.S. Naval Explosive Ordnance Detachment. This was removed from the site and later detonated in July 1991. On February 15,1991, bulking and final staging of all materials to be removed began. At this time, it was determined through analytical methods that the depth for soil removal would not exceed 6 inches in the contaminated areas. All final staging operations for hazardous material were completed by February 24, 1991. Soil removal operations began on February 25 and were completed March 4, 1991. Site restoration operations began on March 5 and were completed with site personnel demobilizing on March 11. Final drum disposal occurred on June 26, 1991. The responsible party passed away during the project on February 19, 1991. The family still resides on the site, and there are no restrictions as to residential usage on the property. OT7 ------- Page Intentionally Blank 218 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Greenwood Chemical Site, Region 3 Albermarle County, Virginia Status: Initial removal actions have been completed. The site is under the jurisdiction of the EPA Remedial Program for further cleanup. Benefits and Results: The removal actions at this site have stabilized or removed the major sources of contamination and the threat of fire and explosion. Future work under the EPA Remedial Program will address residual contamination remaining in the soil and sludge. Specific threats posed by the site include contamination of drinking water, damage to sensitive ecosystems in the Shenandoah National Park, direct exposure to toxic and corrosive substances, migration of hazardous substances to farm land, and the threat of fire or explosion posed by compressed gases and metallic sodium. Background: The Greenwood Chemical Company conducted experimental chemical research and production from the late 1950s until 1985. This 15-aere site is located in Albermarle County, Virginia, along Interstate 64,4 miles east of Waynesboro and approximately 20 miles west of Charlottesville at the base of the Blue Ridge Mountains. The site is situated in a mountain valley and comprises seven buildings, five lagoons, and two abandoned structures occupying most of the level ground. A small stream flows to the south feeding Stockton Creek. A fishing camp on Stockton Creek is within 5 miles of the site. In 1971, a fish-kill was documented on Stockton Creek. Skyline Drive in the Shenandoah National Park is less than 2 miles to the north. On April 18, 1985, a toluene vapor explosion killed four workers and destroyed a process building. This resulted in the virtual cessation of operations at the site. Lack of maintenance increased the likelihood of a chemical reaction or release. In the summer of 1986, the Commonwealth of Virginia proposed to EPA that the site be considered for inclusion on the National Priorities List (NPL). In January 1987, EPA determined that a removal action was necessary to deal with immediate hazards. Potential responsible parties (PRPs) including current and previous owners and operators were notified to assist in the cleanup, but no responses were received. Initial site investigations were conducted. Hazardous materials found at the site included organic solvents, cyanide, benzopyridine, organic peroxides, metallic sodium, hydrogen fluoride gas, and arsine gas. Subsurface ground-water contamination was also found. Actions: The first phase of the removal action included collecting all surface drums and staging them in a prepared area. Excavation operations then began for recovery of buried drums. The drum area was capped after the removal in anticipation of the later remedial actions. ------- Greenwood Chemical Site, Region 3 (Continued) While drum excavation was in. progress, a wastewater treatment plant was set up to treat the water contained in four of the five onsite lagoons. Activated carbon filtration was used to remove organics from the lagoon water. Water that met cleanup standards was discharged from the plant into the fifth lagoon. Water not meeting standards was returned to the fourth lagoon. Due to funding limitations, the fourth lagoon was treated, but not decommissioned. Consequently, this lagoon was left intact after treatment and allowed to refill with site drainage. The sludges from the three empty lagoons were solidified with kiln dust and deposited into the third lagoon, which was capped to await further remedial action. As cylinders were discovered during excavation, the On-Scene Coordinator (OSC) requested that the owner or manufacturer reclaim them, with favorable results. Twelve remaining gas cylinders were disposed of by explosive perforation without incident. Some barrels were found with metallic sodium residues, which react violently on exposure to water. Onsite personnel devised a method for safely reacting and neutralizing the sodium onsite, avoiding the expense of offsite treatment. In sum, quantities removed included 2 rolloffs of base-neutral solids (organics), 9 tons of spent carbon adsorbent, 30 truckloads of shredded drums and lagoon sludge, 3,000 gallons of base- neutral liquid, 28 drums of waste flammable solids, 7 drums of waste flammable sludge, and 2,970 gallons of waste flammable liquids. A drainage system was installed to channel all site drainage into the fifth lagoon. The entire site was seeded. On June 21, 1988, removal program actions were completed, and the lead role for future activities was assumed by the EPA Remedial Program. In November 1989, however, additional removal work was requested by the Remedial Project Manager. This included the construction of a drainage swale with a rock check dam to prevent potential offsite migration of contaminants in rainwater and eroding soil. The site was re-released to the Remedial Program on July 25, 1990. 220 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Jackson Ceramics Lead Site, Region 3 Falls Creek, Pennsylvania Status: This Comprehensive Environmental Response, Compensation, amd Liability Act (CERCLA) removal action has been completed. Hie site was auctioned in 1990 for nonpayment of taxes. Benefits and Results: The threat of ingestion and/or offsite migration of lead compounds has been abated. Sediment contamination in a tributary of Sandy Lick Creek presented a significant danger to wildlife in the area. The creek leads to a larger stream used for recreation. Polychlorinated biphenyl (PCB)- containing transformers and flammable and explosive solids and liquids have been removed from the site. Background: Jackson Ceramics was a china plant that used a lead-based glazing process. The plant operated from 1917 to 1985, when the site was abandoned due to bankruptcy. The 15-acre site is located east of PA Route 950 in Falls Creek, Jefferson County, Pennsylvania, approximately 1.7 miles northwest of the City of DuBois, Pennsylvania. Residue from the lead-glazing process had been discharged into a lagoon for settling. Drums and containers of potentially hazardous materials were strewn throughout the site. In an initial removal action, lead-contaminated soil was removed from the site in January and February 1989. The resulting drums of material were secured in a new building on the site. On October 29,1989, a fire occurred that destroyed most of the old buildings, damaging containers of lead-bearing products and allowing contaminants to migrate. In addition, some transformers were dislodged, and vats containing lead-contaminated sludge broke apart. This led to a restart of the removal action. Actions: In the initial removal activity conducted by the EPA Emergency Response Section from March 1988 through February 1989, EPA removed 1,900 cubic yards of lead-contaminated soil. In addition, many containers and approximately 80 drums of oil and flammable and organic materials were staged in the new building for disposal. These actions also included bulking of pigment and lead sludge, characterization and bulking of drums, containers, vats, etc., and transport to final disposal. On October 29, 1989, a fire of suspicious origin destroyed approximately 75 percent of the facility, making it unsafe for entry. Many containers of lead-containing products were damaged, exposing their contents for potential release. Two dislodged transformers were found to contain PCB-contaminated oil. Drums stored in the new building during the 1988-89 removal action were not involved in the fire. The On-Scene Coordinator (OSC) submitted a request to restart removal actions after the fire. These actions included transportation and disposal of all tanks, PCB-contaminated transformers, vats, and drums containing hazardous materials, and the demolition of ------- Jackson Ceramics Lead Site, Region 3 (Continued) unstable walls. Also, an unknown solid brown material found on the pallet of the new building was sampled. In August 1990, the site was auctioned by the Falls Creek Borough for nonpayment of taxes. The new owner tore down the security fence and began removing metal scraps from the site without consulting EPA. When the OSC became aware of these activities, Falls Creek Borough officials were contacted to prevent the owner from re-entering the site. Overpacking of drums, transformer sampling, and transportation of wastes offsite continued through September 1990. In early October, an assessment concluded that the sediments of an unnamed tributary to Sandy Lick Creek had unacceptably high concentrations of lead. A fence was built to mitigate the threat of direct contact. The solid brown material on the pallet was wrapped and placed in the storage building. In addition, the underground storage tank, 15 transformers, and building and fence debris were determined by the OSC to pose no threat, and accordingly remained secured onsite. The action was officially closed as of October 26, 1990. 222 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Maxjol Battery Removal Enforcement Site, Region 3 Lackawana County, Pennsylvania Status: Superfund removal activities are complete and work is progressing voider authority of the Resource Conservation and Recovery Act (RCRA). The plant has not resumed operation. All buildings were torn down, and an attractive grassy cover has been planted over the most visible areas. Homes in the area have been decontaminated as necessary, and the contaminated soil has been stockpiled on the plant property. A local watchdog group is monitoring activities of both the responsible party and EPA. The plant site has been stabilized in preparation for additional cleanup of the contaminated soil and an illegal landfill containing an estimated 65,000 cubic yards of buried battery casings. Results and Benefits: Eighty residential properties (dwellings and land) were cleaned by the responsible party to allow safe occupancy of nearby residences. The high concentrations of lead in the soil have been remedied and the threat of ground-water contamination has been removed. Background: The 42-acre site had been used for many years for battery cracking and reclaiming activities; Early operations reportedly included landfilling of batteries that had been sledge-hammered by local teen employees. Later operations included "smelt and bum* processing in which some lead recovery was intended, although the remains continued to be landfilled upgradient of the Lackawanna River. Following a health advisory from the Agency for Toxic Substances and Disease Registry (ATSDR), a 13-block area along Throop Avenue was identified as a potential health threat due to extremely high levels (200,000 ppm) of lead in soil and household dust. Novel challenges in this cleanup included establishing an appropriate cleanup level because no nationally recognized, consistent cleanup level was available at that time (500 ppm was finally accepted in consultation with ATSDR). In addition, the level of concern expressed by the townspeople made an intensive community relations program a necessity. To maintain open communications, periodic newsletters and blood analysis for children were instituted, and a Community Relations Office was established by the Region and the responsible party and staffed 40 hours per week Actions: The responsible party developed a plan for soil excavation for a contaminated residential area. During excavation, residents were housed in a specially established trailer park. Fugitive emissions were controlled. Following excavation of 50,000 cubic yards of soil by the responsible party under EPA oversight, the residential properties were fuEy restored and landscaped. Subsequently, a strategy for cleaning the interiors of homes near the site was developed. This involved establishing acceptable endpoint lead levels and scientifically acceptable interior lead wet cleaning protocols which concentrated ------- Marjol Battery Removal Enforcement Site, Region 3 (Continued) on high loading areas such as basements and attics, behind furniture and appliances, and in rugs and carpets. 224 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET METCOA Radiation Site, Region 3 Pulaski, Pennsylvania Status: The two removal actions represent only the initial stabilization of a site that may require many years of continued corrective action and the expenditure of an estimated $4 to $8 million to complete. A steering committee representing the potentially responsible parties is continuing actions at the site. Results and Benefits: Demonstrated migration of radioactive and hazardous materials offsite has been abated by the removal actions. Ground-water and surface- water resources had been threatened, as well as 3,000 to 5,000 visitors to the flea market that operates adjacent to the METCOA facility during the summer. All market workers and customers as well as the inhabitants of the village of Pulaski were potentially exposed to contamination through dust-borne transmission. In a 1987 newspaper report, an official of the Pennsylvania Health Department said that because of its location, the site had potential value for reuse provided it could be cleaned up. Background: The METCOA (Metallurgical Company of America) facility was a metal reclaiming plant that has been abandoned since the company declared bankruptcy in 1983. The site is located west of Route 60 on Route 551, approximately 1/2 mile north of Route 206 in Pulaski, Lawrence County, Pennsylvania. The site is approximately 22 acres, 6 of which are surrounded by a chain-link security fence. The area surrounding the site is rural/agricultural. Buchanan Run, a tributary to the Shenango River, flows adjacent to the site. Several households in the immediate area obtain water from private wells. METCOA held a Nuclear Regulatory Commission (NRC) license to handle low-level radioactive wastes on the site. These wastes were primarily in the form of thoriated magnesium and nickel compounds. Approximately 2,500 drums on the site contained a variety of heavy metal waste including lead, cadmium, and chromium, as well as thoriated materials. In January 1986, NRC issued an order to the site owners, requiring METCOA to correct license violations or face criminal action. NRC conducted a radiological survey in 1986 that revealed elevated levels of radiation from the waste generated by the metal processing operation at the METCOA facility. Soil samples collected from the site also contained extremely high levels of lead, chromium, and cadmium. Because NRC had no funds available for cleanup, it needed State and EPA assistance to expedite action. NRC bought the site to the attention of the Pennsylvania Department of Environmental Resources (PADER), which then conducted a site assessment. This confirmed NRC findings that heavy metals were present on the site. Actions: Between June and September of 1986, EPA performed a comprehensive site assessment that included soil, drums, surface water, and ground water. Geophysical surveys were also conducted, OOK ------- METCOA Radiation Site, Region 3 (Continued) including a magnetometer survey and ground- penetrating radar. This investigation located a large covered trench containing what appeared to be buried drums. Because there is a locally high water table, the drum materials potentially threatened the ground water. In addition, approximately 1,500 surface drums, some severely deteriorated and spilling their contents onto the ground, were found. After it was determined that a potential threat existed, an Administrative Consent Order was drawn up, but the Potentially Responsible Parties (PRPs) declined to act on it in a timely fashion. The PRPs included the lessees and lessors of the property, the savings association that held the mortgage, the State of Pennsylvania, and companies that brought their wastes to METCOA for reprocessing. The OSC's report noted that "the list of PRPs continues to grow as the enforcement investigation continues." EPA subsequently assumed responsibility for the site stabilization phase of the cleanup under the Removal Program. Two removal actions were conducted at this site. The first, in 1987, involved stabilization of the situation. During this time, 2,641 drums and 1,300 cubic yards of bulked wastes were staged onsite and covered. In the latter part of 1988, the METCOA PRP Steering Committee signed a Consent Order to further stabilize the site. In October 1989, contractors moved drummed materials inside a building, covered debris piles, an set up erosion control measures. In February 1990, EPA met with PADER and Pulaski Township officials to discuss conditions and reported trespassing on the site. A site inspection revealed signs of vandalism as well as the general deterioration of site conditions. Conditions were subsequently corrected by the PRPs' contractor. Negotiations were reached with the PRP Steering Committee, but when cleanup activities were not restarted, EPA initiated a removal action restart on August 13, 1990. In a second action, EPA removed 660 cubic yards of wood that had been deemed a fire hazard, and some metal debris. EPA and NRC established a level of 20 _R/hr above background as the definition of radioactively contaminated waste. Radiological and magnetometer surveys were conducted to generate maps of radiological hot spots and subsurface buried metal. On September 1, 1990, the OSC halted work as negotiations for PRP-led cleanup neared settlement. On October 16, 1990, the PRPs signed a unilateral order to resume and complete activities at the site. 226 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Metro Container Site, Region 3 Delaware County, Pennsylvania Status: All removal activities were completed at the site on November 6, 1991. The site remains fenced and inactive. Criminal charges are pending against the president and maintenance supervisor of Metro Container. Results and Benefits: Removal actions have prevented migration of contaminants to the Delaware River via Stoney Creek. By securing and fencing the site and its access, EPA has also reduced the threat of human exposure by direct contact. Criminal investigations and heavy fines have effectively shut down Metro Container, removing the potential threat of further covert environmental violations at this site. Background: Metro Container, a 4-acre drum reclaiming facility, operated at the site for 20 years under various names. Used, empty drums were bought, cleaned, and resold. The area immediately surrounding the site is industrial and residential. Approximately 500 people reside within a 1/4-mile radius with two-family row houses 1,500 feet north of the site. Stoney Creek borders the site and empties into the Delaware River approximately 1,000 feet away. Actions: In December 1987, site inspection and sampling were performed by EPA personnel to determine if an immediate threat existed at the site. In February 1988, the U.S. Coast Guard requested the EPA Emergency Response Section to assess the potential threat of migration from Metro into the Delaware River. Metro Container management assured EPA that it would take responsibility for the waste materials and proceed with cleanup activities. No such actions were taken, however. EPA began removal activities in September 1989 and ceased on June 2,1989, when the Potentially Responsible Party (PRP) steering committee signed a consent agreement and took over responsibility at the site. The cleanup was completed in January 1990. The first EPA removal action in 1989 included installing a perimeter fence, building and maintaining a retaining wall to prevent offsite migration of contaminants, and disposing of oil-contaminated rainwater. During this action, 136,000 gallons of contaminated rainwater and approximately 40,000 55-gallon drums of processing sludge were removed from the site. In June 1990, the EPA Mid-Atlantic Office of the Inspector General began a criminal investigation against the owners of Metro Container. Agents of that office obtained a search warrant on July 16, 1990, and executed a search of the premises. Acting on a tip, EPA investigators discovered two hidden rooms where several hundred steel drums were stored. In one room, known to Metro employees as the "lid room", an unnamed contractor, hired in 1986, dug a ditch and filled it with chemical wastes and drums. The workers then poured a new 8-inch-thick concrete floor over the waste to hide its existence. ------- Metro Container Site, Region 3 (Continued) to another room called the storage room, Metro The PRP subsequently cleaned these and other employees, during the summer of 1986, brought contaminated areas. Criminal investigations led in steel drums and then hired a contractor to to charges against the Metro Container president wall up the entrances. The newly discovered and maintenance supervisor for numerous drums were found to contain waste flammable environmental and civil violations. liquids, oxidizers, and waste solids. All the drums were promptly overpacked and disposed of at a RCRA-approved facility. 228 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Spectron/Galaxy Site, Region 3 Elkton, Maryland Status: The removal activities at this site have been assumed by the responsible parties as of August 18, 1990, and are still ongoing. Benefits and Results: Hazardous substances in drums and tanks posed a threat of release as well as fire and/or explosion. If the threat from the polychlorinated biphenyls (PCBs) had not been mitigated, Little Elk Creek, which feeds into the Chesapeake Bay, would have been contaminated. Background: The Spectron/Galaxy Site is located Elkton, Cecil County, Maryland, and is bordered on the west by Little Elk Creek, a tributary to the Chesapeake Bay. In addition, 19 residences are located within a 1/4-mile radius of the site, with a population of approximately 53 individuals. Spectron has been an industrial site for a long period of time. Records have indicated that at least two paper mills were established in the late 1800s. A fire gutted one mill in 1946, and the site remained vacant until 1961 when Galaxy Chemical, Inc., opened its operations. In December 1975, Galaxy Chemicals, Inc., went bankrupt, and all its assets, except the land, were sold at public auctions. The company restructured in late 1975 or early 1976 under the new name of Solvent Distillers, Inc. On February 28, 1978, Solvent Distillers, Inc., by an article of amendment, changed its name to Spectron, Inc. Spectron operated a resource recovery facility until March 13, 1987. During this period, it was involved in the reclamation of a wide range of industrial solvents from wastestreams generated by the electronics, pharmaceutical, paint, lacquer, coatings, and chemical process industries. The reclamation process may have consisted of acid/alkali treatment, phase separation, solidification, sedimentation, distillation, fractionation, liquid- liquid extraction, stripping, solvent recovery, or other treatments or combinations, as required. Actions: On April 12, 1989, at the direction of the On- Scene Coordinator (OSC) and in response to a request from the Maryland Department of Health and Mental Hygiene, an assessment was performed at the Spectron/Galaxy site. Twenty- five drums and six tanks were sampled for Resource Conservation and Recovery Act (RCRA) characterization. Also discovered were 1,355 55-gallon drums, 62 tanks containing approximately 0.5 million gallons of flammable chemicals, and a 10,000-gallon tank containing Aroclor 1248 (PCBs). Results from this assessment/inspection identified an immediate and significant risk to human health and the environment. The drums, because of their deteriorated condition, were found to be leaking at a rate of approximately two drums per day. On May 23,1989, after reviewing the Technical Assistance Team (TAT) data, OSC determined 223 ------- Spectron/Galaxy Site, Region 3 (Continued) that an imminent and substantial threat, them during cleanup activities. The committee including that of fire and/or explosion, was posed solicited bids for the project and selected a by the uncontrolled leaking drums of waste. OSC cleanup contractor. In addition, another issued a delivery order to the emergency response contractor was selected to monitor the project contractor to initiate removal actions. on behalf of the steering committee. By August 18,1989, the contractors had assumed cleanup Upon signing Consent Orders, the responsible activities at the site. parties formed a steering committee to represent 23O ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Valley Plating Site, Region 3 Henrico County, Virginia Status: All immediate removal activities have been completed at this site. An automobile repair shop is currently using a portion of the site. Results and Benefits: The threat of hazardous chemical runoff to nearby wetlands and the riverine ecosystems in the Chickahominy River has been eliminated. The river system, which serves as a primary drinking water source for the population of Richmond and other downstream cities, has been safeguarded from future offsite migration of contaminants. EPA's successful use of onsite treatment minimized disposal costs, thus saving thousands of dollars. Background: The 3-acre Valley Plating Chemical facility near Richmond, Virginia, formerly consisted of three buildings and a process wastewater collection lagoon. The lagoon was RCRA-regulated. Approximately 1/2 mile west of the site is a major racetrack that draws up to 50,000 people for major events. In the same direction, within a 1/4 mile, is the State fairgrounds. An elementary school is approximately 1 mile west of the site. East-northeast of the site, 50 feet from the RCRA impoundment (lagoon), is the Chessie System Railroad (CSR). CSR operates an active freight line with numerous trains every day. The Valley Plating facility operated as an automobile bumper electroplating and refurbishing facility from 1958 to 1985. According to reports, the electroplating ceased in 1985 after a routine EPA inspection found hexavalent chromium, zinc, nickel, and copper in the onsite impoundment. The operations were downgraded to automobile bumper reconditioning. On April 5, 1990, the County Fire Department responded to a fire of suspicious origin at the site. During the course of fire-fighting activities, drums, tanks, and vats suspected of containing cyanides and other hazardous materials were discovered. The potential threats to the surrounding community due to the unsafe storage of hazardous materials led the local fire department to notify local, State, and Federal hazardous materials emergency response personnel. Actions: On April 6, 1990, actions to stabilize the site began. Measures were immediately taken to prevent a complete breach of the lagoon and to contain effluent, thus minimizing offsite migration of contaminants. This was accomplished by placing a restrictive device in a nearby culvert that drained into the Chickahominy River, and pumping lagoon effluent into a containment vessel for treatment and disposal. The level in the lagoon was closely monitored throughout the project to prevent a release. A containment pool was constructed to receive excess water from the site for initial treatment. During the removal action, an active spring beneath the site continued to mix with hazardous waste. Subsequently, each of the ------- Valley Plating Site, Region 3 (Continued) buildings' basements had to be pumped several times. To minimize the offsite disposal and treatment costs, the water was pumped and treated to remove excess heavy metal contamination. As a result, this water was permitted to be sent to the local County sewage treatment plant for treatment and disposal. The level of water in the lagoon constantly replenished itself despite diversion techniques. A dewatering system was established that removed contaminated sludge, thus preventing additional ground water infiltrating the lagoon from being contaminated. To alleviate repetitive pumpings, the buildings, once drained, were backfilled with concrete, thus immobilizing contaminants and allowing for proper cleaning of the vats and processing areas. Wastes that were found in vats and drums onsite were characterized for disposal or recycling. Sludges that remained in vats were solidified. The transportation and disposal phase of site operations commenced on April 2, 1991. The liquids remaining in the pools were pumped off and sludges were consolidated into roll-off boxes. All drums and roll-off boxes containing waste were transported offsite, and all site operations were completed on April 26, 1991. 232 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Winchester Tire Fire, Region 3 Winchester, Virginia Status: All immediate removal actions have been completed at this site. Only 5 acres of the 300- acre farm/tire dump remain fenced. The owner continued to accept used tires until a court order in April 1992 placed his property in receivership to recoup the cost for removal of 1-million tires that remained on the property. Ground-water pumping and treatment to extract the oil are expected to be completed in the spring of 1994. Results and Benefits: The free-flowing oil/tar product that was formed when the tires were burned was sold for approximately $200,000, helping defray cleanup costs. Water that had been decanted off the product was found to be highly toxic. EPA's decision to pump the water back on the fire had the dual effect of vaporizing the water and oxidizing the polynuclear aromatic hydrocarbons. Treatment in this manner also saved approximately $ 148,000 in treatment and disposal fees. Air monitoring showed that no hazardous vapors were released as a result of pumping the water onto the fire. Background: On October 31, 1983, a fire of tremendous proportions broke out in a 4- to 5-acre tire pile. Tires were piled 50 to 80 feet high in a ravine. The fire, attributed to arson, involved between 5- and 7-million tires. The resulting smoke plume was several thousand feet high and extended 50-miles long, into four States. Airborne contaminants included particulates, CO2, CS2, and volatile organics, many of which are suspected carcinogens. Due to the intense heat of the fire and lack of oxygen within the pile, a pyrolysis reaction occurred whereby the polymeric rubber of the tires was being broken down into shorter chain hydrocarbons. The pyrolysis reaction produced a liquid tar/oil product which flowed across open ground and collected in two small retention basins. The intense heat from the fire ignited the pyrolytic product, producing a flash fire along the pathway of the discharge and, thereby, posing a threat of fire to the surrounding wooded areas. The questionable integrity of the initial containment structures, as well as large flows of pyrolytic product and high surface runoff from the surrounding areas during periods of rainfall, created the potential for a massive release of product to Hogue Creek and the Potomac River. Such an event would have been catastrophic to the municipal water supply intakes of several downstream cities including Hagerstown, Maryland, and the Washington, DC, metropolitan area. A release could have also led to major damage to aquatic life in the surface waters. The Winchester Tire fire became the subject of national attention. The extent of the hazards presented, the uniqueness of the situation, and the high visibility of the site (i.e., in the form of the smoke plume) drew national media interest. In particular, National Geographic and LIFE ------- Winchester Tire Fire, Region 3 (Continued) Magazines published detailed accounts of the fire, which included extensive photographic layouts. Actions: The initial emergency actions provided a containment structure to minimize the migration of pyrolytic product into the nearby tributary of the Hogue River and reduced the threat of chemicals entering the ground water. The enormous amounts of pyrolytic product entering the containment basin caused EPA to construct secondary and tertiary containment systems. To mitigate the threat of fire on the surface of the flowing pyrolytic product, EPA instituted an around-the-clock fire fighting program. A multi- agency cooperative effort was put in place utilizing Federal, State, county, and local firefighters experienced in fighting oil fires. To minimize the threat to human health and the environment in a cost-effective manner, EPA decided to maintain only a minimal amount of the pyrolytic product and contaminated water in the containment basins. As the amount of product reached certain levels, the excess (as determined by EPA) was pumped into tanker trailers onsite. The water was decanted and the oily phase was shipped to the oil reclaiming facilities. By establishing the continuous removal program, EPA succeeded in minimizing the threat to human health and the environment, and also provided for a very cost- effective response action. The fire was completely extinguished in July 1984. EPA entered into a Consent Order with the responsible party on February 13, 1984. The responsible party took over removal actions which included the containment, collection, and removal of the pyrolytic product. Long-term ground-water treatment to extract oil continues. 234 ------- REGION FOUR ------- Page Intentionally Blank ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Alpha Chemical Corporation, Region 4 Lakeland, Florida Status: Operations continue at the plant. As a result of remedial actions, the adjacent 1/2-acre impoundment site has been capped and revegetated. Institutional controls are in place to ensure the effectiveness of the low permeability cap. Long-term monitoring of surface water and ground water will continue. The site is currently being used to manufacture polyester resin. Results and Benefits: If left unchecked, continued use of the unlined pond would have permeated the clay layer that shields the much deeper Floridian Aquifer, which provides the drinking water to Lakeland and other nearby communities. The contaminated surface water onsite also threatened nearby wetlands. Early detection of contamination in a shallow aquifer led to a cleanup action that protected a major drinking water aquifer. At the request of the State, the Alpha Chemical Corporation has modified its processes and upgraded its wastewater treatment to control pollutants. Cleanup costs were borne by the potentially responsible parties (PRPs). Quarterly monitoring (to be continued until 1995) has shown decreasing levels in contamination as a result of the cleanup and plant modifications. Background: Formerly known as Alpha Chemical Corporation, Alpha Resins Corp, (current firm) has produced unsaturated polyester resin for fiberglass manufacturers at this 32-acre site near Lakeland, Florida, since 1967. The process yields wastewater containing small amounts of volatile organic compounds (VOCs). The company used two unlined surface impoundments to contain the water long enough for natural processes to break down or evaporate the organics. Ground-water monitoring information was requested by the Florida Department of Environmental Regulations when ARC sought to line a pond with concrete for caustic wash water disposal. New monitoring wells revealed VOC contamination of the surficial aquifer. Upon further testing, the surrounding soils and sediments were found to be contaminated with VOCs from the former process wastes. Actions: The cleanup in 1989 included capping the unlined pond to keep rainwater and runoff from spreading contaminants, and conducting long- term monitoring of ground water and surface water to assure the effectiveness of the cleanup. ------- Page Intentionally Blank 238 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET AX. Taylor (Valley of Drums), Region 4 Brooks, Kentucky Status; Remedial actions, including soil treatment, have been completed. Currently surface waters are treated prior to their release into Wilson Creek. EPA will perform 5-year reviews of the site until contaminants are reduced to levels that allow unrestricted property use. The site is currently vacant. Results and Benefits: This site was one of the worst illegal dumps in the Nation and the scene of one of the largest drum removals in the history of the Superfund program. The cleanup removed risks to local residents and protected Wilson Creek, a tributary of the Ohio River. Cleanup actions ensured that the recreational uses and biota of downstream surface waters would be protected from leachate and contaminated runoff. Background: The 13-acre A. L. Taylor site, known as the "Valley of the Drums," is located in Brooks, Kentucky, 12 miles south of Louisville. From 1967 to 1977, the site was used as a refuse dump, drum recycling center, and industrial chemical dump. The owner of the property never applied for the required State permit. In 1977, the operation closed after the owner's death. A citizen's complaint about a contaminated stream running through the Taylor property led to a State investigation of the dump site. One resident complained of pollution in the river so thick that one could walk on it. Once, in 1977, the river caught fire. In 1978, citizens brought suit against the owner of the dump. A $3,000 fine was levied, but never collected. The inclusion of this dump site on the National Priorities List (NPL) in 1981 finally brought the necessary response to protect the 100 people that reside within a mile of the site. In 1981, EPA discovered over 17,000 deteriorating and leaking drums at the site that were discharging pollutants into Wilson Creek, a tributary of the Ohio River. If left unmitigated, the contamination could have spread to the Ohio River. The site was contaminated with over 140 different chemical compounds which included heavy metals, polynuclear aromatic hydrocarbons (PAHs), volatile organic compounds (VOCs), and polychlorinated biphenyls (PCBs). Nearby residents use either cisterns or municipal water supplies because ground water in the area is of poor quality and yield. Due to the topography, the area immediately surrounding the site is not suitable for development. Actions: In 1981, six potentially responsible parties (PRPs) removed approximately 30 percent of the waste. Then, through emergency actions undertaken by EPA, the remaining drums were removed as well. EPA cleanup also included removing contaminated pond water, securing pond sediments, burying wastes under a clay soil cap 239 ------- AX. Taylor (Valley of Drums), Region 4 (Continued) to prevent further surface contamination, and constructing a surface water drainage diversion to reroute surface water. Re-routed surface water runoff was collected in a detention lagoon, then treated before being released into Wilson Creek. A 6-foot-high security fence with gates was added, and warning signs posted to prevent public access. Operation and maintenance at the site will continue. 24O ------- SUPERFUND SITE COMPLETED NFL SITE FACT SHEET Amnicola Dump, Region 4 Chattanooga, Tennessee Status: All completion requirements for this site have been met. Excavation and offsite disposal of the contaminated soil and debris were completed on August 5,1993. Once confirmatory samples indicated that the excavation area no longer contained soil levels above the cleanup goal, the area was filled with crushed stone for easy identification. At the final inspection on September 23, 1993, EPA determined that the Remedial Action had been successfully executed, and the site no longer posed any threats to human health and the environment. Deed restrictions have been placed on this inactive construction disposal site. Results and Benefits: The cleanup objective of no more than 100 ppm total polynuclear aromatic hydrocarbons (PAHs) in the surface soil was achieved by the excavation and offsite disposal of the contaminated soil and debris. Site institutional controls (defined in the Consent Decree) required the Potentially Responsible Parties (PRPs) to place deed restrictions on the property. The site no longer poses any threats to human health and the environment. Background: This site is an 18-acre inactive construction debris disposal dump in an industrial section of Hamilton County, Tennessee. Bordered on the south by Syn-Air Research, on the west by the Tennessee River, on the north by dense vegetation and vegetation-covered debris, and on the east by the Amnicola highway, the site is approximately 1/2 mile upstream from the water intake for the City of Chattanooga. However, no site-related contaminants have been found in this water source. Approximately 150,000 people live within 2 miles of the site, with the closest population center being 1/2 mile from the site. No residential areas are in the immediate vicinity. The dump was operated by the City of Chattanooga from mid-1970 to 1973. A large portion of the wood waste taken to the site during that time was incinerated by an air- curtain destructor, with the ashes placed onsite. Approximately 12 of the 18 acres were eventually filled with construction debris, wood ash, and other waste material. In the summer of 1973, the City of Chattanooga finalized closure of the site by covering the disposal area and constructing drainage ditches. In May 1982, sampling of the leachate indicated the presence of trichloroethyiene (TCE), vinyl chloride, and 1,2-trans dichloroethylene. The site was proposed for the National Priorities List (NPL) in December 1982, and was added to the final NPL in September 1983. In December 1986, EPA noticed that conditions at the site had changed. At that time, the site was being used as a storage area for heavy equipment, railroad ties, and scrap metaL The cap had been cleared of vegetation, much of the rip-rap (stones used for erosion control) along the bank had been removed, and leachate was noted in the southwest corner of the site. ------- Amnicola Dump, Region 4 (Continued) Actions: EPA initiated a remedial investigation (Rl) at the site in July 1987, Sampling data from the RI indicated that some surface soils contained PAHs above acceptable health-based levels. Other contaminants at the site, except for chromium in the ground water, were detected at concentrations below the drinking water standards. No site contaminants were detected in the ground water above the Alternate Concentration Limits (ACLs) established in the Record of Decision (ROD), All contaminated soil and debris were excavated and disposed offsite. Once cleanup levels were verified, the excavation area was filled with crushed stone for easy identification. In October 1993, quarterly ground-water monitoring was initiated, and EPA will review the situation again at the 5-year review. 242 ------- r^ ^ SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Beulah Landfill, Region 4 Escambia County, Florida Status: The remedy chosen for this site is no action. However, the ground water will be monitored to ensure that this action continues to be protective of human health and the environment. Results and Benefits: The site is a closed waste management unit. Access to the site has been restricted; therefore, it poses no unacceptable risk to human health or the environment. Background: The Beuiah Landfill is an 80-acre site comprised of two independently operated sections. The northern section operated from 1950 to 1960 and accepted mostly municipal trash. The southern disposal pits began operation in 1968 and accepted municipal trash, industrial waste, demolition debris, and municipal sludges until 1984, when the State ordered a halt to the operation of the pits. Sampling of surface soils detected polycyclic aromatic hydrocarbons (PAHs), pesticides, polychlorinated biphenyl (PCBs), solvents, and metals in the surface soils. Only metals, solvents, and PAHs are of concern in the ground water. Several residences within 3 miles of the landfill use the upper aquifer for drinking water, and Eleven Mile Creek, on the eastern edge of the property, is used for recreation downstream of the site. The landfill will be closed by the State of Florida in accordance with Florida Solid Waste Regulations. Actions: The selected remedial alternative is no action. The landfill will be closed under the applicable State regulations, Ground-water monitoring will continue to ensure that no action remains protective of human health and the environment. ------- Page Intentionally Blank 244 ------- _^ • J«M IF^^kfl SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Brown Wood Preserving, Region 4 Suwannee County, Florida Status: Cleanup remedial actions at this site have been successful. To ensure that the cleanup method continues to protect human health, a 5-year review was conducted in 1993. Results and Benefits: Cleanup at the site has paved the way for future uses that will be less detrimental to the environment. Although no construction or development at the site has occurred to date, approximately 40 acres (in these parcels) have been purchased for possible reuse. Based on the 1992 assessment, 1 acre of frontage at the site is valued at $8,000. The actions at this site provided protection to the surrounding communities, aEeviated the potential threat to ground-water supplies, and restored the site for potential reuse. Surface and surface water remediation goals were achieved. Background: The 55-acre Brown Wood Preserving site, located 2 miles west of the City of Live Oak, is an inactive wood-preserving facility. From 1948 to 1978, the wood-preserving facility was operated by several different companies. Each operator used creosote and pentachlorophenol (PCP) in the process. Residues eventually contaminated soil, surface water, and sediments at the site. In 1982, the Florida Department of Environmental Regulations (FDER) found approximately 25,000 cubic yards of phenolic wastes contained in a 5-acre unlined impoundment. Contamination by polycydic aromatic hydrocarbons (PAHs; the carcinogenic constituents of creosote) had extended to 1 acre of soil surrounding the impoundment and to soils and sludge in the immediate vicinity of the plant site. Water in a lagoon covered 3,000 cubic yards of creosote materials. Solidified creosote and PCP were also present in onsite storage tanks and retorts. Although contamination from the site had not impacted the aquifer supplying water to public and private wells in the area, there was concern about the potential threat of direct exposure to contaminated soil or dust. Homes, light industry, a 450-resident trailer park, a private airport, and a county storage yard are located within a 1/2 mile of the site. Actions: An initial Superfund removal action was completed in February 1988. Approximately 200,000 gallons of lagoon water were removed and treated, and 15,000 tons of contaminated lagoon sludge were excavated and solidified. Also, facilities and process equipment were destroyed, salvaged, or removed. Final remedial action included continued treatment and discharge of lagoon water and excavation, treatment, and offsite disposal of the most severely contaminated soil and sludge. A 14- acre biological treatment area was constructed for the remaining soEs. The treatment area was covered with clean fill. ------- Page Intentionally Blank 246 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Celanese Corporation, Region 4 Shelby, North Carolina Status: The source of contamination has been cleaned up at this site by remedial activities, effectively reducing the risk to public health and the environment. These actions, which included incineration of sludge and soil and stabilization of the residue, have reduced the possibility of direct contact with, or ingestion of, the contamination. These actions also minimize the amount of sludge and soil as a source of ground- water contamination. Celanese continues to operate an industrial facility on the site. Results and Benefits: EPA negotiated and signed two separate consent decrees with Celanese in which Celanese agreed to perform the cleanup of contaminated ground water, soil, creek sediments, and sludge at the site. EPA employed a multi-method approach for a comprehensive cleanup, including the use of a rotary-kiln incineration technique to conjunction with solidification/stabilization. Through close coordination between EPA and Celanese, offsite contaminant migration to streambeds and residential wells was avoided. Local residents were also provided an alternate water supply to reduce the potential health threats associated with the site. Background: The Celanese hazardous waste site is an active 469-acre polyester production facility in a rural area of Cleveland County, North Carolina. The plant combined synthetic chemicals to manufacture various home and industrial products. The site's facilities and land-use areas include the plant, wastewater treatment area, and adjacent recreational and wooded areas. For several years after the plant began operation in 1960, glycol recovery unit sludges were disposed directly into a number of pits. Office waste was also burned and buried in the pits. Another potential source area included an area that was used to store 2,000 to 3,000 drums. Three thousand people live within a 3-mile radius of the site, which is mostly forest and farmland. Actions: Upon discovery of organic compounds in the shallow ground water beneath the site in 1983, Celanese quickly notified EPA and conducted a preliminary investigation to determine the extent of remedial action needed. In 1984, meetings began between Celanese and EPA. The results of these meetings aided in addressing the public's concerns about safe drinking water. In February 1986, Celanese signed an agreement with EPA to begin investigating the nature and extent of the contamination. Wells and soEs were sampled and monitoring wells were put in place. In September 1988, Celanese signed the first Consent Decree to clean up the ground water using bioremediation, carbon adsorption, and air stripping. The system is monitored on a regular basis to ensure that there is no off-site migration, and that the target goals are met. In June 1989, Celanese signed ------- Celanese Corporation, Region 4 (Continued) a second Consent Decree to remediate the sludge, soils, and sediment. This phase called for the excavation and incineration of over 4,500 cubic yards of sludge and soil. A mobile rotary kiln incinerator was erected onsite, thus reducing transportation costs and eliminating possible chemical releases from transportation mishaps. Remedial activities began in January 1991 and were conpleted in August 1992. 248 ------- _^ ^ SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Chemform, Inc., Region 4 Pompano Beach, Florida Status: As a result of extensive removal action by the responsible party, conducted with EPA onsight, and due to a lack of significant ground-water contamination, a "No Further Action with Monitoring* alternative was chosen for ground water at the site. No soil contamination remains at this site that exceeds EPA's risk range. The ground water has been monitored quarterly for 1 year to verify that no site-related release of contaminants occurred. Monitoring has demonstrated ground water was not impacted from contaminants present in the soil prior to the removal. Results and Benefits: The selected remedy is protective of human health and the environment. The site has investment potential and has attracted interest from investors. Background: The 4-acre Chemform, Inc. site began as a precision machine shop manufacturing metal parts for the aerospace industry. Operations continued from 1967 to 1985 and included conventional machine making as well as the manufacturing of a high-tech electrochemical milling machine, which involved the use of electrolytic solutions and strong electric current In 1977, the Broward County Pollution Control Board found the company in violation of regulations for the discharge of industrial wastes onto the ground. In 1985, EPA found the soil and ground water to be contaminated with heavy metals and other contaminants and the site posed a potential threat to ground water. The Biscayne Aquifer is under the site and supplies all municipal water to Broward County. The site was placed on the National Priorities List (NPL) in 1989. Based on the results of further site investigations conducted in 1989, the responsible party conducted soil/drum removal activities with EPA oversight. Removal activities were conducted in two phases (1990 and 1993). Four municipal wells are located within 3 miles of the site and serve approximately 93,000 people. Actions: In 1990, several drums were removed. Approximately 600 cubic yards of soil were excavated in addition to the removal of debris, soil, and sludge from two underground storage tanks. Also, sampling and analysis of soils were conducted in 1990. Based on these analyses, additional soil was removed in 1991 and continues to be removed. ------- Page Intentionally Blank 250 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Chemtronics, Inc., Region 4 Swannanoa, North Carolina Status: At the pre-final inspection on February 16,1993, EPA and the State of North Carolina determined that the contractor for the Potentially Responsible Party (PRP) had constructed the remedy in accordance with the Remedial Design plans and specifications. Ground-water monitoring and operation and maintenance of the site will be performed. Currently, this is an active industrial site. Results and Benefits: Risk to human health from direct exposure to the waste disposal areas has been reduced by: capping each waste disposal area with a multi- layer cap; seeding the caps to prevent erosion; and restricting access to those areas with the use of chain-link fencing. A ground-water interception and extraction system deters the migration of contaminants and facilitates the onsite collection and treatment of contaminated ground water prior to discharge to a local treatment facility. The selected remedies eliminate the principal threat posed to human health and the environment by preventing the buried wastes from migrating into the ground water, by eliminating the further migration of contaminants in the ground water, and by treating the extracted ground water to health- based remediation goals. Background: This site occupies two valleys and encompasses approximately 1,027 acres of rural land in Buncombe County, near Swannanoa, North Carolina. The site lies on the southeast side of Bartlett Mountain, is moderately to heavily vegetated, and has a steep topography. All surface water from the site drains into small tributaries of Bee Tree Creek or directly into the creek. The creek flows into the Swannanoa River, and ultimately into the French Broad River. The site is adjacent to Bee Tree Creek, and the Pisgah National Forest is north of the site. Several residences are within several hundred feet of offsite disposal areas. A variety of products were manufactured onsite, including explosives, rocket fuel, Pharmaceuticals, incapacitating agents, and chemical intermediates. Chemical wastes and discarded manufacturing materials were disposed in 23 onsite areas and 3 offsite areas by means of buried drums, open trenches, and a drain field. Two areas were of particular interest to EPA; one area contained eight abandoned acid and organic waste pits, and the other area contained two lined basins used for neutralization and equalization of waste prior to discharge to the local wastewater facility. Beginning in 1971, solid wastes, solvents, acids, and organic wastes were either burned or disposed of in onsite pits and trenches. In 1979, the disposal pits were closed. Disposal activities were conducted on 10 acres of the site. Soil contaminants in all of the disposal areas consist of primarily Volatile Organic Compounds (VOCs). Ground-water contaminants identified include VOCs, nonvolatile organics, and metals. OKI ------- Chemtronics, Inc., Region 4 (Continued) Actions: The site was included on the first official National Priorities List (NPL) published by EPA on December 30, 1982. The Record of Decision (ROD) was signed on April 5, 1988, At the pre- final inspection on February 16,1993, EPA and the State of North Carolina determined that the PRPs contractor had constructed the remedy in accordance with the Remedial Design plans and specifications. The selected remedy included: the installation of a ground-water interception and extraction system downgradient of all of the disposal areas; bioassays on surface water/sediment to ensure no adverse impacts on streams during implementation of the remedial action and to establish a data base to measure the success of the remedial action; a review of the ground-water monitoring system and installation of additional wells for downgradient monitoring; the installation of a multi-layer cap (that includes a synthetic liner) on each disposal site, security fencing, vegetative covers, and a gas collection/ ventilation system where necessary; and sampling of the water and sediment in the onsite pond on the unnamed stream in the Front Valley, and remediation of the pond as necessary. 252 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET City Industries, Region 4 Goldenrod, Orange County, Florida Status: Remedial activities involving the cleanup of soils and drums have removed immediate dangers at the City Industries site, and it is now available for reuse. Ground-water treatment units were built in the spring of 1993. It is expected to take nearly 10 years to reduce pollutants in the aquifer to acceptable health levels. A portion of the site is currently being used for sheet metal work. The site will support industrial use in the future. Results and Benefits: The entire site cleanup cost is being collected from 152 Potentially Responsible Parties (PRPs). The site owner was found guilty of 17 counts of mishandling hazardous waste and received a jail sentence of 3 months for negligent and intentional dumping. The actions at this site reduced the threat to nearby residents and to underground sources of water. Background: The City Industries site operated from 1971 to 1983 as a hazardous waste handling facility. The 1-acre site is located in a light industrial area in the community of Goldenrod, a few miles from Orlando. Approximately 120,000 people live within 3 miles of the site. Soil and ground- water contamination occurred as the result of repeated mishandling and negligent dumping of waste at the site. Activities during the 12 years of site operation included storing, handling, and disposing of paints and varnishes, solvents, ink, and plating wastes. Hazardous volatile organic compounds (VOCs) included benzene, toluene, trichloroethylene, and tetrachloroethylene. In 1983, the owner abandoned the site, leaving nearly 1,200 drums of hazardous waste and 12,000 gallons of unknown liquids and sludge in a number of large holding tanks. Actions: After the site was abandoned in 1983, the Florida Department of Environmental Regulation (FDER) removed drums, sludge, and soil from the site. Ten tons of the most highly contaminated soil were taken to an EPA- approved hazardous waste landfill. EPA removed and heat-treated approximately 1,670 tons of additional soil. The decontaminated soil was then returned to the site. There also was concern about the potential danger of contaminated ground water spreading into lower and deeper aquifers used for drinking water. In 1990, EPA selected a ground-water cleanup plan that involved the construction of ground- water treatment units, which were constructed in 1993. 2S3 ------- Page Intentionally Blank 254 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Distier Farm, Region 4 Jefferson County, Kentucky Status: Construction of the entire ground-water treatment system and site restoration were completed 1989. Cleanup remedial activities have been completed. Long-term operation and maintenance of the ground-water treatment system began in 1990 and will continue until cleanup goals for the site are met. Results and Benefits: While long-term operation and maintenance activities are continuing to ensure that residual contaminants in the ground water remain within safety levels, cleanup of contaminated soil has eliminated the threat to nearby residents and the environment. Because of the effectiveness of the cleanup, the site's value has returned to market value. Given the industrial setting in conjunction with the river access, reuse of the site is imminent once the institutional controls are removed. Background: The 3-acre Distier Farm site was discovered in 1977, when EPA launched a search for sites previously used to store industrial wastes. In January 1979, EPA responded to an emergency situation when flood waters scattered drums of industrial waste stored at the site along the flood plain of Stump Gap Creek, a tributary of the Ohio River. Actions: During the initial cleanup effort, underground drum disposal trenches were discovered. EPA conducted various studies from 1979 through 1984, confirming evidence of soil and ground- water contamination from volatile organic compounds (VOCs) as well as heavy metals from former drum storage practices. A total of 832 drums containing chemicals characteristic of the paint and varnish industry were recovered, recontainerized, and moved to higher ground. Under the direction of the Kentucky Department for Natural Resources and Environmental Protection, the drums were later sent to an approved disposal facility. The final site cleanup actions began in 1988. Cleanup activities included excavating and removing all contaminated soils; backfilling with natural granular soils; and extracting contaminated ground water for treatment. After the soil was removed, the waste pits were backfilled and the entire site was graded, cultivated, and covered with grass to control erosion. A ground-water treatment system has been installed. ------- Page Intentionally Blank 256 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Flowood Site, Region 4 Flowood, Mississippi Status: At the pre-final inspection on July 20, 1993, EPA and the State of Mississippi determined that the contractors had constructed the remedy in accordance with the Remedial Design plans and specifications. Ground-water monitoring and operation and maintenance of the site will be performed. Deed restrictions were imposed to ensure that the remedy remains protective of human health and the environment. The site is currently an active industrial site. Results and Benefits: Treated waste was capped onsite to protect public health and the environment from exposure to contaminated soils through inhalation, direct contact, and surface runoff. Also, the solidification/stabilization of the contaminated soil will prevent the spread of contaminants to other soils or the ground water. Cleanup levels developed for soil at this site are consistent with those generally applied to sites which may be returned to residential use. Background: Located along Highway 468 on the east side of the Pearl River, the site covers approximately 225 acres and consists of wetlands and lowlands of the alluvial plain of the Pearl River. The site is separated from the river by levees. The surrounding land contains industrial, agricultural, commercial, and residential areas, as well as undeveloped swamp and forest areas. The site is bordered by various industrial and commercial operations on the north and east, and forested areas to the west. The nearest residence is more than 1/2 mile to the south. Approximately 940 people lived in the town of Flowood in 1988. Two manufacturing facilities have existed at the site since the 1940s. One facility is a corrugated box company that has been operating since the 1950s. The other facility has been manufacturing stoneware cooking pots since the 1970s. The previous owner manufactured ceramic tiles at this facility from the 1950s until the 1970s. In 1982, State officials discovered that wastewater containing elevated levels of lead was being discharged into an onsite canal. Subsequent sampling detected lead contamination in the water and sediments from the canal. The State began an emergency treatment and removal process to address the contaminated wastewater; however, the process was discontinued when higher levels of lead were found in the canal adjacent to one of the manufacturing sites. In 1983, EPA investigations revealed high lead levels in onsite sludges, sediments, and surface soil in five areas around the site. Low levels of contamination were also found in the ground water in the immediate vicinity of the disposal areas. Action: At the request of the State, the site was proposed for inclusion on the National Priorities List (NPL) in June 1983, and was added to the final NPL in September 1984. The remedy specified in the Record of Decision (ROD) on September 30, 257 ------- Flowood Site, Region 4 (Continued) 1988, included excavating and solidifying/ stabilizing 6,000 cubic yards of lead- contaminated soils and sediments; backfilling treated materials into the slough/canal area; and covering, regrading, and reseeding the area. Deed restrictions were imposed on the area where treated materials were placed; however, later site investigations revealed additional contamination beneath certain buildings. Institutional controls (deed restrictions) were imposed on those areas to prevent a future use of the property that could disturb the integrity of the containment of the contamination provided by the building slabs. Ground-water monitoring and operation and maintenance of the site will be performed by the Potentially Responsible Parties (PRPs). However, no remedial action has been performed on the ground water. Upon completion of the remedy, hazardous substances remained onsite above levels allowing for unlimited use and unrestricted exposure. Therefore, a statutory 5-year review will be conducted before June 22, 1997. 258 ------- SUPERFUND SITE COMPLETED NPL SITE PACT SHEET General Tire and Rubber Co., Region 4 Graves County, Kentucky Status: The facility associated with this landfill continues to manufacture tires and operates six ground-water extraction wells that provide the facility with non-contact cooling water. In the fall of 1985, to prevent erosion, a 2-foot cover was placed over the landfill, and the surface was seeded. The facility also performs operation and maintenance activities at the landfill, and is negotiating with the State to develop a ground- water monitoring plan. The site currently is a closed landfill. Results and Benefits: Approximately 1,500 people obtain drinking water from five municipal wells within 3 miles of the site; however, the six ground-water extraction wells used for non-contact cooling water provide a significant level of protection to human health by diverting the ground-water flow away from these wells, as well as Mayfield Creek. Therefore, no private or public water supply wells are within dose proximity to the landfill that may be adversely impacted under the current hydrogeologic conditions. Based on the data collected in the remedial investigation, and the potential current and future risks estimated in the baseline risk assessment, no further action is necessary at this site to provide additional protection to human health and the environment. Background: This site is a 58.5-acre landfill located 1/3 mile northeast of the company's tire manufacturing plant. The site is located east of State Highway 45, approximately 2 miles north of the town of Mayfield in Graves County Kentucky. The landfill is bounded by farmland to the north and southeast, vacant land and the tire plant to the southwest, a railroad to the west, and a wooded area to the east. The eastern edge of the landfill roughly follows Mayfield Creek, approximately 500 feet from the site. Between 1970 and 1984, the landfill was used exclusively by General Tire's Mayfield facility for the disposal of hazardous and nonhazardous plant wastes, including: scrap rubber and tires; trash, wood, and paper packaging; rejected product material; scrap hydraulic oil; non- reclaimable lubricating oil; waste cement mixtures containing solvents; carbon black; and floor sweepings. An estimated 152 tons of hazardous wastes were disposed of in the landfill (with the State's approval) between 1970 and 1979. Disposal of hazardous wastes ceased in 1979. Heavy metals, including cadmium and lead, as weE as volatile organic compounds (VOCs), have been detected in the ground water, surface water, sediments, and soils; however, the concentrations were within EPA's acceptable limits. Ingestion of contaminated ground water is the primary potential exposure pathway. Actions: In 1979, disposal of hazardous wastes ceased in accordance with RCRA, In late 1980, Kentucky Department of Environmental Protection required the facility to implement a ground-water monitoring program in the vicinity 259 ------- General Tire and Rubber Co., Region 4 (Continued) of the landfill. In September 1984, General Tire submitted a closure plan for the landfill, and in the fall of 1985, a 2-foot cover was placed over the landfill, and the surface was seeded to prevent erosion. Preliminary closure was granted in February 1987, and the site conducted post-closure monitoring from that time until February 1989. In December 1989, General Tire entered into an Administrative Order by Consent to perform the remedial investigation/feasibility study (RI/FS). By February 1990, the site was listed on the National Priorities List (NPL), and on October 22, 1990, the RI/FS commenced. Final closure has not yet been granted by the State. 260 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Gold Coast Oil, Region 4 Miami, Florida Status: As a result of remedial actions, a ground-water treatment system that uses an air-stripping technique has been installed. This treatment will continue until drinking water standards are met. The public water supply plant installed a treatment system to remove heavy metals and volatile organic compounds (VOCs) from drinking water. The site is currently vacant, with a fence around the site to limit access. Results and Benefits: Protection of Miami's drinking water was one of the most significant goals accomplished by this Superfund action. Fourteen companies formerly associated with the site agreed to finance and carry out the cleanup. Surface cleanup goals have been achieved. Background: From 1971 to 1982, the Gold Coast Oil Corporation operated a solvent reclaiming facility and bulk storage area on a 1.5-acre site leased from the Seaboard Coast Line Railroad. In 1981, EPA found over 2,500 corroded and leaking drums containing sludge from the solvent distilling operation, contaminated soils, and paint waste on this site located in Miami, Florida. The major concern was that lead, zinc, and various organic pollutants found in the shallow ground water at the site might reach and contaminate the Biscayne Aquifer, a sole source of drinking water for the area around Miami. Actions: After evicting Gold Coast Oil from its property, Seaboard removed the leaking drums, contaminated sludges, soil, and over five truckloads of contaminated bulk liquids. In 1987, EPA chose a remedy that included excavating and removing soil and sludges to be treated offsite. A ground-water extraction and treatment system was installed. Air stripping will be used to remove organics from the ground water. ------- Page Intentionally Blank 262 ------- f*. *•* p«8 SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Hollingsworth Solderless Terminal, Region 4 Fort Lauderdale, Florida Status: All site construction activities are complete. Activities necessary to achieve ground-water remediation and site completion are ongoing; however, these activities are anticipated to be completed within 10 years. Operation and maintenance activities are being conducted through a fund-financed action. The site is currently being used for to manufacture solderless electrical components. Results and Benefits; The selected remedy (onsite treatment of contaminated soE and ground water) eliminates the principal threat posed to human health and the environment by preventing further migration of volatile organic compounds (VOCs) and by treating the soil and ground water to health- based levels. Background: This site is located on 3.5 acres in an industrial area of Fort Lauderdale, Florida, and is bordered by streets, alleys, and other industrial properties. The nearest residential area is approximately 200 yards southeast of the site. Several communities in the vicinity of the site draw water from the shallow Biscayne Aquifer. The primary water supply for the City of Fort Lauderdale is Prospect Well Field, which taps the Biscayne Aquifer for water supply. This well field is located 2 miles west of the site. The Biscayne Aquifer is the primary source of drinking water for 3-million residents of south Florida. The facility was in operation from 1968 to 1982 as a solderless terminal manufacturer. Activities at the site included using molten salt baths, degreasing parts, and electroplating. The wash and process waters that contained varying concentrations of trichloroethylene (TCE) and heavy metals were disposed in onsite drainfields, by surface discharges, and in a 100-foot deep injection well. In addition, wastes periodically entered the ground through spillage or other similar drainfields. The primary contaminants of concern are VOCs, TCE, vinyl chloride, and 1,2-trans-dichloroethene. Action: The site was included on the first official National Priorities List (NPL) publishedby EPA in 1982. The Potentially Responsible Party (PRP) initiated remedial investigation activities in 1983. EPA subsequently conducted the feasibility study and issued a Record of Decision (ROD) in 1986. EPA completed the remedial design in 1988. At the final inspection on March 18, 1993, EPA and the State of Florida determined that EPA's contractor had constructed the remedy in accordance with the remedial design plans and specifications. The selected remedy included: excavation, onsite treatment (aeration), and replacement of VOC-contaminated soil; and extraction, onsite treatment (air stripping), and reinjection of ground water. Soil cleanup levels were achieved in July 1991, and the cleanup criteria for ground water are expected to be achieved in less than 10 years. ------- Page Intentionally Blank 264 ------- m SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Independent Nail Company, Region 4 Beaufort, South Carolina Status: AM remedial activities have been completed at the site, and all surface contamination has been cleaned up. Additionally, EPA has determined that ground-water resources do not pose a threat to the public and that no cleanup measures are needed to address the low levels of contamination. Extensive evaluations of the completed remedies and site sampling have determined that the site is now safe to nearby residents and the environment. The site is currently being used for a nail coating operation. EPA has begun the process to delete this site from the National Priorities List (NPL), Results and Benefits; Three Superfund sites are in Beaufort County, all above the Ocala Aquifer that runs through Beaufort County, along Georgia's coast, and under the entire State of Florida. According to EPA research data, these sites and other Superfund sites within 3 miles posed the greatest threat to the area's drinking water supply. The initial removal actions have stopped the spread of contamination to the Ocala Aquifer, which supplies water to residents of Beaufort, Colleton, Jasper, and Hampton counties. Independent Nail Company, the current owner, operates a paneling nail coating process and has never discharged wastewater to a lagoon. Background: The 25-acre Independent Nail Company site is located about 3 miles northwest of Beaufort, South Carolina, in an area of fields, woodland, and wetland. Until 1980, the former owner, a manufacturer of screws and fasteners, discharged approximately 33,000 to 75,000 gallons per day of plating wastewater into an unlined infiltration lagoon. In 1980, Independent Nail Company purchased the facility and discovered ground-water contamination present in monitoring wells. Ground-water investigations conducted at the site by the State in 1975 and 1980 identified metals contamination in the ground water. Although the State took no action, concentrations of chromium and lead exceeded drinking water standards. The investigation also indicated that cadmium, nickel, and zinc were also contaminating the ground water, to 1982, EPA found heavy metal contamination that included cadmium, chromium, nickel, and zinc in soils and surface water in and around the lagoon and drainage ditch at the site. Sampling conducted in 1985, however, showed no metal contaminant concentrations exceeding drinking water standards. There was no risk to human health or the environment from the low level of contamination in the ground water. Endangered and threatened species may exist in the area near the site. Actions: In 1988, EPA fenced the area around the lagoon to restrict access to the waste onsite. Because the site is located in a major recharge zone, EPA chose to excavate soil and lagoon sediments. Contaminated soil was treated by stabilization and solidification. Following treatment, the sofl 265 ------- Independent Nail Company, Region 4 (Continued) sediment was placed in the excavated lagoon, covered with 6 inches of soil, and vegetated. The selected remedial action for ground water was no action. 266 ------- SUPERFUND SITE COMPLETED NPL SITE PACT SHEET Lee's Lane landfill, Region 4 Jefferson County, Kentucky Status: EPA finished cleaning up the Lee's Lane Landfill site in 1987 and is now conducting operation and maintenance remedial activities, scheduled to last for 30 years. These activities include quarterly sampling of monitoring wells and inspections of the site and components of the gas collection system. The site is currently a closed landfill, located in the fioodplain of the Ohio River. Results and Benefits: Due to the emergency response activities and the swift completion of the remedial actions, the threats of explosion, contaminated ground water and surface water, and air pollution have been removed. Safe drinking water has been provided to nearby residents, and the site has been stabilized against the constant threat of flooding. Surface remediation goals have been achieved. Background: Lee's Lane Landfill is a 112-acre landfill and junkyard that lies in the fioodplain along the Ohio River. This operation received over 2- million cubic yards of domestic, commercial, and industrial wastes between the 1940s and 1975. Approximately 212,400 tons of these wastes were various chemical wastes. Sand and gravel quarrying occurred on the site before and during the property's use as a landfilL Portions of the landfill flood almost every year. In 1975, residents living next to the site reported flash fires around their water heaters. After explosive levels of methane gas were detected, seven homes nearby were evacuated and purchased by the local authorities. The State closed the landfill that same year. County, State, and Federal agencies documented the presence of methane and toxic gases venting from the landfill. Actions: In October 1980, after methane was discovered in other homes nearby, the State installed a gas venting system at the landfill. Additionally, State personnel discovered 400 exposed drums of hazardous materials, some highly flammable, on the Ohio River Bank next to the landfill. In October 1981, the site owners pumped the liquid wastes from the drums and took them to an approved disposal facility. The drums and the solid wastes were removed from the river bank and buried onsite. EPA selected a remedy for this site in 1986, which included providing for a gas collection system; installing alternate water supplies; removing exposed drums; implementing institutional controls; and monitoring ground water, gas, and air. to 1987 and 1988, EPA emergency staff performed cleanup activities at the landfill, including site security and migration control. Workers also regraded and reseeded the backfill that floods had washed out. ------- Page Intentionally Blank 268 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Lewisburg Dump, Region 4 Marshall County, Tennessee Status: Construction of the final remedial action was completed in September 1993. As part of operation and maintenance, ground-water monitoring is planned to continue for 5 years to assess the effectiveness of the remedy. Deed restrictions have been placed on the property to limit future land and ground-water use. The fenced site is currently a closed landfill. Results and Benefits: Due to the implementation of the remedy, the site is not expected to pose a threat to human health or the environment. The potential exposure to surface contaminants has also been eliminated. The selected remedy reduces the potential of contamination reaching the ground water and quarry pond surface water. Background: The Lewisburg Dump is a 20-acre tract of land located among farms and pastureland about I/ 2 mile north of Lewisburg. The site is an abandoned 6-aore limestone quarry, of which 4 acres were used as a municipal and industrial dump from the 1950s to 1979. The site also contains a 2-acre pond adjacent to the landfill that was used for illegal dumping. In 1973, the Tennessee Department of Public Health conducted a study that found that the quarry was an unfit location for a sanitary landfill. The City of Lewisburg initiated interim closure of the dump in 1979 by placing clay and soil over the waste. The Lewisburg Dump was proposed for addition to the NPL on December 1, 1982, and was placed final on the NPL on September 1, 1983. Plastics, heavy metals (including copper, aluminum, barium, manganese, and zinc), and VOCs were found in the soil, leachate, and surface water. Of the 52 contaminants identified in site media, only 6 contaminants were identified frequently or at significant levels. Two contaminants in particular, copper and bis(2- ethylhexyl phthalate), required the implementation of remedial action. A well survey identified 123 households within a 2-mile radius with at least one well on their property. Approximately 70 of these households use ground water for domestic or livestock purposes. Most residents near the site do not use ground water; they are connected to the municipal water supply. No elevated contaminant levels related to the Lewisburg Dump site contamination were found in any offsite ground water. Actions: The selected remedy included removal and offsite disposal of site surface debris, removal and offsite disposal of all debris in the quarry pond, removal and offsite disposal of hazardous waste in drums, replacement of plastic test-pit caps with landfill cap material, regrading and compaction of the existing landfill cap, institutional controls, and long-term monitoring. Because of the karst geology, dye-tracer studies were conducted to determine the most adequate ground-water monitoring points. Ground-water monitoring revealed only bis(2- ethylhexyl)phthalate present at levels above drinking water criteria. Removal of the metallic •>RQ ------- Lewisburg Dump, Region 4 (Continued) waste (source material) from the quarry pond serves to eliminate further leaching and metal contamination in the waters of the quarry pond. Regrading and proper compaction of the landfill cap limits infiltration of water into the landfill cap, thereby eliminating excessive leachate generation. 27O ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Luminous Processes, Inc., Region 4 Athens, Georgia Status: As a. result of remedial action, a well-known fast- food chain currently occupies this site. Results and Benefits: All remediation including the subsequent backfilling and seeding were completed within a 5-month period. As a result of the cleanup activities, the site no longer posed a threat to the neighboring community or the surrounding environment. Due to the current reuse, the property is valued at nearly $500,000 dollars. Background: At a 1-acre site in Athens, Georgia, the Luminous Processes, Inc. used radioactive isotopes to paint watch and clock dials from 1952 to 1978. In 1980, the company abandoned the site, leaving contaminated structures and soil contaminated with radium-226 and tritium from the previous manufacturing processes. Actions: The remedial action at the site involved complete removal of the radioactive contaminants to ensure that radiation and radioactive material levels were reduced to acceptable levels. In 1982, 18,015 cubic feet of soil and materials contaminated with radium-226 were removed for offsite disposal. Contaminated structures inside the building and contaminated soil and materials in adjacent septic tank tile field areas were also removed. ------- Page Intentionally Blank 272 ------- -„ ^ SUPERFUND SITE COMPLETED NPL SITE PACT SHEET Miami Drum Services, Region 4 Miami, Florida Status: The Miami Drum Services site has been remediated through a combination of removal and remedial activities. A final closeout report was signed for the remedial cleanup in March 1993. The site is currently being used as a public transit maintenance yard. Results and Benefits: County, State, and Federal actions have protected the drinking water supply for almost 1-million residents in Bade County, Florida. Drinking water supplies have been safeguarded by the excavation and water treatment remedies performed at the site. EPA and the county have divided the cost for installing air strippers at the Preston and Hialeah Water Treatment Plants located near Miami, Florida. Two public well fields, impacted by the contamination, are now back in use after construction of the air stripping system. Surface cleanup standards and ground- water cleanup standards have been achieved. Background: This 1.3-acre site was an inactive drum recycling facility located in a predominantly industrial section of northwestern Dade County. An auxiliary well field is located 750 feet west of the site; water from these wells is used during peak water-use periods. The facility operated for approximately 15 years and handled drums received from a variety of industries, such as chemical, plating, polishing, textile, and paint manufacturing. As many as 5,000 drums containing industrial waste were observed on the site by State officials while the company was in operation. The wastes have been recorded as including corrosives, solvents, pesticides, phenols, and toxic metals. As a result of county actions, a local court order required the company to cease operation in June 1981. The Biscayne Aquifer is approximately 3 feet below the natural ground surface at the site. Analytical testing results indicated that the soil and ground water beneath the site were contaminated. The soils showed high concentrations of phenols, heavy metals, oils and grease, and pesticides. Past testing had also shown that water taken from the top few feet of the Biscayne Aquifer showed high concentrations of phenols, oil and grease, cyanide, and volatile organic compounds (VOCs). The abandoned site was acquired by Dade County in October 1981 through eminent domain proceedings for construction of a mass transit (train) maintenance and storage yard. The Miami Drum Services site was listed on the National Priorities List (NPL) in 1983. Actions: When the Dade County Department of Transportation purchased the Miami Drum Site in 1981, it decided to undertake remedial cleanup of surface material and apply for reimbursement under Superfund. With coordination between EPA, the County, and the State, over 250,000 cubic feet of hazardous debris and soil were excavated for disposal at an authorized hazardous waste disposal facility. 27S ------- Miami Drum Services, Region 4 (Continued) Additionally, 650,000 gallons of ground water the water was moving offsite in a westernly and were treated prior to recharge to the Biscayne southernly direction. The movement was Aquifer, These immediate soil and ground-water attributed to the natural ground-water flow and remedial actions occurred during December the specific effects of well field pumping in the 1981 and January 1982. area. Source removal had eliminated the potential for future ground-water EPA and the State conducted a remedial contamination. Installation of air stripping investigation in 1982, with drilling of monitoring devices at the Miami Water Treatment Plant has wells performed by the U.S. Geological Survey been completed to ensure residual contaminants in 1983. Results of these efforts showed that are removed. the Biscayne Aquifer was contaminated and that 274 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Monsanto Corp. (Angus), Region 4 Augusta, Georgia Status: All remedial activities at this site have been completed. The drinking water standard has been attained. Ground-water monitoring will continue for a minimum of 2 years. The site is currently an active, industrial facility. Results and Benefits: The remedial action selected at this site has protected human health and the environment from potential exposure to the arsenic- contaminated ground water in the surficial aquifer. The actions have minimized the migration of contamination from the onsite landfills toward Phinizy Swamp and the underlying aquifer, and has restored the ground water in the surficial aquifer to drinking water quality. Background: The Monsanto-Angus Plant has been in operation since 1962. Prom 1964 to 1974, two landfills (0.1 acre each) were used to dispose of solid waste and sludges containing arsenic trisulfide. Plant officials estimated that approximately 1,500 pounds of arsenic had been placed in these landfills. In 1971, Landfill #1 was covered with soil, crowned with gravel, and seeded with grass. In 1977, Landfill #2 was dosed by Monsanto in the same manner as Landfill #1. The site is located in an industrial park that is zoned for heavy industrial use. Within a 3-mile radius, land is zoned commercial, residential, and industrial. The nearest residential area is 1/2 mile northwest of the site. Phinizy Swamp is located approximately 1 mile northeast of the site. The Tuscaloosa Aquifer, a source of drinking water for the area, lies beneath the site. Actions: Contamination problems were first identified by the State in August 1975. In June 1979, Monsanto began monitoring the quality of the ground water at the site. In 1980, at the State's request, Monsanto installed additional monitoring wells and discovered arsenic levels that exceeded the federally regulated drinking water standards in the surficial aquifer. During November 1983, Monsanto excavated the waste from both landfills and transported it to an approved landfill. This site was added to the National Priorities List (NPL) in September 1984. EPA selected a remedy that consisted of continued monitoring of arsenic levels in the surficial aquifer. Additionally, contaminated ground water will continue to be extracted, and then discharged and treated at the town's water treatment plant should arsenic levels be above safe standards. •XT* ------- Page Intentionally Blank 276 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Mowbray Engineering Company, Region 4 Greenville, Alabama Status: As a result of remedial activities, site cleanup standards were met in 1991. The site is currently being reviewed by EPA and was expected to be deleted from the National Priorities List (NPL) in 1994. The site currently consists of an unoccupied building and parcel of land. Results and Benefits: Sensitive wetlands were spared further contamination by EPA's immediate action. Contaminant migration offsite into Persimmon Creek, which is used for fishing and other recreational activities, has been stopped. Cleanup activities have eliminated all soil, surface-water, and ground-water contamination, making the site safe to nearby residents and the environment. Background: The 3-acre Mowbray Engineering Company is located on a swamp in Butler County, Alabama. An aquifer underlying the site supplies approximately 11,400 residents with drinking water. For more than 20 years during its electrical transformer repair operations, the Mowbray Engineering Company annually disposed of approximately 9,000 gallons of polychlorinated biphenyls (PCBs) containing waste transformer oils. In 1981, EPA found that the soil and ground water were contaminated with PCBs, volatile organic compounds (VOCs), and pofycyclic aromatic hydrocarbons (PAHs). Also, fish caught in 1981 at the confluence of Persimmon Creek and Tanyard Branch and downstream were contaminated with PCBs. In 1990, the potentially responsible parties (PRPs) signed a Consent Decree in which they agreed to assume complete responsibility for the operation and maintenance of the site and to pay for past investigation and cleanup activities. Actions: In 1981, initial emergency cleanup efforts removed the top 6 inches of PCB-contaminated soil. EPA's remedy included: excavating, disposing of, and removing underground storage tanks; treating or disposing of waste oils in the swamp area and in the underground storage tanks by a method approved under the Toxic Substances Control Act (TSCA); diverting surface runoff around the swamp area; excavating contaminated soils and incinerating them on or off the site, or alternatively stabilizing and solidifying them; grading and replanting the swamp, and property closing the abandoned water supply well onsite; and conducting operation and maintenance activities at the site as necessary. 9.T7 ------- Page Intentionally Blank 278 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Newport Dump, Region 4 Wilder, Kentucky- Status: Remedial construction was completed in February 1991. The unsecured site is currently undergoing operation and maintenance activities to prevent offsite migration of contaminants via surface and ground water. EPA is completing the final processes for deleting the site from the National Priorities List (NPL). Leachate collection has been discontinued. Gas monitoring wells are used to detect toxic or explosive gases that might be produced by the landfill. The site is currently being used for informal recreation; additional reuse purposes are being considered. Results and Benefits: Through the extension of the leachate collection system, restoration of the clay cover, and a multimedia monitoring program, water supplies used by over 75,000 people have been protected by Superfund actions. The area will no longer pose a threat to nearby residents and to Licking Creek, a tributary to the Ohio River. Although currently unoccupied, the site is apparently used by area residents for recreational activities with all-terrain vehicles. The Northern Kentucky Port Authority (NKPA) paid for the proper closure of the site as well as its operation and maintenance. Background: The Newport Dump site is a former municipal landfill located in the City of Wilder (population 633), about 3 miles south of Newport, Kentucky, a suburb of Cincinnati, Ohio. The 39-acre site is bounded on the north and east by a small industrial park and on the west by Licking Creek. About 250 feet downstream of the site is the main raw water intake for the Kenton County water treatment plant, which serves about 75,000 consumers in Kenton and Boone Counties in Kentucky. The site was permitted as a landfill for disposal of residential and commercial wastes from the late 1940s until its closure in 1979. During this time, the City of Newport was cited for numerous permit violations including open burning, absence of daily cover, onsite ponding of water, uncovered refuse, presence of leachate, and handling of hazardous waste without a permit. In 1978, the City of Newport and the Kentucky Department of Natural Resources and Environmental Protection (KDNREP) entered into an Agreed Order to bring about the closure of the site as a landfill. In 1979, the site was purchased by NKPA with the understanding that the new owner would be responsible for maintenance and proper closure. NKPA and KDNREP then reached an Agreed Order requiring proper closure of the site. Actions: In efforts to comply with the Agreed Order, NKPA installed a leachate collection system, regraded portions of the site, constructed a clay cap over the waste, and covered the area with vegetation. Although NKPA made these initial remedial ------- Newport Dump, Region 4 (Continued) efforts, it lacked adequate funding to implement the Agreed Order with the State for closure. Subsequent site inspections by EPA in 1985 indicated leachate breakouts containing lead, chromium, and PCBs seeping into the Licking River. EPA initiated the remedial investigation in 1985 and completed it in 1986. EPA implemented a monitoring program of surface -water, ground water, and soil; restored and extended the leachate collection system; and restored, regraded, and revegetated the existing clay cover. The 5-year review conducted in 1993 found generally acceptable levels of contaminants in the various media. Increased frequency of surveillance and maintenance was recommended. Minor damage to the clay core has occurred due to vehicle activity on the site. It was noted that as long as the 1988 Operations and Maintenance Plan is followed, there should be no need to secure the site. 280 ------- ^Mfe jMM ^^"^*^ SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Parramore Surplus, Region 4 Mount Pleasant, Gadsden County, Florida Status: The Parramore Surplus Company (PSC) site is an active, private facility that stores and resells surplus government products purchased from naval air bases in Florida and Alabama. Remediation of contaminated soil was conducted, and subsequent studies determined that the site did not pose a significant threat to human health or the environment. No further action is required at this site. Results and Benefits: Cleanup activities including the removal of hazardous chemicals and contaminated soil have eliminated possible sources of ground- water contamination. Post-ROD (Record of Decision) sampling revealed that the site poses no threat to human health or the environment. Background: The PSC site, located in Mount Pleasant, Florida, is approximately 25 acres. This site has conducted warehousing and selling of government products since 1972. Some of the products include paint residues, waste oil, alcohols, and degreasers. In March 1982, the Florida Department of Environmental Regulation (FDER) inspected the site and estimated that 400 to 600 drums were stored onsite and that many were leaking and killing the surrounding vegetation. The site is located in a low density residential area with approximately 20 homes in the immediate vicinity of the site. Less than 100 people live within a 1-mile radius of the site. The area surrounding the site is primarily agricultural and forest land. No major water bodies are in the PSC site. Actions: At the request of the FDER, EPA conducted a site inspection and collected soil and waste samples in May 1982. Laboratory analysis of the samples collected revealed high concentrations of PCB-1254. Consequently, the owner conducted cleanup activities that included the removal of hazardous chemicals and contaminated soil. Both FDER and EPA inspected the Parramore site on July 28, 1983, and noted that the conditions of the cleanup agreement had been met. During the investigation, three additional contaminated areas were observed. At the request of FDER, the owner removed contaminated soil in these areas. The site was added to the National Priorities List (NPL) on September 8, 1983. EPA denied a subsequent request by FDER to delete the site from the NPL because no data existed to show that the soil removal was an effective remedy of the surface contamination. In March 1985, EPA conducted a modified remedial investigation and detected elevated levels of organic compounds at three locations in the soil. Samples taken from well points contained high amounts of sediments, and the analytical results were not considered to be indicative of true site conditions. A Public Health Evaluation (PHE) was completed by EPA in August 1987 to determine what risk, if any was posed to human 281 ------- Parramore Surplus, Region 4 (Continued) health from the contaminated soil. Also, a ground-water quality assessment was conducted to assure that no ground-water contamination occurred from past releases of hazardous materials. The ROD, signed on September 15, 1987, specified the installation of ground-water monitoring wells, followed by two periods of ground-water sampling and analyses to assure that ground water was not adversely impacted by past releases of hazardous substances. If the ground-water contaminant levels exceeded allowable concentrations, a detailed investigation would be initiated. If these levels did not exceed applicable or relevant and appropriate requirements, and did not pose significant risk to human health or the environment, no further action would be taken. Based on the results of the ground-water analysis, EPA (with concurrence from FDER) determined that no further action was necessary, and the site was deleted from the NPL in February 1989. 282 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET PCB Spills, Region 4 243 Miles of Road, North Carolina Status: As a result of the completed cleanup remedial actions and the removal of site contamination, EPA, in consultation with the State, deleted the site from the National Priorities List (NPL) on March 7, 1986. Results and Benefits: The disposal of contaminated soil was completed in 1982, and the landfill that was newly constructed for the soil was capped, graded, and vegetated. Subsequent testing indicated that no contamination was present in the ground water, surface water, or plant and animal life in the area of the PCB spills. Background: Between June and August 1978, over 30,000 gallons of industrial waste were deliberately discharged along 243 miles of highway shoulders in 14 counties of North Carolina. Analysis of samples by EPA found Arochlor- 1260, a polychlorinated biphenyl (PCB). The individuals criminally charged with the release were found guilty by the Federal District Court. Actions: To reduce mobility, the PCB waste material was covered with activated charcoal and liquid asphalt. Because of the quantity of soils involved and the distance to approved landfills, the State decided to construct a new landfill. North Carolina sought EPA approval on December 12, 1978, for a PCB landfill in Warren County. EPA approved the site 6 months later, subject to compliance with a number of technical and procedural conditions. The State received a Cooperative Agreement for Superfund financing of the cleanup in May 1982. Under the Agreement, the State received $2.5 million to construct the landfill; remove, transport, and dispose of the contaminated soils; and reconstruct the highway shoulders. Soil sampling was conducted at the beginning and end points of the strips of highway shoulder to ensure that the contaminated soils would be removed. These areas then were excavated and filled with clean soil. 283 ------- Page Intentionally Blank 284 ------- f** ^M IpP^f SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Peppers Steel & Alloys, Region 4 Medley, Dade County, Florida Status: Construction at this site was completed in January 1989 after beginning in March 1987. However, ground-water monitoring to assess the effectiveness of the remedy is continuing. The site is currently a closed landfill in the form of a monolithe. Results and Benefits: The selected remedy achieves surface remediation goals and makes the site safe for nearby residents and the environment. Free oil was removed from the ground and ground water, and contaminated soil was stabilized prior to onsite disposal. However, monitoring is continuing to ensure the long-term effectiveness of the remedy. Recent monitoring indicates that ground water on the site has been cleaned up to the action levels specified in the Record of Decision (ROD). Background: Peppers Steel & Alloys site is located in an industrial area about 10 miles north of Miami and 13 miles inland from the Atlantic Ocean. Contamination of the site resulted from industrial activity that has been ongoing since the 1960s. Onsite activities have included battery, concrete products, and fiberglass boat manufacturing; truck and heavy equipment repair; sandblasting and painting services; automobile scrap operation; and recycling of electrical transformers. Contamination was identified in the soil, sediments, and ground water in and around the site. Contaminants of concern include free oil, polychlorinated biphenyls (PCBs), lead, and arsenic. Actions: The first action, taken in 1983, was the immediate removal of PCB-contaminated soil and free floating oil from the shallow subsurface. The selected remedy included collection of aU free oil and disposal offsite; excavation of soils exceeding 1 ppm of PCB, 1000 ppm lead, or 5 ppm arsenic; solidification of these soils with a cement-type mixture and placement onsite; institutional controls to ensure future land use compatible with the remedy; and monitoring of the effectiveness of the remedy. The monolith was then capped with processed soil and covered with 12 inches of crushed limestone as a base for future land use. Ground- water monitoring will continue on the site. Actions not yet complete include the implementation of institutional controls and the assurance of continued operation and maintenance. «J>«PS ------- Page Intentionally Blank 286 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Perdido Groundwater Contamination, Region 4 Perdido, Baldwin County, Status: Construction of the remedial action was completed on June 28,1993; however, ground- water treatment is expected to continue for at least 30 years. Ground-water use is restricted until the cleanup levels established in the Record of Decision (ROD) dated September 30, 1988, are achieved. A 5-year review is scheduled for prior to May 1997. The site is currently undeveloped land between a highway and a railroad track. Results and Benefits: The selected remedy eliminates the principal threat to human health by providing an alternate source of drinking water for the affected residences. When the ground-water treatment phase has been completed, the ground water will meet the drinking water criteria for benzene. This site only affects ground water. Background: The Perdido Groundwater Contamination site is the result of a train derailment that occurred in 1965, resulting in the release of 7,575 gallons of benzene into ditches adjacent to the intersection of County Highway 61 and Railroad Street in Perdido. Perdido has a population of approximately 450. Approximately 250 residents and a junior high school with approximately 300 students are situated within a 1-mile radius of the site. The surrounding area is agricultural; livestock grazing and timber logging are the primary activities. Taste and odor problems in the Perdido domestic water supply were first documented in 1981. In 1982, 30 residents were tested for benzene exposure and no evidence of benzene exposure was found. Actions: The first action taken involved connecting 150 residences to the nearby Atmore municipal drinking water supply. The selected remedy was ground-water extraction, onsite treatment, and reinjection of treated water upgradient of the extraction system. The implemented treatment includes iron removal, air-stripping, and vapor phase carbon adsorption. The treatment system was started in December 1992, but the reinjection wells could not accept all of the treated effluent. An explanation of significant differences that allowed a permanent surface water discharge not to exceed 100 gallons per minute (gpm) was issued in May 1993. The treatment system was reactivated on June 28, 1993, and is achieving the performance standards. ------- Page Intentionally Blank 288 ------- _ -, SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Pioneer Sand Company, Region 4 Pensacola, Florida Status: Cleanup remedial activities are complete; all immediate threats from site contamination have been eliminated. The Potentially Responsible Parties {PRPs) are conducting long-term operation and maintenance activities at the site. EPA will review the site in 1995 to ensure that the remedial actions have been successful. A portion of the site operates as an active sand quarry. Results and Benefits: As a result of the cleanup activities, all threats from the former waste disposal activities have been eliminated. Surface and surface water remediation goals have been attained. A Consent Decree transferred the cost from EPA to the PRPs. The site has been fenced and is subject to a conservation easement disallowing any future activities or development of the site. Background: The 11-aere Pioneer Sand Company site is an inactive quarry that was licensed in 1974 to receive shredded auto parts, construction debris, and various industrial sludges. Between 1974 and 1978, phenols and resin compounds were deposited onsite by a local chemical company. Domestic and industrial wastes, including paint sludges, were received from an adjacent military installation. Approximately 75 percent of the site are in an excavation pit; the remaining 25 percent are a fill area where the wastes were deposited. In 1981, the Florida Department of Environmental Regulation (FDER) detected elevated levels of chromium, lead, and nickel in the onsite soil. A monitoring well installed by Pioneer Sand and one of the surface impoundments were found to contain elevated levels of chromium and lead. As a result of these findings, FDER did not renew the disposal permit and ordered the dumping to cease. Actions: To halt the possible contamination of the ground water, EPA excavated over 20 tons of contaminated soil in 1986 and transported it to a federally approved facility. EPA and the PRPs entered into a Consent Decree in 1988, in which the PRPs agreed to clean up the site. Cleanup was completed in 1991. This involved formally closing the landfill; collecting, treating, and disposing of the leachate and surface waters onsite; and conducting long-term maintenance. During their investigation, prior to the design of a method for cleaning up the site, the PRPs discovered a light nonaqueous phase liquid (LNAPL) in the landfilled area. Treatment of the LNAPL was completed using an innovative technology. Air is injected into the LNAPL, increasing its viscosity and thereby limiting its offsite migration during treatment. EPA conducted a final inspection of the construction and has issued a close-out report. In addition, EPA issued a Notice of Deletion from the National Priorities List (NPL) in the Federal Register in February 1993. The site will be subject to a 5- year review in 1995. ------- Page Intentionally Blank 290 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Powersville Landfill, Region 4 Peach County, Georgia Status: All remedial actions at the site have been completed. A multi-layer synthetic cover was completed in 1992 and holds the wastes in containment at the site. The site is currently a closed landfill. Results and Benefits: EPA's efforts have resulted in successful cooperation with the Potentially Responsible Parties (PRPs) and the community to address the hazardous waste problem at the Powersville Landfill site. The Superfund program effectively halted further migration of contaminants into the environment and ensured the safety of future water supplies. Construction of municipal water lines to homes with affected wells has been completed. An alternate drinking water supply became available during the spring of 1993. EPA successfully negotiated with the PRPs to perform the design and construction of cleanup activities. Under EPA supervision, the PRPs began designing the protective cover in December 1988, and installation was completed in 1992. Background: The Powersville Landfill covers 15 acres in Peach County, Georgia. The surrounding area is mainly agricultural and used for orchards and raising livestock Approximately 150 people live within 1 mile of the site. Sand and gravel were quarried from the site from the early 1940s to 1969. In 1969, Peach County began using the quarry as a sanitary landfill. For 10 years, the landfill received primarily household wastes. An undetermined number of companies also disposed of pesticides and chemical byproducts at the site. The landfill's floor is composed mainly of sand and gravel, allowing water and contaminants to move freely through the soil. Vinyl chloride, zinc, copper, lead, and pesticides all migrated into the ground water and soil. Thus, 15 area drinking wells and the aquifer beneath the site were threatened. Actions: Early actions were taken during the mid- to late- 1970s by the Environmental Protection Division (EPD) from Georgia's Department of Natural Resources to halt the disposal practices at the landfill. In August 1983, EPD officials recommended that adjacent residents stop using their well water. EPD then contacted EPA's Superfund program for assistance. In September 1983, EPA began studying the ground-water problem, and determined that pesticides, metals, and vinyl chloride were present beneath the site. Private wells were sampled, but the concentrations were within the safety standards set by the Safe Drinking Water Act. Following the studies and sampling, in September 1987, EPA chose a cleanup approach, which included the following: ------- Powersville Tj^dfiij, Region 4 (Continued) A multi-layer synthetic cap to cover the site and prevent rain water from spreading contaminants; A channel to keep rain water off the cover; Onsite monitoring weEs to allow tracking of the nature and movement of contaminants; and The extension of municipal water lines to serve area residents with affected wells, even though contamination was within acceptable drinking water standards. 292 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET SCRDI Dixiana, Region 4 Cayce, South Carolina Status: Remedial cleanup activities for ground water and removal of drums have reduced the potential for exposure to hazardous materials at the SCRDI DMana site. Ground-water treatment and monitoring will continue. The site is currently an inactive disposal facility. Results and Benefits: As a result of the ongoing efforts of the State, in cooperation with EPA, the shallow aquifer contamination has been addressed. According to tax assessment records, the site's value has returned to its predeanup value. Background: The 2-acre South Carolina Recycling and Disposal, Inc. (SCRDI) Dixiana site is located near Cayce, South Carolina, off Highway 321 on Ballard Court. At its operational peak, the site contained over 1,100 drums of materials such as paints, solvents, acids, waste oils, phenols, and dyes. A dye that was stored onsite and was a suspected carcinogen spilled, contaminating the shallow ground water. The State advised two families living adjacent to the site not to use their well water. The ground water was found to contain volatile organic compounds (VOCs), polycyclic aromatic hydrocarbons (PAHs), pesticides, and heavy metals from former site activities. Approximately 1,200 people use water supply wells within 3 miles of the site. Actions: In August 1978, the State filed a suit against the owners of the SCRDI site for poor handling practices, leaky drums, and inadvertent discharges to the environment prior to drum removal. The resulting court order specified that the site could no longer receive wastes, and that containment procedures be implemented. On May 23, 1980, a State Circuit Judge found SCRDI in contempt, which resulted in the company being placed in receivership. Shortly thereafter, SCRDI removed all the drums and visibly contaminated soil. A remedial investigation and feasibility study were performed by the State from January 1984 through September 1986 under EPA's supervision. The remedies selected by EPA included extracting contaminated ground water, treating it, and discharging the treated water to the sewer system of a nearby city. Ground-water treatment began in 1992 and is expected to be completed within 3 years. ------- Page Intentionally Blank 294 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Triana/Tennessee River Site, Region 4 Triana, Alabama Status: As of October 1987, 3 miles of contaminated stream channels have been successfully isolated and rerouted. Affected areas were filled with clean soil and revegetated. All remedial construction actions were completed in 1987. Results and Benefits: Four years after the cleanup effort began, overall DDT concentrations in fish have decreased by as much as 86 percent, and the DDT levels present in the water column have decreased by 93 percent. Because the company involved readily accepted responsibility, the site has proven to be economically and environmentally beneficial for the area. The cleanup effort was nominated twice for the National Wildlife Corporate Conservation Council Award in 1990 and 1991. Background: This site covers 11 miles along two tributaries of the Tennessee River: the Huntsville Spring Branch and Indian Creek, where DDT contamination posed a threat to wildlife and human health. A large chemical company leased areas from Redstone Arsenal (RSA) in Huntsville for the manufacture of DDT between 1954 and 1970. During the manufacture, handling, and storage practices, this potentially responsible party (PRP) discharged wastewater containing DDT through RSA's drainage channels that feed into the Huntsville Spring Branch-Indian Creek tributary system. Approximately 409 tons of DDT residues accumulated downstream in the sediment. The plant was closed and demolished in 1971, but DDT had already contaminated the water, fish, and nearby Wheeler Wildlife Refuge. Actions: In 1977, EPA, in conjunction with the Tennessee Valley Authority (TVA) and the U.S. Army, began investigating the site. The DDT contamination that was discovered was enough to enact public advisories about not eating the fish and even avoiding contact with the water. In 1983, the site was proposed for the National Priorities List (NPL) and finalized 2 years later. In 1983, the potentially responsible party (PRP) and the EPA signed a Consent Decree that required the PRP to develop and carry out a remedial plan to isolate DDT from the nearby population and the environment. The remedial plan was submitted and reviewed by a panel consisting of representatives from EPA, TVA, the U.S. Fish and Wildlife Service, the Department of the Army, the Alabama Department of Environmental Management, the town of Triana, and the PRP. This panel is overseeing the PRP's cleanup action until it meets the performance standards. The PRP submitted its final engineering design for cleaning up the site in 1986 and began construction on the initial cleanup phase. Ecological preservation weighed heavily in the choice for a cleanup plan. The review panel initially considered dredging the channels and disposing of the DDT-contaminated sediments offsite. Upon further evaluation, however, they 29.1 ------- Triana/Tennessee River Site, Region 4 (Continued) decided this could possibly destroy aquatic and wetlands habitats and potentially expose downstream populations to contamination. The methods that were used to cleanup the site included rerouting the river channel, burying the most heavily contaminated channel area onsite, continuing programs for fish and water studies, and investigating the movement of contaminants through the water and the fish. Targeted cleanup standards are scheduled to be met in 1998. A portion of the site needing attention fell within the boundaries of the Army's Redstone Arsenal; more specifically, within the restricted area of a missile range and NASA's space flight center. Site access for cleanup was gained only at night, so all cleanup activities were conducted under floodlights. 296 ------- j~ J~ SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Tri-City Oil Conservation, Region 4 Temple Terrace, Florida Status: As a result of State and Federal removal actions, the site cleanup for the 1/4-acre Tri-City Oil Conservation property was completed in May 1985, and excavated areas have been backfilled to original grades. The property was deleted from the National Priorities List (NPL) on September 1,1988, and currently is used by an auto garage. Results and Benefits: The site is currently occupied by an automobile garage and service center. Potential risks of contamination to drinking water supplies have been averted. Background: During its 5-year operation as a waste oil collection and distribution center, the Tri-City Oil Conservation Corporation was the cause of many complaints to the Florida Department of Environmental Regulations (FDER). The protests from the surrounding public included foul odors emanating from the facility and sloppy practices of workers. Problems at the site included waste oil spills during product transfers, unrepaired leaks from storage tanks, and a massive accumulation of liquid waste. In 1982, the owner/operator failed to cleanup the site after a spill released 3,000 gallons of waste oil. Subsequent investigation of the site, carried out by the FDER, revealed hydrocarbon and, unexpectedly, heavy metal contamination in the surrounding soil. In 1984, contaminants such as benzene, toluene, xylene, and chlorinated hydrocarbons were discovered in soils as deep as 2 feet below the surface. The potential for the hydrocarbon and metals (e.g., lead, chromium, and zinc) to migrate to the ground water and surface waters was considered a substantial danger to public health and the environment. Both water sources serve as drinking water supplies. Approximately 35 people, living within 1 block of the site, receive drinking water from nine private wells. The site is about 3,000 feet from the Hillsborough River and within 3 miles of the public well field serving 16,000 other residents. Actions: Activities to reclaim the site began soon after the 1982 spill when EPA removed the bulk of the release oil. EPA returned to the site in 1984 to conduct additional removals of sludges and contaminated soil. The discovery of contamination in soil below the surface prompted the FDER to engage in an effort to reduce contaminant concentrations to background levels. The FDER excavated and removed 850 cubic yards of contaminated soil and a 16,000-gallon underground storage tank. Approximately 5,000 gallons of organic liquid and sludges and an aboveground storage tank were also removed. Follow-up ground-water sampling conducted by the FDER in late 1985 and early 1986 determined that no contaminants exceeded the drinking water standards. After a detailed site analysis, EPA concurred with the FDER findings ------- Tri-City Oil Conservation, Region 4 (Continued) that the site was no longer contaminated. Because of the success of the initial actions, the 1/4-acre property no longer met the criteria of a Superfund site. 298 ------- -_ -, SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Varsol Spill Site, Region 4 Dade County, Florida Status: Cleanup activities at the Varsol Spill site included the initiation of hydrocarbon recovery procedures in 1971. Although the actual recovered volume was less than 10 percent of the estimated spill, the remedial investigation (RI) did not identify the presence of varsol in or around the area. Because the site was not a public or environmental threat, EPA determined that no action was needed at the site. The site was deleted from the National Priorities List (NPL) in 1988. The site is currently being used by Miami International Airport. Results and Benefits: The site is no longer a public health concern because the contaminants from the spill can no longer be identified in the ground water. Therefore, the possibility of exposure to hazardous substances at the site is no longer a concern. EPA performed final investigations and deleted the site from the NPL in 1988. Background: This site is located in the northeast section of Miami International Airport, Industrial operations associated with the area have resulted in hydrocarbon contamination of the surface and ground waters in the vicinity. Since 1966, approximately 15 hydrocarbon spills and leaks totaling approximately 2-million gallons, including the loss of an estimated 1.5-million gallons of varsol have been reported. The contaminants were probably dissipated in the aquifer by several factors. For example, some of the solvent was recovered, biodegradation was believed to have taken place, and the hydrology of the area indicates that some of the solvent contributed to, and became part of, the "background" contamination in the aquifer. The Varsol Spill site is located near the Biscayne Aquifer, which is the sole source of drinking water for 3 million residents of southeast Florida. Approximately 10,000 people live within 3 miles of the site. Actions: During 1970, a jet fuel spill of approximately 66,000 gallons was discovered near the west central area of Eastern Airline properties. During the early 1970s, Eastern Airlines installed 54 shallow observation wells at its maintenance base near the Varsol Spill area. Sampling results showed that the hydrocarbon layer diminished with time. In the Concourse E area, Dade County installed 43 monitoring wells to determine the extent and magnitude of jet fuel spilled. In 1983, Dade County also installed three recovery wells in the Concourse E area and began recovery operations. Through May 1984, over 102,000 gallons of jet fuel were removed from this area. In 1971, hydrocarbon decontamination separator trenches were installed by Eastern Airlines to remove the 1.5-million gallons of varsol that had spilled underground. In August 1973, this operation was stopped due to slime build up in the trenches and extremely slow natural migration of hydrocarbons into the ------- Varsol Spm Site, Region 4 (Continued) trenches. Actual recovered volumes of hydrocarbons were less than 10 percent of the estimated spill. Other recovery procedures at the airport were conducted during dewatering operations at construction sites within the airport, but were unsuccessful in removing substantial quantities of hydrocarbons. In April 1981, construction activities at the site revealed a thick hydrocarbon layer floating on the water table in an excavated trench. The Varsol Spill site was added to the NPL in 1983, and the Record of Decision (ROD) was signed on March 29, 1985. This site and two others, the Miami Drum Services site, and the Northwest 58th Street Landfill, were collectively considered one management unit for the cleanup investigation and selection of cleanup activities. At the time of the RI in 1985, no trace of varsol in or around the airport was detected; thus, no further action was the recommended alternative for the site. Factors that probably contributed to the dissipation of the contaminants in the aquifer were discussed above. 300 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Walcotte Chemical Co., Region 4 Greenville. Mississippi Status: All cleanup remedial activities have been completed, and the site was deleted from the National Priorities List (NPL) in 1982. Results and Benefits: Following monitoring to ensure the effectiveness of the cleanup, EPA and the State of Mississippi determined that the site is now safe for nearby residents and the environment. Surface cleanup goals have been achieved. The site has been used for a variety of operations and businesses since deletion from the NPL, including a recycling operation. However, the site is currently vacant. Background: The 1-acre Walcotte Chemical site is a former warehouse that operated from 1953 to the early 1960s. Chemicals used in producing fertilizer were stored in drums on the site until the early 1960s. The drums deteriorated to the point where the partially exposed chemicals in them could have exploded or started a fire. Due to the explosive nature of the drummed chemical wastes, area residents temporarily were evacuated before initial cleanup activities occurred. The site is located in an urban, residential, and business district, and the nearest home is within 60 feet of the site. Approximately 35,000 people live within 3 miles of the site. Drummed waste contaminants included formic acid, various pesticides, and volatile organic compounds (VOCs). The site is located in a flood plain of the Mississippi River, which could have resulted in the potential for contaminants to move through the surface water into the drinking water and surface soils. Actions: In 1981, EPA sent Notice Letters to the potentially responsible parties (PRPs), giving them the option to participate in the cleanup actions. Illinois Central Railroad, which had acquired ownership, voluntarily removed the drums from the site. The drums were staged, repacked, and transported to an EPA-certified landfill in 1982. These actions eliminated the threats caused by site contamination. 301 ------- Page Intentionally Blank 3O2 ------- ^•M ^"Nl ^*»v*'*^ SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Wilson Concepts of Florida, Inc., Region 4 Pompano Beach, Florida Status: "No action" was the selected alternative to address the soil and ground water at this site. However, ground-water monitoring was necessary for 1 year to verify that no site-related release of contaminants was occurring. No hazardous substances remain above health- based levels. Currently, a metal working facility operates at the site. The Notice of Intent to Delete this site from the National Priorities List (NPL) is currently being completed. Results and Benefits: Because of several inspections conducted by the county authority, facility operators ceased poor waste handling practices, including the discharge of industrial wastes onto the ground. Based on the results of the remedial investigation and risk assessment conducted at the site, EPA determined that no remedial action was necessary to ensure protection of human health and the environment. Current site activities are similar to those conducted at the site prior to its listing on the NPL. Background: The Wilson Concepts of Florida, Inc. (Wilson) site is located within the city limits of Pompano Beach, which has a population of 72,400. Approximately 93,000 people depend on drinking water from at least 4 municipal well fields located within 3 miles of the site. Directly underlying the site is the Biscayne Aquifer, which supplies all potable water for Broward County and has been designated as a sole- source aquifer. This 2-acre site is located in an industrial area of Broward County in the municipality of Pompano Beach. This site is adjacent to Chemform, Inc., another NPL site. Precision- machine parts have been manufactured at this site since 1974. From 1974 to 1980, Wilson leased the property, and in 1980, they purchased the site and operated it until April 1986. The facility changed ownership several times since then, and is currently leased to and operated by Carter and Crawley Precision Metals, Inc. Onsite activities include machining, drilling, and milling of metal parts, along with vibrating, deburring, degreasing, steam cleaning, and spray coating of parts. From 1976 through 1989, several inspections were conducted by the Broward County Environmental Quality Control Board pCEQCB) that documented poor waste handling practices, including discharge of industrial wastes onto the ground. On several occasions, Wilson was cited for violations of county regulations pertaining to the discharge of industrial wastes onto the ground and the overflow of wastes from two 1,200-gaUon underground storage tanks (USTs) into a storm drain, which also eventually dripped onto the ground. An investigation in 1987 found that Wilson was to violation of operating a hazardous materials facility without a license. Actions: In August 1985, EPA conducted a preliminary assessment of the site and in 1986, requested 303 ------- Wilson Concepts of Florida, Inc., Region 4 (Continued) its contractor to perform a sampling inspection. In 1986, EPA discovered volatile organic compound (VOC) and heavy metal contamination in the soil, in ground-water samples from monitoring weUs, and in a water sample from the storm drain. Due to the potential hazards associated with the contamination identified by sampling, the site was added to the NPL on March 31, 1989. The results of the remedial investigation (RI) and the baseline risk assessment indicate that natural attenuation of contaminant levels at the site has reduced the risk from exposure to site-related contaminants to levels that are protective of human health and the environment. Contaminant concentrations detected during the RI were lower than those in the sampling investigation data, which were used to rank the site. Site contaminants appear to have undergone natural attenuation, in which natural processes such as evaporation, dispersion, and chemical reaction reduced the concentrations of chemicals in the soil and ground water. In the absence of any significant source of contamination in the soil at the site, "no action* was selected as the preferred alternative to address the soil. Due to a lack of significant ground-water contamination, the "no action" alternative was also chosen for the ground water. However, the September 22, 1992, Record of Decision (ROD) indicated that ground water would be monitored quarterly for 1 year to verify that no site-related release of contaminants was occurring. The ROD also indicated that if the results of the monitoring showed that there was no unacceptable risk from exposure to site-related contaminants in the ground water, the site would be deleted from the NPL. However, if the results of the monitoring showed that the site posed a threat to human health or the environment, the protectiveness of the "no action* alternative and the feasibility of ground-water remediation would be re-evaluated. 3O4 ------- «M«g«MggMSS{ f+ f** HP*^i SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Woodbury Chemical Company, Region 4 Princeton, Florida Status: The removal action conducted at the Woodbuiy Chemical Company site in 1990 effectively eliminated the health risks posed by the onsite contamination. Although the site was placed on the National Priorities List (NPL) in 1990, no further actions were required after contaminated soils were excavated in the removal action. EPA continues to monitor the site to ensure future safety. A portion of the site is currently used for steel storage while 1.4 acres remain vacant. Surrounding land use includes farming and commercial operations. Results and Benefits: The removal action eliminated the potential health risks from direct contact with contaminated soils and airborne dust, and also prevented contamination of the Biscayne Aquifer, a valuable drinking water source underlying the site. In addition, the removal eliminated potential risks to manatees, a designated endangered species that frequented a canal located approximately 2,350 feet northeast of the site. Background: In 1975, the Woodbury Chemical Company began formulating pesticides and fertilizers on a 3-acre site in Princeton, Florida. Products were typically produced by blending technical- grade materials in 50-gallon vats. Facilities on the site include an office building, warehouses, production buildings, and aboveground storage tanks. Most of the storage tanks are outfitted with dikes. The 17,600 people estimated to live within 3 miles of the site obtain drinking water from the Biscayne Aquifer. The aquifer was designated by EPA as the sole source of drinking water for Dade County. Three wellfields and several private wells are also located within 3 miles of the site. In 1985, an EPA site investigation and subsequent soil analyses found contamination at the facility due to agricultural chemicals, including aldrin, dieldrin, toxaphene, and chlordane. Surface soils contaminated with agricultural chemicals posed a potential threat to workers at the site and to the immediate community. Due to the proximity of the site to the Biscayne Aquifer, offsite ground-water contamination was also considered to be a potential threat. Analysis of water samples taken from on-site wells provided evidence of ground-water contamination. Although contaminant concentrations were below levels of concern, the potential for increased contaminant concentrations and off-site migration existed as long as the source of the contamination remained in place. Actions: fa 1990, contaminated soil was removed from the site by the responsible parties. The soil was taken to an offsite facility for disposal. In 1992, 305 ------- Woodbury Chemical Company, Region 4 (Continued) SPA completed its follow-up investigation of the site to determine the nature and extent of any remaining contamination. Based on the results of this investigation, EPA determined that the immediate actions had removed all contamination and no further cleanup actions were required. The ground-water monitoring program implemented by EPA is continuing, however, to ensure that the site remains safe. 306 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Cedartown Battery Site, Region 4 Cedartown, Georgia Status: This removal action is now concluded. The site is not in use at this time. Results and Benefits: The major concern addressed by this cleanup action was direct exposure to soil highly contaminated by lead and battery acid. Leaching of lead toto ground water was also addressed by the soil treatment. Background: The Cedartown Battery site is in Polk County, about 2 miles west of Cedartown, Georgia, in a primarily rural area. The 6-acre site, located on State Road 100, was operated as a battery recycling (cracking) and scrap metal business until 1977. The batteries were crushed, the lead removed for reclaiming, and the battery casings disposed of on the property. No attempt was made to contain the battery acid. Lead- contaminated materials were spilled and seeped into the ground. Estimates of between 22,000 and 25,000 cubic yards of contaminated soil have been given. Investigators stated that homes in the area are supplied by the Polk County City Water System's well in the northern portion of the County, about 2.5 miles northeast. Preliminary samples collected by EPA and the technical assistance team in the fall of 1988 indicated that lead contamination levels ranged from 3,450 ppm to 19,300 ppm. The Regional representative from the Agency for Toxic Substances and Disease Registry (ATSDR) indicated that the levels were above allowable standards and showed that the lead may be leaching into the ground water (Extraction Procedure Toxicity levels ranged from 56.5 to 183 ppm). ATSDR also stated that, in its opinion, this site is a significant health concern for persons, particularly children, who may enter the site and become exposed to the contaminated soil. ATSDR recommended that the soil be removed or access-restricted to preclude any human contact with this soil. Actions: In September 1988, a concerned citizen living in the area informed EPA that the site was not secured and that children had been seen playing in the area. EPA initiated a sampling investigation and a search for potentially responsible parties in September. Phase I of the removal action focused on the excavation and stockpiling of contaminated soil and was designed to determine the extent of the contamination through soils testing. This phase began in June 1989 and was completed in September 1989. Phase I also involved a treatability study, which assessed various methods for processing the hazardous materials and treating the soils on the site. ATSDR concurred that a cleanup goal of 500 to 1,000 ppm total lead at the surface would be protective of public health. ATSDR also concurred that the solidification of contaminated soils would be acceptable in protecting public health. The site was sampled to identify the perimeter of the contaminated area. 3O7 ------- Cedartown Battery Site, Region 4 (Continued) Phase II consisted of the solidification of the contaminants. Solidification is a process in which cement is introduced to "lock up" contaminants and contain them on the site as a permanent, concrete-like substance. Phase II began in November 1990 and continued until November 1991. Restoration of the site concluded the removal operation. All though the site's owner was contacted, funding for the removal action could not be achieved due to a lack of liquid assets. Consequently, all removal actions were EPA- funded. 308 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Disposal Services, Inc., Region 4 Harrison County, Mississippi Status: All immediate removal activities have been completed at this site. The site is presently fenced and inactive; the company is in bankruptcy. Because the State has assumed responsibility for the continued cleanup of the site, no further Superfund actions are planned. Results and Benefits: The migration of oil contaminated by hazardous materials no longer poses a threat to the Biloxi Bay and the Gulf of Mexico. The site no longer impacts several endangered species. The site is •within 1 mile of the Mississippi Sandhill Crane Refuge, a habitat for the Sandhill crane, an endangered species that nests throughout the surrounding area. Least terns, another endangered species, nest on the site itself. The risk of high concentrations of chlorinated compounds causing damage over time to these species has been eliminated. Background: The Disposal Systems, Inc., (DSI) Clay Point Facility located in Biloxi, Mississippi, began operation in 1982. The site, located approximately 1 mile from the Gulf of Mexico on Biloxi Bay, is in an industrial area with several residences on one side, an inlet on Biloxi Bay on the opposite side, and industries on the other two sides. The 12-acre site was operated as a storage and treatment facility for an off-shore drilling operation. The generated drilling mud was transported to the site in barges and placed in three large onsite impoundments/lagoons for gravity separation of oil and drilling mud. Once separation had taken place, the drilling mud was allowed to desiccate and was then transported to the company's landfill in a nearby town for disposal. In addition to drilling mud, dredge spoils were also disposed of onsite. When DSI went out of business, the drilling mud and other wastes were left on the facility in drums and open impoundments. During times of severe thunderstorms, the impoundments overflowed. This was further evidenced by stained soil and concrete between the impoundments and the Bay. The remaining drums were also left unsecured and open to the elements; most showed signs of significant deterioration. Actions: In 1988, EPA began investigating the site. Sampling at the site revealed the presence of chlorinated organic compounds threatening a release to the adjoining Biloxi Bay. Implementation of the removal action included the following: • Bulking of waste stored in drums at the facility; • Solidification of approximately 5,000 cubic yards of oily sludge material found in two onsite lagoons; • Dewatering of approximately 1,100 cubic yards of oil and sludge contained in another onsite lagoon; and • Transportation and disposal of waste oil to an approved facility. sna ------- Disposal Services, Inc., Region 4 (Continued) A wastewater treatment system originally used The State is in the process of requesting that on the site was used to treat the waste oil found potentially responsible parties finance the final in the lagoons. As the water was separated from removal of wastes remaining on the site. oil and sludges within the system, a State permit allowed discharge of the treated water to the local Publicly Owned Treatment Works. The removal action was completed in March 1989. 310 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Divex Corporation Sites, Region 4 Columbia, South Carolina Status: Actions are underway to mitigate extremely hazardous conditions under the removal authority of EPA. The site has been referred to the Site Assessment program for evaluation for listing on the NPL. Results and Benefits: Nearby residents and businesses were at significant risk of explosion or exposure to toxic gases. The owner was killed and a former worker severely injured in separate explosions at the same site. EPA helped to provide emergency control of the situation to prevent further loss of life. An estimated 11,000 pounds of high explosives were present at this site, which would result in a blast radius of 1 /4 mile. Such an explosion would kill or injure all response personnel onsite and destroy four nearby residences. Shock waves would cause damage to several thousand residences within a 1- to 2- mile radius. Background: The Divex Corporation explosives sites comprise manufacturing facilities and an associated laboratory located in Columbia, Richland County, South Carolina. The manufacturing facility (Montgomery Road site) is located just outside the city limits of Columbia. The laboratory and corporate offices are on Lawand Drive inside the city limits. In October 1993, the Richland County Emergency Management Agency (EMA) requested that EPA Region 4 Emergency Response and Removal Branch to assist with the emergency. This assistance included providing an On-Scene Coordinator (OSC) to coordinate operations, contractor support to mitigate the extremely hazardous explosive conditions at the sites, and site security to prevent unauthorized entry or vandalism. The sites had been unsupervised with no provisions for proper maintenance after the death of the owner on September 6, 1993. A second explosion at the Montgomery Road facility had seriously injured a former employee during the week of September 13. The Lawand Drive laboratory has several rooms containing hazardous substances, shock- sensitive and explosive compounds, and other chemical wastes. Compounds of primary concern included nitroglycerin, lead azide, lead styphanate, picric acid, and hydrazine. Over 50 pounds of these chemical explosives and several hundred containers of other laboratory wastes were left unsecured in the building. Evidence of crystallized explosive wastes was all over the laboratory. The laboratory also contained several fuses, an explosive shape- charge, and live small arms ammunition. Other chemicals included incompatible materials such as strong acids and bases, oxidizers and flammable liquids, toxic gases, poisons, and radioactive substances. The Montgomery Road facility contained over 40,000 pounds of high explosives, missile parts with warheads, landmines and antipersonnel devices, grenade detonator caps, etc. Some were armed and/or strewn in trailers or in the magazines. In addition, the facility contained 311 ------- Diver Corporation Sites, Region 4 (Continued) hundreds of drums, compressed gas cylinders, and other chemical containers. A partial list of chemicals included cyanogen bromide, diborane, sulfuric acid, fuming nitric acid, sodium metal, lithium metal, potassium metal, lithium hydride, hydrofluoric acid, potassium cyanide, and picric acid. Agents of the Bureau of Alcohol Tobacco and Firearms (ATF) conducted inventories of the magazines and trailers for high explosives and military ordnance. The U.S. Coast Guard provided a chemical inventory. Many "unknown" materials that require special handling were present at the Montgomery Road facility. Actions: The OSC directed security provisions to be made at both the Lawand Drive and Montgomery Road properties. He also directed that the extent and severity of hazards present at both sites be evaluated. A Regional Response Team meeting, convened on October 22, 1993, resulted in deployment of ATF personnel and an Army unit from Fort Jackson to help with removal operations. Initial actions included removal of the more hazardous materials, including nitroglycerin and explosive devices from the Lawand Drive site. The removal team subsequently detonated these materials at the Richland County Landfill. EPA relocated one nearby resident to a hotel until alternative housing arrangements could be made. Temporary evacuations were made as conditions and operations warranted. Four additional EPA OSCs were mobilized to assist in removal activities. Other agencies involved in inventory, security, and removal operations included the U.S. Coast Guard National Strike Team, the ATF, the U.S. Army, the Army Core of Engineers, the Richland County EMA, and the Sheriffs and Fire Departments. Public meetings and press briefings were held regularly to keep the community informed of removal activities. According to an Action Memorandum from the OSC, "the hazards at this facility could not be overstated." The response team conducted 15 separate detonations of materials from the Lawand Drive site. By November 22, 1993, all stabilization measures at the Lawand Drive laboratory were completed. The remedial team transported nonexplosive chemicals to the Montgomery Road facility. Buildings were then secured and locked, and warning signs were posted. On November 27, the U.S. Coast Guard National Strike Team completed the chemical inventory at the Montgomery Road facility. Approximately 11,000 pounds of ordnance and highly explosive materials were found suitable for recycling and/ or destruction. On December 2,1993, a private company removed approximately 29,000 pounds of high explosives for reuse. 312 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Interstate Lead Company (ILCO) Site, Region 4 Leeds, Alabama Status: The Interstate Lead Company (ILCO) site is currently listed on the National Priorities List. The removal actions have been closely coordinated with ongoing Remedial Program actions. Results and Benefits: Two main hazards were posed by hazardous substances at the site. The first was lead- bearing wastes stored on the site that had contaminated the soil. The second hazard was sulfuric acid remaining in impoundments, holding tanks, and depressions around the cracking areas. Removal actions have secured the site from direct contact with contaminants and have reduced the amount of lead entering the environment via runoff and wind-borne dispersion. These removal actions are expected to contribute significantly to remedial performance. By almost complete removal of the source of contamination, anticipated remediation of both ground water and surface water will be simplified. Background: The Interstate Lead Company site is located on the southwestern side of Leeds, Jefferson County, Alabama. The area is mostly industrial, but a few houses are within a 1/2-mile radius of the site. ILCO began operating as a secondary lead smelter in 1968, and operated continuously except for periodic shutdowns due to economic conditions. Daily operations carried out in the "cracking building" normally involved cutting automotive batteries open and draining the acid. Many large piles of debris from the de-casing of spent lead-acid batteries, two large piles of blast furnace slag, three large piles of crushed rubber battery chips, a pile containing baghouse dust and lead drosses, and several piles of scrap metal are stored onsite, both covered and uncovered. ILCO's furnace and cracking buildings were serviced by a baghouse system that still contains several tons of baghouse dust. In the cracking building are impoundments of sulfuric acid, large areas of lead-contaminated soil, and two entombments containing 60,000 cubic yards of blast slag. Both the lead-bearing waste and the sulfuric acid are hazardous substances as defined by Section 101(14) of CERCLA, and form the contaminants of concern at the ILCO site. Lead concentrations in soils and sediments around the main facility were two orders of magnitude above action levels for lead (i.e., 500 to 1000 mg/kg). Because the site was unsecured, exposure through direct contact was a real possibility. Other potential exposure pathways included lead-contaminated run-off and wind- borne particulates. In addition, potential existed for migration of lead to the city's well field, located down-gradient of the facility. It was reported that contamination beneath the plant site had reached the aquifer that provides water to the City of Leeds. Lead contamination has already affected Dry Creek and one of its small, unnamed tributaries. These releases could adversely affect aquatic species living near the site. ------- Interstate Lead Company (ILCO) Site, Region 4 (Continued) ILCO has a long histoiy of Superfund and RCRA activities. In 1984, a removal action was conducted at one of its remote disposal locations. All ILCO sites, including the main facility have been the subject of a completed remedial investigation/feasibility study (RI/FS) under the Remedial Program of Superfund. Actions: On March 10, 1992, ILCO officials notified EPA that they planned to cease operations at the facility. Consequently, they would not continue to operate the existing wastewater treatment (WWT) system at the site. The WWT was used to treat both process effluents and contaminated runoff. EPA immediately mobilized its emergency contractor to begin operating the WWT system in an effort to prevent contaminated water from migrating offsite. After initiating the operation of the WWT system, EPA began to investigate and characterize the various threats posed by the waste materials • abandoned onsite. The most immediate threats identified by EPA were approximately 275,000 gallons of highly contaminated WWT sludge in settling tanks near a stream. The liquid in these tanks was within inches of overflowing. In addition, 5,000 tons of exposed lead slag were scattered in various piles around the site. In April 1992, EPA transported the slag to a hazardous waste landfill and began removing the wastewater sludge from the settling tank. The next phase of the removal consisted of demolition and decontamination of the most highly contaminated structures on site. EPA began demolition of the lead-contaminated battery cracking and furnace buildings and concluded with the dismantling of these buildings and their associated contaminated equipment. Extensive surface and subsurface soil sampling identified lead-contaminated areas that exceeded recommended safe levels. EPA began excavating, collecting, and stockpiling the most highly contaminated soils and debris in February 1993. The stockpiled soils and debris were covered with a durable weather-resistant liner to prevent contamination and migration or runoff of contaminants. Future activities will include treatment of wastes and slag entombments, which are expected to be massive efforts due to the volume of material involved. 314 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Maxey Flats Low-Level Nuclear Waste Disposal Site, Region 4 Hillsboro, Fleming County, Kentucky Status: Maxey Flats, which served for 15 years as a disposal facility for low-level radioactive materials, is currently faced with extensive contamination. While completion of all contemplated remedial actions may require up to 100 years, the removal action addressed only a tank farm used to store radioactive trench leachate. Results and Benefits: This removal action addressed the threat of a catastrophic release of radioactive leachate due to failure of any of the holding tanks. Such a release could have resulted in exposures to site personnel and migration into the environment, including the air and ground water. The cleanup should also result in the reduction of background levels of tritium at the site. Although the immediate threat of a catastrophic tank failure has been removed, the resulting radioactive solids will have to be managed at the site along with the other radioactive wastes as part of long-term remedial actions. Background: The Maxey Flats Low-Level Nuclear Waste Disposal site, owned and operated by the Commonwealth of Kentucky, served as the primary nuclear waste disposal site for the eastern United States from 1963 to 1978, when it was closed to receiving further materials. It is situated on a flat plateau covered with clay where the site's 51 waste disposal trenches are located. Approximately 4.8 million cubic feet of low level radioactive waste was placed into shallow subsurface trenches during the period of operation. The materials included radioactive debris, trash, contaminated laboratory equipment, and liquid radioactive waste. In 1974, a study conducted by the Commonwealth of Kentucky indicated that radioactive isotopes, primarily tritium, were migrating beyond the trench disposal area. To meet the problem of the radioactive leachate, an evaporator and a temporary tank farm were constructed to process and contain pump-down liquid from the trenches. The tank farm was constructed from 11 old, reused 20,000-gallon tanks obtained from various sources. Approximately 12 years later, in 1986, the evaporator unit was taken out of operation. In spite of efforts to reduce the volume of pumped leachate, the tank farm's capacity was soon expended. The tank farm was also closed in 1986 and left at capacity. In 1988 and again in 1989, the State requested emergency assistance to control leakage onto the tank farm floor. Corrosion and leaks had developed and an engineering assessment indicated that the structural integrity of the tanks was in question Actions: The first EPA Region 4 Emergency Response Branch action was to provide emergency heating to prevent the tanks and their fittings from rupturing during the winter and to provide for additional berm capacity in the event of an uncontrollable tank leak. ------- Maxey Flats Low-Level Nuclear Waste Disposal Site, Region 4 (Continued) The second phase of removal action was the solidification of the 240,000 gallons of radioactive leachate stored in the tanks and the 45,000 gallons of radioactive water that had accumulated on the floor of the tank farm building. This resulted in 216 11.5-ton blocks or "billets.* These were temporarily stored in two onsite areas between layers of Permalon polyethylene to prevent leaching. Condensation of radioactive tritiated water was noted on the polyethylene. The two temporary storage areas were lined and bermed to prevent runoff of contaminated rain water. The tanks originally installed in 1974 are now empty and inactive. In subsequent removal activities, completed in September 1993, new trenches conforming to current radiation safety standards were designed and built for the 216 billets. The billets have been placed in the new trenches and have been covered with plastic. Final capping has not yet been done, pending stabilization and dewatering of the new trenches. The two areas where the billets were temporarily stored have been allowed to go fallow, and natural vegetation is encroaching. EPA has installed a new 25,000- gallon tank for wash and laboratory water collection. 316 ------- SUPERFUND SITE REMOVAL ACTION SITE PACT SHEET Palmetto Wood Preserving, Region 4 DMana (Cayce), South Carolina Status: The removal action to eliminate the source of contamination and to stop the migration of contaminants from soils to the ground water has been completed. Results and Benefits: A safe water supply was provided to nearby residents during and after cleanup activities. Contaminated soil has been treated to stop further ground-water contamination. Region 4 personnel worked extensively with the City of Cayce, South Carolina, and its engineer in designing a water line to provide a safe drinking water supply. By implementing portions of the Record of Decision (ROD) under the removal authority, the time required for completing the site remediation and subsequent deletion from the National Priorities List (NPL) was shortened significantly. Prior to conducting the removal, all known responsible parties were given an opportunity to perform the cleanup, but they declined due to a lack of financial resources. Responsible parties identified after the removal was completed will be asked to reimburse the government for its removal costs. For cost recovery to the Superfund Program, cooperative efforts between EPA and local officials resulted in convincing the City of Cayce to assume all design costs and to share in a portion of the costs for the water line. Region 4 personnel also provided assistance in drafting a State Superfund contract to assure that the Program recovered at least 10 percent of the $1.9 million final cleanup cost. Background: The 5-acre Palmetto Wood Preserving (PWP) site is bordered to the west by an unpaved road and to the east by railroad tracks. The facility operated from 1963 to 1985 and used a variety of processes to treat wood products. During this period of operation, the site consisted of the plant structure and equipment (the pressure vessel, narrow gauge rail line, solution storage tanks, drip shed, and storage and office building). When the company ceased operations in 1985, all equipment was moved offsite to an unknown location. Unabated spills and drippage of process solutions such as fluoride-chromium-arsenic- phenol, acid-copper-chromium, and chromate- copper-arsenate caused significant soil contamination. Evidence of past releases was noted primarily in four areas around the facility. Because of the geology of the site and the region's plentiful rainfall, a rapid and virtually unrestricted migration of contaminants from the soils to the ground water was considered a threat. Actions: In December 1981, the South Carolina Department of Health and Environmental Control (SCDHEC) received complaints of green liquids running off the PWP site during heavy rainfall. The greenish stains, characteristic of chromate-copper-arsenate wood treatment operations, were a visible indicator of surface soil contamination. As a result of these complaints, in February 1982, the SCDHEC ------- Palmetto Wood Preserving, Region 4 (Continued) collected surface soil samples onsite and water samples from private wells. None of the water samples showed evidence of contamination; however, two of the three soil samples had chromium levels that exceeded the RCRA hazardous waste limits. After receiving more complaints in November 1982, investigations by the SCDHEC revealed liquid from freshly treated lumber flowing onto and puddling on an adjacent property. A Notice of "Violation was issued'to the company on March 29, 1983, and several conferences were held between the SCDHEC and plant personnel to discuss major plant improvements. No action was taken because an agreement was never reached on how to clean up the contaminated soils upon which a drip pad was to be installed. In April 1983, during the initial pumping of a new well at a nearby residence, the water turned bright yellow and did not clear up after many hours of pumping. Analysis of the •water revealed high levels of copper and chromium. PWP began to supply the residence with drinking water by running a hose from the plant's own private well to the residence. In May 1983, the SCDHEC resampled the affected residential well in addition to several other local private wells. The analytical results indicated that chromium levels in the well initially compromised by site contamination had increased. The remaining wells showed no contamination. In September 1983, the site was placed on the NPL. By the end of the year, the SCDHEC turned over responsibility for further work on the PWP site to EPA. The ground water immediately beneath the site was found to be severely contaminated. There was evidence of some leakage from the shallow aquifer into a deeper aquifer. Both arsenic and chromium concentrations in shallow ground water onsite were high enough to render the water unusable. In addition to the ground-water threat, surface soil contamination was predicted to travel offsite via surface runoff and wind erosion. On July 25,1985, an Action Memorandum was signed, initiating a removal action to provide, on an interim basis, an alternate drinking water source for one of the affected residences. Prior to implementing any remedial action, the removal plan allowed for installing a municipal water line with the potential for other local residents to hook up, or drilling a new well for the affected residence. Actions implementing the ROD were initiated in September 1988, when a contractor began excavating contaminated soils for treatment and solidification. A total of 12,686 cubic yards of contaminated soil were solidified and redeposited in the excavated areas. In July 1989, the burial areas were covered with clean soil, graded, and sown with grass. The installation of a new water line began in May 1989 and was completed in July 1989. The On- Scene Coordinator assisted in developing an Interageney Agreement with the U.S. Bureau of Reclamation to perform an aquifer pump test in order to obtain data necessary for designing a ground-water recovery system. Ground-water remedial activities involve extraction of contaminated ground water followed by on-site 318 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Prairie/Starkville Ether Sites, Region 4 Monroe and Oktibbeha Counties, Mississippi Status: All emergency removal activities are complete at these sites. The ether stored at these sites was detonated successfully, and all debris were removed. Results and Benefits: The threat of fire and explosion has been removed by the emergency removal actions at these sites. Similar emergency removal actions have addressed this type of threat across the Nation where other dated medical supply locations have been discovered. Background: During the late 1950s and early 1960s, under the Civil Defense Program, packaged disaster medical supplies were located across the country mostly in centralized, public areas. After many years, significant threat of fire and explosion existed from ether containers (distributed for surgical anaesthesia) due to their age and formation of reactive peroxides. Because these sites are no longer in operation, and normally no measures are taken to secure them, the potential for fire and explosion (in these public areas) existed. The Prairie site, located approximately 5 miles southeast of Aberdeen, Mississippi, is in a rural area of Prairie that has a population of approximately 500 persons. In 1945, the U.S. Army Gulf Ordnance Plant dosed its operation, and the U.S. Public Health Service set up a medical supply warehouse there. The warehouse was closed in the early 1970s. General Services Division (GSA) then leased the property to Mississippi State University for agricultural research. Approximately 31 cases of clinical grade ether made in 1962 were located in warehouses at the Prairie site. Each case contained approximately 96 1/4-pound cans, totalling 2,976 cans. The Starkville site is located at the City Hall in Starkville, Mississippi, a town of approximately 15,000 persons. The basement of City Hall was the site of an emergency hospital set up under the Civil Defense Program where 72 1/4-pound cans of clinical grade ether were stored. Actions: During the morning of May 15, 1990, the ether was taken from the storage locations to the detonation sites utilizing a bomb trailer. The moves were made under escort by State and local officials. By 6:00 p.m., all of the cases of ether had been detonated in six explosions, using a total of approximately 100 pounds of explosive. ftlQ ------- Page Intentionally Blank 320 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Prentiss Creosote Site, Region 4 Prentiss, Mississippi Status: Removal actions have been completed at this site. A screening Site Inspection conducted by EPA in 1990 indicated that the residual hazard is low, and recommended no further remedial action. Currently, the site is deserted with no indication of development or activity. The site was purchased several years ago from the Jefferson Davis County Tax Assessors' Office; however, the site is again listed as delinquent and is scheduled to be auctioned in 1994 by the Tax Assessors' Office. A notation will be made on the recorded property deed that the site was used to manage hazardous waste and that its future use is restricted. Results and Benefits: These removal actions prevented further contamination of groundwater, surface waters, food fish, and soil with creosote, a known carcinogen and irritant. Ecological benefits were also realized, because fish and other biota are adversely affected by creosote contamination. Background: Prentiss Creosote and Forest Products, Inc., was a pressure treating plant located 2 miles outside Prentiss, Mississippi. There has been a treating plant at the site for over 25 years. The production process involved debarking of the timbers and placing them in retort cylinders for drying and pressure treatment using creosote as the preservative. Creosote is a mixture of many compounds, some of which are powerful carcinogens and irritants. The treatment process resulted in the generation of approximately 50,000 gallons of wastewater per day. The wastewater was discharged directly into the nearby creek until the early 1970s when the onsite lagoons were built. The three lagoons cover approximately 0.8 acres, with total holding capacity of approximately 1-million gallons. The Prentiss Creosote site is located in a mixed industrial/ residential area. About 200 people live within 1 mile, and the nearest residence is approximately 300 feet from the site. All nearby residences are on private water wells. The waste water lagoons are approximately 50 feet from an unnamed creek that is used for drinking water as well as for recreational activities such as swimming and fishing. While the company was operating, the lagoon levels were controlled by plant operators. After the company went out of business in 1987, however, no one maintained the lagoons or monitored the water levels. Residents reported the spread of contamination as a result of heavy rains. When site investigators arrived at the scene, there was only about 1/2 foot of freeboard in the lagoons, which posed an imminent threat of overflow. The ground water was also a significant concern. The Action Memorandum noted that one onsite monitoring well discharged almost pure creosote; however, the ground water offsite was determined to be unaffected. Actions: Two removal actions were conducted at this site. The first, in March 1987, mitigated the immediate threat to the nearby stream. To stabilize the situation, creosote-contaminated water was pumped from the lagoons and treated. 321 ------- Prentiss Creosote Site, Region 4 (Continued) The remaining semi-solid sludge was then removed and solidified by mixing it with kiln dust. This remedy was a temporary measure that allowed the On-Scene Coordinator time to identify and implement a more permanent disposal option. The solidified material was still hazardous, however, and there were continued concerns about exposure due to direct contact and leaching. The second removal action, started in August 1989, implemented the chosen disposal method: onsite incineration. This option was judged more acceptable than either offsite incineration or disposal in an approved landfill. A site- specific bid procedure was used to minimize cost for incineration.. Responsible parties were identified, but were unable to assist in financing the removal action. The actions were completed in October 1989, and no further remediation is planned. 322 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Shaver's Farm Drum Disposal, Region 4 Lafayette, Georgia Status; The removal action for the Shaver's Farm Drum Disposal site is complete. The source of contamination was removed through the excavation and containment of contaminated soils, drums, and hazardous material in two onsite holding cells equipped with leachate collection systems. Site monitoring and the ultimate disposition (i.e., incineration, transportation and disposal, bioremediation, or other applicable destruction technologies) of contained materials was to be performed by the responsible party (RP). Although monitoring activities such as corrosion control for containment cells and leachate maintenance operations have been conducted by the RP, the requirements for final disposition of materials remaining onsite is currently being decided in Federal District Court. Results and Benefits: Historical information concerning site operations and the analyses of environmental media samples confirmed releases of Dicamba (under the trade name, Banvel) and benzonitrile, two potent pesticides banned from use in the United States. Analysis of ground water confirmed that Dicamba, a relatively nonpersistent compound which dissipates from soil through leaching, had migrated to the ground water beneath the site. A cooperative effort between EPA and the RP alleviated a substantial public threat of direct exposure to hazardous constituents and/or contaminants leaching into the ground water. Background: In August 1973, Mr. Harold Shaver entered into an agreement with Sydney and Moses Mathis, whereby chemical waste would be disposed of in landfills on Mr. Shaver's Lafayette, Georgia, farm. The Mathis brothers had contracted with three private companies to dispose of 80 55- gallon drums of Banvel wastes per week and 30 55-gaUon drums of benzonitrile waste residue every 4-6 weeks. The Banvel wastes consisted of 5 to 8 percent Banvel isomers. The benzonitrile wastes consisted of cleanout residue from a benzene distillation unit and were of a hard, tar-like consistency. During the same period that the Mathises were disposing of waste at the farm, another operator was disposing of latex-based wastes at the site. The latex wastes contained a water emulsion of synthetic rubbers or plastics similar to those used in the production of paints and adhesives. The State of Georgia's Department of Natural Resources determined that the contents of the drums being buried by the Mathis Brothers presented a significant hazard to the environment and ordered all activities to cease. Before discontinuing their operation in mid- January 1974, the Mathis Brothers had disposed of an estimated 2,000 drums of waste. The 120-acre Shaver's Farm site, although relatively flat, is characterized by a wooded area, grassy sloping fields, and subterranean karst structures. The numerous sinkholes and 323 ------- Shaver's Farm Drum Disposal, Region 4 (Continued) underground streams associated with karst formations often provide conduits for contaminant transport to local aquifers, and generally facilitate a rapid horizontal and vertical migration of contaminants to a more extensive area. An example of this phenomenon occurring on the Shaver Farm site is the disappearance of a stream located at the southeast corner of property into an onsite sinkhole. Actions: On March 30, 1988, EPA Region 4 and the RP entered into an Administrative Order by Consent to determine whether hazardous substances were migrating into the ground water or overland as a result of erosion; to determine whether drums were buried in the suspected area; and to define the extent of the drum area. The analysis of confirmatory samples collected by EPA Region 4 personnel, and the technical assistance team showed concentrations of up to200ppmofDicambainthesoils. Suspected trench areas were identified in a June 1989 geological survey conducted by EPA Region 4. To segregate latex materials disposed of by other private companies from wastes attributable to themselves, the RP began excavation of these wastes on November 6,1989. EPA took responsibility for all remaining site cleanup activities in February 1990, after the RP had committed several site safety violations and possibly caused an emergency situation where a cloud of hydrogen cyanide at potentially lethal levels was released from a drum. Although approximately 600 drums had been excavated by the RP, they had been left uncharacterized and staged in a flood plain. The Environmental Response Team provided onsite analytical laboratory support to perform drum content and soil analysis and immediately mobilized a water treatment system to treat and discharge approximate 1-million gallons of pesticide- contaminated water that had accumulated in the trenches. More than 50,000 cubic yards of contaminated soil were excavated and stabilized in two lined containment ceEs equipped with a leachate collection system. In addition, approximately 3,000 drums were removed, classified, and segregated. 324 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET So-Green Emergency Response, Region 4 Tifton, Georgia Status: Emergency actions in response to the So-Green warehouse fire were carried out by EPA Region 4 personnel with the cooperation of the local fire department, police department, and the Georgia Environmental Protection Division. Nonemergency activities continue under the Superfund Removal Program. Results and Benefits: This emergency action illustrates EPA's cooperation with local citizens and officials in responding effectively to an acute situation. Effective public relations efforts informed the community about hazards of the site. Immediate evacuation prevented harm to 75 nearby residents threatened by further fire or explosion and by the potential release of toxic gases. Caustic and acidic runoff from tanks on the property could have burned anyone coming into direct contact with the wastes. Runoff of acid and other materials could have affected surface waters and endangered aquatic life. Emergency stabilization of the site from June 16 through 18, 1993, paved the way for systematic cleanup activities under the Removal Program. Background: So-Green, Inc., is an abandoned fertilizer blending facility owned by Mr. Herman Parramore. So-Green is located across the street from the Parramore Fertilizer site, which has been characterized as Georgia's worst-known contamination site. About 75 residents are immediately adjacent to the site's south side. Many low income residents reside within 1/4 mile of the northwest side. A drainage ditch flows into a nearby creek. Actions: A fire was discovered in the So-Green warehouse and shed at 3:05 p.m. on June 15,1993. About 75 people were evacuated from three blocks of the south Tifton, Georgia, neighborhood by the Tifton Fire Department. By 8:00 p.m., residents were permitted to return home with no ill effects reported. The EPA On-Scene Coordinator (OSC) immediately initiated a fund-led Emergency Removal Action under his $50,000 authority. Response personnel began assessment and cleanup on June 16. Also on June 16, a news conference was held that included the OSC and other officials. The principal immediate concerns after the fire were two leaking tanks found on the site. In the immediate aftermath of the warehouse fire, little information was known about the exact contents of either tank. At the north end of the site was a crudely constructed wooden tank or pit with a plastic liner containing a highly acidic solution. Acid was leaking out and running through a culvert under some railroad tracks toward a creek. EPA collected about 400 gallons of pooled acid from a drainage ditch. Leakage was also discovered coming from a large storage tank closer to the warehouse that caught fire. EPA later found that the second tank held about 8,000 gallons of sodium hydroxide. ------- So-Green Emergency Response, Region 4 (Continued) EPA, together with the Georgia Environmental Protection Division, performed an initial inventory of the site. They found a variety of potentially hazardous chemicals including benzyl cyanide, toluene, sulfuric acid, phosphoric acid, pesticides, ammonium perchlorate, and isopropyl ether. Approximately 100 containers in sizes ranging up to 55-gallon drums were found. Other emergency activities included building secondary containment around the warehouse, and sampling contaminated soils and containers. On June 18, the OSC prepared an Action Memorandum that detailed further proposed response activities exceeding his $50,000 personal authority to carry out the emergency action. 326 ------- ^^* ^-^^ •<"*'WS#,j>. SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Southern Crop Services, Region 4 Delray Beach, Florida Status: Removal action took place from February 8, 1988, through March 4, 1989. This site is not listed on the National Priorities List. The site is located at an airport, but the owner has indicated he would not be renewing his aerodrome certificate when it expires. At present, the site is not in use, but there is potential for development. Surrounding land values have been increasing as the area is transformed from agricultural to residential uses (primarily as a retirement development). Results and Benefits: This removal action alleviated the threat of direct contact with contaminants to the general public and removed the source of ground-water and surface-water contamination. Thus, further spreading of contaminants by soil or surface- water migration to nearby or adjacent farmland was mitigated. The potential dispersal of contaminants into the surrounding area could have posed a potential threat through contamination of crops and produce. The potential contamination of food could have resulted in an additional threat to public health through handling or the consumption of contaminated goods. This was also the first site using a firm fixed- pricing contract for on-site incineration. Fixed pricing establishes a fixed dollar amount for a specific volume of materials to be incinerated. This type of contracting for these services demonstrates a control on pricing (i.e., there are no hidden costs because the price is fixed/ stabilized). Approximately 4,700 tons of soil were incinerated at a fixed price of $300/ton. Background: Southern Crop Services, Inc. (SCS) is located in a rural area on State Road 806, Atlantic Avenue, about 13 miles west of Delray Beach, Florida. The site consists of a rural airport and has a size of approximately 16 acres. The northern quarter of the property was used as the center of operations for an aerial applicator service; this was the area of highest pesticide contamination. Southern Crop Service had been in operation since 1969 as a contractor for the aerial application of agricultural chemicals, which consisted primarily of pesticides, fungicides, and herbicides. The contamination was primarily attributed to the improper disposal and spillage of chemical rinsates from the mixing, formulation, and loading of pesticides in the aircraft staging areas at the end of the runway. Additional contamination had been attributed to improper disposal of spent pesticides containers, and spillage in storage and disposal areas. The soil contamination has been detected over an area of approximately 2.5 acres and at depths of over 60 inches. One onsite monitoring well and one on-site deep well had detectable and increasing levels of the pesticide toxaphene. Samples indicated that the ground-water contamination was migrating. Actions: The excavation and preparation of the soil for incineration was an EPA-funded action that was conducted by Region 4's Emergency Response Cleanup Services (ERCS) contractor. The removal action included treatment of approximately 300,000 gallons of lagoon water by carbon absorption, and incineration of contaminated soil covering approximately 2.5 327 ------- Southern Crop Services, Region 4 (Continued) acres. Soil contamination was detected to depths of 40 to 60 inches surrounding the waste lagoon. The volume of contaminated soil was calculated to be 3,000 to 5,000 cubic yards. After treatment by onsite incineration, this site was periodically sampled and backfilled onsite. 328 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Wrigley Charcoal, Region 4 Wrigley, Tennessee Status: While still in progress, the Interim Remedial Action at the 3,000-acre Wrigley Charcoal site has, thus far, been successful in controlling a variety of site problems. This Interim Remedial Action is currently being expanded through a ROD Amendment to include a variety of additional cleanup activities that will provide an additional margin of effectiveness. At the current time, nearly all of the initial Interim Remedial Action activities (Phase I) have been completed at four site areas. Additional activities (Phase II) are planned to include the cleanup of a large sludge lagoon that has become increasingly unstable since the time the Interim Remedial Action ROD was issued. This large scope interim action contains many activities that are considered to be early final actions; however, overall the interim remedial actions are not considered to be permanent solutions for this abandoned industrial facility. To fully address the threats posed by contaminated site areas temporarily stabilized through the Interim Remedial Action, a final remedy employing the statutory preference for a reduction in contaminant/waste toxitity, mobility, or volume will be implemented in subsequent remedial actions. Results and Benefits: The Interim Remedial Action ROD presented thirteen multiple activity events that were intended to control or eliminate contaminants in association with tars, drummed wastes, and metallic wastes in a burn-pit all located at the Primary Site. The Interim Remedial Action ROD also included a variety of confirmatory sampling. Tar wastes were also known to reside at the Storage Basin, but cleanup of these wastes was not included in the Interim Remedial Action ROD, because at the time of the ROD they were determined to be stable. Since the time of the ROD, adverse site conditions now require the Storage Basin to be remediated. The overaE objectives of these actions are to prepare the site for full remediation during subsequent operable units. In 1988, large Primary Site tar pits were in danger of collapse into a nearby creek. In order to prevent a nearby water district intake on the creek from being inundated with tar wastes, the tar pits were temporarily stabilized, sheet piling reinforcements were installed, a spillway was constructed to divert flood waters, and the water utility intake was moved to another branch of the creek where it would not be impacted from potential site problems. This Emergency Response and Removal effort was successful in eliminating the substantial threats to human health and the environment by reducing risks associated with uncontrolled tar pit wastes, tar pit collapse, and contamination of the North Fork of Mill Creek and the Duck River Drainage Basin. Background: The Wrigley Charcoal site is located in rural Hickman County, Tennessee, and is approximately 45 miles southwest of Nashville. Known manufacturing operations, which began in 1881 and ceased in 1966, included: manufacturing of pig iron products, wood alcohol, wood oil, wood pallets, charcoal briquettes, lump charcoal, and liquid smoke. 329 ------- Wrlgley Charcoal, Region 4 (Continued) In addition, metals fabricating and machining were performed at the site from 1978 to 1983. Byproducts from wood retorting (distillation) operations included acetic acids, oils, tars, and methanol. These and a wide variety of volatile and semi-volatile organic wastes were placed in onsite tar pits. Volatile and semi-volatile organic contaminants were produced in quantity as a result of wood retorting, which produced charcoal for the blast furnaces, etc. These wastes, with associated contaminants, are located in significant quantities throughout numerous locations at the Primary Site and the Storage Basin. The Primary Site tar pits are located immediately above the west bank of the North Fork of Mill Creek. The bank of the creek appeared to have been built up to a height of about 20 feet in order to contain large volumes of tar-like wastes. Eight residences are located on a hiJl approximately 100 feet above (adjacent) the stabilized Primary Site tar pit area. Prior to water intake relocation in 1989, the Bon-Aqua- Lyles Water Utility District intake was located approximately 1.6 miles downstream of the •Primary Site tar pits. Prior to any site investigations, the drinking water intake was estimated to serve approximately 5,500 people. The site was brought to the attention of the Division of Water Quality Control PWOC) for the State of Tennessee in 1981 by a citizen complaint, which indicated that drums of hazardous chemicals were being stored on the banks of the North Fork of Mill Creek and that chemicals were leaking into the stream. In 1985, the complaint was submitted to State Superfund personnel who subsequently began investigating for contamination in various media. The investigators discovered visible seepage points in the berm and several areas where the seepage had actually contacted the creek. In April 1986, EPA's Technical Assistance Team took samples from the water intake, leachate stream, stream sediment, and the tar pits. Analytical results indicated that contamination on the Wrigley Site had not adversely affected the local drinking water via the intake, but the tar pits were close to collapse from erosion by the creek. The results of a field survey, conducted by an EPA contractor, indicated that the creek had cut approximately 10 feet into the berm and that the undercutting would likely continue to the point of tar pit failure. Additional investigative work during the remedial investigation/ feasibility study (RI/FS) confirmed that, as long as the Primary Site tar pits remained intact, further contamination of the creek was unlikely, RI/FS sampling and analyses also revealed that there were no detectable levels of contaminants downstream from the seepage points. Actions: While 1988 Emergency Response and Removal activities were very successful in temporarily reducing the threat of Primary Site tar pit failure, a variety of other site problems required remedial attention by 1991. The Interim Remedial Action ROD (also known as OU-1) and forthcoming ROD Amendment include a variety of cleanup activities intended to eliminate relatively small- scale imminent and substantial Site problems, and prepare the site for large-scale remedial activities intended to completely eliminate Site problems. The first phase of Interim Remedial Action activities is nearly completed, with the second phase proposed to begin by late 1994. Phase I has been very successful in eliminating process tanks and associated tars, remediation of a metals-waste filled burn-pit, removal of numerous non-PCB transformers and site debris (some containing asbestos), and reconstruction of the spillway that was destroyed by the flood of 1991. Activities proposed for Phase II include remediation of the Storage Basin sludge lagoon and a variety of associated activities that will eliminate site threats at this location. Wastes at the Storage Basin are located 330 ------- Wrigley Charcoal, Region 4 (Continued) on top of a hill in karst terrain approximately 1/2 mile from the neighborhood of west Wrigley. Potential waste disposal options include recycling of tars in a coking facility, utilizing the tars as a fuel in an industrial furnace, or removal of the tars in an approved EPA disposal facility. One of the primary reasons the tars may be utilized as a fuel is because the wastes closely resemble wood tars that have been historically utilized as a fuel due to their high BTU value. ------- Page Intentionally Blank 332 ------- REOION FIVE ------- Page Intentionally Blank ------- SUPERFUND SITE COMPLETED NPL SITE PACT SHEET A&F Materials Reclaiming, Inc., Region 5 Greenup, Illinois Status: The A&F Materials Reclaiming facility is an inactive industrial site. The Potentially Responsible Parties (PRPs), under EPA monitoring, completed all cleanup activities relating to the technical specifications for contaminated soil in 1985. Under EPA monitoring, the PRPs designed the technical specifications for ground-water monitoring. Ground-water monitoring began to the spiring of 1990 and will continue to confirm the reduction of contaminants in the ground water. Results and Benefits: The immediate actions of treating contaminated lagoon water and removing contaminated materials have significantly reduced the threat to the public and the environment. Cleanup of the contaminated soil has further reduced site contamination levels. Also, ground-water monitoring activities will ensure that contaminant levels continue to decline. Background: This site is located on almost 4 acres of land on West Cumberland Street in Greenup, Illinois. The site is bounded by open farmland/ woodland, the Village of Greenup Wastewater Treatment Plant, and private residences. In addition, the City of Newton has occasionally withdrawn drinking water from the Embarras River, which is located 1/2 mile from the site. The site slopes toward the Embarras River, and drainage from the site reaches the river via ditch along the railroad tracks. The site was originally an undeveloped backwater flood zone for the Embarras River and was first developed for a saw mill operation. Mr. Ken Ault purchased the site for A&F Materials Reclaiming, which operated at the site from March 1977 until 1980. The plant processed waste materials including, oil, sludge, and caustic and sulfuric acid into fuel oil and fire retardant chemicals. During the course of operations, there were numerous violations of the operating permit issued to the plant by the State. By March 1978, four storage lagoons became filled and began to overflow, contaminating the soil and drainage pathways leading to the river. In addition, 13 steel storage tanks containing a mixture of waste oils contaminated with polychlorinated biphenyls (PCBs) and organics, sludges, spent caustics and acids, contaminated water, and other waste products were located onsite, and there had been releases to the environment from the tanks on several occasions. Actions: In March 1980, May 1982, and December 1982, actions were taken at the site to lower the immediate potential of releases. These actions included lowering the level of wastes in the lagoons, diking, trenching, cleanup, and removal of onsite and offsite wastes. In addition, a temporary cap was placed on the consolidated sludge in March 1983. In September 1984, the Aluminum Company of America, Northern Petrochemical, Cam-Or Inc., and Petrolite Corporation entered into a partial consent 33S ------- A&F materials Reclaiming, Inc., Region 5 (Continued) decree (PCD) whereby the companies agreed to undertake surface cleanup at the site as an additional removal and remedial action. Pursuant to this PCD, a remedial investigation/ feasibility study (RI/FS) was prepared by the consenting defendants which determined the amount of soil/sludge to be removed and the extent and flow direction of ground-water contamination. Following the soil removal in 1985, only phenols and benzoic acid were detected above the nondetectable limits. A ground-water monitoring program was established to ensure that all residual ground-water contamination remaining after the 1985 cleanup will steadily decrease to safe levels by natural dilution and purging to the Embarras River. In addition, institutional controls will be implemented to ensure that drinking water wells are not installed in contaminated ground-water areas during the period of natural purging and dilution. Procedures will also be established for a regular review of the monitoring data until safe levels are reached. Contaminants of concern include: sulfate, total dissolved solids, trichloroethylene (TCE), and metals. The selected remedial action for the site included: removal and disposal of all soils contaminated over the recommended action levels, including soils containing greater than 1 ppm PCBs; ground-water monitoring; cleaning and removal of onsite equipment and buildings; testing and disposal of soil underlying the building if it is found to be contaminated above the recommended action levels; grading of the site; and removal of the fence surrounding the site. 336 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Adrian Well Municipal Well Meld, Region 5 Adrian, Minnesota Status: All remediation activities necessary to address the sources of contamination to the ground water have been completed. The existing ground-water contamination that resulted from contaminant releases from the source areas is being addressed by the State Underground Storage Tank (UST) program. (EPA transferred cleanup responsibility for this site to the UST Program, because the Superfund program does not have authority to address the cleanup of petroleum releases.) No further action will be taken under the Superfund program at this site. Results and Benefits: The installation of two new wells outside of the area of contamination (AOC) has virtually eliminated the potential for exposure to contaminated drinking water for users of the municipal system. Current site activities are similar to those conducted prior to the listing of the site on the National Priorities List (NPL). Background: The Adrian Well Municipal Well Field site is in the City of Adrian, in west-central Nobles County, in southwestern Minnesota. The 1992 population of Adrian was approximately 1,400 residents. The city relies solely on ground water for its municipal water supply. The area of investigation was in the north-central portion of the city along the southern bank of a channel occupied by Kanaranzi Creek. In 1983, the Minnesota Department of Health (MDH) detected volatile organic compound (VOC) contamination in two of the six wells at the Adrian Well Municipal Well Field site. By 1985, the city had replaced the VOC-contaminated wells with two new wells. Subsequent ground- water sampling indicated that petroleum releases from USTs in the vicinity of the site were the sources of the soil and ground-water contamination. Actions: Activated carbon filtration was installed and operated for the contaminated city wells from July through November 1984. Landowners of the potential contaminant sources removed three inactive gasoline USTs by August 1985. Although ground-water contaminant concentrations exceeded Federal and State drinking water and surface water standards, the September 29, 1989, Record of Decision (ROD) specified that no further action would be taken by the Superfund program, and EPA formally transferred the site to its UST Program in October 1989 for further action. Between 1986 and 1991, six USTs within the AOC, and areas of soil contamination that could be removed in a cost-effective manner, were removed. 337 ------- Page Intentionally Blank 338 ------- SUPERFUND SITE COMPLETED NPL SITE PACT SHEET Algoma Municipal Landfill, Region 5 Algoma, Wisconsin Status: Remediation construction activities were completed in December 1993. Ground-water and gas monitoring will continue to be conducted, as will restricting the use of contaminated ground water. Five-year reviews of the effectiveness of the landfill cap will be conducted. The site is currently a 15-acre closed landfill. Results and Benefits: The selected remedy provides institutional controls that restrict access to the landfill to ensure that future use of the site does not increase the release or potential release of hazardous substances to the environment. A fence has been installed to protect the public from direct contact with the site contaminants and to prevent disturbance of the cover. Ground water has been protected from future contamination. Background: Algoma Municipal Landfill is a 15-acre tract of land that was licensed and operated by the City of Algoma as a municipal landfill from 1969 to 1983. The site consisted of the main unit, known as the Landfill Disposal Area (LDA), and two other minor land disposal areas outside the licensed tract, known as the North Disposal Area (NDA) (1 acre) and the South Disposal Area (SDA) (1.5 acres). Most of the waste accepted was municipal refuse; however, paint wastes, lacquers, thirmers, and asbestos wastes were also disposed of at the landfill. The landfill was closed in 1983 and was covered with day and topsoil. The landfill has no liner and is underlain by a sand and gravel aquifer and a deeper aquifer, both of which provide water for area wells. In 1984, EPA detected volatile organic chemicals (VOCs) and heavy metals to onsite monitoring wells. Benzene, iron, cadmium, and manganese concentrations were found at levels that exceeded the Wisconsin NR 140 ground-water quality enforcement standards (ESs); chromium and mercury were found at levels that exceeded preventive action limits, but not the ESs. Actions: In 1990, the potentially responsible parties, under EPA monitoring, completed an investigation of the site. The report indicated that the landfill cap did not meet State safety standards and that the ground water was contaminated. In August 1993 remediation construction began at the site. Activities included: defining the waste limits for the site, construction of a 2-foot clay layer on top of the landfill with a soil cover to protect the clay from freeze-thaw conditions, installation of a passive gas venting system, monitoring weE construction and replacement, placement of a soil cover over the NDA and SDA, fabrication of a fence around the disposal areas, and implementation of deed restrictions on affected property. 339 ------- Page Intentionally Blank 340 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET American Anodco, Inc., Region 5 Ionia, Michigan Status: EPA has determined that "No Action" with ground-water monitoring is necessary to address the contamination that remains at the American Anodco site. Previous response actions eliminated the need to conduct additional remedial action at the site. Monitoring of the inorganic contaminants in the ground water will continue for 2 months. Results and Benefits: Only trace amounts of inorganic contamination remain in the ground water at the site. EPA has determined that the presence of these compounds does not pose an unacceptable risk to human health or the environment, because all chemicals are below the maximum contaminant level (MCL). Background: Since 1962, aluminum parts for the automotive industry have been cleaned on the 8-aere American Anodco, Inc. site. In 1962, under an agreement with the State, process wastewaters and spent chemicals from the site were discharged directly to the onsite seepage lagoon. The wastestreams contained heavy metals that leached from metal parts during the anodizing process. To promote wastewater infiltration, lagoon sludge and sediments were dredged in 1972 and 1978 and placed near the lagoon. In 1978, American Anodco received approval from the State to continue discharging wastewater into the lagoon. According to analyses conducted by the EPA, the water placed in the lagoon contained nitric acid and chromium. In 1986, American Anodco began to phase out the use of the seepage lagoon, and in 1987, it began discharging process wastewaters to a new public sewer system. Approximately 1,100 people reside within a mile of the area. The glacial drift aquifer underlying American Anodco supplies public and private wells within a 3-mile radius; these wells serve over 10,000 people. Grand River, which is within 3 miles of the site, is used for fishing and recreation. Actions: In 1987, American Anodco dewatered the lagoon, removed the sludge, and disposed of it in an offsite landfill. The lagoon then was filled with clean soil. Excavated soils, clays, and sludges were placed in an offsite disposal facility. Followup sampling indicated that, in some cases, additional excavation was required. These materials were treated and/or removed to an offsite disposal facility. Sampling analysis following this additional excavation confirmed that remaining site should have achieved all Michigan Act 307 cleanup standards. As a result, a "no action* was required at the site. 341 ------- Page Intentionally Blank 342 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Anderson Development Company, Region 5 Adrian, Michigan Status: Remediation activities are complete, and a pre- final inspection was completed on September 23, 1993. Ground-water monitoring was completed in January 1994. The site is currently used for industrial purposes; specifically, the manufacturer of organic chemcals. Results and Benefits: The selected remedy attains all Federal and State requirements and is protective of human health and the environment by treating all contaminated lagoon area media found to be above the cleanup level. The cleanup of residences has reduced the risks to human health. Future protection of ground water has been achieved. Background: The Anderson Development Company (ADC) manufactures specialty organic chemicals in Adrian, Michigan. The site occupies approximately 12.5 acres within a 40-acre industrial park, which is surrounded by residential areas. ADC began the manufacture of 4,4-Methylene bis (2-chloroaniline) (MBOCA) in 1970 to be used as a curing agent for polyurethanes and epoxy resins. MBOCA is highly toxic and can be absorbed through the skin. Untreated wastewater from the MBOCA production process was discharged to an onsite pretreatment lagoon and to surface water until 1973, when it was sent to a local POTW. In 1979, the POTW, as a result of decreased efficiency caused by MBOCA contamination, ceased accepting the wastewater from ADC. Production of MBOCA ceased in 1979 when it was discovered in onsite soil and sediment. Actions: In 1980 and 1981, responsible parties conducted an extensive cleanup and monitoring program that involved soil sampling, in-plant decontamination, street sweeping, and home carpet vacuuming and shampooing. Contaminated soils were placed in the Wayne County Municipal LandfiE. On January 5, 1992, after the completion of a remedial investigation and analysis, ADC conducted the following remedial actions: excavating contaminated soils, sludge, and clay with high MBOCA levels; staging of contaminated soils, sludge, and clay and processing of these matrices in a low temperature thermal desorption device; placing treated soils, sludge, and clay back into the excavated lagoon, covered with clean, native soil; and, air monitoring during remedial action. Ground-water monitoring followed the completion of remedial action and was finished in January 1994. 343 ------- Page Intentionally Blank 344 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Belvidere Municipal Landfill, Region 5 Libertyville, Illinois Status: As a. result of remedial actions, construction of the ground-water extraction system has been completed. Deed restrictions are in place to restrict ground water use as drinking water. The site, a closed landfill, is owned by the County Conservation District and is included in the park system. Results and Benefits: Surface remedial goals were achieved. The site was transferred to the Boone County Conservation District and will be formally incorporated into a nearby park system when ground-water treatment is concluded. Background: The Belvidere Municipal Landfill, occupying 19.3 acres of a 139-acre site, is located outside the City of Belvidere, Boone County, Illinois. The site is located within the 100-year floodplain of the Kishwaukee River, which is adjacent to the site. Within the site are two ponds and a drum disposal area. From 1939 to 1973, the City of Belvidere operated the landfill that received municipal wastes. In 1970, the City applied for a solid waste disposal permit. Though the permit was for landscape waste, demolition debris, municipal garbage, and partially dewatered sludge, other materials were accepted. In 1971, the operator disclosed that over 100 tons per day of commercial and industrial source waste were deposited onsite. Approximately 790,000 cubic yards of waste were disposed of at the landfill. The Illinois EPA denied the City's permit in 1971, and the site was formally closed in 1973. At closing, it was inadequately covered with sandy soil excavated from a borrow pit and soil left over from highway construction south of the facility. Over the next 7 years, the Illinois EPA repeatedly cited the landfill for cover violations. Upon further investigation, the primary contaminants of concern found to be affecting the soil and ground water were organics, polychlorinated biphenyls (PCBs), polycyclic aromatic hydrocarbons (PAHs), metals, and lead. Actions: In 1986, EPA staged and sampled 110 drums. Workers crushed and relocated 65 empty drums to a new holding area for disposal, and contaminated soils were excavated and loaded into boxes. EPA chose to solidify liquids with cement and transport them offsite for disposal. In 1988, EPA selected to cap the landfill, incinerate the PCB-contaminated soil, address the ground-water contamination by pump and treat with the discharge being routed to the City's water treatment plant, install a fence, and impose deed restrictions to control unacceptable activities and construction onsite. EPA approved the technical designs for the cleanup in 1990, and the potentially responsible parties began site work. A flood protection berm was constructed to protect the landfill from a 100-year storm event. Construction of a ground-water barrier extraction system (GBES) 345 ------- Belvidere Municipal Landfill, Region 5 (Continued) was completed in 1991. The deed restrictions in place prohibit ground-water use for drinking water. The PCB-contaminated soil was consolidated on the landfill and capped. 346 ------- Su UND SITE COMPLETED NPL SITE FACT SHEET Boise Cascade/Onan Corp./Medtronics, Region 5 Fridley, Minnesota Status: As a'result of remedial actions, sampling of all contaminated areas has indicated that the contaminants either have been removed from the site or confined within a containment vault built at the site. The site is currently used for manufacturing and commercial operations. Results and Benefits: All ground-water and surface cleanup work at this site has been completed, and EPA is continuing to monitor the air and surface water. The containment vault also will be monitored to ensure the long-term effectiveness of the remedies selected for the site. Medtronics agreed to help pay for the cost of cleanup. Onan Corporation and Boise Cascade initiated litigation to determine individual responsibility and determine an acceptable solution. Background: The Boise Cascade/Onan Corp./Medtronics site is located on 183 acres in Fridley, Minnesota. Boise Cascade operated a wood treatment facility using creosote and pentachlorophenol (PCP) to treat lumber. When Boise Cascade sold the site to Onan Corporation and Medtronics in 1979, soils were found to be saturated with creosote and pentachlorophenol. Ground-water contamination was a major concern because the towns of Fridley and Moundsview use municipal wells located near the site. Approximately 3,000 people live within 1 mile of the site; several residences are located within 500 feet. The site was listed on the National Priorities List (NPL) in 1984. Actions: The remedial action chosen included building a vault to contain and isolate the contamination, removing contaminated soil, and installing a subdrain system that would remove contaminated ground water and discharge it to the sanitary sewer. A long-term monitoring program was set up for ground water, surface water, air quality, and the vault constructed on the site that contains the contaminated materials. 347 ------- Page Intentionally Blank 348 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Bower's Landfill, Region 5 Pickaway County, Ohio Status: Superfund remedial construction activities are complete. Ground-water monitoring is continuing to ensure that no further offsite threats to human health or the environment occur. Operation and maintenance of the equipment for long-term treatment of the contaminated ground water has begun and will continue under the authority of the remedial program. This former landfill has been converted to wetlands. Results and Benefits: The source of contamination into the ground- water supply and the Scioto River has been identified and capped. Soil and surface water remediation goals have been met. The site is currently fenced and is fallow. Quarrying operations continue adjacent to the site. Pre- existing activities nearby, such as agriculture, truck maintenance, and auto salvage, are all operating. Reuse of the landfill appears unlikely for the near future; however, the surface has been stabilized and is being converted into wetlands. Background: A gravel pit operation was begun in 1958 in an agricultural area between the Scioto River and Island Road, 1 mile north of Circleville, Ohio, a town of 12,000 located 25 miles south of Columbus. This site is within the Scioto River floodplain and overlies an aquifer that is used to supply both household and industrial water. In conjunction with gravel removal, landfilling occurred. It is believed that local domestic wastes and chemical wastes from nearby industries were accepted during the 1960s. Topsoil from the gravel operation was used to cover the accumulated refuse. The 1988 remedial investigation for this site documented soil and ground-water contamination by metals and by organics, including pesticides, polychlorinated biphenyls (PCBs), and benzene. Actions: Cleanup alternatives were presented to the public in 1989 and field studies for the remedial design were completed in 1990. The remedial design was completed in 1991 and implemented in 1993. The long-term operating phase has begun to ensure that no further contamination escapes the site. Access to the site is restricted with fencing and natural barriers. Ground water and surface water are being monitored. Erosion control was begun, and a clay cap was placed over the site to limit additional percolation of surface water to ground water. The area has been grass-covered. 349 ------- Page Intentionally Blank 35O ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Burrows Sanitation, Region 5 Hartford, Michigan Status: Remediation construction activities have been completed at the Burrows Sanitation landfill. Soil and ground-water cleanup criteria have been met. The fenced site is currently a closed landfill. Results and Benefits: The selected remedy removed the pollutants from the soil and ground water so that the site does not contain any contaminants above health based levels. Human health and environmental risks resulting from direct contact or ingestion of soil have been eliminated. Protection of wetlands has been achieved. Background: From 1970 to 1977, the 15-acre Burrows Sanitation site was used for the disposal of plating sludges, waste coolants, and oils. The sludge contained such contaminants as: chromium, nickel, cyanide, copper, zinc, lead, and arsenic. The site has an East Wetland and a Northwest Wetland along its edges. The wetlands are interconnected and are drained by a drainage canal known as the Doyle Drain into the Paw River. to July 1984, approximately 8,500 cubic yards of contaminated soil and sludge were removed by a group of Potentially Responsible Parties (PRPs), and a fence was constructed to prohibit access to the site. EPA conducted a remedial investigation/ feasibility study (RI/FS) from August 1985 to August 1986. The investigation identified potential health risk areas, heavy vegetation stress in the Northwest Wetlands, and ground- water contamination at three well sites. Actions: Remedial actions for the Burrows Sanitation Landfill Site consisted of two phases. Phase I involved the excavation and removal of an additional 320 cubic yards of surficial soil and sediments from the site's spill area. The Northwest Wetland was also unblocked and rechanneled. Phase I was completed to May 1989. Phase II consisted of ground-water remediation. Initially, the contaminated ground water was to be purged and treated onsite, using chemical precipitation, for 3 years. After further studies were conducted, EPA decided that offsite treatment would be more cost effective, and a smaller, "scaled down* extraction system was installed in September 1991. Ground-water extraction was initiated on August 17, 1992. Ground-water cleanup criteria were met as of December 1993. 351 ------- Page Intentionally Blank 3S2 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Cemetery Dump Site, Region 5 Rose Township, Michigan Status: Remediation construction activities have been completed at the Cemetery Dump Site. Ground- water monitoring is complete. A fence around the perimeter of the site has been installed to restrict access. No further use restrictions have been placed on the site. The Cemetery Dump site is currently vacant and going through the deletion process. Results and Benefits: In 1989, the State, after extensive sampling and anaysis, determined that the removal of the source of contamination had corrected the situation; therefore, no further actions are planned. Five-year ground-water samples taken after remediation indicated no impact on ground water and show that the remedial action is protective of human health. Excavation of drums and contaminated soils and installation of a fence have ensured that the site remains protective of human health and the environment. Background: The 4-acre Cemetery Dump Site, once used as a sand and gravel pit, has been backfilled and cleared. Approximately 300 to 600 barrels containing unknown industrial wastes were believed to be illegaly dumped and buried on site in the late 1960s or early 1970s. In 1981, the Michigan Department of Natural Resources (MDNR) excavated a test pit and removed 20 to 30 drum fragments from the site. The fragments were taken to a federally-approved facility. Analysis of the barrel contents indicated the presence of paint sudges, solvents, and oils. The drum fragments and soil on the site contained volatile organic compounds (VOCs), polychorinated biphenyls (PCBs), and heavy metals including arsenic, cadmium, and lead. Ground water was contaminated with low levels of zinc and lead. The Cemetery Dump Site was placed on the National Priorities List (NPL) on September 8, 1983. Approximately 4,400 people live within 3 miles of the site. The closest residence is 300 feet away. All residences in the area use domestic wells for drinking water. Actions: The remedial action consisted of the waste excavation and offsite land disposal. Digging occurred in nine areas. A metal detector was used to verify that all metal objects had been removed. Drum fragments and the soil material closely associated with these fragments were considered contaminated and placed on a separate soil storage pad for offsite disposal. About 250 drums were excavated from the site, and approximately 10,000 cubic yards of material were disposed of at this facility. The last shipment of hazardous soil was shipped on November 10, 1988. During the course of the remedial action, the decontaminated water and rainwater from the storage pads were collected, analyzed, and stored onsite in two 10,000 gallon above ground storage tanks. This water was later taken to a wastewater treatment plant. A Record of Decision (ROD) for the second operable unit at the site was signed on September 29, 353 ------- Cemetery Dump Site, Region 5 (Continued) 1989, indicating that the selected remedy for this site was "No Further Action." Periodic ground-water sampling over a 5-year period is complete. 354 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Charlevoix Municipal Well Field, Region 5 Charlevoix, Michigan Status: Remediation construction activities at the Charlevoix Municipal Well Field were completed in 1989. All recommendations given in the Record of Decision (ROD) of September 30,1985, have been met. Sampling has verified that two plumes are assimilated into Lake Michigan at undetectable levels. Ground-water monitoring is ongoing. Results and Benefits; Remedial actions have eliminated the potential of exposure to contaminated drinking water. No further response is appropriate to provide protection of human health and the environment. Background: The Charlevoix Municipal Well Field site is located on the shore of Lake Michigan and consists of a municipal well system made up of a shallow well connected to a horizontal plume buried beneath the beach of Lake Michigan, This well is no longer in use. The plume collected ground water and channeled it into the well, where it was pumped to the distribution system. Approximately half of the water entering the system came from Lake Michigan and half from shallow ground water sources. The city's water system was interconnected with the South Charlevoix Township water supply, which is served by two uncontaminated wells. In 1981, the City of Charlevoix was notified by the Michigan Department of Public Health that its water system was contaminated. The city subsequently installed four monitoring wells near its municipal well with the assistance of the Michigan Department of Natural Resources (MDNR). EPA became involved with the site in 1982, when it installled nine ground water monitoring wells throughout the city. In 1982 and 1983, MDNR conducted several soil boring studies to locate the source of contamination and concluded that part of the contamination may have originated on a local school property. No discrete source of contamination was found in the soil. Ground water was contaminated with various volatile organic compounds (VOCs). Charlevoix installed a system to introduce oxygen into the municipal water supply in 1982; however, this aeration system has been only partially effective in removing contaminants from the water. To date, the sources of contamination of municipal water system have not been fully identified despite investigations conducted by EPA the MDNR. It is likely that there is no current source of contamination, but that ground water was contaminated by one or more spills or by a source that was later removed. Actions: The remedial construction action was completed in two phases. The first phase consisted of the construction of a water intake structure. Phase two addressed the construction of the water treatment plant. A limited action alternative was implemented and consisted of allowing the ground-water plumes to naturally migrate and 335 ------- Charlevoir Municipal Well Field, Region 5 (Continued) disperse into Lake Michigan which requires bi- private domestic drinking water wells within the annual ground-water monitoring. In addition, city limits. The entire city is served by the the City of Charlevoix prohibits the use of municipal water supply. 356 ------- Su SITE COMPLETED NPL SITE FACT SHEET Chem-Dyne Corp., Region 5 Hamilton, Ohio Status: Construction of the remedy at Chem-Dyne Corp. was completed in 1987. Long-term response action (LTRA) activities, which includes cap maintenance, ground-water pump and treat, and ground-water monitoring are ongoing. A fence around the perimeter of the site has been installed to restrict access. The site is currently vacant. Results and Benefits: The site no longer poses a threat to human health or the environment as a result of the excavation of soils, placement of a cap over the site, and ongoing operation of a ground-water pump and treatment system. Also, the State of Ohio is preventing the use of the contaminated aquifer. Background: The 10-acre Chem-Dyne Corp. site operated as an industrial chemical waste transfer, disposal, and storage facility. As early as 1974, chemical wastes may have been trucked to the site. In 1975, Spray-Dyne made antifreeze from recycled chemical wastes. The operation was expanded in 1976, and the Chem-Dyne Corporation was formed. Wastes that were unsuitable for recycling were stored in drums and tanks on the site or shipped to other disposal sites. More than 30,000 drums of waste and 300,000 gallons of bulk waste materials were on site when operations shut down in 1980. In the 5 years of operation, a number of environmental incidents were reported at the site. From 1976 to 1979, at least five fish kills in the Great Miami River were attributable to the Chem-Dyne facility; one fish kill stretched for 37 miles. Fires occured at the site in 1976 and 1979. A residential area is located approximately 1,000 feet from the site. A storm sewer drains the site into the Ford Canal, which flows into the Great Miami River. The Ford Canal is used only for drainage and hydroelectric power generation. The Great Miami River is used for recreation. Drinking water supplies in the area rely on ground-water as their source. Ground-water is contaminated with volatile organic compounds (VOCs) and heavy metals. Sediments in the Ford Canal contained low concentrations of organics. Soil was contaminated with VOCs, pesticides, other organic compounds, and heavy metals including mercury, arsenic, nickel, and beryllium. The onsite buildings were contaminated with polychlorinated biphenyls (PCBs). Actions: The remedial action was completed in one continuous phase. All site buildings were demolished, and uncontaminated salvageable materials were taken offsite. The remaining debris were stored onsite for placement under the site cap. A perimeter utility cutoff trench approximately 4,000 feet in length and 15 feet deep was excavated around the site, and all intercepted utilities were sealed. A storm sewer system for draining the capped site was installed, along with the ground-water extraction and injection system. 357 ------- Chem-Dyne Corp., Region 5 (Continued) In January 1988, the multimedia site cap was completed, and ground-water extraction and treatment were fully operational. Twenty-five extraction wells and eight injection wells were installed. The site cap was installed over 15 acres and required 640,000 square feet of high density polyethylene liner, followed by the placement of 118,000 cubic yards of material for layers of clay, sand, loam, and topsoil. The ground-water extraction and treatment system was designed to provide for the injection of a portion of the treated water to the aquifer to provide a flushing effect through the most contaminated areas. The remedial action calls for the ground-water cleanup to continue through 1997. If cleanup levels are not obtained, this cleanup will continue for an extended period. 358 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Chemical & Minerals Reclamation, Region 5 Cleveland, Ohio Status: Cleanup remedial activities were completed in mid-1982, and the site was deleted from the National Priorities List (NPL) on December 30, 1982. The site is currently vacant, located in the floodplain of the Cuyahoga River. Results and and Benefits: The removal of contaminated containers, vats, soil, and the demolition of all buildings onsite has eliminated the possibility of public exposure to a wide variety of hazardous materials at this site. The site is currently owned by a publishing company. A Consent Decree was signed in 1987 between EPA and all Potentially Responsible Parties (PRPs) that will recover more than 85 percent of EPA's cleanup costs. Background: The Chemical & Minerals Reclamation, Inc. (CMR) site covers 0.75 acres on the north side of Cleveland, Ohio, on the floodplain of the Cuyahoga River. The site is located in a metropolitan area bounded to the south and west by the Cleveland Memorial Shoreway, the old Cuyahoga River bed to the north, and industrial property to the east. This property was leased to CMR by the owner in 1979. For about 1 year, the site housed a chemical reclamation facility where drums of waste solvents were mixed in vats and bulked for shipment. The operations stopped on July 2, 1980, when a fire occurred in the warehouse onsite. The fire had been confined to the mixing vat area of the building, and caused a serious but temporary air pollution problem. The airborne contamination was serious enough to call for temporary closure of the busy Memorial Shoreway West. After the fire, the City of Cleveland, concerned that the remaining sections of the building would fall on the drums of chemicals stored in the warehouse, had the 1,597 containers ranging from 5 to 55 gallons removed to a plastic-lined staging area outside. Additionally, onsite soil was suspected to be contaminated by possible leaking and overflowing of the vats and barrels. Actions: Through coordinated interagency efforts the emergency action at this site took less than 8 months. EPA approved funding for emergency action on November 20, 1981. On November 25,1981, approval was issued to proceed with sampling drums and cleaning up the spilled material onsite. Over 2,000 containers of flammable and nonflammable solvent, paints, tars, grease, resins, and other miscellaneous wastes were removed. Liquid and solid materials from six 3,500-gallon vats were also removed. The buildings onsite were demolished, and the contaminated soil was removed to a licensed landfill. Clean soil was then used to backfill the excavated areas. 359 ------- Page Intentionally Blank 360 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Eau Claire Municipal Well field, Region 5 Eau Claire, Wisconsin Status: Remedial construction activities have been completed at the Eau Claire Municipal Well Field. Extension of the Eau Claire municipal water supply to previous well users was completed in 1990. There is ongoing ground- water treatment. Results and Benefits: Human health has been protected by extension of the municipal water supply to previous well users and cleaning the ground water by air stripping. This has resulted in the protection of human health from exposure to volatile organic compounds (VOCs) to contaminants and drinking water. Background: The Eau Claire Municipal Well Field site covers 500 acres and consists of 14 wells that all used as a source of drinking water for the residents of Eau Claire County. In 1981, the Wisconsin Department of Natural Resources (WDNR) sampled ground water from the Eau Claire Municipal Well Field as part of an EPA- sponsored ground-water survey of 20 Wisconsin cities. WDNR's sampling detected volatile organic compounds (VOCs), primarily in the north well field. However, the level of VOCs deliverd to homes remained below the State water quality standards. In 1982, the city began monitoring VOC levels in residential wells near the municipal field. In 1983, the city found that VOC levels in one well exceeded the State's water quality standards and recommended that its owner use bottled water instead of ground water. In 1984, five municipal wells in the north field also were found to be contaminated with VOCs (tetrachloroethene and trichloroethylene). The contamination at the site initially was characterized as two separate plumes. The municipal well field serves approximately 57,600 residents of the county. Also, an unknown number of residents in the county pump their own ground water from privately- owned wells. Actions: The remedial action consisted of two stages: immediate actions and a long-term remedial phase focusing on cleanup of the entire site. The remedies included withdrawing water from the existing municipal wells in the north well field and removing VOCs from the water using the existing air stripper, and installing extraction wells in the north field and discharging water extracted by those wells in Plume f 2 and discharging water extracted by those wells directly to the Chippewa River without treatment. Other actions included connecting to the city water system or providing individual treatment units to those residences within the contaminated areas; and monitoring ground water quality during the action to determine when the ground water has been cleaned up to meet State and Federal guidelines. 361 ------- Page Intentionally Blank 362 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET E.H. Schilling l>"dfni, Region 5 Hanging Rock, Ohio Status: This site is currently fenced and inactive, warning signs are posted, and a barrier prevents vehicles from entering the premises. As a result of remedial actions, deed restrictions have been imposed to prevent excavations and to protect the integrity of the earthen dam and cap. The site was listed on the EPA construction complete list in September 1993. Results and Benefits: The Ohio River and ground water have been protected from contaminated leachate. Signs, fencing, and the cap prevent accidental exposure to humans. An existing dam now meets safety standards. The responsible parties paid for all costs associated with the cleanup of this site. All remedial actions were completed in less than 14 months. Background: The 3-acre site operated as an industrial waste landfill from 1969 until 1980. The landffil was licensed to accept only nonhazardous waste, but was closed in 1980 as a result of permit violations. A variety of hazardous and nonhazardous wastes were landfilled on the site. The waste is contained behind a pre-existing earthen dam and beneath a cover of soil. While the dam was structurally stable, it did not comply with existing safety standards. The landfill cap also failed to comply with State and Federal regulations. Nickel has been detected in the air, and arsenic and volatile organic compounds (VOCs) have been found in the ground water. Leachate, soil, and stream sediments are contaminated with VOCs, polycyclic aromatic hydrocarbons (PAHs), and heavy metals. Approximately 1,500 people live within 3 miles of the site, with the closest residence located within 1/4 mile of the site. Domestic water is taken from municipal and private wells. Wayne National Forest borders the site from the north. An unnamed stream carries runoff from the site into Winkler Run and the Ohio River. Actions: Leachate was discovered seeping from the face of the dam in 1979, and the site was placed on the National Priorities List (NPL) in 1983. After adding this site to the NPL, the EPA performed preliminary investigations and determined that no immediate actions were required. In March 1989, the remedial investigation identified a number of potentially hazardous chemicals in the environment at and around the landfill. These included nickel in the air, and arsenic in the soil, sediment, ground water, and surface water. A remediation plan proposed in August 1989 called for the restriction of site use and access, construction of dam improvements, and installation of a leachate treatment facility. Remedial activities began in July 1992 and were conducted and paid for by the responsible parties. Since then, a new multi-layer cap has been installed, and approximately 7 million gallons of liquid waste and leachate from the landfill have been removed and treated. Additionally, berms and a cutoff wall were constructed around the landfill to prevent 363 ------- E.H. Schilling Landfill. Region 5 (Continued) surface and ground water from infiltrating the waste. Over 750 cubic yards of contaminated soil and 500 cubic yards of stream sediments were also consolidated under the cap. A fence was built to limit access to the site. Long-term ground-water monitoring is being conducted. 364 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET FMC Corporation, Region 5 Fridley, Minnesota Status: As a result of remedial actions, the FMC Corporation continues to operate a naval ordnance manufacturing complex on this former Superfund site. Long-term ground-water extraction will continue until cleanup goals are met. Results and Benefits: The remedial actions, which included soil aeration and ground-water extraction, are protecting the Minneapolis drinking water intake and potential future well sites in the area. Background: The 18-acre site FMC Fridley Plant site is located in an industrial area north of Minneapolis. From 1945 to 1969, the southern portion of the site was used for burning and disposal of wastes, including plating wastes, paint, paint sludges, oils, bottom ash, and chlorinated and nonchlorinated solvents. The sludges and solvents were dumped in an 11-acre unlined landfill on the site. The land is adjacent to the Mississippi River, about 1/4 mile from the drinking water intake for the City of Minneapolis which serves about 500,000 people. Just prior to listing on the National Priorities List (NPL) in 1982, the area west of the property was purchased by Anoka County for development as park land. The areas on the other sides of the site are zoned for heavy industry. Soil and ground water at the site were found to be contaminated with volatile organic compounds (VOCs) including trichloroethylene (TCE) and benzene. The contamination extended from beneath the disposal pits to the surficial and confined alluvial aquifers, which discharge to the Mississippi River. Physical contact with the highly acidic refinery sludges was a potential health threat. TCE was detected in high concentrations near the Mississippi River and probably contributed to the detection of VOCs in the Minneapolis drinking water supply intake. The cities of Fridley and Brooklyn Center were withdrawing drinking water from the contaminated aquifer. In 1983, the site ranked first on EPA's NPL. Actions: Five ground-water extraction wells were installed to remove contaminated ground water and to prevent contaminants from leaving the site, reducing the migration of TCE, via ground water, from the site into the Mississippi River. Currently, extracted ground water is being discharged to the municipal sewer system. Ground-water use restrictions were imposed. Contaminated soil was removed and aerated in a vault to remove VOCs. A day cap was installed to contain the contaminated soil 365 ------- Page Intentionally Blank 366 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET General Mills/Henkel Corporation, Region 5 Minneapolis, Minnesota Status: Remedial construction activities at the General Mills/Henkel Corporation site have been completed. A fence surrounds the site. The site is currently being used as a multibusiness technical center and for research laboratories. Results and Benefits: The site does not currently pose a direct threat to human health because the ground water is not used for consumption and access to the site is prevented. The potential for exposure to hazardous materials at the General Mills/ Henkel site has been greatly reduced through the ground-water extraction and the construction of a fence. Background: The General Mills/Henkel Corporation site is located in an industrial section of Minneapolis. General Mills operated a technical center and research laboratories at the site from 1930 through 1977. Food research was conducted until 1947, when chemical research began. From 1947 to 1962, solvents were disposed of in a soil adsorption pit and are believed to be contained to three buried, perforated 55-gallon drums, stacked one on top of another, with the deepest drum 10 to 12 feet below the ground surface. Approximately 1,000 gallons of solvents per year were disposed of in this location. Ground water and soils were contaminated with volatile organic compounds (VOCs) including benzene, chloroform, toluene, and xylenes. Approximately 4,900 people live within 1 mile of the property. Access to the site is restricted. All residences and businesses in the area are connected to the municipal water system. This water is obtained from the Mississippi River north of the city. Actions: The site remediation consisted of three stages: interim actions and two long-term remedial phases directed at cleanup of the entire site. Six ground-water extraction wells were installed by General Mills to remediate the ground water. Three of the six extraction wells are used to extract contaminated ground water from locations downgradient from the site and within the glacial drift aquifer with the remaining three extraction wells placed on the General Mills site. Ground-water from locations downgradient from the site and within the glacial drift aquifer with the remaining three extraction wells placed on the General Mills site. 367 ------- Page Intentionally Blank 368 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Grand Traverse Overall Supply Company, Region 5 Greilickvffle, Michigan Status: The remedial actions at the Grand Traverse Overall Supply Company are complete. No operation and maintenance activities are required. A no action Record of Decision (ROD) was given on February 3, 1992. The site is currently used for commercial purposes. Results and Benefits: The replacement of contaminated wells and removal of contaminated soils have reduced the potential for exposure via drinking water to site- related contaminants. Background: The Grand Traverse Overall Supply Company (GTOS) site is a commercial laundering facility covering 1 acre in Greilickville. The facility was built in 1953, and dry-cleaning machines were installed in 1968 and 1973. The facility no longer is used for dry cleaning, and the machines were removed in the early 1980s. A dry well was used to collect waste until 1955, but seepage lagoons were constructed in 1955, 1961, and 1968 and collected wastes until 1977, when the facility began discharging waste to the sanitary sewer system. In 1978, the Michigan Department of Natural Resources discovered that ground water in the area was contaminated with volatile organic compounds (VOCs). At least 10 wells were found to be contaminated, including a well used by an elementary school adjacent to the facility. The school and other residences used bottled water until new wells in a deeper confined aquifer were installed. The contaminated wells were capped when the new wells were drilled. In the late 1970s, the lagoons on the site were drained and filled with gravel, and contaminated soils around the dry well and barrels of waste sludge were removed. Lagoon sediments, dry cleaning waste sludges, soil from the dry well, and wastewater and cooling water are contaminated with trichloroethylene (TCE) and perchloroethylene. Approximately 1,200 people live within 3 miles of the site. The nearest residence is 250 feet south of the facility. Cedar Lake, Cedar Lake Outlet, and Grand Traverse Bay are all less than 1/4 mile away from the site. Cedar Lake and Grand Traverse Bay are used for swimming and other recreational activities. Actions: The initial remedial actions included replacing contaminated drinking water wells with new wells that extend into deeper uncontaminated semi-confined aquifer, and excavating the onsite dry well and adjacent contaminated soils, with offsite disposal of excavated materials. In addition, three of the four lagoons were gravel filled, covered with asphalt, and converted to a parking lot The fourth lagoon was backfilled and ultimately returned to a grassy area. 369 ------- Page Intentionally Blank 37O ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Gratiot County Golf Course, Region 5 St. Louis, Michigan Status: All cleanup remedial actions have been completed, and the site no longer poses a threat to public health or the environment. The site remains in use as a golf course. The site was deleted from the National Priorities List (NPL) in September 1983. Results and Benefits: The immediate actions performed have removed the sources of contamination and any potential threats at the site. Site evaluations determined that no additional cleanup work was required. The site continues to be used as a recreational golf course while cleanup actions at the related NPL site in the area are ongoing. Cleanup costs were borne by the Potentially Responsible Parties (PRPs). Background: The Gratiot County Golf Course site covers 3 acres in St. Louis, Michigan. Prom 1956 until 1970, the Michigan Chemical Corporation, later purchased by the Velsicol Chemical Corporation, burned and disposed of approximately 2,000 to 3,000 gallons of industrial waste, including the pesticide DDT, on the site prior to the development of the golf course. Waste seeped from the site into the Pine River, which is used for recreational activities. Surface water was found to be contaminated with benzene. About 5,500 people use ground water for drinking water within 3 miles of the site. Two municipal water weEs are located within 3 miles of the site. Both ground water and soil were contaminated with volatile organic compounds (VOCs) and heavy metals. Actions: Contaminated sediments were removed to the Velsicol Plant and disposed of in accordance with the cleanup plan for that site. Additionally, contaminated ground water underlying the golf course area is contiguous with contamination at neighboring sites and was addressed as part of their cleanup strategy. The affected area of the golf course was excavated, and several million gallons of ground water have been treated. All cleanup actions were completed before the first final NPL was established. 371 ------- Page Intentionally Blank 372 ------- SUPERFUND SITE COMPLETED NPL SITE PACT SHEET Hedbltun Industries, Region 5 AuSable Township, Michigan Status: The Hedblum Industries site is an active industrial facility that produces aircraft parts near Oscoda, Michigan. All remedial actions have been completed. Ground-water treatment and monitoring will continue until ground water is cleaned to levels agreed upon by the State and EPA. Results and Benefits: This site is in productive use. Ground-water pumping and treatment are ongoing to ensure that private wells and the nearby surface waters are not threatened by the contamination. The responsible parties have contributed to the past costs associated with the site's cleanup. Background: The site property has been used since 1958 by several businesses involved with the manufacture of automobile and airplane parts. From 1974 to 1979, the site was occupied by Hedbium Industries, an automobile parts manufacturer. The site, located in an industrial area, consists of 10 acres of land and a manufacturing plant building. The Huron National Forest lies to the west of the site, and a residential area is located across the Detroit and Mackinaw Railroad tracks east of the site. A bayou, containing swampy land and backwaters of the AuSable River, forms the border of the residential area. Contamination problems were first suspected in 1972 when the State inspected the site and found that the operating company at that time was dumping small amounts of trichloroethylene fTCE), a common solvent, onto the ground. The State also learned that the company had dumped approximately 4,000 gallons of TCE on the site property since 1968. In 1973 through 1976, the State and the party responsible for the spills sampled the wells in the area and found that all were contaminated with TCE. In 1977, the City of Oscoda extended the municipal water supply to 80 of the 90 residences affected. In 1980, the State and county discovered an underground storage tank containing TCE and triehloroethane fTCA). This tank was immediately removed offsite. In 1982, the State finished its ground-water study and concluded that the northern section of the site was contaminated with TCE, TCA, and perchloroethylene (PCE). Actions: In 1983, the Hedblum Industries site was added to the National Priorities List (NPL). In 1985, Hedblum Industries was purchased by an aircraft parts manufacturer. In 1986, the State and responsible parties, under EPA's supervision, began the remedial investigation and feasibility study. The study found that the soil was not contaminated. The cleanup plan, which was approved in September 1989, called for pumping contaminated ground water and treating it to remove contamination as well as determining if the soil in the northern section of the site was contaminated and affecting the ground water. 373 ------- Hedblum Industries, Region 5 (Continued) The final design plan included the installation treated, and discharged into the AuSabie River of three ground-water extraction weEs in the bayou. The treated water will meet Michigan residential area nearby and one immediately discharge limits before it will be released into north of the plant building. A water treatment the bayou. The ground-water cleanup is facility has been constructed onsite. The expected to take 5 years. contaminated ground water pumped from the wells is being piped to the treatment facility, 374 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET IMC Terre Haute East Plant, Region 5 Terre Haute, Indiana Status: Construction at the International Minerals & Chemical Corp. (IMC) Terre Haute East Plant site was completed in 1980. The IMC has been deleted from the National Priorities List (NPL). Inspection monitoring and maintenance activities be ongoing for the next 25 years, along with annual reporting of monitoring results to the States. The site and the warehouse on the grounds are currently vacant. Results and Benefits: Removal of waste from parts of the site and containment of the waste made the surface safe and protected ground water. Ground-water monitoring is ongoing. Because of the immediate actions conducted by IMC to make the land surface safe, a decision was reached in 1988 that no further cleanup action was necessary. The site no longer poses a threat to human health or the environment. Background: The IMC Terre Haute East Plant site consists of 6 acres of a 37-acre lot and is located in southeastern Terre Haute, about 2 miles east of the Wabash River. It is bordered on the east and west by various railroad facilities. From 1946 until 1954, the Commercial Solvents Corporation (CSC) manufactured and stored benzene hexachloride (BHC), a raw material used in the production of pesticides, at the facility. Wastes generated from the production of BHC were collected on the site property in a sump and eventually were disposed of at the Canal Road Dump, located a few miles south of the property. In 1975, IMC purchased the site. Beginning in 1979, IMC collected samples of soils from the East Plant facility and the Canal Road Dump and analyzed them for the presence of site-related contaminants. IMC also installed monitoring wells on and around the East Plant property to determine if contaminants were migrating from the site into the ground water. The results of these studies confirmed the presence of BHC in soil samples and in samples collected from two of the ground-water monitoring wells. EPA became involved in activities at the site in 1984, when contamination was detected in some of the monitoring wells. While residential wells were found to contain varying amounts of volatile organic compounds (VOCs), none of the samples taken contained BHC. The Record of Decision (ROD) requested low action remedy in June 1988. The population of the City of Terre Haute is approximately 61,000. The majority of the residences within the vicinity of the site are connected to the municipal water supply system; the others depend on private wells for their drinking water supply. Approximately 30 nearby residential wells are located downgradient of the site. Actions: The remedial activities at this site included excavation of approximately 18,500 cubic yards of contaminated soil, rubble, piping, and other debris. The debris were stockpiled in an onsite mound on the East Plant property. The stockpile 375 ------- IMC Terre Haute East Plant, Region 5 (Continued) was covered with clay, common fill, and loam, then seeded in 1980 to prevent erosion that could result in exposure to contaminants. This cover included a surface drainage collection system and venting mechanisms that allow gas to escape from the soil. In 1981, IMC, under State supervision, installed additional ground- water monitoring wells uphill and downhill of the stockpile mound. From 1981 to the present, these wells have been monitored for the presence of BHC and other contaminants. The following maintenance activities will be done over a 30- year period: inspection of the existing cover; maintenance of the vegetation cover; monitoring BHC in the ground water semi-annually for 5 years and annually for the next 25 years; annual reporting of monitoring results to the State; restriction of access to the site; and establishment of a contingency plan that provides appropriate cleanup measures to be taken if there is a chance that BHC may be released into the environment from the site. 376 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Johns Manville Corporation, Region 5 Waukegan, Illinois Status: By sealing off the asbestos pit and covering the contaminated soil to reduce the migration of asbestos fibers into the air and ground water, the potential for exposure to hazardous materials has been eliminated. The only remedial activities remaining are maintenance of the multilayer cover and continued air, surface water, and ground-water monitoring. In 1996, EPA will conduct a 5-year review of the site to confirm that cleanup standards are still being maintained. Now under new ownership, the plant continues to produce construction materials, but asbestos and lead are no longer used. Results and Benefits: The benefits from this Superfund cleanup response include the elimination of airborne asbestos fibers and the threat of offsite migration of volatile organic compounds via ground and surface water. The site continues to be used for manufacturing operations. Background: This site covers approximately 120 acres and is bordered by Lake Michigan and Illinois Beach State Park to the north and east, respectively. The City of Waukegan borders the site to the east with a population of 75,000. Approximately 200 residences are within 1 mile of the site. From 1922 to 1983, waste materials containing primarily asbestos, the heavy metals lead and chrome, and the volatile organic compound (VOC) xylene were deposited in onsite pits. Manufacturing wastes laden with asbestos and toxic substances were dumped for more than 70 years in these pits, forming an enormous landfill. Industrial wastewater pooled into acres of settling ponds. Waste materials cover a large portion of the disposal area and form a benn that is approximately 25 to 30 feet high. Airborne asbestos endangered approximately 5,000 workers and residents present in the general area during the day shifts and threatened ecological areas in the adjacent State park. Actions: At the State's request in 1982, EPA collected air samples, finding elevated levels of asbestos in the air and downwind areas. Additional studies revealed arsenic and asbestos in ground water, and lead and asbestos in the roadways, sludge, and waste materials. The site was listed on the National Priorities List (NPL) in December 1982. In 1984, EPA began comprehensive site studies to determine the nature and extent of contamination, to June 1984, EPA and Manville signed an agreement in which the company agreed to complete these investigations. The resulting 1985 report documented more than 3-million tons of asbestos, chromium, xylene, and other contaminants at the site. In June 1987, EPA selected a remedy for the site. The remedy included capping of waste materials in the landfill with a 24-inch protective cover of sand, day, and top soil, and the closure and covering of several of the wastewater settling ponds. The multilayer covers are being 377 ------- Johns Manville Corporation, Region 5 (Continued) monitored to ensure that no asbestos reaches the surface. To prevent public access to the site, a fence and warning signs were posted. A 6-foot layer of limestone *rip rap" was imbedded in the interior slopes of the ponds that remain in active use to prevent wind and water erosion. To further guarantee the success of the cleanup efforts, EPA will monitor ground and surface water for 30 years and will continue air monitoring for 15 years. All cleanup activities outlined in this remedy were completed in May 1990. EPA used Superfund enforcement authority to compel Manville to cooperate in cleaning up the site. With the assistance of the Department of Justice, EPA exacted penalties exceeding $200,000 from Manville for violating terms of its negotiated settlement. During the course of the cleanup, additional asbestos-contaminated areas were discovered. The cleanup plan was expanded to include two extra wastewater ponds, a beach area, a roadway, an old marina, and an off-loading railroad station. These areas were promptly addressed, and cleanup was completed in August 1991. 378 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET LaSalle Electric Utilities, Region 5 LaSalle, Illinois Status: The remediation at the LaSalle Electric Utilities site was complete as of December 8, 1993. The site is currently vacant, with a fence and warning signs to restrict access. Results and Benefits: Securing the site, containing contaminated soil through capping, excavating and incinerating the polychlorinated biphenyl (PCB) wastes, and completing the offsite soil cleanup have reduced the potential for exposure to hazardous materials on the surface. Ground-water cleanup is complete. Background: From the late 1940s to 1978, the 10-acre LaSalle Electric Utilities (LEU) site was used to manufacture capacitors containing PCBs. Operations ceased in 1981, and the site now is abandoned. The company reportedly used waste oil to control dust in the parking lot and off site until 1969. Several hundred drums of PCB wastes, many of which were leaking, were found stored in a wooden shed. A tank truck containing PCB-contaminated wastes was found near a storm sewer system and surface water tributary to the Illinois River. An above ground storage tank discovered on site contained 940 gallons of trichloroethyiene (TCE). Additionally, PCB-contaminated soil was stockpiled on site. PCBs have been found on the shoulder of the road that passes in front of a school and a recreational park. Approximately 190 people reside within 1/8 mile of the site; 3,400 people live within a mile of the site, and approximately 21,000 people live within 3 miles of the site. Actions: Remedial actions consisted of two phases. Phase one of the remediation included excavation of contaminated residential offsite soils; incineration of contaminated soils with a mobile, onsite, thermal destruction unit; and industrial cleaning of all structures where excavation occurred. During Phase I, 23,258.46 cubic yards of PCB contaminated soil and debris were treated to a concentration of less than 2 ppm of PCBs. The second phase included excavating onsite soil, high pressure flushing and mechanically cleaning contaminated sewer lines, excavating contaminated sediments from the unnamed creek downstream of the storm sewer discharge, incinerating the contaminated soil and sediment, demolishing and disposing of the contaminated buildings, and constructing a ground-water collection and treatment system. 379 ------- Page Intentionally Blank 380 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Laskin /Poplar Oil Company, Region 5 Jefferson, Ohio Status: All remediation construction activities were completed as of September 15, 1993. Ground- water levels and surface water monitoring have been initiated. Five-year reviews will be conducted to ensure the site conditions remain protective of human health and the environment. The site is currently a closed, disposal vault, and a security fence limits site access. Results and Benefits: The selected remedy eliminates current and future risks to human health and the environment. The surface has been made safe from exposure to contaminants. Future surface water and ground-water contamination have been prevented. A fence around the site will protect the public from direct contact with contaminants and prevent disturbance of the multi-layer cap. Background: The 9-acre Laskin/Poplar Oil Co. site is a greenhouse and waste oil recovery operation that opened during the late 1890s. By the 1950s, the operation had installed oil-fired boilers to heat the greenhouses. In the 1960s, storage tanks and pits were installed to store waste oil. In all, the site contained 2 drained ponds, a boiler house, 4 oil storage pits, an underground oil storage tank, 32 above ground oil storage tanks, a retention pond, a freshwater pond, a greenhouse complex, and other miscellaneous buildings and sheds. In 1977, EPA discovered polychlorinated biphenyl (PCS) contamination in the waste oil at the site. In 1981, an EPA investigation detected PCBs in the ground water and soils. Actions: In 1981 and 1982, EPA performed the following emergency actions: 2 drainage ponds were drained and regraded; surface water runoff was diverted to prevent flooding; 302,000 gallons of waste oil were removed and sent to an offsite incinerator; 430,000 gallons of contaminated surface water were treated and discharged offsite; and 205,000 gallons of sludge were solidified onsite. Remediation activities at the site included: (1) constructing a fence around the entire site; (2) draining the freshwater pond and discharging it to a nearby creek; (3) removing asbestos from the boiler house; (4) demolishing and disposing/ incinerating/ decontaminating the greenhouses, sheds, the boiler house stack, the boiler house structural components, and all the equipment contained within; (5) constructing support facilities; (6) disposing of piping associated with the tanks and pits to an onsite location under the final remedy cap; (7) treating all wastewaters, contaminated surface water runoff, decontamination water, and incinerator scrubber water; (8) disposing onsite of incinerator ash meeting delisting and land ban criteria; (9) dismantling, decontaminating, and offsite recycling of all steel tanks; (10) constructing a ground-water diversion trench; (11) grading the site in preparation for the final remedy cap; and (12) constructing the final 381 ------- Laskin/Poplar Oil Company, Region 5 (Continued) remedy cap. Potentially dioxin-contaminated waste, various oils and sludges, and the concrete and structural components from the pits were also incinerated onsite. 382 ------- Su UND SITE COMPLETED NPL SITE FACT SHEET LeHillier/Mankato Site, Region 5 Mankato, Minnesota Status: The remedial construction activities were completed in June 1989. Ground-water monitoring is ongoing at the LeHillier/Mankato site. Results and Benefits: The immediate action of providing LeHillier residents with an alternate water supply has significantly reduced the threat of exposure from contaminated drinking water. The pumping of contaminated ground water and treating it by using an air stripping technique also protected populations, Background: The LeHillier/Mankato Site, located just west of Mankato, covers 6,400 acres. Between 1925 and 1950, numerous natural and manmade depressions, resulting from changes in the channels of the Minnesota and Blue Earth Rivers and from sand and gravel excavations, were filled with miscellaneous rubbish. In 1981, the Minnesota Pollution Control Agency received anonymous information alleging that hazardous wastes had been disposed of in several areas. Studies confirmed contamination of the shallow sand and gravel aquifer, the primary source of drinking water for the LeHillier and Mankato area. Ground water was contaminated with trichlorethylene (TCE) and other volatile organic compounds (VOCs). Soil contained petroleum products and VOCs. Approximately 500 people reside in LeHillier. Mankato's primary water supply well is located approximaely 1/4 mile north of the contaminated area. About 29,000 people are served by Mankato's municipal water supply. The Minnesota and the Blue Earth Rivers are used for recreational activities. Actions: The remedial actions included immediate actions and a single long-term remedial phase focusing on cleanup of the entire site. EPA and the State supplied LeHillier residents with bottled water for drinking and cooking in 1984 and 1985. A new, deeper LeHillier community well and a distribution system were constructed through a U.S. Housing and Urban Development (HUD) grant and have been operational since late 1985. Based on the results of an investigation completed in 1985, the EPA selected a remedy to cleanup the site by pumping the contaminated ground water and treating it by using an air stripping technique that removes contaminants by exposure to air. The system consists of a primary plume extraction well which discharges to a packed tower air-stripper, a blocking well, and five pump-out wells. The five pump-out wells were designed to control the westward migration of clean river recharge water which would dilute water from the primary plume extraction well. These wells discharge into the COE interceptor, which discharges into the Blue Earth River. The extraction well extracts the most contaminated ground water which is treated by air stripping and discharge to the COE interceptor. The blocking well discharges directly to the Blue Earth River. The RA also included the abandonment of 33 private wells. In addition, 383 ------- LeHillier/Mankato Site, Region 5 (Continued) three cisterns were found and were subsequently cleaned and filled. The pump and treat system will be continued until 1999, 384 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Mason County Lundington, Michigan Region 5 Status: The Mason County Landfill is a "No Action with Monitoring." A 5-year review will be performed at this site due to the previous Record of Decision (ROD) that required upgrading the clay cap for the landfill. The site is not in use. Results and Benefits: Due to the removal and construction activities, the Mason County Landfill has eliminated the potential for exposure to contaminants. Background: The Mason County Landfill site comprises 10 acres of an 18-acre parcel of land and is located 3 miles south of the town of Lundington in Pere Marquette Township. The landfill was operated by Acme Disposal for Mason County from 1972 through 1978 and accepted general refuse, garbage, industrial refuse, liquids, sludges, and industrial wastes. Acme Disposal was ordered to install additional ground-water wells on the site in 1978. Mason County covered the landfill with 2 feet of clay in 1979. Afterward, the site and adjacent land eroded and may have polluted ground water and nearby Iris Creek. Two years after the landfill ceased to operate, nearby residents voiced concerns over water quality in Iris Creek. As a result, a plan was drafted by the Michigan Department of Natural Resources (MDNR) and the Mason County Department of Public Works (DPW) to control drainage, vent landfill gas, and monitor ground-water quality. The landfill is a mile east of Lake Michigan. A wetland located less than 500 feet from the landfill drains into Babbin Pond, the headwaters of Iris Creek. The area surrounding the site is primarily rural, with a population of approximately 1,100 people within a 1/2-mile radius of the site who obtain drinking water from private wells. Twelve residential wells are located within 3 miles of the site. Actions: In 1983 and 1984, Mason County covered the landfill with clay, graded the land so that it was terraced, and added vents on the top of the landfill. Long-term cleanup actions included covering the landfill with soil and clay according to Federal hazardous waste management regulations; constructing a fence around the perimeter of the site; placing deed restrictions on and near the site to prohibit the use of shallow ground water; and continuing ground-water monitoring to aid in the long-term cleanup action for the ground water and to monitor the effectiveness of the clay and soil cover. Construction of the clay/soil cap has been finished. 385 ------- Page Intentionally Blank 386 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Metal Working Shop, Region 5 Lake Ann, Michigan Status: The Metal Working Shop site has had no remedial actions. The site is still currently being used for manufacturing operations. Results and Benefits: The presence of inorganic constituents detected at the Metal Working Shop site does not pose an unacceptable risk to human health or the environment. EPA has selected a "No Action" remedy. Background: The Metal Working Shop site covers approximately 21/2 acres on a hill between Lake View and Lake Ann. From 1974 to 1977, the owner of the property finished metals in the shop using iron phosphate. Two types of rinse waters were generated in an oxidizing phase of the operation: an acidic rinse (dilute hydrochloric acid), containing iron phosphate, and a caustic rinse (sodium hydroxide). From 1975 to 1977, effluents from these rinses were mixed to neutralize them and then dumped onto the ground. According to the owner, 400 gallons per day were disposed of for 8 to 10 days a month. In 1983, Lake Ann Manufacturing took over the site. Sampling by the State detected heavy metal salts in the rinses. The ground water and soils are contaminated with volatile organic compounds (VOCs) including toluene and with the heavy metal chromium. Ground water in the area occurs at shallow depths, and wells draw from the very permeable sand and gravel drift aquifer. The area residents depend on private wells for drinking water. After adding the Metal Working Shop site to the NPL, preliminary evaluations were performed, and it was determined that the site does not pose an immediate treat to the surrounding communities or the environment while investigations leading to the selection of final cleanup remedies are taking place. Approximately 1,000 people reside within 3 miles of the site, and the nearest residence is 600 feet away. Many other lakes are within 3 miles of the site. Actions: None. 387 ------- Page Intentionally Blank 388 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Morris Arsenic Dump, Region 5 Minnesota Status: The Morris Arsenic Dump was delisted on March 7, 1986. Results and Benefits; The site poses no imminent health hazards to the public due to the direction of ground-water movement from the site and the minimal population concentration within the site area. In addition, levels of arsenic found in the soils at the site are within the range of natural levels. Background: The Morris Arsenic Dump site is located approximately 1 mile northeast of the town of Morris, In the early 1940s, approximately 1,500 pounds of arsenic-laced grasshopper bait were reportedly buried in a gravel pit near the intersection of Highways 28 and 59. The subsequent construction of the Highway 59 bypass through the general location of the burial site made the discovery of the exact location of the materials difficult. It has been presumed that the arsenic was mechanically dispersed during highway construction, because topsoil cleared from the site for roadbed preparation was later spread along the side slopes. Actions: No action was taken because the investigation in 1985 determined that the site poses no imminent health hazards to the public. Therefore, no cleanup actions were deemed necessary. 389 ------- Page Intentionally Blank 390 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET New Lyme Landfill, Region 5 New Lyme, Ohio Status: Remedial construction was completed in late 1990 when the wastewater treatment plant went on-line and began treating ground water pumped from the site. Operation and maintenance of the treatment plant is expected to last for 30 years. The former landfill has been converted to wetlands and a recreational area. Results and Benefits: The excavation of soil from the adjacent New Lyme Wildlife Area used to cap the site created a lake that is being used for wildlife and recreational purposes, including hunting, fishing, boating, and picnicking. The completed cleanup activities have protected area surface waters, wetland habitats, and biota while the water treatment plant addresses the contaminated ground water and leachate onsite. Background: Unlicensed landfill operations began at the 40- acre site in 1969 and were initially managed by two farmers. In 1971, the landfill was licensed by the State of Ohio, and operations were taken over by a licensed landfill operator. The site received various wastes and construction and demolition debris. Numerous violations of the license occurred, including open burning, improper spreading and compacting of wastes, and excavation of trenches into the shale bedrock. In 1978, the landfill was closed by the County Health Department. Wastes at the site included asbestos, coal tar resins, paint sludge, oils, corrosive liquids, acetone, volatile organic compounds (VOCs), chlorinated solvents, and laboratory chemicals. Leachate containing organics had discharged from two sides of the fill area and threatened nearby surface waters. There was also concern that the ground water might become contaminated by the leachate. Ten families live within 1/4 mile of this site. Three households are presently using ground water as their drinking water source. Lebanon Creek and a wetland known as the New Lyme Wildlife Area are nearby. Actions: During the summer of 1982, the State and EPA conducted a site investigation and noted leachate seeps. EPA conducted a preliminary assessment in January 1983, and listed the site on the National Priorities List (NPL) in September 1983. A Superfund-financed remedial investigation and feasibility study was conducted from 1983 to 1985, resulting in a September 1987 Record of Decision (ROD). The selected cleanup alternative included capping the landfill with soil excavated from the adjacent wildlife area, and extracting and treating contaminated ground water in a treatment plant built on the site. Other remedial activities included installing gas vents and a ground-water monitoring system, and fencing the site. 391 ------- Page Intentionally Blank 392 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Northern Engraving Company, Region 5 Sparta, Wisconsin Status: Construction of the remedy is complete at the Northern Engraving Company site. Ground- water monitoring will continue to ensure the long-term effectiveness of the remedies. The site is currently being used for the production of metal parts. Results and Benefits: The remedial activities at the Northern Engraving Company site have addressed surface wastes and contaminated material and have halted further ground-water impacts. These actions, along with the land and deed restrictions, have reduced potential for exposure to onsite contaminants. The Northern Engraving Company site no longer poses a threat to human health or the environment. Background: The Northern Engraving Company (NEC) owns and operates a manufacturing facility at this site. The company produces metal nameplates, dials, and decorative trim for the auto industry. Four separate areas of contamination at the NEC facility have been identified, including the sludge lagoon, seepage pit, sludge dump site, and lagoon drainage ditch. The contaminants found in these areas are from past wastewater treatment and disposal practices used at the site. Since the 1960s, wastewaters and by-products of the metal finishing process have been treated on site. An onsite wastewater treatment lagoon was installed in 1967. Rinse water from the plant was collected and treated with sodium hydroxide for precipitaion to metal hydroxide solids. The treated rinse water was discharged to the sludge lagoon to allow solids to settle. The treated lagoon effluent was discharged to the LaCrosse River by way of a storm drainage ditch. The onsite drainage ditch was contaminated with trichloroethylene (TCE) from metal finishing wastes. Ground water and sludge were contaminated with heavy metals including copper, chromium, iron, zinc, nickel, and fluoride. Between 1968 and 1976, the sludge lagoon accumulated solids from the treated wastewater. On two occasions, sludge was removed from the lagoon and landfilled in an onsite dump area. The sludge lagoon eventually was removed from service in 1980, and an onsite seepage pit was used to neutralize spent acid waste. The pit was removed from service, filled with clean material, and graded in 1981. The Northern Engraving Company Site was placed on the National Priorities List (NPL) on September, 1983. A new aboveground wastewater treatment system was installed in 1976 and modified in 1984. The nearby LaCrosse River is used for recreational activities. Actions: The remedial actions included excavation and solidification of approximately 4,400 cubic yards of sludge and soil from the sludge lagoon, drainage ditch, and sludge dump site, and installion of a cover over the lagoon to prevent further site contamination. Also, land 393 ------- Northern Engraving Company, Region 5 (Continued) development restrictions have been imposed including access and deed restrictions on the seepage pit property. The ground-water monitoring and surface water protection are managed through use of alternate concentration limits (ACLs) as ground-water performance standards. 394 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Novaco Industries, Region 5 Temperance, Michigan Status: No remedial activities were performed on the Novaco Industries site. Ground-water monitoring on the site is ongoing. The site is currently being used for manufacturing operations. Results and Benefits: The site is protective of human health and the environment across all pathways of exposure. The Record of Decision (ROD) was a No Action Remediation. Background: The 2 1/2-acre Novaco Industries site was an active tool and die manufacturing and repair facility that used chromic acid to plate auto part molds. In 1979, a tank at the site leaked an unknown quantity of acid into the ground. Soon thereafter, chromium was discovered in the site's well and in the well used by the Veterans of Foreign Wars (VFW) Post 9656. A year later, chromium was detected in a residential welL Novaco began cleanup actions a month after the spill was detected. In 1988, the Army Corps of Engineers conducted a pump test and collected ground-water samples as part of the design phase. Analysis of these samples indicated that inorganic constituents exist at the site in concentrations comparative to background levels and do not pose an unacceptable risk to human health or the environment. EPA cancelled the start of work on the original remedy but continues to monitor the ground- water. The site consists of Novaco Industries, the VFW post, and the Moyer residential property. Approximately 85 residences or businesses lie within 1/2 mile of the site. Actions: The only activity on the site is 5 years of ground- water monitoring. 395 ------- Page Intentionally Blank 396 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Nutting Truck & Caster Company, Region 5 Pairbault, Minnesota Status: Remedial construction activities at Nutting Truck & Caster Company have been completed. Ground-water pumping and treatment are ongoing. The site is presently used for office and warehouse purposes. Results and Benefits: The treatment and monitoring systems installed at Nutting Truck and Caster reduce the potential for human exposure to contaminants in the ground water. Background: The 11-acre Nutting Truck and Caster Company site was used for the production of various manufacturing tools beginning in 1981. Sludge from various manufacturing wastes were disposed of in an unlined pit from 1959 to 1979, when the Minnesota Pollution Control Agency (MPCA) issued a notice of noncompliance to the company. In response to this notice, Nutting excavated the pit, backfilled it with clean fill, and paved over the area. MPCA required that the company investigate the soil and ground water in the area. Monitoring wells were installed, and trichloroethylene (TCE) contamination was discovered in onsite monitoring wells that were screened in the upper aquifer. The ground water was contaminated with various volatile organic compounds (VOCs). Cadmium was also detected in the ground water directly under the disposal pit. In 1984, the manufacturing operations were moved to another location. The property presently is unused. The population of the City of Fairbault is approximately 16,500. The city is served by a municipal water system. Actions: The remedial actions consisted of establishing a shallow ground-water pumpout system to remove contaminants from ground water beneath the Nutting site, and a long-term monitoring well network was designed to evaluate the effectiveness of the pumpout system. 397 ------- Page Intentionally Blank 398 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Oak Grove Sanitary Landfill, Region 5 Oak Grove Township, Minnesota Status: Remediation construction activities have been completed at the Oak Grove Sanitary Landfill. A fence has been installed around the perimeter of the landfill. Ongoing activities are borrow area and rip rap restoration, seeding, road construction, fence maintenance, repair of erosion areas, completion of monitoring wells, and removal of all equipment, debris, and construction materials from site. The site is currently a closed landfill. Results and Benefits: The final cover system for the landfill will prevent or minimize ground-water contamination and risks associated with exposure to the contaminated materials. The deeper aquifer, which does not pose a risk to human health, will continue to be used as the regional potable water supply. The fence that was installed around the perimeter of the landfill will protect against any possible human exposure. Background: The 104-acre Oak Grove Sanitary Landfill site was operated as an open dump until 1971, when the Minnesota Pollution Control Agency (MPCA) issued a permit to the owner for a sanitary landfill. In 1976, operations were taken over by Northwest Disposal Inc., until closure in 1984. Approximately 2.5 million cubic yards of wastes including garbage, various sludges and acids, pesticide manufacturing waste, paint, cutting oils, cleaning solvents, and inks were disposed of at the landfill. The Minnesota Department of Health sampled nine nearby residential wells in 1984. Samples from three of the nine wells indicated the presence of several volatile organic compounds (VOCs) and metals. Subsequent resampling did not detect these compounds. In 1985, lime sludge was used as a cover for part of the landfill. Approximately 330 people live within a mile of the site, and 9,800 live within 4 miles. The majority of these residents depend on water from wells. A creek flows through the site and is adjacent to a wetland, discharging to the Rum River, 2 miles from the site. Actions: Remedial actions for the Oak Grove Sanitary Landfill included the installation of a fence around the perimeter of the landfill and the installation, operation, and maintenance of a ground-water, surface water, and sediment monitoring program. Other actions included installation of a multilayer cover and installation, operation, and maintenance of an ambient air monitoring program around the perimeter of the landfill. 399 ------- Page Intentionally Blank 4OO ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Old Mill, Region 5 Rock Creek, Ohio Status: The construction activities at the Old Mill site have been completed. The ground-water extraction and treatment system will be operated for 10 years. The site is currently vacant. Results and Benefits: As a result of the removal, cleanup, backfilling, and seeding performed at the site, the Old Mill no longer poses a threat to human health and the environment. Potential risks to human health from exposure to contaminants in ground water that is used as a source of drinking water have been reduced. Background: The Old Mill site consists of two parcels of land, the 3-acre Henfield Property and the 10-acre Kraus property. The Henfield Property included four dilapidated wood buildings and four concrete silos, which were removed as part of the site cleanup. This property became contaminated when drummed waste and potting soil additives were improperly stored. The Kraus Property is partially covered with piles of railroad ballast and had one empty abandoned bulk liquid tank. Wastes from the Henfield property were stored on the Kraus property with the owner's permission. In 1979, EPA and Ohio EPA found approximately 1,200 drums of toxic waste, including solvents, oils, resins, and polychlorinated biphenyis (PCBs), stored on both properties. The drums leaked, causing contamination of soil and ground water. Volatile organic compounds (VOCs) were contaminating the ground water underneath the Henfield property and the Kraus Property. VOCs and heavy metals including lead were found to be contaminating the soils near the silos on the Henfield Property and in the drum storage area of the Kraus property. The Old Mill site was put on the National Priorities List (NPL) on September 8, 1983. Approximately 100 homes are within a 1/4-mile radius of the site. An estimated 1,400 people are living within 3 miles of the site. Actions: Initally, removal activities took place at the Old Mill site. Drum removal began in November 1981 and was completed by October 1982. During the second removal activity, approximately 2 inches (80 cubic yards) of soil from the drum storage areas on the Henfield property were removed. Finally, a 6-foot chain- link fence was installed around a portion of the Henfield property to minimize the potential for direct contact with the remaining soil contaminants. When the contaminated soil was removed, the fence was removed. The treatment for the site included removal and offsite disposal of 12,100 cubic yards of contaminated soil; ground-water extraction and treatment; and aquifer use restrictions. Also residences affected by the contaminated ground water were connected to the public water supply. Onsite excavation of contaminated soil included excavating to the clay layer plus 3 additional 4O1 ------- Old Mill, Region 5 (Continued) inches on portions of the site. Following the remedial activities, five dilapidated wooden removal of contaminated soil and debris, the site buildings and four concrete silos located on the was backfilled with uncontaminated select Henfield property were demolished, and the borrow, regraded to ensure proper drainage, and debris shipped offsite. seeded to prevent soil erosion. During the 402 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Petersen Sand & Gravel, Region 5 Lake County, Illinois Status: The Lake County Forest Preserve District (LCFPD) has revised a Master Plan for the use of this site as a recreational lake. At present, mining operations are occurring but will end within a year, and plans for turning the area into a recreational lake are underway. As a result of remedial actions, no institutional controls exist for this site, and the site has been deleted from the National Priorities List (NPL). Results and Benefits: Buried 55-gallon drums of paint and solvent waste once caused the Petersen Sand & Gravel (PSG) site to be listed on the NPL. Now, through the careful coordination of the LCFPD, State environmental protection departments, and a local mining operation, this 160-acre former mining pit will be the site of a recreational lake with boating, trails, and an environmental discovery center. Early in 1992, the LCFPD began reworking a previously drawn-up Master Plan for the reuse of the PSG site. An Advisory Board, made up of both public and private sector business professionals, has been meeting to discuss the logistics and studies needed to successfully establish this lake. Background: PSG is a 20-acre mining site and a former disposal area located north of Libertyville, Illinois. The site is part of a tract of land owned since 1979 by the LCFPD. PSG is bordered by the Des Plaines River to the west, forest preserve land and residences to the east, and agricultural land and small business to the north and south. The site consisted of three disposal areas including a 3- to 4-acre landfilled area reportedly containing construction debris, trees, tires; an area that contained 400 to 500 55-gallon drums of paint and solvent wastes; and an area that contained approximately 500 drums of solvents and 1,000 paint cans. The entire site is approximately 20 feet below the elevation of the Des Plaines River due to mining operations that are still continuing. Raymond Petersen purchased the property in 1952, which included a 30-acre parcel east and a 20-acre parcel west of the river, and began the sand and gravel operations at the site later that year. Between 1955 and 1958, unknown refuse was disposed of in the 4-acre landfill. Actions: In 1971, the Illinois Environmental Protection Agency (IEPA) investigated reports of illegal dumping and subsequently ordered immediate closure of the site. In 1973, the Illinois Pollution Control Board ordered complete waste removal and covering of the refuse. Additional reports cited that numerous drums were not removed. These wastes, consisting of 55-gallon drums of paint and solvent waste were removed in 1977. An inspection conducted in 1980 detected no additional buried drums. A local grading company took over the mining operations in 1983 and discovered additional buried drums of solvents and paint cans. These containers were removed from the area that year, along with contaminated soil. In 1984, the site was placed 4O3 ------- Petersen Sand & Gravel, Region 5 (Continued) on the NPL. Because a lake will be constructed onsite, surface water and sediment monitoring will take place before and after the lake is in place. 4O4 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Poer Farm, Region 5 Knightstown, Indiana Status: The Poer Farm site was delisted from the National Priority List (NPL) on February 11, 1991. The site was fenced, and signs to warn the public of contaminants were posted. The site cleanup was completed in July 1983 which was before the site was placed on the NPL in September 1983. The site is currently vacant. Results and Benefits: The removal and disposal of hazardous waste and contaminated soils from the Poer Farm site have eliminated the threat to human health and the surrounding environment. Background: Poer Farm is a 5-acre site located on a small hill between two streams and along East County Road about 3 miles north of Wilkinson. The site is an abandoned tract of land with a house and barn that have collapsed and have been vandalized. The surrounding area is open farmland that supports crops of soybeans and corn. The site consists of three separate areas where Norman Poer and Michael Coieman received and stored about 275 drums of solvents and paint resins from 1973 until 1983. The owners planned to blend these materials into low-quality paint for bridges and barns. They abandoned the project and left the 55-gallon drums on the site. EPA inspected the site and found that the drums were leaking, and vegetation surrounding the area was damaged. EPA analyzed the drums and soils underneath them and found volatile organic compounds (VOCs) and heavy metals. The soils on site contained VOCs such as toluene, xylene, and ethyl benzene and heavy metals such as cadmium, arsenic, and lead. Agricultural lands completely surround the Poer Farm site, and the nearest residence is approximately 650 feet to the north. Approximately 500 people live 3 miles north of the site in Wilkinson, and approximately 2,300 people live 5 miles away in Knightstown. Actions: In 1983, all wastes and 6 to 8 inches of soils from the drum storage area on site were removed. All solid and liquid wastes from the drums were properly landfill disposed. The well on site was sampled, and results showed that the levels of arsenic, cadmium, and lead were at or below the State and Federal standards for drinking water. Studies determined that no further action was needed at the site. 405 ------- Page Intentionally Blank 406 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Republic Steel Corporation Quarry, Region 5 Elyria, Ohio Status: All planned cleanup activities have been completed, and contaminated soils at the site have been removed. Five-year reviews will be conducted to determine the human health and environmental impacts of elevated levels of carcinogenic polycyclic aromatic hydrocarbons (PAHs), metals, and volatile organic compounds (VOCs) at depths of 30 to 60 feet in the sediment. The site remains fenced and unused. Results and Benefits: The selected remedy has reduced the concentration of contaminants in the soils, quarry fish, and the drainage ditch to levels that do not pose risks to human health and will allow unrestricted use of the facility. Soil cleanup levels have been achieved. Ground-water and surface water contamination has been prevented. The results of the 5-Year Review, however, will determine the human health effects from contaminants at greater depths in the quarry sediment Background: The fenced 11-acre Republic Steel Corporation Quarry site is located between the West River Road and the West Branch of the Black River. Sandstone was mined from the quarry as a building material from the 1800s through 1950. Republic Steel manufactured tubular steel from 1950 to 1984. The LTV Corporation took over operation of the facility in 1984. The quarry was used as a repository for plant wastewaters from 1950 to 1976. The wastewater consisted mostly of spent pickle liquor, sulfuric acid used to remove impurities that were produced during the hot steel rolling process. These impurities consisted mostly of mill scale oxides. Approximately 200,000 gallons of pickle liquor per year were pumped through an aboveground pipe to a drainage ditch that ran directly to the quarry until 1969, when the pickle liquor was disposed of offsite. The company continued to discharge other plant wastewaters through 1976. A remedial investigation (RI) was conducted from May 1986 to March 1988. The RI indicated that the soil contamination caused by Republic's disposal practices was limited to the quarry sediments, the pickle liquor drainage ditch, and several soil locations around the quarry's edge. Soil and sediment contamination included PAHs, VOCs, and heavy metals. Ground-water and surface water contamination was limited to heavy metal pollutants, including barium, beryllium, manganese, and iron. Actions: Remediation activities at the site were conducted in two phases. Phase I consisted of ground-water monitoring and the completion of a fish survey and bioassay. Phase II consisted of the excavation and removal of 130 cubic yards of sediments and soils. No systems requiring operation and maintenance have been deemed necessary. 407 ------- Page Intentionally Blank 408 ------- SUPERFUND SITE COMPLETED NFL SITE FACT SHEET Schmalz Dump, Region 5 Harrison, Wisconsin Status: Remediation construction activities have been completed at Schmalz Dump site. Ground-water monitoring is ongoing. The present property owner intends to convert the property into a residential development. A fence around the perimeter of the site has been installed to restrict access. Results and Benefits: Samples taken after remediation confirmed that polychlorinated biphenyl (PCB) levels were no longer posing a risk above EPA's target risk levels. Appropriate actions have been taken to ensure that the site remains protective of human health and the environment. Sofl and surface water remediation goals have been achieved. Background: Schmalz Dump site is located on the north shore of Lake Winnebago in the Town of Harrison, Wisconsin. Harrison is located approximately 10 miles south of Appieton, 2 miles east of Menasha, in the east central section of Wisconsin, in Calumet County. In 1968, solid waste, car bodies, stone, trees, pulp chips, mash, fly ash from Menasha Utility, and demolition debris from Allis-Chalmers Corporation were hauled to the site. In 1979, onsite soil sampling in the Allis-Chalmers debris area revealed PCB contamination as high as 3,100 ppm. The remedial investigation (RI) detected lead and chromium in soil samples at concentrations of 1,940 ppm and 964 ppm, respectively. Elevated concentrations of lead were also found in sediment samples. The site was placed onto the National Priorities List (NPL) on September 21, 1984. Approximately 1/2 acre of wetland is located on site. About 60 residences and businesses are located within 1,000 feet of the property, and the site is about 500 feet from Lake Winnebago, a source of public water supply. Actions: The remedial action for the cleanup of PCBs was completed in two phases: the first phase consisted of excavating and disposing of the contaminated material, phase two addressed the treatment of contaminated water from the pond, dewatered sediments, and other wastewater generated from site cleanup procedures. Approximately 3,500 cubic yards of PCB-contaminated debris-laden soil and sediment were removed from the site grounds and on-site pond. The remedial action for the cleanup of lead and chromium consisted of the installation of a low permeability, compacted earth cap over approximately 7 acres of lead and chromium contaminated soils; and the implementation of a ground-water monitoring program that included five new monitoring wells. Residences surrounding the site have been connected to the Menasha Water System, although some have retained wells for auxiliary uses. The City of Appieton, with a population of 60,000, has its drinking water intake approximately 1,200 feet from the shore of Lake Winnebago. 409 ------- Page Intentionally Blank 41O ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Seymour Recycling Corporation, Region 5 Seymour, Indiana Status: Remediation construction activities have been completed at the Seymour Superfund Site. The vapor extraction system and ground-water extraction and pump and treat system remain in place. The site is currently inactive, with potential for industrial purposes. Results and Benefits: As of September 1993, sampling results have shown a consistent decline in the levels of organics such as benzene and chloroethane as the plume migrates downgradient before reaching the two extraction wells. Initial volatile readings from the the vapor extraction system were as high as 100,000 ppm, but have declined to levels of approximately 500 ppm in July of 1993. Background: The 14-acre Seymour Recycling Corporation site consists of two parts: a 12-acre area surrounded by a berm and fence to confine rainwater and prevent access to the site, and a 2-acre area located directly northeast of the larger area. From 1970 to 1980, the site operated as a processing center for waste chemicals. Wastes were accumulated onsite in drums, bulk storage tanks, and tank trucks. By 1980, approximately 98 storage tanks and 50,000 drums were onsite. The majority of the drums were rusted and punctured, some were missing lids, and a large number leaked. The leaks caused contaminants to cover a widespread area, toxic vapors to be released from the site, and onsite fires. Surface drums and tanks and their contents were removed in 1981 and 1982. Contaminated soils continue to pollute the aquifers. The shallow aquifer is highly contaminated with various hazardous chemicals including volatile organic compounds (VOCs). Contaminants found in the ground-water were VOCs, chloroform, phenols, and heavy metals including arsenic, barium, iron, and manganese. Soil contaminants are high levels of VOCs and heavy metals including beryllium. The facility closed in 1980. The site was listed on the final National Priorities List (NPL) on September 9, 1983. Approximately 100 homes are located within 1 mile of the site. Most private water supply wells for these residences have been disconnected and replaced with water service from the City of Seymour. Contaminated runoff from the site entered nearby drainage ditches that flow into the White River and then to the Ohio River. Releases of contaminants from the site resulted in fish kills. Actions: Remedial actions for the Seymour Site consisted of construction and operation of a ground-water pump and treatment system; the design, construction, and operation of a vapor extraction system; the design and construction of a multimedia site cap with onsite contamination, buildings, and debris buried beneath the cap; and the design and implementation of bioremediation activities at the site. Bioremediation included adding nutrients to the soil to help break down the contaminants biologically. The two closest ground-water extraction wells were located so that natural biodegradation could take place as the contaminants flowed from the cap area to the extraction system. 411 ------- Page Intentionally Blank 412 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Tri-State Plating, Region 5 Columbus, Indiana Status: As a. result of remedial actions, the source of the contamination has been removed, and a pump and treat system will continue to operate until the ground water at the site meets drinking water standards. The 1/2-acre site is currently vacant, but is expected to be for sale within a year. Results and Benefits: Chromium levels are falling, and in a few years ground-water cleanup is expected to be completed. The City of Columbus' well field has been protected from chromium contamination. Background: The Tri-State Plating site is an abandoned metal plating facility located in a residential and small business neighborhood of Columbus, Indiana. The company had frequently discharged production wastes, exceeded the specified limits, illegally dumped wastes on the ground surface at the site, and failed to install a waste treatment system. Tri-State also had one severe spiE that interrupted the biological treatment system at the City of Columbus Wastewater Treatment Facility. The Bartholomew County Health Department first discovered soil contaminated with cyanide and heavy metals in January 1983. In May 1984, the city blocked off the sewer from Tri-State Plating and shut off the company's water supply. Tri-State discontinued operation in 1984, and the property's owner filed for bankruptcy. If actions had not been taken to clean up the contamination, the nearby Haw Creek and White River might have become contaminated. Additionally, a backup drinking water well owned by the city was within 1/2 mile of the site. The facility is located in a heavily populated area, but residents are served by a public water system. EPA was concerned that contaminants might migrate into an aquifer supplying city water. Actions: An EPA remedial investigation revealed elevated levels of cyanide, chromium, copper, and cadmium on building surfaces and in surface soils and ground water at the site. To prevent access, a fence was installed around the site. Initial remedial actions began in 1987. Over 27 barrels of inorganic materials were removed from the 1/2-acre site, and the main building was decontaminated and demolished. A 4-foot trench was found at the site where Tri-State had been dumping waste. Surface soil at the trench was excavated and replaced with clean soil. Contaminated ground water at the site was extracted and treated using the existing onsite extraction well. 413 ------- Page Intentionally Blank 414 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Twin Cities Air Force Reserve Base, Region 5 Minneapolis-Si. Paul, Minnesota Status: The remedial construction activities for Twin Cities Air Force Reserve Base have been completed. Ground-water monitoring will be ongoing until September 1995. Results and Benefits: Capping the landfill has eliminated the potential for contaminants to reach the soil and groundwater. Contamination has been eliminated through the natural attenuation of ground water. Both have eliminated the risk to human health or the environment at the Twin Cities Air Force Reserve Base site. Background: Since 1944, the 280-acre Twin Cities Air Force Reserve Base was used for operations that resulted in the storage and disposal of hazardous substances at the Small Arms Range Landfill The Small Arms Range Landfill, the main base landfill from 1963 to 1972, is located along the Minnesota River and covers approximately 3 acres. In addition to general base refuse, quantities of paint sludge, paint filters, and leaded-fuel sludge were disposed of at the site. Monitoring wells showed contamination with low levels of mercury, chromium, lead, and zinc in the ground water. Soil and sludge were contaminated with paint by-products and petrochemicals. The Twin Cities Air Force Reserve Base was placed on the National Priorities List (NPL) on July 21, 1987. The site is within the 100-year flood plain of the Minnesota River and was periodically flooded, resulting in the release of chromium, lead, and zinc to the river. The landfill was closed with capping under appropriate regulations. Approximately 64,700 people living in the Minneapolis-St. Paul metropolitan area depend on public and private wells for drinking water within a 3-mile area of the landfill. Actions: The remedial actvities included access restrictions; construction and maintenance of a chain-link fence; and installation of one monitoring well to replace a damaged well. Also, deed restrictions will be implemented at such time as the property is transferred. The remedy for ground-water contamination is natural attenuation. There is long-term monitoring of ground and surface water on the site to ensure compliance with the levels estabEshed in the Record of Decision (ROD). 415 ------- Page Intentionally Blank 416 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Union Scrap Iron & Metal Company, Region 5 Minneapolis, Minnesota Status: Construction has been completed at the Union Scrap Iron & Metal Company site. The site has been designated for unrestricted use, and no further monitoring is necessary. The site now is an empty lot, covered with dirt. Results and Benefits: The removal activities, including excavation and disposal of contaminated soil, have eliminated the potential for exposure to contaminated materials at the Union Scrap Iron & Metal Company site. All cleanup goals for surface contamination have been met, and no significant contamination remains on the site, making the surroundings safe for nearby residents and the environment. Background: Union Scrap Iron & Metal Company sorted and crushed lead battery fragments on this 1 /4-acre site from 1973 to 1980. Lead was separated and sold for recycling. The plastic and rubber fragments remaining, which also contained lead, accumulated in piles. Approximately 30,000 tons of these fragments were on the site. According to the State, airborne lead levels adjacent to the site were significantly high. There was also a potential for ground water and surface water contamination. The soil and sludge were contaminated with heavy metals including lead, arsenic, cadmium, nickel, and copper, as well as polychlorinated biphenyls (PCBs). Approximately 3,700 people live within a 1/2- mile radius of the site, and 17,100 live within 1 mile. Three schools are within 1 mile of the site. Actions: The entire surface of this 1/4-acre site was removed by EPA Emergency Response personnel in 1988, and was either recycled or disposed of in a landfill. The material removed included contaminated soil, battery materials, and a concrete pad. Clean fill was then hauled in to bring the site surface back up to grade. 417 ------- Page Intentionally Blank 418 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET U.S. Aviex, Region 5 Niles, Michigan Status: Remediation construction activities have been completed at the U.S. Aviex site. Long-term ground-water pump and treat as well as monitoring is on-going. The site is fenced and inactive, but has the potential for residential use. Results and Benefits: The selected remedy has removed the pollutants from the soil and will remove pollutants from ground water so that the site will not contain any contaminants above health-based levels. The response actions reduced the drinking water threat by connecting residential wells to the public water supply. Background: U.S. Aviex manufactured nonlubricating automotive fluids at its 2-acre Huntty Road Plant from the early 1960s until 1978. Activities at the plant included the repackaging of bulk products and the formulation of new products from bulk ingredients. Releases of hazardous substances, which occurred during this period of operation and during a fire that destroyed the plant, impacted the drinking water aquifer in the area. Contaminants were detected in down gradient residential wells as far as 1/2- mile southwest of the plant. The contaminants found in the ground water and soil are volatile organic compounds (VOCs) including benzene, PCE, trichloroethylene (TCE), toluene, and xylenes. Under agreements with the State of Michigan, U.S. Aviex installed onsite monitoring wells; supplied bottled water to residents with contaminated wells; installed new residential wells in a lower, uncontaminated portion of the aquifer, where possible; and installed a ground- water extraction and treatment system to contain and treat the plume of contamination that developed following the releases. Numerous single-family homes are located near the plant. All residences have their own water supply wells. The closest agricultural activity is located about 1/2 mile southeast of the site. An airport, a sewage treatment lagoon, and various light industries are approximately 1 mile to the west of the site. Three schools are located about 2 miles from the site. Actions: Remedial actions consisted of pumping and treating onsite and offsite contaminated ground water by air stripping. Additional construction included installation of monitoring wells and piezometer clusters and demolition of existing onsite structures, tank removal, site grading, and fencing of the site perimeter. 419 ------- Page Intentionally Blank 42O ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Velsicol Chemical Corporation, Region 5 St. Louis, Michigan Status: The site is being closely monitored to ensure the effectiveness of the cleanup remedial activities while EPA conducts studies into the extent of deep aquifer contamination. The site is currently posted and fenced to restrict use. Results and Benefits: By capping the site, installing a fence, posting warning signs, and building a system to prevent the movement of contaminated water off the site, the potential for direct exposure to hazardous materials at the site has been significantly reduced. Six deep monitoring wells and one shallow well continue to be monitored to ensure the long-term effectiveness of the remedies. Background: The Velsicol Chemical Corporation site consists of 50 acres in St. Louis, Michigan. The site is located adjacent to the Pine River, which is used for fishing, boating, swimming, and other recreational purposes. A fish kill occurred in 1979, after red leachate was observed oozing into the river from the site. Two injection disposal wells, a dredge pond, a lagoon, a radioactive waste disposal area, and one or more drum storage areas were located on the site. Plant effluent and poor housekeeping practices resulted in contamination of the Pine River and soils and ground water at the site. Six municipal wells located east and southeast of the site supply drinking water for the area. The nearest well is approximately 1,500 feet away. Onsite ground water was contaminated with chloride, sulfate, phenol, and carbon tetrachloride. Onsite soil samples revealed contamination with phenol and lead. Actions: The remedy consisted of demolition, salvage, and removal of building materials and scrap. A 2- foot-thick slurry wall ground-water containment system and a clay cap were also constructed. A ground-water collection system with deep well injection was put into operation, and a long- term maintenance and monitoring program was implemented. 421 ------- Page Intentionally Blank 422 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Washington County Landfill, Region 5 Lake Elmo, Minnesota Status: Currently, the Washington County Landfill site operates as a closed waste management unit. All components of the remedial action have been fully implemented. Therefore, the preliminary site completion requirements for this site have been met. EPA will continue to evaluate the effectiveness of the remedy at each 5-year review and make adjustments, as necessary. Results and Benefits: The ground-water gradient control and treatment system and the alternate water supply system have eliminated unacceptable threats to human health and the environment associated with exposure to contaminated ground water at the site. Background: The Washington County Landfill site is located with in the city limits of Lake Elmo in Washington County, Minnesota. Lake Elmo is approximately 9 miles northeast of Saint Paul. The site occupies a 110-acre parcel, and the landfill covers 40 acres of the site. The area adjacent to the site is predominantly residential with a small amount of farming. Residences are directly adjacent to the site on the north, west, and south. Approximately 3,000 people reside within a 3-mile radius of the site. The site was extensively mined for sand and gravel prior to its use as a sanitary landfill during the years 1969 to 1975. The landfill was jointly operated by Washington and Ramsey Counties. It accepted approximately 2.6-million cubic yards of solid waste, which was mostly residential waste. After operations were discontinued in 1975, a clean soil cap was placed on the landfill. In 1981, ground-water monitoring indicated the presence of elevated concentrations of volatile organic compounds (VOCs) and some heavy metals in onsite monitoring wells and offsite residential wells. The site was added to the National Priorities List (NPL) on September 21, 1984. Actions: In 1983 and 1984, alternate drinking water supplies were provided to affected residences. In 1983, Washington and Ramsey Counties installed a pump and treat system to reduce any potential ground-water contamination from the landfill. On October 24, 1984, a Consent Order was signed between the two counties and the State for the counties to perform cleanup activities. Cleanup remedies selected by EPA included: installing and operating a ground-water gradient control system at the site, providing safe drinking water supplies for affected residences, monitoring the landfill and the effectiveness of the ground-water gradient control system, appropriate landfill security and safety procedures, and implementing a closure plan. The ground-water gradient control system is in operation, and monitoring of the ground water 423 ------- Washington County Landfill, Region 5 (Continued) wiE continue until the State determines that the in September 1992. A 5-year review was ground water has been cleaned. prepared by the State and approved by EPA in January 1994, The review provides for a In September 1990, a remedy was selected to number of improvements to the existing remedy, supply drinking water to residents of 10 homes including the addition of an air stripper system in Lake Elmo for which the Minnesota for treating ground water and an upgraded cap Department of Health (MDH) issued advisories for the site. As these improvements are made, against using existing well water for drinking or the remedy will then continue to be evaluated cooking. The remedy provided for these 10 for effectiveness and adjustments wiE be made, homes, to be connected to the City of Oakdale as necessary. EPA wiU conduct its next 5-year public water system. This work was completed review of the remedy in 1999. 424 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Wedzeb Enterprises, Inc., Region 5 Lebanon, Indiana Status: The findings of the final remedial investigation (RI) report showed that the previous removal actions were adequate to protect human health and the environment, and that no unacceptable risk remained at the site for ground water, soils, and warehouse surfaces. Therefore, the June 30, 1989 Record of Decision (ROD) called for no further action for the ground water, soils, and warehouse surfaces at the Wedzeb Enterprises site. However, as a precautionary measure against potential future releases from the contaminated sewer line to the Lebanon treatment plant, the ROD called for remediation of the contaminated sewer line. Results and Benefits: All cleanup activities were completed in 1990, and no hazardous substances were left on site. The site no longer poses a threat to human health or the environment. Background: This 3/4-acre site is located in Lebanon, about 30 miles northwest of Indianapolis. Approximately 11,455 people live within a 3- mile radius of the site, and about 300 homes are located within 500 feet of the site. Approximately 300 private wells and two municipal wells are in the vicinity of the site. The site was owned by a succession of businesses prior to the late 1970s, when Wedzeb purchased it. Operating practices at Wedzeb consisted of buying used electrical equipment for resale and storing it on site in two warehouses. Various types of electrical equipment including electrical capacitors and transformers containing polychlorinated biphenyls (PCBs) were stored on site. A fire that completely destroyed one warehouse on the eastern side occurred at the site in 1981. According to inventory records, this warehouse had contained 77 tons of electrical capacitors, some of which exploded during the fire. The water used to put out the fire mixed with contaminants from the capacitors and subsequently dripped onto the ground and flowed into a sanitary sewer line. PCBs may have been released into the environment as a result of the fire, and contaminants may have been washed to nearby ground surfaces as the fire was extinguished. Actions: Because of the potential health threat to nearby residents caused by harmful chemicals, the Indiana State Board of Health and EPA collected samples in 1981 of onsite soil and debris, as well as soot, wastewater, and sanitary sewer sediment from areas located near the site. These sampling activities showed concentrations of PCBs in sediment from the sanitary sewage treatment plant, as well as traces of dioxins and furans in the sediment and other soil samples from locations on and near the site. Wedzeb installed a fence and a windbreak around the site in 1985 to minimize migration of dust off site. EPA removed 50 boxes containing contaminated onsite surface soils and debris from the area surrounding the 425 ------- Wedzeb Enterprises, Inc., Region 5 (Continued) warehouse on the eastern part of the site in 1987. The contaminated soils and debris were shipped to an EPA-approved disposal facility. The contaminated soil subsequently was replaced with clean filL More than 250 drums of 3-pound capacitors were shipped off site for incineration. The work plan for the long-term cleanup of the sewers and soils was completed and approved by EPA, and cleanup work began on the site in 1990. EPA selected the following methods to address site contamination: cleaning the sewer lines with hydraulic jets and vacuum pumping to remove contaminants, inspection of the sewer pipe, disposal or incineration of contaminated sediments, filtering sewer sediments and discharging clean water to the publicly owned treatment works (POTWJ, and removal and disposal of the wastes generated by the investigation into the nature and extent of contamination at the site. Cleanup activities were completed in late 1990. The ROD and subsequent Explanation of Significant Differences (BSD) for the Wedzeb Enterprises site required removal of the contaminated sewer sediments, waste generated during the RI, and soil from the site. No monitoring requirements were established in the ROD or BSD. 426 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Wheeler Pit, Region 5 La Prairie Township, Wisconsin Status: This National Priorities List (NPL) site is fenced and inactive. Deed restrictions are in place to prohibit the installation of ground-water wells and future development of the site. As part of the remedial activities, ground water will be monitored for at least 30 years. Results and Benefits: The remedial actions at this rural site have removed the threat of direct contact with the contamination, and reduced the threat of contaminants reaching the ground water. Water wells in the area are used primarily for irrigation. Background: This site occupies 3.82 acres, 2 miles east of the City of Janesville, in La PraMe Township, Wisconsin. The area surrounding the site is primarily used for agriculture and sand and gravel mining. A small asphalt plant operates on property adjacent to the site. The nearest municipal water supply well is the City of Janesville well that is located approximately 1 mile northeast of the site. Private wells are located within 1,000 feet of the site. From 1960 through 1974, the potentially responsible party (PRP) used the site for disposal of paint spray booth sludges, clarifier sludges, and powerhouse coal ashes from its automobile assembly plant in Janesville, The disposal site was reported to be approximately 400 feet long, 250 feet wide, and 8 feet deep. An estimated 22.3-million gallons of organic and inorganic sludges were disposed of at the site. The waste/ fill area covers approximately 3.4 acres and ranges from 0 to 23 feet in thickness. At its deepest point, the waste is approximately 10 feet above the water table. The estimated volume of waste is 60,600 cubic yards. During the fall of 1974 and the summer of 1975, the disposal area was covered according to State guidelines. In response to complaints concerning potential ground-water quality impacts related to waste disposal practices at the site, sampling was performed by the State and PRPs. Elevated levels of trichloroethylene (TCE), chromium, zinc, and barium were noted in the samples in April 1981. As a result of these findings, the site was placed on the NPL in September 1984. In 1987, the PRPs entered tato an agreement with EPA to perform studies to determine the extent of contamination, as well as alternatives for addressing the contamination. Actions: The site was cleaned up as an accelerated capping project. The design called for all waste to be excavated and consolidated under one multi-layered cap. The approximately 6-foot- thick covering prevents a barrier from direct contact and minimizes water infiltration. New monitoring wells have been constructed onsite. Two groups of two or more wells are upgradient, and four groups of two or more wells are downgradient. Private weEs near the site are also monitored. 427 ------- Wheeler Pit, Region 5 (Continued) A permanent 6-foot-high chain-link security fence was erected around the site, and a new access road was constructed. 428 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Whitehall Municipal Wells, Region 5 Whitehall, Michigan Status: The Whitehall Municipal Wells site is an active, public facility that produces potable drinking water for about 3,000 people. Institutional controls have been implemented and studies have determined that the site does not pose a significant threat to human health or the environment. No further action is required at this site. However, the Michigan Department of Public Health (MDPH) will continue its routine sampling of the city water supply and will investigate other areas of ground-water contamination to ensure continued protection of nearby residents and the environment, Results and Benefits: An investigation and risk assessment in February 1990 indicated no public health risk was involved with the site. The closing of Production Well #3 (PW3) eliminated the potential for exposure to hazardous materials at the site. Therefore, no further cleanup action was recommended. Background: The City of Whitehall is located in the western part of the lower peninsula of Michigan on the shore of Lake Michigan. The Whitehall Municipal Wells site is located in the northeastern portion of Whitehall, in Funnel Field, north of Colby Street, and south of the ravine and backwaters of the White River. About 3,000 people live in the City of Whitehall, and about 20 residences still rety on their private wells for potable water. In 1980, perchloroethylene (PCE) was detected in the city's water supply. It was determined that PW3 was the source of the problem. Chemical analysis of soil samples taken from the site of the nearby laundromat/dry cleaner on May 18, 1981, revealed 1.0 mg/kg of PCE. In early 1981, MDPH recommended that the city use PW3 only on an emergency basis and that it be eventually replaced. The city used PW3 on an "as needed" basis at reduced pumpage rates until October 1988. PW3 was permanently abandoned as of September 1, 1989. The PCE leakage problems associated with the laundromat/dry cleaner facility have since been corrected. Since 1982, PW3 has shown no contamination and surrounding monitoring wells have shown only minimal levels of contamination. Sampling of residential wells in 1982 indicated contamination of those wells with volatile organic chemicals (VOCs). Contaminants that have been found in the ground water include PCE, trichloroethylene fTCE), and chloroform. Further investigation indicated that the source of the residential well and ground-water contamination was Shellcast, Inc. and White Lake Landfill, Inc. In 1985, EPA issued a Consent Order to Shellcast, Inc. and White Lake Landfill, Inc., requiring that they provide a permanent potable water supply to residents whose water supplies may be threatened by hazardous substances in the ground water. 429 ------- Whitehall Municipal Wells, Region 5 (Continued) Actions: In September 1984, the Whitehall Municipal Wells site was added to the National Priorities List (NPL). The site investigation (SI) followup was conducted from May 1986 to April 1988 to determine the nature and extent of contamination at the site. A geophysical investigation was performed at the site on May 26 and 27, 1987. A soil gas survey was performed on May 25 and 27, 1987, to determine the presence of VOCs at detectable concentrations. Also, during the SI follow-up, five cluster wells were installed in addition to the monitoring wells put in by the city and the SI contractor. Subsequently, ground-water and soil samples were collected. Although extensive ground-water investigation was performed, no discrete source of contamination was found. In addition, no contamination was found in PW3. Monitoring wells were re-sampled during the remedial investigation (RI) that was conducted from March 1988 to May 1989. Again, no discrete source of contamination was found. The baseline risk assessment of the site, prepared in February 1990, concluded that the site was not of public health concern under current conditions because of the absence of human exposure to significant levels of hazardous substances. No environmental or human health exposure pathways were identified since the closure of PW3. On September 29,1989, a Record of Decision (ROD) was signed that approved the "no further action" remedy. This site was deleted from the NPL on February 11,1991. MDPH continues to conduct routine sampling of the city water supply to ensure continued protection of nearby residents. 430 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Whlttaker Corporation, Region 5 Minneapolis, Minnesota Status: Ground water and soils were contaminated with heavy metals and volatile organic chemicals (VOCs), Drums and contaminated soil were excavated and processed onsite. Approximately 280 cubic yards of hazardous materials were shipped to a permitted RCRA facility. All construction activities have been completed at this site. The ground-water pump and treat system began operation on May 9, 1985, and was still in operation as of April 7,1992, because the response action levels had not yet been achieved. The site is currently used by an excavation company for offices, parking, and heavy equipment storage. Results and Benefits: Removal and treatment actions have greatly reduced the potential for exposure to contaminated materials at the site while further cleanup and monitoring activities continue. Background: The Whittaker Corporation site is located within an industrial area of Minneapolis. The Mississippi River is approximately 1,200 feet to the west of the site and four industrial and four residential wells are nearby. This site is a closed, 7.5-acre, former industrial facility. Site activities have included repackaging of antifreeze and oil, and manufacturing of resins and industrial coatings. Raw materials were stored in 21 underground storage tanks (USTs), in 28 above ground tanks, in drums, and inside the plant. Waste materials included tank bottoms, paint wastes, and cleaning fluids. Once generated, these wastes were reused in the manufacturing process; incinerated onsite; disposed of in a low, swampy area on the site; and were occasionally spilled. Hazardous materials were discovered hi 1978 during an excavation for a parking tot. Ground water and soil were found to be contaminated with heavy metals including cadmium and lead, as well as VOCs including xylene, ethylbenzene, toluene, and benzene. Actions: The site was placed on the National Priorities List (NPL) on September 21,1984. Soil sampling and monitoring well installation were included in the preliminary investigation. The remedial investigation began in January 1985 under the direction of the Minnesota Pollution Control Agency (MPCA). The investigation included the removal of USTs, installation of additional monitoring wells, soil borings, and trench excavation. MPCA issued a Request For Response Action (RFRA) addressing source areas and ground water on April 23, 1985; it was amended on November 26, 1985. The site cleanup (response action) included the following activities: 600 drums were excavated and disposed of offsite at a permitted RCRA facility; visibly contaminated soil was excavated and disposed of at a permitted RCRA facility; resins and soils were separated, and the resins were disposed of at a permitted RCRA facility; 25 drums of recovered solvents were incinerated offsite; soils were 431 ------- Whittaker Corporation, Region 5 (Continued) excavated, thermally processed, and landfarmed onsite; and a ground-water pump and treat system was installed. The pump and treat system was turned off in July 1994. Sampling of seven monitoring wells was conducted in September 1994; an additional sampling round was planned for December 1994. 432 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Windom Dump, Region 5 Windom, Minnesota Status: This landfill site was closed in 1974. Following investigations initiated in 1982, construction of the landfill cap began in June 1989 and was completed in August 1989, All planned cleanup activities have been completed except for pumping and treating of the ground water, which will continue until cleanup levels are met. As of January 1995, the pump and treat system was still in operation. The site is an 11-acre closed landfill. Results and Benefits: Numerous cleanup activities (e.g., installation of the landfill cap) have greatly reduced the potential for exposure to hazardous substances at the site. Pumping and treating of the ground water continue to lower contamination levels in the affected aquifer. Background: Land near the site is comprised of residences and is used for farming and industrial activities. An elementary school is two blocks west of the site. In early 1991, the population of Windom was approximately 4,500. Prior to the 1930s, the 11.4-acre Windom Dump was quarried for sand and gravel, almost to the level of the water table. From the 1930s until 1971, the site was used to burn municipal and industrial wastes. From 1971 to 1974, municipal wastes and some industrial wastes were placed in a fUl area along the pit; however, burning of paint sludges continued during this time. The site was closed in 1974; however, the City of Windom continued to place demolition asphalt and concrete over the fill area. Reports of waste disposal practices by local citizens and the proximity of the site to the City of Windom municipal well field prompted the City and the Minnesota Pollution Control Agency (MPCA) to evaluate contamination potential of the site. A fence was constructed around the site, and six monitoring wells were installed (by the City of Windom) in November 1982, as part of a preliminary assessment. In 1985, the Minnesota Department of Health (MDH) sampled the city's municipal and residential wells. Residential wells near the site were clean. Analysis of monitoring wells consistently detected volatile organic contamination downgradient of the landfill. Chemical analysis of soils collected below the refuse indicated the presence of metals at concentrations slightly above background, at nonhazardous levels. Di- n-butylphthalate was the only EPA organic priority pollutant detected in the soil. Actions: The site was listed on the National Priorities List (NPL) in April 1986. On June 24, 1986, the MPCA issued a request for response action to the City of Windom and the Toro Company (the Potentially Responsible Parties (PRPs) for the site), which required the City and Toro to conduct a remedial investigation (RI) and feasibility study (FS) and to prepare a remedial action plan. The RI was initiated in May 1987, 433 ------- Windom Dump, Region 5 (Continued) and the final report was submitted to the MPCA in October 1987. Also in 1987, an additional 12 monitoring wells were installed. The RI determined that the only significantly affected medium at the site was the ground water of the glacial drift aquifer. The FS, submitted to MPCA in September 1988, identified the following objectives for the site: protection of the municipal water supply; minimization of ieachate generated at the site; and control of contaminant migration. The PRPs performed the following activities: graded the site to control erosion; covered the site with compacted clay and other materials that are impermeable to water; provided a drainage layer; and installed a landfill cover to prevent water and wind erosion. Intervention limits for the contaminants of concern were also established. These intervention limits were exceeded in 1989. A ground-water recovery well was installed along the western property boundary in September 1989, and an aquifer test along with a pilot treatment test was completed in October 1989. The final pump and treatment system began operation on October 31, 1990. Annual system evaluations and municipal water supply monitoring are required. Pumping and treating of the ground water will continue until cleanup levels are met. Otherwise, all planned cleanup activities have been completed. EPA anticipates that in March 1995, MPCA will complete a 5-year review of the remedial actions (RA) conducted at the site. The 5-year review should show that the remedies implemented as part of the RA remain protective of human health and the environment. It should also indicate that the pump and treat system should continue until cleanup goals are met. This site will be scheduled for review again in March 1999. 434 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Dayton Tire and Rubber Company Site, Region ! * Dayton, Ohio Status: The removal actions at this site have been completed, and EPA has addressed the threats posed by the polychlorinated biphenyl (PCB)- contaminated surfaces and soils, and the loose asbestos throughout the facility. The buildings onsite were then demolished, and the residue has been disposed of by the tity. Grass has been planted at the area. Responsibility for the site has been assumed by the city, no further action by EPA is anticipated. Results and Benefits: The PCB- and asbestos-contaminated main building was cleaned up and released by EPA for reuse; hazardous materials were removed from the site or stabilized to prevent their offsite release. Wolf Creek, at the southern boundary of the site, has fully recovered. Following EPA's removal actions, the City of Dayton has continued cleanup of this site, which is no longer the focus of community concern. Background: In April 1987, an oil spill in Wolf Creek was traced to a drain pipe that was connected to a pump station in an abandoned 37-acre tire manufacturing plant 2 miles west of downtown Dayton. Further investigation by the Ohio Environmental Protection Agency (OEPA) revealed that PCB-contaminated transformer and electrical switch oil had been dumped onto the floors, roof, and soil surrounding the buildings by a salvage firm. Heavy rains had apparently washed the oil into Wolf Creek. Subsequent investigations revealed that the building had also been vandalized. PCB- containing transformer oil had been tracked over several thousand square feet of floor, and vandals had removed asbestos wrap from thousands of feet of the building's 8-inch and 12-inch steam piping. This had allowed huge quantities of friable asbestos to become airborne (and therefore a breathing hazard) while the PCBs could migrate during rainy periods into Wolf Creek from the unsecured property. Hazardous wastes totaling over 4,000 gallons were also discovered in drums and tanks onsite. This site is bounded by and drains into Wolf Creek to the south, and a wooded field to the west. Residences are within 200 feet to the north, and an operating tire processing plant is to the east. Actions: The day after the PCB spill was reported, EPA mobilized the Technical Assistance Team and Emergency Response contractors to secure the site and determine the full extent of the emergency. The first 6 weeks of the removal included extracting oil from the transformers and the empty electrical equipment within the facility and removing contaminated soil and debris from the building and from Wolf Creek. Subsequently, the asbestos was encapsulated and removed, PCB-contaminated sediment was excavated from Wolf Creek, and PCB- contaminated tracks from vandals and subsequent investigators were cleaned from 435 ------- Dayton Tire and Rubber Company Site, Region 5 (Continued) 22,400 square feet of floor. After EPA concluded its activities, the city continued cleanup work, including demolition of the remaining structure on the site. The area is now fallow and unsecured. 436 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Industrial Fuels and Asphalt Site, Region 5 Hammond, Lake County, Indiana Status: Emergency and time-critical removal actions have been initiated at this site, which is the 2,000th action under the Super fund Removal Program. Response activities are continuing and include removal of the finable asbestos from the ground, treatment of the caustic sulfite material, and removal of all onsite structures such as buildings and tanks. The owner has indicated that, when response measures to construct a wetlands area are completed, ownership of the site will be transferred to the City of Hammond. Results and Benefits: Because the site is located in a low-lying swampy area, significant damage to local ecosystems was likely. In addition, the proximity of the site to other businesses, the evidence of past vandalism and trespassing, and the lack of site security made this abandoned site a threat to local populations. Large quantities of friable asbestos, a carcinogen, were removed from the site to protect persons or terrestrial animals that could possibly come in contact with it. As a result, nearby wetlands and wetlands habitats have been protected. Various migratory bird species use these wetlands, including the green heron. When remedial actions are complete, EPA and the State plan to transform this former asphalt plant into an environmental asset, a wetlands demonstration area. The purpose of this project would be to demonstrate how Superfund can remediate hazardous waste situations in addition to benefiting the surrounding wetlands ecosystems. Background: The Industrial Fuels and Asphalt site is an inactive oil refinery/asphalt processing plant located in Hammond, Indiana. The 40-acre site is located in an industrial area surrounded by other oil refineries and tank farms. There are no homes or schools within 1/4 mile of the facility. Bordered by historic wetlands, industrial properly on the west and south, and a street and an avenue on the east and north, the entire site is surrounded by a chain-link fence that has been subject to repeated damage by trespassers and vandals. The plant has been in existence since the mid-1950s. It operated from 1977 to 1983, was leased to another company from 1985 to 1990, and is currently inactive and unoccupied. In 1991, reports concerning several petroleum leaks at the site prompted investigations by the City of Hammond. Several onsite areas were covered with oil, and evidence showed that oil was spreading to onsite and adjacent wetlands, as well as to other offsite areas. According to a memorandum from environmental contractors to the Department of the Interior, contaminant problems of concern included oil discharges, leaking PCB capacitors, asbestos piles, improper storage of drummed hazardous substances, an abandoned tank farm with unknown types and quantities of wastes, and improperly disposed hazardous substances. In an initial investigation, the State discovered several structures onsite, including a large warehouse containing 52 drums of assorted reagents and micro-biological compounds, an abandoned laboratory, approximately 45 aboveground 437 ------- Industrial Fuels and Asphalt Site, Region 5 (Continued) storage tanks, and an unknown number of underground tanks. In a subsequent investigation, the State also discovered a pile of insulation containing asbestos. Several onsite releases, such as PCBs and other spills, resulted from vandalism. During a geophysical survey, investigators found that approximately 50,000 square yards (3/4 of the site) are covered by a green slag-like material (green sulfite), determined to be caustic (pH > 12) and to contain high levels of corrosive sulfite. The sulfite-containing material extended 1/2 mile north and 1/4 mile west of the site boundaries. Elevated sulfite levels existed in the ground water, resulting from the elevated levels in the soils. It was thought that this material might also have been reactive, resulting in evolution of hydrogen sulfide (H2S), a poisonous gas. Actions: Removal activities at the site directly addressed actual or possible releases of hazardous substances, contaminants, or pollutants that posed a threat to human and animal populations, and to the environment. Since discovery of the contamination in June 1991, a number of removal activities have taken place. EPA, the Technical Assistance Team (TAT), and the Emergency Response Cleanup Services (ERCS) contractor removed and incinerated all laboratory chemicals, neutralized all phosphoric and hydrochloric acids and other corrosives, and removed the friable asbestos. Three hundred drums and various other containers were retrieved from the site and staged in an onsite building, and one manufacturer voluntarily removed four drums of methyl cellosolve. The State began cleanup of oil- and asphalt- contaminated areas by demolishing numerous tanks, consolidating material remaining in tanks, and scraping up and stockpiling oil- contaminated soil. EPA intends to negotiate with potentially responsible parties for continuing time-critical removal measures to reduce the reactive and corrosive sulfite levels at the site. The additional response actions would include excavating, screening, and crushing contaminated sludges and soils, and then oxidizing the sulfites by combining them with calcium hypochlorite bleach to obtain a cleanup goal of less than 500 ppm of reactive sulfites. The treated material will be replaced so that further treatment of the material can be contained using berms and lagoons, and the treated material will be mixed with organic peat and urea to neutralize the pH and to lower residual chlorine. Torrential rains during the summer of 1993 resulted in the release of crude oil from two large floating-top tanks that were in poor condition. Most of the affected areas onsite contained wetlands habitats supporting a variety of wildlife including sandpipers, ducks, geese, turtles, toads, and crayfish. There was concern that flooded streets adjacent to the site might provide migration pathways for the oil offsite. 438 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Kelly Koett Site, Region 5 Cincinnati, Ohio Status: As a result of an emergency response cleanup at this site, the radiation-contaminated building has been demolished, and the areas of contamination removed. The entire site cleanup was completed in February 1992 through the Superfund Removal program. Results and Benefits: Rapid building deterioration combined with the close proximity of residential areas posed the potential for human exposure to Radium-226. This site, however, no longer poses a threat to public health or the environment. In October 1992, the property was purchased, and local officials indicate that reuse is likely. Background: In 1951, the Kelly Koett X-Ray Corporation experienced the rupture of a capsule containing 44.8 millicuries of radium sulfate from a calibration instrument. The material was released into the air, and the contamination spread throughout two buildings onsite through indoor ventilation. Cleanups were performed in the intervening years, but radiation surveys demonstrated that these actions were unsuccessful and that contamination persisted. In May 1988, the EPA, Cincinnati Department of Health, and local fire department responded to a report of falling debris at the 1/4-acre site. Debris from the outside facade were found to be free of radiation, but due to the increasing deterioration of the building and repeated unauthorized entries on the site, the City of Cincinnati requested that EPA initiate immediate cleanup. The site is adjacent to a residential area. Actions: Cleanup activities began in July 1988. Phase I of the cleanup included bagging loose debris, disposing of Pharmaceuticals, conducting radiological surveys of all surfaces in both the front and rear buildings, and removing various floor and wall surfaces. Damaged asbestos pipe insulation was removed from the basement of the front building. The radium-contaminated debris were removed, and 712 cubic yards were delivered to an EPA-approved radioactive landfill. Phase II of the cleanup included removing more highly contaminated surfaces of the rear building and removing the remaining asbestos as required to demolish the buildings. The buildings were demolished, and the debris disposed of in a landfill. The foundations were backfilled with clean material, and the site was seeded to prevent erosion. 439 ------- Page Intentionally Blank 44O ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Nagel Residence Site, Region 5 Wayne County, Michigan Status: The removal action at this site began on September 21, 1989, and was completed on November 14, 1989. No further remedial activities are planned. Results and Benefits: Removal of silver and mercury contamination in a residential area removed the threat to neighboring residents. The site has been attractively grassed; however, there is only a garage on the lot and the house has not been rebuilt. The building and land are presently assessed at less than $10,000. Background: The site was a three-bedroom home located on a small lot in a densely populated residential neighborhood. When four individuals from the same family were hospitalized with respiratory problems, police investigated. The problems were traced to a clandestine smelting operation in the basement run by one of the family members. The raw materials were "off-spec" dental amalgam taken without permission from a local supplier by the homeowner's son-in-law. The recovered silver was being sold to a local precious metal dealer. All occupants of the home subsequently died of complications due to mercury poisoning. Actions: Within a month of being informed of the problem, EPA (1) verified that elevated mercury levels were inside the house; (2) met with appropriate local authorities to develop an acceptable and workable removal strategy, (3) went door-to-door in the neighborhood with information; (4) obtained the proper access authority; (5) retrieved and decontaminated certain personal items for the surviving family members; and (6) began work to ensure the site would not release mercury vapor to the outside atmosphere and adjacent homes. EPA and its Technical Assessment Team (TAT) found highly elevated levels of mercury inside the house, especially in the basement area where smelting had been conducted. The TAT did not record any elevated levels outside the house, however. The house was sealed, and a filtration system was installed to place the house under negative pressure to prevent any release of mercury vapor, should a breach occur in the structure. To reduce vapor levels while the cleanup progressed, the agent "HgX" was first sprayed on the interior, combining with free mercury to form a salt, which could then be disposed of as a hazardous material Some walls were further encapsulated with latex paint. Material was removed from the interior of the home and transported to an EPA-approved landfill. The structure was demolished, and the basement floor and foundation were excavated and placed in an approved landfill. The lot was then backfilled to a final grade of ground surface and sodded. Repairs were made to sidewalks and the driveway damaged during demolition. A total of 390 cubic yards of contaminated debris were landfilled. 441 ------- Page Intentionally Blank 442 ------- ------- Page Intentionally Blank ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Bayou Sorrel Site, Region 6 Bayou Sorrel, Louisiana Status: Currently, the Bayou Sorrel site is managed as a closed landfill. All cleanup actions were completed in 1990. EPA will continue to monitor the site during the 30-year operation and maintenance period to ensure that the site is safe and no longer poses a threat to public health or the environment. Results and Benefits: Numerous cleanup activities have reduced the potential for exposure to hazardous substances at the site. For example, in late 1989, a fence was installed at the entrance to the site to restrict access, and in 1990, a clay cap was installed to prevent infiltration, surface water exposure, and direct contact. A slurry wall was installed to contain contaminated ground water. The selected remedy inhibits the migration of more than 1 million cubic feet of wastes by providing a barrier in all directions. Background: The site is located in Iberville Parish, approximately 20 miles southwest of Baton Rouge, Louisiana. It is on the East Atchafalya Basin Floodway Protection Levee, adjacent to the Upper Grand River and Pat Bayou. The site has a marshy-type environment and is prone to flooding and poor drainage. Fifty acres of the 265-acre site have been used for waste disposal. The waste disposal areas include: a spent lime cell, a crushed drum cell, four covered liquid waste ponds, and a land farm. The remaining acres are overgrown with brush and trees. The site lies in a rural area; only three homes are within 2 miles of the site. The nearest well is 1/2 mile away, but is used only for washing. Bayou Sorrel gets its drinking water from the City of Plaquemine. The population changes seasonally due to local fishing camps. Early in 1977, Environmental Purification Advancement, Inc. (EPAI) began accepting wastes at the site from several petrochemical industries. According to company records, the majority of wastes disposed at the site included: sulfide-containing wastes from hydrocarbon processing and exploration activity; process wastes from pesticide/herbicide manufacture; and spent wash solutions from boiler cleaning and process equipment cleaning contractors. A sister firm, Clean Land Air Water, Inc. (CLAW) operated an injection well approximately 6 miles south of the site. EPAI operations included landfarming, open liquid impoundments, drum burial, and landfilling of chemically fixated wastes. The fixation process is unknown but may have included lime, cement, and native soils. EPAI and CLAW were two separate operations; however, it is believed that wastes from the injection well were diverted to EPAI when process problems at the well caused a bottleneck. In the summer of 1978, a truck driver died at the site as a result of inhaling hydrogen sulfide gas created when liquid wastes were dumped into the receiving pond. State and Federal regulatory officials inspected the site following this incident and found unknown materials in large, open 44.1 ------- Bayou Sorrel Site, Region 6 (Continued) unlicensed ponds. When a State District Court ordered the site closed in September 1978, approximately 36,400 cubic yards of wastes remained onsite, and it was estimated that 1 million cubic yards of soil was contaminated. Actions: In 1979, all exposed disposal areas were dewatered, filed, and covered with soil. Investigations in 1981 and 1982 showed evidence of surface contamination, although ground-water data were inconclusive. Based on the information collected during these investigations, the site was placed on the National Priorities List (NPL) on December 20, 1982. EPA signed a 1987 Consent Decree with the Potentially Responsible Parties (PRPs) to conduct cleanup activities at the site. The Record of Decision (ROD) was signed on November 14, 1986; the engineering design for the site cleanup was approved in 1989. The ROD and •subsequent remedial design required the following site remedies: regrading the site to control runoff, limit cap erosion, limit surface water ponding, and divert stormwater from waste areas; capping former disposal areas with RCRA top-soil/gee-membrane/clay caps; installing a sand/geofabric pore water drainage layer above the wastes and below the cap; including a venting system in the cap to reduce buildup of methane and other gases beneath the cap; consolidating all miscellaneous wastes outside currently capped areas under the new caps for grading and fill purposes or disposing of wastes at an offsite facility. Also required are installing a 30-foot deep slurry wall around the former landfill area and constructing a shallow slurry wall around the former pond 4 area; fencing all capped areas to restrict access to disposal areas; constructing gravel access roads around fenced areas to allow continued recreational use of adjacent lands and Borrow Lake while diverting traffic around and away from the disposal areas; and installing a ground- water monitoring system. These activities were completed in 1990, and the 30-year operation and maintenance period has begun. 446 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Bio-Ecology Systems, Inc., Region 6 Grand Prairie, Texas Status: Rem'ediation construction activities were completed in August 1988. Ground-water sampling and leachate pumping and sampling are still being conducted. The site is currently unoccupied, and access is restricted through the use of a fence and warning signs. Results and Benefits: The selected remedy has removed the pollutants from the soil so that the site will not contain any contaminants above acceptable health- based levels. Surface water contamination through flooding and ground-water contamination has been prevented. Health risks resulting from direct contact or ingestion of soil have been eliminated. Background: The Bio-Ecology Systems, Inc. site consists of approximately 11 acres in an industrial area. The site is bordered by the tributaries of Old Mountain Creek and lies within the floodplain of the creek. The site is also 1 mile from Mountain Creek Lake. From 1972 to 1978, the site was licensed as a Class I industrial solid waste management facility by the State of Texas. The facility incinerated or used chemical or biological processes to treat the wastes prior to their being landfilled. The site contained tanks of mixed oils, solvents, and ketones and buried sludge containing chromium, cyanide, and heavy metals. After numerous permit violations and court orders, Bio-Ecology Systems, Inc., went bankrupt on June 13, 1978. The site was partially cleaned up in 1978 and was partially closed for further cleanup in December 1979. The site was placed on the National Priorities List {NPL) in September 1983. Actions: Remedial actions for the Bio-Ecology Sytems, Inc. site consisted of: raising the elevation of the site above the 100-year floodplain; construction of an onsite disposal cell; construction of a final cover and liner and a leachate collection and removal system; waste stabilization and placement of the waste in the onsite cell; construction of a fence with warning signs; and installation of a ground- water monitoring system. Construction was completed by August 1988. Approximately 85,000 cubic yards of wastes and soils were stabilized and placed in the disposal cell. Leachate pumping and sampling, conducted from 1989 to 1993, showed a decrease in leachate volume. Ground-water monitoring and sampling from 1989 to 1993 displayed contaminant results below levels of concern. Leachate pumping will continue until the system is pumped dry. Ground-water monitoring will continue throughout the operation and maintenance period. 447 ------- Page Intentionally Blank 448 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Cecil Lindsey Site, Region 6 Jackson County, Arkansas Status: All remedial actions have been completed at this site. EPA, in conjunction with the State, determined that the surface and subsurface contamination at the site was cleaned to levels that are safe to people and the environment. EPA deleted the site from the National Priorities List (NPL) in 1989. The site is currently an inactive agricultural area, located in the Village Creek floodplain. Results and Benefits: In 1988, 1 year after an emergency removal action, sampling showed that contamination levels in the ground water have decreased, and the threat to an adjacent wetland area has been eliminated. Background: From the early 1970s to 1980, the 5-acre Cecil Lindsey site was used as a salvage operation, collecting machinery, cars, and scrap metals. Some municipal and industrial wastes reportedly were disposed of on the property, although the operators had no permit to accept them. Drums that previously held pesticides and oils containing heavy metals were disposed of onsite. About 20 homes housing 50 residents are located within 1 mile of the site. The site is adjacent to the Village Creek wetlands and forested bottomland in an agricultural area. Portions of the site, which He within the flood plain of Village Creek, are often flooded. Heavy metals and volatile organic compounds (VOCs) were found in ground water underlying the site. Heavy metals including arsenic, cadmium, and copper were found in soil throughout the site, and VOCs were found in the southern portion of the site. Actions: In 1987, EPA quickly removed the drums to eliminate further contamination, placed ground- water and access restrictions on the site, and installed monitoring wells. ------- Page Intentionally Blank 450 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Cimarron Mining Corp., Region 6 Canizozo, New Mexico Status: All construction activities have been completed at the Cimarron Mining site. EPA and the State have determined that the contractors have constructed the remedy in accordance with the plans and specifications. The only activities to be performed at the site are monitoring and operation of the ground-water pump and treat system and operation and maintenance activities. This is an abandoned mill site. Results and Benefits: Constructing a fence to limit access to the site has reduced the potential for nearby residents to come into direct contact with contaminants on the site. The ground-water pump and discharge to the publicly owned treatment works (POTW) remedy is designed to, over time, reduce the level of cyanide contamination to acceptable levels and mitigate the potential for migration of contamination from the shallow aquifer to the deeper drinking zone. Background: Approximately 1,500 people live within a 2-mile radius of the Cimarron site; about 1,000 people obtain drinking water from 29 municipal wells within 3 miles of the site. The nearest municipal well is about 2 miles from the Cimarron area and 1/2 mile from the Sierra Blanca area. Wells are also used to irrigate food crops. This 10-acre site is located approximately 1/4- mile east of Carrizozo, Lincoln County, New Mexico, and approximately 100 miles south- southeast of Albuquerque. In 1990, the Sierra Blanca property, located approximately 3/4-mile south of the Cimarron Mining site, was incorporated into cleanup actions at the Cimarron Mining site. Covering approximately 10 acres, it operated as a precious metals recovery mill. The process resulted in a lead- contaminated slurry, which was disposed of in open pits. From 1979 to 1982, the Cimarron site operated as a metal recovery mill using a solution of cyanide salt and metal stripper. Before 1979, gold was extracted using cyanide. Both processes generated a liquid waste containing cyanide and heavy metals. Site activities resulted in the unpermitted discharge of contaminated liquids and the stockpiling of contaminated liquids, tailings, and other waste sediment. The facility was operated without the required permits, and the State cited the company for environmental violations in 1982. Cimarron filed for bankruptcy in 1983, and the following year an inspection revealed two cyanide solution tanks, a discharge pit, an impoundment, an uncovered pile of mine tailings, and a drum storage area. State inspections in the early 1980s revealed the presence of cyanide and elevated metals in the shallow ground water, soil, and mill tailings. Actions: In 1987, the site was fenced, and warning signs were posted to alert the nearby community of contaminated site conditions. In 1990, EPA completed an investigation into the nature and extent of contamination at the metal recovery 451 ------- Cimarron Mining Corp., Region 6 (Continued) site. This study defined the contamination and recommended various cleanup alternatives. The selected remedy involves pumping of shallow ground water, with discharge to a local wastewater treatment facility. 452 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Compass Industries, Region 6 Tulsa, Oklahoma Status: The Compass Industries (Avery Drive) site is an abandoned 30-acre landfill. All site construction activities and remediation have been completed at this site. Long-term monitoring and operation and maintenance of the site are being implemented. Results and Benefits; Risk to human health from direct exposure has been reduced by limiting site access by installing a fence with warning signs along the site perimeter. Completion of the clay cap has contained material onsite and will keep pollutants from migrating offsite via water and air. Background: This landfill site is located west of Tulsa, Oklahoma, and is near a county recreational facility. Physically, the landfill is situated on a bluff approximately 1/4 mile south and 200 feet above the Arkansas River. Runoff from precipitation, springs, and seeps flow into the Arkansas River through a network of small streams. The site is in a rural area, but is immediately west of a recreational area. The nearest residence is 1 /4 mile from the site, and the nearest drinking water well is 1/2 mile away, although it is upgradient from the site and currently is not in use. Prior to the 1950s, the site was used for limestone quarrying and oil and gas exploration. From 1972 to 1976, it operated as a major landfill for municipal and industrial wastes in the Tulsa area (although the permit issued by the Oklahoma State Department of Health (OSDH) did not allow for the disposal of industrial wastes). Unknown wastes have been dumped at the site since the mid-1950s. The limited records kept indicate that several types of hazardous waste were dumped, including toxic chemicals, metals, and carcinogenic materials. Information on the quantity and location of wastes in the landfill was also limited. Citizen complaints prompted air monitoring in the vicinity of the landfill, and during the 1970s and 1980s, air quality monitoring identified the presence of organic chemicals, but at nonhazardous levels. Actions: to September 1984, the site was listed on the National Priorities List (NPL). OSDH conducted several onsite investigations between 1984 and 1987. Samples were collected from air, water, and soil to determine if significant pollutant concentrations were present. Sampling performed in conjunction with the remedial investigation identified numerous organic and inorganic pollutants. The total volume of waste was estimated to be 620,000 cubic yards. Twelve inorganic priority pollutants and 33 organic priority pollutants were detected. The primary contaminants of concern affecting a shallow aquifer and overlying soil include inorganics (e.g., zinc, lead, copper, barium, 453 ------- Compass Industries, Region 6 (Continued) chromium) and organics (e.g., benzene, benzo(a)pyrene, dibenzo(a,h)anthracene, chlordane, and bis-2-ethylhexyl-phthalate). The feasibility study for this site was completed by OSDH in July 1987. After a 2-month comment period, the Record of Decision (ROD) was signed on September 29, 1987. EPA selected the following remedies for this site: installation of a RCRA cap; site grading to encourage runoff and prevent erosion; surface water diversion to reduce overland flows; collection and treatment of surface water before discharge into the Arkansas River; air emissions monitoring; installation of security fences and warning signs; and implementation of ground- water and air monitoring analysis programs. In mid-1988, EPA installed a fence around the site and placed warning signs around its perimeter. The construction phase began in 1989, and a multilayer RCRA cap was completed in 1990. Final seeding of the site took place in 1991. Post-remediation operation and maintenance have been implemented at this site since October 1991. Environmental and performance monitoring are conducted on the ground water, surface water, and sediment. More than 4 years of monitoring (leachate, surface water, and gas vents) have shown that the contaminants are not present at concentrations greater than the action levels. 454 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Crystal City Airport, Region 6 Crystal City, Texas Status: EPA, in consultation with the State of Texas, has determined that all appropriate response actions required to ensure the protectiveness of human health and the environment at this site have been implemented and no further response action is warranted at this time. The only activities to be performed at the site are monitoring and operation and maintenance activities. The site was proposed for deletion from the National Priorities List (NPL) on January 4, 1995. The site is still in limited use by a local airport. Results and Benefits: The remedial activities conducted at the site, including the disposal of contaminated soil and drums, have reduced the threat to nearby residents and the environment. The remedial action assured that the site could continue to be used as an airport The airport was reopened to the public following general refurbishment Background: The Crystal City Airport (CCA) site, comprising approximately 120 acres, is located in Northwest Crystal City, in Zavala County, Texas. In 1991, the population of Crystal City was 8,000. The economy of the region is dominated by agriculture and oil and gas production. The nearest residence and drinking water well are 300 feet away from the site. A municipal water supply well and two schools are within 1/4 mile of the site. A closed municipal landfill, also owned by Crystal City, is directly adjacent to the airport to the northeast. CCA began operations during World War II as a military installation. In 1949, the U.S. Government deeded the airport to Crystal City. Since then, the city has operated the facility as a municipal airport. Several private aerial pesticide application companies conducted business at the airport until 1982; all are now out of business. Upon declaring bankruptcy, these former operators abandoned various equipment and numerous deteriorated drums onsite. On April 25, 1983, the Texas Natural Resource Conservation Commission (TNRCC) investigated the site because of the potential threat to local residents of waste pesticides left at the site by these companies. Surficial soil at the site was found to be highly contaminated with pesticides. The airport was closed to the public in 1987. Actions: On October 31, 1983, as part of an immediate removal action initiated by EPA, 40 cubic yards of waste and more than 50 drums were consolidated into two temporary onsite disposal cells, mixed with lime, and capped with clay. In May 1984, in a second removal action, EPA disposed of 19 drums offsite and secured the site with a fence and posted signs. In 1988, EPA repaired the fence and reposted signs. Approximately 12,000 cubic yards of surface soil were contaminated with pesticides including: DDT, toxaphene, and arsenic. Samples of the drinking water and air did not contain any detectable contamination. The site was added to the NPL on May 20, 1986. The remedial 455 ------- Crystal City Airport, Region 6 (Continued) investigation (RI) and feasibility study (FS) were completed in June and July of 1987, respectively. The Record of Decision (ROD) was signed on September 28, 1987. The selected remedy for the site included: onsite consolidation of contaminated soil, drums, and buildings; installation of a multilayer RCRA cap to minimize the migration of contaminants by rainfall and erosion; decontamination of buildings; offsite injection well disposal of decontamination liquids; long-term (30-year) monitoring; installation of security fencing; and periodic inspections of the site with maintenance as necessary. All cleanup actions have been completed and no further action is necessary, except for monitoring and operation and maintenance activities. 456 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Dixie Oil Processors, Inc., Region 6 Harris County, Texas Status: All site construction activities and remediation have been completed. Long-term monitoring and operation and maintenance of the site will be implemented by the Dixie Oil Processors (DOP) task force, under the direction of EPA. Results and Benefits: After the contamination was removed, the entire site was regraded and vegetated to promote drainage and to minimize surface runoff. Protection of ground water has been achieved through removal of sources of contamination. Risks to human health have been minimized by imposing permanent site controls, including deed notices and restrictions, and by restricting access to the site. Background: This site consists of approximately 26.6 acres located along Dixie Farm Road, about 20 miles southeast of the City of Houston, Texas, in Harris County. DOP has had several owners since 1969. In 1978, DOP began oil recovery operations on the parcel south of Dixie Farm Road, converting liquid organic wastes such as phenolic tars and glycol cutter stock to creosotes, fuel oil extenders, and other petroleum products. DOP stores wastes onsite before disposing of or recycling them. Previous owners have operated olefin washing and copper recovery processes on the parcel north of Dixie Farm Road. Methylene chloride, 1,1,2- trichloroethane, and copper have been found in the ground-water wells in the vicinity of the six surface impoundments. The area surrounding the site is basically vacant, with a lone residential subdivision located to the north of the site. Actions: EPA issued a unilateral Administrative Order to 12 respondents in July 1991, and Phase I field activities began on March 26, 1992. Approximately 1,750 tons of contaminated soils and sludges from storage tanks were removed, stored in roll-off containers, and sent offsite for disposal. Also, concrete drainage swales were installed, the flood control ditch was widened, a concrete low flow channel was installed, and the entire site was graded to promote drainage. Approximately 250,000 gallons of liquids and sludges were removed from old process vessels and were also sent offsite for disposal. The vessels were removed and sent offsite to a smelting facility. Long-term monitoring, and operation and maintenance of the site will be implemented by the DOP task force, under the direction of EPA. ------- Page Intentionally Blank 458 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Geneva Industries/Fuhnnann Energy, Region 6 Harris County, Texas Status: EPA and the Texas Water Commission (TWC) declared all site construction activities substantially complete on July 1, 1993. The ground-water remedial action was scheduled for completion in November 1993. Current monitoring and maintenance activities are being performed under the direction of the TWC. The site is currently unoccupied, and access is restricted. Results and Benefits: Risk to human health from direct exposure has been eliminated by removal of wastes, capping the site, and by limiting site access using a chain-link fence with barbed wires along the site perimeter. Treated ground water will be discharged from the site in accordance with the limits specified in the Federal and State surface water quality regulations. The site has no potential future use other than as a closed waste management unit. Background: This site is a 13-acre abandoned petrochemical manufacturing and reprocessing plant, located at 9334 Canniff Road in Houston, Harris County, Texas. The site was used for petroleum exploration prior to 1967, and for chemical production under two owners from 1967 to 1984. The chemicals that were manufactured included biphenyl, poiychlorinated biphenyl (PCB), phenyl phenol, naphtha, and Nos. 2 and 6 fuel oils. The current owner salvaged equipment from the site until 1985. As a result of past practices at the site, extensive soil and shallow ground-water contamination occurred. Prior to removal, surface soils had PCB contamination levels as high as 12,200 parts per million (ppm). This area of Houston, adjacent to the city of South Houston, is heavily populated, and light industry is located nearby. Approximately 35,000 people live within 1 mile of the site, and the nearest residence is 50 feet away. The nearest drinking water weE is about 1/4 mile southwest of the site. Actions: A removal action was conducted by SPA during the period from October 17, 1983, to February 3, 1984, to close out three onsite lagoons, remove all drummed waste on the surface, remove all offsite soils containing greater than 50 ppm PCBs, install a cap over all onsite soils containing greater than 50 ppm PCBs, and improve drainage. The TWC issued a notice to proceed with remediation on May 23,1988, and field activities began on May 24, 1988. At the completion of the source control remedial construction in September 1989, approximately 62,290 tons (38,900 cubic yards) of contaminated material had been disposed of offsite. A cap that met or exceeded the requirements for a RCRA-type cap/cover system was constructed over the remaining onsite soils. A chain-link fence with barbed wires was constructed along the site perimeter. The ground-water remedial action was scheduled for 459 ------- Geneva Industries/Fuhrmann Energy, Region 6 (Continued) completion in November 1993, and includes a 10-year treatment phase for recovery and treatment of trichloroethylene (TCE) from the ground water. Post-remediation operation and maintenance (O&M) will be implemented at the site. General long-term ground-water monitoring and O&M will be performed under the direction of the TWC. 460 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Harris (Farley St.) Site, Region 6 Houston, Texas Status: EPA determined that the responsible party had implemented appropriate remedial response actions. The property was returned to use as part of a nonhazardous materials landfill. The site was deleted from the National Priorities List (NPL) in March 1988. Results and Benefits: Because the action completely removed the contamination source, ground water was not monitored after the removal, and institutional or operational controls were not considered necessary to ensure future integrity of the cleanup. EPA concluded that the site no longer posed threats from chemical contamination. The responsible party paid for the entire cleanup of the site. Background: The Harris (Farley Street) site, a 2-acre abandoned landfill, was leased in 1958 by a transporter to act as a disposal facility for chemical wastes. Accumulated wastes were periodically burned, leaving a charred residue. Following complaints, a thin layer of soil was placed over the disposal area in 1959. One thousand tons of tars and sludges from local chemical industries were disposed of in two trenches, each 120 by 40 feet, over the course of several years. When the property was sold in 1975, the new owner gave the land to his daughter, who then constructed a house on the abandoned disposal area. The buried waste was discovered during the construction of a pool in 1981. In 1982, the house was destroyed by fire. The soil was contaminated with volatile organic compounds (VOCs) and polycyclic aromatic hydrocarbons (PAHs). Although the soil at the site was contaminated, no contamination of the ground water was found. Actions: In 1985, an EPA Enforcement Decision Document instructed the responsible party to remove all hazardous substances and dispose of them in an offsite, privately owned landfill. From 1986 to 1988, the responsible party excavated noncontaminated soils and stockpiled them, excavated contaminated wastes and disposed of them in a federally approved landfill, and sampled the area. Measurements of total extractable organics (TEOs) were used to determine levels of soil contamination. Background level was defined as from 0 to 10 parts per million (ppm), with a detection limit of less than 2 ppm. Background levels of TEOs were present in 54 of 57 soil samples collected after the removal; levels were slightly above background in three samples. Because the action completely removed the contamination source, it was turned over to a disposal company to become part of a Class IV nonhazardous landfill, which now borders the site on two sides. A sandpit that lies to the south of the site is also scheduled to become a landfill, once the sand has been removed. 461 ------- Page Intentionally Blank 462 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Highlands Acid Pit, Region 6 Highlands, Texas Status: All site construction activities and remediation were completed at the Highlands Acid Pit site on July 15, 1987. Long-term monitoring and operation and maintenance of the site are being implemented. The site, located in a 10-year floodplain, has been fenced to restrict use. The surrounding area is used for recreational activities. Results and Benefits: Risk to human health from direct exposure has been reduced by limiting site access using fence along the site perimeter. The source control (excavation and offsite disposal of contaminated soil) has been completed, and the site is protective of human health and the environment. However, monitoring is being continued to ensure that no future threat exists at the site. Background: This site is located 16 miles east of Houston on a 6-acre peninsula in Harris County, Texas. The site is bordered on the west and south by the San Jacinto River, on the north by a wooded area, and on the east by a sand pit. The site lies within the 10-year flood plain and has subsided about 2 feet since 1964. The nearest residence is about 1/2 mile from the site. Twelve water wells also exist within a 1-mile radius of the site. The land use is primarily residential and recreational. An unknown quantity of industrial waste sludge was disposed of at the site in the 1950s. The sludge is believed to be spent sulfuric wastes from a refinery process. The upper sand aquifer has been heavily contaminated with heavy metals and volatile organic compounds (VOCs), but no private or public wells currently withdraw water from it. In September 1978 (initiated by a telephone complaint), waste sludge, sediment, and stormwater samples were collected by the Texas Natural Resource Conservation Commission (TNRCC). The stormwater samples and leachate from the waste sludge samples were found to have low pH, low concentrations of heavy metals, and high levels of chemical oxygen demand and total organic carbon. During June 1981, six soil borings were conducted; three were completed as monitoring wells. In October 1981, ground-water samples were collected, and VOCs and heavy metals were detected. EPA emergency response personnel secured the disposal site by constructing a perimeter fence to prevent illegal dumping and to protect the monitoring wells. In 1985, EPA repaired the fence and posted warning signs. Actions: The field investigation, completed in April 1983, showed extensive contamination across the site. However, offsite impacts of the contamination were extremely limited. Also, no measurable impact on surrounding surface water quality was found. Results indicated that the upper aquifer was highly contaminated with benzene and some metals. Based on the sampling results, the site was added to the National Priorities List (NPL) on September 8, 1983. 463 ------- Highlands Acid Pit, Region 6 (Continued) The remedy selected in the June 25, 1984, Record of Decision (ROD), for control of the source of contamination was: extensive excavation and offsite disposal of highly contaminated soil; backfilling, grading, seeding, and fencing of the site; and installing monitoring wells. Approximately 33,000 tons of excavated materials were disposed of at a hazardous waste disposal site. The primary contaminants of concern addressing ground water include VOCs and heavy metals. The recommended remedial action in the ground-water ROD of June 26, 1987, included a no action remedy with long-term ground- water, surface water, and sediment monitoring because the contaminants of concern were not detected at levels that constitute a human health or environmental threat. Ground-water monitoring to date has indicated that no further remedial action is needed. No health risks are anticipated, because the source control is completed. However, ground-water monitoring is being continued to ensure that no further threat exists at the site. 464 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Industrial Waste Control, Region 6 Jenny Lind, Arkansas , Status: The Industrial Waste Control (IWC) site is a closed industrial waste landfill. All site construction and remediation activities were completed at the site in 1990. Long-term monitoring and operation and maintenance of the site have been implemented. Results and Benefits: Removal of contaminated materials, installation of barriers to prevent water movement, and other cleanup actions have eliminated the threat to human health and the environment from this site. Also, ground-water monitoring and site maintenance activities will ensure that the remedy remains protective of human health and the environment. Background: This 8-acre site is a closed and covered industrial waste landfill. This site is located in a rural area, with 18 homes within 1/2 mile, and the nearest residence and well within 200 feet. The surrounding area is primarily pasture land and low density residential areas. The site is located in an abandoned coal strip mine that was used for local dumping. Landfilling operations began in the late 1960s and primarily dealt with municipal refuse and debris, and industrial trash. The site operated under a temporary permit issued by the State from November 1971 to May 1974 when it was fully permitted for the disposal of liquid wastes, solids, and sludges. The site received a variety of liquid wastes, including methylene chloride, phenols, cresylic acid, and paints. In addition, the site potentially contains as many as 9,000 buried drums. At least two earthen surface impoundments were constructed for the disposal of bulk liquids and for use as evaporation ponds. It was alleged that due to heavy rains in the area during March of 1977, the surface impoundments overflowed and contaminated a local pond and pastures north of the site resulting in a fish kill and the death of several cattle. Consequently, the site was closed, covered, and recontoured by the State in 1978. Four areas of contamination have been identified at the site. Approximately 19,500 cubic yards of contaminated soil are located in two areas. The primary contaminants of concern affecting the soils, sediments, ground water, and surface water are volatile organic compounds (VOCs), including toluene, organics, and heavy metals, including lead, arsenic, and chromium. Actions: By late 1978, EPA had begun to investigate the site, and preliminary assessments were conducted in 1980 and 1981. In December 1982, the site was added to the National Priorities List (NPL). EPA completed the remedial investigation (RI) and endangerment assessment (EA) in March 1986. The greatest threat of contamination was determined to be from the migration of ground water through the landfill with the resultant leaching of organics and heavy metals. The first feasibility study (FS) 46S ------- Industrial Waste Control, Region 6 (Continued) was completed in June 1986. Based on a hydrogeologic and waste quantification study conducted by the Potentially Responsible Parties (PRPs), EPA revised the EA and FS in April 1988. The Record of Decision (ROD) was signed on June 28, 1988. Because the site was not being used, there was no immediate risk from human contact with polluted soil or water. However, future use of the site or future migration of contaminants was of concern. No contaminants existed in usable water sources, although it was possible that buried drums would disintegrate in the ground, releasing additional wastes that could have percolated through the soil and threatened ground water. A major concern was the possibility of ground-water contamination spreading through the interconnections between the extensive underground mine workings to the north and the surface strip mine under the site. The remedies selected for this site included: categorization of solid and liquid wastes; excavation of about 3,000 liquid-filled drums for offsite disposal; excavation and onsite stabilization of about 20,000 cubic yards of soil with onsite disposal of residual matrix in an excavation pit; installation of a french drain along the south, west, and east sides of the site with a synthetic liner or other barrier, such as a slurry wall; surface water diversion using ditches and berms; extraction of ground water for offsite treatment, mixture with contaminated soil and stabilized onsite, or treatment in an onsite facility with discharge to be determined during design; multi-layer RCRA capping to cover the area bound by the french drain system and the northern site border; installation of a fence to limit site access and impose land use restrictions; and ground-water monitoring. All site cleanup activities were completed in 1990. The final inspection was completed on March 29,1991, and the project was certified complete as of that date. 466 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Midland Products, Region 6 Tell County, Arkansas Status: All construction site activities have been completed. The contaminated soils and sludges have been excavated and treated with a portable incinerator that was erected onsite. The item remaining for final site closure is the continued operation and maintenance of the pump and treatment phase of the contaminated shallow ground water, which should take 3 to 5 years to complete. The site is currently unoccupied. Results and Benefits: Contaminated soils and sludges have been excavated and treated onsite, which eliminates the potential for direct exposure to hazardous materials at the site as well as eliminating future threats to ground water and surface water. Drinking water sources have been protected. After the pump and treatment phase of the contaminated shallow ground water, the site will be re-evaluated to determine whether it is safe for unrestricted use. Background: This site consists of 38 acres located approximately 1/2 mile east of the City of Ola, Arkansas, in Yell County. Midland Products operated a wood treating facility and sawmill at this location from at least 1969 (possibly as early as 1960) to 1979. The company is now bankrupt and the site has been abandoned. The site was contaminated with pentachlorophenol, polynuclear aromatic hydrocarbons, and creosote from past activities, especially in the 3-acre area where the wood treatment facilities .and liquid waste lagoons are located. Low levels of less toxic types of dioxins and furans were also detected on the site. The ash from the soil treatment was backfilled onsite, and covered with 6 inches of clay and 4 inches of top soil. The contaminated surface water and lagoon liquids were also treated and discharged at the site. Approximately 1,500 people live within a 4-mile radius of the site, with 190 of those located in the immediate vicinity. A home adjoins the southwest corner of the site; the nearest drinking well is 400 feet west and residents within a 3-mile radius depend on private wells. The Petit Jean State Wildlife Management Area is located upriver approximately 1 mile north of the site. Actions: Based on the hazards posed by the lagoons and contaminated soils, the site was listed on the National Priorities List (NPL) on July 16, 1984. The Record of Decision (ROD) was signed on March 24,1988, and remediation began in May 1991. Currently, all site construction has been completed. The contaminated soils and sludges have been excavated and treated with a portable incinerator that was erected on site. The ground-water pump and treatment system is in place, and the only remaining site activity consists of operating and maintaining this system. The water is pumped through a carbon adsorption filter and discharged after treatment to an adjacent drainage/runoff ditch. This activity is estimated to take 3 to 5 years to complete. The recovery well system and water 467 ------- Midland Products, Region 6 (Continued) treatment plant will operate continuously and will be monitored a minimum of 20 hours per week until the ground-water cleanup goals are achieved. 468 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Mid-South Wood Products, Region 6 Mena, Arkansas Status: The soil cleanup phase of the remedial actions has been completed, and the ground-water recovery and treatment system has been built and is currently operating. EPA will review the effectiveness of the remedy every 5 years. The first 5-year review was scheduled to be conducted in 1993. The site is currently an active wood processing plant. Results and Benefits: The 5,700 people served by drinking water wells risked exposure to contaminated ground water. These residents have now been connected to an uncontaminated public water supply. The threat to valuable stream fisheries located near the site has been addressed by the selected remedies. Consolidating and capping the contaminated soil and installing surface drainage systems and sumps will significantly reduce the potential for further surface- water contamination. Background: The Mid-South Wood Products site is an active wood processing plant in Mena, Arkansas. Of the 57 acres owned by the company, only 10 acres were affected by contamination. Waste products including pentachlorophenol, creosote, arsenic, and chromium from operations conducted from 1967 to 1977 by a former owner have contaminated surface waters. The abandoned plant area included an old treatment plant, two waste ponds, a landfill, the north and south landfarms, and Clear Lake. Contamination occurred both onsite and offsite in soils, surface water, and ground water. The small Old Pond received pentachlorophenol (PCP) and creosote waste from the wood treatment. Materials from the Old Pond were spread over the landfarm areas. Clear Lake had received runoff from all the areas. Actions: Investigation of the plant began in 1976 when several fish kills were reported downstream of the site. The ground water and soil were found contaminated with PCP, polycyclic aromatic hydrocarbons (PAHs), and heavy metals including arsenic and chromium. About 5,700 people served by drinking water wells within 1 mile of the site risked exposure to contaminated ground water. As a result, residents were connected to an uncontaminated public water supply. The selected remedies included excavating, consolidating, and stabilizing contaminated soils and placing them in the north landfarm area and covering this area with a clay cap to keep out water. Free oil, liquids, or sludges were located in the Old Pond area and stabilized. 469 ------- Page Intentionally Blank 470 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Pagano Salvage, Region 6 Los Lunas, New Mexico Status: The initial emergency action is determined to have removed contamination at the site, and no further remedial activities are needed. There are no institutional controls on the site, and reuse is likely. The site was deleted from the National Priorities List (NPL) in 1992. Results and Benefits: Through initial emergency removal actions, the health threats by ingestion or inhalation of the contaminated soil and the potential threat to ground water have been removed. Property values for this site have returned to full market value. The site is currently unoccupied. Background: A family-operated salvage facility was on this 1- acre site since the early 1960s. Some materials included transformers, capacitors, and drums. In 1983, the operators used transformer oil containing polychlorinated biphenyls (PCBs) to burn insulation off salvaged electrical wire. This residential site is fenced on three sides, with an irrigation ditch along the rear of the site. Surface water near the site is used to irrigate croplands. Public and private wells within 3 miles of the site supply about 11,000 people. Actions: In September 1984, the New Mexico Environmental Improvement Division (NMEID) inspected the Pagano Salvage site. They found levels of PCBs exceeding the EPA's action level of 50 ppm over most of the property to depths extending from 1 to 2 1/2 feet. The operator determined that the source of PCB contamination was from one "lot" of salvage purchased from Sandia National Laboratories (SNL) in mid-1983. When SNL was notified of the PCB-contaminated lot, it subsequently removed the capacitors from the Pagano Salvage Yard in June 1985 and sampled the rest of the drums in that lot. When the analysis confirmed PCBs in the drums as well, SNL removed the contaminated drums at a later date. In September 1985, EPA Region 6 sampled the soil to assess the immediate threat to public health, welfare, and the environment. The site was proposed for inclusion on the NPL in June 1988. EPA's Emergency Response Branch (ERB) began on-site removal operations on June 20, 1989. Notice letters were sent to seven identified potentially responsible parties (PRPs), allowing them the opportunity to participate in the removal action. The PRPs declined to undertake the removal action; however, some expressed an interest in funding the action. Consequently, a preliminary agreement was negotiated, whereby EPA would conduct the cleanup and the PRPs would eventually reimburse EPA for total project costs. The entire site was excavated to a depth of 10 inches below the original grade and samples from each grid were analyzed onsite. Additional 471 ------- Pagano Salvage, Region 6 (Continued) core sampling revealed PCB and pesticide and disposal of material offsite. Approximately contamination at depths of more than 6 feet. 5,100 tons of soil and debris were disposed of Because ground water was possibly within 5 feet offsite and approximately 4,900 cubic yards of of the surface, these findings were cause for "native* soil were restored to the site. concern. The removal action was expanded to continue the sampling/excavation procedure 472 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Pesses Chemical Company, Region 6 Fort Worth, Texas Status: Emergency response actions were conducted by EPA in 1983. The site was listed on the National Priorities List (NPL) in 1986, and subsequent cleanup actions were completed in 1992. The site will be inspected every 5 years to review the effectiveness of the remedy because hazardous materials remain onsite. The site currently contains a facility for reclaiming metals from electronics components. Results and Benefits: Remediation of the site has successfully controlled contaminant migration to surrounding properties. Consolidation of contaminated onsite and offsite materials and their subsequent stabilization have alleviated a potential source of health risk. The potential health threat posed by airborne contaminants to workers in the nearby freight yard, area residents, and patients at a neighboring rehabilitation center has been averted. Disposing of all contaminated materials under a concrete cap and covering other areas with concrete have enabled the reuse of the entire site. The northern portion of the 4.2-acre site is currently being used by a metals reclamation facility. Operators report that they are using the concrete cover in that section as a staging area for computers brought in for salvage. Although it is not currently in use, the concrete cap in the southern section of the site is also available. Background: In mid-June 1979, the Pesses Chemical Company of Solon, Ohio, began operating a metals reclamation business in Fort Worth, Texas, without construction or operating permits required by the State. The operation reclaimed cadmium and nickel from off- specification dry cell batteries and waste metals sludges. The property, located in a light industrial and commercial area, was divided into northern and southern sections. Pesses' operations were conducted in a fence-enclosed portion of the triangular lot. The process area included a metal warehouse containing equipment, a baghouse, two underground sumps, and an unprotected storage yard with a concrete pad. The northernmost section of the site included an office building, brick warehouse, and asphalt parking lot. An abandoned field comprised the southern portion of the site. to July and August 1979, high-level cadmium emissions prompted investigations by both the city and State air pollution control offices. The operators temporarily halted activities so that the appropriate permits could be obtained. Once work resumed, however, subsequent emission measurements indicated cadmium concentrations as high as 29 times the permitted limit. When the parent company filed for bankruptcy to January 1981, operations at the Fort Worth facility were discontinued. Approximately 1,500 to 2,000 deteriorating 55- gallon drums, metal sludges, and empty battery 473 ------- Pesses Chemical Company, Region 6 (Continued) casings were abandoned on the property. In March 1983, cadmium oxide fumes that formed during a grass fire at the site caused one firefighter to be hospitalized. In April 1983, EPA followed up on the incident and began a removal action. Heavy metal contamination of airborne dust and surface water runoff were the primary threats identified. The closest residential districts are located approximately 1/2 mile to the east and 3/4 mile southwest. An outpatient drug rehabilitation center with outdoor facilities borders the site on the north side. The immediate eastern and southern borders are occupied by the Union Pacific Kailyard. Five schools are located within a 1-mile radius of the site, and approximately 20,000 people work and/or live within 1 mile of the site. Actions: Initial actions toward the cleaning of the Pesses Chemical Company site began in April 1983 when EPA removed 3,400 cubic yards of contaminated topsoil, drums, wastes, and debris. To prevent exposure to the contaminated soils, a temporary cap was installed over the south storage yard. Soil analysis conducted by EPA indicated extensive lead, cadmium, copper, and nickel contamination. Further investigation showed an offsite migration of contaminants, including migration toward a property adjacent to the rehabilitation center. In 1988, the Pesses Chemical Company and six generators also identified as responsible parties installed a fence around the northern section of the property. On September 14,1991, the Texas Water Commission (TWC), as the lead agency, issued the notice to proceed with the remediation. The final remedial alternative chosen was insitu stabilization and capping. Workers excavated and consolidated approximately 1,800 cubic yards of offsite soil and 9,000 cubic yards of onsite waste in the south field located directly behind the storage yard. The combined materials were treated in place and stabilized. After reshaping the resultant mound, the area was covered with an 80-milthick textured HDPE top liner followed by an 8-inch-thick, double-reinforced, steel concrete cap. The fenced areas around the metal warehouse and storage yard in the southern section of the site and the area around the office building in the northern section were also covered with concrete. The metal warehouse and some miscellaneous equipment were decontaminated. The decontaminated metal equipment was sent offsite to be melted down for reuse. Contaminated wash water was used in the contaminated soil compaction and stabilization activities. EPA, TWC, and the oversight engineer conducted the final inspection for the site on September 15,1992. 474 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Sol Lynn/Industrial Transformers, Region 6 Houston, Texas Status: Remediation of contaminated soil was completed in March 1993. Construction of the ground- water treatment facility was completed in September 1993. Ground-water remediation is expected to continue through September 2003. The site is used for various commercial operations. Results and Benefits: The selected remedy has eliminated immediate threats to human health and the environment by removing contaminated soil which presented a direct contact and ingestion hazard and treating contaminated ground water which posed a potential ingestion hazard. Future contamination of surrounding soils and ground water has also been prevented. Background: The Sol Lynn/Industrial Transformers site is a 2-acre facility located in Houston, Texas. From approximately 1965 to the late 1970s, the site was used by the Industrial Transformer Company as an electrical transformer cleaning and recycling facility. The site was leased from 1979 to 1980 to Sila-King, a chemical supply company that bought used drums for resale. As a result of both businesses' operations, polychlorinated biphenyls (PCBs) were released into the ground, and trichloroethylene (TCE) was released into the ground water. In 1981, strong odors originating from the site prompted investigations that revealed approximately 75 punctured TCE drums scattered about the property. Subsequent analytical samples collected at the site identified PCB contamination in the top 2 feet of the soil and TCE contamination in the two uppermost water-bearing zones. The area around the site is a mix of commercial, residential, and light industrial communities. Approximately 2,100 people live within a 1-mile radius of the site. Four City of Houston drinking water wells and four private drinking water wells that serve more than 10,000 people are located within 3 miles of the site. Actions: fa 1989, parties potentially responsible for site contamination installed a fence around the site to limit direct access to hazardous chemicals. Site remediation was divided into two parts. The first part, began in May 1991, consisted of the excavation and onsite chemical dechlorination of 2,400 cubic yards of contaminated soils. Due to unforeseen side affect of the dechlorination unit on the soil, the soil treatment was discontinued, and the soil was disposed of in an approved landfill. Soil remediation was completed in March 1993. The second part of the site remediation consisted of pumping approximately 3.2- million gallons of contaminated ground water to a treatment facility where TCE would be removed from the water via air stripping and granulated activated carbon filters. Construction of the treatment facility began in February 1993 and was completed in September 1993. Ground-water remediation is on-going. 4.7!* ------- Page Intentionally Blank 476 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Stewco, Inc., Region 6 Waskom, Texas Status: The Stewco Inc. site is an abandoned industrial site. Based on the effectiveness of an initial removal action, no further action is necessary at the site. Additionally, no long-term monitoring is needed. Results and Benefits: Removal activities have reduced the potential for exposure to hazardous substances at the site to the target risk range set in the National Contingency Plan (NCP). The removal of contaminated waters and sludges from onsite ponds, followed by backfilling and capping of the pond disposal area prevents infiltration and surface water exposure, and eliminates the potential threat to the public from direct contact with any residual contamination that may remain onsite. Background: The 2.5-aere Stewco site, located in a mixed residential, commercial, and industrial zone, consists of two nonadjacent locations that are about 1-mile apart. Location 1 is a 1/2-acre plot that includes a maintenance shop with fueling facilities, a truck-tank washing facility, and two backfilled and capped evaporation ponds that received wastewater from the tank washing operation. Location 2 consists of a third pond that received excess wastewater conveyed by truck from the evaporation ponds at location 1. Land close to the site is used for limited grazing of livestock Approximately 3,300 people live within 3 miles of the site and use ground- water wells for drinking water; 50 homes are within 1/2 mile of location 1; and 30 homes are within 1/2 mile of location 2. The previous owner contracted with the oil and gas industry to haul glue, resin, gasoline, diesel fuel, jet fuel, and creosote. Trucks were steam cleaned between loads with an alkaline solution, and the wash water was routed to a pond to evaporate. In 1976, the former owner was permitted for disposal of wastewater from the truck washing operation. The Texas Water Commission recorded numerous instances of permit noncompliance, that included: unauthorized discharges; ground-water contamination; and inadequate operation of the wastewater neutralization facility. After the site was abandoned in 1983, the unlined ponds at location 1 filled with rain water and began to overflow their dikes. Actions: In April 1984, in response to the potential collapse of the dikes, EPA treated and discharged 400,000 gallons of liquid wastes from location 1 and stabilized 5,500 cubic yards of sludges for offsite disposal The pond disposal area was then backfilled and capped. No removal action took place at location 2 because the level of contamination did not pose a risk to human health and the environment. However, a fence was constructed at the second location to restrict access. Based on the potential for site contaminants to migrate to the Wilcox Aquifer (the drinking water supply for the city of Waskom) the site was added 477 ------- Stewco, Inc.* Region 6 (Continued) to the National Priorities List (NFL) on June 10, removal action, the residual contamination 1986. In 1988, EPA conducted investigations remaining in the soil, pond sediments, and of potential offsite and active facilities that ground water posed no threat to public health appeared to be contributing to ground-water or the environment. Therefore, no further action contamination at the site. EPA determined that is necessary at the site. Additionally, long-term based on the effectiveness of the previous monitoring will not be required. 478 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Triangle Chemical Company, Region 6 Bridge City, Texas Status: The completion requirements for this site have been met. Confirmatory sampling has verified that the Record of Decision (ROD) cleanup objectives (removal of tanks, drums, containers, and contaminated trash and aeration of soils) have been achieved and cleanup actions specified in the ROD have been implemented. Currently, the site is inactive. Results and Benefits: Risk to human health from direct exposure to contaminants has been reduced by limiting site access using a chain-link fence with barb wires along the site perimeter. Also, EPA has removed or treated those materials where contamination was detected to de minimis levels (levels which no longer pose any threat to human health or the environment). Background: The Triangle Chemical Company site is a 2.3- acre tract located on Texas State Highway 87, just north of the city limits of Bridge City, Texas. This is a moderately populated residential area. In 1991, 15 residences and 50 mobile homes were within 1/4 mile of the site. The nearest drinking water wells are more than 3 miles from the site. The Triangle Chemical Company operated a chemical mixing and blending facility at this site from the early 1970s until 1981. During the company's operating period, various types of industrial cleaning compounds, automobile brake fluid, windshield washer solvents, hand cleaners, and pesticides were produced. Raw materials and finished products were stored onsite in bulk surface storage tanks and 55- gallon drums. In 1981, following issuance of a temporary injunction by the State, the company went bankrupt and abandoned the site, leaving over 1,000 unlabeled drums. The air, ground water, soil, surface water, and liquids in abandoned tanks were contaminated with volatile organic compounds (VOCs) and various acids. Ground water in the aquifer under the site flows to the northeast and discharges into Coon Bayou. The concentration of contaminants in the air and surface waters were low and did not likely pose a threat to the nearby population. Actions: In 1982, EPA installed a 6-foot chain-link fence to stop public access to the site. Drums were removed, and contaminated soils were bulked and solidified and then landfilled along with equipment. The remedial investigation, completed in April 1984, identified specific zones of soil contamination that ranged from 1 to 6.5 feet deep. Also, the continued deterioration of the abandoned storage tanks was identified as a potential threat of further contamination. In 1985, the fence was repaired and expanded, a drainage canal was dug, and about 1,000 gallons of organic solvents, 170 cubic yards of contaminated solids, and one drum of triethylamine were removed. Site remediation activities included the following: liquids in storage tanks and drums were incinerated offsite or injected into a deep 479 ------- Triangle Chemical Company, Region 6 (Continued) well; storage tank sludges were landfllled offsite; onsite structures were decontaminated; and contaminated soils were plowed and aerated to release contaminants. On March 12, 1987, a final inspection was conducted. Results of soil analysis indicated that VOCs in soil were essentially reduced to background levels. Modeling of the ground water indicated that the contaminant concentrations in the shallow ground-water aquifer would naturally attenuate to meet drinking water quality within 12 to 20 years. A deed notice was placed in local land records to notify potential purchasers of the existence of contaminants in the upper aquifer. Continued site operation and maintenance activities that are performed include annual inspections to ensure that erosion control measures are effective, routine mowing, and maintenance of the perimeter fence. Additional ground-water sampling is also conducted to monitor contaminant reductions in the uppermost aquifer. 480 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET American Thio-Chem Site, Region 6 Tarrant County, Texas Status: This site was representative of a classic emergency removal action, according to EPA descriptions. This removal action was completed in 4 months from the time of its discovery. Results and Benefits: The threat of fire/explosion and the resulting airborne pesticide/herbicide exposure to the surrounding neighborhood were removed. The former operator of this site, Roger Tannery, was ordered to pay over $13 million in penalties for failing to comply with toxic cleanup laws. This involved nearly $1 million in cleanup costs and $12.5 million in civil penalties. This was the largest penalty assessed under the Superfund program as of December 1992. Background: Drums and other containers in an abandoned, condemned, unsecured warehouse were noticed by police in 1988. The vandalized building, formerly used by a veterinary medicine fonnulator, contained three laboratories, three formulation areas, and five storage areas. It was later found to contain hundreds of drums of pesticides, herbicides, ethers, and flammable and corrosive materials such as laboratory reagents, production samples, and products. Over 300 drums and 10,000 containers of these materials were found, along with 15 compressed gas cylinders. EPA records indicate that over 69 tons of chemicals were stored at the site. This multilevel building, near the historic Fort Worth Stockyards, is in a neighborhood with residences, an elementary school, and other businesses. Actions: The regional support contractor and the Technical Assistance Team (TAT) established 24- hour site security, and identified and inventoried the abandoned materials. Warning signs were posted in English and Spanish. To safely perform the removal operations and contain the contents of the building, it was necessary to improve its structural integrity by reinforcing flooring and ceiling beams, and by rebuilding staircases. By analyzing the Material Safety Data Sheets (MSDSs) and formulation sheets, the TAT and regional contractor were also able to establish helpful contacts with many suppliers. All the materials were suitably treated, neutralized, incinerated, landfilled, recycled, or deep-well injected. Afil ------- Page Intentionally Blank 482 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Billing Smelter, Region 6 Socorro, New Mexico Status: Emergency actions under the Superfund removal program have succeeded in consolidating and capping the contamination onsite. Results and Benefits: The selected remedy was cost-effective and effectively mitigated the imminent and substantial threats posed to human health and the environment by this old smelter site, particularly the risks of heavy metal exposure to young children living in the residential areas immediately adjacent to the site. Background: The Billing Smelter site operated for 11 years, from 1883 to 1894. During its prime, this facility was one of the largest ore reduction smelters in the Southwest United States, processing up to 250 tons of ore containing lead, zinc, and silver daily. The onsite remnants of the old facility include the bases of three smoke stacks, water reservoirs, small ore and coke piles, and 300,000 cubic yards of slag located on approximately 200 acres. Approximately 35,000 cubic yards of soil were found to be contaminated with lead of which approximately 12,000 cubic yards were in direct contact with residential properties, properties that were zoned residential, or properties that directly bordered residential properties. The Agency for Toxic Substances and Disease Registry health consultation stated that "this site should be considered as an immediate health threat to the area residents — especially young children." Actions: After considering several viable cleanup alternatives, EPA determined the most practical to be onsite consolidation of the slag and contaminated soil within the slag pile. This action included the removal of the contaminated soil from the entire site, including residential and vacant areas as well as the slag pile, for consolidation entirely within the confines of the site boundaries. After consolidation, the site was fenced to restrict access, and a flexible asphaltic erosion cap was placed on the consolidated pile of contaminants. Although the asphalt cap and access restrictions cannot be considered permanent remedies, they have effectively removed any immediate exposure risks. The selected emergency remedy will be consistent with a variety of more permanent long-term remedial strategies that may be developed for the site in the future. 483 ------- Page Intentionally Blank 484 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET French Limited Site, Region 6 Crosby, Texas Status: The French Limited Task Group (FLTG) expected to complete cleanup remedial activities by August 1993 and cleanup of the ground water by 1996. Ground-water and surface-water treatment will continue until Texas water quality standards are met. Ground-water monitoring, however, will continue for 30 years to ensure compliance with safety standards. Results and Benefits: Significant accomplishments have been demonstrated at the French Limited site: 23 acres of wetland habitat have been planted and Potentially Responsible Parties (PRPs) have funded all site cleanup costs. In 1985, approximately 90 PRPs identified as responsible for contaminating the site formed the French Limited Task Group (FLTG). FLTG provides oversight of the cleanup activities with EPA and State officials. With input from both FLTG and the community, EPA used a cost- effective and expedient innovative technology known as bioremediation to clean up the French Limited site. This case was the first application of bioremediation at a Superfund site as part of a cleanup plan. Cooperation between EPA, FLTG, and the State of Texas proved vital in the expedition of both site cleanup and restoration of the surrounding wetlands area habitat. In 1989, after collaborating with Superfund staff and the State of Texas, FLTG agreed to finance the entire site cleanup, reimbursing EPA and the Texas Water Commission (TWC) for previous cleanup or related costs. In addition, FLTG will plant and maintain 23 acres of new wetlands near the site in an effort to remedy the damage occurring to wetlands resulting from contaminant migration. Background: The French Limited site is located in a rural area 2 miles southwest of the town of Crosby in northeast Harris County, Texas. This 22.5-acre site was previously used as a hazardous waste disposal facility. Excavations made during sandmining operations during the 1950s and early 1960s created depressions that later became lagoons for petrochemical wastes. From 1966 until 1972, area industries used the site as a chemical byproduct disposal area, dumping approximately 300,000 cubic yards of petrochemical waste into an unlined 12-acre lagoon. After repeated violations, the State of Texas revoked the facility's operating permit in 1973. Because the site is located 1 mile east of the San Jacinto River and lies in the river's floodplain, containment is one problem associated with the site. Frequent flooding in this area caused the waste lagoon to overflow, resulting in contaminant migration to the surrounding areas, one of which is a wetlands area habitat. Contaminant migration was found to have already damaged the wetlands area habitat. In addition, the danger of potential contaminant exposure exists for over 300 residents within 1 mile of the site, as weE as a private well 1,500 feet from the site boundary. 48S ------- French Limited Site, Region 6 (Continued) Actions: The State of Texas requested EPA intervention when the Superfund program was activated in 1980. In 1982, in one of its first emergency response actions, EPA stabilized the site by consolidating wastes onsite and by building a dike around the lagoon to contain the contaminants. With the support of the State, EPA supplied Federal funds to TWC to investigate and determine the type and amount of contamination, and to explore cleanup options. TWC investigators found polychlorinated biphenyls (PCBs), metals, and hazardous organic compound contamination in the surface water, sludges, and soil beneath the lagoon. Based on the results of the TWC investigation, EPA proposed using onsite incineration to destroy site contaminants. FLTG, however, suggested using a new technology known as bioremediation to destroy the site contaminants. In 1987, EPA conducted a bioremediation test and, thereby, concluded that bioremediation was more cost-effective and as expeditious as onsite incineration. Furthermore, bioremediation utilizes naturally occurring micro-organisms to neutralize contaminants, and could be used to treat contaminants in the lagoon, ground water, surface water, and soil. After receiving public input, EPA decided in 1988 to use bioremediation to treat onsite waste. Following treatment by bioremediation, the lagoon water will be sent to an onsite water treatment plant, clean soil will be mixed with the decontaminated soil to fill the lagoon, and the surface will be reseeded. 486 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Gramlich Residence Site, Region 6 Sebastian County, Arkansas Status: This removal action was completed in November 1988. Areas from which contaminated soils were taken have been backfilled with clean soil. Results and Benefits: The removal of over 2,600 cubic yards of soil contaminated with polychlorinated biphenyls (PCBs) above the Toxic Substances Control Act (TSCA) mandated cleanup level of 10 ppm effectively removed the imminent and substantial public health threats in this residential neighborhood. During the investigative plan and subsequent removal action, several innovative activities, previously unused in Region 6, were demonstrated. These activities included a multiphased air monitoring program to protect residents and workers during the removal; development of comprehensive computer data bases for management of air and soil samples; and the use of a full-service command post during both the investigative and removal phases. The Field Analytical Screening Program (FASP) at the site supported the extensive air and soil sampling and analysis effort. The On-Scene Coordinator (OSC) found the use of this command post setup valuable and recommended that this strategy be used for future time-critical removals. Background: A one-city-block area in Fort Smith, Arkansas, was contaminated with PCBs as a result of storage and spraying of PCB-containing oils from 1958 to 1970. Until recently, waste oil was commonly sprayed on unpaved roads to control dust emissions. In March 1982, however, the Arkansas Department of Pollution Control informed Region 6 that potential PCB contamination existed at the Gramlich residence due to improper storage and application of PCB oils by the resident. At the time of his actions, Mr. Gramlich, now deceased, apparently had no knowledge of the harmful effects of PCBs contained in the oil. Further, it appears that he had taken the oil from his employer without the employer's knowledge. Mr. Gramlich also was reported to have mixed and applied PCB oil and pentachlorophenol as a water-proofing solution, as well as PCB oil and chlordane as a termaticide under and around several homes in the area. Wind and water facilitated the erosion/ mitigation of contamination downgradient of the Gramlich residence. In October 1982, the Arkansas Department of Pollution Control and Ecology (ADPCE) conducted a limited removal using the Governor of Arkansas' Emergency Fund. In 1987, in an effort to satisfy the regulatory statutes regarding final disposition of potential Superfund sites under legislation of the Superfund Amendments and Reauthorization Act (SARA), EPA conducted sampling at this site. Results indicated that additional action was warranted, due to PCB levels up to 18,000 ppm still remaining. TSCA mandates, a 10-ppm cleanup level for PCBs in soil. This level was adapted as the cleanup goal for this site. Actions: As a result of initial sampling results, EPA Region 6 determined that a significant threat to public health existed on this site and authorized 487 ------- Gramlich Residence Site, Region 6 (Continued) an extensive site assessment of the area. To achieve the necessary confidence in results, 2,453 soil samples were taken from the lots, drainage pathways, and alleys associated with the site. Of these samples, 276 (11 percent) had concentrations greater than the cleanup standard of 10 ppm. These samples were analyzed by the Field Analytical Screening Program (FASP) at the site. Over 2,600 cubic yards of contaminated soil/ debris were removed from 21 residential lots as well as from associated unpaved alleys and surface drainage ditches. This material was placed in 131 roll-off boxes and end dumps that were removed from the site to a TSCA/ Resource Conservation and Recovery Act (RCRA)-approved facility. During remediation, extensive air monitoring and sampling activities were conducted. The presence of the onsite laboratory was cited by the OSC as being a significant benefit to effective completion. After removal, the site was restored to "pre- removal" conditions. 468 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Hastings Radiochemical Site, Region 6 Pearland, Texas Status: The removal actions at this site have been completed, and the site is now fenced and posted with warning signs denying public access. Although this site did not score a high enough rating to be placed on the National Priorities List (NPL), a health advisory was issued by the Centers for Disease Control in 1985. Follow- up activities would be necessary to remove the contaminated structure and the barrels of soil remaining onsite. Results and Benefits: The removal of radioisotopes mitigated the direct exposure threat to children who play in the yard of a nearby residence. The potential for dispersal of contaminants offsite, into the food chain and the environment, was diminished. Unnecessary radiation exposure to humans was also mitigated. The area is becoming less rural and more suburban as additional homes are being built in the area. The potential for beneficial use of the land is clearly demonstrated by the efforts of the current owner to subdivide the property into smaller plots for development. Subdividing the original site could allow uncontaminated portions of the property to be used or resold without deed restrictions. Background: Hastings Radiochemical, Inc. (HRI) was a radiochemical processing facility under license from the Texas Department of Health, Bureau of Radiation Control (BRC), and was in operation from 1965 until 1971. When HRI went out of business, it left behind a contaminated building and the adjacent soils, a contaminated septic tank system, buried fuel tanks with radioactive contaminants, and other contaminated materials in several nearby locations. In the mid-1970s, the Texas BRC identified several instances of contamination in the area that might have been linked to the Hastings operation. Several other Superfund sites are known to be linked to the Hastings operation. A BRC survey conducted from May 2 through 3, 1984, indicated cesium "hot spots" (areas of high concentration) with counts of gamma radiation 10 to 300 times above background in the nearby residential area. HRI operated out of a converted gasoline filling station on Texas Highway 35 in Brazoria County, about 4 miles south of Pearland, Texas. HRI constructed a laboratory facility in the two garage bays where cesium-137, americium-241, and other isotopes were used in the formulation of radiographic sources and radiochemicals. Radiological hygiene during operation was apparently poor, as soils around the building including the unpaved parking lot, a residential lawn, drainage ditches, and large portions of the building were significantly contaminated with the isotopes. The septic tank system and three buried fuel tanks contained contamination. Highway drainage ditches and surface soils in the area were also contaminated. Cesium-137 had migrated in the ditches as much as 1/4 mile down gradient. Approximately 35 feet north of the building was a restaurant that shared a common unpaved parking lot. The proximity of the restaurant to 489 ------- Hastings Radiochemical Site, Region 6 (Continued) cesium-laden soils increased the threat of contaminating foodstuffs. The building occupied a corner lot on the entrance road to a small residential subdivision. The nearest residence to the site was approximately 100 feet from the garage bays. Storm drainage from the building flowed along a ditch less than 50 feet from the residence. Actions: No identifiable Potentially Responsible Parties (PRPs) were associated with this site. EPA's decontamination of the site consisted of knocking down sections of the filling station building and collecting the debris along with the contaminated soil, septic tank system, and fuel storage system components. These components were transported to a low level nuclear waste facility in Beatty, Nevada, for disposal. The site is now fenced and posted with warning signs alerting the public to the dangers of the site. Inside the fenced perimeter exists the old filling station structure and some barrels of soil generated by EPA activities onsite. 490 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Smith Company of Uvalde, Region 6 Zavala County, Texas Status: Serious threats to human health and the environment prompted EPA to take this time- critical removal action. This action required only 3 months to complete, and the site was never placed on the National Priorities List (NPL). The site is currently inactive. Results and Benefits: The threat to a major drinking water aquifer was removed, as well as a threat to the general public from inhalation or dermal contact with the contaminated soil. Reuse of this site may be hampered by liability concerns. Because of the low population density and ready availability of land, the former use of this site would likely deter would-be purchasers. This action demonstrated the usefulness of the Field Analytical Screening Program (FASP) mobile laboratory at the site. EPA also realized significant savings in both time and money by using this program. Background: This site, located approximately 1 mile west of Batesville, Texas, was operated for approximately 35 years by a formulator and aerial applicator of pesticides. In late 1988, the Texas Water Commission fTWC) informed EPA Region 6 that significant pesticide contamination, potentially threatening a major drinking water aquifer, existed at this site. The facility was in bankruptcy and was nonoperational, but several hundred gallons of pesticide formulations/concentrates and flammable carrier "oils" in deteriorating 55- gallon drums and surface storage tanks remained onsite. In addition to these chemicals, three unlined disposal pits were present on the site and posed an imminent and substantial threat to the drinking water in the area, as this entire facility was located on a documented aquifer recharge area. According to TWC files, at least 67 different pesticides were formulated, applied, or sold at the Smith Co. facility. Some of these were toxaphene, malathion, methyl and ethyl parathion, lindane, DDT, heptachlor, eldrin, and DEF. Actions: An initial EPA survey of the site identified five major areas of pesticide contamination, which extended to a 22-foot depth in one pit. In collaboration with the Agency for Toxic Substances and Disease Registry (ATSDR), it was determined that there was an extensive, severe, and immediate threat to human health and the environment. Using the FASP mobile laboratory during the site investigation minimized the time required for sample analysis. Under EPA authority, approximately 600 gallons of carrier "oils" and halogenated pesticides were sent offsite to a thermal destruction facility for disposal. The nonhalogenated pesticides were treated onsite (solidified). The top 18 inches (approximately 3,400 cubic yards) of contaminated soil/debris and solidified nonhalogenated pesticides were removed from the site to an approved hazardous materials facility. Several tons of contaminated metal were decontaminated and left onsite to be sold by the bankruptcy officials. Because of its proximity to one pit, one water well was plugged 491 ------- Smith Company of Uvalde, Region 6 (Continued) to prevent contamination from migrating into a deep aquifer through the well casing. Loss of this well is not expected to pose a burden for future use of the site because access to the city water supply is available. Fifteen 1-gallon containers of the pesticide pentachlorophenol (PCP) remain in storage on the site. This type of pesticide is a listed dioxin waste (F027). An airplane hangar located on a remote section of the site was secured and modified into a Resource Conservation and Recovery Act (RCRA) storage vault for this material. 492 ------- REGION SEVEN ------- Page Intentionally Blank ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Aidez Corporation, Region 7 Glenwood, Iowa Status: Immediate removal actions and two long-term remedial phases directed at cleaning up contaminated soils and ground water have been completed. EPA is in the process of deleting the site from the National Priorities List (NPL); however, significant restrictions on site usage and well water remain. Benefits and Results: The removal of wastes to a secure landfill and the establishment of security measures at the Aidex Corporation site removed the potential for human contact with hazardous materials. The site has been cleaned to concentration levels compatible with its original industrial use; contaminant levels prohibit certain other uses. The site has been listed on the State of Iowa's Registry of Hazardous Wastes or Hazardous Substances Disposal Sites, which stipulates that the reuse of the sites should not significantly differ from the original use. Several reusable metal buildings remain on the site. The City of Glenwood is the current owner of the site and expects issues concerning an EPA lien against the property for cleaning costs to be settled soon. Although the property cannot be sold at this point, the city continues to investigate the possibility of a new firm locating at the site. In 1992, the responsible parties agreed to a Consent Decree with the State which included settlement money to cover cleanup costs and future monitoring and site maintenance. Background: In 1975, the Aidex Corporation began operating a pesticide formulations and packaging facility in a rural area north of Glenwood, Iowa. Approximately 600 people live within 3 miles of the site. Forty-two shallow domestic water wells are within a 2-mile radius of site. Processing operations on the 15-acre site involved both liquid and dry agricultural chemicals. Prior to a fire which destroyed the liquid formulations building in November 1976, contamination in surface soils was confined to certain defined areas. The water used to extinguish the fire, however, spread the contamination to a larger area. Operations at the Aidex Corporation continued on a reduced scale until the company filed for bankruptcy 3 to 4 years later. A concrete pit in the burned-out building contained about 2 feet of contaminated water, and a large underground storage tank also held contaminated materials. In addition to soil and surface water contamination, a shallow aquifer underlying the site was also found contaminated. The site was placed on the NPL in 1983, and was the top priority site in Iowa at that time. Actions: Immediate actions restricting access to the site were initiated in late 1981, when the EPA constructed a security fence around the site. Subsequent investigations and studies of the 49K ------- Aidex Corporation, Region 7 (Continued) site led to a three-phased cleanup that targeted ground-water and soil contamination. The first phase, completed in 1983, focused on the cleanup of surface contamination. EPA and the Army Corps of Engineers supervised cleanup work that consisted of gathering and placing wastes in approved containers, storing wastes that were spread throughout the yard, draining and decontaminating a buried tank and a waste pit, and constructing a drainage ditch around the site to prevent excessive water from infiltration. The second and third phases involved removing repacked drums and large amounts of debris from the site, and cleaning all accessible surfaces inside the buildings. These phases were completed in 1984 and 1986, respectively. EPA and the Army Corps of Engineers removed 20,608 cubic yards of contaminated soil and buried wastes to a permitted disposal facility. Regrading of the site began in the spring of 1987. During that year, the State of Iowa also initiated a sampling program to evaluate ground-water conditions in on- and offsite wells. Sampling episodes were conducted twice a year. Current sources indicate that onsite wells should not be used for drinking water. In 1991, EPA concluded that the site posed no further significant risks, and a site completion report was finalized in 1992. 496 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Arkansas City Dump, Region 7 Arkansas City, Kansas Status: Construction of the remedy at the Arkansas City Dump was completed in the summer of 1992. The State is overseeing the operation and maintenance required by the remedy. A 5-year review will be conducted in 1997. The site continues to support commercial and light industrial uses, although not in areas of actual waste disposal. Results and Benefits: The threat of direct contact with the waste has been eliminated by treatment and containment. Ground water, which is being used or is likely to be used as drinking water, is not at risk of contamination. Institutional controls are in place to protect the remedy. Background: The 200-acre site consists of a former petroleum refinery and a municipal waste dump. The refinery, which operated from 1916 to 1927 when it was destroyed by fire, treated partially- refined crude oil with sulfuric acid to separate out asphalt and paraffins. This process created about 1.5 million cubic feet of acidic sludge that was disposed of onsite in a 3-acre area. In addition, more than 500,000 gallons of residual oil product are present in the subsurface soils. Later, municipal and domestic solid wastes were disposed of onsite. Much of the contamination at the site is outside the jurisdiction of CERCLA based on "the CERCLA petroleum exclusion." The site has been in continuous light industrial and commercial use. Currently, portions of the site are used for vehicle maintenance, fabrication of trailer frames, and welding. The site is in the 100-year flood plain and is separated from the Arkansas River by a levee. EPA understands that the Army Corps of Engineers and the city of Arkansas City have plans to improve this levee. The surrounding area includes residential and commercial property. About 6,500 people live within 3 miles of the site. Actions: Two Records of Decision (RODs) were written for this site. The first specified the selected remedy for the acidic sludge, while the second confirmed no further remedial action was required for the remainder of the site, in part because of the petroleum exclusion, but also because no significant risk to human health or the environment is posed by the site because the remedy selected in the first ROD is complete. The ROD specified in situ neutralization of the acidic sludge waste. Due to poor percolation and insufficient mixing, changes to the selected remedy were made and documented in the Explanation of Significant Differences. The revised remedy consisted of excavating the acidic sludge, neutralizing the excavated material with lime and cement kiln dust, and placing the treatment residual in the excavation. The treated waste was capped to prevent infiltration of rain water, and to prevent direct contact with the treatment residuals. Operation and maintenance to preserve the integrity of the cap is continuing. Construction was completed during the summer of 1992. Deed restrictions are in place to protect the cap. AOrr ------- Page Intentionally Blank 498 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Big River Sand Company, Region 7 Sedgwick County, Kansas Status: The Big River Sand Company site was deleted from the National Priorities List (NPL) on October 14, 1992. The site is being used for sand and gravel mining. Results and Benefits: The site has been cleaned up for unrestricted use. Removal of wastes disposed onsite has eliminated any significant risk to human health or the environment. Background: The 123-acre site has two property owners. Mr. Vic Eisenring currently owns the eastern half and previously owned the entire property. The Big River Sand Company bought 80 acres of the western portion of the property in 1978. Sand and gravel mining is still active on both sites. During the 1970s, roughly 2,000 drums of paint- related waste were disposed of at the site next to the 5-acre quarry lake. In 1982, under terms of the 1978 sales agreement and a court order, Mr. Eisenring began moving the drums to his property. The Kansas Department of Health stopped the action because Mr. Eisenring did not have a permit to store or dispose of the waste. Sampling detected volatile organic compounds (VOCs) (including toluene, ethylbenzene, and trichloroethylene) and metals (including arsenic, cadmium, chromium, lead, and selenium). The wastes were determined to be characteristically hazardous due to ignitablity and chromium toxicity. Actions: The site was proposed for placement on the NPL in October 1984. In May 1986, the site was placed on the NPL. The drums were removed from the site from 1982 to 1984. Approximately 40 cubic yards of hazardous paint sludge were disposed of at an offsite licensed hazardous waste landfill, about 10,000 gallons of solvent were recycled offsite, and the nonhazardous waste was disposed of at the local landfill. Subsequent to the removal actions cited above, the remedial investigation sampled soil, sediments, and ground water. No significant contamination was detected. The Record of Decision (ROD) confirmed the no further action alternative. 4.QQ ------- Page Intentionally Blank 500 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Conservation Chemical Company, Region 7 Jackson County, Missouri Status: Remedial activities are currently under way to treat the contaminated ground water. Precautions are being taken to ensure that remedial activities at the site do not result in human exposure. All remedial measures including soil cleanup measures, ground-water extraction, and a ground-water treatment system have been completed. Today, the site exists as a capped, regraded, and revegetated property. The entire parcel is also fenced to restrict access. Results and Benefits: The Missouri River and its Kansas tributary, the Blue liver, are being spared the offsite migration of hazardous waste as pumping stations draw contaminants away from the rivers and toward treatment facilities. Unlined pits once allowed dioxin (2,3,7,8-TCDD), one of the most toxic substances known, and other contaminants to migrate into the ground-water supply. The direction of the ground-water movement is to the northeast, toward the Missouri River. It is obvious that ground-water contamination was occurring. The wastes were buried to a depth of at least 8 feet. The ground-water depth under the site varies from 5 to 10 feet, so that during the wetter parts of the year, the ground water was coming into direct contact with the waste. Due to swift action by EPA, Potentially Responsible Parties (PRPs) signed a Consent Decree in April 1988, and remedial construction was completed and in operation by April 1990. An inward ground-water gradient toward the extraction wells has halted the further migration of these contaminants. There is no direct evidence of any human exposure from this site. Background: This 6-acre site lies between Hawthorne Power Plant and Mobay Chemical Company, on the floodplain of the Missouri River near the confluence of the Missouri and Blue Rivers. The site had been used as a hazardous waste landfill. An estimated 93,000 cubic yards of materials were buried onsite. Waste types present included organics, solvents, acids, caustics, metal hydroxides, cyanide compounds, pesticides, waste oils, arsenic, and elemental phosphorus. A site investigation indicated that the hazardous wastes were migrating from the site, contaminating the aquifer beneath and adjacent to the site. Pollutants that had been detected in the ground water adjacent to the site included phenols, cyanide, heavy metals, and organics. principal concern at this site was the potential for lateral migration of hazardous wastes offsite through permeable materials. The nature of some of the contaminants disposed of here could have allowed movement of contaminants in directions other than normal ground-water movement. Action: PRPs implemented the remedial action at this site using a three-phased approach. Phase 1, which was completed in August 1989, included surface cleanup, removal of onsite structures, regrading, placement of a two-layer surface cap capable of supporting persistent vegetation, and 501 ------- Conservation Chemical Company, Region 7 (Continued) placement of rip-rap and fencing along the entire perimeter of the site. Phase 2, completed in April 1990, included installation of eight chemical and eight water-level monitoring wells, and installation of two extraction wells capable of withdrawing a combined total of 300 gallons per minute. The gallons per minute were determined by seeing how much ground water needed to be pumped out to create an inward gradient; that is, water flowing toward the extraction well as opposed to the natural river level. Phase 3, completed in the same month, involved the construction of an onsite ground- water treatment plant which included metals precipitation, filtration, biological treatment, and carbon absorption. 502 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET E.I. DuPont de Nemours & Company, Inc. (County Road x23), Region 7 Lee County, Iowa Status: This site is an industrial waste dump in a rural area of Lee County. Based on the results of a study completed by DuPont in 1991, the remedy selected was to stabilize/solidify all contaminated soil that was above health based levels and place treated soil into a solid monolith. In late 1991, DuPont removed contaminated surface material that was not amenable to this treatment and sent it to an approved disposal facility offsite. After stabilization/solidification of the waste, the monolith was capped, and the cap was graded and planted with vegetation to prevent erosion. Ground-water monitoring wells were installed at the site in 1990. The "no action" alternative was selected for ground water because a complete exposure pathway for ground water does not exist at this site. However, ground-water monitoring is being continued as a precaution. DuPont completed the cleanup remedies on September 8, 1993. Deed restrictions were placed on the site that currently allows for wildlife activity. Results and Benefits: Risk to public health and the environment was reduced by the removal of contaminated surface material while the designs of the selected remedies were completed. Risk was also reduced by capping the waste that was treated onsite. Future contamination of ground water that is used for drinking water was prevented. Deed restrictions on the property were required to ensure the integrity of the cover and the solidified material. Because hazardous substances remain onsite above health based levels, 5-year reviews will be conducted by the site. Background: This site is an industrial waste dump in a rural area of Lee County and consists of two areas (the Baier and McCarl subsites) off County Road X23, about 3.5 miles southeast of West Point, Iowa. The land is agricultural, residential, and woodlands. DuPont estimates that between 1947 and 1953, a volume equivalent to between 48,000 and 72,000 55-gallon drums of paint waste were disposed of at the site. These wastes were placed in shallow pits and burned. DuPont estimates that up to 7,000 tons of ash and unburden sludges may have existed at the site. Contaminants of concern included cadmium and lead, and volatile organic compound (VOCs) from former disposal activities. Approximately 1,200 people depend on private wells with 3 miles of the site as their sole source of drinking water. Two creeks about 1 mile from the site are used for limited recreational areas. Approximately 160 people live within 1 mile of the site; 1,250 people live within 3 miles, with the closest population being 500 feet from the site. Forty private wells and within a mile, and 330 private wells are within 3 miles; the nearest is 500 feet from the site. Actions: On July 5, 1989, EPA issued a Unilateral Order to DuPont requiring a site contamination study. In late 1991, EPA issued a Consent Decree requiring DuPont to design and conduct the site cleanup. The site was proposed for the NPL in June 1988 and was added to the final NPL in September 1990. DuPont completed the cleanup remedies on September 8, 1993. ------- E.I. DuPont de Nemours & Company, Inc. (County Road x23), Region 7 (Continued) Monitoring of the ground water is being continued as a precaution. 5O4 ------- SUPERFUND SITE COMPLETED NFL SITE FACT SHEET Fulbright/Sac River Landfills, Region 7 Springfield, Missouri Status: Remedial actions have been completed for this site. Ground-water monitoring will continue until cleanup goals are met. Deed restrictions are being imposed to prevent future development and ground-water use on the site. Deed restrictions have been placed on the site that is currently vacant, located on the Little Sac River floodplain. Results and Benefits: In January 1990, EPA issued a Consent Decree for the Potentially Responsible Parties {PRPs) to conduct the selected cleanup activities. The cleanup was completed early in 1992; ground- water and surface-water monitoring will continue for 30 years. Background: The 212-acre site consists of the Pulbright and Sac River Landfills. The City of Springfield used these landfills, both of which are closed, for the disposal of municipal and industrial wastes. The Pulbright Landfill, consisting of 98 acres, accepted waste from 1962 to 1968. The larger of the two, the Sac River Landfill, which consists of 114 acres, operated from 1968 until 1974. Industrial wastes disposed of in these landfills included cyanides, acids, plating and paint sludges, pesticide residues, waste oil, and solvents. Between 1,200 and 2,600 drums were dumped into pits at the site with empty 55-gallon drums left in the pits, or in the general area. In 1967, a hauler died when he inadvertently dumped an acid drum into a pit containing cyanide. A sinkhole on a bluff above the Fulbright Landfill contained a few dozen drums and waste residues. About 400 people work or reside within a mile of the site, and an estimated 10,000 people live within a 3-mile radius. The landfill lies in a semi-rural area in the floodplain of the Little Sac River. Surrounding land use includes a police shooting range, animal shelter, and an inactive and an active wastewater treatment plant. The local drinking water supply is drawn from a municipal well and lake upslope of the site. Ground water is also used for crop irrigation and industrial purposes. The ground water contained a variety of volatile organic compounds (VOCs) and other organic chemicals, as well as heavy metals and cyanide from former waste disposal practices. Chromium was also found in sediments. Ground water, as well as treated municipal wastewater, flows into the adjacent Sac River. Because the landfill is in the floodplain of the Little Sac River, waters may have spread contaminants. Actions: In March 1986, EPA issued a Consent Order to the City of Springfield and the PRPs. The Order required them to conduct an extensive site investigation under EPA's oversight. The study was completed by the PRPs in 1988. The remedial design included removing drums, performing ground-water and surface-water SOS ------- Fulbright/Sac River Landfills, Region 7 (Continued) monitoring for a 30-year period, and imposing deed restrictions to prevent future development and ground-water use. 506 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Hydro-Flex Inc., Region 7 Shawnee County, Kansas Status: The site is continuing industrial manufacturing operations. Investigations revealed that the site conditions do not pose unacceptable risks to human health or the environment. A no further action alternative was selected as the remedy for this site. Results and Benefits: The facility has ceased the practices that led to the contamination, and the risks to human health and the environment have been evaluated and found to be acceptable. Background: The 3-acre site has been used by Hydro-Flex since 1971 for the manufacturing of flexible copper couplings, specialized tubing, fittings, and heat exchangers. From 1970 to 1981, wastewater from the manufacturing operations containing chromium and copper were directed to an onsite septic system. A reported one-time attempt was made to dispose of the wastewater into an onsite industrial well. When the municipal sewer became available in July 1981, Hydro-Flex was connected to the Topeka sewer system and onsite disposal ceased. The onsite disposal area was filled with sand and covered with soil. An investigation by the Kansas Department of Health and Environment in 1987 revealed that the onsite ground water was contaminated with copper and chromium. However, the results from offsite wells indicated that chromium and copper levels were not a public health concern. The site was added to the National Priorities List (NPL) in 1989, mainly because of concern for the impact of the site on the drinking water supply. The intake point for the Topeka drinking water system is 6,200 feet southeast of the site on the Kansas River. Approximately 6,500 people obtain drinking water from public and private wells within 3 miles of the site. The surrounding area is primarily industrial/ commercial with several scattered residences. Actions: The remedial investigation commenced in September 1990 to define the nature and extent of contamination in the soil and ground water. Copper and chromium were not detected above background levels in the soil, and the ground- water samples met the drinking water criteria except for unfiltered samples from two wells that exceeded the drinking water level for chromium. All filtered ground-water samples were below drinking water levels for copper and chromium. A remedial investigation and baseline risk assessment of the site determined that onsite and offsite levels of chromium and copper do not pose an unacceptable risk to human health or the environment. The 1992 Record of Decision (ROD) documented the no further action alternative. 5O7 ------- Page Intentionally Blank SOS ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET John Deere (Ottumwa Works), Region 7 Ottumwa, Iowa Status: Construction of the remedy is complete. Access has been controlled by maintaining the security fence, and deed restrictions are in place to restrict residential development on the site. The site continues to manufacture and assemble agricultural equipment. Results and Benefits: The remedy eliminates the principal threat posed by the conditions at the site by preventing exposure. Ground-water monitoring is continuing to verify no unacceptable exposures posed by ground water occur. Background: The 105-acre John Deer (Ottumwa Works) site consists of an industrial facility that has manufactured and assembled agricultural equipment since 1911. From 1911 to 1973, the plant generated wastes were disposed of onsite by burying the waste in shallow (4 to 10 feet) trenches. The waste consisted of solvents, paint sludges, heat treating cyanide, heat treating sludges, petroleum distillates, and foundry sand. Some of the waste was burned on a regular basis after placement. A 20-acre area has been identified as the disposal area. The primary contaminants are metals (arsenic, cadmium, chromium, and lead) and semi- volatile polynuclear aromatic hydrocarbons (PAHs). Approximately 90 percent of the landfill area are covered with buildings or pavement. The land use of the area surrounding the site is residential. In addition, the City of Ottumwa drinking water primary intake is located 1,000 feet upstream of the site on the Des Moines River, and a secondary source is located 500 feet down gradient from the site on Black Lake. Actions: The site was listed on the National Priorities List (NPL) in February 1990. A Record of Decision (ROD) was signed in September 1991. The baseline risk assessment calculated a direct contact risk for children, but found that ground water, surface water, and sediments do not pose a significant risk to human health or the environment. The remedy selected included continued monitoring of ground water and surface water, maintenance of the 8-foot chain-link fence topped with barbed wire, and deed restrictions to limit site access and future development of the site for residential uses. A 5-year review is planned because wastes are left onsite. 5O9 ------- Page Intentionally Blank 510 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Johns' Sludge Pond, Region 7 Wichita, Kansas Status: Remedial construction activities have been completed by the City of Wichita. Semiannual ground-water monitoring, a security fence, deed restrictions, and 5-year reviews will ensure the remedy remains protective of human health and the environment. Results and Benefits: The selected remedy has eliminated the threat to human health and the environment by neutralizing and containing the contaminated sludge. Ground-water monitoring, a security fence, deed restrictions, and 5-year reviews will ensure that the selected remedy remains effective. Future contamination of the surrounding soils, surface water, and ground water has also been prevented. Background: Johns' Sludge Pond was a 1 /2-acre site located in the northern part of Wichita, Kansas. From 1951 to 1970, Super Refined Oil recycled waste oil and disposed of an estimated 7,000 cubic yards of oily sludge into an unlined pond. The sludge and the water on top of the sludge were very acidic (pH values as low as 1) and contained substantial amounts of lead and pofychlorinated biphenyls (PCBs). The site was the source of numerous environmental problems. The pond would periodically overflow during times of heavy rainfall, releasing its contents to the nearby surface waters. Occasionally, the pond would catch fire and release large volumes of smoke. In the 1970s, the City of Wichita condemned a portion of the site in order to use the land as a drainage ditch along an adjacent highway. After a series of samples revealed that the sludge was contaminated, EPA placed the site on the National Priorities List (NPL) in 1983. Because the Super Refined Oil Company had filed for bankruptcy by that time, the City of Wichita was named a Potentially Responsible Party (PRP) as an owner of part of the site and was required to submit a removal response plan to remediate the site. The area surrounding the Johns' Sludge Pond site is sparsely populated, but heavily industrialized. Surface water from the site drains into Chisholm Creek and eventually flows into the Arkansas River. Approximately 3,000 people live within 3 miles of the site. Private wells in the area are used for irrigation and process water. Fishing takes place in a borrow pit adjacent to the site. Actions: Remedial actions included: excavating and neutralizing the contaminated sludge with cement kiln dust; installing a clay soil liner beneath the disposal cell; redepositing the treated sludge in the lined disposal cell; placing a compacted clay cap on the sidewalls of the disposal cell and on top of the sludge; planting a natural grass vegetative cover on top of the cap; fencing the site and posting warning signs; and placing deed restrictions on the use of the ------- Johns* Sludge Pond, Region 7 (Continued) land. The City of Wichita began remediation activities in 1985 and were completed in 1986. Semiannual monitoring of wells, surface water and sediments, as well as 5-year reviews, will be conducted to ensure the protectiveness of the remedial actions. 512 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET La Bounty Site, Region 7 Charles City, Iowa Status: Remedial construction activities have been completed. Ground-water and surface water monitoring, as well as site maintenance, is still ongoing. The site is currently a closed landfill located in the floodplain of the Cedar River. Results and Benefits: The selected remedy has eliminated the threat to human health and the environment by containing and capping the contaminated sludge. Construction of on upgradient diversion wall and the installation of a 24-well ground- water monitoring system have prevented the leaching of ground water into nearby surface water streams. Future contamination of the surrounding soils, surface water, and ground water has also been prevented. Background: The La Bounty Site covers an 8-1/2 acre area on the Cedar River flood plain. From 1953 to 1977, the owner, Salsbury Laboratories, disposed of over 6.4 million cubic feet of livestock pharmaceutical wastes into an existing onsite burrow pit. Investigations by EPA and the Iowa Department of Environmental Quality in 1977 and 1978 revealed that leachate from the pit contained volatile organic compounds (VOCs) and metals and that this leachate was contaminating ground water that entered the Cedar River. The site was closed in 1977. From 1979 to 1980, a 24-well ground-water monitoring system was installed, and a cap made of clay, soil, and vegetative cover was constructed over the pit. For the next 2 years, data from the ground-water monitoring system indicated that the cap was not effectively reducing pollutant leaching where wastes were below the water table. The site was placed on the National Priorities List (NPL) in 1983. The area surrounding the La Bounty Site is primarily light industrial and residential. Approximately 10,000 people live within 3 miles of the site. The surrounding area uses the ground water from the adjacent aquifer for drinking water supplies. Actions: The capping of the waste pit effectively reduced the leaching of pollutants located above the water table. Remedial activities, therefore, focused on preventing ground water contamination from wastes below the water table. Remedial activities consisted of: constructing a ground-water diversion wall upgradient of the sludge pit; installing three ground-water monitoring wells to sample the lower Cedar Valley Formation; and installing three pairs of wells to monitor the effectiveness of the diversion wall. Remedial construction activities were completed in 1986. Salsbury will continue to sample the monitoring wels and the Cedar River, and conduct site maintenance to ensure the effectiveness of the completed actions. 513 ------- Page Intentionally Blank 514 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Lawrence Todtz Farm, Region 7 Clinton County, Iowa Status: All cleanup remedial activities were completed in late 1991. Monitoring of the impoundment and municipal landfill will continue to ensure the long-term effectiveness of the cleanup activities. The fenced site is currently a closed landfill. Results and Benefits: The installation of an alternate water supply has eliminated the potential for exposure to contaminated soil and ground water at the Lawrence Todtz Farm site. This included drilling new well supplies for three area residences and constructing a soil cover over the impoundment area. The most recent tax assessments show that the previously affected 12 acres is now part of a 39- acre parcel of land still owned by the Todtz family. Background: In 1958, Lewis and Lynn Todtz purchased a 120- acre farm in the Clinton County countryside, just 1.25 miles to the west of Camanche, Iowa. One year later, the Todtzs agreed to lease 12 acres of the property to a sand and gravel mining operation. When the mining ceased in 1969, the area was leased once more to private operators for landfilling. From 1971 to 1975, municipal solid wastes from the City of Comanche were disposed of on the site. In 1971, the landfill operators subleased 2.5 acres of the mining pit area, where an industrial waste impoundment was constructed and operated to process wastes from a cellophane plant in Clinton, Iowa. Approximately 4,300 tons of wet-end cellophane process wastes that included strong acids and bases, alcohols, paints, and plasticizers were deposited there. The impoundment was used from 1972 to 1975. In closing the impoundment, the Potentially Responsible Party (PRP) used a 2-foot-thick clay cover with an overlay of top soil as a cap. One hundred people live within 1 mile of the site, including 10 farmhouses with private wells for drinking water (located within 1/4 mile) and 12 mobile homes. Ground-water samples from onsite monitoring wells detected sodium and heavy metals (which included arsenic, barium, and lead), as well as volatile organic compounds (VOCs) such as benzene and toluene. Only sodium was detected at levels above health guidelines for ground water collected from residential wells. Analyses of soil samples detected only arsenic at levels that may have posed adverse health effects. Because of the hydraulic connection of the nearby lakes to the shallow sand and gravel aquifer, problems at the site also had the potential to impact surface water. Actions: In the summer of 1989, the PRPs installed an alternate water supply. Under EPA's monitoring, they graded the site and installed a 2-foot soil cover over the impoundment. To ensure the long-term effectiveness of the cleanup activities, SIS ------- Lawrence Todtz Farm, Region 7 (Continued) monitoring of the impoundment and municipal landfill will continue. 516 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET North-U Drive Well Contamination, Region 7 Springfield, Missouri Status; As a result of remedial actions, five privately owned contaminated wells have been plugged and capped. Water is now supplied by the city. Monitoring of a nearby stream and spring continues to ensure that health-based safety levels are met. The site is in a residential area. Results and Benefits: As a result of continued monitoring and connection to the City of Springfield's municipal water suppty, area residents have been protected from contaminated ground water. Background: This site is located in a rural residential setting. Approximately 30 homes are within a 1-mile radius. This suburb is north of Springfield's city limits. The site is in an area of highly permeable aquifer formations. The wells that have been identified as contaminated are approximately 1,500 feet west of the Fulbright Spring, a major water source for the City of Springfield. Other National Priorities List (NPL) sites, the Pulbright/Sac River Landfills, are located to the north of this site. Remedial actions at these sites have also been completed. Actions: In 1983, the State received complaints that private drinking water weEs on North-U Drive were contaminated by organic chemicals. An initial investigation by the State indicated that seven separate wells at five locations had chemical tastes and odors. Analysis of the well water detected various combinations of volatile organic chemicals. The State conducted additional sampling in April 1984 to determine the areal extent of the contamination, the levels of contamination, and the presence of any other contaminants. The results from the State's study determined that the contamination was localized. EPA conducted a study to determine the source of the contamination. Apparently an abandoned gas station had been in the area, yet no underground storage tanks were ever removed. No source was ever confirmed. The State ordered five individually owned wells closed and capped. A monitoring system was put in place to monitor a nearby stream and spring for the presence of volatile organic compounds. Until the city water supply system was connected, the county brought in potable water for 20 to 30 households by water truck. S17 ------- Page Intentionally Blank 518 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Northwestern States Portland Cement Co., Region 7 Mason City, Iowa Status: Northwestern States Portland Cement Co. (NWSPCC) completed Remedial Action construction activities on October 26, 1993. Continuing support activities include treating contaminated ground water from the abandoned quarry onsite using an acid neutralization process, prior to discharging it to Calmus Creek, and conducting ongoing monitoring of both the local ground water and the treated discharge to surface water. While NWSPCC continues to produce cement at this facility, the portion of the facility that contains the site remains a closed, industrial landfill. Results and Benefits: The sources of site contamination have been controlled, thereby reducing the potential exposure to human health and the environment by the contaminated, caustic site media. Containment actions have been completed to meet soil and surface water remediation goals and to minimize the migration of contaminated water from the abandoned quarry to the ground water surrounding the site. The cement dust waste pile was capped to prevent rainwater from carrying leachate to the ground water. All contaminated water from the site is treated onsite using an acid neutralization process prior to being discharged to Calmus Creek; NWSPCC is conducting ongoing monitoring of ground water and treated discharge to the creek. The discharge to Calmus Creek from this facility now meets State effluent limitations, and the treated ground water meets the State ground- water action levels and the Safe Drinking Water Act of 1974 (SDWA) maximum contaminant level (MCLs). Background: The NWSPCC site occupies 150 acres of a 250- acre facility adjacent to Calmus Creek, north of Mason City, Iowa. NWSPCC has produced cement at the facility since 1908. NWSPCC mined limestone from the area known as the West Quarry until 1950, when it was abandoned. In 1969, NWSPCC began using the West Quarry for disposal of waste cement kiln dust (CKD). When disposal activities ceased in 1985, approximately 2-million tons of CKD had been disposed of in the quarry. In 1979, two seeps developed in the northeastern portion of the West Quarry. High pH water from the seeps flowed overland to Calmus Creek. In 1984, the State initiated a study of Calmus Creek and found the pH in the creek elevated two pH units downstream of the seep area. The State ordered NWSPCC to cease the discharge from the seep area, to stop CKD disposal in the West Quarry, and to conduct a hydrogeologic investigation. The major concern at the site was contamination of surface and ground water with elevated pH and suspended solids as a result of contact with the CKD. The surface water contamination was caused by water from the West Quarry entering Calmus Creek, raising the pH level and adversely impacting the K1Q ------- Northwestern States Portland Cement Co., Region 7 (Continued) aquatic habitat of the creek. Contaminated drainage system was constructed in the quarry, ground water was found within the CKD and in Dewatering wells were installed around the the bedrock underlying and adjacent to the perimeter to lower the surrounding water table quarry. The degree of contamination lessened to prevent contamination of ground water. The with depth. Direct exposure to the high pH water cement Mln dust waste pile was capped with a in the West Quarry is considered a threat to low permeability clay cap. Water removed from human health and the environment. the West Quarry, as well as any extracted ground water that is contaminated, is treated Actions: onsite using an acid neutralization process prior to discharging it to Calmus Creek. NWSPCC is The Remedial Action Plan for the site conducting ongoing monitoring of ground water recommended waste isolation. Water from the and the treated discharge to Calmus Creek. West Quarry was drained, and a permanent 520 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Solid State Circuits, Inc., Region 7 Republic, Missouri Status: Construction activities were completed at the Solid State Circuits (SSG), Inc. site in fall of 1993, However, the remedy consists of a long term ground-water extraction system that is expected to operate for the next 40 to 50 years. The site is secured by a 6-foot chain-link fence. Results and Benefits: Surface cleanup goals have been achieved and risks to human health have been reduced by removing the source of contamination. The selected remedy will eliminate the risk to human health by remediating the aquifer to drinking water standards. Background; The Solid State Circuits site is located in Republic, Greene County, Missouri, approximately 12 miles southwest of Springfield, Missouri. The site consists of a 21,000-square- foot fenced lot The uses of the area surrounding the site include urban residential housing, warehouses, and light industry. The site has been used for industrial and manufacturing purposes by a number of businesses. Solid State Circuits used the site from 1968 to 1973 to manufacture printed circuit boards. In 1973, SSC moved its manufacturing operations to Springfield, Missouri, The building was demolished following a fire in 1979. In 1982, trichloroethylene (TCE) was detected to a municipal water suppry well, located 500 feet south of the site. In April 1983, an investigation determined that the site was the source of TCE in the ground water. TCE was used as a cleaning solvent and as a copper residue stripper by Solid State Circuits, and allegedly barrels of solvent were stored with plating waste in the building basement, which contained a well that had not been plugged. After the fire, the basement was filled with building debris. Actions: Actions at this site include immediate response actions and a long-term remedial solution. In 1984, an immediate response action was undertaken to remove the suspected source of the contamination. The contaminated soils and debris were excavated and monitoring wells were installed. The well in the basement was plugged, and the basement was sealed with gravel and soil cover to bring it up to grade. Following the response action, a remedial investigation and feasibility study (RI/FS) determined that the source had been removed and only ground water needed to be addressed in the remedial design/remedial action. Construction of extraction wells and air strippers began in January 1993 and was completed in September 1993. Extracted ground water is discharged, either directly for TCE concentrations less than 200 ppb or after onsite air stripping for TCE concentrations greater than 200 ppb, to the city sewer system for treatment at the water treatment plant It is estimated that ground-water pumping will continue for 40 to 50 years. 521 ------- Page Intentionally Blank 522 ------- Su SITE REMOVAL ACTION SITE FACT SHEET Baldwin Park, Region 7 Aurora, Missouri Status: The Baldwin Park site, now a city-owned municipal park, has been cleaned and capped in accordance with State and Federal regulations. All planned activities under the Superfund Removal Program have been completed. Although soil and other contaminated materials remain buried onsite, the surface has been rendered safe for limited re-use under control and supervision of the city. Results and Benefits: The site of an abandoned lead mine and refuse dump has been converted into a 170-acre municipal park, providing recreational opportunities to residents in and around Aurora, population 6,436 (1986). The park includes facilities for picnics, nature trails, and playground equipment. The cleanup reduced the potential for exposure to dioxin and other contaminants present in the soil. The ground water was found to be uncontaminated, and protective measures have been taken to prevent its contamination in the future. Background: This site was once used for strip mining lead ore. When mining operations ceased, the open pits were used as a dump for municipal trash from Aurora and surrounding communities. Reports indicated that abandoned drums containing sludge were discovered at this site sometime in the mid-1960s and were soon thereafter removed offsite; however, the surrounding soil remained heavily contaminated. Ground-water contamination was not a major concern at this site because drinking water supplies for the community comes from a well 1.5 miles away and 1,200 feet deep. The nearest residences are located approximately 1/4 mile from the site, but population density surrounding the site is low. Access to the city park now occupying the site is unrestricted. Since the opening of the park in the early 1970s, there has been little evidence of disturbance of soil or buried wastes as a result of activities there. Actions: Baldwin Park was first investigated in October 1983. Actual sampling began in October 1984. Soil sampling results indicated the presence of dioxins at levels as high as 743 parts per billion (ppb). Hexachlorophene was also found, but heavy metal contamination from the mining operation was not considered to be a concern. In November 1984, sampling was conducted to determine the extent of contamination in the soil and ground water. In April 1986, 30 piezometers and 8 monitoring wells were installed to determine the ground-water flow and potential for migration. In November and December of 1987, a removal action called for the excavation and removal of 250 cubic yards of soil found to exceed 20 ppb of dioxin at the site. The excavated soil was incinerated offsite. Soils from areas showing dioxin surface contamination between 1 and 20 ppb were consolidated, covered, and capped. EPA minimized dioxin exposure in high traffic 523 ------- Baldwin Park, Region 7 (Continued) zones such as picnic table areas by choosing a cleanup target of less than 1 ppb. Slightly higher target levels were allowed in more remote wooded areas because the low frequency of pedestrian traffic would limit exposure. EPA monitored the ground water for 1 year to ensure that contamination was not migrating offsite. No detectible quantities of dioxin were found, and it was concluded that the ground water beneath the site had not been contaminated. The site area and the protective cap will be monitored and maintained by the City of Aurora. 524 ------- REGION EIGHT ------- Page Intentionally Blank ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Arsenic Trioxide Site, Region 8 Lidgerwood, North Dakota Status: As a result of remedial actions, an advanced water treatment system has been constructed and is in use. In the affected areas, institutional controls are being imposed on well use and drilling of new wells. Results and Benefits: By providing a more advanced water treatment system, the towns of Wyndmere and Lidgerwood, North Dakota, have a consistently safe water supply. The water supply improvements have increased the value of homes in the area. Background: The Arsenic Trioxide site consists of 20 townships in southeastern North Dakota, covering approximately 500 square miles of land. Shallow ground-water aquifers in this area were found to be contaminated with arsenic at levels that exceeded drinking water standards. Natural arsenic also exists in the area. Heavy grasshopper infestations in the 1930s resulted in large repeated applications of arsenic-based poisons such as arsenic trioxide. Excess poisons were buried near shallow aquifers, left in unmarked outbuildings, and hauled to open dumps. Actions: In the rural areas near Richland, individual water treatment units were installed in 116 private homes, and 5 residences were hooked up to a rural water supply system. Also, institutional controls on well use and drilling were imposed. EPA assisted the City of Lidgerwood with its efforts to improve the water treatment plant. KO-T ------- Page Intentionally Blank 528 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Libby Groundwater Contamination, Region 8 Libby, Lincoln County, Montana Status: Construction activities for this site have been completed, and remedial systems are operating as designed. However, a long-term biorestoration program is continuing to address soil and ground-water contamination. The site is currently being used as a plywood and lumber mill. Results and Benefits: The risk to human health has been eliminated by providing residents with a public drinking water supply and sealing affected wells. Future exposures are prevented by deed restrictions and a city ordinance that prevents the installation of new drinking water and irrigation wells. Source contamination is being remediated by biological restoration. Monitoring is continuing to assure that the contamination is being reduced. Background: The Libby Groundwater Contamination site is located in northwest Montana adjacent to Libby in Lincoln County. The site is currently operating as a plywood and lumber mill and is adjacent to residential areas. The site was owned by St. Regis Corporation until 1983 when Champion International Corporation bought St Regis and assumed the obligations associated with the site. Stimpson Lumber Co. purchased the mill in early 1994; however, Champion personnel remaining at the site continue to operate and monitor the soil and ground-water remedies. The site operated as a wood treatment facility from 1946 to 1969. The disposal and spilling of wood treatment chemicals and sludges onsite at several different locations caused soil and ground-water contamination. The ground-water contamination was discovered in 1979 in a private well within the city limits. Subsequent investigations determined that the contaminated soil was within the confines of the facility. However, ground-water contamination was detected in both the upper and lower aquifers and has spread to nearby private wells. Contaminants of concern include pentachlorophenol, polycyclic aromatic hydrocarbons (PAHs), and to a lesser extent dioxins and furans. Actions: In 1985, the Champion International Corporation began a water distribution plan whereby residents with affected wells ceased using the wells and began using the public water supply system operated by the City of Libby. Champion also sealed and locked the affected wells. A city ordinance that prohibits the installation of new wells for drinking water of irrigation was promulgated. In 1988, a Record of Decision (ROD) was signed that selected final cleanup methods for the affected media including the soils/source areas and the upper aquifer. In addition, an investigation regarding the effectiveness of biorestoration for the lower aquifer was mandated. In 1993, the investigation was completed, and an explanation of significant differences documenting the selection of KOO ------- Libby Grotmdwater Contamination, Region 8 (Continued) institutional controls and long-term monitoring as the final remedy for the lower aquifer was published. The contaminated soils at the facility were addressed by excavation and consolidation into the existing waste pit. At the waste pit, the soils underwent a two-step enhanced biodegradation process. Further biological degradation occurred in two onsite lined land treatment units (LTUs). When treatment is complete, the LTUs will be capped with low permeability materials and will serve as a final disposition location. Ground water is being addressed by a combination of ex situ and in situ techniques. A bacteria rich ground-water injection and extraction system is being used to remove and degrade contaminants adsorbed to soil matrices and dissolved in the ground water. Recovery wells are being used to extract highly contaminated ground water, which is treated in a fixed film bioreactor prior to reinjection through a rock percolation bed. The upper aquifer is being restored using in situ enhanced biological degradation system. Contamination in the lower aquifer will be addressed by institutional controls on ground-water use and long-term monitoring. 530 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Marshall Region 8 Boulder County, Colorado Status: All site construction activities have been completed. Landfill improvements included: regrading; revegetation to minimize infiltration of precipitation; installation of perimeter ditches; and construction of a french drain and fences to minimize further environmental and public health impacts from the site. Regrading remedial activities were completed on the northern part of the Marshall Landfill on November 17, 1989. Grading and vegetation of the southern part of the Marshall Landfill and the Boulder Landfill were completed in early fall 1993. A collection trench and an array of ground-water extraction wells were constructed to capture shallow ground water along the southern and eastern site boundaries. The existing lagoons were drained, and the liquid was transferred to the treatment system. The site is currently a closed landfill; however, methane recovery is ongoing. Results and Benefits: Protective measures have been taken to ensure the safety of the local drinking water supply, and a fence has been constructed to restrict access and prevent further degradation of site. In 1984 as an emergency response action, a 60- inch pressurized pipeline was installed to protect local drinking water supplies by transporting the water across the inactive Marshall Landfill. Protection from future degradation of ground water and surface water has been achieved. An environmental monitoring program addressing surface and ground water was implemented to assure protection of public health. Extraction wells were installed, and a water treatment system was commissioned in the spring of 1993. Background: This site is located in southeastern Boulder County, east of the town of Marshall. It occupies 160 acres 4 miles south of Colorado Highway 170 and is bounded on the east by South 66th Street. Marshall Reservoir is upstream of the site, about 2,000 feet to the west. The site is divided into two adjacent landfills, each approximately 80 acres in size. Between 1965 and 1974, the Marshall Landfill, situated to the north, accepted municipal waste, unstabilized sewage sludge, and many unknown and potentially hazardous wastes. In 1974, the Marshall Landfill was abandoned. The Boulder Landfill, an 80-acre section to the south, was operated from 1974 to January 1992. Septic wastes, and possibly liquid industrial wastes, were also disposed of on site in two septic ponds. These ponds are now closed. In 1981, landfill leachate was observed seeping into the community ditch that carries drinking water from nearby Marshall Lake to the City of Louisville and serves as irrigation water for a reservoir and irrigation company. Volatile organic compounds (VOCs) and inorganic chemicals have been detected in the ground water both on and off site and in surface waters on the site. Actions: Due to the release of contamination to irrigation and drinking water, the site was placed on the •en ------- Marshall T/andll11t Region 8 (Continued) National Priorities List (NPL) in September 1983, and the Record of Decision (ROD) was issued on September 26,1986. The site was addressed in two stages: immediate actions and a long- term remedial phase focusing on cleanup of ground water and surface water both on and off site. Treatment of contaminated ground water consists of equalization/sedimentation, air stripping, liquid-phase carbon adsorption, breakpoint chlorination for ammonia removal, and dechlorination. The discharge from the french drain has also been redirected to the treatment system. 532 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Mystery Bridge Road, Region 8 Natrona County, Wyoming Status: All removal actions have been completed at this site. Ongoing remedial actions include ground- water pump and treatment, and monitoring. Portions of the site are currently used for chemical manufacturing, commercial trucking, and residential purposes. Results and Benefits: Immediate action by the State and the EPA Removal Program provided safe drinking water for residents. An assessment by the Agency for Toxic Substances and Disease Registry concluded that if action were not taken within 1 year, individuals drinking the contaminated water would face an increased lifetime cancer risk. The removal actions at the facilities onsite have prevented further migration of contaminants from source areas into residents' ground-water supplies, while long-term remedial actions are eliminating the sources. The site has also been used to demonstrate an innovative technology, air sparging, for cleaning up ground- water contamination. Background: This site, located 1 mile east of Evansville, Wyoming, includes two residential subdivisions (Brookhurst and Mystery Bridge) and an industrial area to the south where certain hazardous materials have been used. Two nearby industries have been found to be responsible for the site's contamination. One company uses mobile mounted pumps, tanks, and other associated equipment to perform oil and gas production enhancement services for the oil and gas industries. This company also performs its own truck repair and stores the solvents onsite. The other industry has operated a natural gas fractionation, compression, cleaning, odorizing, and transmission plant at the site since 1965. Both are currently active. The site is bordered on the north by the North Platte River, on the west by a refining company, and by a highway to the south. Sections of the Mystery Bridge subdivision extend along the eastern perimeter. Within a 1-mile radius, the total work daytime population is approximately 1,000 people. The population within a 3-mile radius is approximately 3,000 people, which includes 2,160 residents in the community of Evansville. Past and present surface and subsurface storage units and other structures at the site include several underground and aboveground storage tanks, abandoned drums, an unlined waste pond, and a concrete-lined waste pond. These structures have released contaminants from the active industrial facilities at the site. Actions: In August 1986, residents complained of poor air and water quality in and around the subdivisions. As a result, the County, State, and EPA began an investigation of the site. Results of early sampling indicated organic compounds in residential wells and tap water. Residents were advised not to use their well water for drinking or food preparation. In the same year, the State began providing bottled water to residents. Under the Superfund ------- Mystery Bridge Road, Region 8 (Continued) Removal Program, EPA took over the lead responsibility for ensuring the health and safety of the residents by providing bottled water, installing monitoring wells, and conducting sampling programs to further investigate the release of contaminants and to gather information to evaluate the need for further removal action. In 1987, EPA began an expanded site investigation (ESI). The ESI delineated two plumes of ground-water contamination and several volatile halogenated organic (VHO) soil contaminants in the ground water and soil near an abandoned chlorinated sump area. As part of the cleanup activities, this site was divided into two operable units (OUs). OU1 involves the cleanup of the two distinct ground-water plumes, and OU2 will address the cleanup of any remaining soil contamination that may be a source of ground-water contamination. Removal activities began in January 1988 and included the excavation and offsite landfilling of approximately 440 cubic yards of VHO- contaminated surface soEs from the chlorinated sump area. A soil vapor extraction (SVE) system was used to remove over 300 pounds of contaminants from the soil. Almost 6,000 pounds of solvents were also removed from soils in a toluene storage area using an SVE system. In November 1989, removal actions designed to remove BTEX (benzene, toluene, ethylbenzene, and xylene) contaminants from the ground water and soil beneath an onsite industrial facility began. Pursuant to this removal action, volatile BTEX contaminants are being removed from the soil using the SVE system. Ground water is being cleaned using an air-stripping tower, in which ground water is extracted and air is used to evaporate away the more volatile compounds such as BTEX. Both the SVE system and the air-stripping tower will continue to be used until cleanup objectives have been achieved. Through long-term remedial actions, a combined ground-water pump and treat and soil vapor extraction system has recovered approximately 10,828 gallons of BTEX contaminants from the soil and ground water as of November 1991. This product has been recycled and sold to vendors. In November 1992, a pilot test of a relatively new technology known as air sparging was conducted. Test results confirmed its usefulness in removing BTEX contamination from the ground water and subsurface soils above the water table. Air sparging involves injecting compressed air into an aquifer using specially constructed wells. The injected air causes vapor pressure changes that help vaporize any remaining BTEX compounds in the ground water and in subsurface soils. In addition, by increasing the availability of oxygen in the soils, the system is expected to promote natural bioremediation by increasing the growth of naturally occurring bacteria. These bacteria consume the contaminants, breaking them down into simpler, nontoxic substances such as carbon dioxide and water. 534 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Rose Park Sludge Pit, Region 8 Salt Lake City, Utah Status: Remedial construction activities have been completed. Ground-water monitoring is still ongoing and will continue until the year 2013. Institutional controls and physical barriers have been implemented to prevent damage to the containment structure. The site is currently used as park with playgrounds and recreation fields. Results and Benefits: The selected remedy has eliminated the threat to human health and the environment by containing and capping the contaminated sludge and preventing ground water and surface water infiltration. Future contamination of the surrounding soils and ground water has also been prevented. Background: The Rose Park Sludge Pit is approximately 2 acres and is located in a Salt Lake City park. The park and the surrounding area have been used by oil refineries and industrial facilities since before 1900. From the early 1920s to 1957, the Utah Oil and Refining Company, predecessors of Amoco Oil Company, used the site to place refinery sludges into unlined storage pits. In response to citizen's complaints against dumping, Salt Lake City purchased the land in 1957, removed 40-100 truck loads of sludge, and covered the sludge with a soil cap in 1960. The area was then incorporated into the Rose Park. In 1976, during park development grading operations, a bull dozer broke through the cover and re-exposed the sludge. Field investigations were conducted between 1979 and 1981 to determine the boundaries of the sludge pits and to determine the extent of ground-water contamination. The site was placed on the National Priorities List (NPL) in December 1982. Area surrounding the Rose Park Sludge Pit is industrial, residential, and recreational. Approximately 150,000 people reside in Salt Lake City. Nearby residents are connected to the city water supply. Actions: Remedial activities consisted of: constructing a bentonite slurry wall around the sludge pit; capping the pit with a sand layer, a fabric membrane, a clay layer, and covering the cap with a vegetated soil layer; installing ground monitoring wells; establishing a 30-year ground monitoring plan; installing a traffic barrier and signs indicating the containment structure location; maintaining, supervising, and caring for the site; and implementing deed restrictions. Remedial construction activities were completed in 1985. EPA started the ground-water monitoring in 1983. In 1984, Salt Lake City assumed responsibility for the ground-water monitoring program. In 1989, it was determined that the prior samples were of marginal to unacceptable quality and that the then present ground-water monitoring program was inadequate to determine the effectiveness of the remedy. In January 1990, Amoco Oil Company submitted a plan to monitor ground-water flow around the containment area. Twelve new monitoring wells ------- Rose Park Sludge Pit, Region 8 (Continued) were drilled and completed in August 1990, and an additional eight monitoring wells were installed in 1992. A 5-year review conducted in 1992 concluded that the remedy remains protective of human health and the environment. Ground-water monitoring will continue until 2013. 536 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Whitewood Creek, Region 8 Lawrence, Mead, and Butte Counties, South Dakota Status: All prescribed cleanup remedial actions for the 18-mile floodplain were completed in 1992, 2 years after the remedy was selected. Because of the remaining contamination, land use and access restrictions have been implemented. Ground-water well installation restrictions have been implemented and will continue to be enforced. The site is currently vacant and located in a floodplain. Results and Benefits: Through the careful coordination between EPA, the South Dakota Department of Water and Natural Resources, and the Potentially Responsible Party (PRP) in removing contaminated soil, capping the site, and instituting controls on the use of the area, the threats posed by the site have been substantially reduced. The PRP has agreed to pay for all the past, present, and future costs incurred by the cleanup. Because of the size and duration of the contamination, the main protection to the public is through institutional controls. To remove the threat to the public, the PRP has begun to buy the affected acreage. This removes the area from public and releases the former owners from liability related to the arsenic- contaminated land. Background: The Whitewood Creek site is a mine tailings deposit area near the town of Whitewood in Lawrence, Mead, and Butte counties of South Dakota. Situated along 18 miles of Whitewood Creek, the 2,018-acre site consists of farmland, woodland, and residential homes. From 1877 to 1977, arsenic-rich tailings from mining and milling operations were discharged directly into Whitewood Creek. Approximately 22-million tons of tailings, which consisted of finely ground rock and residual metallic and nonmetallic compounds, were deposited downstream from the mine. Surface water and soils were found to contain cyanide and heavy metals including arsenic, cadmium, chromium, lead, and selenium. Heavy metals were also found in the ground water. In 1974 and 1975, 50 Holstein cattle from an adjacent dairy farm died of arsenic poisoning, caused by eating corn contaminated with mining wastes. Actions: In 1982, EPA, the South Dakota Department of Water and Natural Resources, and the PRP entered into an agreement to conduct a study of the site. The study investigated the quality of surface waters, ground waters, soils, sediments, and vegetation in the site area. The Record of Decision (ROD), finalized to 1990, called for the removal and/or covering of tailing- contaminated soils in existing areas and the implementation of institutional controls to limit access to the tailings and ground water. Over 25 houses were found to have high levels of arsenic contamination. Eleven homes were physically moved to safer locations or voluntarily demolished. ------- Page Intentionally Blank 538 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Woodbury Chemical Company, Region 8 Commerce City, Colorado Status: Remedial construction activities have been completed. Hazardous substances have been reduced to levels that allow unrestricted access. A portion of the site is owned by a railroad and used for steel storage. Results and Benefits: The selected remedy has eliminated the threat to human health and the environment by removing the contaminated soil and sediments. Future contamination of the surrounding soils, surface water, and ground water has also been prevented. Background: The Woodbury Chemical Company site was a 5- acre pesticide formulation plant that operated from the early 1950s to 1965. In 1965, the plant burned to the ground. The resulting fire debris, rubble, contaminated soils, and 1,500 pounds of water-soaked bags of pesticides were moved to an adjacent 2.2-acre lot The plant was rebuilt on the original location and continued operations until 1971. In September 1983, the site was placed on the National Priorities List (NPL). The Woodbury Chemical Company site is surrounded by industry. The residential and commercial population within 1 mile of the site numbers approximately 3,000. Actions: Remedial actions at the site initially involved; excavating and incinerating the soil and rubble with a total pesticide concentration above 100 parts per million, then disposing of the ashes in an offsite RCRA Subtitle C landfill; excavating and disposing of soil and rubble between 3 and 100 parts per million in an offsite RCRA Subtitle C landfill; backfilling the excavated areas with clean, impermeable fill material; and regrading and revegetating the excavated areas. These remedial activities were later revised due to the unforeseen spread of the contamination to additional areas west of the 2.2-acre storage lot. The revised remedy included: excavating and incinerating offsite all affected soils and rubble exceeding a total concentration of 1,000 parts per million and any soil/debris containing 2,3,7,8-PCDD above EPA action levels, then disposing of the ashes in an offsite RCRA Subtitle C landfill; excavating and disposing of all other contaminated soil and debris in a RCRA Subtitle C landfill; and regrading the remaining onsite soil, backfilling excavated areas with clean soil, as necessary, and then revegetating the site. Remedial actions were completed in May 1992. ------- Page Intentionally Blank 540 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Lixnon Elevator Site, Region 8 Limon, Colorado Status: All removal actions at this site have been completed. There are no buildings on the site, and the site is not in use. Results and Benefits: As a result of the quick response by the EPA Emergency Response Branch (ERB), exposure to hazardous and lethal substances at this site was avoided, and the potential for exposure to hazardous substances removed. An area immediately adjacent to the site is used as a public park. Background: After a tornado caused major damage to Limon in the eastern plains of Colorado on June 6, 1990, it was discovered that an abandoned grain elevator complex had been damaged and that various pesticides stored there had been released. Numerous pesticide containers were found in the building debris and in the surrounding area, some of which held pesticides that had been restricted or whose registration had been cancelled. Included with the wastes were approximately 100 canisters of aluminum phosphide, which releases phosphine gas when subjected to water, and three compressed gas cylinders containing the agricultural fumigant chloropicrin, a "war gas" that causes vomiting and acute pulmonary distress. Actions: On June 9, 1990, the ERB, an Emergency Response Cleanup Services (ERCS) contractor, and Technical Assistance Team personnel arrived at the site. ERCS began staging and inventorying materials found. The shock- sensitive chloropicrin cylinders were packed and moved to a large gravel pit for detonation. After all three cylinders were successfully detonated, the search for and removal of drums from the collapsed structure resumed. Two drums blown offsite by the tornado were returned to the site. Because this action was conducted during the height of the disaster response to the tornado damage, the site's accessibility was temporarily restricted to safeguard the public from accidental contact with contaminants. Overpacking of chemicals continued the next day. During the removal of contaminated structure flooring, a concrete pit filled with water was discovered. Results of the water sampling showed that it was contaminated with pesticides, BHC, methoxychlor, low levels of mercury, and toxaphene. Sampling results of the soil beneath the contaminated flooring showed mercury, DDD, and DDT contamination. Over the course of the next 2 weeks, contaminated water was pumped from the structures, and contaminated soil was excavated and staged for removal. Approximately 32,000 gallons of contaminated water were shipped offsite for carbon filtration and evaporation. An additional 5,000 gallons of water contaminated with hydrogen sulfide had to be solidified and placed in an offsite landfill along with 43 cubic yards of contaminated soil and debris. Overpacked products were shipped offsite for incineration. All excavated areas were backfilled with clean soil. ------- Page Intentionally Blank 542 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Montana Pole and Treating, Region 8 Butte, Montana Status: Two significant removal actions have been completed at this site. Investigations to determine the nature and extent of the remaining residual contamination are ongoing. A remedial investigation and feasibility study for the site is nearly complete and long-term remedial actions are expected to begin in 1994. This site's activities have been closely coordinated with the ongoing remedial activities at the larger Silver Bow Creek/Butte Area Superfund site. Results and Benefits: EPA and the State have previously documented contamination in Silver Bow Creek and Clark Fork River for approximately 120 miles downstream. Removing the source of soil contamination has prevented further degradation to the surface waters of Silver Bow Creek. Additional actions at Montana Pole and Treating have safeguarded the nearby residential areas and ground water by constructing an onsite water treatment plant to treat extracted ground water, and restricting access to the site. Background: This site is an abandoned 40-acre wood treatment facility in Butte. From 1946 to 1983, the facility preserved utility poles, posts, and bridge timbers with pentachlorophenol (PCP). Hazardous substances from the pole-treating operations were discharged into a ditch adjacent to the plant that ran towards Silver Bow Creek. Montana Pole is in a residential/ industrial area with the nearest residence 100 yards from the site. The nearest private well is 1/5-mile downgradient from the site. Action: EPA completed a cleanup action in late 1988 to halt the seepage of PCP and diesel fuel into Silver Bow Creek. Contaminated soils were excavated and stored onsite. The site has been fenced, and monitoring wells and oil recovery trenches were installed. A temporary ground-water oil separation treatment system was put into operation to separate PCP-contaminated oil from the ground water. The treated water was pumped upgradient to infiltration galleries. In early 1991, EPA conducted a cleanup of oil- contaminated soil, following the release of 30,000 gallons of contaminated oil from a holding tank. Approximately 21,000 gallons of oil have been intercepted and are temporarily stored onsite, pending plans for offsite disposal. Also onsite are five pole barns containing approximately 10,000 cubic yards of contaminated soil. Tanks, vats, pipes, and equipment were cut up and stored in the pole barns. Forty 55-gallon drums of PCP- contaminated sludges are onsite. In July 1992, EPA initiated a removal action restart. During this action, a subsurface synthetic wall was installed to prevent PCP/fuel from entering Silver Bow Creek. Ground-water recovery wells were installed to recover the PCP/ fuel phase from the aqueous phase. A water ------- Montana Pole and Treating, Region 8 (Continued) treatment plant was built to treat the contaminated ground water. After treatment, the water will be discharged to SUver Bow Creek. The water treatment plant began operation in January 1993. 544 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Rocky Boy Post and Pole, Region 8 Rocky Boy Indian Reservation, Box Elder, Montana Status: Removal actions have been completed at this site. The site is no longer used by the tribal members for treating fence posts. It is fenced and inactive, except for a maintenance shed used by the tribal members. Results and Benefits: As a result of the actions performed by the EPA Removal Program, threats of exposure to cancer- causing hazardous materials have been removed. All sources of contamination have been incinerated and rendered inert. The site may be reused for agriculture or light industrial purposes, according to an EPA source. An adjacent tributary which leads to a reservoir used by the Tribe for drinking water and food sources has been spared pentachlorophenol (PCP)/dioxin contamination in the soil or debris. The potential for accidental contact with carcinogenic materials has been removed. Background: This 2-acre site is located on Trust Lands within the Rocky Boy Indian Reservation approximately 90 miles northeast of Great Falls, Montana. The plant was functioning for approximately 15 years, but ceased operations in 1986. Both a telephone-pole treater and a fence-pole treater were in operation at the site. The telephone pole treater leaked its entire contents approximately 10 to 12 years ago and has not been used since. Treated fence posts were the primary product, however, and PCP was the primary chemical used as a wood preservative. PCP was transported to the site in 55-gallon drums, dumped into treating vats, and mixed with diesel fuel, the carrier fluid. Liquids in the fence-post treating vats contained high concentrations of a dioxin compound. The treating process was to dip the wood in the vats, then place the dipped product on the ground to drip-dry, releasing hazardous wastes to the environment. During initial sampling, EPA discovered that fence posts had been treated recently. Tribe members were continuing to use chemical treatment to preserve wood for their personal use, despite the advisories by EPA. Tribe members also came onsite frequently to fill propane bottles from a large tank located within site boundaries. EPA made repeated requests that a fence be erected and warning signs posted around the site. Actions: Through a coordinated effort by the EPA Emergency Response Branch (ERB) and Technical Assistance Team (TAT), the site was investigated and sampled. Results of samples taken showed that liquids in the treating vats and soils in the drip area were contaminated with dioxin wastes, polycyclic aromatic hydrocarbons (PAHs), and PCP. Four drums were found onsite that contained mainly PCP and PAHs. The areas of concern at the site were the fence-post treating vats, the four drums, and the drip area. EPA dehalogenated dioxin contamination in the vats, drums, and soils. Dehalogenation of dioxin is the chemical process of removing a chlorine atom and replacing it with a hydroxyl atom, thus forming an alcohol and eliminating the toxic ------- Rocky Boy Post and Pole, Region 8 (Continued) nature of the dioxin. A lined containment pit from the incineration was buried onsite and was constructed to dehalogenate the soil slurry, covered with clean fill. The treating vats were The liquids were treated in the vats, cleaned, and the residue was treated by Approximately 750 gallons of liquids and 200 incineration, as were all residues from the cubic yards of soil were dehalogenated. The cleaning operations. The remainder of the site materials generated from the dehalogenation debris not contaminated was cleaned out and process were then incinerated onsite, and ash disposed of offsite. 546 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Silver Bow Creek/Butte Area Site, Region 8 Butte and Walkerville, Montana Status: Extensive removal actions have already been conducted at this site; however, given the size and extent of contamination, further removal actions are likely. Long-term remedial actions are currently ongoing. This site is one of four contamination areas known as the Clark-Fork Sites. The other three areas are the Milltown Reservoir, Anaconda Company Smelter, and Montana Pole and Treating, which are treated as separate sites on the National Priorities List (NPL). Results and Benefits: Through close coordination with the State and responsible parties, EPA has ensured that the removal actions to date have reduced the potential health threats due to heavy metal contamination in the surrounding communities by excavating the sources of contamination. EPA implemented an Expedited Response Action (ERA) to prevent discharge of contaminated mine waters into a nearby shallow aquifer and Silver Bow Creek in 1989. Extensive mine tailings contamination in river beds and widespread wind-blown particulate are being addressed by long-term remedial actions. Background: This site begins above Butte, near the Continental Divide, and extends westward along Silver Bow Creek and the Clark Fork River to the Milltown Reservoir. The site covers about 140 miles of stream and riparian habitat. Silver Bow Creek and the Clark Fork River were used as a conduit for mining, smelting, industrial, and municipal wastes for over 100 years. Vast mine tailings deposits can be found along the creek and river. These deposits have been dispersed over the entire flood plain and contain elevated levels of metals. Wind-blown particles, ground water, surface water, and soil have been contaminated with arsenic and metals including zinc, copper, iron, cadmium, mercury, and lead. The tailings dispersed along the creek and river have severely limited aquatic life forms and have caused fish kills in the river. Tailings deposits are found on the banks of the Silver Bow and Warm Springs Creeks as a result of mining activities during the 19th and 20th centuries. These tailings are high in metals, low in pH, and toxic to plants. In many places along Silver Bow Creek, evidence can be found of these tailings called slickens, which are bare areas of ground subject to severe wind and water erosion. Numerous studies are being performed along Silver Bow Creek to assess the streambank tailings revegetation potential by introducing hardy vegetation that has adapted to high heavy metal concentrations. EPA has determined that high concentrations of metal remaining in soils and drainage from the mine waste dumps still pose risks to the ground water and Silver Bow Creek. Actions to address these problems are currently being studied. To date, approximately 900,000 cubic yards of tailings and contaminated soils have been excavated, half has been removed offsite and the remaining portion consolidated and capped ------- Silver Bow Creek/Butte Area Site, Region 8 (Continued) onsite. Thirty-two residential yards have been excavated and refilled with clean soil, and sod has been laid; many more yards are pending the same treatment. Twenty-five waste rock dumps containing high heavy metal concentrations were either removed, or partially moved and capped in place. Approximately 1.7-million gallons of metal-contaminated water have been pumped to a nearby treatment plant since 1988. Actions: To make study and cleanup of contamination at this site more efficient, the site has been divided into several operable units (OUs). These OUs include Priority Soils, Mine Flooding, Active Mining and Milling, Non-Priority Soils, Warm Springs Ponds, Rocker, and Stream-Side Tailings. To date, four time-critical removal actions have been completed in Butte and Walkerville. Additionally, ongoing expedited response actions are underway to address the mine tailings and waste rock dumps. In the coming years, EPA has predicted that over 5.5 million cubic yards of tailing and contaminated soil will have to be removed, along with excavation of additional residential yards. Following is a brief summary of the removal actions that have occurred. 548 ------- Silver Bow Creek/Butte Area Site, Region 8 (Continued) Operable Unit Type of Activity Status Notes {Affected Medium) Priority Soils Walkerville Time-Critical Removal Completed 1988 Included removal of contaminated soils in 23 residential yards, removal or consolidation of waste rock dumps, placement of a stabilizing barrier, replacement with dean fill, and revegetation. Approximately 300,000 cubic yards of contaminated soil. Priority Soils Timber Butte Time-Critical Removal Completed 1989 Included removal of contaminated soils in two residential yards, consolidation of waste rock dumps, placement of a stabilizing barrier, replacement with clean fill, and revegetation. Approximately 40,000 cubic yards of contaminated soil type material. Priority Soils Priority Soils Time-Critical Removal Completed 1991 Included removal of contaminated soils in nine residential yards, removal or consolidation of waste rock dumps, a section of railroad bed, placement of a stabilizing barrier, replacement with clean fill, and revegetation. This included 23 sites, amounting to approximately 58 acres. Priority Soils Colorado Smelter Time- Critical Removal Completed January 1992 Included removal and consolidation of soils at former smelter site. A temporary onsite disposal area was created. Approximately 40,000 cubic yards of contaminated soil. Mine Flooding Travona Expedited Response Action On-going: Initial work completed in 1989 Pumping of rising water of the Travona Mine to prevent the water form flooding basements and migrating into Silver Bow Creek. The contaminated water is pumped to the Butte Metro Treatment Plant where it is treated and released to Siver Bow Creek. Approximately 107-million gallons of mine water have been pumped and treated to date. Pumping is stopped when the water level at the site is brought below the desired control elevation and resumed when necessary to keep the water below the control level. ------- Page Intentionally Blank 55O ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Swink Mercury, Region 8 Swink, Colorado Status: All removal actions have been completed at this site. Currently there is unrestricted use and access to the homes previously affected by the mercury. Results and Benefits: The children and other residents of the contaminated homes would likely have continued to be exposed to the hazardous substance at the site had removal actions not been implemented. Precipitation could have spread the contamination further into the community and eventually to tributaries of the Arkansas River. Background: The EPA Emergency Response Branch was called on Jury 11,1991, to respond to a mercury spill in Swink, Colorado. The On-Scene Coordinator informed a Technical Assistance Team (TAT) that several children were playing with mercury. Reports indicated that nine people were exposed to the mercury and taken to medical centers; some were experiencing numbness of the extremities. The site consisted of three houses: 105, 107, and 108 B Street. Children had found approximately 8 to 10 ounces (by weight) of mercury in ajar in a garage at the corner house, 105 B Street, and played with it in the backyard. They then moved to the front porch of 107 B Street, where they continued to play with the mercury. One girl started to feel numbness in her fingers and noticed her gold rings had turned silver. She called her father, who told the children to get cleaned up and reported the incident to the authorities. The children cleaned themselves and bagged their clothing. Mercury droplets could be seen at these two locations upon initial inspection. Actions: On July 15,1991, a five-person team comprised of EPA, TAT, and Emergency Response Cleanup Services (ERCS) contractor personnel were mobilized to stabilize the contamination. Using a mercury vacuum machine, the team collected free mercury from the affected play areas. The contaminated play and yard areas were vacuumed twice, once for free mercury and then after an application of sodium thiosulfate. Real-time air monitoring using a mercury vapor analyzer was performed to determine if the affected areas were cleansed below the cleanup level of 0.05 mg/m3. Until the areas above this standard were cleaned, respiratory equipment was worn and the areas restricted. Mercury- contaminated soil, decontamination water, and clothing were containerized and staged for proper disposal. KPCl ------- Page Intentionally Blank 552 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Xtron Corporation Site, Region 8 Blanding, Utah Status: The time-critical removal action has removed threats of a fire and explosion or a release of toxic chemicals at the site. Since completion of the removal action, the property has been deeded to a nonprofit organization for the establishment of a dinosaur museum. Results and Benefits: Due to the removal action, the threats of contaminants to the environment and of an explosion from the presence of a 5-pound container of anhydrous ether were avoided. Fire and an explosion could have endangered the surrounding community, releasing contaminants to the ground and in the air as dust. Prior to accepting the property, the nonprofit organization had extensive soil and water sampling conducted to ensure that cleanup was complete. Due to the thoroughness of the cleanup, local citizens were able to acquire the site with little investment and to develop plans for a dinosaur museum to benefit the community. The nonprofit organization gained use of the property for a nominal amount of money and the owner (a responsible party) received a tax credit for the sale. All taxes on the property are current, and the State has given the organization permission to begin the actual design and construction of the museum. World- renowned dinosaur sculptors have also joined in the activity to establish this museum. Background: The site encompasses 10 acres within the city limits of Blanding, Utah. The facility itself is 2 acres. Approximately 3,100 people live in Blanding. The nearest residence is 350 feet northeast of the site. A large number of homes are located within a 1,500-yard radius of the site. The materials on the site were from a metals processing and refining operation. The wastes included 500 to 600 cubic yards of "treater dust," 659 drums of acid leach sludges and metal wastes, varying volumes of reagent-grade acids and chemicals remaining in the "wet* laboratory, and the contents of three surface impoundments. These wastes contained high concentrations of arsenic, arsenic trioxide, selenium, lead, chromium, and cadmium. An opened 5-pound container of ether was also found in the laboratory area. Approximately 147 drums full of sodium arsenate were located on a concrete slab attached to the building. The drums were exposed to the elements and stored within an unsecured fenced area. The majority of the drums were corroded, and arsenate salts were evident outside the drums and on the slab. Due to a spillage of materials, there was also some contamination of soil in a warehouse attached to the building. There had been reports of children playing on the treater dust piles, and this was confirmed by footprints and bicycle tracks. Also, the treater dust had been mobilized by wind, motorized and nonmotorized vehicles, and precipitation, and had spread away from the piles. Due to the unsecured nature of the site, direct contact with the materials in the drums, the warehouse floor, the laboratory chemicals, and the sludge pits was possible. ------- Xtron Corporation Site, Region 8 (Continued) Actions: In early 1988, the State requested EPA to Cleanup commenced on August 15, 1988, with conduct a site investigation with the possibility the removal of the treater dust. Drum sampling, of removal action after Xtron Corporation ceased overpacking, and removal began on August 22, operations. EPA inspected the site on March 1988, and was completed on September 30, 14, 1988, and developed a preliminary 1988. Soil was removed from the warehouse endangerment assessment based on the and the smelter room. The lagoons were inspection. Subsequently, EPA developed an excavated for offsite removal and filled in with Action Memorandum calling for the responsible clean soil while the entire site was graded. parties to develop a cleanup plan to safeguard Cleanup was completed on September 30,1988. the health of the community and the On August 25, 1989, after reviewing the data environment. In June, the responsible parties from the site, EPA determined that the removal secured the entire site with a chain-link fence action was complete. and posted signs. 554 ------- REGION NINE ------- Page Intentionally Blank ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Advanced Micro Devices (#915), Region 9 Sunnyvale, California Status: Remedial construction activities have been completed. The ground-water extraction and treatment plant has been operational for 8 years and wiE continue to operate for approximately 4 more years. Deed restrictions have been instituted to limit access to site ground water until the cleanup standards have been met. The site continues to be used for the manufacture of semiconductors. Results and Benefits: The selected remedy has eliminated the threat to human health and the environment by removing the leaking tank and contaminated soil and by treating the contaminated ground water with an air stripper. Future contamination of the surrounding soils and ground water has also been prevented. Background: Advanced Micro Devices, Inc. (Building 915) manufactures semiconductor and microprocessor devices on a 5-1/2 acre site. Building 915 was constructed in 1973 and operated until 1991. At the time of the building's construction, three underground acid neutralization tanks were installed north of the building. Additional underground tanks were used to store photoresist solution, waste solvent, and other miscellaneous solutions. In 1981, the company identified volatile organic compounds (VOCs) in wells near the building. In 1982, the company removed approximately 6,700 cubic yards of contaminated soil and the three-tank underground neutralization system. At that time, it was determined that one tank had a hole in its side. Another tank, that contained photoresist solution, also had been leaking and was removed. Based on soil sampling, excavation, and ground-water monitoring data, the neutralization system leak was labeled one source of the ground-water contamination. Two other nearby National Priorities List (NPL) sites, Advanced Micro Devices, Inc. and TRW Microwave, Inc, contributed to the ground-water contamination. Between 1982 and 1985, 12 ground-water extraction wells were installed to prevent the migration of contaminants off site. A ground- water treatment system, consisting of two air stripping towers (one active, one reserve), and aqueous phase activated carbon filtration units, was constructed in 1984. Treated ground water is reused as industrial process water or discharged to a storm sewer tributary of Calabazas Creek. The site was placed on the NPL in September 1990. Advanced Micro Devices, Inc. is located in a residential and industrial area. Contamination from the site can potentially reach the deep ground water that supplies the municipal wells within 3 miles of the site. These weEs provide drinking water to approximately 200,000 people in Santa Clara, Sunnyvale, and Mountain View. tavr ------- Advanced Micro Devices (#915), Region 9 (Continued) Actions: Remedial actions consisted of: continuing to reusing 100 percent of the treated effluent. The extract and treat ground water; conducting treatment plant and extraction system have periodic ground-water monitoring to verify operated properly for the past 8 years and are plume containment and determine current expected to continue treating ground water for plume boundaries; installing institutional another 4 years. controls in the form of deed restrictions; and 558 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Advanced Micro Devices, Inc., Region 9 Sunnyvale, California Status: This site is an active manufacturing facility. Removal of contaminated soil has been completed. Ground-water extraction and treatment is continuing. Deed restrictions have been instituted to limit access to ground water until cleanup standards are met. Results and Benefits: The ground-water treatment system is helping to keep contaminant levels within acceptable limits and is preventing further spread of contaminants. Deed and ground-water use restrictions have been implemented to prevent human exposure to contaminated ground water. Background: Advanced Micro Devices, Inc. (AMD) is located in a predominantly commercial and industrial area. Approximately 50,000 people live within 3 miles of the site, and the nearest residence is 1/2-mile away. Approximately 300,000 people depend on nearby municipal ground-water wells as a source of drinking water. The municipal wells, located about 1/2-mile from the site, have not shown signs of contamination. No private wells are used in the vicinity of the facility. The 6-acre AMD site is an active semiconductor manufacturing facility in Sunnyvale, Santa Clara County, California. The site is part of a larger study area that includes four operable units (OUs); the AMD site, the Signetics site, the 1-acre TRW Microwave site (TRW), and a 100-acre offsite contaminated ground-water plume. Six aquifers are associated with the study area including a deeper aquifer confirmed only at the TRW and Signetics sites. As a result of leakage from an acid neutralization system at the site, investigations were conducted that revealed extensive contamination of onsite soil and ground water. Leakage from an underground solvent storage tank at the Signetics site and responses to an information questionnaire regarding an underground tank investigation at the TRW site resulted in a number of investigations that revealed extensive contamination of soil and ground water. Two nearby National Priorities List (NPL) sites, Advanced Micro Devices, Inc. (Building 915) and TRW, have contributed to the ground-water contamination. Signetics, Inc., has been removed from the NPL, but still is required to participate in the cleanup under Regional Water Quality Control Board orders. Currently, the contaminated ground water is not used as a drinking water supply, but the State considers several of the aquifers in the area to be potential drinking water sources. Actions: Several initial remedial measures were conducted at the AMD OU. During 1983 and 1984, acid neutralization sumps and approximately 217 cubic yards of contaminated soil were removed. In 1984, the State issued a cleanup and abatement order, requiring AMD, Signetics, and TRW to develop a joint plan to prevent the further migration of contaminants. A new order was issued in April 1989, requiring an investigation with the neighboring TRW and Signetics sites. The order did not include AMD Building 915, which is an adjacent, but separate site. SS9 ------- Advanced Micro Devices, Inc., Region 9 (Continued) From 1984 to 1988, ground-water remediation was initiated with the installation of extraction wells and dewatering sumps. Ground water is extracted from 18 offsite wells installed as part of the cleanup activities for the NPL sites in the area and is treated by the air stripping tower, followed by carbon adsorption at the Advanced Micro Devices, Inc. (Building 915) site, located about 1/2 mile away. About one fifth of the treated water is discharged to a storm drain that empties into Calabazas Creek. The remainder is reused as industrial process water. The Record of Decision (ROD) was approved by EPA in September 1991. The selected remedial action for this site included separate remedies for the four different OUs of the study area. The remedy for the AMD OU included excavating 37 cubic yards of onsite contaminated soil, followed by offsite incineration and/or disposal, and backfilling the excavation with clean soil; continuing onsite pumping and treatment of ground water using air stripping and carbon adsorption of off gasses, followed by reuse of the treated water; continued ground-water monitoring; and implementing institutional controls including deed and ground-water use restrictions. EPA and the Regional Water Quality Control Board will be conducting a 5-year review of the site in 1996. At that time, the performance of the ground-water pump and treat system will be evaluated and adjusted, if necessary. 560 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Applied Materials, Region 9 Santa Clara, California Status; The contaminant source has been removed, and a ground-water pump and treat system has been operating for 10 years. The long-term remedial action will continue until California drinking water standards are achieved. The site is currently used for industrial purposes, specifically the manufacture of silicon wafers. Results and Benefits: The source of ground-water contamination has been removed. The risk to human health from ground-water contamination has been eliminated by imposing deed restrictions and mandating cleanup to safe drinking water levels. Background: The Applied Materials site is a 9-acre site that has been used to manufacture equipment used in silicon wafer manufacturing. The area surrounding the site has residential, light industrial, and commercial uses. to 1983, AppHed Materials discovered volatile organic compounds (VOCs) down gradient from some underground storage tanks. Specific chemicals of concern include trichloroethane (1,1,1-TCA), dichloroethane (1,1-DCA), and dichloroethylene (1,1-DCE). Ground-water contamination appears to be localized under or nearby the facility. Actions: As in interim response action, ground-water extraction and treatment (air stripping followed by discharge to storm sewer) began in 1984. In 1985, the tanks were excavated, and about 60 cubic yards of soil were removed. The 1990 Record of Decision (ROD) selected the existing pump and treat system with a few minor modifications. An investigation was begun in 1990 to determine the effect of potentially contaminated soil under the building. The 1993 ROD reaffirms the selected ground-water remedy and requires no action on vadose (unsaturated shallow) zone soils. A deed restriction to prevent drinking water well installation has been placed on the site property, and the Santa Clara Valley Water District will not issue a drilling permit in this area. Pump and treat will continue until California drinking water standards are achieved. This is expected to occur about year 2005. ------- Page Intentionally Blank 562 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Beckman Instruments, Region 9 Tulare County, California Status: In 1983, the evaporation pond liquids, liners, and surface soils were removed and disposed of. In 1985, the facility installed a ground-water pump and treat system to stop the westward spread of contaminants in the upper aquifer and to begin cleaning the ground water. In 1987, an eastern containment/reclamation well field was installed. As of January 1990, ground- water cleanup standards were achieved in the upper aquifer; however, the upper aquifer is still monitored, and treatment of ground water in the lower aquifer is still in progress. Excavation and removal of the lead-contaminated soil was completed in March 1990. The site is currently used for light industrial purposes; specifically, the manufacture of circuit boards and electronic equipment. Results and Benefits: The pump and treat system at the facility has been effective in reducing the levels of contamination in the ground water. Cleanup standards for the surface and upper aquifer have been achieved. Soils contaminated with lead have been removed from the site, which eliminates the potential for direct exposure to hazardous materials at the site. When the cleanup standards are attained in the lower aquifer, the site will have unlimited use and unrestricted exposure. Background: This site is located near the southern limit of the city of Porterville in Tulare County, approximately 25 miles southeast of Visalia on the eastern fringe of California's central valley. The site study area occupies 12 acres of a 500- acre site and consists of the Beckman property and farm/residential property to the west. A municipal water supply well is located about 500 feet northwest of the facility. Ground-water monitoring of the surrounding area indicated the presence of elevated levels of volatile organic compounds (VOCs) and heavy metals. Beckman Instruments has manufactured printed circuit boards and electronic component parts at the facility since 1968. From 1974 to 1983, wastes (including spent halogenated solvents, acid solutions, and heavy metals) were disposed of in an evaporation pond on site. Other areas where wastes were dumped include a former etchant tank, the ammonium persulfate and copper waste discharge area, and the depression area. Actions: In response to enforcement actions taken by the Regional Water Quality Control Board, and the California Department of Toxic Substances Control, the facility initiated ground-water monitoring in the vicinity of the evaporation pond in late 1982, in conjunction with closure of the pond. Discharges to the pond were terminated in January 1983. In 1985, the facility installed a ground-water pump and treat system to stop the westward spread of contaminants in the upper aquifer. As of January 1990, ground-water cleanup standards were achieved in the upper aquifer. Also, excavation and removal of the lead- contaminated soil was completed in 1990. An eastern containment/reclamation well field was ------- Beckman Instruments, Region 9 (Continued) installed in 1987. Ground water extracted from this area is pumped to an onsite air stripping tower. As of September 1993, the cleanup criteria for the ground water was expected to be achieved in 2 to 48 years, with subsequent long- term monitoring for up to 20 years. 564 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Celtor Chemical Works, Region 9 Humboldt County, California Status: The Celtor Chemical Works site is an abandoned ore processing facility. Currently, the site is inactive; all cleanup actions have been completed. Only minor operation and maintenance activities are required at the site. Results and Benefits; Contaminated soils have been excavated and removed, eliminating the potential for direct exposure to hazardous materials at the site. After cleanup actions were completed, EPA and the State determined that the site met human health and environmental goals. Background: The Celtor Chemical Works site, located at the northern end of the Hoopa Valley in Humboldt County, California, is approximately 2.5 acres of mountainous land and is owned by the Hoopa Valley Indian Tribe. The Tribe leased the land to the Celtor Chemical Corporation, which extracted copper, zinc, and precious metals onsite from sulfide ore mined and trucked from the nearby Copper Bluff Mine. Celtor operated from 1958 until 1962, when it abandoned the site. Mine tailings generated from the milling operations were left onsite. These tailings, along with nonspecific releases of processed ore, are believed to be the cause of the acidic surface water runoff and elevated metals concentrations in the soils throughout the site, ta addition, the tailings may have caused pollution and numerous fish kills for which the California Department of Fish and Game cited the Ceitor Chemical Corporation. The main features of the site are: an adjacent pasture used for grazing livestock, a gully connecting the plant and the Trinity River, a drainage creek that collects surface runoff and carries it into the Trinity River, and a fishing access road that is heavily used by local residents. About 900 people Eve within 3 miles of the site. The Trinity River, which supports the only fish resources for the Hoopa Indians, flows through the center of the Reservation and near the site. Actions: The site was discovered in 1981 as part of the abandoned site program industrial waste facility survey conducted by the State. Due to high concentrations of heavy metals in soil and surface water samples, the site was added to the National Priorities List (NPL) in September 1983. More extensive sampling uncovered high concentrations of copper, zinc, cadmium, arsenic, and mercury in the surficial soil and acidic surface water. Initial remedial actions were implemented at the site in October 1983, and included excavation and offsite disposal of 1,400 cubic yards of visibly contaminated material. This material included tailings, nonconcrete structures, and a portion of the pasture adjacent to the site. The main portion of the site was fenced, and the access road was covered with gravel. The flow of several springs was diverted away from contaminated areas and into a nearby creek emptying into the Trinity River. ------- Celtor Chemical Works, Region 9 (Continued) In October 1984, EPA conducted the remedial investigation (RI) and identified additional contamination in the soil. On September 30, 1985, EPA signed the Record of Decision (ROD) for the site. The selected alternative for the second remedial action included excavation and offsite disposal of all soils contaminated above site-specific action levels at a RCRA-approved hazardous waste disposal facility. Action levels for contaminants in soil were based primarily on the acceptable range of contaminant levels in soil as derived from the EPA National Ambient Water Quality criteria. On September 30,1988, the last shipment left the site; on October 14, 1988, all backfilling and revegetation were completed. All cleanup actions have been completed, and no further action is necessary. A 5-year review was conducted in September 1993, and a second 5-year review will be conducted in 1998. 566 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET CTS Printer, Incorporated, Region 9 Mountain View, California Status: Currently, the ground-water extraction and treatment system is operational. Monitoring is being conducted to identify when the ground water no longer poses a significant threat to human health or the environment. Except for the ongoing ground-water cleanup activities. The site is currently being used to manufacture circuit boards. Results and Benefits: The excavation and disposal of contaminated soil, the installation of the neutralization system, and the operation of the ground-water extraction and treatment system have greatly reduced the potential for exposure to contaminated materials at the site. Background: The 5.5-acre CTS Printex, Incorporated site is located in Mountain View, California, a city of approximately 61,000 people. More than 188,000 people live within 3 miles of the site and use ground water from municipal wells as one source of drinking water. Pennanente Creek is located 400 feet from the site. This creek and all surface water in the area discharge to San Francisco Bay, 2.5 miles north of the site. CTS Printex manufactured printed circuit boards on this site from 1966 to 1985. The facility used a wet and dry process to manufacture the circuit boards. The wet process occurred in the "wet-floor" building, where process water containing heavy metals and volatile organic compounds (VOCs) was discharged to the floor drains and ultimatety into a neutralization sump. The plant received a license from the City of Mountain View that allowed the sump to discharge into the city's sewer system. The facility also generated other waste solvents that were disposed of offsite. Data from environmental monitoring show that the soils under the "wet-floor" are contaminated with copper and lead. Also, ground water on and offsite is contaminated with VOCs and heavy metals from discharges to the Vet-floor" and the neutralization sump. Actions: In 1986, the company excavated 255 cubic yards of soil under the building, decontaminated the building, and sent the wastes to an approved storage facility for hazardous wastes. The company also excavated the neutralization system between 1985 and 1986 and backfilled the area with gravel, clay, and asphalt. Three onsite, and one offsite extraction wells have been pumping ground water since 1987 and discharging it to Mountain View's sanitary sewer system under a permit from the City. Three additional offsite extraction wells began pumping in 1989. In 1987 and 1989, the California Regional Water Control Board issued cleanup and abatement orders that required the company to be more expeditious and thorough in its schedule for cleaning up the site. Under the State's oversite, the company started a study of the nature and extent of contamination at the site in 1989. The State used the results of this study to evaluate and make recommendations on methods for addressing the remaining ground-water contamination. The ------- CTS Printex, Incorporated, Region 9 (Continued) study was completed in 1991 and recommended extraction and treatment of the ground water. The ground-water pump and treat system is still in operation and will continue until ground- water monitoring shows that the levels are not a threat to human health or the environment. During the third quarter of 1993, over 300,000 gallons of ground water were extracted and treated at the site. Overall, about 8 gallons of dissolved trichloroethylene (TCE) have been removed from 97.5-million gallons of extracted ground water. 568 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Del Norte Pesticide Storage, Region 9 Crescent City, California Status: This site is undergoing long-term remedial action, and the construction phase of the action is complete and operating properly. The only operation and maintenance requirement at this site is the ground-water pump and treat system, which includes monitoring. Results and Benefits: The removal of contaminated soils and the installation of the ground-water pump and treat system at the facility have greatly reduced the potential for exposure to contaminated materials at the site. Background: The Del Norte Pesticide Storage site is less than 1 acre of land (within a 480-acre parcel owned by the County) located approximately 1 mile northwest of Crescent City, California, and is bordered by the Pacific Ocean, State-owned land, residences, and farmland. Certain areas surrounding the site and within the 480-acre parcel owned by the county are seasonal wetlands. Private wells supply the domestic water to the area, and four wells are located within 2,500 feet of the site. Approximately 250 people live within 1 mile of the site. The site operated from 1970 to 1981 and accepted containers from local agricultural and forestry related industries. The site was intended to be an interim or emergency storage area for pesticide containers that previously had been triple-rinsed and punctured. Site investigations revealed that a sump, approximately 15 feet by 20 feet, was the primary area of soil contamination, with organic compounds detected to a depth of approximately 12 feet below grade. It is suspected that wastes and/or rinse water were disposed of in the sump. In 1982/1983, approximately 1,600 drums that had held the wastes and rinse water were recovered and recycled by the County Agricultural Department. Preliminary investigations from 1981 to 1983 identified that the soil and ground water were contaminated with herbicides, pesticides, and volatile and semivolatile organic compounds. Primary contaminants detected in both soil and ground water were 2,4-D and 1,2- dichloropropane. The site was listed on the National Priorities List (NPL) in the fall of 1993. Actions: The remedy that EPA selected in the September 30, 1985, Record of Decision (ROD) for the site included: excavation and offsite disposal of contaminated soils from the sump and trench areas to a RCRA treatment, storage, and disposal facility (TSDF); extraction of contaminated ground water; treatment of ground water contaminated by organics and pesticides by carbon adsorption; offsite disposal of spent carbon filters to a RCRA TSDF; treatment of chromium-contaminated ground water by coagulation and sand filtration technologies; offsite disposal of chromium rich waste brine to a RCRA TSDF; piping treated ground water to the county sewer main; and ground-water monitoring. KRfl ------- Del Norte Pesticide Storage, Region 9 (Continued) In a 1987 EPA removal action, approximately 350 cubic yards of contaminated soils were excavated and properly disposed of at Envirosafe Services of Idaho (ESI). This material was considered to be the source of ground-water contamination. The concentration of pesticides in the ground water decreased due to the removal of this source of contamination, high rainfall rates, volatilization, and biodegradation. Therefore, the ground-water treatment remedy of carbon filtration, coagulation, and sand filtration was changed to aeration, a much less expensive technology, in the September 21, 1989, explanation of significant differences (ESD). An air stripping ground-water treatment system was constructed in 1989 and has been successfully treating the ground water prior to discharge to the municipal waste treatment system. The system has been operating effectively since 1990. In 1991, operations were temporarily halted while repairs were made to a pipe that had been damaged due to freezing. As of January 1995, approximately 14-million gallons of contaminated ground water have been treated and discharged. 570 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Fairchild Semiconductor Corp., Region 9 San Jose, California Status: All construction activities at the Fairchild Semiconductor Corporation site have been completed. The extraction and treatment systems have been operational and functional since the initiation of interim measures in 1982. The only activity remaining at the site is a long- term response action addressing the restoration of ground-water quality that is expected to be complete in 15 years. A 5-year review was completed in 1993. The site is currently used for the manufacture of semiconductors. Results and Benefits: Once complete, the remedy selected in the Record of Decision (ROD) will assure protectiveness through restoration of ground water to its beneficial use. Attainment of cleanup standards will allow unlimited use and unrestricted exposure to soil and ground water. Deed restrictions have been established to prevent use of the aquifers within the slurry wall for drinking water supplies and to restrict activities in the subsurface that could damage the slurry wall. Human health is being protected in the interim, while the long-term response action is underway. Background: The 22-acre Fairchild Semiconductor Corporation site is a former semiconductor manufacturing facility located on Bernal Road in the City of San Jose. The facility operated from April 1977 until 1983. It is one of 28 National Priorities List (NPL) sites in the South Bay Area of San Francisco. Facilities at these sites have used a variety of toxic chemicals, primarily chlorinated organic solvents, which contaminated a common ground-water basin. Private wells at the site were sealed in the 1980s. In October 1981, a leaking underground tank was discovered at the Fairchild facility, releasing an estimated 60,000 gallons of waste solvent. The tank and associated contaminated soil were removed in 1982. Solvents were detected in high concentrations in three aquifers (A, B, and C) and one drinking water supply well. The well was closed, and an extensive soil and ground- water treatment program was initiated. Ground- water contamination initially extended downgradient about 4,500 feet from the facility property. The areal extent of soil and ground- water contamination on facility property has been reduced to approximately 4 acres. TCA and 1,1-DCE are the only chemicals currently detected outside the slurry wall, and concentrations are below the Maximum Contaminant Levels. A computer model shows that cleanup requirements for the B aquifer outside the slurry wall will be reached in approximately 15 years whether offsite extraction wells are operating or not. The final Esting on the NPL occurred on October 4,1989. Actions: Fairchild has been extracting and treating ground water from the affected aquifers as part of an interim cleanup program since January 1982. Other interim actions taken by Fairchild included removing the defective tank, excavating and land disposing of 3,400 cubic yards of soil at a regulated hazardous waste facility, installing a slurry wall around the perimeter of the ttvi ------- Fairchlld Semiconductor Corp., Region 9 (Continued) property, sealing the contaminated well and other old conduit wells, and performing soil vapor extraction of soils in the area of the former waste solvent tank. The site was fenced to limit access during soil treatment, but the fence has since been removed. EPA selected pump and treat (air stripping) and soil vapor extraction technologies in concert with the slurry wall as the final cleanup plan for the site. Fairchild has implemented the selected remedy under a State administrative order and with State oversight. EPA has continued in the role of support agency. The full-scale soil vapor extraction system was constructed and operational and functional by November 1988. Additionally, Fairchild has operated the ground- water extraction and treatment systems since May 1982. Fairchild has been required to routinely monitor the affected aquifers. The last C aquifer recovery well was removed from service on September 6, 1988, and monitoring indicates chemical concentrations remain below the cleanup level. In February 1989 a plan was initiated to temporarily suspend pumping in the B aquifer outside of the slurry wall. In 1991, Fairchild implemened a State-approved plan to temporarily cease pumping in the B aquifer outside the slurry wall. Currently, ground water is pumped and treated from the onsite aquifer inside the slurry wall. Chemical removal rates for the soil vapor extraction system decreased such that only 2 years of operation were performed. In May 1990, the soil vapor extraction system was shut down within the slurry wall as authorized by EPA and the State. 572 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Firestone lire, Region 9 Salinas, California Status: Remedial actions at this site have been successful. The removal and capping of the contaminated soil and the extraction and treatment of contaminated ground water have reduced the potential of exposure to contaminants at the site while final ground- water treatment activities are being completed. The site is currently used for warehouse facilities. Results and Benefits: Prompted by EPA, Firestone Tire & Rubber has assumed responsibility for cleanup of its Superfund site located near Salinas, California. Recent monitoring has demonstrated that the cleanup action has significantly reduced the size of the contaminated ground-water plume. Treatment will continue until all cleanup goals have been met. Residents claiming serious health effects from chemicals leaching into their drinking water due to the company's disposal practices were awarded compensation. The 43- acre site, which included the former plant's infrastructure, was sold in February 1993 as part of a 102-acre parcel for use as a general warehousing facility. Background: The Firestone Tire site consists of a 43-acre former tire manufacturing plant within a 256- acre parcel. The site is located in a rural farmland area about 6 miles southeast of Salinas, California. Various chemicals, including petroleum fuels, solvents, and processing oils, were apparently spilled during the manufacturing processes. Contamination at the site was discovered in 1983 during the plant closing. Soil and ground water were found to be contaminated with volatile organic compounds (VOCs). Neighbors of the community near Salinas became concerned when wells near the manufacturing plant showed offset contaminant migration. An estimated 400 drinking water wells have been identified in the area. Actions: Firestone Tire & Rubber was required to assume financial responsibility for the Superfund site cleanup. Initial response actions included removal of contaminated soil, ground-water treatment, and soil capping. For the remedy, EPA required the installation of five extraction wells to pump and treat ground water from shallow and intermediate aquifers. The treatment will continue until all site cleanup goals have been achieved. ------- Page Intentionally Blank 574 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Intel Corp. (Santa Clara #3), Region 9 Santa Clara, California Status: Extraction and treatment of ground water is the selected remedy for this site. Intel estimated that 11 years will be required to reach the cleanup standard of 5 ppb in all monitoring wells at the site. Once this remedy is completed, no hazardous substances will remain onsite above levels that would limit the use and unrestricted exposure. Since this remedy will require greater than 5 years to achieve cleanup levels, a 5-year review will be conducted. The 5-year review is scheduled for completion by September 30, 1996. A deed restriction prohibits use of onsite shallow ground water for drinking water and controls other subsurface activities. The deed restrictions shall remain in place until safe drinking water levels are achieved. The Intel Santa Clara 3 (SC3) facility continues to operate at the site. Results and Benefits: Contaminant concentrations in ground water have declined to levels corresponding to an acceptable risk range since pumping started in 1985. Intel estimated 11 years as the time required to reach the cleanup standard in all monitoring wells at the site. Once this remedy is completed, no hazardous substances will remain onsite above levels that would limit the use and unrestricted exposure at the site. A deed restriction prohibits use of onsite shallow ground water for drinking water and controls other subsurface activities, thereby, protecting human health. The deed restrictions will remain in place until safe drinking water levels are achieved. A 5-year review will be conducted to ensure that the remedy remains protective. Background: Intel Corporation owns and operates the 4-acre SC3 facility, which performs quality control of chemicals and electrical testing of semiconductors. The site has been in operation since 1976. It is one of 28 National Priorities List (NPL) sites in the South Bay Area of San Francisco. Facilities at these sites have used a variety of toxic chemicals, primarily chlorinated organic solvents, which have contaminated a common ground-water basin. Cleanup activities at some of these sites have been combined as part of an area-wide approach to the contamination. The site overlies the Santa Clara Valley ground-water basin which provides up to 50 percent of the municipal drinking water for the 1.4 million residents of the Santa Clara Valley. The following substances have been detected in the ground water: trichloroethylene (TCE), 1,1,1-trichloroethane (1,1,1-TCA), 1,1- dichloroethylene (1,1-DCE), 1,1-dichloroethane (1,1-DCA), and 1,2-dichloroethane (1,2-DCA). The site was placed final on the NPL in June 1986. The ground-water treatment system operates tinder NPDES permit No. CA0028941 for the discharge of treated ground water. The remedial investigation (RI) identified three potential source areas at the site: (1) leaks from the secondarily contained acid waste neutralization tank, (2) accidental spills near the above ground solvent storage facility, and (3) solvent spills associated with cleaning out pipes placed in service during the construction of the SC3 building. Twelve A-zone and four B-zone monitoring wells were installed onsite to define ------- Intel Corp. (Santa Clara #3), Region 9 (Continued) the extent of the plume. The final feasibility study (FS) was submitted in February 1990. Actions: Intel has been extracting A-zone ground water from two extraction wells since February 1985. Construction of the original ground-water pump and treat system occurred during 1984 when the Regional Board approved interim measures for the site. A Record of Decision (ROD) was signed September 20, 1990, with the following remedy selected: (1) continued ground-water extraction until drinking water quality is achieved, with treatment using a granular activated charcoal (GAC) system and discharge to San Tomas Aquino Creek under the existing NPDES permit; (2) continued quarterly ground- water monitoring at the site during the cleanup period; (3) a demonstration project to evaluate the efficacy of intermittent pumping of the extraction wells; and (4) deed restrictions to prohibit use of onsite shallow ground water for drinking water until safe drinking water levels are achieved. Construction activities identified in the ROD included installation of an additional extraction and monitoring well, which was installed in August 1990, with ground-water extraction from the well beginning in December 1990. Approximately 30,000 gallons per day of ground water are extracted and treated by the GAC system. The first phase of the project was conducted between April and August 1991. Except for shutdowns associated with maintenance, the extraction wells operated continuously between June 17, 1991, and December 31,1991. A number of different cyclic pumping schemes have been tried, but no significant increase in efficiency has been demonstrated. Intel claims that ground-water pollutant concentrations have reached asymptotic levels requiring no further treatment and manageable through deed restrictions and long-term monitoring. 576 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Intel Magnetics, Region 9 Santa Clara, California Status: All construction activities have been completed for the Intel Magnetics (IM) site. EPA and the Regional Water Quality Control Board (RWQCB) conducted a pre-final inspection of the Long- Term Remedial Action (LTRA) on November 7, 1990, and determined that the Potentially Responsible Parties (PRPs) had constructed the remedy in accordance with the Record of Decision (ROD). Ground-water extraction and treatment will continue until cleanup standards are achieved. Quarterly ground-water monitoring will also be conducted by RWQCB until cleanup standards are achieved. A deed restriction on ground-water use and other subsurface activities is in place. The businesses causing the contamination are no longer operating at the site, but the buildings are leased to other tenants, with the electronics industry still dominating the area. Results and Benefits: The installation of a ground water pump and treat system greatly reduced the potential of exposure to contaminated ground water at the IM site while cleanup activities were being planned, and operation of an expanded system will continue until cleanup standards are met. The cleanup standards for the site are protective of human health. The deed restrictions will remain in place and ground-water monitoring will continue until the cleanup standards are met, in order to ensure the protectiveness of the remedy. Background: This 1-acre site is located in an industrial park in the City of Santa Clara, California. IM produced and tested magnetic products and bubble memories at the site from 1978 to 1987. Micro Storage occupied the site from 1985 to 1986 and used the facility for research and development and pilot manufacturing. Micro Storage also occupied a property adjacent to and upgradient from Intel Magnetics that contributed to the contamination. Onsite monitoring wells are contaminated with volatile organic compounds (VOCs) believed to have resulted from surface spills and a leak from an underground storage tank. The PRPs, under State supervision, completed the remedial investigation in early 1991. Trichloroethene, 1,1-dichloroethene, 1,2-dichloroethene, and Freon 113 were detected at levels above the drinking water standards. The site was listed on the NPL in June 1986. The IM site is one of 28 NPL sites in the South Bay Area of San Francisco where a variety of toxic chemicals (primarily chlorinated organic solvents) were used, and are believed to have contaminated a common ground water basin. Cleanup activities at some of these sites have been combined as part of an area-wide approach to contamination. The extraction system at the IM site is coordinated with operations at the nearby Metropolitan Corporate Center (MCC) site, to maiximize pollutant removal and minimize hydraulic effects on the other site's plume. Actions: Intel installed a system to pump and treat contaminated ground water in 1990. Installation of an expanded ground-water extraction and treatment system was certified •err ------- Intel Magnetics, Region 9 (Continued) in January 1991. Treated ground water is discharge under NPDES permit number CA0029670. The ROD issued August 26, 1991 specified a remedy with the following components: continued ground-water extraction until cleanup standards are achieved in all monitoring wells; hydraulic containment of the entire ground-water plume above cleanup standards and continued ground-water extraction at the four existing wells; maintenance of hydraulic control to prohibit the further vertical and horizontal migration of the ground-water contamination; continued quarterly ground-water monitoring during the cleanup period; treatment of extracted ground water with the existing carbon adsorption system; and a deed restriction prohibiting the use of onsite shallow ground water for drinking water and controlling other subsurface activities. 578 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Intersil/Siemens Components, Region 9 Cupertino, California Status: Intersil is inactive, but Siemens continues to operate semiconductor manufacturing onsite. Remedial action has prevented the spread of a ground-water plume into city drinking water. As a deterrent to future ground-water contamination, Siemens now stores waste solvent about ground and has an aboveground wastewater treatment facility. Monitoring will continue to verify that safe levels are met. Results and Benefits: The public water supplies for the cities of Cupertino, Santa Clara, and Sunnyvale continue to meet all Federal and State waster quality standards. Background: In 1982, the California Water Control Board sent out a questionnaire that led to the identification of soil and ground-water contamination at the Intersil, Inc., and Siemens Components site and 27 other sites located in Santa Clara County. Aware of the potential for contamination to the common aquifer that supplies drinking water to the Town of Cupertino, the State of California and the potentially responsible parties responded promptly to address ground-water contamination. EPA conducted an investigation of the two neighboring semiconductor manufacturers, Intersil, Inc. and Siemens Components, and found leaks in storage tanks used for solvents, underground sumps, nd basins for wastewater treatment. Very high levels of trichloroethene (TCE), 1,1,2-trichloroethane (TCA), and freon were found in ground-water samples taken on the properties. Low levels of these contaminants were also found in a deep private irrigation well about a 1/2-mile from the site; this well was subsequently sealed. Actions: Initial actions included removal of underground storage tanks, installation of a pump and treat ground-water system, and installation of a vapor extraction system to remove volatile organic compounds (VOCs) from soE around the tanks. Approximately 40 cubic yards of soil have been removed. Soil vapor extraction and air stripping were selected in conjunction with pump and treat technology to speed up the release of organic contaminants from the soil and water, respectively. An onsite carbon adsorption unit treats the extracted water from 23 wells before it is discharged into Calabazas Creek. ------- Page Intentionally Blank 580 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Jibboom Junkyard, Region 9 Sacramento, California Status: Rem'edial actions, including removal of lead- contaminated soil, replacement with clean soil, and landscaping, were completed in 1987. Since this time, approximately one-half of the 9-acre site has been taken in the construction of a major highway. Additional redevelopment scenarios are under consideration for the remainder of the property including State offices or museums. Results and Benefits: As a result of the excavation and offsite removal of lead-contaminated soils, removal of hazardous materials from an onsite plant, and removal of underground fuel tanks, the former salvage yard and power plant can now be used for State office buildings. In the mid- to late-1980s, an interstate highway claimed approximately half of the site during its construction. A California State agency purchased from the State Department of Parks and Recreation the remaining 4.5-acre property in 1988 for the appraised value of $1.8 million. As a result of its riverfront location, State developers wish to reclaim this property to house the California Water Project and State Flood Response operations. The national Weather Service and Federal Bureau of Land Reclamation have also expressed interest in the site. All plans are currently on hold until the California Department of Transportation decides if it will place an offramp from an adjacent highway across the site. Background: This site is located in an industrial section of Sacramento that borders the Sacramento River 2,000 feet downstream from the convergence of the American and Sacramento Rivers. A power company occupied the site until 1957, when it became a scrap yard for old railroad cars, automobiles, and other salvageables. The property was subsequently listed as the State's most toxic site. Actions: Remedial actions called for excavation and offsite removal of lead and other heavy-metal- contaminated soils. In 1986 and 1987, approximately 12,000 tons of lead-contaminated soils were removed from the site. Clean soil was then brought in, graded and revegetated. 581 ------- Page Intentionally Blank 582 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Mountain View Mobile Homes, Region 9 Mountain View, Arizona Status: Construction at the Mountain View Mobile Homes site has been completed. The site was deleted from the National Priorities List (NPL) in 1988. Results and Benefits: EPA and the State have determined that the site is protective of human health and the environment and that no further cleanup is required. The numerous cleanup and relocation activities have eliminated the potential of exposure to asbestos-laden materials at the Mountain View Mobile Homes site. Background: The 17-acre Mountain View Homes site was developed in 1973 on the site of the former Metate Asbestos Corporation's chrysotile asbestos mill. Two of the mills were ordered closed by the County in 1973 when they failed to meet new EPA standards for emmissions. Before closing, however, the owner of one of the mill sites obtained a permit to rezone the property into a residential subdivision. Before shutting down, the mills continued operating for several weeks while residents were moving into the mobile homes. The third mill, with its large pile of asbestos mill tailings, continued to operate a few hundred yards from the mobile homes. In 1979, asbestos contamination of the site was discovered by local health officials inspecting the waste disposal system at the site. Small piles of asbestos mill tailings were found against the abandoned mill structures and the adjacent railroad tracks. Asbestos mill tailings were used as primary landfill material before the site was partially covered with topsoil. Approximately 100 to 130 people lived in the mobile home park. In 1980, the State provided temporary housing for the residents while the site was being decontaminated. The old mill buildings were demolished, and topsoil was used to cover the contaminated soil. Wind, water, and human activity soon eroded the soil covering, which exposed the asbestos tailings again. Actions: In 1980, the State provided temporary housing for the residents while the site was being decontaminated. The old mill buildings were demolished, and topsoil was used to cover the contaminated soil. Wind, water, and human activity soon eroded the soil covering, which exposed the asbestos tailings again. Remedial actions at the Mountain View Mobile Homes site included: permanently relocating the mobile home residents. Permanent relocation of all residents was completed in 1985, and ownership of the purchased property was transferred to the State. Following relocation of the residents, the site was cleaned up. The homes and other structures were crushed and buried offsite in two natural depressions. Drainage culverts and enclosed pipes were installed to reduce the potential for erosion of the cover soils. A filter fabric was placed over the entire site to act as a physical barrier to upward movement of asbestos fibers and to prevent erosion. Clean soil was placed over the filter fabric, and compacted and crushed rocks were added to complete the cover. The site was •too ------- Mountain View Mobile Homes, Region 9 (Continued) fenced to protect the integrity of the cover. EPA and the State have determined that the site is protective of human health and the environment and that no further cleanup is required. The site was deleted from the NPL in 1988. 584 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET SOLA Optical USA, Inc., Site, Region 9 Petaluma, California Status: As part of remedial action, SOLA is presently operating a ground-water extraction and treatment systems. It is estimated that this operation will continue for 15 to 20 years, or until the cleanup standards are achieved and continuously maintained throughout the aquifer. The site is currently operated by SOLA, which manufactures ophthalmic lenses. Results and Benefits: SOLA has addressed the principal threats by removing the underground tanks and contaminated soils adjacent to the tanks. Based on the results of the risk assessment and a ground-water model, the residual extent and concentration of contamination in the soils no longer present a threat to human health. Background: The SOLA site is located in southern Sonoma County, on the southeastern edge of the City of Petaluma. SOLA has been manufacturing hard- resin ophthalmic lenses since 1978 at its 35- acre facility in Petaluma's industrial area. In May 1982, SOLA identified low levels of solvents in ground water near six underground solvent storage tanks. SOLA used these six 1,000-gallon tanks to store trichloroethane, acetone, and methanol. In 1985, SOLA independently removed the underground storage tanks, which involved excavating gravel back-fill and an additional 3 feet of surrounding soil from the sides and bottom of the tank. SOLA collected 22 soil samples from the pit. Based on the analyses of these samples, an additional 2 feet was excavated. SOLA'S early investigations also confirmed that the ground water at the site was contaminated with volatile organic compounds (VOCs) and methylene chloride. Actions: In 1983, the regional water control department directed SOLA to further investigate the ground water at the site. In 1987, the regional water control department issued a cleanup order to SOLA to construct a ground-water extraction and treatment system. The SOLA site was proposed for the National Priorities List (NPL) in June 1988, the same year its ground-water extraction and treatment system began operating. In 1990, SOLA installed nine additional monitoring wells. Samples taken from these wells indicated the VOC-contaminated ground water was largely limited to the SOLA property. SOLA currently discharges its treated ground water to the nearby Adobe Creek under a National Pollution Discharge Elimination System (NPDES) permit. SOLA has financed and conducted a remedial investigation and feasibility study under an EPA Administrative Consent Order signed in 1989. SOLA has also paid past costs and oversight costs incurred by EPA. ------- Page Intentionally Blank 586 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Spectra Physics, Inc., Region 9 Mountain View, California Status: Spectra Physics, Inc. continues manufacturing electronics components and gas lasers and monitors the site quarterly. As a result of remedial actions, soil has been cleaned up. Quarterly monitoring of 60 wells will continue until safety standards are met. Air stripping is being used to conjunction with the pumping and treating of ground water to speed up the cleanup process, and will continue until drinking water standards are met. Results and Benefits: Remedial actions at this site prevented the spread of a ground-water plume into the public drinking water supply. The contaminated ground-water plume migration offsite has been addressed by extraction wells. Water supplies for the cities of Cupertino, Santa Clara, and Sunnyvale continue to meet Federal and State water quality standards. Background: The Spectra Physics, Inc. site a 11.5-aere parcel of land located in Santa Clara County, California. The densely populated area surrounding the site is a mixture of industrial and residential land uses with approximately 189,000 people obtaining drinking water from public and private wells within 3 miles of the site. In 1981, the soil and ground water at Spectra Physics, an electronics equipment and gas laser manufacturer, were found to be contaminated with volatile organic compounds (VOCs) from leaking underground sumps and stored chemical waste. This waste included paints, oils, acids, and bases associated with cleaners, degreasers, and lubricants from the manufacturing processes. No leachate collection systems or dikes had been installed, so leaking chemicals seeped into the soil and migrated into the deeper common aquifer contaminating a common ground-water basin. High VOCs were also found in Permanente Creek, which is within 1 mile of the site. Several species of endangered birds were found in the San Francisco Bay area, 2.5 miles downstream of the site. This site is one of 28 in the South Bay area of San Francisco. Not only were soil and ground water contaminated with VOCs, but a plume had moved offsite and merged with contamination from the neighboring Superfund site owned by Teledyne Semiconductor, Inc. Both firms have cooperated in the cleanup efforts. Most of the over 200 private wells drilled into the contaminated plume were closed, and residents were switched to public water supplies. Actions: Initial remedial actions included removal of four underground sumps from the site, excavation of over 6 feet of surrounding soil, and vapor extraction from the excavated soil. Cleanup addressed both containment of onsite contamination and treatment of offsite contamination in the deeper aquifer. Currently, 20 offsite wells treat offsite contamination, and on onsite shallow extraction well and an ------- Spectra Physics, Inc., Region 9 intermediate extraction system prevent the plume of contaminants from migrating offsite. Extracted water is conveyed to the City of Palo Alto's sanitary sewer system for treatment. The selected remedy included expanded soil vapor extraction. 588 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Synertek, Inc., Region 9 Santa Clara, California Status: Construction and remedial activities have been completed at the Synertek, Inc. site. Ground- water monitoring is ongoing. Deed restrictions apply to the shallow aquifers. Record of Decision (ROD) cleanup levels for soil contamination have been met. The site is currently used for electronics manufacturing. Results and Benefits: The Synertek site does not pose a direct threat to human health due to the treatment of ground water, soil, and deed restrictions. Background: From 1978 to 1986, electronics were manufactured in five buildings on the 3 1/2- acre Synertek, Inc. (Building 1) site. Building 1 is adjacent to three underground storage tanks used as a neutralization system, which leaked volatile organic compounds (VOCs) into the soil. These tanks were removed in 1985. At that time, it was discovered that onsite and offsite ground water had become contaminated. Subsequently, HoneyweE, the property owner, installed three onsite and two offsite ground-water extraction wells, along with an air stripping tower to treat the extracted ground water. The extraction and treatment system has been in operation since 1987. Approximately 300,000 people obtain drinking water from public wells within 3 miles of the site. The nearest downgradient municipal well is located 11/2 miles north of the plume. Actions: The remedial activities consisted of ground- water extraction, air stripping, and periodic ground-water monitoring. The ground-water extraction from two onsite and two offsite wells in the A Aquifer and one onsite well in the B Aquifer sent a combined flow of approximately 15 gpm to the air stripper. The air stripping evaluates whether injection of the treated water back to the subsurface would enhance the removal of pollutants, speed the cleanup, and reduce the amount of ground water discharged to the surface. It was concluded by the discharger and the Regional Board that reinjection of treated ground water to conserve the ground water resource at this site was impractible due to mineral precipitate buildup from the high hardness water. KfiO ------- Page Intentionally Blank 590 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Teledyne Semiconductor, Region 9 Mountain View, California Status: Construction activities at the Teledyne Semiconductor site have been completed. Ground-water monitoring is ongoing. Teledyne has implemented deed restrictions that prohibit use of the shallow aquifer as a drinking water source. The site is currently being used for the manufacturing of semiconductors. Results and Benefits: The remedial investigation and feasibiEty study (RI/FS), completed in April 1991, supported EPA's conclusion that the interim extraction and treatment measures were successful in controlling sources of contamination and preventing migration of contaminants in the affected aquifers. As a result of deed restrictions and remedial activities, the site no longer poses a direct threat to human health and the environment. Background: Teledyne Semiconductor has operated as a manufacture of semiconductors at this 1-aere site since 1962. In 1982, Teledyne reported to the California Regional Water Quality Control Board (CRWQCB) that soil and ground water were contaminated with solvents from an underground solvent storage tank. The State inspected the site in 1984 and found that contaminants had migrated north of the site and had affected approximately 50 private domestic wells. Furthermore, contaminated ground water that migrated north from another National Priorities List (NPL) site, Spectra-Physics, Inc., had merged with the contaminated plume of the Teledyne site. The two firms were cleaning up the sites jointly. This is one of 28 sites in the South Bay Area of San Francisco. Facilities at these sites have used a variety of toxic chemicals, primarily chlorinated organic solvents, which have contaminated a common ground-water basin. Although the sites are listed separately on the NPL, the cleanup activities are a part of an area-wide approach to the contamination. The site is located in a densely populated, urban area. Approximately 189,000 people, who depend on ground water as the source of drinking water, live within a 3-mile radius of the site. The distance from the site to the nearest residence is 200 feet. Actions: Remedial activities consisted of the removal of an underground storage tank, construction and use of extraction systems, and ground-water monitoring. In 1982, Teledyne removed a leaking underground tank and excavated the surrounding contaminated soils. Teledyne ceased using other underground sumps in 1987 when a new above ground, double-contained, acid neutralization system was put online. Three onsite extraction and treatment systems (air strippers) were installed and have been operating since August 6, 1991. 591 ------- Page Intentionally Blank 592 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET TRW Microwave Me., Region 9 Sunnyvale, Santa Clara County, California Status: Construction of the long-term remedial action is complete. Ground-water pump and treat are expected to continue until fall 2021. The site is still used for the manufacture of semiconductors and assembly of microwave components. Results and Benefits: The risks to human health have been minimized by removing the source of contamination and preventing the spread of contamination to the deep aquifer used for drinking water. The contaminated aquifer is not currently used for drinking water; but, it does discharge to the San Francisco Bay located about 3 miles north of the site. Because the plume is only 1-mile long, the remedy should prevent environmental impacts in the San Francisco Bay. The property has continued light industrial operations since contamination was discovered. Background: This site has been, and is currently, used for the assembly of microwave components and semiconductor processing. Aertech Industries started operations in 1968. TRW bought the operation in 1984 and, subsequently, sold it to FEI Microwave Inc. in 1987. The site was listed on the National Priority List (NPL) in February 1990. Surrounding property is used for light industry and residences. Contamination of the ground water and some soils has resulted from localized spills and leaking underground storage tanks. The major contaminant is trichloroethylene. However, other volatile organic compounds (VOCs), dichloroethylene, Freon 113, and tetrachloroethylene (perchloroethylene) have also been detected. Some nonvolatile organic compounds and metals have been detected at low concentrations, but their presence is not as great a human health or environmental concern. Two other sites on the NPL have also contributed to ground-water contamination at the site. The resulting plume is about 1-mile long, 0,3 of a mile wide, and 100 feet deep. TRW is responsible for onsite cleanup and is participating in a combined cleanup effort of offsite contamination. The contaminated aquifer is not currently used in drinking water. Actions: Interim response actions were in operation before the TRW site was added to the NPL. The 1991 Record of Decision (ROD) confirmed the operating remedy with only minor changes. Four underground tanks were removed in 1973, 1976, 1980, and 1983. In 1984, contaminated soils were excavated and disposed of offsite. A system of ground-water extraction wells have been operational since 1985, Extracted ground water is treated onsite using air stripping and then discharged to surface water. Offsite contamination is being remediated with a separate system of extraction wells. Ground water is extracted and conveyed to the Advanced Micro Devices #915 site. About 80 percent of the water are used as process water. The remaining 20 percent are treated in an air stripper and discharged to surface water. ------- Page Intentionally Blank 594 ------- REGION TEN ------- Page Intentionally Blank ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Alaska Battery Enterprises, Region 10 Fairbanks, Alaska Status: Cleanup levels achieved during remedial activities have provided unrestricted residential or industrial access to the surface of the site. Ground-water monitoring will continue until 1995, and EPA recommends that no drinking water wells be drilled onsite until it can be confirmed that the ground water is clean. The site is currently unoccupied. Results and Benefits: Initial emergency removal and subsequent remedial actions have rendered the site clean enough for either industrial or residential use. This site was used to demonstrate a new soil cleanup technology that greatly reduces the amount of lead-contaminated soil that must be transported offsite. EPA concluded that actions taken at the Alaska Battery Enterprises (ABE) site have eliminated the need to conduct additional remedial actions. Background: The ABE site is located in an area zoned for commercial and residential use, and consists of a 0.75-acre facility and the surrounding Department of Transportation right-of-way in Fairbanks. The soil at the site was contaminated with lead, the result of past operations at the facility that included the recycling and manufacturing of batteries. At various times from 1969 until 1988, the owner/operator broke open used batteries, dumped battery acid on the ground, and buried battery cases onsite. Batteries were also stored outside for extended periods of time. In May 1987, a fire involved a large number of these batteries. Sampling conducted by EPA in 1988 found levels of lead in the soil greatly exceeding levels considered protective of human health and the environment. Because battery acid was also disposed of in the soil, the soil was very acidic in many places. Because acidic soil conditions can mobilize lead and other metals, there was concern that the ground water might be or become contaminated. Actions: Due to the elevated lead levels in the soil and their potential to migrate into the ground water, a removal action took place in the summers of 1988 and 1989. About 3,800 cubic yards of soil were removed and taken to an approved disposal facility. The continued concern about the threat to the ground water prompted the site to be added to the National Priorities List (NPL) in 1989. During the summer of 1991, EPA conducted a remedial investigation to characterize the amount and extent of remaining lead contamination. Results showed that, out of 24 soil sampling locations, only two surface and two subsurface sampling areas had lead concentrations that exceeded cleanup levels. Ground water was sampled from nine monitoring wells three times between June and October 1991. Results showed that the drinking water standard was exceeded at several of these sites. Paradoxically, however, analysis of the soils 'at these locations found that all of the detectible lead was bound up with the silt and clay particles and was, therefore, immobilized. B97 ------- Alaska Battery Enterprises, Region 10 (Continued) Ground-water monitoring will continue until the A total of 150 cubic yards of soil was excavated level of lead is within the acceptable range. and treated by the soil washing system. The excavated areas were later filled with the dean In the spring of 1992, the ABE site was selected sand and gravel. Contaminated fine particles for a demonstration of an innovative soil washing produced by the system were temporarily stored technology by EPA's Superfund Innovative onsite in drums and then taken away to a Technology Evaluation Program. This permitted hazardous waste disposal facility fa technology reduces the amount of contaminated the spring of 1993. soil by separating it into a clean fraction of sand and gravel and a contaminated fraction consisting of silt and day "fine" particles. 598 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Allied Plating, Inc., Region 1O Multnoxnah County, Oregon Status: During the removal action, all site contamination above EPA's selected health-based cleanup levels was excavated and disposed of properly. A deed restriction was placed on this property regarding the use of the ground water in the shallow aquifer, and continued ground-water monitoring is not planned for this site. A 5-year review will, however, be conducted to ensure that the land use remains industrial. The site is currently being used for crane maintenance. Results and Benefits: During the removal action, all site contamination above EPA's selected health-based cleanup levels was excavated and disposed of properly. The excavated area was backfilled with rock from a local quarry, and spray-covered with grass seed to prevent erosion and to minimize direct human contact with possible residual contamination. Currently, a portion of the site is used for industrial (crane maintenance) purposes; however, the part of the site where wastes were known to be disposed of is not in use. In the future, it is most probable that the area will remain industrial. Residential use of the area is a remote possibility. Based on the data collected in the remedial investigation, and the potential current and future risks estimated in the baseline risk assessment, no further action is necessary at this site to provide additional protection to human health and the environment. Background: This site occupies 1.5 acres in an industrial and commercial district of northeastern Portland. Allied Plating, Inc. began chrome-plating operations in 1957, and for over 25 years, discharged waste without pretreatment. Prior to 1969, wastes were discharged onto a low-lying area of the property, which drained into the Columbia Slough. After 1969, filling activities isolated the site and created a surface impoundment. A layer of plating waste that formed in this impoundment area was the main source of site contamination. Approximately 20,000 people live within 3 miles of the site, and approximately 1,500 of these individuals obtain drinking water from public and private wells within 3 miles of the site. Water from a weE located 1,700 feet from the site is used in food processing. Ground water is also used for irrigation. An apartment building and mobile home park are located nearby, but use city water. The Columbia Slough, which drains into the Willamette River, is about 600 feet northeast of the site. Both ground water and soil excavated from the site contained heavy metals, including chromium and lead. The soil also contained cyanide. Chromium, copper, and nickel were present in the impoundment sludge. Drainage from the site could have potentially contaminated the Columbia Slough. 599 ------- Allied Plating, Inc., Region 10 (Continued) Actions: As a. result of the disposal of wastes from the plating operations, the facility was required to submit a RCRA, Part A hazardous waste permit application. In 1981, the facility received interim status as a treatment, storage, and disposal facility (TSDF), and in 1982, a permit was issued. The company declared bankruptcy and ceased operations in 1984. In September 1984, EPA and the State Department of Environmental Quality (DEQ) jointly requested closure and post closure plans from the site owner. In November 1986, when the closure plans were not accepted, and actions under RCRA were not able to obtain site cleanup, EPA and the State DEQ reached an agreement transferring program jurisdiction from RCRA to Superfund. The site was Ested on the National Priorities List (NPL) on February 2, 1990, and the remedial investigation was conducted from January 1990 to April 1992. A pre-Record of Decision (ROD) removal action conducted from October 23,1992, to November 20,1992, successfully remediated the site. The ROD was signed on June 29, 1993, and indicated that no further action was required at the site. Also, continued ground-water monitoring is not planned for this site. 600 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET ARRCOM (Drezler Enterprises), Region 10 Kootenai County, Idaho Status: The ARRCOM site currently has a residence on it. As a result of remedial actions, the contaminated soil has been successfully removed from the site. Results and Benefits: The Spokane Valley - Rathdrum Prairie Aquifer that lies beneath the site and supplies crop irrigation and drinking water to the area has been protected from the waste oils and sludges. Background: Covering a little over 1 acre, the ARRCOM (Drexler Enterprises) site is located approximately 3 miles southwest of Rathdrum, Idaho. Operations conducted on the site from 1960 to 1982 involved recycling waste oils containing a variety of solvents, lead, and polychlorinated biphenyls (PCBs). These activities resulted in extensive soil contamination. Waste sludges, storage tanks, and tracks were left on the site when it was abandoned in 1982. The contaminants included volatile organics such as toluene, xylene, and methyl ethyl ketone in soils; heavy metals such as lead and mercury; and PCBs in soils. Actions: Approximately 350,000 people are served by the Spokane Valley - Rathdrum Prairie Aquifer underlying the ARRCOM site. An estimated 6,300 people live within 3 miles of the site. In 1983, EPA began removing and treating contaminants at the site. Tanks containing PCB-contaminated products were pumped and flushed. The volume of contents in the remaining tanks was approximately 32,000 gallons. Approximately 10,700 gallons of an oil and water mixture were recycled, 1,140 pounds of PCB flushingwere incinerated offsite, and 134 cubic yards of contaminated soil were disposed of in an approved landfill. In 1987, EPA continued to remove and segregate the onsite hazards. A containment tent was constructed for asbestos removal in the boiler room. Prior to disposal, the contaminated tanks and trucks were cleaned and disassembled. Approximately 2,000 cubic yards of contaminated soils were removed. In 1990, EPA removed approximately 1,500 cubic yards of soil contaminated with lead and PCBs. The site was backfilled with clean soil and regraded. 6O1 ------- Page Intentionally Blank 602 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET FMC Corporation, Region 10 Yakima, Washington Status: Unoccupied buildings remain onsite within a fenced area. As part of the remedial activities, ground water is being monitored to confirm that the removal of contaminated soils has been complete and that no ground-water contamination above health-based levels is present. Results and Benefits: FMC Corp. had never contested its status as a potentially responsible party (PRP) and has worked cooperatively with EPA to undertake the initial removal actions and subsequent remedial activities. As a result of remedial activities that removed onsite hazardous substances, the nearby population has been protected. The extensive surface remediation is considered complete, and a 5-year review is not required. Background: FMC leased this 1.14-acre property and operated the plant from 1951 to 1986 to manufacture pesticide dusts and liquids. Pesticide dusts were formulated at the facility throughout its operation. In the late 1970s, two buildings were added to formulate liquid pesticides, but both buildings were destroyed in 1986 during an explosion that occurred after the plant had closed. Spills, leaks, and other accidental releases of liquid formulation materials are believed to be the source of soil and concrete contamination in and adjacent to these areas. Between 1952 and 1969, FMC disposed of wastes containing pesticides in an onsite pit. An estimated 2,000 pounds of materials were discarded in the pit. Raw material containers, soil contaminated by leaks or spills from process equipment, broken bags, and off-specification materials were dumped into the pit and covered with dirt. Most of the surrounding land use is zoned for light industrial, though a two-family residential zone borders the western edge of the property. Four schools are within 1 mile of the site. The population within a mile is approximately 10,000 persons, and the closest residence is only 200 yards away. Actions: Due to the concentrations of pesticides found in the waste pit, this site was listed on the National Priorities List (NPL) in 1982. A preliminary investigation was performed that same year. In 1983, the State issued an Administrative Order to FMC to conduct ground-water testing to assess the extent of contamination. In 1987, EPA issued an Administrative Order to FMC to carry out remedial investigations. The sampling showed high levels of DDT and other pesticides in the waste pit area. In June 1988, the PRP conducted the removal of approximately 500 tons of contaminated soil. Pit samples were then analyzed for organochlorine pesticides; because soil contamination was found above target levels, an additional 350 tons of soil were removed. Onsite incineration was performed to treat the contaminated concrete and debris. Following incineration, the ash was analyzed to determine ------- PMC Corporation, Region 10 (Continued) leachability and contaminant destruction. When health-based cleanup goals were met, the ash was used for backfill onsite. 6O4 ------- SUPERFUND SITE COMPLETED NFL SITE FACT SHEET Joseph Forest Products, Region 10 Wallowa County, Oregon Status: Construction activities at this site were completed in August 1993. Ground-water monitoring will be conducted by EPA and the Oregon Department of Environmental Quality for 2 years. Because hazardous substances will remain on site above levels allowing for unlimited use and unrestricted exposure, a 5-year review will be conducted in April 1998. Results and Benefits: The selected remedy eliminates the principal threat posed by the conditions at the site by reducing the potential for human exposure to high concentrations of metals detected in the site soils. The remedy requires monitoring of the ground-water contamination for 5 years. The nearby Wallowa River, the onsite spring, and the two springs in the city of Enterprise (less than 1 mile from the site) were sampled and showed no elevated levels of dissolved arsenic, copper, or chromium. The chosen remedy allows for industrial use of the treatment building area and residential use for the remainder of the site. Background: The Joseph Forest Products site was placed on the National Priorities List (NPL) in 1989. The site is located about 3/4 mile northwest of the City of Joseph, in Wallowa County, in an agricultural and industrial area of northeast Oregon. The site is 18 acres and encompasses an inactive wood-treatment facility. The site is currently owned by the Clifford C. Hinkley Estate. Joseph Forest Products operated the site in 1974 and again from 1977 to 1985. A fire in 1974, after only 2 weeks of operation, destroyed the buildings on the site and led to contamination of the surficial soils and ground water at the site with the treatment chemical (chromated copper arsenate). Sampling of the surface water and local drinking water wells showed no contamination. Joseph Forest Products filed for bankruptcy in June 1984 and ceased operations in 1985. Actions: A preliminary removal action was conducted in the fall of 1991 to remove the soils around the treatment building, which showed the highest contamination. The final removal action was implemented in May 1993 and involved excavation and offsite disposal of contaminated surface and subsurface soil, demolition and offsite disposal of the treatment building, decontamination of the treatment equipment followed by recycling of scrap metal, and decontamination of the drip pad. Asbestos was removed and disposed offsite. The two underground storage tanks were removed and disposed in accordance with State requirements. Ground-water monitoring wiE continue for 2 years. ------- Page Intentionally Blank 606 ------- Su SITE COMPLETED NPL SITE FACT SHEET Lakewood Site, Region 10 Lakewood, Washington Status: All remediation construction activities at the Lakewood Site have been completed. Ground- water treatment is ongoing, and it is hoped that cleanup levels will be attained within the next 2 years. The site is currently being used for commercial purposes. Results and Benefits: Treating the contaminated soil, removing contaminated sludge, and treating the ground water until the cleanup levels have been reached has reduced the potential for exposure to hazardous materials and has eliminated the need for institutional controls. Future contamination of the ground water and surrounding soils has also been prevented. Background: The Lakewood Site is located south of Tacoma, Washington, and encompasses a 1-square mile area. A laundry and dry-cleaning facility known as Plaza Cleaners has operated on the site for several years. Plaza Cleaners discharged solvents (e.g., trichloroethylene (TCE), tetrachloroethylene (PERC), and cis-1,2- dichloroethylene (cis-1,2 DCE)) into its permeable septic system and disposed of other wastes suspected of containing solvents onto the ground outside of the establishment. In July 1981, EPA discovered solvent contamination in two drinking water supply wells to the south of the site. In August 1981, these wells were temporarily taken out of service while monitoring wells were installed and contaminated surficial soil in the source area was excavated. The site was added to the National Priorities List (NPL) in December 1982. The Lakewood Site is predominantly residential and commercial. The Lakewood Water District, which serves the surrounding area, operated the two drinking water wells located on the site. McChord Air Force Base is located southeast of the site. Actions: In 1983, Plaza Cleaners and the Washington State Department of Ecology reached a stipulated agreement in which Plaza Cleaners initiated new solvent disposal practices and replaced and removed contaminated soil with clean fill. In November 1984, EPA installed two air strippers to treat the two drinking water production wells operated by the Lakewood Water District. From August 1984 to July 1985, EPA installed 12 ground-water monitoring wells, excavated the waste line at Plaza Cleaners, and took numerous soil and water samples to determine the extent of the contamination. In September 1985, the Record of Decision (ROD) was signed. Remedial activities included: continued operation of the ground-water treatment system; continuation of routine sampling and analysis of ground water; installation of additional ground-water monitoring wells; upgraded construction for existing ground-water monitoring wells; excavation and removal of septic tanks and drain field piping from the site; and placement of C/V7 ------- Lakewood Site, Region 10 (Continued) administrative restrictions on the installation of the soil in the septic tanks with the SVES; and usage of ground-water wells and the and continuing soil and vapor testing, excavation of soils. In November 1986, an amended ROD included the following Onsite soil remedial activities were completed modifications: installing a soil vapor extraction by July 1992. Offsite disposal of contaminated system (SVES) to treat the contaminated soil; sludge was completed from September 1992 to reducing in the amount of septic tank contents February 1993. Ground-water treatment is to be removed and treated offsite; leaving the currently ongoing and is expected to continue septic tanks in place and treating the remainder until cleanup levels are attained at the production wells. 608 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Northside Landfill, Region 10 Spokane, Washington Status: Und6r EPA oversight, the City of Spokane completed construction of the protective cap over the landfill to May 1993. Currently, a landfill gas collection system captures and burns methane gas, while a ground-water pump and treatment system prevents contaminated ground water from migrating offsite. In addition, the City of Spokane and the local community are investing $1 million to landscape the site. The entire site will be seeded for grass, and the natural vegetation of 40 acres of undisturbed woods along the perimeter of the property will be enhanced. Results and Benefits: Cleanup of the Northside Landfill is an example of effective collaboration with State and local governments in addressing a Superfund hazardous waste site. EPA worked with the State and city to close this municipal landfill in a timely and efficient manner. The results of this coordinated effort are that residents have a clean source of drinking water, and a state-of- the-art 150-acre plastic landfill cover now guards against the further spread of contaminants. To fill the need for waste disposal in the area, a new waste-to-energy incinerator was completed in 1991. This 25-megawatt plant converts waste formerly destined for the Northside Landfill and many other small county landfills into electricity. In 1992, the Incinerator processed 293,000 tons of garbage and produced 150-milHon kilowatt- hours of electrical energy. Background: The landfill site covers 345 acres in northwestern Spokane, Washington. The active area of the landfill occupied 150 acres directly above a large aquifer, the primary source of drinking water for 177,000 residents of Spokane. The landfill opened in 1931 for the disposal of light commercial and residential garbage. While operating, the site was the largest landfill in the county and received most of Spokane's refuse, including small amounts of hazardous waste. For almost 10 years, sludge from the municipal sewage treatment plant, laden with heavy metals and organic solvents, was disposed of to the tandfiE. Rainwater drained through the wastes and seeped into the ground water, contaminating the wells of nearby residents. Heightened awareness brought about by the enactment of the Superfund program caused local officials to take a closer look at this municipal dump. In 1981, the city sampled the ground water beneath the landfill and found evidence of contamination. In 1982, additional sampling revealed that weUs adjacent to the site were poEuted. The city quickly responded by supplying bottled water until the affected residences were hooked up to the municipal water supply in 1983. When the landfill was ready for closure, the State contacted EPA's Superfund program for assistance. 609 ------- Northside Landfill, Region 1O (Continued) Actions: In 1986, EPA placed the site on the NPL. Later that year, under a cooperative agreement with EPA, the city and the State conducted investigations to determine the nature and extent of contamination and the risks posed to the area. The studies, completed in 1988, determined that the site needed immediate attention. The plan was completed in September 1989 and involved the following activities: * Closing and capping the landfill; « Pumping and treating contaminated ground water; • Providing an alternate source of drinking water to residents with contaminated wells; • Controlling potentially dangerous landfill gases; and • Monitoring the ground water for the next 30 years. In January 1991, city cleanup crews began operating a landfill gas collection and treatment system on the boundaries of the site. The ground-water pump and treatment system began with pilot tests in April 1992 and currently treats 1,000 gallons of water a minute. Water is sent to the municipal sewage plant for further treatment and disposal. An impermeable protective cap was completed in May 1993, 6 months ahead of schedule. 610 ------- Su SITE COMPLETED NPL SITE FACT SHEET Pesticide Lab/Yakima, Region 10 Yakima, Washington Status: The selected remedy for the Pesticide Lab/ Yakima site was "No Further Action." The site was the subject of remedial activities pursuant to the Resource Conservation and Recovery Act (RCRA) and is to be resold for unlimited use. Results and Benefits: Removing contaminated soil, sludge, and equipment until the cleanup levels were reached has reduced the potential for exposure to hazardous materials and has eliminated the need for institutional controls. Future contamination of the ground water and surrounding soils has also been prevented. Background: The Pesticide Lab/Yakima site is a 10-acre parcel of land at the YARL facility in Yakima, Washington. The primary activity at the laboratory involves the development of insect control technologies that benefit fruit and vegetable agriculture in the Pacific Northwest. Workers at the laboratory used a modified septic and drainfield system to discharge dilute waste pesticide compounds. Approximately 5,000 gallons of rinsate from equipment cleaning operations, and less than 250 gallons of residual pesticide solutions were discharged into the system annually for approximately 20 years. In September 1980, YARL submitted a RCRA Part A permit application for the septic system and received interim status. A preliminary assessment and site investigation (PA/SI) in 1982 revealed soil contamination due to discharges from the septic system. Ground- water contamination was also believed likely, and the site was placed on the National Priorities List (NPL) in September 1983. The Pesticide Lab/Yakima is situated in the south central section of Washington, east of the Cascade Mountains. Approximately 10,000 people live within 1 mile of the site, and about 50,000 people use the ground water for drinking purposes. Action: In 1988, YARL removed the drainfield, sampled soil within and outside the excavated drainfield area, sampled ground-water monitoring information from four monitoring wells (installed in April 1988), and performed in-situ aquifer testing. Results from this study revealed that the ground water had not been affected by the YARL and the likelihood of ground-water contamination was low. The study also detected a variety of pesticides and carrier solvents in the tank sludge and the drainfield. As a result, EPA decided that the site was subject to the requirements for hazardous waste treatment, storage, and disposal facilities under RCRA. A closure plan for the site was finalized and approved in January 1990. The closure plan included: removing and disposing of the septic tank contents, the septic tank, and a washdown pad associated with the septic tank system; excavating soil from around the septic tank and washdown pad; excavating soil from around the washdown pad area; and removing the pipes from the drainfield system. Each activity was followed by sampling of the soil in and around the removal areas, as well as fill ------- Pesticide Lab/Yakima, Region 10 (Continued) sampling soil contained in the septic tank and on the washdown pad. Approximately 40 cubic yards of contaminated soil were removed from the site. Because the site cleanup was performed satisfactorily, pursuant to RCRA requirements for interim status facilities, EPA selected a remedy of "No Further Action" for the site. 612 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Silver Mountain Mine, Region 10 Okanogan County, Washington Status: All remedial activities have been completed for the Silver Mountain Mine site. Like most of the surrounding properties, the land is now used primarily for cattle grazing. For safety, the entrance to the mine has been closed. To ensure that contaminant levels in the affected aquifer do not exceed the established environmental standards, ground-water monitoring is continuing. The affected site areas have been replanted with native grasses. Results and Benefits: Now that the old arsenic-tainted watering source has been eliminated, beef cattle grazing among the scrub vegetation surrounding the Silver Mountain Mine site have a safer water supply. This reduces the potential for toxins to enter the human food chain. Cleanup of the contaminated site has also eliminated a potential threat of accidental exposure to arsenic and cyanide to the few people living nearby. Today, the 5-acre Silver Mountain Mine site is part of a 358-acre, privately owned parcel. Because of the remoteness of the area, the property is not expected to be developed in the near future. Background: Mining operations on the site can be dated as far back as 1902. A sporadic history of gold, silver, and copper mining on the site continued until the 1960s. Between 1980 and 1981, a leach heap consisting of previously mined materials (tailings) was constructed for further extraction of precious metals. The process involved pouring a sodium cyanide solution over the top of the heap and allowing the runoff to drain into a leachate basin. Target metals were then extracted. When the operators abandoned the site in 1983, the tailings and the arsenic- and cyanide-contaminated leachate were left in place. Approximately 5,200 tons of unprocessed mixed materials, commonly known as mine dump, were also abandoned near the heap. Ground water beneath the site contained high levels of dissolved salts, metals, and cyanide associated with the mine dump material. The size of this aquifer and the historically substandard quality of the ground water makes it an unlikely drinking water source; however, a few private wells are located within 3 miles of the site that are used for drinking, irrigation, and livestock watering. Surface water generated from mine drainage was also used as a livestock watering supply. Analysis of this water revealed arsenic at levels above the Safe Drinking Water Standards. Actions: In 1982, the State of Washington took action to treat the cyanide at the site using sodium hypochlorite. In 1984, EPA conducted a preliminary assessment and inspection, and subsequently added the site to the National Priorities List (NPL). In 1985, the State conducted a site stabilization effort that included removing liquids from the leachate basin and installing a 33-mil plastic cover over the heap and basin. Empty cyanide drums were removed, and a fence was installed. The long-term remedial phase is being conducted by the State ------- Silver Mountain Mine, Region 10 (Continued) and a responsible party. This phase includes consolidating and capping the mine tailings, fencing the area, and providing a clean well for domestic watering. Monitoring of the ground water will continue. 614 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Toftdahl Drums, Region 10 Clark County, Washington Status: All remedial cleanup actions at the site have been completed. The site no longer poses a threat to public health or the environment. Annual monitoring by the Washington State Department of Ecology continues to confirm that no contamination is linked to the site. The site was deleted from the National Priorities List (NPL) in December 1988. The site is currently vacant. Results and Benefits: Although the chemical data from drummed waste and soil sampling conducted during the pre-remedial investigation (RI) showed that the Toftdahl operation had introduced some contaminants to the site's environmental media, analytical results indicated no significant impact to the ground water, surface soil, or surface water. The site, therefore, was not considered a potential source of public health risks. When all drums were removed in 1985, access restrictions imposed earlier were no longer needed. The fence surrounding the burial area was removed at the request of nearby residents. EPA announced the deletion of the Toftdahl Drums site from the NPL in the December 3, 1983, Federal Register. Background: The owner of the 15-acre Toftdahl Drums site conducted his drum cleaning and resale operation from early 1970 through the mid- 1970s. Of the approximately 200 drums brought to the site for cleaning, about 50 were buried on the property, even though they contained unknown quantities of industrial waste. When the property was sold in the mid- 1970s, the new owner discovered the burial area 500 feet from the cleaning area. Sometime between 1978 and 1982, 38 drums were removed and land-disposed offsite, while the remaining 12 drums were reburied at another onsite location. Actions: The response actions carried out by the State of Washington's Department of Ecology and EPA began in 1983. After the discovery of six more crushed and rusting drums, a fence was erected around the burial area. In 1984, five potential burial locations were identified outside the fence and one area inside the fence. Further investigation of the area outside the fence uncovered metal debris and paint-chip-like debris that were addressed in a subsequent cleanup action. In addition to conducting soil, surface water, and ground-water sampling, the State of Washington excavated 20 exploration pits. These excavations yielded five crushed drums and parts of others which the State removed and disposed of along with 40 cubic yards of contaminated soils. During the removal, contaminated soils were placed in polypropylene bags. All contaminated materials were disposed of at a federally approved hazardous waste facility. Sampling and monitoring of private wells are expected to continue until 1998 to ensure the long-term effectiveness of the cleanup. 615 ------- Page Intentionally Blank 616 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET United Chrome Products, Inc., Region 10 Corvallis, Oregon Status: Remedial construction activities have been completed. Contaminated soil and debris have been removed or treated. Ground-water extraction and chromium reduction are ongoing. A fence surrounds the site, and access to the site is currently restricted. Results and Benefits: Removing the heavily contaminated soil and debris from the site, treating the remaining contaminated soil from the source areas, treating the ground water, and restricting site access have reduced the potential for exposure to hazardous materials. Future contamination of the ground water, surface water, and surrounding soils has also been prevented. Background: The United Chrome site consisted of a single building on approximately 1.5 acres located south of Corvallis, Oregon. The site was owned by United Chrome Products, Inc., a former industrial chrome plating facility. The company manufactured and repaired hard chrome plated parts for machines owned by wood products companies. From 1956 to 1983, United Chrome Products disposed of chrome sludge in a disposal pit west of the building. In 1982, accumulated chrome sludge in plating tanks was removed and disposed of by the company. In 1983, as a result of two Oregon Department of Environmental Quality (DE) Notices of Violation, the company removed chrome sludge from the disposal pit area and placed it in drums for later disposal at a RCRA-pennitted land disposal facility. An EPA field investigation in June 1983 revealed chromium contamination of the surface water, ground water, and soils as a result of the company's disposal operations. The site was placed on the National Priorities List (NPL) in September 1984. United Chrome Products ceased all operations in early 1985 and sold the equipment and contents of the facility building in May 1985. The area surrounding the United Chromium site is primarily residential and industrial in nature. Two city wells are located approximately 3,000 feet northeast of the site; however, the City does not use these wells for its water supply. Approximately 42,000 people live within 3 miles of the site. The City of Corvallis obtains some of its water from the Willamette River, which formerly received drainage from ditches and surface water from the site. Action: EPA conducted an immediate removal action at the United Chrome site in 1985. Activities included the removal of 8,130 gallons of chromium-contaminated liquids and 11,000 pounds of chromium-contaminated solids. Remedial construction activities at the site were conducted in three phases. Phase I consisted of: decontamination and demolition the United Chrome building; excavation and offsite disposal of the heavily contaminated soil from the former disposal pit and plating tank areas and debris from the building; construction of two infiltration basins to flush chromium contamination from the soils near the source areas; installation of shallow wells to extract chromium- 617 ------- United Chrome Products, Inc., Region 10 (Continued) contaminated ground water from the upper zone; and construction and initial operation of an onsite ground-water treatment plant. Phase I construction began in December 1987 and was completed in late 1988. Approximately 1,000 tons of contaminated soil and debris were disposed of offsite. Phase II remedial activities consisted of: continued operations of the treatment plant; modifications to the plan to enhance cleanup operations; installation of deep wells to monitor and extract chromium-contaminated ground water from the lower zone; construction to reroute the local surface water drainage ditch around the site to prevent contamination form entering the nearby creek and river; and removal of the remaining highly contaminated ditch sediments. Phase II remedial activities were completed by September 1991. Phase III remediation encompassed continued operation of the treatment plant and modifications to the remedial facilities to enhance cleanup operations. Ground water with reduced concentrations of chromium was routed to a local publicly-owned treatment works (POTW) instead of the onsite facility. Phase HI operations began in October 1991 and are expected to continue until ground-water cleanup levels have been met. 618 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Western Processing Company, Inc., Region 10 Kent, Washington Status: Remedial activities have been completed. Contaminated soil and debris have been removed. The site is currently vacant. Results and Benefits: Removing the contaminated soil and debris from the site and treating the ground water have reduced the potential for exposure to hazardous materials. Future contamination of ground water, surface water, and surrounding soils has also been prevented. Background: The Western Processing Company, Inc. operated on an 11-acre parcel of land located approximately 2 miles north of Kent form 1961 to 1983. Originally a company that reprocessed animal by-products and brewer's yeast, Western Processing expanded to recycle, reclaim, treat, and dispose of many different types of industrial and hazardous wastes. After much attention form local authorities in the 1970s, EPA inspected the facility in 1981 to determine if it was in compliance with the Resource Conservation and Recovery Act (RCRA). After an analysis in 1982 revealed that hazardous substances had been released into the shallow aquifer and the soils at the site, EPA issued a Comprehensive Environmental Response Compensation and Liability Act (CERCLA) Section 106 order in 1983 requiring the owners to provide assurances that they would conduct a cleanup. When these assurance were not obtained, EPA conducted and immediate removal to stabilize the site. Over 127 drums of polychlorinated biphenyls (PCBs), 1,944 cubic yards of solidified paint sludges, 24,700 gallons of recycled solvents, and 447,500 gallons of mixed contaminated liquids were removed from the site. EPA also installed a stormwater runoff system; capped a material pile with an impermeable flexible cover, and regraded portions of the site as part of the immediate removal action. The Western Processing facility was permanently dosed by a court order in July 1983 and was placed on the National Priorities List (NPL) in September 1983. The Western Processing site is bounded on the northwest by Mill Creek, which flows into the Green River, a tributary of the Duwamish River, which ultimately empties into Puget Sound at Seattle. Approximately 10,000 people live within 3 miles of the site, 2,000 of whom depend upon ground water for drinking water. Action Under a consent decree signed in July 1984, a group of 190 Potentially Responsible Parties (PRPs) undertook the surface cleanup (designated Phase I). Over 2,400 truckloads of chemical waste and contaminated soil were removed from the site. THe site was then graded to prevent stormwater runoff. A plastic-lined pond was constructed to contain the collated stormwater, and a portable treatment plant was brought onsite to treat the water. Phase I was completed in November 1984. Approximately 6,000 gallons of dioxin-contaminated liquid found at the end of Phase I were treated onsite with a potassium hydroxide, polyethylene glycol 619 ------- Western Processing Company, Inc., Region 10 (Continued) (KPEO) mobile chemical dechlorination process in 1986. In June 1986, PRPs signed a Phase II Consent Decree for the subsurface cleanup of the site that was identical to that required in the Record of Decision (ROD) signed to September 1985. Remedial activities included: an intensive onsite and offsite soil and subsurface waste sampling program; excavation and offsite disposal of the most highly contaminated soils and nonsoil material; excavation of all soils exceeding soils that were above background levels; construction and operation of a ground-water extraction and treatment plant; intensive ground-water and surface water monitoring; attainment of the Mill Creek performance standard and excavation of contaminated creek sediments; and construction of a cap over the site following completion of pumping. Over 25,000 cubic yards of subsurface soils and wastes were excavated from the site and hauled to a Class I landfill. Over 10,000 cubic yard of offproperty contaminated soils were excavated. A small portion of this soil was transported to the Class I landfill; the remainder was used along with clean soil onsite as backfill. Over 54 new monitoring well were installed, and an onsite lab was constructed to facilitate the ground- water monitoring program. Approximately 206 shallow-well points and 13,000 feet of infiltration trenches were installed during construction of the shallow ground-water extraction and infiltration system in May 1988. The ground-water treatment plant was completed and began operation in August 1988. A final remediation act was to install a slurry wall 45 feet deep, around the site to contain contaminated site ground eater during pumping and increase the efficiency of the pumping effort. The wall was completed in October 1988. In December 1988, representatives form EPA, State, and local offices conducted a final inspection of the site and certified that remediation construction was complete. Ground-water treatment is still ongoing at the site. 620 ------- SUPERFUND SITE COMPLETED NPL SITE FACT SHEET Takima Plating Co., Region 10 Yakima, Washington Status: All remedial construction activities have been completed. Ground-water monitoring will continue on a quarterly basis to assure that cleanup goals for the ground water are met and sustained. Institutional controls are in place to prevent further contamination. The site is currently vacant. Results and Benefits: Cleanup at this site was accelerated as a part of the Superfund Accelerated Cleanup Model Program. Removal of contaminated soils and drums, as well as tanks of plating wastes, has reduced the threat of exposure to contaminants in this densely populated area. Background: Yakima Plating Co., a nickel-chrome automobile bumper replating operation, has been in operation since 1965. This facility occupies the western 0.94 acres of a 2-acre parcel shared with a separate business. The plating operation used approximately 20 to 30 aboveground holding tanks. These tanks were used for cleaning, plating, and rinsing during the electroplating process. Rinse water and spent plating tank solutions were commonly disposed of in a floor drain in the plating room. The floor drain connected to an underground sedimentation tank and drainfield line that collected the sedimentation tank overflow and distributed the wastewater to subsurface soils. This site is located two blocks south of the city limits of Yakima in a mixed light commercial and residential neighborhood. Four schools are within 1 mile of the site. The closest is approximately 1,000 feet west of the site. The nearest residence is 200 feet southeast of the site. Many of the residences adjacent to the site use private ground-water wells for their water supply. There are approximately 410 private wells and 54,200 residents within 1 mile of the site. The nearest well is 225 feet from the company's drainfield. Actions: In 1991, the EPA selected a remedy to cleanup the site, which included removing drums and tanks containing plating wastes, and removing surface and subsurface soils offsite. To ensure that use of an onsite building would not cause future site contamination, institutional controls were developed. Ground-water monitoring will also continue to ensure the removal of the contamination source. 621 ------- Page Intentionally Blank 622 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Bunker Hill Mining, Region 10 Shoshone County, Idaho Status: Six removal actions have reduced the most immediate risk of lead exposure. Remedial actions that address the remaining widespread lead contamination at this 21-square-mile site will continue. Results and Benefits: As a result of the removal actions, the immediate threat of contact with lead-contaminated soil in populated areas has been reduced. The ongoing remedial actions will reduce the likelihood that accidental exposure with the contaminants will occur, and ensure that safe levels of lead in the air, soil, ground water, and surface water are achieved. Former mining operations have caused erosion and fugitive dust from barren hillsides. These were likely sources for contaminant migration. Approximately 3,200 acres of barren hillside are being revegetated. Background: The Bunker Hill Mining and Metallurgical Complex site includes the town of Pinehurst on the west and the town of Kellogg on the east, and is centered on the Bunker Hill industrial complex. The site has been impacted by over 100 years of mining and 65 years of smelting activity. The complex occupies several hundred acres in the center of the site between the towns of Kellogg and Smelterville. EPA and the State have designated a 21-square-mile study area to conduct the remedial investigation and feasibility study. In 1973, a fire at the lead smelter complex reduced the air pollution control capacity. Total particulate emissions were measured from the time of the fire through November 1974, varying between 15 and 160 tons per month and containing 50 to 70 percent lead. Emissions prior to the fire varied between 10 to 20 tons per month. The immediate effects of increased lead emissions were observed in a 1974 public health study where a significant number of children had elevated blood lead levels. Several local children were diagnosed with clinical lead poisoning and required hospitalization. In 1977, tall stacks (>600 feet) were added to the smelting operations to more effectively disperse contaminants from the complex. These devices decreased the area's sulfur oxide concentrations in the late 1970s. The smelter and other Bunker Hill activities ceased operations in December 1981. Although in recent years some wastes have been shipped offsite for disposal in landfills, thousands of tons offsludge, tailings, flue dust, and other wastes remain at the complex. The contaminants of concern for the site are antimony, arsenic, cadmium, copper, lead, mercury, and zinc. Lead has been identified as the primary contaminant of concern. Actions: Two Superfund-financed removal actions (1986 and 1989) addressed the lead-contaminated residential soils. One removal action was ------- Bunker Hill Mining, Region 10 (Continued) financed by the potentially responsible parties (PRPs), but was performed by EPA and State in 1990 to address the residential soils. PRPs have conducted three removal actions: one at the Smelter Complex (1989), one concentrating on the hillside revegetation (1990), and the third for residential soils (1991). In 1986, 16 public properties (parks, playgrounds, and road shoulders) were selected for an immediate removal action because these properties contained high concentrations of lead and were frequented by many area children. The action consisted of placing a barrier between the children and the underlying contaminated soil. Six inches of contaminated materials were excavated, and clean soil was replaced. In 1989, EPA and the State began the residential soil removal program. To date, over 250 homes have had the top 6 to 12 inches of soil excavated and replaced with clean sod. The excavated soil is being stored in nonpopulated areas. In 1989, access to the contaminated areas was restricted, and plans to control dust and to contain a copper dross flue pile were formulated. Ongoing efforts include erosion control byre-establishing a native, closed, coniferous forest and understory vegetative cover to approximately 3,200 acres of surrounding barren hillsides. Tree planting is expected to be completed in 1996. 624 ------- SUPERFUND SITE REMOVAL ACTION SITE FACT SHEET Wycoff/Eagle Harbor Site, Region 10 Bainbridge Island, Washington Status: Remedial actions, including the placement of sediments in the East Harbor unit of Eagle Harbor, were completed by mid-March 1994 to protect fish migration. Removal activities at the Wycoff facility, which include asbestos removal, disposal of sludges, and treatment of waste water and contaminated ground water, continue. Results and Benefits: EPA is using the SACM (Superfund Accelerated Cleanup Model) approach at Eagle Harbor. The cleanup takes advantage of a source of clean sediments available from ongoing Army Corps of Engineers (COE) activities at the mouth of the Snohomish River. The COE routinely dredges rivers around Puget Sound for navigation purposes. Increasingly, the COE is trying to find "beneficial uses" for clean dredged material. EPA expects that this phase of the cleanup will cost approximately $3 million, with savings up to $2 million when compared to estimates based on other sediment sources. Benefits of this early action cleanup in Eagle Harbor include: • Controlled movement of contaminated sediments; • Clean habitat; • New organisms established quickly, and • Reduced exposure up the food chain. Background: The Wycoff/Eagle Harbor site was listed as a Superfund site for cleanup of hazardous waste in 1987. EPA is currently addressing the site in three units: the Wycoff Facility, the East Harbor, and the West Harbor. EPA issued a remedial plan for the mercury-contaminated sediments near the former West Harbor shipyard in September 1992, and is currently conducting a phased cleanup of the East Harbor sediments that are contaminated with polynuclear aromatic hydrocarbons (PAHs). Bottom sediments in much of Eagle Harbor are contaminated with chemicals from wood treating and shipyard operations that are toxic to marine organisms. A public health advisory is currently in effect that recommends against eating fish and shellfish from Eagle Harbor. Actions: Work began in mid-September 1993 on the first phase of sediment cleanup. EPA and the COE are covering contaminated sediments near the mouth of the harbor with clean sandy materials. The materials are dredged from the Snohomish River as part of a project to keep the river channel open for ship navigation. Over a 6- month period, approximately 275,000 cubic yards of clean sandy sediments will be brought to the East Harbor and gradually placed over 54 acres of contaminated harbor bottom to provide a clean habitat for marine life. Weekly water sampling is performed to indicate possible impacts on the water environment. In addition, an underwater camera is used to show where more clean material is needed. The camera enters the sediment surface and photographs a side view of the top 7 inches. ------- Wycoff/Eagle Harbor Site, Region 10 (Continued) Monitoring to date confirms that the sediment buried sludge. The sludge represents an ongoing is landing in smooth, uniform layers. A number source of contamination to the ground water at of pictures show worms in the new material, the facility and is a long-term threat to the indicating that gradual layering is allowing harbor. To date, nearly 2,000 tons of sludge organisms to move upward. The work will have been removed from the site and disposed continue with monitoring until mid-March, of at a hazardous waste disposal facility. Over when work must stop to protect juvenile and 110,000 gallons of oil and 8,000 tons of sludge migratory fish. from one onsite tank have been readied for future disposal. Approximately 140,000 gallons Removal activities at the Wyeoff facility continue, of oily waste water have been treated onsite. focusing on the removal of tank sludge and 626 ------- |