United States Off ice of
Environmental Protection , Emergency and
Agency Remedial Response
EPA/ROD/R04-91/100
December 1990
&EPA Superfund
Record of Decision:
Sangamo/Twelve-Mile/
Hartwell PCB, SG
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.
REPORT DOCUMENTATION 1'. REPORT NO. I ~ 3. ReclpIent'a AcC88810n No.
PAGE EPA/ROD/R04-91/100
4. TItle and SubtI1Ie 5. Report Date
SUPERFUND RECORD OF DECISION 12/19/90
Sangamo/Twelve-Mile/Hartwell PCB, SC 6. °
First Remedial Action
7. Author(a) 8. Perlonnlng Organization AepI. No.
II. Perlonnlng Orgainlzation Name and Addre.. 10. ProjectlTaaklWork Unit No.
11. ContrIIct(C) or Grant(G) No.
(C)
(G)
1~ ~orIng Organization Name and Addre.. 13. Type of Report & PerIod Covered
U.S. Environmental Protection Agency 800/000
401 M Street, S.W.
Washington, D.C. 20460 14.
15. Supplementary Note~
16. Abstract (UmIt: 200 words)
The 253-acre Sangamo/Twelve-Mile/Hartwell PCB site consists of seven separate
disposal areas in Pickens County, South Carolina. These areas consist of the Sangamo
Plant area and six private disposal areas located offsite of the Sangamo Plant, which
are designated as the Breazeale, Nix, Dodgens, Cross Roads, John Trotter, and Welborn
areas. Land in the general area is predominantly forested, and there are several
nearby lakes and streams including Lake Hartwell and the Twelve-Mile Creek basin.
Since 1955, Sangamo Weston, Inc., has manufactured electrolytic, mica, and power
fa~tor capacitors. PCBs were used as dielectric fluid in power factor capacitors.
Prior to 1972, waste materials containing PCBs were landfilled in the seven disposal
areas. These PCB-contaminated materials included scrap capacitors and aluminum
hydroxide sludge from an onsite wastewater treatment plant. In the mid-1970's, State
and Federal environmental monitoring programs led to the detection of PCBs in the
sediment of Lake Hartwell, in its tributaries, and in the soil of Sangamo Westo~'s
dump sites. In addition, PCBs were detected in fish samples at two sites in the
Twelve-Mile Creek area of Lake Hartwell. In 1980, Sangamo Weston, Inc., removed a
total of 17,711 cUbic yards of PCB-contaminated soil°.and debris from the Nix and
(See Attached Page)
17. Document Analysis L DescriptoJII
Record of Decision - Sangamo/Twelve-Mile/Hartwell PCB, SC
First Remedial Action
Contaminated Media: soil, sludge, debris, gw
Key Contaminants: VOCs (PCE, TCE), other organics (PCBs)
b. Identifiers/Open-Ended Terms
c. COSA TI ReIdIGroup
18. Availability Statement 111. Security CI... (Thia Report) 21. No. of Pages
I None 247
20. Sec:wity CI... (This Page) ~ PrIce
None
)
50272 101
(See ANSl-Z3I1.18)
See InatruclloM on Reve"",
(Formerly NTlS-35)
Department of Conmerce
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EPA/ROD/R04-91/100 .
Sangamo/Twelve-Mile/Hartwell PCB
First Remedial Action
Abstract (Continued)
Dodgens areas, and disposed of it in a landfill on the Sangamo Plant property. In 1986,
a geotextile liner and soil cap were installed as an interim measure to retard the
migration of PCB contamination from the Breazeale site. In 1989, EPA removed offsite
7,285 tons of PCB-contaminated soil and debris from the Sangamo Plant area to a RCRA
landfill, and 6,684 capacitors were taken to an offsite incinerator. This Record of
Decision (ROD) addresses the first of two operable units, and provides for remediation of
the ground water and source contamination at the seven disposal areas. A future ROD will
address the contamination of the Twelve-Mile Creek basin and Lake Hartwell. The primary
contaminants of concern affecting the soil, sludge, debris, and ground water are VOCs
including PCE and TCE; and other organics including PCBs.
The selected remedial action for this site includes excavating materials contaminated
with greater than 1 mg/kg of PCBs at the Nix and Welborn areas; excavating materials
contaminated with greater than 25 mg/kg of PCBs at the Sangamo Plant area; excavating
materials contaminated with greater than 10 mg/kg of PCBs at the Breazeale, Dodgens,
Cross Roads, and John Trotter areas; transporting the excavated materials to the Sangamo
Plant area for staging and treatment; treating onsite all excavated materials using
thermal desorption technology and carbon adsorption to control off-gases; placing the
treated soil within the Plant area; filling each of the private areas with 2 feet of
clean fill where contaminated materials with PCBs greater than 1 mg/kg remain,
specifically the Trotter, Dodgens, Breazeale, and Cross Roads areas; ground water pumping
and onsite treatment at the Dodgens, Breazeale, Cross Roads, and Sangamo Plant areas
using air stripping and/or carbon adsorption; and discharging treated water onsite to
surface water. The estimated present worth cost for this remedial action ranges from
$47,900,000 to $63,300,000 depending on aquifer characteristics and the volume of
excavated solids.' No O&M costs were provided for this remedial action.
PERFORMANCE STANDARDS OR GOALS: Chemical-specific ground water clean-up goals are based
on SDWA MCLs and include PCBs 0.0005 mg/l (proposed MCL), PCE 0.005 mg/l (MCL), and
TCE 0.005 mg/l (MCL). Chemical-specific clean-up goals for ~oil, sludge, and debris
include treatment to a level of PCB 2 mg/kg. Soil with greater than PCB 1 mg/kg
remaining at the various areas will be covered with 2 feet of clean fill.
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I
RECORD OF DECISION
REMEDIAL ALTERNATIVE SELECTION
-
iit,.
D rf!'.:;' M ",:""...-,
Ofber;
SANGAMO WESTON/TWELVE-MILE CREEK/LAKE HARTWELL
PCB ,CONTAMINATION SITE
OPERABLE QNIT #1
PICKENS, PICKENS COUNTY
SOUTH CAROLINA
PREPARED BY:
U.S. ENVIRONMENTAL PROTECTION AGENCY
REGION IV
ATLANTA, GEORGIA
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DECLARATION FOR THE RECORD OF DECISION
SITE NAME AND LOCATION
Sangamo Weston/Twelve-Mile Creek/Lake Hartwell
PCB Contamination Site
Operable Unit One
Pickens, Pickens County, South Carolina
STATEMENT OF BASIS AND PURPOSE
This decision document presents the selected remedial action for
Operable Unit One of the Sangamo Weston/Twelve-Mile Creek/Lake
Hartwell PCB Contamination Site in Pickens, South Carolina,
chosen in accordance with CERCLA, as amended by SARA and, to the
extent practicable, the National Contingency Plan. This
decision is based on the administrative record file for this
site.
"
The State of South Carolina concurs with the selected remedy.
ASSESSMENT OF THE SITE
Actual or threatened releases of hazardous substances from this
site, if not addressed by implementing the response action
selected in this ROD, may present an imminent and substantial
endangerment to public health, welfare, or the environment.
DESCRIPTION OF THE REMEDY
This operable unit is the first of two that are planned for the
site. The first operable unit addresses the Sangamo Plant Site
and six other disposal areas by treating both source and
groundwater contamination.
The 'major components of the selected remedy include:
extraction and treatment by air stripping and/or carbon.
ad8orption of contaminated groundwater at the Dodgens,
Breazeale, Cross Roads and Plant sites;
discharge of treated water to the nearest viable
surface water body in accordance with applicable
regulations;
excavation of materials contaminated with greater than
1 ppm of PCBs at the Nix and Welborn properties and
transport of the materials to the Sangamo Plant site
for staging and appropriate treatment
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excavation of materials contaminated with greater than
10 ppm PCBs on the remaining four private properties
(Trotter I Dodgens, Breazeale and Cross Roads) anc
transport to the Sangamo Plant site for staging and
appropriate treatment;
backfill two feet of clean fill at each of the private
properties where contaminated materials of greater than
Ippm remain (Trotter, Dodgens, Breazeale and Cross
Roads) ;
excavate material containing greater than 25 ppm
concentration of PCBs on the Plant site;
"
treat all excavated materials to 2 ppm PCBs using
thermal separation technology on the Plant site.
During Remedial Design, a treatability study will be
conducted to .determine if any of the contaminated
materials will require additional treatment beyond
thermal separation in order to meet the 2 ppm
criteria. If necessary, a ROD amendment will be
completed to account for this required treatment; and
replace remediated soil on the Plant site.
STATUTORY DETERMINATIONS
The selected remedy is protective of human health and the
environment, complies with Federal and State requirements that
are legally applicable or relevant and appropriate to the
remedial action, and is cost-effective. This remedy utilizes
permanent solutions and alternative treatment (or resource
recovery) technologies to the maximum extent practicable and
satisfies the statutory preference for remedies that employ
treatment that reduces toxicity, mobility, or volume as a
principal element. Because this remedy will not result in
hazardous substances remaining on-site above health-based
levels, the five-year review will not apply to the source
remedial action.
~tr)~
JtA Greer C. Tidwell
7 Regional Administrator
DEC 1 9 1.
Date
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SUMMARY OF REMEDIAL ALTERNATIVE SELECTION
SANGAMO WESTON/TWELVE-MILE CREEK/LAKE HARTWELL
PCB CONTAMINATION SITE
PICKENS, PICKENS COUNTY, SOUTH CAROLINA
OPERABLE UNIT ONE
.'
PREPARED BY:
U.S. ENVIRONMENTAL PROTECTION AGENCY
REGION IV
ATLANTA, GEORGIA
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TITLE
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
TABLE OF CONTENTS
PAGE
SITE NAME AND
LOCATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
SITE HISTORY AND ENFORCEMENT ACTIVITIES...................7
HIGHLIGHTS OF COMMUNITY PARTICIPATION....................11
SCOPE AND ROLE OF OPERABLE UNIT..........................12
SITE CHA.RA.CTERISTICS..................................... 12
SUMMA.RY OF SITE RISKS.................................... 50
DESCRIPTION OF ALTERNATIVES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
SUMMA.RY OF COMPARATIVE ANALYSIS OF ALTERNATIVES..........83
SELECTED RE.MEDY.......................................... 89
10.0 STATUTORY
DETERMINATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
APPENDICES
APPENDIX A -
FIGURES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
APPENDIX 'B
- TABLES...........................................
APPENDIX C
- RESPONSIVENESS SUMMA.RY...........................
r#
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RECORD OF DECISION
SUMMARY OF REMEDIAL ALTERNATIVE SELECTION
SANGAMO WESTON/TWELVE-MILE CREEK/ LAKE HARTWELL
PCB CONTAMINATION SITE
PICKENS, PICKENS COUNTY, SOUTH CAROLINA
INTRODUCTION
The Sangamo Weston/Twelve-Mile Creek/Lake Hartwell PCB
Contamination Site (Sanqamo Weston) was proposed for inclusion
on the National Priorities List (NFL) in January 1987 and was
finalized in February 1990. The site ranks 553 out of 1218 NPL
sites.
1.0
SITE NAME AND LOCATION
..
The Sangamo Weston Site is located in Pickens County, South
Carolina (Figure 1). The ROD addresses seven (7) separate
disposal areas. Five private properties and the Sangamo Plant
site disposal areas were reported to EPA by Sangamo in their
103(c) notification to the Agency.. The private properties are;
Cross Roads Site, Breazeale Site~ Dodgens Site, Welborn Site,
and the Nix Site. The John Trotter Site, also addressed in this
Record of Decision, was discovered by EPA during subsequent
sampling investigations.
All sites are situated in the Piedmont physiographic province of
South Carolina. The Piedmont province is a broad plateau
ranging in elevation from 400 to 1200 feet above mean sea
level. The geology of the area consists of gneisses and
schists, intruded by igneous rocks, e.g., granites. The bedrock
is overlain by a layer of saprolite and slope wash deposits, and
alluvial fill ma~~rial of variable thickness (Overstreet, 1965).
The plateau region is dissected by streams which have developed
a dendritic drainage pattern. This drainage pattern is
characterized by irregular branching of streams developed upon
materials with a uniform resistance to erosion. Stream flow in
the province is to the southeast. Major streams in the province
have developed in valley bottoms upon a saprolite or slope wash
deposit base. Tributaries flow from ridge areas in an irregular
pattern to.-these major streams.
Groundwater in the Piedmont province occurs principally under
unconfined conditions in saprolite and slope wash deposits.
Groundwater is the result of direct infiltration of
.precipitation, with principal recharge areas in topographically
high areas (ridge tops) and discharge areas near streams in
valley bottoms. The groundwater flow regime in the Piedmont
province is controlled by the degree of ridge and valley
development on the plateau area.
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Groundwater in crystalline rock is generally restricted to the
upper zone of the bedrock where fractures and joints most
commonly occur. Groundwater occurence in crystalline rocks
decreases with increasing depth because joints and fractures
reduce in size and number.
Neither the saprolite nor the rock are extensively used as
supplies. Most residences and industrial or commercial
enterprises within the Piedmont, including Pickens County,
obtain drinking water from surface water sources.
water
1.1
The Sanaamo Weston Site
The Sangamo Weston Site is approximately 220 acres in size and
is located approximately one mile northwest of the town of
Pickens (Figure 2). Based on the preliminary field
investigation, the Sangamo Weston Plant site has been divided
into ten areas. These areas are identified as A through H, the
septic drain field, and the wastewater treatment facility is
exhibited on the Sangamo Weston site with elevations ranging
from 930 feet above mean sea level (MSL) at Town Creek,
bordering the site to the south, to about 1,150 feet above MSL
on the top of a linear east-west trending ridge dissecting the
property. The manufacturing building is located on the top of
the ridge at an elevation of about 1,100 feet above MSL. The
paved parking area for the manufacturing building is located
along the south flank of the ridge adjacent to the building.
The wastewater treatment facility, consisting of a stabilization
lagoon, an inactive equalization basin and a concrete-lined
equalization basin, is located south of the manufacturing
building. Discharge from the stabilization lagoon passes over a
concrete spillway under Sangamo Road and then to Town Creek.
The discharge is regulated under an NPDES permit issued by the
State of South Carolina to the current operator of the plant.
The ridge bisecting the Sangamo Weston site acts as a divide for
surface and groundwater. Surface water runoff and groundwater
on the south side of the ridge flows southward and discharges
into Town Creek. Surface water runoff and groundwater on the
north side- of the ridge drains northward and discharges into
unnamed tributaries to Twelve-Mile Creek.
Most of the Sangamo Weston property, including many of the
investigation areas, is forested. The only unforested areas
include the wastewater treatment facility, septic drain field,
Area A and Area P. The wastewater treatment facility and septic
drain fields are vegetated with grass and weeds. Area A is
covered with kudzu. Area F is surrounded with forest and is
covered with tall grass, weeds, and saplings. The manufacturing
facility, including the paved parking lot, is not forested or
vegetated. However, the lawn surrounding the facility is
grassed, with trees.
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The Sangamo Weston Plant site is located in the Piedmont section
of South Carolina on the eastern slope of the southern
Appalachian Mountains. The first ridge of the mountains is
approxLmately ten miles to the north, and the main ridge is
approxLmately forty miles to the north. These mountains
generally protect this area from the full force of cold fronts
which move southeastward toward this area .in the winter months.
The temperature rises to 90°F or above on almost half of the
days during the summer months, but usually falls to 70°F or
lower during the night. Winters are moderate, with the
temperature remaining below freezing throughout the daylight
. hours only three to four times during a normal year.
Approximately two freezing rainstorms and two or three small
snowstorms occur each winter. The mean annual temperature for
this area is 60.7°F.
1.2
The Breazeale Site
..
The Breazeale Site is approximately seven acres in size and is
located about one mile south~southwest of Pickens, on Wolf Creek
Road (Figure 3). The south and southwest portion of the site
are located on the flood plain of Wolf Creek which borders the
site to the south. Surface elevations range from 872 feet above
MSL along Wolf Creek to 910 feet above MSL at the northwest
corner of the site.
A drainage ditch borders the site to the east. This ditch
drains southward and discharges into Wolf Creek at the southeast
corner of the site. Wolf Creek borders the site to the south.
Approximately 1,500 feet to the northwest and upstream on wolf
Creek is a dam for a U.S. Soil Conservation Service lake.
Seepage from this dam creates minor flow in the drainage ditch
on the east boundary of the site. .
Surface water runoff on-site occurs as a result of direct
precipitation. Surface water on-site drains south to southeast
. toward Wolf Creek where it discharges. A smaller portion of
runoff drains eastward towards the drainage ditch. The drainage
ditch discharges into Wolf Creek. Wolf Creek flows
southwestward along the south boundary of the site.
Vegetation consists primarily of grass cover. Stands of trees,
some of which are dense with thick undergrowth occur south of
the area of waste deposition to Wolf Creek. Along the banks of
Wolf Creek are small trees, shrubs and thick marsh grass.
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1.3
The Nix Site
The Nix Site is approxLmately 7.5 acres in size and is located
approxLmately two miles northeast of Pickens. The site is
located just wegt of North Cedar Rock Road between Glassy
Mountain Church Road a~d Old Farrs Bridge Road (Figure 4).
A dirt logging road leads from North Cedar Rock Road to the site
area. An unnamed tributary to Wolf Creek is located 100 feet
west of the site. Surface elevations range from 1046 feet above
MSL at the west end of the site to 1,105 feet above MSL at the
east end of the site.
The most prominent surface feature on the Nix site is a
naturally occurring 400 foot long ravine which trends from east
to west. This ravine is approximately thirty feet deep on its
eastern end and becomes shallower toward the western end as it
opens up into a marsh. A small man made pond is located on the
far west end of the site at the mouth of the ravine. Water
feeding the pond and marsh comes from small springs at the head
of the marsh and from surface runoff. Two streams created by
the out fall from the man made pond flow into the unnamed
tributary to Wolf Creek.
Vegetation at the Nix site consists of a grass covered pasture
with wooded portions south of the ravine. Trees, tall marsh
grasses and kudzu are present in the ravine. Vegetation north
of the ravine consists of grass, weeds, small shrubs and young
trees. .
Surface water runoff outside of the ravine flows westward and
discharges directly into the unnamed tributary. Surface water
in the unnamed tributary of Wolf Creek, flows south and empties
into Wolf Creek approximately one-half mile southwest of the
site.
1.4
The Dodaens Site
The Dodgens Site is located three miles northwest of Pickens and
is adjacent to the Middle Fork of Twelve-Mile Creek (Figure 5).
The site is about 6.5 acres in size. The site is relatively
flat with surface elevations ranging from 940 feet above MSL
adjacent to the Creek to about 949 feet above MSL at the west
side of the site~ a topographic relief of about nine feet.
Sharp rises in topography occur along the north, west and south
side of the site. Elevations to the north and west exceed 970
feet.
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Middle Fork Twelve-Mile Creek flows southward along the east
boundary of the site. An unnamed tributary located along the
southern end of the site flows into the creek. A small man-made
pond is located at the south end of the site.
Nine Times Road extends in a northwest direction west of the
site. A dirt road leads from Nine Times Road to the south end
of the site. The road turns northward and extends along the
west and north perimeter of the site.
Vegetation at the Dodgens site consists of grass cover. The
hills bordering the site to the north, west and south are
covered with stands of trees and undergrowth. A dense stand of
trees and undergrowth also extends along the banks of Middle
Fork Twelve-Mile Creek at the east side of the site.
Surface water runoff on-site occurs as a result of direct
precipitation. On-site surface water drains southeastward
towards Middle Fork Twelve-Mile Creek. The creek flows
southward along the east boundary of the site and turns eastward
at the southeast corner of the site. A small unnamed tributary
located along the southern end of the site flows into the
creek. A small stream originating west of the site croSSeS Nine
Times ~oad, borders the southwest portion of the site and
discharges into the unnamed tributary. A portion of surface
water flow from the stream is diverted to a small man-made pond
located at the south end of the site. The outfall from the pond
discharges into the unnamed tributary. Surface water on the
Dodgens site drains directly to Middle Fork Twelve-Mile Creek.
1.5
The Cross Roads Site
The Cross Roads Site is about five acres in size and is located
approximately three miles southwest of Pickens (Figure 6). The
site is heavily wooded with an unnamed tributary to Twelve-Mile
Creek along the southern boundary. Surface elevations range
from 1,030 feet MSL, in the northwest portion of the site, to
960 feet MSL along the unnamed tributary bordering the southern
portion of the site, a topographic relief of approximately
seventy feet. A wide variety of domestic waste, including
bottles, cans, and car bodies are disposed throughout the site.
Penrose Drive extends in a northeast-southeast direction west of
the site. An old roadbed extends from Penrose Drive across the
northwest section of the site. This road is fenced off at both
ends where it exits the site. South of the old roadbed, in the
northwest portion of the site, is an abandoned home site. All
that remains is an abandoned well (approximately four feet in
diameter x twenty feet deep), an outhouse and various household
debris. The Cross Roads site is heavily wooded with portions
containing dense undergrowth. Dense undergrowth also extends
along the banks of the unnamed tributary of Twelve-Mile Creek.
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Surface water runoff on-site occurs as a result of direct
precipitation. On-site surface water drains southward towards
the unnamed tributary of Twelve-Mile Creek. The tributary flows
eastward along the southern boundary of the site and turns
northeastward at the southeast corner of the site. It then
continues in this general direction for approximately 1,000 feet
where it discharges into Twelve-Mile Creex.
1.6
The John Trotter Site
The John Trotter Site is about three acres in size and is
located approximately two miles north-northeast of Pickens near
Trotter Hill Road and Town Creek School Road (Figure 7). The
site is located behind a machine shop. An unnamed tributary to
Town Creek borders the northeastern portion of the site.
Surface elevations range from 1,074 feet above MSL, near Trotter
Hill Road, to 1,030 feet above MSL near the unnamed tributary to
Town Creek, a topographic relief of about forty-four feet. A
broad grassed plain is located along the west banks of the
tributary north of the site.
Vegetation at the John Trotter site consists of grass cover
surrounding the machine shop on the western end of the site with
a densely wooded area containing thick undergrowth on the
eastern end of the site. The low plain area north of the site
is vegetated with grass.
Surface water runoff on-site occurs as a result of direct
precipitation. On-site surface water drains north-eastward
towards the unnamed tributary to Town Creek. Thistributary
flows south-eastward along the northeastern boundary of the site
and empties into another unnamed tributary to Town Creek. The
second unnamed tributary continues south-southeast and empties
into Town Creek, 0.5 miles south-southeast of the site.
1.7
The Welborn Site
The Welborn Site is approx~ately four acres in size and is
located about two miles east of Pickens near Turner Road (Figure
8). The site is marked by eroded areas with ravine depths as
much as twenty-five feet. Site elevations range from 1010 feet
above MSL, at the east side of the site, to 1075 feet MSL at the
northwest portion of the site, a topographic relief of
sixty-five feet. Sharp changes in topography occur along the
sides of the ravines.
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1-
-7-
There are no streams in the Lmmediate area of the site.
Approx~ately 600 feet to the east is an unnamed tributary of
Wolf Creek which flows south. Wolf Creek is approx~ately 1400
feet south of the site and flows southwestward. Various types
of debris including household garbage, glass, scrap metal, large
metal objects, (e.g., washing machines, and industrial waste
material) are deposited in the ravines.
2.0
SITE HISTORY AND ENFORCEMENT ACTIVITIES
.'
The existing Sangamo Weston Plant was constructed in three
phases beginning in 1955 with plant construction for
electrolytic capacitor manufacturing. Additions were made in
1956 and 1961 for the power factor and mica capacitor
manufacturing operations.
The major products manufactured by the Sangamo Weston Pickens
Plant included electrolytic capacitors, mica capacitors, power
factor capacitors, and potentiometers. PCBs were used as the
dielectric fluid in power factor capacitors. Aroclor 1242, 1254
and MCS 1016 (products of the Monsanto Corporation) were used as
the dielectric fluids. In the early 1970s, the facility made a
switch to MCS 1016 (a less chlorinated PCB product of the
Monsanto Corporation), from Aroclor 1242, as the pr~
dielectric fluid.
In 1968, construction began on a 1.4 million gallon/day (MGD)
wastewater treatment facility. The facilities were completed in
1970. The system consisted of a pr~ary settling basin and a
large stabil~zation'lagoon. The treatment system was designed
for (among other_thi~gs) the neutralization of acid solutions
used in the etchi~g and forming processes and for precipitation
'of dissolved materials such as aluminum. The aluminum
precipitates settled in a pr~ary settling basin.
During the 1970s and into the 1980s, a number of significant
modifications took place to both general plant operations and
the operation of the wastewater treatment facilities. A
bentonite clay layer was added to the stabilization lagoon to
help settle PCB materials that might be present in the liquid
phase. In-addition, the drains from the two ~pregnation areas
of the power factor division were sealed off from the waste
treatment facilities. This action was taken to el~inate the
pathway of PCB entry into the wastewater system.
'Three septic tank drain field areas exist on the plant property
for treatment and disposal of sanitary wastewaters from the
plant. Two drain fields are located adjacent to each other in
an area north of the building, a third area is located southwest
of the plant.
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Waste materia~s from past production activities have been,
deposited in a number of areas on the Sangamo Weston property.
On-site landfilling activities began in the mid 1950s and
continued off and on until 1972. The material included scrap
capacitors and aluminum hydroxide sludga as well as other
assorted industrial refuse. On-site disposal of plant waste
materials was discontinued in July 1972.
Prior to 1972, general plant waste was also disposed at
privately and publicly owned off-site areas in the Pickens
County area. Some of the materials taken to off-site disposal
sites contained PCBs.
As part of the manufacturing process, all capacitors were
inspected and tested. The capacitors that failed to meet
quality control criteria were discarded along with other process
and non-process solid wastes. The solid waste was disposed of
on plant property in several locations and at a number of
off-site locations. The off-site areas addressed in this ROD
are designated as the Nix, Dodgens, Welborn, Cross Roads, John
Trotter and Breazeale sites.
In the mid-1970s, environmental monitoring programs by EPA and
the South Carolina Department of Health and Environmental
Control (DHEC) led to the detection of polychlorinated biphenyls
(PCBs) in the sediments of Lake Hartwell, its tributaries, and
in soils underlying former dump sites in Pickens County that.
were used by the Sangamo Weston, Inc. manufacturing plant in
Pickens. The PCBs in the water resources were traced to
effluent associated with the Sangamo plant, a producer of
electric capacitors. ..The plant used PCBs as a dielectric, or
non-conducting, fluid in capacitors until 1977, when the Federal
government imposed a ban on the manufacture and use of PCBs.
South Carolina DHEC Fish Study
In 1974, DHEC conducted a PCB analysis of fish in South Carolina
and detected PCBs in a fish sample at two sites in the
Twelve-Mile Creek area of Lake Hartwell. Further DHEC sampling
in 1975 and 1976 demonstrated additional PCB contamination of
. sediment and of fish, above the US Food and Drug Administration
(FDA) safe tolerance limit of 5.0 parts per million (ppm). In
August 1976, DHEC, in consultation with EPA, initiated annual
PCB testing of fish and sediment in Lake Hartwell. The same
month, EPA and DHEC issued a joint advisory against consuming
fish from any part of the lake. In October 1976, the advisory
was modified based on further study to include only the Seneca
River Arm of Lake Hartwell above Highway 24.
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-9-
In 1984, the FDA lowered the safe tolerance level from 5.0 ppm
to 2.0 ppm. EPA and DHEC expanded the .existing fish consumption
advisory to include also all fish over three pounds caught
anywhere in the lake. DHEC then reassessed its fish tissue
monitoring program and developed more rigorous sampling
procedures that would enable researchers to assess trends.
DHEC's monitoring program was revised in 1985 and initiated in
1986.
Five species of fish of similar weights for each species were
sampled from 3-5 testing stations. The stations were selected
based on historical knowledge of PCBs in the lake and were
chosen to provide comprehensive coverage. For example, SV-107
in Twelve-Mile Creek represents the most contaminated portion of
Lake Hartwell. The two stations immediately south of this
station, SV-532 and SV-235, represent a large, open-water area
of the lake as far removed from the contamination source as
possible, and SV-64l allows for cross comparisons because it is
in the other major river tributary to Lake Hartwell and is not
subject to direct PCB input~
..
The fish in DHEC's research include crappie, large mouth bass
and hybrid bass which represent over eighty percent of the game
fish caught by the public. Hybrid bass move from place to
place, potentially move in and out of contaminated areas and,
therefore, could demonstrate worst-case contaminant levels in
fish outside the advisory area. White and channel catfish also
are included in the study because they dwell along and feed off
lake bottoms where PCB molecules tend to settle and form high
concentrations. Catfish, therefore, tend to ingest more
contaminants than fish living or feeding in other layers of
lakes or in streams. .
DHEC sampled proportionate numbers of each of the five species
to account for variability in PCB levels in each species. For
example, ten samples of each of the first three species, and two
of each catfish species are taken at each station. Fewer
catfish are required because they have shown the least
variability in study findings. Each of the fish are studied in
"modified whole form" ,. minus the head and internal organs.
Except for-the catfish, which have tough and often unpalatable
skin, the fish are tested with the skin attached. The agency
uses this approach for two reasons.
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-10-
First, testing the whole fish, including the skin, provides a
more complete count of PCBs than would testing fillets. Since
people commonly eat fish as fillets, without the skin, this
testing procedure provides an added margin of safety for public
health. Second, DHEC's method avoids the data variations that
result from the filleting procedures which is tricky. Unless
each cut is exactly the same, the amount of fat included in the
sample will vary. Fat cells are prime "holders" of PCB
molecules.
e'
To date, even with refined research methods, the data of PCB
levels among fish in Lake Hartwell vary. DHEC's 1986 findings,
for example, showed that large mouth bass from the Twelve-Mile
Creek portion of the lake, ranging in weight from 1.68 - 2.98
pounds, demonstrated a PCB range of 3.64 ppm to 130 ppm. While
the fish study continues, DHEC and EPA assess whether the fish
consumption advisory should remain in effect. The most current
readings show that fish above Highway 24 register average PCB
levels above the FDA limit, from 2.22 ppm in crappie to 34.06 -
ppm in large mouth bass. Below Highway 24, only hybrid bass and
catfish exhibited the excess levels at a range of 5.48 ppm and
2.05 ppm, reflectively. The fish consumption advisory remains
in effect. It and the sampling will continue until levels fall
below the FDA tolerance limit. -
Breazeale Site
EPA and Sangamo entered into an Administrative Order on Consent
on August 11, 1986-for an immediate removal action on the
Breazeale site. In its 103c notification, Sangamo reported
depositing approximately 24,000 cubic feet of PCB waste from the
Plant. PCB levels as high as 27,000 ppm were ,found in soil
samples taken by EPA in November 1985. Two mobile homes were on
the site, but only one was occupied.
As a result of this order, the residents were relocated, the
surface drainage at the site was rerouted, fencing was
constructed to restrict site access, and a geotextile liner and
soil cap were added as an interim measure to retard the
migration of PCB contamination.
Nix Site
In its 103c notification, Sangamo reported depositing
approximately 10, 509 cubic yards of PCB waste from the Plant.
In 1980, Sangamo removed a total (from the Nix and Dodgens
sites) of 17,711 cubic yards of PCB contaminated soil and debris
and disposed of it in a landfill on the Sangamo Plant property.
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-11-
Dodaens Site
In its 103c notification, Sangamo reported depositing
approxLmately 6,822 cubic yards of PCB waste from the Plant. In
1980, Sangamo removed a total (from the Nix and Dodgens sites)
of 17,711 cubic yards of PCB contaminated soil and debris and
disposed of it in a landfill on the Sangamo Plant property.
On-Site Removal
In 1989, during the RI, area D on the plant property was found
to contain PCB levels as high as 77,800 ppm. EPA supervised the
removal of 7,285 tons of PCB contaminated soil and debris to the
GSX permitted RCRA landfill in Pinewood, South Carolina. In
addition, 6,684 capacitors over 3 pounds were taken to an
approved facility for incinerati~n.
3.0
HIGHLIGHTS OF COMMUNITY PARTICIPATION
--
Information repositories for this site were established in the
Pickens County Library System (Pickens and Easley branches) and
the R. M. Cooper Library at Clemson Universiby in Clemson, South
Carolina. Information is also available in Atlanta, Georgia in
the EPA Region IV Regional Office. Fact sheets and press
advisories were prepared prior to each public meeting.
A Community Relations Plan identifying a positive public
outreach strategy was developed at the direction of EPA Region
IV staff and submitted to the information repositories prior to
the start of work at the site. A public meeting was held in
June 1987 to present the RIfFS work plan to the public.
Fact sheets updating local citizens on activities at the site
were issued in May 1987, February 1988, November 1988, December
1989, July 1990 and September 1990. The RIwas summarized in
the December 1989 fact sheet, and an opportunity was provided
for a public meeting. No one requested that EPA conduct a
meeting at that time.
EPA held a--public meeting July 10, 1990 at the Pickens County
Senior High School in Pickens, South Carolina to present the
Feasibility Study results and the BPA's proposed plan for the
site. EPA placed public notices of the meeting in The
Greenville News and The Pickens County Sentinel and distributed
fact sheets describing BPA's proposed plan to citizens and
officials noted on EPA's site mailing list. In addition, BPA
held a briefing for local officials prior to the meeting on July
10, 1990.
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-12-
EPA also briefed the Pickens County Council at their regularly
scheduled meeting on September 17, 1990. In addition, EPA held
an availability session on September 20, 1990 in Liberty, South
Carolina. A specialist from EPA's Cincinnati, Ohio office
presented information on thermal separation and then EPA
responded to questions and comments from members of the
audience.
Transcripts of all the public meetings were made available to
the public through the administrative record for the site.
4.0
SCOPE AND ROLE OF OPERABLE UNIT
This Record of Decision addresses Operable Unit One of the
subject site. Operable Unit One consists of groundwater and
source contamination at the Plant Site and the Cross Roads, Nix,
Breazeale, Dodgens, John Trotter and Wellborn sites. This ROD
addresses the principle threats posed by contamination
associated with Operable Unit One.
Operable Unit 2 consists of the-Twelve Mile Creek basin and Lake
Hartwell. An RIfFS using fund money has been initiated at
Operable Unit Two as of September 30, 1990.
5.0
SUMMARY OF SITE CHARACTERISTICS
5.1
Breazeale ProDertv
A total of twenty-five wells have been installed at the site.
The most recent wells, BRMW-2A, 3B, 4A, 8B, 12A, 13, 14, 14A and
15 were installed as a part of the RI from May to July 1988.
Fifteen wells a~ water table -monitoring wells. Total depths
range from 17 to 40 feet below land surface. One well was
drilled to an intermediate depth in the saprolite and eight
wells were drilled to the top of bedrock. Depth to top of
bedrock as determined by auger refusal ranges from 17 feet below
land surface at BRMW-13 to 87 feet below land surface at
BRMW-2A. Two wells were drilled 20 feet into bedrock. Wells
BRMW-1 to 15 are water table monitoring wells. Well BRHW-5A is
an intermediate depth well within the saprolite. Monitoring
wells BRMW~2A, 3A, 4A, 5B, 8A, 12A and 14A are deeper wells
screened on top of bedrock. Water table well BRHW-13 also
extends to bedrock. Wells BRHW-3B and BRMW-8B are screened
fifteen to twenty feet below top of bedrock and monitor bedrock
groundwater quality. A total of thirty-one (31) soil borings
- have been installed at the Breazeale Property. Twelve of these
borings penetrated waste material and were used to characterize
the waste and determine its vertical extent. Seventeen soil
borings were drilled adjacent to the area of waste deposition to
verify the boundaries of the waste and lateral extent of PCBs in
subsurface soils.
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-13-
Most of the site is underlain by residual soils and saprolite.
Residual soils found at land surface consist primarily of sandy
and clayey silts, silty clays and minor silty sands
approximately 7 to 12 feet thick. The underlying saprolite
consists of sands with various amounts of silt, clay and mica.
The south and southwest portions of the site bordering Wolf
Creek are underlain by alluvial deposits. .. These deposits
consist of interbedded sandy, silty clays and silty, clayey
sands. The alluvium has a thickness of approximately 20 feet
and is underlain by sandy saprolite.
Groundwater flow direction is south-southwestward towards Wolf
Creek. .The horizontal groundwater gradient for most of the site
(including the area of waste deposition) is 0.05 feet per foot.
In the south to southeastern portion of the site (in the flood
plain deposits) the gradient is about 0.01 feet per foot.
Prior to the installation of the geotextile liner and soil cap
(in July and August 1987) capacitor debris was exposed at the
land surface. Waste (soil fill with. capacitor debris) is in a
trench ranging in depth from 2.5 feet below the soil cap at
boring W-2 to 11.5 feet below the soil cap at W-10. The area of
waste deposition is 200 feet long .and 50 feet wide with an area
of about 110 square yards. Total waste volume at the site is
estimated to be 2,500 cubic yards.
Ten surface waste samples were collected at sites W-1 through
W-10 and analyzed for PCBs. PCB concentrations range from 1.93
ppm at W-1 to 1800 ppm in the duplicate sample of W-5.
Analytical results for the surface waste is presented in Table
5-1.
One waste sample each was collected from soil/waste borings W-2
through 10 (a total of nine samples) and were analyzed for
PCBs. Analytical results for waste samples are included in
Table 5-1. Subsurface PCB concentrations ranged from 3.7 ppm.,
in sample W-9 (5.5-7 feet), to 1010 ppm in sample W-7 (4-5.5
feet) .
Soil/waste borings W-11, 12 and 13 were advanced through the
waste int~-the underlying soils. Split spoon samples were
collected continuously. Waste samples collected from each
boring were combined into a single composite waste sample, which
was then analyzed for the priority pollutants. Analytical
results are included in Table 5-1. Tricholorethene and
tetrachloroethene were detected at 0.0039 ppm and 0.0058 ppm,
respectively.
J
-------
-14-
A leaching procedure (EP toxicity test) was performed on the
composite waste sample from W-11, 12, 13 and the extract being
analyzed for priority pollutant volatile organic compounds and
PCBs. The only parameter detected was PCB (Aroclor 1248) with a
concentration of 0.0011 ppm.
Subsurface soils were analyzed to determine the extent of PCBs
and other constituents below the land surface adjacent to and
below the waste. Surface soil samples were collected and
analyzed to determine the extent of PCBs on the land surface.
Forty-six surface soil samples (BRSS-1 through 46) have been
collected at the Breazeale Site. All of the samples were
analyzed for PCBs only. Total PCB concentrations are summarized
in Table 5-2. Total PCB concentration ranged from none detected
at BRSS-5, 7, 12, 26, 42 and 44 to 8280 ppm at BRSS-17.
--
A total of thirty-eight subsurface soil samples have been
collected at the Breazeale site. Background soil sample W-14
(0-17 feet) and the composite sample of W-11, 12, 13 collected
below the waste were analyzed for priority pollutants. An EP
Toxicity Test was performed on a duplicate sample for W-11, 12,
13 and analyzed for priority pollutant VOCs and PCBs. Sample
BRSB-23 (10-12 feet) collected adjacent samples were analyzed
for PCBs only. Analytical results of PCBs are presented in
Table 5-3.
Total PCBs detected below the waste ranged from none detected in
samples W-4 (5.5-7 feet) and W-5 (7-8.5 feet) to 65 ppm detected
in W-9 (10-11.5 feet).. -
Twenty-four subsurface soil -samples were collected adjacent to
the waste from borings BRSB-15 through 26. At least two samples
were collected from each boring. - Total PCB concentrations
detected ranged from 0.037 ppm in BRSB-22 (3-4 feet) to 39 ppm
detected in BRSB-24 (2-3 feet). Total PCB concentrations
decreased with depth in each boring, usually to below detection
limits.
Tetrachloroethene was found in a concentration of 0.0029 ppm in
the soil composite from borings W-1l, 12 and 13, collected
directly below the waste. No VOCs were detected in the EP
toxicity test for W-11, 12, 13.
Concentrations of the semi-volatile organic, di-n-butyl
phthalate, were detected in the soil composite of borings W-11
(12-22.5 feet), 12 (3.5-20 feet), 13 (12-l8 feet) and the sample
from boring W-14 (Table 5-4). Boring W-14 serves as a source
for background information as it was installed outside and
upgradient of the area of waste deposition. Seventeen inorganic
compounds were detected in subsurface soils.
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-15-
PCBs were not detected in any of" the wells. Tetrachloroethene,
trichloroethene and total 1,2-dichloroethene (including trans
1,2-dichloroethene) were the pr~ary volatile organic compounds
detected. VOCs are migrating eastward.toward well BRMW-2 and
then southwest toward Wolf Creek. Of the seven well nests
installed at the Breazeale site, four (BRMW-2/2A, BRMW-3/3A,
BRMW-4/4A, BRMW-5/5A/5B) display a decrease in VOC
concentrations with depth. The predominant trend is to have
higher VOC concentrations near the water ~able surface and much
lower VOC concentrations in the deeper saprolite and bedrock;
indicating that VOCs within the groundwater are migrating
primarily horizontally toward Wolf Creek.
Semi-volatile and pesticide organic compounds were not detected
in the three wells (BRMW-3, 5 and 11) that were analyzed for
these parameters. Analytical results summarizing inorganic
compounds detected in BRMW-3, 5 and 11 are in Table 5-5. Well
BRMW-3 was analyzed for inorganic compounds. Only cadmium and
nickel were found in well BRMW-3. Nine metals were detected in .
. the nonfiltered sample for BRMW-5. Only five metals (magnesium,
manganese, potassium, zin~ and sodium) were in the filtered
sample from BRMW-5. Eight metals were detected in the
nonfiltered sample for BRMW-11. Only four metals (magnesium,
manganese., potassium and zinc) were detected in the filtered
sample from BRMW-11.
Stream sediment samples were collected July 30, 1986 from two
locations (BRSD-l and 2) in the ditch draining the east end of
the site and from three locations (BRSD-3, 4 and 5) located on
wolf Creek. Sample site BRSD-3 is located on Wolf Creek
up gradient of the drainage ditch and the.site. BRSD-4 was
collected from Wolf Creek adjacent to the site and BRSD-5 was
collected from Wolf Creek downgradient of the site. PCB
analytical results are presented in Table 5-6. .
PCBs were detected in samples BRSD-1 and 2 at total
concentrations of 0.32 ppm and 1.8 ppm, respectively. No PCBs
were detected in sediment samples collected from Wolf Creek.
Several surface water samples have been collected from the
drainage ditch and Wolf Creek at the same locations as stream
sediment samples. A summary of detected parameters is presented
in Table 5-7. VOCs have not been detected in samples BRSW-1 and
2. Only small concentrations of VOCs have been detected in
samples collected from BRSW-3, 4 and 5.
5.2
Nix Site
A removal of waste was conducted in 1980. Soil borings were
drilled to determine the horizontal and vertical extent of any
remaining waste. Nine soil borings were drilled at locations on
the site. Depths of soil borings ranged from 3.7 to 7.0 feet
below land surface. Soils underlying the Nix site are residual
. in nature and consist of fine to coarse grained silty sand and
clayey sand with zones of sandy silt and clayey silt.
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-16-
During field activities for the Remedial Investigation, an area
containing waste was identified on the south bank of the ravine
near the west end. The waste at this location includes
foil-wrapped capacitors, capacitor paper and foil fragments.
This waste covers a surface area of about 50 square yards.
Total volume of this waste deposit is approximately 20 cubic
yards. Domestic waste (furniture parts and old roofing
shingles) is also disposed in separate areas of the ravine.
Capacitor waste, including foil-wrapped capacitors, capacitor
paper and foil fragments, is scattered on the ground surface
within the ravine and on the land surface 100 feet to either
side of the ravine.
A sample of waste was taken from soil boring NXSB-4, 0.7 to 0.8
feet below land surface. Because of the limited volume of
sample at this site, sample NXSB-4 (0~7 -0.8) was analyzed for
VOCs only. Sample NXSS-22 was collected from waste piled at the
east side of the ravine and analyzed for the HSL parameters.
Analytical results for waste are presented on Table 5-8. The
only VOC detected in Sample NXSB-4 (0.7-0.8) was methylene
chloride at 0.008 ppm. Sample NXSS-22 also contained methylene
chloride at 0.008 ppm.
No semi-volatile or pesticide compounds were detected. PCBs
were detected in the waste sample NXSS-22 at a concentration of
13 ppm -(Aroclor 1254).
Seventeen of the HSL inorganic compounds were detected in the
waste sample NXSS-22.
Surface soil samples were collected and analyzed to determine
the extent of PCBs on the land surface. Twenty-one surface soil
samples (NXSS-1 through NXSS-21) were collected. NXSS-22 was an
HSL sample of the waste in the ravine and is not surface soil.
Samples NXSS-1 to 21 were analyzed for PCBs ,only. Analytical
results are presented on Table 5-9. PCBs were not detected in
six samples. Total detected PCB concentrations ranged from
0.130 ppm at NXSS-2 to 66 ppm at NXSS-13.
Subsurfac~soils were analyzed to determine the extent of PCBs
and other constituents below the land surface and below waste.
Ten subsurface soil samples were collected during the Remedial
Investigation activities. One of these samples was a composite
collected from borings NXSB-4, 4A and 4B and analyzed for the
HSL parameters, except VOCs, which were taken from NXSB-4. The
nine remaining samples were analyzed for PCBs only. Table 5-10
presents results for PCB analysis of subsurface soils. Table
5-11 presents these HSL parameters detected in composite sample
-------
-17-
NXSB-4, 4A, 4B collected below the waste. The compound styrene
was detected in soil sample NXSB-4, 4A, 4B at 0.009 ppm.
Fourteen inorganic compounds were detected in composite sample
NXSB-4, 4A, 4B and are included in Table 5-11.
Four monitoring wells (NXMW-1, 2, 3 and 4) were installed at the
Nix site. Wells NXMW-2 and NXMW-3 were installed in the
saprolite above bedrock. Wells NXMW-1 and NXMW-4 were installed
into bedrock.
.'
Wells NXMW-1, 2 and 3 are water table wells. NXMW-1 is located
upgradient of the site and provides background groundwater
quality data. The water table at well NXMW-1 occurs in
bedrock. Locations for NXMW-2 and 3 were selected to monitor
ground~ter quality on either side of the ravine, downgradient
of past waste disposal areas and present scattered waste. In
the area of well NXMW-4, the water table is within two feet of
the ground surface and the top of bedrock is only three to four
feet below land surface. For this reason, a water table well
could not be installed. Therefore, well NXMW-4 was installed
into rock and monitors bedrock water conditions directly
downgradient of the ravine. .
Groundwater samples were collected from monitoring wells NXMW-1,
2, 3 and 4 on September 8 and 9, 1988 and December 6, 1988.
First round samples were analyzed for PCBs, VOCs, pH, specific
conductance, suspended solids, alkalinity, hardness, chlorides,
and sulfate. Well NXMW-3 was also analyzed for all of the HSL
parameters. Both filtered and non-filtered samples were
collected for inorganic analysis. Second round samples were
analyzed for PCBs, pH, specific conductance, suspended solids,
alkalinity, hardness, chlorides and sulfate. Table 5-12
summarizes results for detected parameters.
PCBs were not detected in any of the wells during both sampling
rounds. Volatile organic compounds were detected in the first
round groundwater s~ple for well NXMW-4.
Semi-volatile and pesticide organic
in the HSL analysis of well NXMw-3.
well NXMW-3 for inorganic analysis.
detected in the sample.
Stream sed~ent samples were collected from 12 locations.
Sed~ent sample location NXSD-1 was chosen to determine PCB
concentrations in sed~ents in the eastern portion of the
ravine. Sample location NXSD-2 is located adjacent to the
of waste deposition near the western end of the ravine and
compounds were not detected
Samples were obtained from
Ten inorganic compounds were
area
-------
-18-
provides PCB concentrations in sed~ents in the downgradient
area of the ravine. NXSD-3 and 4 are located in the marsh
immediately downgradient of the ravine. Sed~ent sampling
locations NXSD-4, 6, 7 and 8 are located in various areas of the
pond. Sampling lo~ations for NXSB-9 and 10 are located in two
outfall streams downgradient of the pond. NXSB-11 is located in
the unnamed tributary to wolf Creek upgradient of the site. The
sampling location for NXSD-12 is located on the unnamed
tributary to wolf Creek downgradient of the site. These samples
were analyzed for PCBs to determine the presence and extent of
PCB migration along surface drainage routes. Analytical results
are presented on Table 5-13.
PCBs were not detected in sediment sample NXSD-l located in the
upgradient portion of the ravine. Total PCB concentration at
NXSD-2, was 3.9 ppm. Sed~ent samples NXSD-3 and 4, had total
PCB concentrations of 1.74 and 1.62 ppm, respectively. PCB,
concentrations in the sed~ent samples NXSD-5, 6, 7 and 8 ranged
from 0.79 ppm at NXSD-8 to 1.56 ppm at NXSD-8. Of the two
sediment samples taken from'the pond outfall streams (NXSD-9 and
NXSD-10), PCBs were only detected in NXSD-9 at 0.65 ppm. There
were no PCBs detected at NXSD-11 and NXSW-12 located on the
unnamed tributary to Wolf Creek located up and downgradient
respectively at the Nix site. '
One round of surface water samples was collected at samples
sites NXSW-2, 4, 6, 9 10, 11 and 12. A surface water sample
from the sediment sample location NXSD-1 was proposed in the RI
Work Plan. However, there was no water at NXSD-1 at the t~e of
sampling and a sur~ace water sample could' not be obtained.
Surface water samples were analyzeQ for PCBs, pH and specific
conductance. -
PCBs were not detected in any of the surface water samples.
5.3
Dodaens Site
Twenty-.four soil borings were drilled in locations on the
Dodgens Site. Soils underlying the Dodgens site consist of
silty sands, silty clays and clayey silts. Thin layers of
capacitor debris (capacitor paper, foil) were present in some
borings at shallow depths (less than three feet below land
surface). Soil borings and exploratory borings were drilled as
part of the Remedial Investigation to confirm actual waste
presence and determine horizontal and vertical extent of the
, area of waste deposition. Waste samples were analyzed to
characterize the waste and identify the constituents to be
addressed further.
-------
-19-
Waste was penetrated by borings DGSB-1, 3, 3C, 4A, 4C, 5C and
6. Following installation of the soil borings, fifty-three
exploratory borings were drilled to further define the area of
waste deposition. Waste, in the form of capacitor debris (foil,
paper and mica plates), is present in six areas throughout the
Dodgens site. The smallest area, located at the south end of
the site has an approximate area of 20 square yards. The
largest area, located at the northeast end of the site, has an
approx~ate area of 395 cubic yards.
Waste thickness ranges from traces
DGEB-21, 26, 38 and 49 to 1.0 feet
volume at the site is est~ated to
yards.
A sample of waste collected from soil boring DGSB-4C at 0.5 to
2.0 feet below land surface designated DGSB-4C (0.5-2.0 feet)
and a composite sample of waste collected from soil borings 1,
3C and 6 designated DGSB-1, 3C, 6 were analyzed for the HSL
parameters (VOC samples for"waste collected from borings DGSB-1,
3C and 6 were analyzed separately and not composited).
Analytical results for waste are presented in Table 5-14 and the
upgradient surface soil sample DGSS-1 results are presented in
Table 5-15.
«0.1 foot) at borings
at DGEB-50. Total waste
be approx~ately 100 cubic
Fourteen semi-volatile compounds were detected in the composite
waste sample DGSB-l, 3C, 6. PCBs were detected in waste sample
DGSB-l, 3C, 6 and DGSB-4C (0.5-2-2.0 feet). Total PCBs detected
in composite waste sample DGSB-1, 3C, 6 was 470 ppm. Total PCBs
found in waste sample DGSB-4C (0.5-2.0 feet) was 30ppm.
The inorganic, cadmium, copper, iron, lead, manganese, mercury,
silver, vanadium and zinc were found in the waste. Subsurface
soils were analyzed to determine the extent of PCBs and other
constituents below the land surface and below the waste.
Surface soil samples were collected and analyzed to determine
the extent of PCBs on the land surface.
Surface soil-samples (DGSS-1 through DGSS-19) were collected at
various locations on the site. DGSS-1 was analyzed to determine
the extent-of PCBs and other constituents below the land surface
and below the waste. Surface soil samples were collected and
analyzed to determine the extent of PCBs on the land surface.
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-'20-
DGSS-1 was analyzed for the HSL parameters. Analytical results
are presented on Table 5-15. Samples DGSS-2 through DGSS-18
were analyzed for PCBs only. Total PCB concentrations are
summarized in Table 5-16. Total PCB concentrations ranged from
0.2 ppm at DGSS-8 to 270 ppm at DGSS-19. In addition to PCBs,
upgradient surface soil sample DGSS-1 had several inorganic
compounds detected.
In addition to composite waste sample DGSB-1, 3C, 6 and waste
sample DGSB-4 (0.5-2.0 feet), twenty-four subsurface soil
samples were analyzed. One sample DGSB-3C (6-10 feet) was
analyzed for the HSL parameters. The remaining twenty-four
subsurface soil samples were analyzed. One sample DGSB-3C (6-10
feet) was analyzed for the HSL parameters. The remaining
twenty-five samples were analyzed for PCBs only. Analytical
results of PCBs are presented in Table 5-17. Additional
parameters detected in the HSL analysis of sample DGSB-3C (6-10
feet) are presented in Table 5-18. The inorganic compounds'
magnesium and silver, were detected in DGSB-3C (6-10 feet).
Total PCBs detected in the waste were 30 ppm in DGSB-4C (0.5-2.0
feet) and 470 ppm in the composite waste sample DGSB-1, 3C and
6.
The highest concentration of PCBs, 2700 ppm, was detected in
boring DGSB-5 at the depth interval 4-6 feet below land
surface. Boring DGSB-5C located west of DGSB-5 had a
concentration of 150 ppm in the sample collected 4 to 6 feet
below land surface. Soil samples collected from borings DGSB-3C
(3.0-4.5 feet) and.DGSB-5A (4-6 feet) had total PCB
. concentration of 53.7ppm and 55 ppm respectively. The total
PCB concentration in the soil sample collected from DGSB-3C at 6
to 10 feet below land surface was 0.4 ppm.
The remaining twenty-one soil samples had PCB concentrations
ranging from nondetected in five samples to 22 ppm detected in a
sample collected from boring DGSB-1 (3.5-5.0 feet). Multiple
samples (2 or 3) of soil and waste were obtained from each of
five soil borings, DGSB-1, 3C, 4C, 5C and 6. Samples collected
from boring DGSB-4C had decreasing PCB 'concentrations with
depth. Wa8te collected at 0.5 to 2 feet below land surface
(composited with waste collected from borings DGSB-1 and 6) had
a total PCB concentration of 30 ppm. No PCBs were detected in
the soil sample collected below the waste at 3.0 to 4.5 feet
below land surface, and 0.082 ppm total PCBs were detected in
the soil sample collected at 5.5 to 7.0 feet below land
surface. The remaining four bore holes also exhibited decreases
in total PCB concentrations with depth.
Five monitoring wells were installed at the Dodgens site. Four
wells (DGMW-l through 4), are water table monitoring wells.
Well DGMW-3A is a deeper well and for.ms a well pair with DGMW-3.
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-21-
The Dodgens site is situated on flood plain deposits of Middle
Fork Twelve-Mile Creek. . These deposits extend from land surface
to depths ranging from nine feet below land surface at well
DGMW-4 to 18 feet below land surface of well DGMW-3A.
Wells DGMW-1, 2, 3, and 4 are water table monitoring wells.
DGMW-1 is located upgradient of the site and provides background
groundwater quality data. Wells DGMW-2, 3 and 4 monitor
groundwater immediately downgradient of the areas of past and
present waste deposition. Well DGMW-3A is a deeper well
screened on top of bedrock and is located adjacent to well
DGMW-3. Well DGMW-3A monitors deeper groundwater of the area of
waste deposition. The water table ranges from five to seven
feet below land surface.
.'
First round samples were analyzed for PCBs, VOCs, pH, specific
conductance, suspended solids, alkalinity, hardness, chlorides
and sulfate. Because several semi-volatile compounds were
detected in the HSL analysis of composite waste sample DGSB-1,
3C, 6, first round groundwater samples were also analyzed for
semi-volatile compounds. Well DGMW-3 was also analyzed for all
of the HSL parameters during the first round sampling. Both
filtered and non-filtered samples were collected for inorganic
analysis. Table 5-19 summarizes analytical results for detected
parameters.
No volatile organic compounds (VOCS) were detected in
groundwater during the first sampling round in August 1988;
however,VOCs were detected in groundwater collected from wells
DGMW-2, 3 and 4 in the second round. Trichloroethene was
detected in wells DGMW-2 and ~ at concentration of 0.012 ppm and
0.019.ppm, respectively. Tetrachloroethene was detected in
groundwater collected from wells DGMW-2, 3 and 4 at
concentrations of 0.005 ppm, 0.005 ppm and 0.006 ppm,
respectively. During the first sampling round, all five wells
were analyzed for the semi-volatile compounds. Bis
(2-ethylhexyl)-phthalate was detected in wells DGMW-1, 3 and 3A
at concentrations of 0..011 ppm, 0.012 ppm, and 0.013 ppm,
respectively~ Di-n-octylphthalate was detected in the
groundwater sample collected from well DGMW-3A at a
concentration of 0.012 ppm. During the first sampling round,
samples were obtained from downgradient well DGMW-3 for
inorganic analysis. Twelve inorganic compounds were detected in
the sample.
Stream sediment samples were collected from six locations on
Middle Ford Twelve-Mile Creek and its tributaries. Samples were
analyzed for PCBs. Sediment sampling analytical results are
presented in Table 5-20. Sampling site DGSD-1 is located on
Middle Fork Twelve-Mile Creek upstream of the Dodgens site and
provides background stream sediment quality. Sample site DGSD-2
-------
-22-
is located on ~ddle Fork Twelve-~le Creek adjacent to the
southeast corner of the site and upgradient to the unnamed
tributary bordering the site to the south. This sample was
collected to determine PCB concentrations downgradient of the
site, but upgradient of the unnamed tributary. Sample site
DGSD-3 is located on the unnamed tributary upstream of the pond
outfall. Sample site DGSD-4 is located on. the unnamed tributary
downstream in the sediment as a result of the pond discharge.
Sample site DGSD-5 is located on ~ddle Fork Twelve-~le Creek
downstream of the unnamed tributary and was sampled to determine
if PCBs are present downgradient of all site drainage. Sediment
sample site DGSD-6 is located on the pond located near the south
end of the site.
~
No PCBs were detected in upstream sediment sample DGSD-l. Total
PCB concentrations of 1.0 ppm and 0.36 ppm (duplicate) were
detected in sediment sample DGSD-2. This sample site is located
at a point where surface water runoff from the site discharges
into Middle Fork Twelve-~le Creek. No PCBs were detected in -
sample DGSD-5 located further downstream. No PCBs were detected
at DGSD-3 and DGSD-4 located on the unnamed tributary. . A total
PCB concentration of 2.31 ppm was detected in sediments in the
pond (DGSD-6).
One round of surface water samples were collected at sample
sites DGSW-1 through 6. These sample points correspond with
sediment sample points DGSD-1 through 6. Samples were analyzed
for PCBs and semi-volatile compounds pH and specific
conductance. A summary of detected parameters are presented in
Table 5-21.
No PCBs were detected in any of the surface water samples. No
semi-volatile compounds were detected in upgradient surface
water sample DGSW-1 and sample DGSW-6 collected from the pond.
The semi-volatile compound bis (2-ethylhexyl) phthalate was
detected in DGSW-2, DGSW-3, DGSW-4, DGSW-5 and the duplicate
sample for DGSW-6. .
5.4
Cross Roads Site
Soils at the Cross Roads site were characterized through
examination of soil samples collected from monitoring well
borings and soil borings. Eighteen soil borings were drilled to
determine the vertical extent of the waste, to characterize the
waste and to determine the presence of waste constituents in
underlying soils. Soils underlying the Cross Roads site consist
of silty sands and sandy silts with varying amounts of clay.
Waste, in the form of capacitors and capacitor debris (paper,
foil, and mica plates) were penetrated by boring CRSB-3, 4, 5,
7B and 7C.
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-23-
Following the installation of the soil borings, eighteen
exploratory borings were drilled to further determine the
horizontal and vertical extent of the area of waste deposition.
Waste, in the form of capacitors and capacitor debris, is
present in a~ area near the southern border of the site. This
area has an approximate area of 1700 square yards.
The northern extent of the waste was not determined in the
vicinity of exploratory boring CREB-18. North of boring CREB-18
is heavily wooded and prevented movement of the drill rig.
-
As shown on Tables 5-22 and 5-23, waste thickness ranged from
approximately 0.1 foot at borings CREB-2 and 18 to 2.6 feet at
CRSB-~C. Depth to the top of waste ranged from 0.2 to 1.8 feet,
below land surface. The horizontal extent of the' areas of waste
deposition were used along with waste thickness to determine the
volume of waste present at the Cross Roads Site. Total volume
of Sangamo Weston process waste at the site is approximately 400
cubic yards. '
A composite sample was made of waste collected.from soil boring
CRSB-3, 5, 7B and 7C and was analyzed for the HSL parameters
(VOC samples for waste from borings CRSB-3, 5 and 7B were
analyzed separately and not composited. Additionally, a sample
of waste was collected from boring CRSB-4 and analyzed for VOCs
only. Analytical results for waste are presented in Table 5-24.
The volatile organic compounds, total 1,2-dichloroethene and
trichloroethene were detected. No semi-volatile or pesticide
compounds were detected in the composite waste sample. PCBs
were detected in the composite waste sample CRSB-3, 5, 7B, 7C
with a total PCB concentration of 118 ppm.
The inorganic compounds, cadmium, zinc and cyanide were
detected.
Subsurface soils were analyzed to determine the extent of PCBs
and other constituents below the land surface and below the
waste. Surface soil samples were collected and analyzed to
determine the extent of PCBs on' the land surfa~e.
Twenty-seven surface soil samples (CRSS-1 through CRSS-27) were
collected. CRSS-1 was analyzed for the HSL parameters.
Analytical results are presented on Table 5-25. Samples CRSS-2
through CRSS-27 were analyzed for PCBs only. Total PCB
concentrations are summarized in Table 5-26. Sample CRSS-9,
located in the south central POrtion of the area of waste
deposition had a total PCB concentration of 410 ppm.
-------
-24-
In addition to composite waste sample CRSB-3, 5, 7B, 7C and
waste sample CRSB-7B (1.7-2), twenty-seven subsurface soil
samples were analyzed. One sample, CRSB-4 (5-7), was analyzed
for the HSL parameters. The remaining twenty-six samples were
analyzed for PCBs only. Analytical results of PCB
concentrations are presented in Table 5-27. Additional
parameters detected in the HSL analysis of-sample CRSB-4 (5-7)
are presented in Table 5-28.
The pesticide heptachlor epoxide was found in sample CRSB-4
(5-7) at 0.01 ppm. PCB concentrations of subsurface samples
ranged from none detected in nineteen samples to 3.5 ppm
detected in a sample collected from boring CRWB-2 (0.0-1.5).
5.6 John Trotter Site
.'
Twenty-eight soil borings were drilled in locations at the John
Trotter Site. Soils underlying the John Trotter Site consist of
silty sands, silty clays and clayey silts. Thin layers of
capacitor waste (capacitor paper, ~oil) were present in some
borings at shallow depths (less than three feet) below land
surface. Soil.borings and exploratory borings were drilled as
part of the Remedial Investigation to confirm actual waste
presence and determine horizontal and vertical extent of the
area of waste deposition. Waste samples were analyzed to
characterize the waste and identify the constituents.
Waste was penetrated by borings JTSB-2, 2A, 3, 3A, 5B, 5C, and
5D. Following installation of the soil borings, six exploratory
borings were drilled to further define the area of waste
deposition. Waste was not encountered in any of the exploratory
borings.
Waste, in the form of capacitor foil and paper, is present in
two areas on the John Trotter Site. The larger of the two waste
areas is located in an embankment along the'north edge of the
gravel road. The ,waste area is about 80 feet long and 15 feet
wide and comprises an area of about 135 square yards. Waste
thickness as indicated by borings JTSB-2, 2A, 3 and 3A is about
o . 5 feet with the tq.p of waste about one foot below land
surface. The second waste area is located about 25 feet
northeast of the larger waste area in a lower, flat turnaround
area for the garage. The waste area is approx~ately 18 feet
long and 15 wide and comprises an area of about 270 sq. ft.
Waste thickness as indicated by borings JTSB-5B, 5C and 5D was
about 0.5 to 1 foot with depth to the top of waste at 1.5 to 2
feet below land surface. Total waste volume at the John Trotter
Site is est~ated to be approx~tely 100 cubic yards.
-------
-25-
A composite sample of waste, collected from borings JTSB-2A (1.0
to 1.5 feet below land surface), JTSB-3A (1.0 to 1.5 feet below
land surface) and JTSB-50 (1.5 to 1.9 feet below land surface),
designated JTSB-2A, 3A, 50 was analyzed for HSL parameters (VOC
samples of waste collected from borings JTSB-2, 3 and 5B were
analyzed separately and not composited). Analytical results are
presented in Table 5-29.
Two volatile organic compounds, tetrachloroethene and
trichloroethene were detected in the waste. PCBs were detected
in the composite waste sample JTSB-2A, 3A, 50 at a concentration
of 750 ppm.
..
Eight inorganic compounds, antLmony, barium, cadmium, copper,
lead, silver, mercury and zinc were detected at concentrations
above the range in Table 5-30. Barium and zinc are within the
range of concentrations in Table 5-31. Antimony, cadmium and
silver are not included in Table 5-31. Machine shop debris was
present on the land surface. adjacent to the garage.
Thirty-seven surface soils samples (JTSS-1 through JTSS-37) were
collected at the site. JTSS-l was analyzed for the HSL
parameters. Table 5-32 summarizes parameters detected in
JTSS-1. Samples JTSS-2 through JTSS-37 were analyzed for VOCs
and PCBs only. VOCs detected along with total PCB
concentrations are summarized in Table 5-33.
PCBs were detected in thirty two of the thirty-seven surface
soil samples collected. No PCBs were detected in samples
JTSS-1, 15, 21, 26 and ~5. Total PCB concentrations ranged from
0.053 ppm at JTSS-24 to.97 ppm at JTSS-10. JTSS-10 and JTSS-30,
with total PCB concentrations of 97 ppm and 94 ~pm, are the only
samples to exceed 50 ppm. The remaining samples had PCB
concentrations ranging' from 0.053 ppm to 14 ppm.
In addition to the composite waste sample JTSB-2A, 3A, 50,
thirty subsurface soil samples were analyzed. One sample,
JTSB-5B (6.5-8.0 feet) was analyzed for HSL parameters. The
. remaining twenty-nine samples were analyzed for PCBs only.
Analytical results are presented in Table 5-34. Additional
parameters.. detected in the HSL analysis of sample JTSB-5B (6.5 -
8 feet) are presented in Table 5-35.
PCBs were detected in fifteen of the
JTSB-3 had a total PCB concentration
was collected below the larger waste
PCBs detected in JTSB-3 (5-6.5 feet)
in the overlying waste (73 ppm).
thirty samples collected.
of 120 ppm. This sample
area. The 120 ppm total
is much lower than detected
-------
-26-
Composite waste sample JTSB-2A, 3A, 5D collected from both areas
of waste deposition had a total PCB concentration of 730 ppm.
Soil samples collected from borings JTSB-3 and JTSB-5B had
varying PCB concentrations with depth. JTSB-3 had a PCB
concentration of 27 ppm at 2.5 to 4 feet below land surface (1
to 2.5 feet below the bottom of waste) and had a PCB
concentration of 120 ppm at 5 to 6.5 feet below land surface
(3.5 to 5 feet below the bottom of waste). JTSB-5B had a PCB
concentration of 0.42 ppm at 4 to 5.5 feet below land surface (1
to 2.5 feet below waste) and a concentration of 2.7 ppm at 6.5
to 8 feet below land surface (3.5 to 5 feet below waste).
Ground water samples were collected from wells JTMW-1, 2, 3, 3A,
3B and 4 in November 1988 and February 1989. Samples from both
sampling rounds were analyzed for PCBs, pH, specific
conductance, suspended solids, alkalinity, hardness, chlorides
and sulfate. Additionally, during the first sampling round all
wells were sampled for VOCs and well JTMW-3 was analyzed for all
of the HSL parameters. Table 5-36 summarizes analytical results
for detected parameter~. .
No PCBs were detected in any of the wells during either sampling
event.
During the November 1988 sampling, only well JTMW-3 was analyzed
for HSL parameters. No semi-volatile or pesticide compounds
were detected. Seventeen inorganic compounds were found in the
sample. Inorganic compound concentrations in the sample were
low, therefore, me~als were not included in the analytical
. parameters for the second round of ground water samples
collected in February 1989. .
Stream sediment samples were collected in November 1988 from two
locations on the unnamed tributary to Town Creek. Samples were
analyzed for PCBs and volatile organic compounds. Analytical
results are presented in Table 5-37. Sampling site JTSD-1 is
located on the unnamed tributary to Town Creek upstream of the
John Trotter Site and provides background stream sediment
quality. Sediment sampling site JTSD-2 is located on the
unnamed tributary downstream of the site and was sampled to
determine if PCBs are present downgradient of site drainage.
No PCBs or volatile organic compounds were detected in upstream
sediment sample JTSD-1. A PCB concentration of 0.092 ppm was
detected in JTSD-2 downstream of the John Trotter Site. This
PCB concentration probably occurred as a result of erosion of
PCB bearing soils with surface water runoff on-site.
One round of surface water samples were collected in November
1988 at sampling sites JTSW-1 and 2. These sampling points
correspond with and serve the same purpose as sediment sampling
points JTSD-1 and 2. Surface water samples were analyzed for
VOCs and PCBs. No VOCs or PCBs were detected in either of the
-------
surface water samples.
-------
-27-
5.7 Sanaamo Piant Site
3.2.1 Sources
Area A
Soil borings and exploratory trenches were installed as part of
the Remedial Investigation to determine actual waste presence,
and horizontal and vertical extent of the area of waste
deposition in Area A.
.,'
Nine soil borings were drilled in Area A.
aluminum hydroxide sludge, was penetrated
2A, 3, 3A and 4B. Waste was not found in
soil borings, SASB-4, 4A and 4C.
Following installation of the soil borings, twelve exploratory
trenches, labeled SAST-1 through 12, were excavated to further
determine the horizontal and vertical extent of the areas of
waste deposition. Exploratory trenches were excavated with a
backhoe and visually described by the on-site RMT geologist.
Waste, in the form of
by borings SASB-1, 2,
the three remaining
The horizontal extent of waste was determined by soil borings
and exploratory trenches. Waste sludge is present in two
adjacent locations at Area A. The northern area of waste
deposition has a total area of 280 square yards and the southern
has a total area of 170 square yards. Waste thickness ranges
from 1 foot at boring SASB-3 to 9 feet on the west end of trench
SAST-2. The volume of waste present in Area A is 500 cubic
yards. Waste volume calculations for all sites were presented
in detail" in the Feasibility Study.
Two composite samples of waste were collected from Area A and
analyzed for HSL parameters. One composite sample was obtained
from soil borings SASB-l and SASB-2A in the northern waste area,
and one composite sample was obtained from soil borings SASB-3A
and SASB-4B in the southern waste area. VOC samples for waste
collected from borings SASB-l, 3A, 3A and 4B were analyzed
separately and not composited. Analytical results for waste are
presented in Table 5-38.
Several volatile organic compounds were detected. The volatile
organic compounds methylene chloride and acetone were detected
in most samples collected (waste, soils, sediments and water) at
all of the sites. Carbon disulfide was also detected in several
samples at some of the off site areas.
Only four of the waste samples had VOCs other than methylene
chloride or acetone. These concentrations were all less than 1
ppm. These compounds were not detected in any of the other
waste samples. VOCs were not detected in waste collected form
the north waste area.
-------
-28-
PCBs were found in both of the composite waste samples, SASB-l,
2A and SASB-3A, 4B. Total PCB concentration in SASB-l, 2A was
17.4 ppm. Sample SASB-3A, 4B had a total PCB concentration of
22,900 ppm. As the sludge is from the wastewater treatment
facility, this is expected.
Table 5-34 presents HSL inorganic compound concentrations
detected in upgradient surface soils for all of the sites and
areas addressed in the Remedial Investigation. Table 5-31
presents the range of selected inorganic compounds detected in
soils in Georgia, South Carolina and North Carolina obtained
from "Chemical Analyses of soils and Other Surficial Materials
of the Conterminous United States" (USGS, 1981). The range of
concentrations on Tables 5-30 and 5-31 are used for comparison
with downgradient waste and soil samples for each site or area.
The inorganic compounds aluminum, arsenic, ~opper manganese and
silver were found at concentrations higher than the range of
concentrations detected in the upgradient surface soil samples
(Table 5-34). Copper and manganese were below the range for GA,
SC and NC (Table 5-31). .
Nineteen surface soil samples (SASS-l through SASS-19) were
collected. SASS-1 was analyzed for the HSL parameters. Samples
SASS-2 through SASS-19 were analyzed for PCBs only. Analytical
results for SASS-1 are presented on Table 5-39. PCB
concentrations detected in all surface soil samples are
summarized in Table 5-40. PCBs were detected in nineteen
surface soil samples. Total PCB concentrations ranged from 2.4
ppm at SASS-18 to 1880 ppm at SASS-12. Thirteen surface soil
samples inc1uding.upgradient sample SASS-1, exceeded 50 ppm
total PCBs. Ten of these samples were collected in the
. immediate vicinity of the areas of waste deposition. PCBs were
also detected in surface soil samples collected downgradient at
Area A, two of which exceeded 50 ppm (SASS-16 and SASS-19).
In addition to composite waste samples SASB-1, 2A and SASB-3A,
4B, nine subsurface soil samples were collected from below or
adjacent waste, and analyzed for PCBs. Additionally, one sample
collected below the waste from boring SASB-3A, designated
SASB-3A (11-13), was analyzed for HSL parameters. Analytical
results for PCBs are presented in Table 5-41. Additional
parameters detected in the HSL analysis of sample SASB-3A
(11-13) are presented in Table 5-42. Total PCB concentrations
. are also shown on waste ranged from 17.4 ppm in composite
SASB-1, 2A, collected from the north waste area to 22,900 ppm in
composite sample SASB-3A, 4B collected from the south waste
area. Only four subsurface soil samples, SASB-3 (8-0), SASB-3A
(11-13), SASB-4A (4-6) and SASB-4C (13-15) had PCB
concentrations exceeding 50 ppm.
-------
-29-
Soil sample SASB-2 (6-8) collected adjacent to the north waste
area and samples SASB-1 (6-8), SASB-1 (9-11), SASB-2A (6-8) and
SASB-2A (9-11), collected below the north waste area had total
PCB concentrations ranging from 0.053 ppm to 2.67 ppm (much
lower than the 17.4 ppm detected in the waste in the north
area). None of the waste or subsurface soil samples collected
at the north waste area exceeded 50 ppm total PCBs.
Subsurface soil sample SASB-3A (11-13) collected below the waste
in the south area was analyzed for HSL parameters. No VOCs or
pesticides were detected. Only one semi-volatile compound, bis
(2-ethylhexyl) phthalate, was detected. One inorganic compound,
cobalt, exceeded the range of concentrations on Table 5-31.
Cobalt was detected at lower concentrations in the waste.
Silver was detected above the range of concentrations in Table
5-30.
Soil samples were collected at 0 to 1.5 feet and 1.5 to 3 feet
below land surface at proposed locations for wells SAMW-2 and
SAMW-3 located adjacent to the south area of waste deposition
and analyzed for PCBs. Analytical results are also included in
Table 5-41. Total PCB concentration ranged from 13.1 ppm to 340
ppm.
Ground water samples were collected from all Area A wells
(SAMW-1, 2 and 3). Samples were analyzed for PCBs, VOCs, pH,
specific conductance, suspended solids, alkalinity, hardness,
chlorides, and sulfate. In addition, well SAMW-3 was analyzed
for all of the HSL.parameters. Samples were collected for
inorganic analysis. Table 5-43 summarizes analytical results
for parameters detected in all samples.
No PCBs were detected in any of the Area A wells.
Trichloroethene was detected in all three wells in January
1989. Tetrachloroethene was also detected ~n all three wells at
similar concentrations, 0.005 ppm to 0.007 ppm. Total
1,2-dichloroethene was detected in well SAMW-3 at 0.018 ppm in
October 1988, and 0.022 ppm in January 1989. '
Semi-volatile and pesticide compounds were not detected in the
one HSL analysis of SAMW-3.
During the first sampling round in October 1988, ground water
samples were obtained from well SAMW-3 and analyzed for
inorganic compounds. Metal concentrations were low; therefore,
metals were not included in the analytical parameters for the
second round of ground water samples collected in January 1989.
BPA was notified of the elimination of metals and semi-volatile
compounds from the analytical parameter list in a letter dated
January 10, 1989.
-------
-30-
Area B
Soil borings, exploratory borings, and one exploratory trench
were installed as pa.rt of the Remedia.l Investigation to
determine waste presence, and to investigate the horizontal and
vertical extent of the areas of waste deposition. A total of
nine soil borings were drilled. Waste in .the form of capacitor
debris, sludge, resinous material, and drums was found in boring
SBSB-l, SBSB-2B and SBSB-3A. No waste was found in the six
remaining soil borings.
Following installation of the soil borings, five exploratory
borings were installed to further determine the horizontal and
vertical extent of waste deposition. An exploratory trenching
program was also initiated to further define the waste in Area
B. However, drums were encountered in the first exploratory
trench (SBST-l) and trenching was discontinued in order to avoid
puncturing the drums. The vertical extent of waste has been
est~ated. The waste has been disposed in three areas: one
above-ground disposal area at the north end of Area B, and two
subsurface disposal areas. Waste in the above-ground disposal
area consist of wood pallets and capacitor debris. The
above-ground waste area has an approximate surface area of 180
square yards. The north area of subsurface waste has an area of
80 square yards and an estimated volume of 300 cubic yards. The
southernmost area of waste deposition has a surface area of 95
square yards and an estimated volume of 250 cubic yards.
A sample of waste collected from exploratory trench SBST-l, and
a composite sample of waste collected from soil borings 2B and 3
(designated SBSB-2B, 3),' were. analyzed for the.HSL parameters.
Samples of waste for VOC analysis were collected from borings
SBSB-2B and 3 and analyzed separately. Analytical results for
waste are presented on Table 5-44. .
Several VOCs and semi-volatile compounds were detected in the
waste. Trichloroethene and tetrachloroethene were most common.
.PCBs were detected in waste samples SBST-l and in the composite
sample SBSB-2B, 3. Total PCBs detected in composite waste
sample SBSB-2B, 3, and in the exploratory trench waste sample
were 31 ppm and 920 ppm, respectively.
The inorganic compounds aluminum, calcium, lead, magnesium,
silver and cyanide were found in the waste at concentrations
above the range detected in Table 5-30. Lead and magnesium
concentrations are within the range in Table 5-31.
-------
-31-
~
Twenty-two surface soil samples, (SBSS-l through SBSS-22), were
collected in Area B. Upgradient soil sample SBSS-l was analyzed
for HSL parameters. The remaining samples were analyzed for
PCBs and VOCs. Table 5-45 summarizes those parameters detected
in SBSS-l. PCB, semi-volatiles and VOC concentrations for all
surface soil samples are present in Table 5-46. PCBs were
detected in twenty-two samples. Total PC~ concentrations ranged
from 0.53 ppm at SBSS-3 to 32,000 ppm at SBSS-7. Nine surface
soil samples have PCB concentrations exceeding 50 ppm. Eight of
these samples are located at areas of waste deposition. Surface
soil samples SBSS-4, 7, 9 and 11 were collected adjacent to or
immediately downgradient of the above-ground disposal area.
SBSS-14 was collected adjacent to the north subsurface disposal
area. Surface soil samples SBSS-17, 18 and 19 are all located
immediately downgradient of the south disposal area. Surface
soil sample SBSS-21 (325 ppm total PCBs) was collected from a
drainage swale downgradient of the waste areas in Area B.
volatile organic compounds were detected in SBSS-7, 11, 16 and
18 through 21. Samples SBSS-7 and SBSS-6 were collected at and
downgradient of the above-ground disposal area, respectively.
Samples SBSS-18, 19 and 20 were collected immediately
downgradient of the south subsurface disposal area. Sample
SBSS-21 was collected in a drainage swale about fifty feet
downgradient of the waste in Area B. The concentrations of VOCs
are all less than 1 ppm.
In addition to waste samples, five subsurface soil samples were
collected adjacent to or below the waste and analyzed for PCBs.
Additionally, one sample, SBSB-2B (8-10) 'was analyzed for the
HSL parameters. Analytical results for PCBs are presented in
Table 5-47. Parameters detected in the HSL ~alysis of SBSB-2B
(8-10) are s\1mm~rized in Table, 5-48. '
Three borings SBSB-l, 1A and IB were installed adjacent to the
above-ground disposal area and sampled at 4 to 6 feet below land
surface. Total PCB concentrations in these samples were 16 ppm,
1.4 ppm and none detected, respectively. Two subsurface soil
samples SBSB-2B (6-8) and SBSB-2B (8-10) were collected,below
the waste in the north subsurface disposal area. These soils
had total PCB concentrations of 18 ppm and 80 ppm,
respectively. SBSB-2B (8-10) was the only subsurface soil
sample to exceed 50 ppm total PCBs.
No VOCs were detected in the HSL analysis of SBSB-2B (8-10).
Several semi-volatile compounds were detected. Three inorganic
compounds, copper, iron and vanadium exceeded the range of
concentrations in Table 5-31. Concentrations of copper, iron
and vanadium ate much higher in the soils than in the overlying
waste. The waste is not the source of these compounds to
subsurface soils.
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-32-
Two subsurface soil samples were also collected at 0 to 1.5 feet
and 1.5 to' 3 feet below land surface of well SBMW-2 located
about 60 feet east of the waste in Area B. These samples were
analyzed for PCBs only. Total PCBs detected in these samples
are 16 ppm and 16.3 ppm, respectively. Analytical results are
included in Table 5-47.
Ground water samples were collected from wells SBMW-l, 2 and 3
on October 10, 1988 and January 18, 1989. First round samples
were analyzed for PCBs, VOCs, pH, specific conductance,
suspended solids, alkalinity, hardness, chlorides, and sulfate.
Because several semi-volatile compounds were detected in the HSL
analysis for semi-volatile compounds. Well SBMW-2 was also
analyzed for all of the HSL parameters during the first sampling
count. Samples were collected for inorganic analysis. Table
5-49 summarizes analytical results for detected parameters.
PCBs were detected in well SBMW-2 in January 1989 at 0.0023 ppm
and 0.003 ppm (duplicate sample). PCBs were not detected in any
other ground water samples for Area B.
.'
Several volatile organic compounds (l,l,l-trichloroethane, and
tetrachloroethene) were detected in ground water in Area B.
l,l,l-Trichloroethane was detected in upgradient well SBMW-l
(0.008 ppm) during the October 1988 sampling and is the only Voc
detected in SBMW-l. 1,1, I-Trichloroethane, tetrachloroethene,
trichloroethene and 1,2-dichloroethene was detected in SBMW-2.
Trichloroethene was detected in well SBMW-3 in January 1989 at
0.008 ppm. This compound was also detected in the associated
analytical blank. Sample SBMW-3 was analyzed the same day as
samples collected from wells in Area A. The 0:008 ppm
trichloroethene detected in SBMW-3 is similar to the 0.007 ppm
to 0.008 ~pm detected in Area A. Tetrachloroethene was also
detected in well SBMW-3 in January 1989 at 0.025 ppm.
Well SBMW-2, located immediately downgradient of the area of
waste deposition in Area B, had the highest concentration of
VOCs, 33.886-ppm detected in October 1988, and 77.1 ppm (77.3
ppm in a duplicate sample) detected in January 1989.
During the first sampling round in October 1988, all three wells
were analyzed for the semi-volatile compounds. No semi-volatile
compounds were detected in any of the wells. Therefore,
semi-volatiles were not included in the list of analytical
parameters for the second round samples collected in January
1989.
-------
-33-
During the first sampling round in October 1988, samples were
obtained from downgradient well SBMW-3 for Lnorganic analysis.
Eight compounds were detected in the non-filtered sample.
Inorganic compound concentrations in the sample was low;
therefore, metals were not included in the analytical parameters
for the second round ground water samples collected in January
1989. EPA was notified that inorganic, pesticide, and
semi-volatile compounds would not be included on the analytical
parameter list for second round samples in a letter dated
January 10, 1989.
Area C
..
Soil borings and exploratory trenches were installed as part of
the Remedial Investigation to confirm actual waste presence and
determine horizontal and vertical extent of the areas of waste
deposition.
A total of twenty soil borings were drilled. Split-spoon
refusal was encountered on top of waste between 1 and 4 feet
below land surface in borings SCSB-1, lA, 1B,.lC, 4, 4A and 5.
To assist in sampling below the waste, trenches 2, 3 and 4 were
excavated to remove waste at boring locations SCSB-4, 5 and 6.
Borings SCSB-4T, 5T and 6T were advanced through the bottom of
the trenches. Waste was also removed at SCSB-1 and boring
SCSB-7T was drilled through the bottom of the excavation.
Exploratory trenches installed in these areas, after the soil
borings were drilled, revealed the presence of large power
factor capacitors in the area of each of. these soil borings
except SCSB-5. Waste, in the form of capacitor debris (metal,
paper and foil) was encountered by borings SCSB-1, SCSB-1E, SA
and 6C. Waste was not observed in the remaining twelve soil
borings.
Following installation of the soil borings, fifteen exploratory
trenches were installed to further determine the horizontal and
vertical extent of the two areas of waste deposition.
Exploratory trenches were excavated with a backhoe and visually
described by the on-site RMT geologist.
The horizontal extent of. the two areas of waste deposition was
determined by soil borings and exploratory trenches. Waste in
Area C is disposed in two parallel trenches oriented in a
northeast direction. The northwest trench is 120 feet long and
5 feet wide. The southeast trench is 45 feet long and 12 feet
wide. Large power factor capacitors are present in the
southeast waste area. Capacitor paper, foil, metal banding, and
power factor capacitors are present in the northwest waste
deposition area. The northwest waste area has an approximate
surface area of 65 square yards and the southeast area has an
approximate surface area of 60 square yards. Total waste volume
at Area C is approximately 200 cubic yards.
-------
-34-
A sample of waste collected from soil boring SCSB-6C at 0.0 to
2.0 feet below land surface, and a composite sample of waste
collected from exploratory trenches S~ST-2, 3, and 4, were
analyzed for the HSL parameters (samples of waste for VOC
analysis were collected from exploratory trenches SCST-2, 3 and
4 were analyzed separately, (not composited). Analytical
results for waste are presented on Table 5-50.
Several volatile organic compounds were detected in the waste.
However, the concentrations of VOCs detected are near the
detection limits. Trichloroethene was the most commonly found
constituent.
No semi-volatile or pesticide compounds were detected in the
waste in Area C.
I '.
PCBs were detected in both waste samples SCSB-6C (0.0-2.0) and
SCST-2, 3, 4 at 38,000 ppm and 25,000 ppm total PCBs.
The inorganic compound copper was the only compound detected in
the waste with concentrations above the range of concentrations
in Table 5-31.
Seventeen surface soil samples (SCSS-1 through SCSS-17) were
collected. SCSS-1 was analyzed for the HSL parameters. Samples
SCSS-2 through SCSS-17 were analyzed for PCBs only. Table 5-51
summarizes parameters detected in SCSS-1. PCB concentrations
are summarized in Table 5-52. Total PCB concentrations ranged
from none detected ~t sample site SCSS-4 to 11,000 ppm detected
at SCSS-7. 'Only seven samples (SCSS-5, 7, 8, 9, 11, 12 and 13)
had PCB concent~ions greater. than 50 ppm. Th~se samples were
, grouped together and located along and ~ediately downgradient
at the northwest trench.
In addition to composite waste sample SCST-2, 3 and 4, and waste
sample SCSB-6C (0-2), twenty-three subsurface soil samples were
collected and analyzed. Three samples, SCSB-5 (5-6.5) SCSB-5A
(7.5-9) 'and SCST-l were analyzed for the HSL parameters. The
remaining twenty samples were analyzed for PCBs only.
Analytical results for PCBs are presented in Table 5-53.
Additional-parameters detected in the HSL analyses are presented
in Table 5-54.
PCBs were detected in all subsurface soil samples, except
, SCSB-6A (4-6), collected adjacent to the northwest waste area.
Of the remaining soil samples, twelve had total PCB
concentrations greater than 50 ppm. Samples SCSB-ID (4-6), with
a total PCB concentration of 214 ppm, was collected near the
-------
-35-
South end of the southeast waste area. The remaining ten
samples with greater than 50 ppm total PCBs were collected from
below the waste, ranging from 90 ppm at SCSB-1E (8-9.5), SCSB-1E
(10-11.5), SCSB-7T (7-8.5) and SCSB-7T (9.5-11), were collected
below the waste in the southwest waste area. Total PCB
concentrations in both borings decreased in concentration from
90 ppm to 35 ppm in SCSB-1E and from 9,300 ppm to 900 ppm at
boring SCSB-7T. Total PCBs detected in soils collected from
boring SCSB-6C increased with depth from 320 ppm to 4,570 ppm.
The other four borings demonstrated decreases in total PCB
concentrations in depth from 6,400 ppm to 1.42 ppm at SCSB-4T,
7,800 ppm .to 5.8 ppm at SCSB-5T, 14, 100 ppm to 3.9 ppm at
SCSB-5A and 33,000 to 24,QOO at SCSB-6T. As shown, three of
these borings decreased in PCB concentrations to less than 50
ppm.
The subsurface soil samples collected. from borings SCSB-2,3,6,6A
and 6B were collected outside of the waste areas. Total PCB
concentrations in these samples ranged from none detected to 10
ppm. Two subsurface soil samples were collected at 0.5 to 2
feet below land surface and 2 to 3.5 feet below land surface of
well SCMNB-5, and analyzed for PCBs. Total PCB concentrations
for SCMNB-5 (0.5-2) were 1.60 ppm and 1.13 ppm (duplicate
sample). Sample SCMWB-5 (2-3.5) had a total PCB concentration
of 0.93 ppm.
No VOCs were detected in samples SCSB-5 (5-6.5) and SCSB-5A
(7.5-9) collected below the northwest waste area.
Semi-volatile organic compounds and pesticide compounds were not
detected in all three .samples. Several inorganic compounds were
detected in samples SCSB-5 (5-6.5), SCSB-5A (1.5-9) and SCST-1.
None of the concentrations detected exceeded the range of
concentrations in Tables 5-30 and 5-31.
Ground water samples were collected from well SCMW-5. The
sample was analyzed for PCBs, VOCs, pH, specific conductance,
suspended solids, alkalinity, hardness, chlorides, and sulfate.
Table 5-54 presents analytical results for both sampling rounds.
PCBs were detected in well SCMW-5 at a concentration of 0.0075
ppm on October 20, 1988 and 0.0058 ppm on January 17, 1989.
Several volatile organic compounds were detected in ground water
in Area C. Trichloroethene and tetrachloroethene were the most
common compounds and were detected in ten wells.
-------
-36-
Total VOC concentrations in these ten wells for both sampling
rounds are included on Table 5-55. The well (SCMW-5) had much
lower total VOC concentrations than other area well water
samples.
Area D
Soil borings were installed as part of the Remedial
Investigation to confirm actual waste presence and to
investigate horizontal and vertical extent of the area of waste
deposition. Twelve total borings were attempted at seven
locations proposed in the Work Plan. All of the borings (except
SDSB-2,8 and 10) are located in areas of suspected waste
deposition. Two borings were installed in the area of SDSB-4,
and three borings were attempted in the area of both SDSB-1 and
SDSB-5. Buried drums were encountered while boring in the area
of SDSB-1 and SDSB-4. Subsurface so~l sampling was terminated
to avoid the risk of puncturing drums.
Soil' boring locations are shown on Plate 3-8, and lithologic
logs. Waste, in the form of semi-solid to solid resinous
material,' was observed in borings SDSB-1B, 4, 4A, and 7. Waste
was not observed in the eight remaining soil borings; however,
split-spoon refusal was encountered at 0.5 feet below land
surface in SDSB-1 and a void was encountered at 3.0 to 4.5 feet
below land surface in SDSB-lA, indicating that waste may be
present in these areas.
Since the soil boring program could not be completed, the
vertical extent of waste is unknown, and the horizontal extent
of the waste has been est~ated based on magnetic anomalies
detected in the preliminary investigation. Waste in Area D has
an approx~ate surface area of 1,350 square yards. Based on a
waste thickness of 10 feet there could be 4,500 cubic yards of
waste.
After the boring program was terminated an exploratory trenching
program was initiated. Several drums were uncovered less than
three feet below land surface in the first trench. Exploratory
trenching was then discontinued to avoid puncturing the drums.
A sample of s01l designated SDSB-1 was taken from the excavation
and analyzed for the HSL parameters. Waste collected from
SDSB-7 at 2.0 to 2.8 feet below land analytical results for
parameters detected in the waste.
Several volatile organic compounds, were detected in waste
in Area D. Trichloroethene and tetrachloroethene were
prevalent. No semi-volatile or pesticide compounds were
detected in the waste.
found
-------
-37-
Total PCBs detected in SDSB-l (surface) were 77,800 ppm.This
soil sample was collected in an area of spilled liquid during
one backhoe excavation.
Aluminum, arsenic, iron, and vanadium were the only inorganic
compounds found in the waste at concentrations above the range
in Table 5-31.
.,.
Surface soil samples were collected and analyzed for PCBs and
VOCs to determine the extent of these constituents on the land
surface. Forty-four surface soil samples (SDSS-l through
SDSS-44) were collected. In addition to PCBs and VOCs, sample
SDSS-1 was analyzed for the HSL parameters. Table 5-58
summarizes parameters detected in SDSS-1. Analytical results
for PCBs and VOCs are summarized on Table 5-59. Total PCB
concentrations are also shown on Plate 3-13. Total PCB
concentrations ranged from none detected in sample SDSS-20 to
1,010 ppm in sample SDSS-11. Only twelve samples, (SDSS-2, 3,
4, 6, 7, 11, 18, 21, 22, 24, 29, and 42) exceeded 50 ppm total
PCBs. These samples are grouped into two areas located at the
eastern and southern portions of Area D.
VOCs were detected in seven samples (SDSS-4, 6, 7, 14, 17, 18
and 29). Trichloroethene and tetrachloroethene were the most
common compounds detected. Total VOC concentrations in these
seven samples range from 0.007 ppm to 0.4 ppm. Surface soil
samples SDSS-4, 6, 7, 14 and 17 are grouped together at the east
end of Area D.
Subsurface soil samples were collected and analyzed to determine
the extent of PCBs below land surface and below the waste.
Subsurface soil sampling wag terminated after. drums were
discovered. Twelve soil borings were drilled. Borings SDSB-2,
5, SA, 5B, 8 and 10 did not penetrate waste. One soil sample
was collected from each boring and analyzed for PCBs.
Analytical results are summarized on Table 5-60. PCB
concentrations detected were low, ranging from 0.24 ppm to 8.9
ppm. Boring SDSB-LA penetrated waste, and soil sample SDSB-LA
(5-6) was collected below the waste and analyzed for HSL
parameters. Analytical results are presented in Table 5-61.
Total PCBs-detected in SDSB-LA (5-6) was 360 ppm.
Several volatile organic compounds were detected of which
trichloroethene was the primary constituent.
Bis{2-ethylhexyl)phthalate was the only semi-volatile compound
detected. Pesticide compounds were not detected. None of the
inorganic compounds exceeded the range of concentrations in
Tables 5-30 and 5-31.
I
J
-------
-38-
In addition to soil borings in the vicinity of the waste, two soil
samples were collected at each of the four monitoring well locations
(SDWB-1 through 4) at 0 to 1.5 feet below land surface and 1.5 to 3
feet below land surface. These samples were analyzed for PCBs. No
PCBs were detected at SDWB-2. Sample SDWB-1 (0-1.5) had a
concentration of 113 ppm just below the land surface land surface
(0-1.5 feet). However, the sample directly below had a PCB
concentration of 1.3 ppm. The concentration in the underlying soil
SDWB-3 (1.5-3) was 0.290 ppm. Total PCB concentrations at SDWB-4
increased with depth from 2 PPm at SDWB-4 (0-1.5) to 23.9 ppm in
SDWB-4 (1.5-3).
Ground water samples were collected from wells SDMW-l,2,3,4. The two
sampling rounds were analyzed for PCBs, VOCs, pH, specific
conductance, suspended solids, alkalinity, hardness, chlorides, and
sulfate. Table 5-55 presents analytical results for both sampling
rounds.
PCBs were not detected in the Area Dwells.
. I"
Several volatile organic compounds were detected in ground water in
Area D. Trichloroethene and tetrachloroethene were the most common
compounds and were detected in ten wells.
Total VOC concentrations in these ten wells for both sampling rounds
are included on Table 5-55. The highest concentrations of VOCs were
detected in Area D ranging from 0.356 ppm to 90.8 ppm.
Area E
Soil borings were installed as part of the Remedial Investigation to
determine if waste is present in Area E. Three soil borings, SESB-1,
2 and 3, were installed in Area E at locations shown on Plate 3-6.
Total depths of borings were 16 feet below land surface for SESB-1,
15 feet below land surface for SESB-2, and 12-feet below land surface
at SESB-3. Each of the borings were terminated at least four feet
into saprolite (as defined by remnant rock structure). No waste was
found in any of the borings in Area E. Consequently, no waste
samples were collected.
Subsurfac~ soils were collected from three soil borings in Area E to
determine if PCBs are present. One soil sample from each boring was
collected and analyzed for PCBs. Analytical results are presented in
Table 5-62. Sample depths ranged from 3.5 to 7 feet below land
surface. PCB concentrations were low, ranging from 0.26 to 14 ppm.
Area E is paved, therefore no surface soil samples were collected.
-------
-39-
Ground water samples were obtained from well SEMW-1. First round
samples were analyzed for PCBs, VOCs, pH, specific conductance,
suspended solids, alkalinity, hardness, chlorides, and sulfate.
Samples were collected for inorganics analysis. Table 5-63
summarizes analytical resul,ts for detected parameters. Second round
ground water samples were analyzed for VOCs, PCBs, pH, specific'
conductance, suspended solids, alkalinity, hardness, chlorides, and
sulfates.
...
PCBs were detected in wells SWMW-2,3,4,5,6,7 and 7a in both sampling
rounds with total PCB concentrations ranging from 0.0032 ppm at
SWMW-3 (January 1989) to 0.11 ppm in well SWMW-5, also in January,
1989. PCBs were detected in well SWMW-8 and 9 only in the second
round of samples with total PCB concentrations of 0.014 ppm and 0.038
ppm, respectively. PCBs were not detected in Area Ewell SEMW-1 or
upgradient well SWMW-1 for the wastewater treatment facility.
Several volatile organic compounds (chloroform, 1,1-dichloroethane,
,1,1-trichloroethane, carbon tetrachloride, trichloroethane, and
tetrachloroethane) were detected in well SEMW-1 located in Area E,
upgradient of the wastewater treatment facility. Total VOCs
(excluding acetone) detected in SEMW-1 were 0.10 ppm (October 1988)
and 0.107 ppm (January 1989).
In the wastewater treatment facility wells, total 1,2-dichloroethene,
trichloroethene, and tetrachloroethene were detected in wells SWMW-2
through SWMW-9 during both sampling events. In addition,
trichloroethene and tetrachloroethene were detected in background
well SWMW-1 during the second sampling round in January 1989. The
trichloroethene concentration detected in SWMW-1 was 0.007 ppm.
In addition to ~tal 1,2-dichloroethene, trichloroethane and
tetrachloroethene, several other VOCs (vinyl chloride,
1,1-dichloroethene, 1,1-dichloroethane, chloroform,
1,2-dichloroethane, carbon tetrachloride and benzene) were detected
at less frequent occurrences.
Total VOC concentrations and are included in Table 5-63. Total VOC
concentrations ,ranged from none detected during the first sampling
, round in well SWMW-1 to 3.306 ppm in well SWMW-2 in October 1988.
Total VOC concentrations in well SWMW-9, located immediately
upgradient of the inactive lagoon, and wells SWMW-2 and 3, located
immediately downgradient of the inactive lagoon, ranged from 0.608
ppm in SWMW-3 to 3.306 ppm in SWMW-2. Well SWMW-9 is located
approximately 45 feet upgradient of the inactive lagoon. The
presence of VOCs may be the result of direct hydrologic connection
(through fractures) between the inactive lagoon and the screened
portion of well SWMW-9. Well SWMW-4, located downgradient of the
inactive lagoon and immediately upgradient of the stabilization
-------
~
-40-
lagoon, had total VOC concentrations of 1.101 ppm, 1.86 ppm and 1.95
ppm (duplicate sample). Total VOCs in water table wells SWMW-5,6,7
and 8 ranged from 0.095 ppm in SWMW-8 to 2.15 ppm in SWMW-5 and show
decreases in concentration, with distance downgradient from the
stabilization lagoon; however, well SWMW-7A, screened below the water
table on top of bedrock, had higher total VOC concentrations than
adjacent water table well SWMW-7. Detect9d concentrations in SWMW-7A
( 1. 96 ppm and 2.57 ppm) were the highest of the five downgradient
wells for the respective sampling periods.
During the first round sampling in October 1988, wells SWMW-4 and
SWMW-6 were analyzed for semi-volatile and pesticide organic
compounds. No semi-volatile compounds were detected. Heptachlor
epoxide was the only pesticide organic compound detected in SWMW-4
(0.00021 ppm) and low concentrations. Semi-volatile and pesticide
organics compounds were not included in the list of analytical
parameters for second round samples collected in January 1989.
..
In October 1988, samples were obtained from downgradient well
and 6 for inorganic compound analysis. Twelve compounds were
detected in the sample for well SWMW-4 (see Table 5-63). Ten
inorganic compounds were detected in the sample for SWMW-6.
Concentrations in both the samples were low, therefore, metals
not included in the analytical parameters for the second round
water samples collected in January 1989.
SWHW-4
were
ground
EPA was notified of the elimination of inorganic, semi-volatile, and
pesticide organic compounds from the analytical parameter list for
second round samples in a letter dated January 10, 1989.
Area P
Soil borings. and exploratory trenches were installed as part of the
Remedial Investigation to determine if waste was present, and to
determine the horizontal and vertical extent'of waste.
A total of six soil borings were drilled in Area P.
Soil boring locations are shown on Plate 3-8. Aluminum hydroxide
sludge was found in borings SPSB-2 and 2A. Sludge was also found in
the area of boring SPSB-3. No waste was found in borings SPSB-1, 1A
and lB.
Pollowing the installation of soil borings, nine exploratory trenches
were excavated to further determine the vertical and horizontal
extent of sludge in the vicinity of SPSB-2. Trench locations are
shown on Plate 3-9. Trenches were excavated with a backhoe with
depths ranging from 1.5 to 9 feet below land surface. The sludge is
deposited in an elongated area approximately 23 feet wide and 75 feet
long comprising an area of about 180 square yards. Cross sections
-------
-41-
of the area of waste deposition are shown on Plate 3-9. Sludge
deposited in the vicinity of SFSB-2 is mostly covered w~th soil fill.
Depth to the sludge ranges from land surface to 5 feet below land
surface. Sludge thickness ranged from 0.2 to 5 feet. The estimated
volume of waste in Area F is 200 cubic yards.
A sample of sludge collected from soil borings SFSB-2A at 4 to 6 feet
below land surface designated SFSB-2A (4-6) was analyzed for the HSL
parameters. Analytical results are presented in Table 5-64.
Trichloroethene and tetrachloroethene were the only volatile organic
compounds detected and had concentrations less than 1 ppm.
Semi-volatile and pesticide compounds were not detected. PCBs were
detected in the waste with a total PCB concentration of 20,900 ppm.
A sampl~ of waste was also collected 4 to 6 feet below land surface
from a bore hole adjacent.to SFSB-2A designated SFSB-2W (4-6) and
analyzed for PCBs. Aroclors 1248 and 1254 were detected with a total
PCB concentration of 16,500 ppm.
;;
Aluminum was the only inorganic compound detec~ed at concentrations
above the range in Table 5-31. .
Subsurface soils were analyzed to determine the presence of PCBs and
other constituents below land surface and below the waste. Surface
soil samples were collected and analyzed to determine the extent of
PCBs on the land surface.
Eleven surface soil samp1~s (SFSS-1 through 11) were collected.
SFSS-1 was analyzed for the HSL parameters. Table 5-65 summarizes
parameters detected in SFSS-1. Samples SFSS-2 through 11 were
analyzed for PCBs only. PCB concentrations are summarized in Table
5-66. Total PCB concentrations ranged from none detected in soil
samples SFSS-2 to 632 ppm detected in SFSS-5. Only four samples,
SFSS-4, 5, 6 and 9, exceeded 50 ppm.
In addition to waste samples SFSB-2A (4-6) and SFSB-2W (4-6), nine
subsurface soil samples were collected for analysis. One sample,
SFSB-2 (9.5-11.5) collected below the waste, was analyzed for the HSL
parameters. The remaining samples were analyzed for PCBs only.
Analytical results for PCBs are presented in Table 5-67. The
additional parameters detected in the HSL analysis of sample SFSB-2
(9.5-11.5) are presented in Table 5-68. None of the subsurface soil
samples had total PCB concentrations greater than 50 ppm. Borings
SFSB-1, LA. and 1B were drilled in an area of suspected waste
deposition. No waste was observed in these boreholes. A soil sample
was collected at 4 to 6 feet below land surface in each boring and
analyzed for PCBs. Total PCB concentrations in these samples were
0.077 ppm, 1.45 ppm and none detected, respectively. Borings SFSB-2
and 2A were drilled through the area of waste deposition. Samples
SFSB-2 (8-9.5), SFSB-2 (9.5-11.5) and SFSB-2A (6-8), were collected
beneath the waste. Total PCB concentrations to 3.5 feet below the
waste, to 0.3 ppm in sample SFSS-2 (9.5-11.5), collected 3.5 to 5.5
feet below the waste. Total PCB concentrations in boring SFSB-2A
decreased from 20,900 ppm detected in the waste to 24.1 ppm detected
in the underlying soil sample.
-------
-42-
Sample SFSB-3 (3.5-5) was collected in an area,where non-PCB bearing
waste sludge was disposed. No PCBs were detected in this sample.
Samples SFWB-6 (0-1.5) and SFWB (1.5-3) were collected at the boring
location for well SFMW-6. No PCBs were detected in these samples.
In addition to PCBs, subsurface soil sample SFSB-2 (9.5-11.5) was
analyzed for the HSL parameters. Analytical results for detected
parameters are included in Table 5-68. One semi-volatile compound,
bis (2-ethylhexyl) phthalate, was detected at 1.5 ppm. Pesticides
were not detected. None of the inorganic compounds exceeded the
range of concentrations in Tables 5-30 and 5-31.
Ground water samples were collected from well SPMW-6. Both sampling
rounds were analyzed for PCBs, VOCs, pH, specific conductance,
suspended solids, alkalinity, hardness, chlorides, and sulfate.
Table 5-55 presents analytical results for both sampling rounds.
. PCBs were not detected in the Area P well.
Several volatile organic' compounds were detected in ground water in
Area P. Trichloroethene and tetrachloroethene were the most common
compounds. and were detected in ten wells.
Total VOC concentrations in these ten wells for both sampling rounds
are included on Table 5-55 and shown on Plate 3-15. The well had
much lower total VOC concentrations than the other area well samples
Area G
Preliminary constituent source investigations were performed and
suspected areas of waste deposition were identified. Twenty-seven
soil borings were drilled to determine the vertical and horizontal
extent of waste, if present. None of the borings penetrated waste.
Soil boring locations are shown on Plate 3-8. Soil boring depths
ranged from five to six feet below land surface. There were no
visible waste present in any of the soil borings. Three trenches, .
SGST-1, 2 and 3, were excavated with a backhoe to verify that waste
is not present in Area G. Trenches SGST-1 and 2 are 70 and 59 feet
long, respectively, and transect Area G across suspected areas of
waste depo8ition identified in the RI Work Plan. Trench SGST-3 was
excavated across a berm located at the east end of Area G. No
visible signs of waste were observed in the trenches.
Subsurface soil samples were collected and analyzed to determine if
PCBs are present below land surface. Surface soil samples were
collected to determine the extent of PCBs on the land surface.
-------
-43-
Twenty-nine surface soil samples (SGSS-1 through 29) were collected
at locations shown on Plate 3-13. SGSS-1 was analyzed for the HSL
parameters. Parameters detected in SGSS-1 are summarized in Table
5-69. Samples SGSS-2 through 29 were analyzed for PCBs only. PCB
concentrations are summarized in Table 5-70 and presented on Plate
3-13. Total PCB concentrations ranged from none detected, in samples
SGSS-5, 7, 16, 17, 18, to 3,800 ppm, detected in SGSS-25. Only four
samples, SGSS-15 (50.4 ppm), SGSS-25 (3800 ppm), SGSS-26 (1500 ppm)
and SGSS-29 (99 ppm), exceed 50 ppm. Sample SGSS-25 was collected
from an earthen berm that extends eastward from Area G into Area H.
This berm appears to have been formed as a result of removing soil
from a cleared area in Area H and the southeast corner of Area G.
Sample SGSS-26 is located in this cleared area. (Ten surface soils
collected from the cleared area in Area H also exceed 50 ppm total
PCBs.) Surface 80il samples SGSS-15 and SGSS-29 are located in
separate areas, and are located in the vicinity of samples with much
lower concentrations. .
~
Twenty-four subsurface soil samples were collected to determine the
presence of PCBs and other constituents in subsurface soils. Two
samples, SGSB-5 (4-6) and. trench 3 (2.5-4), were analyzed for the HSL
parameters. The remaining samples were analyzed for PCBs only.
Analytical results for PCBs are presented in Table 5-71. Additional
parameters detected in the HSL analysis are summarized in Table 5-72.
PCBs were detected in only seven of the twenty-four samples
collected. Samples SGSB-11 (4-6), SGSB-11A (4-6) and Trench 3
(2.5-6) had total PCB concentrations of 74 ppm, 7,000 ppm and 8,000
ppm and are the only samples that exceeded 50 ppm total PCBs. These
three samples were collected from the berm.
Table 5-73 summarizes analytical results for parameters other
PCBs detected in the HSL analysis of samples Trench-3 (2.5-4)
SGSB-5 (4-6). Semi-volatile and pesticide organic compounds
trichloroethene and tetrachloroethene were detected in sample
Trench-3 (2.5-4). These. compounds were also detected in the
associated analytical blank samples. .
The inorganic compound copper exceeded the range of concentrations on
Tables 5-30 and 5-31. Silver was only 0.1 ppm above the range of
concentrations on Table 5-30. The silver concentrations may reflect
naturally occurring concentrations.
than
and
Two additional subsurface soil samples were collected at 0 to 1.5
feet below land surface and 1.5 to 3 feet below land surface at well
borings for wells SGMW-7, 8 and 9. These samples were analyzed for
PCBs only. One sample, SGMW-7 (0-1.5), had a total PCB concentration
of 0.037 ppm, and is the only well boring sample in which PCBs were
detected.
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Ground water samples were collected from wells SGMW-7, 8, 9. Both
sampling rounds were analyzed for PCBs, VOCs, pH, specific
conductance, suspended solids, alkalinity, hardness, chlorides, and
sulfate. Table 5-55 presents analytical results for both sampling
rounds.
PCBs were not detected in the Area G wells.
Several volatile organic compounds were detected in ground water in
Area G. Trichloroethene and tetrachloroethene were the most common
compounds and were detected in ten wells.
Total VOC concentrations in these ten wells for both sampling rounds
are included on Table 5-55. The remaining wells (SGMW-7,8 and 9) had
much lower total VOC concentrations than the other areas wells.
Area H
Preliminary constituent source investigations were performed and
suspected areas of waste deposition were identified. Thirteen soil
borings were drilled in Area H to locate waste. Soil boring depths
ranged from four to six feet below land surface. No visible wastes
were found in any of the soil borings. Twenty-one exploratory
trenches were excavated with a backhoe to determine the presence of
waste in Area H. Trench lengths ranged from 4 to 80 feet and
transect across magnetic and topographic anomalies on the land
surface. Waste was found in only one trench, SHST-6. Less than one
cubic yard of waste in the form of capacitor debris was present.
A sample of waste was collected from trench SHST-6 and analyzed for
HSL parameters. Analytical results are shown on Table 5-73. Only
one volatile organic compound, total xylene, and only one
semi-volatile compound, bis (2-ethylhexyl) phthalate were detected.
Pesticide compounds were not detected. A total PCB concentration of
2.16 ppm was detected in the waste. Six inorganic compounds,
aluminum, arsenic, cadmium, copper, silver, and zinc were above the
range of concentrations in Table 5-30. The zinc concentration was
within the range of concentrations in Table 5-31.
Surface s011 samples were collected and analyzed to determine the
extent of PCBs on the land surface. Subsurface soils were analyzed
to determine if PCBs are present below land surface. Twenty-eight
surface soil samples (SHSS-1 through 28) were collected. SHSS-l was
analyzed for HSL parameters. Table 5-74 summarizes parameters
detected. Samples SHSS-2 through SHSS-28 were analyzed for PCBs
only. PCB concentrations are summarized in Table 5-75. PCBs were
detected in twenty-eight samples. Total PCB concentrations ranged
from 0.28 ppm at 5HS5-22 to 8,700 ppm at 5HS5-12. Ten samples had
total PCB concentrations exceeding 50 ppm. All ten samples were
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-45-
collected from a cleared area from which
removed in the center of Area H and used
northwest edge of the cleared area. PCB
collected north and south of the cleared
c=ncentration3.
topsoil had apparently been
to form a berm along the
concentrations in soils
area had much lower PCB
Eight subsurface soil samples were collected to determine if PCBs and
other constituents are present in subsurface soils. Sample SHSB-5
(4-5) was analyzed for the HSL parameters. The remaining samples
were analyzed for PCBs only. Analytical results for PCBs are
presented in Table 5-76. Additional parameters detected in the HSL
analysis of SHSB-5 (4-5) are presented in Table 5-77. Only two
samples had PCBs detected. Sample SHSB-4 (6-8), collected in an
earthen berm located north of the cleared area, had a total PCB
concentration of 4.4 ppm. Sample SHSB-2 (4-5.5) collected in the
cleared area had a concentration of 190 ppm. This was the only sample
to exceed 50 ppm total PCBs. .
There were no semi-volatile organic, pesticide organic or PCB
compounds detected in the HSL analysis of sample SHSB-5B (4-5).
Silver was the only inorganic compound to exceed the range of
concentrations in Table 5-30.
Ground water samples were collected from well SHMW-10. Both sampling
rounds were analyzed for PCBs, VOCs, pH, specific conductance,
suspended solids, alkalinity, hardness, chlorides, and sulfate.
Table 5-55 presents analytical results for both sampling rounds.
PCBs were not detected in the Area H wells.
Several volatile organic compounds were detected in ground water in
Area H. Trich~roethene and.tetrachloroethene were the most common
compounds and were detected in ten wells.
Total VOC concentrations in
are included on Table 5-55.
downgradient of Area H, had
top of the ridge outside of
these ten wells for both sampling rounds
Well SHMW-10, located south and
the highest concentrations detected on
Area D.
--
SeDtic Drain Pield
There are three sept~c tank drain fields on the Sangamo Weston
property. Two fields are located adjacent to each other north of the
manufacturing facility. These drain fields are addressed
collectively as the north drain field. The third drain field is
located south of the manufacturing building and is referred to as the
south drain field. These drain fields were used for deposition of
sanitary wastewaters from the plant.
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Subsurface SQ~ls were analyzed to determine the presence of PCBs and
other constituents below the septic drain fields. Borings were
extended to twenty feet below land surface or auger refusal,
whichever was shallower. Soil samples were retained at about five
feet below land surface, ten feet below land surface, and the bottom.
of the borehole. Borings SSSB-2 and SSSB-2B encountered shallow
auger refusal~ therefore, these boreholes .were sampled at 4 to 5 feet
and 3.5 to 4 feet below land surface, respectively.
Soil borings SSSB-1, 2, 2B, 3C and 4B are located in the south drain
. field. Borings SSSB-5, 6C, 7, 9 and 9B are located in the north
drain field. A total of twenty-five subsurface soil samples were
collected. Samples SSSB-4B (18-20) and SSSB-7 (17-20) were analyzed
the HSL parameters. The remaining samples were analyzed for PCBs
only. Table 5-78 summarizes PCB concentrations detected. HSL
parameters detected in SSSB-4B (18-20) and SSSB-7 (17-20) are
presented in Table 5-79. .
PCBs were detected in eight of the ten samples collected in the south
drain field. With the exception of boring SSSB-2B, PCBs were
detected in the bottom sample of each boring (8 to 20 feet below land
surface). Sample SSSB-4B (18-20) collected at 18 to 20 feet below
land surface had a PCB concentration of 10 ppm (Aroclor 1016). This
was the highest concentration detected. The remaining samples had
PCB concentrations less than 1 ppm.
No PCBs were detected in the three samples collected in boring SSSB-S
located in the north drain field. Sample SSSB-7 (17-20) was the only
sample in boring SSSB-7 that had PCBs detected. PCBs were also
detected in the associated method blank sample (prepared by the
laboratory) at 0.25 ppm, thus this concentration may not be
representative of the sample. PCBs were detected in only one sample
in boring 5SSB-8, at a depth of 5-6 feet. This was the shallowest
sample collected. PCBs were detected in all three samples in boring
SSSB-9B. PCB concentrations in the north drain field were all well
below 1 ppm, ranging from none detected to 0.377 ppm.
In addition~o PCBs, sample SSSB-4B (18-20), collected from the south
drain field'7:~d sample SSSB-7 (17-20), collected from the north
drain field, ~re analyzed for the HSL parameters. The semi-volatile
compound di-A.butyl phthalate was detected in both samples, and bis
(2-ethylhexyl)phthalate was detected in SSSB-4B (18-20). No
pesticide compounds were detected. The inorganic compounds were all
within the range of concentrations in Tables 5-30 and 5-31.
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-47-
Wastewater Treatment Facilitv
The wastewater treatment facility consisted of a prLmary settling
basin and a large stabilization lagoon. The treatment system was
prLmarily designed for neutralization of acid solutions used in the
etching and forming process and for the precipitation of dissolved'
materials such as aluminum. The aluminum precipitates settled in the
prLmary settling basin. The facility was modified by replacing the
prLmary basin (now referred to as the inactive lagoon) with a
concrete lined equalization basin. The inactive lagoon is no longer
used for wastewater treatment. The stabilization basin is still in
use.
--
Six soil borings (SWSB-1 through 6) were installed in the inactive
lagoon to determine the vertical extent of sludge. Borings were
drilled using hollow stem augers with split spoon soil samples
collected continuously. Total depth to the bottom of the sludge
ranged from eleven feet below land surface at boring SWSB-1 to
thirteen feet below land surface at boring SWSB-5. The surface area
of the waste is about 1,380 square yards. The estLmated total volume
of sludge in the inactive lagoon is 4,400 cubic yards.
Sludge from each boring was composited into one sample and analyzed
for PCBs. Additionally, sludge from boring SWSB-2 was analyzed for
the HSL parameters. Analytical results are presented in Table 5-80.
The composite sludge sample had a total PCB concentration of 23,200
ppm and 26,400 ppm (duplicate sample). Sample SWSB-2 (2-6) had a
total PCB concentration of 187 ppm.
- The volatile organic compound tetrachloroethene was detected in the
waste. No semi-volatile or pesticide compounds were detected. All
of the inorganic compounds except aluminum an~ arsenic were well
within the range of concentrations in Tables 5-30 and 5-31.
Subsurface soil samples were collected from below the aluminum
hydroxide sludge in the inactive lagoon. Nine subsurface soil
samples were collected. Sample SWSB-5A (17-19) was analyzed for the
HSL parameters. The remaining samples were analyzed for PCBs only.
Analytical r.s~lts for PCBs are presented in Table 5-81. HSL
parameters detected in SWSB-5A (17-19) are presented in Table 5-82.
PCBs were detected in all nine samples, ranging from 23.2 ppm in
SWSB-1 (14-16) to 34,300 ppm detected in SWSB-6 (11.5-12). Five of
these samples exceeded 50 ppm total PCBs.
In addition to PCBs, sample SWSB-5A (17-19) was analyzed for the HSL
parameters. Total xylene was detected at 0.06 ppm in a diluted
sample. No VOCs were detected in the undiluted sample. No
semi-volatile or pesticide compounds were detected. All of the
inorganic compounds detected were within the range of concentrations
in Tables 5-30 and 5-31.
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-48-
EPA sampled seo~ents in the stabilization lagoon on May 10, 1989.
Results of that investigation are summarized in Table 5-83.
Ground water samples were obtained from well SWMW-l. Fix'st round
samples were analyzed for PCBs, VOCs, pH, specific conductance,
suspended solids, alkalinity, hardness, chlorides, and sulfate.
Wells SWMW-4 and 6 were also analyzed for ~ll of the HSL parameters.
Both filtered and nonfiltered samples were collected for inorganics
analysis. Table 5-63 summarizes analytical results for detected
parameters. Second round ground water samples were analyzed for
. VOCs, PCBS, pH, specific conductance, suspended solids, alkalinity,
hardness, chlorides, and sulfates.
PCBs were detected in wells SWMW-2,3,4,5,6,7 and 7A in both sampling
rounds with total PCB concentrations ranging from 0.0032 ppm at
SWMW-3 (January 1989) to 0.11 ppm in well SWMW-5, also in January,
1989. PCBs were detected in well SWMW-8 and 9 only in the second
round of samples with total PCB concentrations of 0.014 ppm and 0.038
ppm, respectively. PCBs were not detected in Area Ewell SEMW-l or
upgradient well SWMW-l for the wastewater treatment facility.
-.
Several volatile organic compounds (chloroform, l,l-dichloroethane,
l,l,l-trichloroethane, carbon tetrachloride, trichloroethene, and
tetrachloroethene) were detected in well SEMW-l located in Area E,
upgradient of the wastewater treatment facility. Total VOCs
(excluding acetone) detected in SEMW-l were 0.10 ppm (October 1988)
and 0.107 ppm (January 1989).
In the wastewater treatment facility wells, total 1,2-dichloroethene,
trichloroethene, and tetrachloroethene were detected in wells SWMW-2
through SWMW-9 during both sampling events. In addition,
trichloroethene and tetrachloroethene were detected in background
well SWMW-l during the second sampling round in January 1989. The
trichloroethene concentration detected in SWMW-l was 0.007 ppm.
In addition to total 1,2-dichloroethene, trichloroethane and
tetrachloroethene, several other VOCs (vinyl chloride,
l,l-dichloraethene, l,l,-dichloroethane, chloroform,
1,2-dichloraethane, carbon tetrachloride and benzene) were detected
at less freque.nt occurrences.
Total VOC concentrations are included in Table 5-63. Total VOC
concentrations ranged from none detected during the first sampling
round in well SWMW-l to 3.306 ppm in well SWMW-2 in October 1988.
Total VOC concentrations in well SWMW-9, located immediately
upgradient of the inactive lagoon, and wells SWMW-2 and 3, located
immediately downgradient of the inactive lagoon, ranged from 0.608
ppm in SWMW-3 to 3.306 ppm in SWMW-2. Well SWMW-9 is located
approximately 45 feet upqradient of the inactive lagoon. The
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-49-
presence of VOCs may be the result of direct hydrologic connection
(through fractures) between the inactive lagoon and the screened
portion of well SWMW-9. Well SWMW-4, located downgradient of the
inactive lagoon and immediately upgradient of the stabilization
lagoon, had total VOC concentrations of 1.101 ppm, 1.86 ppm and 1.95
ppm (duplicate sample). Total VOCs in water table wells SWMW-S,6,7 .
and 8 ranged from 0.095 ppm in SWMW-8 to 1.15 ppm in SWMW-5 and show
decreases in concentration, with distance downgradient from the
stabilization lagoon; however, well SWMW-7A, screened below the water
table on top of bedrock, had higher total VOC concentrations than
adjacent water table well SWMW-7. Detected concentrations in SWMW-7A
(1.96 ppm and 2.57 ppm) were the highest of the five downgradient
wells for the respective sampling periods.
During the first round sampling in October 1988, wells SWMW-4 and
SWMW-6 were analyzed for semi-volatile and pesticide organic
compounds. No semi-volatile compounds were detected. Heptachlor
epoxide was the only pesticide .organic compound detected in SWMW-4
(0.00021 ppm) and SWMW-6 (0.00066 ppm) during first round sampling.
These are extremely low concentrations. Semi-volatile and pesticide
organics compounds were not included in the list of analytical
parameters for second round samples collected in January 1989.
In October 1988, samples were obtained from downgradient wells SWMW-4
and 6 for inorganic compound analysis. Twelve compounds were
detected in the sample for well SWMW-4. Ten inorganic compounds were
detected in the sample for SWMW-6. Concentrations in both the
samples were low, therefore, metals were not included in the
analytical parameters for the second round ground water samples
collected in January 1989. .
EPA was notified of the el~ination of inorganic, semi-volatile, and
pesticide organic compounds from the analytical parameter list for
second round samples in a letter dated January 10, 1989.
Sed~ent samples were collected from drainage ditches and swales near
the wastewater treatment facility. These samples were collected from
nine locations (SWSD-3 through 11) on July 13, 1988. Samples were
analyzed for--PCBs. Analytical results are presented in Table 5-84.
Sampling sites. SWSD-3 through 7 are located in a drainage ditch
originating'~ear the Plant Facility and extends southward along the
east side of the inactive lagoon and stabilization lagoon. Sediment
sampling points SWSD-8 and SWSD-9 are located in a drainage swale
downgradient of Area B and were sampled to determine if PCBs have
migrated from Area B to the wastewater treatment facility. Drainage
in this swale also discharges into the outfall ditch to the
stabilization lagoon. Samples SWSD-IO and SWSD-11 were collect.ed in
the outfall ditch south of Sangamo Road, downgradient of the
wastewater treatment facility.
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-50-
PCBs were det9Cted in nine sed~ent samples. Sampling sites SWSD-3,
4, 6 and 8 are the only locations with PCB concentrations greater
than 50 ppm. SWSD-3, located upgradient from the inactive lagoon,
has a total PCB concentration of 1680 ppm. Sampling location SWSD-4,
located adjacent to the east side of the inactive lagoon, had a total'
PCB concentration of 2,700 ppm. Sediment sample SWSD-5, located
downgradient of the inactive lagoon, had a much lower PCB
concentration of 22.2 ppm. SWSD-6 and SWSD-7, located downstream of
the inactive lagoon and adjacent to the active lagoon, has a total
PCB concentration of 124 ppm and 6.5 ppm, respectively. A total PCB
concentration of 319 ppm was detected at SWSD-8. Total PCB
concentrations decreased further downgradient to 19.7 ppm detected in
SWSD-9.
Total PCB concentrations of 6.5 ppm and 7.2 ppm (duplicate sample)
were detected in SWSD-10. A total PCB concentration of 24.8 ppm was
detected at sampling site SWSD-11.
6.0
Summarv of Site Risks
.'
6.1
Contaminants of Concern
A baseline risk assessment was conducted for the plant site and each
of the off-site areas. The contaminated media of concern are
groundwater, soil and sed~ent, solid waste and sludge. The
constituents of concern for the media of concern in each location are
given in Table 6-1. Table 6-2 provides the concentration ranges for
the contaminants of cpncern. The major contaminant of concern at the
Sangamo Site is PCB. The surface soil PCB exposure point
concentration for each site was based on the mean of the detected PCB
concentrations for the surface soil samples coilected for that site.
The exposure point concentrations for other carcinogenic surface soil
contaminants of concern on the plant site were also based on the mean
of the detected samples. The surface soil exposure point
concentrations are contained in Table 6-3. The exposure point
concentrations for the soil noncarcinogenic contaminants of concern
were based on the highest detected concentrations. Lead was
considered to:-.be a soil contaminant of concern at the Welborn site.
The lead exposure point concentration was based on an average soil
lead concentration of 31.4 mg/kg.
The three contaminants of concern and the exposure concentrations for
the spring located south of the plant site are tetrachloroethene
(0.00084 mg/l) , 1,2-dichloroethene (0.071 mg/l) and trichloroethene
(0.2 mg/l). Other groundwater contaminants were detected in the
plume associated with the Plant site and the off site areas. The
range of groundwater contaminant concentrations for the site
locations is contained in Table 6-2. Although the consumption of
groundwater was not considered to be a complete exposure pathway in
the PRP risk assessment, Region IV does not agree with this
conclusion. Sections 6.2 and 6.4 contain more discussion on the
groundwater exposure pathway.
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-51-
6.2
Exposure Assessment
Potential exposure pathways are direct contact with contaminated soil
and sediments, inhalation of contaminated air and future consumption
of contaminated groundwater. An additional indirect exposure pathw~y
could result from leaching of surface and subsurface contaminants
into the groundwater and the subsequent consumption of groundwater.
Direct contact with surface soil and sediments is considered to be a
potentially complete current exposure pathway. Due to the remoteness
of the sites, direct contact was assumed to occur on a once-per week
basis at most of the sites. The Breazeale site is considered a
potential future building site, and the John Trotter site is
currently occupied, so intake levels were based on a daily exposure
scenario for these two sites.
For noncarcinogenic effects, the direct contact exposure scenario
was for children consuming 0.2 grams of soil per day and weighing
17 kilograms. The carcinogenic direct contact daily intake level
was based on both the ingestion and dermal contact pathways. The
ingestion pathway assumed a lifetime daily consumption rate of
0.1 grams of soil by a 70 kilogram adult. The dermal pathway
assumed a 540 milligrams per exposure contact rate and a 5%
absorption rate of PCBs through the skin.
Volatilization of constituents is not considered to be a
significant migration pathway at the plant site or at the off site
areas. Measured PCB and VOC concentrations in air were below
detection limits at both the plant and off site areas. For this
reason, inhalation was not considered to be a complete exposure
pathway. One exception to this was the Dodgens off site area.
Although the site is grass covered and in general fugitive dust
generation is not a significant exposure pathway, the grass at the
site is moWed with a tractor mower several times a year during the
summer months. The tractor operator could .be potentially exposed
to PCB containing dust generated by the mower. The exposure
frequency for this scenario is 10 days a y~ar for 2 hours a day.
The breathing rate was assumed to be 1.3 m /hour, 10% for the
percentage of inhaled dust ingested and 30% for the percentage of
PCBs absorbed from the ingested dust.
The consumption of contaminated groundwater was not considered to
be a complete exposure pathway in the risk assessment because no
downgradient groundwater users have been identified and treated
water is available to all residences downgradient of the plant
site. However, the on-site aquifer is classified as IIA and the
aquifer in the off site areas is classified as IIB, implying that
the on-site aquifer is considered to be a current drinking water
source and the off site aquifer is a potential source of drinking
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-52-
water. The ~ass II status of the aquifer in the vicinity of the
site indicates that a future scenario for the consumption of
groundwater should have been addressed in the risk assessment.
However, since this was not done, the need for groundwater
remediation will be addressed in the risk characterization section
of this summary by comparing groundwater concentrations for the
contaminants of concern with the appropriate MCLs or HeLGs. Health
based numbers are provided in the absence of groundwater standards.
The areas of solid waste and sludge disposal were sampled both on
the surface and by subsurface borings. The surface samples were
incorporated with the other surface soil samples to determine
surface soil exposure point- concentrations. The subsurface
contaminants pose an indirect exposure pathway through leaching to
groundwater and the subsequent consumption of contaminated
groundwater. These areas will be remediated based on soil cleanup
concentrations for the protection of groundwater.
6.3
Toxicitv Assessment
Cancer potency factors (CPFs) have been developed by EPA's
Carcinogenic Assessment Group for estimating excess lifetime cancer
risks associated with exposure to potentially carcinogenic 1
chemicals. CPFs, which are expressed in units of (mg/kg-day)- ,
are multiplied by the estimated intake of a potential carcinogen,
in mg/kg-day, to provide an upper-bound estimate of the excess
lifetime cancer risk associated with exposure at that intake
level. The term "upper bound" reflects the conservative estimate
of the risk calculated from the CPF. Use of this approach makes
underestimation of the actual cancer risk highly unlikely. Cancer
potency factors are derived from the results of human
epidemiological studies or chronic animal bioasBays to which
animal-to-human extrapolation and uncertainty factors have been
applied. The CPFs for-the site contaminants of concern are
contained in Table 6-4.
Reference doses (RfDs) have been developed by EPA for indicating
the potential for adverse health effects from exposure to chemicals
- exhibiting nOft(;arcinogenic effects. RfDs, which are expressed in
units of mg/kq~day, are estimates of lifetime daily exposure levels
for humans,- -iDCluding sensitive individuals. Estimated intakes of
chemicals from environmental media (e. g., the amount of a chemical-
ingested from contaminated drinking water) can be compared to the
RfD. RfDs are derived from human epidemiological studies or animal
studies to which uncertainty factors have been applied (e.g., to
account for the use of animal data to predict effects on humans).
These uncertainty factors help ensure that the RfDs will not
underestimate the potential for adverse noncarcinogenic effects to
occur. The RfDs for the site contaminants of concern are contained
in Table 6-4.
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6.4
Risk Characterization
Excess lifetLme cancer risks are determined by multiplying the
intake level with the cancer potency factor. These risks are
probabilities Ghat are generally expressed in scientific nutation
(e.g.1 6 x 10- or 1E-6). An excess lifetLme cancer risk of
1 x 10- indicates that, as a plausible upper bound, an
individual has a one in a million chance of developing cancer as a
result of site-related exposure to a carcinogen over a 70-year
lifetime under the specific exposure conditions at a site. The
Ageicy constders individual excess cancer rtsk in the range of
10- to 10- as protective; however the 10- risk level is
generally used as the point of departure for setting cleanup levels
of Superfund sites.
Potential concern for noncarcinogenic effects of a single
contaminant in a single medium is expressed as the hazard quotient
(HQ) (or the ratio of the estLmated intake derived from the.
contaminant concentration in a given medium to the contaminant's
reference dose). By adding the HQs for all contaminants within a
medium or across all media to which a given population may
reasonably be exposed, the Hazard Index (HI) can be generated. The
HI provides a useful reference point for gauging the potential
significance of multiple contaminant exposures within a single
medium or across media.
The greatest current site risks are attributable to direct contact
witg PCBs in the surface soil. These r~sk levels range from 1.2 x
10- for the Breazeale site to 1.3 x10- for Area B of the
. Plant site. The cancer risk levels associated with exposure to
PCBs in surface soil are summarized on Table 6-5. The predicted
risk levels for exposure to surface soil VOCs- at Area B are low and
do not make a significant contribution to the risks associated with
exposure to PCBs. The hazard index for direct contact with
noncarcinogens ii the surface soil at the Plant site are below
unity (1.9 x 10- ). .
The baselineerisk associated with grass mowing for the Dodgens site
is 8.2 x 10- ..
Lead was detected in the soil at concentrations exceeding
background at the Welborn site. However, the average concentration
(31.4 mg/kg) is well below the OSWER interim directive
(I 9355.4-02) recommended range (500 - 1000 mg/kg). In addition,
this concentration is also well below the soil lead cleanup
concentration that would be generated by using exposure default
values with the EPA Lead Uptake/Biokinetic Model.
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A baseline risk was calculated for the daily consumption of water
from a spring located downgradient from the site. The
noncarcinogenic risk, or hazard index, was calcusated at 0.11. The
carcinogenic risk was determined to be 7.5 x 10-. Although the
risk associated with the future consumption of contaminated
groundwater was not calculated, the appropriate groundwater
standards and health based numbers are contained in Table 6-6. A
comparison of groundwater concentrations with the numbers in this
table will allow a determination to be made concerning which
groundwater contaminants will require remediation.
6.5
Environmental Risks
The environmental receptors at the Sangamo Plant Site and off site
areas ~uld primarily be affected through soil and surface water
sediment pathways. No endangered species or critical habitats are
known to occur in the vicinity of the site.
The constituents in the surface soil could impact terrestrial
animals. Burrowing animals, such as rodents, reptiles, and insects
might be affected by contaminants in the buried wastes.
The surface water ditches at the Plant site and the ditches and
creeks adjacent to the off site areas are low in volume and are not
known to contain edible fish.
7.0
ALTERNATIVE 1:
NO ACTION
7.1.1 DescriDtion
The No Action alternative is retained as the b~seline case for risk
comparison. No remedial actions would be performed on any of the
media of concern (groundwater, soil, sludge, and solid wastes) at
either the plant site or the off-site areas. Waste disposal areas
defined during the ~I would remain in their present condition. The
only active component of this alternative is long-term groundwater
and surface soil monitoring. This program would be implemented to
assess the effect of waste constituents on the site over a 30-year
design life. - --.
Groundwater~lity would be monitored semi-annually by sampling
and analysis for volatiles, semi-volatiles, metals, and PCBs.
Annually, samples would be collected and analyzed for the volatile,
semi-volatile fraction of the Target Compound List (TCL). Dioxins
and furans would also be analyzed annually at the Plant site. If
new compounds are detected, they will be added to the semi-annual
monitoring program. However, since many of the groundwater
monitoring wells are located in fractured bedrock, the water
quality determined by analyses of samples from these fractures may
not indicate groundwater quality in other unconnected fracture
systems. The groundwater quality would change as natural
attenuation degraded the waste constituents present in the water.
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7.0
ALTERNATIVE 1:
NO ACTION
7.1.1 DescriDtion
The No Action alternative is retained as the baseline case for
risk comparison. No remedial actions would be performed on any
of the media of concern (groundwater, soil, sludge, and solid
wastes) at either the plant site or the off-site areas. Waste
disposal areas defined during the RI would remain in their
present condition. The only active component of this
alternative is long-term groundwater and surface soil
monitoring. This program would be implemented to assess the
effec~ of waste constituents on the site over a 30-year design
life.
Groundwater quality would be monitored semi-annually by sampling
and analysis for volatiles, semi-volatiles, metals, and PCBs.
Annually, samples would be collected and analyzed for the
volatile, semi-volatile fraction of the Target Compound List
(TCL). Dioxins and furans would also be analyzed annually at
the Plant site. If new compounds are detected, they will be
added to the semi-annual monitoring program. However, since
many of the groundwater monitoring wells are located in
fractured bedrock, the water quality determined by analyses of
samples from these fractures may not indicate groundwater
quality in other unconnected fracture systems. The groundwater
quality would change as natural attenuation degraded the waste
constituents present in the water.
Surface soil monitoring would be performed annually to evaluate
migration of PCBs. Samples would be collected from each waste
disposal location at Plant and off-site areas~ As with the
groundwater monitoring, a 30 year period has been used as a
basis for cost estimation.
Sanaamo Plant Site
..
This program_would include existing on-site monitoring wells and
off-site W81~~. EPA has classified groundwater as Class IIA on
the plant property. A 30-year period has been used as a basis
for cost estimation. The monitoring program has the following
elements I
Backaround Wells - Monitoring of the following upgradient
wells is proposed. Wells SAMW-1, SBHW-l, and SWHW-l are
located near areas A, B, and the Wastewater Treatment
facility. Areas C, D, E P, G, and H are on top of a ridge
and no upgradient wells are topographically possible.
Background wells will serve as points of comparison for
water quality monitoring results from the waste disposal
areas.
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On-site monitorina wells - Existing wells SAMW-2 and 3,
SBMW-2 and 3, SDMW-l, 2, 3, and 4, SCMW-5, SFMW-6, SGMW-7,
8, and 9,- SHMW-10, SEMW-l, SWMW-2, 3, 4, 5, 6, 7, 7A, 8, and
9 are proposed for long-term monitoring. These wells are
downgradient of waste disposal areas.
Off-property monitorina wells - Several wells (SPMW-l, lA,
IB, 2, 3, 3A, 3B, 4, 5, and 6) are proposed for long-term
detection monitoring. Monitoring wells SPMW-l, lA, and IB
will comprise a nest located south of the site on the south
side of Town Creek. Well SPMW-2 will be a bedrock well
located between Areas C, D, F, G, and H and the Nix Spring.
The remaining wells will be located north of the site.
Monitoring wells SPMW-3, 3A, and 3B, will comprise a
monitoring well nest on the north side of the unnamed
tributary to Twelvemile Creek. Wells SPMW-4, 5, and 6 are
bedrock wells and will be located in drainage swales
downgradient of Sites C, D, F, G, and H. Well nests will
consist of shallow and deep wells. for monitoring groundwater
in the saprolite and one well to monitor groundwater in
bedrock.
The selection of monitoring wells for long-term monitoring of
various waste disposal areas is based on location. Wells are
generally located downgradient of the waste disposal areas.
Each can be used to monitor constituent concentrations
downgradient of the waste disposal areas.
For the No Action alternative, samples would be collected
semiannually and analyzed for PCBs, trichloroethene,
tetrachloroethene, total 1, 2-dichloroethene, 1, 1,
I-trichloroethane, -1, 1-dichloroethene, 1, 1-dichloroethane,
chloroform, ben~enel and 1, 2,-dichloroethane. As part of the
monitoring program, water levels would be measured to assess the
groundwater flow direction. The monitoring and well maintenance
period is assumed to be 30 years.
EPA has classified groundwater as Class IIB at the off-site
areas.
Breazeale Site.
A groundwater monitoring program would be implemented to assess
the effect of waste constituents at the Breazeale site on
groundwater over a 30-year design life. This program would
include existing on-site monitoring wells. A 30-year period has
been used for cost estimation. The monitoring program has the
following elements:
Backaround Well - Monitoring of upgradient well BRMW-l is
proposed. This well is located to the northwest of the site
and would serve as a point of comparison for water quality
monitoring results from the site.
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On-site monitorinG wells - Existing wells BRMW-2, 2A, 3, 3A,
3B, 4, 4A, 5, 5A, 5B, 8, 8A, 10, 11, 12, 12A, 14, AND 14A
are proposed for long-term monitoring. These wells are
located downgradient of the area of waste deposition.
""
On-site detection monitorinG wells -
are proposed for long-term detection
wells are located to the east, west,
plume.
Wells selected for long-term monitoring of the Breazeale site
are generally located downgradient of the area of waste
deposition. The sampling program for the No Action alternative
would be performed on a semi-annual basis and the results would
be submitted in semi-annual ~eports. Chemical analyses are
proposed for PCBs, trichloroethene, tetrachloroethene, benzene,
toluene, total 1, 2-dichloroethene, 1, 1, 2,
2-tetrachloroethane, bis (2-ethylhexyl) phthalate, and 1, 1,
1,-trichloroethane. As part of the monitoring program, water
levels in monitoring wells would be measured to assess the
groundwater flow direction. For cost estimating, the well
monitoring and maintenance period is assumed to be 30 years.
Wells BRMW-7, 9, and 13
monitoring. These
and south of the VOC
Nix Site
A groundwater monitoring program would be implemented to assess
the effect of waste constituents at the Nix site on groundwater
over a "30-year design life. This program would include existing
on-site monitoring "wells. A 30-year period has been used for
cost estimation. The monitoring program has the following
elements:
BackGround Well Monitoring of upgradient well NXMW-l is
proposed. This well is located to the northeast of the site
and would serve as a point of comparison for water quality
monitoring results from the site.
On-site detection monitorina wells - Wells NXMW 2, 3, and 4
are proposed for long-term detection monitoring. These
wells are ~ocated to the north, southeast, and west of the
area of waste deposition, respectively.
The sampling program for the No Action alternative would be
performed on a semi-annual basis and the results would be
submitted in a semi-annual reports. Chemical analyses are
proposed for PCBs. As part of the monitoring program, water
levels in monitoring wells would be measured to assess the
groundwater flow direction. For cost estimating, the well
monitoring and maintenance period is assumed to be 30 years.
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Dodaens Site..
A groundwater monitoring program would be ~plemented to assess
the effect of waste constituents at the Dodgens site on
groundwater o~er a 3D-year design life. This program would
include existing on-site monitoring wells. A 30 year period has
been used for cost estimation. The monitoring program has the
following elements:
Backaround Well - Monitoring of upgradient,well DGMW-l is
proposed. This well is located to the west of the site and
would serve asa point of comparison for water quality
monitoring results from the site.
On-site monitorina wells - Existing wells DGMW-2, 3, and 4
are proposed for long-term monitoring. These wells are
located downgradient of the area of waste deposition.
On-site detection monitorina wells - Well DGMW 3A is
proposed for long-term detection monitoring. This well is
located to the east of the area of waste deposition near
~ddle Fork Twelvemile Creek.
Wells select~d for long-term monitoring of the DOdgens site are
located downgradient of the area of waste deposition. The
sampling program for the No Action alternative would be
performed on a semi-annual basis and the results would be
submitted in semi-annual reports. Chemical analyses are
proposed for PCBs, trichloroethene, tetrachloroethene, bis
(2-ethylhexy) phthalate, cadmium, copper, lead, and silver. As
part of the monitoring program, water levels in monitoring wells
would be measured to assess the groundwater flow direction. For
cost estLmating, the well monitoring and maintenance period is
assumed to be 30 years.
Cross Roads Site
.A groundwat~.onitoring program would be implemented to assess
the impact of.the Cross Roads Site on groundwater over a 3D-year
design lifsr--This program would include existing and proposed
monitoring wells. A 3D-year period has been used for cost
estimation. The monitoring program has the following elements:
Backaround Well - Monitoring of upgradient well CRMW-l is
proposed. This well is located north of the site and will
serve as a point of comparison for water quality monitoring
results from the site.
On-Site Monitorina Wells - Existing wells C~-2, 3, and 3A
are proposed for long-term monitoring. These wells are
located downgradient of the area of waste deposition.
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On-Site Detection Monitorina Wells - Well nest CRMW-4, 4A,
and CRMN-5, SA are proposed for long-term detection
monitoring. These wells are located southeast and east of
the area of waste deposition, respectively.
The sampling program for the No Action alternative would be
performed on a semi-annual basis and the results would be
submitted in semi-annual reports. Chemical analyses are
proposed for PCBs, trichloroethene, tetrachloroethene, total
1,2-dichloroethene, silver, cadmium, and cyanide. As part of
the monitoring program, water levels in monitoring wells would
be measured to assess the groundwater flow direction. For cost
estimating, the monitoring and well maintenance period is
assumed to be 30 years.
John Trotter Site
A groundwater monitoring program would be implemented to assess
the impact of waste constituents at the John Trotter site on
groundwater over a 30-year period. This program would include
existing on-site monitoring wells. A 30-year period has been
used for cost estimation. ~he monitoring program has the
following elements:
Backaround Well - Monitoring of upgradient well JTMW-l is
proposed. This well is located north of the site and would
serve as a point of comparison for water quality monitoring
results from the site.
On-site detection monitorina wells - JTMW-2, 3, 3A, and 4
are proposed for long-term detection monitoring. These
wells are located south of the area of waste deposition.
Wells selected for long-term groundwater moni~oring at the John
Trotter site are located downgradient of the area of waste
deposition. The sampling program for the No Action alternative
would be performed on a semiannual basis and the results would
be submitted in semi-annual reports. Chemical analyses are
proposed for PCBs, trichloroethene, tetrachloroethene, antimony,
cadmium, copper, lead, and silver. As part of the monitoring
program, wate~ levels in monitoring wells would be measured to
assess the ~oundwater flow direction. For cost estimating, the
well monitor~nq and maintenance period is assumed to be 30
years.
Welborn Site
A groundwater monitoring program would be implemented to assess
the effect of waste constituents at the Welborn site on
groundwater over a 30-year design life. This proqram would
include existing on-site monitoring wells. A 30-year period has
been used for cost estimation. The monitoring program has the
following elements:
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Backaround Well - Monitoring of upgradient well WBMW-l is
proposed. This wells is located to the northeast of the
site and would serve as a point of comparison for water
quality monitoring results from the site.
On-site detection monitorina wells - Wells WBMW 2, 3, and 4
are proposed for long-term detection monitoring. These
wells are located to the east and south of the areas of
waste deposition.
Wells selected for long-term monitoring of the Welborn site are
generally located downgradient of the area of waste deposition.
The sampling program for the No Action alternative would be
performed on a semi-annual basis and the results would be
submitted in semi-annual reports. Chemical analyses are
proposed for PCBs and lead. As part of the monitoring program,
water levels in monitoring wells would be measured to assess the
groundwater flow direction. For cost estimating, the well
monitoring and maintenance period is assumed to be 30 years.
7.1.2 Effectiveness
The no-action alternative would not reduce the toxicity,
mobility or volume of contaminated media at the site. Since
monitoring is the only component of this alternative, there
would be no increase in protectiveness to human health or the
environment.
7 . 2 ALTERNATIVE 2:
LIMITED ACTION
7.2.1 DescriDtion
The Limited Action alternative establishes institutional
measures to limit exposure pathways in the .four affected
groundwater, soil, sludge, and solid wastes. These
institutional measures include the following:
media:
*
re8t~1ctions on groundwater use,
*
fencing to limit access to affected solid materials,
and
*
deed restrictions to control future land use.
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Groundwater
As proposed in this alternative, Limited Action on groundwater
would be used only for the Plant, Cross Roads, Breazeale, and
Dodgens sites.
Limited Action at these locations would consist of groundwater
access restrictions, provisions for one connection to public
water supply, and groundwater monitoring. Access to groundwater
would be controlled through deed restrictions. Public water is
available throughout the area. Long-term monitoring would be
performed as described in Alternative 1, No Action.
Soils. Solid Wastes. and Sludae
Limited Action for soils, solid wastes, and sludge at each site
would consist of access control through fencing and deed
restrictions. The areas containing soils, solid wastes, and
sludge with PCB concentrations exceeding 25 ppm would be
fenced. The fence would consist of six-foot high welded wire
with one strand of barbed wire extending along" the top. The
sites would be posted and gates would be kept locked. In
addition to fencing, legal actions would be implemented to
provide deed restrictions concerning access and future site use.
7.2.2 Effectiveness
Fences installed around the affected areas would prevent direct
human contact with affected material, but would not reduce
potential "migration by surface erosion. Inhalation of waste
constituents was not found in the RI to be an-exposure pathway.
Limited Action on groundwater would restrict future use and
consumption of groundwater in and around the affected areas
(Plant, Breazeale, Dodgens, and Cross Roads) through
institutional controls. As discussed in Section 7.1.2, natural
attenuation of waste constituents in fractured bedrock may
continue to lower the concentrations of those constituents and
those of their degradation products.
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7 . 3 ALTERNATIVE 3:
LIMITED ACTION WITH CONTAINMENT OF SOLIDS
7.3.1 DescriDtion
This alternative combines the institutional controls for
groundwater and solid materials that are described in Section
7.2.1, with containment of affected solid materials by capping.
Table 7-1 contains estimated volumes of affected material. This
alternative would contain in place the total volume of solids.
The purpose of containment is to reduce contact of waste
constituents with receptor populations and the environment.
Reduction would be accomplished by minimizing infiltration of
waste constituents into the groundwater, inhibiting erosion of
the constituents, and by providing a barrier to direct contact.
Containment would leave affected soils in place. A cap over
affected materials at the surface would reduce contact between
percolating water and waste constituents, thereby reducing
leachate production. In addition, a cap installed over the
affected materials would prevent 'erosion of waste constituents
by wind or water. Sites requiring containment would be graded
to provide surface drainage around and away from contained
solids. A containment cover would require maintenance and
inspection.
The alternative would be implemented at the Plant and off-site
areas.
The following two designs are being considered for the cover:
-
'ODtion 3a - Composite Cover
The composite cover option would include a cap consisting of the
following components I
*
12 inches of topsoil
2 fe~t of compacted clay
*
a layer of geotextile material
The clay lay,r would be compacted to reduce permeability to less
.than 1 x 10- cm/sec. The final surface contours of the cap
would be graded to promote runoff rather than infiltration
during rainfall.
*
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The composite cover would be sown with shallow rooted grasses to
minimize cap erosion. Grasses would be selected that prevented
penetration of. the clay layer by the elements.
OPtion 3b - Multi-media Cover
The multi-media cover option would include a cap consisting of
the following components:
*
6 inches of topsoil
*
l8inches of rooting zone soil
*
1 layer of geote~tile
1 layer of drainage material
*
*
1 layer of flexible membrane liner
2 feet of clay
*
The multi-media cover design complies with SC DHEC requirements
for hazardous waste cover systems and would perform in
accordance with US EPA minimum technology guidance. Like the
composite cover option, the multi-media cover would be graded to
promote surface drainage and sown with shallow-rooted grasses.
Containment of sludge in the active lagoon would be accomplished
by placement of a bentonite cover. The bentonite cover would be
approximately six inches thick and would be placed over the
entire sludge layer in the lagoon. This action would be taken
to supplement the exis.ting unconsolidated bentonite cover and
would enable the present treatment system to continue
operation. Sludge in the inactive lagoon would be covered in
the same manner.
..
7.3.2 Effectiveness
The short-term effectiveness of Alternative 3 would be provided
by using construction methods and practices that minimize the
movement of-waste constituents. Long-term protectiveness would
be provided through natural degradation of waste constituents
and by controlling the following migration routes:
*
Particulate releases to the air,
*
Direct contact with affected media,
Ground surface runoff of affected materials,
*
*
Surface water infiltration into affected soil or wastes
and subsequent, migration through groundwater.
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-64'-
Compared to .a_.composite cover, the multi-media cover provides
greater long-term effectiveness by supplying a more substantial
barrier to infiltration. Results of the Hydrologic Evaluation
of Landfill Performance (HELP) computer program show that Option
a would reduce infiltration by approximately 92 percent and
Option b would reduce infiltration by approximately 99 percent.
However, since the primary objective is elimination of direct
contact with waste constituents, the small increase in
infiltration allowed by a composite cover does not eliminate it
from consideration.
Monitoring effluent from the lagoon has shown the cover to be
effective in eliminating migration of PCBs through water.
Placement of additional bentonite would be carried out to
supplement the existing cover.
7 . 4 ALTERNATIVE 4: LIMITED ACTION WITH CONTAINMENT OF SOIL AND
SLUDGE AND OFF-SITE DISPOSAL OF SOLID WASTES
7.4.1 DescriDtion
Alternative 4 consists of the following components: Limited
Action for groundwater combined with capping of soil and sludge
as described in Sections 7.2.1 and 7.3.1 and off-site disposal
of solid wastes. On the basis of information collected during
the RI Phase I, approximately 2,900 cubic yards of solid wastes
would be excavated, pre-processed, and transported off site for
treatment by thermal. destruction or disposal in a TSCA secure
chemical landfill. Using a typical density of 1.3 tons/cubic
yard, the total weight of excavated solid waste would be
approximately 3,800 tons. This average density was
approximately that of solid wastes removed from Area D of the
plant site. All remaining soil and sludge volumes would be
capped.
This alternative includes off-site disposal by both incineration
and landfilling to increase implementability through maximizing
the potential~~or available commercial treatment and disposal
capacity. Th~rmal destruction of wastes would occur in a
permitted rotary kiln incinerator owned by a commercial vendor.
To analyze this alternative, an assumption will be made that
approximately ten percent of the solid. waste (380 tons) would be
hauled to an incinerator. The incinerator nearest the site is
approximately 850 miles away. An assumption will also be made
that approximately 90 percent (3,400 tons) of solid wastes would
be hauled to a landfill. The landfill considered is
approximately 500 miles from the site.
Percentages of solid waste suitable for landfilling and
incineration are based on the classifications of wastes
excavated from Area D of the Plant site. These wastes were
excavated and segregated according to size and type.
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The selected. waste hauler and disposal facility will be in
compliance with applicable federal (RCRA and TSCA) and
appropriate state environmenta~ and public health statutes. If
necessary, RCRA manifests required under 40 CFR Parts 262 and
263 will be completed.for all wastes shipped off-site. In
addition, the facility will comply with applicable hazardous
waste generator requirements under 40 CFR-Part 262.
This alternative would be implemented at the P~ant and off-site
areas.
7.4.2 Effectiveness
~
The effectiveness of Limited groundwater Action was discussed in
the description for Alternative 2, and is the same for this
alternative. Short-term effectiveness during waste removal and
soil capping is provided by construct~on techniques that
minimize handling and reduce the dispersion of waste
constituents during containment and excavation activities.
Excavation and movement of solid wastes would result in a period
during which the potential for additional exposure would exist.
Use of measures for run-off prevention and dust control would
provide protection to human health and the environment during
construction. Neither toxicity nor volume of groundwater, soil,
or sludge materials would be reduced by implementation of this
alternative.
Off-site management of wastes by landfilling would not reduce
the toxicity or volume of the materials. Mobility of waste
constituents removed would be reduced. Hauling wastes off-site
could potentially expose those persons using the same roads, or
living or working along the route, to affected materials.
Long-term effectiveness would be provided by proper cap
maintenance and the remediation achieved by waste removal and
off-site treatment or disposal. Volume and toxicity of affected
soil and sludge would not be altered by the techniques used in
this alternative.
For containment of soils and sludges, long-term protection would
be provided-through the control of several migration routes as
follows:
*
Particulate releases to the air,
*
Direct contact with affected media,
Ground surface runoff of affected sediments,
*
*
Surface water infiltration into affected soil or wastes
and subsequent migration through groundwater.
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However, th~s-~lternative would not change the characteristics
of the affected soil and sludge as described in Section 7.3.1.
7.5 ALTERNATIVE 5:
DISPOSAL OF SOLIDS
LIMITED GROUNDWATER ACTION WITH ON-SITE
7.5.1 Descri~tion
The components of this alternative include the measures
described in Section 7.2.1 for limited action on groundwater and
excavation and disposal of affected solid materials: soil,
sludge, and solid wastes. Sludge from the active lagoon would
be dredged and mechanically dewatered. Soils and solid wastes
containing greater than 25 ppm of PCBs would be excavated and
transported to an on-site TSCA unit designed and constructed
specifically for the disposal of these materials. A landfill
closure would be implemented after the disposal is complete.
This alternative would be implemented at all locations.
Evaluation of Alternative 5 is based on excavation and disposal
of the following volumes of affected materials:
An on-site, double-lined landfill would be constructed for
disposal of affected solids for a capacity of 93,000 cubic
yards, which takes into account a 25 percent expansion of
74,100 cubic yards of solids after excavation. Landfill
dimensions would be approximately 400 feet by 300 feet at
grade. The depth of excavation below ground surface would
be approximately 14 feet, and the berm height around the
landfill would be approximately 17 feet.
The landfill would be constructed according to regulatory
requirements of the State of South Carolina and the US EPA.
These requirements include construction of a double liner
with a leachate collection system above and between the
liners. The top liner must prevent the migration of waste
constituents into the lower liner. The bottom liner must
prevent migration of waste constituents. South Carolina
Code R.6~79.264.301 (c) requires a three-feet thick layer
of recompacted clay or other natural material as a bo;tom
liner. The permeability must be no more than 1 x 10-
centimeters per second. The landfill cap must be less
permeable than the soils ~ediately below the landfill.
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Landfill Operation and Maintenance (O&M) would include a
number of tasks necessary to protect the integrity of the
disposal unit. Quarterly maintenance would be performed on
the access road, the leachate collection and treatment
system, and the landfill, which is expected to cover
approximately three acres. groundwater monitoring would be
performed semiannually. The active maintenance period used
for estimating O&M costs is 30 years.
7.5.2 Effectiveness
,.
The effectiveness of Limited Action on groundwater was discussed
in Section 7.2.2 and is similar to that provided by this
Alternative. The short-term effectiveness, during
implementation of this alternative for excavation and on-site
disposal of solid materials, would be provided by the use of
excavation techniques that minimize handling and reduce the
dispersion of waste constituents. The large volume of material
that would be moved would result in an extended period during
which the potential for exposure would exist. Use of measures
for the prevention of run-off and the control of dust would
provide some protection to human health and the environment
during construction. .
The long-term effectiveness of
provided by proper maintenance
the volume nor the toxicity of
altered by the techniques used
source materials would prevent
into the aqUifer.
this alternative would be
of the on-site landfill. Neither
affected materials would be
in this alternative. Removal of
further migration of contaminants
-
7 . 6 ALTERNATIVE 6:
DISPOSAL OF SOLIDS
LIMITED GROUNDWATER ACTION WITH OFF-SITE
7.6.1 .
-
Alternative 6 consists of limited action on groundwater as
described ia Section 7.2.1; excavation of affected solid
materials, as described in Section 7.5.1, and off-site disposal
in a secure TSCA landfill. The conceptual layout of this
alternative would be the same as that for Alternative 5, except
that once excavated, the material would be taken off-site.
Solid materials would be excavated, loaded directly onto trucks,
and transported to the selected landfill. Lagoon sludge would
be excavated, dewatered, and stockpiled. The stockpiled sludge
would then be hauled off-site. Water collected during sludge
dewatering would be transported off-site for treatment.
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The selected.waste hauler and the disposal facility will be in
compliance with applicable federal and state environmental and
public health statutes. If necessary, RCRA manifests required
under 40 CFR Parts 262 and 263 will be completed for all wastes
shipped off-site. In addition, the facility will comply with
applicable hazardous waste generator requirements under 40 CFR
Parts 262.
Transporting vehicles will be approved by DOT and will display
the proper DOT placard. For estimated cost, it is assumed that
90 percent of the material can be handled by a facility
approximately 500 miles from the Sangamo Plant site. The
remaining ten percent of the solid wastes would be transported
approximately 850 miles to an incinerator.
7.6.2 Effectiveness
The effectiveness of excavation combined with limited action on
groundwater was discussed in the description for Alternative 5.
it remains unchanged for this alternative.
Off-site management of wastes by landfilling would not reduce
the toxicity or volume of materials. However, long-term
mobility of waste constituents would be reduced. Hauling wastes
off-site could potentially expose those persons using the same
roads, or living or working along the route, to affected
materials.
7 . 7 ALTERNATIVE 7:
DISPOSAL OF SOLIDS
TREATMENT OF GROUNDWATER WITH ON-SITE
7.7.1 DescriDtion
Alternative 7 is comprised of the following two components:
1)
Solid Material Remediation which includes excavation
and g~sposal in a secure TSCA landfill constructed
on-aite as described in Section 7.5.1. This
remediation technique has been discussed and needs no
further explanation for the purposes of this
alternative.
2)
Groundwater Remediation which consists of groundwater
collection, treatment, and discharge at the Plant,
Breazeale, Dodgens and Cross Roads sites.
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The groundwater remediation techniques discussed in this section
are applicable to the Plant, Breazeale, Dodgens and Cross Roads
sites.
Groundwater collection and treatment is not necessary at the
John Trotter, Nix and Welborn sites. A description of the
components of limited groundwater action that would be performed
at these three off-site areas appears in Section 7.2.1.
Excavation of all solid materials containing greater than 25 ppm
PCBs would occur at each affected location.
As formulated for this alternative, groundwater would be
collected to the extent p~ssible by use of recovery wells.
Recovery wells would be installed downgradient of the sites. By
pumping each well, an effort would be made to create a hydraulic
barrier.
.'
Where pumping of individual recovery wells is successful in
removing affected groundwater, it accelerates the natural
flushing of waste constituents sorbed on the soil in the aquifer
by increasing the flow rate of relatively clean water from areas
up gradient of the constituent source through the affected areas.
Sanqamo Plant Site
Groundwater at the Sangamo Plant site occurs primarily within
the joint and fracture system of the bedrock. Groundwater flow
within the bedrock at the Sangamo Plant site is limited by the
size, orientation, and interconnection of open joints and
fractures. These well$ may not remove constituents that are
heavier than water. Groundwater discharge f~om wells
surrounding the ridge would contain primarily VOCs. This water
would be treated by air stripping. Groundwater downgradient of
Areas A, B, E, and the waste water treatment facility would be
treated by carbon adsorption. In this area, RI data showed PCBs
in groundwater collected from 10 of 17 wells. VOCs have been
detected in a majority of these wells. Treated water would be
discharged in~o Town Creek.
Breazeale Site
The assumed pumping scheme for the Breazeale site consists of
groundwater extraction wells screened in the saturated portions
of the saprolite and floodplain deposits.
Groundwater discharge would contain VOCs and would be treated
through air stripping. Treated water would be discharged into
Wolf Creek.
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Doda~ns site ---
The assumed pumping scheme for the Dodgens site consists of
groundwater extraction wells screened-in the saturated portions
of the saprolite.
Groundwater discharge may contain VOCs and one semi-volatile.
Collected groundwater would be treated through air stripping and
carbon adsorption, if necessary. Treated water would be
discharged to Middle Fork Twelvemile Creek.
7.7.2 Effectiveness
The effectiveness provided by this alternative is related to
three criteria: -
*
the extent to which the groundwater collection system
is capable of preventing movement of affected
groundwater from the Plant, Breazeale, Cross Roads and
Dodgens sites,
the gradual reduction in the toxicity of groundwater by
treatment,
*
*
reduction of volume of the ,affected material, and
proper design, construction, and maintenance of the
land disposal unit.
The short-term effectiveness provided during construction of
this alternative for groundwater collection and'on-site disposal
of solid materials would be provided by construction techniques:
and well installation methods that reduce the migration of waste
constituents. The large volume of material to be moved during
excavation would result in a period during which a potential for
exposure would exist. Use of measures for the prevention of
run-off and the control of dust would provide a measure of
protection tQ~uman health and the environment during
construction.___The solid materials would not be reduced in
either toxieity or voiume by the implementation of this
alternative.
*
The on-site land disposal component of this alternative would be
effective in protecting human health and the environment from
exposure to waste constituents near the land disposal unit.
Effectiveness would be maintained by use of a program that
includes cap and cover care at the landfill, groundwater
monitoring, and leachate treatment.
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7.8 ALTERNATIVE 8: LIMITED GROUNDWATER ACTION WITH ON-SITE
TREATMENT AND DISPOSAL OF SOLIDS
7.8.1 Description
This alternative consists of limited action on groundwater, as
described in Section 7.2.1, coupled with the excavation of solid
materials and treatment of the materials in an on-site treatment
system. For screening purposes, four treatment technologies
were considered: thermal destruction, thermal separation,
chemical dechlorination, and stabilization.
Each of the following representative process options has been
selected based on commercial availability and/or history of
prior full-scale application:
ODtion 8a:
Thermal Destruction - Rotary
kiln incineration
..
ODtion 8b:
Thermal Separation - Low
temperature thermal stripping
Chemical Dechlorination -
Glycolate dechlorination
ODtion 8c:
ODtion 8d:
Physical Stabilization
Solidification/fixation
The first step in this alternative would include excavation of
solid materials affected with greater than 1 ppm, 10 ppm, or 25
ppm PCBs as appropriate. Following excavation, the materials
would be temporarily stockpiled on the plant .site. This
material consists of 2,900 cubic yards of solid waste and 48,200
cubic yards of soils and sediments. Sediments would be dredged
and dewatered prior to transport to the treatment area. Liquids
produced during dewatering would be temporarily stored in tanks
and then transported for treatment in the leachate treatment
unit at the o~~site TSCA landfill. The average haul distance
from on-site excavation areas site would be less than
approximately one-half mile. The average haul distance from
remote site excavation areas would be approximately 2.5 miles.
The volume of the treatment residuals would be determined during
a treatability study. Limited field trials may be required to
confirm treatment effectiveness and to characterize treatment
residuals.
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Each of the .treatment process options would require
pre-processing of the solids to remove oversized items and to
reduce the particle size. The cost and analysis of this
alternative is based in part on the assumption that a portion of
the total mass of solids would be rejected during
preprocessing. The assumption of a one percent rejection rate
is used because much of the affected areas. are not covered with
thick stands of trees.
These materials would require off-site disposal and/or treatment
as a TSCA regulated waste in a permitted landfill.
Under all four treatment options, excavated areas would be
backfilled with native soil, graded, and restored to support
vegetation. A long-term groundwater monitoring program would be
implemented, as described in Alternative 1.
QDtion 8a:
Thermal Destruction
This option includes use of a transportable rotary kiln
incinerator that would be located at the site by a commercial
vendor. The unit would meet the substantive requirements of all
applicable permits.
The system would consist of the following typical unit
operations: .
*
Material preprocessing/sorting
*
Rotary kiln incinerator
Ash handling/storage
*
*
Secondary combustion of off-gases
Baghouse dust collection
*
*
Wet-:tl.crubber
*
Sc~ber water treatment
Start-up tests required prior to full-scale operation may
require from six months to one and one-half years.
Treated scrubber water could be temporarily stored in a tank and
transported to the leachate treatment system located at the
on-site disposal unit. Complete system details would be
developed as a remedial design task.
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Option 8b:
Thermal Separation
Thermal separation is a process option retained from the
screening of thermal treatment technologies.
Thermal separation is a process in which soils or sludges with
organic compounds are heated in a rotary dryer. Volatilized
organics are transferred, using nitrogen as the carrier gas, and
cooled to condense organic components. The condensed components
are then collected for further treatment at an appropriate
facility.
The permit requirements for this system are still being
determined by the owner of the equipment. However, as a
"processing," rather than a "destruction" method, attainment of
the substantive requirements of RCRA or TSCA permits may not be
required.
This system would consist of the following typical unit
operations:
*
Material preprocessing/sorting
Rotary dryer thermal separation
*
*
Carbon adsorption unit (or combustion afterburner)
Cooling and condensate train
*
*
Off-gas handling trailer
-
Residuals management unit
On the basis of pilot studies, a treatment capacity of five tons
per hour can be expected. Assuming a typical density of
approximately 1.3 tons per cubic yard of material, the estimated
time expected to complete treatment would be approximately two
years. This-@stimate is based on the use of one treatment
system and 30 percent downtime.
*
OPtion 8c:
Chemical Dechlorination
The proprietary KPEG process is used to represent chemical
treatment technologies appropriate for use in treating soils
containing PCBs and other solids. Since the KPEG process
operates under highly alkaline conditions, aluminum sludge and
possibly other metals that react under these conditions may
increase the amount of reagent required by competing for the
KPEG: therefore, this process option is not considered
applicable for treatment of sludges. Chemical treatment
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directed toward PCBs may provide coincidental treatment of other
chlorinated volatile organics.
The chemical treatment system would consist of the following
typical operations:
* Material preprocessing/sorting
* Reagent storage
* Solids mixing
* Solids reaction
* Decant and solids washing
* Reagent recycling and condensation
Process wastewaters would be temporarily stored in tanks and
later transported to the leachate treatment system.
The present estimate by Galson Research Corporation
(patenj-holder) of the achievable treatment rate using KPEG is
250 yd /d. Continuous (24 hr/d) processing of the entire
volume would require over one year. The estimate assumes a
minimum of 30 percent downt~e for the process.
Option 8d:
Phvsical Stabilization
Physical stabilization, or solidification/fixation was
considered for use as a treatment process for soil and sludge.
This treatment would reduce the mobility of waste constituents
by binding the soil or sludge mass into solid matrix with low
permeability that resists leaching. This alternative would
increase the volume of affected material.
The treatme~.:.system would consist of the following typical unit
operations I
*
Material preprocessing/sorting
Setting agent storage
*
*
pugmill mixing
The equipment required for solidification/fixation would be
similar to that used for cement mixing. The treated material
would be transported to the on-site disposal unit for curing and
disposal.
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Since the processes used in solidification/fixation are
logistically s~ilar to those of cement mixing, the t~e
required to treat the soil and sludge' would not vary
significantly from that required for excavation.
7.8.2 Effectiveness
The short-term protectiveness provided during excavation and
treatment of all solids containing more than 25 ppm PCBs would
be accomplished by use of construction methods that minimize
transport. Temporary berms and run-off control ditches would be
used to control transport of affected soils.
Long-term protection would be accomplished by removal and
destruction of waste constituents. Toxicity, mobility, and
volume of hazardous materials would be reduced by treatment.
Any potential long-term surface migration by the low
concentrations of waste constituents that remain in place would
be l~ited by placemen~ of clean backfill.
"
Groundwater quality would be monitored by the sampling and
analysis' program proposed as part of the L~ited Action
response.
Four treatment processes are under consideration as part of this
alternative: rotary kiln incineration, thermal separation,
glycolate dechlorination, and stabilization/fixation. Each
process has been shown to be effective in reduction of at least
. one of three waste characteristics: toxicity, mobility or
volume for one or more of the constituents of concern. The
combination of treatment with disposal of residuals in an
on-site secure landfill would provide an effective means of
reducing toxicity, mobility, and volume of waste constituents.
ODtion 8a:
Thermal Destruction (Rotarv Kiln)
The effectiveness of incineration as a treatment process for
organic compounds has been demonstrated at numerous sites. This
treatment process would affect all three of the characteristics
for PCBs and halogenated and nonhalogenated volatiles. It would
not affect any of the three characteristics for affected
materials containing metals.
ODtion 8b:
Thermal SeDaration
Thermal separation has been shown to have a removal efficiency
of >99.95 percent for PCBs. Its effectiveness for treatment of
volatile organic compounds has also been demonstrated.
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If results oŁ current tests using this process indicate
applicability at this site, a treatability study would be
performed on samples of soil and sludge taken from the Sangamo
Plant as part of the Remedial Design phase of site remediation.
OPtion 8c:
Glvcolate Dechlorination (KPEG)
KPEG, while not specifically designed for the treatment of
organics other than PCBs, may provide further protection by
removing volatile organic compounds during reaction or
soil-washing phases. It has been used at full scale for
treatment of PCBs in soil, but it has not been used routinely
for treatment of waste constituents like those found at the
Plant site. The KPEG process would not affect the
characteristics of metals in soil. A treatability study will be
conducted to evaluate its overall effectiveness on the waste
constituents present at the site.
Treated residuals from each of the three preceding process
options would be analyzed for the presence of metals. Results
of the RI indicate that concentration of metals will not exceed
permissible limits for land disposal.
Option 8d:
Physical Stabilization
This process, used ~n the treatment of inorganic compounds, has
a well documented history of successfully immobilizing waste
constituents. A limit to the effectiveness of this process is
the quantity of oil and grease present in affected media. The
concentrations of oil and grease are more significant in
determining the applicability of stabilization than the PCB
concentrations in the affected media. A treatability study
would have to be performed to determine the effectiveness of
this process on the concentrations of waste constituents
detected at the site.
7 . 9 ALTERHATIYB 9: TREATMENT OF GROUNDWATER. LIMITED ACTION ON
SOILS. IN SFTU TREATMENT OF SOIL. OFF-SITE TREATMENT AND
DISPOSAL OF SOLID WASTES. AND ON-SITE TREATMENT AND DISPOSAL OF
SLUDGE
7.9.1 DESCRIPTION
Several different components make up this alternative and are
discussed in this section. The groundwater collection technique
for this alternative is discussed in Section 7.7.1.
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Remediation of the 48,200 cubic yards of affected soil would be
through in-situ biodegradation. This process option, coupled
with groundwater collection, can provide substantial reduction
in concentrations of organic compounds into water and carbon
dioxide in the presence of sufficient oxygen and nutrients and
phosphorous.
Typical unit processes that would be required for this element
follow:
*
Biological inoculum fermenter
*
Nutrient feed system
Oxygenation system
*
Chemical/Biological additive control and feed system
Site specific pilot tests would be required to estLmate a tLme
of completion for remediation.
*
~
Treatment of affected sludge which consists of 23,000 cubic
yards, would be performed on-site with one of the following
processes: thermal destruction, thermal separation, glycolate
dechlorination, or physical stabilization. However, if
treatability data so indicates, bioremediation of sludge may be
appropriate. The descriptions for the first four options are
discussed in Section 7.8.1. The treatment residuals would
remain on-site for disposal in a secure TSCA landfill. The
volume of the treatment residuals would be determined during the
treatability study.
In this alternative, solid wastes would be excavated then
treated and disposed of off-site in a TSCA landfill. If thermal
destruction is the option selected for sludge treatment, solid
wastes would be treated on-site; otherwise, the 2,900 cubic
yards of solid wastes would be shipped off-site for thermal
destruction. This response action is discussed in Section
7.8.1.
7.9.2 Effectiveness
The short-term protection provided during excavation and
treatment of all sludges and solid wastes containing greater
than 25 ppm PCBs would be sLmilar to that discussed in Section
7.4.2. However, Lmplementation of this alternative would
require a greater volume of material to be excavated than that
included in Alternative 4. Temporary berms and run-off control
ditches would be used to. control transport of affected solids at
ground surface.
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Long-term protection would be accomplished by removal and
destruction of sludges and solid wastes. The toxicity,
mobility, and volume of these media would be reduced by
treatment.
The long-term effectiveness of the groundwater remediation
system is unknown.
The long-term effectiveness of biodegradation is poor in areas
where affected soils lie above groundwater. However, limited
actions in those areas would supplement bioremediation and
increase the protection of human health and the environment from
exposure to waste constituents. The effectiveness would be
maintained by use of a program including institutional controls,
surface care in bioremediation areas, and groundwater
monitoring.
The on-site land disposal component of this alternative would be
effective in protecting human health and the environment from
exposure to waste constituents in the vicinity of the land
disposal unit. The effectiveness would be maintained by use of
a program including surface care at the landfill, groundwater
monitoring, and leachate treatment.
7.10 ALTERNATIVE 10: LIMITED GROUNDWATER ACTION WITH ON-SITE
TREATMENT AND OFF-SITE DISPOSAL OF SOLIDS
7.10.1 DescriDtion
The components of this alternative are discussed as follows:
1.
Groundwater Component - limited action, Section 7.2.1.
Excavation and treatment of soil, sludge, and solid
wastes - limited groundwater action with on-site
treatment and off-site disposal of solids, Section
1 . 8:; 1..
2.
The componeft~.that makes this alternative different from
Alternative 8 is off-site disposal of treatment residuals.
7.10.2 Effectiveness
The short-term protection provided during excavation and
treatment of all solids containing greater than 25 ppm PCBs
would be provided by use of construction methods that minimize
transport of affected materials. Temporary berms and run-off
control ditches would be used to control transport of affected
solids at ground surface.
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Long-term protection would be accomplished by removal and
destruction of waste constituents. The toxicity, mobility, and
volume of affected materials would be reduced by treatment. Any
potential long-term migration at ground surface by the low
concentrations of waste constituents that remain in place would
be limited by placement of clean backfill.
Groundwater quality would be monitored by the sampling and
analyses proposed as part of the no action response described in
Section 7.1.
The treatment processes under consideration as part of this
alternative have been shown to be effective in reducing at least
one of three waste characteristics: toxicity, mobility or
volume for one or more of the constituents of concern. These
treatment processes are discussed in Alternative 8. The
combination of treatment with disposal of residuals in an
off-site secure TSCA landfill would provide an effective means
of reducing toxicity, mobility, and volume of waste
constituents.
..
7 . 11 ALTERNATIVE 11: TREATMENT OF GROUNDWATER WITH ON-SITE
TREATMENT AND ON-SITE DISPOSAL OF SOLIDS
7.11.1 DescriDtion
The components that make up this alternative are identical to
those of Alternative 8 with one exception: in this alternative,
groundwater would be remediated by collection, treatment and
disposal. This action for groundwater is described in Section
7.7.1.
7.11.2 Effectiveness
The short-term protection provided during excavation and
treatment of-all solids containing greater than 25 ppm PCBs
would be accomplished by use of construction methods that
minimize transport of affected materials. The large volume of
material to be moved during excavation would result in a period
during which a potential for exposure would exist. Temporary
berms and run-off control ditches would be used to control
transport of affected solids at ground surface.
Long-term protection would be accomplished by removal and
destruction of waste constituents. The toxicity, mobility, and
volume of hazardous materials would be reduced by treatment.
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Any potential- long-term migration at ground surface by the low
concentrations of waste constituents that remain in place would
be lLmited by placement of clean backfill.
The treatment processes under consideration as part of this
alternative including incineration, thermal separation,
glycolate dechlorination, and stabilization/fixation, have been
shown to be effective in reduction of at least one of three
waste characteristics: toxicity, mobility, or volume for one or
more of the constituents of concern. These treatment processes
are discussed in Alternative 8. The combination of treatment
with dispOsal of residuals in an on-site secure landfill would
provide an effective means of reducing toxicity, mobility, and
volume of waste constituents.
.'
The on-site land disposal component of this alternative would be
effective in protecting human health and the environment from
exposure to waste constituents in the vicinity of the land
disposal unit. The effectiveness would be maintained by use of
a program including surface care at the landfill, groundwater
monitoring, and leachate treatment.
7.12 Alternative 12: Treatment of Groundwater with On-Site
Treatment and Off-Site Disposal of Solids
7.12.1 DescriDtion
The components that comprise this alternative are the same as
those that make up Alternative 10, with one exception: this
alternative includes collection, treatment, and discharge of
groundwater. The elements that would be used to excavate and
treat solid materials are described in Section 7.8.1. The
elements that would be used to transport and dispose the materials
are described in Section 7.6.1.
7.12.2 Effectiveness
The short-ter.. protection provided during excavation and treatment.
of all solids containing greater than 25 ppm PCBs would be
accomplished by use of construction methods that minimize
transport of affected materials. Excavation of all solids would
result in a period during which the risk of exposure would be
increased. Temporary berms and run-off control ditches would be
used to control transport of affected solids at the ground
surface. Any wastes hauled off-site could potentially expose
those persons using the same roads, or living or working along the
route, to affected treatment residuals.
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Long-term protection would be accomplished by removal and
destruction of waste constituents. The toxicity, mobility, and
volume of waste materials would be reduced by treatment. Any
potential long-term migration at ground surface by the low
concentrations of waste constituents that remain in place would be
limited by placement of clean backfill and monitored by the
sampling and analyses proposed as part of -the limited action plan
for solids.
i
! '
i
The treatment processes under consideration as part of this
alternative, including rotary kiln incineration, thermal
separation, glycolate dechlorination, and stabilization/fixation
have been shown to be effective in reduction of at least one of
three waste characteristics: toxicity, mobility or volume for
one or more of the constituents of concern. These treatment
processes are discussed in Alternative 8. The combination of
treatment with disposal of residuals in an off-site secure
landfill would provide an effective means of reducing toxicitYi
mobility, and volume of was~e constituents.
-,
Alternative 13: Consolidated Remedv/No Action. Limited Action.
Excavation and Treatment of Active and Inactive Laaoon Sludaes
7.13.1 Description
This alternative includes remedial action elements previously
discussed in the descriptions of other alternatives and
. addresses each section of the Plant and off-site areas with
respect to the specific remedial requirements of each location.
While a larger number of technology combinations are possible,
this alternative optimizes the use of multiple remedial actions
within one consolidated remedy. .
Plant Site
No Action on all media:
soil) .
Limited Action on groundwater with containment of solids:
Plant Areas A, B, C, E, F, G/H (15,500 cubic yards of solid
waste)
Drainfield (200 cubic yards of
Limited Action on groundwater with sludge excavation (18,400
cubic yards), treatment, and on-site disposal of residuals:
Wastewater Treatment Plant - Stabilization Lagoon (Volume
of treatment residuals would be determined during the
treatability study).
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Limited Action on groundwater with containment of affected
soils (9,700 cubic yards), and sludge excavation (3,800
cubic yards), treatment, and on-site disposal of waste:
Wastewater Treatment .Plant - Inactive Lagoon.
Off-Site Areas
No Action on all media:
of solids).
Limited Action on groundwater and solids:
cubic yards of solids).
Nix and Welb~rn (1200 cubic yards
Crossroads (S,100
Limited Action on groundwater with containment oŁ solids:
Breazeale (S,SOO cubic yards of solids).
No Action on groundwater with containment of solids:
Dodgens (2, 000 c~t :.= yards), and John Trotter (700 cubic
yards of solids).
The technical components of all these elements were discussed in
the DescriPtion section of previously analyzed alternatives.
7.13.2 Effectiveness
In areas where either no action or limited action are proposed,
this alternative would not change the characteristics of the
waste and affected material. Therefore, toxicity, mobility, and
volume of. the material would be reduced only to the degree
provided by natural attenuation. Land use restrictions
instituted as part of limited .action would mitigate the
potential risk posed by direct contact with affected material
left in place.
Where containment is implemented, the short-term effectiveness
would be improved over that provided by excavation. The
affected material would be capped with a relatively small
increase in inhalation exposures by workers and off-site
populations . ~~ -
In Area D a~-~e Plant site, the short-term exposures from
installing a vacuum extraction system would be no greater than
that associated with installation of groundwater monitoring
wells. The long-term effects of vacuum extraction of volatile
organics would be decreases in mobility of waste. constituents
and reduction in the toxicity and volume of those constituents
in the soil pore space.
Excavation, treatment, and on-site disposal of sludge residuals
would cause an increase in the exposure potential of waste
constituents during construction. The long-term effects would
be a decrease in the toxicity and mobility of affected
materials.
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8.0 SUMMARY OF COMPARATIVE ANALYSIS OF ALTERNATIVES
Overall Protection of Human Health and the Environment
Groundwater Alternatives
Alternatives 7, 9, 11 and 12 include extraction and treatment of
contaminated groundwater at the plant site, Dodgena, Breazeale,
and Cross Roads Sites. These alternatives would prevent further
migration of the contaminant plume and would, therefore provide
the best overall protection of human health and the
environment. The remaining sites did not appear to have
contamination at levels above acceptable limits. Institutional
controls (i.e. deed restrictions, ordinances banning shallow
wells, fences, etc.) would provide limited protection, but would
not prevent eventual contamination of surface water and further
contamination of groundwater. The no action alternative would
not provide any protection for human health or the environment.
Source Control Alternatives'
Alternatives 8, 10, 11, and 12 included four technologies for
treatment of contaminated waste and soil were evaluated in the
Feasibility Study. These were incineration, low-temperature
thermal separation, glycolate dechlorination and
solidification. Of these treatments, thermal separation on or
off-site appears to provide the best overall protection of human
health and the environment. Thermal separation uses an indirect
heat source to remove contamination from the soil, thereby
condensing it into a more manageable volume. Incineration would
also provide protection for human health and the environment.
Glycolate dechlorination has not been demonstrated to be
effective in the field and it is uncertain how protective this
treatment would be. Solidification of the materials would be
ineffective due to the presence of oils and other wastes that
would interfere with effective solidification of the materials.
Other alternatives evaluated containment or off-site disposal of
contaminated materials. It is unlikely these would provide
adequate protection of human health and the environment over the
long term. Caps degrade and landfills are subject to
degradation-and/or leachate production that could create new
problems.
ComDliance with ARARs
ARARs for treating or managing PCB-contaminated material derive
primarily from two sets of regulations: the Toxic Substances
Control Act (TSCA) PCB regulations and the Resource Conservation
and Recovery Act (RCRA) land disposal restrictions (LDRs).
Where PCBs affect ground or surface water, the Safe Drinking
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Water Act (SDWA) and Clean Water Act (CWA) provide potential
ARARs for establishing remediation goals; i.e., Maximum
Contaminant Levels (MCLs), Maximum Contaminant Level Goals
(MCLGs), and Water Quality Criteria (WQC). In addition, the PCB
Spill Policy, which is not an ARAR, although it is published in
the Code of Federal Regulations, has been considered in
determining cleanup levels at the site.
The TSCA PCB regulations of importance to Superfund actions are
found in 40 CFR Section 761.60 - 761.79, Subpart D: Storage and
Disposal. They specify treatment, storage, and disposal
requirements for PCBs based on their form and concentration.
TSCA requirements do not apply to PCBs at concentrations less
than 50 ppm; however, PCBs' cannot be diluted to escape TSCA
requirements. Consequently, under TSCA, PCBs that have been
deposited in the environment after the effective date of the
regulation, February 17, 1978, are treated, ~or the purposes of
determining disposal requirements, as if they were at the
concentration of the original material. For example, if PCB
transformers leaked oil containing PCBs at greater than 500 ppm,
the soil contaminated by the oil Would have to be excavated and
disposed of as if all of the PCB-contaminated soil contained
PCBs at greater than 500 ppm. This reflects an interpretation
of the anti-dilution provisions in TSCA (40 CFR 761.1(b». EPA
has clarified that TSCA anti-dilution provisions are only
applicable to CERCLA response actions that occur once a remedial
action is initiated.
The determination of whether contaminated material should be
considered a 'soil or'an rnnustrial sludge will be made site
specifically duri~~ r~edial de~ign c9nsistent with the current
process for classifying ma~rial subject to the land disposal
restrictions as either a pure waste or a soil and debris
contaminated with a waste.
The .requirements for storage of PCBs are.'described in 40 CFR
Section 761.65. The regulations specify that PCBs at
concentrations of 50 ppm or greater must be disposed oŁwithin
one year after being placed in storage. The regulations also
include stru~tural requirements for facilities used for the
storage of PCBs and requirements for containers used to store
PCBs.
PCBs are specifically addressed under RCRA in 40 CPR 268 which
.describes the prohibitions on land disposal of various hazardous
wastes. Note that RCRA regulations only apply to waste that is
considered hazardous under RCRA; i.e., listed in 40 CFR 261.3 or
characteristic as described in 40 CFR 261.2. PCBs alone are not
a RCRA hazardous waste; however, if the PCBs are mixed with a
RCRA hazardous waste, they may be subject to land disposal
restrictions.
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...
PCBs are one of the constituents addressed by the land disposal
restrictions under the California List Wastes. This subsection
of wastes covers liquid hazardous wastes containing PCBs at
concentrations greater than or equal to 50 ppm and non-liquid
hazardous wastes containing total concentrations of Halogena"ted
Organic Compounds (HOCs) at concentrations greater than 1000
ppm. PCBs are included in the list of HOCs provided in the
regulation (Appendix III part 268).
As described in 40 CFR 268.42(a)(1), liquid hazardous (RCRA
listed or characteristic) wastes containing PCBs at
concentrations greater than or equal to 500 ppm must be
incinerated in a facility meeting the requirements of 40 CFR
761.70. Liquid hazardous wastes containing PCBs at
concentrations greater than .or equal to 50 ppm, but less than
500 ppm must be incinerated or burned in a high efficiency
boiler meeting the requirements of 40"CFR 761.60. A method of
treatment equivalent to the required treatment may also be used
under a treatability variance procedure if the alternate
treatment can achieve a level of performance equivalent to that
achieved by the specified method as described in 40 CFR
268.42(b). .
Liquid and non-liquid hazardous wastes containing HOCs in total
concentration greater than or equal to 1000 ppm must be
incinerated in accordance with the requirement of 40 CFR 264
Subpart o. Again, a method of treatment equivalent to the
required treatment, under a treatability variance, may also be
used.
All extracted and treated water would have to meet NPDES
requirements prior to surface water discharge~ A determination
of the location of the discharges, which is expected to be made
during design, is necessary before an identification of whether
the discharges are off-site vs. on-site as defined in the NCP
(40 CFR Part 300.400(e».
Groundwater clean-up goals are established as MCLs, proposed
MCLs (PMCLs) -and Cancer Potency Factors (CPFs) and are presented
in Table 6-6 for the compounds identified in groundwater. As
discussed in Section 9.1, a waiver may eventually be necessary
for the groundwater as it is unlikely MCLs will be met. This is
due to the presence of dense non-aqueaous phase liquids in the
fracture system present at the various sites. All source
treatment alternatives are expected to meet ARARs.
Where excavation is required, the requirements of the Clean Air
Act under 40 CFR Part 50 concerning particulates and volatile
organic emissions will be required to be met.
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-86-
Lona-term effectiveness and Dermanence
Ground water treatment and discharge
Extraction of contaminated groundwater will be effective in
containing the plume over the long-term. It is unlikely that
the source of the plume can be removed in this manner.
Therefore, the extraction is not a permanent remedy, although it
does accomplish the goal of preventing further contamination of
the aquifer.
Source treatment
Thermal separation and incineration provide for removal anq
destruction of the contaminants from the waste and soil. These
are permanent treatment alternatives. Off-site disposal of
wastes provides long-term effectiveness in isolating wastes, but
containment structures may be subject to failure, so that this
alternative is less permanent than a thermal treatment process.
The possible failure of containment structures is applicable to
on-site containment facilities as well. It is unknown as to the
long-term effectiveness and permanence of bioremediation. To
date, no studies achieving clean-up criteria have been reported.
Reduction of mobilitv. toxicity. or volume
Groundwater treatment
Extraction of contaminated groundwater will reduce the volume of
contaminants in the aquifer as well as reduce the mobility of
those contaminants removed through treatment of the extracted
water. The no action alternative or use of institutional
controls will have no impact on the mobility, toxicity, or
volume of contamination present at the site.
Source treatment
Thermal separ~tion removes the contaminants so they can be
destroyed in .A.more condensed, manageable state. Therefore,
thermal se~ation reduces the mobility, toxicity and volume of
the contaminants present in the solids at the site.
Incineration destroys the contaminants, thereby eliminating
toxicity and mobility, and reducing volume. Containment of
wastes reduces the mobility of the contaminants, however,
containment structures may be subject to failure. Glycolate
dechlorination would reduce the toxicity of contaminants.
Solidification would reduce the mobility of the contaminants.
Bioremediation may reduce the toxicity of contaminants over the
long-term. Off-site disposal of wastes does not.affect the
inherent toxicity, mobility, or volume of the waste.
-------
I-
I
-.'1
-87-
Short-term effectiveness
Ground water treatment
Air stripping may have the ,following short-term effects:
risks to workers from exposure to drilling fluids and soil
during the installation of the ground water extraction
wells.
risks to workers and environment from release of
contaminated water because of accidental spillage.
risks to workers, environment and nearby members of the
public from uncontrolled emissions.
The Remedial Design will include all necessary measures to
minimize potential adverse short-term effects on public health
or the environment.
..;.
Institutional controls would be effective in the short term.
They would prevent the public from coming into contact with
contamination or contaminated material in the short term.
Source treatment
All alternatives requiring excavation of contaminated materials
have short-term impacts on the environment due to the release of
volatile contaminants into the air.
Off-site disposal of contaminated soils or off-site incineration
of these wastes involve transportation of the. waste, increasing
short-term risk to populations along the transport route.
Consolidation of materials on the plant site also involves a
short-term risk to populations along the transport route to the
plant site. These risks can be minimized by utilizing an
experienced contractor for these tasks.
ImDlementabilitv
Ground wateE treatment
Air stripping
technologies.
available and
is foreseen.
and carbon adsorption are both proven
Treatment systems and vendors are readily
no impediment to implementation of the alternative
.
-------
-88-
Source treatment
Thermal separation and on-site incineration are fully
Lm9lementable. Off-site disposal of the contaminated soil is
Lmplementable, as is solidification. Excavation and off-site
incineration may be difficult due to availability of incinerator
capacity in South Carolina. Glycolate dechlorination is a
relatively new technology and would, therefore, be difficult to
implement at the site. Construction of a TSCA landfill would
not be possible due to South Carolina Department of Health and
Environmental Control restrictions on permitting such
facilities.
Cost-Effectiveness
Estimated costs for each alternative are as follows:
Alternative
'Millions of Dollars
No Action
Alternative 1
$5.1
Alternatives Involvina Little or no Treatment
Alternative 2
Alternative 3
$5.3
$7.9 - 8.6
Alternative 4
$10.3 - 11.0
$12.7
Alternative 5
Alternative 6
$57.0
Alternatives that Minimize the Need for Lona-term Manaaement
Alternative 8 -, $14.4 - 57
-.
Alternative ,1 a- $27.1
Alternative that Includes Treatment and Reauires Long-term
Manaaement
Alternative 13
$11.2 - 15.1
Alternatives that Minimize the Need for Lona-term Treatment
Alternative 7
$29.4
-------
..
Alternative 11
-89-
$34.5 - 78.4
Alternative 12
$62.4 - 99.2
Alternative that Reauires Lona-term Manaaement
Alternative 9
$39.6 - 50.6
State AcceDtance
The State of South Carolina has concurred with the selected
remedy.
Communitv AcceDtance
-"
Two pUblic meetings were held during the pUblic comment period
at the site. Citizens voiced some concerns over the selected
remedy but appeared to be satisfied by the Agency's responses.
Written comments received during the pUblic comment period were
in the form of requests for " more information. One comment
recommended EPA construct a TSCA landfill at a "safe" site in
the County. The comments were addressed in the responsiveness
summary.
9.0 SELECTED REMEDY
The remedy selected for Operable Unit One of the Sangamo
Weston/Twelve Mile Creek/Lake Hartwell PCB Contamination site
is:
extraction and treatment by air stripping and/or carbon
adsorption of contaminated groundwater at. the Dodgens,
Breazeale, Cross Roads and Plant sites;
discharge of treated water to the nearest viable surface
water body in accordance with applicable regulations;
excavation of materials contaminated with greater than 1 ppm
of PCBs at the Nix and Welborn properties and transport of
the materials to the Sangamo Plant site for staging and
appropriate treatment
excavation of materials contaminated with greater than 10
ppm PCBs on the remaining four private properties (Trotter,
Dodgens, Breazeale and Cross ROads) and transport to the
Sangamo Plant site for staging and appropriate treatment;
backfill two feet of clean fill at each of the private
properties where contaminated materials of greater than Ippm
remain (Trotter, Dodgens, Breazeale and Cross Roads);
-------
-90-
excavate-material containing greater than 25 ppm
concentration of PCBs on the Plant site;
treat all excavated materials to 2 ppm PCBs using thermal
separation technology on the Plant site. During Remedial
Design, a treatability study will be conducted to determine
if any of the contaminated materials will require additional
treatment beyond thermal separation in order to meet the 2
ppm criteria. If necessary, a ROD amendment will be
completed to account for this required treatment; and
replace remediated soil on the Plant site
This remedy will attain a 10-6 cancer risk level as it removes
the source of the direct contact threat and contains the
contaminated groundwater to prevent future contact.
9.1
Description of Recommended Alternative
Groundwater Treatment
The ultimate goal of this remedial action is to restore the
groundwater to its beneficial use, which at this site is a
drinking water aquifer (see Table 6.6 for groundwater clean up
criteria). Based on the information obtained during the
remedial investigation, and the analysis of all remedial
alternatives, EPA believes that it may be possible to achieve
this goal for select areas using the planned remedial measures.
The ability to actieve clean up goal~ at all points throughout
the area of contamination cannot be determined until the
"extraction system has been implemented, modified as necessary
and plume response monitored over time.
If the selected groundwater pump and treat remedy cannot meet
these health based restoration goals, at any or all of the
monitori~g points during implementation, the contingency
measures and goals may replace the selected measures and goals
for these portions of the plume. Such contingency measures
will, at a minimum, contain the plume to within the zone
currently exceeding health-based levels. These containment
measures are still considered to be protective of human health
and the environment, and are technically practicable under the
circumstances.
The selected remedy will include ground water extraction for an
unknown period, during which time the system's performance will
be carefully monitored on a regular basis and adjusted as
warranted by the performance data collected during operation.
Modifications may include any or all of the following:
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'~
-91-
a)
At individual wells where cleanup goals have been
attained, pumping may be discontinued;
alternating pumping at wells to el~inate stagnation
points;
b)
d)
pulse pumping to allow aquifer equilibration and
encourage adsorbed contaminants to partition into
ground water; and
installation of additional extration wells to
facilitate or accelerate cleanup of the contaminant
plume.
c)
To ensure that cleanup goals continue to be maintained, the
aquifer will be monitored at those wells where pumping has
ceased on an occurrence of every one year for a period of five
years following discontinuation of ground water extraction.
...
If, in EPA's judgement, ~plementation of the selected remedy
clearly demonstrates, in corroboration with strong
hydrogeological and chemical evidence, that it will be
technically ~practicable to achieve and maintain remediation
goals throughout the area of attainment, the contingency will be
~plemented.
Where such a contingency situation arises, ground water
extraction and treatment would typically continue as necessary
to achieve mass reduction and remediation goals throughout the
rest of the area of attainment.
Sanaamo Plant Site
Groundwater at the Sangamo Plant site occurs pr~arily within
the joint and fracture system of the bedrock. Groundwater
discharge from wells surrounding the ridge would contain
pr~arily VOCs. This water would be treated by air stripping.
Groundwater downqradient of Areas A~ B, E, and the waste water
treatment fac.ility would be treated by carbon adsorption. In
this area, ai-data showed PCBs in groundwater collected from 10
of 17 wells -- VOCs have been detected in a majority of these
wells. Treated water would be discharged into Town Creek.
Breazeale Site
The assumed pumping scheme for the Breazeale site consists of
groundwater extraction wells screened in the saturated portions
of the saprolite and floodplain deposits.
Extracted groundwater would contain VOCs and would be treated
through air stripping and/or carbon adsorption '(if necessary).
Treated water would be discharged into Wolf Creek.
-------
-92-
Dodaens Site..
The assumed pumping scheme for the Dodgens site consists of
groundwater extraction wells screened in the saturated portions
of the saprolite.
Extracted groundwater is expected to contain VOCs and at least
one semi-volatile organic compound. Collected groundwater would
be treated through air stripping and/or carbon adsorption (if
necessary). Treated water would be discharged to Middle Fork
Twelvemile Creek.
Cross Roads Site
The assumed pumping scheme for the Cross Roads site consists of
groundwater extraction wells screened in the saturated portions
of the saprolite.
Extracted groundwater is. expected to contain VOCs and possibly
other hazardous substance list compounds. Collected groundwater
would be treated through air stripping and/or carbon adsorption
(if necessary). Treated water would be discharged to an unnamed
tributary of Twelvemile Creek.
Source Excavation and Transportation
The first step in this alternative would include excavation of
solid materials affected with greater than 1 ppm PCBs on the Nix
and Welborn private properties, greater than 10 PPm PCBs on the
Trotter, Dodgens, Breazeale and Cross Roads properties and 25
ppm PCBs at the Plant site. Following excavation, the materials
would be temporarily stockpiled .on the Plant site. The material
to be remediated consists of approximately 2,900 cubic yards of'
solid waste and approximately 48,200 cubic yards of contaminated
soil and sediment. The lagoon sediments would be dredged and
dewatered prior to transport to the treatment area. Liquids
produced during dewatering would be temporarily stored in tanks
and then transported for treatment in the leachate treatment
unit at the on-site TSCA landfill. The average haul distance
from on-site.excavation areas would be less than approximately
one-half mil~.' The average haul distance from remote site
excavation areas would be approximately 2.5 miles. Solids
treated to two PPm or less in the thermal desorption unit would
be disposed of on-site. Limited field trials may be required to
confirm treatment effectiveness and to characterize treatment
residuals.
Each of the treatment process options would require
pre-processing of the solids to remove oversized items and to
reduce the particle size. The assumption of a one percent
-------
. ~,.,...
-93-
rejection rate is used because much of the affected areas are
not covered with thick stands of trees. These materials would
require off-site disposal as a TSCA regulated waste in a
permitted landfill.
Excavated areas will be backfilled with native soil, graded, and
restored to support vegetation.
Any potential long-term migration at ground surface by the low
concentrations of waste constituents that remain in place would
be limited by placement of clean backfill.
Source Treatment
"'
Thermal desorption (or thermal separation) is a process option
retained from the screening of thermal treatment technologies.
A proprietary system represented the technology in the
Feasibility Study Report analysis. This Record of Decision
identifies thermal desorption or separation as the preferred
treatment alternative. Exact details of the process, including
treatability studies will be developed as part of the Remedial
Design.
The process envisioned is a mobile process in which soils or
sludges with organic compounds are heated in a rotary kiln.
Volatilized organics are transferred, using nitrogen as the
carrier gas, and cooled to condense organic components. The
condensed components are then collected for further treatment at
an appropriate facility.
This system would consist of the following typical unit
oper~tions:
*
Material preprocessing/sorting
Rotary kiln thermal separation
*
*
Carbon adsorption unit (or combustion afterburner)
Cooling and condensate train
*
*
Off-gas handling trailer
Residuals management unit
On the basis of pilot studies, a treatment capacity of five tons
per hour can be expected. Assuming a typical density of
approximately 1.3 tons per cubic yard of material, the estimated
time expected to complete treatment would be in excess of two
years. This estimate is based on the use of one treatment
system and a minimum of 30 percent downtime.
*
-------
-94-
9.2 Cost
The costs for this alternative, are included in Appendix D of
the Feasibility Study report. The estLmated present-worth cost
is given below:
Ootion 11b. Thermal Separation - $47,900,000 - 63,300,000
The costs in this alternative have a potential to vary from the
estimated costs due to several factors:
o
Unknown hydraulic characteristics of the aquifer.
In-field tests prior to and during the remedial design
are required to fully characterize the site hydrologic
properties.
Unpredictable flow. and constituent removal rates.
o
o
Volume of excavated solids may exceed the landfill
design volume.
10.0
STATUTORY DETERMINATIONS
The selected remedy satisfies the requirements of Section 121 of
CERCLA.
Protection of Human Hec. .~ ~ and the Environment
The selected remedy will ;:'.ermanently treat the' groundwater and
soil and removes or minimizes the potential risks associated
with the wastes. Dermal, ingestion, and inhalation contact with
site contaminants would be eliminated, and risks posed by
continued groundwater contamination would be reduced.
Attainment of ARARs
This alterna~ive will comply with ARARs. A complete discussion
of the ARARs.which are required to be attained is included in
Chapter 8. Chapter 8 also describes those requirements
considered as TBCs (To Be Considered). Groundwater clean-up
criteria are addressed in Chapter 6 (Table 6.6).
Cost-Effectiveness
The groundwater and source remediation technologies are more
cost-effective than the other alternatives considered primarily
because they provide greater benefit for the cost.
-------
-95-
Utilization af Permanent Solutions and Alternative Treatment
Technoloaies or Resource Recoverv Technoloaies to the Maximum
Extent Practicable
The selected remedy represents the maximum extent to which
permanent solutions and treatment can be practicably utilized
for this action. Of the alternatives that are protective of
human health and the environment and comply with ARARs, EPA and
the State have determined that the selected remedy provides the
best balance of trade-offs in terms of long-term effectiveness
and permanence, reduction in toxicity, mobility or volume
achieved through treatment, short-term effectiveness,
implementability, cost and also considering the statutory
preference for treatment as a principal element and also
considering State and community acceptance.
Preference for Treatment as a PrinciDal Element
The preference for treatment is satisfied by the use of the low
temperature thermal treatment system to remove contamination
from soil, sediments and waste at the site and the use of air
stripping/carbon adsorption to .treat contaminated ground water
at the site. The principal threats at the site will be
mitigated by use of these treatment technologies.
-
-------
APPENDIX A
FIGURES
-------
TITLE
FIGURE 1
FIGURE 2
FIGURE 3
FIGURE 4
FIGURE 5
FIGURE 6
FIGURE 7
FIGURE
PICKENS
SANGAMO
BREAZEALE
COUNTY
PLANT
LIST OF
FIGURES
SITE
LOCATION
.MA.P.................. .
SITE.
.......... ...... .... ............
SITE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SITE. . . . .
SITE. . . . .
NIX
DODGENS
CROSS
ROADS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SITE. .
. . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . .
JOHN TROTTER SITE.
................. .... ......... ...
8
- WELBORN
SITE. .
..........
. . . . . . . . . . . . . . . . . . . . . . . . . . .
-------
-,..,.,-
~ure 1
PI CKENS COUNTY SITE
LAND DISPOSAL
- SITE LOCA TlONS
N
SIy.JJ
"""Dr
C'~o
"i ~~
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o
2
3
4
SCALE IN MILES
-, j J I
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. ".. . ~ . '.. .
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FIGURE 2
LOCATION ~ SANGAMO
PLANT SITE
COllTOua "'..L. . .c I....
leALI 1I14,aao
-
.
-------
-
~ ~ ,.
;.~
-
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. .Y<
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FIGURE
3
LOCA TION OF BRE.6lŁ ALE
SITE
CO.TO. I.TDVAL. . -I fI-'
lCALI II 14,000
"'.
-
.
-------
..
..~
--
---
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-
FIGURE. 4
LOCATION OF NIX
SITE
COIlTOUII I18'ftJtVAL . . _TtftS
lCALK I' t4,DGO
-
.
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,-
-
f'-'
~ ~.~'
: J~:
- - O'
t,u:'-\,. ~!
.' v \ I
. V'
" ----
":~
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-, ~ i I
..
FIOURE 5
LOCATION OF THE DOOGENS
SITE
a
.ft"L. 10 'liT/I .ITIM
lCAL& II _,000
-
.
-------
-
-
I J J ,
--
FICUtE 6
LOCA T10N aF CROSS IW'\,&I'\
~S SITE
CO.TO. lIT
IItVAL' . ..
ICALI 1-",- TIlt.
-
.
-------
.--- ---=-~-== - /. ~- -- 4\0 ,,~.( ':- ~'~
: ./ . /:-. ~ ~ ,/ ~, ,;, ~~- ;', - '
' -'.', ~«o~ / 7. -::-.... ...., - ,...-- :....-~ .' "
. ;) "-,../ ""~ ~~ '-" -'. r'~ ~ ' ':-
~.c . \/"~'" I ~ ~ ,~:'" J . ~
~" . ~ I' o~ ~...... ,) / /
X" - .P N ~~~~~~~'''(--E- ~
: J( ~." ..,~> '--"-"'...I "'-'j", ~ -.
,~ , ~-r\ ;:::::::. -----.. ~.'" ../,) ~ -
~~ J~~~ 1---' (, ~~' -'.J"Q:J \ '
z ~ / -:::- /' ---. ---::,.. ) '. ': ..~. '. '; ~. /;'~' ./ ;...'>
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~ Y~_7:-'';-,;..:~, '..:" ,," '\ '\- " i ~
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FIGURE 7
LOCATION OF JOHN TROTTER
SIT!
COIITOU8t r.TIINU.. . KTr8t.
lCALI r I ."'000
-
.
-------
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-
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---- -
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,
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FIGURE
LOCATION OF WELBORN SITE
8
.
..
..~
. .
":'-'
CONTOUR. I8TEIIVAL. . Ml'TDtI
ICALI " MPOO
.;..
-
" ~ ...
-
.
-------
APPENDIX B
TABLES
-------
LIST OF TABLES
TITLE
TABLE 5-1 ANALYTICAL RESULTS - WASTE BREAZEALE
SITE. . . . . . . . . . .
TABLE 5-2
BREAZEALE
TABLE 5-3
BREAZEALE
PCBs ANALYTICAL RESULTS - SURFACE SOIL
SITE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PCBs ANALYTICAL RESULTS - SUBSURFACE SOIL
SITE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TABLE 5-4
ANALYTICAL RESULTS - HSL BREAZEALE SITE.............
TABLE 5-5 ANALYTICAL RESULTS - INORGANIC COMPOUNDS
GROUNDWATER BREAZEALE SITE.....................................
TABLE 5-6
TABLE 5-7
PCB SEDIMENT SAHP;LE RESULTS BREAZEALE PROPERTY......
SURFACE WATER -
BREAZEALE SITE......................
TABLE 5-8
TABLE 5-9
HSL - WASTE NIX
SITE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PCB ANALYTICAL RESULTS - SURFACE SOIL NIX SITE......
TABLE 5-10 PCB SUBSURFACE RESULTS ~ NIX
TABLE 5-11 HSL RESULTS - SUBSURFACE NIX
SITE. . . . . . . . . . . . . . . . . . .
SITE. . . . . . . . . . . . . . . . . . .
TABLE 5-12 GROUNDWATER RESULTS - NIX SITE .....................
TABLE 5-13 PCB RESULTS - SEDIMENT NIX SITE.....................
TABLE 5-14 HSL - WASTE
DODGENS SITE............................
TABLE 5-15 HSL - UPGRADI~NT SURFACE SOIL - DODGENS SITE........
. .
TABLE 5-16 PCB - SURFACE SOIL DODGENS SITE.....................
TABLE 5-17 PCB - SUBSURFACE DODGENS.SITE.......................
TABLE 5-18 HSL - SUBSURFACE DODGENS
SITE. . . . . . . . . . . . . . . . . . . . . . .
TABLE 5-19 BSL - GROUNDWATER DODGENS SITE......................
TABLE 5-20 PCB. - SEDIMENT DODGENS SITE........................
TABLE 5-21 SURFACE WATER RESULTS DODGENS.......................
TABLE 5-22 SOIL BORINGS - CROSS ROAD SITE......................
TABLE 5-23 EXPLORATORY BORINGS - CROSS ROAD SITE...............
TABLE 5-24 WASTE SAMPLE RESULTS CROSS ROADS
SITE. . . . . . . . . . . . . . .
-------
'-2-
TABLE 5-25 HSL SURFACE SOIL CROSS ROADS
SITE. . . . . . . . . . . . . . . . . . .
TABLE 5-26 TOTAL PCBs
TABLE 5-27 TOTAL PCBs
TABLE 5-28 HSL RESULTS
Table 5-29 HSL RESULTS
- SURFACE CROSS ROADS SITE...............
- SUBSURFACE CROSS ROADS SITE............
- SUBSURFACE CROSS ROADS SITE...........
- WASTE JOHN TROTTER SITE...............
TABLE 5-30 HSL RESULTS UPGRADIENT SURFACE SOILS SANGAMO
SITES AREA 1[[[
TABLE 5-31 HSL RANGES - UPGRADIENT SURFACE SOILS SANGAMO
SITES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TABLE 5-32 HSL RESULTS - UPGRADIENT SURFACE SAMPLES JOHN
TROTTER SITE[[[
! -
TABLE 5-33 TOTAL VOCS AND PCBS - SURFACE SAMPLES JOHN
.-
TROTTER SITE[[[
TABLE 5-34 TOTAL PCBS - SUBSURFACE JOHN TROTTER SITE...........
TABLE 5-35 HSL RESULTS - SUBSURFACE JOHN TROTTER SITE..........
TABLE 5-36 GROUNDWATER RESULTS - JOHN TROTTER SITE.............
TABLE 5-37 TOTAL VOCS AND PCBS - STREAM SEDIMENTS JOHN
TROTTER SITE[[[
TABLE 5-38 HSL RESULTS - WASTE SANGAMO SITE -'AREA1...........
TABLE 5-39 HSL RESULTS - UPGRADIENT SURFACE SOILS
S.ANGAMO SITES AREA A. . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . .
TABLE 5-40 TOTAL PCBS - SURFACE SANGAMO SITES AREA A...........
TABLE 5-41 TOTAL PCBS - SUBSURFACE SANGAMO SITES AREA A........
TABLE 5-42 HSL RESULTS - SUBSURFACE SANGAMO SITES AREA A.......
TABLE 5-43 GROUNDWATER RESULTS - SANGAMO SITES AREA A..........
TABLE 5-44 HSL RESULTS - WASTE SANGAMO SITE AREA B.............
TABLE 5-45 HSL RESULTS - UPGRADIENT SURFACE SOILS
-------
-3-
TABLE 5-47 TOTAL PCBS - SUBSURFACE SANGAMO SITES AREA B........
TABLE 5-48 HSL RESULTS'- SUBSURFACE SANGAMO SITES AREA B.......
TABLE 5-49 GROUNDWATER RESULTS - SANGAMO SITES AREA B..........
TABLE 5-50 HSL RESULTS - WASTE SANGAMO SITE
AREA C.............
TABLE 5-51 HSL RESULTS - UPGRADIENT SURFACE SANGAMO AREA C. . . . .
TABLE 5-52 TOTAL PCBS - SURFACE SANGAMO SITE AREA C............
TABLE 5-53 TOTAL PCBS - SUBSURFACE SANGAMO SITE AREA C.........
TABLE 5-54 HSL RESULTS - SUBSURFACE SANGAMO SITE AREA C........
TABLE 5-55 GROUNDWATER RESULTS - SANGAMO SITES AREAS C,
D, F, G, .AND H.................................................
TABLE 5-56 HSL RESULTS - WASTE SANGAMO SITE AREA D.............
TABLE 5-57 HSL RESULTS - UPGRADIENT SURFACE SANGAMO SITE
AREA D[[[
TABLE 5-58 TOTAL VOCS AND PCBS - SURFACE SANGAMO SITE AREA D...
TABLE 5-59 TOTAL PCBS - SUBSURFACE SANGAMO SITE AREA D.........
TABLE 5-60 HSL RESULTS - SUBSYRPACE SANGAMO SITE AREA D........
TABLE '5-61 TOTAL PCBS - SUBSURFACE SANGAMO SITE AREA E.........
TABLE 5-62 GROUNDWATER - SANGAMO WW TREATMENT AREA E...... . . . . .
TABLE 5-63 HSL RESULTS - WASTE SANGAMO SITE AREA P.............
TABLE 5-64 HSL RESULTS - UPGRADIENT SURFACE SANGAMO SITE
.AREA P[[[
TABLE 5-65 TOTAL PCBS - SURFACE SANGAMO SITE AREA P............
TABLE 5-66 TOTAL PCBS - SUBSURFACE SANGAMO SITE AREA P.........
TABLE 5-67 HSL RESULTS - SUBSURFACE SANGAMO SITE AREA P........
TABLE 5-68 HSL RESULTS - UPGRADIENT SURFACE SANGAMO SITE
AREA G. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
-------
-4-
~
; ~
TABLE 5-71 HSL RESULTS - SUBSURFACE SANGAMO SITE AREA G.......
TABLE 5-72 HSL'RESULTS - WASTE SANGAMO SITE AREA H............
TABLE 5-73 HSL RESULTS - UPGRADIENT SURFACE SANGAMO SITE
AREA H. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TABLE 5-74 TOTAL PCBS - SURFACE SANGAMO SITE AREA H...........
TABLE 5-75 TOTAL PCBS - SUBSURFACE SANGAMO SITE AREA H........
TABLE 5-76 HSL RESULTS - SUBSURFACE SANGAMO SITE AREA H.......
TABLE 5-77 TOTAL PCBS - SUBSURFACE SEPTIC DRAIN FIELDS........
TABLE 5-78 HSL RESULTS - SUBSURFACE SEPTIC DRAIN FIELDS.......
TABLE 5-79 HSL RESULTS
- WASTE SANGAMO WWTP...................
TABLE 5-80 TOTAL PCBS - SUBSURFACE SANGAMO WWTP...............
TABLE 5-81 HSL RESULTS - SUBSURFACE SANGAMO WWTP..............
TABLE 5-82 TOTAL PCBS
- LAGOON SEDIMENTS......................
TABLE 5-83 TOTAL PCBS
SEDIMENTS SANGAMO WWTP................
TABLE 6'-1
CONSTITUENTS
OF CONCERN'............................
TABLE 6-2
TABLE 6-3
CONCENTRATION RANGES OF CONTAMINANTS...............
CONSTITUENT FATE AND
TRANSPORT. . . . . . . . . . . . . . . . . . . . .
TABLE 6-4
TABLE 7-1
SUMJofARY OF BASELINE RISK....."....................
ESTIMATED VOLUMES OF AFFECTED MATERIALS...........
-------
'TABLE 5-1
SUMMARY Of PAAAMEJERS OEJECJED IN ~ASJE .
BREAZEALE SI IE
PARAHEJEAS (1)
SAMPLE LOCAJ 1011
PCBs (2)
Surface II..te
Aroclor 1248 I Aroclor 1254 I Jotat PCBs
II-I
0.43 1.5 1.93
. 3.2 l 3.2
10 7Z 82,
. 890 890
1400 3.6 1403.6
170 160 3]0
. 1500 1500
. 1400 1400
. 1600 1600
. 1800 1800
240 1300 1540
220 1100 1320
110 660 no
. 1500 '1500
150 820 970
130 860 990
1000 22 1022
11'1
11-2
11-3
11-4
11-4
11-5
~
I 11-5
~
0\
11-5 D~t lute
11-5 Ik.t»llcate
11-6
11.7
11-8
11-8
11.9
11-9
11-10
(1) - rOl.. ,-ntratlon in paru per ..ill ion (dry weight)
12) - AI .. ".,.. lilted are the only Aroclora detected.
110 . 1101 detected.
MEJALS
Arsenic I C"hlll Chr~hlll Copper I~I Nicket
I
I~I
VOlAlIlE OIIGANIC COV'OUNOS
frichloro- Jetra'
ethene I chtoroethene
-------
i _u
I
..
TABLE 5-] (coot inued)
SUMMARy Of PARAMETERS DETECTED IN WASTE -
BREAZEALE SI JE
SNlPLE LOCATlCIII
PARAMETERS (1J
PCI. (2)
Aroetor 1248 , Aroetor 1254 , Tot.t PCI.
METALS
I VOLAflLE QlGAIIIC CDtPa.INOs
Jrichloro- Tetr.-
I~I Nickel I~ ethene I ehloroethene
Ar.enle , Cllillu. , Chr08iu. I Copper
S*urflC:. We.t.
"-2 (0.0. 3.0)
"-2 (0.0 - 3.0)
O"f)t lelt.
"-4 (1.0 - 4.0)
"-4 (5.5 - 7.0)
....
I
......
VI
",5 (2.5. 5.5)
"-6 (4.0 - 5.5)
"'7 (4.0. 5.5)
"-8 (2.5. 5.5)
"-9 (5.5. 7.0)
"-10 (2.5 - 4.0)
"-11 (0.0 -12.0),
"-12 (0.0 - 3.5),
"-13 (0.0 - 12.0)
"-11 (0.0 -12.0), (3)
"-12 (0.0 - 3.5),
"-13 (0.0 - 12.0)
15 48 63
20 10 30
6.2 NO 6.2
NO NO NO
8.7 54 62.7
3.0 7.7 10.7
120 890 1010
16 18 34
1.9 1.8 3.7
14 82 96
45 460 505 9.6 1.5 25.2 96.9 112 8.9 184 0.0039 0.0058
0.0011 0.0011
(1) - Concentr.tlon In partl per .'Ilion (dry weight).
(2) - .roctor. tilted Ire the only Aroclorl detected.
(3) - EP Toxicity Teat extrlC:t lnllyal..
NO - Not detected. .
I .
-------
TABLE ~5- 2
PCB CONCENTRA11ONS DETECTED IN SURFACE SOILS. BREAZEALE SITE
S~le
N~r
BRSS-1
Bass-2
BasS-3
BRSS-4
BasS-5
BRSS-6
BRSS-7
BasS.S
BRSS-9
BRSS-10
BasS- "
BRSS-11 Duplicate
BRSS-12
BRSS.13
IISS.14
BRSS.15
BRSS.16
BRSS-16 Duplicate
BRSS- 1 7
BasS-18
BRSS.19
BRSS-20
8RSS.21
IISS.22
USS-23
8RSS.24
11$$.25
11$$-26
"$$-27
11$$-28
11$$-29
11$$.29 Duplicate
11$$-]0
"$$.31
"$$.32
11$$-3]
USS.]4
"SS-35
IISS.36
IRSS.37
"$$.]8
U$$.39
11$$.40
11$$.41
"SS.42
11$$.4]
IISS.(,4
11$$.45
11$1.46
PCB Concentration-
Aroclor 121,8 Aroclor 1251,
NO 1.1
0.99 5.3
ND 0.27
0.71, 1.9
NO NO
0.58 1.:'
NO ND
0.1,9 1.4
ND 8.5
0.30 0.55
22.0 100.0
23.0 110.0
NO NO
58.0 160.0
NO 0.27
14.0 62.0
0.10 0.33
0.09 0.32
280.0 8000.0
0.25 15.0
220.0 480.0
1.5 23.0
520.0 880.0
56.0 100.0
0.21 0.11
2.5 5.2
2.1 1.4
lID III
0.82 21.0
0.60 2.2
1.2 11.0
2.3 9.1
1'.0 68.0
260.0 240.0
lID 6.8
11.0 60.0
18.0 35.0
18.0 35.0
43:0 81.0
1.1 1.5
11.0 42.0
III 4.9
liD 1.8 .
lID 1.3
lID III
lID 120.0
lID III
III 54.0
lID 11.0
Aroclor 1260
NO
NO
NO
ND
ND
140
ND
ND
ND
NO
ND
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
lID
lID
NO
lID
lID
lID
lID
0.56
lID
1.7
5.0
lID
lID
lID
lID
lID
lID
lID
lID
lID
lID
lID
lID
lID
lID
lID
lID
III . lot Detected
. Conc8ntr8ttciN in parts par .Illion (dry ..eight)
Aroclors l tsted a... the only Aroclors detected.
4-18
Toul PCB
1.1
6.29
0.27
2.64
NO
2.28
NO
1.89
8.5
0.85
122.0
133.0
NO
218.0
0.21
76.0
0.43
0.41
8280.0
15.25
100.0
24.5
1400.0
156.0
1.04
1.1
4.1
lID
21.82
3.36
12.2
13.1
84.0
500.0
6.8
11.0
53.0
53.0
124.0
9.2
59.0
4.9
1.8
1.3
lID
120.0
lID
54.0
11.0
-------
i
TABLE hi
PCB CONCENTRATIONS DETECTED IN SUBSURFACE SOILS
BREAZEALE SITE
Sample Identification PCB Concentration(2)
(Borin2 No. & SamDle Interval Aroc1or 1248 Ardor 1254 Total PCBs
101-1 (1.0-4.0) ND ND ND
101-2 (4.0-5.5) 0.3 0.51 63.0
101-3 (5.5-8.5) ND 0.20 0.20
101-4 (5.5-7.0) ND ND ND
W-5 (7.0-8.5) ND ND ND
W-6 (10.0-11.5) ND 0.27 0.27
W-7 (7.0-8.5) ND 3.4 3.4
W-8 (7.0-8.5) 0.64 1.7 2.34
W-9 (10.0-11.5) 14.0 51.0 65.0
101-10 (11.5-13.0) ND 1.1 1.1
W-11 (12.0-22.5),
101-12 (3.5-20.0), 0.44 0.92 1. 36
W-13 (12.0-18.0) ND[l] ND[l] ND[l)
W-14 (6.0-17.0) ND ND ND
BRSB-15 (2.5-3.0) ND 2.6 2.6
BRSB-15 (4.0-4.5) ND ND ND
BRSB-16B (2.5-3.0) ND 2.7 2.7
BRSB-16B (3.5-4.0) ND 0.15 0.15
~ BRSB-17A (3.0-3.5) ND 0.10 0.10
BRSB-17A (4.5-5~0) ND 0.11 0.11
BRSB-18A (2.5-4.0) ND 0.076 0.076
BRSB-18A (4.0-4.5) ND ND ND
BRSB-19A (2.0-2.5) ND ND ND
BRSB-19A (3.5-4.0) NO NO ND
BRSB-20 (1.0-1.5) NO 0.18 0.18
BRSB-20 (2.5-3.0) NO ND ND
BRSB-21 (1.0-2.0) - ND 5.9 ND
BRSB-21 (3.0-4.0) NO ND ND
BRSB-22 (3.0-4.0) ND 0.037 0.037
BR~B-22 (6.0-7.0) ND ND ND
BRSB-22 (6.0-7.0) Duplicate ND ND ND
BRSB-23 (4.0-5.0) NO ND ND
BRSB-23 (7.0-8.0) NO ND ND
BRSB-23 (10.0-12.0) ND ND ND
BRSB-23 (10.0-12.0) ~licate ND ND ND
BRSB-24 (2.0-3.0) 11.0 28.0 39.0
BRSB-24 (4.0-5.0) ND 0.41 0.41
BRSB-24 (4.0-5.0) ~licate 0.55 1.20 1. 75
,BRSB-25 (4.0-5.0) ND 0.054 0.054
BRSB-25 (7.0-8.0) ND ND ND
BRSB-26 (4.0-5.0) 1.2 3.1 4.3
BRSB-26 (7.5-8.5) NO ND ND
BRSB-26 (11.0-12.0) NO NO ND
[1] EP toxicity test extract analysis
(2) Concentrat1ona in parts per million (dry weight)
Aroclors listed are the only Aroclors detected
ND Not detected '
4-19
-------
. TABLE ~-4
SUMMARY Of PARAMETERS DETECTED IN PRIORITY POlLUTANT
OR HSL ANALYSIS Of SUBSURfACE SOILS -
BREAZEALE SITE
S-.ple NuBber and Intervil
PARAMETER (1J
V-11 (12.D - 22.5)
V-12 (3.5 - 20.0)
V-13 (12.0 - 18.0)
CaIpoIltiGnlI EP Toxicity
V-14
(0.0 - 11.0)
BRSB-23
00.0 - 12.0)
BRSB-23
00.0 - 12.0) DL
BRSB-23
(10.0 - 12.0)
Dupl icate
BRSB'23
00.0 - 12.0)
Dupt iClte DL
PCBs (2]
Aroetor 1248
0.44
0.92
NO
NO
NO
110
Aroetor 1254
NO
NO
NO
liD
Totat PCI.
1.36
NO
NO
NO
NO
Votatlte Greenlc CG8pOUnda
Mathytana Chtorldl
~
I
N
o
Tetrachloroethytene
.
0.0029
.
NO
0.020 D
0.021 D
NO
NO
NO
NO
S.I . Vol it It e CCIIIIpCU1da
Di-.-Iutyl Phthatate
1.0
2.3 B
NO
NO
I nor,.., I CI
Ahal,..
38,700 35,1,00
9.6 4.6 39 1,1
35 ]6
. NO NO 1.1,
163 159
25.8 31.4 16 16
Arlanie
larha
Cedlha
Calelua
Chr.iua
11] - Concentration in parts per .ittion (dry weight).
121 - Aroetorl tilted are the only Aroetors detected.
B . Indlcltes thlt paraaeter was Iiso detected in associated blank.
D - Ditute s-.ple.
NO - lIot detected.
._.
-------
1';-.3 t! '-'
.. -
St~-~y 0: ~E:''';'L CJMPOUNDS DE:"EC:'ED :~ c;act::m ". --~
"'1'\..':'...",
BREAZEAU SZTE
SR..~ - 3 SR."!''; - 5 SR."!''; - 5 BEt. 'fW - 11 BR."!1of - 1:'
Inorganics(l} 8-19-86 9-14-88 9-14-88 9-14-88 9.14-88
Fil:e!'~d FL: :e':e~
A:um::'!UlU 22.60 ND 4.83 ~O
Ba=:,'~,..n 0.07 ND ND NO
Cc1c=:iu.':! 0.00023 NO ND ND NO
Copper ND 0.015 ND 0.020 ~O
Iron c.50 ND 4.40 ~D
Lead. NO NO ND 0.0052 NO
Magnesium 0.77 0.70 0.19 0.10
Manganese 0.286 0.093 0.363 0.360
Nickel 0.03 ND ND ND ND
Potassium 2.03 1.53 1.45 0.760
Sodium 7.00 5.63 NO ND
Zi:'!c NO 0.071 0.02: 0.046 0.0:3
, -I
C~nce~t=~:~~~3 are l~ ?~=:3
pa= :1:"__':'O~.
NO - Not Dececced
V.BLE 5-0.'
PCB CONCE~TRA:IONS IN STREAM SEDIM~~TS
BREAZEALE S I!E
Samtlle Number
PCB Concentration
Aroclor 1254 r11 Total P~3s
BRSO-l
BRSO-2
BRSO-3
B'RSO-4
BRSO-5
0.32
1.8
ND
NO
ND
0.32
1.8
NO
NO
ND
NO - Not detected
Concencration5 are in Pares Per Million (d~f ~eight)
[1] Aroclor 1254 is the only Aroclor detected.
PCBs were detected in samples BRSO-l and 2 at total concentrations
of 0.32 ppm and 1.8 ppm, respectively. No PCBs were detected i~
sediment samples collected from Wolf Creek.
Several surface water samples have been collected from the
drainage ditch and Wolf Creek at the same locations as scream sediment
samples. A summary of detected parameters is presented in Table 4-:'3.
4.54
-------
TABLE 5.... J
SUMMARY Of PARAMETERS DETECTED 'M SURfACE WATERS -
BREAZEALE SITE
llel I end SIIIIIpI ing Date
8RS"-1 BR5"-2 BR511-3
PARAME TER (1)
7/./16 11/11/16 3/5/87 1/30116 11/11/16 3/5/87 1/30/16 11111/86 315187 8/25/88 8/25188 9/12/88 9116188
Dupl iute
field p.r_ter.
pi! (I.u.) 5.7 5.3 5.2 5.8 5.8 5.6 6.7 6.0 6.2 6.3 6.3 6.2 6.0
Splclfle ~tlnCe 30.0 23.6 25.0 23.6 45.0 36.0 57.6 57.6 70.0 ' 40.0
(UIIh08/C8 8 25 C)
PCI. lID lID lID lID 110
Vol.tlle Orgenle C08pOUndI
1,1,t-IrlchiorOlth8nl lID lID lID 81) 81) II) l1li 110 lID
~ lenz... 81) 81) 81) 81) lID 81) 110 110 110
I
VI t,2-0lchiorOithyl8nl (tot.I) 81) 81) 81) 81) 81) 81) liD 110 81)
VI
IrlchlorOlth8nl 81) 81) 81) 81) 81) 110 110 lID 110
lolUlni 81) 81) 81) 81) 81) 0.001 8 lID II) 110
C.rbon DllUtflde 0.005 0.006 B 110
Methyl... Chloride 0.024 B 0.012 B 110
lot.1 VOC. IZJ 81) 81) 81) 81) 81) 0.001 lID 110 110
Other
TOC 110 110 3.3
TOtI 110 II) lID
111 . Concentrltion in peru per ..\1 ion.
121 . Tot II VOC. detected do not include 8ethylene chloride or carbon disulfide.
lID . lIot detected.
B - Indiutu per_ter ..... also detected in associlted blank.
-------
..
TABLE 5-1 (cont inued)
~y Of PARAMETERS DETECTED 1M SURfACE ~TERS -
BREAZEALE SITE
Wet t 8nd S..t 1118 Date
BRSU-4 BRSII-5
PARAMETER (1J
7/JO/M 11/11/81. 3/5/87 8/24/88 1IJO/M 11111181. 8/24/88 9112188 9116188
fletd Par_terl
pi (I.U.) 6.7 6.2 6.2 6.4 6.5 6.0 6.4 6.4 5.8
IpIc:lflc Concb:tance 48.3 34.4 l 55.2 49.0 34.8 10.0 62.4 39.2
(Ulllloe/C8 8 25 C)
. MO 810 110
PClI
Votatlte Organic C08pOUnda
""1'Trlchtoroethene MO . MO 0.006 NO NO
lenz- MO 0.002 MO NO NO NO
~
I 1,2-0Ichtoroethyt- (totet) MO 0.001 MO MO NO NO
VI
0'1
Trichloroethane NO 0.002 MO NO 810 110
Tot~ . 0.002 I . MO NO NO
Carbon Olautflde 0.005 0.005 B NO
Methyt- Clltorlde 0.027 B 0.017 I NO
Totat wel [21 . 0.007 MO 0.006 NO NO
Other
TDC 3.4
TOIl 0.011
111 - Concentration in partl per .Illion.
121 . Total vue. detected do not Inctude Mthylene chloride or carbon disulfide.
NO . .ot detected.
I - Indicate. par_ter .... al.o detected in a..oclated blank.
-------
Resul ts
of Remedial Investigation
Pickens County Site
11-8-1989
Revision I
TABLE 5-8
SUMMARY OF PARAMETERS DETECTED
IN YASTE - NIX SITE
Sample Number
Parameter(l)
Inor,anic
Aluminum
Arsenic
Barium
Cadmium
. Calcium
Chromium
Cobalt
Copper
Iron
Lead
Magnesium
Manganese
Nickel
Potassium
Vanadium
Zinc
Cyanide
COlD'Dounds
NXSS-22 NXSS-22-DL NXSB-4 (0.7-0.8)
0.008B ND O.008B
13 ND NA
51,300 NA NA
52 .NA NA
59 NA NA
6.3 NA NA
778 NA NA
18 NA NA
6.3 NA NA
60 NA NA
62,700 NA NA
73 NA NA
687 NA NA
415 NA NA
78 NA NA
1,260 NA .NA
78 NA NA
258 NA NA
1.5 NA NA
Volatile OrRanics
Methylene Chloride
~(2)
Aroclor 1254
(1) Concentration In parts per .11110n (dry weight)
(2) Aroclors listed are the only Aroclors detected
ND - None Detected
NA - Not Analyze.
5-12
-------
.
TABLE 5-9
PCB(l) CONCENTRATIONS DETECTED
IN SURFACE SOILS - NIX SITE
Sample ~o.
PCB Concentration
Aroclor 1248 Aroclor 1254
..
NXSS-l
NXSS-2
NXSS-3
NXSS-4
NXSS-S
NXSS-6
NXSS-7
NXSS.8'
NXSS-9
NXSS.10
NXSS -11
NXSS-12
NXSS-13 .
NXSS-14
NXSS-15
NXSS-16
NXSS-16 Duplicate
NXSS-17
NXSS-18
NXSS-19
NXSS-20
NXSS-21
NXSS-22
0.36
0.13
ND
2.5
NO
0.41
16.
0.65
5.5
NO
2.8
0.26
47.
15.
6.6
15.
15.
0.51
NO
NO
NO
0.24
13.
0.32
ND
ND
1.1
NO
0.75
24.
0.538
. 4.1
NO
0.75
ND
19.
13.
NO .
7.8
8.1
NO
NO
NO
NO
NO
NO
ND
(1)
None detected.
ConcentratioM are in parts per .UUon (dry weight)".
Aroclors listed ar~ the only Aroclors detected.
5-13
f
Total PCBs
0.68
0.13
NO
3.6
NO
1.16
40.
1.168
9.6
NO
3.55
0.26
66.
28.
6.6
22.8
23.
0.51
NO
NO
NO
0.24
13.
-------
TABLE 5-10
PCB CONCENTRATIONS DETECTED IN
SUBSURFACE SOILS - NIX SITE
Sample Identification
(B0rinE ~o. & SamDlp. Interval)
PCB Concentration (1)
Aroc1or ~248 Aroc1or 1254
NXS B-1 (3. 5 - 5 . 0)
NXSB-2 (3.5-5.0)
NXSB-3 (4.0-6.0)
NXSB-3A (4.0-6.0)
NXSB-3B (2.5-4.0)
NXSB-3B (5.0-6.5)
NXSB-4 (2.0-4.0)
NXSB-4 (4.0-4.8)
NXSB-4,4A.4B
NXSB-5 (3.5-5.0)
NXSB-5 (3.5-5.0)
Duplicate
NO
NO
NO
NO
NO
NO
NO
NA
NO
NO
NO
ND - None Detected
NA - Not Analyzed
(1) Concentrations are 1n parts per million (dry weight).
Aroclors listed are the only Aroclors detected.
5-15
ND
ND
0.06
ND
ND
ND
0.4
NA
ND
ND
ND
T,:,tal PCBs
ND
ND
0.06
ND
ND
ND
0.4
NA
NO
ND
ND
-------
f
TABLE ~tl
SUMMARy OF PARAMETERS DETECTED IN
HSL ANALYSIS OF SUBSURFACE SOILS - NIX SITE
Parameter(l) NXSB-4 (4.0-4.8) NXSB-4.4A.4B
Volatile Or~anics
Methylene Chloride 0.007B O. 011B
Acetone ND 0.022B
Styrene ND 0.009
Semi - Vo latiles
bis(2Ethylhexyhl)
Phthalate NA 1.900
PCBs(2)
Aroclor 1248 NA ND
Aroclor 1254 NA ND
Metals
Aluminum NA 79,400
.. Arsenic NA 71
. Barium NA 37
Calcium NA ~O
Chromium NA 17
Copper NA 14
Iron NA 33,700
Lead NA 20
Magnesium NA 500
Manganese NA 100
Nickel NA 45
Potassium NA 1,140
Vanadium NA .57
Zinc NA 47
B Detected in blank
NA Not Analyzed
NO None Detected
. (1) Concentration in parts per million (dry weight)
(2). Aroclors listed are the only Aroclors detected
5-16
-------
..
PARMEIER (1)
TABLE 5&..12
SUMMARY Of PARAMETERS DEIECTED 1M GROUND YATER
SEPTEMBER AND DECEMBER 1988 - NIII SITE
Wel I end S~I iog Date
8U''''- 1 MIIJII.Z MII"'- 3 NII"'-4
"1.". 12/6188 12/6/88 918.9/88 12/6188 9/8.9/88 9/8-9/88 12/6188 918-9/88 9/8.9188 1216188
Dupl icate filtered Oupl iute
5.5 5.4 5.4 5.7 5.0 5.5 4.9 5.5 5.5 12
23 37 37 23 37 22 37 2850 2850 2074
lID lID 110 lID lID NO NO NO NO NO
field Par_terl
pH (I.U.)
Spac:lflc CancKtenc:e
(Ulhos/ca I 25 C)
PClI
Volatile Organici
'01-
0.014 I 0.017 I 0.021 B 0.071 B 0.019 B
0.043 I 0.020 . 0.023 B 0.063 B NO
110 lID NO 0.013 B NO
lID lID lID 0.006 B NO
lID III 110 0.007 B NO
Methylene Chloride
Acetone
U1
I
~
......
Carbon Oilulflde
lenzene
S_I - Volt tile CCIIIIIpOUnds
I norgenl CI
Ahal...
Calcha
69.100 0.220
0.260 0.060
1.220 0.780
0.011, NO
Ilr"a
Copper
111 . (onc~ntrallon In parts per million.
8 . Indicat~s par88et~r was det~cted in associated blank.
NO Not det~c ted.
-------
.'
TABLE ~ 1 acont inued)
SUMMARY OF PARAMETERS DETECTED IN GROUND WATER
SEPTEMBER AND DECEMBER 1988 - NIX SITE
well rod S8IIIp1 ing Date
1""-1 1""-2 NIIMW-3 NIIMW-4
PARAMETER (1J
9/8-9/88 12/6188 12/6/88 9/8-9/88 12/6/88 9/8-9/88 9/8-9/88 12/6/88 918-9188 918-9/88 1216188
Dupl ieate Filtered Duplicate
Inorganic. (cont ifU!d) ,.
Iron 28.100 NO
leed 0.021 NO
MII8I1H h. 2.810 0.480
Mengene.. 0.228 NO
Pota.. h. 8.610 2.360
VI Zinc 0.162 0.012
I
.....
CD
Other
Total Alk.llnlty (a. C8C03) 7.8 8.6 9.0 9.9 6.8 6.2 5.1, 630 61,0 390
Chloride 2.8 3.0 1.3 1.3 2.3 3.6 2.4 6.4 4.5 5.1,
Hardne.. (.. C8C03) 20 29 30 45 57 33 79 110 140
SUlpended Solidi 550 1100 510 4570 2410 1300 430 713 1,6S0 630
Sui fate 43 6.9 < 1 32 7.9 260 170 170
11) - Concentration In parts per .iliion.
. - Indicate. par_ter .... detected in associated blenk.
II) - lot detected.
-------
TABLE 5-13
PCB CONCENTRATIONS(l) DETECTED IN
STREAM SEDIMENTS - NIX SITE
Sam'Dle Nwnber Aroclor 1248 Aroc1or 1254 Total PCBs
NXSD-l NO NO
NXSD-2 1.8 2.1 3.9
NXSO-3 1. 0.74 1. 74
NXSO-4 1.3 0.32 1. 62
NXSO-5 0.73 0.2 0.93
NXSO-6 ND 1.3 1.3
NXSO-7 1.3 0.26 1. 56
NXSO-7 Duplicate 0.95 0.24 1.19
NXSO-8 0.79 NO 0.79
NXSO-9 NO 0.65 0.65
NXSO-10 ND ND NO
NXSO-ll NO NO NO
NXSD-12 ND NO NO
(1) Concentrations are in ppm dry weight.
Aroclors are the only Aroclors detected.
NO - None Detected
5-20
-------
TABLE S~14
SUMMARY OF PARAMETERS DETECTED IN HSL ANALYSIS OF WASTE
. DODGENS SITE-
I S~le
PARAMETER [1] I OGSB-' OGSB-3C OGSB-6 OGSB-1.3C.6 OGSB-'.3C.60L OGSB-I,C CeSB-I,C
I (0.5-2.0) (0_5-2.0) OL
I
I
Volatile Organics I
I
Methylene Chloride I 0.014 B 0.020 0.043 B 0 - 12 0
Acetone I 0.023 0.032 0.036 NO
I
Semi'Yolatile Organics I
Napthalene I 5.1 D NO
Acenepthene I 4.2 D NO
I
Fluorene I 5.2 0 NO
Phenanthrene I 32.0 D NO
I
Anthracene I 11.0 0 NO
Fluoranthene I 40.0 0 NO
I Phrene I 31.0 0 NO
.-
~ 8enzo(l)anthrlcene I 24.0 0 NO
Chrysene I 23.0 0 NO
8enzo(b)fluoranthene I 36.0 0 NO
Benzo(a)pyrene I 20.0 0 NO
Indeno(1.2,3'cd)pyrene I 11.0 0 NO
Oibenz(I,h)anthrlcene I 5.10 NO
Benzo(g,h,i)perylene I 11.0 0 NO
Totll Semi'Yolltiles I 259.2 0 NO
Pesticide Organics I
g8111118'BHC (Lindane) lID lID NO
pcal [21
Aroc:lor 1248 470 600 15 20 0
Aroclor 1254 lID lID 15 19 0
Totll pcal 470 600 30 39 0
[1]- ConC8ntrltian in partl per .U lion (dry wight).
[2] - Aroclorl lilted are the only Aroclors detected.
III) - Not detected.
O,OL - Diluted ialple.
6-15
-------
PARAMETER (1]
TASLES-l/(c:ontinued>
SUMMARY OF PARAMETERS DETECTED IN HSL ANALYSIS OF WASTE
DODGENS SITE
I
J Sa/I'C)le
I
I DGSS.' DGSS-3C DGSS'6 DGSS-1,3C,6 DGSS.1,3C,6 DL DGSS.i,C OGSS-i.C
I (0.5-2.0) (0.5-2.0) OL
I
I
I
I 71,600 65,400
I 32 85
I 110 206
I 1.1 ND
I 2.7 11
I 364 1930
I 26 70
I 14 8.7
I 542 10,700
I 64,200 39,600
I 84 737
I 1180 865
I 733 590
I NO 0.56
I 23 32
I 1050 920
I 2.9 101
I 620 lID
I 205 54
177 4500
NO 11.6
Inorgan;c:s
Al\lll;nua
Arsenic:
SIr i \III .
Seryll i \III
CaQlli\lll
Calc:i\lll
Chromiun
CoOelt
Copper
Iron
Lead
Megnesl""
Mangenese
Merc:ury
Nic:kel
Potassiun
Silver
Sodi""
VeNdi un
Zinc
Cyenide
[1] . Concentretion In perts per .illion (dry ~ight>.
[2] . Aroclors listed sr. the only Aroclors detected.
NO : Not detected. .
D,DL . Diluted s-.pl..
6-16
-------
TABLE 5-15
SUMMARY OF PARAMETERS DETECTED IN HSL ANALYSIS
OF UPGRADIANT SURFACE SOILS
DOOGENS SITE
S...,l e
PARAMETER [1] DGSS.1 DGSS-1 RE DGSS-1 DL OeSS-1 OeSS.1 OL
Oupl icate Oupl icate
Vola(ile organics
Methylene Chloride 0.028 B 0.015 B NA 0.014 B
Acetone NO NO NA NO
Semi-Volatile Organics
Napthalene NO NO
Acenapthene NO NO
Fluorene NO NO
Phenanthrene NO NO
Anthracene NO NO
Fluoranthene NO NO
Phrene NO NO
Benzo(a)anthracene lID NO
Ch rysene lID NO
Benzo(b)fluoranthene lID NO
Benzo(a)pyr- I NO NO
Indeno(1,2,3-cd)pyrene I lID NO
Dibenz(a,h)anthracene NO NO
Benzo(g,h,i)perylene lID NO
Total S..i'Volatil.. lID NO
Pesticide Organics
gamma.SHC (Ltnd8na) lID 0.023
PCBs [2]
Aroelor 1Z48 lID 0.99
Aroelor 1254 0.83 NO
Total peal 0.83 0.99
(1] .
(2] .
O,DL .
lID. .
RE .
Concentration in peru per .HlIon (dry ...i;ht).
Aroelora liatlCl are the only Aroelors detectlCl.
ot lutlCl I81Ple.
Not detectlCl.
Repeat analysis.
6-17
-------
. TABLES-l5
-------
Table 5-16
PCB CONCENTRATIONS DETECTED IN
SURFACE SOILS - DODGENS SITE
PCB Concentration1
SamD1e Number Aroc1or 1248 Aroc1or 1254 Total PCBs
DGSS-1 ND 0.83 0.83
DGSS-1 Duplicate ND 0.99 0.99
DGSS -.2 0.98 0.63 1. 61
DGSS-3 3.3 1.8 5.1
DGSS-4 ND 2.6 2.6
DGSS-5 13.0 39.0 52.0
DGSS-6 18.0 20.0 38.0
DGSS-7 3.6 3.2 6.8
ooSS-S ND 0.2 0.2
DGSS-9 ND 0.11 0.11
ooSS-10 NO 0.85 0.85
OOSS-ll 1.2 0.3 1.5
OOSS-12 130.0 ND 130.0
OOSS-13 19.0 14.0 33.0
DGSS-14 34.0 86.0 120.0
DGSS-1S 4.2 ND 4.2
DGSS-16 4.7 5.4 10.1
OOSS-17 10.0 4.1 14.1
DGSS-17 Duplicate 16.0 ND 16.0
DGSS-1S 16.0 8.4 24.4
OOSS-19 270.0 ND 270.0
lConcentTation in parts per million (dry weight).
Aroc1ors listed are the only Aroc1ors detected.
6-19
-------
Table 5-17
PCB CONCENTRATIONS DETECTED IN
SUBSURFACE SOILS. DODGENS SITE
PCB Concentration1
SamDle Number Aroc1or 1242 Aroc1or 1248 Aroc1or 1254 Total PCBs
(Boring No. and
Sample Interval)
DGSB-l (3.S-5.0) ND 22.0 ND 22.0
DGSB-1 (6.S-8.0) ND 5.9 ND 5.9
DGSB-2 (4.0-6.0) 0.83 ND 0.17 1.0
DGSB-2A (4.0-6.0) 0.41 ND 0.087 0.497
DGSB-2B (4.0-6.0) 3.5 ND 0.91 4.41
DGSB-3B (4.0-6.0) ND 1.7 0.2 1.9
DGSB-3C (3.0-4.S) ND 45.0 8.7 53.7
DGSB-3C (6-10) 0.4 ND ND 0.4
DGSB-4A (4.0-6.0) 1.2 ND 0.36 1. 56
DGSB-4B (4.0-6.0) 0.82 ND 0.2S 1. 07
DGSB-4C (3.0-4.5) ND ND ND ND
DGSB-4C (S.S-7.0) ND ND 0.082 0.082
DGSB-S (4.0-6.0) 2700 ND ND 2700
DGSB-SA (4.0-6.0) ND 55.0 ND 55.0
DGSB-SB (4.0-6.0) ND 150.0 ND 150.0
DGSB-5C (1.S-3.0) NO 4.5 1.7 6.2
DGSB-SC (4.S-6.0) ND ,.~ ND ND
DGSB-6 (4.0-5.S) 0.3S } :0.2 0.55
DGSB-6 (6.S-8.0 NP ~D ND ND
DGSB-7 (3.S-S.0) 0.17 ND 0.029 0.199
DGSB-8 (3.S-S.0) ND 1.S 0.83 2.33
DGSB-8(3.S-S.0)
DupUcae. NO 2.7 2.9 5.6
DGSB-9 (4.0-6.0) NO ND ND ND
DGSB-9B (4.0-6.0) 1.6 ND 0.36 1. 96
DGSB-I0A (5.0-6.0) NO ND 0.21 0.21
DGSB-ll (5.0-5.5) ND ND ND ND
ND - Noe deeected.
lConcentration in parts per million (dry weight).
Aroc1ors listed are the only Aroc1ors detected.
6-21
-------
TABU 5-18
SUMMARy OF PARAMETERS DETECTED IN THE
HSL ANALYSIS OF SUBSURFACE SOIL SAMPLE DGSB-3C(6-10)
DODGENS SITE
Parameter1
Concentration
Volatile OrŁanics
Methylene Chloride
Acetone
0.019
0.069
PCBS2
Aroclor 1242
0.4
InorlZanics
Aluminum
Arsenic
Barium
Beryllium
Calcium
Chromium
Cobalt
Copper
Iron
Lead
Magnesium
Manganese
Nickel
Potassium
S 11 ver
Vanadium
Zinc
32400
17
37
0.92
182
24
5.3
20
8~80
15
1590
116
12
1950
3.3
49
,36
1 Concentrations in parts per million (dry weight).
2 Aroclor listed is the only Aroclor detected.
6-22
-------
TABLE' 5-1 9
SUMMARY Of PARAMETERS DETECTED IN GROUND WATER
AUGUST AND NOVEMBER 1988 . DODGENS SIIE
Welt. SlIIIpting Dete And Concentrat ion
DGMW- I DGHII-2 DGHII-3 DGMW-3A DGMW-I,
PARAMETER (1J
812-3/88 11/2188 812-3/88 11/2188 8/2-3/88 812.3188 11/2188 812-3/88 812-3/88 1112/68 11/2168 812-3/88 11/2/68
filtered Duplicate Duplicate
field P.r_ten
pH (I.U.) 4.9 5.2 1,.5 5.2 5.3 5.2 5.1, 5.1, 5.1, 5.1, 4.8
Specific: CordJc:tenc:e 20 34 22 34 30 23 21 21 23 23 22 35
(~0I/c:a 8 25 C)
PClI II» II» II» 'NO NO NO NO ND NO NO NO NO
Volatll. Orgenlc: C08pOUndI
Trlc:hloroeth- II» NO NO 0.012 NO 0.019 NO 110 NO 110 110 110
0'1
I T.trIChloroethane II» II» lID 0.005 II» 0.005 II» lID 110 NO NO 0.006
tV
.... Tot.1 VOCI NO NO lID 0.017 NO 0.021, ND NO lID NO 110 0.006
S.I.Vol.t Ite C08pOUndI
bll(2-Ethylh..yl) Phth.late 0.011 lID 0.012 0.013 0.021 NO
DI-n-oc:tyl Phthalate NO lID lID 0.012 NO NO
Inorll80lc:a
A 1181... 13_7 lID
Arlenlc: 0.005 lID
aarlI8 0.31 NO
Calc:h.. 4.7 2.1
Chro.iUII 0.021, 0.01
Copper 0.027 NO
111 . Concentration In parts per mil I ion.
110 lIot ~t"(t~.
-------
i
Table 5-20
PCB CONCENTRATIONS DETECTED IN
STREAM SEDIMENTS - DODGENS SITE
PCB Concencrationl
SamDle Number Aroclor 1248 Aroc1or 1254 Total PCBs
DGSD.l NO ND ND
DGSD.2 1.0 ND 1.0
DGSD- 2 Duplicate 0.36 ND 0.36
DGSD.3 NO ND ND
DGSD.4 NO ND ND
DGSD-S NO ND NO
..
-
DGSD-6 0.91 1.4 2.31
NO - Not detected.
lConcentration in ppm dry weight.
Aroc10rs listed are the only Aroc1ors detected.
6-27
-------
TABLE. 5-2l
SUMMARY OF PARAMETERS DETECTED IN SURFACE WATER
DODGENS SITE
Surface Yater Sample Site and Concentration
Parameter DGSY-l DGSY-2 DGSY- 3 DGSY-4 DGSY-5 DGSW-6 DGSW-6
DUDlicate
pH (s. u.) 6.4 6.4 5.1 5.6 6.4 5.9 5.9
Specific 39 39 2l 31 39 30 30
Conductance
umhos/cm
@ 25.C
PCBs (ppm) ND ND ND ND ND ND ND
Semivolatile Orianics
Bis(2-ethylhexyl) ND 0.01 0.015 0.012 0.019 ND 0.013
phthalate (ppm)
ND - Not Detect~(d.
6-29
-------
Table 5-22
SUMMARY OF SOIL BORINCS
CROSS ROADS SITE
Boring Date Top of Bottom of Toeal
Number Drilled Wasterl1 Wasterl1 DeDthrl1 Comments
CRSB-l 6/16/88 NF 5.0
CRSB-2 6/16/88 NF 5.0
CRSB-3 6/16/88 1.0 1.5 7.0 Capacitor foil and paper
CRSB-4 6/16/88 0.6 1.0 7.0 Capacitor debris
CRSB-5 6/16/88 0.5 1.0 7.0 Capacitor paper, foil 6.
metal
CRSB-6 6/15/88 NF 5.0
CRSB-6A 6/15/88 NF 5.0
CRSB-6B 6/15/88 NF 5.0
CRSB-7 6/15/88 NF 5.0
CRSB-7A 6/15/88 NF 5.0
CRSB-7B 6/16/88 1.5 4.0 8.0 Capacitor paper and cut
mica plates. Void 2.0 to
3.5 ft.
CRSB-7C 6/16/88 1.8 4.4 10.5 Capacitor foi1 and cut mica
plates
"' CRSB-8 6/15/88 NF 5.0
CRSB-8A 6/15/88 NF 5.0
CRSB-8B 6/15/88 NF 5.0
CRSB-9 6/15/88 NF 5.0
CRSB-10 6/15/88 NF 5.0
CRSB-ll 6/15/88 NF 5.0
[1) Feet below land surface
NF Not fo\U\d
i
I .
7-10
-------
Table ;-23
SUMMARY OF EXPLORATORY BORINGS
CROSS ROADS SITE
Boring Date Top of Bottom of Total
Number Dri lled Wastefll Wasterl' Deothfll Comments
CREB-l 6/20/88 NF 6.0
CREB-2 6/20/88 1.1 1.2
2.0 2.1 6.0 Capacitor paper
CREB-3 6/20/88 0.2 0.4 5.75 Capacitor debris
CREB - 4 6/20/88 0.4 0.6 3.5 Capacitor waste. Domestic
trash 2.6-3.1 ft.
CREB-5 6/20/88 NF 6.0 Domestic trash at 0.4 and
2.1 ft.
CREB-6 6/20/88 NF 3.5 Domestic trash 0.7 to 0.8
ft.
CREB-7 6/20/88 NF 6.0
CREB-8 6/20/88 NF 6.0
CREB-9 6/21/88 NF 4.0
CREB-10 6/21/88 NF 6.0
GREB -11 6/21/88 0.4 0.8 4.0 Capacitor foil and paper,
with small capacitors
CREB-12 6/21/88 0.4 0.6 4.0 Capacitor paper and foil
CREB-13 6/22/88 . NF 4.0
CREB-14 6/22/88 0.1 0.4 4.0 Capacitor foil and paper
CREB - 15 6/22/88 0.2 0.5 4.0 Capacitor foil
CREB-16 6/22/88 0.4 0.7 4.0 Capacitor wires
CREB-17 6/22/88 0.2 0.4 2.0 Capacitor foil
CREB-18 6/22/88 0.4 0.45
1.4 1.5 4.0 Capacitor foil
(1] Feet below land surface
NF Not found
7-12
.
-------
f
TAILE 5'~ 24
SUMMARY OF PARAMETERS DETECTED 1M MSL ANALYSIS OF WASTE.
CROSS ROADS SITE
I Waste
PARAMETER [1] I
CRSB.] CRSB'] DL CIISB.4 CRU'S CRIB' 78 CRSB'],S. CR5B-3,5.
I (1.0.1.5) (1.0.1.5> (0.6,1.0> (0.5-0.9> (1.7-2.0> 78, 7C 78, 7C Ol
PCBs (2) I
ArocLor 1242 I 57.0 61:0
ArocLor 1254 I 61.0 6/..0
. Total PCBs I 118.0 125.0
Volatile Orgenic CQIPOUndI I
Methylene Chloride I 0.810 BE 0.840 10 0.094 B 0.290 IE 0.100 B
Acetone I 0.054 NO NO NO NO
1,2'Dichloroethene (total> I 0.110 0.140 D lID lID lID
Trichloroethene I 0.038 0.048 D NO NO NO
I norgenics
Al...i".. 82,100 .
-
Arsenic 106
Barl... 93
Berylll... 0.95
C8C8i... 27 .
Calci... 276
ChrCIIIlui 126
C0b8lt 11
C~r 84
Iron 49,800 .
Leed 231
M"" i... 2280 .
Meng....a 361
Mickal 123
Pot..sl... 2730
Sliver 3.5
VINdI... 85 III
Zinc 730
Cyeni de 721
[1J . Concentrltlons In partS par .HlIon (dry ..i;hU.
[2] . Arclors listed ara the only Arclorl detected.
I . Par_ter flUId In 8UOCiated bln.
D, DL . Diluted Ullpla.
lID . Mot detected.
. . Indlcat.. «4:IlIcata analysll
control ll.1 tl.
il not wi tllin
7-13
-------
TAiLE 5-25
- SUMMARY OF PARAMETERS DETECTED 1M NSL ANALYSIS
OF UPGRADIEMT SURFACE SOILS'
CROSS ROADS SITE
Surface Soil
PARAMETER (1)
CRSS.1
CISS-'
Oupl ic.t.
PCBs
NO
NO
Volatile Organic Compounds
Methylene Chloride
TrlchlorGeth-
0.0101
0.009
0.008 .
0.013
Tetrachloroethane
0.010
0.014
I norganics
Alualnua
124,000 .
Arsenic
129
212
Barlua
.eryll iI.
Cllcl..
11
135
Chr~l..
74
19
Coblilt
CCIA)Ir
35
Iron
63,500 .
Le8d
34
7000
...."..1..
...,..,...
420 .
Mickel
35
8890
Pot...t..
s u vet'
VlNdt..
1.9
157 M
Zinc
120
[11 . ConcentretiON in r-rts per 8Ullon (dry ..Ight).
. . 'er_ter flUId in U80Cieted blri.
D, DL . Diluted ....,l8.
lID . lIot detected.
. . Indicat.. cLlpllcat8 _lyst. i. not IIit"in control li8its.
7-15
-------
Sample
Number
....
CRSS-l
CRSS-2
CRSS-3
CRSS-4
CRSS-5
CRSS-6
CRSS-7
CRSS-8
CRSS-9
CRSS-10
CRSS-11
CRSS-12
CRSS-13
CRSS-14
CRSS-15
CRSS-16
CRSS-17
CRSS-18
'CRSS-19
CRSS-20
CRSS-21
CRSS-22
CRSS-23
CRSS-23 Duplicate
CRSS-24
CRSS-25
CRSS-26
CRSS-26 Duplicate
CRSS-27
ND - Not Detected
TABLE 5-26
PCB CONCENTRATIONS DETECTED IN SURFACE SOILS
. CROSS ROADS SITE
Aroc1or 1248
ND
ND
ND
ND
NO
NO
3.50
NO
410.00
ND
NO
6.30
1. 90
0.21
NO
NO
5.20
5.30
0.57
NO
NO
NO
NO
NO
ND
ND
'ND
NO
ND
PCB Concentrationl
Aroc1or 1254
ND
2.00
NO
1.30
NO
NO
1.80
0.37
NO
0.48
0.54
11.00
2.60
0.35
NO
2.00
4.90
2.60
0.25
1.20
0.30
0.56
5.70
2.20
0.63
0.12
NO
NO
1.20
1 Concentrations are in part. per million (dry weight)
Aroc1ors listed are the only Aroc1ors detected.
7-16
Total PCB
ND
2.00
ND
1. 30
ND
ND
5.30
0.37
410.00
0.48
0.54
17'.30
4.50
0.56
NO
2.00
10.10
7.90
0.82
1.20
0.30
0.56
5.70
2.20
0.63
0.12
ND
ND
1.20
-------
TABLE 5-27
PCB CONCENTRATIONS DETECTED IN SUBSURFACE' SOILS
CROSS ROADS SITE
Sample Number & PCB Concentrationl
SamDle Interval Aroclor 1248 Aroclor 1254 Total PCB
CRSB-l(3.5-5.0) ND ND ND
CRSB-2(3.5-5.0) NO NO ND
CRSB-3(2.S-4.0) 0.25 0.07 0.32
CRSB-3(S.0-7.0) 0.36 0.13 0.49
CRSB-4(2.S-4.0) 0.19 0.12 0.31
CRSB-4(5.0-7.0) NO NO NO
CRSB-S(3.0-4.S) NO NO NO
CRSB-5(S.0-7.0) NO NO NO
CRSB-6(3.S-5.0) NO NO ND
CRSB-6A(3. 5-5.5) ND 0.73 0.73
CRSB-6B(3.S-5.0) NO NO NO
CRSB-7(3.5-5.0) NO NO NO
CRSB-7(3.5-S.0)Dup1icate NO NO NO
CRSB-7A(3.S-5.0) NO NO NO
CRSB-7C(6.5-S.0) 0.79 1.60 2.39
CRSB-7C(9.0-l0.5) 0.62 0.46 LOS
CRSB-S(3.5-5.0) NO NO NO
CRSB-SA(3.5-5.0) NO NO NO
CRSB-SB(3.5-5.0) NO NO NO
CRSB-SB(3.5-5.0)Dup1icate NO NO NO
CRSB-9(3.5-5.0) NO NO NO
CRSB-10(3.5-5.0) NO NO NO
CRSB-ll(3.5-5.0) NO NO NO
CRWB-2(0.0-1.5)[2] NO 3.5 3.5
CRWB-2(1.5-3.0) NO 0.62 0.62
CRWB - 3 (0. 0 -1. 5) NO NO NO
CRWB-3(l. 5-3.0) - ~ NO NO
NO - Not Detected
1 Concentrations are in parts per million (dry weight)
Aroclors listed are the only Aroclors detected.
[2]"- CR~ S8llples are 88llples taken at monitoring well locations.
7-17
-------
.~
Table 5-28
SUKKARY OF PARAMETERS DETECTED IN THE HSL ANALYSIS
OF SUBSURFACE SOIL SAMPLE CRSB-4(S.0-7.0)
CROSS ROADS SITE
Parameter
Concentration1
PCBs
ND
Volatile Ortanics
Methylene Chloride
Acetone
0.013B
0.046
Pesticides
Heptachlor epoxide
0.010
~
Inorianics
Aluminum
Arsenic
Barium
Calcium
Chromium
Cobal t
Copper
Iron
Lead
Magnesium
Manganese
Potassium
S 11 ver
Vanadium
Zinc
36000
40
182
80
16
10
54
22100
73
4590
188
3650
4.6
27
109
1 Concentrations are in parts per million {dry weight}
7-18
-------
I-
TAiLE 5-29
SUMMAlY OF PARAMETEaS DETECTED IN NSL ANALYSIS OF WASTE
. JOIIII TaGUIa II TE
SAMPLE 81tJ18ER
PARMEIU I1J
.11.-2
(1.0-1.5)
JTSI-5I
(2.5-3.0) aE
810.00 Q
JTSI-J
(0.95- 1.4)
JTSI-51
(2.5-3.0)
PCII 12J
Aroclor 1248
Vol.tll. Greenle.
Methylene Chloride
0.076 I 0.061 I 0.042 I 0.037 I
NO NO 0.040 NO
0.300 NO NO NO
NO 0.410 NO NO
Aeet-
letrechlorOilhene
IrleMorOithene
Q)
I
~
W
lnoreenlca
A "al...
Ant l..wy
Anenle
IIr ha
'8dlha
Cateha
"1 - Concentr.tlon In peril per .IIIlon (dry weight).
121 . Aroclor. Illled are Ihe only Aroclort detected.
I - Irdl"le. per_ler .... allo delected In ..Iocl.led blenk.
Dl - Dllule ,.-pIe.
lID - 1101 delected.
If - lepe.1 _lysis.
- lodiul.. ~I iUle analysis is 001 ..~Ihin conlrol I illils:
JTSI-2A. JA. 50
(1.0-1.5/1.0-1.5/1.5'1.9)
130.00
44200
1.7
20
596
5.2
2160
JISI'2A.JA.50
(1.0'1.5/1.0-1.5/1.5-1.9' DL
-------
TABLE S-2CJcontlnued)
SUMMARY Of PARAMETEIS DETECTED II IlL AMALYSIS Of WASTE
JOKI TIOTTEI liTE
PAIMETEI (1)
Inorll8"lCI (cont I rued)
Chr_lua
CabI it
Copper
CY8l\Ide
Iron
Leed
co ".gne.l18
I
...... "'8-"
~
Mercury
Pot8llua
SHver
Vlnldlua
Zinc
.1111-2
(1.0-1.5)
JTSI- ]
(0.95-1.4)
(1) . concentr.tlon In pert. par .Ittlon (drV weight).
(2) . Aroc'or. 'I.ted are the only Aroctor. detected.-
I . Indlcat.. per_ter .... at.o detected In ...oclated blenk-
OL . Dltute .-.pte.
. - lIot detected.
IE - lepe.t anltyel..
. . Indicate. duplicate anlly.l. I. not within control II.itl.
SAMPLE 1UI8ŁR
JTSI-5'
CZ.5'].0)
JISI-S'
(2.5-].0) IE
JISa-za,3A,SO
(1.0-1.5/1.0-1.5/1.5-1.9)
48
6.2
168
1.05
36000
696
121,0
491
1.6
2210
52
64
681
JIS1-2A.JA.50
(1.0'1.5/1.0-1.5/1.5-1.9) Ol
-------
TABLE 5-]0
SUMMARY Of HSl INORGANIC COMPOUNDS DEtECtED IN UPGRADIENt SURfACE SOilS
COLLECtED AT ALL SITES ANO AREAS [1)
Per_ten SASS. 1 SBSS-1 SCSS.1 5OSS-1 SfSS.1 SGSS-1 SHSS.1 ClSS.DUP-1 JUS-I WlSS-1 OGSS -1 RANGŁ AVERAGE
Ahai... 36,400 40,700 19,800 4),000 25,000 30,400 46,800 124,000* 3100 36,600 60,600 3,100 - 124,000 60,611
Ant 18011\' II» II» . II» II» NO NO 0.70 N NO NO 110 0.70 0.70
Anenle 7.3 2.1 III 17 II 19 . 10 . 14 51 24 I 129 63 17 28 2.1 . 129 30
'.rh.. 22 56 4) ]2 ]2 225 6] 212 7.8 37 60 7.8 - 225 79.0
.eryH ha lID lID lID lID lID NO NO 11 NO II» NO 11 11
CedliI8 1.8 lID II» II» II» NO NO NO 1.4 NO NO 1.1, - 1.8 1.6
C.lelU8 271 1520 . 447 154 280 4310 299 135 143 301 136 135 - t,310 727
Chr08IU8 31 . 19 II 26 I 1] . 20. 411 25 N 71, 35 . 12 31 12 - 71, 30
Cabell 20 14 8.5 NO lID 9.9 16 19 5.2 NO NO 5.2 . 20 IJ
Copper 48 3711 18 I 24. 13* 29N 35 N 35 19 12 25 12 - 1,8 27
w Iran 28,700 23,700 36,900 28,000. 23,000. 39,300 30,000 63,500 . 16,400 16,]00 34 ,900 16,300 - 63,500 30,973
I
IV 140
....., le8d 46 31 I 18 10 5 21 S 22 34 24 21, 19 10 - 11,0 35
ItetMIIU8 3650 1180 . 415 200 150 447 2020 7000 488 411 393 150 - 7000 11,87
"8nII--e 532 517 I 644 74 * 130 * 107 349 420 * 244 84 291 71, . Mio 308
Mercury NO NO 0.22 NO 0.04) 0.17 NO NO NO NO 110 0.043 . 0.22 0.1~
Ilekel 20 15 4.2 NO II» 6.7 11 35 11 NO 15 1,.2 . 35 15
Pote..IU8 2180 989 633 340* 440. 516 1620 8890 72 920 1380 72. 8890 1635
S.IenIU8 II» NO NO NO II» NO NO NO NO NO 110 NO NO
Siher II» NO NO NO 0.92 0.80 . 1.2 . 1.9 NO NO 1.7 N* 0.80. 1.9 1.3
SodiU8 1160 NO NO II» NO NO NO NO NO NO NO 1160 1160
'helllU8 NO NO NO NO NO NO 110 NO 110 NO NO NO NO
v8l\ed I" 97 11,5 . 65 II 81 N' 1,0 II' 78 II 86N 157 N 1,6 26 86 26 . 157 82
line: 60 88 ".. 21 20 " 21 . 21,7 48 120 30 23 1,2 20 . 2l,] 65
Cyanide NO NO NO NO 110 110 0.65 NO 6.1 II 0.85 NO 0.65 . 6.1 2.5
111 - Conc~ntratlon In parts per million (dry weight). S . Indicates value deter.ioed by method 0' standard eddtition. NO . Nol detected.
~icates spike 5~le recovery il not within control I i.lts. . .~ic8tes dupllc8te analysis is not within control limits.
' - ~.J "
-------
TABLE 5... 31
RANGE OF CCIICEIiTRATlOliS (1] OF tliOltCOAlitC
tOCPouNOS FOR GEORGIA, SOJTH CAROL IliA,
ANO NORTH CAROLIIIA, AND FOR UPGltADIEIiT SURFACE
SOILS FOIt ALL OF THE PICKEIIS COUIITY SITES
PI CICEIIS SITES
PARAMETER (ppII) RAIIGE ($C, IIC, GA) RANGE
Aluairul 3000 . > 100,000 3100 . 124,000
Arsenic 0.3 . 29 2.1 . 129
88ri", 15 . 700 1.8 . 225
Berylli'" 1 . 1 11
Calci", 300 . 12,000 135 . 4310
ChrClliU8 5 . 300 12 . 14
Cobalt 3 . 50 5.2 . 20
Copper 2 . 100 12 . 048
Iron 3000 . 10,000 16,300 . 63,500
Leed 10 . 300 10 . 140
"agnesi", 100 . 10,000 150 . 1000
"..anne 0.03 . 3000 14 . 644
"ercury 0.02 . 1 0.043 . 0.22
Nickel 5 . 150 4.2 . 35
Potl..i", 100 . 31,000 12 . 8890
Selen'", <0.1. 1.3 NO
Sodiua 500 . 15,000 1160
-
Thill i'" 4,41 . 10.67 NO
Van8diua 10 . 300 26 . 157
Zinc 150,000 . 400,000 20 . 247
[1] Fr08'Chronical Anllyaii of Soils and Other Surficial "Iterills of the
Conte,..inoua united Stites, U.S. Geological Surver Report 81"191, 1981.
3-28
-------
TAilE 5- 3 2
SUMMARy OF PARAMETERS OETECTED 1M HSl
AIIAlTSIS OF UPGaAOIEliT sa..FACŁ SOilS -
JOHM TROTTER SITE
SMPlE IUCIER
PARMETER [1]
.ITSS-'
.ITSS-1
OUPL I c:A IE
peas
lID
lID
Volatile Orpnlca
Methylene Chloride
0.012 .
0.006 .
lnorganlcs
Iran
3100 1750
63 67
7.8 lID
1.4 1.7
143 160
35 . 31 .
5.2 3.7
19 20
6.1 II 7. I II
16400 19200
24 24
418 527
244 228
II 15
72 81
46 43
30 29
Ah.I,..
Arsenic
'arh.
Cac8118
talcll8
ChrCl8l18
Cobelt
COsIPer
Cy8nide
Lead
....,..118
Me.....e
IIlckel
Potull8
VII'I8dII8
Zrnc
[1J . COncentretlan In perts per .Illian (dry weltht).
. - Indlcat.. per_ter ala<. detected In essocleted blank.
M - Indlcat.. spike 88Iple recovery Is not within cantrol 11.lts.
lID . lIot detected.
. - Indlcat.. duplicate anllysls Is not within cantrol II.lts.
8-16
-------
TA8LE 5-33
SUKHARY OF VOC AND PCB CONCENTRATIONSl
DETECTED IN SURFACE SOILS
JOHN TROTTER SITE
Sample VOCs PCBs:
Number Methylene Chloride Acetone Aroclor Aroclor Total ?CBs
1248 1254
JTSS-l 0.0128 NO NO ND
JTSS-Dup-l NO NO NO ND
JTSS-2 NO NO 1.5 0.75 2.25
JTSS-3 NO NO NO 0.084 0.084
JTSS-4 NO NO NO 0.15 0.15
JTSS-5 NO NO NO 1.60 1.6
JTSS-6 NO NO 3.1 ND 3.1
JTSS-7 NO NO 1.9 3.3 5.2
JTSS-8 NO NO 0.42 0.64 1.06
JTSS-9 ND ND 14 ND 14
JTSS-I0 NO NO 34 63 97
JTSS -11 NO NO NO 0.054 0.054
JTSS-Dup 1 NO ND NO 4 4.2
JTSS-12 NO NO NO 0.17 0.17
JTSS-13 NO ND NO 2.9 2.9
JTSS-14 NO NO ND 0.61 0.61
JTSS-15 NO NO NO NO
JTSS-16 NO NO NO 1.2 1.2
JTSS-17 NO NO 4 ND 4
JTSS-18 NO ND ND 0.2 0.2
JTSS-19 NO ND ND 0.12 0.120
JTSS-20 NO NO NO 0.077 0.077
JTSS-21 NO 0.0838 NO ND
JTSS-22 NO ND NO 0.055 0.055
JTSS-23 NO NO ND 0.88 0.88
JTSS-24 0.0098 NO NO 0.053 0.053
JTSS-25 0.0128 . 0.0158 NO 0.16 0.16
JTSS-26 O.OOBB 0.0318 NO ND
JTSS-27 0.0108 NO NO 0.32 0.32
JTSS-28 0.0298 0.0198 ND 0.12 0.12
JTSS-29 0.031B 0.0538 NO 2. 2.3
JTSS-30 NO 0.0248 NO 94 94
JTSS-31 NO 0.0258 NO 3.5 3.5
JTSS-Dup 2 NO 0.1508 NO 4.2 4.2
JTSS-32 NO 0.0138 NO 8.8 8.8
JTSS-33 0.0088 NO NO 2.6 2.6
JTSS-34 0.0128 NO ND 3.2 3.2
JTSS-35 0.0128 0.0138 NO ND NO
JTSS-36 NO 0.0238 ND 0.19 0.19
JTSS-37 NO NO 0.055 0.055
8 - Indicates parameter also detected in associated blank.
1 Concentrations are in parts per million (dry weight).
: Aroclors listed are the only Aroclors detected.
8-17
-------
TABLE 5- 34
PCI CONCENTRATIONS DETECTED IN SUBSURFACE SOILS
JOHN TROTTER SITE
Sample Identification
(Borin~ No & Samnle Interval
JT5B-1 (4.0-6.0)
JTSB-LA (4.0-6.0)
JTSB-1B (4.0-6.0)
JT5B-2 (2.5-4.0)
JT5B-2 (5.0-7.0)
JT5B-3 (2.5-4.0)
JT5B-3 (5.0-6.5)
JT5B-4 (4.0-6.0)
JTSB-4A (4.0-6.0)
JTSB-4C (4.0-6.0)
JTSB-4C (4.0-6.0)(dup1icate)
JTSB-5 (4.0-6.0)
JTSB-5A (4.0-6.0)
JTSB-5B (4.0-5.5)
JTSB-51 (6.5-8.0)
JT5B-6 (4.0-6.0)
J~SB-6A (4.0-6.0)
JTSB-6B (4.0-6.0) .
JRSI-7 (4.0-6.0)
JT51-71 (4.0-6.0)
JT51-8A (4.0-5.3)
JT5B-81 (4.0-6.0)
JTSI-9 (4.0-6.0)
JTSB-9A (4.0-6.0)
JTSI-9A '(4.0-6. O)(duplicate)
JT5B-91 (4.0-6.0)
JTWI-2 (0.0-1.5)
JTWB-2 (1.5-3.0)
JTWB-3 (0.0-1.5)
JTWB-3 (1.5-3.0)
JTWI-4 (0.0-2.0)
JTWB-4 (2.0-3.5)
PCB Concen:rationl
Aroclor Aroclor'
1248 1254
ND
0.3
4.1
4.0
ND
27
120
ND
ND
ND
ND
0.31
1.2
0.42
2.7
ND
ND
NO
NO
NO
NO
NO
NO
NO
NO
0.41
"NO
NO
NO
NO
NO
NO
0.048
0.15
2.5
NO
ND
NO
NO
NO
NO
ND
ND
0.12
ND
ND
ND
ND
ND
ND
0.086
0.052
ND
ND
Nt
ND
NO
0.:'1
0.069
NO
0.044
ND
ND
ND
1 Concentrations are in parts per million (dry weight).
Aroc1ors listed are the only Aroclors detected.
8-18
Total
PCBs
0.058
0.45
6.6
4.0
27
120
ND
ND
ND
ND
0.43
1.2
0.42
2.7
ND
ND
NO
0.086
0.052
NO
ND
ND
ND
ND
0.62
0.0~9
ND '
0.044
ND
ND
ND
-------
TABLE 5-35
PARAMETERS DETECTED IN HSL ANALYSIS
OF SUBSURFACE SOILS
JOHN TROTTER SITE
Concencrationl
Parameter
JTSB-5B (6.5-8.0)
Volatile Or~anics
Methylene chloride
Acetone
O.OlOB
0.073
PCBs
Aroclor 12482
2.700
Metals.
Aluminum
Arsenic
Barium
Beryllium
Calciwa
Chromium
Cobalt
Iron
Lead
Magnesium
Manganese
Nickel
Potassium
Vanadiwa
Zinc
3,760
50
60
0.97
48
19
1.8
21,800
41
62
32
36
91
5.2
94
lConcentrations are in parts per million (dry weight)
2Aroclor listed is the only Aroclor detected.
8-19
-------
",.".j
"
TAiLE 5-36
SUMMAlY OF PARAMETERS DETECTED I. GROUND WATER
IOVEIllER 1988 AID FEI_Y 1989 . .lOIII TlOnER SITE
Well 8nd S~llf1II Dltl
..n.,.,
"'''''2
..,..,. ]
..,..,.JA
PARAME'ER I1J
11/16/88 211.2/89
1"'6,88 '1"6/88 2/1-2/89
DL
2/1-2/89
11/16/88
11116/88 11/16/88 11/16/88 211-2/89
filtered Dupllclte
Field Plr...t.rl
pH (I.U.)
Specific CGn!b:t8nC'
("./ea 8 25 C)
5.5 5.] 5.0 4.9 4.6 5.8 5.6 5.1 .
47 2] )4 12 )4 ]6 '6 24
10 10 10 10 10 110 110 110
PCII
, Vol It II. Orlenici
CD
I
tV
....
0.57
lID
0.096
10
Ac.t-
Inorganic I
AIUlI...
187 . 0.05. 137.
0.213 .. 0.082 ..
1.03 0.87
0.007 . 0.005 .
1.7 0.9 1.5
0.19 . 0.149.
0.11 0.9
0.212 . 0.151 .
Arlll'lic
ilrlUl
I.ryl' 'UI
CI'CIUI
Cbr.IUI
Cabel t
Copper
111 . Concentrlt Ion In put I per .\1 lion.
Dl . Dilute Il8ple.
II . Indlc.te. the correl.tion coeffeclent for
"elhod 0' Standard Addition II less than 0.995.
NO . lIot detected.
. . Indlcltel dupllc.te lnelysll II not within control li.ils.
-
-------
TABLE 5-36 (contlRJed)
SUMMARY OF PARAMETERS DETECTED II GROUND YATER
IIOVE"U 1988 AND FEIIlUAltY 1989 - JOIUI TROTTER S liE
We" IInd S8IIIpUng Date
JT"'-3I JT"'-4
""'11 (1J 11/16/8 11/16/88 211-2/89 11/16/88 211-2189 2/1.2/89
Ouptlcate Oupi lcate
InDI'I8n'C8. (cont',,-) ,.
Iron
L.8d
....,......
........
Ilckei
OJ Pota..l..
I
tV Sodl..
~
V8n8dI..
ZInc
Other
Total AlkalInIty (a. caCOS) 40 40 30 1.5 8.3 4.5
CMorlde 3.1 3.1 3.1 3.1 4.2 3.8
H.rdne.. (.. caCOS) 44 49 32 16 24 18
Sulperded Sol Ida 81 11 8.0 110 360 960
SUlfate 11 21 4.6 5.8 2.8 1.8
11J . Concentration In perta per .IUlon.
lID - lIot detected.
-------
'AILE 5-)b(eontl..-d)
SUMMlY OF PAiAllETEIS DETECTED .1 GlCUID WA'ER
NOVEMBEI 1988 AID FElRUARY 1989 - JONI 'IO"EI SITE
Wel I 8nd llIIIpIlng Date
'''''EI (1J.
"TMII- 3. "'MII-4
11/16/8 11116/88 2/1-2189 11116/88 211-2/89 2/1-2189
D.lleate D.tteate
, 6.4 6.4 6.1 5.8 5.0
97 97 59 45 35
lID lID NO lID lID
flald 'ar_ten
pi (8 .u. »
Ip8clfle Cora.ctence
(UlflOI/C8 . 25 C)
PCII
Q)
I
IV
~
Volatile Orlenle.
Aeetone
0.013
lID
lID
I norlenlel
AI~I...
Arlenle
'arl~
lery" h.
Calcl~
Chr_l~
Cobalt
Cower
111 .' Concentration 10 peru per .111 ion.
lID . lIot detected.
. ........
._-,'.,.:
-------
TAllE S- 36(contfrued)
SlItMAI, Of PQMUEIS DUEC'ED II GllOUIID WAIEI
IOVEMBfI 1988 AID fEllUAI' 1989 - JOHI 'IO"EI SIIE
PAiNEUI [1J
.I,"" 1
","'88 11/16/88 211-2/89
DL
.1''''-2
Yet t 8nd SlIIIpt 11'11 Dlte
.I,"" :s
J'~-]A
11/16/88 211-2/89
,,,,6188
211-2/89
11/16/88 11/16/88 11/16/88 211-2/89
flttered Dupllclte
Inorf8nlcl Ccont 1,,*)
Iron
146 . 91.0.
O.013S. O.09]S.
20.8 . 0.7 . 18.0 .
.6.13 0.138 4.95
0.07 0.060
18.OS 16.4
O.ODS ].04 lID
0.299 0.261
0.267. 0.019. 0.207.
Le8d
N8gnealUi
M"".I
Ilcltet
Pote..IUI
CD
I
N
N
SodlUl
V8MdIUl
ZInc:
Other
Suttltl
2.2
13 S.3 4.0 6.4 6.4 9.0 11
3.3 3.0 ].8 3.S 4.6 ].5 1..5
45 19 5.3 n 13 16 1]
1100 710 780 2340 200 110 120
1.0 9.0 <1.0 1.1 2.8 8.0 2.2
for Method 0' St8nd8rd Addition i. te5' thin 0.995.
'ot.t Atltltlnlty Ce. C8C03)
Chtorlde
6.4
3.1
Suapended Sot Ids
81
1200
H.rdnell Cel C8C03)
11) - Concentrltlon In pert. per .Ittlon.
DL - Dilute llIIIptl.
I - Indlcltea the corret.tlon coeffeclent
ID . lot detected.
. . Indlcete. dupllclte anelYII. I. not within control tl.ltl.
-------
TABU 5-37
VOLATILE ORGANICS AND PCB CON~ENTRAT!ONS
DETECTED IN STREAM SEDIMENTS
JOHN TROTI'za SITE
5 amp 1 e
~umber
Concencracionl
Volacile Or~anics
~e~~vlene Chloride
PCBs
AroclorZ Tocal
1254 PCBs
JTSD-l
JTSD-:(duplicace)
JTSD-2
ND
~D
O.OlOB
ND
ND
0.092
0.092
1 C~ncenc=a~ions are in ?ar~s per mi:lion(dry weighc;
: Aroc:or ~isced is :~e o~iy Aroclor detecced.
.'
8-25
-------
.,
TA8lE .~-)8
SUMMAR' Of PARAMETERS OE'EC'tU IN NSl ANALYSIS Of WA~'E -
SANGAMO PROPfR' Y AlEA A
S8llple Numer
PAR_In I1J
IAsa-1 IASI-ZA usa-I,ZA SASI-3A SASI-SA DL SASI-SA RE SASI-41 SASI-48 RE SAS8-1,2A SAS8-)A,4I SASI-)A,48
(2.0 - 4.0) (2.0 - 4.0) DL (7.0 . 9.0) (7.0' 9.0) (7.0 - 9.0) (6.0 - 8.0) (6.0 - 8.0) Ol
PCI. [21
Aroclor 1242 . 18,1100 23,000
Aroclor 1248 13 110 .
Aroclor 1254 4.4 4900 5200
lotal PCI. 17.4 22,900 .28,200
Volatile Organic.
w Mathylene Chloride 0.038 I 0.009 I O.S70 IE 0.360 ID 0.120 B 0.170 I 0.330 B
I
N Acetone 11) . 0.021 I NO . NO O. ISO I
~
Irlchloroethene NO . 0.015 NO II) NO NO
letrachloroethene NO . 0.012 NO II) NO NO
Irana.I,2-Dlchloroethene NO NO NO NO NO 1.1 2 E
ChlorobenJene NO . NO NO NO 0.067 0.120
lotal Xylene. NO '. 0.052 0.050 II) 0.067 0.110
Inorganic.
AIUlI..... 240,000 180,000,
Ar.enlt 230 S. ISO S.
[1) - Concentration In pertl per .llllon (dry weight).
12) . Aroclor. lilted .re the only Aroclorl detected.
I Indlclte. per...ter WI' detected In I..ocllted blank.
O.Ol Ollule ..-ple.
E Eltl..led vllue.
N - Indlclte. .pike ..-ple recovery is 001 wilhin conlrol limils.
NO . NOI detected.
RE . Repell analysi..
S . Indicate. vllue dete,..ined by Melhod of Slandard Addi I ion.
. . Indlcltes ~llclle I08lysis is 001 wilhin conlrol li.iIS.
-------
TABLE 5- 3ftcoot 1fU!d)
SUMMARY Of PARAMETERS DETECTED II "SL ANALYSIS Of WASTE'
SAMGAMO PlOPEI" AREA A
S..I. llIIber
PARAMUEI m
SAIl-I IASI'ZA
(2.0 - 4.0) cz.o - 4.0)
SASI-'.2A
Dl
SA51']A SASI-]A Dl SA51-]A IE 5A58-48 5A5B-48 IE SASB-1,2A SA51-34.41 1A51-]A,4B
(7.0 - 9.0) (7.0 - 9.0) (7.0 - 9.0) (6.0' 8.0) (6.0 - 8.0) Dl
Inor..,..lc. (conti,.,..)
Iron
]5 81
810 0.92
120 320
16 " 28 "
13 15
1,7" 71 "
24,000 " 26,000 "
15 5 10 S
]10 920
~;,OO . 300 "
950" 2600 "
NO 2.3
52 N" 72 N"
44 " 90 .
IlrlUl
lery" 118
CllclUl
CIIr_IUI
Cobilt
CllflPer
""
I
N
\It
l.ed
Mqnt8 118
M8n8t.....
Pot I"118
Sit ver
vlnldiUl
Zinc
(11 - Concentr.tlon In pert. per 8111100 (dry weight).
1 - Indlclt" per_ter .... detected In .lIocllted bin.
O,Ol - Dilute ...Ie.
E htlMted nlue.
N - Indic.tes spike s.-ple recovery I, not within control li.ils.
NO . Not detecled.
IE . lepe.t I08IYlil.
S . Indlc.te. vilue deteralned by "elhod of Standard Addilion.
" - Indlc.tel dUpllc.te I08ly.i. i. not wilhin control li.ils.
. .....
-------
TABLE 5-39
SUMMARY OF PARAMETERS DETECTED IN
HSL ANALYSIS OF UPGRADIENT SURFACE SOILS.
SANGAMO PROPERTY AREA A
PARAMETER
1'1
SASS- ,
SASS.' DL
PCBs 121
Aroclor 121,8
21
39
Aroclor 1251,
Total PCBs
66
Volatile Organics
Methylene Chloride
0.023
lnorganics
Alua;rua
Iron
36400
1.3
22
1.8
211
31 . I
20
48
I 28100
I 46
I 3650
I 532
I 20
I 2180
I 1160
I 91
I 60
Arsenic
lari18
CICiII i 18
Calciua
ChrCllllil.
CobIl t
Copper
Leact
"'gnesl18
Mang...e
Nicltel
Potllsi18
SOd I 18
Venactl UI
Zinc
[1] . Concentratt~ in perts per .illion (dry weight).
[2] . Aroclorl lilted are tne only Aroclors detected.
IC) . Not detectwcl.
DL . Dilute limple.
. . Indicates duplicate analysis is not within control li.its.
3-52A
-------
TABLE 5-40
PCB CONCENTRATIONS DETECTED IN SURFACE SOILS -
SANGAMO PROPERTY AREA A
I PARAMETER (2)
SAMPLE NUMBER [1] I Aroclor 1248 Aroclor 1254 Total PCBs
SASS-1 I. 27.0 0 39.0 0 66.00
SASS. 2 I 31 30 61
SASS.3 I 190 17 207
SASS." I lID 63 63
SASS-5 I "" 20 64
SASS.6 I 2.6 6.9 9.5
SASS.7 I 76 27 103
SASS.S I 34 20 54
SASS - 9 I 1100 '''0 1240
SASS. 10 I 2.S 11 13.S
SASS. " I 120 33 153
SASS~12 I &40 150 990
SASS. 12 1500 380 1aao
Oupl leu.
SASS-13 10 20 30
SASS- '" 6.1 ".5 10.6
SASS. 15 . 17 "0 57
SASS- 16 32 SO 112 .
SASS-17 1." 2.7 ".1
SASS- 1S 1.1 1.3 2.4
$ASS. 19 2" 32 56
[1] - Concentration in P8rtl par .HUon (dry weight).
[21 - Aroleora listed art the only Aroclor. detected.
o - Oilute s8lpL~.
110 - Not detected.
3-53
-------
TABLE 5-4 1
PCI CONCENTRATIONS DETECTED tN SUBSURFACE SOtLS -
SANGAMO PROPERTY AREA A
I PARAMETER [2]
SAMPLE NUMBER [1] I Aroclor 1242 .roclor 1248 Aroctor 1254 Toul PCBs
S.SB-1 (6.0 - 8.0) I lID 0.630 0.130 0.76
SAS8 - 1 (9.0' 11.0) lID lID 0.053 0.053
SASB - 2 (6.0' 8.0) 0.280 lID 0.150 0.43
SASB-" (6.0 - 8.0) lID 0.700 0.370 '-07
SAS8-" (9.0' 11.0) lID 2.2 0.470 2.67
SASB - 3 (8.0 - 9.0) lID 35 18 53
SAS8-4A (4.0' 6.0) 120 lID 19 139
SASB'''' (4.0' 6.0) 45 lID 9.6 54.6"
D~licat.
SASB-48 (10.0 - 12.0) 10 lID 1.3 ".3
SASB-4C (13.0' 15.0) 5000 lID 600 5600
SAWI' 2 (0.0 - 1.5) [3] lID 9 4.1 13.1
SAWI.2 (1.5' 3.0) lID 23 13 36
SAW - 3 (0.0 - 1.5) lID Z20 120 3'0
SAWI- 3 (1.5' 3.0) lID 49 23 72
[1] - Concentration In perts per .IUlon (dry wei8hU.
[2] . Aroclorl lilted ara the only Aroclors detected.
[3] - SA""I I8IIIPled at proposed 8III'Iltorlng well locations.
Monitoring wells Installed at different locations.
lID - Not detected.
3-55
-------
TABLE 5-42
SUMMAtY OF PARAMETERS DETECTED III
HSl ANALYSIS OF SUBSURFACE SOilS -
SANGAMQ PROPERTT AREA A
(1)
I
I
I SASI-3A
<11.0 - 13.0)
S8q)l e IIUli:ler
PARAMETER
SAS8.3A Ol
<11.0 . 13.0)
PCII [2J
Aroelor 1242
Aroelor 1254
98
26
130
lID
Total Pcal
124
130
Volatile Orgenici
lID
S..i.Volatlle Orgenic.
bil
-------
..
TABLE )-.4 J
SUMMARY Of PARAMETERS DETECTED IN GROUND WATER
OCJOIfl 1988 ANO JANUARY 1989
SANGAMO PROPERlY AREA A
Wet t end S8IIIpt ing Date
PARAMETER [1J SAMY-l SAMY.2 SAMII.3
07/20/88 10/11/88 01/19/89 10/11/88 10/11188 01/19/89 01/19/89 10/18/88 10/18/88 10/18/88 01/19/89
Ol.f)t teat. Ol.f)t leate Ol.f)tlute filtered
, f letd Par_ten
pit (I.U.) 7.2 7.5 7.3 7.6 7.6 6.7 6.7 7.0 6.9
Specific concb:t8nCe + 800 81 342 342 336 336 214 180
(U8hOI/C8 8 25 C)
Pell lID lID lID lID NO NO NO NO ,NO
Votatlte Or8anici
Methytene Chtorlde 0.012 . NO NO NO NO 0.005 8 NO NO NO
w Acetone NO NO 0.011, NO NO NO NO NO NO
I
t-'
0 1,2'0Ichtoroethene(tot.t) lID NO II) II) lID NO NO 0.018 0.022
....
'rlchtoroethene lID lID 0.008 . lID lID 0.007 . 0.008 . lID 0.007 8
,.trachtoroethene lID lID 0.006 . lID II) 0.005 . 0.006 . 110 0.001 .
..
'ot.t VOC'I (2) II) II) 0.0110 lID II) 0.012 0.0110 0.018 0.036
Seal'Vot.tlt. Or8anici NO
lnorganici
AtUlI.... 0.730 O. r.i0 0.160
c.tclUl 31.700 30.100 31,.1100
Iron 1.190 1.110 0.140
N . Indicates spite a..ple recovery is not within control limits.
+ . Not corrected to 25 C.
. - Indicatel duplicate analysis is not within control limits.
NO - lIot detected.
11) . Concentration 10 peru per .lItton.
121 . Toul \IOCa detected doea not Include _thylene chloride and
Ketone.
Indjcat~. p8r...t~r w.a detected in ...oci.ted blank.
.
-------
TABlES-4) (cont iooed)
SUMMARY Of PARAMEIERS DEIECIED I. GROUND WAIER
OCIOBER '988 AND JAIlUAJY '989
SANGAMO PROPERI' AREA A
well .... S8IIpling Date
07/20/.
..,- ,
'0117/.
SAMW-2
SAMW' 3
PARAMEIER (1J
01/'9/89
'0/'7/88
'0/'7/88
D~llcat.
0'/'9/89
0'/19/89
D~llc.t.
'0/'8/88
'0/'8/88
D~llcat.
10/18/88
filtered
01/'9/89
lnorell'lle. (eont I~)
....,..Iw.
,.
3.2DO .
3.200 .
3.300
..............
o. '65
o. '53
0.163
5.350
Pota..lw.
4.800
4.720
0.027 .
110
SHyer
0.021 .
6.620
6.520
6.110
Sodlw.
\..oJ Zinc
I
......
~ Oth.re
lotal Alkallnlty(a.CaCO )
0.023 .
liD
110
"ardne8. Ca.CaCO )
'20
500
8.]
'20
'90
8. ,
'50
9.5
'50
1.1
'50
'50
8.7
9.6
18
'5
78
Ch'orlde
200
'0
200
16
340
],
'50
84
420
120
71
130
140
130
100
Sulfate
'60
30
20
]4
150
21
75
25
17
95
24
SulpandId S0' Ida
20
9.4
111 . Concentration In paru per .llIlon.
(2) . Jot.t wx:. detected don not Inctude _thylQf18 ehlorldl and
acatona.
. . Indleat.. par_tar .... detected In ...oclated blll'lk.
II - Indicate. .plke .emple recovery i. not within control limits.
. - Not corrected to 25 c.
. . Indlcat.. duplicate analy.l. I. not within control li.its.
NO - Not detected.
.'1
-------
TABLE 5-44
SUMMARY OF PARAMETERS DETECTED IN HSl ANALYSIS OF WASTE -
SANGAMO PROPERT' AREA I .
PARAMETER I1J
,
PCI. 12)
Aroctor 12'2
Aroctor 1254
Tot.t PCI.
Yot.tlle Orlenle.
Methylene Chtorlde
Aeet-
w Trlehtoroethene
I
w 2-He.enone
.....
.. Tetr.ehtoroethene
Styrene
Trena-I,2-DlehtorOithene
Toluene
Ethylbenzen.
Tot. I Xylene.
SlIIple IlLlllber
_-II
(2.0 . 4.0)
SBSB-2B,1
UST-' Dl
SISB-2I Dl
(2..0 - 4.0)
SISI-) Dl RE
(2.0 - 4.0)
SBSB-2B,)
Dl
SBST'1
58SI'] Dl
(2.0 - 4.0)
Se8I'Yot.tlte Orlenle.
Phenol
'lopIIorone
44 0
11
NO
250
NO
440
110
670
830
'8]0
]1
920
0.710 I NO lID NO 110
2.2 lID NO NO 110
29 IE lID 110 eo 170 eo 8]00 0
5.7 lID NO lID NO
4] IE lID 6]0 eo 910 ID NO
2.] lID NO NO 7100 0
lID lID 100 ID 160 D NO
NO NO 650 ID 960 ID 110
NO NO 180 D 510 0 lID
lID lID ])00 DE 5200 DE 110
56 0
26 0
6.5 0
NO
111 .
"'
8
0,01
t
(onc~nlrilion In parIs ppr .111100 (dry weigh I).
'"0< lor, I ",ro I.e Ihe ""IV Aroclors deleclrO.
..Id"IUS pa,_le. was deletlrd In assoclalrd blank.
. Ollule s"",,le.
(st,metrO valor.
N - Indicates spike sample recovery is not within conlrol I,mils.
NO - lIot detectrd.
RE - Repeat analysis.
S . Indicates valor determinrd by "elhod 01 Starl<.lard Addil'on.
* - Indicates duplicate analysis is not within cpntrol lim,'s.
-------
TAILE ~-44(contlnued)
SUMMARY Of PARAMETER5 DETECTED IN HSL ANALYSIS Of WASTE -
SANGAMO NOPERn AREA I
S8llple Nl8ber
,
PARAMETER I1J
lnor.....lci (cont lnaci)
llagnellUi
........-..
Nlcltet
Pot...IUI
5 II ver
w V8n8dIUi
I
\oJ Zinc
\oJ
. Cy....lde
...21
(2.0 . 4.0)
S851.2I DL
(2.0 . 4.0)
5151-3 DL
(2.0 - 4.0)
5151-3 DL RE
(2.0 - 4.0)
SBSB-2B,3
Dl
5BSB-2B,3
SBn -1
SIST-1 Dl
7410 *
520
11N
77*
3.8
382
110
460 *
1.8 N
].6
20 *
50 N*
233 *N
79*
9.4
lID
(11 . Concentration In pertl per .llllon (dry weight).
1 - Indlc.t.. per_ter ...1 detected In ..Iocl.ted btn.
D,DL . DI'ute 18IIpte.
E . ElU-ted v.tue.
I . Indlc.t.. aplite 18llple recov.ry II not within control
. . Not detected.
RE . Repe.t 81'181)'111.
5 . Indlutel v.lue deter8lned by Method 01 Standard Addi t ion.
. - Indlc.t'l dupllcete 81'181)'11. I, not within control li.its.
1I.1t1.
~---
-------
.
I
T"IU 5-1i4 (CCll'lt 1..-)
SUMMAR' Of PARAMETEIS DETECTED III NSL ANAL'SIS Of WASTE -
SAllGAMO NOPEI" AREA I
SMpI. lIumer
PARAMEIEI
I1J
USI-ZI
(2.0 - 4.0)
S8S1-2I DL
(l.O - 4.0)
SI5I-S DL
(l.O . 4.0)
. 5ISI-S DL IE
(2.0 . 4.0)
SISI-ll,S
DL
SBSI-2B,S
SIST.- I
58ST-1 Dl
,
S_I-Vot.tlte Orpnlc:a (cont.)
DI-n-Iutytphth.t.te
4080
5.3 BO
luty'benly'phth.t.te
bll(l-Ethy'he.y') Phth.'.te
22 0
J6BD
lID
110
1,l-Dlchtorobenlene
NO
.7.9 D
lenlolc Acid
lID
66D
1,2,4-Irlch'orobenlen8
lID
9.8 D
W
I
W
IV
Inor'8nlca
A'I8I...
711,0 21000
lID 0.98 .
6.1, 1,2
1.8 II 9.1,
243000 . 9900
33 II 52 .
12 II 20 .
7550 19000 .
208 N 202 S'
Arlenlc
" larll8
C8dII118
C.'cll8
ChrG8118
Copper
Iron
lud
(1)-
I .
D,Dl
f
II
Concentration In perts per .illion (dry weight).
Indlc.t" per_ter w.. detected In ...ocl.ted blenk.
Dilute l8lllple.
- fit I_ted v.toe.
. Indlcltel Iplke l8lllple recovery II not within
control I lain.
lID - Not detected.
RE . Repe.t .nelysis.
S - Indic.te. vlloe deteralned by Method of Standard Addition.
. - Indlc.te. dupllclte enelYII. is no~ within control limits.
. - Indlclte. the correl.tlon coefficient for meth3d 01 standard
eddltlon I. 'esl then 0.995.
-------
TABLE 5-45
SUMMAly OF PARAMETERS DETECTED IN MSL ANALYSIS
OF UPGRADIENT SURFACE SOILS -
SANGAMO PROPERTY AREA 8
S~Le N~r
PARAMETER [11
saSS.1
5855-' DL
PClI [2]
ArocLor 1254
5.5
VoLltile Or,anics
I ron
0.013 .
0.063
lID
I 40,700
I 2.1 $II
I 56
I 1520 *
19 II
14
I 37 II
I 23,700
I 31 II
1180 *
517 II
15
989
145 *
aa *11
Methylene Chloride
ACltone
5..i'Volatile Organics
lnor,anics
Alllllirun
Arsenic
Bar i III
Calci...
ChrCl8i...
C0b8lt
CQf:lPlr
LI8cI
Me... i...
Manganese
lIickel
Pot...i...
V8II8di ...
Zinc
(1] . Concentration In parts per .illion (dry ~Itht).
[2] - Aroclors lilted are thl only Aroclors detected.
8 . Indicat.. par_tad detected in ..sociatad blank.
DL . Dilute I88Pll.
N . Indlcat.. soike s-.pll recovery is not within control li.its.
110 . lIot detectlCl.
S . Indicatn -"'.'" detlr8inld by Method of Standard Addition.
* . Indicat.. .~Licate analysil il not within control ll.its.
3-58
-
.
-------
"
"
JABLE 5-46(cCJr;It IRIed)
PCB., VOlATILES ANO SEMI-VOlATILE COMPOUNDS DETECTED 1M SURfACE SOILS'
SAIIGNIO paopu" MEA I
S~le MUliber
PMAlEna (1J SBSS.8 SlSS.9 SBSS-10 5155-11 5855-12 SBSs-13 SBSS.14 S8SS-1~ 5155.16
PCI. (2)
. Aroc:lor 1248 1S 150 20 ]10 2.5 8 150 5.1 0.920
Aroc:lor 1254 . 82 13 NO 2.1 4.5 55 11 1.1
Totel PCI. 13 2]2 ]] ]10 4.6 12.5 205 16.1 2.62
Yoletlle Or88"lc.
Methyl... Chloride 0.015 0.0]] 0.010 0.018 MD 0.019 B 0.011 B 0.008 8 . 0.022
Acet- MD . . 0.045 . . 0.054 I NO 110
w Chlorofo,.. . MD . 0.016 . 110 NO 110 0.011
I
CJ\ Trlchtoroethene NO . . . . 110 110 NO lID
o
T.trechloroeth... . . NO 110 . 110 . 110 lID
Ir08Odlchlor088thene lID . 110 '110 . NO MD 110 lID
. s..I.Yolatli. Organic. NO 110 110 110 . 110 lID lID NO
(1) . Concentration In pert. per .IIIlon (dry weight).
(2) . Aroclor. II.ted ar. the only Aroclora detected.
I . Indlcat.. per_t.r ..a. detected In a..oclated blank.
110 . lot detected.
-------
TAllE 5-47
PCI COIICEIiTIUTIONS DETECTED III SU8SU1FACE SOilS.
SAIIGAMO PROPERTY AREA 8
Par_ter [2)
SAI4PlE NUM8ER [1 ) Aroclor 1242 Aroclor 1210l Aroclor 1254 Total PCBs
5858' 1 (4.0' 6;0) 110 16 110 16
5858' 1A (4.0' 6.0) lID 1.4 110 1.4
58$8,18 (4.0' 6.0) 110 lID lID NO
5851'21 (6.0' 8.0) II) lID 18 18
5858'28 (8.0' 10.0) 19 lID 61 80
5858.28 (8.0 . 10.0) IE 110 lID liD NO
5858.28 (8.0' 10.0) Ol 25 0 lID 14 D 99
58""2 (0.0' 1.5) [31 lID lID 16 16
58...2 (0.0' 1.5) 110 1.3 0.44 1.14
Duplicate
5....2 (1.5' 3.0) lID 13 3.3 16.3
[1] . Conc8l'ltratlon In perts per 81 U Ion (dry wight).
[2] . Aroclora lltted are the only Aroclors detected.
[3] . $"", 88IIPied et 8Or'Iitortng wll location.
O,Dl . Dilute ..-ple.
110 . lIot detected.
IE . Repeat InIlytl..
-
3-62
-------
TABLE 5-48
SUMMARY OF PARAMETERS OETECTEO IN
HSL ANALYSIS OF SUBSURFACE SOILS'
SANGAMO PROPERTY AREA I
PARAIIETER (1]
I
I
I
I
I
I
I
I
I
I
I
I
I
bil(2-Ethylhexyl) Phthll~te I
I
I
I
I
I
PCBs (2]
Aroclor 121,2
Aroclor 1254
Totll PCBs
Volltile.Orilnicl
Semi-Volltile Organici
1.2-0ichloroblnzene
'.2,4-TriChlorobinzene
Oi-n'Butylphthallte
lnorganici
AIUlli,.,.
Arlenic
BariUII
Beryll iUII
CalclUII
ChrCIIIIII.8
Cobilt
C~r
Iron
Leld
Mqnes I &II
Mang....
Nlcleel
PotUliUII
VanldiUII
Zinc
s...,18 NYli;)er
SBSB.2B SBSB'2B RE SBSB'2B OL
(8.0 . 10_0) (8.0 . 10.0) (8.0 . 10.0)
19 25 0
61 74 0
SO 990
110 110
0.570
1.2
0.550 .
0.700 I
36,200
89$11
116
1.9
11,100 .
43 II
46
202 II .
116,000
20N
5760 .
767 II
29
3310
578 .
109 N.
(11 . Concentration In pertl per million (dry Meight).
(21 . .roclorl llltld Ire the only .roclorl detected.
B . Indlcat.. per_ter was also flUId in usociated blri.
O,OL - Oilute ..-ple.
N . Indicat.. 'Pilee l8IPle recovery il not within control li.itl. .
110 . Not detected.
RE . Repeat analysis.
S . Indicat.. value deurllined by Method of Stend8rd Addition.
. . Indicat.. dUplicate analysis il not within control ll.ltl.
3-63
-------
tABLE 5-49
SUMMARY Of PARAMEtERS DEtECtED IN GROUND WAtER
OCtOBER 1988 AIID JANUARY. 1989
SAIIGMO NOPER" AREA 8
Wel I end SlIIIpl'", Dete
. II1II- 1 SBHW.2 S/IfII'3 '
PARAMEtER 11)
10/1]/88 1/11/89 10/1]/88 10/13/88 10/1]/88 1/18/89 1/18/89 10/1]/88 10/13/88 10/1)/88 1/18/89
Non- filtered Dt Filtered D~I Icete Ol D~Ucete
field Per_ten
pi! (I.U.) 7.4 7.1 5.7 5.3 5.3 6.3 6.1
Specific Ccnb:tence 264 336 f6 106 106 J5 36
(UillOI/Cil a 25 C)
PCII 12)
Aroclor 1242 lID lID lID 0.0023 0.003 lID NO lID
voletlle Organici
Methylene Chloride lID lID 2.0 8Ł 6.68) lID lID 9.5 BE 13.0 80 0.008"8 lID
w Acet- lID lID 0.10 lID lID lID lID NO 0.024 NO
~- 1,2'Dtchloroethene (totel) lID II» 0.210 II» II» II» II» 0.550 D NO II»
o
..... 1,1,1.trlchloroethene 0.008 lID 0.076 II» II» II» II» NO II» lID
Irtchloroethane II» II» 2.90 E 3.6 0 7.108 7.38 II» NO NO 0.008 .
letrachloroethane II» lID 19.0 E 300 70.00 8 70.00' II» lID 0.009 0.025 .
lotel VOCI IJJ 0.008 II» n.886 77.10 77.30 NO 0.009 0.0]]
s..I'Voiettie Orgentci lID lID II»
i .
I
111 . Concentretlon In parts per .llllon.
121 . Aroclorl listed are the only Aroclors detected.
UI . loul detected VOCI does not Include _thylene chloride end ecetone
concentrations. In cases where per_ter concentrations were qualified
Wllh en MEM (e.tl.-ted value). the concentretlon of the dilute llIIIple
.... .LbSIlluled 'or Ihe elli_ted v.lue in order to calculete tot.I VOCs.
B . Indlcetel par_ter ...s detected
O,Ol . Dtlute I~Ie.
E . Est I_ted value.
NO . Not detected.
In associated blenk.
-------
'ABLE 5-49 (cont lnued)
SUMMARY Of PARAHE'ER5.DE'EC'ED IN GROUND WA'ER
OC'OBER 1988 AND JANUARY 1989
SMGAHO PtOPf." AREA I
Wen If1d 58111ptt ng D.te
5....,.1 5""-2 511M11-3
PARAMETER (1J 10/13/88
10/13/88 1118189 10/13/88 10/13/88 1118/89 1/18/89 10/13/88 10/13/88 10/13/88 1/18/89
Ion"II tered DL filtered Dupllc.te DL Dupllc.te
tfIorg8nICl
'.r h.. 0.110 110
C.lch.. 6.30 . 1. 600 .
Cabelt 0.181 81)
Iron 3.410'. 81)
M.gne.1 UII 2.60 110
Mengenese 2.540 81)
Pot... lUll 3.350 110
SodlUII 7.760 2.250
Zinc 0.025 . 110
Oth.r
..
'ot.I Alk.llnlty C., C.C03) 120 130 34 23 24 16 19 17
Chloride 1.6 2.8 10 12 13 1.8 1.1, 8.0
H.rdne.s .s CCeC03) 160 110 58 50 53 39 50 19
suspended Sot tda 130 86 10 710 900 71 ]60 18
Sui f.t. 39 100 t3 6.8 6.3 8.9 9.2 3.1,
111 . Concentr.tlon In perts per .IIIlon.
D,DL . Dilute s8lllpl..
. . Indlc.tes spike s8IIIpi. recovery Is not within control tl.lts.
NO . Not detected.'
. . Indlcet.. dupllcete analysll II not within control 11.ltl.
-------
I..LE 5-5U
-..1 01 '''_IUS DIIICIfD ,. .51 AllAlYSIS 01 WASIl'
~ "11'(1" AI(A C
1_'8 ......,
'..Mllfl '" SCI8-11 scse-I' I' SCSl-" SCSI-" I' SCSl-" D1. SCSl-6( 01 II SCSl-l SCSl-l I. SCSI- J SCSI-4 SCSI.',',4 SCSl-l,',4
C4.0 - 6_0) C4.' - .... CO.O . l.O) CO.O . l.O) CO.O - l.O) CO.O - l.O, DI.
KI. III
',aclor 114l _,lIDO 49,IlOO 80 III
',aclor 1248 III III 10,0lIO 19. OlIO
.,oclor In4 III III Sloo 80
10..1 'CII -,lIDO 49. OlIO lS ,100 19. OlIO
vol.. II. Or.-lea
",,",1- Clllori. 0.1" O_lID . 0.007 I 0.025' III 110 110 110
I, I. 1-I,lelllor08.II- III III 0.011 0.017 III III III 0.007
'-I 0.017 0.014 0.016 0.026 0.008 I O.D4l I
. Irlelllo'-1"- 0.009 I 0.026 I
'-I
0\ ac..- 0.910 ( 9.J I( 110 III 0.021 110 0.100 110
1..,.1110'_111- 0.06' 0.110 0.011 0.021 80 III III 110
len.- 110 0.01\ III 110 . III iii III
101.- 0.008 0.018 110 80 110 III III 110
CIIlor_- 0.01\ 0.019 III 110 110 110 III 110
C.,bon II hul ". III O.OS' III III III III III III
l....1- O.OU III III III III III III III
_'-'''1..11. Or..,lea III 80
110 . .01 .IOCIed.
I. . 1_.1 _1,.1..
5 - 'NlIUI.. w.I.. ..a,ol- .. "'I!IocI 01 SI...,d _I' ion.
III - Coneen.,..I... In """ pi' 01111... Celt, ...."'".
III - A'oclorl III.ed .... Iha onl Y ',oclorl .Iocled-
. . INlle."1 par_'a, -I .Iocled In ...ocl..ed 8>lri.
. . .Nllul.. apn. ._Ia ,oc_" II 1101 ,,""In eonl,ol
li.hl.
-------
"
IAiLE S-SQonllnuodl
~, Of PAINlUUS DliECIEO ,. .51 HAIISU Of IIASIE .
SAIIGAIIO PlClPEI" AlEA C
PAlMI lEI 111
SCSI, IE
(4.0 - '.01
SCSI-II II
C4.0 . '.0)
SCSI.6( Dl IE
(D.O' 2.01
Ino,....lu
Ah_l....
Ar.enlc
'0' I..
Col c I..
Ch,_I..
C_II
W C_,
I
W I,on
-.J
l..d
....,..1..
.....-..
litre.",
Ilck.1
Pol... I..
wlNdl..
line
SCSl-6(
CO.O - 2.01
21,000
12.
S26
4110
".
II
n.
68,500
U
44J
,"
0.096
'.7
'120
IUI
9S
III - Conu"trOllon In po'u pi' .111 Ion (dry ...Ith".
. - Indlul.. po,_I.. -. deUCled In ...ocilled bl_.
. . Indlul.. .p"~ ._1. 'oc"".', I. nol ..lIhln conl,ol 11.1...
SCSI-' SCSI.4 SCSI-2,J,4 SCSl'2,J,4
DI
8',700
71 511
48
IU.
2211
ID
SH II
52,GOO
168 .
JS4 .
JJ9 .
lID
60
1J8D
141 .
16S .11
5_1. -,
SCSl.6( IE
,(0.. . 2.01
.J'.
SCSl.6( DI
(0.0 - 2.01
SCSI.2
SCSI.2 IE
lID . 1101 delecled.
I( . lope81 _I,....
5 . Ind;ul.. ..01.. del.,.I- by ""Ihod .
.
Stand8rd Add.. Ion.
-------
TAiLE 5-51
SUMMARY OF PARAMETERS D~TECTED IN HSL ANALYSIS
OF THE uPGRADIENT SURFACE SOIL.
SANGAMO PROPERTY AREA C
SAMPLE NUMBER
PARAMETER [11
SCSS.1
PCBs (21
Aroclor 1242
4.6
volatiliorganici
NO
S..i'YolatllIOrganicl
NO
Saril.8
I
'1
I
I
39,1SOO
17 .
I norgani CI
All.8l....
Arlenic
Calcll.8
43
447
CIIrC811.8
26.
Cobelt
8.5
Copper
18 .
Iron
36,900
Lied
III..,.. I 1.8 .
18
"5
M8ngann1
644
0.22
Mercury
. ..1 ckl~
Pot... I 1.8
4.2
633
vanectll.8
Zinc
".
21
(1] . Concentrltlon In P8rtl .-r .Hlfon (dry _lgtlU.
tZJ . Arac~ors lilted arl thl on~y Aroc~orl .t8Cted.
. . Indlcat.. splka IlIIpll r8COĄII'Y il not within control
lID . .ot .tected.
ll.itl.
3-65
-------
TABLE 5-52
PCI CONCENTRATIONS DETECTED IN SURFACE SOILS.
SANGAMQ PROPERTY AREA C
I PARAMETER [2]
SAMPLE NI.I4BER [1] I Aroclor 1242 Aroclor 1248 Arorlor 1254 Total PCBs
SCSS' 1 I 4.6 NO NO 1,.6
SCSS.2 I NO NO J.7 3.7
SCSS.] I NO 110 1.1 1.1
SCSS.] I NO 0.340 1.34
O~l iCIU I
SCSS'4 I NO NO NO ND
SCSS.5 I NO 67 NO 67
SCSS'6 I NO NO 1.2 1.2
sess.7 I 11,000 NO 110 '1,000
sess.s I NO 540 NO 540
sess.9 I 110 56 50 106
sesS.10 I NO 1.9 3.6 5.5
sess.11 I 110 1080 ]20 800
sess.12 I NO 220 130 ]50
seSS.1] I 110 550 110 550
SCSS.14 I NO 42 6.4 1.8.(,
sess.15 I NO 1.1 1.3 2.4
scss- 16 I 110 NO 0.210 0.210
SCSS-17 I 110 21 1] 34
[1J - Canc8ntl'8ctan In perta per .HUon
-------
TAillE 5-53
PCB CONCENTRATIONS DETECTED IN SUBSURFACE SOilS.
SANGAMO PROPERTY AREA C
I PARAMETER <21
SAMPLE Nt.IISER (1) I Aroclor 1242 Aroclor 1241 Aroclor 1254. To~..l PCBs
I
SCSS-'D (4.0 - 6.0) I 110 200 14 21(,
I
SC5S-'E (8.0' 9.5) I 90 lID lID 90
5C5S"E (10.0' 11.5) I 35 NO lID 35
SC5S.2 (4.0 - 6.0) I 10 NO lID 10
5C5S.3 (4.0' 6.0) I 0.047 lID 110 0.0{,7
5C5S.4T (4.8' 6.8) I 110 6400 lID 6"00
5C5S.4T (6.8 - 8.8) I 1.3 lID 0.120 1.(,2
5C5S.5T (3.5' 4.0) I lID 4500 3300 7800
5CSS-5T (5.0' 6.5) I lID 15 5.8 20.8
SCsa-5T (5.0' 6.5) Ol I lID 32 NO 32
SCSI.5A (5.0 - 6.5) I lID 7400 6700 14,100
scsa-5A (T.5' 9.0) I 2.3 II) 1.6 3.9
SCSI'6 (4.0 - 6.0) I 0.250 II) lID 0.250
SCSI-6T(3.5'5.0) I NO 33,000 NO 33,000
SCSS.6T (6.0 - 7.5) I lID 24,000 NO 24,000
SCSI.6T (6.0' 7.5) -I NO 6400 lID 6"00
Ol4Jli cate
SCSI-6A (4.0 - 6.0) I lID lID NO NO
SCS8-6I (4.0 - 6.0) 0.920 lID lID 0.920
scsa-6C (5.0' 6.5) 320 II) III 320
SCSI'6C <7.5' 9.0) 4000 II) 570 (,570
SCS8.n (7.0' 8.5) 9300 II) lID 9300
. scsa.n ('.5' 11.0) 900 II) 110 900
S.,...5 CO.5' 2.0) [3] 0.490 lID 1.2 1.69
S.,...5 (2.0' 3.5) NO NO 0.930 0.930
SCM\0'8.5 (0.5. 2.0) 0.360 lID 0.770 1.13
Ol4JlI cete
SCST.1 NO II) 3000 3190 [t.)
[1] . Concentration In pertl per .illion (dry weight).
[2] . Aroctors lilted are the only Aroclorl detected.
[3] - SCMWI'I 1..led at 80ni toring well locatiON.
[4] . Totat Pel concentretlon In 5CST.1 inclYdes 190 pp8 of Aroctor 1260.
S..le SCST-1 II the only IlIIIple in whidl Aroclor 1260 ..as detected.
NO - Not detected.
3-67
-------
TABLE 5-54
SUMMARy OF PARAMETERS DETECTED IN
NSL ANALYSIS OF SU8SURFACE SOILS'
SANGAMQ PROPERTY AREA C
I S~le N~r
I
PARAMETER (1) I SCS8.5 SCS8.5 DL SCS8.5A SCST.' $CST" OL
(5.0 . 6.S) (5.0. 6.5) (7.5' 9.0)
PCBs (2) I
Aroclor 12(,2 I 5.8 110 1.6 lID NO
Aroclor 12lo8 I 15 32 NO lID NO
Aroclor 1254 I lID lID 2.3 3000 4500
Aroclor 1260 I 110 110 110 190 NO
Tot.1 PCBs I 20.8 32 3.9 3190 '500
I
Pesticide Organics I NO NO ND lID NO
Yol.tll. Organics I
Methylene Chloride I 110 0.015 . lID
.- I
Acetone 0.058 lID II)
Trlchloroethene I II) lID 0.013 .
I
S.-i'Yolltlle Organics I lID lID lID
lnorganics I
Aluainul I 55,200 76,400 59, 100
Arsenic I 55. 40. 54.
Beril8 I 1" 129 40
[1J . Concentr.tion In pertl per .IUlon (dry wight).
[2] . Aroclors ll.ted .... eM only Aroclora detKt8cl.
. . Indicates per_ter ... Il80 f~ In ..socleUd bln.
DL . Dilute -.te.
E . Enl88ted VIIlue.
N . Indlca- spike ....,le recowry II not ..ithin control \I.lu.
110 . lIot detected.
RE . RepI8t enalyall.
. . Indlcat.. duplicate enalysls II not "I thin control 11.lts.
3-68
-------
TABLE 5-54 (cont irued)
SUMMARY OF PARAMETERS DETECTED IN
HSl ANALYSIS OF SUBSURFACE SOilS'
SANGAMQ PROPERTY AREA C
I S.., le N ""*»r
I
PARAMETER [1J I SCSB.5 SCSI.5 Dl SCS8'''A SCST.1 SCST.1 Ol
(5.0 . 6.5) (5.0' 6.5) <7.5' /jI.O)
lnorganics (conttrued) I
C.lciu. I 2170 * 52 110 *
ChrQ8iu. I 5.8 N 9.3 II 6.9 II
C0b8lt I 32 5.9 10
Ccq)8r I 1211 2311 21 II
Iron I 21,800 36,600 39,600
leed I 3411 14 15 II
Magnesiu. I 585 * 508 388 *
M...wl. I 516 II 85 304 II
M.rcury I lID 0.062 II)
IIlck.l I 12 12 8.9
Pot...iu.. I 1120 1150 929
V8n8dlu. 42 * "I 81 *
Zinc 28 *11 28 21 *11
[1) . Concentration In parts par 81Ulan (dry wlghU.
8 . Indlcat.. pa....t... ... also f~ In 18socl.ted blank.
DL . Dlluta I8IIPl..
E . htt8ted Y8h..
. . Indlcat.. .,.It. I8IIPl. recovery II not vlttlln cantrol lI8lts.
. . lot .tacted.
. . "",t ..lysll.
. . Indlcat.. duplicate In8lysl. is not vlthln control \18It..
3-69
-------
TAILE S-55
SUMMAR' Of PARAME'ERS DETECTED IN GROUND WATER
OCTOBEI 1988 ANO JAIIUAR' 1989
SANGAMO PIOPER" AREAS C,O,f,G AND "
wel I 8nd S8llpllng Olte
SO..,., $0"'-2 SDI1\I. J
PARAMETU (1)
10/20/88 10/20188 10/20/88 10120/88 01111/89 01/18/89 10120/88 01117189 10120/88 10120/88 01/11/19 01/17/119
DL Oupllclt. Dupllnt. OL Ol Ol Ol
fl.ld Plr_ten
pH (I.U.) 5.7 5.7 5.1 5.6 5.2 5.4 5.1
Specific con4Ictenc. 47 47 ;' 49 59 49 1011 1011
(-08/ca 8 25 C)
Pcal (2)
Aroclor 1242 NO NO NO lID NO NO 110
Volltll. Organici
Methvlene Chloride 0.007 I 6.1 ID 0.00II I 4.5 ID lID ~ 0.026 . 110 0.550 I 11.00 SO NO NO
Acetone lID NO lID lID lID lID NO lID NO NO NO 110
W
I 1,1'DIchiorOithene 0.390 E NO 0.430 E NO lID lID NO lID NO 110 NO 4.1,,0 0
.....
.....
0 1,1'DlchlorOithene 0.160 NO 0.110 NO NO lID lID lID lID NO NO NO
1,2-DlchiorOithene (tot.I) 1.9 E NO 2.1 E NO 1.50 lID NO lID 1.80 NO 1.20 110
Chlorofol'll 0.007 lID 0.00II NO NO lID lID lID NO NO NO lID
1,I,I"rlchlor08thene 3.7 E NO 4.2 E NO 2.70 NO NO NO 3.40 lID 1. 70 NO
Tr IchI orOithene l1E 39.0 D 13E 30.00 0 83.00 E 15.00 D 0.210 12.00 82.00 E 71.00 D 88.00 E 15.00 0
lenzene 0.006 NO 0.007 NO lID lID lID lID NO NO NO NO
,.trechiorOithene 5.3 E 6.10 D 6.2 E. 4.2 D 7.00 1.50 0 0.1)76 4.50 21.00 E 111.00 0 8.90 lID
'otll \IOCs (]J 45.273 34.395 26.20 0.356 16.50 90.80 J1.20
(1) . Concentrltlon In parts per .IIIlon.
12) - Aroclors listed are the onlV Aroclors detected.
UI . 'otll detected \IOCs does not Include Mthvlene chtorlde or acetone
concentratl0n8. In c8les where par_ter concentratl0n8 were qualified
with en -E- (eltl..ted vllue), the concentrltlon of the diluted l.-ple
wel .ubstltuted for Ihe eltl..ted value In order to calculate total YOCs.
. - Indlcltel par88eter WII detected in Issocilted blank.
O,Ol . Dilute l.-ple.
E - E..I..ted value.
N - Indicates spike s.-ple recovery is not within control limits.
NO . Not detected.
. - Indiclte. duplicate analysis is nol within control li.its.
-------
1-
,.
TAIlE 5-i 5(cont l.-.,ed)
~, Of PARAMETE.S DETECTED IN GROUND WATER
OC:TOIE. 1988 AIID JANUAR' 1989
SANGAMO PROPE.T' AREAS C,D,f,G AND "
Wel I IOd SIq)I log Date
SO""-4 SOII-5 Sf""-6 SGM\I.7
PARAMETE. I1J
10/20/. 10/20/88 01/11/89 01/11/89 10/20/88 01/17/89 10/19/88 01/18/89 10/19/88 10/19188 01/1'8/89 01/18/89
. DL Dl Ol DL
field 'ar_ten
pit (..u.) 9.7 1.4 5.7 5.4 6.9 6.5 6.9 5.2
Spec: I flc concU:tance 444 324 62 60 278 189 278 "6
(Uillos/C8 8 2S C)
PCI. (21
Aroclor 1242 lID lID 0.0075 0.0058 NO 110 NO NO
Volatile Organic.
Methylene Chloride 5.60 I 8.80 ID lID lID lID lID 0.009 I NO 0.006 I 0.14 BD NO NO
""" Acetone lID lID lID lID II) II) 110 NO NO NO NO
I NO
......
...... 1,I-Dlchloroethene lID lID 0.35 lID lID II) .IID lID lID lID NO NO
IV
1,I-Dlcbloroetbene lID lID lID lID lID lID II) lID lID lID NO NO
- 1,2.Dlcbloroethene (total) lID lID 1.00 lID lID lID 0.150 0.19 0.012 lID NO NO
Chloro'or'll lID lID lID lID lID lID II) lID 810 e;:. NO NO
1,1,I.Trlcbloroethene 4.90 lID 0.69 lID 0.075 D 0.140 lID lID NO NO NO NO
Trlchloroethene 110.00 E 16.0f' D. 63.00 E 8.30 0 0.470 0 1.100 0.059 0.050 0.750 E 0.5]0 0 1.60 E 0.270 0
lenzene II) lID lID lID lID lID NO lID lID NO NO NO
Tetrachloroethene 16.00 lID 1.80, lID 0.100 D 0.190 0.041 0.028 0.064 lID 0.06] NO
Total VOC. (31 39.90 12.14 0.645 0 1.43 0.250 0.268 0.606 o.]})
(11 - Concentnt Ion In peru per .lIlIon. 8 - Indicetes parameter was detected in associated blank.
(21 - Aroclorl Itlted are the only Aroclorl detected. E - ElttMated value.
131 . Total detected VOCI doel not Include Mthylene chloride or acetone D,Dl . Dilute IMple.
concentrat lonl. In caUl where per_ter concentnt Ions were ""II f led lID . Not detected.
..ith an "E" (utiMated yalue),. the concentration of the diluted s8lllple
..a. substituted for the estl..red value in order ro calculate roral VOCs.
"--
....
-------
TAilE ~-~~(contl..-d)
SUMMARY OF PARAMETERS DETECTED IN GROUND YATER
OCTOBER 1988 AND JANUARY 1989
SANtAMO PIOPERTY AREAS C.D.F.G AND "
We" 8nd SlIIpling Date
SIiIII-8 S1i111-9 5"",,-10
PARMETER (1J
10/19/88 01/18/89 01/18/89 10/19/88- 01/18/89 10/19/88 01/16/89 01/16/89
D""lleete Dl
. Field Par_ter.
pH (..u.) 6.0 6.Z 6.2 6.1 6.2 5.6 5.4
Spec If I c concU:tence 153 183 183 177 198 71 96
(UlhO'/C8 at 25 ()
PC8. (2)
Aroclor 1242 .. .. .. ND ND .. ..
w Volatile Organics
I
.-- Methylene Chloride D.09O I NO " 0.086 . ND 5.80 I ..
.-- NO
....
Acetone NO o.on .. NO ND .. .. 110
1.1-Dlchloroethene ND " " NO .. .. .. ..
1.1-Dlchloroethane .. .. NO .. .. .. NO NO
.. 1.2.Dlchloroethene (total) NO .. .. .. .. .. 0.017 ..
(htoro'o", NO " " .. .. .. .. 110
'. '. 1-Trlchloroethane .. .. NO 0.056 " .. 0.065 NO
Trlchtoroethene 0.310 0.090 " 0.640 0.160 14.00 19.00 E 14.00 D
lenl... lID " " NO .. .. .. NO
T.trechlorotthene 0.057 " " 0.00 " 4.40 1Z.oo E 2.70 D
Total we. (J) 0.367 0.090 " 0.826 O. T60 18.40 16.782
(II . Concentration In pert. per .llllon. . - Indicate. per_ter wa. detected In associated blank.
121 - .roclor. II.ted are the only .roclor. detected. D.Dl . Dilute '8qlle.
111 . '0181 det.cted \IOC. dIM. not Include _thyl- chloride or acetone E - Estl.ted value.
concentrat 1_. In use. where per_t.r concentrat 1- were cp.J81 i f ied NO - Not detected.
wirh an 8(- (..ti.red value). the concentration of the diluted '8qlle
w.. .ubstltut~ for th. ..tl..t~ value In order to calculate total VOCs.
-------
,
TAilE 5-56
sUMMARY OF PARAMETER~ DETECTED IN
HSL ANALYSIS OF WASTE -
SANGAMO PRoPERTY AREA D
I 5~le NUl'Cer
PARAMETER [1] I
$058,1 $058-1 DL ~iS..-1 DL RE SOSS-7 505S-70L
I Surface Surface Surface <2.0 . 2.8) <2.0,2.8)
PCBs [2] I
Aroclor 1016 I 5800 110,000 0
Aroclor 1254 I 72,000 110
Total Pel. I T7,&OO "0,000 0
Pesticide Organic. I 110
I
Volatile Organic. .1
Methylane Chloride I 110 NO 17 8 NO
Acetone I 260 I 110 5200 BE 26,000 8
',1,1'Trichloroethane I 14 lID NO lID
Trichloroethane I 4500 IE 5900 . 12,000 BE 120,000 8
Tetrachloroethane I 12 lID ZlO NO
S..i.Volatlle Organic. I lID lID
I
Inorganic. I
AIUll,... I 147,000
Ar.enlc 140 $II
SarlUi 60
Saryll IUI. 1.1
CalciUl 331 e
ChrC8iUl SOl
[1] . CclnC8ntration in partS par .HUon (dry _i"'U.
[2] . Aroclon II.ted ara me only Aroclor. detected.
S . Indlcat.. par_tar... detected In ...ociated blank.
D,Dl . Dlluta '8IpIa.
E . E.ti..ted value.
II . Indicat.. spika S8Ipla recovery i. not III thin control l i.iu.
II) - lIot detected.
RE . ...t 8NlIVSI..
S . Indicat.. value deta...inad by Method of Standard Addition.
. . Indicat.. duplicata enalyai. i. not IIithin control li.it..
3-41
-
.
-------
TAllE 5-56(contirued)
SUMMARY OF PARAMETERS OETECTED III
HSl ANALYSIS OF WASTE'
SAIIGAMQ PROPERTY AREA 0
5~le NurCer
PARAMETER
(1]
5OSI.'
Surface
5OSI-' Dl
Surhee
5058" Dl PE
Surface
5DS8.7 Ol
(2.0.2.8)
Cobalt
9.4
lnorganics (continued)
C~r
Iron
lead
.....,.. i loll
~se
lIickel
Pot..s I loll
V8Ndlloll
Zinc
6011
82 ,600
3811
193 *
329 II
]I.
1420
204 *
59 *11
[1] . Concentration In paru per .Il I Ion (dry wight).
8 . Indlcat.. per_ter lID detected In ..soclated blank.
Dl . Dilute 8.-ple.
E . Estl_ted value.
II . Indlcat.. aplke I88Ple recovery Is not IIlthln control 1I.lta.
ND . Mot detected.
RE . Repeat _lysis.
S . Indlcat.. value detel'llined by Method of Standard Addition.
. . Indlcat.. duplicate _lysla I. not III thin control ll.lta.
3-42
-
.
5058.7
(2.0 - 2.8)
-------
TAILE 5-57 .
SUMMART OF PARAMETERS DETECTED IN NSL ANALTSIS
OF UPGRADIENT SURFACE SOILS'
SANGAMQ PROPERTT AlEA D
S~l. Mum-I'
PARAMETER [1]
soss. ,
SOSS., DL
PCBs [2]
Aroclor 12'2
3.0
0.750
Aroclor 1254
Toul PCBI
3.750
Volatile Organici
Methylene Chloride
0.001 I
Semi'Volatile Organics
NO
I norganiCI
A 1",1,..
43,000
19 .
Arlenic
lari",
32
154
CIIlcl",
OU'08I",
13 .
C~r
24 .
Iron
28,000 .
Lied
10 S
200
M..,.. I '"
........
14 .
Pot...I'"
340 .
VIn8dIUi
81 II.
Zl~
20 .
[1] . Concentration In perts per .HUon (dry wight>.
[2] . Arodol'S I iated al'l thl only Aroclol'S .tected.
. . Indlcat.. per_ted .tected In 88aocllted bln.
DL . Dilutl Il8pll.
N . Indlcat.. splkl I81Pll recovery II not within control Ii.its.
110 . Mot .tected.
S . Indlcat.. value .te,..Ined ~ Method of Standlrd Addi tion.
. . Indlcat.. duplicate anelysll II not within ~ontrol II.itl.
3-71
-
.
-------
. .
TABLE 5-58
PCBs AND VOlATILE ORGANICS DETECrfO IN SURfACE SOILS
SUGAMO p.OPun ARE' D
S-.te NUliber
PARAMETE. (1J SOSS-2 SOSS-] SOSS.3IIE SOSS-4 SOSS-5 SOSS-6 SOSS-7 SOSS - 8 SOSS-9 SOSS-10 SOSS-11 5OSS-12 soss- 1)
PCls 12)
.
Aroetor 1248 77.0 190.0 170.0 1.9 200.0 230.0 2.4 2.8 ]9 550 4.6 1.5
Aroetor 1252 20.0 II) 69.0 3.8 II) 49.0 1.6 6.7 4.4 460 4 .
Aroelor 1254 . . . . II) . lID . . 110 110 .
'otet PCI. 97.0 190.0 239.0 5.7 200.0 279.0 4.0 9.5 43.4 1010 8.6 1.5
Votettte Orlenle.
..... Methytene Chtorlde 0.014 0.010 0.007 . 0.0J7 0.044 0.082 0.0341 0.028 0.026 I 0.023 0.230 0.046 I
I
......
IV Acetone . . . 0.017 0.063 0.052 0.080 lID 0.091 . 0.140 lID NO
'r lehtoroethene lID . . 0.030 lID 0.011 0.091 NO lID . lID NO NO
'etrechtorOithene . lID . . . 0.055 0.016 lID . . lID 110 110
Ethyt benzene . II) . . . . 110 110 . II) 110 NO .
. 1.1.1-'rtehtoroethene . II) . . . . . . 110 . 110 110 .
I .
(11 - Concentration In parts per _lllion (dry weight).
(2) - Aroetor. listed .re the only Aroelor. detected.
I - Indicates par_ter ...s detected In essoeleted blenk.
E - Est I..ted value.
lID . lIot det.cted.
RE . R.pea' analysis.
-------
TABLE 5-58(cont looed)
PCI. AND VOlATILE ORGANICS DETECTED II SURFACE SOILS
SAlGAMO NOPEI" AREA D
SlIIIpt e lUiber
. PAiAMETEI m SOS.-14 _-15 SDSS-16 SDSS-17 SDSS-18 SDSS-19 SDSS-20 SDSS-21 1055-21 1055-22 SOS5-23 SDSS-24 1011-25 SD5S.26
o~t Icate
PCI. (2)
Aroctor 1248 39 0.71 2.1 2.6 38.0 0.51 10 82.0 110.0 66.0 1.0 820.0 10 10
Aroctor 1252 10 II) II) NO NO 10 10 10 10 10 10 lID 10 10
Aroclor 1254 10 0.56 10. 0.61 46.0 10 10 10 10 10 0.43 110 0.40 0.57
tout PCI. 3'.0 1.27 2.1 3.21 84.0 0.51 10 82.0 110.0 66.0 1.43 820.0 0.40 0.57
votatlle Organic.
w
I Methytene Chtorlde 0.020 NO 10 0.030 0.006 0.022 0.0071 0.391E 0.0361 0.007 10 0.007 0.011 0.0218
-..J
w 0.019 10 0.059 0.030 10 10 10 10 0.040 0.050
Acet- 10 10 10 10
trlchloroethene 0.007 NO 10 0.120 10 10 10 10 10 lID lID 10 10 10
.. tetrachtoroethene 10 10 10 0.28OE 10 10 10 10 10 10 110 10 10 10
Ethy I benzene 10 lID 10 10 0.014 10 10 10 10 10 10 110 110 110
1,1,1-trlchtoroethane 10 10 10 10 NO 10 10 10 10 10 NO 10 110 110
111 - concentration in perts per .illion (dry weight).
121 . Aroelor. II.ted are the only Aroelor. detected.
. . Indicate. par88eter was detected in a..oelated blank.
f . ful_tedvalue.
110 . Nol detecled.
Rf Repeat analysis.
" ......
,'";"'1
-------
,.
TABLE 5-58(contlnued)
PCB I AND VOlATilE ORGANICS DETECTED IN SURfACE SOilS
SANGANG PROPERT' AREA D
S8IIpi e Nl.IItIer
PARAMETER (1J SDSS-27 SDSS-27 SDSS'27RE SDSS-28 SDSS-29 SDSS-30 SDSS-3ORE SDSS-31 SDSS-32 SDSS-33 SDSS-34 SDSS']S SDSS-)6 SDSS' ]6
~I Icate D'4»llnte
. PCBs 12)
Aroclor 1248 . . 32.0 . II) II) 15.0 3.4 0.72 2.7 1.7 3.0
Aroclor 1252 . . II) II) II) NO NO . NO NO 110 II)
Aroclor 1254 1.5 0.55 12.0 63.0 0.25 0.41 . . 0.88 110 1.0 0.38 .
Total pal 1.$ 0.55 44.0 63.0 0.25 0.41 15.0 3.4 1.60 2.7 2.7 3.38
Volatile Or8enici
c..J Methylene Chlorfde 0.0141 . 0.0101 0.0161 .0.016 0.0201 0.0121 II) . 0.007 0.0401 0.0141 0.028 0.0181
I
" 0.058 0.021 0.028 0.063 8D . 0.016 0.024 0.045 0.065 0.068
~ Acet- . II) 8D
Trlchloroeth- II) 8D 8D . . 8D II) 110 . . II) 110 II) ND
Tetrachloroethene II) II) . 8D II) . 8D NO . . 110 110 NO II)
Ethytbenlene II) 110 . 8D 8D . 8D . 8D . II) NO NO II)
" ""1.Trlchloroethane 8D 8D II) 8D 0.050 II) 8D II) 8D 8D II) NO 8D II)
11) . Concentretlon In pertl per .llllon (dry weight).
12) . Aroclorl lilted Ire the only Aroctor. detected.
. - Indlcltel per_ter ...1 detected In I..ocllted blank.
f . ht I_ted vllue.
NO . lIot detected.
IE . lepeat .nelysil.
-------
, '
TAiLE 5-58 (cantl~)
PC" A8I) VOlATILE ORGANICS DEJECTED IN SUlfACE SOILS
SANCiMO PIOPE." MEA D
SlIIpt. NUlbir
, PAIMETEI I1J _-S1 IOSS-38 SOSS.]9 SOSS.391E IOSS-40 SOSS.4D1E SOSS-41 SOSS-4Z SOSS-43 SOSS-OIE SOSS-44
pca. 12)
Aroe'or 1248 .. 36.0 81) .. 11.0 22.0 17.0 1.2
Aroe'or 1252 .. .. .. .. 81) " " NO
Aroe'or 1254 0.15 " 0.81 0.53 6.9 28.0 19.0 1.0
Tot.t PCI. 0.15 36.0 0.81 0.53 17.9 50.0 36.0 2.2
Vo'.tl'e Organic.
Methytene Ch'orlde 0.0151 0.0321 0.023 0.025 0.024 0.120 0.0061 " 81) NO lID
w
I Acetone 0.040 0.080 0.130 0.140 .. 0.081 81) 0.008 0.0241 0.0181 lID
"
U1
Trlch&oroethene 81) " " " " 81) 81) .. .. NO lID
, Tetrach'oroethene 81) " " " " " " " 81) NO lID
Ethy' benzene 81) 81) .. .. .. .. '81) .. .. NO lID
1,1,1-Trlch'oroeth8n8 .. .. .. .. .. .. .. .. .. 81) lID
111 . Concentration In plrt. ~r .llllan (dry ~Ight).
121 . Aroclor. II.t~ .re the only Aroclor. detect~.
. . Indic.te. perl8eter wa. detected In ...ocl.ted blank.
( 'f.'i_l~ "81ue,
NO Nol ~I.(I~,
"' IIrp«-8I .nalysls,
-
r' "c'
-------
TA8lE 5-59
PCB CONCENTRATIONS DETECTED IN SUBSURFACE sOILS'
SAIiGAMO PROPERTY AREA D
P.r_ur (2]
SAMPLE NUMBER [11
Aroclor 1242 Aroclc:" 1244 Aroclor 1254 Toul PCBs
SOSI"" (5.0' 6.0) III) III) '00 360 (/0]
SOsa.2 [3.5' 5.0) 2.5 110 110 2.5
S058-5 (4.0 - 6.0) 0.800 110 lID 0.800
SDSI-5A (4.0 - 6.0) lID 3.9 lID 3.9
$058-51 (4.0' 6.0) 0.400 lID lID 0.400
sosa.s (3.5' 5.0) 0.240 lID 0.037 0.277
SOSB- 10 (3.5' 5.0) 0.240 lID lID 0.240
SOWI -, (0.0' 1.5) [3] lID 73 40 1'3
SOWl.' (1.5 - 3.0) 110 1.7 0.530 2.23
SOWl' 2 (0.0' 1.5) lID 110 lID II)
SOWl' 2 (1.5. 3.0) lID II) lID II)
SOWl- 3 (0.0' '.5) lID lID 1.3 1.3
SOWI - 3 (1.5' 3.0) lID lID 0.290 0.290
SOWl.4 (0.0' 1.5) 2.0 110 lID 2.0
SOWl.4 (1.5 - 3.0) lID 19 4.9 23.9
m - Conclfttratfan In part. per aUlfan (dry ..lgIIt).
[21 . "roclora l I.ted a,.. the anly Aroclora dltected.
[31 - SDWI'. ...led at -.Itortl'll ...U l0C8tlan.
(41 - Total PCI conc8ntratlan In $OSI"A (5.0 . 6.0) Includls 260 ~ of Aroclor '0'6.
Sl8ple SDSI'1A (5.0 . 6.0) I. the anly ...le In thl. table In which Aroclor 1016 ~ dltected.
lID . Mot dltected.
3-77
-
.
-------
TABLE 5-60
~Y Of PARAMETERS DETECTED IN
HSL ANALYSIS OF SUBSURFACE SOILS.
SAMGAMO PROPERTY AREA D
S~le NUd)er
PARAMETER [1)
$OSI-'A
(5.0 - 6.0)
SOS8-'A OL
(5.0 - 6.0)
PCBs [2)
Aroclor 1016
Aroclor 1254
260
100
390
1'0
Tot.l PCBs
360
530
Vol.tile Orglnics
1,1-Dichloroethane
l' B NO
'.6 lID
280 E lID
2'00 E 12,000
'30 BE ID
4_9 . ID
7- 1 . ID
'1' lDo
Acetone
1. 1. 1-Trlchloroethane
Trlchloroethene
TetrlChloroethene
Toluene
Ethylblnzene
Tot.l Xylenn
S..I-Vot.tlle Organics
bis(Z-Ethythexyl) Phthalate
Z
I norganl cs
Ahal,.. - 61.600
Arsenic 53 .
B.rll8 1Z
B.ryll 118 1_1
C.lcil8 171 .
CtIr08118 8_4 .
Copper "1 N
Iron 53,800
[11 - Concentration in parts par 81\tion (d,., wight).
[Z] . Aroclors listed a... the onty Aroctors detected.
. - Indlcatn par_t.r .... atlO fCU'ld In 8S8OCi.ted blank.
DL . Dilute 88IPt..
E - Estl_ted YIItue.
N - Indicatn spike 88IPle recOVll,., Is not within control If.lts.
lID . Not detected.
S - Indlc.tn YIItue det.ralned bv Method of Standard Addition.
. - Indlc.tn duptlcat. anatyals Is not within controt ll8lts.
3-78
-
.
-------
.
PARAMETU (1)
10/20/88
Dl
10/20/88
01/17189
10/20/88
10/20/88
Dupllnt.
TABLE 5 -60 (c:oot looed)
~RY Of PARAMETERS DETECTED I. GROUND WATER
OCIOlU 1988 AND JANUARY 1989
SAMGAMO PROPERTY AREAS C,D,f,G AND "
Well 8nd S8IIIp1l rill D.t.
SDMII. 1
SDMII- 2
SOMW.]
10/20/88
DL
01117/.
10/20/88
Dupllc:et. DL
10/20/88
01/11189
DL
01118/89
01/18/89
DL
Othera
Totel Alk.llnlty (e.CeCO]) 21 2] 21 25 21 23 17
Chloride 5.7 5.5 6.8 1.5 2.3 17 22
".rdne.. (..C8CM) n 46 33 33 24 66 44
Suspended SOlidi I 180 580 990 170 600 2480 420
Sulf.te I 5.8 1.8 2.8 2.6 2.8 5.8 ].4
tAl
I
......
......
......
..
(11 . Conc:entr.tloo In pert. per 8111100.
D,Dl . Dllut. '8IIIp1..
-------
TABLE 5-60(contl,,*)
SUMMARy OF PAIAMETERS DETECTED 1M
HSL AMALYSIS OF SUlSURFACE SOILS,
SANGAMO PROPERTY AREA D
S~le Nuraer
PARAMETER
[1]
SDsa'1A
(5.0 . 6.0)
SDS8.1A DL
(5.0 . 6.0)
lnorganics (contl,,*)
Le8d
Zinc
154 M
76 *
102 M
19
I. 455
I 113 *
I 27.6 *M
Ma;nnila
Mang..l.
.Mick.l
Potallila
Vanadlla
.'
[1J" ConI:entrltlon In perts per .HlIon (dry wight).
DL . Dilut. I81Pl..
M . IndiC8t.. spik. IlIIPl. recovery II not ..itllin control lI.iu.
. * . Indicat.. dupllC8t. ..lysil il not ..ithin control ll.itl.
3-79
-
.
-------
TABLE 5-61
PCB CONCENTRATIONS DETECTED IN SUBSURFACE SOILS.
SANGAMO PROPERTY AREA E
PAIWIETER [Z]
SAMPLE NUMBER [1] Aroclor 12l.8 Aroclor 1251. Toul PCBs
SESB. 1 (1..0. 5.5) 0.830 0.520 1.350
SESB. 1 (4.0. 5.5) 1.4 3.9 5.3
DI4II i cne
SESB.2 (3.5. 5.0) 0.260 110 0.260
SESB.3 (4.0. 7.0) 11..0 NO 1/..0
[1] . Concentration in perta per .illion (dry weight).
[2] . Aroclor, lilted are the only Aroclorl detected.
NO . Not detected.
3-80
-
-
-------
'ABLE 5-62
SUMMARY Of PARAME'ERS DE'EC'ED IN ANALYSIS Of CROUND WA'ER -
SANCAMO PROPER" WAS'EWA'ER 'REA1MEN1 fAClll1Y AND AREA E
Wel I 8nd S8qJ1 ing Date
SEIII-1 S\AI-1 S\1411-2 S\MII.3
PARAHE1ER (1J
10/12/88 1/23/89 10/10/88 1123189 10/10/88 10/10188 1/23/89 10/10/88 1/23/89
Dl
field Par_ten
pII (I.U.) 6.0 5.5 1.8 1.2 6.2 6.0 1.4 6.8
Specific CondUct8nce 114 385 385 296 262 262 331 290
(~ol/c. a 25 C)
PCBs
Aroclor 1242 lID lID lID lID 0.051 0.031 NO 0.0012
Aroclor 1248 lID lID NO ND lID lID 0.025 110
'otal PCBI lID lID NO 110 0.051 0.031 0.025 0.0012
....
I
....
.... Pesticide Org8nics
0\
Heptachlor Epo.lde
Volatile Organici
Vinyl Chloride NO lID NO NO 0.033 NO NO lID 110
Methylene Chloride NO NO NO NO 0.005' 0.110 ID lID 0.009 8 NO
Acet- 0.01~ lID 0.011 . 0.100 0.110 E 0.530 0 110 0.023 110
1,1-0lchloroethene NO lID NO lID 0.006 NO NO NO lID
..'
1,1 r I !.(oroethene 0.005 0.005 NO lID 0.006 NO NO NO lID
1,2-Dlchlotoethene (tot a') 81) 0.005 NO II» 2.20 E 1.100 0 1.900 0.320 E 0.490
..
(1) - Conc:entratlon in perts per .1 II Ion.
B . Indlcatel that per_ter .,81 detected In assoclal ted blanlt.
D,Dl . Dilute s~'e.
E . ht i..ted value.
NO . Not detected.
-------
. ,
TAILE )-62 (c:ont l..-d)
SUMMARY Of PARAMETERS DETECTED IN ANALYSIS Of GROUND WATfR .
SANGANO PROPERTY WASTEWATER TREATMENT fACILITY AND AREA E
Vel I 8f1d S8lllpllng Olte
. Sf""-1 N11-1 5\111-2 S'"I-3
PARAMETER (1J
'0"2/88 1/23/89 10/10/88 1/23/89 10110/88 10/10/88 1/23/89 10110/88 1/23/89
DL
Vol It lie OrgenlC:I (c:ontlnued)
Chtorofo... 0.026 0.024 NO NO 0.005 NO NO NO 110
1,2-01c:hloroethene NO NO NO NO lID NO lID NO 110
1,1,1-Trlc:hloroethen, 0.005 0.005 NO lID 0.006 NO NO 110 II)
Clrbon Tetrec:hlorlde 0.006 0.006 NO NO NO NO NO NO 110
Trlc:htoroethene 0.041 0.037 I NO 0.007 I 1. 00 IE 1.1 D 1.100 I 0.240 IE 0.530 B
lenlene NO NO NO NO lID NO NO lID lID
v.J
I Tetrec:hI oroethene 0.023 0.025 NO 0.009 0.580 E 0.450 D 0.500 0.048 0.086
......
......
-..J Totll VOCI 12) 0.106 0.107 NO 0.016 3.306 1.6 0.608 1.106
..
Other
Totl' Alklllnity (II CICO]) 76 36 160 150 51 50 140 130
Chtorlde 5.2 1.6 14 18 40 48 19 20
Hudne.. (I. CICO]) 85 47 340 170 88 19 150 130
Suspended Sol Ida 200 16 130 830 69 NO 31 29
Sulfltl 3.4 2.0 40 28 16 18 15 12
I .
111 - concentr~tlon In pert. per .llllon.
121 . 10181 we. detKted ~. not Include .ethylene chloride or lcetone
concentrat ions. In c:ue. where per_ter concentrat Ions were qu81 If ied
with en MfM (rsti..ted vllue), the concentration WIS lubstltuted for
the est.88ted valued in order to cllcullte tot II VOCI.
B - Indlcltes thlt per...ter WI. detected In .ssocialted bl.nk.
D,DL - Dilute l.-ple.
E - fltl_ted vllue.
NO - Not detected.
-------
.
-
TABLE 5-62 (cont h_d)
SUMMARY OF PARAMETERS DETECTED IN ANALYSIS Of GROUND WATER -
SANGAMO PROPERTY WASTEWATER TREATMENT FACILITY ANO AREA E
Wel I ..t S8llpllng D.te
5\111-4
S""'-5
PARAMETER [1J
10/11/88
Ion-filtered
1/23/89
10/11/88
014»11 ute OL
10/11/88
Dl
1/23/89
DI4»tlc.te
10/11/88
014»1 I ute
10/11/88
Filtered
10/11/88
10/11/88
OL
1/24/89
Vol.tlle Org8l'lici (continued)
,.
lID lID . . . . lID NO NO
lID . . . . lID NO NO NO'
. . . NO 0.012 . 0.015 NO NO
. lID . NO NO . NO NO 110
0.710 IE o.no 0 1.300 I 1.400 I 0.770 IE 0.7500 1.6 E 0.900 0 1. ]00 B
110 NO . NO NO . lID NO lID
0.120 0.099 0 0.170 0.210. 0.390 E 0.340 0 0.580 E 0.270 0 0.1,1,0
1.101 1.860 1.95 1.188 1.441 2.1S
lID
Chlorofol'll
1,2-Dlchloroethene
1,1,1-Trlchloroethene
C.rbon Tetr.chloride
Trlchloroeth-
W
1
......
......
\0
Benl-
Tetr.chloroeth-
Tot.1 VOCI
(2)
S..I-vol.tlle Org8l'lici
lnorgenici
AIUlI...
10.600 5.n.
. 0.007
53.500 44.200 .
0.016 .
0.028 NO
12.50 N. NO
C_IUI
C.lciUl
Chr.lua
c~r
Iron
111 - Conc~nlration in peru per .illion.
III . 10181 VOCI delKtrd do not include tnethylene chloride or acetone
concffilrat ions. In UIU wh~n per_rer conc ffilr at Ions were que I If ird
wllh an "E" (~stl..trd value). the concentration of the diluted lample w..
lubslilulrd for the esti..trd value in order to c.lculate tot.1 VOCI.
B . Indicates that parameter was detectrd in associated blank.
O,OL - Dilute lample.
E - Est illl8ted value.
N . Indic.tel spike s~le recovery is not within control li.its.
lID - Notdetectrd.
. . Indii.tel dupticate anatysis is not within control limits.
-
-------
fABLE 5-62'Ccont IRIed)
SUMMARY OF PARAMETERS DETECTED I. ANALYSIS OF CROUND ~ATER -
SANGAMe PROPERT' ~STE~TER TREATMENT FACllIT' ANO AREA E
Wel I 8I1d S~I ing Date
$\MI- 4 S""'-5
PARAMETER (1J
10/11/88 10/11/88 10/11/88 1/23/89 1/23/89 10/11/88 10/11/88 10/11/88 10/11/88 1121,/89
Non- f It tered Dl Filtered 0&.f)1 lute Dl 0&.f)1 I ute D&.f)llcate Ol
Field Per...terl
. pH (I.u.) 7.4 7.2 7.2 5.0 5.0 5.0
Specific Concb:tence 213 258 258 244 244 256
(U8hOI/C. a 25 C)
PCb
Aroclor 1242 0.004 0.013 0.013 0.038 0.066 0.110
Aroclor 1248 NO NO lID lID NO NO
IN Totel PCBI 0.004 0.013 0.013 O.O~ 0.066 0.110
I
......
......
00 Peltlclde Organici
Neptechlor Epo"Ide 0.00021
Vol at II. Orgenici
.. Vinyl Chloride lID NO lID lID ID ID 0.013 NO NO
Methvlene Chloride 0.009 . ID ID ID 0.006 . ID 0.006 . 0.120 BD NO
Acetone 0.098 0.086 0 NO 0.140 0.031 0.082 0 0.035 NO NO
1,1.01~hloroethene 0.007 ID ID NO 0.006 NO 0.008 NO NO
1,1'Olchloroethene 0.014 ID NO NO ID NO ID NO NO
1,2-0lchlotoethene (totel) 0.340 E 0.240 0 0.390 0.340 0.300 E 0.280 0 0.390 E 0.200 0 0.410
(1) . Cancantrat Ion In perU per .lIlIon.
. . Indlcatel that per...ter WIS detected In alsocleted blank.
D,Ol - Dilute 1~le.
I E - Est i-ted value.
110 - Not detectf!d.
-------
~: .
TAiLE 5-62Ccontlrued)
SUMMAR' Of PARAME'ERS DETECTED II AIALYSIS Of GROUND YATER -
SAlGAMO PROPERTY WASTEWATER TREATMEIT fACILIT' AID AREA E
Vei i end SlIIpi 1111 D.te
5\111-4 5\111-5
PMANE TER 111
10/11/88 10/11/88 10/11/88 1123/89 1/23/89 10/11/88 10/11/88 10/11/88 10/11/88 1/Z4/89
. ...."t'er" DL f Ii tered D~II~.te DL D~lIc.t. O~i leete Dl
Inor88nlc. (continued)
Le" 0.011 . NO
"..,..118 8.70 3.200
"8nlJene.e 0.365 0.060
Pot... 118 . 16.70 17 . 500
Sod I 18 12.10 11.100
Th.i i 118 0.012 I 0.016 I
\.oJ Zinc 0.074 . NO
I
.....
IV
0 Other
'ot.i Aik.ilnlty (.. C8C03) 120 120 110 19 18
' Chloride 5.0 6.1 6.3 45 n
'.rdne8. (.. C8CO]) 150 120 120 88 8.8
SUlpended Soi Ida 960 160 47 250 1"0
Sulf.te 26 23 33 6.8 6
111 - Concentr.t Ion In pert. per .1 it Ion.
D,Dl - Dliute .lIIpie.
. - Indlc.t.. .plke .lIIpie recovery I. not within controi il.lt..
NO - lot detected.
. . Indlc.te.,dupllc.te 8n8iyal. I. not within controi il.lt..
r ~ '"
-------
,
..
"
TAILE 5-62(eont It..d)
SUMMAR' Of PARAMETERS DETECTED IN ANAL'SIS Of GROUND WATER
SANGAMO PROPERT' WASTEWATER TREATMENT fACILIT' AND AREA E
Well end SlIIpling Date
PARAMEIER (1J
$\HI-6 $\HI. 7
10/12/88 10/12/88 . 1124/89 1/24/89 10/11/88 10/11/88 1/24189
lion-filtered fit tered DL DL
NO NO NO NO NO NO
NO NO NO NO NO NO
NO NO NO NO NO NO
NO NO NO NO NO NO
0.290 0.240 IE 0.240 80 0.260 E 0.250 D o. 130 I
NO NO NO NO NO ND
0.069 0.058 0.052 D 0.230 E 0.190 0 0.086
0.428 0.364 0.540 0.251
NO
Volatile Or88nlcs (continued)
CtltorofoNl
1.2.DlchlorOlthene
1.1.1.Trlchloroeth.ne
Carbon Tetrechlorlcle
Trlehloroethene
W
I
~
tv
tv
lenl-
TetrachlorOlth-
Total wes
121
Se8I.Volatlle Or88nles
Inor88nlcs
Alu.l...
2.540 8 0.940 8
NO NO
12.600 8 5.400
NO iD
0.115 NO
1.680 118 NO
Catillu.
Calclu.
Chr_lu.
Copper
Iron
(1) - Concentration In p8rts per .It lion.
(21 - Total vots detected do not Include Mthyl- chloride or ecet-
concentrat Ions. In cases where p8r_ter concentrat Ions were
qualified with an -f- (estl..ted value), the concentration of the
s~le was substituted for the estl..ted value in order to calculate
tot81 voc..
8 - Indicates that p8r_ter vas detected in associated blank.
D,DL - Dilute semple.
E - Estl..ted value.
N Indicates spite s-.ple recovery is not within control li.its.
NO - lIot detected.
. . Indicates duplicate analysis is not vithln control li.its.
-------
TABLE 5-62 (cont looed)
SUMMAlY Of PARAMETERS OETECT~ IN ANALYSIS Of GROUND WATER -
SANGANO PROPER'Y ~STE~TER 'REATMENT fACILITY ANO AREA E
lieU end S8IIIpting Oate
N11-7A N11-8 5114W-9
PARAME'ER I1J
10/11/88 10/11/88 1124189 10111/88 1124/89 10/10/88 10/10/88 1/2]189
DL OL
field 'ar-.eeerl
. pH (I.U.) 5.4 5.0 5.0 5.0 6.3 6.2
Specific C~tanc:e Z28 283 197 186 '48 '62
(UlihOI/aI 8 25 C)
PC'I
Aroclor 1242 0.014 0.038 NO 0.0'9 NO 0.0022
Aroclor 1248 NO NO NO NO NO NO
'otal PC'I 0.014 0.038 NO 0.019 NO 0.0022
(.oJ
I
..... Pel tic Ide Or8anicI
tV
". Heptachlor Epoalde
Volatile Or88OlcI
.. Vinyl Chtorlde 0.012 NO NO NO NO NO 110 NO
Meehylene Chloride NO 0.140 ID NO NO NO NO 0.084 BD NO
Acetone 0.033 NO NO 0.050 NO NO 110 NO
1,1-Dlchloroethene 0.015 NO NO NO NO 0.016 lID NO
1,1-Dlchloroeehane NO NO NO NO NO 0.031 lID NO
1,2-0Ichlotoeehene (toeal) 0.350 E 0.160 D 0.270 0.015 0.611 0.074 lID 0.057
[11 - Conceneraelon In pare. per .llllon.
. - IndlC8t~. thae par-.eter ..a. deeected In associated blank.
O.Ol . Ollute .~Ie.
E . ht i-ted value.
lID . Not detected.
:1
-------
'A8lE 5-62Ccontlnued)
SUMMARY Of PARAME'ERS DE'ECIED IN ANALYSIS Of GROUND VAIER -
SANGAMO PROPER'Y WAS'EWATER 'REAlMEN' fAClll'Y AND AREA E
Veil 8nd SI8pI ing Olte
$\MI' 8
. S\M11-7A
PAIAME IER 111
10/11/88 '0/"/88 '/24/89
Dl
vol It lIe Organici (continued) f
CMorofor. 0.005 NO .
',2-0Ichloroethene NO . .
',',"'rlchlorotthene 0.028 NO .
Clrbon 'etrlchloride . . .
IrlcMoroethene 1.60 E 0.770 D 1.)00
w lenzene 110 NO .
I
.-. letrlchloroethene , .70 E 0.970 D 1.000
IV
U1 'otll \lOCI 121 1. 960 2.]
-
'0/11/88
'/24/89
""',9
'0/10/88 '0/10/88 '/2]/89
Dl
0.062 0.027 D 0.052
0.015 0.033 0 ,NO
0.013 NO NO
0.029 NO 0.028
1.'0 E 0.390 0 0.820 8
0.0'9 NO 0.025
0.590 0.160 0 0.480
0.809 , .462
55 55
'0 '2
90 61
. 4
6.6 7.8
. NO
110 .
lID .
110 lID
0.06' 0.052 .
. .
0.039 0.0]2
0.115 0.095
Other
'otll Alklllnity CI. CIOOJ) 20 20 12 11
Ch I ort de 64 82 40 41
.Irdne.. CI. caCO]) 41 42 2S 21
Suspended Sol Ids 1080 75 200 78
Sulfite '0 6.4 4.8 6.6
1'1 . Concentrltlon In p8rtl per .lllion.
121 . 'otll VOCI' detected do not Include .thylene chloride or ecet-
concentr8tlons. In c.... where p8r_ter concentrltlons were qualified
with an -E- (..tl..ted vllue). the concentrltlon of the diluted Il8ple
we. .Ub8tltuted 1o, Ih. .Itl..red v.lue In order to c.lcul.te totll VOC..
I . Ind,c.le. th.t par_l.r w.. delected in ...ocl.ted blank.
0,01 . Ollule ..-ple.
I "tl.-Ied v.,~.
NO . Nol ~Ircled.
-------
,
W
I
....
tV
.. W
TAllE5-62 (contlooed)
SUMMARY OF PARAMETERS DETECTED IN ANALYSIS OF GROUND WATER -
SAHGAMO PROPERTY WASTEWATER TREATMENT fACllllY AND AREA E
Vel I 8nd S8lllpllng Dete
PARAMETER (1J
$\111-6
10/12/88 10/12/88 1/24/89 1124189
Non- f It tered. Filtered Dl
0.063 .. NO
2.700 2.500
0.]15 0.252
3.380 2.550
76.900 90. 700
110 ND
0.041 . NO
1/24/89
$\111-7
10/11/88
Dl
10/11/88
Inor8811ica (contlooed)
leed
"egne. It..
"enu_.e
Pote..IUI
SodlU8
Ihel 11118
Zinc
Other
Totel Alkellnlty (e. C8CQJ)
Chloride
]7 34 5.4 ID
100 130 100 90
]] 27 ]4 29
50 ID ]20 180
31 11 0.80 NO
Nerdnt.. (e. CeCO])
Sulpended Sol Ids
Sulfete
(11 - Concentretlon In pert. per .llllon.
D,Ol - Dilute '8lllple.
NO - lIot detected.
. . Indlc.te. the correletlon coeffeclent for ..thod of Itendard
eddition il lei' then O.~.
Indlc.te. dUplic.te anelYI'1 il not within control li.ltl.
-------
'.
TABLE5-62 (coot looed)
SUMMARY Of PAaAMETEIS DETECTED IN ANALYSIS Of GROUND WATER -
SANGAMO PROPEl" ~S'E~'EI 'IEATME.T fACILITY ~ AREA E
llel I end SlIIIpllng Date
$\MI-6 5""'-1
. PARAMETER (1)
10/12/88 10/12/88 1/24/89 1/24/89 10/11/88 10/11/88 1/21,189
lion- filtered filtered DL DL
field P8r_ten
pH (I.u.) 5.6 5.3 4.4 4.3
Spec If I c CorQjct 80Ce 452 419 353 281
(U8hol/ca a 25 C)
PClI
Aroclor 1242 0.040 0.045 0.0049 0.0046
Aroclor 1248 lID lID lID NO
w Total PCII 0.040 0.045 0.0049 0.0046
I
~
IV Peltlclde Or,anici
~
, Heptachlor Epo.lde 0.00066
Votatlta Organici
Vinyl Chloride lID lID lID 0.010 lID Iff)
Mathylena Chloride 110 II) lID lID 0.059 10 110
Acatone 0.150 0.010 III 0.640 E 0.380 0 NO
1.1'Olchloroethene II) II) 110 0.009 II) NO
1.1'0Ichtoroethane 110 lID 110 lID lID lID
1.2-0Ichlotoet~ene (totat) 0.069 0.066 0.012 D 0.081 0.061 D 0.041
I 111 . Conc~trallon In parts prr .IIIlon.
I 8 . lodiealrs Ihal par.-rtrr was drlected In associaled blank.
0,01 Ooluu s~lr.
I f 'I '_IN ...h~
110 1101 drlr.IM.
-------
TABLE 5-63
SUMMARY OF PARAMETERS DETECTED IN
HSL ANALYSIS OF WASTE,
SANCAMO PROPERTY AREA F
S~le N~r
PARAMETER (')
SFSB' ZA
<1,.0 . 6.0)
SFSB.2A RE
<1,.0 . 6.0)
SFSB.2A OL
<1,.0 . 6.0)
SfSB.2'oi
('.0 . 6.0)
PCBs (2)
Aroclor 1248
17,000
NO
21,000
3600
NO
Aroclor 121,2
2500
Arocloi' 1254
3900
NO
11.,000
16,500
Total Pels
20,900
21,,600
Volatile Organics
Trichloroethene
0.11,0
0.034
0.130
0.034
o Tetrachloroethene
Semi'Volatile Organics
NO
I norganics
Alua;,uI
130,000
Arsenic
885-
110
aariua
'.rylllua
1.4
Calciua
280
CtlrCllh.
238
C0b8U
19
C~r
638
Iran
33,000 8
Lead
11
o..a...lua
4000
Pot"llua
300 8
5800 8
"anapnese
Silver
1.4
Vanadiua
68 118
Zinc
120 .
C1] . Concentratlan In part I per .illian
-------
,
TABLE 5-64
SUMMARY OF PARAMETERS DETECTED IN MSL ANALYSIS
OF UPGIIADIEIIT SURFACE SOILS'
SANGAMQ PROPERTY AREA F
PARAI4ETEII m
S~l. N~"
SFSS"
PCBs [2]
Aroclor 12(,2
0.330
0.120
Aroclor 125(,
Total PCBI
0.(,50
Volatile Orgenici
lID
lnorganici
Ah.irull
25,000
Arlenic
10 .
BariUl
32
280
.-
CllciUl
ChroaiUl
20 .
C0A'8r
13 .
Iron
23,000 .
Leld
21 s
150
....,..1 UI
II."..,...
130 .
Mercury
0.043
Pota..IUI
440 .
SIlIMr
0.92
40 ..
Ven8dIUi
Zinc
21 .
[1] . Canc8ntratlon In perta per .tllion (dry weight).
m . Aroclors liltld ar. tile only Aroclot'l detectld.
I . IndlC8t.. splk. I811Pl. recovery II not IIUllln control U.ita.
lID . lot detected.
S . Indicat.. Y8lw det.,..lned by Metllod of Standard Addition.
. . Indlcat.. dupllcat. enalysis il not lIitllln control li.lts.
3-82
-
.
-------
TABLE 5-65
PCB CONCENTRATIONS DETECTED IN SURFACE SOILS,
SANGAMO PROPERTY AREA F
PAIWCETER (2]
SAMPLE NUMBER [1] Aroclor 121.2 Aroclor 12t.a Aroclor 1251. Total PCBs
SFSS.1 0.330 NO 0.120 0.1.5
SFSS.2 lID NO lID ND
SFSS.3. lID 0.800 0.580 1.38
SFSS.4 lID 80 56 136
SFSS.5 lID 540 92 632
SFSS.6 NO 68 37 105
SFSs.7 NO 2.2 1.2 3.1.
SFSs.a NO 14 9.4 23.1.
SFSS.9 lID 300 76 376
SFSS.9
Dl4)l i cat. lID sa 43 131
SFSS.10 lID 0.320 0.220 0.51.
SFSS.11 lID 7.2 5.3 12.5
[11 . concentration In pertl per .HUon (dry ..eIght).
[Z] . Arochw8 Lilted ar. th. only Aroclora det8Cted.
lID . lot detacted.
3-83
-
.
-------
TA8LE 5-66
PCI CONCENTRATIONS DETECTED IN suaSURFACE SOILS.
5ANGAMO PROPERTY AREA F
I par_ter [2]
5A1CPLE NI.JI8ER C1]
I Aroclor 121.2 Aro:lor 12t.~ Aroclor 1251. 70''1 ( PCBs
5FS8.1 (1..0. 6.0) I 0.077 lID NO 0.077
SFS8.1 (1..0. 6.0) Duplicate I 0.220 lID 0.038 0.258
SFS8.1A (4.0. 6.0) I 1.2 lID 0.250 1.1.5
SF58.1. (4.0. 6.0) I lID lID lID NO
SF58.2 (8.0. 9.5) I 0.660 lID lID 0.660
SFS8.2 (9.5. 11.0) I 0.300 lID 110 0.300
SFS8.ZA (6.0 - 8.0) I lID 19 5.1 21..1
5F58-3 (3.5 - 5.0) I lID lID lID NO
SFWS-6 (0.0 - 1.5) [3] I lID lID 110 NO
SFWS-6 (1.5 - 3.0) I lID lID lID 110
[1] . Concentration In pert. per .HUon (dry wight).
[2] . Aroclor. I i.~ ara -the only Aroclora .detected. .
cn . 5FWI" Ullpledl It ...ftori~ wll ICIC8tfon.
lID . Not detected. .
3-84
-
ft
-------
TABLE 5-67
SUMMARY OF PARAMETERS DETECTED IN
H5L ANALYSIS OF SUlSUlFACE SOILS -
5ANGAMQ PROPERTY AREA F
5-.:»le NUlCef
PARAMETER [1] 5F51-2
<9.5 - 11_5)
PCls [2]
Aroclor 1242 0.300
Volatile OrganlCI
Methylene Chloride 0.200
Ace~ I 0.170
Seal-Volatile Orlanici I
bll<2'Ethylheayl) Phthalate I 1.5 I
I
I norian I CI
All8irua 38,500
.'
..
Arsenic: 18 II
laril8 95
Calcll8 100
Ch.--118 13 II
Calt 12
Copper 2011
Cyanide 0.82
Iron 42,100
,Lead 40
....... tl8 4180
........ 650
IItctel 12
Potaatl8 4890
V8I'I8d 118 45 II
Zinc 55
[1J . Concentration In perts per .HUon (dry wight).
[2] . Aroclora lIltad are tile only Aroclors detected.
I . Indicat.. per_ter ... allo fOWld In U80Ciated blenk.
II . Indlcat.. apike 18llPie recowry il not lIithin control ll.itl.
3-85
-
.
-------
.-
~
TABLE 5-68
SUMMARY OF PARAMETERS DETECTED IN HSL ANALYSIS
OF UPGRADIENT SURFACE SOILS.
SANGAMo PROPERTY AREA G
S8q)le N~r
PARAMETER [1]
SG55. 1
PCBs [Z]
Aroclor 1254
0.450
0.450
Toul PCBI
Volatlll Orfl"ici
Methylene Chloride
0.073 .
0.041 .
Acltone
I norganlCI
All8llU1
30,400
Arlenl C
14 SII
'arll8
225
4310
calcil8
ChI'Cl8II8
41 N
Cab8l t
COpper
9.9
29N
Iron
39,300
140
Llad.
"",118
447
107
........
Mercury
0.17
6.7
Nlctel
Pot..all8
516
Illver
V8n8dh.
0.80 .
Zinc
18N
247
[1] . Concentration In perts per .UUon (dry "lIght).
m . Aroclora lilted erl thl only Aroclora detected.
. . Irdlcat.. per_tlr ..as alao fourd In ..soclatad blank.
N . Irdlcat.. spltl IlIIPll recovery I, not "lthln control 1I.lu.
I . Irdlcat.. value detl,..lnId ~ Method of Standard Adell tlon.
. . Irdlcat.. duplicatl analysil II not "I thin control ll.ltl.
3-87
-
.
-------
TABLE 5-69
PCI COIiallTRATlOIIS DETECTED III SURFACE SOILS .
SANGAMO PROPERTY AREA G
I PARAMETER [2)
SAMPLE NUMBER [\.I I Al"oelol" 1210Z Al"oclor 1Zlo& Al"oelol" 1254 Total PCBs
sass., I 110 110 0.'5 0.105
I
saSS.2 I lID 9.1 2.' '1.5
SaSS'3 I lID NO 1.6 1.6
SGSS" I 11 lID 3 14
sass. 5 I lID lID 110 lID
sass.6 I lID lID 0.036 0.036
sass.7 I lID lID lID 110
sass.! I lID 1.1 0.300 1.1o
saSS-9 I lID 1.6 lID 1.6
sass .10 I lID lID 1.3 1.3
saSS.10 Duplicaca I lID lID 1.Z 1.2
saSS-11 I lID 1.Z lID 1.2
saSS-1Z I lID Z 110 Z
SGSS-13 I lID 4.1 110 '.1
SGSS'14 I lID 22 5.6 27.6
SGSS- 15 I lID 4Z 8.4 50.4
saSS-16 I lID 110 lID lID
saSS-17 I 110 110 110 lID
saSS-1! I 110 110 lID lID
SGSS.19 . I 110 110 0.440 0.440
sass-zo I 110 110 0.340 0.340
SGSS'ZO Duplicate lID lID 0.290 0.290
SaSS-Z1 lID 3.9 110 3.9
sass. 22 lID 110 0.630 0.630
sass- 23 lID 1.6 lID 1.6
SGSS-Z4 8D lID 0.4Z0 0.4Z0
SGSS.25 8D 3800 lID 3800
saSS-Z6 110 1500 110 1500
SGSS-Z7 110 110 O.Z70 0.270
SGSS.Z8 lID 110 0.140 0.140
SGSS'29 110 60 39 99
(1] . Concentration In parts par .HUon (dry ...lghU.
(Zl . Aroclo... lisud al". the only Aroclors deuceed.
lID . lIoe deteceed.
3-88
- .
-------
~
TAllE 5-70
PCS CONCENTRATIONS DETECTED IN SUBSURFACE SOll5 .
5ANGAMO PROPE~TY AREA G
Pal"_tel" [2]
SAIIPLE- IR.IIIEI [1]
Al"oclol" 121,2 Al"oclol" 12i04 Al"oclol" 1251, Total PCBs
SGsa. 1a <1,.0. 6.0) NO -1iO NO NO
SG51.2B <1,.0. 6.0) NO Nt. NO NO
5G51.3 (1,.0' 5.5) 0.038 lID lID 0.038
5G51.I, (1,.0' 6.0) NO NO lID NO
5G58-4A (4.0. 6.0) lID lID lID NO
5G51.48 (4.0' 6.0) lID lID lID NO
5GSS-5 (4.0 - 6.0) NO lID lID NO
5GSI.5A (4.0' 6.0) NO lID NO NO
SG58-51 (4.0 - 6.0) NO lID NO NO
5GSI-6 (4.0. 6.0) 0.760 lID lID 0.760
5G51.6A (4.0' 6.0) lID lID lID lID
SGSI.6I (4.0' 6.0) lID lID lID lID
SGsa-7 (3.5 - 5.0) NO lID lID lID
5GSI.8 (4.0 - 6.0) lID lID lID NO
SGSI.8A (4.0 - 6.0) lID lID lID NO
SGSI-. (4.0 - 6.0) lID 0.17'0 lID 0.170
SGsa-. (4.0 - 6.0) O~llC8te lID 0.160 lID 0.160
SGSI" (3.5 - 5.0) lID lID lID NO
SGSI'10 (4.0' 6.0) lID lID lID NO
$GSI-1OA (4.0 - 6.0) lID lID lID NO
SGSI- 101 (4.0 - 6.0) lID lID lID NO
SGSI.11 (4.0' 6.0) lID 57 17 71,
5GSI.11A (4.0 - 6.0) 7000 lID lID 7000
SGSI-11' (4.0 - 6.0) 1.1 lID lID 1.1
SQU.7 (0.0' '.5) DJ lID lID 0.037 0.037
SQU.7 ('.5.- 3.0) lID lID lID 110
SM-S (0.0 - 1.5) lID lID lID 110
SM'S (1.5. 3.0) lID lID lID 110
SGMII-' (0.0 - 1.5) lID lID lID 110
SGMII-' (1.5' 3.0) lID lID lID NO
T,.endI-3 (2.5' 4.0) 2800 lID 1400 1,200
T,.endI'3 (2.5' 4.0) Dl 3800 lID lID 3aOO
[1] . Concentl"lt Ion In ....t. per .1 it Ion (dry wight). DJ - SQI8'. end SQ8'. ..led at --.i to,.,", ...11 locations.
(2) . A,.oclo,.. lilted .,.. tll. only Al"OCloI"I .tICted. lID . lOt .tectld.
3-89
-
.
-------
TABLE 5- 71
SUMMARy OF PARAMETERS DETECTED IN
MSl ANALYSIS OF SUBSURFACE SOilS.
SANGAMQ PROPERTY AREA G
PARAMETER (1)
I
I
I Trend\-]
(2.5 . 4.0)
Saqlle IIUl&ler
Trench-] DL
<2.5 . 4.0)
Trench.] OL IE
(2.5 - 4.0)
SGSa.5
<'.0 . 6.0)
SGSB.5 DL
(1..0 . 6.0)
PCBs (2)
Aroclor 1242
Totll PClI
2800 3800 KO
1400 KO KO
4200 3aOO
lID
Aroclor 1254
Pesticide OrglniC8
vol.tile Organici
Trlchloroetllene
NO NO 0.480 BE NO
lID NO 38a NO
61 ID 6480 ND
260 ID 300 ID 110
lID KO
Metllylene Chloride
Acetone
Tetr8CIIloroetllene
Semi.Vol.tlle Or'flnici
InorSlniCI
Iron
104,000 101,000
55 S 78 SII
.1 19
1.1 0.92
60 80
321 31 II
17. 13
69 105 II
13,300 916
Allilirul
Arlenic
B8rilll
aeryll i III
C.lcilll
CllrOllilil
Cobalt
C0A)8r
[1] . CClftC8fttl'8tion In P8rta P8r .Hlton (dry willlU.
(2] . Aroclors lined .1'. the only Aroclors detected.
I . Indlc.t.. P8r_ter ... .llO f«nt In u8oci.ted blri.
D,DL . Oilute I81Ple.
E . Eati_ted v.lue.
II . Indicat.. qllke I81Pl. recowry 18 not wltlltn control It.itl.
lID . lIot detected.
RE . Repe.t InIlyall.
S . Indlcat.. value dete,..ln8d by Method of St8'ldlrd Addl tion.
e . Indicat.. duplic.te 8ft8lyail il not within control liaitl.
3-90
-
.
-------
TABLE 5- 71 (cont i rued)
SUMMARY OF PAR~ETERS DETECTED IN
HSL ANALYSIS Of SUBSURfACE SOILS -
SANGAMO PROPERTY AREA G
S~le N~r
PARAMETER C1]
Trench-]
<2.5 . 1,.0)
Trench'] OL
<2.5 . ".O~
Trench-] DL RE
<2.5 - 1,.0)
SGSB.5
<1,.0 - 6.0)
SGSB.5 DL
(1,.0 . 6-0)
.Inor;anics (continued)
Lud
Si lver
12 18
2980 668
1,1,9 1,97
NO 0.059
9.8 21
3150 135
1.2 2.0 .
271, 229 N
13N 101
Mlgnesi""
M~lnesl
Mercury
Nickel
PotalS i UII
VINclil.lll
Zinc
r11 . Concentrltlon in parts par .illion (dry ~Ight).
. . Indicltes par_tlr was IllO fCUld In Uaoctlted blri.
O,OL . Otlute IalPll.
N . Indicltes IJ)lke IalPle recovery II not wt thin control lI.t u.
NO . Not detected.
RE . Reptlt analysil.
. '.Indlcates. dupllclte analysil il not within control It.itl.
3-91
-
.
-------
TABLE 5-72
SUMMART OF PARAMETERS DETECTED IN
H5L ANALTSIS OF WASTE -
5ANGAMO PROPERTT AREA H
PARAMETER
I
I
I
I
I
I
I
I
I
I
I
I
NO
5~le N\oIICer
[1 ]
5H5T-~
(0.0 . 1.;i)
5H5T-6 RE
(0.0 - 1.5)
PCBs [2]
Aroclor 12'2
1.3
0.860
Aroclor 1254
Totll PCI.
2.16
Pesticide Organici
NO
Vollt4le Organici
.
"ethylene Chloride
0.013 .
0.01
0.01' .
Totll Xylenes
S.-i'Volatlle Organics
bll(Z'Ethylhexyl) Phthalata
0.490
lnorganici
AII8I,..
Z10,000
Arlenic
zoo r
110.
'arll8
c.aa118
30
Calcl..
1100
eIIr.l..
16 .
[1] . Conc8ntratlon In parts par .Hlion (dry wight).
[2] . Aroclors lilted Ire tha only Aroclorl detected.
. . Indlcat.. per_ter ...1 allo fOlond In lisoclated blank.
II) . NoC decected.
RE . Repeec Ift8lysll.
S . Indlcat.. VIIlue dete,..inad by Method of Standard Addition.
. . Indlcac.. duplicate enalysll II not vlChln control ll.ici.
3-47
-
.
-------
TABLE 5-72(c:ontinued)
SUMMARY OF PARAMETERS DETECTED IN
H5L ANALYSIS OF WASTE.
SANGAMQ PROPERTY AREA H
SAMPLE NI.I48ER
PARAMETER
[1]
5"ST'6 S"Sr'6 RE
(0.0 . 1.5) (0.0 . 1.5)
lnorg."ic:s (c:ontinued)
C~r 4300 .
Iron 29,000 .
Lied 130 S+
MagnniUl 17'0
MaNg_se 230 .
Merc:ury 0.04
PouuiUl 400 .
5 il ver 5.0
V8NdiUl 74 ..
Zinc 430 .
[1] . Concentration in peru ptr .HUon (dry wight).
. . Indicat.. .pite ..-pte r8COYery i. not within control ll.ft..
RE . Repeat _lysil. .
5 . Indicat.. value detlrwiNd by Metllod of Stlnderd Addftion.
. . Indicat.. duplicate analysi. il not within control li.itl.
+ . Indicat.. thl correlation coeffecient for Method of Stand8rd
Addition il leu than 0.995.
3-48
-
.
-------
-
TABLE 5-73
SUMMARy OF PARAMETERS DETECTED 1M MSL ANALYSIS
OF UPGRADIEIIT SUlFACE SOILS.
SAIlGAMQ PROPERTY AREA M
PARAMETER (1]
SMSS.1
I
I
I--
I
I
PCBs (2]
Aroclor 1254
Total Pell
Pesticide Orginici
Volatile Orginici
Methylene Chloride
Acetone
S_i 'Volati le Organici (3]
lnorginici
A lUll,..
Arlenic
18r I UI
CalclUI
Chr_h.
Cobel t
Copper
Cylnlde
Iron
LHd
...... 1111
~
II I ctel
Pot.. I III
Stiver
Vaned I III
Zinc
S~le "_r
0.400
0.400
lID
0.240 .
3.8 E
lID
46,800
24 II
63
299
2511
l'
35 II
0.65
30,000
22
2020
349
11
1620
1.2 .
8611
48
[1] . Concentration in peru per .HUon (dry wight).
[21 . Aroclors lilted are the only Aroclorl detected.
(3] . S_I'volatHe orglnic 8Nlysll perfor8ld on dilute ...le.
. . Indicates per_fer - allo fCM'id In ..aoclated bl-*.
E . Eltl8lted valYe.
II . Indicates spike 18IIPle recovery II not ..I thin control U.iu.
lID . lot detected.
. . Indicates duplicate analyail il not ..tthln control ll.ltl.
3-93
.
-------
TABLE 5- 7 4
PCB CONCENTRATIONS DETECTED IN SURFACE SOILS -
SANGAMQ PROPERTY AREA H
PARAMETER [2]
S~PLE NUMBE. [11 Aroclor 121,2 Aroclor 121,8 Aroclor 1251, Total PCBs
SHSS.1 NO ND 0.1, 0.1,
SHSS.2 NO 1,.5 5.1 9.6
S1I55.3 lID 1.9 2.2 1,.1
S1I5S.4 110 "00 NO "00
51155.5 110 1500 lID 1500
S1I5S-6 lID lID 1.7 1.7
5HSS.7 lID NO 0.540 0.5'0
SIISS-8 lID 8600 lID 8600
SIISS.8 Dl4)licate lID 1900 NO 1.9
SIISS.9 lID 2600 NO 2600
SHSS.10 lID '9 '5 31.
SHSS'" lID 0.940 0.900 1.84
SHSS"2 lID 8700 lID 8700
SHSS.'3. I lID '30 53 '83
SHSS-'4 I lID 40 25 65
5HSS.'5 I lID lID 0.580 0.580
SHSS"6 I lID 0.490 0.560 1.05
SHSS.17 I . lID I., 18 67
SHSS"8 I lID 0.4'0 0.340 O.~
SHSS'" I lID lID ,., 1.1
SHSS'1' Dl4)licate I lID lID 0.570 0.570
SHSS.20 I lID 58 45 '03
SHSS'2' ID 150 140 290
SHSS'U lID lID 0.280 0.280
5HSS'23 lID lID 0.340 0.31.0
SHSS.24 lID 0.320 0.670 0.99
5I1SS-25 lID '.4 0.520 1.92
SHSS-26 lID 3 1.' 1,.1
SIISS'27 lID ID '.8 1.!
SHSS'28 lID lID 0.400 0.'00
[1] . Concentration In peru per .HUon (dry ...igtlU.
(2] . Aroclorl lilted are the only Aroclorl detlCted.
lID . lIot detected.
3-94
-
.
-------
TABLE 5-75
PCB CONCENTRATIONS DETECTED IN SUlSURFACE SOILS -
SANGAMO PROPERTY AREA H
I Par_ter (2)
SAMPLE NUMBER (1)
I Aroclol" 1242 AI"oclol" 1254 Toul PCBs
5HS8.1 (4.0' 5.0) I 110 NO NO
5H58.2 (1,.0' 5.5) I 190 NO 190
5HS8-] (1,.0' 5.5) I lID lID NO
5H58.4 (6.0' 8.0) I 2.6 1.8 4.4
5H58.58 (1,.0' 5.0) I lID lID NO
- I
5H5B'6 (4.0. 6.0) I NO lID NO
5H58'6A (4.0. 6.0) I lID "0 NO
SH5B-68 (4.0' 6.0) I lID lID 110
$H58-68 (4.0 - 6.0) O~l iclte I lID lID lID
$HMWI.10 (0.0' 2.0) [3] I -II) lID lID
$HMWI- 10 (2.0 - 4.0) I lID lID lID
[1] - C~tratton In peru per .HUon (dry ...tght>.
[2] . Aroe,@f"8 lIatlcl ar. tll. only Aroc l or. .tectect.
[3] - SIM8'. ...llcl at prapoud..,ltorl", ...U location.
Monitort". ...U inatellect at diff.rent location.
lID - Not .tectect.
3-95
-
.
-------
- TA8LE 5- 7 6
SUMMARY OF PARAMETERS DETECTED IN
"SL ANALYSIS or SU8SURFACE SOILS.
SANGAMQ PROPERTY AREA "
$8q)le Nl.IIt)er
PARAMETER [1]
. $"$8.58
<'.J . 5.0)
PCB I
100
Pesticide Organici
NO
Volatile Organici
Methylene Chloride
0.260 e
0.760 E
Acetone
S..i-Volatile Organici
NO
lnorganici
Aluairua
'2, 100
2511
-'
Ar..nic
eariUl
23
CalciUl
67
Chr08iUl
Iron
2111
50,200
Lead
12
257
MaIMS iUl
MansI....e
167
7.0
IItcktl
Pot..liUl
520
Silwr
1,.0 .
V8n8dIUi
Zinc
8911
18
[1] - Concentration In pertl per .ilUon
-------
TA8LE 5-77
PC8 CONCENTRATIONS DETECTED IN SU8SURFACE SOILS,
SEPTIC DRAIN FIELDS
Per_elr [2]
SAMPLE NUM8ER (1]
Aroelor 1016 Aroe l or 121,2 Aroelor 121,8 Aroelor 1251, Toul PCBs
South Field
SSS8.1 <1,.5. 5.5> NO 0.11 NO ND 0.110
SSS8.1 <10.0, 11.0) NO 0.30 NO NO 0.300
SSS8.1 (12.5' 13.5) 110 NO 3.80 NO 3.80
SSS8.2 <4.0, 5.0) NO 0.104 lID NO 0.1,1,
SSS8.28 (3.5' 3.8) lID lID lID NO NO
SSS8.3C <5.0' 6.0) 110 lID 0.25 lID 0.25
S5S8.3C (8.0' 9.0) lID NO 0.18 0.066 0.21,6
5558.48 (5.0' 6.0) lID NO NO ND ND
5558-48 (12.0' 13.0) lID 0.21 NO lID 0.21
SSS8'48 (18.0' 20.0) 10.00 NO lID lID 10.00
North Field
SSSB.5 (5.0' 6.0) lID lID lID lID 110
SSSB.5 (10.0' 12.0) lID lID lID 110 NO
SSS8.5 (17.0' 18.0) lID lID lID 110 NO
S5S8'6C (4.0' 6.0) lID lID lID 0.043 0.043
SSSB'6C (4.0' 6.0) Duplicate lID lID lID lID 110
SSSB'6C (10.0' 12.0) lID NO 0.32 0.057 0.377
SSSI'6C 08.0' 20.0) lID '. lID 0.13 lID 0.13
55S1-7 (5.0' 6.0) II) lID lID lID- ND
55SB.7 (5.0 - 6.0) Duplicate 110 lID lID lID lID
SSSI-7 (11.0' 12.0) lID lID lID lID 110
5SS1-7 (17.0 - 20.0) lID 0.75 . lID lID 0.75 .
SSSB-8 (5.0' 6.0) lID 0.13 lID lID 0.13
SSS8' 8 (11.0 - 12.0) lID lID lID lID 110
SSSB-8 08.0' 20.0) lID lID lID lID lID
SSSl.98 (4.0' 6.0) lID 0.28 lID 0.068 0.348
SSSI.9I (14.0' 16.0) lID lID lID lID ND
SSSI.9I (18.0 - 20.0) lID 0.086 lID II) 0.086
(1] . Concentration in pertl per .HUon (dry wighU.
[2] . Arclorl lilted are the only Arclorl detected.
1 . Indlcat.. par_ter .... elao detlCted in ...ocl.ted blenk.
110 . lIot detected.
3-98
-
.
-------
TABLE 5- 7 8
SUMMARY OF PARAMETERS DETECTED IN
HSL ANALYSIS OF SUBSURFACE SOILS'
SEPTIC DRAIN FIELDS
I S...., le NI.JI'Ce r
South Field North Field
PARAMETER [1] I SSSB.41 SSSI-7
I (18.0 . 20.0) (17.0 - 20.0)
PCls (2] I
Aroclor 1016 I 10.00 NO
Aroclor 12'2 I lID O.~ 8
Total PCBs I 10.00 O.~ B
Volatile Organici I
Acetone I 0.066 0.081
I
Semi' Volatile Organics I
Oi'n'8utylphthalate I 1.80 . 1.80 ,
bil(2'Ethylhexyl) Phthalete I 0.54 . NO
Inorganic.
Aluairu. "" ,000 23.900
Arsenic 31 II 13 II
"riUl 216 93
Beryll IUI 1.0 0.81
CalclUl 868 105 8
CtlrC8iUl 15 II 7.9 II
Cobalt 18 9.3
Copper 40 II 3011
Iron 39,900 14,500
leed 15 9.2 II
M81ft8Si UI 2650 8 2450 8
1C8I_~ 176 II 485 II
IIlete. 18 9.3
Pot...h. 6150 5030
Van8diUl T78 22 8
Zinc 268 811 '" 811
[1] . Conclrltrltlon In perts per .1 Ii Ion (dry weight).
[2] . Arclors listed Ire the only Arclor. detected.
. . Indicat.. per_tel' .... 1110 detected in auocilted bl8nk.
II . Indlcat.. spike I8Iple recovery I. not "It"in control It.h..
110 . lIot detected.
8 . Indicat.. duplicate enalysi. I. not "I thin control li.itl.
3-99
-
.
-------
TASLE..5-79
SUMMARY OF PARAMETERS DETECTED IN HSL ANALYSIS OF WASTE -
5ANGAMO PROPERTY WASTEWATER TREATMENT .FACILITY
I
PARAMETER (1] I
SWS8.2
I <2.0 . 6.0)
PC8s (2] I
Aroclor 1242 I 110
Aroc:lor 1248 I 110
Aroclor 1254 I T7
Total PCBs I 181
Pesticide Organics I NO
I
Volatile Organics I
Methylene Chloride I 2.2 IE
Acetone I 1.1 IE
TetrachlorOithene I 0.011
lnorganics I
Al""inull I 355,000
Arsenic I 2S6 S
BariUD I 11 II
Calci"" I 190
Ch rCIIIII.. I 4.8 .
C~r I 44
Cyanide I 1.5
Iron 652
Lead 1.5
MagnniU8 28
Managanese 11
Nickel 11
PotaSlh. 50
Van8d iI... 16
Zinc 4611
5~le NUli:ler
51JS8.2 DL
<2.0 . 6.0)
SWS81-6
511581 -6
Oupi icate
lID
140
19,000
lID
22,000
83
223
4200
23,200
1,1,00
26,1,00
lID
lID
lID
(1] . Concentration in parts per .Illion (dry weight)
(2] . Aroclors list ad are the only Aroclors detected.
8 . Indlcat.. par_ter Mal detected In ...oclated blank. 11).
DL . Dilute a..le. S .
E . Esti..ted value.
.. . Indlcat.. aplke ...le recovery ,. not .., t~ln contr,
If.1 ta.
lIot detectad
Indlcat" value dete,..lrwd by MetllOCl 01 Sanclard Ad!
3-51
-
.
-------
TAILE 5-80
PCB CONCENTRATIONS DETECTED IN SUBSURFACE SOILS'
SANGAKO PROPERTY WASTEWATER TREATMENT FACILITY
PARAMETER [2]
SAMPLE NI.JIBER [11 Aroclor 1242 Aroclor 1254 Toul PCBs
SWSI' 1 (11.0. 13.0) 110 37 "7
M8. 1 (1'.0' 16.0) 18 5.2 23.2
M8.2 (13.0' 14.0) 430 99 529
MI.3 (12.0' 14.0) 140 31 171
MB.4 (14.0' 16.0) 34 6.2 40.2
MI" <16.0' 18.0) 37 6.3 43.3
M8.5 <15.0' 17.0) 35 5.5 '0.5
SWS8.5A (11.0' 19.0) 43 7.6 50.6
5WS8.5A (17.0' 19.0) DL 47 lID 41
5WS1'6 (11.5' 12.0) 31,000 3300 34 , 300
[1] . Concentratt on 1 n pertl per 81 U Ion (dry ..I ght>.
[2] . Aroclo~ lilted are the only Aroclorl detected.
DL . Dilute 888Ple.
lID . lIot detected.
3-101
-
.
-------
TABLE S-8l
SUMMARY OF PARAMETERS DETECTED IN
MSL ANALYSIS OF SUBSURFACE SOILS'
.SANGAMe PROPERTY WASTEWATER TREATMENT FACILITY
S~l e Iil.llCler
PARAMETER [1] SWSB'5A
(17.0 . 19.0)
PCBI [2]
Aroclor 1Z42 43
Aroclor 1254 7.6
Total Pell 50.6
Pelticide Orsenic. lID
Volltile OrtanlCI
Methylene Chloride lID
Acetone lID
Total Xylene lID
InorpniCI
Ah.l,.. 24,100 .
Arleni C 17 S
.arh. 14 N
.eryll1111 1.1
Calcllil 153
ChrCllilil 35 N
C0b8lt 18 .
Co,lPlr 11
-
Iron 21,100
Leed 1.7
..."..1111 4260
......... 735
Nickel 6.6
Pot811 I III 4000
Sodllll 617
VINdIIll 106
Zinc loiN
swsa'5A DL
(17.0 . 19.0)
47
110
41
NO
1 1 BOE
13 BOE
0.06 D
[1] . concentration In parts per .HlIon (dry weight).
[2] . Aroclorl lilted Ire the only Aroclorl detlCted.
8 . Indicat.. per_ter IllS Illo found In I..ocllted blank. S
E . Eni.ted value.
D,DL . Dilute IalPle.
ND . Not detected.
N . Indicat.. spike I~le rICO'tIry is not w.t",n
control lI.1 tl.
. Indlclt.. value dete,.lnad by Method of StAnd.rd
Addition.
. . Indlclt.. dupllclte analysll II not with:n control
lI.1 tI.
3-102
-
-
-------
~
Results
of Remedial Investigation
Pickens County Site
11-8-1989
Rev. I
Table 5-82
SUMMARY OF PCBS DETECTED IN STABILIZATION ~~OON SEDIMENTSI
PCB Concentration (ppm)
Aroclor Aroclar Total
Sample No. 1232 1248 PCBs
SY.003A (0.1) ND NO ND
SY.003B (1.2) NO NO ND
SY.003C (2.4) 780 670 1450
SY.005A (0.1) ND 0.71 0.71
5Y.0058 (1.2) ND NO ND
SY.005C (2.3) 4.3 1.3 5.6
SY.005D (3.4) 1800 NO 1800
SY.006A (0.1) NO 0.61 0.61
SY.0068 (1.2) NO 0.43 0.43
SY.006C (2.3) NO 0.98A 0.98A
5Y.006D (3.4) 5300 1800 7100
Samples collected by US EPA, Kay 10, 1989
NO . Not Detected
A . Average Value
3-:52
-
.
-------
TABLE 5-83
PCB CONCENTRATIONS DETECTED IN SEDIMENTS.
SANGAMQ PROPERTY WASTEWATER TREATMENT FACILITY
PAltAMETER [2)
SAMPLE NUMBER [I) Aroclor 12'8 Aroclor 125' Totll PCBs
SWSD.3 11.00 280 1680
SWSD.I. 1600 1100 2700
SWSD.5 11.2 11. 22.2
SWSD.6 72 52 12'
SWSD.7 '.11 1.7 6.5
SWSD.II 230 89 319
SWSD.9 12 7.7 19.7
SWSD.10 '.5 2 6.5
SWSD.10
D~li cite 5.3 1.9 7.2
SWSD.l1 . 111 6.8 24.8
[1] . Concentrltion in pertl per .illion (dry ~ight).
.[2] . Aroclorl lilted Ire the only Aroclors detected.
D . Dilute l-.ple.
NO . lIot detected.
3-128
-
.
-------
"
TADlE 6-1
CON5T1TUEN rs OF CONCERN AT EACH !.OCA nON
,
MEDIA
lOCATION
GNund Wale'
Solid W..le
5011
Shtdge
PIanI Sile
AREA A
1.2-dichor08lhene(l)
AREA B
PCBs
Irichkwoelhene .
Ielrachloloelhene
1.1..-trichloroelhane
..
PCBs
silve,
PCBs
l;hlolOlorm
t,ichloroethane
tetrachloroethane
tJromodichkwomelhane
1.2-dichlorobenlene
di-n-bulylphhalale
"(2 -elhvlhexyl)phlhalale
. PCDs
I,il:hlo,oelhene
It..trachloroethene
2-tMtxanone
Ioluene
elhylbonzene
kyl8neS
phenol
isophorone
1.2-dictbobenlene
benzoic acid
bis(2-elhvI1eJCYQphthaiate
tdyJbenzylphhalale
cJi-n-bulylphhalale
cadmium
calcium
cyanide
silver
PCDs
alullIII lum
arsc,,1C
silv'!.
-------
TABLE 6-1 (conlinuud)
CONSTITUENTS OF CON.CERN AT EACH LOCATION
MEDIA
.
LOCATION .... W.t., Soil Solid W..t. Sludge
AREA C PC88 PCBs PCBs
1,1,1-tricNoroethane copper
trictDo8then8
tetrKNaroethene
AREA 0 1,24c:Horoeth8ne(l) PCBs (wasle rellluved 1189)
IrichkJroethene trichloroethene
l8IracNoroethene Ielrachloc 00100110
1,1-dicHoroethene acetone
1,I,l-lftchIoroethane elhylbeozone
benz- xyleoes
1,1-dich1oroethane 1,1, 1-lricillor08lhane
1.2-dlChlo'08Ihene(l)
,
AREA E trichloroethene
letracNoloethene
chIorolorm
AREA F 1,2-dict*Jroethene(l) PCBs PCBs
Irichloroethen8 Irich'Of08.hello
a'umi.lum
AREA G 1,2-dichIoroethene(l) PCBs
lrichloroethen8 Irichkxoelhen8
letractDOeth8ne lei. achlot OOIhene
1.1,1-lr~oet~
.....UbJ I ~ 14 U 'u.relW/l I.'~
-------
TABLE 6-1 (continued)
CONSTITUENTS OF CONCERN AT EACH lOCA nON
MEDIA
.
LOCATION ........ W"" 5011 Solid W..le Sludge
l
AREA H 1.24ctDoeIhene(l) PCBs PCBs
IricNoro8Ihen8 sliver lCylenes
1..,""oeIhene bis(2-eUlyUI8JCYI)pl'lhalalo
1. 1. 1-tr1ch1of«*han8 alumillUm ,.
a. senlC;
cadmium
silver
llllC
Waslewaler Tlealmenl PCBs PCBs PCBs
Plant 1.2-dich1oroelhene(l) lIylenes l8Ir achloroelhene
trichlor08lhen8 altMIW un
18If8CtDoeIhene ar5f;tnIC
-
Oft-Sile Areas
Breazeale Sile loluene PCBs PCBs
1.2-dk:h1orOBlh8nB(1)
1richIof08lhene
18IfacNoroelhene
1.1.1-1ricNor08lhane
benzene
1.1.2.2-18Ifachlofoelhane
Nix Site PCBs PCBs
I
.....\~I) .41 IWI)hA./,.,8!tN
-------
-
TABLE 6-1 (continued)
CONSTITUENTS OF CONCERN AT EACH LOCATION
, MEDIA
LOCA nON ...... Water 5011 Solid W881e Sludge
Dodgens Site UicIDo8Ihene PCBs PCBs
l8IracNor~ silver cadmium
bis(2~l)phhalale copper
IHall
silver
Cross Roads Site 1.2-dichb'oethene(l) PCBs PCBs
IrichkJr08lhen8 silver 1.2-dichloroelhone(l)
lelrachkJfoeU1en8 I,ichlowelhene
cadmium
silver
cyanide
.. John TnJller Site PCBs PCBs
lrichkM04 !Ihene ,~
le1rachb oerhene
anlimony
cadmium
copper
lead
silver
Welborn Sle PCBs PCBs
lead
-..,,')bJ" .4 I&.,O"'"",',,\JI8"
-------
TABLE 6-2
Ccnstltuent Site M~dla I C,:,"~!~~.a~~:~ ~::-:;: :~~~.~ '
I ='CSs Area A Soil I 0.43 . 5600
S:...::;e I . :- ~ . 26.200
II Area B Ground Waler I N~ . 0003
I 5011 : NC .32.000
I Solid Waste I 31 . 920
I
Area C I Ground Water I 0.0058 . 0.0075
S':.: I NO . 33.000
, Solid Waste 25.200 . 49.000
I
I Area 0 Soil NO . 3400
I
I Area F SOil I NO . 632
II
,I Slu::lge 16.500 . 24.600
Area G Soil NO .7000
, Area H Soil NO . 8700
SOlid Waste 2.16
'MVTP Ground Water N~ . O. 1 ~
I Soil 40.2 . 34.300 I
.. Sludge 187 . 26.400
I
Breazeale Soil NO. 8280
Solid Waste 'NO. 1800
" NIx Soil NO . 66
,
Solid Waste NO . 13
Oodgens Soil NO . 2700
Solid Waste 30 . SOO
Cross Soil NO. 410
Roads Solid waSte 1 1 8 . 1 25
John Soil NO . 120 I
Trail. Solid Waste 730 . 870
Welborn Soil NO . 69 III
tetracnt."....... ~ AreaB Ground Water NO . 70
Soil NO. 0.0094,21
Solid Waste NO. 910
Area C Ground Water 0.10 . 0.19
CONCENTRATION RANGES OF CON57;7UENiS :JF CONCE::1N
. . r.Ql'\rwetec:t. .
-= ~.; ,...,.". 2.1',COIC
I
...
.
-------
Constituent Sit. MedII Conclntrltlon Rlngl(ppm)
tetrachloroethene Area 0 Ground Water 0.076 . 21 \
Soil NO. 560
Area e Ground Water 0.023 . 0.025 I
Area G GrounC Water NC . ~. : 3
Soil NO . 300
Area H Ground Water 2.7 . 12.0
WNTP Ground Water NO . 0.58
Sludge NO . 0.011
Breazeale Ground Water NO. 6.2 I
Oodgens Ground Water NO .0.006 ~
Cross Ground Water NO . 0.049
Roads
John Troner Solid Waste NO . 0.3
tnchlorethene Area e Ground Water NO. 7.3
I Soil I NO. 0.1431 i
Solid Waste NO . 8300 i
I I
Area C GroundWater 0.47 . 1.10 i
Area 0 Ground Water 0.28 . 1 10 i
Soil NO . 2500
A~ea E Ground Water 0.037.0.041
I
Area F Ground Water 0.050 ~ 0.059 I
I
Sludge 0.13 . 0.14 I
Area G Ground Water NO . 1.6 I
Soil NO. 64
Ar88M Ground Warer 14. 19 I
,
WNfP Ground Water NO. 1.6 I
Breazeale Ground Water NO . 270
i Oodgens Ground Water NO .0.019
Crcsa Ground Water NO . 0.049
Roads Solid Waste NO .0.048
. -
II JoM Trotter Solid Wast. NO . 0.41
l'.... . NO"'IoI.t.~
TABL.E 6-2
CONCENTRATION RANGES OF CONSTITUENTS OF CONCERN (continued)
... ""'9'~'''' J.U~
-
.
-------
con8tltU8nt Site Medl8 Concentration R8ng8(ppm}
1 .2 dichlora«nene(t) Artta A Ground Water NO .0.022
Area 0 Ground Water NO . 2.1 '
Soil NO .0.062
Area F Ground Water 015-019 !
Area G Ground Water NO. 0.012
Area H Ground Water NO. 0.017
WWTP Ground Water NO . 2.2
Breazeale Ground Water NO . 0.025
Cross Roads Ground Water NO . 0.005'"
Solid Was:e NO. 0.14
1.1 dichloroethene Area 0 Ground Water NO . 4.4
1.1.2.2 Breazeale Ground Water NO . 0.018,51
I tetrachloroethane
1 1 1 tricnloroet"ane Area B Ground Water NO . 0.076
I Area C Ground Water I 0.075. 0.140 I
Area 0 Ground Water NO .4.9 I
i
I
Soil NO . 99 !
Area G Ground Water NO .0.056 '
!
Are. H Ground Water NO . 0.065 I
Breazeale Ground Water NO . 0.036
1 . 1 dichloroethane Area 0 Ground Water NO . 0.18 ,
1.2 dichlorobenZene Area B Soil NO. 0.57 I
Solid Waste NO . 7.9
b8nZ8W Area 0 Ground Water NO . 0.007 I
I
Breazeale Ground Water NO . 0.045'.
II ethylb8nZ8l. Are. B Solid Was1e NO. 510 I
Area 0 Soil NO .41 :1
toluene Area B Solid Was1e NO . 960
-~.-
I I NO .0.048 ,
i ortr-,eillle Ground Water
... . I\O"'';;>818Ct
TABLE 6-2
~T10N RANGES OF CONSTITUENTS OF CONCERN (continued)
...~.~... 2.21-
-
.
-------
\:
Conatlu8nl. $"8 Medii Concentration Alnge{ppm)
II xylenes Area 8 Solid waste NO . 5200
Ar,.,; ~ Soil NO - 270
I Area H Solid Waste I
NO . 0.C1
WNTF Soil 0.06
phenol Area 8 Solid Waste 26.56
cenzoic acid Area B Solid Waste NO. 66 :1
chloroform Area B Solid Waste NO . 0.06~ I
I
Area E Ground Water 0.024.0.026
bromodichloromethane Area B Soil NO - 0.015'.
acetone Soil NO . 100 I
2-hexanone Area 8 Solid Waste NO. 5.7
isophorone Area B Solid Waste N0-6.5
cls(2-ethyhexyl) Area 8 Soil 0.10i8 I
phthalate Solid Waste NO . 36 !
Area H Solid Wast. 0.49 !
Oodgens Ground Water NO . 0.021 i
I
,
butylbenzylphthal81e Area B Solid Waste NO. 22
I
di.n.butytphthalate Area B Soil 0.55" !
Solid Waste 5.3.40 i
:
cyanide Area B Solid Waste .NO .9.4
Cross Roads Solid Waste 721 i
aluminum AtuA Sludge 180.000 . 240.000 i
ArtaF Sludge 130.000 I
!
Area H Solid Wasre 210.000 I
WWT'TJ Sludge 355.000 I
antimony John Troner Solid Waste 1.1 :1
arsenic Area A Sludge 1 50 . 230 I
I
'. .
, :
Area H' I Solid Waste 200 I
jw . /lton-uetec:t
TABLE 6-2
CONC&NTRATION RANGES OF CONSTmJENTS OF CONCEFIN (continued)
.... -0'.512''* 2.21-
-
-
-------
TABLE 6-3
Surface Soil Exposure Point Concentrations
Constitutuent Site ':oncentration (maiko)
PCBs Area A 259
Area B 1470
Area C 795
Area F 129
Area G 212
Area H 886
Breazeale 19
Nix 13
Dodgens 35
Cross Roads 22
John Trotter 8
Welborn 19
Tetrachloroethene Area B .056
Trichloroethene Area B .075
Bromodichloromethane Area B .036
..
-
.
-------
TABLE 6-4
Toxicity Values for Contaminants of Concern
Contaminant
Bromodichloromethane
Chloroform
PCB
Tetrachloroethene
Trichloroethene
.'
-
Reference Dose
(mg/kg-day)
2.0 x 10-2
1. 0 x 10-2
{'afD}
Cancer potencv Factor
(mg/kg-day-l) .
6.1 x 10-3
7.7
5.1 x 10-2
1. 1 x 10-2
2.0 x 10-2
.
-------
TA.BLB 6-5
St11lMlAry of Baseline Risk
LOCA T10N INCREMENTAL. RISK \
Plant Site. Area A I 2.3 " ,o~ 'I
Plant Site. Area e 1.3 " 10.J 1
I
Plant Site. Area C 7.1 " , O~ "
..
I
Plant Site. Area 0 1.! :It 10" I
Plant Site. Area F 1.2 " 'o~ II
I
I Plant Site. Area G 1.9" 'o~ II
!
I
I I
I 8.0 " 10~ II
! Plant Site. Area I-!
:
6reazeale S,tS '.2 x , O~ \
I
Nix Site 1.2 x 10" i
I
I
,.
II
Oodgens Site 3. 1 x 1 a'
Cress Reacs Sit. 1.9 x '0'"
I .
4.a " 10" I
JaM Trotter Sit. il
W8tbCm Sit. 1.7 x '0" :\
I
I
-
.
-------
TABLE 6-6
Groundwater Cleanup Criteria
Contaminant
Goal
(mg/l)
.005
.004
.006
0.6
.005
.007
. ..07
.0005
.0002
.005
0.2
.005
2
Basis
Benzene
Bis(2-ethylhexyl)Phthalate
. Chloroform
l.2-Dichlorobenzene
l,1-Dichloroethane
1,1-Dichloroethene
1,2-Dichloroethene
PCBs
1,1,2,2-Tetrachloroethane
Tetrachloroethene
1, 1, 1-Trichloroethane
Trichloroethene
Toluene
MCL
PMCL
CPF
PMCL
MCLa
MCL
PMCLb
PMCL
CPF
PMCL
MCL
MCL
PMCL
MCL = Max~um Contaminant Level
PMCL = Proposed Max~um Contaminant Level
CPF =
Cancer Potency Factor. This is the concentration which
corresponds to an incremental lifetime cancer risk of 1 x
10-6. The assumptions are for the daily lifetime
consumption of 2 liters of water by a 70 kilogram
individual.
a =
Due to structural similarities, the MCL for
1,2-dichloroethane was used for 1,1-dichloroethane
b =
The goal represents the PMCL for cis-l,2-dichloroethene
-
.
-------
.
..
TA81.1~ 7-1
IV
I
......
0'
ESTIHATEO VOWHI~S OF A...n:CTEO HAnRIALS
,-. -- ._.-. .--. . -"- .,-.----.-. -- ..-- "--.-. --.,.. -.' -----.
1 I MATERIALS
I 1--- --'1 -- . -..- ----'-- -- -'1' .n. - ----
1 , I Affected Sot Is I Lagoon Sludges
I I J (c.y.) I. (c.y.)
1 1 Waste 1-- I '-.1-'"
I SANGAHO PUNT SITE I (c.y.) 1>25 ppm 1 >501lpm I
I 1----'--1 -----1-- -. ....,.- _.-
J Area A I I I. , 500 I 3,800 I
1 Area B I 200 1 3,000 I 2,300 1
I Area C 1 200 I 1,,500 I 3,900 I
I Ana U INo Waste 1 10,800 I 9,HOU I
I Area E INo Waste I I I
I Mea F I I 1 ,000 I 71.10 I
I Areas G alld II INo Waste I 2,500 I 1,900 I
I Ac t I ve l.agooll I I I I
I Iliac t i V~ I...gooll 1 1 I) , 700 I 8, bOO 1
I Ih'a i nag~ Hi Idl I I 200 1 I
1 I-'__'_"d J---~.-=-I'---'.---I----- ._-..
I SIJBTOTAL I 400 J )(1,200 I 31,000 I 23.000
1------""- _.- -----.--.j-----'--'-I-' --.--,-.---. '''--1---
I OFF-SITE AltEAS j 1 1 I
1------- J I I I
J Breazea)e 11.500 I 1,.000 1 2.900 I
1 N Lx . I ) 00 I' 200 I WO I
I Dodgens I 100 I 1,900 I I . 'HIO I
I Cross Roads I 400 J I. , 700 I ] , 100 J
1 John Troll:er I )OU J 6UO I 'jOO I
I \.Ie 1 bom I )00 I 6UO I IdlO I
I 1--- .---.-'- I -- --.I~ - - on---I
I ~lI6TOTAI. 12 . ~oo I 12.000 I 11.900 I
J TOTALS 12,900 I 48,2UO I )~,~OO I
1_. ---..--. .- _00 ..1..------. I- --1-.- ..___1_.
------ .------..,
I
, ... I
, I
I AJl Uni ts I
I --r --I
I ~ 25 ppm I ~ 50 PP" I
1 I .. I,
I I I
I I I
I I ,
I I I
I I I
I I I
I I ,
I I I
I I I
I I I
-----1------- . 1- -I
I 59.600 I 5/,,400 ,
I -,---1 _u.. I
I I I
I I 1
I I ,
I I ,
I I I
I I I
I I I
I I 1
----..- . ----'---1------"--- ---' - -1- -,
I ) I. . ')00 I II ./.00 I
I ]i. , 100 I 6 S , 800 I
I -- . L- --...:..------.... I
600
200
18 , 1.00
3,800
23 ,000
NOU:, I" v.....08 .n_'.iJ n'81':lhIIJt .... IUUIkI8C1 up 80 Ih8 ned hundt.d ,utile ,..d 1ncI...ne.
I~t ,,.. ...w..'" ",*,lIt~~ ,,:,1&." ..1""".8'8 ItA ~'.~.""''' In.... "'.......
------- |