vvEPA
United States
Environmental Protection
Agency
Solid Waste And
Emergency Response
(5201 G)
SUPERFUND:
EPA/540/R-95/096
PB95-962928
9200.5-726C
May 1995
Progress at
National
Priority
List Sites
MISSOURI
1995 UPDATE
V'-"
Printed on Recycled Paper
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How to Use the NPL Book
The site fact sheets presented in this book
are comprehensive summaries that cover a
broad range of information. The fact sheets
describe hazardous waste sites on the NPL and
their locations, as well as the conditions
leading to their listing ("Site Description").
The summaries list the types of contaminants
that have been discovered and related threats
to public and ecological health ("Threats and
Contaminants"). "Cleanup Approach" pres-
ents an overview of the cleanup activities
completed, underway, or planned. The fact
sheets conclude with a brief synopsis of how
much progress has been made in protecting
public health and the environment. The
summaries also pinpoint other actions, such as
legal efforts to involve polluters responsible
for site contamination and community con-
cerns.
The fact sheets are arranged in alphabetical
order by site name. Because site cleanup is a
dynamic and gradual process, all site informa-
tion is accurate as of the date shown on the
bottom of each page. Progress is always being
made at NPL sites, and the EPA periodically
will update the site fact sheets to reflect recent
actions. The following two pages show a
generic fact sheet and briefly describe the
information under each section.
How Can You Use
This State Book?
You can use this book to keep informed
about the sites that concern you, particu-
larly ones close to home. The EPA is commit-
ted to involving the public in the decision
making process associated with hazardous
waste cleanup. The Agency solicits input from
area residents in communities affected by
Superfund sites. Citizens are likely to be
affected not only by hazardous site conditions,
but also by the remedies that combat them.
Site cleanups take many forms and can affect
communities in different ways. Local traffic
may be rerouted, residents may be relocated,
temporary water supplies may be necessary.
Definitive information on a site can help
citizens sift through alternatives and make
decisions. To make good choices, you must
know what the threats are and how the EPA
intends to clean up the site. You must under-
stand the cleanup alternatives being proposed
for site cleanup and how residents may be
affected by each one. You also need to have
some idea of how your community intends to
use the site in the future, and you need to know
what the community can realistically expect
once the cleanup is complete.
The EPA wants to develop cleanup methods
that meet community needs, but the Agency
only can take local concerns into account if it
understands what they are. Information must
travel both ways in order for cleanups to be
effective and satisfactory. Please take this
opportunity to learn more, become involved,
and assure that hazardous waste cleanup at
"your" site considers your community's
concerns.
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NPL LISTING HISTORY
Provides the dates when the
site was Proposed, made Final,
and Deleted from the NPL.
SITE RESPONSIBILITY
Identifies the Federal, State,
and/or potentially responsible
parties taking responsibility
for cleanup actions at the site.
ENVIRONMENTAL
PROGRESS
Summarizes the actions to
reduce the threats to nearby
residents and the surrounding
environment and the progress
towards cleaning up the site.
SITE NAME
STATE
EPAID# ABCOOOOOOO
Site Description
EPA REGION XX
COUNTY NAME
LOCATION
Other Names:
: xxx xxxxx xxxxxxxxxxxx xxxxxx xxxxxxxxx xxxxxxxx xxxxxxxxxxxxx :
: xxxxxxxxxx xxxx xxxxxxxx xxxx xx xxxxxxxxx xx xxxxxx xxxxxxxx \
: xxx xxxxxxxxxxxxx xx xxxxxx xxxx xxxxx xxxx x xxx :
XXXXXXX XXX XXXX*fcJ(XXXXX XXXXX XXXXXX XXXXXXXX XXXXXXXX XXXX XXXXXXXXXX :
xxxxxxxxxxxx xxxxxxxxx^Siiq^x xxx xx xxxxxxxxx xxxxx xxxx xxxx xxxxx xxxxxxx xxxxxxxx
XXXXXXXX XXXXXXXXX XXXX XXXX^teiiSXXXXX XXXXXXXX XXXXX XXXX XXXXX XXX XXX XXXXXX
xxxxxxxxxxxx xx xxxxxxx xxx xxxxx x5Bb»fcjtxx xxxxxx xx xxxx xxx xxxxx xxx XKXXX xxx xxxxx
Site Responsibility:
xxxxxx xxx xxxxx :
xxxxxx xxxxxxxxx xxxxxxxx
xxxxxxxxxxxxx xxxxxxxxx
NPL Listing History
Proposed. XX/XX/XX
Rnal- XX/XX/XX
Threats and Contaminants
XXXXXX XXX XXXXX XXXXXXXXXXXX XXXXXX XXXXXXXXX XXXXXXXX
XXXXXXXXX XXXXXXXXXXXXX XXXXXXXXXX XXXX XXXXXXXX XXXX XX
XXXXXXXX XXX XXXXXXXXXXXX XXXXX XXX XXXXXXXXXXXXX XX XXXXXX
XXX XXXXXXXXXX XXXXXXXX XXXXXXX XXX XXXXXX XXXXXX XXXXX XXXXXX
XXXXXXXX XXXX XXXXXXXXXX XXXXXXXX XXXXXXXXXXXX XXXXXXXXX XXXX X XXX XX
XXXX XXXX XXXXX XXXXXXX XXXXXXXX XXXXXXXX XXXXXXXXX XXXX XXXX XXXXX XXXX
Cleanup Approach
xxxxxx xxx xxxxx xxxxxxxxxxxx xxxxxx xxxxxxxxx xxxxxxxx xxxxxxxxxxxxx
XXXXXXXXXXXXX XXXXXXXXXX XXXX XXXXXXXX XXXX XX XXXXXXXXX XX XXXXXX XXXXXXXX
XXXXXXXXXXXX XXXXX XXX XXXXXXXXXXXXX XX XXXXXX XXXX XXXXX XXXX X XXX XXXXXXXX
Response Action Status
XXXXXX XXX XXXXX XXXXXXXXXXXX XXXXXX XXXXXXXXX XXXXXXXX :
XXXXXXXXXXXXX XXXXXXXXXX XXXX XXXXXXXX XXXX XX XXXXXXXXX XX :
XXXXXXXXXXXX XXXXX XXX XXXXXXXXXXXXX XX XXXXXX XXXX XXXXX XXXX X :
xxxxxxxx xxxxxxx xxx xxxxxx xxxxxx xxxxx xxxxxx xxxxxxxx xxxxxxxx :
XXXXXXXXXX XXXXXXXX XXXXXXXXXXXX XXXXXXXXX XXXX X XXX XX XXXXXXXXX XXXXX XXXX XXXX XXXXX
xxxxxxx xxxxxxxx xxxxxxxx xxxxxxxxx xxxx xxxx xxxxx xxxx xxxxxxxx xxxxx xxxx xxxxx xxx
XXX XXXXXX XXXXXXXXXXXX XX XXXXXXX XXX XXXXXX XX XXXXXX XXXXXXXX XXX :
Site Facts:
xxxxxx xxx xxxxx xxxxxxxxxxxx xxxxxx xxxxxxxxx xxxxxxxx
XXXXXXXXX XXXXXXXXXXXXX XXXXXXXXXX XXXX XXXXXXXX XXXX XX XXXXXXXXX XX
XXXXXXXXXXXX XXXXX XXX XXXXXXXXXXXXX XX XXXXXX XXXX XXXXX XXXX X XXX
^HXXXXXX XXX XXXXXX
Environmental Progress
XXXXXX XXX XXXXX XXXXXXXXXXXX XXXXXX XXXXXXXXX XXXXXXXX XXXXXXXXXXXXX XXXXXXXXX
XXXXXXXXXXXXX XXXXXXXXXX XXXX XXXXXXXX XXXX XX XXXXXXXXX XX XXXXXX XXXXXXXX XXX
XXXXXXXXXXXX XXXXX XXX XXXXXXXXXXXXX XX XXXXXX XXXX XXXXX XXXX X XXX XXXXXXXXXX
XXXXXXXX XXXXXXX XXX XXXXXX XXXXXX XXX XXXXX XXXXXXXXXXXX XXXXXX XXXXXXXXX XXXXXXXX
Site Repository
XXXXXX XXX XXXXX XXXXXXXXXXXX XXXXXX XXXXXXXXX XXXXXXXX XXXXXXXXXXXXX XXXXXXXXX
SITE REPOSITORY
Lists the location of the primary site repository. The site
repository may include community relations plans, public
meeting announcements and minutes, fact sheets, press
releases, and other site-related documents.
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SITE DESCRIPTION
This section describes the location and history of the site. It includes descrip-
tions of the most recent activities and past actions at the site that have con-
tributed to the contamination. Population estimates, land usages, and nearby
resources give readers background on the local setting surrounding the site.
THREATS AND CONTAMINANTS
The major chemical categories of site contamination are noted, as well as
which environmental resources are affected. Icons representing each of the
affected resources (may include air, groundwater, surface water, soil, and
contamination to environmentally sensitive areas) are included in the margins
of this section. Potential threats to residents and the surrounding environ-
ments arising from the site contamination also are described.
CLEANUP APPROACH
This section contains a brief overview of how the site is being cleaned up.
RESPONSE ACTION STATUS
Specific actions that have been accomplished or will be undertaken to clean
up the site are described here. Cleanup activities at NPL sites are divided
into separate phases, depending on the complexity and required actions at the
site. Two major types of cleanup activities often are described: initial,
immediate, or emergency actions to quickly remove or reduce imminent
threats to the community and surrounding areas; and long-term remedial
phases directed at final cleanup at the site. Each stage of the cleanup strategy
is presented in this section of the summary. Icons representing the stage of
the cleanup process (initial actions, site investigations, EPA selection of the
cleanup remedy, engineering design phase, cleanup activities underway, and
completed cleanup) are located in the margin next to each activity descrip-
tion.
SITE FACTS
Additional information on activities and events at the site are included in this
section. Often details on legal or administrative actions taken by the EPA to
achieve site cleanup or other facts pertaining to community involvement with
the site cleanup process are reported here.
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Guide to the NPL Book Icons
The "icons," or symbols, accompanying the text allow the reader to see at a glance which envi-
ronmental resources are affected and the status of cleanup activities at the site.
Icons in the Threats
and Contaminants
Section
Icons in the Response
Action Status Section
Contaminated Groundwater re-
sources in the vicinity or underlying
the site. (Groundwater is often used
as a drinking water source.)
Contaminated Surface Water and
Sediments on or near the site.
(These include lakes, ponds,
streams, and rivers.)
Contaminated Air in the vicinity of
the site. (Air pollution usually is
periodic and involves contaminated
dust particles or hazardous gas
emissions.)
Contaminated Soil and Sludges on
or near the site. (This contamination
category may include bulk or other
surface hazardous wastes found ori
the site.)
Threatened or contaminated Envi-
ronmentally Sensitive Areas in the
vicinity of the site. (Examples
include wetlands and coastal areas
or critical habitats.)
Initial, Immediate, or Emergency
Actions have been taken or are
underway to eliminate immediate
threats at the site.
Site Studies at the site to determine
the nature and extent of contamina-
tion are planned or underway.
Remedy Selected indicates that site
investigations have been concluded,
and the EPA has selected a final
cleanup remedy for the site or part
of the site.
Remedy Design means that engi-
neers are preparing specifications
and drawings for the selected
cleanup technologies.
Cleanup Ongoing indicates that the
selected cleanup remedies for the
contaminated site, or part of the site,
currently are underway.
Cleanup Complete shows that all
cleanup goals have been achieved
for the contaminated site or part of
the site.
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EPA ID
Number Site Name
MOD980860522 BEE CEE MANUFACTURING CO.
MOD981126899 BIG RIVER MINE TAILINGS/ST. JOE MINERALS
MOD000829705 CONSERVATION CHEMICAL CO.
MOD980633010 ELLISVILLE SITE
MOD980631139 FULBRIGHT LANDFILL
MOD980631113 KEM-PEST LABORATORIES
MO3213890012 LAKE CITY ARMY AMMUNITION PLANT (NORTHWEST LAGOON)
MOD980853519 LEE CHEMICAL
MOD980741912 MINKER/STOUT/ROMAINE CREEK
MOD980965982 MISSOURI ELECTRIC WORKS
MOD007163108 NORTH-U DRIVE WELL CONTAMINATION
MOD980686281 ORONOGO-DUENWEG MINING BELT
MOD980860555 QUALITY PLATING
MOD980685838 SHENANDOAH STABLES
MOD980854111 SOLID STATE CIRCUITS, INC.
MOD980633176 ST LOUIS AIRPORT/HIS/FUTURA COATINGS CO.
MOD007452154 SYNTEX FACILITY
MOD980685226 TIMES BEACH SITE
MOD980968341 VALLEY PARK TCE
MO3210090004 WELDON SPRING QUARRY/PLANT/PITTS (USDOE)
M05210021288 WELDON SPRING FORMER ARMY ORDNANCE WORKS
MOD079900932 WESTLAKE LANDFILL
MOD000830554 WHEELING DISPOSAL SERVICE CO. LANDFILL
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BEE CEE
MANUFACTURI
MISSOURI
EPA ID# MOD980860522
EPA REGION 7
Dunklin County
City of Maiden
Site Description
The former owners of the Bee Cee Manufacturing Co., a 2-acre site in Maiden's industrial park,
manufactured aluminum storm windows and doors from 1964 to 1983. Workers discharged
chromium-contaminated wastewater directly onto the ground without any treatment or an EPA-
approved permit. An area about 50 feet by 100 feet is visibly affected, possibly to a depth of 1 or
2 feet. In 1981, the State advised the owners that their disposal practices put them in violation of
the Missouri Clean Water Law. Bankruptcy proceedings ended the State's efforts to have the
owners install a wastewater treatment system. Another company now leases the building, and the
City of Maiden owns the contaminated land. Four shallow wells and two deep wells in Maiden
supply drinking water for 11,500 people; one shallow well is about 1,000 feet southwest of the
site. Approximately 8,500 people live within a 3-mile radius of the site; 60 live within 1 mile.
The closest residence is 1/4 mile away from the site. Fifteen wells lie within 1 mile of the site,
and 150 wells are within 3 miles. A low-income nursing home project located 1/2 mile south of
the site is of particular concern.
Site Responsibility:
This site is being addressed through
Federal and State actions.
NPL LISTING HISTORY
Proposed Date: 10/15/84
Final Date: 06/10/86
Threats and Contaminants
Groundwater and on-site soils are contaminated with chromium and aluminum. Private
wells hi the vicinity used for watering livestock and irrigating crops have been
contaminated since 1984. Groundwater contamination has been demonstrated in a
shallow aquifer well about 1/2 mile from the site. The public wells, 2 miles
downgradient from the site, may be connected to die contaminated aquifer. People
who have direct contact With the contaminated soils Or drink contaminated
groundwater are at risk. Local soils are sandy, which makes it easier for contaminants
to enter the groundwater.
December 1994
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Cleanup Approach
The site is being addressed in two stages: initial actions and a long-term phase addressing
groundwater cleanup.
Response Action Status
Initial Action: In 1992, the EPA removed the contaminated soil from the site.
Groundwater: The State is conducting an investigation of the nature and extent of
contaminated groundwater. These investigations, which will lead to the selection of a
final cleanup remedy, are scheduled for completion in 1995.
Environmental Progress
The EPA has removed the contaminated soil from the site. State investigations have shown that
contaminated groundwater has not moved off site and does not pose a threat to people or the
environment, while further studies leading to the selection of a cleanup remedy for on-site
groundwater are being conducted.
Site Repository
Maiden Branch - Dunklin County Library, 113 N. Madison, Maiden, MO 63863
December 1994
BEE CEE MANUFACTURING CO.
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BIG RIVER MINE
TAILINGS/ST. JO
MINERALS CORP.
MISSOURI
EPA ID# MOD981126899
EPA REGION 7
St. Francois County
Desloge
Site Description
The Big River Mine Tailings/St. Joe Minerals Corp. site is located in a former mining region
known as the "Old Lead Belt", which is 70 miles south of St. Louis. Numerous tailings ponds
and piles are found in this rural region, approximately 110 square miles in size. From 1929 to
1958, mine tailings rich with lead, cadmium, and zinc were disposed of at the 600-acre Big River
Mine Tailings area by the St. Joe Minerals Corp. Three sides of this site are bounded by Big
River. In 1972, St. Joe Minerals Corp. donated 502 acres of land in the area to St. Francois
County. In 1973, St. Francois County Environmental Corp. (SFCEC) leased approximately 60
acres of the southern portion of the tailings pile from the county to operate a sanitary landfill; the
landfill is no longer in operation. A transfer station and recycling center is now located on site.
In 1977, heavy rains caused an estimated 50,000 cubic yards of tailings to slump into Big River.
In 1981, St. Joe Minerals Corp. made an attempt to stabilize the tailings. Elevated levels of lead
were first detected in bottom-feeding fish by the Missouri Department of Conservation, and then
in 1982 in surface water by the Columbia National Fisheries Research Laboratory. Local
residents were advised not to eat the fish. Big River is used for recreational purposes such as
fishing, as well as for commercial activities such as watering livestock. Approximately 23,000
people reside within 4 miles of the site.
Site Responsibility:
This site is being addressed through
Federal actions.
NPL LISTING HISTORY
Proposed Date: 02/07/92
Final Date: 10/14/92
Threats and Contaminants
Elevated levels of lead, cadmium, and zinc have been detected in the tailings pile.
Surface water and various forms of biota in Big River contain elevated concentrations
of lead. Wind erosion and airborne dust have contaminated the surrounding air and
are a potential hazard to on-site workers, residents, and children at a nearby day care
center. People on site risk being exposed to contaminants in the soil.
December 1994
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Cleanup Approach
The site is being addressed in two stages: initial actions and a long-term remedial phase focusing
on cleanup of the entire site.
Response Action Status
Initial Actions: The parties potentially responsible for site contamination have
begun in place stabilization of the pile, designed to keep the pile from sloughing into
the river. Other activities that will be performed include the revegetating of the area
to control contaminant run-off, covering the site with a soil and clay cap, and vegetating the cap.
Entire Site: Investigations to determine the nature and extent of contamination are
being conducted and are scheduled for completion in early 1996. Following the
investigations, a remedy for final site cleanup will be selected.
Site Facts: An Administrative Order on Consent was signed in mid-1994 by the SFCEC and the
Doe Run Company, requiring them to conduct removal activities at the site.
Environmental Progress
Stabilizing die pile, covering the site with a clay cap, and revegetating the area has reduced the
potential for exposure to site contaminants at the Big River Mine Tailings/St. Joe Minerals Corp.
site while investigations are underway and activities are being planned for cleanup of the site.
Site Repository
Desloge Public Library, 209 N. Desloge Drive, Desloge, MO 50613
December 1994
BIG RIVER MINE TAILINGS/
ST. JOE MINERALS CORP.
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CONSERVATI
CHEMICAL CO.
MISSOURI
EPA ID# MOD000829705
EPA REGION 7
Jackson County
x^3900 Front Street, Kansas City
Other Names:
CCC
Site Description
The Conservation Chemical Company site, located in eastern Kansas City, operated as a chemical
storage and disposal facility from 1960 until 1980. The owners began waste disposal operations
almost immediately after building chemical treatment basins, a process area, and a roadway
ramp. Waste disposal basins, which either were unlined or poorly lined, were used to store and
receive wastes, and also served as drying beds and containers for by-product sludges. Many
operating records were destroyed in a 1970 fire; those records that survived listed organic
chemicals, solvents, acids, caustics, metal hydroxides, and cyanide compounds as some of the
materials accepted for disposal at the site. Reports also indicate that pesticides, herbicides, waste
oils, organic solvents, halogenated compounds, arsenic, and elemental phosphorus were handled
by the facility, as well as pressurized cylinders and other metal containers placed in the lagoons.
Information is incomplete, but it is estimated that the facility handled at least 48,000,000 gallons
of liquids and sludges and 1,144 tons of solids. About 93,000 cubic yards of materials including
drums, bulk liquids, sludges, and solids were buried at the site. By-products from any treatment
processes used on the waste materials also were dumped on site. An attempt was made to
neutralize hazardous chemicals by blending some wastes and to stabilize the upper waste layers
on the site by mixing acidic metal finishing wastes with fly ash and certain sludges, which
produced a mixture consisting largely of gypsum. In 1977, the Missouri Clean Water
Commission ordered the site closed and covered, and the owner covered the soil caps with
gypsum. The site is located in the 100-year flood plain of the Missouri River, about 500 feet
away from its banks, and near its confluence with the Little Blue River. The site itself was raised
about 10 feet above the surrounding area, but most of it would be immersed during a flood.
Private wells provide drinking water to approximately 120 people within 3 miles of the property.
The Courtney Bend well field is downstream from the site; it supplies drinking water to the City
of Independence, which is 5 miles from the site.
Site Responsibility:
This site is being addressed through
Federal and potentially responsible
parties' actions.
NPL LISTING HISTORY
Proposed Date: 04/10/85
Final Date: 10/04/89
November 1994
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Threats and Contaminants
Groundwater both on and off the site contains heavy metals including arsenic,
cadmium, chromium, and lead; cyanide; phenolic compounds; and volatile organic
compounds (VOCs) including benzene, chloroform, and toluene. Surface and
subsurface soil on the site contained all of the above, as well as dioxins and
poly chlorinated biphenyls (PCBs). Contaminants were entering the Missouri River via
groundwater that feeds the river. The Missouri River is used locally and regionally for
recreation, industry, irrigation, and as a municipal water supply. People on or near
the site may have been exposed by coming in direct contact with contaminated soils or
eating food grown in contaminated soil or game that feeds on contaminated plants
before site cleanup.
Cleanup Approach
Response Action Status
Entire Site: The EPA selected a remedy for this site in 1987. It featured the
following source control and groundwater cleanup measures: surface cleaning
including demolition and disposal of existing buildings, tanks, and debris and placing
them in an on-site cap; installing a withdrawal well system designed to keep groundwater from
moving away from the site; building a groundwater extraction and treatment system to remove
contaminants; and monitoring the quality and level of off-site groundwater. The surface cleanup
began in early 1989 and was completed by August 1989. Installation of the well networks was
started in 1989 and was completed in early 1990. Construction of the treatment plant began in
1989 and was completed in March 1990. The groundwater extraction system will be in operation
for 30 years, after which the EPA will evaluate if cleanup goals have been met.
Site Facts: In November 1982, the United States filed suit against the parties it deemed
responsible for the site contamination; these defendants in turn sued a host of other potentially
responsible parties in 1984. By August 1985, the defendants had agreed to design and conduct a
cleanup on the site that included the construction of a slurry wall and to reimburse the
Government for its costs to date. However, new information about the expense and construction
difficulty associated with the slurry wall caused a delay in actions. After additional negotiations,
the potentially responsible parties agreed to perform a cleanup based on hydraulic control through
extraction wells.
Environmental Progress
Construction of the remedies selected by the EPA to clean up the Conservation Chemical site has
been completed. These actions have eliminated surface contamination and have halted further
pollution of surface and groundwater resources. The EPA and the potentially responsible parties
are actively monitoring the effectiveness of the continuing groundwater cleanup.
November 1994 2 CONSERVATION CHEMICAL CO.
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Site Repository
Mid-Continent Public Library, 317 W. Highway 24, Independence, MO 64050
CONSERVATION CHEMICAL CO.
November 1994
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Threats and Contaminants
Soil is contaminated with dioxin and volatile organic compounds (VOCs) at the Bliss
properties. Soils at the Callahan and Rosalie properties contain VOCs. Potential health
risks exist through the airborne migration of contaminated fugitive dusts and the
potential for leachate migrating into the groundwater.
Cleanup Approach
The site is being addressed in three stages: immediate actions and two long-term remedial phases
directed at cleanup of the Callahan and Rosalie subsites and the Bliss subsite, which includes four
adjacent contaminated properties.
Response Action Status
Immediate Actions: In 1981, the State removed, covered, and overpacked drums;
took samples; and staged the drums from the Callahan subsite. Workers posted signs
and the State maintained 24-hour security at the site. Excavation activities revealed
up to 1,000 drums buried on the site. In early 1982, EPA emergency workers performed the
following activities: posted additional warning signs; drained and sealed the farm pond; built
runoff control and leachate interception trenches; excavated and overpacked buried drums;
sampled and sorted drums; built an on-site storage area; and removed and disposed of
contaminated soil. In late 1984, drums and other wastes were delivered to an incinerator in
Illinois for disposal. In 1990, the EPA steam-cleaned some drum fragments on the site and
constructed a fence to restrict site access. In 1992, the EPA performed maintenance on the
synthetic cover in the creek bank at the Bliss subsite.
Callahan and Rosalie Subsites: The EPA selected a remedy for the Callahan and
Rosalie properties hi 1985. The Callahan property cleanup remedy includes:
controlling erosion and slippage of the fill area where drums had been excavated from
1980 to 1981 and removing what remained of that cleanup; removing and disposing of the plastic
cover and hold-down blocks from the fill area; regrading the fill to a more stable slope, covering
it with a compacted soil layer, and reseeding; and removing and salvaging fences and gravel from
the former drum-storage areas. The Rosalie subsite cleanup remedy includes: excavating
contaminated soil from two locations and removing it to an EPA-approved hazardous waste
facility; placing debris in drums; excavating and overpacking buried drums and sampling and
testing their contents; disposing of drums at an EPA-approved disposal facility; testing soil to
verify the effectiveness of the cleanup; and backfilling excavated areas with clean soil and
reseeding disturbed areas. Under State supervision, cleanup at the Rosalie property was
completed. The design of the technical specifications for the cleanup of the Callahan property
subsite was completed in early 1991, and cleanup activities are expected to be completed soon.
December 1994 2 ELLISVILLE SITE
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Bliss and Adjacent Properties: During the investigation of the Bliss property
subsite, contamination was discovered on four neighboring parcels: the Dubman and
Weingart property, Primm property, Wade and Mercantile Trust Company property,
and the Russell, Evelyn, and Jerry Bliss property. The EPA selected a remedy for these
properties in 1986. The first part of the cleanup focuses on dioxin-contaminated soils; the second
entails excavation and off-site disposal of buried drums and materials contaminated with
chemicals other than dioxin. The Bliss/contiguous properties soils cleanup remedy selected in
1986 includes: excavating dioxin-contaminated soils and containerizing them; storing the
containers of waste temporarily in a metal building on the site; and maintaining security,
controlling surface drainage at the site, and sampling the groundwater. The drum and other
cleanup remedies include: excavating, sampling, and overpacking buried drums; excavating
hazardous wastes and contaminated soils and materials; taking drums and waste mixtures suitable
for land disposal to an appropriate EPA-approved facility; incinerating drums and waste mixtures
unsuitable for land disposal off site at an EPA-approved facility; and disposing of non-hazardous
material and debris at a permitted sanitary landfill. For both components of this remedy, site
restoration activities will include backfilling, regrading, and seeding, where needed. In late 1991,
the EPA issued an amended cleanup remedy for the dioxin-contaminated materials at the Bliss
subsite. Under this remedy, interim storage of dioxin-contaminated material was eliminated.
Instead, these materials will be excavated and transported directly to the nearby Times Beach
site, where contaminated materials will be destroyed by thermal treatment. A permit application
is currently being reviewed for operation of the temporary thermal treatment unit at Times Beach.
Environmental Progress
All contaminated materials have been removed from the Rosalie subsite. Cleanup of the Callahan
subsite is underway. The perimeter fence installed at the Bliss subsite has controlled
unauthorized access to this portion of the site, thereby reducing the potential for direct contact
with contaminated soils while final cleanup activities are being planned.
Site Repository
EPA Information Trailer, 1-44, Lewis Exit, Times Beach, MO 63025
ELLISVILLE SITE 3 December 1994
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FULBRIGHT
LANDFILL
MISSOURI
EPA ID# MOD980631139
EPA REGION 7
Greene County
3 miles north of Springfield
Other Names:
Springfield Fulbright Landfill
Sac River Landfill
Murray Landfill
Highway 13 Landfill
Site Description
The 212-acre Fulbright Landfill site consists of the Fulbright and Sac River Landfills (formerly
known as the Murray Landfill). The City of Springfield used these landfills, both of which now
are closed, for the disposal of municipal and industrial wastes. The 98-acre Fulbright Landfill
accepted waste from 1962 through 1968. The 114-acre Sac River Landfill operated from 1968
until 1974. Industrial wastes disposed of in these landfills included cyanides, acids, plating and
paint sludges, pesticide residues, waste oil, and solvents. The contents of between 1,200 and
2,600 drums were dumped into pits at the site with the empty 55-gallon drums left in the pits or
in the general landfill areas. In 1967, a waste hauler died from toxic fume inhalation when he
inadvertently dumped a drum of acid into a pit containing cyanide. A sinkhole on the bluff above
the Fulbright Landfill contained a few dozen drums and waste residues. An estimated 10,000
people live within a 3-mile radius of the site. The landfill lies in a semi-rural area in the flood
plain of the Little Sac River. Surrounding land use includes a police shooting range, a dog
pound, an active wastewater treatment plant, and an inactive wastewater treatment plant. The
local drinking water supply is drawn from a municipal well and a lake upgradient of the site.
Groundwater also is used for crop irrigation and industrial processes. The nearest population and
well are 1,000 feet upgradient of the landfills.
Site Responsibility:
This site has been addressed through
Federal and potentially responsible
parties' actions.
NPL LISTING HISTORY
Proposed Date: 10/23/81
Final Date: 09/08/83
Threats and Contaminants
The groundwater and drums on the site contained a wide variety of volatile organic
compounds (VOCs) and other organic chemicals, as well as heavy metals and cyanide
from former waste disposal practices. Chromium was found in sediments.
Groundwater flows into the adjacent Sac River, which also receives treated municipal
wastewater. Since the landfill is in the flood plain of the Little Sac River, high waters
may have spread site contaminants.
December 1994
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Cleanup Approach
Response Action Status
Entire Site: Under EPA oversight, the parties potentially responsible for the site
contamination completed an extensive study of the site in 1988. The following
remedies were selected for the site: removing drums and drum remnants from the
sinkhole and the associated trench east of the Fulbright Landfill; sampling drum contents to
establish the hazardous nature of their contents; disposing of the removed contents at an off-site
EPA-approved facility; performing groundwater and surface water monitoring for a 30-year
maintenance period; monitoring the leachate that occasionally seeps from the landfill during this
period to determine if future action is warranted to curtail it; and imposing deed restrictions to
prevent future development on the site and groundwater use prohibitions. The cleanup activities
began in 1990 and were completed in early 1992. Groundwater and surface water monitoring
began in 1992 and will continue for 30 years to ensure the effectiveness of the remedies.
Site Facts: In March 1986, the EPA issued a Consent Order to the City of Springfield, Litton
Industries, Inc., and Litton Business Systems, Inc., which had all been identified as potentially
responsible parties. The Order required them to conduct an extensive site investigation under the
EPA's oversight. In January 1990, the EPA issued a Consent Decree for the potentially
responsible parties to design the selected remedies and to conduct cleanup activities at the site.
Environmental Progress
All construction at the site is complete. The removal and disposal of contaminated soils from the
sinkhole and trench area has eliminated the threat of exposure to contamination at the Fulbright
Landfill. Restrictions on land and groundwater use and continual groundwater and surface water
monitoring will ensure that there is no potential future risk to human health or the environment.
Site Repository
Springfield/Greene County Library, 397 E. Central, Springfield, MO 65801
December 1994
FULBRIGHT LANDFILL
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KEM-PEST
LABORATORIES
MISSOURI
EPA IDSMOD980631113
EPA REGION 7
Cape Girardeau County
Near Cape Girardeau
Site Description
The Kern-Pest Laboratories site covers 6 acres and is located near Cape Girardeau. Beginning in
1965, Kern-Pest formulated various pesticide products, including liquid pesticides, granular
insecticides, granular herbicides, and pesticide dust. The company suspended operations in 1975.
There have been no production, treatment, or disposal activities at the site since 1977. A building
on site has been used to store equipment and materials. A 1,250-square-foot lagoon at the facility
formerly was used to dispose of plant waste and sewage. When the company closed the lagoon in
1981, it was filled with compacted clay. An EPA inspection in 1983 revealed that the lagoon
cover was eroding and that no vegetation existed on the clay cap. Cape Girardeau, with a
population of 60,925, draws drinking water from the Mississippi River, located less than a mile
downstream of the site. Approximately 200 people live within a mile of the site, and 1,284 live
within 3 miles. The site is adjacent to the flood plain of the Mississippi River. A freshwater
wetland is located within a mile of the site.
Site Responsibility:
This site is being addressed through
Federal aid potentially responsible
parties' actions.
NPL LISTING HISTORY
Proposed Date: 01/22/87
Final Date: 10/04/89
Threats and Contaminants
IT
Sampling in 1984 and 1989 detected pesticides including heptachlor, chlordane and
endrin in me shallow aquifer. Drainage channel sediments contained pesticides
including aldrin and dieldrin. Pesticides and various volatile organic compounds
(VOCs) were detected in subsurface and surface soil samples. Potential risks may
exist for those who come in direct contact with the contaminated building structures or
the soil on the site.
November 1994
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Cleanup Approach
The site is being addressed in two long-term remedial phases focusing on cleanup of the soil and
sediments, and cleanup of the groundwater and the contaminated on-site structure.
Response Action Status
Soil and Sediments: In 1984, the EPA installed five monitoring wells on site and
collected groundwater, soil, and sediment samples. In 1988 and 1989, the EPA and
the parties potentially responsible for site contamination conducted additional
sampling. The EPA has excavated approximately 6,075 cubic yards of contaminated soil and
sediment and has disposed of them at a federally approved off-site land disposal facility.
Sampling was conducted to confirm that all soils contaminated above health based levels were
removed. Clean soil has been placed in the excavated areas with vegetation to minimize erosion.
These cleanup activities were completed in 1993.
Groundwater and On-Site Structure: In 1990, a remedy was selected to address
this portion of the site. The EPA concluded that the groundwater did not require any
cleanup activities, but monitoring would continue to ensure that the groundwater
continues to meet safety standards. The remedy to address the contaminated building structure
includes decontamination of the building and off-site incineration of the debris in a federally
approved facility. In 1993, EPA amended the remedy to include demolition of the building. This
remedy is currently on hold pending review of the decision.
Environmental Progress
The excavation and disposal of contaminated soil and sediment at the Kern-Pest Laboratories site
has reduced the threat of exposure to hazardous materials to the nearby population while further
cleanup activities are being planned.
Site Repository
Cape Girardeau Public Library, 711 N. Clark Street, Cape Girardeau, MO 63701
November 1994 2 KEM-PEST LABORATORIES
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LAKE CITY AR
AMMUNITION
(NORTHWEST
LAGOON)
MISSOURI
EPA ID# MO3213890012
Site Description
EPA REGION 7
Jackson County
Independence
The Lake City Army Ammunition Plant (LCAAP) occupies approximately 4,000 acres. LCAAP
has manufactured, stored, and tested small arms ammunition continuously since 1941, except for
a five year period following World War n. Virtually all waste treatment and disposal has been
on site. LCAAP has relied heavily on lagoons, landfills, and burn pits for waste disposal.
Industrial operations have generated large quantities of potentially hazardous waste including oils,
greases, solvents, explosives, and metals. There are 11 residences or die grounds served by
LCAAP's water treatment plant. Adjacent to the northern boundary of the site is Lake City, with
a population of approximately 50 people. Private residences off site use groundwater from private
wells. There are 13 production wells that supply water for base personnel. The Missouri River
and Little Blue River, located near the site, are used for recreational activities.
Site Responsibility:
This site is being addressed through
Federal actions.
NPL LISTING HISTORY
Proposed Date: 10/15/84
Final Date: 07/22/87
Threats and Contaminants
Groundwater beneath the site, soil, and surface water are contaminated with volatile
organic compounds (VOCs), various explosives, and heavy metals including lead,
arsenic, and chromium from former waste disposal practices. Potential threats exist
for those who accidentally have direct contact with or ingest contaminated
groundwater, surface water, or soil. Water supplies for on-site personnel and on-site
residences' are provides from a water treatment plant at the site.
Cleanup Approach
This site is being addressed in five stages: immediate actions and four long-term remedial phases
focusing on cleanup of the installation-wide area, the northeast corner, Area 18 and Area 8.
November 1994
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Response Action Status
Immediate Actions: Four air strippers were installed in the plant's drinking water
supply facilities to remove contaminants before reaching the water treatment plant.
LCAAP also is continuing to monitor contaminant migration in accordance with the
approved Groundwater Monitoring Plan.
Installation-Wide Area: The Army initiated an investigation in 1987 to determine
the extent and type of contamination on site and to identify alternative technologies for
the cleanup. The study confirmed contamination of the groundwater beneath the entire
site and identified several source areas of concern with respect to potential environmental
contamination. In 1991, the investigation was expanded and identified additional source areas.
Additional fieldwork was completed in 1992, and final investigations are scheduled to be
completed in early 1996.
Northeast Corner: The Army initiated an investigation in 1990 to determine the
extent and type of contamination present in the northeastern corner. Following review
of the preliminary data, the Army determined that additional field work was required.
The final investigation is scheduled to be completed in 1996.
Area 18: Previous environmental data from die installation-wide site investigation
indicate this site has contaminated the soil and groundwater at LCAAP. An
investigation of Area 18, which will provide additional information needed to
determine the magnitude and extent of contamination, was begun in 1992 and is scheduled for
completion in 1996.
Area 8: Previous sampling activities have identified contamination of the soil and
groundwater in Area 8. Additional information is needed to characterize the nature
and extent of the contamination. Investigations are scheduled to continue until 1999.
Site Facts: The plant is participating in the Installation Restoration Program, a specially funded
program established by the DOD in 1978 to identify, investigate, and control the migration of
hazardous contaminants at military and other DOD faculties. An Interagency Agreement (IAG)
between the EPA, the Army, and the State of Missouri was signed in 1989, covering me
remaining investigative, design, and cleanup activities throughout the installation.
Environmental Progress
The installation of air strippers, closure of lagoons, and the LCAAP water treatment plant has
greatly reduced the potential for exposure to hazardous substances at the Lake City Army
Ammunition Plant (Northwest Lagoon) site while further investigations leading to final cleanup
activities are taking place.
November 1994 2 LAKE CITY ARMY AMMUNITION PLANT
(NORTHWEST LAGOON)
-------
Site Repository
Mid-Continent Public Library-South, Blue Springs, MO
Lake City Army Ammunition Plant, Independence, MO
LAKE CITY ARMY AMMUNITION PLANT
(NORTHWEST LAGOON)
November 1994
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CHEMICAL
MISSOURI
EPA ID# MOD980853519
EPA REGION 7
Clay County
3 miles southeast of Liberty
Other Names:
Liberty Public Water Supply
Site Description
The 1-acre Lee Chemical site was used for packaging a variety of chemicals from 1966 until
1974, when Lee Chemical abandoned the facility. City officials found several hundred drums of
chemicals on site in 1976, most of which were removed by the City in 1977. Although the City,
which owns the property, has removed the building and visible contamination from the site and
taken soil samples, analyses indicate that trichloroethylene (TCE) is still present on the site.
During a drinking water study in 1980, the EPA sampled the city's water wells and found TCE.
Since then, the most contaminated wells have not been used for drinking water. The water from
the remaining wells no longer contains detectable levels of TCE. There are approximately 24,000
people living within a 3-mile radius of the site. The nearest residence is approximately 1/4 mile
from the site. The City's drinking water supply wells are 1/4 mile away from the site;
abandoned, unplugged drinking water supply wells are also on the site. There are several
irrigation wells near the site. Industrial and commercial facilities near the site use groundwater
for cooling or process water.
Site Responsibility:
The site is being addressed through
Federal, State, and City actions.
NPL LISTING HISTORY
Proposed Date: 10/15/84
Final Date: 06/10/86
Threats and Contaminants
The groundwater, surface water, and soil are contaminated with TCE. Contaminated
groundwater, surface water, and soil could adversely affect the health of individuals
through direct contact or ingestion. In addition, bioaccumulation of contaminants in
fish, water fowl, livestock, and commercial agricultural products may be another
exposure pathway. The Town Branch of the Shoal Creek is located approximately
2,000 feet downslope from the site and receives contaminated water discharged from
one city well and an on-site extraction well. The creek empties into the Missouri
River about 1 mile downstream.
November 1994
-------
Cleanup Approach
Response Action Status
Immediate Actions: The City removed several hundred barrels of chemicals and
arranged to clear the land surrounding the old treatment plant left by Lee Chemical.
In 1983, a contractor working for the City demolished the plant, cleared the site, and
disposed of the waste material. The City has monitored the well water and drinking water and
has managed the use of supply wells to eliminate TCE in the drinking water. The City installed
two new supply wells in 1982.
Entire Site: The City completed a study of the extent and nature of the
contamination in 1990. Following a public comment period, the EPA selected a
remedy, which includes installation of a more efficient purge well on site and
continuation of the interim action requiring discharge of extracted groundwater to a nearby creek.
In-situ aqueous soil flushing is being used through the installation of an infiltration field on site.
Construction was completed in early 1994 and the system is in full operation.
Site Facts: The State of Missouri and the City of Liberty signed a Consent Order in March
1992. Under the terms of the order, the City will be responsible for the design and
implementation of cleanup activities under State supervision.
Environmental Progress
Construction at the site was completed in early 1994. Removing contaminated barrels from the
site and monitoring well water have reduced the potential for exposure to hazardous substances at
the Lee Chemical site while soil flushing activities are being completed.
IS
Site Repository
Liberty Public Library, 1000 S. Kent, Liberty, MO 64048
November 1994 2 LEE CHEMICAL
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MINKER/STOU1
ROMAINE CREE
MISSOURI
EPA ID# MOD980741912
Site Description
EPA REGION 7
Jefferson County
Near Imperial
The Minker/Stout/Romaine Creek site covers about 10 acres of non-contiguous properties near
Imperial. In the early 1970's, the Bubbling Springs Ranch horse arena was sprayed with dioxin-
contaminated oil for dust control. Afterward, several horses became ill, and seven died. The
horse arena was excavated in 1972, and the diem-contaminated soil was used as fill material in
residential areas, including the Minker, Stout, Cashel, and Sullins residences. Much of the fill
from the Minker residence eroded into Romaine Creek. In 1983, the EPA detected dioxin in the
soil on site and in sediments of Romaine Creek. Approximately 500 people live within 1 mile of
the site. The sediments of Romaine Creek were contaminated as far as 6,000 feet downstream;
however, the creek was not used as a drinking water source.
Site Responsibility: This site is being addressed through
Federal actions.
NPL LISTING HISTORY
Proposed Date: 12/30/82
Final Date: 09/08/83
Threats and Contaminants
The sediments and soil from Romaine Creek were contaminated with dioxin from the
soil mat was used as fill in the residential areas. People who came into direct contact
with or accidentally ingested the contaminated soil or sediments were at risk. The fish
of Romaine Creek may pose a health hazard if eaten.
Cleanup Approach
This site is being addressed in five stages: immediate actions and four long-term remedial phases
focusing on final treatment of contaminated soil, cleanup of Romaine Creek, cleanup of the Stout
area, and relocation activities.
December 1994
-------
Response Action Status
Immediate Actions: Between 1985 and 1989, the EPA excavated about 12,000
cubic yards of soil at the Minker area, the Sullins and Cashel residences, Romaine
Creek, and the Stout area. The soil was placed in steel storage structures at the
Minker area.
Soil: The EPA selected a remedy to clean up the soil, which includes thermally
treating previously-excavated contaminated soils from this site at the Times Beach
site, another dioxin-contaminated site. The soil will be incinerated, which
permanently removes the contaminants. The ash from the incinerator will be disposed of on the
Times Beach site. The design of the final remedy was completed in coordination with the remedy
design for the Times Beach site. A permit application for thermal treatment activities at Times
Beach is currently under review. Once approved, contaminated soil will be removed to the Times
Beach site for final treatment.
Romaine Creek: In 1987, the EPA selected a remedy to clean Romaine Creek,
which included excavating the contaminated soil and sediments and temporarily
storing them in steel structures on site. The excavated areas were backfilled with clean
material suitable for a natural creek. In 1989, the EPA completed the excavation and storage of
contaminated materials.
Stout Area: In 1987, the EPA selected a remedy to clean the Stout property, which
included excavating the contaminated soil and placing it in interim on-site storage.
The EPA completed excavation and storage activities at the Stout property in 1988.
Relocation: In 1983, the EPA permanently relocated 12 families. Two other families
temporarily were relocated by the State during excavation of the Minker area; they
have been returned to their residences.
Site Facts: Under the terms of a Consent Decree entered in Federal Court in December 1990,
several settling defendants were given the responsibility for operating a thermal treatment unit at
the Times Beach site for treatment of all contaminated materials excavated from the
Minker/Stout/Romaine Creek site. The EPA is responsible for transporting the soils from these
areas to the Times Beach site for treatment.
Environmental Progress
The relocation of affected residents and the excavation and temporary storage of contaminated
soils and sediments from all portions of the site have reduced the potential for exposure to
hazardous materials at the Minker/Stout/Romaine Creek site white the EPA awaits removal of the
wastes to the Times Beach site for final treatment.
December 1994 2 MINKER/STOUT/ROMAINE CREEK
-------
Site Repository
EPA Information Trailer, 1-44, Lewis Exit, Times Beach, MO 63025
MINKER/STOUT/ROMAINE CREEK
December 1994
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MISSOURI ELECT
WORKS
MISSOURI
EPA ID# MOD980965982
EPA REGION 7
Cape Girardeau County
Cape Girardeau
Site Description
Missouri Electric Works, located on mis 6 1/2-acre site, has been in operation at its present
location since 1953 and sells, services, and reconditions electric motors, transformers, and
transformer controls. In addition, it recycles transformer oil and copper wire. The transformer oil
was filtered and reused, with about 90 percent being salvaged. The remaining waste oil either
was sold to local residents for dust control purposes, disposed of by a contractor, or simply was
allowed to leak or spill onto the ground around the facility. Some waste oil reportedly was
burned on site. The total amount of waste oil generated was about 28,000 gallons. The facility
was issued an order in 1988, prohibiting the company from accepting electrical equipment
containing oil with polychlorinated biphenyl (PCB) levels in excess of 1 part per million (ppm).
Approximately 37,800 people live within 3 miles of the site, while 1,000 people live within a
mile of the site. The land around the site is used for industrial and commercial purposes. Prime
agricultural land is less than a mile away. The Mississippi River, 2 miles from the site, is used
for fishing, recreational and commercial boating, and swimming. The Cape La Croix Creek,
which flows into the Mississippi, receives runoff from the site through a series of drainage
ditches. Most of the water needs of the City of Cape Girardeau are provided by the Mississippi
River. However, groundwater from a public well 2 miles south of the site supplements river
water during peak demand periods. A wetland area is located immediately to the south of the site.
Site Responsibility:
This site is being addressed through
Federal and potentially responsible
parties' actions.
NPL LISTING HISTORY
Proposed Date: 06/24/88
Final Date: 02/21/90
November 1994
-------
Threats and Contaminants
The EPA found PCBs from site operations in on- and off-site air sampling during
1987. The soils in the area are somewhat permeable, and the bedrock is highly
fractured. These conditions have made it easier for PCBs and volatile organic
compounds (VOCs) such as trichloroethylene (TCE) to flow into the groundwater.
VOCs, chlorinated hydrocarbons and PCBs have been found in the groundwater below
the site. Sediments in channels draining the site and areas off site contain PCBs. PCB
contamination of the soil is widespread and occurs to a depth of at least 5 feet from
leakage and disposal of contaminated transformer oil. Residents who. eat produce from
gardens at the site could be at risk from the contaminated soil. Breathing contaminated
airborne dust near the site could affect the health of those on or near the site.
Cleanup Approach
This site is being addressed in two stages: immediate actions and a long-term remedial phase
focusing on cleanup of the entire site.
Response Action Status
Immediate Actions: The site owner erected barriers to stop PCBs from migrating
off site via drainage ditches and conducted sampling of a structure on site. When it
was determined mat the site owner did not adequately perform these activities, the
EPA resampled the structure and erected new barriers across the drainage ditches to reduce the
migration of PCB-contaminated soil off site.
Entire Site: In 1990, the EPA selected a remedy which includes on-site incineration
of the PCB-contaminated soil and pumping and treatment of the groundwater via air
stripping, followed by carbon adsorption. After the site soils have been incinerated,
a further investigation of groundwater contamination is planned. The design for incinerating
contaminated materials began in the fall of 1994 and is scheduled for completion in 1997.
Site Facts: Over 100 potentially responsible parties signed an Administrative Order on Consent
to study site contamination and the feasibility of various cleanup technologies. In late 1991, a
Consent Decree was signed between EPA and 175 potentially responsible parties to design the
remedy and cleanup the soil under EPA supervision.
November 1994 2 MISSOURI ELECTRIC WORKS
-------
Environmental Progress
Erecting barriers across drainage ditches to reduce the migration of contaminated soil have
reduced the potential for exposure to hazardous substances at the Missouri Electrical Works site
while final remedies are being designed to clean up the soil and additional groundwater
investigation is being conducted.
Site Repository
Cape Girardeau Public Library, 711 N. Clark Street, Cape Girardeau, MO 63701
MISSOURI ELECTRIC WORKS
November 1994
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NORTH-U
DRIVE WELL
CONTAMINATION
MISSOURI
EPA ID# MOD007163108
EPA REGION 7
Greene County
North of Springfield
Other Names:
ontgomery Metal Craft
Site Description
In 1983, the residents near the North-U Drive Well Contamination site became concerned over
the taste of their water. When the State investigated, it was discovered that seven private wells at
five locations were contaminated with volatile organic compounds (VOCs). The EPA extended
public water supply lines to the affected homes. The source of the contamination is unknown.
Sinkholes in the area could have been used for waste disposal and might also have served as a
conduit for migration of contaminants to the groundwater. There is no defined site boundary.
This site is in a rural residential area with approximately 300 people living within a 1/4 mile
radius. The contaminated wells are 1,500 feet west of Fulbright Spring, a major water source for
the City of Springfield, which has a population of 133,000.
Site Responsibility:
This site was addressed through
Federal and State actions.
NPL LISTING HISTORY
Proposed Date: 10/15/84
Final Date: 06/10/86
Deleted Date: 9/08/94
Threats and Contaminants
Soil and groundwater in the private wells are contaminated with VOCs including
toluene and benzene. The majority of the private wells have been plugged and,
therefore, do not pose a health threat. However, a few owners have refused to have
their wells plugged; people who use the contaminated drinking water may suffer
adverse health effects. Recently, metals were found in some nearby private wells;
however, there are no nearby sources of metal contamination. The metals found in
groundwater may be a natural phenomenon resulting from metals in local soils or
bedrock or could be attributed to plumbing. Because the bedrock is fractured, it may
allow contaminants to migrate from the immediate area in directions and at speeds
which would not otherwise be expected.
December 1994
-------
Cleanup Approach
Response Action Status
Immediate Actions: In 1985, the EPA extended the Springfield public water
supply lines to North-U Drive. In addition, 67 private wells were plugged
permanently to prevent their use and to prevent the well casings from serving as
avenues of deep aquifer contamination.
Entire Site: The Missouri Department of Natural Resources conducted an
investigation into the nature and extent of contamination at the site. Data from this
investigation was used by the EPA to determine the releases were from petroleum
products. In early 1993, a remedy was selected in which the EPA determined that it could not
undertake response action to address the organic contaminants in the groundwater because the
Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA)
"Petroleum Exclusion" precludes Superfund response actions for the release of petroleum
products. The site has been deleted from the National Priorities List (NPL), and will be
addressed under other federal programs.
Environmental Progress
The immediate actions described above have eliminated the potential of exposure to hazardous
substances in the drinking water and will continue to protect households around the North-U
Drive Well Contamination site.
Site Repository
Kearny Branch Library, 630 W. Kearney, Springfield, MO 65801
December 1 994
NORTH-U DRIVE WELL
CONTAMINATION SITE
-------
ORONOGO-D
MINING BELT
MISSOURI
EPA ID# MOD980686281
Site Description
EPA REGION 7
Jasper County
2 miles northeast of Joplin
Other Names:
Tar Creek-Jasper County
Tri-State Mining Area
The Oronogo-Duenweg Mining Belt site, which covers 6,400 acres, is considered to be part of
the Tri-State Mining District of Missouri, Kansas, and Oklahoma. Two other sites in the district,
Cherokee County in Kansas and Tar Creek in Oklahoma, were placed on the NPL in 1983. Lead
and zinc ores, as well as some cadmium ores, were mined from 1848 to the late 1960s, with the
greatest activity occurring in an area between Oronogo and Duenweg, northeast of Joplin. Mining
efforts originally were performed by independent operations that, in later years, were organized
by several area mining companies. The site is honeycombed with underground workings, pits,
shafts (open, closed, and collapsed), mine tailings, waste piles, and ponds holding tailing waters.
An estimated 10 million tons of wastes or tailings are on the site. Throughout the mining era,
groundwater had to be pumped to prevent the flooding of mines. When mining ceased, the shafts
and underground workings filled with water. Tailing piles have been left uncovered and
unstabilized. Leachate and runoff from the piles can enter open shafts and pits. Approximately
1,500 people obtain drinking water from private wells within 3 miles of the site.
Site Responsibility: This site is being addressed through
Federal and potentially responsible
parties' actions.
NPL LISTING HISTORY
Proposed Date: 06/24/88
Final Date: 08/30/90
Threats and Contaminants
Tests conducted in 1977 by the U.S. Geological Survey, and by the potentially
responsible parties in 1993 and 1994, found soil, on-site groundwater, and surface
water to be contaminated with heavy metals including lead, zinc, and cadmium from
the mining operations. Potential risks may exist through drinking contaminated surface
water and groundwater or coming into direct contact with contaminated soil or mine
wastes.
December 1994
-------
Cleanup Approach
This site is being addressed in two phases: initial actions and a long-term remedial phase focusing
on cleanup of the entire site.
Response Action Status
Initial Actions: The parties potentially responsible for site contamination are
providing 100 affected residences with bottled water.
Entire Site: The EPA and potentially responsible parties began investigations in 1991
to determine the nature and extent of contamination at the site. Once the investigation
is completed, scheduled for 19%, cleanup alternatives will be reviewed and a final
remedy will be selected.
Site Facts: This mining site is potentially eligible for cleanup funds from the State of
Missouri's approved program under the Surface Mining Control and Reclamation Act of 1977.
The EPA is developing a policy for listing such sites. An Interagency Agreement was signed with
the U.S. Geological Survey in April 1990 to provide technical assistance at this site.
Environmental Progress
Providing bottled water to 100 nearby residences has reduced the threat of exposure to
contamination while investigations leading to final cleanup remedies are being conducted.
Site Repository
Three site repositories have been established within Jasper County:
Webb City Public Library, 101 S. Liberty, Webb City, Missouri 64870
Joplin Public Library, 300 Main Street, Joplin, Missouri 64801
Carl Junction City Hall, 105 N. Main Street, Carl Junction, Missouri 64834
December 1994
ORONOGO-DUENWEG MINING BELT
-------
QUALITY PLA
MISSOURI
EPA 1D# MOD980860555
EPA REGION 7
Scott County
Sikeston
Site Description
The Quality Plating site covers approximately 5 acres in Sikeston. The site originally consisted of
a 1-acre unlined lagoon and manufacturing plant. From 1978 until the facility was destroyed by
fire in early 1983, Quality Plating was engaged in contract electroplating of common and
precious metals. Untreated wastewater originating from the flow-through rinse tanks, as well as
acid, alkaline, and metal-plating batch solutions, were continuously discharged into the lagoon at
a rate of at least 10,000 gallons per day. The State detected elevated levels of chromium and lead
in an on-site well. The area now is used for hay production. The population within a mile of the
site is 120 people. Six residences within 1A mile of the site obtain drinking water from shallow
wells.
Site Responsibility:
This site is being addressed through
Federal and State actions.
NPL LISTING HISTORY
Proposed Date: 10/15/84
Final Date: 06/10/86
Threats and Contaminants
The groundwater and on-site soils are contaminated with metals such as lead and
chromium from the former electroplating operations. Drinking or bathing with the
contaminated groundwater could cause adverse health effects.
Cleanup Approach
The site is being addressed in a two phases:
focusing on cleanup of the entire site.
immediate actions and a long-term remedial phase
December 1994
-------
Response Action Status
Immediate Action: The EPA removed contaminated soil from the site in 1992.
Entire Site: Under monitoring by the EPA, the State began an investigation of the
site and alternative cleanup methods in mid-1991. Soil sampling, installation of
groundwater monitoring wells and groundwater sampling have been conducted. Initial
studies have indicated the groundwater is contaminated with chromium and the plume is moving
south of the site. The studies are scheduled for completion in late 1994, after which cleanup
remedies will be selected.
Site Facts: The State repeatedly has cited the company for discharging untreated plating waste
into subsurface waters. This was in violation of the company's permit under the National
Pollutant Discharge Elimination System. The EPA and the State have entered into a Cooperative
Agreement to perform a study at the site, led by the State.
Environmental Progress
The removal of contaminated soils from the Quality Plating site has reduced the potential for
future contamination of local groundwater while further investigations leading to final cleanup
activities are taking place.
Site Repository
Sikeston Public Library, 221 N. Kings Highway, Sikeston, MO 63801
December 1994
QUALITY PLATING
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SHENANDOA
STABLES
MISSOURI
EPA ID# MOD980685838
EPA REGION 7
Lincoln County
Moscow Mills
Other Names:
Arena 1 - Shenandoah Stables
Highway 61 Fill
Slough Area
Site Description
The Shenandoah Stables site covers about 7 acres near Moscow Mills. In 1971, the horse arena
became contaminated with dioxin when a St. Louis waste oil hauler sprayed it with approximately
2,000 gallons of contaminated oil for dust control. Afterward, numerous birds, rodents, and over
40 horses died. Several adults and children also became ill. In 1971, the top 6 to 8 inches of
contaminated soil were excavated and used as fill material in a new highway. In 1972, more soil
was removed from the arena and placed in a swampy area on site. The EPA sampling in 1982
indicated that the top 30 inches of soil in the arena and soil in the slough are contaminated with
dioxin. Approximately nine houses are located in the rural area within a 1/4-mile radius of the
Shenandoah Stables. The adjacent properties are mostly agricultural. The nearest residence is
approximately 330 feet east of the site.
Site Responsibility: This site is being addressed through
Federal, State, and potentially
responsible parties' actions.
NPL LISTING HISTORY
Proposed Date: 12/30/82
Final Date: 09/08/83
Threats and Contaminants
The soil in me arena and slough is contaminated with dioxin from the placement of
contaminated oil on the site and from earlier cleanup attempts. Because cleanup
activities have taken place, the site no longer poses a threat to public health or the
environment.
Cleanup Approach
The site is being addressed in three stages: immediate actions and two long-term remedial phases
directed at cleanup of the soil and solid waste and disposal of the soil.
December 1994
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Response Action Status
Immediate Actions: In 1988, the parties potentially responsible for die site
contamination closed the stables, posted warning signs, and restricted access to the
property. Sampling also was done at this time to determine the amount of
contamination at the site.
Soil and Solid Waste: The EPA selected the methods for cleanup of the
contaminated soil and solid waste in the summer of 1988. These cleanup activities
included: excavating the soil to health-based standards; placing the soil in plastic bags
and storing the bagged soil on site in an approved facility; decontaminating on-site structures; and
fencing and posting the area. The EPA completed the cleanup in 1990, which included the
excavation and on-site interim storage of dioxin-contaminated soils above the 1 part per billion
(ppb) action level.
Soil Disposal: In the fall of 1990, the EPA selected a remedy to dispose of the soil,
which will be completed in conjunction with the cleanup of the Times Beach site.
The selected action is to transport the bags of dioxin-contaminated soil to Times
Beach for incineration once die Times Beach incinerator is operable. A permit application is
currently under review for the Times Beach thermal treatment unit.
Site Facts: Pursuant to an EPA Administrative Order, the parties potentially responsible for site
contamination restricted public access to the site in 1983. The site initially was identified due to
citizen complaints concerning illnesses hi children who had visited the site.
Environmental Progress
By closing the stables, restricting access to the site, decontaminating on-site structures, and
storing the contaminated soil on site in an approved facility, the EPA has eliminated immediate
threats to the community and the environment at the Shenandoah Stables site. Contaminated soils
from the site will be transported to the Times Beach facility for final destruction of dioxins by
incineration, once the permit application is approved.
Site Repository
Moscow Mills City Hall, 500 Highway MM, Moscow Mills, MO 63362
December 1994 2 SHENANDOAH STABLES
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SOLID STATE t
CIRCUITS, INC
MISSOURI
EPA ID# MOD980854111 ~
EPA REGION 7
Greene County
Republic
Other Names:
Republic Plant, SSC
Site Description
The Solid State Circuits, Inc. (SSC) site covers 1 acre in Republic. During a 1980 drinking water
study, trichloroethylene (TCE), a volatile organic compound (VOC), was detected in one of the
City of Republic's public water supply wells. Further investigation by the State identified the site,
at which SSC formerly manufactured printed circuit boards, as the source of the contamination.
Allegedly, barrels of solvents, including TCE that was used as a copper residue stripper and
plating wastes were stored in a sump pit in the basement of the facility. The State learned that
after a fire destroyed the building, the new property owner (not SSC) buried the remaining
structure and its contents in the basement, where there also was an unplugged well. SSC
excavated material from the basement and installed three monitoring wells in response to an order
from the State. The Town of Republic, with an estimated population of 5,535, potentially is
endangered by contaminated ground water. There are private wells and community wells within a
3-mile radius of the site. One community well was closed as a result of the contamination.
Schuyler Creek is located downgradient from the site, approximately 2 miles away.
Site Responsibility:
This site is being addressed through
Federal, State, and potentially
responsible parties' actions.
NPL LISTING HISTORY
Proposed Date: 10/15/84
Final Date: 06/10/86
Threats and Contaminants
Ground water on and off site is contaminated with VOCs including TCE, methylene
chloride, and chloroform from the former site operations. TCE was found in on-site
soil prior to immediate response actions. Removal of contaminated surface and
subsurface soils eliminated the risk of exposure. Sewer line and utility workers could
be exposed to contaminated groundwater; however, standard safety procedures
eliminate unacceptable risks.
December 1994
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Cleanup Approach
Response Action Status
Immediate Actions: In 1984, the EPA fenced the area where the building once
stood. In 1985, following SSC's initial cleanup actions at the site, the EPA removed
approximately 2,000 cubic yards of soil from the basement, the soil underneath the
basement, and debris to further stabilize the site. The basement was sealed with a gravel and soil
cover to bring it up to grade. The EPA plugged the abandoned well, and two wells were installed
to extract contaminated groundwater.
Entire Site: Under the supervision of the State, SSC conducted an investigation at
the site to determine the extent and nature of contamination and to identify alternative
technologies for cleanup. As a result of the investigation, SSC will extract the
contaminated groundwater by using new and existing wells; perform on-site treatment of
extracted groundwater using two existing air strippers; discharge treated water to the city sewer
system to receive further treatment at the publicly owned treatment works; and implement a city
ordinance to prevent construction of drinking wells in or near the contaminated groundwater
plumes. Monitoring of the groundwater will continue to ensure groundwater quality. SSC began
designing the remedy in the spring of 1991. Installation of the automated data collection and
controller system began in late 1991, replacing the original air stripper towers. The design was
completed in late 1992. A groundwater pump and treatment system was installed in 1993, which
is expected to operate for 40 years to meet established cleanup standards.
Site Facts: The EPA, the Missouri Department of Natural Resources, and Solid State Circuits
signed a Consent Decree in July 1990, requiring SSC to conduct the remedy design, construction
and operation activities, under the supervision of the State. The Consent Decree was entered by
the Court in May, 1991.
Environmental Progress
After the initial cleanup actions undertaken by Solid State Circuits, Inc., the EPA reduced
remaining risks to people and the environment by securing the site, removing contaminated soil
and debris, sealing the basement area, and installing wells to extract and treat the contaminated
groundwater. Construction of the groundwater pump and treatment system has been completed
and is expected to operate for 40 years to meet established cleanup standards.
Site Repository
Springfield/Greene County Library, 393 E. Central, Springfield, MO 65801
December 1994 2 SOLID STATE CIRCUITS, INC.
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ST. LOUIS Al
HAZELWOOD
INTERIM
STORAGE/FUTU
COATINGS CO.
MISSOURI
EPA ID# MOD9S0633176
EPA REGION 7
St. Louis County
Approximately 15 miles northwest of
downtown
ambert/St. Louis International Airport
Other Names:
wood Interim Storage & Vicinity
Latty Avenue
mbert-St Louis Intl. Airport
Site Description
The St. Louis Airport/Hazelwood Interim Storage/Futura Coatings Co. site consists of three areas
covering approximately 32 acres. These areas were used for storing radioactive and other wastes
resulting from uranium processing operations conducted in St. Louis. Radioactive scrap, drums
of waste, and bulk waste were stored in the airport area in uncovered and unstabilized piles from
1947 to the mid-1960s, when they were transferred to the 9200 Latty Avenue area, later known
as the Hazelwood Interim Storage (HIS) site. Buildings in the airport area were razed, buried,
and covered with clean fill after 1967. In 1973, the land was conveyed to the St. Louis-Lambert
Airport Authority. The HIS and the Futura Coatings Co. plant cover 11 acres adjacent to
Coldwater Creek. In 1966, Continental Mining and Milling Co. acquired the property and
recovered uranium from wastes purchased from the Atomic Energy Commission's (AEC) St.
Louis operations. In 1967, the company sold the property, and by 1973 most processing residues
had been removed. Under me direction of the Nuclear Regulatory Commission (NRC), the
present owner excavated contaminated soil and is storing it in two large piles in the eastern
portion of the 11 acres adjacent to Coldwater Creek. Since the 1970s, Futura Coatings, a
manufacturer of plastic coatings, has leased the western portion of the site. A McDonnell
Douglas office building housing 24,000 employees is within Vt mile of the airport area. An
estimated 35,420 people reside within 3 miles of the site.
Site Responsibility:
This site is being addressed through
Federal actions.
NPL LISTING HISTORY
Proposed Date: 04/28/89
Final Date: 10/04/89
December 1994
-------
Threats and Contaminants
IT
Radon-222 was present in the air near the airport area in tests conducted by the U.S.
Department of Energy (DOE) in 1986. Elevated levels of uranium, thorium, and
radium are present in groundwater near the airport area and in surface and subsurface
soils. Direct contact with or accidental ingestion of contaminated soils or groundwater
on or near the sites may pose health risks to individuals.
Cleanup Approach
The site is being addressed in two stages: immediate actions and a long-term remedial phase
directed at cleanup of the entire site.
Response Action Status
Immediate Actions: In 1984, the DOE cleared the HIS and Futura Coatings areas,
constructed a vehicle decontamination facility, installed a perimeter fence, excavated
and backfilled the edges and shoulders of Lady Avenue, and consolidated the
resulting contaminated soils into one secured storage pile. In 1986, during a city road
improvement project, contaminated soil from roads leading to and from all three areas was
excavated and placed into a secured storage pile.
Entire Site: The DOE has investigated the site under its Formerly Utilized Sites
Remedial Action Program (FUSRAP). In 1982, me DOE conducted preliminary
studies of radioactive contamination in the ditches along the sides of the roads leading
to and from the areas. In 1986, boreholes were drilled to continue the contamination study and to
collect geological information. The DOE is continuing studies of all the site areas, which will
lead to additional cleanup actions. A more comprehensive investigation began in 1990 to
determine the full extent of groundwater and soil contamination and to identify alternative
technologies for the cleanup. Phase I of the investigation was completed in 1992. Remaining
investigation phases are scheduled for completion in late 1995.
Environmental Progress
The DOE is conducting intensive investigations into the cleanup alternatives for me St. Louis
Airport site. Until these investigations are completed, the immediate actions described above have
reduced the potential for exposure to hazardous materials and further contamination of the site.
December 1994 2 ST. LOUIS AIRPORT/HAZELWOOD INTERIM
STORAGE/FUTURA COATINGS CO.
-------
Site Repository
St. Louis Public Library, 1301 Olive Street, St. Louis, MO 63102
ST. LOUIS AIRPORT/HAZELWOOD INTERIM 3 December 1994
STORAGE/FUTURA COATINGS CO.
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SYNTEX
FACILITY
MISSOURI
EPA ID# MOD007452154
EPA REGION 7
Lawrence County
Verona, 30 miles southwest of
Springfield
Other Names:
Spring River Basin
Syntex Tank Spill Area
Hoffman-Taff Lagoons-Former
Syntex Detoxification Area
Syntex Trenches
Slough Area-Hoffman/Taff Lagoons
Site Description
The Syntex Facility is a 180-acre site located in rural, predominantly agricultural Verona. Syntex
Agribusiness, Inc. acquired the plant in 1969 from the Northeastern Pharmaceutical Chemical
Company (NEPACCO) and has produced vitamins and prepared animal feeds and feed
ingredients since 1971. From 1969 to 1971, NEPACCO leased a portion of the facility from
Syntex and used it to manufacture hexachlorophene. The production of hexachlorophene
generated the by-product dioxin. Dioxin residues were disposed of in five areas at the Verona
facility. The major areas identified as being contaminated are: the slough area; lagoon area; spill
area/irrigation area; bum area; and trench area. In 1989, Syntex excavated and transported the
lagoon wastes to a mobile incinerator to destroy the dioxin. The incineration was completed in
1989. The population within 3 miles of the Syntex Facility site is approximately 650 people. The
active portion of the facility is located within the Spring River 100-year flood plain.
Site Responsibility:
This site is being addressed through
Federal and potentially responsible
parties' actions.
NPL LISTING HISTORY
Proposed Date: 12/30/82
Final Date: 09/08/83
Threats and Contaminants
The fish in die Spring River were contaminated with dioxin up to 12 miles
downstream. The soil, pools, puddles, and groundwater on the site also are
contaminated with dioxin. However, groundwater contamination is only slightly higher
man background levels. Exposure to dioxin-contaminated soil, drinking contaminated
water, or eating fish mat have been contaminated by dioxin could present a health
threat.
December 1994
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Cleanup Approach —
The site is being addressed in two long-term remedial phases focusing on cleanup of dioxin-
contaminated soils and equipment and cleanup of the groundwater.
Response Action Status
Dioxin-Contaminated Soils and Equipment: Syntex and the EPA reached an
agreement in 1988 on the cleanup methods to be used at the site. The selected cleanup
methods include: excavating and off-site thermal treatment of dioxnvcontaminated soil
that exceeds a health-based criteria for an industrial site; dismantling and decontaminating
equipment with a series of solutions and water rinses; and installing a clay cap with a vegetative
cover over the trench area and portions of the slough area and revegetating areas contaminated
with dioxin below the action level. Syntex removed contaminated soil and transported it off site
for incineration. The ash residue was disposed of off site as well. This action also involved clay
capping and revegetating over me trench area and all areas where waste levels were below 20
parts per billion (ppb). The final cleanup action also will include decontamination of the
equipment at the site. Decontamination and dismantling of contaminated photolysis and old
NEPACCO equipment was initiated in 1990. Completion of this cleanup action is contingent
upon the availability of a Federally-approved disposal facility.
Groundwater: In early 1993, Syntex completed the groundwater studies, and a
remedy decision was issued in 1993 that states that no further action is required at this
time, since contamination is within established health-based standards. Groundwater
monitoring will continue on a quarterly basis for two years.
Site Facts: In August 1982, Syntex signed a Consent Order with the EPA in which the
company agreed to study the disposal sites and Spring River, under the authority of the Resource
Conservation and Recovery Act (RCRA). In September 1983, Syntex Agribusiness and the EPA
entered into a Consent Agreement, which outlined the plan for cleanup of the Syntex site.
Environmental Progress
Much of the cleanup work at the Syntex site has been completed. Contaminated soils have been
removed and areas of former contamination have been capped and revegetated. These actions
have reduced the potential for exposure to dioxin-contaminated soil or surface water at the site.
Further monitoring of groundwater is taking place. Dioxin levels hi Spring River fish populations
have steadily decreased over the past several years.
Site Repository
Varon Elementary School, 1011 Ella, Verona, MO 65769
December 1994 2 SYNTEX FACILITY
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TIMES BEACH
SITE
MISSOURI
EPA ID# MOD980685226
EPA REGION 1
St. Louis County
City of Times Beach
Site Description
The Times Beach Site comprises an area of 1 square mile and is located 20 miles southwest of
St. Louis. The site is a formerly incorporated city whose road system was sprayed annually with
waste oil for dust control in the early 1970s. The oil later was found to be contaminated with
dioxin during an investigation of the city's road systems by the EPA in 1982. During the same
period, the nearby Meramec River flooded the city, and residents were forced to evacuate their
homes. Subsequently, the Centers for Disease Control (CDC) recommended that the residents
who had been evacuated, as well as those who had returned following the 1982 flood, be
permanently relocated. The EPA transferred funds to the Federal Emergency Management
Agency (FEMA) for the permanent relocation of residents and businesses in 1983. By the end of
1986, all residents were relocated permanently. Upon completion of the permanent relocation,
title to the site was conveyed to the State of Missouri. Currently, the site is completely vacant
and fenced. All roads leading into the city are blocked and posted with no trespassing signs. The
site is patrolled by security guards on a 24-hour basis. Most of the former community lies within
the 25-year flood plain of the Meramec River. The population within a Vfe-mile radius of the site
is approximately 2,000, and includes the community of Crescent, and a portion of Eureka. The
site is located in a mixed-use residential and agricultural area.
Site Responsibility:
This site is being addressed through
Federal, State and potentially
responsible parties' actions.
NPL LISTING HISTORY
Proposed Date: 03/04/83
Final Date: 09/08/83
December 1994
-------
Threats and Contaminants
2AJ
The on-site surface soils along the roadways are contaminated with dioxin. Human
exposure to dioxin has been limited by the evacuation of the residents, excavation of
contaminated soils, and access restrictions to the Times Beach site. On-site workers,
security guards, and trespassers could be exposed to dioxin through direct contact or
accidental ingestion of dioxin-contaminated soil currently in interim storage. Fish in
the Meramec River show elevated levels of dioxin. Area residents who consume these
fish could be exposed to this contaminant. Data indicate that sources downstream of
Times Beach are the primary contributors of dioxin into the Meramec River.
Cleanup Approach
The site is being addressed in three long-term remedial phases focusing on stabilization of Times
Beach, excavation and treatment of the soil and other materials, and the permanent relocation of
residents and businesses from the Times Beach area.
Response Action Status
Stabilization: The remedies selected by the EPA in 1984 to stabilize Times Beach
and three nearby sites included: construction of an approximately 50,000-cubic-yard
interim storage facility at Times Beach, and excavation of the dioxin-contaminated soil
from Minker/Stout/Romaine Creek, Quail Run Mobile Manor, and the Castlewood Area sites.
Construction of a series of spur levees also was selected in order to control water velocity during
flooding and to limit erosion of contaminated soils. Due to State legislative and administrative
actions, the interim storage facility that was planned to contain contaminated soils could not be
constructed. Only the spur levee portion of the remedy could be implemented. In 1985, the EPA
raised an existing levee constructed by the Missouri Highway Department as the first phase in the
construction of a three-phase spur levee. In 1989, the second and third phases of the spur levee
were completed, including relocation of roadways.
Soil, Structures, and Debris: This phase of the cleanup includes excavation and
thermal treatment of contaminated soil and the final disposal of structures and debris.
Cleanup activities include: demolition and disposal of uncontaminated structures and
debris at Times Beach in a facility meeting solid waste disposal requirements; construction of a
ring levee to protect a temporary thermal treatment unit from a 100-year flood; mobilization of a
temporary transportable thermal treatment unit to Times Beach; excavation of all dioxin-
contaminated soils at Times Beach exceeding the levels for protection of human health and the
environment; thermal treatment of excavated soils to destroy contaminants; and on-site disposal
of treatment residue (ash), after receiving EPA approval of its chemical content, in a facility
meeting solid waste management requirements. The design and construction activities involved in
the demolition and disposal of uncontaminated structures and debris were completed in 1992.
Excavation and interim on-site storage of dioxin-contaminated soils pending final treatment was
completed in the fall of 1994. The engineering design for the remaining cleanup activities,
including the thermal treatment unit, was completed in 1992. A permit application is currently
under review for the thermal treatment unit.
December 1994 2 TIMES BEACH SITE
-------
Relocation: This third cleanup phase addresses the permanent relocation of residents
and businesses and the acquisition of all remaining properties. In 1983, the EPA
provided $30 million to FEMA in a transfer allocation to conduct this phase of the
cleanup. By the end of 1986, all residents were relocated permanently. FEMA has completed the
purchase of all remaining properties. FEMA, the State of Missouri, the trustee for the former
City of Times Beach, and St. Louis County entered into a four-party contract for permanent
relocation. Ownership of the properties has been conveyed to the State, in accordance with the
four-party agreement.
Site Facts: hi 1990, the EPA, the State, and the potentially responsible parties signed a Consent
Decree, under which cleanup activities would be conducted at the Times Beach site and 27 other
dioxin sites in eastern Missouri. Under the terms of the Consent Decree, die EPA is responsible
for excavation and transportation of dioxin-contaminated soils from the 27 eastern Missouri sites
to Times Beach. The potentially responsible parties are responsible for the demolition and
disposal of structures and debris, operation of the thermal treatment facility, and restoration of
the site.
Environmental Progress
The Times Beach area has been stabilized, and numerous cleanup actions have been completed. A
security fence was completed in 1992, controlling unauthorized access to the site. All residents
and businesses have been permanently relocated, the purchase of the remaining parcels by FEMA
has been completed, and the ownership of the parcels of land has been conveyed to the State of
Missouri. The demolition and disposal of the structures at Times Beach has been completed.
Excavation of dioxin-contaminated soils and placement in temporary on-site storage pending final
treatment has been completed. Thermal treatment of dioxin-contaminated soils from Times Beach
and other sites is scheduled to begin once the permit application is approved.
Site Repository
EPA Information Trailer, 1-44, Lewis Exit, Times Beach, MO 63025
TIMES BEACH SITE 3 December 1994
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VALLEY PARK
MISSOURI
EPA ID# MOD980968341
EPA REGION 7
St. Louis County
Valley Park
Other Names:
TCE Study
Site Description
The Valley Park TCE site is located within the city limits of Valley Park. The site is a plume of
contaminated groundwater in the Meramec River alluvial aquifer. In 1982, the Missouri
Department of Natural Resources (MDNR) detected a number of volatile organic chemicals
(VOCs) including trichloroethylene (TCE), tetrachloroethene (PCE), and trichloroethane (TCA)
in all three municipal water supply wells serving the community. Private wells within the vicinity
of the site also are contaminated with VOCs. However, area private wells reportedly are used
only for industrial purposes. Possible sources of contamination include the industries located in
Valley Park. One source has been identified, but not all contaminants in the groundwater can be
attributed to the responsible party. There are approximately 3,000 people in the community who
obtained drinking water from the affected groundwater.
Site Responsibility: This site is being addressed through
Federal, State, and potentially
responsible parties' actions.
NPL LISTING HISTORY
Proposed Date: 04/10/85
Final Date: 06/10/86
Threats and Contaminants
The groundwater and soil located at the sources, are contaminated with VOCs
including TCE, PCE and TCA. Drinking water from me contaminated aquifer poses a
potential health threat to area residents using polluted groundwater resources.
December 1994
-------
Cleanup Approach
The site is being addressed in two stages: immediate actions and a long-term remedial phase
focusing on cleanup of the ground water.
Response Action Status
Immediate Actions: In 1986, Valley Park installed aeration equipment at its water
treatment plant to remove the VOCs that had been detected in the drinking water. In
1989, Valley Park was connected to the St. Louis County public water system, which
now supplies its drinking water. Since Valley Park was connected to the County public water
system, the residents no longer are using contaminated water for domestic purposes. In 1990, a
potentially responsible party removed 331 cubic yards of PCE- and TCE-contaminated soil and
backfilled the area. The predetermined cleanup levels were not attained; however, planned studies
and future activities are expected to attain the cleanup levels.
Ground water: Under supervision by the MDNR, one of the potentially responsible
parties, Wainwright Industries, agreed to conduct a site investigation on their
property. In the fall of 1994, EPA selected a remedy for cleanup of part of the site
(Wainwright area). The remedy includes: limited soil extraction; soil vapor extraction and, after
five years, additional soil excavation if needed; air sparging to accelerate the soil cleanup;
groundwater extraction, treatment by airstripping, and discharge of treated groundwater into the
public sewer system; and groundwater monitoring. The investigation for the remainder of the
site is scheduled to be completed in 1996, at which point EPA will select a remedy for final
cleanup.
Environmental Progress
By connecting the affected residences to the public water system and removing contaminated soil,
the potential for exposure to contaminated drinking water or soil has been reduced at the Valley
Park TCE site while final cleanup remedies are being planned.
Site Repository
Valley Park City Library, 320 Benton Street, Valley Park, MO 63088
December 1994 2 VALLEY PARK TCE
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WELDON SPR
QUARRY/PLAN
PITTS (USDOE/A
MISSOURI
EPA ID# MO3210090004
EPA REGION 7
St. Charles County
25 miles west of St. Louis
Other Names:
'eldon Spring-Raffinate Pitts
on Springs Chemical Plant
Site Description
The Weldon Spring Quarry/Plant/Pitts (USDOE/Army) site covers 230 acres and is located
between the Missouri and Mississippi Rivers. This site is closely associated with the nearby
Weldon Spring Former Army Ordnance Works NPL site. A series of land transfers in the 1950s
gave the Atomic Energy Commission (AEC), later called the U.S. Department of Energy (DOE),
220 acres of the original Ordnance Works area. The DOE now is responsible for the
contamination, both radioactive and non-radioactive, on the property. The site includes a 51-acre
disposal area, a 169-acre abandoned uranium feed materials plant, various smaller properties and
a 9-acre former limestone quarry located 4 miles from the plant. From 1941 to 1944, the
Department of the Army operated an explosives production plant on the site. Due to frequent
spills, wastewater containing sulfonate derivatives contaminated surface water and groundwater.
The Ordnance Works area was closed at the end of World War n, and the processing structures
were demolished. In 1955, the AEC acquired a portion of the Ordnance Works area for
construction of a uranium feed materials plant. Mallinckrodt, Inc. operated the plant under a
contract with the AEC from 1957 to 1966. The plant converted uranium concentrates to uranium
tetrafluoride and uranium metal. Thorium ore, also a radioactive metal, was processed. The
residues from the processing were disposed of in four large open pits. During that period, the
plant, buildings, equipment, soil surface, sewer system, and the drainage into the Missouri River
became contaminated with uranium, thorium, and their radioactive decay products. From 1943
until 1957, the U.S. Army used an abandoned limestone quarry located about 3 miles southwest
of me plant site for the disposal of unknown quantities of materials contaminated with
trinitrotohlene (TNT) and dinitrotoluene (DNT) residues. The AEC acquired the site in 1958 and
used the quarry from 1959 to 1966 to dispose of uranium, thorium, and radium residues and
contaminated materials and equipment. From 1966 to 1969, the Army deposited additional TNT-
contaminated materials in the quarry. The quarry is located 3/4 of a mile from the St. Charles
County well field, which is used as a drinking water source for approximately 70,000 people.
The population living within 3 miles of the site is 5,000 people.
Site Responsibility:
This site is being addressed through
Federal actions.
NPL LISTING HISTORY
Proposed Date: 10/15/84
Final Date: 07/22/87
December 1994
-------
Threats and Contaminants
ZEJ
Off-site groundwater is contaminated with TNT, DNT, and other explosive materials.
The soil is contaminated with radionuclides, TNT, DNT, polycyclic aromatic
hydrocarbons (PAHs), polychorinated biphenyls (PCBs) from transformers, and heavy
metals. Off-site surface water is contaminated with uranium. Accidental ingestion of
and direct contact with contaminated groundwater, surface water, or soil may cause a
potential health hazard. Adjacent wildlife and recreational areas may be threatened due
to off-site migration of the contaminants. Contaminant migration from the quarry to
the adjacent Missouri River alluvium poses a potential threat to the County well field.
Cleanup Approach
This site is being addressed in four stages: immediate actions to stabilize the site and three long-
term remedial phases focusing on source control in the chemical plant area, cleanup of the quarry
bulk waste, and cleanup of the quarry residuals.
Response Action Status
Immediate Actions: The DOE began interim cleanup actions at this site in 1987,
which to date have included removing overhead piping and asbestos, consolidating
and storing containerized chemicals, removing electric lines and poles, cleaning up
radioactive soil from Army Reserve properties, dismantling the chemical plant structures,
removing PCB transformers, constructing a stormwater diversion dike to reduce off-site
migration, and constructing two wastewater treatment plants. Approximately 13,000 gallons of
PCB fluids and flushing solutions were removed and transported to an off-site incineration
facility. As of the summer of 1994, all 40 buildings and other structures have been dismantled
and placed in temporary storage. Treatment and discharge of storm water and impounded
surface water will continue through the life of the project.
Source Control, Treatment, and Disposal: In 1986, the DOE began an
investigation to determine the nature and extent of contamination of the air, lakes and
streams, sludges, and 40 structures, and to identify cleanup alternatives. The studies
were completed in 1993, and final cleanup strategies for contaminated areas were initiated to
include removal of the building foundations, preparation of the subbase for the disposal cell,
construction of the disposal cell, and construction of a pilot scale treatment facility.
Quarry Bulk Waste: In 1990, the EPA chose to excavate and to temporarily store
quarry bulk wastes on site. Wastes are being transported over a haul road constructed
solely for mis purpose. As of the summer of 1994, roughly 2,000 truckloads of
waste have been excavated and placed into temporary storage. Cleanup activities are scheduled
for completion in late 1995.
December 1994 2 WELDON SPRING QUARRY/PLANT/PITS
(USDOE/ARMY)
-------
Quarry Residuals: An investigation focusing on quarry residuals and groundwater
contamination at the quarry is ongoing. The full scope of the investigation cannot be
completed until bulk waste excavation is complete, which is scheduled for late 1995.
Site Facts: Under a 1992 Interagency Agreement with the EPA, the DOE will conduct cleanup
actions at the quarry, as well as the plant area and nearby radioactive contaminated properties.
Environmental Progress
The removal of contaminated soil, materials, and structures, and the treatment of impounded
surface water described above, have reduced the potential for exposure to hazardous substances at
the Weldon Spring Quarry/Plant/Pitts site while further studies and cleanup activities are
ongoing.
Site Repository
Spencer Creek Branch, St. Charles City-County Library, 425 Spencer Road,
St. Peters, MO 63376
WELDON SPRING QUARRY/PLANT/PITS
(USDOE/ARMY)
December 1994
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WELDON S
FORMER AR
ORDNANCE
WORKS
MISSOURI
EPA ID# MO5210021288
EPA REGION 7
St. Charles County
25 miles west of St. Louis
Other Names:
Weldon Springs National Guard Facility
US Army Training Center
Weldon Springs-Ex Army Ordnance
Plant
Ft. Leonard Wood
Site Description
The Weldon Spring Former Army Ordnance Works site occupied more than 17,000 acres and
operated from 1941 to 1944. During its operation, the site produced explosives including
trinitrotoluene (TNT) and dinitrotohiene (DNT) for the U.S. Armed Services. A series of land
transfers left the Army with 1,655 acres, which it has operated since 1959 for the Army Reserve
as the Weldon Spring Training Area. Contaminated areas are spread throughout the 17,000 acres
of the site, with the greatest concentration in the Training Area. Some of the transferred land that
covered two small areas of the original Ordnance Works area now are owned by the U.S.
Department of Energy (DOE) and listed on the National Priorities List as Weldon Spring
Quarry /Plant/Pits site. Investigations have identified a number of potentially contaminated areas,
including seven unlined lagoons where TNT wastewater was stored, TNT production lines, two
DNT production lines, drainage ditches below TNT production lines, and nine areas where
explosive wastes were burned. Approximately 5,000 people live within 3 miles of the site, and
approximately 70,000 people obtain drinking water from St. Charles County wells within 3 miles
of the hazardous substances at the site. Surface water in the area flows either to the Mississippi
River watershed to the north or the Missouri River watershed to the south. Surface waters within
3 miles are used for recreational activities.
She Responsibility: This site is being addressed through
Federal actions.
NPL LISTING HISTORY
Proposed Date: 07/14/89
Final Date: 02/21/90
December 1994
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Threats and Contaminants
In 1987, a Department of Defense (DOD) investigator found explosives such as TNT
and DNT in monitoring wells near the lagoons. TNT, DNT, and lead have been
identified in soil in several areas at the site, and TNT was detected in 1987 in surface
water downstream of the lagoons. The Mississippi watershed, which supports
wetlands, wildlife, and recreational activities, may be threatened by runoff from the
site. The TNT and DNT contamination on the site represent a physical hazard with
some potential for explosion. Ingestion of polluted surface water, groundwater, or
contaminated soil may pose a threat to human health. DNT is a probable human
carcinogen and may be absorbed through direct contact.
Cleanup Approach
This site is being addressed in two stages: initial actions and a long-term remedial phase focusing
on cleanup of the entire site.
Response Action Status
Initial Actions: In late 1992, the U.S. Army Corps of Engineers removed the
interior wooden boards of a storage room used by the Francis Howell School
District. This storage room was a box factory during the operation of the former
Ordnance Works during World War n. Explosive contaminants were discovered within the
interior wooden boards after wipe samples from the building were taken. The interior wooden
boards were removed and replaced with sheetrock. As part of a removal action, burning ground
#1 was fenced to eliminate any potential exposures while investigative actions are ongoing.
Surface chunks of TNT have also been removed from the burning grounds to eliminate any direct
contact threat.
Entire Site: In 1987, the DOD identified a number of contaminated areas on the site.
Under EPA direction, DOD began a complete investigation into the extent and type of
contamination at the site in early 1990. The study will identify the nature and extent
of contaminants and will recommend cleanup remedies for soils, pipelines, and groundwater. To
date, samples from various lakes and springs have been collected as well as soil gas samples
from an area known as Mechanical City. Groundwater will continue to be monitored to
determine the impact of surface contamination on the groundwater.
Site Facts: This site is participating in the Installation Restoration Program, a specially funded
program established by the DOD in 1978 to identify, investigate, and control the migration of
hazardous contaminants at military and other DOD facilities.
December 1994 2 WELDON SPRING FORMER ARMY
ORDNANCE WORKS
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Environmental Progress
The removal and replacement of interior wooden boards in a storage room at the site has reduced
the potential for exposure to explosive contaminants while further investigations leading to a final
cleanup remedy continue.
Site Repository
Weldon Training Area, 7301 Highway 94 South, St. Charles, MO 63304
WELDON SPRING FORMER ARMY
ORDNANCE WORKS
December 1994
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WESTLAKE LA
MISSOURI
EPA ID# MOD079900932
Site Description
EPA REGION 7
St. Louis County
Bridgeton
The 200-acre Westlake Landfill site is adjacent to prime agricultural land and is in the flood plain
of the Missouri River. From 1939 to 1985, limestone was quarried on the site. Beginning in
1962, portions of the property were used for landfilling of solid and liquid industrial wastes,
municipal refuse, and construction debris. In 1973, Cotter Corp. disposed of over 47,000 tons of
uranium ore processing residues mixed with soil in two areas covering a total of 16 acres of the
site. A radiological survey conducted for the Nuclear Regulatory Commission (NRC) in 1981 and
1982 documented radioactive wastes on site. Property adjacent to the landfill was investigated in
1990, which identified radiological contamination that migrated from the landfill.
Site Responsibility:
This site is being addressed through
Federal and potentially responsible
parties' actions.
NPL LISTING HISTORY
Proposed Date: 10/26/89
Final Date: 08/30/90
Threats and Contaminants
Groundwater beneath the site and soil are contaminated with radioactive contaminants.
Potential threats exist for people who have direct contact with or ingest contaminated
groundwater or soil.
Cleanup Approach
This site is being addressed in two long-term remedial phases focusing on cleanup of radiological
areas and the landfill.
December 1994
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Response Action Status
Radiological Waste Areas: An intensive investigation of contamination within the
radiological areas began in 1994. This study, which is expected to be completion hi
1996, is exploring the nature and extent of the contamination and will identify the best
strategies for cleanup.
Landfill: In 1995, an investigation is scheduled to begin to explore the nature and
extent of the contamination. This study will result hi the selection of final cleanup
strategies to address contamination from the landfill.
Environmental Progress
After listing the site on the NPL, the EPA completed a preliminary study and determined that no
immediate actions were necessary at the Westlake Landfill site while site studies are underway.
Site Repository
Contact the Region 7 Superfund Community Relations Office
December 1994
WESTLAKE LANDFILL
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WHEELING D
SERVICE
COMPANY LAN
MISSOURI
EPA ID# MOD000830554 I—D
Site Description
EPA REGION 7
Andrew County
1 mile south of Amazonia
Other Names:
Wheeling Waste Disposal Site
The Wheeling Disposal Service Company operated a landfill that covers approximately 20 acres,
centrally located on two adjacent areas totaling about 200 acres. The landfill was established in
the early 1970s, and the facility received a State permit in 1975 to operate as an industrial waste
disposal facility. Between 1980 and 1981, the company voluntarily ceased operations. The facility
resumed operations under the authority of a special waste disposal permit issued by the State of
Missouri until it voluntarily closed in 1986. The Missouri Department of Natural Resources
(MDNR) periodically inspected the site and monitored groundwater when the landfill was in
operation. Based on MDNR hazardous waste records, wastes containing pesticides, heavy metals,
paint, solvents, and leather tanning sludge were disposed of in the landfill. In field investigations
conducted by the EPA, contaminants were detected in monitoring wells and springs on the site.
Drinking water is supplied to approximately 4,000 residents of Savannah through wells that are
within 1 to 2 miles of the site. There are private wells within 1A mile of the site. The shallow
groundwater below the site supplies water to the aquifer, potentially contaminating it.
Site Responsibility:
This site was addressed through
Federal and potentially responsible
parties' actions.
NPL LISTING HISTORY
Proposed Date: 12/22/87
Final Date: 10/04/89
Threats and Contaminants
ara
The groundwater and soil on site was found to be contaminated with various volatile
organic compounds (VOCs) and heavy metals including arsenic, chromium, nickel,
and lead from the former waste disposal activities. Several seeps in Mace Creek also
showed contamination, indicating that local surface water was potentially threatening.
People could have been exposed to contaminants from eating crops grown in
contaminated on-site soil.
December 1994
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Cleanup Approach
Response Action Status
Entire Site: In late 1990, the potentially responsible parties completed site studies.
The EPA selected the site remedy, which includes well capping, surface water and
groundwater monitoring, and upgrading the existing landfill cover to comply with
State and Federal standards. The construction for the remedy was completed in the summer of
1994. Long-term maintenance and groundwater monitoring is being conducted by the parties
potentially responsible for site contamination.
Site Facts: A Consent Decree was signed in 1991, requiring the responsible parties to conduct
the remedy design and cleanup activities. The court approved the Consent Decree in 1992.
Environmental Progress
The cleanup of the Wheeling Disposal Service Company Landfill site was completed in 1994.
Long-term groundwater monitoring will be part of the operation and maintenance activities at this
site to ensure long-term protectiveness.
Site Repository
Rolling Hills Library, 514 W. Main Street, Savannah, MO 64458
December 1994
WHEELING DISPOSAL SERVICE
COMPANY LANDFILL
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