&EPA United States Environmental Protection Agency Solid Waste And Emergency Response (5201 G) SUPERFUND: EPA/540/R-95/106 PB95-962938 9200.5-736C May 1995 Progress at National Priority List Sites OKLAHOMA "A/ Printed on Recycled Paper 1995 UPDATE ------- How to Use the NPL Book VV ,rn The site fact sheets presented in this book are comprehensive summaries that cover a broad range of information. The fact sheets describe hazardous waste sites on the NPL and their locations, as well as the conditions leading to their listing ("Site Description"). The summaries list the types of contaminants that have been discovered and related threats to public and ecological health ("Threats and Contaminants"). "Cleanup Approach" pres- ents an overview of the cleanup activities completed, underway, or planned. The fact sheets conclude with a brief synopsis of how much progress has been made in protecting public health and the environment. The summaries also pinpoint other actions, such as legal efforts to involve polluters responsible for site contamination and community con- cerns. The fact sheets are arranged in alphabetical order by site name. Because site cleanup is a dynamic and gradual process, all site informa- tion is accurate as of the date shown on the bottom of each page. Progress is always being made at NPL sites, and the EPA periodically will update the site fact sheets to reflect recent actions. The following two pages show a generic fact sheet and briefly describe the information under each section. How Can You Use This State Book? You can use this book to keep informed about the sites that concern you, particu- larly ones close to home. The EPA is commit- ted to involving the public in the decision making process associated with hazardous waste cleanup. The Agency solicits input from area residents in communities affected by Superfund sites. Citizens are likely to be affected not only by hazardous site conditions, but also by the remedies that combat them. Site cleanups take many forms and can affect communities in different ways. Local traffic may be rerouted, residents may be relocated, temporary water supplies may be necessary. Definitive information on a site can help citizens sift through alternatives and make decisions. To make good choices, you must know what the threats are and how the EPA intends to clean up the site. You must under- stand the cleanup alternatives being proposed for site cleanup and how residents may be affected by each one. You also need to have some idea of how your community intends to use the site in the future, and you need to know what the community can realistically expect once the cleanup is complete. The EPA wants to develop cleanup methods that meet community needs, but the Agency only can take local concerns into account if it understands what they are. Information must travel both ways in order for cleanups to be effective and satisfactory. Please take this opportunity to learn more, become involved, and assure that hazardous waste cleanup at "your" site considers your community's concerns. ------- NPL LISTING HISTORY Provides the dates when the site was Proposed, made Final, and Deleted from the NPL. SITE RESPONSIBILITY Identifies the Federal, State, and/or potentially responsible parties taking responsibility for cleanup actions at the site. ENVIRONMENTAL PROGRESS Summarizes the actions to reduce the threats to nearby residents and the surrounding environment and the progress towards cleaning up the site. SITE NAME STATE EPA ID# ABCOOOOOOO Site Description EPA REGION XX COUNTY NAME LOCATION Other Names: : xxx xxxxx xxxxxxxxxxxx xxxxxx xxxxxxxxx xxxxxxxx xxxxxxxxxxxxx : : xxxxxxxxxx xxxx xxxxxxxx xxxx xx xxxxxxxxx xx xxxxxx xxxxxxxx 1 : xxxxxxxxxxxxx xx xxxxxx xxxx xxxxx xxxx x x XXXXXXX XXX XXxJfeteiXXXXXX XXXXX XXXXXX XXXXXXXX XXXXXXXX XXXX XXXXXXXXXX : xxxxxxxxxxxx xxxxxxxxx^wytjc xxx xx xxxxxxxxx xxxxx xxxx xxxx xxxxx xxxxxxx xxxxxxxx xxxxxxxx xxxxx xxxx xxxxx xxx xxx xxxxxx XXXXXXXXXXXX XX XXXXXXX XXX XXXXX XXX*M*XXX XXXXXX XX XXXX XXX XXXXX XXX XXXXX XXX XXXXX Site Responsibility: *** xxxxxx xxxxxxxxx xxxxxxxx xxxxxxxxxxxxx xxxxxxxxx NPL Listing History Proposed XX/XX/XX Final XX/XX/XX Threats and Contaminants xxxxxx xxx xxxxx xxxxxxxxxxxx xxxxxx xxxxxxxxx xxxxxxxx XXXXXXXXX XXXXXXXXXXXXX XXXXXXXXXX XXXX XXXXXXXX XXXX XX XXXXXXXXX XXXXXXXX XXX XXXXXXXXXXXX XXXXX XXX XXXXXXXXXXXXX XX XXXXXX XXX XXXXXXXXXX XXXXXXXX XXXXXXX XXX XXXXXX XXXXXX XXXXX XXXXXX XXXXXXXX XXXX XXXXXXXXXX XXXXXXXX XXXXXXXXXXXX XXXXXXXXX XXXX X XXXX XXXX XXXXX XXXXXXX XXXXXXXX XXXXXXXX XXXXXXXXX XXXX XXXX XXXXX XXXX Cleanup Approach xxxxxx xxx xxxxx xxxxxxxxxxxx xxxxxx xxxxxxxxx xxxxxxxx xxxxxxxxxxxxx XXXXXXXXXXXXX XXXXXXXXXX XXXX XXXXXXXX XXXX XX XXXXXXXXX XX XXXXXX XXXXXXXX XXXXXXXXXXXX XXXXX XXX XXXXXXXXXXXXX XX XXXXXX XXXX XXXXX XXXX X XXX XXXXXXXX Response Action Status xxxxxx xxx xxxxx xxxxxxxxxxxx xxxxxx xxxxxxxxx xxxxxxxx : XXXXXXXXXXXXX XXXXXXXXXX XXXX XXXXXXXX XXXX XX XXXXXXXXX XX XXXXXX\ XXXXXXXXXXXX XXXXX XXX XXXXXXXXXXXXX XX XXXXXX XXXX XXXXX XXXX : XXXXXXXX XXXXXXX XXX XXXXXX XXXXXX XXXXX XXXXXX XXXXXXXX XXXXXXXX : XXXXXXXXXX XXXXXXXX XXXXXXXXXXXX XXXXXXXXX XXXX X XXX XX XXXXXXXXX XXXXX XXXX XXXX XXXXX XXXXXXX XXXXXXXX XXXXXXXX XXXXXXXXX XXXX XXXX XXXXX XXXX XXXXXXXX XXXXX XXXX XXXXX XXX XXX XXXXXX XXXXXXXXXXXX XX XXXXXXX XXX XXXXXX XX XXXXXX XXXXXXXX XXX : Site Facts: xxxxxx xxx xxxxx xxxxxxxxxxxx xxxxxx xxxxxxxxx xxxxxxxx XXXXXXXXX XXXXXXXXXXXXX XXXXXXXXXX XXXX XXXXXXXX XXXX XX XXXXXXXXX XX XXXXXX XXXXXXXXXXXX XXXXX XXX XXXXXXXXXXXXX XX XXXXXX XXXX XXXXX XXXX ^^xxxxxx xxx xxxxxx Environmental Progress xxxxxx xxx xxxxx xxxxxxxxxxxx xxxxxx xxxxxxxxx : XXXXXXXXXXXXX XXXXXXXXXX XXXX XXXXXXXX XXXX XX XXXXXXXXX XX XXXXXX XXXXXXXX XXX XXXXXXXXXXXX XXXXX XXX XXXXXXXXXXXXX XX XXXXXX XXXX XXXXX XXXX X XXX XXXXXXXXXX X XXXXXX XXXXXX XXX XXXXX XXXXXXXXXXXX XXXXXX XXXXXXXXX XXXXXXXX Site Repository xxxxxx xxx xxxxx xxxxxxxxxxxx xxxxxx xxxxxxxxx XXXXXXXXXXXXX XXXXXXXXX SITE REPOSITORY Lists the location of the primary site repository. The site repository may include community relations plans, public meeting announcements and minutes, fact sheets, press releases, and other site-related documents. ------- SITE DESCRIPTION This section describes the location and history of the site. It includes descrip- tions of the most recent activities and past actions at the site that have con- tributed to the contamination. Population estimates, land usages, and nearby resources give readers background on the local setting surrounding the site. THREATS AND CONTAMINANTS The major chemical categories of site contamination are noted, as well as which environmental resources are affected. Icons representing each of the affected resources (may include air, groundwater, surface water, soil, and contamination to environmentally sensitive areas) are included in the margins of this section. Potential threats to residents and the surrounding environ- ments arising from the site contamination also are described. CLEANUP APPROACH This section contains a brief overview of how the site is being cleaned up. RESPONSE ACTION STATUS Specific actions that have been accomplished or will be undertaken to clean up the site are described here. Cleanup activities at NPL sites are divided into separate phases, depending on the complexity and required actions at the site. Two major types of cleanup activities often are described: initial, immediate, or emergency actions to quickly remove or reduce imminent threats to the community and surrounding areas; and long-term remedial phases directed at final cleanup at the site. Each stage of the cleanup strategy is presented in this section of the summary. Icons representing the stage of the cleanup process (initial actions, site investigations, EPA selection of the cleanup remedy, engineering design phase, cleanup activities underway, and completed cleanup) are located in the margin next to each activity descrip- tion. SITE FACTS Additional information on activities and events at the site are included in this section. Often details on legal or administrative actions taken by the EPA to achieve site cleanup or other facts pertaining to community involvement with the site cleanup process are reported here. ------- Guide to the NPL Book Icons The "icons," or symbols, accompanying the text allow the reader to see at a glance which envi- ronmental resources are affected and the status of cleanup activities at the site. Icons in the Threats and Contaminants Section Icons in the Response Action Status Section Contaminated Groundwater re- sources in the vicinity or underlying the site. (Groundwater is often used as a drinking water source.) Contaminated Surface Water and Sediments on or near the site. (These include lakes, ponds, streams, and rivers.) Contaminated Air in the vicinity of the site. (Air pollution usually is periodic and involves contaminated dust particles or hazardous gas emissions.) Contaminated Soil and Sludges on or near the site. (This contamination category may include bulk or other surface hazardous wastes found on the site.) Threatened or contaminated Envi- ronmentally Sensitive Areas in the vicinity of the site. (Examples include wetlands and coastal areas or critical habitats.) Initial, Immediate, or Emergency Actions have been taken or are underway to eliminate immediate threats at the site. Site Studies at the site to determine the nature and extent of contamina- tion are planned or underway. Remedy Selected indicates that site investigations have been concluded, and the EPA has selected a final cleanup remedy for the site or part of the site. Remedy Design means that engi- neers are preparing specifications and drawings for the selected cleanup technologies. Cleanup Ongoing indicates that the selected cleanup remedies for the contaminated site, or part of the site, currently are underway. Cleanup Complete shows that all cleanup goals have been achieved for the contaminated site or part of the site. ------- EPA ID Number Site Name OKD980620983 COMPASS INDUSTRIES (AVERY DRIVE) OKD007188717 DOUBLE EAGLE REFINERY CO. OKD980696470 FOURTH STREET ABANDONED REFINERY OKD000400093 HARDAGE/CRINER OKD980620868 MOSLEY ROAD SANITARY LANDFILL OKD000829440 NATIONAL ZINC CORP. OKD091 598870 OKLAHOMA REFINING CO. OKD980748446 SAND SPRINGS PETROCHEMICAL COMPLEX OKD980629844 TAR CREEK (OTTAWA COUNTY) OKD980620967 TENTH STREET DUMP/JUNKYARD OKI 571724391 TINKER AIR FORCE (SOLDIER CREEK/BLDG 300) ------- COMPASS INDUSTRIES (AVERY DRIVE) OKLAHOMA EPA ID# OKD980620983 REGION 6 Tulsa County handler Park )ther Names: Chandler Landfill Site Description Compass Industries (Avery Drive) is a 40-acre permitted landfill located in an abandoned limestone quarry on a bluff above the Arkansas River in Tulsa. Operating from 1964 to the late 1970s, it served as one of the major municipal landfills in the Tulsa area. The limited records available indicate that unknown quantities of waste jet fuel, solvents, caustics, bleaches, benzene, and pesticides were dumped at the site. The waste was piled approximately 14 feet deep. During the 1970s, poor operating practices and open burning resulted in several fires at the landfill. In 1982, the most recent fire burned underground for more than a year, occasionally breaking out into the open. The State Health Department began to study air and water quality in 1983, when residents complained about odors at the site. The site is in a rural area, but is immediately west of Chandler Park, a recreational area. Citizens were also concerned about a nearby elementary school. 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. Site Responsibility: The site was addressed through Federal, Stale, and potentially responsible parties' actions. NPL Listing History Proposed Date: 09/08/83 Final Date: 09/21/84 Threats and Contaminants /5> .^> The soil was contaminated with toxic metals and organic compounds. Contaminants included oily sludges, jet fuel, solvents, acids, caustics, bleaches, benzene, polychlorinated biphenyls (PCBs), and pesticides. Soil no longer poses a threat due to the installation of a clay cap over the contaminated area. The low concentrations of contaminants in the groundwater are within Federal standards. In the past, the site was troubled by recurrent fires. Toxic air emissions from burning material threatened nearby residences. In addition, trespassers from the nearby recreational area were at risk of coming into contact with contaminated materials, as people have used the site for target practice; however, the site is fenced now making trespassing unlikely. An American Bald Eagle habitat near the site has been made safer as a result of site cleanup efforts. July 1995 ------- Cleanup Approach Response Action Status Immediate Actions: The EPA installed a fence around the site and put warning signs around its perimeter in mid-1988. Source Control: In 1987, the EPA selected the following remedies: installing an EPA-approved cap over the landfill area to isolate contaminated materials and reduce the amount of water seeping into and through the landfill; diverting surface water to reduce overland flows and infiltration; grading the site to encourage site runoff and prevent erosion; and collecting and treating contaminated shallow groundwater before discharge to the Arkansas River. The construction phase began in 1989. The clay cap was completed in 1990 and final seeding of the site took place in 1991. Further sampling of the groundwater showed that the low levels of contaminant concentrations do not pose a threat to people or the environment. Therefore, the remedy for groundwater cleanup was canceled. A final site inspection, conducted in 1991, verified that the cleanup has been effective. In addition, approximately 24 months of sampling have verified that the cleanup actions are sufficient to protect public health and the environment. The site is currently in a five-year operations and maintenance phase to ensure that the site cleanup remedy continues to protect public health and the environment. The EPA expects to complete a final site review in 1995. Site Facts: Texaco, Sun Refining & Marketing, and Standard Royalties Liquidating Trust together performed the cleanup, pursuant to Unilateral Administrative Orders. Cost recovery efforts are continuing for past EPA expenditures at the site. Environmental Progress All construction at the site is complete. The construction of a fence to limit access to the site has reduced the exposure potential of the Compass Industries (Avery Drive) site. Completion of the clay cap has contained material on site and surface water diversion techniques will help keep pollutants from migrating off site. Approximately two stream miles along the Arkansas River have been made safe from off-site migration of contaminants, allowing continued recreational use of the area. In addition, 40 acres of land have been returned to the community for recreational and commercial use. Site Repository Page Memorial Library, 6 East Broadway, Sand Springs, OK 74063 July 1995 2 COMPASS INDUSTRIES (AVERY DRIVE) ------- DOUBLE EAGLES REFINERY COMPANY OKLAHOMA EPA ID# OKD0071887W o A REGION 6 klahoma County Oklahoma City Site Description The Double Eagle Refinery Company, located southeast of the intersection of 4th Street NE and Martin Luther King Avenue, has been in operation since 1929. Until around 1978, this 7-acre facility re-refined used motor oils by acidulation, distillation, and filtration. Areas of concern include: a sludge lagoon, six smaller earthen impoundments, and numerous structures and pieces of abandoned refinery equipment. An inventory done by the site owner in 1990 showed 13 steel buildings, a fire tube boiler, two heat exchanges, five vacuum precoat/scrapper filters, two concrete settling cells, and approximately 100 steel tanks of varying dimensions. Although the equipment appears to be contaminated to various degrees, the tanks are empty. Since the inventory, the owner has removed some of the equipment from the site. About 36,000 cubic yards of waste oils contaminated with heavy metals are in surface impoundments on site. According to the company, the oils come from truck fleets, garages, automobile dealers, industries, and City, State, and Federal agencies throughout the State. In addition, waste solvents and other products were collected from major industrial companies in Oklahoma. Approximately 6,100 cubic yards of nearby land have been contaminated. The land use in the area is mixed industrial-residential. About 28,500 people in Del City and Smith Village obtain drinking water from public and private wells within 3 miles of the site. The site is located 1/2 mile from a school and 1/4 mile from a residential area. Surface waters within 3 miles of the site are used for recreational activities. The North Canadian river is located approximately 1/2 mile south of the site. The Fourth Street Superfund site is about 500 feet northeast of the Double Eagle Refinery Company site. Cleanup at both sites may be interrelated as necessary. Site Responsibility: This site is being addressed through Federal and potentially responsible parties' actions. NPL LISTING HISTORY Proposed Date: 06/24/88 Final Date: 03/31/89 July 1995 ------- Threats and Contaminants Sediments from the ponds and drainage areas, the surrounding soil areas, groundwater, and surface water are contaminated with barium, lead, zinc, acid base- neutral compounds, and volatile organic compounds (VOCs). Groundwater in the area is shallow (10 to 25 feet in some cases) and soils are permeable, conditions that help contaminants move into groundwater. There is a health risk from direct contact with the materials, but this has been lessened since the area was fenced. Wetlands are located adjacent to the site and wildlife in the area includes migratory fowl and small mammals. Cleanup Approach This site is being addressed in two stages: immediate actions and two long-term remedial phases focusing on controlling the source of contamination and cleaning up the groundwater. Response Action Status Immediate Actions: In 1989, the EPA ordered the site owner to fence and post warning signs over the northern side of the site, so that people and animals could not come into direct contact with hazardous substances. The fence and signs were erected in 1989. In early 1994, bird netting was installed over surface impoundments and oily ponds. Source Control: The EPA began conducting an investigation of the sources of contamination at the site in 1989. In 1992, after a public comment period, the EPA selected a cleanup approach that will stabilize contaminants prior to their removal off the site. The EPA will consolidate approximately 42,000 cubic yards of off-site and on-site wastes, neutralize consolidated acidic wastes on site, stabilize and solidify wastes containing lead on site, and dispose of other treated wastes in an appropriate landfill. The technical design for these efforts is underway and is scheduled to be completed in late 1995. Groundwater: Investigations to determine the nature and extent of groundwater contamination and to identify cleanup alternatives began in mid-1992 and were completed in the summer of 1993. In early 1994, the EPA decided to monitor the lightly-contaminated groundwater to ensure that the source control efforts are sufficient to prevent further groundwater contamination. Based on these findings, the EPA will determine if further cleanup actions are necessary. Design of the monitoring system is currently underway. Site Facts: An Administrative Order of Consent was issued to Double Eagle in December of 1989 requiring it to fence the site and post warning signs. In addition, the EPA has identified and is currently in negotiations with more than 40 potentially responsible parties to pay for site cleanup costs. July 1995 2 DOUBLE EAGLE REFINERY COMPANY ------- Environmental Progress Fencing the Double Eagle Refinery Company site, and installing the bird netting has reduced the potential of exposure to hazardous substances, making the area safer while cleanup efforts are planned. Site Repository Ralph Ellison Library, 2000 Northeast 23rd, Oklahoma City, OK 73111 DOUBLE EAGLE REFINERY COMPANY July 1995 ------- FOURTH STREETJ ABANDONED REFINERY OKLAHOMA EPA ID# OKD9806964W A REGION 6 klahoma County Oklahoma City Site Description The Fourth Street Abandoned Refinery is an abandoned 28-acre waste oil reclamation facility that operated from 1940 to 1968, and comprised numerous oil and sludge disposal pits. More recent dumping has occurred in the form of old concrete and building materials and government surplus supplies. An inactive oil well and a gas well are located on site. Elevated levels of semi-volatile and volatile organic compounds (VOCs) have been identified in soil, sediment, and sludge. Approximately 32,500 people live within 3 miles of the abandoned refinery. The nearest surface water body is the North Canadian River, which is approximately 1/2 mile south of the site. Wetlands are located adjacent to the site, Douglas High School is located about 1/2 mile north of the site and a residential area is located about 1/4 mile to the northwest. The Double Eagle Refinery Company site, also on the NPL, is about 500 feet southwest of the Fourth Street Abandoned Refinery site. Site Responsibility: The site is being addressed through Federal and State actions. NPL LISTING HISTORY Proposed Date: 06/24/88 Final Date: 03/31/89 Threats and Contaminants Soil and sediment samples contain barium, lead, chlordane, pesticides, acids, bases, and crude oil constituents. Groundwater and sludge from the site are contaminated with nickel, benzene, and numerous VOCs. Given the hydrogeology of the site, there is significant potential for groundwater contamination in the two aquifers. The land drains to the south and east, thus threatening the North Canadian River. Also, the site was not completely fenced, making it possible for people and animals to come into direct contact with hazardous substances. July 1995 ------- Cleanup Approach This site is being addressed in three stages: initial actions and two long-term remedial phases focusing on source control and cleanup of the groundwater. Response Action Status Initial Actions: In 1985, the State decontaminated junk autos, stored two drums of benzene, and capped and seeded the area. The EPA fenced the site and posted warning signs in 1989. Source Control: Between 1985 and 1987, the EPA performed surveys and field sampling at the site. The EPA has completed an investigation to determine the extent of contamination to surface water, sediment, soil, sludge, and tar areas, as well as to track the movement of contaminants through the air. In late 1992, the EPA selected the following cleanup measures to control the sources of contamination at the site: cleaning, consolidating, demolishing or salvaging, and removing contaminated equipment and on-site structures; consolidating an estimated 42,000 cubic yards of contaminated material on site; neutralizing the acidic wastes; solidifying wastes containing lead; and disposing of treated wastes in an EPA- approved landfill. The engineering design for these actions is complete and cleanup is underway. Cleanup actions are expected to be completed in late 1995. Groundwater: Investigations to determine the nature and extent of groundwater contamination and to identify cleanup alternatives began in mid-1992 and were completed in late 1993. Based on the results of this investigation, the EPA chose to continue monitoring groundwater contaminant levels to ensure that source control efforts are effective in preventing further contaminant migration into the lower aquifer. The design for the monitoring system is underway and is expected to be completed in late 1995. Environmental Progress Decontamination of junk autos, confinement of benzene, and capping of the area have reduced the potential of exposure to contamination at the Fourth Street Abandoned Refinery site, making it safer while long-term cleanup activities are planned and underway. Site Repository Ralph Ellison Library, 2000 Northeast 23rd, Oklahoma City, OK 73111 July 1995 FOURTH STREET ABANDONED REFINERY ------- HARDAGEZCETH OKLAHOMA EPA ID# OKD000400083 o EPA REGION 6 McClain County le west of Criner on Hwy. 1 22 Other Names: Hardage Landfill Criner Landfill Criner/Hardage Waste Disposal Site Description The 60-acre Hardage/Criner site was licensed by the State of Oklahoma from 1972 to 1980 to accept industrial and hazardous wastes such as asbestos, cyanides, and flammable sludges. Pits excavated to receive wastes filled rapidly; wastes were then transferred to two temporary ponds. In the west pond, liquid wastes were slurried with soil and transferred to the south pond. When the south pond filled, wastes were stacked 15 to 20 feet above the ground, becoming a sludge mound. In the mid-1970s, drums were no longer emptied but were piled at the northern end of the main pit, called the drum mound. These practices resulted in pesticides, solvents, acids, and metal sludges contaminating surface water, groundwater, and surface soil. The nearest residence in this rural area is at the southwestern site boundary. Adjacent to the North Criner Creek flood plain, the site is surrounded by cattle grazing land. Shallow groundwater from the site has moved into the North Criner Creek alluvium. Site Responsibility: This site is being addressed through Federal, State, and potentially responsible parties' actions. NPL LISTING HISTORY Proposed Date: 10/23/81 Final Date: 09/08/83 Threats and Contaminants Solvents, paint sludge, and inks have contributed to the contamination of soil, groundwater, and surface waters. Contamination found in each area includes: heavy metals, pesticides, polychlorinated biphenyls (PCBs), oils, and methylene chloride. Inhalation of dusts and vapors generated from the soils on site poses a potential risk for workers and trespassers. Fugitive dusts and vapors from on-site soil disruption could be inhaled off site. A mound on the site may contain over 20,000 drums. There is no known current use of the groundwater, but any use of contaminated groundwater would be hazardous. July 1995 ------- Cleanup Approach The site is being addressed in three stages: initial actions and two long-term remedial phases focusing on cleanup of the source area and the groundwater. Response Action Status Initial Actions: In 1982, the potentially responsible parties started decontaminating the site by mixing pit fluids with soil, excavating visibly contaminated soils from mixing areas and temporary ponds, capping the source areas with a soil cover, and consolidating wastes in source areas. Between September and November 1987, the potentially responsible party provided an alternate water supply to residents living southwest of the site. The parties potentially responsible for contamination fenced the site in early 1988. In 1988, heavy rains caused slope damage to the western face of the barrel mound. The potentially responsible parties performed the repair, and restored the other eroded mound areas. Source Area: In 1986, the EPA chose the following remedies, to be carried out by the potentially responsible parties: excavation of approximately 180,000 cubic yards from the principal source areas (the drum mound, main pit, and sludge mound) to the bedrock; separation of wastes; treatment and disposal of solids in an on-site approved landfill; incineration of organic liquids; and treatment and disposal of inorganic liquids. A public comment period was held in 1989 to explore options other than those listed. In 1989, the EPA revised the 1986 remedy selection. The revised cleanup remedy calls for soil vapor extraction of the source areas, consolidation of contaminated soils, and removal of contaminated liquids followed by off-site incineration and capping of the source areas. To date, interceptor wells have been installed in the southwest area of the site and liquid extraction wells have been installed in the drum mound and Drum Pit areas. Extracted contaminants will be taken off-site for incineration. Once all cleanup activities are completed, expected in 1995, the source area will be capped. Groundwater: The EPA's selected remedy, which was reviewed by the public in 1989, is to build a V-shaped trench to intercept contaminated groundwater over most of the site. Another interceptor trench will catch groundwater that is moving into the alluvium located under North Criner Creek. The captured groundwater will be pumped to an on- site treatment unit, and then the treated water will be discharged into North Criner Creek. The groundwater and surface water will be monitored, surface drainage controlled, and the use of contaminated groundwater prevented through institutional controls. Construction of the groundwater cleanup remedies is expected to be completed in 1995. Site Facts: In 1978, the State of Oklahoma filed complaints against the facility for suspected lead poisoning of the air around the site. A ruling in 1982 found that the potentially responsible parties were liable for all costs of removal or remedial actions. A complaint was filed against 36 generators and transporters in 1986. A partial Consent Decree was signed by the potentially responsible parties in 1987 for the groundwater cleanup. In August 1990, the Federal District Court selected the cleanup remedy proposed by the potentially responsible parties. July 1995 2 HARDAGE/CRINER ------- Environmental Progress The initial actions taken by the potentially responsible parties to decontaminate the soil, excavate contaminated soils, and cap the source areas as described above have reduced the potential exposure of nearby residents to the waste at the Hardage/Criner site, making it safer while cleanup activities are completed. Site Repository Purcell City Library, 919 North 9th Street, Purcell, OK 73080 HARDAGE/CRINER July 1995 ------- MOSLEY ROAD SANITARIAN OKLAHOMA EPA ID# OKD9806$0868 EPA REGION 6 Oklahoma County miles east of Oklahoma City Site Description The Mosley Road Sanitary Landfill covers 72 acres and was used from 1975 to 1987 as a commercial, residential, and industrial landfill. In 1976, the landfill accepted approximately 2 million gallons of hazardous substances under a Temporary Emergency Waiver for Hazardous Waste Disposal issued by the Oklahoma State Department of Health. According to the permit application, pesticides, industrial solvents, sludges, waste chemicals, and emulsions were deposited into three unlined pits. Since then, the pits have been buried under as much as 80 feet of solid refuse and fill and a clay cap. In October 1984, Waste Management of Oklahoma, Inc. acquired the site, operating it until November 1987, when the landfill reached its authorized capacity. Concerns about groundwater contamination brought the site to the EPA's attention. Hazardous wastes were disposed of near the base of the landfill; a long-term risk could exist if wastes leak into the groundwater. The landfill lies above the Garber-Wellington Formation, an aquifer that serves as a high-quality drinking water source for many Oklahoma City residents. The surrounding area is both residential and commercial. An estimated 57,000 people obtain drinking water from public and private wells within a 3-mile radius of the site. Six homes are located within 1/2 mile from the site and obtain drinking water from private wells. Site Responsibility: This site is being addressed through Federal and potentially responsible parties' actions. NPL LISTING HISTORY Proposed Date: 06/24/88 Final Date: 02/21/90 Threats and Contaminants The soil and groundwater is contaminated with pesticides, industrial solvents, sludges, waste chemicals, emulsions, and other substances disposed of in the landfills. Potential contamination of the groundwater connected to the public drinking water system may pose a threat to public health. July 1995 ------- Cleanup Approach The site is being addressed in two stages: initial actions and a long-term remedial phase focusing on cleanup of the entire site. Response Action Status Initial Actions: In 1988, a clay cap was placed over the landfill. The site is also fenced to prevent unauthorized access. Entire Site: Under an agreement with the EPA, Waste Management of Oklahoma, Inc. and Mobile Waste Controls, Inc. conducted a study of the nature and extent of site contamination and evaluated potential remedies for site problems. The investigation was completed in 1991. In mid-1992, the EPA selected a cleanup remedy that includes: restoring groundwater as a potential source of drinking water through natural attenuation; continuing to monitor groundwater if samples indicate natural dissipation is ineffective; repairing and improving the existing cap and adding a vegetative soil layer; installing warning signs; restricting future use of the site; fencing the site; and implementing a landfill gas monitoring system to prevent explosions. The technical designs for these actions are underway and are expected to be completed in 1995. Site Facts: Waste Management of Oklahoma, Inc. and Mobile Waste Controls, Inc. signed an Administrative Order with the EPA in 1989 to conduct an investigation into the nature and extent of site contaminants. In early 1994, the EPA issued a Unilateral Administrative Order to Waste Management of Oklahoma to clean up the site. In addition, the EPA is negotiating with over 40 potentially responsible parties to contribute to the cleanup efforts. Environmental Progress The site is now inaccessible due to the fence installed by Waste Management of Oklahoma, Inc. The installation of a clay cap over the landfill has reduced the potential for exposure to contaminants while final cleanup measures are being designed. Site Repository Ralph Ellison Library, 2000 Northeast 23rd, Oklahoma City, OK 73111 July 1995 2 MOSLEY ROAD SANITARY LANDFILL ------- NATIONAL ZINC CORP. OKLAHOMA EPA ID# OKD000829440 Site Description PA REGION 6 Washington County Bartlesville Other Names: National Zinc Co. Horsehead, Inc. St. Joe Mineral The National Zinc Corp. site is approximately 150 acres in size and located on the west side of Bartlesville. The company has conducted zinc smelting operations at the site since 1907. In 1976, National Zinc Corp. was acquired by the Zinc Corporation of America. Air emissions were essentially uncontrolled until 1976 when old retort furnaces were replaced with an electrolytic smelting process. Widespread contamination off site, including a large portion of west Bartlesville and much of the downtown area, has been traced back to the uncontrolled air emissions of the smelting operations as well as the use of smelter waste for fill projects throughout the area. Approximately 8 square miles of surface soil surrounding the smelter facility is contaminated. Contamination also was caused by the use of slag and other smelter waste as fill materials for a number of years. The site is a mixed residential, commercial, and industrial area, including schools, day care facilities, and playgrounds, which could potentially be affected by site contamination. Approximately 5,000 people live within 3 miles of the site. An estimated 1,700 students attend two schools and three day care centers located nearby which are known to have contaminated soils. Approximately 170 people work at these facilities. Site Responsibility: The site is being addressed through Federal and potentially responsible parties' actions. NPL LISTING HISTORY Proposed Date: 05/10/93 Threats and Contaminants Approximately 8 square miles of surface soil is contaminated with the heavy metals lead and cadmium. According to 1992 EPA reports, lead and cadmium levels in the top two feet of soil are greater than three times natural background levels. Concentrations are highest at the smelter and decrease away from the smelter. Although the extent of the area of contamination has not been fully determined, it includes soils at two schools and three day care centers. Blood lead studies performed by the Oklahoma State Department of Health in 1991 and 1992 indicate that approximately 10 percent of the children in the contaminated area have elevated blood lead levels. The study revealed that children on the west side of Bartlesville, the side where the facility is located, had elevated levels of blood lead whereas the children on the east side did not. People who incidentally touch or ingest contaminated soils could be at risk. July 1995 ------- Cleanup Approach This site is being addressed in two stages: initial actions and a long-term remedial phase focusing on the cleanup of the entire site. Response Action Status Initial Actions: In late 1992, contamination was removed from 29 easily accessible areas, including schools, day care facilities, and playgrounds. These activities included excavating contaminated soil, transporting the soil to an on-site staging area, and backfilling with clean soil. Soil was stabilized at the staging area and then sent to a non- hazardous commercial landfill. In 1993, the EPA excavated lead- and cadmium-contaminated soils from 22 residences of individuals with high blood-lead levels, and back-filled the areas with clean soil. Contaminated soils present at the approximately 260 residences of individuals with elevated levels of lead in their blood were removed in 1994 by the potentially responsible parties. Entire Site: After completing a study of the nature and extent of contamination at the site, the EPA selected final cleanup remedies in late 1994 that included replacing soil excavated from residential properties and treating contaminated soil at commercial properties through a combination of capping, backfilling with clean soil, tilling, and treating contamination with phosphate. The technical designs for these actions are currently underway and are expected to be completed in 1995. Site Facts: Contamination within the fenced boundaries of the facility is being addressed under EPA's Resource Conservation and Recovery Act (RCRA) program. The Superfund program is addressing contamination outside the fenced boundaries. This site was selected as a Superfund Accelerated Cleanup Model (SACM) pilot project. Under SACM, site assessment activities are undertaken to support both early and long-term cleanup actions. Site conditions and their associated risks are assessed continuously until all necessary data are collected to screen the site or support any needed response actions. Response actions are initiated once evidence indicates that early action is warranted. Under SACM, the public is notified early on of the potentially hazardous conditions of the site. The EPA also gives early notification to polluters of their potential liability for conducting or paying for cleanup activities. At this site, two potentially responsible parties agreed to remove the contaminated soil from residential properties as describe above. Environmental Progress By having removed contaminated soil from public and residential areas, EPA has reduced the immediate threat posed by contaminants at the National Zinc Company site. Further cleanup of contaminated properties is expected to begin shortly. July 1995 2 NATIONAL ZINC CORP. ------- Site Repository Bartlesville Public Library 600 S. Johnstone Bartlesville, OK 74005 NATIONAL ZINC CORP. July 1995 ------- REFINING COMPANY OKLAHOMA EPA ID# OKD091 EPA REGION 6 Caddo County ith Baskett Street in Cyril 5987O Site Description The 160-acre Oklahoma Refining Company site is an abandoned oil refinery that was active from 1920 to 1984, when Oklahoma Refining Company declared Chapter 11 bankruptcy. The operator at the site placed process wastes, some reactive or flammable, into approximately 50 impoundments, many of which were unlined. Other wastes were tilled into the soil or placed in a waste pile. Some process wastes were applied to the soil and treated in a land farming operation. In 1981, the EPA observed leachate coming from the site, threatening nearby Gladys and Chetonia Creeks, which are used for recreational activities. In 1984, the owner declared bankruptcy and abandoned the facility. In 1986, the EPA found an on-site monitoring well to be contaminated with heavy metals. New owners began operation of the refinery area in the fall of 1993. The Rush Springs Sandstone aquifer, which lies beneath the site, is considered to be a potential source of drinking water; however, no one is currently drinking water from the contaminated portion of the aquifer. Approximately 1,600 people obtain drinking water from public and private wells within 3 miles of the site. One private well is located within 1,000 feet of the site. Site Responsibility: This site is being addressed through Federal and State actions. NPL LISTING HISTORY Proposed Date: 06/24/88 Final Date: 02/21/90 Threats and Contaminants The ground water is contaminated with heavy metals, including arsenic and lead. Process wastes from oil refining were tilled into the soil through a landfarming operation, but the soil contaminants are unspecified. While surface water is not contaminated, it will be addressed by cleanup activities since often it mixes in with drinking water supplies. Many of the wastes remaining on site are flammable or reactive and pose the threat of fire or explosion. The site is unfenced, making it accessible to people and animals. Gladys Creek, which is adjacent to the site, has been shown to be affected by contamination from the site. Gladys and Chetonia Creeks are used for recreation. July 1995 ------- Cleanup Approach This site is being addressed in two stages: initial actions and a long-term remedial phase focusing on cleanup of the entire site. Response Action Status Initial Actions: In 1989, the EPA surveyed the site to determine the nature of emergency actions required. As a result of the survey, a fence was erected to limit access to the site in 1990. Netting was placed over the impoundments to protect wildlife, further reducing the risk of direct contact with the hazardous waste. The EPA properly plugged 23 abandoned wells in 1990 also. Additionally, the 18 drums on the site were disposed of in late 1991. Entire Site: In 1989, the Oklahoma State Department of Health (OSDH) began an investigation to assess the extent of contamination in soil, groundwater, and surface waters and to identify appropriate cleanup strategies. The cleanup remedy was selected in mid-1992 and includes: biological treatment of surface waters, recycling of 10,000 cubic yards of asphalt, neutralization of 51,000 cubic yards of acidic and caustic waste deposits, stabilization of 8,900 cubic yards of metals-contaminated material, and interception and treatment of groundwater. OSDH has received funds to begin the detailed design of the remedy and is in the process of selecting a contractor. Site Facts: The EPA issued an Administrative Order in 1980, requiring the potentially responsible parties to reduce site discharge to Gladys Creek. Environmental Progress Initial cleanup actions to control contamination and to fence the Oklahoma Refining Company site have reduced the potential for direct exposure to hazardous substances, making the area safer while cleanup activities are being designed. Site Repository Cyril City Hall, 202 West Main Street, Cyril, OK 73029 July 1995 OKLAHOMA REFINING COMPANY ------- SAND SP PETROCHEMICAL COMPLEX OKLAHOMA EPA ID# OKD980748446 Site Description REGION 6 Isa County d Springs, ithe Arkansas River The 200-acre Sand Springs Petrochemical Complex site, located approximately 3 miles west of the Tulsa city limits, operated as a refinery from the turn of the century through the late 1940s. It was later developed as an industrial area consisting of chemical manufacturers, solvent and waste oil recovery operations, transformer salvaging and recycling, and various other industries. The site contains acid sludge pits, a surface impoundment, spray ponds, and solvent and waste oil lagoons. The refinery left two, unlined pits about 10 feet deep, containing sulfuric acid sludge and heavy metals. Over the years, sludge seeped into the Arkansas River levee, releasing contaminants into the river. Other industries stored or disposed of hazardous substances in drums, tanks, and unlined pits, or simply buried them on the site. These substances included volatile organic compounds (VOCs), acids, caustics, chlorinated solvents, and sludges containing heavy metals. The nearest residence is located on site. Drinking water wells are in use within 1/2 mile, although they are upgradient of the contaminated site. Site Responsibility: This site is being addressed by Federal, State, and potentially responsible parties' actions. NPL LISTING HISTORY Proposed Date: 09/08/83 Final Date: 06/10/86 Threats and Contaminants The primary contaminants of concern affecting the soil, shallow groundwater, sediments and sludge are VOCs and heavy metals such as lead and chromium. The Arkansas River has been shown to be contaminated by past seepage of sulfuric acid sludges and heavy metals through the levee. Individuals are at risk from direct contact with or accidental ingestion of contaminated soil, groundwater, or sludges. August 1995 ------- Cleanup Approach The site is being addressed in three stages: immediate actions and two long-term remedial phases focusing on control of the sources of contamination and cleanup of the groundwater. Response Action Status Immediate Actions: Under orders from the EPA, parties potentially responsible for the contamination removed drums and tanks from the site. The EPA also removed 400 drums of hazardous material, repaired the fence around the site, and sampled and analyzed the pits, on-site soil, and the on-site monitoring wells. Source Control: In September 1987, the EPA determined that incineration of the contaminated soil and sludges was the most efficient remedy for this site. However, the remedy of solidification or stabilization of wastes proposed during the public comment period was identified as acceptable if the potentially responsible parties could demonstrate that these techniques provided comparable protection of public health and environment. ARCO started the engineering design for the remedy in 1988, including a bench- scale pilot test to determine the most appropriate solidification technique. In 1991, ARCO performed further testing of the solidification/stabilization techniques. Based on these results, solidification/stabilization was selected as the final remedy in early 1993. Design of the remedy was completed in 1994, and cleanup is underway. Construction of an on-site landfill to contain remaining sludges is also underway, as is the design of a wastewater treatment plant. By January 1995, all waste at the site had been excavated and neutralized. All cleanup activities are scheduled to be completed in 1996. Groundwater: The EPA believes that once the sources of contamination are removed, groundwater pollution will dissipate naturally over time, via the natural flushing action of the aquifer. In 1988, following a study by the State, the EPA selected a "no action" cleanup remedy for the groundwater phase. The groundwater and Arkansas River water will be monitored for 30 years to ensure the effectiveness of the source control remedy in protecting the groundwater. In addition to monitoring, signs have been posted, warning residents of the dangers of coming in direct contact with site contamination. Groundwater monitoring began in 1990. To date, contamination levels have not been significantly reduced. Site Facts: In 1984, the EPA issued two Administrative Orders for drum and tank removal. In 1987, an Administrative Order was issued to the parties potentially responsible for site contamination, who conducted on-site incineration and solidification treatability studies. A Consent Decree was signed in 1990 by ARCO, the State, and the EPA for design and cleanup of site contaminants. August 1 995 2 SAND SPRINGS PETROCHEMICAL COMPLEX ------- Environmental Progress The immediate actions taken to remove contaminated drums and tanks and to repair the fence surrounding the site have reduced the potential for exposure at the Sand Springs Petrochemical Complex site while cleanup activities are taking place. When completed, the cleanup at the Sand Springs Petrochemical Complex will have eliminated risks from 130,000 cubic yards of contaminated soils and sludge, and made several miles of the Arkansas River safer for recreational uses. Site Repository Page Memorial Library, 6 East Broadway, Sand Springs, OK 74063 SAND SPRINGS PETROCHEMICAL COMPLEX August 1995 ------- TAR CREEK OKLAHOMA EPA ID# OKD980629844 Site Description EPA REGION 6 Ottawa County gh the towns of Miami, Richer, ;din, Quapaw, and Commerce The Tar Creek (Ottawa County) site covers a 40-square mile portion of the Tri-State Mining District (Picher Mine Field), which covers 100 square miles. The area produced significant quantities of lead and zinc from 1900 to 1950. When major mining operations ceased in the early 1970s, groundwater accumulated in the mines. The acid water reacted with the surrounding rock, causing many of the metals present to dissolve and resulting in high concentrations of zinc, lead, and cadmium in the water. In 1979, acid mine water with high concentrations of heavy metals began to discharge to the surface from boreholes and the abandoned mine shafts, contaminating the surface water in Tar Creek. This problem, along with the potential for contaminating the drinking water source under the mining area, prompted the U.S. Geological Survey and the State to investigate the site. In 1981, the State declared the site its number one pollution problem. The towns of Miami, Picher, Cardin, Quapaw, and Commerce are located within the site area boundary. The nearby population of approximately 30,000 receives its drinking water from the Robidoux Aquifer. Site Responsibility: This site is being addressed through Federal and State actions. NPL LISTING HISTORY Proposed Date: 10/23/81 Final Date: 09/08/83 Threats and Contaminants The groundwater, sediments, and surface water were contaminated with heavy metals including lead, zinc, and cadmium. The upper aquifer was contaminated with heavy metals. Several people use the upper aquifer as a source of drinking water. The lower aquifer was threatened due to several boreholes and leaking abandoned wells connecting the aquifers. The lower aquifer serves several towns and rural communities including the towns of Miami and Picher. Because the Picher town water well passes through a highly mineralized rock formation, the high levels of heavy metal contaminants indicated major casing failure in the well. Runoff of surface waters had degraded Tar Creek. Wetlands are found on the site and also were subject to contamination. July 1995 ------- Cleanup Approach The site is being addressed in two stages: an initial action and a long-term remedial phase focusing on contamination at the entire site. Response Action Status Initial Action: In 1985, an emergency water supply was put in place by the National Guard. The EPA plugged the contaminated well using sand and corrosion- resistant concrete. Backup wells were used to flush the city lines. Subsequently, water quality in these two wells returned to normal and the National Guard discontinued water delivery. The EPA drilled the new well, connected it to the water system, and re-tested the water. Entire Site: The selected remedies included diverting and diking the two major inflow areas in Kansas and a third in Oklahoma, plugging aquifer wells, and developing a monitoring plan. A total of 83 wells were plugged. These cleanup activities were completed in 1986. The EPA completed a Five Year Review of the site in early 1994. This review resulted in the evaluation of possible sources of lead described below. Lead Contamination: Over the summer of 1994, the EPA began new investigations into possible subsurface soil and other contamination in surrounding areas. Iron levels in drinking water from five community wells in the mining area are elevated above established standards. The Oklahoma Department of Environmental Quality is investigating to determine if the Roubidoux Aquifer is the source of contamination. A summary of the results of the Indian Health Service testing made available to EPA in 1994 indicated that approximately 35% of the Indian children tested in the area had elevated levels of lead in their blood. EPA's Emergency Response Branch investigated day care centers, schools, and parks in the fall of 1994 for mining waste contamination. Approximately 50% of the samples contained elevated levels of lead. The Oklahoma Department of Health is planning to screen the children in the mining area for blood lead poisoning in 1995. Site Facts: In 1982, the EPA awarded a Cooperative Agreement to the State for a site investigation and a study of alternative cleanup strategies. The EPA continues negotiations with numerous potentially responsible parties to recover cleanup costs. Environmental Progress Actions by the State of Oklahoma and the EPA have reduced the potential for contaminants in the shallow groundwater to migrate to deeper drinking water aquifers and have achieved the groundwater cleanup standards established for the site. The State also has completed cleanup activities at the Tar Creek (Ottawa County) site for surface water improvement. The EPA recently began a new investigation into the nature and extent of lead contamination in surface soils, which is a source of exposure to children living in the area. July 1995 2 TAR CREEK (OTTAWA COUNTY) ------- Site Repository Miami Public Library, 200 North Main Street, Miami, OK 74354 TAR CREEK (OTTAWA COUNTY) July 1995 ------- TENTH STREET JUNKYARD OKLAHOMA EPA ID# OKD9806209 REGION 6 Oklahoma County Oklahoma City Other Names: Frazier Pit Site Description The 3 1/2-acre Tenth Street Dump/Junkyard site is located in an industrialized area in Oklahoma City. The site was used as a municipal landfill from 1950 to 1954. It housed a private salvage yard from 1959 to 1979, accepting such things as paint thinners, used tires, old transformers, and junk automobiles. During the salvage of electrical equipment, large amounts of polychlorinated biphenyl (PCB) oil was spilled on the ground. A fire at the site destroyed 1,000 old tires, which may have contributed to a black tar-like substance on the ruined soil. Workers indiscriminately bulldozed drums of benzene and methylene chloride onto sections of the site along with other debris. About 30,000 people draw drinking water from public and private wells within 3 miles of the site; the nearest is within 1/4 mile. About 1,000 people live within 1 mile of the site. Residential property is adjacent to the site. Site Responsibility: The site is being addressed through Federal actions. NPL LISTING HISTORY Proposed Date: 01/22/87 Final Date: 07/22/87 Threats and Contaminants The soils have high levels of PCBs. Residents, trespassers, and children are potentially threatened by direct exposure to contaminated soils and waste left on the site. The North Canadian River is threatened by contaminated runoff from the site and erosion of site soils. Contaminants from the soil also may threaten nearby ground water. Cleanup Approach This site is being addressed in two stages: initial actions and a long-term remedial phase focusing cleanup of the entire site. July 1995 ------- Response Action Status Initial Actions: The first phase of the initial action started in 1985 and included removal of drums of solvents and junk automobiles, and decontamination of the office building, and tire repair machine shop. After decontamination, workers backfilled the wash pit. Because contamination was widespread, the entire site was capped to prevent rainfall and erosion from spreading pollutants. In a second cleanup phase, an 18-inch clay layer was placed on the site. The entire area was fenced and posted. The cap was seeded in 1986. Entire Site: In 1990, the EPA selected a remedy for cleanup of the site, which includes excavation, on-site chemical dechlorination, and on-site disposal of contaminated soils. Engineering designs for the cleanup activities began in 1991. Information discovered during the design, however, indicated these remedies would not be feasible. In 1993, the EPA amended the remedy to call for capping the 9,800 cubic yards of contaminated soil in place. Construction of the cap began in late 1994 and is expected to be completed in 1996. Site Facts: In 1985, the EPA issued an Administrative Order to the potentially responsible parties to decontaminate and remove junked cars, remove and properly dispose of electrical equipment and drums containing hazardous substances, install a fence, and build a synthetic liner and clay cap to prevent runoff from spreading contaminants. Environmental Progress The EPA has completed many cleanup activities at the Tenth Street Dump/Junkyard site, including decontamination of hazardous items and fencing the site, making the site safer as the site cap is being built. Site Repository Ralph Ellison Library, 2000 Northeast 23, Oklahoma City, OK 73111 July 1995 2 TENTH STREET DUMP/JUNKYARD ------- TINKER FORCE (SOLDIER CREEK/ BUILDING 3001) OKLAHOMA EPA ID#OK1571724391 Site Description !PA REGION 6 Oklahoma County Jgnoma City metropolitan area Other Names: USAF Tinker Air Force Base The Tinker Air Force Base (Soldier Creek/Building 3001) site is located in the northeastern portion of the 4,277-acre base, east of the North-South runway. It encompasses six landfills, two waste pits, three radioactive disposal sites, Building 3001, the two adjacent underground storage tank areas, adjacent Soldier Creek, and the contaminated groundwater under the base. Tinker Air Force Base (AFB) was activated in 1942. Its primary mission was to serve as a worldwide repair depot for aircraft and associated equipment and weaponry. The Building 3001 complex uses large quantities of industrial solvents in its business of maintaining aircraft and rebuilding jet engines. In the past, waste oils, solvents, paint sludges, and plating waste generated from maintenance activities were disposed of in two industrial waste pits, 1 mile south of Soldier Creek and Building 3001. Since 1979, industrial wastes have been disposed of off site. The base is located in the recharge zone of the Garber-Wellington Aquifer. Four landfills and the groundwater are contaminated with chromium and trichloroethylene (TCE). As of 1988, four drinking water wells at the base were polluted. The closest municipal well, 1/2 mile to the northwest, serves approximately 55,400 people. The nearest residences and drinking wells are 300 feet from the site. The base has 19,500 workers and 2,700 residents. Site Responsibility: This site is being addressed through Federal and State actions. NPL LISTING HISTORY Proposed Date: 04/01/85 Final Date: 07/01/87 Threats and Contaminants m Four drinking water wells are contaminated with high concentrations of TCE and cadmium. The Garber-Wellington aquifer is contaminated with solvents and metals from past industrial activities at the site. More than 55,000 people use this aquifer as a source of drinking water. Groundwater contamination has been detected both on and off site. Soil and sediments are contaminated with TCE and chromium. Surface water is contaminated with nickel and cadmium. Dr.inking contaminated groundwater poses a threat to residents and workers. Municipal wells for Midwest City are at least 500 feet deep, and therefore are not at great risk of becoming contaminated. August 1 995 ------- Cleanup Approach This site is being addressed in three stages: emergency actions and two long-term remedial phases focusing on cleanup of contaminants at the Building 3001 Complex and Soldier Creek. Response Action Status Emergency Actions: In 1985, the Air Force removed tanks in Building 3001, contaminated soil from on-base streams, and contaminants from the groundwater under one of the site's facility. In addition, a cap was installed at one of the landfills, with additional capping on its Southeastern corner. Two wells were plugged in 1986. In mid- 1988, floating free product was removed from the groundwater under the POL Facility. In 1990, contaminated liquids were removed from the waste pit. The pit has since been cleaned, backfilled, and capped. Tinker has provided bottled water to those residents with contaminated drinking water wells. Midwest City is currently supplying affected residents with city water hookups. Building 3001 Complex: In 1987, the Air Force contracted with the U.S. Army Corps of Engineers to do an 18-month study that is the equivalent of the Superfund investigation into site contaminants and remedies. In 1990, a remedy was selected for the site including the extraction of contaminated groundwater and treatment by air or steam stripping, metals precipitation, and fine filtration; and the extraction and destruction of floating petroleum from the North Tank Area using soil vapor extraction and thermal destruction technologies. In addition, the liquids will be removed from Pit No. Q-51 and disposed of off site and the pit will be cleaned. The removal of fuel products above the water table began in mid- 1991. Construction of the groundwater treatment plant was completed in 1993 and the plant is operating as designed. The plant will continue to teat contaminated groundwater until established cleanup levels are met. Soldier Creek: Investigations into the nature and extent of the contaminants at Soldier Creek were completed in 1993. Based on the results of these investigations, the EPA determined that Soldier Creek poses no threat to human health, and therefore requires no cleanup at this time. An ecological risk assessment began in 1994 to determine if Soldier Creek poses a serious threat to the surrounding environment. Site Facts: Tinker AFB is participating in the Installation Restoration Program, a specially funded program established by the Department of Defense (DOD) hi 1978 to identify, investigate, and control the migration of hazardous contaminants at military and other DOD facilities. A federal facility agreement was signed between the Air Force and EPA in late 1989. August 1995 2 TINKER AIR FORCE BASE (SOLDIER CREEK/ BUILDING 3001) ------- Environmental Progress Removing contaminated materials, capping of a landfill, and operating the groundwater treatment system have greatly reduced the chances of hazardous exposure at the Tinker AFB (Soldier Creek/Building 3001) site. Site Repository Midwest City Public Library, 8143 West Reno Avenue, Midwest City, OK 73110 TINKER AIR FORCE BASE (SOLDIER CREEK/BUILDING 3001) August 1995 ------- |