, HEALTH LIBRARY
                          :  OF CINCINNATI
                       United States
                    — Environmental Protection
                       Agency
Office of
Solid Waste and
Emergency Response
Publication 9320.7-071
May 1994
      4>EPA Descriptions  of  42  Final
                      Sites  Added  to the  National
                      Priorities  List in   May  1994
       Office of Emergency and Remedial Response
       Hazardous Site Evaluation Division (5204G)
                         Intermittent Bulletin
                         Volume 4, Number 3
          This document consists of descriptions of the 42 final sites added to the National Priorities List (NPL) in May 1994.
     The size of the site is generally indicated, based on information available at the time the site was scored using the Hazard
     Ranking System or nominated by ATSDR Health Advisory Criteria.  The size may change as additional information is
     gathered on the sources and extent of contamination. Sites are arranged alphabetically by site name.
     CLEANING UP UNDER SUPERFUND

          The Superfund program is managed by the U.S.
     Environmental  Protection  Agency  (EPA).   It  is
     authorized by  the  Comprehensive  Environmental
     Response, Compensation, and Liability Act (CERCLA),
     enacted on December II,  1980, as amended  by the
     Superfund Amendments  and   Reauthonzation  Act
     (SARA),  enacted on October 17, 1986.  In October
     1990, SARA was extended to September 30, 1994. The
     Hazardous Substance Response Trust Fund  set up by
     CERCLA as  amended pays the costs not assumed by
     responsible parties for cleaning up hazardous waste sites
     or emergencies that threaten public health, welfare, or
     the environment; Superfund also pays for overseeing
     responsible parties conducting cleanup.

          Two types of responses  may  be taken when a
     hazardous substance  is released (or threatens to be
     released) into the environment:

        •  Removal actions — emergency-type responses
          to imminent threats. SARA limits these actions
          to  1  year and/or $2 million, with a  waiver
          possible if the actions are consistent with remedial
          responses. Removal actions can be undertaken by
          the private parties responsible for the releases or
          by the Federal government using the Superfund.

          Remedial responses -  actions  intended to
          provide permanent solutions at  uncontrolled
          hazardous waste sites. Remedial  responses are
          generally longer-term and more expensive than
          removals.    A Superfund-financed  remedial
          response can be taken only if a site is on the
          NPL.  EPA published the first NPL in September
          1983.  The list must be updated at least annually.

          EPA's goals for the Superfund program are  to:

          Ensure that polluters pay to clean up the problems
          they created; and

          Work  first on the worst problems at the worbt
          sites, by making sites safe,  making sites clean,
          and bringing new technology  to  bear on the
          problem.
EPA/540/F-94/040

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REMEDIAL RESPONSES
      The money foFconducting a remedial response at
a hazardous waste site (and a removal action, as well)
can come from several sources:

   •  The individuals or companies responsible for the
      problems can clean up voluntarily with EPA or
      State supervision, or they can be forced to clean
      up by Federal or State legal action.

   •  A State  or  local  government can choose  to
      assume  the responsibility  to clean  up without
      Federal dollars.

   •  Superfund can pay for the cleanup, then seek to
      recover  the costs from the  responsible party  or
      parties.

      A remedial response, as defined by the National
Contingency Plan (the Federal regulation  by which
Superfund is implemented), is an  orderly process that
generally involves the following steps:

   •  Take any measures needed to stabilize conditions,
      which might  involve,  for example,  fencing the
      site  or removing above-ground drums or bulk
      tanks.

   •  Undertake initial planning activities to scope out
      a strategy for collecting information and analyzing
      alternative cleanup approaches.

   •  Conduct a remedial  investigation to characterize
      the type and extent  of contamination at the site
      and  to  assess  the  risks   posed  by  that
      contamination.

    •  Conduct a  feasibility  study to analyze various
      cleanup alternatives. The feasibility study is often
      conducted  concurrently   with  the  remedial
       investigation as one project. Typically, the two
      together take  from  18 to 24 months to complete
      and cost approximately $1.3 million.

    •   Select the cleanup alternative that:

            Protects human health and the environment:

       —    Complies   with   Federal   and   State
            requirements that are applicable or relevant
            and appropriate;
      -   Uses permanent  solutions and  alternative
           treatment technologies or resource recovery
           technology   to   the   maximum   extent
           practicable;

      —   Considers views of the State and public; and

      -   Is "cost effective" — that is, affords results
           proportional to the costs of the remedy.

   •  Design the remedy.  Typically, the design phase
      takes 6  to  12  months  to  complete  and  costs
      approximately $1.5 million.

   •  Implement the remedy, which might involve, fo.r
      example,  constructing facilities to  treat ground
      water or removing contaminants to a safe disposal
      area aw^y from the site.

      EPA expects the implementation (remedial action)
phase to average out at about $25 million (plus any costs
to operate and maintain the  action) per site, and some
remedial actions may take several years to complete.

      The  State  government  can  participate  in  a
remedial response under Superfund in one of two ways:

   •  The  State  can  take  the lead  role  under  a
      cooperative  agreement,  which is  much  like  a
      grant in that Federal dollars are transferred to the
      State.   The State  then  develops a  workplan,
      schedule, and budget, contracts for any services
      it needs, and is responsible for making sure that
      all the conditions in the cooperative agreement are
      met.  In contrast to  a grant, EPA continues to be
      substantially involved and monitors  the State's
      progress throughout the project.

   •  EPA can take the lead under a Superfund State
      Contract, with the  State's role outlined.   EPA,
      generally using contractor support, manages work
      early in the planning process.  In the later design
      and implementation phases,  contractors do the
      work under the supervision  of the U.S. Army
      Corps of Engineers.  Under both arrangements,
      the  State   must share   in  the  cost  of  the
      implementation phase of cleanup.

      CERCLA requires that EPA select the remedy.

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&EPA
UNITED STATES
ENVIRONMENTAL PROTECTION
AGENCY
NATIONAL PRIORITIES LIST      NPL
     	OERR Hazardous Site Evaluation Division  Washington. DC 20460	;	May 1994

                     _.                                              ADAK NAVAL AIR STATION
                                                                                 Adak Island, Alaska

    Conditions at Proposal (October  14, 1992): The Adak Naval Air Station (NAS) covers approximately 61,000
    acres in Alaska on Adak Island, near the western end of the Aleutian Islands.  Adak Island became a military base
    in 1942, and in  1950 the Navy took control of all defense facilities on the island.  The island is characterized by
    high winds and frequent storms. The southern half of the island is a Federally designated wilderness area, and the
    entire island is part of the Alaska Maritime National Wildlife Refuge.

    In 1986, the Navy completed an Initial Assessment Study (IAS) that identified 32 areas that potentially received
    hazardous  substances — including chlorinated solvents, batteries, and transformer oils containing PCBs — over a 40-
    year period.  These areas include landfills, storage areas,  drum disposal areas, spill sites, and pits for waste oil and
    fire-fighting training. Although only 22 areas were recommended  for further action or investigation, all 32 are
    considered part of the NPL site.

    Further investigations at  19 areas in 1988 found PCBs,  lead, and silver in sediments, surface water, and soil in-
    several locations on  Adak NAS. The Navy recommended seven areas for further study and three for immediate
    action.  A number of buried storage tanks and abandoned drums were removed from the three areas.

    The contamination poses a threat to the sensitive environments both on and off the island, including the Wildlife
    Refuge, migratory pathways, spawning  areas  and feeding areas  for  fish, State  land designated for  game
    management, and wetlands.  In addition, a wide variety of marine mammals inhabit the near-shore areas of Adak
    Island.  Surface waters are used  for sport,  subsistence, and commercial fishing.  Parts of the site are  easily
    accessible  to fishermen and other members of the public. An estimated 2,000 people live within 1 mile of hazardous
    waste sources at Adak NAS.

    Status (May 1994):  The Navy, EPA, and the Alaska Department of Environmental Conservation signed a Federal
    Facilities Agreement under CERCLA Section 120 in November 1993 that will incorporate 32 IAS sites and include
    RCRA regulated units. Preliminary source evaluations (limited field investigations followed by screening-level risk
    assessments) have begun.  Public comment on an interim remedial action to "close" two landfills will be solicited.

    [The description of the site (release) is based on information available at the time the  site was scored.  The
    description may change as additional information is gathered on the sources and extent of contamination. See FR
    5600, February 11,  1991  or subsequent FR notices.]
    Superfund hazardous waste site listed under the Comprehensive Environmental Response. Compensation, and Liability Act (CERCLA) as amended

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vvEPA
UNITED STATES
ENVIRONMENTAL PROTECTION
AGENCY	       	
NATIONAL PRIORITIES LIST
     	OERR Hazardous Site Evaluation Division Washington. DC 20460	May 19Q4

                  .  —                    ALLEGANY BALLISTICS LABORATORY (USNAVY)
                                                                      Mineral County, West Virginia

    Conditions at Proposal (June 23,1993):  Allegany Ballistics Laboratory (ABL) is located in Mineral County, West
    Virginia, approximately 2 miles south of Cresaptown, Maryland.  ABL occupies  1,628 acres and is situated on the
    flood plain of the North Branch of the Potomac River, along the West Virginia-Maryland state border.  Surrounding
    land use is primarily agricultural with some forestry. The facility has been in operation since 1942, primarily for
    the research, development,  and testing of solid propellants and motors for rockets, ammunition, and armaments for
    the Navy.  ABL houses two operating plants.  Plant 1 is owned by the Navy and occupies 1,572 acres of the ABL
    facility. The remaining 56  acres are owned and operated by Hercules, Inc.  The area referred to as Plant 2, or the
    Hercopel Plant was not included by EPA under CERCLA because no releases of hazardous materials are known
    to be associated with this facility.

    Operations at ABL have generated a variety of explosive and solvent wastes.   Until 1978, the majority of these
    wastes were disposed of in onsite disposal areas.  From 1970 to 1981, some of the waste was stored in a drum
    storage area. Waste disposal and handling practices at the facility have resulted in several source areas of concern.
    Seven of these areas were aggregated  into one source known as the Northern Riverside Waste Disposal Area
    (NRWDA). Other contamination sources include two previous burning ground areas; an inert non-ordnance landfill;
    a spent photographic developing solutions disposal areas; a sensitivity test area/surface water impoundment; and a
    beryllium landfill.  Other sources of potential contamination exist at the site including a waste burning  operation
    for the disposal of contaminated material.

    NRWDA is located at the northern boundary of the ABL property along the south bank of the North Branch of the
    Potomac River. The seven sites that make up NRWDA are an ordnance burning ground; an inert burning ground;
    a former solvent waste disposal pit; three acid disposal pits; a hazardous waste drum storage area; and an incinerator
    landfill.  These sources were aggregated due to their  proximity and the similarity of the hazardous substances
    deposited in the sites.  In addition, the bedrock under the site is folded and fractured.

    Contaminants associated with these sources and  detected  in ground water and  soil samples include explosives,
    volatile organic compounds (VOCs), acids, bases, laboratory and industrial wastes, bottom sludge from solvent
    recovery, metal plating pretreatraent sludge, paints, and thinners.  Some contaminants have moved offsite and were
    detected in  the North Branch  of the Potomac River, adjacent to the site.

    Two ABL water supply wells were temporarily taken out of service in 1981 because they were found to contain
    VOCs.  The wells were then used only as  backups dunng drought conditions. The wells are not currently hooked-
    up to the supply system. Several additional water supply wells in the developed area of Plant 1 have been taken
    out of service.  Recent testing of these wells, as well as numerous monitoring wells in the developed  area, shows
    consistent contamination of the  ground water with VOCs.

    Status (May 1994): The NRWDA will be investigated dunng 1994. Activities will also take place at the inert non-
    ordnance landfill.

    [The  description of the site  (release) is  based on information  available at the time the site was scored.   The
    description may change as  additional information is gathered on the sources and extent of contamination.  See 56
    FR 5600. February 11. 1991, or subsequent FR notices.]
    Superfund hazardous waste site listed under the Comprehensive Environmental Response. Compensation, and Liability Act (CCRCLA) as amended    .>-

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«f% CDA        UNITED STATES
g"Br|_l  V\        ENVIRONMENTAL PROTECTION
  r*-m  *  *        AGENCY
NATIONAL PRIORITIES LIST       NPL
    	OERR Hazardous Site Evaluation Division  Washington. DC 20460	May 1994

                   .—          BELTSVILLE AGRICULTURAL  RESEARCH CENTER (USDA)
                                                                                  Beltsville, Maryland

   Conditions at Proposal (May 10,1993): The Beltsville Agricultural Research Center (BARC) covers 7,000 acres
   in suburban Washington, D.C.  Beltsville is located in the northern portion of Prince Georges County, Maryland.
   Owned and operated by the U.S. Department of Agriculture (USDA), the facility has conducted research on animal
   husbandry, dairying, and animal diseases since 1910. Large agricultural plots and 800 buildings, including research
   laboratories, administrative offices, shops, greenhouses, bams, and a few houses are located on the site.

   Of the 16 sources of hazardous wastes BARC has identified to date, only the Biodegradable Materials Disposal Site
   was evaluated in detail initially.  From at least 1946 to the mid-to-late 1970s, the 4-acre area was used for disposal
   of metal drums, plastic containers, casings for transformers, and laboratory wastes. USDA analyses in 1990 and
   1992 of soil, ground water, surface water, and surface  water sediments detected elevated levels of polyaromatic
   hydrocarbons; several pesticides; PCBs; 1,1,1-trichloroethane; trichloroethene; xylenes; arsenic; barium; beryllium;
   copper; lead; manganese; mercury; nickel; and zinc.

   A trailer park, high school, several housing developments, and many other  Federal installations are located within
   4 miles of the site.  Paint Branch, Little Paint Branch, Indian Creek, and Beaver Dam Creek collect drainage from
   BARC, which flows to the  Anacostia River and eventually to the Potomac  River.   Hazardous substances threaten
   the wetlands adjacent to Beaver Dam Creek.   Fisheries  in the Northeast Branch and the Anacostia River provide
   a habitat for the Bald Eagle, a species designated as endangered by the U.S. Fish and Wildlife Service, and for the
   Swamp Pink, a flower designated as a threatened species.

   Status (May 1994): Since the site was proposed, BARC has removed the landfilled material from the site and has
   backfilled the area with clean fill. The ground water and wetlands contamination, however, has not been addressed
   and will be evaluated  under  Phase II of the cleanup.  In addition to the  16 sources  previously identified, a review
   of historical site data and aerial photographs has revealed an additional 92 areas of concern that  may need further
   investigation.

   [The description  of the sire (release) is based on  information available at the time the site was  scored.   The
   description may change as additional information is gathered on the sources and extent of contamination.  See 56
   FR 5600, February 11. 1991. or subsequent FR notices.]
  Superfund hazardous waste site fisted under the Comprehensive Environmental Response, Compensauon, and Liability Act (CERCLA) as amended

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                   UNITED STATES
                   ENVIRONMENTAL PROTECTION
                   AGENCY	
NATIONAL PRIORITIES LIST       NPL
 	OERR Hazardous Site Evaluation Division Washington. DC 20460	     Mav  1994

                 _..                                  BLACKBURN AND UNION PRIVILEGES
                                                                         Walpole, Massachusetts

Conditions at Proposal  (February 7, 1992):  Blackburn and Union Privileges (also referred to in historical
documentation as the "South Street" site or "Shaffer Realty Trust" site) covers approximately 30 acres on South
Street in Walpole, Norfolk County, Massachusetts.  The area is primarily residential. Industrial and commercial
facilities have been active on 6 of the estimated 24 lots since the 17th century, with the remainder being used as
residential and non-commercial properties.  Portions of the properties (principally the commercial  properties) are
currently owned by Shaffer Realty Nominee Trust and BIM Investment Trust.

Records identify the area  occupied by these lots as "The Blackburn Privilege" and "The Union Factory Privilege"
(later shortened to "Union Privilege").   These privileges  were  two of ten original, distinct water privileges
established along-4he  Neponset River during the 17th century.  The mill/factory established on the Union Factory
Privilege produced snuff, iron, nails, cotton,  and wool, and also functioned as a tannery.  A dam on Blackburn
Privilege generated power for production of machinery, cotton, yarn, batting, and lamp wicking.

During the 17th and 18th centuries, these privileges were used for a variety of industrial and commercial uses. The
industrial processes used hazardous substances, including chromium, arsenic,  and mercury.

In 1915, Standard Woven Fabric Co. began  manufacturing asbestos brake linings on the commercial lots.  The
process started with the crushing of the raw asbestos.  A pile of asbestos waste materials remains on the site.  In
 1920, the company changed its name to Multibestos.  Operations ceased in 1937, when the properties were sold to
Kendall Co.

Kendall operations involved the washing, scouring, and bleaching of cotton, followed by fabric production involving
carding, washing, rinsing, drying,  and winding. Waste water from the cotton operations was brought within sewer
permit requirements  for pH, then discharged  to two lagoons, where the cotton fibers settled out before the water
was discharged to the sanitary sewer.  Use of Lagoon No. I stopped in 1982.  Lagoon No. 2 continued to receive
non-contact cooling water until approximately 1985.

On December 15, 1988, under CERCLA Section 106(a), EPA issued an order requiring Shaffer Realty Nominee
Trust and BIM Investment Trust to conduct a removal action at the site. During the response to the order, the
companies' contractor  detected elevated concentrations of  asbestos, lead, arsenic,  nickel, and other inorganic
elements, as well as volatile and non-volatile organic compounds, in onsite soils, sediments, and ground water.
 Municipal wells drawing on the School Meadow Brook/Mine Brook aquifer within 4 miles of the site provide
drinking water  to 19,500 residents of Walpole. The nearest well is 0.7 mile  from the site.

 The site is within the boundaries of the Neponset River drainage basin.  The river borders the commercial properties
 on the lots' southern sides.

 Status (May 1994):  A second Administrative Order was issued in January 1992, which required additional removal
 actions to eliminate the actual or threatened release of asbestos to air and water.  As a result, an asbestos pile and
 asbestos-contaminated soils onsite  have been encapsulated; a 30 inch soil cover has been installed onsite; and a 400
 feet long aluminum  plate arch  culvert has been constructed to isolate a  portion of the Neponset River running
 through the area of contamination.

 (The description of the site (release) is based on  information available at  the time the site was scored.  The
 description may change as additional information is gathered on the sources and extent of contamination.  See 56
 FR 5600, February 11, 1991, or subsequent  FR notices.]
Superfund hazardous waste site listed under the Comprehensive Environmental Response, Compensation, and Uability Act (CERCLA) as amended   _.

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&EPA
UNITED STATES
ENVIRONMENTAL PROTECTION
AGENCY           	
NATIONAL PRIORITIES LIST      NPL
     	OERR Hazardous Site Evaluation Division  Washington. DC 20460 	   May 1994

                   ._.                                                                 CHEMETCO.
                                                                                Moscow, Tennessee

    Conditions at Proposal (January 18, 1994): The Chemet Co. site is located on Highway 57 approximately 1.2
    miles east of Moscow, Fayette County, Tennessee.  The 5-acre site operated from 1978 until 1987 as an antimony
    oxide plant owned by Frank Caldon.

    Major features of the facility include three onsite buildings and two small ponds.  The Tennessee Department of
    Health and Environment (TDHE) visited the site in 1983 and 1989, and found drums containing antimony slag, two
    15-gallon drums of sulfuric acid, and several  bags of soda ash.  TDHE also found no barriers to prevent entry on
    the site, making it easily accessible.  A playground at the LaGrange-Moscow Elementary School bordering the
    eastern edge of the Chemet property posed an increased risk of unauthorized entry  to the facility. Approximately
    77 people reside^within 1 mile of Chemet.

    On March  19,  1990,  the TDHE signed an order for cleanup at the site.  The order also  stated that TDHE must
    approve all  removal and disposal of hazardous substances from the facility, and an 8-foot fence must be constructed
    to secure the facility.

    In Apnl 1990, a 5.5 feet high fence was constructed.  Approximately 300 tons of contaminated soil were removed
    from an area north of Building No. 3 in July 1990, and was stored and locked in Building No. 2.  A second removal
    of soil occurred in September  1991.  The TDHE conducted oversight of all remedial activities at the  Chemet
    facility.

    In 1992, the Tennessee Department of Environment and Conservation (TDEC), previously TDHE, collected samples
    from the onsite areas of observed contamination, ponds, drainage pathways, and the ball field of the adjacent school.
    The samples contained metals associated with the antimony oxide process, such as arsenic, antimony, and lead.
    As a result, TDEC ordered Chemet to construct a fence around the area of contamination that extended offsite. In
    May 1992,  Chemet constructed a fence around the area of offsite contamination, preventing the 600 students and
    65 workers at the elementary school from further contact with the contaminated soil. Because the contaminated soil
    is still present on the  school's property, the fence is a temporary measure.

    Status (May 1994):  The Agency is planning to conduct a non-time-critical removal of contaminated soils.  No
    viable potentially responsible party has been identified.  Field work  is  expected to begin by late summer 1994.

    [The description of the site (release)  is based on information available at the time the  site  was  scored.   The
    description may change as additional information is gathered on the sources and extent  of contamination.  See 56
    FR 5600, February 11, 1991, or subsequent FR notices./
    Supertund hazardous waste MB listed urxter the Comprehensive Environmental Response. Compensation, and Liability Act (CCRCLA) as amended

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&EPA
UNITED STATES
ENVIRONMENTAL PROTECTION
AGENCY  	
NATIONAL PRIORITIES LIST
     	OERR Hazardous Site Evaluation Division  Washington. DC 20460	May 1994

                     —                                            CHEMICAL COMMODITIES INC.
                                                                                         Olathe, Kansas

    Conditions at Proposal (January 18, 1994):  The Chemical Commodities Inc. (CCI) site occupies approximately
    1.5 acres in central Olathe, a suburban community of Kansas City with a population of approximately 60,000. The
    site is bounded to the east by the Burlington-Northern railroad right-of-way, to the south by a vacant lot, and to the
    west and north by single-family residences.  Land use in the area is primarily commercial and residential.

    CCI is  an inactive chemical recycling facility  that handled, stored, repackaged, and  distributed a variety  of
    chemicals, including surplus industrial and laboratory chemicals, hazardous substances, and hazardous wastes.  CCI
    operated at the site from 1951 until 1989.  Before 1951, the property was occupied by an ice manufacturer.
    Currently, the only structure remaining at CCI is the main warehouse; no improvements are present throughout the
    remainder of the grounds. A covered mound of excavated contaminated soil is also present at the site.

    The CCI facility is associated with a long history of regulatory inspections, investigations, citations, non-qualifying.
    removals, and emergency responses.  Site assessment investigations  conducted in the past documented poor
    housekeeping, inappropriate material handling and storage practices,  and facility conditions which allowed materials
    to migrate offsite.  Concerns for public health and safety were raised throughout the period of operation of the
    facility, especially those associated with emanating odors, precipitation runoff from the site, and fires.

    In  1980, CCI acquired a Resource  Conservation and Recovery Act permit as a generator and transporter  of
    hazardous waste.  EPA issued an Administrative Order on Consent regarding the site in 1985, and again in 1989.

    Investigations conducted at the site by CCI, Kansas Department of Health and Environment, and the EPA have
    indicated that soil and ground water are contaminated, and that hazardous substances have migrated offsite via air
    and surface water runoff. A wide range of metals, volatile organic  compounds, semi-volatile organic compounds,
    and pesticides have been detected in the soil and ground water.  Ground water in the Olathe area  is not utilized  as
    a  source  for municipal  drinking  water.   The nearest  private ground water well  listed in  State  records  is
    approximately three miles southwest of the site.

    Several  other sources were present but not included in the evaluation due to lack of specific information regarding
    the structures.

    An observed  release to the air has been established at CCI due to the level of contamination detected during a series
    of air sampling events.   High concentrations of two hazardous substances associated with the contaminated soil
    source were  detected in an air sample collected downwind of the site.

    Ground water was not included in the HRS evaluation because of its limited use, although ground water at and
    around  the site is contaminated with high concentrations of halogenated organic compounds.  Chemical analysis of
    ground  water samples collected from onsite and offsite monitoring wells indicated  that hazardous substances are
    present  in the shallow ground water beneath the site.

     Soil exposure was not included in the HRS evaluation due to the  limited  accessibility to the sources at the site,
    although contaminated soil has been documented and is considered  a source at the site.

    Status  (May 1994):  A  time-cntica! removal was conducted by EPA  from  1989  to the present. The removal
    consisted of characterizing and disposing of chemicals; excavating and disposing of soil; decontaminating buildings;
    and assessing and treating ground water  contamination.  EPA constructed an interceptor trench to capture free
     product contamination from the ground water table. The captured ground water is treated op site prior to discharge.
     Final cleanup actions will address subsurface soil and ground water contamination.

    {The description  of the site (release) is based  on  information available at the time  the site was scored.   The
     description may change as additional information is gathered on the sources and extent of contamination. See 56
     FR 5600, February 11. 1991. or subsequent FR notices./                                                   (
    Superfund hazardous west* sit* listed under me Comprehensive Environmental Response. Compensation, and Liability Act (CERCLA) as amended

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vvEPA
UNITED STATES
ENVIRONMENTAL PROTECTION
AGENCY
NATIONAL PRIORITIES LIST       NPL
     	OERR Hazardous Site Evaluation Division Washington DC 20460	May 1994
                                                 CHEVRON CHEMICAL CO.  (ORTHO  DIVISION)
                                                                                       Orlando, Florida

    Conditions at Proposal (January 18, 1994): The Chevron Chemical Co.  Inc. (Ortho Division) site is located in
    Orlando, Orange County, Florida.  The site covers approximately 4.39 acres in an industrial area at 3100 Orange
    Blossom Trail.  As a result of an EPA removal action, all concrete, buildings, and the water tower have been
    removed.

    The Chevron Chemical Co. operated a chemical blending facility for pesticides and other crop sprays between 1950
    and 1976.  The facility formulated a variety of liquid and powdered pesticides, citric sprays, and nutritional sprays.
    Chemicals used in pesticide formulation  included xylene, kerosene, mineral oil, and aromatic naphtha. A few of
    the pesticides formulated in large volumes consisted of chlordane, hndane,  dieldrin, and aldrin.

    Pnor to 1970, two unlined rinsate ponds onsite were used for the collection and disposal of pesticide formulating
    rinse water, barrel rinse water, and storm water.  After 1970, the pesticide formulating rinsate was collected and
    disposed of offsite at an unknown location.

    Chevron Chemical ceased operations in 1976. The remaining inventories were removed from the site and the rinsate
    ponds were backfilled with soil prior to.  the sale of the property in 1978 to Robert R. Uttal. Mr.  Uttal removed
    the pesticide formulating equipment and remaining drums, and washed the building interior with rinse water. The
    nnse water was not collected.

    Mr. Uttal  owned and operated the Central  Florida Mack Trucks Service Center at the site from  1978 to  1986.
    Operations consisted of overhauling truck engines, starters, generators and front/rear ends. In March 1984, a tanker
    truck filled with 3 percent hydrochloric acid and an unknown amount of nitric acid apparently leaked in the vicinity
    of the former western nnsate pond, resulting in an explosion. Facility management excavated the contaminated soil
    and disposed of it in a secured landfill.   The excavation was backfilled with clean fill.

    In May 1989, the EPA conducted a Screening Site Inspection at the site.  Soil samples indicated the presence of
    pesticides, benzene, toluene, xylene, chlordane, naphthalene, and metals. Ground water samples contained metals,
    benzene, toluene, xylene, pesticides, tnchlorethylene, and chlorobenzene.

    In September 1990, Chevron Chemical conducted a Contamination Assessment.   Soil samples contained chlordane,
    xylene, dieldrin, aldrin, endrin, heptachlor,  ethion, and arsenic.  Ground water samples indicated the presence of
    benzene, toluene, xylene, chlorobenzene, aldnn, dieldrin, and heptachlor.

    On May 15,  1990, EPA, Chevron Chemical  Co., and Mr. Uttal signed an Administrative Order on Consent for the
    performance of a removal action at the site.  Chevron  Chemical submitted a Removal Action Plan that incorporated
    soil removal, site dewatering, water treatment, and disposal of treated water to an infiltration gallery onMte.  The
    plan was approved by EPA;  Chevron Chemical has completed the removal action.  The order did not address
    ground water contamination.

    On January 25,  1993, EPA and Chevron entered into an Administrative Order on Consent for Chevron to conduct
    and implement a remedial investigation and  feasibility study (RI/FS) at the site.

    Status (May 1994): Preliminary results of the RI showed an elevated level of chlordane, which is believed to have
    migrated via drainage from the site to the neighboring trailer park.  In March 1994, Chevron removed b,oils from
    the trailer  park.

    [The description of the  site (release) is based on information available at the time the site was  scored.   The
    description may change  as additional information is gathered on the sources and extent of contamination. See 56
    FR 5600, February II,  1991, or subsequent FR notices./
   Supertax! hazardous waste «te listed under tfie Comprehensive Environmental Response. Compensation, and Liability Act (CERCLA) as amended

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 4% r"QJ\
Vgr tinrV
                  UNITED STATES
                  AGEN?YNMENTAL PROTECTION
                  OERR Hazardous Site Evaluation Division  Washington. DC 20460                           M^v 1994
                • — •                                           FORT RICHARDSON (USARMY)
                                                                              Anchorage, Alaska

Conditions at Proposal (June 23,  1993):  Fort Richardson occupies a 61,900 acre  area  located within the
municipality of Anchorage in south-central Alaska.  The installation is bounded by the city of Anchorage and
Elmendorf Air Force Base to the west and by Eagle Bay and the Knik Arm of Cook Inlet to the north.  Fort
Richardson's southern and eastern boundaries consist of undeveloped lands and Chugach State Park.

Three sources of contamination were identified by the Army but do not represent all known or suspected sources
of contamination at the Fort Richardson installation.  These sources  are the Eagle River Flats (ERF) ordnance
impact area, the Poleline Road Disposal Area (PRDA), and the Roosevelt Road Transmitter Site (RRTS).

ERF is located in wetlands associated with the Eagle River delta in the northwestern comer of the installation. ERF
has served as the primary ordnance impact area for Fort Richardson since World War II. The ordnance testing area
encompasses 2,500 acres of wetlands, which serves as an important habitat for waterfowl such as ducks, geese, and
swans during spring and fall migrations. Sediment and surface water  samples collected from ERF in August and
October 1989 and in 1991 revealed elevated levels of heavy metals, explosive compounds, and white phosphorous.
Copper, cadmium, nickel, zinc, and mercury concentrations in surface water wetland samples exceeded the Ambient
Water Quality Criteria.

PRDA is located approximately 1. 1 miles southwest of the Eagle River.  PRDA was identified by a former soldier
who stated that hazardous  substances were buried  there in the  1950s; a 1954  Army Corps  of Engineers map
confirmed the  existence of this disposal area.   In 1990,  an expanded site investigation conducted by the Army
confirmed the presence  of volatile organic compounds (VOCs) in soil  and shallow ground water at PRDA.

RRTS consists of a bomb-proof underground bunker and the remnants of support facilities constructed in the 1940s.
In May and June 1990, the Army conducted sampling operations as part of a site investigation follow-up. Analytical
results from this investigation indicated contamination by PCBs, VOCs, semi-volatile organic compounds, dioxins,
asbestos, and inorganic  elements throughout RRTS.

The Eagle River is used for recreational fishing and supports a wide variety of game fish including king, silver, red,
pink, and chum salmon; dolly varden; arctic char;  rainbow trout; grayling; and whitefish.  The river maintains
spawning runs of chinook,  coho, and pink salmon.  Stickleback inhabit salt marshes along the Knik Arm and are
common within the shallow ponds and some impact craters within  ERF.  The American peregrine falcon,  a
federally-designated endangered species, and the federally-designated threatened arctic peregrine falcon, migrate
through the area.

Status (May 1994): EPA, the Army, and the Alaska Department of Conservation are completing a Federal Facility
Agreement (FFA), which is expected to be signed by early summer. The FFA will address the cleanup of this site.-

[The description of the site (release) is based on information available at the time the site was scored.   The
description may change as  additional information is gathered on the sources and extent of contamination. See 56
FR 5600, February 11 , 1991 , or subsequent FR notices./

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vc/EPA
UNITED STATES
ENVIRONMENTAL PROTECTION
AGENCY	      	
NATIONAL PRIORITIES LIST      NPL
     	  OERR Hazardous Site Evaluation Division  Washington. DC  20460	   May 1934

                     _..                                                       FRONTIER FERTILIZER
                                                                                       Davis,  California

    Conditions at Proposal (January 18, 1994): Frontier Fertilizer is a 13-acre site located near the eastern boundary
    of the City of Davis in Yolo County, California.  The site is north of Interstate 80, on the corner of Road 32A and
    Mace Boulevard.  Since World War II, the facility has been used for various agricultural activities.  The Barber
    and Rowland Co. operated a pesticide and fertilizer distribution facility on  the site from 1972 to 1982.  The Frontier
    Fertilizer Co. used  the site from 1982 to  1987.   Operations consisted of delivering pesticides, herbicides, and
    non-bulk chemicals  in cans, drums, and other containers. Currently, the site is used as a  maintenance yard for
    agricultural equipment.

    Both the Barber and Rowland and Frontier Fertilizer companies used a former disposal basin, approximately 4,000
    cubic feet in volume, to dispose of unused pesticides and fertilizers. Returned tanks and containers were washed
    and the rinsate was dumped into the disposal basin or onto the ground.  In 1985, approximately 1,100 cubic yards
    of contaminated soil were excavated by Frontier Fertilizer from the former disposal basin and  land farmed on a field
    east of the site.

    Surface and subsurface soils in  the area of the former disposal basin are contaminated with 1,2-dibromoethane
    (EDB),  1,2-dichloropropane  (1,2-DCP),   l,2-dibromo-3-chloropropane  (DBCP),  Disyston (disulfoton), ethyl
    parathion, Treflan, and Eptam. EDB, 1,2-DCP, and DBCP were also found in ground water samples collected from
    onsite and offsite monitoring wells.

    Other contaminants that were detected in ground water samples but have not been attributed to the former disposal
    basin include benzene, carbon tetrachloride, chlorobenzene, chloroform,  1,2-dichlorobenzene, 1,2-dichloroethane,
    1,3-dichloropropene,  p-isopropyltoluene,  methylene  chloride,  naphthalene,  toluene,   1,1,1-trichloroethane,
    trichloroethylene, 1,2,3-trichloropropane, and xylenes.  These  contaminants may be from other potential sources
    at the site such as underground storage tanks, waste oil storage tanks, northern fuel area,  railroad hopper cars,
    washracks, grain storage building, east and west pole barns, central machine shop, eastern farm shop, western and
    central concrete slabs, and tomato grading station.

    The Frontier Fertilizer  site was never issued a Resource Conservation and Recovery Act (RCRA) permit to treat,
    store, or dispose of hazardous wastes. The California Department of Toxic Substances Control (DTSC) issued a
    remedial  action order to Frontier Fertilizer in August 1987, and has regulated all site investigations since that time.

    Site  investigations have characterized  the underlying interconnected aquifer  as consisting of four water-bearing
    zones. Sampling of onsite monitoring wells has shown a release of contaminants from the site to the upper three
    water-beanng zones. The lowest water-bearing zone supplies water to the City  of Davis (population 43,168) and
    the Barthel Mobile Home Park (population 540).  Although actual contamination has not been documented in any
    of the drinking water wells, the  potential for ground water contamination at the Frontier Fertilizer site remains.

    In March and April  1993, EPA's Emergency Response Team collected and analyzed soil samples in areas of known
    or suspected contamination. The levels of contamination found did not trigger the need to perform a time-critical
    removal action.

    Status (May 1994): The most recent round of quarterly ground water sampling was completed in March 1994.
    The remedial investigation/feasibility study for soil and ground water is being developed.

    (The description of the site (release)  is based on information available at  the time the site was scored.  The
    description may change as additional information is gathered on the sources and extent of contamination.  See 56
    FR 5600, February  11, 1991, or subsequent FR notices.]
    Suoerlund hazardous waste site listed under frie Comprehensive Environments/ Response. Compensation, and liability Act (CCRCLA) as amended

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                   UNITED STATES
                   ENVIRONMENTAL PROTECTION
                   AGENCY          	
NATIONAL PRIORITIES LIST
 	OERR Hazardous Sita Evaluation Division Washington. DC 20460    	Mav 1994

                 ___                                               GCL TIE AND TREATING INC.
                                                                     Village of Sidney, New York

Conditions at Proposal (January 18, 1994): The GCL Tie and Treating Inc. (GCL) site is a 26-acre inactive mill
and wood treating plant located on Delaware Avenue, in the Village of Sidney, Delaware County, New York.  The
site is bordered by Delaware Avenue to the south, property  owned by Homer Howe to the west, Railcon Inc. to
the north, and Unadilla Silo and VanCott Development Inc. to the east. An easement for the Delaware and Hudson
Railroad traverses the northern most part of the property.   Land use around the site  is primarily industrial and
commercial; residential areas are  located within 1  mile. GCL is situated within 1 mile of the southern bank of the
Susquehanna River. The site eventually drains by overland flow to the Susquehanna by way of an onsite wetland
which discharges to an unnamed tributary of the river. The Susquehanna River is a documented fishery and is also
used for recreational purposes. The river is not used for drinking water in the vicinity of the site.

The GCL property has been used as a railroad tie manufacturing and treating plant since  the 1940s.   Logs were
brought to the site for cutting and pressure-treating with creosote. The property was purchased in 1979 by Railcon
Materials Inc. and Railcon Wood Products Inc.  In 1983, Railcon formed the corporation called GCL Tie and
Treating Inc. GCL ran the facility until 1987, when they filed for bankruptcy and Railcon regained control of the
operation.  Railcon sold all the inventory and equipment  and abandoned the site.  The site has remained  inactive
and current  ownership is  being investigated.  Both  EPA  and the New York State Department of Environmental
Conservation initiated  criminal  investigations at the site  for environmental violations under  the Resource
Conservation and Recovery Act,  the Comprehensive Environmental Response, Compensation, and Liability Act,
and the Clean Water Act.

Several potential waste sources including areas of contaminated soil and tanks containing creosote are located on
the site.  A creosote  spill occurred in November 1986 when  a  pressure tank  malfunctioned, resulting in an
approximate 1,500 gallon spill of creosote to the surrounding soil.  This soil was excavated by GCL and placed in
a soil mound near the main building where it is still located.  Former GCL employees submitted affidavits stating
that it was standard operating procedure to dispose of creosote-contaminated material in wetlands adjacent to the
site. At various times, unspecified quantities of creosote-contaminated material previously added to the soil mound
were removed and deposited in the wetland area.

In October 1990, the EPA collected samples from the various potential waste sources  on  the site including areas
of contaminated soil, a debris pile, and aboveground storage  tanks. A sample of creosote was also obtained from
GCL's supplier of the material, which was used as a chemical fingerprint to match the creosote constituents used
by GCL against those  found in the various chemically analyzed samples.  The proportionality of the constituents
was very similar between the sample from the supplier, and the creosote constituents chemically identified to date
in vanous environmental  samples.

Status (May 1994): Several removal activities have been performed, including completing a preliminary removal
assessment,  delineating surface contamination, installing a chain link fence, stabilizing the site, and identifying and
disposing of containerized and uncontainenzed hazardous waste.  In  addition, a composting treatability study for
soil was completed. A remedial investigation/feasibility study is underway, which will evaluate broader site related
threats to human health and the environment, as well as propose long-term response alternatives to clean up the site.

[The description of the site  (release) is based on  information available at the time  the site was scored.  The
description may change as additional information is gathered on the sources and extent of contamination. See 56
FR 5600. February II. 1991. or subsequent FR notices.]
Superfund hazardous wast* site listed under tne Comprehensive Environmental Response, Compensation, and UabiSty Act (CERCLA) as amended

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c/EPA
UNITED STATES
ENVIRONMENTAL PROTECTION
AGENCY	
NATIONAL PRIORITIES LIST       NPL
     	OERR Hazardous Site Evaluation Division  Washington. DC 20460	        May 1994

                     —                        HANSCOM FIELD/HANSCOM AIR  FORCE BASE
                                                                            Bedford, Massachusetts

    Conditions at Proposal (May 10,  1993):  Hanscom Air Force Base occupies approximately 1,120 acres in the
    towns of Bedford, Concord, Lexington, and Lincoln in Middlesex County, Massachusetts.  The facility is located
    in a light industrial area of eastern Massachusetts.  A public airfield was constructed at this location in 1941 and
    military operations began in 1942.  In 1952, the Commonwealth ceded 396 acres of land and leased 641 acres to
    the Air Force; 83 acres were retained by  the Commonwealth.  After military flying activities ceased  in 1973, the
    Commonwealth regained control of the leased portion of the base.  The airfield and the surrounding land were given
    to the Massachusetts Port Authority (Massport), which operates a civilian airport as L.G. Hanscom Field. The Air
    Force still occupies the 396 acres ceded to it in 1952 and operates the Electronic Systems Division of the Air Force
    Systems Command as Hanscom Air Force  Base. The entire original 1,120-acre area is considered a Federal facility.

    During the 32 years that the Air Force occupied the airfield, numerous hazardous substances were used, generated,
    and disposed of on what is now Massport property and on the Airbase.  These substances included chlorinated.
    solvents, gasoline and jet fuel, aromatic solvents, tetraethyllead, and PCBs. A total of 14 possible source areas have
    been identified to date.  Among them are: two former fire training areas, a  paint waste disposal area, a jet fuel
    residue/tank sludge area, two landfills, a former industrial waste water treatment system, a former filter bed area,
    an elemental mercury spill, and a PCB transformer  storage area.

    Bedford draws its drinking water from ground water beneath the base.  Three of the Town's wells were closed in
     1984, when they were found to be contaminated with volatile organic compounds (VOCs).  In addition, two wells
    for the Veterans  Administration Hospital in Bedford were closed in 1980, when VOCs were detected in the well
    water.  In 1991,  the Town of Bedford conducted  a  remedial investigation at  the base.  Ground water and surface
    water samples  contained VOCs and it was concluded that the base was a likely source of the contamination in the
    Town water supply.

    Numerous remedial activities have taken place on both the Air Force and Massport properties to address areas of
    contamination.  Drums  have been removed at both the Paint Waste Disposal Area and the Jet Fuel  Residue/Tank
    Sludge Area.  Contaminated soils have been removed and placed in a secured landfill. A ground water remediation
    system has been constructed to remove VOC contamination from the ground water beneath the base.

    Status (May 1994):  EPA is considering various  alternatives for the site.

    [The description of the site (release) is based on  information available at the time  the site was scored.   The
    description may change as additional information is gathered on the sources and extent of contamination.  See 56
    FR 5600, February 11, 1991, or subsequent FR notices./
    Superlund hazardous waste site listed under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) as amended

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&EPA
UNITED STATES
ENVIRONMENTAL PROTECTION
AGENCY          	
NATIONAL PRIORITIES LIST       NP1
     	OERR Hazardous Site Evaluation Division  Washington. DC 20460	        May 19Q4

                   .  —                       JACKSON  PARK HOUSING COMPLEX (USNAVY)
                                                                         Kitsap  County, Washington

    Conditions at Proposal (June 23, 1993):  The Jackson Park Housing Complex (JPHC) is located east of Highway
    3, approximately 2 miles northwest of Bremerton, Washington. The area west of Highway 3 includes a golf course,
    an urban area, and an undeveloped wooded area. A wooded park and urban area are located south of Highway 3.
    JPHC occupies approximately 300 acres of land that includes housing for approximately 3,000 military personnel,
    recreational areas, undeveloped areas, a hospital, and community services buildings.

    The facility was operated as a Naval ammunition depot from 1904 to 1959.  From 1910 to 1959, unused ordnance
    was disposed of by open burning along the shoreline.  From 1918 to 1959, during low tides, various marker dyes
    and smoke candles were placed on the beach and  ignited, where they continued to bum until the tide rose and
    extinguished th&'fires.  Residual ordnance powders from loading operations were disposed of by open burning along
    the waterfront or at a fill area at the south end of the site.   During ordnance handling and  loading operations,
    potentially hazardous dust and powder were deposited on the floor and  washed into floor drains emptying into
    Ostrich Bay.  Waste acid and caustics from case cleaning operations were also flushed down floor drains.  Waste
    water that contained elevated levels of explosives from demilitarization operations went down the nearest drain.
    Since many types of casings and projectiles that were cleaned and repaired .were made of brass and bronze alloys,
    heavy metals such as copper, zinc, tin, and other metals were dissolved into acid and base solutions and drained
    into the bay.  In 1959, ordnance and industrial operations were relocated to SUBASE Bangor.  Between 1973 and
     1975, nearly all ammunition buildings were demolished and the current facility was constructed.  Industrial activities
    at JPHC included ordnance storage, loading, testing, burning, and disposal; case and projectile cleaning; tank and
    powder can repair; bag dyeing; fuse operations; demilitarization; and pier operations. In addition, the site contained
    incinerators; paint, locomotive, battery, industrial,  and machine  shops; and a boiler plant.

    According to several people.  Ostrich Bay occasionally became a yellow color due to discharges  emanating from the
    ordnance facility. The yellow color was a result of waste water containing ammonium picrate (an explosive) or
    dyes. During decontamination and demolition operations in 1974 and 1975, ammonium picrate was found in storm
    drams leaving abandoned buildings that had formerly housed ordnance  operations.

     From 1918 to 1959, untreated sewage and waste water from ordnance and other activities were discharged directly
     into Ostrich Bay outfalls located along the waterfront.   The Navy sampled the outfalls in 1991 and confirmed the
     presence of arsenic; cadmium; chromium; copper; lead; nickel; zinc; 2,4,6-tnnitrotoluene;2,6-dinitrotoluene; 1,3,5-
     trimtrobenzene; and 1,3-dimtrobenzene.

     In 1991 and 1992, soil, sediment, and fish samples were collected as part of two environmental investigations
     conducted by the Navy.   Analytical results from these  investigations show that there  is extensive surface soil
     contamination at the site.  Hazardous substances were also detected in sediment and fish samples collected from the
     bay and can be attributed to the waste water outfalls. The Navy has closed the beaches at the site to shell fishing.

     Ostnch Bay has been identified by EPA as a special area requiring protection under the National Estuary Program.
     The bay is used for both recreational and  commercial  fishing, and extensive wetland habitats exist adjacent to the
     site.  EPA, the  Navy, and the Washington Department of Ecology are negotiating an  interagency agreement to
     address the  contamination at the site.

     Status (May 1994):  Two interim actions have  been initiated at  the site.  The first took place at an area known as
     Site 101 (near Root Court).  Fuel oil was  stored in a 100,000 gallon tank near the beach area and a pipeline  from
     the tank to  the beach area was leaking  onto the beach.   The tank and pipeline were mostly removed, the
     contamination cleaned up, and the area restored.  The second action consisted of other underground storage tanks
     that were removed and the area also being restored.

     [The description of the site (release) is based on information  available at the time the site was scored.   The
     description may change as additional information is gathered on the sources and extent of contamination.  See 56
     FR 5600. February 11. 1991, or subsequent FR notices.]
    Superfund hazardous waste site listed under (he Comprehensive Environmental Response. Compensation, and Liability Act (CERCLA) B» amended   p.

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vvEPA
UNITED STATES
ENVIRONMENTAL PROTECTION
AGENCY
NATIONAL PRIORITIES LIST      NPL
     	OERR Hazardous Site Evaluation Division Washington. DC 20460	May 1994


                               LABORATORY FOR ENERGY-RELATED HEALTH  RESEARCH/
                                                               OLD CAMPUS  LANDFILL (USDOE)
                                                                                    Davis, California

    Conditions at Proposal (January 18, 1994): The Old Campus Landfill site is a Federal Facility that was leased
    by the U.S.  Department of Energy as the Laboratory for Energy-Related Health Research (LEHR).  The site
    occupies approximately 15 acres on Old Davis Road, Davis, Solano County, California.  The Old Campus Landfill
    is situated on the Putah Plain adjacent to Putah Creek. The site is surrounded by agricultural land to the south, east,
    and west.  The University of California-Davis (UC-Davis) campus and the City of Davis are north of the site.

    LEHR engaged in studies on the biological effects of bone seeking radionuclides (strontium-90 and radium-226) in
    lab animals (beagles) from I960 to 1989.  During the 29 years of operations, LEHR  generated and disposed of
    radioactive, biologic, and chemical wastes, as well as municipal and lab wastes.  Dogs were buried onsite in the
    early years. Later the dog carcasses were shipped to Hanford for disposal. Approximately 35,000 gallons of sludge.
    effluent (dog feces) contaminated with strontium-90 was disposed of in underground concrete banks. The site was
    also used by  the university as a landfill area for residential and laboratory waste disposal from the late 1940s to
    1967. The site contains radioactive waste disposal areas for waste generatad  from campus  and LEHR activities.
    Records indicate that radioactive wastes with long half lives were buried onsite in trenches and holes.  Two separate
    special liquid radioactive waste treatment and discharge systems were in operation at LEHR: the systems discharged
    radionuclides to leach  fields onsite.

    Quarterly sampling by DOE has revealed elevated concentrations of chloroform, carbon-14, and tritium in five of
    23 monitoring wells. There are 19 municipal wells within 4  miles of the site serving approximately 47,500 people.

    The nearest resident is approximately 0.5 miles from the site and the estimated population within 4 miles is 41,789.

    The LEHR facility is listed in the Resource Conservation and Recovery Act (RCRA) database as a large quantity
    generator.

    Status (May 1994):  By summer 1994, plans will be in place to decommission two onsite animal labs, demolish
    two buildings, and excavate and remove a  disposal tank. The remedial investigation/feasibility study is currently
    being developed.

    [The  description of the site (release) is based on information available at the time the site  was  scored.   The
    description may change as additional information is gathered on the sources and extent of contamination. See 56
    FR 5600, February 11, 1991. or subsequent FR notices.]
    Supwfund hazardous wait* sit* li*t*d und«f th« Compr«h«n*iv« Environmental Raspon**, Compensation, and Liability Act (CERCLA) a* amsnded

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xvEPA
UNITED STATES
ENVIRONMENTAL PROTECTION
AGENCY
NATIONAL PRIORITIES LIST       NPL
     	OERR Hazardous Sita Evaluation Division  Washington. DC 20460	      May 1994

                     	LANGLEY AIR FORCE BASE/NASA LANGLEY RESEARCH CENTER
                                                                                   Hampton, Virginia

    Conditions at Proposal (May 10, 1993): The Langley Air Force Base (LAFB)/NASA Langley Research Center
    (NASA Langley) site consists of two adjacent Federal facilities located in Hampton,  Virginia, on a peninsula
    separating  the Northwest and Southwest branches of the Back River.   The Back River  supports commercial and
    recreational crab, oyster, quahog, and fin fishing. The Back River's two branches form a tidal estuary that empties
    into the Chesapeake Bay.

    LAFB is a 3,152-acre site with more than 10,000 employees. NASA Langley covers 787 acres and employs an
    additional 5,000 government and contract workers. Residential, rural, and intertidal wetlands surround the facilities.
    Wetlands in the Plum Tree Island National Wildlife Refuge are located northeast of the site.

    LAFB has been an airfield and aeronautical research center since 1917 and is the home base  for the First Tactical
    Fighter Wing.  NASA Langley is a research facility that conducts 270 operations in 191 buildings and operates 40
    wind tunnels.  Wastes generated at LAFB and NASA Langley include waste oils, solvents, paint wastes, pesticide
    containers  and nnse waters, photographic wastes, scrap matenals, used  batteries, and printed circuit board plating
    wastes.  PCBs and polychlonnated terphenyls (PCTs) were used in  hydraulic systems, electrical equipment,
    compressors, and casting operations.

    Previous studies conducted at the two facilities identified over 30 possible sources of contamination. Initially, four
    sources were evaluated in detail.

    Landfills  10, 11, and  12, located in  the northern part of the site were used from approximately  1950 until 1980.
    Wastes known or suspected to have been disposed  of at this source  included waste solvents and paints,  used
    batteries, scrap metal, pesticides, municipal wastes, general chemicals, sanitary refuse, photofinishing wastes, and
    hospital and lab wastes.  Analytical data revealed lead, cadmium, silver, and phenols in  ground water. Available
    information indicates that this area had been predominantly wetlands.

    Sediment and biota in the Back River and Tabbs Creek (a tributary of the northwest branch of the Back River) are
    contaminated extensively with PCBs and PCTs. Tabbs Creek, in which highest levels of contamination were found,
    is inaccessible  to the public for security  reasons and has been posted as a "no fishing"  area because of coliform
    contamination.

    Storm sewers, sumps, and three drainage systems also are being evaluated (Sources Nos. 11, 12, and 30). Releases
    have been observed below  the storm sewer outfalls.  The storm sewers are subject to storm and tidal influences.
    Electrical  equipment containing PCBs and lubricating oils, hydraulic fluids,  mercury, and pesticides have  been
    released on the site.

    Status (May 1994):  EPA  is considering various alternatives for the site.

    [The description of the site (release) is based on information available at the time the site was scored.   The
    description may change as additional information is gathered on the sources and extent of contamination.  See 56
    FR 5600,  February 11, 1991,  or subsequent FR notices.]
    Suparfund hazardous waste site listed under ma Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) as amended

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vvEPA
UNITED STATES
ENVIRONMENTAL PROTECTION
AGENCY             	
NATIONAL PRIORITIES LIST*      NPL
     	   OERR Hazardous Sit9 Evaluation Division  Washington, DC 20460	May 1994

                    • -                                            LOWER  ECORSE  CREEK DUMP
                                                                               Wyandotte, Michigan

    Conditions at Proposal (January 18, 1994): The Lower Ecorse Creek Dump site is located in Wyandotte, Wayne
    County, Michigan.  The site consists of the residence at 470 North Drive and three neighboring parcels of land.
    The site occupies a level area with the back of the lots abutting the Ecorse River. During the period between 1945
    and 1955, and prior to the house at 470 North Dnve being built, the low lying swampy area of the creek was filled
    with material from local industries.  Some of the  fill material contained what has been confirmed as ferric
    ferrocyanide, commonly referred to as "Prussian Blue".  The blue soil was also found across the street at 471 North
    Drive, approximately two feet below the surface and the owner of the residence at 469 North Drive also reported
    that he found the blue soil in his yard.  In addition, there are  two vacant lots east of 470 North Drive where
    Prussian Blue is exposed.  Neighborhood children have used portions of these lots as a go-cart track and wearing
    of the topsoil bythe go-carts has exposed the Prussian Blue.

    The EPA was contacted by the Wayne County Health  Department on October 25, 1989.  EPA tasked its Technical
    Assistance Team (TAT) on October 27,  1989, to conduct a site investigation and sampling.  Sampling results" were
    provided to ATSDR for review and assessment.  ATSDR's review on November 22, 1989, concluded that "The
    levels of cyanide found  in the soil do present an urgent public health threat..  Steps to eliminate any direct contact
    with the contaminated soil need to be taken immediately."

    Following ATSDR's determination that the presence of cyanide-contaminated wastes in an unrestricted residential
    area presented an immediate and significant public health threat,  EPA's Emergency Response Branch initiated
    removal activities.  On  December 4, 1989, work commenced to cover the-contaminated areas  with six inches of
    clean topsoil and fill in  areas of the driveway and sidewalk which had been previously excavated by the property
    owner. This action eliminated physical contact with Prussian Blue and related cyanide compounds which had spread
    throughout the area.  The initial action was completed  in the summer of 1990 with the establishment of a vegetative
    cover.

    The Final ATSDR Health Advisory which was released on August 13, 1993, recommended the following actions:
    1) immediately dissociate the affected residents from  cyanide contamination, which is at levels of health concern
    in residential subsurface soils; 2) implement permanent measures to remediate the contamination as appropriate; and
    3) consider including the Lower Ecorse Creek Dump  site  on the EPA National  Priorities List or, using other
    statutory or regulatory authorities as appropriate, take  other steps to characterize the site and take necessary action.
    Such activities are better addressed under remedial authorities than removal considering the costs and time involved
    in an extensive groundwater study and potential groundwater remediation.

    Additional recommendations by  ATSDR  include conducting  a  door-to-door well survey  and well  sampling  to
    determine  the extent and level of any groundwater contamination.  ATSDR also suggests restricting digging into
    contaminated subsurface soil to prevent  human contact with contaminated soils  and released cyanide gas.

    Status (May 1994):  EPA is considering various alternatives for the site.

    /The description of the site (release) is based on infonnation available at the time the ATSDR Health Advisory was
    issued.   The description may  change as  additional  information is gathered on  the sources  and  extent  of
    contamination.  See 56  FR  5600, February 11. 1991, or subsequent FR notices.]
    Superfund hazardous waste site listed under the Comprehensive Environmental Response. Compensation, and Liability Act (CERCLA) as amended

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&EPA
UNITED STATES
ENVIRONMENTAL PROTECTION
AGENCY
NATIONAL PRIORITIES LIST       NPf
     	OERR Hazardous Site Evaluation Division Washington. DC 20460	Mav 1994

                     — "              MARINE CORPS COMBAT DEVELOPMENT COMMAND
                                                                                    Quantico, Virginia

    Conditions at Proposal (May 10,1993): The Marine Corps Combat Development Command (MCCDC) is located
    in Quantico, Virginia, 35 miles south of Washington,  D.C.,  along the Potomac River.  The MCCDC covers
    approximately 56,000 acres  in southern Prince William County, northern Stafford County, and eastern Fauquier
    County.  MCCDC is bordered by Prince William Forest Park to the north and the Potomac River to  the east.
    Residential areas are located on the western and southern portions of the base.

    Operations at MCCDC began in 1917 when 5,300 acres of land adjacent to the Potomac River near Quantico were
    leased by the Department of Defense in order to establish a new marine training camp.  In April 1943, 50,985 acres
    of land west of Route I was obtained to accommodate increased training activities.  Currently the emphasis at the
    Command is to prepare Marine Corps officers for general  combat by providing varied background in tactical
    operations and performing research and development of Marine Corps equipment.

    Studies conducted by the Navy m  1988 identified five areas of potential contamination.  The three described below
    were initially evaluated in detail.

    The Old Landfill was the primary base landfill from the 1920s to 1971. It covers 8 acres along the west  bank of
    the Potomac River.  The northern portion of the landfill, known as the Defense Reutilization Marketing Office
    storage yard, was used for the draining and storage of electrical transformers.  Extensive PCB contamination has
    been identified in soils, ground water, and Potomac River sediments.

    The Recently Closed Landfill is a 28-acre landfill that operated from 1971 to 1983. Wastes disposed of from base
    activities included waste paints and solvents.  Landfill leachate was observed leaking from the southern portion of
    the landfill. Shallow ground water and leachate samples were found to contain various organic compounds.

    The Old Batch Plant is an area 30 feet by 50 feet that was used for the storage of electrical transformers in the
    1970s. The majority of the area is paved, but covered with varying amounts of soil.  Soils are contaminated with
    PCBs.  Surface  water runoff drains into the Potomac River.

    Another source  that has been identified is the Pesticide Burial Area, where pesticides were dumped into a pit 16
    feet in diameter by 8 feet deep. Pesticide contamination was detected, but not quantified, and arsenic contamination
    was detected in one soil boring. In addition, the Arsenic Burial  Area was used for a one-time disposal of 27 drums
    containing the product "arsenic of lead", apparently used for weed control.

    Status (May 1994): Nine areas were identified by the Navy Installation Restoration Program as requiring additional
    investigation, including: Aero Club, Arsenic Burial Area. Brown Field, Former Rifle Range,  Fire Training Area,
    Old Batch Plant, Old Landfill, Pesticide Burial Area, and Recently  Closed Landfill.  Brown Field, however, will
    be remediated under the Virginia Underground Storage Tank Program because the contamination in this area  consists
    entirely of petroleum  related products.   Because no contamination was found at the Arsenic Burial Area, the
     installation has  recommended no  further investigation, but ground water  momtonng will continue for five years.
    The Virginia Department of Environmental Quality will be reviewing  the Closure Plans and Site Monitoring Plan
     for the Recently Closed Landfill.

    [The description of the site (release) is based  on information available at the time the site was scored.  The
    description may change as additional  information is gathered on the sources and extent of contamination.   See 56
     FR 5600, February 11, 1991,  or subsequent FR notices.]
            s*Torrim,« w**r« *rTe listed under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) as amended

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V-/EPA
UNITED STATES
ENVIRONMENTAL PROTECTION
AGENCY
NATIONAL PRIORITIES LIST      NPL
     	OERR Hazardous Site Evaluation Division  Washington. DC 20460	May 1994

                     — -                MATERIALS TECHNOLOGY LABORATORY (USARMY)
                                                                        Watertown, Massachusetts

    Conditions at Proposal (June 23, 1993):  The U.S. Army Materials Technology Laboratory (MTL), commonly
    known as the Watertown Arsenal, occupies 47.5 acres on Arsenal Street in Watertown,  Massachusetts.  MTL is
    located on the north bank of the Charles River and encompasses 36.5 acres approximately 5 miles west of Boston.
    Eleven acres of inactive MTL land situated between North Beacon Street and the Charles River was leased to the
    Commonwealth of Massachusetts in 1920 and currently contains the North Beacon Street Park and the Watertown
    Yacht Club.

    The facility was originally established as the Watertown Arsenal  in 1816.  The facility continued to expand and
    occupied 131 acres and employed 10,000 people at  the end of World War II. The site was used for small arms
    maintenance and-ordnance supplies; ammunition and pyrotechnics production; paint, lubricant, and cartridge testing
    and experimentation; manufacture of guns and cartridges; and development of advanced metallurgical processes used
    in the casting, welding, and machining of artillery pieces.   A research  nuclear reactor was used for molecular and
    atomic structure research activities from 1960 to 1970.  Although the reactor was deactivated in 1970, it is currently
    being decommissioned under the jurisdiction of the Nuclear Regulatory Commission.  In 1968,  approximately 55
    acres were sold to the Town of Watertown.  Of the 47.5 acres retained by the Army, 36.5 acres  became the Army
    Materials and Mechanical Research Center (AMMRC).  In 1985, AMMRC became MTL.  The current mission
    of MTL includes  testing material; developing weapons, ammunition,  and lightweight armor; and manufacturing
    testing technology.

    In October 1988, Congress recommended  the closure of the facility.   The U.S. Army Toxic and Hazardous
    Materials Agency (THAMA) had already initiated the first stage of the closure plan, the preliminary assessment/site
    inspection, which was conducted in 1987.  The Army also conducted a soil, sediment, and ground water sampling
    program in 1988, from which a remedial investigation (RI) report  was produced.  The data obtained from  this
    sampling could not be verified or validated by the Army.  Subsequently, the Army completed a Draft Phase 1
    Remedial Investigation Report in Apnl  1991 and a Phase 2 report in October 1992.

    Sampling dunng these investigations indicated contamination of ground water, soil, surface water, and sediments
    at MTL.  Contaminants detected above background concentrations at the site include volatile  and semi-volatile
    organic compounds, PCBs, pesticides, inorganic elements, and radioactive substances.  PCBs were detected on the
    property on the surface of electrical transformers and in the surrounding soil. Samples collected from onsite storm
    drams  indicate the presence of several  organic compounds and inorganic contaminants related to site activities.
    However, there are other potential sources of contamination from nearby industrial activity.

    The only known drinking water well within 4 miles of the site not separated by the Northern Boundary Fault, is
    a private well 2.5  miles northwest of the property.  Municipal drinking water within 4 miles of the site is supplied
    by surface water  sources located to the west of MTL, and are unaffected by the site.  The Charles River is used
    for recreational boating, swimming, and fishing.

    The active portion of MTL is completely fenced and public access is restricted 24-hours by a guarded gate.  Eight
    people occupy housing located on  the property. Approximately 600 people are currently employed at MTL.

    Status (May 1994):  EPA is considering various alternatives for the site.

    {The description  of the site (release) is based on information available at the time the site was scored.   The
    description may change as additional information  is  gathered on the sources and extent of contamination.  See 56
    FR 5600, February 11, 1991, or subsequent FR notices.]
   Superfund hazardous waste site listed und«r fte Comprehensive Environmental Response. Compensation, and Liability Act (CCRCLA) as amended

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&EPA
UNITED STATES
ENVIRONMENTAL PROTECTION
AGENCY
NATIONAL PRIORITIES LIST       NP1
                      OERR Hazardous Site Evaluation Division Washington, DC 20460                           May 1994

                   • -             MCCORMICK & BAXTER  CREOSOTING CO. (PORTLAND)
                                                                                     Portland, Oregon

    Conditions at  Proposal (June  23,  1993):   The  McConnick & Baxter Creosoting Company  site covers
    approximately 58 acres and is located at 6900 Edgewater Street, approximately 4 miles south of the city of Portland,
    Oregon.  McConnick &. Baxter is situated on the east bank of the Willamette River in an area zoned for heavy
    industrial use.  The site is bordered by railroad tracks on the northeast and northwest, a barge maintenance and
    dredging  facility on  the southeast, and an empty lot where a shipyard and cooperage was  once  located on the
    northwest.  A residential area is located on the northeast side of the site on top of a bluff approximately 120 feet
    high.

    McConnick & Baxter was founded in 1944 to produce treated wood products duhng World War II.  Wood treating
    products used at "the site include creosote/diesel oil mixtures, pentachlorophenol/diesel oil mixtures, and a variety
    of water-  and ammonia-based solutions containing arsenic, chromium,  copper, and zinc.  Between 1945 and 1969,
    waste  water and non-contact cooling water were discharged  directly  into the Willamette River via storm water
    outfalls.  Prior to 1971, boiler water, storm water, and oily wastes were disposed of in  the former waste disposal
    area located in the western portion of the site.  McCormick & Baxter operated an aboveground tank farm at the
    facility consisting of six tanks ranging in size from 70,000 gallons to 173,000 gallons. These tanks held mixtures
    consisting of creosote, pentachlorophenot, oil, and oily-waste water. In addition to the  tank farm,  McCormick &
    Baxter used a 750,000-gallon creosote tank.  McCormick & Baxter filed for Chapter 11 bankruptcy in 1988.  In
    1989,  with certain remedial measures only partially completed, responsibility for the site investigation and cleanup
    was transferred to the Oregon Department of Environmental Quality (ORDEQ).  McConnick & Baxter's lending
    institution took control of their accounts in 1991 and the facility ceased operations.

    During an investigation conducted by ORDEQ in  1990, heavy  metals,  polycyclic aromatic hydrocarbons, and
    pentachlorophenol were detected at elevated levels in soils, sediments, and water at the facility. Soils beneath the
    site are contaminated from the ground surface  to as deep as  80 feet in some areas.  The soil contamination has
    migrated  to sediments in the Willamette River.  Sediments near the site are contaminated to depths of up to 35 feet
    below the sediment surface..

    The Willamette River is used for recreational activities downstream of the McCormick & Baxter site. ORDEQ and
    the Oregon Department of Fish and Wildlife have posted warning signs to alert people  of the potential long-term
    hazards associated with the site.  The site  is also fenced to  restrict public  access.   EPA  and ORDEQ are also
    investigating various cleanup alternatives appropriate for the site.

    Status (May  1994):  ORDEQ is currently performing interim cleanup measures at the site, including pumping
    creosote  from 20 extraction wells; removing sludges  from storage tanks; demolishing storage tanks, retorts, and
    process equipment; removing chemical sludges from surface soils; managing storm water runoff; and  installing
    interceptor trenches near the Willamette River.

    [The description of the site (release) is based on  information available at the time the site was scored.  The
    description may change as additional information is gathered on the sources and extent  of contamination.  See 56
    FR 5600. February 11, 1991,  or subsequent FR notices./
    Superfund hazardous waste site fisted under me Comprehensive Environmental Response. Compensation, and Liability Act (CERCLA) as amended

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vvEPA
UNITED STATES
ENVIRONMENTAL PROTECTION
AGENCY      	
NATIONAL PRIORITIES LIST      NPL
     	OERR Hazardous Site Evaluation Division Washington. DC 20460	May 1994

                     —  NATICK LABORATORY ARMY RESEARCH,  DEVELOPMENT, AND
                                                                             ENGINEERING CENTER
                                                                             Natick, Massachusetts

    Conditions at Proposal (May 10,  1993):  The U.S. Army Research,  Development and Engineering Center,
    commonly known as the Natick Laboratory,  is  located on  Kansas  Street in  Natick,  Middlesex County,
    Massachusetts. The Natick Laboratory occupies a peninsula on the eastern shore of Lake Cochituate and is bordered
    to the north by a residential zone.  The Natick Laboratory facility is located on 74 acres that was purchased by the
    Army in 1949 from  the Metropolitan District Commission.   The property was  primarily used as a forested
    recreational area  but  also included a gravel pit in  the section known as the Building T-25 Area.   The Army
    completed the construction of the Natick Laboratory in 1954; since then, several industrial, laboratory, and storage
    activities have taken place on the grounds for research and development in food science, aero-mechanical, clothing,
    material, and equipment engineenng.

    In its operations,  the Army used various substances including tetrachloroethene, trichloroethene, carbon disulfide,
    benzene, chloroform,  tetraethyllead, acetone and other volatile organic compounds (VOCs), "standard laboratory
    chemicals," mineral spints/turpentme, paints,  inks, lubricants,  gasoline, several pesticides, and metal dusts.

    Two sources of hazardous substances have been identified onsite.   The Building  T-25 Area was  identified as
    potentially contaminated around 1989, when personnel at the facility noticed a sheen on the runoff water generated
    during rain storms.  In 1989, construction work was halted in the Gymnasium Area when construction workers
    noticed a benzene-like odor in soil from a bonng that was drilled.

    In 1989, the Army conducted soil gas surveys in the Building T-25 and Gymnasium Areas and detected several
    VOCs.  Soil,  ground  water, and surface water samples contained elevated concentrations of 1,2-dichloroethene,
    benzene, carbon  disulfide, bis  (2-ethylhexyl) phthalate,  chlorobenzene,  ethylbenzene,  xylenes,  Freon 113,
    naphthalene and 1,2,4-tnchlorobenzene.

    Other potential sources of chlorinated organic compounds have been identified near Natick Laboratory. Petroleum,
    organic compounds, and chlorinated solvents have been released into soil and ground water at a property previously
    occupied by a laundromat, approximately 3,600 feet southeast of the laboratory well field across Lake Cochituate.
    An  "old laundromat"  is also reported to exist approximately 2,670 feet east-southeast of the Springvale well field.
    Certain establishments located on Routes 9, 27,  and 30, and  some automotive garages in the area  may also be
    sources of VOC contamination in the ground water near the Evergreen and Springvale municipal well fields.

    Approximately 37,000 people obtain drinking water  from wells within 4 miles of the facility.

    Status (May 1994):  EPA is considering various alternatives for the site.

    (The description  of the site (release)  is based on information available at the lime the sue  was scored.  The
    description may change as additional information is gathered on  the sources and extent of contamination. See 56
    FR  5600, February 11, 1991, or subsequent FR  notices.)
    Supertund hazardous wait* site kited under the Comprehensive Environmental Response, Compensation, and Uabiity Act (CERCLA) as amended

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 tft r"OA        UNITED STATES
JV|_ §  j\       ENVIRONMENTAL PROTECTION
^^ •"•  •  m       A«CMr.V
                  AGENCY
                  OERR Hazardous Site Evaluation Division Washington. DC 20460
                                                             NATIONAL PRIORITIES LIST       NPf
                 _.                              NATIONAL  SOUTHWIRE ALUMINUM  CO.
                                                                            Hawesville, Kentucky

Conditions at Proposal (July 29, 1991):  National Southwire Aluminum (NSA) Co.,  a division of Southwire of
Carrollton, Georgia,  began aluminum reduction operations in  1969 on a 1,100-acre  site at the intersection of
Kentucky Highways 271 and 334 in a rural section of Hancock County near Hawesville, Kentucky.  Two clay-lined
ponds, each covering 5 to 7 acres, were constructed for disposal of spent pot linings from the aluminum reduction
process (North Pond) and calcium fluoride slurry from the air  quality control system  (North and South Ponds).
NSA closed the North Pond and covered it with a synthetic cap  and a layer of soil after the Kentucky Division of
Waste Management conducted a preliminary assessment in 1986.  Currently, the pond  is densely vegetated.  The
South Pond has been filled to capacity, and its use  ceased in  1989.  A third, synthetically-lined pond, designated
as the New Pond, is now used for disposal of the calcium fluoride slurry.
              _-».
In 1979, NSA determined that leaching was occurring  beneath the North Pond. Cyanide, which is produced in the
aluminum reduction process and which is present in the potliners,  and fluoride were found in ground water in the
area of the disposal ponds.  In 1985, NSA found cyanide in one of its three production wells.  At that time, the
wells were providing drinking water to more than 1,000 employees;  the wells were  subsequently taken out of
service.   Other wells that draw  from the Ohio River alluvial aquifer  within 4 miles of NSA currently serve
approximately 16,000 people.

In November 1989, EPA detected significant concentrations of cyanide in on-site ground water and sediments in
the plant's effluent ditch, which flows along the west border of the plant, alongside the disposal ponds, and into the
Ohio River.

NSA currently operates under a permit under the National Pollutant Discharge Elimination System.  Since 1987,
EPA has cited NSA twice for exceeding permit limits:  in August 1987  for exceeding  total residual chlorine and
in November 1990 for exceeding total recoverable zinc in storm water.

Status (May 1994): Prior to beginning the remedial investigation/feasibility study (RI/FS), NSA and EPA installed
numerous wells at the site and generated sufficient data to evaluate the need for an onsite ground water pump and
treat system.   A review of this data indicated that the  system was warranted and would assist EPA in selection of
the final site remedy.  NSA signed two agreements with EPA to perform the RI/FS and to implement the pump and
treat system.  The Record of Decision for this system was signed on February 19, 1993 and the system is expected
to be in operation at the end of 1994.

Before starting the RI/FS, which is currently underway, NSA identified additional areas of contamination while
constructing a cooling tower foundation. PCBs were identified in the excavation and at numerous adjacent locations
up to levels of approximately 10,000 parts per million.  These areas of contamination along with areas  of previously
known contamination are being further investigated as part of the RI/FS, which is  expected to be completed in early
 1995.

[The description of the site (release) is based on information available at the time the site  was scored.   The
description may change as additional information is gathered on the sources and extent of contamination.  See 56
FR 5600, February 11, 1991, or subsequent FR notices.]
                                                                                                      €
Supertund hazardous waste site lutad under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) as amended   -.  .

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vvEPA
UNITED STATES
ENVIRONMENTAL PROTECTION
AGENCY
NATIONAL PRIORITIES LIST       NPL
     	  OERR Hazardous Site Evaluation Division Washington. DC 20460	May 1994

                     _..         NAVAL COMPUTER AND TELECOMMUNICATIONS AREA
                                                           MASTER STATION EASTERN PACIFIC
                                                                                         Oahu, Hawaii

    Conditions at Proposal (January 18, 1994):  The Naval Computer and Telecommunications Area Master Station
    Eastern Pacific (NCTAMS EASTPAC) site is used for operating and maintaining facilities and equipment for the
    Navy's Defense Communications System.  The NCTAMS EASTPAC site consists of facilities located throughout
    the Island of Oahu.  These include facilities at Wahiawa, Lualualei, Opana,  Kokekole Pass, Pearl Harbor, and
    various satellite telecommunication locations.  The Navy's Initial Assessment  Study (IAS) identified 14 potential
    hazardous waste sources at NCTAMS EASTPAC, all located at either Lualualei or Wahiawa.  The Lualualei and
    Wahiawa facilities are  approximately 10 miles apart.

    The Lualualei facility occupies 1,700 acres in a large coastal valley on the southeastern shore of Oahu. The facility
    is surrounded by agricultural, urban, and conservation land areas.  Eight potential hazardous waste sources were
    identified at the Lualualei facility during the IAS.  The sources include the Old Coral Pit, Antenna 403 Disposal
    Area,  Antenna 441  Disposal Area, Building  65 Disposal Area,  Antenna 354 Disposal Area,  Two Wells near
    Building I, Old NRTF Landfill, and Transformer Locations. All subsequent investigations evaluated the Antenna
    354 Disposal Area and Transformer Locations only.  Ground water in the area is brackish, and there are no drinking
    water wells downgradient of the facility. Surface water downstream of the site is not used for drinking water.

    The Wahiawa facility occupies 700 acres on the central plateau of Oahu.  The  northern and eastern borders of the
    facility lie adjacent to the Ewa Forest Reserve and other conservation land.  Adjacent to the southern border of the
    facility are pineapple fields and conservation land.  The town of Whitmore Village borders the facility to the west
    and the City of Wahiawa lies approximately 1 mile to the southwest.

    Polychlorinated biphenyls (PCBs) have been detected in soil surrounding electrical transformers within 200 feet of
    onbase residences at the Wahiawa facility.  Approximately 248 people live in  these residences.   From  1942 until
    1977, a 6-ounce sample of fluid from each transformer was  tested quarterly to evaluate insulating properties and
    was then disposed of on the ground.  In June 1988 and March and December 1990, soil sampling conducted around
    the transformers indicated the presence of PCBs. In July 1990, the Navy set a cleanup goal of 10 ppm in excavating
    PCB-contatrunated soil.  Soil removal activities began in  November 1990 and  were completed in February 1991.

    In addition, an inactive landfill (Old Wahiawa Landfill) was used for general disposal of all wastes generated at the
    site from the  1940s until 1973.  Although the majority of the wastes were municipal solid wastes, other materials
    were disposed of, including waste  lube oils,  chlorinated and nonchlonnated solvents, transformer oil, hydraulic
    fluid, paint thinners, tnchloroethane, creosote,  and  mercury.

    The southern edge of the Wahiawa facility drains into the North Fork Kaukonahua Stream, which flows into the
    Wahiawa  Reservoir.  This joins the Kaukonahua Stream which flows westward,  converging with the Poamoho
    Stream. Most of the facility, however, drains north into the Poamoho Stream which converges with the Kaukonahua
    Stream approximately 7 miles west of the site, at the Kukii Stream.  The Kiikii Stream flows for approximately  1
    mile before emptying into  Kaiaka Bay and the Pacific Ocean.   Surface  water  within 15  miles downstream of the
    Wahiawa  facility  is not used as  a source of drinking  water.  The Wahiawa Public  Fishing Area  is  located
    approximately 0.5 southwest of the facility on the North Fork Kaukonahua Stream.  Additional fisheries  located
    within 15  miles downstream of the facility include Kaiaka Bay, the Pacific Ocean, and the area at the confluence
    of Poamoho and Kaukonahua Streams.  There are six Federally-designated endangered/threatened species of birds
    and five  Federally-designated/threatened species of turtles associated with surface water within  15  miles of the
    Wahiawa  facility.

    Status (May 1994): EPA is considering various alternatives for the site.

    [The description of the site (release) is based  on  information available at the time  the site was scored.  The
    description may change as additional information is gathered on the sources and extent of contamination.  See 56
    Superfund hazardous waste site Hand under tfi« Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) as amended

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UNITED STATES
ENVIRONMENTAL PROTECTION
AGENCY
                                                             NATIONAL PRIORITIES LIST       NPL
                  OERR Hazardous Site Evaluation Division  Washington. DC 20460	Mav 1994
                . _                      NAVAL WEAPONS INDUSTRIAL RESERVE PLANT
                                                                        Bedford,  Massachusetts

Conditions at Proposal (June 23, 1993):  The Naval Weapons Industrial Reserve Plant (NWIRP) is located on
Hartwell Road in Bedford, Middlesex County, Massachusetts.  The 46-acre facility is part of a larger industrial
complex located immediately north of Hanscom Air Force Base.  NWIRP and Raytheon Missile Systems Division
(RMSD), which is also located within the industrial complex, are operated by Raytheon Co.

NWIRP was created in 1952 and operations continue at the facility today.  NWIRP is used for advanced technology
research in weapons systems development; primarily, the design, fabrication, and testing of prototype equipment
such as missile guidance and control systems. The Components Laboratory, located on Hartwell's Hill on the north
side of Hartwell Road, and the Flight Test  Facility, on the lower,  south side of Hartwell Road, are the  primary
operating areas at NWIRP.  Approximately 21 other buildings house various support activities related to the work
at these two centers.

The Navy has conducted several investigations of the NWIRP facility.  An Initial Assessment Study (IAS) was
completed by the Department of Defense in April 1986.  The IAS identified potential sources and areas of concern
at the NWIRP facility. In 1990, the Navy completed the first phase of a remedial investigation (RI) that further
evaluated the potential sources of contamination at NWIRP.

NWIRP has generated or stored wastes at numerous locations throughout its operational history. Hazardous waste
disposal was accomplished either through direct discharge to the septic system or through barrel storage and offsite
disposal.  The septic system consisted of onsite leaching fields until 1980, when municipal sewer lines were
constructed.  Wastes generated at the NWIRP include trichlorethylene,  1,1,1-trichloroethane,  methyl ethyl ketone,
acetone, toluene, xylene, photographic fixer, waste oil and coolants, lacquer thinner, unspecified solvents and
thinners, Stoddard solvent, waste paint, and chromic, sulfuric, nitric, hydrochloric and phosphoric acids.

The Hartwell Road Well Field,  part of the municipal water supply for the Town of Bedford, is located less than
0.5 miles northwest of NWIRP. The three wells in this field were closed in 1984 after volatile organic compound
contamination was traced to two of the wells.  A 1991 RI report prepared by the Town of Bedford concluded that
NWIRP was a likely source of the well field contamination.  Hanscom AFB is also a  potential contributor to the
ground water contamination in this area.

Approximately 11,000 people rely on drinking water wells within 4 miles of NWIRP.  In addition, approximately
 12,800 people receive water from an intake on the Shawsheen River, 7 miles downstream of NWIRP.  There are
extensive wetlands and several  species of rare plants and wildlife along  Elm Brook  and the Shawsheen  River
downstream of the NWIRP.

 Status  (May 1994): EPA is considering various alternatives for the site.

 {The description  of the site (release) is based  on information available at the time the site was scored.  The
 description may change as additional information is gathered on the sources and extern of contamination.  See 56
 FR 5600, February 11. 1991, or subsequent FR notices.)
Supertund hazardous waste site listed under ttie Comprehensive Environmental Response. Compensation, and Liability Act (CERCUA) as amended

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&EPA
UNITED STATES
ENVIRONMENTAL PROTECTION
AGENCY         	
NATIONAL PRIORITIES LIST       NPL
     	OERR Hazardous SJte Evaluation Division  Washington. DC 20460	May 1994

                     _                                  NAVY SHIPS PARTS CONTROL CENTER
                                                                      Mechanicsburg, Pennsylvania

    Conditions at Proposal (January 18, 1994): The Navy Ships Parts Control Center (NSPCC) occupies 824 acres
    in Mechanicsburg, Cumberland County, Pennsylvania, approximately 7 miles west of Harrisburg. In operation since
    the 1940s, NSPCC initially provided global management of Navy ship repair parts.  Subsequently, NSPCC has
    undertaken  additional inventory  management  responsibilities,  which  have included managing conventional
    ammunition, providing services, and providing maintenance and engineering for the installation. In the early 1950s,
    NSPCC also became a repository for a variety of imported metal ores.  Environmental investigations conducted by
    the Navy initially identified several potential areas of contamination at NSPCC.  In 1989, the Navy  performed
    additional investigations, which included an evaluation of the following five areas of contamination.

    Carter Road Landfill was operated from 1950-1962.  The 4.5-acre area was used for disposal of construction rubble,
    medical  supplies, and gas mask canisters.

    The l-acre Building 904 Landfill was used during the 1950s to dispose construction debris and medical supplies.'

    Ball Road Landfill and Burn Pits is a 7.5-acre area operated from the mid-1940s until 1977.  Originally, it was a
    quarry in which two large pits were excavated.  Wastes, including paints, varnvshes, gasoline, oils, medical supplies,
    paint and solvent containers, asbestos ash, and Stoddard solvent contaminated with PCB,  were doused with gasoline
    and burned  on a weekly basis.

    Golf Course Landfill was a 4-acre area used during 1945-46.  Wastes deposited include medical supplies, gas mask
    canisters, and all shop wastes-potable alcohol and waste oil, antifreeze, paints, varnishes, and transmission fluids.
    Occasionally, wastes were burned in the excavated areas.  The area is now used as a golf course.

    During the 1950s, hazardous wastes were poured directly onto railroad tracks between Buildings 403/404. Among
    the materials found in the Buildings 403/404 Solvent Disposal Area were PCB-contaminated oils, Stoddard solvent,
    and tnchloroethene used  to degrease machinery.  From 7,000 to 13,000 gallons of contaminants may have been
    deposited annually.

    Navy  studies identified numerous hazardous substances in soil at two of the five areas and in ground water at all
    five areas.  Among the substances were arsenic, heavy metals (including mercury,  manganese, lead, and cadmium),
    pesticides (including DDT, DDE, DDD, and chlordane), and polyaromatic hydrocarbons (including  benzo (a)
    pyrene,  anthracene, chrysene, and  pyrene).  An estimated 9,000 people obtain drinking water from public and
    pnvate wells within 4 miles of the five sources of hazardous substances at NSPCC; the nearest well is at 0.17 mile.

    Status (May 1994):  Based on data from the site inspection (SI), which was included in the SI report dated October
    1990, the Navy recommended that no further action be taken at the Building 904 Landfill. In late 1991,  the Navy
    performed an extended SI (ESI) at the Golf Course Landfill and a phase I remedial investigation (RI) at the Carter
    Road  'Landfill, Ball Road Landfill and Burn Pits,  and Buildings 403/404 Solvent  Disposal Area.  Based on the
    findings of these studies, the  Navy recommended that no further action be  taken at the Building 403/404 Solvent
    Disposal Area and the Golf Course Landfill.

    The Navy is performing a phase II RI at Carter Road Landfill (baseline risk assessment) and the Ball Road Landfill
    and Bum Pits (geophysical investigations).  Results from these investigations are expected in the summer of 1994.
    An interim  remedial action will also be performed  later in 1994 to address  volatile organic compounds present in
    soils at the  Burn  Pits, which  represent a continuing source of contamination to ground water.  The Navy is also
    performing  environmental investigations at other sites of potential concern identified within NSPCC.  The Navy and
    EPA have begun discussions for negotiation of a Federal Facility Agreement.

    (The description  of the site (release)  is based on  information available at the time the site was scored.  The
    description may change as additional information is gathered on the sources and extent of contamination.  See 56
    FR 5600. February II.  1991, or subsequent FR notices.J
    Supertund hazardous wtote site listed under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) as amended

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v>EPA
UNITED STATES
ENVIRONMENTAL PROTECTION
AGENCY        	
NATIONAL PRIORITIES LIST
     	   OERR Hazardous Site Evaluation Division Washington. DC 20460	    May 1994

                     _..                                             NORTH SANITARY LANDFILL
                                                                                          Dayton,  Ohio

    Conditions at Proposal (June 23, 1993):  The North Sanitary Landfill, Inc. (NSL) site is located at 200 Valleycrest
    Drive in Dayton, Montgomery County, Ohio.  The site occupies 101.9 acres, approximately 45.7 of which were
    used as a landfill. Several industrial facilities, including bulk oil storage terminals, an industrial laundry facility,
    car crushing facility, a former industrial plating facility, and a demolition debris landfill are located adjacent to the
    NSL property.

    The NSL site, also known as the Valleycrest Landfill, was owned by the Keystone Company, Inc., which operated
    a sand and gravel mining operation from  the 1940s until the 1970s. Between 1966 and 1975, landfill operations
    at the site were conducted by B.G. Davis Co., Inc., under the name of NSL, Inc.  Waste Management, Inc. of
    North America purchased the B.G. Davis Co. in  1983.

    Industrial and municipal wastes from the Dayton area were used at NSL to fill unlined gravel pits that were created
    by former mining operations. These pits contained water  that may have entered the sand and  gravel aquifer that
    the pits intersect.  The following wastes were deposited at the NSL site:  electrical transformers, burned foundry
    sand, demolition debris, slag, baghouse dusts, plaster, rubber tires, lampblack, grindings from brake shoes (possibly
    containing  asbestos),  waste from a local sewer cleaning  company, and  drums of chemicals.   Lead,  mercury,
    cyanide, and PCBs were detected in wastes disposed of at the site. While operating the landfill, NSL was cited for
    repeated violations such as inadequately covering wastes, accepting hazardous wastes for which it was not permitted,
    and accepting burnable wastes (numerous onsite fires have occurred).  These citations were  issued by State and local
    health departments.

    According  to the Miami  Conservancy  Regional Planning  Commission  District and the Ohio Environmental
    Protection Agency, thousands of drums were buried onsite. Drums filled with used oil and liquid chemicals were
    emptied djrectly onto the ground or into the unlined gravel pits.  Many of the drums contained waste paint or other
    volatile organic wastes.  In March 1985, leachate was observed flowing down hillsides and  forming ponds in low
    areas onsite.

    A series of EPA inspections began at the NSL site in February 1986.  These inspections included a geophysical
    survey of the eastern portion of the site and the installation of 21 monitoring wells in the sand and gravel aquifer
    beneath the landfill.  This aquifer provides drinking water to 487,000 people.  Chemical analysis of ground water
    samples and subsurface soil samples collected by EPA in June 1991, revealed elevated levels  of volatile organic
    compounds, heavy metals, and PCBs. Several residential drinking water wells in  the area are  contaminated with
    various organic compounds.  Affected residents have been connected to the Dayton municipal water supply.

    Status (May 1994):  EPA is considering  various alternatives for the site.

    [The description of the sire (release) is based on  information available at the time the site  was scored.  The
    description may change as additional information is gathered on the sources and extent of contamination.  See 56
    FR 5600,  February 11, 1991, or subsequent FR notices.]
    Supertund hazardous waste site lined under tfie Comprehensive Environmental Response. Compensation, and Liability Act (CERCLA) as amended

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xvEPA
UNITED STATES
ENVIRONMENTAL PROTECTION
AGENCY
NATIONAL PRIORITIES LIST       NPL
     	OERR Hazardous Site Evaluation Division  Washington. DC 20460         	 May 1994

                   • —   OLD NAVY  DUMP/MANCHESTER LABORATORY (USEPA/NOAA)
                                                                                 Kitsap County, WA

    Conditions at Proposal (January 18,  1994): Manchester Laboratory is located along the western shore of Clam
    Bay, which is an embayment off the west side of Rich Passage in Puget Sound. The site is approximately 11/4
    miles north of Manchester, Washington.  Federal ownership of this site started with the U.S. Army in 1898.  In
    1924, the entire area was transferred to the U.S. Navy.  Between 1941 and 1944, a submarine net depot and an
    open storage area were established on what is now EPA's property.  In the early 1970s, EPA and NOAA acquired
    a portion of the former Navy property.

    Available records are somewhat unclear, but it appears that the Navy started disposing of scrap metal from onsite
    submarine net construction in the dump site in the 1950s.  By 1957, a dike was constructed across a shoreline area
    on the west side o^f Clam Bay.  Scrap  metal from nearby submarine net construction and the Navy's  Bremerton
    Shipyard were reportedly placed in the dump site.  The entire  contents of the dump site,  however,  are
    undocumented.  A bum pit was also constructed in the 1950s on the east side of the dump site and appears to have
    been used into the early 1960s.  Materials allegedly burned in the pit include wastes from an onsite dispensary and
    waste paper products.  PCB contaminated oil in underground storage tanks may have been dumped and subsequently
    burned in fire fighting activities.

    As the current owner of part of the former Navy property,  EPA has conducted the Preliminary Assessment and
    Site  Inspections required under section 120 of CERCLA, as amended,  which established the Federal Facility
    Hazardous Waste Compliance Docket.  The most recent inspection, conducted by EPA in May, 1992, documented
    heavy metals, mercury, asbestos,  and PCBs in the old navy dump. Runoff water from the dump contains copper
    and zinc in excess of Ambient Water Quality Criteria established under the Clean Water Act. Offshore sediments
    contain elevated levels of metals,  mercury, and PCBs.  NOAA has also completed a Preliminary Assessment for
    their portion of the former Navy property.

    Clam Bay is used primarily for recreational shellfishing and is also known to be used by the bald eagle, a Federally
    threatened species designated under the Endangered Species Act.

    Status (May 1994): EPA and the State  will negotiate with the U.S. Army Corps of Engineers to perform any
    cleanup necessary at the site under the  Formerly Used Defense Sites (FUDS) program, which was established to
    cleanup sites previously owned by the  Department of Defense.  Current information indicates that former Naval
    activities are solely responsible for the contamination at the site.

    [The description of the site (release) is  based on information available at the time the site was scored.  The
    description may change as additional information is gathered on the sources and extent of contamination. See 56
    FR 5600, February  11, 1991, or subsequent FR notices.]
    Soperfund hazardous wast* sit* listed under tfi« Comprehensive Environmental Raspons*. Compeniafion. and Liability Act (CERCLA) as amended

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                   UNITED STATES
 _ OERR Hazardous Site Evaluation Division  Washington. DC 20460 __ May 1994

                 __                                               PACIFIC SOUND RESOURCES
                                                                               Seattle, Washington

Conditions at Proposal (May 10, 1993): The West Seattle wood treating plant of Pacific Sound Resources (PSR)
is located at 2801 Southwest Florida Street in Seattle, King County, Washington.  The 20-acre property is in an
industrial area on the shore of Elliott Bay and Puget Sound, near the Duwamish River.  Wood treating operations
at the plant date to 1906. PSR has owned and operated the facility since 1964.  Another tum-of-the-century wood
treating facility owned and operated by PSR (formerly the Wyckoff Co.) since 1964 was placed on the NPL in 1987
as part of the Wyckoff Co. -Eagle Harbor site.

Operations at the two facilities have been similar. The primary wood preservatives used at both sites were creosote,
which consists primarily of polyaromatic hydrocarbons (PAHs) and pentachlorophenol (PCP). Each was mixed with
fuel oil.  In addition, at the West Seattle site, substantial quantities of chemonite, which contains copper, arsenic,
and zinc, were also used.

Wood treatment operations at the  West Seattle plant have contaminated  soil, ground water,  and Puget Sound'
sediments with creosote, PCP, fuel oil. and chemonite metals.  A significant source of contamination was a "transfer
table," where  retorts were loaded and unloaded.  The transfer table was located  in a shallow unlined earthen pit
known as the "transfer table pit."  Numerous investigations of the pit,  including one by  EPA in  1989, have
documented contamination with arsenic, chromium, copper,  zinc,  and PAHs. In August/September 1990, PSR
excavated approximately 450 cubic  yards of soils and sludge from the pit, placed them in a containment box on the
northeast end of the site, and covered the pit with a 3 -inch layer of concrete over wire mesh.

Another source of hazardous substances at the site is an area adjacent to Elliott Bay where three aboveground tanks
were  formerly used to store creosote.  A major leak occurred at one of the tanks in 1970.  In addition, numerous
spills occurred over the years from pipelines leading to the tanks.

Heavy metals  and PAHs were found in Elliott Bay  by the Washington Department of Ecology and EPA in 1988.
Hazardous  substances from the site can flow overland from  the site to Elliott Bay through  storm drains,  direct
surface runoff, flooding, and accidental spills or drips.  The bay  is a fishery,  a critical migratory corridor  for
anadromous fish, and a subarea identified in the Comprehensive' Conservation and Management Plan for the Puget
Sound National Estuary.

In July /August 1991, EPA found heavy metals and PAHs in onsite soil and air downwind of the site. An estimated
 150 people live within 0.25 mile of the site, and 175,000 within 4  miles.

Since  1984,  EPA has  issued several  administrative orders against  Wyckoff under CERCLA,  the Resource
Conservation and Recovery Act (RCRA), and the Clean Water Act  (CWA) requiring investigation and cleanup at
the site.

 In 1985, Wyckoff and officials no  longer associated with PSR, pleaded guilty to violations of RCRA for  storing
 hazardous waste at the West Seattle plant without a RCRA permit and violations of CWA for discharging wood
 preserving residues into the West Waterway of the  Duwamish River.

 Status (May  1994):  The  plant  is  currently operational.  The  Port of Seattle has expressed an interest in
 redevelopment/cleanup  of the property as part  of the larger South West Harbor project, which would expand
 container terminals.

 [The description of  the site (release) is based on  information available  at the  time the site was scored.   The
 description may change as additional information is gathered on the sources and extent of contamination.  See 56
 FR 5600. February 11, 1991, or subsequent FR notices.]
Superfund hazardous waste site listed under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) as amended

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UNITED STATES
ENVIRONMENTAL PROTECTION
AGENCY
                                                              NATIONAL PRIORITIES LIST       NPL
 	OERR Hazardous Site Evaluation Division  Washington. DC 20460	May 1994

                 —                    PADUCAH GASEOUS DIFFUSION PLANT (USDOE)
                                                                               Paducah, Kentucky

Conditions at Proposal (May 10, 1993): The Paducah Gaseous Diffusion Plant (PGDP) is a uranium enrichment
facility covering approximately 1,350 acres in western McCracken County, approximately 10 miles west of Paducah,
Kentucky, and about 3 miles south of the Ohio River.  PGDP began operating in 1952 and is owned and operated
by the U.S. Department of Energy (USDOE).   The  facility is currently managed  by Martin Marietta Energy
Systems, Inc.

Approximately 740 acres  of the plant are located  within a fenced security area.  An uninhabited buffer zone
surrounds the fenced area.  Beyond the USDOE-owned buffer zone is an extensive wildlife management area of
2,100 acres deeded or leased to the  Commonwealth of Kentucky.

PGDP performs the first step in the uranium enrichment process, enriching uranium-235 (U-235) in a physical
separation process. The separation process is based on the faster  rate at which U-235 diffuses through a barrier,
in comparison with the heavier uranium-238 (U-238).  Subsequent to processing at PGDP, the uranium is further
enriched at another  USDOE gaseous  diffusion plant.  Extensive support facilities are required to maintain the
diffusion process,  including a steam plant, four major electrical switchyards, four sets of cooling towers, a building
for chemical cleaning and decontamination, a water treatment plant, maintenance facilities, and laboratory facilities.

Plant operations have generated hazardous, nonhazardous, and radioactive wastes, including PCBs, tnchloroethene
(TCE), uranium (multiple isotopes), and technetium-99 (Tc-99). In August 1988, USDOE found Tc-99 in an offsite
drinking water well north of PGDP.  TCE has also been detected in nearby private wells and onsite monitoring
wells.  Approximately 1,400 people obtain drinking water from public and private wells within 4 miles of PGDP.

USDOE has detected PCBs in onsite surface water and downstream of the plant in Big Bayou  Creek and in Little
Bayou Creek.  These creeks are part of the West Kentucky  Wildlife Management Area located adjacent to the
facility.  Big Bayou Creek is currently  used for fishing.  In 1989, the State of Kentucky's Division of Water warned
against consumption of fish caught from Little Bayou Creek.

Status (May 1994):  Two Records of Decision (ROD) have been signed for remedial activities under CERCLA.
On July 22, 1993, EPA signed a ROD for an interim remedial action of the  most contaminated portion of the
northwest plume.  The northwest plume is mainly composed of dissolved TCE and Tc-99.  On March 25.  1994.
remedial action was initiated in accordance with the ROD.  The actions included delineating sites for construction
activities, awarding a purchase order for  seven water treatment  skids,  and issuing a  Notice  of  Award tor
construction of ground water extraction wells.

On March 28,  1994, EPA signed a  ROD for an interim action source control at the North-South Diversion Ditch
(NSDD).   The primary objective of  this action is to initiate control  (treatment) of the source of continued
radionuclide releases into the NSDD. It will also mitigate the spread of contamination from sediment in the NSDD.

Negotiations continue between  EPA, DOE, and  the  Kentucky Department  of  Environmental  Protection for
completing a Federal Facility Agreement.

Alternative  water supplies (public  water lines)  have  been provided to residents in the  path  of ground  water
contamination related to the releases from the plant.  Residents have been offered the opportunity to change  from
the use  of ground water to public water.

[The description of the site  (release)  is based  on  information available at the time the  site was scored.   The
description may change as additional information is gathered on the sources and extent of contamination.  See 56
FR 5600, February  II, 1991, or subsequent FR notices./
 Suparfund hazardous waste sit* Nstad undar th« Compranensiva Environmental Rasponsa, Companaation, and Liability Acs (CERCLA) as amended

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UNITED STATES
ENVIRONMENTAL PROTECTION
AGENCY
                                                              NATIONAL PRIORITIES LIST       NP
 	OERR Hazardous Site Evaluation Division  Washington. DC 2046Q	May 1994


                ' ~~                                                   PANTEX PLANT (USDOE)
                                                                                 Pantex Village, TX

Conditions  at  Proposal (July 29, 1991):  The Pantex Plant is in  Pantex  Village, Carson County, Texas,
approximately 17 miles northeast of Amarillo.  The area is primarily agricultural.  The plant is owned by the U.S.
Department of Energy (USDOE) and operated under contract by Mason and Hangar-Siles Mason Co.  The plant
itself covers 9,100 acres.  In addition,  there is a buffer zone consisting of a 1,077-acre portion of Pantex Lake
owned by USDOE and 3,170 acres of land leased by USDOE from Texas Technological University.

The  plant began in 1942 as an Army  Ordnance Corps  facility.  Nuclear operations began in 1950.  Current
operations — which include fabrication of nuclear weapon ammunition and assembly, testing, and disassembly of
nuclear weapons^— involve 141 solid waste management units.  Past and present waste practices include burning
of chemical wastes in unlined pits, burial of wastes in unlined landfills, and discharging of plant waste waters into
on-site surface waters. More than 150 potential contamination sources have resulted from these practices, of which
15 are being evaluated initially.

In 1988, a USDOE contractor detected acetone, toluene, tetrahydrofuran, trichloroethylene(TCE), bromoform, 1,2-
dichloroethane,  arsenic, barium, chromium, lead, mercury, and silver in waste waters discharged to unlined ditches
and  surface  impoundments on the site.  USDOE also detected acetone, TCE, tetrahydrofuran, toluene,  1,2-
dichloroethane,  2-butanone, tetrachloroethylene, and  1.1,1-trichloroethane in soil underlying  a chemical bum pit
used for evaporation and percolation of solvents contaminated with high explosives, and uranium in soil underlying
firing grounds FS-4, FS-5, and FS-10.

Toluene is present at 329 feet below the  surface in soils underlying the pit. The Ogallala Aquifer occurs  at a depth
of 390 to 420 feet beneath the site.  A zone of low permeability occurs beneath the site at a depth of 350 feet; the
thickness varies from 25 to 100 feet. Contamination is documented in this zone.  The aquifer serves as the primary
source of domestic and  municipal water supply.  Amarillo has a blended system that provides  water to 160,000
customers, approximately 36% of them  from a well field  within 4 miles of Pantex;  20 domestic wells have been
identified within I  mile.  Pumping  by the city has created a cone of depression, causing ground water underlying
Pantex to flow toward the municipal well field.

Surface water  run-off from  the  facility is directed into on-site playas.   While some  are used as surface
impoundments,  others not receiving plant waste water are considered fresh water wetlands. Texas  Tech Agricultural
Research Station uses surface water from Playa 4 for both irrigation of crops and watering of livestock.

Under the Comprehensive Environmental Assessment and Response Program, USDOE has begun characterizing
and cleaning up the most severe environmental problems and has developed an Environmental Restoration and Waste
Management 5-Year Plan.

Status (May 1994):  Pantex is conducting corrective  action investigative work under their Resource Conservation
and  Recovery Act (RCRA) permit that was issued in  Apnl 1991.  In addition, a citizen's advisory board is in the
process of being finalized.  The advisory board is expected to be established by May 1994.

[The description of the site (release) is based on information  available at the time the site was scored.   The
description may change as additional information is gathered on the sources and extent of contamination.  See 56
FR 5600, February II,  1991 or subsequent FR notices.]
Superfund hazardous waste site listed under me Comprehensive Environmental Response, Compensation, and Liability Act (CCRCLA) as amended

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v>EPA
UNITED STATES
ENVIRONMENTAL PROTECTION
AGENCY
NATIONAL PRIORITIES LIST       NPL
     	   OERR Hazardous Site Evaluation Division  Washington. DC 20460	.	|day  1994
                                                         PATUXENT RIVER NAVAL AIR STATION
                     —                                               St.  Mary's County, Maryland

    Conditions at Proposal (January 18, 1994): Patuxent River Naval Air Station is a 6,400-acre facility on a broad
    headland peninsula known as Cedar Point. The peninsula is located at the confluence of the Patuxent River and the
    Chesapeake Bay in St. Mary's County, Maryland. Much of the peninsula is covered with woods or wetlands. The
    majority of the station's operations are concentrated on the western portion of the property.

    Numerous potential sources of contamination to surface water have been identified on the facility. The three sources
    evaluated under the HRS model include the Fishing Point Landfill, the Former and Current Sanitary Landfills, and
    the Pesticide Control  Shop Rinse Area.

    The Fishing Point Landfill is a 25-acre area that was used from 1960 to 1974 as the main disposal site for solid and
    hazardous waste"" The landfill is located in wetlands. It received sewage treatment plant sludge, cesspool wastes,
    spent oil absorbents, paints, antifreeze, solvents, thinners, pesticides, and photolab wastes.

    The Former Sanitary Landfill was used as a disposal area from 1974 to 1980;  the adjacent Current Sanitary Landfill
    has been used since 1980. The  total area covered by the landfills is estimated to be 16.5 acres. Wastes deposited
    in the  landfills include sewage  treatment plant  sludge, cesspool wastes, paints, thinners,  solvents, antifreeze,
    pesticides, hospital wastes, asbestos, and photolab wastes.

    The Pesticide Control Shop Rinse Area has been located in Building  841 since 1962.  Records indicate that from
    300 to  400 gallons of nnsate per day were generated from this source.

    The wetlands filled by the Fishing Point Landfill area are located directly on the confluence of the Patuxent River
    and the Chesapeake Bay.  The water in this area is used for shellfishing and fishing.  Hazardous  substances were
    disposed of in the wetlands  that existed before the landfill was established.  The wetlands were located along the
    southern and  northern borders of Fishing Point. Two fishing areas  on the site. Pond 3 and Pine Hill Run, are
    located in the surface water pathway of the Pesticide Control  Shop Rinse Area and the  Former and Current
    Landfills.  Pine Hill Run empties into the Chesapeake  Bay.

    Status  (May 1994):  A remedial investigation for the facility is currently being conducted by the Navy.  Based on
    this work, the Navy has performed a removal action at the Fishing  Point Landfill to control the erosion  of the
    landfill into the Patuxent River.

    [The description  of the site (release) is  based  on information available at the time the site was scored.   The
    description may change as additional information is gathered on  the sources and extent of contamination.  See 56
    FR 5600, February 11.  1991, or subsequent FR  notices.}
    Superfund hazardous waste site Nstad under tfie Comprehensive Environmental Response. Compensation, and Liability Act (CERCLA) as amended

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vvEPA
UNITED STATES
ENVIRONMENTAL PROTECTION
AGENCY          	
NATIONAL PRIORITIES LIST
     	  OERR Hazardous Site Evaluation Division Washington. DC 20460                          May 1994

                     _..                            PORT HADLOCK  DETACHMENT  (USNAVY)
                                                                           Indian Island, Washington

    Conditions at Proposal (June 23, 1993):  Port Hadlock Detachment of the U.S.Navy, is located on Indian Island
    in Jefferson County southeast of the city of Port Townsend, Washington. The 2,700-acre island is  approximately
    4.5 miles long and 0.5 miles wide.

    The island was purchased by the Navy in 1948 to store explosives. Currently, the island receives, stores, maintains,
    and issues Naval ordnance; assembles anti-submarine rocket airframes;  and provides mine maintenance.

    Sources of hazardous waste activity at the site include municipal and industrial landfills, drum and container storage
    areas, above and below ground storage tanks, burn pits, spills, and possible areas of illegal dumping.  Potentially
    hazardous wastes-associated with the sources at the site include heavy metals, pesticides, PCBs, solvents, explosives,
    paints and pigments,  and acids and bases.

    Site investigations conducted by  the Navy in 1989 documented marine sediments contaminated with heavy metals,
    PCBs, and other organic compounds. Shellfish have also been found contaminated with heavy metals and pesticides.

    Commercial and recreational harvesting of shellfish occurs on the beaches at the north and south ends of the island,
    at Bishop's Point on  the east side of the island, as well as in coastal waters surrounding the island.  The beach at
    the north end has been posted as closed for the collection of shellfish.  Although most of the island is restricted,
    civilians occasionally enter along beaches by boat to collect clams. Native Americans also are permitted access  for
    collecting shellfish.  Fort Flagler State Park is located a few hundred feet from the north end of the island.

    Status (May 1994): The Washington State Department of Ecology issued an enforcement order to the Navy in June
     1991, requiring further investigation and cleanup.  The Navy is currently conducting removals, under the guidance
    of EPA and the State, at three areas on the base that were formerly used to  dispose of ordnance, which should
    eliminate  the  need  for further cleanup  in these  areas.   The Navy  is  near  completion of  a remedial
     investigation/feasibility study of two former landfills on the base.  A cleanup  decision for the landfills is planned
     for late 1994.

    [The  description of the site (release)  is based  on information available at the  time the site was scored.   The
    description may change as additional information is gathered on the sources and extent of contamination.  See 56
     FR 5600. February 11, 1991, or subsequent FR  notices.]
     Superfund hazardous waste site listed under me Comprehensive Environmental Response. Compensation, and Liability Act (CCRCLA) as amended

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&EPA
UNITED STATES
ENVIRONMENTAL PROTECTION
AGENCY             	
NATIONAL PRIORITIES LIST       NPL
     	 OERR Hazardous Site Evaluation Division Washington. DC 20460	May 1994

                     _.                                        PORTSMOUTH NAVAL SHIPYARD
                                                                                         Kittery, Maine

    Conditions at Proposal (June 23, 1993):  Portsmouth Naval Shipyard (PNS)  is located on Seavey Island in the
    Piscataqua River in Kittery, York County, Maine. The 278-acre Seavey Island is composed of three smaller islands
    (formerly Seavey, Jamaica, and Dennett's Islands) connected by 90 acres of fill. Filling of the tidal flats between
    the original islands took place gradually as space needs for PNS increased.  The PNS property also includes the
    undeveloped Clark's Island, which is connected by a bridge to Seavey Island.

    PNS, established in 1690, became a Navy shipyard in 1800. During its operational history, the shipyard was used
    for construction of ships and submarines and is currently used to overhaul nuclear propulsion fleet ballistic missile
    submarines and attack submarines. PNS consists of three dry docks, 6,500 linear feet of berthing, and 376 buildings
    and other structures. Hazardous wastes have been stored, disposed of, spilled, and/or treated at more than 30 areas
    on the site.

    From 1945 to 1975, untreated acidic and alkaline wastes, waste battery acid  and lead sludge, waste water and spent'
    baths from an electroplating operation, and other wastes from  various industrial shops were discharged into the
    Piscataqua River via industrial waste outfalls.  From 1945 until approximately 1978, 25 acres of tidal flats between
    Jamaica and Seavey Islands were filled with wastes including chromium-,  lead-, and cadmium-plating sludge;
    asbestos insulation; trichloroethylene; methylene chloride; toluene; methyl ethyl ketone; drums of waste paint and
    solvents; mercury-contaminated materials; sandblasting grit containing various metal wastes; and dredged sediments
    from the Piscataqua River.

    Dredged sediment samples collected in the late 1970s near  the industrial outfalls were found to contain elevated
    concentrations of metals, PCBs, and other contaminants. Although Portsmouth Harbor and the lower  Piscataqua
    River are heavily industrialized, the Navy has indicated that the probable source of the sediment contamination is
    the industrial outfalls at PNS.  In  addition, hazardous substances attributable to PNS are present at elevated levels
    in wetlands bordering Seavey Island.

    Ground water supplies drinking water to over 10,000 people within 4 miles  of the site.  Salmon Falls, the Cocheco
    and Piscataqua Rivers, the Great Bay estuary, and coastal tidal waters within 15 miles downstream of PNS are used
    for commercial and recreational fishing.  In addition, extensive wetlands communities exist along surface water
    bodies downstream of the PNS site.

    Status (May 1994): The waste battery acid and lead sludge was voluntarily capped in early  1994.

    [The  description of the site (release)  is based on  information available at  the time the site  was scored.   The
    description may change as additional information is gathered on the sources and extent of contamination.  See 56
    FR 5600,  February 11, 1991, or  subsequent FR notices./
    Supertund hazardous waste site listed under the Comprehensive Environmental Response. Compensation, and Liability Act (CCRCLA) as amended

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&EPA
UNITED STATES
ENVIRONMENTAL PROTECTION
AGENCY
NATIONAL PRIORITIES LIST
     	OERR Hazardous Site Evaluation Division  Washington. DC 20460	      May 1994

                   . _.                          PUGET SOUND NAVAL SHIPYARD COMPLEX
                                                                           Bremerton, Washington

    Conditions at Proposal (May 10, 1993):  The Puget Sound Naval Shipyard Complex is located in Bremerton,
    Washington, along Sinclair Inlet on Puget Sound approximately 15 miles west of Seattle.  The Navy has owned and
    operated facilities at this location since 1891.

    The complex, which consists of the Naval Shipyard and the Naval  Supply Center, employs over 12,000 people.
    The site covers approximately 350 acres of land and an additional 340 acres of  tidelands along  11,000 feet of
    shoreline.  The complex contains over 300 buildings and structures, 6 deep water piers, 6 dry docks, and numerous
    moorings.   The major industrial activities at  the complex  include  construction, repair, overhaul, maintenance,
    mooring, berthing, and dry docking of naval ships and staging and supply of materials.  The activities generate a
    large amount of hazardous waste.

    EPA has identified 58 known or potential sources of contamination  at the complex. In 1990 and 1991, the Navy
    found elevated levels of heavy metals, semi-volatile organic compounds, PCBs, and pesticides in surface  soils,
    subsurface soils, and ground water in a number of areas throughout the complex, as  well as in sediments of Sinclair
    Inlet adjacent to the shipyard.  Based on these results, the  Washington Department of Ecology (WDOE) issued
    separate administrative orders to the  Naval Shipyard and the Naval  Supply Center requiring the Navy to conduct
    further studies of the contamination.

    Sinclair Inlet provides  a habitat for a vanety  of marine fishes, the most important being the salmomd species.
    Commercial and recreational fishing, boating,  and contact recreation occur in the inlet.

    Status (May 1994): The complex has been split into four  operable units:  OU-NSC, the Naval Supply Center;
    OU-A, a former liquid waste disposal area;  OU-B, the industrial core and marine portion; and OU-C, oil storage
    tank area.  The first phase of the remedial investigation (RI) sampling was completed at OU-A and OU-NSC;  plans
    for a second phase  are complete. The first phase of RI sampling is underway at  OU-B.  A removal action \vas
    completed at OU-NSC (8000 tons of lead-contaminated surface soil were excavated and disposed of offsite) and one
    is planned for OU-C (steam-sparging of petroleum contaminated soil and ground water).

    [The description of the site (release) is based on information available at the time the site was scored.   The
    description may change as additional information is gathered on the sources and extent of contamination. See 56
    FR 5600, February 11, 1991, or subsequent FR notices.]
   Superfund hazardou* wast* tit* lifted under ihe Compreherwive Environmental Re»pon«e, Camperwafion, and Liability Act (CERCLA) as amended

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 A |™r>A        UNITED STATES
^B3f t ff"\.       ENVIRONMENTAL PROTECTION
 ^•^ "••  *  *       ArtCWOV
                      AGENCY
NATIONAL PRIORITIES LIST       NPL
     	OERR Hazardous Site Evaluation Division Washington. DC 20460	May 1994

                    . -                                 REDSTONE ARSENAL (USARMY/NASA)
                                                                                 Huntsville, Alabama

   Conditions at Proposal (June 23, 1993):  Redstone Arsenal (RSA) is located in Huntsville, Madison County,
   Alabama.  RSA encompasses 38,300 acres, 36,459 of which the Department of the Army controls.  The George
   C. Marshall Space Flight Center (MSFC) leases the remaining 1,841 acres.  Approximately  18,400 acres are
   woodlands, 9,200 are leased for agricultural use, 4,100 are designated as the Wheeler National Wildlife Refuge,
   and the Tennessee Valley Authority (TVA) controls approximately 2,900 acres.  Morton-Thiokol Chemical Corp.,
   a government contractor-operator, uses a portion of RSA property for the development of solid rocket propeliants
   and the General Aniline and Film Corp. leases approximately 10 acres for the production of iron carbonyl.  Olin-
   Mathieson Chemical Co. (DDT manufacturing), Raytheon Co. (rocket motor assembly), Rohm and Haas Allied
   Chemical and Dye (chlorine manufacturing), and Stauffer Chemical  Co. (chlorine manufacturing) have conducted
   operations at RSA in the past.

   Three separate military facilities (Redstone Ordnance Plant, Huntsville Arsenal, and Gulf Chemical Warfare Depot!
   were established at RSA in  1941 and worked together from 1942 to 1945, producing conventional and chemical
   munitions used during World War II.  After the war. Gulf Chemical Depot stored captured German chemical agents
   and surplus chemical munitions and agents. The munitions were buried in various locations throughout RSA.  As
   activities increased,  the Army incorporated all lands  that  the three facilities previously used into the present day
   RSA.

   Six mustard gas manufacturing plants operated at RSA from 1942 until 1943.  These plants produced substantial
   quantities of sulfur  monochloride, ethylene, brine, caustic  soda, liquid caustic,  chlorine,  and  thionyl chloride.
   Lewisite, a chemical warfare agent containing arsenic, was manufactured in four of the plants. Wastes generated
   from lewisite manufacturing were disposed of in shallow surface impoundments.

   Following World  War II, the chemical manufacturing facilities were leased to private  firms for  production of
   commercial chemicals and pesticides. The manufacture of DDT and other pesticides resulted in significant amounts
   of hazardous wastes. Large quantities of wastewater containing DDT residues were discharged to Huntsville Spring
   Branch.  An  11-mile stream segment,  including Huntsville Spring  Branch, Indian Creek  and  a portion of the
   Tennessee River in the Tnana area, was placed on the National  Priorities List  in 1983 due  to past DDT disposal
   practices.  In 1983,  Olin-Mathieson, the principal DDT manufacturer, began cleanup actions under a U.S. Justice
   Department consent decree.

   In October 1983, RSA submitted a RCRA closure/post-closure plan  for DDT Landfill Ql. RSA also submitted a
   Part B permit application in May  1984.  Based on information provided in the  closure/post-closure plan, EPA
   authorized RSA to remove DDT Landfill Ql from its Part B permit  application.  Following revisions to the Part
   B permit application, RSA was issued a permit for nine Hazardous Waste Storage Igloos  in April 1986.  RSA
   submitted a revised  Part B permit application on October 21, 1988.   The Storage Igloos,  Open Burning Pans and
   four new Storage Igloos continued to operate under interim status. MSFC filed three Part A applications for several
   areas on us leased portion of the site; however,  MSFC submitted a closure plan in lieu of a Part B application.  The
   latest information provided to EPA indicates that there  are approximately 198 solid waste management units or areas
   of concern  distributed over the approximately 38.300 acre site.

   Two aquifers beneath RSA are considered interconnected and are referred to as the Tuscumbia-Fort Payne aquifer.
   Three municipal systems have wells located within a 4-mile radius of RSA.  An estimated 39,900 people utilize the
   wells as their source of drinking water.

   Status (May  1994): New information indicates that there are approximately 198 areas of concern distributed over
   the approximately 38,300 acre site. EPA  is  considering various alternatives for the site.

   [The description of the site  (release) is based on information available at the time the site was scored.   The
   description may change as additional information is gathered on the sources and extent of contamination.  See 56
   FR 5600, February 11, 1991, or subsequent FR notices.]
   Superfund hazardous waste sit* listed under (tie Comprehensive Environmental Response. Compensation, and Liability Act (CERCLA) as amended

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UNITED STATES
ENVIRONI
AGENCY
^gyi _• J %       ENVIRONMENTAL PROTECTION
                                                              NATIONAL PRIORITIES LIST       NPL
                   OERR Hazardous Site Evaluation Division  Washington. DC 20460                           May  1994
                 _                                                         RIPON CITY LANDFILL
                                                                Fond Du  Lac County, Wisconsin

Conditions at Proposal (June 23,1993): The Ripon City Landfill (RCL) site is located on approximately 7.3 acres
of land in Fond Du Lac County, Wisconsin. The site is approximately 0.75 miles northwest of the City of Ripon,
on County Road NN, south of the intersection with County Road FF. The site is located in a rural area with woods
to the north, an active gravel pit operation to the west, and a private residence and an agricultural field to the south.
East of the site, a portion of the old (original) gravel pit not used by RCL, is being filled with miscellaneous debns
by passersby.

RCL is owned by Arlene Sauer, who leased the land to the City of Ripon m 1967 for the purposes of landfilling.
[n March 1968, the Wisconsin Department of Natural Resources (WDNR) issued  a  permit  to the City  for the
operation of the landfill.  WDNR conducted a  routine site inspection of RCL in early 1968 and discovered that the
landfill was being used  to dispose of liquid wastes and containers  from Speed Queen, an electric appliance
manufacturer in Ripon. Speed Queen apparently had disposed of its waste at the site since 1966.  In 1973, after
reviewing the wastes Speed  Queen dumped at the landfill, WDNR determined  that the waste was considered
hazardous and should not be disposed of at the City landfill. Speed Queen continued to dump at the facility until
1979. In 1981, WDNR requested that the City  put together a closure plan for the landfill and install new monitoring
wells since older monitoring wells were destroyed by site operations. At tint time WDNR requested that the City
conduct quarterly ground water sampling at the facility, as required by State law for all closed landfills. The facility
was closed in February 1983.

During the fall of 1984, WDNR collected  ground water samples  from private wells surrounding the RCL.   A
residential  well located  500  feet south and hydraulically downgradient  of the  landfill contained total-1,2-
dichloroethylene, trichloroethylene, and vinyl chloride. Due to the detection of these contaminants, WDNR sampled
a hydraulically downgradient monitoring well at  the  site; trans-l,2,-dichloroethylene and vinyl  chloride were
detected.  This sampling  confirmed that the landfill was the source of contamination in the residential well.

In June 1984 and July  1985,  EPA performed  a site inspection  at RCL.  During the  inspection, EPA sampled  the
monitoring wells and confirmed the presence of vinyl chloride, trans-1,2-dichloroethylene, benzene, and xylene in
ground water beneath the site. The City of Ripon is currently  submitting quarterly ground water sampling results
from the monitoring wells onsite.  The sampling results  have  found elevated concentrations of vinyl chloride in
groundwater beneath and hydraulically downgradient of the site.

Ground water is the primary route through which people may be exposed to  contaminants associated with the RCL
site.  Within 4  miles of the site, residents obtain drinking water solely from  ground water.  The City of Ripon  has
a population of 11,286 people and is entirely within 4 miles of  the site.  The City of Green Lake (southwest of the
landfill)  utilizes one municipal well that serves approximately 500 people within 4 miles of the site. In addition,
approximately 2,077 people, including residents, students, and workers, not served by the municipal drinking water
sources  receive drinking water from private wells.  There is  no drinking water source other than ground water
available for people living within 4 miles of RCL.

Status (May 1994): EPA is considering various alternatives for the site.

[The description  of the  site  (release is based on  information available at the time  the site was scored.   The
description may change as additional information is gathered on the sources and extent of contamination.  See 56
 FR 5600, February 11, 1991, or subsequent FR notices.]
Supwfund hazardous waste lite listed under m« Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) as amended

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A  r"OA        UNITED STATES
fSfrl"! V\       ENVIRONMENTAL PROTECTION
^•^ mmm *   »       Arspwrv
                                                              NATIONAL PRIORITIES LIST      NPL
 	OERR Hazardous Site Evaluation Division Washington. DC 20460	.	May 1994


               ' ~                              SOUTH WEYMOUTH  NAVAL AIR STATION
                                                                     Weymouth, Massachusetts

Conditions at Proposal (June 23, 1993): South Weymouth Naval Air Station (SWNAS) is located east of Pond
Street (Route 18) at the southern end of Weymouth, Norfolk County, Massachusetts, and extends into the Towns
of Abington and Rockland, Plymouth County, Massachusetts.  SWNAS is approximately 1,500 acres in size.  The
surrounding area is suburban, with a mixture of residential, industrial, and commercial land use.

The U.S. Navy  acquired the property in  1941 and  used it as a support facility for aircraft during World War II.
The facility is comprised of two active runways and approximately 200 buildings used for the support of flight
operations.   Activities performed at the  facility include aircraft maintenance, refueling, personnel training and
housing, and administrative support services.

Reportedly, station-generated wastes, some of which can be classified as hazardous, were disposed of in three onsite
landfills.  The West Gate landfill operated from 1969 to  1972.  The Rubble Disposal area and the Small Landfill
operated from 1972 until the mid-1980s. Flammable liquid wastes were reportedly burned in the onsite firefighting
training area.  Small amounts of waste battery acid, possibly containing lead, may have been disposed of in a tile
leachfield.  The U.S.  Coast Guard operates a buoy  maintenance depot on the property through an agreement with
the Navy.  The buoy depot reportedly sandblasted lead-based paint from buoys from  1972 until 1986.   Other
potential source areas onsite include 12 PCB transformers and a sewage treatment plant.

The Navy completed a  preliminary assessment of  SWNAS in April 1988,  and prepared a Draft Environmental
Impact Statement in August 1990.  A site investigation of SWNAS was completed by the Navy in February 1992,
and included the installation of 21 ground water monitoring wells around six of nine identified source areas on the
property.  Soil samples were collected during the  installation of these wells, and ground water, surface water,
sediment, and soil samples were collected from the vicinity of source areas on the property.  Soil samples were
found contaminated with volatile organic compounds and heavy metals. Ground water samples collected down from
the West Gate  Landfill,  the Rubble Disposal  area,  fire  fighting training area, and  the tile leachfield were
contaminated primarily  with heavy metals.

Eighteen municipal drinking water wells are located  within 4 miles of source areas at SWNAS. These wells provide
dnnkmg water to approximately 74,000 people. In addition, approximately 85 private drinking water wells located
within 4 miles of SWNAS  draw from the same aquifer.

Status (May  1994):  EPA is considering various alternatives for the  site.

[The description of the site (release) is  based on  information available at the time the site was scored.   Tlie
description may change as additional information is gathered on the sources and extent of contamination.  See 56
FR 5600, February 11, 1991, or subsequent FR notices.]
Superfund hazardous waste site listed under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCUA) as amended

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vvEPA
UNITED STATES
ENVIRONMENTAL PROTECTION
AGENCY           	
NATIONAL PRIORITIES LIST       NPL
     	OERR Hazardous Site Evaluation Division Washington. DC 20460	Mav 1994

                     _.                                                             SPECTRON, INC.
                                                                                      Elkton, Maryland

    Conditions at Proposal (October 14,1992): Spectron, Inc., covers approximately 8 acres at 111 Providence Road
    in Elkton, Cecil County, Maryland.  The area is primarily rural. From the 1800s until 1946, the site was occupied
    by several paper manufacturers.  In  1961, Galaxy Chemicals, Inc., began recovering organic solvents from wastes
    generated by  the electronics, pharmaceutical, paint, lacquer, coatings and chemical process industries. In  1975,
    the company  went bankrupt.  In 1976, Solvent Distillers, Inc., began operations at the property.  In 1978, the
    company changed its name to Spectron, Inc.  The facility closed in August  1988, and Spectron is currently in
    bankruptcy  proceedings.

    Throughout the years, several lagoons reportedly were in use. The location of one evaporation lagoon can be
    documented.   During a joint EPA/Maryland Water  Resources Administration inspection at the site in 1979,
    approximately 1,500 drums were found in the area of the former evaporation lagoon.  Approximately 500 of these
    drums were damaged, rusting, open, and leaking.  Adjacent to this lagoon was a sludge pit that received solid
    residues. It had been filled in June 1969.  Also located on the site were between 50 and 73 tanks holding 582,000
    gallons of hazardous substances, including chlorinated solvents, other organic  compounds, and heavy metals.

    Spectron has been inspected many times by  both EPA and the Maryland Department of the Environment (MDE).
    In 1979, MDE sampled cooling water discharges into Little Elk Creek.  Results  indicated elevated levels of
    chlorinated solvents, benzene, ethylbenzene, toluene, and xylenes.  In 1989, EPA detected similar contaminants in
    leachate seeps entering Little Elk Creek and also in water samples of the creek downstream of the facility.

    Little Elk Creek and Elk River are used for recreational fishing and are designated by the State for protection or
    maintenance of aquatic life.  Little  Elk Creek wetlands within 15 miles  are also potentially threatened by air
    pollution. The site has a long history of complaints from nearby residents of odors apparently emanating from the
    lagoon and sludge pit.  Various county. State, and Federal actions were taken against the facility, one leading to
    its closure in  August  1988.

    In 1980, MDE installed seven monitoring wells onsite.  EPA sampling in March 1981 detected high levels of
    organic contaminants m several of the wells.  EPA sampling in November 1987 confirmed the earlier results. The
    nearest private wells are within several hundred feet of the site.  Approximately 5,200 people obtain drinking water
    from private wells within 4 miles of the site.  Wells are also used for watering livestock.

    In May  1989, EPA used CERCLA emergency funds to stabilize the site, preventing the release of contaminants that
    would be an imminent threat to human health or the environment.

    In August 1989, under an Administrative Order on Consent (AOC) with the potentially responsible parties (PRPs)
    issued  under  CERCLA Sections 106(a) and 122, EPA removed and  disposed of wastes and cleaned the tanks,
    berms,  and dikes.  In April  1990, EPA negotiated a second AOC to ensure that the PRPs had the opportunity to
     remove certain materials from the site, and in September 1991, EPA negotiated a third AOC calling for the PRPs
     to control releases from seeps or ground water at the site that are entering Little Elk Creek.

     Status (May  1994):  EPA is considering various alternatives for the site.

    [The description of the site (release) is based  on information available at the time the  site was scored.   The
    description may change as additional information is gathered on the sources and extent of contamination.  See FR
     5600, February II, 1991,  or subsequent FR notices./
   Superfund hazardous waste site listed under me Comprehensive Environmental Reeponse, Compensation, and Liability Act (CERCLA) as amended

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                   UNITED STATES
                   ENVIRONMENTAL PROTECTION
                   AGENCY
NATIONAL PRIORITIES LIST       NPL
                  OERR Hazardous Site Evaluation Division Washington. DC 20460
                                                                                                 May 1 994
                 —                    SPOKANE JUNKYARD/ASSOCIATED PROPERTIES
                                                                           Spokane, Washington

Conditions at Proposal (October 14, 1992): The Spokane Junkyard/ Associated Properties site covers 10.5 acres
in a light commercial and residential area in Spokane, Spokane County, Washington. It is surrounded by single and
multiple-family dwellings, as well as several private businesses and an elementary school.

From the 1940s until 1983, the Spokane Junkyard accepted military surplus items, automobiles, heavy equipment,
appliances, and electrical transformers.   On July  15,  1987,  an  explosive fire consumed the Spokane Junkyard
property.  Adjacent to the junkyard is a property where  Spokane  Metals Co. recycled scrap metal,  including
transformers, from 1936 to 1983.  The site also encompasses a  residential lot and a vacant  field owned by two
individuals, and an undeveloped strip of land dedicated to  public  use.

Following the 1987 fire,  EPA used CERCLA emergency  funds to transport 140 drums of hazardous liquids and
solids (including PCB oils, flammable materials, corrosive  materials, and chlorinated organic compounds) and 140
cubic yards  of asbestos  to  regulated landfills.  During 1987-89, EPA found elevated levels of heavy metals
(including liquid mercury, cadmium, and lead) and PCBs  in surface soils. An estimated 200,000 square feet of
contaminated soil remain onsite.  The site is currently fenced, but EPA has received reports of attempts at illegal
access.

The site lies above the Spokane Valley Aquifer, designated a Sole Source Aquifer under the Safe Drinking Water
Act. Approximately 165,000 people obtain drinking water  from public and private wells within 4 miles of the site.
Wells within 4 miles are also used for irrigation. The wells are potentially threatened because water is shallow (40
feet in some cases) and soils are permeable, permitting soil contaminants (as deep as 3.5 feet in some cases) to reach
ground water.

Status (May 1994): EP.-V is considering  various alternatives for  the site.

(The description  of the site (release) is based on  information available  at the time the site was scored.   The
description may change as additional information is gathered on the sources and extent of contamination.  See FR
5600. February 11, 1991  or subsequent FR notices.]
Superfund hazardous waste site listed under the Comprehensive Environmental Response. Compensation, and Liability Act (CERCLA) as amended

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                   UNITED STATES
                   ENVIRONMENTAL PROTECTION
                   AGENCY
NATIONAL PRIORITIES LIST      NPf
 	OERR Hazardous Site Evaluation Division  Washington. DC yMM	May 1994

                 _.                        STAUFFER CHEMICAL  CO. (TARPON SPRINGS)
                                                                           Tarpon Springs, Florida

Conditions at Proposal (February 7, 1992):  Stauffer Chemical Co. is located in an industrialized area between
Anclote Boulevard and the Anclote River in Tarpon Springs, Pinellas County, Florida, about 1.6 miles east of the
Gulf of Mexico.  Stauffer purchased  the 160-acre facility from Victor Chemical  Works in 1960.  The facility's
ownership has changed several times;  it is currently owned by Stauffer Management Co.

From 1950 to 1981, the facility manufactured elemental phosphorus from phosphate ore.  The processed ore  was
shipped off-site to be used primarily for  production of agricultural pesticides, food-grade phosphates, and flame
retardants.

During the years  of operation, a number of processing wastes  were disposed of on the site.  A system of seven
unlined lagoons,  about  600 feet from the  Anclote  River,  received discharges of waste scrubber  liquid  and
phosphorus water, as well as overflow from a calcium silicate  slag pit.   At some time, two of the lagoons were
dredged, and the dredged material, composed of calcium sulfate/sulfite, calcium silicate, calcium fluoride, phosphate
sand, and calcined phosphate dust, was placed in two piles approximately 40 feet from  the Anclote River.

Other onsite disposal activities included the dumping of furnace dust in an isolated pond and the burial of 900 drums
of calcined phosphate sand consisting of 20 % elemental phosphorus. Over 500,000 tons of chemical process wastes
were disposed of  on the site between  1950 and 1979.

The site is underlain by a surficial aquifer composed primarily of sand and the Floridan Aquifer composed of
limestone.  Water is reached at an average depth of 8 feet below land surface. The Floridan Aquifer is encountered
at 17 to 37 feet and is approximately  100 feet thick in the area  of the site.

Onsite monitoring wells into both aquifers are contaminated with barium, chromium, lead, vanadium, zinc, copper,
and arsenic, according to EPA tests conducted in 1988 and 1989.  The 1989 tests  found these  metals in the onsite
waste piles.  An estimated 8.500 people in the Tarpon Springs area receive drinking water from 23 public wells and
3 private wells located within 4 miles of the site.  Because of the  depths of the aquifers, all drinking water wells
within 4 miles of the site are potential targets.

Status (May 1994):  In July 1992,  Atkerrux, a subsidiary of Stauffer Management Co., signed an Administrative
Order on Consent, agreeing to conduct a remedial investigation/feasibility study (RI/FS) that EPA is overseeing.
The RI has been  completed and  approved.  EPA will complete the baseline risk assessment for the site in the
summer of 1994.  The FS is also expected to be completed in the  summer of 1994.

[The description  of the site (release) is based on information available at the time the site was scored.   The
 description may change as additional information is gathered on the sources and extent  of contamination.  See FR
 5600, February II, 1991 or subsequent FR notices.]
 Suoerfund hazardous waste sit* listed under (tie Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) as amended

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&EPA
UNITED STATES
ENVIRONMENTAL PROTECTION
AGENCY
NATIONAL PRIORITIES LIST      NPL
                      OERR Hazardous Site Evaluation Division  Washington. DC 20460
                    ~                                                          SUMMITVILLE MINE
                                                                      Rio Grande  County, Colorado

    Conditions at Proposal (May 10, 1993): Summitville Mine is located in the San Juan Mountains near Del Norte
    in Rio Grande County, Colorado. The 1 ,400-acre site is extremely remote at an elevation of more than 1 1 ,000 feet,
    making the site accessible by vehicle only in the summer months.

    Mining began at Summitville in the late 1800s.  The most recent operator, Summitville Consolidated Mining Corp. ,
    Inc. (SCMCI), began open pit mining and recovering gold by cyanide heap leaching in 1986.

    SCMCI  originally designed the mining operation as a non-discharging waste water facility.  Problems  with
    discharges eventually required SCMCI to obtain a National Pollution Discharge Elimination System (NPDES) permit
    from the State tcToperate a waste water treatment plant.

    Several releases of water contaminated with cyanide and metals have been documented at the mine.  The State has
    issued Notices of Violation to SCMCI for unpermitted releases of contaminated water. Fish kills have been reported
    from Wightman Fork downstream to Terrace Reservoir, approximately 20 miles downstream from the mine site.

    Because SCMCI has declared  bankruptcy, EPA is maintaining the site using CERCLA emergency funds to ensure
    that ISO million gallons of water  contaminated with cyanide and heavy metals are not released into Wightman Fork.
    Wightman Fork flows into the Alamosa River 5 miles downstream.

    Status (May 1994): Since December 1992, EPA has increased the capacity and efficiency of the water treatment
    plant; reduced the volume of process water in the heap leach pad by 60 percent; plugged the Reynolds Adit, which
    was a large source of metals contamination; conducted a pilot study to determine if cyanide within the heap leach
    pad could be removed by rinsing; and placed 1  million cubic yards of the Cropsy waste pile into the open mining
    pits at the site.  The final cap of waste piles and revegetation of the cap  placed in the mine pits is expected to be
    completed in 1995.

    [The description of the site (release) is based on  information available at the time the site was scored.   The
    description may change as additional information is gathered on the sources and extent of contamination.  See 56
    FR 5600, February 11,  1991. or subsequent FR nonces.]
   Superfund hazardous waste SIM Nstad under the Comprehensive Environmental Response. Compensation, and Liability Ad (CERCLA) as amended

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svEPA
UNITED STATES
ENVIRONMENTAL PROTECTION
AGENCY
NATIONAL PRIORITIES LIST      NPL
     	OERR Hazardous Site Evaluation Division  Washington. PC 20460   	 Mav 1QQ4


                     ~                                               UGI  COLUMBIA GAS PLANT
                                                                            Columbia, Pennsylvania

    Conditions at Proposal (June 23, 1993):  UGI Columbia Gas Plant is a 1.6-acre site located on Front Street in
    Columbia, Lancaster County, Pennsylvania. From approximately 1853 to 1935, Columbia Gas used the site for
    gas manufacturing.  Ownership of the property was transferred to Pennsylvania Power and Light (PP&L) in 1935,
    and  the Lancaster County Gas  Company in  1949.  Lancaster County Gas  merged with UGI Corporation and
    occupied  the site until 1976, when the land was privately purchased.  The property is currently used as a boat
    dealership.   The land surrounding the site is predominantly residential.   The Susquehanna River is located
    approximately 400 feet southwest of the site.

    The primary sources of contamination at the site include the gas holder, the relief holder pit, and a 4,200 square-
    foot area  of contaminated soil. The main waste streams consist of tar and purifier wastes. Hazardous substances
    associated with the contaminant sources and waste streams include volatile organic compounds (VOCs), semi-volatile
    organic compounds (semi-VOCs),  polycyclic aromatic hydrocarbons (PAHs), heavy metals, and cyanide.  During.
    operation of the site, overflows from an onsite tar separator were directed to an  open ditch that led to  the
    Susquehanna River.  Records show that local fishermen complained to the plant that their boats were being covered
    with tar.

    The Pennsylvania Department of Environmental Resources (PADER) conducted a preliminary assessment of the UGI
    Columbia Gas Plant site in  August 1984.  In 1985, PP&L and UGI Corp. conducted a field investigation to
    determine the nature and extent of contamination at the site.  Tar was encountered in test pits dug in the gas and
    relief holders and in several  other test pit and boring areas onsite.  Soil, sediment, sludge, tar, and ground water
    samples collected during this investigation revealed VOCs, semi-VOCs, heavy metals, and cyanide contamination.
    An  area  of Susquehanna River sediments directly downstream of the site was found to contain tar-related
    contaminants such as PAHs and cyanide.

    In 1987,  PP&L  and UGI recovered approximately  100 cubic yards  of tar-contaminated material which had been
    pushed into a railroad pedestrian tunnel bordering the site.  They disposed of the tar sludge in a facility permitted
    under EPA's Resource Conservation and Recovery Act (RCRA).   Also during  1987, it was determined that
    approximately 80 cubic yards of sediment southwest and directly downstream of the site were contaminated with
    tar from the tar  separator and open ditch.

    In January  1991 EPA conducted an expanded site inspection of the UGI Columbia Gas Plant.  The ground water,
    soil, and surface water samples from the Susquehanna River confirmed previously reported contamination of VOCs,
    semi-VOCs, PAHs, and cyanide.  Within 15  miles downstream of the site, approximately 90  people use  the
    Susquehanna River as a source of drinking water.  Approximately  1,000 people use ground water wells within 4
    miles of the site for water.

    Status (May 1994): EPA is considering vanous alternatives for the site.

    [The description of the site (release) is based on information available at the time the site was scored.  The
    description may change as additional information is gathered on the sources and extent of contamination.  See
    56 FR 5600, February 11, 1991, or subsequent FR  notices.]
    Superfund hazardous waste site fisted under th« Comprehensive Environmental Response, Compensation, and Liability Act (CCRCLA) as amended

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v>EPA
UNITED STATES
ENVIRONMENTAL PROTECTION
AGENCY
NATIONAL PRIORITIES LIST       NPL
                      OERR Hazardous Site Evaluation Division  Washington, DC 20460
                                                                                                   May 1994
                    —               VANCOUVER  WATER STATION  #1  CONTAMINATION
                                                                           Vancouver, Washington

    Conditions at Proposal (June 23, 1993): Vancouver Water Station #1 is located at East Reserve and Northeast
    Fourth Plain Boulevard in Vancouver, Clark County, Washington.  Vancouver Water Station #1 is one of several
    stations that consists of ground water wells that supply drinking water through a blended system to approximately
    134,000 people.  In October 1992, EPA listed a nearby water station, Vancouver Water Station #4, on the National
    Priorities List.

    In response to the Safe Drinking Water Act (SOWA), ground water from the wells at Vancouver Water Station #1
    was sampled in 1988.  Since 1988, increasing levels of tetrachloroethene (PCE) have been detected in each of the
    wells comprising Vancouver Water Station # 1.  While levels of PCE have exceeded the EPA maximum contaminant
    level established-under SDWA, the City of Vancouver has used blended water from the Vancouver Water Station
    #1 wells by selectively pumping lower concentration wells.

    An extensive soil gas and ground water study conducted by the City of Vancouver was unsuccessful in identifying
    the source of contamination in Vancouver Water Station #1 wells.  In addition, a subsequent soil gas and ground
    water study conducted by EPA was also unsuccessful in identifying the source of ground water contamination.
    Although a definitive source has not been  identified, several drycleaning facilities, gas stations, and other facilities
    in the area are suspected contributors of ground water contamination.

    Status (May 1994):  Since June 1993,  the city  of Vancouver  has been operating five  water treatment towers
    designed to "strip" PCE from the water.  EPA  is currently considering various alternatives for further evaluation
    of potential sources and performing remediation of the existing ground water contamination.

    (The description of the site (release)  is based on information available at the time the site was scored.   The
    description may change as additional information is gathered on the sources and extent of contamination. See 56
    FR 5600. February 11, 1991, or subsequent FR notices.]
   Supsrfund hazardous waste site listed under tfie Comprehensive Environmental Response. Compensation, and Liability Act (CERCtA) as amended
                                                                                                       Revised

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oEPA
UNITED STATES
ENVIRONMENTAL PROTECTION
AGENCY	
NATIONAL PRIORITIES LIST       NPF
     	OERR Hazardous Site EvaluationJ)ivision  Washington. DC 20460	May

                                                           WHITING  FIELD NAVAL AIR STATION
                    	                                                                 Milton, Florida

    Conditions at Proposal (January 18, 1994): Whiting Field Naval Air Station is a naval aviation training facility
    approximately 7 miles north of Milton, Santa Rosa County, Florida. The facility is located in the northwest Florida
    panhandle,  20 miles northeast of Pensacola on State Route 87A.

    In July 1943, the 2,560-acre facility was commissioned to instruct student naval aviators. Various types of wastes
    have been generated at the base throughout its history. Through the early 1980s, construction and demolition debris,
    garbage,  waste  solvents and oils, tank bottom sludges,  fuels and machine  fluids were disposed of in different
    locations at the facility.  Solvents have  been used  for cleaning structural metal components prior to repair or
    fabrication, and for stripping paint from aluminum, steel,  and alloys.  The facility does not have a Resource
    Conservation and Recovery Act treatment, storage, and disposal permit, but it is listed as a generator of hazardous
    wastes.         -•*

    Three onsite wells currently supply Whiting Field. On August 28, 1986, the Florida Department of Environmental
    Regulation  requested that one drinking water supply well (W-S2)  be  shut down due to concentrations of benzene
    exceeding the State drinking water standard.  Within one month, the State similarly requested that an additional
    drinking water supply well (W-W3) be shut down due to concentrations of trichloroethylene exceeding State drinking
    water standards. These wells were retrofitted with a charcoal  filter system and subsequently returned to service.
    Approximately 6,500 people  located within 4 miles of the facility obtain their drinking water from ground water.

    The  U.S. Navy has developed a program to monitor and control the  environmental effects of activities involving
    hazardous substances at naval installations.  In accordance with this program. Whiting Field is proceeding  with its
    investigations and cleanup efforts.

    Status (May 1994): The U.S.  Navy, in consultation with EPA and the Florida Department of Environmental
    Protection,  is continuing remedial investigation work at Whiting Field.  The multi-media investigation includes
    studies of ground water, surface water, soils, and wetlands on and around Whiting Field.  In addition, all three base
    supply wells currently have carbon adsorption systems.

    [The description of the site  (release) is based on information'available at the  time the site was  scored.   The
    description may change as additional information is  gathered on the sources  and extent of contamination.  See 56
    FR 5600, February 11, 1991, or subsequent FR notices.]
    Suparfund hazardous waits site listed under me Comprehensive Environmental Response. Compensation, and Liability Act (CERCLA) as amended

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