United States
Environmental Protection
Agency
Office of
Emergency and
Remedial Response
EPA/ROD/R08-92/065
September 1992
PB93-964411
SEPA Superfund
Record of Decision:
Rocky Flats Plant (USDOE)
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NOTICE.
The appendices listed in the index that ate not found in this dOcument have been removed at the request of
the issuing agency. They contain material which supplement. but adds no further applicable information to
the content of the document. AI supplemental material is, however. contained in1he adminislratiYe record
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REPORT DOCUMENTATION II. REPORTNO. 2. 3. RecIpiont'a Acc:888Ion No.
PAGE EPA/ROD/R08-92/065
4. 11118 and Subtill8 5. ~ Date
SUPERFUND RECORD OF DECISION 09/01/92
Rocky Flats Plant (USDOE) (Operable Unit 2), CO
Fourth Remedial Action - Interim I.
7. Author(a) 8. -nnJng Orgonlza1lon A8pI. No.
9. _nnlng Org8inlzation""'" _AC1dJH8 10. Projac:tlT8IIo/WDfII unt No.
11. Contr8ct(C) or Grult(G) No.
(C)
(G)
12. ~ Organization""" _Addr888 13. Typo of Rapart. P8riod Co-
U.S. Environmental Protection Agency 800/000
401 M Street, S.W.
Washington, D.C. 20460 14.
15. Supplamanwy No'"
PB93-964411
16. Ab81r8C1 (UmI1: 200 _Ida)
The Rocky Flats Plant (USDOE) (Operable Unit 2) site is part of the 6,550-acre
Department of Energy (DOE) nuclear weapons research, development, production, and
plutonium processing complex in Jefferson County Colorado. The plant is composed of
the 450-acre Rocky Flats Plant (RFP) security area and the remaining buffer area. Land
use in the area is predominantly rural and agricultural with several new residential
areas under development. In addition, a wetland area is located 1,000 feet from the
site. The South Walnut Creek Basin and Woman Creek surface water serve as a source of
drinking water. Since 1951, DOE has used the site for manufacturing components for
nuclear weapons, processing plutonium, and fabricating, machining, and assembling
components from metals. A number of past onsite production and waste storage
activities resulted in extensive site contamination. During the 1950's and 1960's,
solvents and reactive metals including lithium were destroyed onsite. From 1958 to
1967, drums containing radioactive contaminated oils and solvents were stored onsite,
with some of the drums corroding and leaking approximately 5,000 gallons of liquid into
the soil. Prior to 1968, sanitary sewage sludge and flattened drums contaminated with
uranium and plutonium were disposed of in onsite trenches, and drums of
(See Attached Page)
17. Docume"U"a'yaia .. DaaaIpIo18
Record of Decision - Rocky Flats Plant (USDOE) (Operable Unit 2), CO
Fourth Remedial Action - Interim
Contaminated Media: soil, gw
Key Contaminants: VOCs (PCE, TCE, toluene, xylenes), inorganics, metals (arsenic,
chromium, lead), radioactive materials
b. IcI8n1Ifief8IOpEndod Terma
Co COSATI _Group
18. Av8il8biMty - 19. SecurIIy CI888 (Thi8 ~) 21. No. 01 P8gn
None 437
211. SecurIIy CI888 (Thi8 P8ge) 22. Price
None
)
50272.101
(See ANSI-Z3i.18)
s.._0iI8 on Ie-
(F0I'IIWIIy IIT1S-35)
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EPA/ROD/R08-92/065
Rocky Flats Plant (USDOE) (Operable Unit 2), CO
Fourth Remedial Action - Interim
Abstract (Continued)
uranium-contaminated oil were burned in onsite pits. In addition, various bottled gases
were detoxified onsite between 1982 and 1983. Current waste handling practices involve
onsite and offsite recycling of hazardous materials, and offsite disposal of solid
radioactive materials at another DOE facility. DOE has conducted a number of
investigations that revealed VOCs, metals, and radionuclides above background levels in
soil, sediment, ground water, and surface water. A 1969 clean-up action attempted to
remove corroded and leaking drums of radioactive waste from an onsite area, remove
contaminated soil, and cap the soil. During the clean-up and removal effort winds
distributed plutonium to the south and east. In 1970, approximately 1,405 additional
drums containing radioactive waste were removed and disposed of offsite. A 1990 ROD
addressed contaminated ground water. This ROD addresses OU2, which includes the 903 Pad
and Lip Area, Mound Area, and East Trenches Area, which are located southeast of the
Rocky Flats Plant, and provides an interim remedy for contaminated soil and ground water.
The primary contaminants of concern affecting the soil and ground water are VOCs
including PCE, TCE, toluene, and xylenes; inorganics; metals, including arsenic,
chromium, and lead; and radioactive materials.
The selected interim remedial action for this site includes constructing an in-situ
vacuum-enhanced soil vapor extraction system to perform pilot scale remedial tests;
filtering extracted vapor using granular activated carbon, with offsite regeneration of
spent carbon; installing ground water depression pumps at the East Trenches Area to
expose residual DNAPLs not released through vapor extraction; collecting vapor extraction
condensates and ground water in onsite ground water holding tanks; and transporting the
condensates and ground water offsite for treatment at a POTW; monitoring radiation levels
during equipment construction; mitigating any affected wetlands; and implementing a full
scale remediation if pilot scale test results show a 1 ppm hydrocarbon recovery rate. No
costs were provided for this remedial action.
?ERFORMANCE STANDARDS OR GOALS:
Soil and ground water clean-up goals are based on health based criteria of 10-4 to 10-6
levels for cancer risk, background levels, and SDWA MCLs and MCLGs. They include
chemical-specific goals for ground water for: acetone 10 ug/l; TCE 5 ug/l; xylene 10,000
ug/l; toluene 1,000 ug/l; methylene chloride 5 ug/l; aluminum 0.2 mg/l; antimony 0.6
mg/l; arsenic 0.05 mg/l; barium 1 mg/l; chromium 0.01 mg/l; iron 0.3 mg/l; lead 0.005
~g/l; mercury 0.0002 mg/l; selenium 0.01 mg/l; gross alpha 11 pCi/l; gross beta 19 pCi/l;
PU 239,240 0.05 pCi/l. Chemical-specific clean-up goals for soil include arsenic 5 mg/l;
barium 100 mg/l; cadmium 1 mg/l; chromium 5 mg/l; lead 5 mg/l; mercury 0.2 mg/l; selenium
5.7 mg/l; TCE 5.6 mg/kg; acetone 0.59-160 mg/kg; xylenes 28 mg/kg; and methylene chloride
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DOE EA-0625
FINAL
SUBSURFACE
INTERIM MEASURES!
INTERIM REMEDIAL' ACTION PLAN!
ENVIRONMENTAL ASSESSMENT
AND DECISION DOCUMENT
OPERABLE UNIT NO.2
u.s. DEPARTMENT OF ENERGY
Rocky Flats Plant
Golden, Colorado
ENVIRONMENTAL RESTORATION PROGRAM
10 September 1992
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DOE EA-0625
SUBSURFACE INTERIM MEASURESIINTERIM REMEDIAL ACTION
PLAN/ENVIRONMENTAL ASSESSMENT AND DECISION DOCUMENT
OPERABLE UNIT NO.2
VOLUME I
u.s. Department of Energy
Rocky Flats Plant
Golden, Colorado
10 SEPTEMBER 1992
FINAL
Prepared by:
EG&G Rocky Flats, Inc.
Rocky Flats Plant
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EXECUTIVE SUMMARY
The subject Interim MeasureslInterim Remedial Action Plan! Environmental Assessment
(IM/IRAPIEA) addresses residual free-phase volatile organic compound (VOC) contamination
suspected in the subsurface within an area identified as Operable Unit No.2 (Om). This
IMIIRAPIEA also addresses radionuclide conrnmination beneath the 903 Pad at om. Although
subsurface VOC and radionuclide conrnmination represent a source of om ground-water
contamination, they pose no immediate threat to public health or the environment. This is
because the extent of the conrnminated ground-water plume is contained well within the plant
boundary, and its rate of migration is not expected to result in off-site contamination before final
remediation of om is implemented (EG&G, 199Oc).
IM/IRAs are typically used as a vehicle for contaminant migration abatement andlor risk
reduction. However, using the IMIIRA to gain site-specific remedial information to support
final action is also justifiable. For example, the U.S. Environmental Protection AgenCy (EPA)
Office of Solid Waste and Emergency Response (OSWER) Directive guidance for ground-water
remedial actions states (EPA, 1989a): "Response measures may be implemented to prevent
further migration of contaminants if they will prevent the situation from getting worse, initiate
risk reduction, and/or the operation of such a system would provide information useful to the
design of the final remedy. .
'Ibis IMIIRAPIEA identifies and evaluates interim remedial actions for removal of residual free-
phase VOC conrnmination from three different subsurface environments at om. The term
"residual" refers to the non-aqueous phase CODtamination remaining in the soil matrix (by
capillary force) subsequent to the passage of non-aqueous or free-phase . liquid through the
subsuIface. In addition to the proposed actions, this IM/IRAPIEA presents an assessment of the
No Action Alternative. This document also considers an interim remedial action for the removal
of radionuclides from beneath the 903 Pad. The decision to pursue such an action will be based
on the results of treatability studies eJCamining radionuclide removal technologies, currently being
conducted by the U.S. Department of Energy (DOE). Each of the proposed VOC-removal
. actions involve in situ vacuum-enhanced vapor extraction technology. The remedial actions are .
proposed not for reasons of mitigating an immediate threat, but rather, for the collection of
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information that will aid in the selection and design of final remedial actions that address
subsmface, residual free-phase VOC contamination at am. Also, the IMIIRA takes advantage
of .the benefit afforded by a small-scale, early remedial action at a site where the uncertainties
associated with subsurface remediation are great. The pUIpOse is in agreement with a recent
recommendation by the EPA OSWER with respect to subsurface remediation (EPA, 1989a):
"The major recommendation is to orient our thinking so that we initiate early action on a small
scale, while gathering more detailed data prior to committing to full-scale restoration." This
guidance also advocates that a proposed action. provide system flexibility so that it may be
modified to better achieve clean-up goals based on information gained during its operation. To
achieve this operational flexibility, the proposed vacuum-enhanced vapor extraction systems are
initially subjected to in siru pilot testing. Based on information collected during the pilot study
phase of the IMIIRA, a determination as to the benefit of continued operation of the vapor
extraction and treatment systems (modified. as necessary) at om will be made. The Plan
discusses general criteria that will be used to conclude pilot testing and to assess the benefit of
post-pilot operation.
As noted above, the primary pUIpOse of the proposed early, small-scale in siru vapor extraction
actions is to collect information that will aid in the selection and design of final remedies for
am. Project success will, therefore, be gauged by the usefulness of the data collected with
respect to final remedial design, not by the degree. of cleanup achieved. However, the
anticipated removal of residual free-phase VOC contamination during pilot and post-pilot
operation of the vapor extraction systems provides an additional benefit of the proposed
Subswface IM/IRA. No matter how small the scale, removal of residual free-phase VOCs from
the om subsurface represents a positive environmen~ impact.
The Subsurface IM/IRAPIEA has been prepared in accordance with EPA OSWER guidance
advocating the use of ObservationallStreamlined Approach methodology for managing
. .
uncertainties associated with subsurface restoration. In developing the proposed actions,
reasonably conceivable deviations in site conditions at am have been identified, and
contingency plans have been developed to manage any associated impacts.
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The IM/IRAP/EA first provides project and Observatiooa1lStrean1lined Approach background
information. This information is followed by a description of the general extent of
. .
contamination within om and the specific environmental issues associated with subsurface VOC
cont~mination. A regulatOry analysis identifying applicable or relevant. and appropriate
requirements (ARAR) for the proposed Subsurface IMIIRA is then presented. This regulatory
analysis is based on DOE's current understanding of the ARAR philosophy as applied to this
IMIIRA. CDH has expressed some concerns ~g this regulatory analysis; their comments
are presented at the end of this Executive Summary (letter from Gary Baughman to Frazer
Lockhart dated 12 March 1992). DOE expects to resolve all ARAR issues prior to finali7.ing
the IMIIRAIEA. The IM1IRAP/EA subsequently presents in situ vacuum-enhanced vapor
extraction actions to be pilot tested in each of the three primary om Areas: 903 Pad, Mound,.
and East Trenches. Each of the proposed actions are critiqued with respect to their expected
effectiveness, implementabiIity, and environmental impact.
The subsurface actions proposed at the 903 Pad and East Trenches areas are expected to involve
dewatering to allow induced vapor flows to contact any residual free-phase VOC coDt~mination
in soils currently beneath the water table. Dewatering may also be required at the Mound Area.
The IM/IRAP/EA includes the use of the South Walnut Creek Basin Surface Water Treatment
Facility to treat cont~minatM ground water recovered during the pilot testing phase. The
IMIIRAP/EA also provides brief descriptions of other existing Or pJanned Rocky Flats Plant
(RFP) water treatment facilities that may potentially be used during post-pilot IM/IRA operation
in the event that the South Walnut Creek Basin facility becomes capacity limited.
After presentation and evaluation of the proposed actions, the IMIIRAP/EA provides a detailed
assessment of the No Action Alternative followed by an analysis of the cumulative environmental
impacts resulting from all previously approved RFP IMIIRAs and the proposed Subsurface
IMIIRA at om.
The IMIIRAP/EA concludes with a discussion of the plan for implementing the proposed
subsurface actions. Implementation includes the preparation of a Pilot Test Plan for each of the
proposed actions. The Test Plans will include all of the detailed design, installation, operation,
and test procedures necessary to execute the pilot tests. A Pilot Test Report will also be
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prepared at the conclusion of all three pilot tests. The report will present an evaluation of test
data and offer recommendations concerning post-pilot operation of an in sitU vacuum-enhanced
vapor extraction system at each of the three om IMIIRA sites.
SUBSURPACB IN1'BRJM 1tBMEDJALACI10N ~
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COLORADO DEPARTMENT OF HEALTH
COMMENTS ON
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I
.J
4210 East 11th Avenue
Denver, Colorado 80220-3716
Phone (303) 320-8333
Hazardous Materials and
Waste Management Divisioa
Telefax Number: (303) 3314401
Telefaz Numbers:
Main BuildingIDenver
(303) 322-9076
Ptannigan PlaceIDenver
(303) 320-1529
First Nationai Bank BuildingIDenver
(303) 3SS-6S59 ,.
Grand Junction Offiee
(303) 248-7198
Pueblo Offiee
(719) 543-&441
ROY ROMER
Governor
JOEL KOHN
Interion Executive Director
March 12~ 1992
Mr. Frazer Lockhart
u. S. Department of Energy
Rocky Flats Office
P.O. Box 928
Golden, Colorado 80402-0928
RE: operable unit 2 Draft Proposed SubsurfaceI:nterim Measure/
I:nterim Remedial Action Plan/Environmental Assessment and Decision
Document, March 2, 1992
Dear Mr. Lockhart,
The Colorado Department of Health (CDH), Hazardous Materials and
Waste. Management Division (the Division), has received the a~ove
referenced document submitted by DOE. This document includes both
a discussion'of Applicable or Relevant and Appropriate Requirements
(ARARs) in Section 3.2.1 and a presentation of the proposed ARARs
for groundwater contaminants in Appendix C. These sections
represent the very serious differences in approach to determining
ARARs that exist between DOE and CDH.
These differences, outlined below, are so serious that we will
allow this document to be released to public comment only ff this
letter, in its entirety, is in~luded' in the document as a part of
the Executive Summary. This allows us to make our concerns on the
ARAR issue clear to the public, while allowing the already much
delayed 1M/IRA schedule to proceed. We would also like to point
out that, if these issues are not resolved, the Division will be
unable to approve a final version of the document on August 28,
1992, as is currently planned.
After a ~eview by the Hazardous Materials and Waste Management and
Water Quality Control Divisions of CDH, and the Office of the State
Attorney General, ,it was determined that inadequate or incorrect
treatment was given to the following:
- Because of the uncertain chemistry of the groundwater that
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comprehensive list of chemical-specific ARARs needs to be
proposed. This list could include the Target Analyte List
(TAL) Metals, and the Target Compound List (TCL) Volatiles and
Semi-Volatiles, but should include any constituents for which
there are standards.
The Colorado Water Quality CQntrol Act is applied
consistently throughout Colorado by the Water Quality Control
. commission (WQCC). The resulting standards differ by stream
segment for a variety -of .reasons including different
classified uses needing protection and variations in natural
background water. quality. Therefore, even though Rocky-Flats
has segment-specific standards for Walnut .Creek and Woman
Creek the state statute. and regulations. and the methodology
for arriving at these standards are generally applicable
throughout the state. In addition, segment-specific standards
are enforceable through state and Federal statutes.and through
NPDES permits. Therefore, all WQCC standards should be
included in this document as ARAR.
- A goal qualifier indicates that "the waters are presently
not fully suitable but are intended to become fully suitable
for the classified use. II It is important to note that the
goal qualifier for classified uses results in only a temporary
modification to numerical standards. The possible active
lifetime of this 1M/IRA ~!ill almost certainly outlast the
current temporary modifications. Therefore the Ugoal"
qualifier cannot be used to abrogate certain standards to TBC
status.
We strongly urge DOE to revive and expedite the site-wide ARAR
discussions. The issues presented above will certainly be a part
of these discussions and resolution depends on continuing
communication. .
If you have any questions regarding these matters, please call me
at 331-4847 or Joe Schieffelin of my staff at 331-4421.
Sincerely, ~
~ aJ. ~ '"~
Gar;Jw. Baug an
unit Leader, Hazardous Facilities Unit
Hazardous Materials and Waste Management
Division
cc:
Charlotte Robinson, AGO
Judy Bruch, RFPU
Paul Frohardt, WQCC
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Section
1
2
TABLE OF CONTENTS
Title
lIB
EXECUTIVE S'Ul\WAR.y . . . . . . . . . . . . . . . . . . . . . . . . . . .. EX-I
INTRODUCTION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1.1
1.2
1.3
Project Background. . . . . . . . . . . . . . . . .'. . . . . . . . . . . . . 1-3
ObseIVatiOna1lStreamlined Approach. . . . . . . . . . . . . . . . . . . 1-6
MFTRAP. Organization. . . . . . . . . . . . . . . . . . . .. . . . . . . . . 1-7
SITE CBARA-C'fERIZ.ATlON . . . . . . . . . . . . . . . . . . . . . . . ~ . . 2-1
2.1
Site Description and Background. . . . . . . . . . . . . . . . . . . . . 2-1
2.1.1 Location and Facility Type . . . . . . . . . . . . . . . . . . . . . 2-1
2.1.2 Operable Unit No.2 Description. . . . . . . . . . . . . . . . . 2-3
2.1.2.1 903 Pad Area . . . . . . . . . . . . . . . . . . . . . 2-3
2.1.2.2 Mound Area . . . . . . . . . . . . . . . . . . . . . . 2-5
2.1.2.3 East Trenches Area ................. 2-7
2.1.3 Surrounding Land Use and Population Density. . . . . . . . . 2-7
Affected Environment. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
2.2.1 Physical Environment. . . . . . . . . . . . . . . . . . . . . . . . 2-10
2.2.2 Regional and Local Hydrogeology. . . . . . . . . . . . . . . . 2-13
2.2.2.1 AlluvialMaterial ...................2-13
2.2.2.2 Bedrock Materials .................. 2-16
2.2.3 Site Hydrology. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
2.2.3.1 Ground Water. . . . . . . . . . . . . . . . . . . . . 2-18
2.2.3.2 Surface Water. . . . . . . . . . . . . . . . . . . . . 2-20
2.2.4 Meteorology and C.1imatology ................ '. . . 2-22
2.2.5 Ecology. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . 2-23
2.2.6 Threatened and Endangered Species. . . . . . . . . . . . . . . 2-26
2.2.7 Sensitive Environments - Wetlands and Floodplains. . . . . . 2-28
2.2.8 Cultural Resources. . . . . . . . . . . . . . . . . . . . . . '.' . . 2-29
Contaminants - Description and Sources. . . . . . . . . . . . . . . . 2-30
2.3.1 Background Characterization. . . . . . . . . . . . . . . . . . . . 2-33
2.3.2 Soil Contamination. . . . . . . . . . . . . . . . . . . . .. . . . . 2-33
2.3.2.1 Volatile Organic Contamination. . . . . . . . . . 2-33
2.3.2.2 Inorganic Contamination. . . . . . . . . . . . . . 2-34
2.3.3 Ground-WaterContamination ................... 2-37
2.3.3.1 Volatile Organic Contamination. . . . . . . . . . 2-37
2.3.3.2 Inorganic Contamination. . . . . . . . . . . . . . 2-37
2.3.4 Surface Water Contamination. . . . . . . . . . . . . . . . . . . 2-45
2.2
2.3
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Section
3
4
TABLE OF CONTENTS (Continued)
Title
fm
2.4
2.5
2.3.5 Air Contamination. . . . . . . . . . . . . . . . . . . . . . . . . . 2-45
2.3.6 Summary of Contamination . . . . . . . . . . . . . . . . . . . . . 2-47
Analytical Data ............... . . . . . . . . . . . . . . . . . . 2-47
Site Conditions that Justify and IMIIRA ............ . . . . . 2-48
IDENTIFICATION OF SUBSURFACE IMIIRA OBJECTIVES. . . .. 3-1
3.1
3.2
Objectives of Interim MeasureslInterim Remedial Action. . . . . .. 3-1
Compliance with ARARs and Protection of Human Health
and the Environment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.2.1 Applicable or Relevant and Appropriate Requirements. . .. 3-2
3.2.2 Items to be Considered. . . . . . . . . . . . . . . . . . . .. . . 3-3
3.2.3 ARAR Categories' .......................... 3-3
Ambient or Chemical-Specific Requirements. . . . . . . . . . . . . . 3-3
Location-Specific Requirements. . . . . . . . . . . . . . . . . . . . . . 3-5
Performance, Design, or Other Action-Specific Requirements. . .. 3-6
3.3
3.4
3.5
PR.oroSED ACTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4.1
4.2
Rationale for IMIIRA Technology Selection. . . . . . . . . . . . . . . 4-2
Evaluation of Proposed Actions ......................4-6
4.2.1 Effectiveness. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
4.2.2 Implementability ......"..................... 4-8
4.2.3 Environmental Impacts ....................... 4-8
4.2.3.1 Air Quality ............".......... 4-9
4.2.3.2 Water Quality . . . . . . . . . . . . . . . . . . . . . 4-11
4.2.3.3 Terrestrial and Aquatic Impacts . . . . . . . . . . 4-12
4.2.3.4 Threatened and Endangered Species. . . . . . . 4-13
4.2.3.5 Cultural Resource. . . . . . . . . . . . . . . . . . 4-15
4.2.3.6 Short- and Long-Term Land Productivity. . . . 4-16
4.2.3.7 Personnel Exposures. . . . . . . . . . . . . . . . . 4-16
4.2.3.8 Commitment of Resources ............. 4-19
4.2.3.9 Tiansportation Impacts ............... 4-19
4.2.3.10 Wetlands and Floodplains Impact AssesSment. 4-20
4.2.3.11 Cumulative Impacts ................. 4-22
Vacuum-Enhanced Vapor Extraction at 903 Pad (IHSS No. 112) . . 4-22
4.3.1 Test Site Description. . . . . . . . . . . . . . . . . . . . . . . . . 4-22
4.3.1.1 Test Site Selection Rationale. . . . . . . . . . . . 4-22
4.3.1.2 Expected Conditions. . . . . . . . . . . . . . . . . 4-25
4.3
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TABLE OF CONTENTS (Continued)
Section
Title
Pale
4.4
4.3.2 Remedial Approach. . . . . . . . . . . .. . . . . . . . . . . . . 4-27
4.3.2.1 Proposed Action Based on Expected .
Conditions. . . . . . . . . . . . . . . . . . . . . .. . 4-27
Observational/Streamlined Approach
Consi~rntions .. ... "."..........440
4.3.3 Evaluation of Remedial Approach. . . . . . . . . . . . . . . . . 4-44
4.3.3.1 Effectiveness. . . . . . . . . . . . . . . . . . . . ..4-44
4.3.3.2 Implementability. . . . . . . . . . . . . . . ... . . 4-44
4.3.3.3 Environmental Impact . . . ... . . . . . . . . . . . 4-46
Vacuum-Enhanced Vapor Recovery at Mound (DISS No. 113) ... 4-49
4.4.1 Test Site Description . . . . . . . . . . . . . ~ . . . . . . . . . . . 4-49.
4.4.1.1 Test Site Selection Rationale. . . . . . . . . . . . 4-49
4.4.1.2 Expected Conditions. . . . . . . . . . . . . . . . . 4-50
4.4.2 Remedial Approach. . . . . . . . . . . . . . . . . . . . . . . . . 4-52
4.4.2.1 Proposed Action Based On Expected
'Conditions. . . . . . . . . . . . . . . . . . . . . . . 4-52
Observational/Streamlined Approach
Consi~rntions ..... .... ...........4-55
4.4.3 Evaluation of Remedial Approach. . . . . . . . . . . . . . . . . 4-57
4.4.3.1 Effectiveness. . . . . . . . . . . . . . . . . . . . . 4-57
4.4.3.2 Implementability. . . . . . . . . . . . . . . . . . . 4-57
4.4.3.3 Pnvironmental Impact . . . . . . . . . . . . . . . . 4-57
Vacuum-Enhanced Vapor Extraction at
East Trenches Area (DISS No. 111.1) .. . . . . . . . . . . . . . . . . . 4-58
4.5.1 Test Site Description.'. . . . . . . . . . . . . . . . . . . . .. . . 4-59
4.5.1.1 Test Site Selection Rationale . . . . . . . . . . . . 4-59
4.5.1.2 Expected Conditions. . .. ..... ~ . . . . . . 4-60
4.5.2 Remedial Approach. . . . . . . . . . . . . . . . . . . . . . . 4-62
. 4.5.2.1 Proposed Action Based On Expected
Conditions. . . . . . . . . . . . . . . . . . . .. . . 4-62
ObservationaJ/Streamlined Approach
Consi~rntions .................... 4-65
4.5.3 Evaluation of Remedial Approach. . . . . . . . . . . . . . . . . 4-65
4.5.3.1 Effectiveness. . . . . . . . . . . . . . . . . . . . . 4-65
4.5.3.2 Implementability. . . . . . . . . . . . . . . . . . . 4-67
4.5.3.3 Environmental Impact . . . . . . . . . . . . . . . . 4-67
Description of Alternative Water Treatment Facilities. . . . . . . . . 4-68
4.6.1 South Walnut Creek Basin Sunace Water Treatment
System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-69
4.6.2 881 Hillside Ground-Water Treatment System. . . . . . . . . 4-72
4.6.3 Building 231B GAC AdsoIption System!
. Building 374 Evaporation System. . . . . . . . . . . . . . . . . 4-74
4.3.2.2
4.4.2.2
4.5
4.5.2.2
4.6
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Section
5
6
TABLE OF CONTENTS (Continued)
Title
Pa2e
4.7
Environmental Evaluation of No Action. . . . . . . . . . . . . . . . . 4-77
4.7.1 Air Quality Impacts . . . . . . . . . . . . . . . . . . . . . . . . . 4-77
4.7.2 Water Quality Impacts. . . . . . . . . . . . . . . . . . . . . . . 4-77
4.7.3 Terrestrial and Aquatic Impacts . . . . . . . . . . . . . . . . . . 4-77
4.7.4 Wetlands and Floodplains. . . . . . . . . . . . . . . . . . . . . 4-77
4.7.5 Threatened and Endangered Species. . . . . . . . . . . . . . . 4-78
4.7.6 Cultural Resources ......................... 4-78
4.7.7 Short-Term Uses and Long-TeIID Productivity. . . . . . . . . 4-78
. 4.7.8 Personnel Exposures. . . . . . . . . . . . . . . . . . . . . . . . 4-78
4.7.9 Commitment of Resources .....................4-78
4.7.10 Transportation Impacts ....................... 4-78
4.7.11 Cumulative Impacts. . . . ... . . . . . . . . . . . . . . . . . . . 4-79
Comparison of Environmental Effects of
Proposed Remedial Actions. . . . . . . . . . . . . . . . . . . . . . . . . 4-79
4.8
~ATION PLAN ........................... 5-1
5.1
5.2
5.3
Pilot Study Test Plans. . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Pilot Test Reports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
ThfIIRA Schedule. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
REl'ER.EN'CFS . . . . . . . . 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
SUBSURFACB INTBJtIM REMEDIAL AcrION PLAN
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TABLE OF CONTENTS (Continued)
LIST OF APPENDICES
APPENDIX A-SOIL SAMPLING RESULTS
APPENDIX B-GROUND-WATER SAMPLING RESULTS
APPENDIX C-APPUCABLE OR RELEVANT AND APPROPRIATE
REQUIREMENTS FOR GROUND-WATER CONTAMINANTS
APPENDIX D-GEOLOGIC LOGS
APPENDIX E-TRANSPORTATION ANALYSIS
Filrure No.
2-1
2-2
2-3
2-4
2-5
2-6
2-7
2-8
2-9
2-10
2-11
LIST OF FIGURES
Title
fm
Location of Rocky F1ats Plant. . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Re~edial Investigation Areas and Individual
Hazardous Substance Sites. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Land Zoning in the Vicinity of Rocky FIats Plant ............... 2-9
Rocky Flats Plant Boundaries and Buffer Zone. . . . . . . . . . . . . . . . . 2-12
Erosional Surface and Alluvial Deposits East of the
Front Range, Colorado. . . .. . . . . . . . . . . . . . . . . '. . . . . . . . . . . . 2-14
Local Stratigraphic Section of the Rocky Flats Plant. . . . . . . . . . . . . . 2-15
Potentiometric Surface of the Unconfined Ground-Water Flow System. . . 2-19
1990 Annual y.rind Rose for the Rocky Flats Plant. .. . . . . . . ... . . . . . 2-25
Soil Sampling Location Map ............................ 2-32
Surface and Aerial Americium-241 Concentration Data for the RFP .... 2-35
Americium-241 (pCilg) Isoconcentration Contours. . . . . . . . . . . . . . . 2-36
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Fieure No.
2-12
2-13
2-14
2-15
2-16
2-17
2-18
4-1
4-2
4-3
4-4
4-5
4-6
4-7
4-8
4-9
4-10
TABLE OF CONTENTS (Continued.)
UST OF FIGURES (Continued.)
Title
Pa2e
Carbon Tetrachloride lsopleths for the Unconfined Alluvial
Ground-Water Flow System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-38
Tetrachloroethene lsopleths for the Unconfined Alluvial
Ground-Water Flow System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-39
Trichloroethene Isopleths for the Unconfined Alluvial
Ground-Water Flow System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-40
Carbon Tetrachloride lsopleths for the Unconfined Bedrock
Ground-Water Flow System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-41
Tetrachloroethene lsopleths for the Unconfined Bedrock
Ground-Water Flow System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-42
Trichloroethene Isopleths for the Unconfined Bedrock "
Ground-Water Flow System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-43
Surface Water and Sediment Monitoring Stations. . . . . . . . . . . . . . . . 2-46
Approximate Locations of Drum Storage 903 Pad Drum Storage Site. . . 4-24
Idealized Cross-Section 903 Pad Area . . . . . . . . . . . . . . . . . . . . . . . 4-26
Schematic Ground-Water and Vapor Recovery System. . . . . . . . . . . . 4-28
Ground-Water and Vapor ExtIaction Well Schematic. . . . . . . . ~ . . .. 4-30
Vapor Extraction Wells Schematic ". . . . . . . . . . . . . . . . . . . . . . .. . . 4-31
Pilot Test Unit Vapor Extraction System. . . . . . . . . . . . . . . . . . . . . 4-34
Pilot Test Unit Vapor Injection System. .. . . . . . . . . . . . . .. . . . . . 4-38
Idealized Cross-Section Mound Area ....................... 4-51
Schematic Proposed Vapor Extraction System Mound. . . . . . . . . . . . . 4-53
Idealized Cross-Section East Trenches. . . . . . . . . . . . . . . . . . . . . . 4-61
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FUrore No.
4-11
4-12
4-13
4-14
Table
2-1
4-1
4-2
4-3
4-4
5-1
5-2
TABLE OF CONTENTS (Continued)
LIST OF FIGURES (Continued)
Title
. Pa,e
Schematic Ground Water Vapor Recovery System East Trenches. . . . . . . . 4-63
South Walnut Creek Basin Chemical Precipitation Treatment System. . . . . . 4-70
881 Hillside Ground Water Treatment System (planned) ............. 4-73
Subsurface IMIIRA Building 231B GAC SyStem
(Planned)/Building 374 Low-Level Waste Treatment System. . . . . . . . . . . 4-75
LIST OF TABLES
Title
Paee
Rocky Flats Meteorological Monitoring Station 60 Meter Tower. . . . . . . . 2-24
Observational/Streamlined Approach at 903 Pad .................. 4-42
Observational/Streamlined Approach at Mound. . . . . . . . . . . . . . . . . . . 4-56
Observational/Streamlined Approach at E3st. Trenches. . . . . . . .. . . . . . . . 4-66
Comparison of Environmental Effects of Proposed Remedial Actions. . . . . 4-80
Subsurface IMIIRA Test Plan Outline. . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Proposed Schedule, Subsurface IM/IRA, Operable Unit No.2. . . . . . . . . 5-5
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Am
ARA
AS
AT
BH
CAA
CC~
CDH
CEARP
CEDE
CEQ
CERCLA
CFR
CMS
COE
CWA
dlm/g
DNAPL
DOE
DOT
DQO
DRCOG
EA
EPA
ER
ERHSPP
ESA
FFACO
PI
FR
FS
ftlft
GAC
HA
HEPA
m .
HS
lAG
mss
IMIIRAP
TABLE OF CONTENTS (Continued)
GWSSARY OF ACRONYMS
Americium
Applicable or Relevant and Appropriate Requirement
. Analytical Sampling Location
Analytical Transmitter
Borehole
Clean Air Act
CarlJon Tetrachloride
Colorado Department of Health
Comprehensive Environmental Assessment and Response Program
Committed Effective Dose Equivalent
Council of Environmental Quality .
Comprehensive Environmental Resource, Compensation and
Liability Act of 1980
. Code of Federal Regulations
Corrective Measures Study
U.S. Army COIpS of Engineers
Clean Water Act
disintegrations per minute per gram
Dense Non-Aqueous Phase Liquid
U.S. Department of Energy
U.S. Department of Transportation
Data Quality Objective
Denver Regional Council of Governments
Environmental Assessment .
U.S. Environmental Protection Agency
Environmental Restoration (Program)
Environmental Restoration Health and Safety Program Plan
Endangered Species Act
Federal Facility Agreement and Consent Order
Flow Indicator
Federal Register
Feasibility Study
feet per foot
Granular Activated CarlJon
High Alann
High Efficiency Air Particulate
Hazard Index
Health and Safety (Department).
Inter-Agency Agreement.
Individual Hazardous Substance Site
lnterim MeasureslInterim Remedial Action Plan
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U
mg/t
mrem
NCP
NEPA
NPDES
1,1,1-TCA
OSA
OSWER
om
PA
PCE
pCilg
pCiI t
PI
PPCD
PSHSP
Po
PVC
QAlQC
RCRA
rem
RFI
RFP
RI
SARA
SID
SOP
TCE
TCLP
11
U
USC
USFWS.
. uv
VOC
p.g/t
TABLE OF CONTENTS (Continued)
GLOSSARY OF ACRONYMS
(continued)
Level Indicator
milligrams per liter
. milli radiation equivalent man .
National Contingency Plan
National Environmental Policy Act of 1969
National Pollutant Discharge Rlimination System
1, 1,1- Tricbloroethane
Operational Safety Analysis
Office of Solid Waste and Emergency Response
Operable Unit No.2
Protected Area
Tettacbloroethene
picocurie per gram
picocurie per liter
Pressure Indicator
Plan for Prevention of Contaminant Dispersion
Project Specific Health and Safety Plan
Plutonium
Polyvinyl Cbloride
Quality Assurance/Quality Control
Resource Conservation and Recovery Act of 1986
radiation equivalent man
RCRA Facility Investigation
Rocky Flats Plant
Remedial Investigation
Superfund Amendments and Reauthorization Act of 1986
South Interceptor Ditch
Standard Operating Procedure
Tricholoroethene .
Toxicity Characteristic Leaching Procedure
Temperature Indicator
Uranium
United States Code
U.S. Fish and Wildlife Coordination Act
Ultra-violet .
Volatile Organic Compound
micrograms per liter
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SECTION 1
INTRODUCTION
The subject Interim MeasuresJInterim Remedial Action PIan! Environmental Assessment
(IM/IRAP/EA) addresses residual free-phase voJatile organic compound (VOC) CODtamination
suspected in the subsurface within an area identified as Opemble Unit No.2 (Om). This
IM/IRAPIEA also addresses radionuclide CODmmimtion beneath the 903 Pad at om. Although
subsurface VOC and radionuclide contamination represent a source of om ground-water
contamination, they pose no immediate threat to public health or the environment because the
extent of the contaminllted ground-water plume is contained well within the plant boundary, and
its rate of migration is not expected to result in off-site contamination before final remediation
of om is implemented (EG&G, 199Oc).
IMIIRAs are typically used as a vehicle for conmminant migration abatement and/or risk
reduction. However, use of the IMIIRA to gain site-specific remedial information to support
final action is also justifiable. For example, the U.S. Environmental Protection Agency (EPA)
Office of Solid Waste and Emergency Response (OSWER) Directive guidance for ground-water
remedial actions states (BFA, 1989a): "Response measures may be implemented to prevent
further migration of contaminants if they will prevent the situation from getting worse, initiate
risk. reduction, and/or the operation of such.a system would provide information useful to the
design of the final remedy. n
This IMIIRAPIEA identifies and evaluates interim remedial actions for removal of residual free-
phase VOC contamination from three different subsurface environments at om. The term
"residual" refers to the non-aqueous phase contamination remaining in the soil matrix (by
capillary force) subsequent to the passage of non-aqueous or free-phase liquid through the
subsurface. In addition to the proposed actions, this document presents an assessment of the No.
Action Alternative: This document also considers an interim remedial action for the removal
of radionuclides from beneath the 903 Pad. The decision to pursue such an action will be based
on the results of treatability studies eJCaminil1g radionuclide removal technologies, currently being
conducted by the U.S. Department of Energy (DOE). Each of the proposed VOC-removal
actions involve in situ vacuum-enhanced vapor extraction technology. The remedial actions are
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proposed not for reasons of mitigating an immediate threat, but rather, for the cOllection of.
information that will aid in the. selection and design of final remedial actions that address
subsurface, residual free-phase VOC contamination at am. Also, the IMIIRA takes advantage
of the benefit afforded by a small-scale, early remedial action at a site. where the uncertainties
associated with subsurface remediation are great. The pUIpOse is in agreement with a recent
recommendation by the EPA OSWER with respect to subsurface remediation (EPA, . 1989a):
"The major recommendation is to orient our thinking so that we initiate early action on.a small
scale, while gathering more detailed data prior to committing to full-scale restoration." This
guidance also advocates that a proposed action provide system flexibility so that it may be
. modified to better achieve clean-up goalS based on information gained during its operation. To
achieve this operational flexibility, the proposed vacuum-enhanced vapor extraction systems are
initially subjected to in situ pilot testing. Based on information collected during the pilot study
phase of the IM/IRA, a determination as to the benefit of continued operation of the vapor
extraction and treatment systems (modified as necessary) at am will be made. The Plan
discusses general criteria that will be used to conclude pilot testing and to assess the benefit of
post-pilot operation.
As noted above, the primary pUIpOse of the proposed early, small-scale in situ vapor extraction
actions is to collect infoI1ll3tion that will aid in the selection and design of final remedies for
am. Project success will, therefore, be gauged by the usefulness of the data collected with
respect to final remedial design, not by the degree of cleanup achieved. However, the
anticipated removal of residual free-phase VOC contamination during pilot and. post-pilot
operation of the vapor extraction system~ provides an additional benefit of the proposed
Subsurface IM/IRA. No matter how small the scale, removal of residual free-phase VOCs from
the am subsurface represents a positive environmental impact.
am is defined in the final Federal Facility Agreement and Consent Order (FFACO) (DOE,
1991a), commonly known as the Inter-Agency Agreement (lAG), and is comp~ of 20
Individual HazMdOU5 Substance Sites (UlSS) that are known in aggregate as the 903 Pad,
Mound, and East Trenches Areas.
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This IMIIRAPIBA is an integrated Comprehensive Environmental Response, Compensation and
Liability ActIResource Conservation and Recovery ActINational Environinental Policy Act
(CERCLAlRCRAlNEPA) document. Documentation prepared pursuant to CERCLA is
integrated with NEPA values in accordance with DOE Order 5400.4. The document has been
prepared to conform with th~ National Contingency Plan (NCP) (FR Vol. 55, No. 46, 8813; 40
CFR 300.415[b][4]) and to the NEPA of 1969, as implemented by regulations promulgated by
the President's Council on Environmental Quality (CEQ) (40 CFR 1500(1508), and DOE
Implementing Procedures [57 FR 15122 (24 April 1m) (to be codified in 10 CFR 1021)]. This
IMIIRAPIBA is also based on EPA OSWER Directive No. 9355.3-03, which emphasizes the
benefits of early, small-scale remedial actions to collect critical site information that would
otherwise not be available to remedial action planners and designers. The Subsurface
. IMIIRAPIBA is also prepared in accordance with EPA OSWER Directive 9355.3-06, which
advocates the use of ObservationallStreaJn1ined Approach methodology for managing
uncertainties associated with subsurface restoration. (DOE's integration ofNEPA and CERCLA
documentation is not intended to represent a statement on the legal applicability of NEP A to
environmental restoration activities conducted under CERCLA.)
1.1
PROJECT BACKGROUND
In March 1987,.a Phase I Remedial Investigation (RI) under the Environmental Restoration (ER)
Program (formerly known as the Comprehensive Environmental Assessment and Response
Program [CEARP]) began at om. The investigation consisted of: the preparation of detailed
topographic maps, radiometric and organic vapor screening surveys, surface geophysical
surveys, a soil gas survey, a boring and well completion program, soil sampling, and surface
. and ground-water sampling. Phase I field activities were completed at om during 1987, and
a draftQRJ report was submitted to the EPA and the Colorado Department of Health (CDH) on
December 31, 1987 (Rockwell International, 1987a). Phase I data did not allow adequate
definition of the nature and extent of contamination for the pmpose of conducting a baseline risk
assessment and a feasibility study of remedial alternatives pertaining tocontaminatec:l media.
A draft Phase n RJ Work Plan that presents the details and rationale for further field work to
achieve these objectives w~ submitted to the regulatory agencies in June 1988 (Rockwell
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International, 1988c). This draft Work Plan was subsequently revised and submitted as a final
Phase n RCRA Facility Investigation/Remedial Investigation Feasibility Study (RFIIRIFS) Work
PIan in April 1990 (EG&G, 199Oc). The plan was approved by EPA in May 1990. The Work
PIan specifies for boreholes to be drilled into waste sources to characterize any waste materials
remaining in pJace, and to assess the maximum contjlm;nant concentrations in soils directly
beneath the sites. In addition, ground-water monitor wells will be installed adjacent to.some of
the boreholes to characterize ground-water quality directly beneath the sites. Additional alluvial
monitoring wells will be installed to further characterize and monitor ground-water flow and
quality in alluvial materials at OU2. Field work for installation of the, alluvw monitOring wells
began in October 1991 and is expected to be completed in the Spring of 1992. Bedrock
monitoring wells will be completed in subcropping Arapahoe sandstone where it is encountered.
. A draft IMIIRAP for contjlm;nJlted ground water at om was submitted in December 1989
(Rockwell International, 1989b). The plan was prepared based on limited knowledge of the
nature and extent of ground-water contam;nation. Regulatory agency review of the document
determined that, although an IMIIRA for ground water is required by the 1989 Agreement in
Principle between DOE and CDH, insufficient information existed on the nature and extent of
ground-water conmmination to pursue effective ground-water remediation at that time. In order
to facilitate early evaluation of the need for an IMIIRA for ground water at om, the final
Phase n RFIIRIFS Work Plan incorporates a phased investigation approach. The phased
approach is to investigate alluvial and hydraulically connected bedrock migration pathways first,
and then to subsequently investigate ground-water contjlm;nant sources. This will allow
planning, design, and. implementation of a ground-water IMIIRA, if necessary, before
completion of the RFIIRI and Corrective Measures Study/Feasibility Study (CMS/FS) for om.
In February and March 1990, representatives from DOE, EPA, and CDH met to discuss surface
water IM/IRAs at the Rocky Flats Plant (RFP) site. The result of these meetings was a series
of agreements, with the concurrence of all parties, to implement an IMIIRA for the cleanup of
contaminated surface water in OU2. On 26 September 1990, the DOE released for public
comment a proposed Surface Water IMIIRA Plan and Decision Document for om. In this
Plan, specific point source locations in the South Walnut Creek and Woman Creek drainage
basins were proposed for collection of surface water. According to the Plan, surface water
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collected in each basin was to be transferred to a treatment facility discharging to the South
Walnut Creek drainage. Effluent would ultimately flow to Pond B-S, where water is monitored,
. .
treated as necessary, and discharged in accordance with the RFP's National Pollutant Discharge
F.1imination System (NPDES). Comments on the IMIIRAP/EA received during the public
comment period, however, revealed strong opposition to the transfer of contaminated seep water
from the Woman Creek drainage to the South Walnut Creek drainage. Opposition was based
on the absence of a proven performance recorQ for the proposed IMIIRA treatment facility with
respect to radionuclide removal and the potential for treatment process upsets. Opposition to
the Plan was also based on. the use of Indiana Street (located outside of the RFP boundary) to
transport Woman Creek Basin seep water to the treatment facility by truck. In addition, the
public voiced strong concern over potential worker and public health risks resulting from
construction activities in the Woman Creek Basin (Le., atmospheric resuspension of
radionuclide-contaminatM dust). In light of these concerns, the DOE and regulatory agencies
agreed to address collection and treatment of South Walnut Creek and Woman Creek Basin
contaminlltf'.(f surface water in two separate IM/IRAP/EAs.
A final South Walnut Creek Basin Surface Water IM/IRAP was submitted in March 1991
(EG&G, 1991f), and was approved by the regulatory agencies shortly thereafter. The Plan
included removal of radionuclides and metals from surface water by chemical precipitation and
microfiltration, followed by removal of VOCs by granular activated carbon (GAC) adsoIption.
Installation and startup of the GAC adsoIption units occurred in May 1991. Installation of the
chemical precipitationlmicrofiltration units was completed on 24 April 1992, and system startup
occurred on 27 April 1992.
Prior to preparation of a Woman-Creek Basin Surface Water IMIIRAP/EA, .EPA mandated that
bench-scale treatability studies of various treatment technologies be conducted in the Spring of
1991 to provide performance data for radionuclide removal. However, seep flows were
insufficient for collection of an adequate volume with sufficient levels of radionuclides for
conduct of these studies, and it was agreed that the Woman Creek Basin IMIIRAP/EA would
be prepared in the absence of such studies to avoid project delays.
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A draft Woman Creek Basin Surface Water IMIIRAP/BA was submitted on 02 October 1991
(EG&G, 1991g). This IM!IRAPIBA presents a detailed evaluation of the 'human health risks
and environmental impacts associated with the contaminated Woman Creek Basin surface seeps.
Results of the evaluation indicated that the contaminated seepS present no immediate threat to
public health or the environment. The IM!IRAPIBA thus presented the No Action Alternative
as the preferred alternative. Meetings between DOE, BPA, and CDH were held subsequent to
submission of the IMIIRAPIBA to discuss alternative IM/IRAs that could be conducted at OU2
in lieu of the originally conceived Woman Creek Basin surface water action. The result of these
discussions was an agreement that a better use of resources was to pursue an IMIIRA that
addresses suspected residual free-phase VOC contaminaoon in the subsurface at one or more
om areas. It was further agreed that since subsurface VOC conmmination at om does, not,
pose an immediate threat to public health and the environment, the IM/IRA should primarily be
used to gain information that will aid in selection and design of final remedial actions at om.
1.2
OBSERV ATIONAL/STREAMLINED APPROACH
OSWER Directive No. 9355.3-06 (BFA, 1989b) provides guidance for stfP;:ImHning RIlFS
activities to reduce the cost and time required for planning and implementing site cleanups.
StreamHning is based on the Observational Method, which has been used for decades in the
geotechnical engineering field when dealing with uncertainties associated with subsurface work.
The "Observationa1lStreamlined Approach" has been used to 'plan the Subsurface IM/IRA at
om. The fundamentals of the Observationa1lStreamlined Approach are discussed in this section
along with the benefits of applying this approach to the restoration of hazardous waste sites.
, The Observational/Streamlined Approach is based on the fundamental tenet that it is not always
possible to fully characterize the subsurface. In recent years, incomplete characterization of
hazardous waste sites has delayed design and implementation of remedial actions, and has thus
resulted in higher than expected costs. Observational methods aid in the stJP.:ImHning of clean-up
activities by emphasizing "data sufficiency" rather than "data completeness." Planners and
designers should ask the question, "Is the site sufficiently characterized to develop a cost-
effective and technically defensible remedial action?" By using the four-step process discussed
below when developing a remedial action, this questions is answered.
SUBSURPACB INTERIM RBMBDJAL AcrION PLAN
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The first step is to explicitly state the expected or probable conditions at the site based on all
available data. Expected Conditions pertain to subsurface geology, nature of contamination,
. .
water table behavior, etc. The expected site conditions, together with the remedial action
objectives, are used to fomiuIate the proposed remedial action.
Steps 2 and 3 require identification of reasonable deviations or uncertainties in the expected
conditions and development of mechanisms for their resolution, respectively. Uncertainties in
subsurface hydraulic communication, for example, may be resolved by conducting a tracer study
prior to placement of ground-water recovery wells.
The final step in the Observationa1lStreamlined Approach planning involves development of
contingency plans that address the potential deviations. Contingency planning may involve
telocation of cootaminant recovery systems, modification of treatment system configuration, use
of alternative disposal methods for treatment system residuals, criteria to continue or cease
system operation, etc. Modification of the proposed action based on Observationa1lStreamlined
. Approach contingency planning results in a technically superior and more cost effective remedial
action than would otherwise be achieved.
Although the Subsurface IMIIRA is investigatory in nature, implementation of the pilot-scale
systems discussed herein is based on limited site clwacterization data, and. an
Observationa1lStreamlined Approach to conduct this study is necessary. Utilizing this approach
will maximize the. quality and quantity of information that is gathered for subsequent remedial
design of full-scale systems for final remediation. This IMIIRA may also indiCate that the
technologies tested are either ineffective or not cost-effective for final remediation. This
information is equally valuable by allowing these technologies to be dropped from further
consideration in the FS process, and thus foregoing possible costly implementation of ineffective
full-scale systems.
1.3
IMIIRAP ORGANIZATION
Section 2 of this IM/IRAPIEA provides RFP site characterization information, focusing on site
characterization information for the 903 Pad, Mound, and East Trenches Areas at om. The
SUBSURFACE JNI'BRJM REMEDIAL AcrION PLAN
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discussion also describes the potentially affected environment associated with the IM/IRA and
. .
the results of previous investigations at om. The information included in Section 2 has been
derived from the draft RI report and final Pbase n RFIlRIFS Work Plan.
Section 3 identifies the objectives of the Subsurface IMIIRA at om. Applicable or Relevant
and Appropriate Requirements (ARAR) and applicable environmental regulations pertinent to
remediation of subsurface VOC contamination are also presented in this section.
Section 4 presents the proposed remedial actions to be implemented at each of the om Areas:
903 Pad, Mound, and East Trenches. The Prol ;ed actions address removal of expected
residual free-phase VOC contamination from the subsurface and are conceptually designed to
provide information that will aid in the selection and deSign of final remedial actions at om.
The proposed actions are critically evaluated based on CERCLA effectiveness and
implementability and NEP A environmental impact criteria. Section 4 also presents an
environmental assessment of the No Action Alternative.
Section 5 presents the plan for implementing the Subsurface IMIIRA at om. Implementation
includeS the preparation of a Pilot Test Plan for each of the proposed actions, and a Pilot Test
Report at the conclusion of pilot testing. The PUlpOse and content of the Test Plans and Test
Report is discussed. A preHminary schedule for the proposed Subsurface IMIIRA is also
presented in this section.
Section 6 provides a list of sources referenced in this IMIIRAPIEA.
Volume n of this IMIIRAPIEA contains ground-water, soils, and smfacewater quality data.
Volume n also includes a tabulation of ARARs pertinent to the proposed Subsurface IMIIRA,
and includes details of the transportation analysis performed for this Plan.
SUBSURPACB INTI!RIM REMl!DlAL AenON PIAN
R.OCXY PLATS PLUn', OOLDEN, COLORADO
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SECTION 2
SITE CHARACTERIZATION
This section describes the RFP and surrounding environs, and provides details on site hydrology,
geohydrology, and contamination at om.
2.1 SITE DESCRIPTION AND BACKGROUND
2.1.1 Location and Facilitv fiDe
The RFP is located in northern Jefferson County, Colorado, approximately 16 miles northwest
. of downtown Denver (Figure 2-1). The plant site consists of approximately 6,550 acres of
federally owned land in Sections I through 4, and 9 through 15, of Township 2 South, Range
70 West, 6th principal meridian. Plant buildings are located within an area of approximately
400 acres, known as the RFP security area. The security area is surrounded by a briffer zone
of approximately 6,150 acres.
The RFP is a govemment-owned, contractor-operated facility. It is part of a nationwide nuclear
weapons research, development, production, and plutonium reprocessing complex, and is
administered by the Rocky Flats Office of the DOE. The operating contractor for the RFP is
EG&G Rocky Flats, Inc. The facility has been in operation since 1951 and manufactures
components for nuclear weapons and conducts plutonium reprocessing. The RFP .fabricates
components from plutonium, uranium, beryllium, and stainless steel. Historically~ production
activities have included metal fabrication, machining, and assembly. Both radioactive arid
nonradioactive wastes are generated in the process. Current waste hantiHng practices involve
on-site and off-site recycling of hazardous materials and off-site disposal of solid radioactive and
mixed wastes at another DOE facility.
The RFP is currently a RCRA hazardous waste treatment/storage facility. In the past, both
storage and disposal of hazardous and radioactive wastes occurred at on-site locations.
Preliminary assessments conducted under Phase I of the ER Program identified some of the past
on-site storage and disposal locations as potential sources of environmental contamination.
SUBSURFACE INTBltIM REMEDIAL AcrJON PLAN
ROCKY PLATS PlANI'. GOLDEN, COLORADO
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.
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0PDA8LE UII1' NO. 2
SUlSUlFACE IM/IRA
GENERAL LOCATION or
ROCKY F1.A 15 PLANT
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FIGURE 2-1
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SUBSUIPACE INTIIJIDoI UME!l)L\L AcnON PLAN
ROCICY PLATS PLAln'. OOLDEN. COLORADO
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2.1.2 Ooerable Unit No.2 Descriotion
om is comprised of the 903 Pad, Mound, and East Trenches Areas, which are located
east-southeast of the RFP as shown in Figure 2-2. (Also see Figure 2-4.) The Areas of om
lie within either the Woman Creek or South Walnut Creek drainage basins. Because this
IMIIRAPIEA exclusively addresses subsurface CODt~mination within the Woman Creek and
South Walnut Creek drainage basins, it is U&eful to examine the historical uses of the om
Areas. Twenty sites, designated as mSSs) lie within om: 5 in the 903 Pad Area, 4 in the
Mound Area, and 11 in the East Trenches Areas. The historical activi,ties at the OU2 msss is
discussed below.
2.1.2.1 903 Pad Area
Five sites are located within the 903 Pad Area (Figure 2-2). These sites are:
e
903 Drum Storage Site (IHSS No. 112).
903 Lip Site 0 (IHSS No. 155).
eo
e
Trench T-2 Site (IHSS No. '109).
e
Reactive Metal Destruction Site (IHSS No. 140).
e
Gas Detoxification Site (IHSS No. 183).
Brief descriptions of each of these sites are presented below.
1.
903 Drum Storage Site (IHSS No. 112) - The site was used from 1958 to 1967
to store drums containing radioactively contaminated, used machine cutting oil.
The drums, some of which corroded and leaked, contained oils and solvents
contaminated with plutonium or uranium. Most of the drums contained lathe'
coolant consisting of mineral oil (Le., petroleum distillate oil) and caIbon
tetrachloride (CC4) in varying proportions. However, an unknown number of
drums contained, hydraulic oils, vacuum pump oils, trichloroethene (TCE),
tetrachloroethene (PCE), silicone oils, and acetone (Rockwell International,
o 1987a). Ethanolamine was also added to new drums after 1959 to reduce the
drum corrosion rate. All drums were removed by 1968.
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Figure 2-2
Remedial Investigation Areas and Individual Hazardous Substance Sites
SUBSURPACB JNTBRIM JtJ!MI!J)IAL ACTION PLAN
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After the droms were removed, efforts were made to scrape and move the
plutonium-contam;n!lted soil into a relatively small area, .cover it with fill
material, and top it with an asphalt containment cover. This remedial action was
completed in. November 1969. An esnlPated 5,000 gallons of liquid leaked into
the soil during use of the dmm storage site. The liquid was estimated to contain
86 grams of plutonium (Rockwell International, 1987a).
2.
903 Lip Site (IHSS No. 155) - During dmm removal and clean-up activities
associated with the 903 Dnun Storage Site, winds distributed plutonium to the
south and east of what is now the 903 Pad. Although most plutonium-
contam;n!lted soils were removed, iadioactive contam;narion is still present at the
903 Lip Site in the surficial soils.
3.
Trench T-2 Site (IHSS No. 109) - This trench was used prior to 1968 for the
disposal of sanitary sewage sludge and flattened dmms contam;n!lteil with
uranium and plutonium.
4.
Reactive Metal Destruction Site (IHSS No. 140) - This site was used during
the 1950s and 1960s primarily for the destruction of lithium metal (DOE, 1986).
Small quantities of other reactive metals (sodium, calcium, and magnesium) and
some solventS were also destroyed at this location (D1s1ey, 1983).
5.
Gas Detoxification Site (IHSS No. 183) - Building 952, located south of the
903 Drum Storage Site, was used to detoxify various bottled gases between June
1982 and August 1983. The gases consisted of: nitrogen oxides, chlorine,
hydrogen sulfide, sulphur tetrafluorroe, methane, hydrogen fluoride, and
ammonia. Gas detoxification was accomplished by using various commercial
neutralization processes available at the time. The neutralized gases released to
the environment during detoxification would no longer be detectable (Rockwell
International, 1987b).
. A Phase I RI has been completed for these five sites. Phase II was initiated in the fall of 1991.
2.1.2.2 Mound Area
The Mound Area is composed of four sites (Figure 2-2). These are:
.
Mound Site (IHSS No. 113).
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.
Trench T-l Site (IHSS No. 108).
Oil Burn Pit No.2 Site (IHSS No. 153).
.
.
Pallet Burn Site (IHSS No. 154).
These sites are individually described below.
1.
Mound Site (IHSS No. 113) - The Mound Site contained approximately 1,405
drums containing primarily depleted uranium- and plutonium-CODtaminated iathe
coolant (Le., petroleum distillate oil). Some drums aJ,so contained nperclenen
(Smith, 1975); perclene was a brand name of tetracbloroethene (Sax and Lewis,
1981). Some of the dnJIiuned wastes placed in the Mound Site were in solid
form (Rockwell International, 1987b). Initial remediation of the Mound Site was
accomplished in 1970, and the materials that were removed were packaged and
shipped to an off-site DOE facility as radioactive waste. Subsequent surficial
soils sampling in the vicinity of the excavated Mound Site indicated 0.8 to 112.5
disintegrations per minute per gram (dim/g) alpha activity. This radioactive
contamination is thought to have come froiD the 903 Dmm Storage Site via wind
dispersion rather than from the Mound Site (Rockwell International, 1987a).
2.
Trench T-l Site (IHSS No. 108) - The trench was used from 1954 unti11962
and contains approximately 125 drums filled with depleted uranium chips (Dow
Chemical, 1971) and plutonium chips coated with lathe coolant. The drums are
still present in this trench.
3.
Oil Bum Pit No.2 Site (IHSS No. 153) - Oil Burn Pit No.2 is actually two
parallel trenches that were used in i957 and from 1961 to 1965 to bum 1,082
drums of oil containing uranium (Rockwell International, 1987a). The residues
from the buming operations and some flattened drums were covered with backfill.
Initial remedial activities were peIformed in the 1970s .(RockwellInternational,
1987a). . .
4.
Pallet Bum Site (IHSS No. 154) - An area southwest of Oil Burn Pit No.2
was reportedly used to destroy wooden pallets in 1965. The types of hazardous
substances or radionuclides that may have been spilled on these pallets is
unknown. Initial remedial activities were peIformed in the 19708 (DOE, 1986).
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2.1.2.3 East Trenches Area
The East Trenches Area consists of nine burial trenches and two spray irrigation areas
(Figure 2-2). The trench numbers and their respective mss designations are:
. Trench T-3 - mss No. 110.
. Trench T -4 - mss No. 111.1.
. Trench T-5 - mss No. 111.2.
. Trench T -6 - mss No. 111.3.
. Trench T-7 - mss No. 111.4.
. Trench T -8 - mss No. 111.5.
. Trench T -9 mss No. 111.6.
. Trench T-I0 - mss No. 111.7.
. Trench T-11 - mss No. 111.8.
Trenches T-3, T-4, T-I0, and T-11 are located north of the east access road, and trenches T-5
through T -9 are located south of the east access road. The trenches were used from 1954 to
1968 for disposal of depleted uranium; flattened, depleted uranium- and plutonium-contaminated
droms; and sanitary sewage sludge. The wastes have not been disturbed since their burial.
mss numbers 216.2 and 216.3 are part of the East Trenches Area and are designated as msss
because they were used for spray irrigation of sewage treatment plant effluent. The historical
discharge of Pond B-3 was to this spray irrigation area. However, this practice has been
termin:ltM, and the current Pond B-3 discharge is sent to Pond 8-4.
2.1.3 Surroundinp Land Use and Population Densitv
The RFP property is located in a rural area. Approximately 50 percent of the area within 10
miles of the RFP is in Jefferson County. The remainder is located in Boulder County (40
percent) and Adams County (10 percent). According to the 1973 Colorado land Use Map, 75
percent of this land was unused or was used for agriculture. Since that time, portions of this
land have been converted to housing, with several new housing subdivisions being started within .
SUBSURFACE JNrERIM REMEDIAL ACI'ION PLAN
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a few miles of the Buffer Zone, southeast of the plant site. Land zoning is depicted in
Figure 2-3.
A demographic study, using 1990 census data, shows that approximately 1.9 million people lived
within the eight-county Denver metropolitan region. This region covers approximately 5,076
square miles and includes the following counties: Adams, Arapahoe, Boulder, Clear Creek,
Denver, Douglas, Gilpin, and Jefferson. The most populated sector is to the southeast, toward
the center of Denver. This sector had a 1989 population of approximately 600,000 people living
between 10 and 50 miles from Rocky FJats. Recent population estimateS registered by the
Denver Regional Council of Governments (DRCOO) for the eight-county Denver metro region
have shown distinct patterns of growth between the first and second halves of the decade. .
Between 1980 and 1985, the population of the 8-county region increased by 197,890, a 2.4
percent annual growth rate (DRCOO, 1989). Between 1985 and 1990 a population gain of
80,875 was recorded, representing a 0.9 percent annual increase. The 1990 population showed
an increase of 9,300 (or 0.5 percent) from the same date in 1989 (DRCOG, 1990).
The RFP property is approximately 3 miles (north-south) by 4 miles (east-west). Figure2-3
illustrates that this property consists of plant fa jties surrounded by an area of undeveloped land
known as the Buffer Zone (approximately 4,600 acres); The current and intended future use of
the Buffer Zone is as an undeveloped open area (i.e., "greenbelt.) (ABC, 1972). Use of the
Buffer Zone as a greenbelt serves to preselVe the. natural ecological .state of the land and
prevents development immediately adjacent to the plant area.
. There are eight public schools within 6 miles of the RFP. The nearest educational facility is
Witt Eementary School, which is approximately 2.7 miles east of the Plant Buffer Zone. The
closest hospital is Centennial Peaks Hospital, located approximately 7 miles northeast. The
closest park and recreational area is the Standley Lake area, approximately 5 miles southeast of
the Plant. Boating, picnicking, and limited overnight camping are permitted in the Standley
Lake Recreational Area. Several other small parks are located in communities within 10 miles
of the RFP. The closest major park is Golden Gate Canyon State Park, located approximately
15 miles to the southwest, providing 8,400 acres of general camping and outdoor recreation.
SUBSURFACE INTBR.IM REMEDIAL AcrION PLAN
ROCKY FLATS PlANT. OOLDBN, COLORADO
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LAND ZONING IN THE VICINITY
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FIGURE
2-3
SUBSURFACE INTERJM R1!MBD1AL AcnoN PlAN
ROCJCY PLATS PlANT, OOLDEN, COLORADO
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Other national and state parlcs are located in the mountains west of the RFP, but all are more
than 15 miles away.
Some of the land adjacent to the RFP is zoned for industrial development. Industrial facilities
within 5 miles include the former TOSCO (The Oil Shale Company) laboratory (40-acre site
located 2 miles south and now occupied by Analytica, Inc.), the Great Western Inorganics Plant
(2 miles south), the Frontier Forest ProductS yard (2 miles south), the IdeaIite Lightweight
Aggregate Plant (2.4 miles northwest), and the Jefferson County AUport and Industrial Park
(990-acre site located 4.8 miles northeast).
Several ranches are locateC 'vithin 10 miles of the RFP, primarily in Jefferson and Boulder.
Counties. They are operated to produce crops, raise beef cattle, supply milk, and breed and
train horses. According to the 1987 Colorado Agricultural Statistics, 20,758 acres of crops were
planted in Jefferson County (total land area of approximately 475,000 acres), and 68,760 acres
of crops were planted in Boulder County (total land area of 405,760 acres). Crops consisted of:
winter wheat, com, barley, dry beans, sugar beets, hay, and oats. Livestock consisted of:
5,314 head of cattle, 113 hogs, and 346 sheep in Jefferson County; and 19,578 head of cattle,
2,216 hogs, and 12,133 sheep in Boulder County (Post, 1989).
2.2
AFFECTED ENVIRONMENT
2.2.1 Phvsical Environment
The natural environment of the RFP and vicinity is priDiarily influenced by its proximity to the
Front Range of the Rocky Mountains. The RFP is located directly east of the north-south
trending Rocky Mountains at an elevation of approximately 6,000 feet above mean sea level.
The RFP is located On a broad, eastward-sloping plain of overlapping alluvial fans. These fans
extend approximately 5 miles east of the Front Range and terminate where gentle slopes break
to low rolling hills. The Continental Divide is approximately 16 miles west of the RFP. The
operational area at the RFP is located near the eastern edge of the fans on a terrace between the
streamo<:ut valleys of North Walnut Creek and Woman Creek. The Rocky Flats Alluvium (the
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deposit of coalescing alluvial fans) is exposed at the surface and consists of a topsoil layer
underlain by as much as 100 feet of silt, clay, sand, and gravel.
Mineral resources found in the vicinity of the RFP include: sand, gravel, cmshed rock, clay,
coal, and uranium. There are no known clay, coal or uranium deposits within the RFP Buffer
Zone; however, these commodities are mined within 20 miles of the plant. The Schwartzwalder
Uranium Mine is located approximately 4 miles southwest of the RFP. This mine has been the
largest producer of vein type uranium ore in Colorado and ranks among the siX largest of this
type in the United States (DOE, 1980). Active sand and gravel mines lie within the Buffer Zone
. boundaries. In addition, there is an aggregate processing facility adjacent to the northwest
comer of the Buffer Zone that reopened in 1989. Oil and natural gas production is also active
in nearby northwest Adams County and east central Boulder County.
Oil and natural gas activities near the RFP site includes oil field developments, pipeline, and
production operations. The closest major oil and gas fields are in northwest Adams County
(Jackpot and Spindle Fields), and in east central Boulder County (Boulder Field). A natural gas
pipeline, which originates in Wyoming and proceeds across eastern Colorado into Oklahoma,
is located approximately 10 miles north of the RFP in southern Boulder County. Local natural
gas pipelines cross the south side of the RFP. The nearest refinery operation is the Conoco
Refinery located in Commerce City about 20 miles east of the RFP. A north-south oriented oil
pipeline feeds into the refinery from fields in northeastern Colorado and southeastern Wyoming
(Donaldson and MacMillan, 1980).
There are four main drainages within the RFP property as shown in Figure 2-4. North Walnut,
South Walnut, Rock, and Woman Creeks all have intermittent streams. These drainages enter
downstream reservoirs that provide drinking and irrigation water. There are a number of ditches
crossing the area that convey water collected off site to other areas of the RFP, Walnut Creek,
or Woman Creek. Until late 1974, Plant wastewater had been discharged into Walnut Creek,
and unti11975, filter backwash from the raw water treatment plant went into Woman Creek.
All: process wastewater is now either recycled or disposed through evaporation. Evaporation
residues are solidified by the addition of Portland cement, characterized, and subsequently
SUBSURFACE INTERIM REMBDIAL ACl'ION PLAN
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OPERABLE UNIT NO. 2
SUBSURfACE IM/IRA
,1
ROCKY FLATS PLANT
BOUNDARIES AND BUFFER ZONE
FIGURE 2-4
Jon
-------
managed according to RFP waste management operating procedures. Sanitary wastewater is
discharged in accordance with the RFP's NPDES permit effluent requirements.
2.2.2 Remonal and Local Hvdro8eoloIV
The stratigraphic section that pertains to the RFP includes, in descending order, unconsOlidated
surficial units (Rocky Flats Alluvium, various terrace alluviums, valley fill alluvium, and
colluvium) (Figure 2-5), Arapahoe Formation, Laramie Formation, and Fox Hills Sandstone
(Figure 2-6). Ground water oCcurs under unconfined conditions in both. the surficial and shallow
bedrock units. In addition, confined ground-water flow occurs in deeper bedrock sandstones.
. 2.2.2.1 Alluvial Materials
The Rocky Flats Alluvium underlies a large portion of the RFP. The alluvium is a broad planar
deposit consisting of a topsoil layer underlain by up to 100 feet of poorly stratified silt, clay,
sand, gravel, and cobbles.
Unconfined ground-water flow occurs in the Rocky Flats Alluvium, which is relatively
permeable. Recharge to the alluvium occurs from precipitation, snowmelt, and water losses
from ditches, streams, and ponds that are cut into tile alluvium. General water movement in the
Rocky Flats Alluvium is from west to east and toward the drainages. (Ground-water flow is
also controlled by paleochannels in the top of the bedrock.) The water table in the Rocky Flats
Alluvium rises in response to recharge during the spring and declines during the remainder of
the year. Discharge from the alluvium occurs at minor seeps in the colluvium that covers the
contact between the alluvium and bedrock along the edges of the valleys. om is situated on
a terrace of Rocky FI8ts Alluvium that thins to the east of the RFP, and does not directly supply
water to wells located downgradient of the RFP.
Various other alluvial deposits occur topographically below the Rocky F1ats Alluvium in the
Plant drainages. Colluvium (slope wash) mantles the valley side slopes between the Rocky Flats
. .
Alluvium and the valley bottoms. In addition, remnants of younger terrace deposits, including
SUBSURFACE nnmtIN ItEMBDIAL AcnON PLAN
ROCKY PlATS PlANT. GOLDEN. COLORADO
ec4c1a8-ir8p\fiD8M\8ec.2.1cp
FJNAL
ScpIcmbcr 1992
-------
oIa~'"
f~~
~. :9 ~
.3»
f~f,]
~~!
~~I
,~
8»
~~
~
RJ7083,PJ-G12782
~
]
J-
i 400
J -
!
if
t;>-
.!
WEST
ROCKY F1A1S PI.Nn' SIIE
-
uvlum
Verdol Alluvium
. f.. "..""""""".........~...........
TtmIOI Alluvium
J.'
Slocum Alluvium ( ") (
- - -' ',,',' """""""""""""""""'".., . Louvfer8 MINIum Pre-
UODaIf SIRFAu CRADfEHr N;fto,a;m;; .;;;;-PfR- - - - '. ". :.,. .\" ~=
. ~~I . UII.£ - -
o
u.s. DEPARTMENT OF ENERGY
Rocky Flat PJant
Golden, Colorado
. ,
'1 ...':- .J .
,.'
EROSIONAL SURFACES AND ALLUVIAL DEPOSITS
EAST OF THE FRONT RANGE
COLORADO
Val'" FDI
J
")
:;::r; Po8t-
Abrum =
AlluvIum
~:~~i!..~\~..\\\'..\\\\.............
FJS1'
NOT 10 SCALE I
(att.: Scott. 1810)
January 1992
FIGURE
-------
~~ -.
~~ .(L
t,\.~""~
f:)~ ~V' P
~~~~~
Rocky Flats Alluvium
0-98'
..s II: o-xrZ.
..s f2: 0-111'
..s IJ: 0-11'
..s f4: 0-15'
..s f5: o-e'+'
(f)
(?)
(?)
m
-------
-------
Arapahoe Fonnation
250' (?)
b8aI I11III: 1+-37'
295 --
-------
-------
-------
In
:::I
-------
-------
-------
o
CI)
u
-:-:-..
-------
~ HInd
I,(f1'
------
-------
------
o
-------
------
....
-------
CI)
------
...
-------
u
-
-------
Laramie Formation
692'
-- InIrftII
285'
Fox Hills Sandstone
80'
1080
Pierre Shale & Older Units
...
GO
....
...
o
I
A:
...
...
o
....
':!
U.S. DEPARTNENT OF ENERGY
Rocky Flats Plant
Golden, Colorado
LOCAL STRATiGRAGHIC SECTION
OF THE ROCKY FLATS PLANT
2-6
SUBSURFACE INI'I!JUM RBMEDIAL ACJ'JON ~
ROCKY PLATS PlANT, GOLDEN. COLORADo
cc.t&\u-inp\fiDaMIlcc-2.1cp
PINAL
~~
~.
11) IIIr1Itd ftuvIaI ......
H8MIt; ...... InI8MIt mil)' lie ,.oowd. and ba8aI -.s
II aftIn $ --..
Claystones, Siltstones, and CoaJ-
IIDaWIc, IgIIt III IIIIIIam A .,.. and ..... and
- dark A III IIIadt wboo II ~ tI8 (2')
OMIt ... '*' ~ -*lane Int8ft8
Sandstones
. III .... J"I!. ~ III - "..a..d, paartr- III
1I...dInDtJ ... _. IINnaIIn cpI'tZItIc IIandItDne db -
1InIIcIMr. ~ ... b8dt and - IIIat ,... frIIm
r '** In .. ~ .. ... III 8' '** at 1111 bI8t .-
1111 -- InIInaI
Sandstones-
;;:1ItI_~I:i~ c. ~ "" pn.d. IUIIIa8Idtd.
EXPlANATION
II MnUn . Coal
o ::::- a -- m fN-9dntd-*lane
EI SIttIIn8 CIIII ...... ~ SII!J ....
(1) ., ......... ......, u...,.MIIDI.
... ~ cIaID.
n;uRE
~1992
-------
the Verdos, Slocum, and Louviers Alluvia, occasionally occur along the valley side slOpes.
Recent valley fill alluvium occurs in the active stream channels.
Unconfined ground-water flow occurs in these surficial units. Recharge is from precipitation,
percolation from streams and ditches during periods of surface water runoff, and by seeps.
discharging from the Rocky Flats Alluvium. Discharge is by seepage into other geologic
formations and streams, and by evaporation where the water table approaches the ground
surface. The direction of ground-water flow is generally downslope through colluvial materials
and then along the course of the stream in valley fill materials. During periods of high surface
water flow, water is lost to bank storage in. the valley fill alluvium and returns to the stream
after the runoff subsides.
. 2.2.2.2 Bedrock Materials
The Cretaceous Arapahoe Formation underlies surficial materials beneath the Plant. This
formation is a fluvial deposit composed of overbank and channel deposits. It primarily consists
of claystone with some sandstone and is nearly flat lying beneath the Plant (less than a 2-degree
dip) based on the draft seismic profiling report (Rockwell International, 1989a). The sand
bodies within the claystone are composed of fine-grained sands and silts, and their hydraulic
conductivity is relatively low compared to the overlying Rocky FIats Alluvium. Total formation
thickness varies up to 270 feet (Robson, Romero, and Zawistowski, 1981).
The Arapahoe Formation is recharged by ground-water movements from overlying surficial
deposits and by leakage from streams. The main recharge areas are under the Rocky FIats
Alluvium, although some recharge from the colluvium and valley fill alluvium is likely to occur
along the stream valleys. Recharge is greatest during the spring and early summer when rainfall
and stream flow are at a maximum and water levels in the Rocky FIats Alluvium are high..
Ground-water movement in.the Arapahoe Formation is generally toward the east, although flow
within individual sandstones is not fully characterized at this time. Regionally, ground-water
flow in the Arapahoe Formation is toward the South Platte River in the center of the Denver
Basin (Robson, Romero~ and Zawistowski, 1981).
SUBSURFACE INTBIIIM RENEJ)IAL AcrJON PLAN
R.OCKY FLATS PLANT, OOLDEN, COLORADO
cg.tc'-inp\liaal4\8c1c-2.1Cp
PINAL
ScptaDkr 1992
-------
The Laramie Formation underlies the Arapahoe Formation and is composed of two units, a thick
upper claystone and a lower sandstone. The claystone is greater than 700 feet thick and is of
very low hydraulic conductivity; therefore, the U.S. Geologic Survey (Hurr, 1976) concludes
that RFP operations will not impact any units below the upper claystone unit of the Laramie
Formation.
The lower sandstone unit of the Laramie Formation and the underlying Fox Hills Sandstone
comprise a regionally important aquifer in the Denver Basin known as the Laramie-Fox Hills
Aquifer. Aquifer thickness ranges from 200 to 300 feet near the center of the basin. These
units subcrop west of the Plant and can be seen in clay pits excavated through the Rocky Flats
Alluvium. The steeply dipping beds of these units west of the Plant (approximately a SO-degree
dip) quickly flatten to the east (less than 2-degree dip) based on pre1iminary results of the high
resolution seismic reflection study (Rockwell International, 1989a). Recharge to the aquifer
occurs along the rather limited outcrop area exposed to surface water flow and leakage along the
Front Range (Robson, Wacinski, Zawistowski, and Romero, 1981). In the vicinity of the RFP,
this would occur west of the Plant where the units subcrop.
Sixteen wells were completed in various zones within bedrock during the 1987 drilling program
at om. Although claystone was the most frequently encountered lithology immediately below
the alluviumlbedrock contact, interbedded sandy, silty, and lignitic units with both gradational
and sbaIp contacts were present as well. All of the bedrock encountered directly beneath
surficial materials was weathered, and some saturated sandstones were encountered.
2.2.3 Site BvdrolO2V
The following discussion of the site hydrology of om includes ground water that occurs in
surficial and bedrock materials, and surface water drainage patterns of the Woman Creek and
South Walnut Creek drainages.
SUBSURJIACE INTERIM REMEDIAL AcnON PLAN
JtOCXY FLATS PlANT, OOLDBN, (Xn.oRADO
qa,\u-inp\fiDal4'-o-2.1cp
PINAL
Scpcombcr 1992
-------
2.2.3.1 Ground Water .
Ground water occurs in surficial materials (Rocky FIats Alluvium, colluvium, and valley fill
alluvium) and in Arapahoe sandstones and claystones at om. These two flow systems, which
are hydraulically connected at shallower portions of the Arapahoe Formation, are discussed
sepamtely below.
Ground Water in Surficial Materials
Ground water is present in the Rocky FIats Alluvium, colluvium, and valley fill alluvium under
unconfined conditions. Recharge to the water table occurs as infiltration of incident precipitation
and seepage from ditches and creeks. In addition, detention ponds along Woman Creek and
South Walnut Creek recharge the valley fill alluvium. Figure 2-7 shows the potentiometric
surface of the uppermost ground water measured between April 4 and April 8, 1988, and the
locations of alluvial and bedrock wells in the vicinity of om. The potentiometric surface
during April 1988 is typical of the spring time water table at om.
The shallow ground-water flow system is quite dynamic with large water level changes occurring
in respOnse to precipitation events that influence stream and ditch flow. For example, between
mid-April and September 1986 water levels in wells 1-86 and 4-86 (completed in valley fill
alluvium) dropped more than 4 and 8 feet, respectively. . Alluvial water levels are highest during
the months of May and June then decline during late summer and fall with some wells going
completely dry. Ground-water flow in the Rocky Flats Alluvium is generally from west to east,
following the surface of the claystone bedrock.
Alluvial ground water discharges to seeps, springs, surface water drainages, and subcropping
. Arapahoe Sandstone at om. Seeps and springs occur along the edge of the Rocky FIats
Alluvium terrace (at the aIluviumlbedrock contact) and on the side slopes of the termce. Seeps
and springs on the terrace side slopes may be due to thinning of colluvial materials. Ground
water in colluvial materials south of the 903 Pad and East Trenches Areas discharges to the
South Interceptor Ditch (SID), and ground water in valley fill materials discharges to Woman
or South Walnut Creeks.
SUBSUlU'ACB INI'ERlM JtEMl!DIAL ACI'ION PLAN
ROCKY FLATS Pl.ANT, OOLDEN, COLORADO
cc&CID-inp\fiaal4'--2.1Cp
PINAL
ScpIc:mbcr 1992
-------
Figure 2-7
Potentiometric Surface of the Unconfined Ground-Water Flow System
SUBSURFACE JN1'EIUM RBMEDIAL AcnoN PLAN
ROCKY PLATS PtANT, GOLDEN, COLORADO
CC&c\u-inp\fial)4\1cc-1.1q1
PINAL
ScpIr:aIbcc 1992
-------
Hydraulic conductivity values for surficial materials were estimated from drawdown-recovery
. .
tests performed on 1986 wells during the initial site characterization, and from slug tests
performed on seiected 1986 and 1987 wells during the Phase I RI (Rockwell International, .
1987a). Mean hydraulic conductivities are 4 x lQ4, 7 x 1~, and 9.5 x lO-s centimeters per
second (cmIs) for Rocky Flats, Woman Creek Valley Fill, and South Walnut Creek Valley Fill
Alluvium, respectively.
Bedrock Ground Water
Due to their relatively high permeability, the meandering lenticular sandstones contained within
the cJaystones (i.e., the basal formation) provide the greatest potential for ground-water flow in
the Arapahoe Formation. Flow within individual sandstoilt~s is assumed to be from west to east,
but the geometry of the bedrock ground-water flow path is not fully understood at this time due
to its dependence upon the continuity of the sandstones and their hydraulic interconnection
(Robson, Romero, and Zawistowski, 1981). Evaluation of the lateral extent and degree of
interconnection of the sandstone units is a primary goal of the Phase n Bedrock RI for om.
Ground water recharged to sandstones occurs as infiltration from alluvial ground water where
sandstones subcrop beneath the alluvium and by leakage from claystones overlying the
sandstones. Ground water from the basal formation of the Aiapahoe aquifer is used for
irrigation, livestock, watering, and domestic purposes. Wells are located east of the RFP within
the Denver Basin.
There is a strong downward gradient between ground water in surficial materials and bedrock.
Vertical gradients range from 0.31 feet per foot (ftlet) between wells 35-86 and 34-86 to
1.05 ftlft between wells 41:-86 and 40-86. These gradients imply a relatively higl1 hydraulic
conductivity contrast between the surficial materials and bedrock, which is supported' by
hydraulic conductivity test results.
2.2.3.2 Surface Water
Surface water drainage patterns at the RFP are shown on Figures 2-2 and 2-4. A discussion of
the major om surface water features, including the Woman Creek and South Walnut Creek.
SUBSURFACE INTERIM Jtl!MEDIAL AcrION PLAN
ROCKY FLATS PLANT, OOLDEN, COLORADO
cc"c'-inp\liD8l4'--2.1Cp
FINAL
ScpIaDbcr 1992
-------
drainages, is presented below. Collection and treatment of the South Walnut Creek Basin
surface water and seepage is being addressed in the IM/IRA (EG&G, 1991f) discussed in
Section 1.
Woman Creek
Woman Creek is located south of the Plant, with headwaters in largely undisturbed Rocky Flats
Alluvium. Runoff from the southern part of the Plant is collected in the SID located north of
the creek and delivered downstream to Pond C-2 (see Figure 2-2). Pond C-1 (upstteam of C-2)
. receives stream flow from Woman Creek. Flow in Woman Creek is also influenced by
diversion of water from Rocky Flats Lake into the creek: by local landowners. The discharge
from Pond C-1 is diverted around Pond C-2 into the Woman Creek channel downstream. Water
in Pond C~2 is treated and monitored prior to discharge. Discharge from Pond C-2 is in
accordance with the Plant's NPDES permit (discharge point 007). Historically, discharge from
Pond C-2 bas been to Woman Creek; however, since October of 1989, treated water is being
pumped to the South Walnut Creek drainage and flows off site via the Broomfield Diversion
Canal.
Flow in Woman Creek and the SID is intermittent.
investigation crews since 1986.
This bas been observed by field
South Walnut Creek
The headwaters area of South Walnut Creek bas been filled during consttuction of RFP facilities.
M a result, flow originates from a buried culvert located in the east-central portion of om,
west of Building 991. Flow in the upper reach of South Walnut Creek is directed to the south
of Building 991 and under the Protected Area (PA) fence by a buried, corrugated metal culvert.
The culvert outlet is located in the South Walnut Creek drainage approximately 500 feet
downgradient of the P A fence near the discharge of the sewage treatment plant. A concrete
culvert and a second corrugated metal culvert also discharge into. the South Walnut Creek
. .
drainage jusi downgradient of the P A fence and north of the Mound Area. The flow from the
concrete culvert originates as seepage from the hillside south of Building 991 and flows into a
SUBSURI'ACB INTBIUM RBMBDIAL ArnON PLAN
ROCKY F1.<\TS PLANT. OOLDEN, COLORADO
cg&,IsHnp\liaal4\se1>-2.scp
PINAL
ScpCaDkr 1 !in
-------
ditch along the slope. The corrugated metal culvert drains Plant runoff that collects in a
drainage south of the P A. The combined flow then enters the South Walnut Creek detention
. .
pond system. Below the detention ponds, South Walnut Creek, North Walnut Creek, and an
unnamed tributary join within the Buffer Zone to form Walnut Creek. Flow is routed around
Great Western Reservoir by the Broomfield Diversion Canal. Great Western Reservoir is
located approximately 1 mile east of this confluence and is a primary drinking water source for
the residents of Broomfield.
The South Walnut Creek detention pond system cons~ of five ponds (B-1, B-2, B-3, B-4, and
B-5) that retain surface w~r runoff and RFP discharges for flood control, monitoring, and
treatment prior to downstream release. All flow in the pond system is eventually detained in .
Pond B-5, where it is treated and monitored prior to discharge. Water is discharged from
Pond B-5 in accordance with the Plant NPDES permit (discharge point 006). Ponds B-1 and
B-2. are reserved for spill control, surface water runoff, or treated sanitary waste of
questionable quality. Pond B-3 is used as a holding pond for sanitary sewage treatment plant
effluent. The historical discharge of Pond B-3 was ~ spmy irrigation system located in the
vicinity of the East Trenches; however, this pmctice has been terminated and current Pond B-3
discharge is routed to Pond B-4. In addition to Pond B-3 discharge, Ponds B-4 and B-5 receive
surface water runoff from the centIal portion the RFP. The surface water runoff received by
Pond B-4 is collected by the CentIal Avenue Ditch and the South Walnut Creek Drainage;
2.2.4 Meteorolol!V and Climatoloev
The area surrounding the RFP has a semiarid climate characteristic of much of the centIal Rocky
Mountain region. Approximately 40 percent of the IS-inch annual precipitation falls during the
spring season, much of it as snow. Thunderstorms (June. to August) account for an additional
30 percent of the annual precipitation. Autumn and winter are drier seasons, accounting for
. 19 and 11 percent of the annual precipitation, respectively. Snowfall averages 85 inches per
year, falling from October through May (DOE, 1980). Temperatures are moderate; extremely
warm and cold weather is usually of short duration. On the aver.ige, daily summer tempeIatures
mnge from 55°P to 85°P, and winter tempeIatures mnge from 200P to 45°P. The low avemge
relative humidity (46 percent) is due to the blocking effect of the Rocky Mountains.
SUBSURFACE INI'BlUM REMEDIAL AC1'JON PlAN
ROCKY PLATS PLANT, GOLDEN, COLORADO
cc&C\u-inplfiDal4\1ec-2.acp
PINAL
ScpIaDbcr 1992
-------
Wind, temperature, and precipitation data are collected on Plant site and summarized annually.
Table 2-1 presents the 1990 annual summary of the percent frequency of wind directions (16
compass points) divided into 6 speed categories. . These frequency values are represented
graphically in Figure 2-8. Winds at the RFP are predominantly northwesterly. Winds greater
than 4.18 meters per second (mIs) (9.2 miles per hour [mph]) with easterly components occur
with a low frequency. The Pasquill Stability Class D represents the prevailing meteorological
conditions for the RFP (EG&G, 1991a), and average downwind directional frequencies.
Special attention has been fOCused on dispersion meteorology surrounding the, Plant due to the
remote possibility that significant atmospheric releases might affect the Denver metropolitan
. area, which is located in the predominant downwind (southeast) direction. Studies of air flow
and dispersion characteristics (e.g., Hodgin, 1983 and 1984) indicate that drainage flows (winds
. coming down from the mountains to the west) turn and move toward the north and northeast
along the South Platte River valley and pass to the west and north of Brighton, Colorado (DOE,
1980), which is just north of Denver.
2.2.5 Ecolor
The RFP site includes species of flora representative of tall grass prairie, short grass plains,
lower montane, and foothills ravine regions; It is evident that the vegetative cover along the
Front Range of the Rocky Mountains has been altered by human activities such as burning,
timber cutting, road building, and overgrazing for many years. Since the acquisition of the RFP
property, vegetative recovery has occurred as evidenced by the presence of grasses such as big
bluestem. and sideoats grama (two disturbance-sensitive species). No vegetative stresses
attributable to hazardous waste contamination have been identified (DOE, 1980).
The animal life inhabiting the RFP and its buffer zone consists of species associated with western .
prairie regions. The most common large mammal is the mule deer with an estim~tPLI population
between 100 to 125 permanent residents. There are a number of small carnivores, such as the
coyote, red fox, striped skunk, and long-tailed weasel. A profusion of small herbivore species
can. be found througho~t the RFP and Buffer Zone such as the pocket gopher, white-tailed
jackrabbit, and the meadow vole (DOE, 1980).
SUBSURPACE INTERIM REMEDIAL AcnoN PlAN
R.OCKY PLATS PLANT, GOLDEN, COLOR.AJ)()
cca,\u-inplfiD8J4'-:-2.scp
FINAL
Scpccmbcr 1992
-------
Table 2-1
Rocky Flats Meteorological Monitoring Station
60 Meter Tower
January 1, 1990 to December 31,1990
W'md Frequency Distribution by Percent - StabilitY Class D
10 Meter Leve1
Wmd Speed Classes (Knots)
Wmd 3.0 - 6.0. 10.0. 16.0 -
Direction <3.0 <6.0 <10.0 <16.0 <21.0 ;?:21.0 CIass- Totalb
N 0.8 2.9 3.4 1.6 0.2 0.2 9.29 9.25
NNE 1.1 35 2.9 1.0 0.0 0.0 852 8.49
NE 1.1 33 1.6 03 0.0 0.0 631 6.29
ENE 1.0 23 .8 0.1 0.0 0.0 4.20 4.19
E 1.4 3.0 .7 0.0 0.0 0.0 5.06 5.04
ESE 09 2.7 1.9 0.1 0.0 0.0 5.60 5.58
SE 0.9 35 3.6 0.6 0.0 0.0 857 854
SSE 0.8 25 2.6 0.6 0.1 0.0 6.66 6.64
S 0.7 2.0 15 05 0.1 0.0 4.79 4.78
SSW 05 1.2 1.0 03 0.1 0.0 3.09 3.08
SW 03 1.2 U 0.4 0.1 0.0 3.29 3.28
WSW 0.4 1.1 1.2 1.0 0.4 03 4.25 4.24
W' 05 1.1 1.1 1.6 1.1 15 6.89 6.87
WNW 05 ,13 15 3.0 1.8 1.6 959 9"::
NW 0.7 1.6 2.1 23 0.7 0.2 754 751
NNW 0.6 1.9 2.6 1.1 0.1 0.0 634 632
All 12.1 35.0 29.7 14.6 4.7 3.9 100.00 99.64
. Total Pe!Cellt for this stability class
. Total pe!Cell~ relative to aU stability classes (A tbJOugb ~
Total Number of ilMlid obseMItioas in this stability class = 18
Total Number of valid obscrvatioas in this stability class = 18,240
Joint Data RceoYery Rate = 99.9%
SUBSURPACE N1'BRIM ltEMBJ)IAL ACI'ION.PLAN
ROCKY PLATS PLANT, OOLDBN, COLORADO
cg&CIaHnp\fiaIM\8cc-2.1Cp
PINAL
Scpumbcr 1 m
-------
..
! -
i
N
w
s
>15
7-15 3-7
(mIl)
1-3
=
~
y
u.s. DEPARTMENT OF ENERGY
Rocky Flats Plant
Golden, Colorado
1990 ANNUAL WIND ROSE
FOR THE ROCKY FlATS PLANT
:::II
I
.e
SUBSURPACE IN1'J!JUM RBMJ!l)1AL AcnON PlAN
ROCICY PlATS PLANJ', OOLDEN. COLORADO
CS&,Ia-inpIfiaaM--2.1ep
PINAL
ScpIcmbcr 1992
Pogc2-25
E
January 1992
FIGURE
-------
Woman Creek supports an aquatic biota typical of high-prairie streams. Due to the low nutrient
content in Woman Creek, the stream supports only small algal populations. Cattails and bullrosh
are also present. The rocky bottom of Woman Creek supports a relatively diverse biota
composed of may flies, caddis flies, and other forms typical of clean water streams. Redside
dace minnows are abundant in the streams and ponds; a few bluegill are also present (DOE,
199Oa).
Bull snakes and rattlesnakes are the most frequently observed reptiles. Eastem yellow-bellied
racers have also been seen. The eastem short-homed lizard has been reported on Plant site, but
these and other lizards are not commonly observed. The westem painted turtle and the westem
plains garter snake are found in and around many of the poilds (DOE, 1980).
Commonly observed biIds include westem meadowlarla, homed larla, morning doves, and
vesper sparrow. A variety of ducks, killdeer, and red-winged blackbiIds are seen in areas
adjacent to ponds. Ma1lards and other ducks frequently nest and raise young on several of the
ponds. Common biIds of prey in the area include marsh hawks, red-tailed hawks, common
birds of prey, rough-legged hawks, Swainson's Hawks, Great Homed Owls, and Burrowing
Owls (DOE, 1980).
2.2.6 Threatened and EndaD2ered Species
Relevant laws and regulations that protect threatened and endangered species include: NEP A
of 1969, the Endangered Species Act (ESA) of 1973 (Public Law 93-0205), the Clean Water Act
(CWA) as amended (33 U.S.C. 1251), and the Migratory Bird Treaty Act (16 U.S.C.1701-711).
Federal agencies must ensure that actions authorized, funded, or canied out by them will not
jeopardize the continued existence of any endangered or threatened species (EG&G, 1991g).
Studies were conducted at the RFP to identify potential habitat for threatened and endangered
species and other species of'special concern (EG&G, 1991e). A literature search was conducted
to obtain information on sensitive species that may be present at the RFP and data on habitats
present on the site. Information on endangered species was obtained from the U.S. Fish and
SUBSURFACE INTERIM REMEDIAL ACI10N PLAN
IlOCKY PlATS l'l.ANT. OOLDEN. COLOIlAJ)()
cc&C\u-inp\fiaaM'--2.aqo
FINAL
SepIaDber 1992
-------
Wildlife Service (USFWS). The u.S. Army COlpS of Engineers (COB) was contacted for
information on wetland plant species. The Colorado Natural Areas Program and Colorado
Division of Wildlife were contacted for information on state plant and animal species of special
concern (EG&G, t991e).
Habitat potentially suitable for four sensitive plant species: the Colorado butterfly plant (Gaura
1U!omexicana var. coloradensis), the diluviuJn lady's tresses orchid (Spiranzhes diluviaJis) the
forktip threeawn (Aristida basiramea) and the toothcup (Rotala ramosior), is also present on the
RFP site. However, no individuals of these species were ObseIVed during the reconnaissance
suIVeys.
The bald eagle (Haliaeetus leucocephalus) was identified to occasionally use habitat between 0.3
- and 1.1 miles from the RFP site during the winter months. Habitat use by bald eagles on the
site is expected to be casual, if it occurs at all. No bald eagle nests occur on the RFP site
(DOE, 199Oa).
Results of RFP studies also indicate that habitats potentially suitable for the endangered peregrine
falcon (Falco peregrinus) and the fenuginous hawk (Buteo regalis) are present at the RFP site
(EG&G, t991g). Although the peregrine falcon was not ObseIVed during the reconnaissance
level suIVeys, two historic eyries are present within-tO miles of the RFP site. The Peregrine
Falcon Recovery Plan (USFWS, 1984) discourages land-use practices that would adversely alter
the character of their hunting habitat or prey base within a to-mile radius of a nesting cliff
(including historical sites).
Potentially suitable habitat is also present for six sensitive wildlife species, including: white-
faced ibis (Plegadis chicJu), -fenuginous hawk (Buteo regaJis), mountain plover (Charadrius
montanus), long-billed curlew (Numenius americanus), Preble's meadow jumping mouse (Zapus
hudsonius preblez), and swift fox (Vulpes velox). Insufficient information is available to
determine if habitat for the sensitive species Texas homed lizard (Phymosoma comutUm) is
present on the RFP site. Prior to undertaking actions that may affect potentially suitable habitat,
focused suIVeys will be conducted to determine if sensitive wildlife species are present~
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The results of the aforementioned studies that pertain to fauna indicate that habitat potentially
suitable for the endangered black-footed ferret (Musrele nigripes) is present on the RFP site.
Black-footed ferrets require prairie dog colonies or complexes of smaller prairie dog colonies
as habitat. In the northeast area of the plant site, approximately 15 acres were identified as a
prairie dog colony location. These 15 acres are part of a larger colony comprised of an
estimated 47 acres that is dissected by Highway 128. This acreage is part of a 753-acre complex
that primarily occurs east of Indiana Street. Aithough the 47-acre colony by itself is insufficient
to support black-footed ferrets, the larger complex is potentially suitable habitat for ferrets. This
753-acre complex is fragmented by several major roads and highways. No confirmed sightings
have been reported for this area, but several unconfirmed sightings have been reported for the
Denver area. Surveys of the 753-acre complex may be required to determine if the 15 acres .
present on the RFP site is habitat for the black-footed ferret. Surveys will be required only if
potential development directly impacts this colony. Based upon the information gathered for this
survey, the USFWS is not considering the area of the RFP site as a re-introduction site for
black-footed ferrets.
2.2.7 Sensitive Environments - Wetlands and Floodplains
The relevant laws and acts which protect wetlands and floodplains include: NEPA, Executive
Order (E.O.) l1~Protection of Wetlands; all pe~ent sections of the CWA; the Fish and
Wildlife Act plus assocmted coordination acts; and regulations promulgated under 10 CFR Part
1022 - DOE Compliance with Floodplain WetIands Environmental Review Requirements. The
roles promulgated under NEPA 42 U.S.C. 4321, et seq., in 40 CFR parts 1500 through 1508
state that all federal agencies are required to consider the environmentaleft'ects to wetIands and
floodplains for any proposed action (EG&G, 199Od).
Aerial photography for the 903 Pad, Mound, and East Trenches Areas was e"amined for
. .
. .
wetlands identification, followed by limited site inspection (EG&G, 199Oa). Wetlands have also
been identified along both the Woman Creek and SID drainage areas (EG&G, 199Oa). The SID
receives surface water nmoff from the southern part of the RFP facility with additional
contributions from om. However, dIainage contribution to the SID from om is minimal.
Evenly spaced drop structures along the SID have lowered flow velocities, increased sediment
SUBSURPACB JNTBRIM RBMBDIAL AcrION PLAN
IlOCKY PlATS PlANl', GOWEN, COLOItAJ)()
ccAaID-inp\fiuMu-1.oep
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accumulation, and created fairly dense linear stands of wetlands. From a point due south of the
903 Pad and extending to Pond C-2, approximately 0.15 acres of wetlands are contained within
this portion of the SID. Two isolated stands of wetlands have also been identified southeast of
mss 140, where ground water emerges as seeps or springs. These two areas are each less than
500 square feet in size. Wetland species observed were primarily common cattails (Typha
imifolia) (greater than 95 percent predominance), spike msh (Eleocharis macrostachya) and
bulhush (Scirpus americanus). The wetlands primarily function as flow attenuation features with
. additional minor contributions to wildlife habitat and water quality enhancement. Drainage
contribution to the SID from om is minimal.
A detailed floodplain analysis has delineated a narrow, l00-year floodplain along the linear
channel configuration of Woman Creek estimattYi to be lOO-feet wide (DOE, 1991a). Woman
Creek is an intermittent stream flowing primarily in response to precipitation events and
interaction between surface water and shallow ground water. Initial site characterization studies
completed in 1986 record measurable flow occurrences only at 4 of the 11 gauging stations along
the drainage. Flow data for each of the four gauging stations was less than 10 gallons per
minute (DOE, 1990a).
Each of the proposed actions for the Subsurface IMIIRA, along with their anticipated impacts
to floodplains and wetlands, are described in Section 4. However, since the proposed actions
are not located in the above described floodplains or wetlands, it should. be noted that the
provisions of 10 CPR 1022,' DOE Compliance with FloodplainlWetIands Environmental Review
Requirements, do not apply.
2.2.8 Cultural Resources
NEPA (1969), the National Historic Preservation Act of 1966 (Public Law. 89-665), and
subsequent law amendments (Public Laws 91-243, 93-54, 94-422, 94-458) provide that all
federal agencies implement prograins for the protection of cultural resources.
A Cultural Resources Survey of the RFP was conducted between 31 May and 23 June 1991 that
identified 45 cultural resources, none of which were recommended as eligible for listing on the
SUBSURFACE INTERJM REMBDIAL ACTION PLAN
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National Register of Historic Places (EG&O, 1991a). In addition to the 45 sites located during
. .
the 1991 survey, there are six previously identified historic sites that were previously determined
not to be eligible for listing on the National Register for Historic Places. However, these sites .
were not re-evaluated during this site-wide archeological survey. . The State Office of
Archeology and Historic Preservation has determined that any action in the vicinity of om will
not impact cultural resources (Burney, 1989).
2.3 . CONTAMINANTS - DESCRIPTION AND SOURCES
The following discussion of contaminant types and distribution are . based on data and
interpretations presented in the Phase n RIIFS Work Plan (EG&6, 199Oc), Draft Remedial
Investigation Report (Rockwell, 1987a), and Draft R.einedial Investigation Plan (Rockwell,
1988c). Soil, ground water, and surface water were sampled and analyzed for radio nuclides and
for the Hazardous Substance List (HSL) organics and inorganics. In general, soils in the vicinity
of the msSs were found ~ contain low concentrations of VOCs, and occasionally elevated
concentrations of plutonium (PO) and americium (Am). Most soil samples contained phthalates,
but this may be a result of field or laboratory contamination of the samples. Carbon
tetrachloride (CC4), tetrachloroethene (PCE), and trichloroethene (TeE) are the primary VOCs
found in the upper hydro stratigraphic unit (this includes the alluvium and hydraulically
interconnected bedrock .sandstone [uppermost sandstone]) ground-water flow system at om.
Trace elements occurring above natural background levels in ground water include: strontium,
barium, copper, and nickel, and to a lesser extent chromium, manganese, selenium, lead, zinc,
and molybdenum. Also, major cations and anions and total dissolved solids are somewhat
elevated above background throughout and dowogradieot of the 903 Pad, Mound, and East
Trenches Areas. Uranium-238 is the predominant radionuclide occurring above background in
the upper hydrostratigraphic' unit ground-water flow system. An evaporative concentration
conceptual model has been advanced that may explain concentrations of high total dissolved
solids, metals, and uranium in ground water at om.
Organic contamination is observed in seeps downgradient of the 903 Pad and in the upper
reaches of South Walnut Creek at the Mound Area. Also, there are somewhat elevated
concentrations of total dissolved solids, major ions, strontium, zinc, and uranium at many of the .
SUBSURPACB JNTI!RIN REMEDIAL AcrION PlAN
ROCICY FLATS PLANT, OOLDEN, COLORAJ)()
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surface water stations. Seeps downgradient of the 903 Pad have also been found to Contain Po .
and Am. This is postulated to be due to the presence of contaminated suspended solids (Le.,
soil) in the seep water, and is based on the chemistIy of Po and Am in natural water systems
and studies performed by EG&G. The literature indicates that Po is practically insoluble under
oxidizing and near-neutral conditions (Cleveland, 1979) and Am strongly complexes with
colloidal material and should exist in the particulate fraction (Orlandini et aI., 1990). That Po
and Am in surface seep water is particulate in nature is also supported by pre1iminary studies
performed by EG&G (EG&G, 1991). The studies involved successive filtration of om seep
water with filter media possessing various pore sizes (Le., 0.45 micrometers ~m), 0.2 #£m, and
0.1 I'm). The filtrates were then analyzed for Po and Am. The analyses indicate that Po and
Am in surface water at om are associated with the particulate phase. A more, comprehensive
. successive filtration study to examine the distribution of Po and Am (i.e., dissolved versus
particulate) in om surface water is being planned by EG&G at this time.
Po and Am occur above background in surface soils. Other radionuclides and trace metals occur
at low concentrations and are infrequently above background, but may also be soil contaminants
at the 903 Pad, Mound, and East Trenches Areas. Data suggest Po and Am were released to
soils in the area via wind dispersion during initial remedial efforts at the 903 Drom Storage Site.
These radionuclides occur in surface soils throughout the 903 Pad, Mound, and East Trenches
Areas and other downwind areas to the southeast.
The following discussion provides additional details of contaminarion in om groupd water,
soils, sediments, and surface water. Comprehensive ground-water monitoring at the RFP has
occurred since 1986. Wells have been installed throughout the property and are sampled
quarterly. Appendix B-1 presents a summary of VOCs, radionuclides, metals, and inorganic
contaminant concentrations above detection limits in the unconfined ground-water system at
om. The extent of soil contamination at the 903 Pad, Mound, and East Trenches Areas was
determined from soil samples collected in 1987 during the Phase I RI (Appendix A). Samples
were collected from boreholes drilled in and adjacent to known mss locations (Figure 2-9).
Two-foot intervals were composited for VOCs, and 2- to lo-foot intervals were composited for
all other analytes. Boreholes were not drilled into sites still containing wastes (the Trenches and
903 Pad) due to potential health hazards to field workers and potential for release of waste
SUBSURFACE INI'BRIM REMEDIAL AcrION PLAN
ROCKY FLATS PIANI', GOLDEN, COLORADO
c:g&C\u-inp\fiIIIM\lcc-2.1cp
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Figure 2-9 Soil Sampling Location Map
SUBSURFACE INTBRIM JU!MBI)IAL ACJ'ION PlAN
ROCKY PLATS PlANT, GOLDEN, COLORADO
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constituents to the environment. Data for sUlface water and sediments has not been tabulated
in this IMIIRAP because these media are not directly relevant to the IMIIRA. Nevertheless, a
discussion of existing CODtamination in these media is provided in order. to present a
comprehensive description of the nature and extent of contamination at om.
2.3.1 Back2round Characterization
In order to facilitate the interpretation of chemical results in non-background areas, a background
characterization progmn has been implemented to define the spatial and temporal variability of
naturally occurring constituents. Field work was conducted in 1989, and a draft Background
Geochemical Characterization Report was prepared and submitted to the regulatory agencies on
15 December 1989 (Rockwell International, 1989a). The'draft report was updated in December
1990 to include additional rounds of ground-water and surface water samples. The document
summarizes the background data for ground water, surface water, sediments, and geologic
materials, and identifies preliminary statistical boundaries (tolerance intervals) of background
variability. Spatial variations in the chemistry of geologic materials and water were addressed
by placing sample locations throughout background areas at the Plant. Evaluation of temporal
variations in water chemistry is ongoing.
2.3.2 Soil Contamination
The following discussions include a summary of VOCs, radionuclides, and metals concentrations
that are above detection limits in soils at om. This discussion is considered pre1imin:l1j'
because soil samples have not been collected in the actual waste burial areas (IHSS). This type
of sampling will be conducted during the Phase n RI.
2.3.2.1 Volatile Organic Contamin~tion
VOCs (including: PCB, TCE, toluene, 2-butanone, CCl., acetone, and methylene chloride)
were reported in samples from the 903 Pad and East Trenches Areas. Occurrences of total
xylenes, ethylbenzene, and toluene were also reported for the 903 Pad Area, whereas 1-2- '
dichloroethane (1,2-DCA), 1,1,1-TeA, and 1,1,2-Trichloroethane (1,1,2-TCA) were reported
SUBSURPACBJNTERIM REMEDIAL Acr10N ~
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in an East Trenches borehole. The Mound Area soils, like other portions of om, contained
acetone (hundreds of micrograms per kilogram) and methylene chloride (typically tens of
micrograms per kilogram) at concentrations too low to unambiguously demonstrate
contamination with these compounds. Other organic constituents in the Mound Area (pcE,
CHCI3, 1,2-DCA) were less numerous and at lower levels than at other areas within om.
2.3.2.2 Inorganic COD~minatiOD
RadioDuclide CODtaminatioD
Based on the Phase I RI borehole data, Pu and Am are the principal radioDuclide contaminants .
exhibiting elevated concentrations in soils. Highest concentrations occUIred in samples that
included the surface soils in the area, and were typically on the order of 100 picoCuries per
gram (pCilg). Because many of the surface soil samples were mixed into Jarge composites, the
Phase I RI data do not eliminate the presence of radionuclides other than Pu and Am. Cesium-
137, tritium, and uranium were detected, albeit at near-background concentrations and in fewer
than 10 samples. Surface contamination of soils with Pu and Am was further demonstrated by
recent aerial and in situ radiological surveys (OO&G, 199Oa; OO&G, 1991b) (Figures 2-10
and 2-11). The radioactivity detected in that survey was associated with known radioa~:ie
material storage and handling areas (Le., the 903 Pad), and was attributed to Pu, Am, and a
uranium decay product. Soil sampling indicated elevated concentrations of americium in soils
east of the 903 Pad Lip Site as high as 97 pCilg, and by inference from their expected activity,
ratio, plutonium as high as 500 pCilg.. Subsequent analysis of samples from the area with high
americium concentrations indicated plutonium concentrations as high as 457 pCilg. The
cesium-137 activity at RFP is at a level consistent with global fallout.
Metals CoDt.aminatiOD
Several metals occurred above background in soil samples (aluminum, arsenic, barium,
cadmium, calcium, iron, If ~, manganese, lead, antimony, vanadium, and zinc), although
most exceeded backgro". JY less than a factor of two and/or in only one or two samples.
Appendix A presents maximum metal concentrations in soils.
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Figure 2-10 Surface and Aerial Americium-241 Concentration Data for the RFP
SUBSURPACE IN'i'ERIM REMBDIAL ACI'ION PLAN
ItOCKY FLATS PlANT. GOLDEN, COLOltADO
CCa,\u-inp\fiaal4\1ec-2.1q1
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Figure 2-11
Surface and Aerial Americium-241 Concentration Data for the RFP
SUBSUItJIACE INI1!RIM REMBDIAL Acr10N PLAN
ROCKY PLATS PLANI'. GOLDEN, COLORADO
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2.3.3 Ground-Water Contamination
2.3.3.1 Volatile Organic Contamination
The primary VOCs in ground water (CC14, PCE, and TCE) are portrayed by isopleths for
alluvial ground water in Figures 2-12 through 2-14 and bedrock ground water in Figures 2-15
through 2-17. This data provides a representative n snapshot" of ground-water contamination at
am, i.e., previous and subsequent water quality data show similar patterns of ground-water
VOC contamination. The ground-water data in Appendix B-2 confirm the relative dominance
of CCl., PCE, and TCE in alluvial and shallow bedrock ground water at am compared to other
VOCs, and documents occurrences of 1,1-dichloroetbane (1, I-DCA), 1,1-dichloroethene (1,1-
. DCE), 1,2-dichloroethene (1,2-DCE), and vinyl chloride (all are possible degradation products
of the principal contaminants), and 1,1,I-trichloroethane (1,1,I-TCA), total-l,2-DCE, 2-
hexanone, chloroform (CHCI3), methylene chloride, acetone, and carbon disulfide. The latter
four analytes were reported at levels below detection limit and therefore represent only estimated
values.
A review of Figures 2-12 through 2-17 suggest that the 903 Pad is the main source of CC~, with
possible contributions from the northern East Trenches. Also, the Mound Area appears to be
the main source of PCE, and TCE occurs throughout am implying multiple sources.
2.3.3.2 Inorganic ContAmination
Radionuclides
Appendix B-2 shows that dissolved concentrations of the uranium isotopes (U-234, U-235, and
U-238) have been above background at am. The maximum concentration for uranium 238 was
28 :f: 2 picoCuries per liter (pCill) in well 12-87 hi the 903 Pad Area. Numerous occurrences
of uranium at lower concentrations and in wells completed in diverse lithologies demonstrate that
the distribution of uranium is not thoroughly delineated at am. Review of unvalidated Po data
(total and dissolved) for ground-water wells east-southeast of the 903 Pad indicates Po in ground
water is generally at non-detectable levels (error term is greater than the reported value). The
SUBSURFACE INJ'EIUM REMEDIAL AcrION ~
ROCKY PLATS PLANT, COLDEN, COLORADO
cc.tcl88-inp\tiDal4'-2.1Cp
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Figure 2-12 Carbon Tetrachloride ISopleths for the Unconfined Alluvial Ground-Water
Flow System
SUBSUltPACB INl'ERIM REMEDIAL AcrION PlAN
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. Figure 2-13 Tetrachlorene Isopleths for the Unconfined Alluvial Ground-Water Flow
System. .
SUBSURFACE INTI!IIM aBMBDlAL ACl'JON PlAN
ROCXY PLATS PlANT, OOLDEN, COLORADO
qr.tc\u-inp\fiaal4\8ce-2.8I:p
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Figure 2-14 Trichloroethene Isopletbs for the Unconfined Alluvial Ground-water Flow
System.
SUBSURJIACB IN'I'BJtD,{ RBMBDIAL AcnON PLAN
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Figure 2-15
Carbon Tetrachloride Isopleths for the Unconfined Bedrock Ground-Water
Flow System
SUBSUUAC1IIN1'B1UM ItEMl!J)IAL AcnON PlAN
ROCKY PLATS PLVn', GOLDEN, COLORADO
CCa,\a-inlpIfillal418a:-2.acp
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ScpaIbcr 1992
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Figure 2-16 Tetrachlorene Isopleths for the Unconfined Bedrock Ground-Water Flow
System
SUBSURFACE IN1'B1UM REMEDIAL ACTION PLAN
ROCKY PLATS PtANT, OOLDEN. COLORADO
ccAc\u-inp\fia8M'-2.1Cp
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Figure 2-17 Trichloroethene Isopleths for the Unconfined Bedrock Ground-Water Flow'
Syste~ .
SUBSURPACB JNTEItJM RJ!MBI)IAL ACTION PLAN
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highest concentrations of Pu reported were in well 2-71 (total plutonium = 1.9 :t I pCiI t on
3/11/87 and 32 :t.3 pCill in 1988). However, there are three other sampling events showing
total Pu was non-detectab1e, and the reported value for 1988 is suspect because an exact date for
the sample cannot be determined from the documentation. Furthermore, there are seven other
analyses for dissolved plutonium for this well where the radionuclide was non-detectable.
Because Pu and Am are infrequently detected in ground water at this well and elsewhere, it is
uncertain whether these radionuclides are actual ground-water conmminants.
Metals
Metals that exceeded background in one or more wells in the second quarter of 1989 include:
aluminum, antiinony, arsenic, barium, cadmium, chrOmium, copper, iron, lead, lithium,
manganese, mercury, molybdenum, nickel, potassium, selenium, silver, strontium, vanadium,
and zinc. A summary of multiple sampling events (Appendix B-1) shows that only a subset of
these analytes repeatedly exceed background andlor exceed background by a wide margin. The
sporadic exceedances of background, and the absence of apparent gtadients in metal
concentrations with respect to msSs, hinders drawing definite conclusions as to whether these
constituents are derived from msss.
Maior Ions
Major ions and total dissolved solids ('IDS) are somewhat elevated above background throughout
and downgradient of the 903 Pad, Mound and East Trenches Areas (Appendix B-2). Total
dissolved solids typically ranged between 400 and 1,000 milligrams per liter (mgl t); chloride
was generally 30 to 100 mglt, nitrate was 2 to 10 mg/t, and most sulfate concentrations were
between 10 and 100 mglt in the second quarter of 1989. In general, major cations were
acoordingly elevated: The highest concentrations of major ions are in wen 29-87 southeast of
the 903 Pad, although IDS in grouQd water at the northernmost wells (34-87 and 35-87) was
also quite high in (-1,000 mg/t).
SUBSURFACE INTERIM REMEDIAL ACI'lON PLAN
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cga:,lu-inplfiDal4\oec-2.1cp
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2.3.4 Surface Water ContaminSition
Surface water and surface seep stations in the vicinity of the 903 Pad, Mound, and East
Trenches Areas were sampled during field activities from 1986 through 1991. The following
discussion is based on all available data because many seeps or stream stations were dry during
some samplings. Surface water monitoring locations are shown in Figure 2-18. The surface
water seeps are immediately downslope and SQutheast of the 903 Pad Area, and downslope and
north of the Mound Area and East Trenches Areas.
Because surface water at seeps and in streams represents ground-water discharge (intermittent
discharge with respect to streams), the surface water compositions are similar to those of local
. .
ground water. The data for both media show that PCB, TCE, CCJ.., and their degradation
products are the principal VOCs and show very similar major ion contents as well. However,
there is enough variability within stations so that it is not possible to demonstrate surface/ground-
water connections on a well-by-well, seep-by-seep basis.
Seeps in the vicinity of the 903 Pad Lip Site have had significant concentmtions of Po and/or
Am. However, the samples contained suspended solids, and surface soils in the vicinity of the
seeps are contamin~tPLI with radionuclides. Furthermore, total radiochemistry data do indicate
notably higher Po and Am concentmtions than in filtered samples (0.45 ",m nominal pore size),
demonstrating that most of the radionuclides are in a particulate form. Therefore, the local soils
represent the most direct potential source for seep contamination. There is no immediate threat
to public health and the environment posed by surface water contamination because the affected
surface water is contained within the Plant boundary by existing detection ponds, and is treated
and monitored prior to discharge for removal of volatile organic contaminantC! and suspended
particulates to which radionuclides, if present, are likely to adsorb.
. 2.3.5 AirContJlmination
The 903 Pad Area is recognized as the principal source of airborne Po contamination at the RFP.
An extensive' air monitoring network known as the Radioactive Ambient Air Monitoring Program
(RAAMP) is maintained at the Plant in onte.r to monitor particulate emissions from the 903 Pad
SUBSURFACB INTBJUM REMEDIAL AcrION PlAN
ROCKY PlATS PlANT, GOLDEN, COLOJtADO
ca&c'-irap\fiD8l4\SCC-2.1Cp
PINAL
~1992
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Figure 2-18 Surface Water and Sediment Monitoring Stations
SUBSURPACB JNTEJtIM REMEDIAL ArnON PLAN
JlOCXY PLATS PlANT, QOLDEN, COLORADO
CCAc\u-inplfiDaJ4'-2.1Cp
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Scp\aDber 1992
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Area and other Plant facilities. Historically, the particuJate samplers located immediately.east,
southeast, and northeast of the 903 Pad, Mound, and Bast Trenches Areas have shown the
highest Po concentrations. This finding is corroborated by the results of soil surveys that
indicate elevated Po concentrations to the east, particularly southeast of the area. However,
RAAMP has found ambient air samples for Po to be well within the DOE guidelines of 20.0 x
1~ pCi/t established for the protection of human health (Rockwell International, 1987b).
2.3.6 Summarv of Contamination
The Phase I RI investigations of envirOnmental media lead to the general conclusions that
. volatile organic and inorganic CODtamination in soils, ground water, and surface water and
radionuclide contamination in soils exist around several om IHSS. The RI also determined that
the distribution and magnitude of the contamination can be better delineated via sampling and
analysis planned for the Phase II investigation.
TCE, PCE, and CC4 are the principal organic contaminants in soils, surface, and ground
waters, with lesser amounts of their degradation products and other compounds at numerous
sampling sites throughout om. Apparent Po and Am in surface water samples are other
apparent indicators of RFP-derived contamination.
Several metals and other inorganic constituents (including uranium) are also above background
in the environmental media, but the data do not permit unambiguous conclusions with regard to
contamination. The uncertainty results in part from the absence of clear concentration gradients
and from the limited knowledge of the inorganic composition of waste sourceS in om. Naturiil
processes (e.g., evaporative concentration) may govern the source and distribution of such
inorganic constituents. This will be further investigated in the context of long-term remediation
at om.
2.4
ANALYTICAL DATA
Appendix A of. Volume II presents a compilation of volatile organic, inorganic, and
radiochemistry data for all ground-water monitoring stations at om that are available at this
SUBSURFACE INTERIM REMEDIAL AcrJON PLAN
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time. Some of the data have been validated; they are identified in the appendices by a qualifier'
adjacent to each datum. The qualifiers flV" (valid), fI A fI (acceptable with qualifications), and
fiR" (rejected) are assigned in accordance with the ER Program Quality Assurance/Quality
Control (QAlQC) Plan (Rockwell International, 1989c). Rejected data either did not conform
to the QAlQC procedures, or insufficient documentation exits to demonstrate conformance with
these procedures. These data, at best,can only be considered qualitative measures of the analyte
concentrations. The schedule for the IMIIRA does not permit waiting for all data to be
validated. However, the validated data and their similarity to invalidated data are considered
sufficient for this IMIIRAP/BA.
2.5
SITE CONDmONS THAT .JUSTIFY AN IMIIRA
The IMIIRA will provide information for selection, design, and implementation of the final
remedial action that addresses subsurface VOC contaminadon.
As discussed in Section 1, there is no immediate threat to public health and the environment
posed by subsurface VOC contamination at OU2. Cleanup of subsurface VOC contamination
at oui will, therefore, be' addressed in designing and implementing final remedial actions.
However, uncertainties with respect to the om subsurface geology and its effect on site-specific
remedial technology performance presents many challenges for selection and design of fmal
actions. Thus, theIMIIRA is an investigative tool to resolve such uncertainties and streamline
the RIlFS/remedial action (RA) process which is, the primary ju~cation for the, proposed
Subsurface IMIIRA at OU2.
StJBStntFACB INTEltIM RI!ldEDIAL ACTION,PlAN
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SECI'ION 3
IDENTIFICATION OF SUBSURFACE 1M/IRA OBJECl'lVES
3.1
OB.JECI1VES OF INTERIM MEASURES/INTERIM REMEDIAL AcrION
The primary objective of the Subsurface 1M/IRA is to provide information that will aid in the
selection and design of final remedial actions at OU2 that will address removal of suspected
residual free-phase VOC contamination. In general, the information to be collected includes
subsurface characterization and site-specific technology performance data, which can be used
in the FS remedial alternatives evaluation and final remedial system design. The 1M/IRA will
be comprehensive in that subsurface geological data will be collected for a minimum of three
different OU2 locations. Based on the meetings between DOE, EP A, and CDH during the
. Fall of 1991 (Section 1), DOE is proposing this Subsurface IM/lRAP /EA that specifies
treatability testing at the 903 Pad, Mound, and East Trenches Areas for the implementation
and evaluation of VOC source removal technologies.
3.2
COMPLIANCE WITH ARARS AND PROTEcrION OF HUMAN HEALTH AND
THE ENVIRONMENT
The NCP [40 CFR 300.430 (e)] requires that, in development of remediation goals, the
following be considered:
.
ARARs.
.
For systemic contaminants, concentration levels that will not cause adverse effects
to the human population and sensitive subgroups over a lifetime of exposure.
.
For carcinogens, exposure levels represent an upper bound lifetime cancer risk
between 1
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.
Attainment of CW A ambient water quality criteria (A WQC), where relevant and
appropriate.
The lAG, in paragraph 150, states "Interim Remedial Actions/Interim Measures shall, to the
greatest extent practicable, attain ARARs." Also for interim actions, the NCP [40 CFR
300.430(f)] specifically notes that an ARAR can be waived if the action is to become part of
the final remedy that will attain ARARs.
This section identifies and analyzes ARARs relevant to the proposed Operable .Unit No.2
Subsurface 1M/IRA. Because a remedial action would be considered an on-site 1M/IRA to
be administered under CERCLA, only substantive and not administrative requirements of
regulations (such as RCRA) apply. Permits, for example, are not required (per paragraph 121
of the lAG).
3.2.1 Aoplicable or Relevant and Aoorooriate Requirements
"Applicable requirements," as defined in 40 CFR 300.5, mean "those cleanup standards,
standards of control, and other substantive requirements, criteria, or limitations promulgated
under federal environmental or state environmental or facility siting laws that specifically
address a hazardous substance, pollutant, contaminant, remedial action, location, or other
circumstance found at a CERClA site. Only tliose state standards that are identified by a
~tate in a timely manner and that are more stringent than federal requirements may be
applicable." "Relevant and appropriate requirements," also defined in 40 CFR 300.5, mean
"those cleanup standards, standards of control, and other substantive requirements, criteria,
or limitations promulgated under federal environmental or state environmental or facility siting
laws, that, while not 'applicable' to a hazardous substance, pollutant, contaminant, remedial
action, location, or other circumstance at a CERClA site, address problems or situations
sufficiently similar to those encountered at the CERClA site that their use is well suited to
the particular site. Only those state standards that are identified in a timely manner and are
more stringent than federal requirements may be relevant and appropriate." According to
CERCIA U21(c 2), in ordf to be considered an ARAR, a state requirement must have
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been "promulgated." As defined in 40 CFR 300.400(g)( 4) of the NCP, the term "promulgated"
means that the requirement is of general applicability and is legally enforceable.
3.2.2 Items to be Considered
In addition to ARARs, advisories, criteria, or guidance may be identified as to be considered
(TBC) for a particular release. As defined in 40 CFR 300.400(g)(3), the TBC category consists
of advisories, criteria, or guidance developed by EP ~ other federal agencies, or states that
may be useful in developing remedies. Unlike ARARs, use of TBCs is discretionary.
3.2.3 ARAR Cateeories
In general, there are three categories of ARARs. These categories are:
.
Ambient or chemical-specific requirements.
Location-specific requirements.
Performance, design, or other action-specific requirements.
.
.
Each category is discussed in more detail below.
3.3
AMBIENT OR CHEMICAL-SPECIFIC REOUIREMENTS
Ambient or chemical-specific requirements set health- or risk-based concentration limits in
various environmental media for specific hazardous substances. or pollutants. These
reqUirements set protective clean-up levels for the chemicals of concern in the designated
media, or may act as action-related requirements in indicating a safe level of air emission or
wastewater discharge. The chemical-specific ARARs identified herein are used in defining the
remediation goals for discharge of treated ground water to surface water.
ARARs are derived primarily from federal and state health and environmental statutes and
regulations. Where background concentrations for constituents are above the ARAR for that
constituent, a waiver from the ARAR may be appropriate (e.g., technical impracticability).
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A summary of ARARs for the contaminants found to exceed background in OU2 ground
water are presented in Appendix C, Table C.l and includes ARARs for volatile organiCs,
. metals, conventional pollutants, and radionuclides. TBCs are also identified in Table C-l
where ARARs do not exist, and are used as goals for ground-water treatment, where necessary
t6 be protective.
The two sets of ARARs identified in Table C-l are those previously established for the OUI
ground-water treatment facility and for the OU2 South Walnut Creek surface water treatment
facility. These ARARs were established by the regulatory approval of the respective IRAPs
that define the IM/1RAs for OUI and OU2. Both of these treatment facilities are candidates
for the treatment of ground water extracted during the Subsurface 1M/IRA A third candidate
facility is the Building 231/374 treatment systems. The Building 231/374 facility is a zero
discharge treatment system, therefore, water quality chemical-specific ARARs are not
applicable.
There are a number of potential OU2 ground-water contaminants for which ARARs were not
identified in the respective au 1 and OU2 lRAPs, i.e., these contaminants were not expected
to be present in the influent based on the quality of the water the systems were designed to
treat. These contaminants are identified in Table C-l. For this 1M/IRA, ARARs or TBCs
(in the absence of an ARAR) have been identified for these contaminants by applying the
ARAR rationale in the respective lRAPs, and selecting the rationale (and ARAR) that was
most stringent This technique is used for the Subsurface 1M/IRA to provide conservative
effluent standards for all potential OU2 ground water contaminants. It is not, however,
considered a basis for establishing ARARs for future remedial efforts at the RFP. DOE is
preparing a consolidated approach to establishing ARARs for future remedial activities that
it plans to offer to EP A and CDH in the near future. This consolidated approach will provide
the premise for discussions with EP A and CDH on the ARAR selection methodology to be
used for remediation at all operable units at the RFP.
Of the elements/compounds detected in ground water at OU2, ARARs or TBCs cannot be
identified from environmental regulations and guidance for: 4-methyl-2-pentanone,
2-hexanone, calcium, magnesium, potassium, sodium, strontium, bicarbonate and cesium137.
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(Note: As discussed in Section 2.3.3., cesium137 is not an RFP contaminant) For these
constituents, background concentrations (EG&G, 1990b) are used as goals for the 1M/IRA
For organic contaminants, background is considered the Contract Laboratory Program (CLP) .
Contract Required Quantitation Limits (CRQL).
Regardless of ARARs, the system ultimately used for treatment of ground water in this
1M/IRA will be selected based on the ability of the treatment system to. remove the
contaminants actually measured in the extracted water, e.g., the OUI facility will not be used
if the ground water contains above background plutonium or americium concentrations
because this facility was not designed for their removal. (Note: The unit processes in the
OUI facility potentially can remove plutonium/americium, but treatment performance for
removal of these radionuclides would have to be demonstrated before OU2 ground water is
transferred there for treatment.) Likewise, the Building 231 facility utilizes activated carbon
for organic contaminant removal, and the presence of methylene chloride, vinyl chloride,
chloroform or ketones in extracted ground water would render this facility inappropriate for
use. The South Walnut Creek Basin Treatment System has been designed to treat water
containing all of the potential OU2 contaminants. Based on current data, this treatment
system is the preferred system for the Subsurface 1M/IRA. Treatment performance
considerations for selection of the Subsurface 1M/IRA ground-water treatment system is
discussed further in Section 4.
3.4
LOCATION-SPECIFIC REOUIREMENTS.
Location-specific ARARs are limits placed on the concentration of hazardous substances or .
the conduct of activities solely because they occur in certain locations. These may restrict or
preclude certain remedial actions or may apply only to certain portions of a site. Examples
of lpcation-specific ARARs that pertain to the 1M/IRA are federal and state siting laws for
hazardous waste facilities (40 CFR 264.18, fault zone, and floodplain restrictions), and federal
regulations requiring that actions minimize or avoid adverse effects to wetlands (40 CFR
Part 6 Appendix A and 40 CFR Parts 230-231).
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More specifically, in addition to the requirements described above, pertinent location-specific
ARARs include: Colorado requirements for siting of hazardous waste facilities and
wastewater treatment facilities (Colorado Revised Statue 25-15-101, 203, 208, 302 and .
25-8-292, 702, respectively); National Historic Preservation Act requirements for preservation
of significant articles and historic properties (36 CFR Parts 65 and 800, respectively); federal
critical habitat protection requirements (50 CFR Parts 200, 402 and 33 CFR Parts 320-330);
and federal requirements for the protection of fish and wildlife resources (40 CFR 6.302).
A summary of location-specific ARARs, which this 1M/IRA will attain to the greatest extent
practicable, is presented in Table C-4.
3.5
PERFORMANCE. DESIGN. OR OTHER ACTION-SPECIFIC REOUIREMENTS
Performance, design, or other action-specific requirements set controls or restrictions on
particular kinds of activities related to management of hazardous substances or pollutants.
These requirements are not triggered by the specific chemicals present at a site, but rather by
the particular 1M/IRA actions that are part of this plan. Action-specific ARARs are
technology-based performance standards, such as the Best Available Technology (BAT)
standard of the Federal Water Pollution Control Act. Other examples include RCRA
treatment, storage, and disposal standards, and CW A pretreatment standards for discharges
to publicly owned treatment works (POTW).
RCRA land disposal restrictions (LDR) for certain contaminants (40 CFR Part 268.40) are
also action-specific ARARs for the disposal of secondary wastes generated during water
treatment. Any wastes, hazardous or not, are subject to CERClA section 121(d)(3), also
known as the "off-site policy." The "off-site policy" requires that CERClA wastes be shipped
off site only to facilities in compliance with applicable federal and state laws. Action-specific
ARARs that will be attained by the 1M/IRA to the greatest extent practicable are included
in Table C-3. Table C-2 presents RCRA LDRs that are potentially ARAR for placement or
land disposal involving non-effluent wastes (e.g., treatment sludges, excav~'~d soils, used
tr;:atment materials) if they may be determined to contain hazardous Hastes. LDR
requirements may be relevant and appropriate for wastes that are not hazardous wastes, as.
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defined in 40 CFR Part 26 i, but do contain hazardous substances. Any wastes generated ~y
the 1M/IRA will be evaluated to determine jf they are identifiable as hazardous wastes. At
present, no determination has been made whether the anticipated contaminants of wastes from
the 1M/IRA are listed hazardous wastes. However, 1M/IRA wastes, such as spent carbon may
be found to be characteristically hazardous (40 CFR part 261 Subpart C).
Action-specific ARARs also exist for air emissions from this 1M/IRA The Colorado Air
Quality Control Commission (AQCC) has established emission control regulations for the
protection of state air quality. Relative to this 1M/IRA, AQCC regulations provide pertinent
requirements that must be considered. Action-specific ARARs, which the 1M/IRA will attain
to the greatest extent practicable, are included in Table C-3.
AQCC Regulation 7 (5 CCR 1001-7) provides requirements for sources of VOCs that are
associated with the formation of ozone. Regulated sources of VOCs must implement
Reasonably Achievable Control Technology (RAer) and describe any control measures in an
emission permit application to the Air Quality Control Division (AQCD).. According to
AQCC Regulation 3, Section m.D, the threshold for the permit requirement is emission of
1 ton or more of VOCS per year. As defined in Section G of the AQCC Common Provisions
Regulations, RACT means a technology that will achieve the maximum degree of emission
control that a particular source is capable of meeting, and which is reasonably available
considering technological and economic feasibility. The 1M/IRA will not emit VOCS in excess
of 1 ton/year because a vapor treatment system will be used to remove in excess of 99 percent
of the VOCs. However, the treatment system would constitute a RACT.
AQCC Regulation 8 (5 CCR 1001-8) includes requirements for the control of hazardous air
pollutants. Of the potential contaminants in this 1M/IRA, beryllium, benzene, mercury, lead,
and vinyl chloride are considered hazardous air pollutants according to this regulation. With
. the exception of lead, the requirements of Regulation 8 are neither applicable nor relevant
and appropriate to this 1M/IRA In general, the controls of Regulation 8 apply to emission
sources that use or manufacture material containing the hazardous air pollutant. Since this
1M/IRA will neither use nor manufacture any of the hazardous air pollutants, the emission
limit provisions of Regulation 8 are not ARAR, however, they do provide useful guidance to
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be considered. With respect to lead, the emission limit of 15 micrograms per cubic meter
(p.g/m3) applies to any stationary source. Therefore, the standard may be applicable to the
IMjIRA, and accordingly, has been applied as ARAR.
Under EP A regulations at 40 CFR Part 61 Subpart H, hazardous air pollutant restrictions also
exist for radionuclide emissions at DOE facilities. These regulations require monitoring to
ensure that- any radionuclides emitted do not result in any member of the public receiving an
effective dose equivalent or more than 10 milliradiation equivalent man per year (mrem/yr).
Because this standard applies to RFP as a whole, plant emissions are regularly assessed. The
plant emissions have been found to fall orders of magnitude below the standard. Emissions
from the IM/IRA will be monitored and the results incorporated with the plant data.
A table summarizing restrictions on 1M/IRA air emissions is presented in Table C-5.
DOE requirements for worker protection in hazardous waste operations and emergency
response (DOE Order 5480) are applicable to workers involved in hazardous substance-related
activities. Even though these requirements are not environmental in nature, and therefore,
are not considered ARARs, they must be satisfied.
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SECTION 4
PROPOSED ACTIONS
This IM!IRA involves application of in situ vacuum-enhanced vapor extraction at three different
subsurface environments at am for removal of suspected, residual free-phase VOCs from the
vadose and saturated zones. The three subsurface sites selected for implementation of the
IMIIRA differ in their expected geology and nature of contamination. Each of the three selected
sites are located within one of the three primary am areas: 903 Pad, Mound, and East
Trenches. As discussed m this section, each of the sites offer unique cballenges for in situ
remediation of the subsurface.
Implementation of the proposed in situ vacuum-enhanced vapor extraction actions may be
complicated by uncertainties resulting from incomplete site characterization of am. A phased
implementation of the proposed actions is therefore proposed to ensure project success. The
planned phases of implementation include:
.
Location of test sites.
Pilot testing.
Post-pilot operation (if deemed beneficial).
.
.
The first phase is the location of suitable test sites at the 903 Pad, Mound, and East Trenches
Areas. Data from the Phase n RI will be used to pinpoint locations for the vapor extraction and
. injection wells. In the event that these data do not provide enough information to select well
locations, a soil vapor survey will be conducted.
The second phase involves in situ pilot testing of the proposed vapor extraction systems at each
of the test sites. Information collected during the pilot studies will aid in the selection, design,
and implementation of final subsurface VOC removal actions at am. Information from the
pilot study phase will also be used to assess the benefit of pursuing the final phase of the
IM!IRA, post-pilot study operation of the systems with system modifications as appropriate.
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The final phase of IMIIRA implementation is post-pilot operation (if deemed benefidal) of the .
" .
vapor extraction systems at the three om test sites. EP A OSWER Observational/Streamlined
Approach methodology has been used to formulate the proposed actions to minimi7.e difficulties
in the execution of this IMIIRA. The Observation/Streamlined Approach involves development
of a remedial action based on probable site conditions that are identified using existing
information, and that are modified as necessary as additional information is gained" during
implementation.
Prior to presentation of the proposed actions, it is useful to consider the rationale behind
selection of in situ vacuum-enhanced vapor extraction for this IMIIRA. This background
information is presented in Section 4.1. Se".~on 4.2 describes the process that is used to
critically evaluate the effectiveness, implemen ity, and environmental impact of the proposed
"actions. Sections 4.3 through 4.5 present and evaluate each of the proposed actions at the 903
Pad, Mound, and East Trenches Areas, respectively. Section 4.6 presents a detailed description
of existing or planned RFP water treatment facilities that could potentially be used to treat
contaminated ground water generated during Subsurface IMIIRA dewatering operations.
Section 4.7 presents an environmental assessment of the No Action Alternative with respect to
om subsurface VOC contamination, and Section 4.8 provides a summary comparison of
environmental impacts from the proposed remedial actions and the No Action Alternative.
4.1
RATIONALE FOR IMIIRA TECHNOLOGY SELECTION
NCP guidance states that "few alternatives, and in some cases, perbaps only one, should be
developed for interim actions." Based on a review of technologies available for in situ
removal/destruction of VOCs, only one remedial alternative, in situ vacuum-enhanced vapor
extraction, was selected for immediate implementation in the Subsurface IM/IRA. A second
technology, in situ steam stripping, is also being considered for investigation as part of this
IMIIRA because it-has the potential to recover both VOCs and radionuclides, and the technology
is currently being tested by DOE.
The technology" review process involved identification of potentially feasible VOC-
removal/destruction technologies followed by evaluation with respect to the following criteria:
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.
Achieve IMIIRA objective. .
Address the source of the dissolved-phase ground-water plume.
Minimi7,e the risk of spreading contamination.
.
.
As discussed in Section 3, the primary objective of the IMIIRA is to collect information that will
aid in selection and design of final om remedial actions that address subsurface resid1ial free-
phase VOC CODtamination.
Source removal played an important role in the technology review process. The organic
contaminants at om are primarily chlorinated solvents (PCB, TCE, and carbon tetrachloride).
All of the chlorinated solvent contaminants at om have specific gravities greater than 1.0 (Le.,
heavier than water). Liquids with this property are referred to as Dense Non-Aqueous Phase
. Liquids or DNAPLs. These substances have very low solubilities in water, on the order of 100
to 1,100 mglt (parts per million). For this reason, classical remedial actions like ground-water
extraction and aboveground treatment will not remediate the site in a timely manner. Pump and
treat technologies require that the source material first dissolve into the ground water. For
example, removal of a 55-gallon solvent spill in this manner would require pumping
approXimately 45,000,000 gallons of ground water with an average concentration of 2 mgll.
. .
Furthermore, the water bearing formations at om are not expected to yield large volumes of
water due to their low permeabilities. Therefore, technologies that have the potential to directly
. .
remove the source material were considered desirable.
Finally, the review process involved eJeamining technologies with respect to their risk of
. .
spreading VOC and radionuclide CODtamination. This is particularly important at om due to
the potential mobilization of radionuclides that may be present at the test sites, specifically
uranium, plutonium, and americium. Radionuclide mobility in the aquifer is sensitive to
fluctuations in temperature and pH. Candidate remedial technOlogies were eliminated from.
further consideration if they posed any unknown risk of. uncontrolled mobil¥Ation of
radionuclides or VOCs.
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Candidate in situ remedial technologies considered for the Subsurface IMIIRA included:
.
Debalogenation.
Chemical oxidation.
Steam stripping.
.
.
.
Bioremediation.
Vacuum-enhanced vapor extraction.
.
In siru dehalogenation involves introducing an aqueous dehalogenating .solution such as sodium
borohydrite solution or zinc and acetic acid into the affected portion of the aquifer.
Dehalogenating solutions are redu 'ots that liberate nascent (atomic) hydrogen, which replaces
. chlorine atoms on the solvent molecules, significantly reducing their toxicity. However, there
. are process uncertainties with respect to uncontrolled mobilization of radionuclides that may be
present in the subsurface. The debalogenation solutions may, for example, lower the pH of the
ground water or degrade subsurface humic materials, potendally increasing radionuclide
mobility. Bench-scale treatability studies will be performed to resolve this uncertainty prior to
consideration of the technology for field implementation.
In situ chemical oxidation involves introducing an aqueous oxidizing solution such as a
combination of metallic iron and hydrogen peroxide (Le., Fenton's reagent) into the affected
portion of the aquifer. The oxidizing agent (hydroxyl radical in the. case of Fenton's reagent)
reacts with the VOCs to mineralize them to carbon dioxide and water. Preliminary results of
bench-scale testing of chemical oxidation for the 881 Hillside ultra-violet (UV)
peroxide/oxidation treatment system have indicated successful destruction of VOCs containing
carbon-carbon double bonds (i.e., TCE, PCE, etc.). The results have suggested poor destruction
efficiencies for VOCs not containing the reactive carbon-caIbon double bonds (i.e, carbon
tetrachloride, 1,1,1-TCA, etc.). Also, as discussed above for in situ dehalogenation, there are
uncertainties associated with chemical oxidation with respect to .
uncontrolled mobilization of radionuclides. Therefore, treatability studies e,camining chemical
oxidation will be conducted in the laboratory prior to consideration of the technology for field
implementation.
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In situ bioremediation utilizes naturally occurring or cultured microorganisms to degrade VOCs.
Nutrients and co-metabolites are injected into the subsurface to augment and Sustain the microbe
populations. Bioremediation has successfully treated many non-halogenated hydrocaIbons, but
has been less successful with halogenated compounds. Nonetheless, recent progress in
bioremediation research indicates that this technology holds promise for the degradation of
halogenated organic compounds. At this time, however, inclusion of bioremediation
investigations in the Subsurface IMIIRA at om is premature. If future research progress
indicates that bioremediation is a practical alternative for degradation of free-phase chlorinated
solvents, this technology will be tested to examine its applicability for om.
In situ steam stripping includes injection of pressurized steam to displace ground water and
vaporize free-phase VOCs trapped in the aquifer and vadose zone soils. Subsurface temperature
increases associated with the injected steam, "along with a reduction in subsurface pH, may be
effective in solubilizing Iadionuclides adsorbed to the subsurface matrix. Recovery wells are
used to collect dissolved, free-phase and/or vapor-phase VOCs and dissolved radionuclides.
Condensation of steam and VOCs occurs at the steam front, which expands vertically and
laterally over time. The orientation of the steam front is critical to prevent the downward
migration of condensed free-phase VOCs. However, uncertainties associated with maintaining
the steam front at the proper angle and the effectiveness of Iadionuclide desorption and
solubilization require "that in situ steam stripping be first examined on a bench scale prior to field
testing. "Treatability studies eJCamining this technology are currently being conducted by
Lawrence Livermore National Laboratory (lLNL) in Livermore, California. Because in situ
steam stripping has the potential to recover both VOCs and radionuclides, and this technology
is currently being investigated by DOE, it is being considered for further investigation as part
"of this Subsurface IMIIRA. An additional project phase may, therefore, be added to the
Subsurface IMIIRA to conduct an in situ steam stripping pilot test after the results of LLNL
study are assessed.
In situ vacuum-enhanced vapor extraction involves the installation of one or more vapor
extraction wells within or adjacent to an area containing residual free-phase hydrocarbons. The
wells are manifolded into a vacuum pump and the vacuum induced in the subsurface creates a
sweep of air through the formation. The induced air flow volatilizes and removes the residual
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. free-phase solvents. Separate wells may also be used to inject ambient or heated air into the
. formation to increase airflow through the contamin~teO area. In order to address residual
contamination held in the aquifer materialt the water table must be lowered by pumping to
expose the residual DNAPL to the air flow induced in the formation.
In situ vacuum-enhanced vapor extraction coupled with water table depression satisfies the three
criteria listed above and has been selected for the Subsurface IMIIR.A at om. It will provide
data that will be useful in the selection and design of a final action as it is potentially applicable
at all om solvent spill or burial sites. It addresses the soUrce of the dissolved-phase ground-
water plume and reduces the likelihood of additional contamin~nts migrating from the vadose
to the saturated zone. This technology does not involve subsurface injection of liquid reagentst
so there is little probability of spreading the VOC contamin~tion. In addition, mobilization of
radionuclides that may be present is not expected because no change in ground-water pH is
expected.
Actions involving in situ vacuum-enhanced vapor extraction are proposed at three locations
within om: IHSS No. 112t a former drum storage site at the 903 Pad Area; mss No. 113t
a former drum storage site at the Mound Area; and IHSS No. Ill. It a burial trench at the East
Trenches Area. . The locations of these IHSSs are shown on Figure 2-2. Vapor extraction
technology can be universally applied at all proposed test locations given adequate formation
permeability to. air and a known residual DNAPL location. However, application of this
technology will be customized to the site-specific hydrogeologic and contaminant distribution
conditions. Water table depression efforts will be applied only at those sites where a significant
saturated thickness exists (> 3 feet). Additional differences in vapor extraction technology
application at the three test sites will include site-specific extraction' and air injection well
.placement and design. Site-specific considerations are discussed in Sections 4.3 through 4.5.
4.2
EVALUATION OF PROPOSED ACTIONS
This section discusses the elements of an integrated CERCLAINEP A evaluation process that will
be used to critically examine the proposed actions at the 903 Padt Moundt and East Trenches
Areas. This'integrated process is based on both CERCLA and NEP A evaluation criteria as set
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forth in the March 1990 NCP and the draft DOE NEPA Compliance Guidance Manual (DOE,
1988a as revised), respectively.
An integrated CERCLAINEP A evaluation process is used in DOE remedial action planning to
critically evaluate alternative remedies so that a preferred alternative may be selected. In this
case, however, only one action alternative, in situ vacuum-enhanced vapor extraction, has been
proposed for implementation at this time (see Section 4.1). Nonetheless, analysis of the
proposed in situ vapor extraction actions with respect to CERCLA and.NEP A evaluation criteria
provides a more thorough understanding of the actions. CERCLA evaluation criteria considered
in the analysis include effectiveness and implementability. Analysis of relative cost is used in
the CERCLA evaluation process to choose between one or more similarly effective and
implementable remedial alternatives. Cost analysis, therefore, need not be included in the
evaluation process for the Subsurface JM/IRA. NEP A evaluation criteria considered in the
analysis include impacts of the proposed remedial actions to human health and the environment.
In order to integrate the requirements of NEPA into the evaluation process, two elements are
included:
.
CERCLA and NEPA criteria are given equal weighing in the evaluation process.
.
Assessment of the environmental impacts of the No Action Alternative is included
in the evaluation process.
4.2.1 ~ffectiveness
The criteria for effectiveness evaluation of the proposed subsurface IRAs include the use of
alternatives to land disposai, thus promoting treatment or recycling; risk of potential exposure
to residuals remaining on site; continued reliability over the life of the JM/IRA; and compliance
with ARARs criteria, advisories, and guidance. In addition, the proposed actions will be
evaluated with respect to reduction of toxicity, mobility, and volume of wastes per the March
1990 NCP.
Effectiveness evaluation of the proposed subsurface IRAs does not include several of the
CERCLA effectiveness criteria due to the nature of the JM/IRA. These criteria include threat
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reduction and length of time until protection is achieved. These criteria are not applicable to
the Subsurface IMIIRA since subsurface VOC contamination at om does not pose a threat to
public health or the environment nor is the proposed action in its current form expected to
substantially alter the existing dissolved-phase ground-water plume during the duration of the
test. The Subsurface IMIIRA is designed to remove contaminants from small areas at three of
the suspected source areas at om and to evaluate a remedial technology that may ultimately be
applied on a large scale as part of the final action. Therefore, statements regarding mitigation
of identified threats or length of time until protection is achieved are not applicable.
CERCLA effectiveness and NEP A environmental impact criteria both address woIker and
. community protection. In order to avoid repetition in this document, woIker and community
protection issues associated with the proposed actions will be presented only once in the
environmental impact analysis sections.
4.2.2 Implementability
The criteria for implementability evaluation of proposed actions include technical feasibility,
availability, and administrative feasibility. Technical feasibility includes the ability to: construct
the technology; maintain its operation; meet process efficiencies or performance goals;
demonstrate performance; and comply with the Superfund Amendments and Reauthorization Act
(SARA) requirement that ~ should contribute to the efficient petformance of a long-term
remedial action to the extent practicable. Availability includes the availability of necessary
equipment, materials and personnel; availability of adequate off-site treatment, storage, and
disposal capacity, if appropriate; and description of post-remedial site controls that will be
required at the completion of the action. Administrative feasibility includes the likelihood of
public acceptance of the proposed action, including site and local concern; coordination of
activities with other agencies; and ability to obtain any necessary approvals or permits.
4.2.3 Environmental Impacts
The .criteria for environmental evaluation of the IMIIRA actions include DOE NEP A compliance
guidelines for: terrestrial and aquatic impacts, threatened and endangered species, historical and
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archeological sites, wetlands and floodpJains, and cumulative impacts; and air quality, water
quality, short- and long-term land productivity, personnel exposures, commitment of resources,
. .
and transportation impacts.
The procedural guidance for compliance with NEP A and various related environmental statutes
for the proposed action in this Subsurface IMIIRAP/BA is found in the Draft DOE NEP A
Compliance Guide (DOE, i988a as revised). Coordination of NEPA compliance procedures
with review requirements of other environmental statutes that bear on the NEP A process
enhances the probability of complete compliance and achievement of timely implementation of
progrcuns and projects.
The Compliance Guide is intended to assist DOE and conttactors by providing the following
information on the NEPA process: the processes of related environmental statutes that bear on
the NEPA process; the timing relationships between EPA review and review requirements of
other environmental statutes; and the NEP A process compliance and development for programs
and projects. Regulatory guidance procedures for environmental restoration projects as they
relate to air quality, water quality, terrestrial and aquatic impacts, threatened and endangered
species, 'and historic and archaeological sites are discussed in Sections 4.2.3.1 through 4.2.3.5.
. .
Short- and long-term land productivity, personnel exposures, commitment of resources,
transportation impacts, wetland and floodplain impact assessment, and cumulative impacts are
discussed in Sections 4.2.3.6 through 4.2.3.11.
4.2.3.1 Air Quality
Air quality impacts are addressed by estimating changes in ambient air quality due to the No
Action Alternative and the Subsurface IMIIRAs. Changes in air quality could result from
possible emissions of VOCs (Subsurface IMIIRAs) and generation of fugitive dust (Subsurface
. IM/IRAs).. VOC air emissions from the No Action Alternative are not expected to be significant
relative to other VOC air emissions from the RFP that are regulated by CDH since, under the
No Action Alternative, VOCs will primarily remain in the subsurface and continue to leach into
ground water.
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Air quality impacts from VOCs released during vapor extraction system installation activities
(e.g., drilling, well installation, and vapor extraction system component setup) would be minimal
when compared to the normal operational activity at the RFP even though VOC concentrations
in soils in the vicinity of 903 Pad, Mound, and East Trenches are significant. This is because
the limited amount of drilling planned for each of the three IMIIRA sites is expected to minimi7.e
the generation of VOC-containing drill cuttings. Thus, there will be an insignificant release of
VOCs to the air from drill cuttings that amount to less than 2 cubic yards per site. However,
in the event that releases are greater than expected, they will be controlled by adherence to the
procedures set forth in the Project-Specific Health and Safety Plan (PSHSP) and the Plan for
Prevention of Contaminant Dispersion. (See "Personal Exposures" section below.)
'The PSHSP will require employees to wear personal protection equipment (pPE) including
respirators, gloves, and protective clothing during work tasks where conrnminant releases are
likely. This will prevent employee exposure in the event of an unplanned release. Employees
who are unprotected at the time of an unexpected release will be alerted to take iDimediate
evasive/protective action by warning alarms on direct reading analytical equipment.
If routine air monitoring of dust emissions from planned activities reveals higher than expected
dust concentrations, the implementation of dust control techniques described in the PPCD will
be initiated. These techniques may include such measures as soil wetting with water or a water-
surfactant mixture, windscreen deployment, a change in drilling techniques, application of
surfactants to unpaved roads, restrictions on vehicular traffic, temporary stoppage of project
operations due to high winds, etc. The PPCD describes a staged approach to preventive
measures assessment.
The vapor extraction system includes an offgas treatment unit for removal of CQDbIminants from
the vapor stream prior to discharge to the atmosphere. The system includes GAC adsoIption
. units to remove VOCs and in-line high efficiency air particulate (HEPA) filters to capture any
radionuclides that may be released from the subsurface. HEP A filters will be followed by a
radiation sensor that will ,shut the system down before the release of major amounts of
, ,
radionuclides to the GAC units can occur. Although vapor-phase GAC adsoIption is not
intended for removal of particulates, filtration of 20 to 50 microns and 1arger in size is provided
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. . .
by the granular packed bed. Thus, in the unlikely event that the upstream HEPA filters are not
properly functioning, the GAC units would provide some filtration capacity.
Dermal exposure, inha1ation, and inadvertent ingestion of airborne radioactivity and VOCs on
fugitive dusts are analyzed in later sections of this report entitled "Personnel Exposure-Routine
Operation. ,,' Pollution from engine emissions, fugitive dust generation by vehicles and
particulates from tire wear will be analyzed separately in "Transportation Impacts. "
With respect to dewatering activities any subsurface water collected would be 'processed through
.existing RFP treatment systems. If free-phase VOCs are recovered during dewatering, a closed
phase separator system (described in Section 4.3.2) will be added to the vapor extraction system.
Therefore, no change in the levels of VOCs in the ambient air off site is expected. The mixing
of chemicals for water treatment and use of strong acids or bases in cleaning operations may
contribute to odors within the confines of existing water treatment facilities and will be
controlled by adequate ventilation. These odors would not be noticeable from outside the
treatment facilities, nor would they be a hazard to worlcers in the facility under normal
circumstances. Spills of chemicals that might be involved in accident conditions will be
'administratively controlled by actions specified in the Operational Safety Analysis (OSA).
Considering the above factors, air quality impacts are not further discussed except un~r
personnel exposures and transportation impacts.
4.2.3.2 Water Quality
As discussed in Section 2.3.5, the water quality data for the 26 surface water and surface seq>
stations in om suggest that VOC cont~mination at these stations is a result, at least in part,
from soil and subsurface ~Dtamination at the 903 Pad, Mound, and East Trenches. The
proposed vapor extraction system will remove VOCs from the subsurface and may, over an
extended period of time, e1iminate enough source material to reduce VOC contaminants in the
om seeps, ponds, and creeks.
With respect to the Subsurface IM/IRA, potential impacts to water quality may also arise from
surface water runoff from disturbed ground surfaces' resulting in sediment transport to the
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surface waters in both South Walnut Creek and Woman Creek drainage basins. However,
erosion control measures, as defined m the construction specifiCations, would prevent any
contaminated runoff from entering surface waters. Techniques may mclude, but not be limited
to: fiber compost nets; grouted riprock; hydromulcbing and seeding; erosion bales to prevent
mnon; and benches, berms, and silt fences to control runoff. The area. impacted by the
construction would be restored immediately upon completion of the project.
Soils withID om are CODtaminated with plutonium, uranium, and americium (Rockwell
International, 1989a). During drilling and vapor extraction system installation, surveys would
be performed to detect any radiQactive. contamination. Significant radioactive contammation
would be handled in accordance with the PSHSP procedures.
With respect to water treatment, spills of subsurface water, chemicals, or treatment media
associated with operation and maintenance of the vapor extraction system will be mitigated by
use of secondary containment, which would likely capture all of the spilled material. Spills of
liquid$ resultIDg from accidents will be controlled by actions specified m the OSA. Transport
of secondary wastes will be in accordance with standard Plant and project-specific operating
procedures and presents a negligible hazard to on-site or off-site water quality. Considering the
above factors, water quality impacts are not further discussed.
4.2.3.3 Terrestrial and Aquatic Impacts
Regulations which require federal agencies to assess project impacts on terrestrial and aquatic
biota include: NEPA of 1969, the Fish and Wildlife Coordination Act (FWCA) (16 U.S.C.
661-666c), the ESA of 1973 (Public Law 93-0205), the CWA as amended, and the Migratory
Bird Treaty Act (16 U.S.C. 1701-1711) and DOE Order 5400.5. Related guidance mcludes:
DOE, 1988, Environmental Guidance Program Reference Book; ESA and the FWCA, U.S.
DOE, Washington, D.C.
Terrestrial popu1ations that may be negatively impacted by drillIDg and excavation within om
for subsurfaCe. remediation include: vegetation, ground-dwelling rodents, reptiles, and
invertebrates. However, none of these terrestrial populations are threatened or endangered, and
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they can be expected to quickly re-establish their populations in the disturbed area.
Furthermore, areas of impact will be minimal (less than 50 feet by 50 feet) and any loss of
vegetation could be offset somewhat by reseeding distUIbed areas with native grass and shrub
species. Therefore, impacts to terrestrial ecosystems from subsurface remediation will not be
further discussed in subsequent sections.
The nearest point of aquatic life that may be affected by the collection, treatment, and discharge
of subsurface COD~minated ground water is South Walnut Creek. The quality of effluent
discharges and the effects on aquatic biota are evaluated and discussed in the Surface Water
IM/IRAP for South Walnut Creek (EG&G, 1991e).
4.2.3.4 Threatened and Endangered Species
Representative laws and regulations which protect threatened and endangered species include:
the NEPA of 1969, the ESA of 1973, the CW A as amended, and the Migratory Bird Treaty Act.
Federal agencies must ensure that actions authorized, funded, or carried out by them will not
jeopardize the continued existence of any endangered or threatened species (EG&G, 1991g).
Section 7(a)(2) of the ESA requires federal agencies "in consultation with and with the assistance
of the Secretaries of the Interior and Commerce, to ensure that their actions are not likely to
jeopardize the continued existence of any endangered or threatened species or result in the
destruction or adverse modification of the critical habitat of such species...." The statutory
authority is listed as follows: Section 7 of the ESA of 1973 (16 U.S.C. 1536), P.L. 93-205,
December 28, 1973; as amended by P.L. 95-632, P.L. 96-159, and P.L. 97-304. Authority to
conduct consultations has been delegated by the Secretary of the Interior to the Director of the
USFWS who has authority over endangered or threatened species and their critical habitats as
listed in 50 CPR 17.
Related guidance implementation includes the following:
.
50 CPR Part 17 - Endangered' and Threatened Wildlife and Plants (includes
critical habitats). .
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.
50 CFR Part 225 - FederallState Cooperation in the Conservation of Endangered
and Threatened Species.
.
50 CPR Part 402 - Interagency Cooperation.
.
Environmental Guidance Program Reference Book. U.S. Departtnent of
Energy, 1988.
.
Endangered Species Act, and the Fish and Wildlife Coordination Act, U.S.
DOB, Washington, D.C.
The drilling and excavation for subsurface IRA in om will not affect potential habitat suited
for threatened and endangered species. Although there are three endangered species of interest
in the RFP area, there is no.critical habitat present for these species in the om area. The three
endangered species of interest in the RFP area are the black-footed ferret (Mustele nigripes)
. (USFWS, 1988), the peregrine falcon (Falco peregrinus), and the bald eagle (Haliaeetus
leucociphalus) (BG&G, 1991g).
Prairie dog colonies in the northeast area of the plant site provide the potential food source and
habitat for the black-footed ferrets. However, no pIairie dog towns exist in or near the om
o
area sO black-footed ferrets are likely not to exist in this area (DOE, 199Oa).
Peregrine falcons were not observed during the reconnaissance~level surveys for the threatened
and endangered species evaluation (BG&G, 1991g), although two historic nest sites are located
within 10 miles of the RFP site. The Peregrine Falcon Recovery Plan (USFWS, 1984)
discourages land-use practices that would adversely alter the character of their hunting habitat
or prey base within a 100mile radius of a nest cliff (including historical sites). Because peregrine
falcons prey exclusively on waterfowl and other birds, drilling extraction and or injection wells
in om and installation of wells in om will not affect the hunting habitat or the prey base for
the peregrine falcon.
Although bald eagles (Haliaeerus leucocephalus) are identified as occasionally using habitat
between 0.3 and 1.1 miles from the RFP site during the winter months, sightings are rare and
little suitable habita~ occurs. No bald eagle nests occur on plant site (DOE, 199Oa).
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Based on the above discussion, further consideration of impacts to threatened and endangered
species for om IMIIRA is not warranted and is not included in subsequent sections.
4.2.3.5 Cultural Resource
NEPA (1969) and the National Historic Preservation of 1966 (Public Law 89-665), together with
subsequent law amendments (Public Laws 91-243, 93-54, 94-422, 94-458), provide that all
federal agencies implement programs for the protection of historical and archeological resources.
Section 106 of the National. Historic Preservation Act requires federal agencies to consider the
effects of the proposed actions on properties eligible for or listed on the National Register of
Historic Places. Section 110(t) of the National Historic Preservation Act requires specifications
in federal agency's actions to minimi7.e harm and adverse effects to National Historic
Landmarks. Regulatory guidance procedureS include the following:
.
36 CFR 800 - Protection of Historic and Cultural Properties (51 FR
31118-31125, September 2, 1986).
.
Environmental Guidance Program Reference Book. Historic Preservation
Requirements. U.S. Department of Energy, 1987. U.S. DOE, Washington,
D.C.
.
Guidelines for Federal Agency Responsibilities under Section 110 of the National
Histonc Preservation Act (53 ER 4727-4746, Febmary 17, 1988). National Park
Service.
.
National Register of Historic Places (published by the National Park Service at
various times in the Federal Reemer) (reference to these listings is in DOE.
1987). .
.
Advisory Council on Historic Preservation, 1986. Section 1206, Step-by-step.
.
National Register Bulletins issues periodically by the National Park Service.
Compliance with Section 106 requires federal agencies to identify and evaluate historic
properties. The RSO (DOE Order 5440.1c) and the State Historic Preservation Officer locate
and evaluate the eligibility of possible historic properties for the National Register of Historic
Places. A cultural resource study of the RFP was conducted between 31 May and 28 June 1991
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that identified 45 cultural resources, none of which were recommended as eligible for listing on
. the National Register of Historic Places (EG&G, 1991a). In addition to the 45 sites located
during the 1991 sUIVey, six previously identified historic sites were also previously determined
to not be eligible for listing .on the National Register for Historic Places. They were not re-
evaluated during this site-wide archeological suIVey. The State Office of Archeology and
Historic Preservation has determined that any action in the vicinity of om will not impact
cultuml resources (Burney, .1989). Therefore, further discussion of historic and archeological
sites is not included in subsequent sections.
4.2.3.6 Short- and Long-Term Land Productivity
. Land within om is currently undeveloped and will remain so for the foreseeable future as part
of the Rocky Flats Plant. om lies within. the Rocky Flats security boundaries and is not
accessible to the general public. Short- and long-term land productivity will not be altered by
the project and, therefore, is not discussed.
4.2.3.7 Personnel Exposunas
DOE NEP A documentation includes analysis of potentially significant occupational impacts to
workers and the public. This analysis includes radiological and nonradiological impacts under
routine and accident conditions. Analysis of accidents includes potential impacts to workers as
a result of an accident, and potential impacts associated with clean-up activities.
Wb.en analyzing occupational impacts, credit was taken for worker protection provided by the
.Environmental Restoration Health and Safety Program Plan (ERHSPP). The ERHSPP addresses
the minimum health and safety requirements for outside contractors as dictated by the EM
Department and the Health and Safety (lIS) Department. The ERHSPP outlines the
requirements for a PSHSP that identifies constlUcUon tasks, potential hazards and the steps to
control hazards. The PSHSP would be prepared in accordance with guidelines set forth in the
ERHSPP, and the Plan for Prevention of Contam.bgnt Dispersion (pPCD) (EG&G, 1991d), and
would be completed after the IMIIRA design is :" ized. The PSHSP must be approved by the
EM and HS Departments, and will be reviewed by EPA and CDH. Worker protection is also
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addressed by the OSA which is completed during preparation of the PSHSP. The OSA
addresses health and safety concerns originating from routine site operations.
Drillin9 Activities
Potential personnel exposures during drilling/vapor extraction system installation activities would
result from several pathways:
.
Dermal and airborne exposure to VOCs or radioactive materl31s from subsurface
water and drilling fluids. .
.
Airborne exposure to radionuclides and VOCs while drilling the wells.
There would be limited potential for dermal contact with contamin~tM soil and fluids
considering the small amount of soil cuttings generated (-2 yft). Also, the PSHSP would
specify the appropriate levels of personnel protection (e.g., respirators, gloves, goggles,
protective clothing) to protect against inh~1arion and direct contact with contaminants.
Considering the personnel protection and limited potential for dermal exposure, and that dermal
contact is a minor exposu~ route for the identified contaminants, potential impact to workers
would be negligible. Airborne exposure of workers and the public to radionuclides and VOCs
will be prevented through the PPCD and the PSHSP. Access controls to the plant site and
drilling areas would preclude dermal contact as a credible exposure route for other site personnel
and the public.
Routine OperatioDS
Potential exposure routes for remediation workers, other on-site personnel, and members of the
general public during routine operations include:
.
Airborne exposure to VOC vapors from the subsurface water collection system
sumps, the tank truck, the process influent tank, and from the water treatment
process equipment.
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.
Dermal contact with contaminants while performing operations and maintenance
activities.
.
Fugitive dust generated in the wake of vehicles traveling to the water collection
stations for maintenance and surveillance activities.
Subsurface IMIIRA ope~ons and maintenance activities would be performed in accordance
with OSA procedures, which specify appropriate levels of monitoring and personnel worker
exposure protection. Considering the unconfmed nature of the work areas and administrative
controls, potential worker exposures to airborne VOCs would be very low. Airborne VOC
concentrations and resulting exposures to other on-site personnel and the general public would
be significantly less because of their greater distance from the source. The potential for chronic
exposure of workers to VOCs resulting from operational tasks associated with the GAC
adsOlption system would be small, considering replacement of GAC units does not involve
contact with spent carbon, and OSA procedures will be in place to protect workers from
potential hazards.
Personnel protective measures may be necessary during some routine operational activities where
there is a potential for worker contact with CODtaminated water; Appropriate measures would
be followed as specified in the OSA for those activities. Access controls would preclude dermal
exposure as a credible pathway for other on-site personnel and the general public.
Occasional travel to the subsurface water collection stations will be required for maintenance and
surveillance pUIpOses. While some fugitive dust may be generated in the wake of vehicles, it
is not expected to be a significant exposure pathway (or the vehicle operator, other on-site
personnel, or the general public because of the short travel distance on unpaved roads and the
anticipated low frequency of travel to the collection stations.
Any accidents that may occur during the installation phase of the proposed action would be
typical of drilling activities. The PSHSP will identify appropriate precautions and
responsibilities for each job. The PSHSP will also specify appropriate air monitoring and
response procedures in the ~vent of an unusual VOC or radionuclide release. Workers will be.
familiar with the PSHSP and a copy of it will be available at the work site.
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During operations, accidents that could impact either workers or members of the public would
include fires or major spills of contaminated material. Potential releases of untreated water
. .
along the truck route or proposed pipeline or within the existing treatment facilities would create
the potential or short duration airborne VOCs. Intake of contaminants by workers involved in
the cleanup would be controlled by following safety precautions specified in the OSA.
This section on personnel exposures applies to all three proposed actions. Therefore, further
discussion of personnel exposure is not included in subsequent sections.
4.2.3.8 Commitment of Resources
Commitment of Resources' is evaluated by e:ramining the economic and ecological value of
materials (and labor) required for the IMIIRA preferred actions. The resources (including both
material and labor) required for construction and operation of this Subsurface IMIIRA are
relatively minor. No significant commitment of economicany or ecologically valuable resources
is involved. With the exception of the land area, all the materials for construction and operation
of the surface water treatment system will be irrevocably and irretrievably committed to the
implementation of remedial action. The facilities proposed for treatment of the Subsurface
IMIIRA-generated water utilize pre-existing process equipment and do not require additional
. .
purchaSe and installation of treatment facilities for the IMIIRA.
4.2.3.9 Tramportation Impacts
Human health impacts due to transportation include latent effects associated with vehicle
pollution, in addition to traumatic injuries and fatalities resulting from accidents. Normal
transportation is associated with incremental pollution from engine emissions, fugitive dust
generation in the vehicle's wake, and particulates from tire wear. The table below presents
estimates of risks (Rao et al., 1982) resulting from truck and rail transportation. Uncertainties
are associated with pollution emission rates and atmospheric dispersion behavior. To
compensate for these uncertainties, the analysis utilized conservative estimates for determining
pollution health effects. The tabulated accident impacts are average values over population zones
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(urban, suburban, rural) and are derived from Department of Transportation (001) nationwide
statistics.
Estimates of Risks Resulting from Truck and Rail Transportation
Health Effects per Kilometer
Transportation
Source Mode LCFs* Injuries F~b:I Hties
Pollutants Truck 1.0 E-7
(urban only)
Rail 1.3 E-7
(urban only)
Accidents Truck 5.1 E-7 3.0 E-8
Rail 4.6 E-7 3.4 E-8
. LCFs represent latent cancer fatalities resulting from incremental vehicle pollution, and would occur after a
latency period fonowing initial exposure.
Drilling fluids and cuttings are to be treated as hazardous material and transported in accordance
. .
with appropriate DOT regulations and DOE orders. Transport and handling of other hazardous
materials will alsO be in accordance with appropriate regulations and orders and the On-Site
Transportation Manual (DOB, 1991c). Emergency response procedures for accidental spills or
container failures are described in Section 17 of the On-Site Transportation Manual. Estimation
of transportation impacts for the 903 Pad, Mound, and East Trenches Subswface IMIIRAs is
detailed in Appendix E.
.,. .
4.2.3.10 Wetlands and FloodpbPDs Impact Assessment
.The relevant laws and acts that protect wetlands and floodplains include: NEPA of 1969;
Section 401 and 402 of the CW A; the Fish and Wildlife Act of 1956 plus associated coordination
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acts; and regulations promulgated under 10 CPR Part 1022 - DOE Compliance with Floodplain
Wetlands Environmental Review Requirements. The rules promulgated under NEPA 42 U.S.C.
4321, et seq., in 40 CPR parts 1500 through 1508 state that all federal agencies are required to
consider the environmental affects of any proposed action (EG&G, 199Od). Since the proposed
actions are at least 400 feet away from any wetlands and are not within a floodplain, 10 CFR
Part 1022 does not apply.
Executive Orders (E. 0.) that require federal agencies to consider the effects of proposed action
on wetlands and floodplains are as follows:
.
E.O. 11990 Protection of Wetlands (May 24, 1977).
E.O.11988 Floodplain Management (May 24, 1977).
.
These orders require federal agencies to avoid, to the extent possible, destruction and
modifications of wetlands, and adverse impacts associated with the occupancy and modification
of floodplains. Federal agencies are required to determine if wetlands and floodplains that may
be affected by the action are present, assess the impacts on these environments, and consider
alternanves to the action. DOE regulations establishing policy and procedures for the RFP site
in compliance with E.O. 11990 and 11988 are found in 44 PR 12594 (7 May 1979).
Documentation of a wetlands and/or floodplain review involves: (1) public notification of intent
to perform a wetlands/floodplain review; (2) wetlands/floodplain assessment; and (3) a statement
of findings for actions involving floodplains.
When an action in a wetlands and/or floodplain requires an EA, the wetlands and/or floodplain
assessment will be prepared concurrent with, and is included in, the EA. Wetlands and/or
floodplain assessments that are part of the EA are subject to approval by the Assistant Secretary
for the Environment, Safety and Health. Actions in wetlands may, but do not ~ecessarily,
require an EA (DOE, 1988).
SUBSURFACE M'ERJN REMEDIAL ACTION PUN
ROCKY FLATS PIANf. OOLDEN. COLORADO
CI&a.inplfiaaM\8d Jtl.ocp
FlNAL
Sc:pIaDber 1992
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4.2.3.11 Cumulative Impacts
A "cumulative impact" is defined in 40 CPR 1508.7 as "the impact on the environment which
results from the incremental impact of the action when added to other past, present, and
reasonably foreseeable future actions regardless of what agency (federal or non-federal) or
person undertakes such other actions. Cumulative impacts can result from individually minor
but collectively significant actions taking place over a period of time." Cumulative impacts will
incolpOrate similar, previous IMIIRA actions in the same geographic location and consider
impacts on aquatic and terrestrial biota, and impacts from constmction and operations of the
proposed action to on-site personnel and the general public (DOE, 1988d). It is noted that air
quality and water quality impacts are not cumulative because emissions, discharges, or releases
. are not expected to occur during routine operations. Impacts resulting from installation activities
or operational accidents would be short lived and are, thus, also not cumulative.
4.3
VACUUM-ENHANCED VAPOR EXTRACTION AT 903 PAD cmss NO. 112)
This section presents a detailed description of the proposed action at the 903 Pad. This
discussion focuses on the rationale and criteria for selecting the test site at the 903 Pad, expected
test site conditions, proposed treatment systems, and Observational/Streamlined Approach
considerations with respect to deviations in expected test site conditions. The.criteria presented
below for 903 Pad test site selection were also used to select sites at the Mound and East
Trenches Areas (Sections 4.4 and 4.5, respectively).
4.3.1 Test Site Descriotion
4.3.1.1 Test Site Selection Rationale
The criteria listed below were used to guide test site selection. The test area should possess:
.
A relatively high probability of containing residual free-pbase DNAPL in the
vadose andlor saturated zone.
.
A low probability of containing buried drums.
SUBSURFACE INTBRIM REMBDIAL AcnON PlAN
ROCKY PlATS PLANr. GOLDEN. COLOItADO
ccotclA-inp\fiaaJ4\1co4 ..JIIl.8CI'
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.
A low probability of containing metallic Po or U.
The first criterion is related to the proposed remedial technology, in sitU vacuum-enhanced vapor
extraction. As discussed in Section 4.1, in sitU vacuum-enhanced vapor extraction is a VOC
source removal technology I requiring the presence of residual free-phase chlorinated solvents
in order to demonstrate successful performance. In addition, the test site should not contain
buried containers because the proposed actions involve drilling boreholes. Penetration of a
buried drum containing waste will likely result in a release of contamination to the subsurface.
Lastly, the test site should not contain buried metallic Po or U as these materials are potentially
autopyrophoric and should not be distuIbed during drilling or vapor extraction activities.
mss No. 112 (see Figure 2-2), a former drum storage location at the 903 Pad, satisfies all three
. test site selection criteria. With respect to the first criterion, drums stored at DlSS No. 112
between 1958 and 1967 reportedly leaked an estimated 5,000 gallons of fluid onto the ground
(Freiberg, 1970). Calkins (1970) reports that fluids stored at the 903 Pad included: lathe
coolant consisting of hydrocaIbon oils, and carbon tetrachloride in varying proportions; hydraulic
oils; vacuum pump oils; TCE; and PCE. Camon tetrachloride was detected at a 6,400 p.gl t
,
in a water sample collected in September 1990 from alluvial monitoring well 1587 which is
located downgradient of the 903 Pad (see Figure 2-11). 'Ibis well is located approximately 300
feet from the suspected spill location, suggesting .much higher concentrations at the spill site.
DlSS 112 satisfies the second criterion based on reports indicating that drums were not buried
at this location. All drums were stored on the ground and subsequently removed. Reportedly,
the only metallic nuclear material released at the 903 Pad is an estim9ted 86 grams of finely
divided plutonium (Freiberg, 1970) of which a significant portion was removed during
subsequent remedial efforts. A study conducted by Clark (1991) concluded that plutonium in
the 903 Pad soil is inert with respect to pyrophoricity (Clark, 1991).
The specific location of the fluids released at 903 Pad was determined by review of aerial
photographs which reveal the former location of storage drums and areas of stained soils (Figure
4-1). The proposed action will be conducted in an area of stained soils in the north-central
. .
portion of DlSS No. 112. .
SUBSURFACE INTBlUM REMEDIAL AcrION PlAN
ROCKY PlATS PLANT, Q01J)EN; COLORADO
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. _.-.~;.
o
-
-
o
,.....
t')
Original Drum Field Fence
Edge of 903 Asphatt Pad
I~
395 ft
EXPI..ANA110N
o MEA aF SOIL srAINNG BASED C* AERIAL PHOTOGRAPHS FROU:
4/'lJ/~. 4/10/" 5/24/"
BARR£L S10RAGE L.OCA11ONS BASED ON AERIAL PHOrOGRAPHS FROM:
5/5/13. 4/3/15. 4/3/11. 1/10/&
NOm BUIUJIC 103 LOCA11CIN BASED ON AERIAL PHOTOGRAPHS FROII 4/10/&
o
~.
. .
. .
.... ...:
... .. . .
0.....:. ,
i
C'I
C8
~
~
I
':!
SUBStJRJIACE 1NI1!R!:" RBMEDIAL AcrION ~
ROCKY PLATS PLANT, OOLDEN. COLORADO
CCa,\u.inplfillal4'-4J'd.1Cp .
January 1992
U.s. . DEPARTMENT Of' ENERGY
Rocky Flats Plant
Golden. Colorado
APPROXIMATE LOCATIONS OF
DRUM STORAGE
903 PAD DRUM STORAGE SITE
FIGURE
-4-1
PINAL
Scpcember 1992
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4.3.1.2 Expected Conditions
Site-specific geologic, hydrologic, and contaminant type and distribution information local to the
proposed 903 Pad test site is not currently available. Therefore, an idealized conceptual
hydrogeologic and contaminant distribution model has been developed based on information
derived from geologic logs, water level data, and ground-water chemistry from investigative
activities conducted near the proposed test site. The site-specific conceptual model was further
refined using the geologic log of the borehole drilled for monitoring well 1687 located
approximately 300 feet east of the 903 Pad. This log is representative of the 903 Pad Area and
is presented in Appendix D. The idealized conceptual model of the 903 Pad pilot test site is
illustrated in Figure 4-2. The diagram. illustrates the hydrogeology and contaminant distribution,
expected to exist within 50 feet of the ground surface.
Sand and gravel alluvium extends to approximately 18 feet below ground surface. It is expected
that the alluvium contains unconfined ground water perched on' bedrock with a saturated
thickness of approximately 4 feet. Furthermore, the saturated thickness will likely vary
seasonally. The alluvium overlies claystone bedrock which may contain isolated or
interconnected fractures. The claystone bedrock is not expected to contain recoverable ground
water.
It is expected that carbon tetrachloride comprises the majority of the released hazardous
contaminants with lesser amounts of TCE and PCE. As discussed in - Section 4.1, these
-contaminants have limited solubility in water and have a specific gravity greater than 1.0 (i.e.,
DNAPL). The conceptual model thus indicates the vertical migration of these DNAPLs through
- the vadose zone and the saturated alluvium coming to rest in structural depressions on the
claystone bedrock surface. Infiltration of DNAPL along bedrock fractures is also shown. A
review of existing monitoring well design and ground-water chemistry (Rockwell, 1987a) with
respect to the presence of dissolved versus residual free-phase chlorinated solvents in the
claystone bedrock near the 903 Pad was inconclusive. It is important to note that the presence
of pools of DNAPL perched on the bedrock is also uncertain and may never be conclusively
determined. However, the presence of a dissolved carbon tetrachloride plume coupled with the
presence of stained surface soils and an estimated release of 5,000 gallons of fluids suggests the
SUBSURFACE INTERIM RBMEDIAL AcrION PLAN
aocxy FLATS PLANT. OOLDEN, COLORADO
cc&c\a-inplfiDll4'-4 J'U.1Cp
PINAL
ScpIaDbcr 1992
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: ~i
.~~
; (;I (;)
~ ~ I
:8;
:Ge
,~
~>
~~
~
~
if
~-
~!
232
... ...
...
... ... ...
... ... ... '" ... ...
... ....
... ..., ,,, ...
...
...
...
... STAINED
SURFACE
SOIL
...
...
...
o
10.
20.
POSSIBLE
DNAPL POOL
----
30.
-
.FRAC1\JRED CLAYSTONE
40'
~
!
. CLAYSTONE BEDROCK IS EXPECTED TO BE DRY
ti~2~~
tF
U.S. DEPARTMENT Of ENERGY
Rocky flats Plant
Golden, Colorado
IDEAUZED CROSS-SECTION
903 PAD AREA (IHSS 112)
...
MIGRAtiNG
DISSOLVE PHASE
PLUME
WATER TABLE
RESIDUAL DNAPL
(DENSE NON-AQUEOUS
PHASE UQUID)
ALLUVIAL SAND AND GRAVEL
FRACTURED CLAYSroNE
BEDROCK
..fAST
FIGURE
-------
presence of residual free-phase chlorinated solvents in the vadose and saturated zones which
. .
would constitute a continuing source for the dissolved-phase contaminant plume.
4.3.2 Remedial Approach
4.3.2.1 Proposed Action Based on Expected Conditions
This . section provides a detailed description of the interim remedial action proposed for
implementation at. the 903 Pad test site. The proposed action is based on the idP.:l1i7ed
conceptual hydrogeologic and contaminant distribution model described in Section 4.3.1.2, and
involves:
.
In situ vacuum-enhanced vapor extraction coupled with ground-water depression
for the alluvial material. .
.
In situ vacuum-enhanced vapor extraction for the upper portion of the claystone
bedrock.
A second site may also be selected at the 903 Pad to. conduct tests of in situ steam stripping for
removal of both VOC and radionuclide CODtamination. Further consideration of this technology
is deferred pending completion of treatability studies being conducted by LLNL. The reader is
referred to Section 4.1 for additional explanation of in situ steam stripping.
This section first discusses the elements of the vapor and ground-water extraction system
followed by a description of the proposed vapor and ground-water treatment systems.
Vaoor and Ground-Water Extradion
Figure 4-3 illustrates the location and configuration of the vapor and ground-water recovery
wells to be installed at the 903 Pad. Two alluvial vapor extraction wells will be installed in an
area of stained soils in the north centIal portion of mss No. 112 (Figure 4-1). The existing
asphalt cap on 903 Pad is expected to prevent short circuiting of air flow from the atmosphere .
to the extraction wells. Ground water will be extracted from the alluvium using pumps installed
SUBSURPACB IN'I'BRD4 JU!MEDIAL AcrION PlAN
ROCICY PlATS PlANT, OOLDBN, COLOIIADO
ca&clu-inp\fiaaM'-4 JIU.1Op
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~;
.~~
; ijllJ
~ ~ I 0
'~I
,~ .. fAST
~> 10'
~~
e
20' BEDROCK
~ 30'
CROSS SECTION
AREA OF STAINED 0 @,
SOIL (FORMER jgJ~
DRUM STORAGE 0 @ J
ARFA)
it 903 PAD (IHSS 112)
PlAN VIEW
t-
1i4~ U.S. . DEPARTMENT OF ENERGY
Rocky Flats Plant
Golden. Colorado
...
...
... ....
~
.~
I
.....
0/
...
A1..LlMAL SAND AND GRAve.
FRACTURED ClAYSTONE
BmROCK
ww. SCREEN
RESIDUAL DNAPL
(DENSE NON-AQUEOUS
PHASE UQUID)
AIR R.OW
I
o
jgJ
~
WAlIR TABlE
DEEP VAPOR EXTRACnON WEll.
DEEP AIR INJEC110N WEll.
SHAlLOW AIR INJEcnON/
GROUND-WATER EXTRAcnON WEll.
SHALLOW GROUND-WAlIR AND
VAPOR EXTRAC110N WEll.
@
SCHEMATIC
GROUND-WATER AND VAPOR RECOVERY SYSTEM
903 PAD DRUM STORAGE SITE (lHSS .112)
FlCUR[
-------
in the vapor extraction wells. An air-tight seal will be installed at the top of the well casing to
allow the extraction of both vapor and ground water. A schematic diagram showing pump
placement and caSing cap is presented in Figure 4-4. Between these two wells, one air injection
well will be installed in the alluvium. This well will be used to depress the water table and
increase the volume of soils contacted by injecting ambient air. This will be accomplished by
connecting an air injection manifold to the well and also installing a submersible pump. The
pump riser pipe and air injection manifold will exit the well casing via an airtight seal. Ambient
. and heated air will also be injected during the test to determine if the additional air flow and heat
increases the rate of VOltitili7.:1tion of residual DNAPL. Ambient and heated. air will be injected
at a rate equal to one-half of the combined extraction rate. This is to ensure that injected air
does not further disperse vapor phase contaminants in the vadose zone. Under ideal conditions
of isotropy and homogeneity of the alluvial soils or bedrock, air flow lines can be expected to
form a closed loop between the injection and extraction wells given reasonably close well
spacing «25 feet). Radial pressure distribution equations (Johnson et. ai, 1989) will be used
during Test Plan development to insure that negative pressures are maintained at the boundary
of the test area.
Remedial efforts in the alluvium and bedrock will be isolated from each other in order to prevent
cross-contamination. Preventative measures include installing separate wells in the alluvium and
bedrock. Bedrock wells will be isolated from the alluvium by the installation of a steel surface
casing. Well constn1ction schematics are presented in Figure 4-5. Note that alluvial ground-
water extraction wells will have screened sections that penetrate several feet into the bedrock.
This is to allow for the collection and recovery of free-phase or "flowing" DNAPL should it be
encountered at the alluviallbedrock interface.
The results of the in siru pilot tests will be evaluated to assess the benefit of post-pilot operation
of the vapor extraction system at each of the IMIIRA test sites. The objective of post-pilot
. system operation is to recover significant amounts of VOCs from the test areas. Pilot test data
will be evaluated with respect to the following criteria:
.
Mass of VOCs recovered per unit cost.
Mass of VOCs recovered per unit time.
.
SUBSURFACE INTImIM REMEDIAL AcrION PLAN
aoccy FlATS PlANT, GOLDEN, COLORADO
ccac\u.inp\fmal4\scc4 -Pt1.scp
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VAPOR EXTRACTtON
..
GROUND WA1ER EXTRACTION
.
BENTONrT£ S£AL
SAND PACK
BOREHOLE WALl
6-INCH PVC. CASING
PIC WEll. SCREEN
....
AWMUM
BEDROCK
TOTAL FLUIDS
SUBMERSIBLE PUMP
VAPOR AND GROUND-WATER
EXTRACTION WELL
NOT 10 SCALE
-
..
..,
N
m
::II
I
12.
U.s. DEPARTMENT OF ENERGY
Rocky Flats Plant
Golden. Colorado
GROUND-WATER AND
VAPOR EXTRACTION WELL
SCHEMATIC
F1U£
4-4
SUBSURPACE INTBRJM REMBDIAL AcrION PIAN
ROCKY PLATS PL\NI'. COLDEN. COLOJADQ
cs&C\u.inp\fiDal4\1ec4 JIU.1tp
PINAL
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ALLUVIAL WELL
BEDROCK WELL
K
4-INCH PIC a-INCH BLAN
GROUND SURFACE BlANK CASING .... srm CASING
CEMENT SEAL I ~ I BENTONITE // :-.: 14-INCH PIlC
1 SEAl.. '/ Y IBLANK CASING
SAND PACK -
PVC WB.LI ~ BOREHOLE WALl "
SCREEN I Catoo SEAL
1'/
/, ,,"'
ALlLMUM AU.LMUM
BEDROCK ~ BEDROCK
H >- IBENTONIT£
H I SEAL
~
SAND PACK
i
.. 14-INCH PVC
WELL SCREEN
VAPOR EXTRACTION WELLS
NOT TO SCALE
i
c;t
iii
2
I
u.s. DEPARTNENT OF ENERGY
Rocky Flats Plant
Golden. Colorado
VAPOR EXTRACTION WELLS
SCHENA TIC
FIGURE
4-5
SUBSURFACE JNI'ERIM Rl!MEDlAL AcnON PLAN
ROCKY FLATS PLANT, GOLDEN, COLORADO
C2&Rltt-inp\fiul411C1D4 ...JIt1.scp
PINAL
SepIr:mber 1992
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.
Areal influence of vapor extraction system.
Ability to successfully control the mobility of contaminants.
Ability to successfully dewater aquifer material (if present).
.
.
These criteria will be used to evaluate the pilot test data within the context of the limitations
imposed by test site geology and contjlminant distribution, logistical considerations, and costs
relative to alternative residual free-pbase VQC-removal technologies (e.g., excavation). As
discussed in Section 5, the pilot test data, data analysis, and recommendations for continued
system operation at the three test sites will be presented in a Pilot Test Report.
The conceptual hydrogeologic model illustrated in Figure 4-2 shows some limited penetration
of DNAPLs into bedrock fractures. To evaluate the potential to recover residual DNAPL (if
any), two vapor extraction wells will be installed in the upper portion of the claystone bedrock.
One air injection well will be installed between the two extraction wells. All bedrock
extraction/injection wells will be installed to a minimum depth of 30 feet into the bedrock. No
recoverable ground water is expected in the upper portion of the bedrock.
Dynamic system performance will be evaluated by monitoring vapor recovery rates, contaminant
concentrations in recovered vapor and by measuring vacuum induced in the subsurface. Vapor
recovery rates will be meaSured using a dedicated pitot tube installed in the vapor collection
manifold. Contjlminant concentrations will be measured by sampling recovered vapor with
subsequent chemical analyses. Formation pressures will be measured in recovery wells and the
injection well prior to injecting air. Dedicated valves between the vapor collection manifold and
each vapor extraction well will allow one well to be operated independently while formation
pressures are measured in the adjacent well. In addition, two or more temporary vacuum
monitoring probes will be placed within the test area to determine the area of influence of the
vapor extraction system.
System effectiveness will be evaluated by establishing initial conditions through collection of soil
samples during the advancement of boreholes for well in.al1ation and subjecting them to
laboratory analyses. Upon completion of the IRA, additional soil samples will be collected in
SUBSUItl'ACE INTERIM REMEDIAL ActION PLAN
ROCKY PLATS PIANT, OOLDBN, COLOItADO
cca,\a-inplfiDaJ4'-4..J1C1.1C11
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the proximity of the original samples. Comparison of contamin~nt concentrations before and
after the test will provide a quantitative evaluation of system effectiveness.
The proposed test site selection was based on qualitative data from the proposed test site and
conditions exttapolated from quantitative data collected near the proposed test site. Should the
proposed test site prove inadequate, an alternative test site will be selected. The most likely
reason for poor site conditions is the absence of residual free-phase DNAPL. A pre1imin~ry
threshold for determining success will be concentrations of hydrocarbon compounds in the
recovered soil vapor equal to I part per million (ppm) as measured with a portable
photoionization detector calibrated for the major contaminant expected at each test site (Le.,
CCl. at 903 Pad). This value was selected because it is the lowest concentration which can be
reliably detected with basic field instromentation. The hydrocarbon concentrations will be.
confirmed by subsequent laboratory analyses. The test will be conducted for a minimum of 7
days before abandonment and new site selection. IT the recovered vapor contains hydrocarbon
concentrations equal or greater than I ppm, the test duration will be determined while the test
is in progress. In any case, the test duration should not exceed 3 months.
Therefore, implementation of this technology may be appropriate under the criteria, outlined in
the introductory paragraphs of this section, once treatability studies have been successfully
completed.
A preJiminary review of potential test sites revealed 903 Pad as the most suitable test site.
Releases of VOCs are suspected to have occurred at the 903 Pad and finely disseminated
radionuclide CODtamin~tion is known to be present in the soil. However, further evaluation of
this technology is deferred pending completion of the treatability. studies.
Vapor and Ground-Water Treatment
Vapors extracted from the subsurface at the 903 Pad will be treated for removal of particulates
and VOCs prior to discharge to the atmosphere as illustrated in Figure 4-6. The vapor treatment
system conceptually illustrated in Figure 4-6 will be newly constructed specifically for the
Subsurface IMIIRA. Extracted vapors are first passed through a mist eliminator to remove
SUBsUJUIACB JNfBRIM REMEnIAL AcrION PLAN
ROCKY PLATS PU.NI'. COLDEN, COLORADO
cc&c'-inp\tiDal4'-4 JIIl.1Cp
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ScptaDber 1992
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FIGURE 4-6 Pilot Test Unit Vapor Extraction Syitem
SUBSURJIACB INTEIIM REMBDIAL AcnON PlAN
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entrained condensate that may be present. The mist eHminator is packed with staiDless steel
mesh that provides a large surface area that allows small entrained liquid droplets to coalesce
into larger droplets that separate by gravity from the vapor stream. Accumulated liquids are
gravity drained from the mist eliminator while the vacuum pump is off. Condensate genemted
by the treatment system will be placed in the ground-water holding tank for subsequent treatment
(discussed below).
Tbe vapor leaving the mist eliminator passes through a vacuum pump provides the driving force
for subsurface vapor extraction. The vacuum pump will be specified to provide a mnge of
opemtional service to accommodate the different subsurface conditions at each of the om pilot
test sites. Lower permeability clay soils at the Mound, for example, will likely require higher
vacuum pressure to be applied to the subsurface to induce adequate vapor flow than would be
required for the higher permeability soils at the East Trenches Area. Detailed specification of
the vacuum pump as well as all other treatment system components will be provided in the Pilot
Test Plan which will be prepared after regulatory agency approval of the Subsurface
IMIIRAPIEA (Section 5.1).
Tbe vapor exiting the vacuum pump is filtered by a HBP A filtration unit. HEP A filters contain
fabric filtration media that is capable of removing particulates as small as 0.3 microns with 99.7
percent efficiency (Federal Standard 209b). In this vapor treatment application, HBP A filtration
prevents fouling of downstream process equipment (Le., vacuum pump and GAC units) and
ensures opemtion within particulate emissions standards (Section 3.2.3). The, latter is
particularly important if the extIacted vapors contain particulates CODtaminated with
mdionuclides. Figure 4-6 shows that the vapor treatment process includes two HEP A filters
configured in parallel. One of the units is opemted in a standby mode, and thus provides
redundancy in the event that the on-line filter plugs or otherwise fails. Filter plugging is
monitored with the pressure indicators installed on the inlet and outlet of the HBP A filters.
The vacuum pump mentioned above imparts heat to the vapor stream as a result of the work
performed on the fluid. The magnitude of increase in vapor tempemture depends on many
factors including vapor flow mte and pump duty. The vapor stream may have to be cooled to
ensure efficient adsolption of VOCs by the GAC units. Optimal adsolption efficiencies are'
SUBSURJIACB INTERIM REMEDIAL AcrION PLAN
ROCICY PLATS PLANJ'. GOWEN. COLORADO
cc&,\D-inp\fDJ4'-4 JIU.ocp
FINAL
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achieved at temperatures less than 80°F. If required, a heat exchanger will be included in the
pilot system design to cool the vapor stream. Figure 4-6 illustrates a water-cooled heat
exchanger where warm water exiting the exchanger is sprayed cooled (i.e., evaporative cooling)
in a recirculation tank.
The cooled vapor stream is then processed through two GAC adsolption units for removal of
VOCs prior to discharge to the atmosphere. . Adsolption of VOCs is a result of a physico-
chemical attraction between the VOC molecules and the GAC, which provides a very large
surface area for adsorption to occur. The concept design includes two GAC units configured
in series (Le., lead and polishing positions). Once the GAC unit in the lead position is fully
loaded with VOCs (Le., spent), it is taken out of service. The polishing GAC unit is moved to
the lead position and a new GAC unit is placed in the polishing position. Physical movement
of the polishing GAC unit is not necessary to place it in the lead position. 'Ibis is accomplished
by changing the openIclosed configuration of the process valves. Spent GAC generated during
the pilot study phase of the IMIIRA will be analyzed for the presence of radionuclides to
determine whether it may be regenerated or must be managed as a mixed waste. Due to the
nature of this remedial action along with the presence of BEPA filtration upstream of the GAC
units, it is expected that the GAC will not be CODt;lminated with radionuclides and will be able
to be regenerated. Regeneration is typically performed by the manufacturer and involves the
passage of hot air through the bed to desorb the VOCs. The desorbed VOCs are then destroyed
by high-temperature incineration.
The instmmentation and analytical sampling locations shown on Figure 4-6 conceptually
illustrates the process information necessary to properly operate and evaluate the proposed
vacuum-enbanced vapor extraction and treatment system. Detailed specification and placement
of process instrumentation will be provided in the Pilot Test Plan. However, the following
discussion of process measurements that are common to a variety of vapor extraction system
configurations will aid in the understanding of process operation.
Level measurement ~n the mist eliminator indicates the amount of condensate that has
accumulated 'and notifies the operator of the need to drain the unit. As mentioned. above,
pressure measurement before and after the BEPA filters provides an indication of filter plugging. .
SUBSURPACII INTB1UM RBMBDIAL AcnON PlAN
ROCKY PlATS PLUn'. OOLDEN. COLORADO
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Based on this differential pressure measurement, the standby filter containing virgin fllter media
is brought on line. The spent filter is taken off line and its filter media replaced. Similarly,
differential pressure measurement across the GAC units provides an indication of unit loading
and/or plugging.
Real-time monitoring is often employed for critical parameter measurement, alarm, and control.
For the proposed vapor treatment system, on-line radiation monitoring immediately downstream
of the HEP A filters detects failure of the fllters to remove radionuclide-contaminated particulates
if present in the extracted vapors. Likewise, real-time VOC leak detection is used to monitor
the integrity of system piping and connections to ensure emission-free operation. Leaks in
process piping located downstream of the vacuum pump (i.e., positive pressure side) and .
upstream of the GAC units may result in VOC emissions. Leaks on the negative pressure side
. of the process do not .result in undesired emissions. Rather, atmospheric air is pulled into the
system. RCRA leak detection is often implemented by monitoring the secondary containment
cavity of the process piping. Specifically, a hydrocarbon sensor is placed into the secondary
containment cavities of the process piping and connected to an alarm. In addition to these
alarms, the signals from the real-time radiation and VOC sensors may be used to provide
automatic shutdown of the system. Details of control signal wiring will be presented in the Pilot
Test Plans.
Vapor flow measurement and analysis of vapor samples will allow calculation of contaminant
mass recovery rates, and thus, evaluation of system performance. Comparison of upstream and
downstream vapor flow measurements provides additional information for assessment of system
vapor leaks. Measurement of the temperature of the vapor leaving the heat exchanger is crucial
in maintaining the operating efficiency of the GAC units.
As mentioned above, pilot testing of the in situ vacuum-enhanced vapor extraction system
involves injection of ambient and heated air into the test area formation to study the effect on
VOC mass recovery. Figure 4-7 illustrates the equipment that will be used for air injection: a
blower and liquid propane gas-fued heater. This equipment will be. sized during the detailed
design phase of the IMIIRA (Le., Test Plan) to provide a range of operational service that
accommodates the different subsurface conditions at each of the om test areas. Process
SUBSURFACE INI'EJUM REMEDIAL AcnON PLAN
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~~~
;. ~ ~
i~1;)
~~I
b~1
~~
8>
~~
8~
if
t :;-
..."
08 t.."
048.
ATMOSPHERE
AIR
INJECTION
BLOWER
INLET FILTER
~
.tiME:
VAPOR INJECTION EQUIPMENT
IS MOUNTED ON A FLATBED'
TRAIlER FOR rASE OF TRANSPORT
TO "fACH PILOT lEST SITE. "
u.s. DEPARTMlNT OF ENERGY
~ocky Flat Plant
Golden, Colorado
GAS-FIRED
HfATER
HfATED AIR
" TO INJECTION
WEU.S
VACUUM
PUMP
VAPUI<1 VALVE
January 1992
FIGURE
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instIUments and controls will be used on the air injection system to ensure proper control of air
flows and temperatures.
As noted on Figures 4-6 and 4-7, the vapor injection, extraction,- and treatment system
components are mounted on a flat-bed trailer. This allows the equipment to be easily moved to
different vapor extraction test sites. Electric power necessary to operate these systems at the 903
Pad test site will be obtained from existing power lines in the vicinity of 903 Pad. Electric
power-driven equipment includes vapor and ground-water extraction pumps, air injection blower,
instrumentation and controls, cooling water circulation pump, and heat tracing.
The South Walnut Creek Basin Surface Water Treatment Facility (Section 4.6.1) is proposed for
use in treating contamjn~ted ground water and condensate generated by Subsurface IMIIRA pilot
test activities at the 903 Pad. This facilitY has been selected because of the uncertainty
associated with the chemistry of the ground water that may be recovered directly beneath the 903
Pad. The South Walnut Creek Basin Surface Water Treatment Facility is the only existing or
planned RFP treatment system that has been designed to address all of the potential contamin~nts
of concern. At om these contamjn~nts include VOCs, radionuclides (i.e., Po, Am, and U),
and metaJ.s. The 881 Hillside Ground-Water Treatment System, for example, has been designed
to remove VOCs, metals, and U, but not Po or Am. Proposed use of the South Walnut Creek
Basin facility to treat contamjn~ted Woman Creek Basin Surface seeps and discharge the treated
water to the South. Walnut Creek drainage (EG&G, 1990e) encountered strong public opposition
with respect to interbasin transfer of this seep water. It should be noted, however, that ground
water at the 903 Pad test site flows in two directions: northeast toward the South Walnut Creek
Basin, and southeast toward the Woman Creek Basin. This bidirectional flow is a result of the
903 Pad Area being located on a potentiometric crest. Therefore, use of the South Walnut
Creek Basin facility to treat any ground water that may be recovered at the 903 Pad IM/IRA test
site does not raise the issue of interbasin transfer of contaminated water. The. South Walnut
Creek Basin Treatment System is centrally located with respect to all of the proposed. pilot test
locations and has spare processing capacity. It is also proposed that ground water and
condensate generated from pilot testing at the 903 Pad be transported to the South Walnut Creek
Basin Treatment System by tank tnlck. Truck transport has been selected over pipeline transport
because of the relatively short duration of the pilot study and the uncertainties associated with
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production of ground water, if any. Ground-water production and chemistry dati ejected
during the pilot study phase of the IM/IRA will allow consideration of the use of other RFP
treatment systems for post-pilot study operation. These data will also be used to determine the
means of contaminated water transport (tank tIUck versus pipeline) to the designated treatment
facility during post-pilot study operation. Candidate RFP water treatment. systems that may
potentially support the Subsurface IMIIRA are discussed in Section 4.6.
It is estimated that approximately 1 gallon per minute (gpm) of ground water will be produced
in dewatering the 903 Pad test area alluvium. The volume of condensate produced will be
minimal. Ground water and condensate recovered during pilot testing will be allowed to
accumulate in an insulated and heated holding tank located at the test site. The contents of the
. tank will be transported by tank tIUck to the South Walnut Creek Basin Treatment Facility for
removal ofcont~minapts.Assuming the use of a 5,OOO-gallon holding tank and a S,OOO-gallon
tank tnick, one trip will be required every 3 days to accommodate a 1 gpm recovery rate. The
one-way transportation distance from the 903 Pad test site to the South Walnut Creek Basin
treatment facility is less than one-half mile via Central Avenue and the treatment facility access
road.
As discussed above, several incidental wastes would be generated during installation
operation of the proposed subsurface action at the 903 Pad. These wastes include: personnel
protective equipment, drill cuttings (Le., contaminated soil from well installation), vapor
extraction treatment residuals including spem HEPA filtration media and GAC; ground-water
treatment residuals including sludge and GAC; and recovered free-phase solvents
(Section 4.3.3.2). All incidental wastes from installation and operation are expected to be
similar to those already generated at RFP and will constitute a small fraction of the wastes
already processed for storage or disposal by the site. These solid wastes will be characterized
and handled according to RFP waste management operating procedures (EG&G, 1991h).
4.3.2.2 ObservationallStl'P.Sllmlined Approach Considerations
In accordance with EPA Observational/Streamlined Approach guidance, this section identifies
potential deviations from the expected conditions at the 903 Pad test site, mechani!m1s to identifY
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the deviations, and contingency plans that respond to the deviations. Deviations from expected
conditions are a result of incorrect assumptions with respect to sire-specific hydrogeology and
nature of contamination based on limited site characterization data. As mentioned in
Section 4.3.1.2, the expected conditions at the 903 Pad are based on qualitative data regarding
the site history and quantitative data derived from investigative activities performed near the
proposed test site, but not actually within the test area. In light of the uncertainties associated
with extrapolation of site conditions from these data, the development of contingencies to
respond to unexpected conditions within the test site is a critical component of the IMIIRA.
Table 4-1 presents reasonable deviations that might be encountered during implementation of the
proposed vapor extraction system at the 903 Pad test site. The table also indicates the
mechanisms that will be used to identify the potential deviations and presents contingency plans
that will be implemented in the event that a deviation actually occurs. The remainder of this
Section provides a detailed explanation of Table 4-1.
Free-phase solvent contamination at 903 Pad is not expected to have penetrated more than 30
feet into the claystone bedrock. This expected condition is based on a review of existing RI
data. The potential deviation would be the presence of free-phase contamination at depths
greater than 30 feet into bedrock. The method for detecting the deviation is visual inspection
of soil samples recovered during drilling of the bedrock vapor extraction well boreholes. The
contingency involves continuing the boring to the lower limit of observed contamination and
installing a well screen to the total depth of the boring. However, the boring will not extend
beyond 100 feet total depth.
Recoverable ground water in the claystone bedrock at the 903 Pad test site is not expected.
Borings advanced through the claystone near the 903 Pad during previous investigative efforts
recovered only dry to moist soil samples. It is possible, however, that the vacuum induced by
the vapor recovery wells will result in the accumulation of residual soil moisture in the well.
This potential deviation from expected conditions will be directly measured using an electronic
water level indicator. The contingency will involve retrofitting the vapor recovery wells with
ground-water extraction pumps. Ground water extracted during pilot testing will be transported .
to the South Walnut Creek Basin Treatment System as discussed above.
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Table 4-1
ObservationaVStrP.amlined Approach
In Situ Vawum-Enhanced Vapor Extraction at 903 Pad (lHSS 112)
I I I M...-h......... to ! I
Ezpeeted Cmutitioas PoteatiaI Deriatious Identify DenatioDs CoIIIiDgmcy
RI dara providea lllflicieut RI data doea DOt provide ADalyaia aDd ~of Plan aDd coaduct lOiI vapor
information to place vapor lllflicieut information to place RI data. IIItYey to provide additional
extractiOD aDd iDjecIiOD wella. vapor extraction aDd injeclioD information.
wella.
Limited VOC CODWDiDatiOD in VOC CODtaIIIiDation exteDdI deep Dinc:t obaervatiOD (i.e., Advaace boriDa to maximum
bedrock. into bedrock. ItaiDiDg aDd odor) aDd dep1b of CODtaIIIiDation (limited to
meuuremeat (i.e. OVA) of 100 feet).
IOiJ borebole1l8111p1ea
No recoverable ground -- in Recovenble ground water in Dinc:t ~ R.eIIOfit exi.IIiq vapor extractiOD
bedrock. bedrock. aad iDjecIioD wella wid! ground-
W8ler pump.
No &-pbue IOIveutI in F~ IOlveut8 are preaeut in Dinc:t ob-uon. ImtaJ1 pbue leparation UDit.
recovered ground water. recovered ground water.
R.adiollllC~A,.,iftllltlld R.adioauc1ide-contAnUftllltIId ADaly8iI of IpCIIIt HEP A filter R.aiD HEPA filters.
parliculatea DOt preaeut in vapor parliculatea preaeut in vapor media.
1IreaID. 1IreaID.
OAC adaorptioD is COlt effective OAC ad8orptiOD is DOt a COlt SampIiDg aad aaalylil of a. Jmra11 clem air iDtaIte
vapor treatmeut techDo1ogy effective vapor treaUDctI1 vapor 1IreaID. up- of vaeuum pump to
(baed OD VOC c:oaceatntion). techDo1ogy due to hiBh Voc reduce VOC CODCeUEratioaa.
coDCelllra1ioDa.
b. Bvaluate feuibility of vapor
tre&tmeut by d!erma1 oxidatioD
or c:oadeuatiOD.
All om C(IIIt8nU"o- of All om C(IIIt8,.,i...- of COII&:erD SampIiDg aad aaa1yIiI of . u.. !DOlt appropriate R.FP
CODcel'D preaeut in recovered DOt preaeut in recovered grouad recovered ground -- aDd treatmeut I)'IteIII to proc:ea
grouad-water aDd coad~ water aad coadeaate. coadeD8ate. recovered grouad water aod
(VOCI; radiODUClidea, iDc1udiDg eoJIII--.
Pu, Am, aDd U; and metalI).
Orouad-water recovery - Orouad-water recovery - Dinc:t ob....alion. U.. - appropriate R.FP
S 1 gpm. »lgpm. tn8IIDeD1l)'lIem(l) to proceu
recovered ground water, aad
-- pipe1iDe VI. taDIt tnlCk
tnIIIpOrt.
VOC coDCeDtr81ioD in extracted VOC coneeutratiOD in e:aracted Direct mealllremeot. a. Abaadon propOlled test lite.
vapors C!; 1 ppm (field vapors < 1 ppm (field
1MUIlmDeut) meuumneatI) b. A-. feuibility of
CODIideriDg aD alteroalive test
lite.
PoIt-pilot operation of ill mu PoIt-pilot operatiOD of iIIliIu ADIiyIiI of pilot teat dara PoIt-pilot operatioD DOt
vacuum-eohaDced vapor vacuuni-eobaoced vapor wid! rapect to evaluation conducted at test lite.
e:araction I)'Item is deemed to extraction I)'Item is DOt d-- criteria (Section 4.3.2).
be beneficial. to be beMficial.
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DNAPLs are not expected to accumulate in the alluvial or bedrock wells. There is, however,
uncertainty in this expectation, and it is conceivable that accumulation of DNAPLs in the wells
. .
may occur. The bedrock wells, for example, may receive DNAPLs from pools perched on the
bedrock. The presence of free-phase liquid contaminants in ground-water extraction wells will
be determined by visual inspection of the recovered ground water for an immiscible phase. The
contingency to respond to this deviation will involve retrofitting the ground-water storage system
with a liquid-phase separation unit installed between the extraction wells and the storage tank.
Although not expected, during vapor extraction system startup it is conceivable that radionuclide-
contaminated particulates resulting from disturbed soils along the length of the extraction wells
may be entrained into the vapor stream. HEPA filters are included in the vapor treatment.
process for particulate removal. Filtration protects the GAC against fouling and ensures that
radionuclides are not discharged from the system. Spent HEP A filter media will be sampled and
analyzed for the presence of radionuclides. If after several weeks of system operation, analysis
of spent filtration media establishes that radionuclide-contaminated particles are not present in
the vapor stream, HEPA filtration will be removed from the process, allowing a greater vacuum
to be pulled on the subsurface. If analysis indicates the presence of radionuclides, however,
HEPA filtration will be retained. . In either event, real-time radiation monitoring will be
conducted.
It is expected that GAC adsorption will provide cost-effective recovery of vapor-phase VOCs.
This is strictly a function the VOC mass recovery rate observed during the pilot study. Based
on the mass recovery rate, the feasibility of stand-alone GAC adsorption will be compared to
condensation and thermal oxidation. Condensation involves chilling the vapor stream to liquify
VOCs. The liquid stream is recovered and sent off site for recycling. Residual VOCs in the
vapor stream are removed by GAC adsorption. Tbermal oxidation involves immediate
destruction of VOCs extracted from the subsurface.
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4.3.3 Evaluation of Remedial Approach
4.3.3.1 Effectiveness
The proposed subsurface action at the 903 Pad test site provides an alternative to excavation and
disposal of VOC-contaminated soils. VOCs. recovered by the GAC adsorption units are
subsequently thermally desorbed and destroyed at an off-site GAC regeneIation facility. During
the regeneration process, a small quantity of ash may be generated which requires land disposal.
The action is also expected to generate sludge from treatment of contaminllten ground water and
condensate at the South Walnut Creek Basin Surface Water Treatment Facility. This sludge may
require land disposal and/or on-site storage as a hazardous mixed waste. Likewise, spent HEPA
fIltration media may also require land disposal or on-site storage as a hazardous mixed waste.
However, generation of spent HEPA filtration media is expected to be minima] and only during
the initial weeks of operation. Management of treatment system residuals according to RFP
standard opeIating procedures will eliminate exposure risks.
Vapor-phase recovery is an efficient method for reducing contaminant mobility and volume. By
addressing free-phase source contamination, a reduction in the amount of contaminllnt available
to dissolve into the ground water ultimately results in reduction of the volume of contaminllted
ground water migrating from the test areas. A reduction in toxicity is also achieved by recovery
and destruction of VOCs. Vapor-phase recovery may be implemented using relatively simple,
cost effective and reliable equipment. As discussed in Section 3, there are no ARARs for
remediation of subsurface soils. ARARs do exist, however, for treatment and discharge of any
ground water recovered during the IRA. Proposed use of the. South Walnut Creek Basin Surface
. Water Treatment Facility (EG&g, 1991f) is expected to achieve ARARs associated with ~und-
water treatment.
4.3.3.2 Implementabillty
Vacuum-enhanced vapor extraction is a technically feasible remedial action for om. The
simplicity of design, fabrication using commonly available materials, ease of maintenance and
potential for cost-effective operation make in situ vacuum-enhanced vapor extraction an attractive
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remedial technology. Vapor extraction is a proven technology that has been successfully applied .
at many sites. In unconsolidated formations, vapor extraction has been successfully implemented
in both coarse and fine-grained material. The alluvial material at the proposed test sites is
expected to be coarse grained and consist of sand, gravel and lesser amounts of silt and clay.
The bedrock material at the proposed test sites is consolidated and its permeability to air flow
has not been quantified. Both sandstone and claystone bedrock is expected to have relatively
low permeabilities when compared with the alluvium; however, bedrock permeability is expected
to be high enough to permit a measurable vapor flow rate. Performance of the proposed systems
will be demonstrated by calculating contaminant mass recovery rates based on vapor flows and
contaminant concentrations. Regeneration services for the GAC adsoIption units are readily
available, and special labor skills are not necessary to construct and operate the vapor extraction.
and treatment equipment.
Factors limiting the success of in situ vacuum-enhanced vapor extraction at the 903 Pad include
low formation permeability and amount of residual free-phase contamination in the subsurface.
A review of existing data suggest that low formation permeability will not be a limiting factor
in the alluvium, however, .bedrock permeability may be low. Confirmation of source area
locations will be critical to the successful implementation of this technology as an interim or
fmal action. Should additional data become available during the Phase IT RI suggesting a more
promising test area, interim remedial efforts may be redirected to another site.
As noted in Section 4.2, CERCLA evaluation criteria include assessment of a proposed remedial
action with respect to public acceptance. SevetaI aspects of the proposed Plan should receive
favorable public acceptance. For example, the information collected during the IM/IRA could
expedite fInal remedial efforts at om. Moreover, conduct of the IM/IRA could achieve some
degree of VOC source removal and subsequent destruction of recovered VOCs. Potential
removal of subsurface VOC contamination without the need to excavate should also be received
favorably. In addition, the proposed vacuum-enhanCed vapor extraction actions pose a very low
probability of spreading subsurface contamination. The risk of spreading VOC contamination
is small because the soils affected are under negative pressure and the air sweep induced by the
vacuum is collected at the extraction wells. The risk of spreading subsurface radionuclide
contamination is very low because they are non-volatile. Some public concern may result over
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the proposed use of air injection to enhance VOC recovery because of the increased risk of
spreading VOC contamination. Proper design of the injection and extraction systems to ensure
capture of all injected air minimi7.e8 this risk. Another favorable aspect of the Subsurface
IMIIRA is the use of the ObseIVatiOnallStreamIined Approach in planning and implementing the
IRA in order to maximize data quality and quantity. Finally, use of existing RFP water
treatment facilities to treat ground water and condensate should also be viewed favorably.
No permits are required for implementation of the Subsurface IMIIRA. All materials needed to
constmct and operate the proposed interim remedial system are commonly available. During
the installation of extraction wells, approximately 6 cubic yards of drill cuttings (waste soil) will
. be generated. This material may be classified as hazardous mixed waste. Extracted ground
water will be treated at existing RFP facilities. Therefore, administrative feasibility of the
proposed interim action appears high.
4.3.3.3 Environmentallmpact
Commitment of Resources
The vapor extraction system proposed for the Subsurface IMJIRA at the 903 Pad will not
require construction of additional treatment faci1itiest but will require commitment of resomces
(equipment and material) to install approximately six extraction wells with component HEPA
filters, GAC units, water collection systems, and monitoring devices.
Treatment of contaminated subsurface water from om will result in an incremental increase in
site pickup and deliveries of spent GAC units and replacement units and chemicals for the
pretreatment of water. If the pilot testing phase is successful and the vapor extraction system
. .
is expected to operate for a year or more, deliveries will be spread out over the course of the
year and will be handled by one of the existing Plant chemical suppliers. The very small
number of shipments involved for both the GAC units and the chemical treatment system will
result in an insignificant impact to human health.
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Off-site transportation impacts associated with the shipment of dewatering sludge to a mixed
waste disposal site, will be very low as determined in DOE (1990b). Relatively low
concentrations of contaminants, the physical fonn of the waste, disposal site acceptance criteria,
and compliance with DOT packaging and transport requirements all contribute to very low health
risks from incident-free shipment and accident events.
Traus{)Ortation Impacts
The proposed subsurface water collection system involves transportation activities during
installation and routine operations. Installation transportation activities will primarily involve
the movement of equipment for drilling, well installation, material deliveries for installation, and
potential off-site disposal of excavated soils resulting from drilling. Routine operations will
. require the transfer of collected water to the South Walnut Creek Basin Treatnlent System,
periodic inspection and maintenance of the pumps and collection systems, and occasional off-site
shipment of dewatering sludge to a low-level mixed waste disposal site. Potential health effects
from fugitive dust during installation will have negligible impacts, as discussed earlier in this
section. Given the limited extent of transportation activities associated with the collection system
and the health effect estimates presented in Appendix E, transportation health effects are
predicted to be very small. Additional discussion details are provided in Appendix E.
Wetlands
Wetlands areas have been identified near the 903 Pad proposed action site. These wetlands are
fed by several seeps that are located in two areas: approximately 1,000 feet to the southeast of
the site, and approximately 1,200 feet to the north of the site. These seeps typically have flows
that fluctuate seasonally and normally remain below 2 gpm. Many of these seeps dry up during
periods of low recharge.
Dewatering activities at the 903 Pad are predicted to result in a water extraction rate of 1 gpm
or less. Inasmuch as there are no technologies for effectively conducting vapor extraction when
ground water is present, removal or collection of the water is a necessity. Ground-water
extraction is not expected to have a significant impact on nearby wetlands because of the small
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expected flow and limited duration (3 years or less). However, it is known that there is
considerable variation in the water table elevations within om, near surface water-bearing units.
. .
Therefore, it is possible that dewatering rates may be different than predicted and may have an
indirect effect on wetlands. . The total wetlands area that could be affected by the proposed 903
Pad . action is estimated to be less than one-fortieth of an acre.. Suitable habitat exists in the
surrounding area to accommodate any temporary wildlife displacement. At the conclusion of
the IMJIRA, ground-water flow will return to its previous levels, and any temporary wetlands
impacts will be naturally mitigated.
Water treatment alternativeS are considered in Section 4.6. If a treatment alternative is selected,
its purpose would be to remove CODtam;nants from the water that might reach a drinking water
. source. While it would be possible to reintroduce the treated water at the collection point or at
the seeps, thus preserving the wetland areas, such a program would simply reintroduce clean
water into a local ground-water system that is contam;nated. This would contribute to an
increased potentiometric surface and this an increased potential for CODtam;n=lnt migration.
Cumulative Imuacts
Installation activities will result in increased vehicular t'~'Jnc, engine emissions, and the number
of workers. The number of personnel required for the project will be a small increase to the
assumed yearly additional constIUction loading.
It is estimated that two workers will be involved in routine operation and maintenance of the
vapor extraction system at the 903 Pad. The same workers will also be able to operate and
maintain vapor extraction system systems at Mound and the East Trenches. This will have
negligible impact on the number of Plant personnel. In routine operations, these workers will
not be exposed to any levels of chemicals or waste stream pollutants that would restrict them
from other .assignments at the RFP. .
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4.4
VACUUM-ENHANCED VAPOR RECOVERY AT MOUND cmss No. 113)
This section presents a detailed description of the proposed action at the Mound Area. This
discussion focuses on the expected test site conditions, proposed treatment systems, and
ObselVationa1/Streamlined Approach considerations with respect to deviations in expected test
site conditions.
4.4.1 Test Site Description
4.4.1.1 Test Site Selection Rationale
The rationale and criteria used for selection of the SubsurfaCe IMIIRA test sites is discussed in
Section 4.3.1.1. mss No. 113, a former drom storage location at the Mound Area, is the
second site proposed for pilot testing in situ vacuum-enhanced vapor extraction. Its location
within OU2 is shown in Figure 2-2. IHSS No. 113 satisfies all three test site selection criteria
as discussed below.
m:SS No. 113 was used to store an estimated 1,405 drums containing primarily depleted
uranium- and beryllium-contaminated lathe coolant (a mixture of 70 percent hydraulic oil and
30 percent carbon tetrachloride). Records do not indicate that the drums were buried (Calkin!:,
1970). Some drums also contained Perclene (Smith, 1975). Perclene was a brand name of
tetrachloroethylene (Sax and Lewis, 1987). Initial remediation of this site was accomplished in
May 1970. It is not clear from the literature whether fluid was obselVed to have leaked from
these drums before or during cleanup. Howeve~, a release of free-phase chlorinated
hydrocarbons is inferred from the chemistry of water samples collected from a monitoring well
adjacent and hydraulically downgradient of mss No. 113 (Well No. 0174 [Figure 2-12]).
Water samples collected in May 1987 and 1989 contained 528.0 mglt and 45.0 mglt of PeE,
. .
respectively. The solubility of PCE at standard temperature and pressure is approximately
160 mg/t suggesting the presence of free-phase PCE near mss No. 113. The potential for
residual free-phase chlorinated solvents at this site coupled with a lack of evidence for buried
drums makes this site suitable for the Subsurface IMIIRA.
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Soil sampling conducted at mss No. 113 after the May 1970 clean-up indicated 0.8 to 112.5 .
disintegrations per minute per gram (dnm/g) (0.4 to 51 pCilg) activity. This contamination is
thought to have been transported by wind from the 903 Pad Drum Storage Site. Nothing has
been found in the literature to suggest the presence of metallic nuclear material buried at mss
No. 113.
4.4.1.2 Expected Conditions
No site-specific hydrogeologic or chemical information is currently available for the area within
mss No. 113 boundaries. However, seVeral exploratory boreholes were drilled and monitoring
wells constructed near the test site. These data were used to coDStIUct a concepual model of
the site hydrogeology and contaminant type and distribution. A geologic log of the borehole
drilled for monitoring well 2087 (approximately 20 feet east ofmSS No. 113), which is typical
of the mss No. 113 area, is presented in Appendix D. An idP.a1i7ed block diagram of the mss
No. 113 test area is presented in Figure 4-8. The diagram illustrates the hydrogeology and
contaminant distribution expected to exist within 50 feet of the ground surface.
Sand and gravel alluvium extends to approximately 10 feet below ground surface and overlies
claystone bedrock that may contain isolated or interconnected fractures. The alluvium is
expected to be dry but may contain a small amount of seasonal ground water perched on the
underlying claystone bedrock. The bedrock is I: xpected to contain recoverable ground water.
It is expected that PCB comprises the majority of the VOC contamination in the ms$ No. 113
area with lesser amounts of caIbon tetrachloride. A sample of ground water collected from
monitoring well 0174 (Figure 2-12), located adjacent to mss No. 113, contained PCB af a
concentration that exceeded its solubility limit. The well screen crosses the alluviallbedrock
boundary suggesting that free-phase PCB released at mss No. 113 infiltrated the alluvium
coming to rest on the claystone bedrock. It is likely that a small amount of free-phase PCB or
. .
an emulsion of PCB and seasonal ground water flowed towards and entered Well 0174. The
conceptual diagram shows the residual DNAPL in the alluvium and pools of DNAPL perched
on the claystone bedrock with some infiltration of DNAPL along bedrock fractures. A review
of existing monitoring well as-built diagrams and ground-water chemistry (Rockwell, 1987a)
with respect to the presence of dissolved or residual free-phase chlorinated solvents in the
SUBSURFACE INTEIIIM REMBDIAL ACI'JON PlAN
ROCKY PLATS PLUn'. OOLDEN, COLORADO
cgq\u..inp\fmaJ4'-4..J112.1Cp
FINAL
ScpCaDber 1992
-------
I"''''
~ ~ ~ '" '"
~. ~ ~ '" '" '" '" '" '"
I > '" '"
/iii/I;) '" '" '" '"
[~i '" '" '"
0 ~ EAST
~ 8 i
I b
~~
8>
sa 10'
~~
~
20'
POSSIBLE
DNAPL POOL
~
.. FRACTURED
CLAYSTONE
30'
40'
it
f"-
~~
. A1l.lMUM UKB.Y CONTAINS
SEASONAL GROUND WATER
PERCHED ON BEDROCK
.. CLAYSTONE BEDROCK IS
EXPECTED TO BE DRY
U.S. DEPARTMENT OF ENERGY
. Rocky flats Plant
Golden, Colorado
~
RESIDUAL DNAPL
(DENSE NON-AQUEOUS
PHASE UQUID)
~::~3~54
1-F
A1l.U'ML SAND AND GRAVEL
FRAcnJRED CLAYSTONE
BEDROCK
IDEAUZED CROSS-SECTION
MOUND AREA (lHSS 113)
FIGURE
-------
claystone bedrock near IHSS No. 113 was inconclusive. It is important to note that the prese!1ce
of pools of DNAPL perched on the bedrock is also uncertain and may never be conclusively
determined. However, the presence of very high concentIations of PCB in a monitoring well
adjacent to IHSS No. 113, and in light of the inventory of drum numbers and contents stored
at IHSS No. 113, it is reasonable to infer the presence of residual free-phase chlorinated solvents
in the vadose zone. This material may be mobilized during periods of high precipitation when
ground water may be perched on the claystone bedrock.
4.4.2 Remedial ApDroach .
..4.2.1 Proposed Action Based On Expected Conditions
. This section provides a detailed description of the interim remedial action proposed for
implementation at the Mound Area test site (IHSS No. 113). The proposed action is based on
the idealized conceptual hydrogeologic and conrnminant distribution model described in Section
4.4.1.2, and involves:
.
. In siru vacuum-enhanced vapor extraction for the alluvial material.
.
In situ vacuum-enhanced vapor extraction in the upper portion of the underlying
claystone bedrock. .
Vapor Extraction
Figure 4-9 illustrates the configuration of the vapor recovery system. At mss No. 113, two
vapor extraction wells will be installed in both the alluvium and the upper portion of the
claystone bedrock and manifolded to one or more vacuum pump(s). The precise location of the
vapor recovery wells has no~ been determined as there currently is no CODrnminant concentration.
data available for . the area within IHSS No. 113 boundaries. . A Phase n RI is currently in
progress at om and includes the advancement of soil borings and the coDStIUction of ground-
water monitoring wells within IHSS No. 113 boundaries. Prior to implementation of this portion
of. the IM/IRA, a review of available RI data will be conducted with respect to identified
locations of residual chlorinated hydrocarbons. In order to prevent significant short circuiting
SUBSURFACE JNI'ERIM REMEDIAL AcnON PlAN
ROCKY PLATS PLANI', GOLDEN, COLORADO
ecctc\D-inplfillaM\8004 JII2.1Cp
FINAL
ScpI=bcr 1992
-------
i~~
l~~
tiillJ
{~i 0
';.81
.fib
}I!~ ... fAST
a> 10'
~~
e
20' ....
... .....
~ 30' -1 '" ...
CROSS SECTION
EXACT WB.L PtACEUENT 0 1&1 0
WIU. BE BASED ON
RIRIHCOIIING RDIEDW. 0 ED 0
tMSIIGA110N IMTA
.~':~k:~
. ... ~"
'rr
~
AU.lMAL SAND AND GRAva.
FRAcnJRED CLAYSTONE
BEDROCK
IHSS 113
Will SCREEN
RESIDUAL DNAPL
(DENSE NON-AQUEOUS
PHASE UQUID)
~ DEEP AIR INJECTION WEll.
o DEEP VAPOR £XlRACT10N Will
~ SHAU.OW AIR I~EcnON W~
o SHALLOW VAPOR EXTRACT10N WELL
... AIR FLOW
NOlE:
SURfACE TOPOGRAPHY IS
IRREGULAR
ii
t-
:::!
PLAN VIEW
U.S. DEPARTt.4ENT OF' ENERGY
Rocky flat Plant
Golden. Colorado
SCHEt.4A TIC
PROPOSED VAPOR EXTRATION SYSTEt.4
t.40UND AREA (IHSS 113)
FIGURE
-------
of atmospheric air to the vaPor extraction wells, the upper 6 feet of the well will be constructed
of blank casing. . Should contamination be observed during drilling in the upper 5 feet of soils,
the well screen will extend across shallow contaminated soils, but no less than 2 feet below the
sunace. In this case, an impermeable cover will be installed over the ground surface within 10
feet of the vapor extraction wells.
Interim remedial efforts in the alluvium and bedrock will be isolated from each other in order
to prevent croSS-CODtamination between the two distinct formations. Bedrock wells will be
isolated from the alluvium by the installation of steel surface casing set into the bedrock.
Alluvial and bedrock well construction schematics are provided in Figure 4-5. One air injection
well will be installed in both the bedrock and alluvium and will be located between the vapor
. extraction wells. These wells will be used to inject ambient and heated air into the formations
to evaluate any enhancement to VOC recovery due to the additional flow and heat. Ambient and
warm air will. be injected at a rate equal to one-half of the combined extraction rate. This is to
insure that injected air does not further disperse vapor phase contaminants in the vadose zone.
Under ideal conditions of isotropy and homogeneity of the alluvial soils or bedrock, air flow
lines can be expected to form a closed loop between the injection and extraction wells given
reasonably close well spacing « 25 feet). Radial pressure distribution equations (Johnson et.
al, 1989) will be used during Test Plan development to insure that negative pressures are
maintained at the boundary of the test area. Static pl'e$sure monitoring wells will be installed
at various distances from the well array to verify capture and to determine the area of influence
of the vapor extraction system.
The conceptual hydrogeologic model illustrated in Figure 4-8 shows some limited penetration
of DNAPL into bedrock fractures. The lack of conclusive evidence of contaminant migration
into bedrock suggests the need for a conservative approach to bedrock remedial efforts. For this
reason, it is proposed to install vapor recovery wells to a maximum of 30 feet into bedrock.
Dynamic penormance and effectiveness of the in situ vapor extraction system at mss No. 113
will be assessed as described in Section 4.3.2.1.
SUBStJRFACE INTERIM REMEDIAL AcrlON PLAN
aoccy PLATS PLANT, GOLDEN, COLORADO
CI&a\u-inp\fia8l4'-4 fl.1Cp
FINAL
ScpIaDbcr 1992
-------
The proposed test site selection was based on qualitative data from the proposed test site and .
conditions extrapolated from quantitative data collected near the proposed test site. Should the
proposed test site prove inadequate, an alternative test site will be selected. The most likely
reason for poor site conditions is the absence of residual free-phase DNAPL. A preliminary
threshold for determining success will be concentrations of hydrocarbon compounds recovered
in the soil vapor equal to 1 ppm as measured with a portable photoionization detector calibrated
for the major contaminant expected at the test site. The test will be conducted for a minimum
of 7 days before abandonment and new site selection. If the recovered vapor contains
hydrocarbon concentrations equal to or greater than 1 ppm, the test duration will be decided
while the test is in progress. In any case, test duration should not exceed three months.
Vaoor Treatment
A discussion of the system proposed to treat vapors extracted from the subsurface at the mss
No. 113 test site is presented in Section 4.3.2.1.
4.4.2.2 ObservationallSt("f!amlined Approach Considerations
A summary of the expected conditions, potential deviations and contingencies relevant to the
proposed action at Mound is presented in Table 4-2. Many of the items presented in Table 4-2
are identical for each proposed om test site. Therefore, this section will address only those
items that are unique to the Mound test site. The reader is referred to section 4.3..2.2 for a
detailed discussion of the items common to all om test sites.
The Mound test site is unique in that no recoverable ground water is expected in either the
alluvium or bedrock. The potential deviation would be the presence of a saturated thickness
greater than 3 feet in the alluvium and! or an accumulation of ground water in the bedrock vapor
extraction wells. This potential deviation from expected conditions would be identified by direct
measurement with an electronic water level indicator. In this event, the existing wells would be
retrofitted with ground-water recovery pumps. Ground water recovered during pilot testing
would be transported by tank truck to the South Walnut Creek Basin Surface Water Treatment
Facility for treatment.
SUBSURFACE INTERIM REMEDIAL ACTION PLAN
ROCKY FLATS PLANT, GOLDEN, COLORADO
cgqlu-inp\fIll8l4\sC104 .J'I2.11Cp
FINAL
ScptaDbcr 1992
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Table 4-2
ObservationallStl'@2m1ined Approach
In Situ Vacuum-Enhanced Vapor Extraction at Mound (lHSS No. 113)
McchaJIisms to
Expected Conditions Potential Deviations Identify Deviations Contingency
RI data provides sufficient RI data does not provide Analy5is and intelpr'etation of Plan and conduct soil vapor
information to place vapor sufficient information to place RI data. sUJYey to provide additional
extraction and injection wells. vapor extraction and injection information.
wells.
VOC Contamination VOC contamination extends Direct observation (i.e., staining Advance boring to lower limit of
limited to uppper 30 feet of deep into bedrock and odor) and measurement contamination or 100 feet total
daystone becIrodt. (i.e. OVA) of soil boIehole depth.
samples.
No recoverable alluvial or R=overable alluvial and/or Direct measurement. Retrofit existing vapor
bedrock ground water. bedrock ground Water, extraction and injection wells
with ground-water pumps.
No bee-phase somnts in Free-phase somnts ue Direct obseJvation. Install phase separation unit.
rccoveted ground water pRSCDt in rccoveted ground
(if any). water (if any).
Radionudi~taminated Radionudide-contaminated Analy5is of 5pCnt HEPA filter Retain HEPA filters.
particulates not present in particulates present in vapor media.
vapor stream. stream.
GAC adsorption is cost GAC adsorption is not a cost Sampling and analysis of vapor a. InstaU clean air intake
effective vapor treatment effective vapor treatment stream. upstream of vacuum pump to
technology (based on VOC technology due to high VOC reduce VOC concentrations.
concentration). concentrations.
b. Evaluate feasibility of vapor
treatment by thermal
oxidation or condensation.
VOC concentration in VOC concentration in Direct measurement. a. Abandon proposed test site.
extracted vapors C!: 1 ppm extracted vapors < 1 ppm
(field measurement) (field measurements) b. Assess feasibility of
considering an alternative
test site.
Post-pilot operation of in IiIu Post-pilot operation of in IiIu Analysis of pilot test data with Post-pilot operation not
vacuum-enhanced vapor vacuum-enbanced vapor respect to evaluation criteria conducted at test site.
extraction system is deemed extraction system is not (Section 4.3.2).
to be bencficial. deemed to be beneficial.
SUBSURFACE INTERIM REMBDIAL AcrlON ~
ROCKY FlATS l'LANT, GOWEN, COLORADO
cga,\u-inp\fiaaJ4'-4.J112.1Cp
PINAL
ScpIaaber 1992
-------
4.4.3 Evaluation of Remedial Apnroach
4.4.3.1 Effectiveness
Evaluation of the proposed IRA at the Mound Area with respect to CERCLA effectiveness
criteria is essentially the same as the effectiveness evaluation presented in Section 4.3.3.1. One
difference, however, is the elimination of treatment system sludge production and associated land
disposal since ground water is not expected to be recovered at the Mound Area test site.
4.4.3.2 Implementability
Evaluation of the proposed interim remedial action at the Mound Area with respect to CERCLA
. implementation criteria is the same as the implementability evaluation presented in
Section 4.3.3.2.
4.4.3.3 Environmental Impact
Commitment of Resources
Commitment of resources for the vapor extraction system proposed for the Subsurface IMIIRA
at Mound will be virtually identical to that of the 903 Pad described ill Section 4.3.3.3. This
level of commitment will be low, and will not have a significant impact on RFP operations.
Transportation Impacts
Transportation impacts for .the Mound vapor extraction system are virtually identical to those
described for the 903 Pad in Section 4.3.3.3.
Wetlands
Wetlands areas have been identified near the Mound proposed action site. These wetlands may
be fed by surface seeJ> flow and are located in two areas: approximately 1,000 feet to the north
SUBSURFACE INT1!RIM Rl!MBDIAL AcrION PLAN
ROCKY PLATS PLANT, GOLDEN, COLORADO
CC&alu-inplfilW4\80c4 .JII2.1Cp
FINAL
Scpccmbcr 1992
-------
of the site (seeps), and approximately 1,000 feet to the northwest of the site (seeps and South
Walnut Creek). These seeps typically have flows that fluctuate seasonally and normally remain
below 2 gpm. Many of these seeps dry up during periods of low recharge. South Walnut Creek
flows range from 5 gpm to 60 gpm.
Dewatering activities at the Mound are not expected to result in any significant water collection;
therefore, DO impact on nearby wetlands is expected. However, it is known that there is
considerable variation in the water table elevations in near surface water bearing units at om.
Consequently, it is possible that dewatering may be necessary at Mound and this may have an
indirect effect on nearby wetlands. The total wetlands area that could be affected by the
proposed Mound action is estimated to be less than one-fortieth of an acre. Suitable habitat
exists in the surrounding area to accommodate any unlikely wildlife displacement. At the
conclusion of the IMIIRA, ground-water flow, if affected, will return to its previous levels and
any temporary wetlands impacts will be naturally mitigated.
Water treatment alternatives are the same as those described for 903 Pad in Section 4.3.3.3.
Cumulative Imoacts
Cumulative impacts are expected to be the same as those described for the 903 Pad.
4.5
VACUUM-ENHANCED VAPOR EXTRACTION AT EAST TRENCBFS AREA
lIHSS NO. 111.1)
This section presents a detailed description of the proposed interim remedial action at" the East
Trenches Area. This discussion focuses on the expected test site conditions, proposed treatment
systems, and Observational/Streamlined Approach considerations with respect to deviations in
expected" test site ~nditions.
SUBSURFACE IN'I'I!ItIM REMEDIAL AcrtON PLAN
ROCKY PLATS PLANT, GOLDEN, COLORADO
ccAcIu-inlpIfill8l4\1cc4 "'p1Z.1Cp
PINAL
ScptaDba' 1992
-------
4.5.1 Test Site Description
4.5.1.1 Test Site Selection Rationale
The rational and criteria used for selection of the subsurface IMIIRA test sites is discussed in
Section 4.3.1.1. mss No. 111.1 (Trench T -4) burial site at the East Trenches Area, is the third
site proposed for pilot testing in situ vacuum-enhanced vapor extraction. Its location within om
is shown on Figure 2-2. mss No. 111.1 sat;isfies all three test site selection criteria as
discussed below.
A review of the literature revealed little specific information about the historical use of mss
No. 111.1. The available information describes waste disposal activities at the East Trenches
Area as a whole. To summarize, the burial trenches in this area were used between 1954 and
1968 for the disposal of sanitary sewage sludge contamin:lted with uranium and plutonium and
approximately 300 flattened empty drums CODt:lmin:ltM with uranium (Dlsley, 1983). However,
mss No. 111.1 is not expected to contain flattened drums. Figure 2-2 identifies those trenches
where drums were observed or detected by magnetometer survey.
Based on this description, one would not expect to find significant concentrations of chlorinated
solyent. However, a water sample collected in May 1988 from a monitoring well 3687
(Figure 2-13) adjacent to mss No.l11.1 contained 221.8 mglt ofTCE. The solubility ofTCE
is 1,100 mgl t at standard pressure and temperature.. The concentration of TCE in the water
sample represents a significant fraction of the TCE solubility limit suggesting the possibility of
residual free-phase TCE near mss No. 111.1.
Although the radiation content of the sewage sludge reportedly ranged from 382 pCiI g to
3,590 pCilg (Owen and Steward, 1973) there are no reports of metallic nuclear material
deliberately buried in mss No. 111.1. The only other material reportedly buried. in mss
No. 111.1 is plutonium- and uranium-contamin:lteO asphalt planking from the solar evaporation
ponds (Illsley, 1983). The potential presence of residual free-pbase TCE coupled with a lack
of buried drums and metallic nuclear material makes mss No. 111.1 a suitable test site for this .
IMIIRA.
SUBSURFACE INI'EItIM REMEDIAL AC1'ION PLAN
ROCKY PlATS PIANI'. OOLDEN, COLORADO
q&,\u-illp\liDal4'-4fl.1Cp
PINAL
SepIembcr 1992
-------
4.5.1.2 Expected Conditions
No exploratory borings have been advanced through mss No. 111.1; however, two borings
were advanced approximately 40 feet" north of the trench. Monitoring wells were constnlcted
in these boreholes (Wells 3587 and 3687) (Figures 2-13 and 2-15, respectively) and geologic,
water level,' and chemistry data are available. These data were used to construct a conceptual
model of the site hydrogeology and contaminant type and distribution. A geologic log of a
borehole advanced for monitoring well 3687 (typical of the test area) is presented :..
Appendix D. An idealized block diagram of the test area is presented as Figure 4-10. 'I
diagram illustrates the hydrogeolQgy and contaminant type and distribution within 120 feet c
the ground surface.
Sand and gravel alluvium extends to approximately 10 feet below ground surface and overlies
primarily sandstone bedrock. At Well 3687 (Figure 2-13), an 11 foot thick interval of sandy
claystone was reported directly underlying the alluvium. A fine- to medium-grained Sandstone
underlies the sandy claystone and extends to at least 75 feet below ground surface. The
sandstone is underlain by claystone which may contain isolated or interconnected fractures.
Unconimed ground water is expected to be encountered at 35 feet below ground surface in the
sandstone. Bedrock geology varies in the area immediately surrounding mss No. 111.1. Based
on geologic logs of nearby soil borings, claystone underlies the alluvium south of mss
No. 111.1 and sandstone underlies the alluvium to the west.
TCE is expected to be the primary contaminant at this test site. A sample of water collected if:
May 1988 from Monitoring Well 3687 contained 221.8 mglt, which represents 20 percent of
the TCE solubility limit. This well is screened in the sandstone bedrock. The high
concentration of TCE within 40 feet of mss No. 111.1 suggests the presence of residual free-
phase TCE in the soils and aquifer underlying this burial trench. The block diagram
(Figure 4-10) shows the downward migration of DNAPL through the unsaturated alluvium and
sandstone leaving a zone of residual free-phase solvent. Because the solvent has a specific
gravity greater than 1.0, the solvent is shown migrating downward through the saturated zone
coming to rest in structural depressions on the claystone, and migrating a short distance along
fractures in the claystone. .The presence of pools of DNAPL on the claystone is by no means
SUBSURFACB INTERIM REMEDIAL AcrION PlAN
Iloacy PLATS PLANT. GOLDEN. COLOIlADO
cs&'\u-inp\fiIIaM'-4 JI2.ocp
PINAL
ScpIaDbcr 1992
-------
t~~
!. :g ~
~~>
~;jQ
!~I
~~i
12~
a>
sa
~~
8~
~1
t-
-~
8
... ... ... "' ''' ... '''
...
... ... '" '" '" ...
... '" ... ... ",
... ... '" ...
... ... ... ...
o
~
30'
60'
90'
12 .
.. myruRE CLA'r'STONE
. ~
.
SANDSTONE BEDROCK MAY
CONTAIN CLAYEY INTERBEDS
.. CLA'r'STONE BEDROCK
IS EXPECTED TO BE DRY
U.5. DEPARTMENT OF' ENERGY
Rocky F'lats Plant
Golden, Colorado
~
.....
b::~g~f4
IT
, .
; .
..
NORTH
WATER TABLE
RESIDUAl DNAPL
(DENSE NON-AQUEOUS
PHASE UQUID)
ALlUVIAl.. SAND AND GRAve.
FRACTURED CLAYSTONE
BEDROCK
IDEAUZED CROSS-SECTION
EAST TRENCHES {lHSS 111.1 )
4-10
-------
certain. Well cemented zones within the sandstone may have stopped its migration, or the
capacity of the sediments overlying the claystone to absorb DNAPL may exceed the volume of
DNAPL released from the trench. It is important to note that residual DNAPL and/or pools of
DNAPL have not been obselVed at mss No. 111.1 or at om in general. However, it is
reasonable to infer its presence by extrapolating from nearby ground water chemistIy, physical
properties of the contaminants, and historical activities at om.
4.5.2 Remedial Approach
4.5.2.1 Proposed Action Based On Expected Conditions
The section provides a detailed description of the interim remedial action proposed for
, implementation at the'East Trenches test site (IHSS No. 111.1). The proposed action is based
on idf'.:I1i7,OO conceptual hydrogeologic and contaminant distribution model described in
Section 4.4.1.2, and involves:
.
In situ vacuum-enhanced vapor extraction for the alluvial material.
.
In situ vacuuin-enhanced vapor extraction coupled with ground-water depression
in the sandstone bedrock.
Vapor and Ground-Water Extradion
The claystone will not be addressed in this action. The depth to claystone at the test site is many
times deeper than at other proposed om test sites. Therefore, it is less likely that recoverable
contamination has penetrated to claystone. Figure 4-11 illustrates the configuration of the vapor
recovery system in cross-section and plan view.
Two vapor extraction w~lls will be installed in both the alluvium and the sandstone bedrock.
One pair of alluvial and bedrock wells will be installed on either side of the burial trench.
Because materials were buried in the trench and historical records of material type and quality
may be inacCurate, it was believed appropriate to avoid drilling through the trench itself. The
Phase n RI that is currently in progress at om includes the advancement of two soil borings
SUBSURFACE IN'l'BRIM REMEDIAL AcrJON PLAN
IlOCXY FLATS PlANT, GOLDEN, COLOIlADO
CC&C'-inp\fiaal4'-4.J112.1cp
P1NAL
ScpfaDbcr 1992
-------
~ !III ..
~Ri
~~s
~. ~ ~
f
-------
within IHSS No. 111.1. Prior to implementation of this portion of the IMJIRA, a review of
available RI data will be conducted with respect to the presence of residual DNAPL or buried
drums at this location.
Remedial efforts in the alluvium and sandstone will be isolated from each other in order to
prevent cross-contamination between the two distinct formations. Sandstone wells will be
isolated from the alluvium by the installation of steel surface casing set in sandstone. Alluvial
and sandstone well construction schematics are presented as Figure 4-5. One alluvial well will
be used for vapor extIaction and the second well installed on the opposite side of the trench will
be used as an ambient or heated air injection well to induce an air sweep under th-:. rich. Both
sandstone wells will be fitted with ground water depression pumps in order tc, =xpose any
residual DNAPL held in the sandstone by capillary forces. One sandstone well will be
manifolded to a vacuum pump. The second well installed on the opposite side of the trench will
be used to inject ambient and heated air to induce an air sweep through the test site. For
reasons discussed in Section 4.3.2.1, bedrock wells will extend sevetal feet into the claystone
bedrock. This is to allow for the collection and recovery of free...pbase DNAPL should it be
encountered at the sandstone! claystone interface.
The proposed test site selection was based on qualitative data from the proposed test site and
conditions extrapolated from quantitative data collected near the proposed test site. Should the
proposed test site prove inadequate, an alternative test site will be selected-. The most likely
reason for poor site conditions is the absence of residual free...pbase DNAPL. A preliminary
threshold for determining success will be concentrations of hydrocaIbon compounds recovered
in the soil vapor equal to 1 ppm as measured with a portable photoionization detector calibrated
for the major contaminant expected at the test site. The test will be conducted for a minimum
of seven days before abandonment and new site selection. If the recovered vapor contains
hydrocaIbon concentrations equal to or greater than 1 ppm, the test duration will be decided
while the test is in progress. In any case, test duration will not exceed three months.
SUBSURFACE IN11!RIM REMEDIAL ACTION PLAN
ROCKY' PIATS PLANT. OOLDEN. COLORADO
cc&,la-inp\fiII8M'-4 J'I2.1Cp
FINAL
ScpIaDbcr 1992
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Vapor and Ground-Water Treatment
A discussion of the systems proposed for treatment of vapors and ground water extracted from
the subsurface at the mss No. 111.1 test site are presented in Section.4.3.2.1.
4.5.2.2 ObservationallSt;rP.amlined Approach Considerations
A summary of the expected conditions, potential deviations and contingencies relevant to the
proposed action at East Trenches is presented in Table 4-3. Many of the items presented in
. Table 4-3 are identical for each proposed om test site. Therefore, this section will address
only those items which are. unique to the Mound test site. The reader is referred to Section
4.3.2.2 for a detailed discussion of the items common to all om test sites.
The EaSt Trenches test site is unique in that ground water is expected to be present in sandstone
bedrock. within 35 feet of the surface. However, available data suggest considerable variability
in bedrock geology near the test site. Therefore, a potential deviation from expected conditions
would be the presence of claystone or interbedded sandstone and claystone under the proposed
test site: This condition may result in a lack of recoverable ground water. The mechanism to
identify this deviation would include visual obseIVation of soil samples recovered during drilling
and. by establishing the presence or absence of water in the extraction wells using an electronic
water level indicator. The contingency would involve abandoning the ground water ,pumping
effort and performing a vacuum enhanced vapor recovery action similar to that proposed for the
Mound Area test site.
4.5.3 Evaluation of Remedial Approach
4.5.3.1 Effectiveness
Evaluation of the proposed interim remedial. action at the East Trenches Area with respect to
CERCLA effectiveness criteria is the same as the effectiveness evaluation presented in
Section 4.3.3.1.
SUBSURFACE INTERIM REMEDIAL ACTION PLAN
ROCKY FLATS PtAN'l'. OOLDEN, COLORADO
cc&a\u-inpllilllMlIcc4 fl.scp
FINAL
ScpIaDber 1992
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Table 4-3
ObservationallStrP.amlined Approach
In Situ Vacuum-Enhanced Vapor Extraction at East Trenches (lHSS 111.1)
Mechanisms to
Expected Conditions Potential Deviations Identify Deviations ContingencY
RI clata provides sufficient RI clata does not provide Analysis and inteIpretation of Plan and conduct soil vapor
information to place vapor sufficient information to RI clata. survey to provide additional
extraction and injection weDs. place vapor extraction and information.
injection weDs.
No recoverable alluvial Saturated thickness greater Direct measurement. Retrofit existing alluvial wells
groundwater. than 3 feet. with ground-water pumps.
No free-phase solvents in Free-phase solvents are Direct observation. Install phase sepantion unit.
recovered ground water present in recovered ground
(bedrock or alluvium). water.
Saturated sandstone No ground water within 60 Direct observation of recovered Eliminate ground-water
encountered within 60 feet of feet of the surface. soilsam~~duringmillingand depression portion of proposed
the surface. measurement of water lewl in action.
completed weD.
Radionuclide
-------
4.5.3.2 Implementability
Evaluation of the. proposed interim remedial action at the East Trenches Area with respect to
CERCLA implementation criteria is the same as the implementability evaluation presented in
Section 4.3:3.2.
4.5.3.3 Environmentallmpact
Commitment of Resources .
Commitment of resources for the East Trenches vapor extJaction system will be very low and
virtually the same as that described in Section 4.3.3.3 for the 903 Pad.
Transportation Impacts
These will be similar to the 903 Pad vapor extraction system impacts. Given the limited extent
of transportation activities associated with the collection system and the health effect estimates
presented in Appendix E, transportation health effects are predicted to be very small. Additional
discussion details are provided in Appendix E.
Wetlands'
, .
Wetlands areas have been identified near the East Trenches proposed action site. These wetlands
are associated with South Walnut Creek and Pond B-1 that are located approximately 800 feet
to the north of the site. South Walnut Creek has flows which fluctuate seasonally, ranging from
5 to 60 gpm.
Dewatering activities at the East Trenches are predicted to result in a water collection rate of
1 gpm or less. Inasmuch as there are no technologies for effectively conducting vapor extraction
when ground water is present, removal or collection of the water is a necessity. This is not
expected to have a significant impact on nearby wetlands because of the small expected flow and
the limited duration (3 years or less). However, it is known that there is considerable variation
SUBSURFACE Im'EIUM REMEDIAL AcrION PLAN
R.OCKY FLATS PLANI', GOLDEN, COLORADO
cc4&\u.inpIfiDaM\scc4 J'I2.11Cp
FINAL
SqoIombcr 1992
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in the water table elevations in near surface water bearing units at om. Therefore it is possible
that dewatering rates may be different than predicted and may have an indirect effect on
wetlands.
The total wetlands area that could be affected by the proposed East Trenches action is estimated
to be less than one-twentieth of an acre. Suitable habitat exists in the surrounding area to
accommodate any temporary wildlife displace~ent. At the conclusion of the IM/IRA, ground-
water flow will return to its previous levels, and any temporary wetlands impacts will be
naturally mitigated.
Cumulative Imoacts
Cumulative impacts of the vapor extraction system at the East Trenches will be the same as for
the 903 Pad described in Section 4.3.3.3.
4.6
DESCRIPrION OF ALTERNATIVE WATER TREATMENT FACILITIES
The Subsurface IMIIRA considers the use of existing or planned RFP water treatment facilities
for treatment of contaminated ground water and condensate associated with operation of the
proposed vapor extraction systems at the 903 Pad, Mound, and East Trenches Areas. The final
selection of the RFP treatment system(s) that will be used to support the Subsurface IMfIRA will
be based on the actual contamination observed in the recovered ground water and the results of
peIformance testing each of the treatment systems. However, for the reasons discussed in
Section 4.3.2.1, the DOE wishes to retain the South Walnut Creek Basin Surface Water
Treatment System as the preferred system at this time. Modifications to this initial strategy may
be made as part of the observational/streamlined approach (see Tables 4-1 and 4-3 regarding
ground water treatment).
SUBSURFACE INTI!RIM lU!MBJ)1AL AcrION PLAN
ROCKY PLATS PLANl', GOLDEN, COLORADO
cc"'\u-inp\fiaal4\scc4 ...JII2.1Cp
FINAL
Sc:pcrmbcr 1992
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This section describes each of the RFP treatment facilities with respect to operation, conClminant
removal capabilities, and available processing capacity. The RFP water -treatment facilities
include:
.
South Walnut Creek Basin Surface Water Treatment System.
.
881 Hillside Ground-Water Treatment System.
.
Building 231B GAC Adsorption SystemIBuilding 374 Evaporation System.
4.6.1 South Walnut Creek Basin Surface Water Treatment System
The South Walnut Creek Basin Surface Water Treatment System is being constructed as part of -
an IMIIRA at om (EG&G, 1991f). The system includes chemical precipitationlmicrofiltration
and GAC adsorption units for removal of radionuclides, metals, and VOCs from surface water.
Installation of the GAC adsorption portion of this treatment facility bas been completed, and
operation began on 13 May 1991. Installation of the chemical precipitation and microfiltration
units was completed on 24 April 1992, and system startup occurred on 27 April 1992.
The South Walnut Creek Basin Surface Water Treatment System is illustrated in Figure 4-12.
Chemical treatment involves addition of iron salts and lime to cause coagulation and flocculation
of suspended particulates present in the wastewater to produce a filterable ferric hydroxide
precipitate or floc. Since the predominant state of radionuclide and metal CODClminants in
natural waters is particulate, these inorganic contaminants will be removed through enmeshment
m the ferric hydroxide floc (EG&G, 1991f). Removal of radionuclides and metals existing in
a soluble state may also be achieved during chemical treatment by adsorption to the floc. The
- floc will be removed from the process stream by cross-flow membrane filtration. The membrane
fIlter is in a shen and tube configuration with the membrane located on the inside of the tubes.
Water is pumped through the filter tubes and water passes through the membrane (i.e.,
permeate) under the force of the process operating pressure. The filters are designed so that
clean water will pass through the membrane in a direction perpendicular to the main process
flow (i.e. cross-flow filtration). Flow not passing through the membrane will be recycled to the
concentration tank. A fraction of the recycle slurry will be bled from the process for solids
SUBSURFACE N1'BRIM REMEDIAL ACI10N PlAN
ROCKY PlATS PLANT. GOLDEN, COLORADO
C8.,\a-inp\fiaol4'-4.J112.1Cp
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ScpII:mbcr 1992
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FIGURE 4-12
South Walnut Creek Basin Chemical Preoperation Treatment System
SUBSURPACB INTERIM RBMEDIAL AcrION PLAN
ROCKY PLATS PlANT, OOLDEN, COLORADO
cc&CIu-inp\fiaaJ4'-4..J'12.ocp
PINAL
ScptaDber 1992
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removal by gravity separation and pressure filtration. The filter press cake is expected to be
, .
approximately 30 percent solids by weight, and will be stabilized with the addition of portland
cement. The cross-flow filter permeate will be neutralized by the addition of suJfuric acid and
will be further processed by GAC adsorption units for removal of VOCs as described below.
Figure 4-12 shows that the GAC Adsorption Treatment System for the South Walnut Creek
Basin surface water treatment system consists of two on-line GAC units and two on-line,
standby GAC units. Each GAC unit is 60 inches high and 87 inches in diameter and contains
2,000 pounds of GAC. The on-line units are operated in series ,(Le., lead and polishing
positions). Once the GAC in the lead unit is determined to be spent, it is taken out of service.
The GAC unit in the on-line, polishing position becomes the new lead unit and one of the on-
line, standby units is placed in the on-line, polishing position. "Rotation" of the GAC units into
the lead, polishing, and standby positions is accomplished by changing the open/closed
configuration of the process valves. Physical movement of unspent GAC units is not necessary
during this procedure. The spent GAC is repJaced with a new unit containing virgin GAC. The
newly installed unit is immediately pJaced in the on-line, standby mode. Spent GAC will be
analyzed for the presence of radionuclides and for toxicity by the EP A Toxicity Characteristic
Leaching Procedure (TCLP). Results of these analytical tests will determine if spent GAC from
this process may be regenerated or must be managed as a hazardous mixed waste. As of this
writing, the process has not yet generated spent GAC.
The South Walnut Creek Basin Surface Water Treatment System was designed to continuously
process surface water influent at a rate of 60 gpm. This flow rate corresponds to the design
flows established for the South Walnut Creek Basin IM/IRA surface water collection systems.
However, design flows are maximum anticipated surface water flows for the collection systems,
and influent flows from the South Walnut Creek Basin sources will, on the average, be
substantially less than 60 gpm. For example, GAC Adsorption System operating data for May
and June 1991, two relatively high precipitation months, indicate that on the average the South
Walnut Creek Basin sources have produced less than 50 percent of collection sy~m design
flows. The unused processing capacity could be used to treat ground water and condensate
generated by the Subsurface IMIIRA.
SUBSUJU'ACB INTERIM REMBDIAL AcrION: ~
ROCKY PLATS PLANT. GOLDEN. COLORADO
cg&alsa-inp\liDal418=4 JIC2.1C1' .
FINAL
SeptaDbcr 1992
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4.6.2 881 Hillside Ground-Water Treatment Svstem
The 881 Hillside Ground-Water Treatment System is currently being installed under the ground-
water IMIIRA for OUI. The system was designed to treat ground water recovered at the 881
Hillside Area. The rate of ground-water recovery is expected to be approximately 5 to 10 gpm
and the ground-water contaminants of concern include VOCs, metals, and uranium:. The
treatment process operating plan includes treatment of collected ground water at the process
design rate of 30 gpm during one 8-hour shift per day. The equipment remains idle throughout
the remaining two shifts. ~round water and condensate generated by.the Subsurface"IM/IRA,
therefore, be treated during one of the remaining 8-hour shifts.
. Figure 4-13 shows that the design of the 881 Hillside Ground-Water Treatment System includes
. UV / peroxide and ion exchange unit operations. A pumped feed system will be used to inject
a 50 percent hydrogen peroxide solution into the wastewater influent line. The surface
water/hydrogen peroxide mixture will then pass through an in-line static mixer before entering
the UV oxidation reactor. In the reactor, the mixture is exposed to UV light where VOCs are
oxidized to carbon dioxide and water.
The effluent from the UV oxidation reactor ,;,till then be pumped through fabric filtratic .uts
to remove any suspended solids that may be present in the piocessing stream. Dis.i-';lVed
uranium and metal CODt~minants will then be removed by the anion and cation exchange units,
respectively. Regeneration .of the anion exchange resin will not be required because of the high
affinity and capacity of the resin for uranium. The expected life of the anion exchange units is
greater than 30 years at the expected influent flows and uranium concentrations. Although other
anions (e.g., chlorides, sulfates) will initially be adsoIbed to the resin, the preferential adsorption
of uranium will result in displacement of the other anions. The spent resin will ultimately
require solidification and disposal as a low-level hazardous waste. The cation exchange resin
has a high affinity for high molecular weight metals (e.g., mercury, copper, lead). It is assumed
that, unlike the anion exchanger, the cation exchange resin will require regeneration. Effluent
from the ion exchange column train is stored. in holding tanks pending laboratory analysis
results. Upon verification that contaminants have been removed to achieve the effluent standards
established for the facility, the treated water is discharged to the SID.
SUBStJRIIACE INTERIM REMBJ)IAL ACI'ION PLAN
ROCICY' PlATS PLANT. GOLDEN, COLORADO
QAcla-inp\fiaal4'-4 fl.1cp
PINAL
ScpIaIIbcr 1992
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FIGURE 4-13
881 Hillside Ground Water Treatment System (planned)
SUBSURFACE INTERIM lBMBDIALAcrION PLAN
aocxy PLATS PLAIn'. OOLDEN, COLOItADO
..~\fiDaM\odfllCp
PINAL
ScpCaabcr 1992
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4.6.3 BuiJdin~ 23m GAC Adsorotion SvstemlBuiJdinr 374 Evaporation System
A final alternative for treatment of ground water and condensate generated by the Subsurface
IMIIRA is the use of the planned Building 231B GAC Adsorption System and the existing
Building 374 Evaporation System. These treatment system configurations are illustrated in
Figure 4-14, and are described below in detail.
The GAC adsOlption system illustrated in Figure 4-14 is planned for construction and start-up
near Building 231B by the end of 1992. This facility is being installed to provide VOC
treatment for decontamination wastewater generated at the RFP (e.g., drill rig decontamination).
Current treatment system design includes installation of a 13,OOO-gallon wastewater holding tank
and a 5,OOO-gallon influent eqna1i7.ation tank. The 500,OOO-gallon wastewater holding tank
shown in Figure 4-14 currently exists, but is not in use. Operating plans for the 231B GAC
Adsorption System include use of this storage tank for additional influent storage capacity, when
required. Treatment system design includes at least two fabric filtIation units configured in
parallel. The parallel configuration allows water to be treated with one filter on line while
filtration media in the other filter is being replaced. Due to the relatively small quantities of
decoDtaminarion. wastewater generated annually (approximately 500,000 gallons) treatment
system design includes disposable GAC units. The process will include two 55-gallon GAC
units in a lead/polisher arrangement. Each 55-gallon unit is 36 inches high and 22 inches in
diameter, and contains app~ximately 165 pounds of GAC. The maximum rated flow capacity
through each unit is 10 gpm. Although the fabric filtration units will remove the majority of the
" suspended solids from the process influent, small particulates will pass through to the GAC
units. It is, therefore, expected that the GAC units will be contaminated with particulate
. radionuclides and, thus, require disposal as a hazardous mixed waste. The treatment system
includes a 5,OOO-gallon effluent storage tank to temporarily hold processed water prior to
transport to Building 374.
The plan of operation for the Building 231B GAC Adsorption Treatment System includes tank
tIUck transport of decontamination wastewater to the facility, batch processing of approximately
10,000 gallons per week: at a flow rate of approximately 7 gpm, and tank uuck transport of the
treated effluent to the Building 374 Low-Level Wastewater Treatment System. The one-way
SUBSURPACB INTI!RIM REMB.DIAL AC110N PLAN
ROCKY PLATS PLANT. QOLDEN. COLORADO
CCqla-inp\fia.aM'-4J112.1Cp
FINAL
Scptrmm' 1992
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Ja '" II> 7 7
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BUILDING 231 B TREATMENT SYSTEM
13.000 GALLON
tI)U)ING TN«
SJO,CIOO-GAU.DN
HOLDING TANK
55-GAU.ON ON,; UNITS
lEAD
ON,; UNIT
POUSHING
ON,; UNIT
5,ooo-cAU.ON
EFfWENT
HOLDING TNfK
FABRIC
AL1RA11ON
UNITS
BUILDING 37 4 TREATMENT SYSTEM
RfP LOW LEVEl.
PROCESS WASlEWATER
AND INCI)EKfAL
RfP RUNOFf.
CHEMICAL, PRETREATMENT
1R£ATED WATER
RECt'ClED TO RfP
PROCESS WAlER SUPPLY .
HOT AIR
4-srAGE
MUL11Pl£
EJFEC1'
fYAPORATOR
SPRAY
DRYER
u.s. DEPARTMENT OF ENERGY
Rocky Flats Plant
Golden. Colorado
SUBSURFACE,IM/IRA
, BUILDINQ 231 B' GAC SYSTEM (PIANNED)/
BUILDING 37.. LOW-LEVEL WASTE TREATMENT SYSTEM,
A
EXHAUST
AIR
FIGURE
-------
travel distance between Building 231B and Building 374 is approximately 1 mile via 7th Street,
Central Avenue, PA Portal #1, and west on Patrol Road.
The Building 374 Low-Level Wastewater Treatment System (Figure 4-14) processes
approximately 12 to 15 million gallons per year onow level wastewater (i.e., < 13,500 Pci/!
of xadioactivity). Influent sources for this system include RFP process wastewater and incidental
RFP surface waters (i.e. site runoff). The treatment system includes chemical precipitation,.
vacuum ftltIation, and evapoxation unit opexations~ Chemical treatment involves addition of iron
salts and lime to cause coagulation and flocculation of suspended particulates present in the
wastewater to produce a filterable precipitate or floc. Radionuclide and metals contaminants
present in the wastewater stream in a particulate state tend to become enmeshed in the floc as
discussed in Section 4.6.1. The floc is then removed from the process stream by vacuum
"filtration. The filter cake produced is approximately 30 percent solids by weight, and is
stabilized with the addition of portland cement. The inorganic contaminants in the filtered
process stream are then concentIated by a four-stage multiple effect evaporator. Evapoxator
vapors, which are free of inorganic contaminants, are condensed and recycled to the RFP
process water supply. The "brine" concentrate is processed by a spxay dryer to evapoxate the
rer-'":Uning liquid. The resulting byproduct solids (i.e., salts) are removed from the process by
a t. ..~ filter unit, and subsequently solidified with the addition of portland cement. The volume
of solidified waste or .sal~rete" from this action represents a small ftaction of RFP's annual
production of this type of waste. Storage and disposal plans for such waste were discussed in
the environmental assessment for the partial closure action at the solar ponds (DOE, 1991c), for
which a finding of no significant impact was issued. Because of the relatively low
concentrations of the contaminants, the solid form or the waste, the protectiveness of the
packaging, and the compliance with applicable RCRA requirements, storing these materials at
the RFP or other DOE location pending disposal would not materially change the impacts
assessed for this action.
The treatment technologies that comprise the Building 231B GAC Adsorption System and the
Building 374 Low-Level Wastewater Treatment System (GAC adso:q>tion, chemical
precipitation/vacuum ltration, and evaporation) are well suired for removal of .vQCs,
Iadionuclides, and metals that may be present in the Subsurface IMIIRA grouI1d water and
SUBSURJIACB IPn'EItIM ItEMBDIAL AcnON PLAN
lloacY PLATS PLANT, GOLDEN, COLOIlADO
ccac\ll-inplfiDal4'-4.J112.1Cp
PJNAL
~1~
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condensate. In addition, extra processing capacity currently exists at both facilities. Although
the Building 374 treatment facility often operates at its maximum capacity, influent storage at
Building 231B and batch processing of collected ground water and condensate allow use of the
facility during off-peak periods.
4.7
ENVIRONMENTAL EVALUATION OF NO ACTION
4.7.1 Air Oualitv Imoa~
The No Action Alternative will not further impact the existing air quality as discussed in the
RFP Final Environmental Impact Statement, 1980 (DOE, 1980).
. 4.7.2 Water Oua1itv Impacts
The No Action Alternative would not contain or remove radionuclides,. VOCs, or metals from
the subsurface at om. As a result, the No Action Alternative would pose a long-term release
risk to the general public. However, short-term risks associated with the No Action Alternative
are insignificant because contamin:ttM ground water is contained well within the RFP boundary,
. .
and surface water discharges from the RFP are monitored and treated, if necessary, in
accordance with the PJant's NPDPS permit.' The No Action Alternative would require that the
current quarterly site monitoring be continued.
4.7.3 TeITeStrial and Aquatic Impacts
The No Action A1temative will not involve any short-term impacts to terrestrial and aquatic
biota.
4.7.4 Wet1ands and FloodDIains
The No Action Alternative will not involve any short-term impacts to wetlands and floodplains.
SUBSUIPACE IN1'BRIM RBMBDIAL AcnON PLAN
ROCICY PlATS PLANT. OOLDJ!N. COLORADO
ccacla-inp\fiaIM\od .JII2.1Cp .
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4.7.S Threatened and Enda~ered Species
The No Action Alternative will not impact threatened and endangered species.
4.7.6 Cultural Resources
The No Action Alternative will not impact culwral resources, as no sites at the RFP have
potential eligibility for the National Register of Historic Places (EG&G, 1991a).
4.7.7 Short-Term Uses and Lo~-Term Productivitv
. Land within OU2 is currently undeveloped and will remain so as part of the RFP for the
foreseeable future. om lies within the RFP security boundaries and is not accessible to the
general public. Therefore, the No Action Alternative will have no effect on the short-term uses
and long-term productivity of lands at om.
4.7.8 Personnel Exposures
The No Action Alternative will have minimal impact on current workers involved at om or at
adjacent RFP sites. Workers will continue to monitor ground water quarterly which would not
present any additional impacts. Because the sources of hazardous wastes would neither be
removed nor controlled, the possibility of contaminated ground water migrating off site would
increase over time. This could then become a source for public exposure in the long term.
4.7.9 Commitment of Resources
The No Action Alternative will not require any additional commitment of resources.
4.7.10
Transportation Inlpacts
The No Action Alternative will not require constnlction or transport of materials. Therefore,
will be no additional on-site or off-site transportation activities.
SUBSUIIJIACE INTERIM REMEDIAL ACTION p~
ROCXY PLATS PLANT, GOlDEN. COLORADO
cg&cla-inp\fillll4\8ec4 "p12.11Cp
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ScpIrmbcr 1992
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4.7.11
Cumulative Imoocts
Because there are no additional remedial activities associated with the No Action Alternative,
there are no cumulative impacts relating to the environmental criteria identifiers in Sections 4.7.1
through 4.7.10.
4.8
COMPARISON OF ENVIRONMENTAL EFFECTS OF RFP IMIIRAs
Table 4-4 compares the environmental impacts of the proposed Subsurface IM1IRA at om with
other IMIIRAs currently being implemented at RFP. There are no environmental impacts
associated with the No Action Alternative with respect to subsurface VOC coDmmination at om
as indicated in Table 4-4. This is consistent with the absence of any threat posed by the
subsurface VOC conmmination at om (Section 1). Impacts in all categories from the proposed
action (environmental, long-term, public exposure, worker exposure, off-site and on-site
transportation) are not expected to be significant.
SUBSURPACB IN'1'EJtIM RBMBJ)lAL AcnON PLAN
aoacY FIATS PLANJ', OOLDEN, COLORADO
qa,\a.inp\fiaIM'-4.J112..... .
PINAL
SqICaDbcr 1991
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I~~
I~~
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82:
t
Table 4-4
Cumulative hnpacts of Interim' Remedial Actions at Rocky Flats Plant
~
881 Hillside South Walnut Creek
Ground-Water IMJIRA Basin Surface Water
at OUt IMJIRA at OU2 Subsurface
. Impact No Action UV Peroxide Chemical Precipitation/ IMJIRA at OU2
Category Alternative Oxidation/Ion Microfiltration and GAC Vapor Extraction Cwnulative
Exchange Adsorption System System Impacts
I.!.dvironmentallmpacts
Aquatic Impacts None None None None
'Ib.ieatened and Endangered None None None None None
Species
Historic and Archeological None None None None None
Sites
Short- and Long-Term Land None None None None None
Productivity
Wetland and Floodplain None None Minimal Minimal Minimal
Excavation None 10,300 yd3 None 15 yd3 10,315 yd3
Well Drilling None None None 6 yd3 6 yd3
Long- Tenn Considerations
Interim Removal Action No Approximately 30 years Approximately 30 years 30 yearff N/A
VOC Contamination Removal No Yes Yes Yes N/A
VOC Contaminant Destniction No Yes Yes Yes N/A
Inorganic Contaminant No Yes Yes No N/A
Removal
Exposure to General Public
Construction No Yes No No Yes
Routine No No No No No
Accident No No No No No
if
i"-
I!:~
-------
!~i
I~!
(iJQ
~U
. 8m
.ft 66
,~
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~~
~
Table 4-4 (Continued)
Cumulative Impacts of Interim Remedial Actions at Rocky Flats Plant
~
'. 881 Inllside South Walnut Creek
Ground-Water IMlIRA Basin Surface Water
at OUI IMlIRA at OU2 Subsurface
bnpact No Action UV Peroxide Chemical Precipitation! IMlIRA at OU2
Category Alternative Oxidation/Ion Miuoliltratlon and GAC Vapor Extraction Cwnulative
Exchan&e Adsorption System System bnpacts
Exposure to Workers
Construction No Negligible Yes Minimal Y~
Routine No Negligible Minimal Minimal Minimal
Accident No Yes Yes Minimal Yes
Off-Slte Tramportatlon
Construction (truckloads) None <10 <5 <5 <18
Operation (loads/year) None Not Determined
(truckloads)
On-Slte Tramportatlon
Construction (truckloads) None <20 <10 <3 <35
Operation (loadS\year) None <10 <10 <365 <400
Allumlna 3 fOUl'1 IMlIRA
Solidified filter cab &. apeD! OAC
if
t-
...!
-------
SECTION 5
IMPLEMENTATION PLAN
This section presents the implementation plan for conduct of the Subsurface IMJIRA.
Implementation involves the preparation of a Test Plan for each of the three pilot tests proposed .
in the IMIIRAPIEA. The Test Plans will provide all the engineering designs, performance
specifications, and procedures necessary for well installation and fabrication of the vapor
extraction and treatment unit. The Test Plans will also provide the necessary procedures and
guidance to successfully execute the pilot tests. Following completion of each pilot study, a Test
Report will be prepared summarizing the test data. Recommendations for post-pilot study
operation of the in situ vacuum-enhanced vapor extraction system will also be presented in each
Test Report based on evaluations of the test data. Sections 5.1 and 5.2 discuss the elements of
. the Pilot Test Plans and Test Report, respectively.
5.1
PILOT STUDY TEST PLANS
Test Plans will be prepared to provide comprehensive and detailed guidance for conduct of the
Subsurface IM/IRA pilot studies at OU 2. A Test Plan will be prepared for each of the three
pilot studies (Le., 903 Pad, Mound, and East Trenches). Although the Test Plans will be similar
in format and content, each will be tailored to test-specific objectives. Table 5-1 provides a
preliminary outline that will be used to prepare the Test Plans. Although the final Test Plan
format may differ from that .shown in Table 5-1, the elements represented by each of the sections
listed will be addressed. .
Section I of the Test Plan briefly describes the purpose of the pilot study and notes its role
within RIJFS activities at OU 2. The introduction will also present a summary of Phase IT RI
data pertinent to the pilot test that has become available since preparation of the Subsurface.
IMJIRAP/EA. Section 2 will discuss the scope of the pilot test; Section 3 will define the data
quality objectives (DQOs) for conduct of the pilot test. DQOs will be developed, based on the
goals of the proposed IRA. These goals include: assessment of vapor extraction as a means for
removing subsurface, residual free-phase VOC conrnmination at OU2; determination of the area
SUBSURFACE IN'I1!.RIM RmdEDIAL AcnON PLAN
ROCKY PLATS PLANT, OOLDEN, COLORADO
cc&C\u-inp\liaal411cc-5.8Cp
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Table 5-1
Subsurface JM/IRA Test Plan Outline
I.
Introduction
n.
Scope of Pilot Study
Data Quality Objectives
m.
IV.
Well Design and Installation
v.
Vapor Extraction and Treatment
System Design, Construction, and
Commissioning
VI.
Pilot Test. and Data Collection
Procedures
Vll.
Data Evaluation
Appendices
Quality Assurance Project Plan
Sampling and Analysis Plan
Health and Safety Plan
Data Management Plan
SUBSURFACE JNTBRIM REMBDlAL AcnON PlAN
ROCICY' PlATS PlANT, GOLDEN, COLORADO
cc&,\u-inp\fiaaM\8cc-5.1Cp
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ScpIaDbcr 1992
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of influence of the vapor exttaction system; and prediction of post-pilot study system performance.
Section 4 will include the specifications and engineering design drawings for completion of the
vapor and ground-water extraction and air injection wells. This section will specify the procedures
to be followed for well installation and field engineering change requests. Criteria for well
abandonment and alternative well placement will also be provided. Similarly, Section 5 will
provide equipment specifications, system design drawings, and system performance specifications
for the vapor exttaction pilot unit. This section will also provide system start-up and
troubleshooting guidance. S~on 6 will present detailed procedures fQr conduct of the pilot test.
Vapor extraction and treatment system operating procedures will be specified, including system
shutdown criteria. This section will also present pilot study data collection requirements. Section 7
of the Test Plan will present guidance for evaluation of pilot test data. This guidance will include,
but not be limited to, equipment and system performance assessment, CODtaminant mass recovery
computation, subsurface areal influence estimation, and post-pilot study operation assessment.
The Test Plans will also include project-specific quality assurance/quality control (QAlQC),
sampling and analysis, health and safety, and data management guidance for conduct of the pilot
studies. QAlQC guidance will be provided in the form of a project-specific addendum to the EM
Site-Wide Quality Assurance Plugram Plan (EG&G, -1991) and the ER RCRAICERCLA Quality
Assurance Project Plan (EG&G, 1991). Health and safety guidance will be provided in the form
of a project-specific addendum to the ERHSPP (EG&G, 1989). EM Department Standard
Operating Procedures will also be referenced in the Test Plans when applicable.
Preparation of the first Pilot Test Plan will begin immediately after regulatory agency approval of
the Subsurface IMIIR.APIEA. Draft and final Test Plans ' will be submitted to EPA and CDH for'
approval prior to implementation. The Test Plans will be available for public review, but will not
be subject to formal public comment.
SUBSURPACB JNTERIM REMEDIAL AcrION PLAN
ROCICY FlATS PLANT. COLDEN. COLORADO
cc&clu-inp\fiaal4\8cc-S.ocp ,
FINAL
Scptcmbcr 1992
-------
5.2
PILOT TEST REPORTS
A Pilot Test Report will be prepared at the conclusion of each OU2 in situ vapor extraction pilot
test. The Test Reports will summarize the tests conducted, present test data and data evaluation
results, and present recommendations for post-pilot study operation of the vapor extraction systems.
Draft and final Pilot Test Reports will be prepared and submitted to the regulatory agencies for
review and approval of post-pilot study recommendations. The final Test Report will be made
available to the public.
5.3
IM/IRA SCHEDULE
A proposed schedule for preparing the planning documents for the Subsurface IMIIRA is presented
in Table 5-2. The propo~ pilot tests (i.e., 903 Pad, Mound, and East Trenches) sequential
implementation allows knowledge gained from the first test to be incorporated into the second, and
so on. Table 5-2 presents specifIc completion dates for IMIIRA activities leading up to the startup
of the pilot unit at the first test site. Due to the uncertainty associated with the actual length of
time that will be required to complete the first pilot completion dates for activities subsequent to
the first pilot ~st are listed in time durations relative to conclusion of the first pilot test.
SUBSURFACE INTERIM REMEDIAL AC1'ION PlJ\N
ROCKY PLATS PLANT. OOLDEN. COLORADO
ccAclu-inp\filllJ4,"-,.1cp
FINAL
~1992
-------
TABLE 5-2
Proposed Schedule.
Subsurface IM/IRA
Operable Unit No.2
Activity
Submit Draft Proposed Subsurface IM/IRAP/EA to EPAlCDH
EPAlCDH comments on Draft Proposed Subsurface IM/IRAP/EA
Submit Proposed Subsurface IM/IRAPIBA to Public-Public Comment
Period Begins
Public Meetings
Public Comment Period Concludes
Submit Draft Responsiveness Summary to EPAlCDH
EP AlCDH Comments on Draft Responsiveness Summary
DOE-Headquarters approves Final Responsiveness Summary, Final
IM/IRAPIBA, and NEPA Decision (i.e., FONSI)
Submit Final Responsiveness Summary and Final IM/IRAPIBA to
EPAlCDH
EPAlCDH Approves Final Responsiveness Summary and Final
Subsurface IM/IRAP/EA
Release Final Responsiveness Summary and Final Subsurface
IM/IRAP/EA to Public-Two-week Public Availability Period Begins
Two-week Public Availability Period Concludes
Site 1 Pilot Test:
Submit Draft Test Plan to EPAlCDH
EPAlCDH Comments on Draft Test Plan
SCBSURPACB JNTI!RIM REMBDIAL AcnON PlAN
ROCKY FLATS PLANJ', GOLDEN, COLORADO
ecqlls-inplfill814'--5.1Cp
FINAL
Date
02 March 1992
16 March 1992
20 March 1992
07 April 1992
07 May 199:
18 May 1992
16 June 1992
23 June 1992
19 August 1992
20 August 1992
03 September 1992
10 September 1992
24 September 1992
29 October 1992
26 November 1992
ScpIaDbcr 199%
-------
TABLE 5-2 (CODtinUed)
Proposed Schedule
Subsurface IMIIRA
Operable Unit No.2
Activity
Submit Final Test Plan to EPAlCDH, and Complete Pilot Unit Bid
Package
Solicit and Complete Evaluation of Subcontractor BidsIIssue Purchase
Order .
Finalize Subcontractor Design DrawingslEG&G Issues Authorization
to Proceed
Complete Pilot Unit Installation
Complete Inspection and System StartuplBegin Pilot Testing
Complete Pilot Study
Submit Draft Pilot Test Report to EPAlCDH concludes-
EPAlCDH Comments on Draft Pilot Test Report
Submit Final Pilot Test Report to EPAlCDH
Site 2 Pilot Test:
Submit Draft Test Plan to EPAlCDH
EPAlCDH Comments on Draft Test Plan
SUBSUJUIACE INTERIM REMBDlAL AcnON ~
ROCKY PLATS PLANI', GOLDEN, COLORADO
cc&clu-irlplfiDal4\8cc-S.ocp
FINAL
Date
12 January 1993
09 March 1993
26 April 1993
03 August 1993
15 September 1993
13 weeks after Pilot
Study begins
24 weeks after Site 1
Pilot Study
3 weeks after receipt
of Site 1 Draft Test
Report
4 weeks after receipt
of EPA/CDH
Comments .on Site 1
Draft Test Report
10 weeks after
EPAlCDH approves
Site 1 Final Test Plan
4 weeks after receipt
of Site 2 Draft Test
Plan
ScpIcmbcr 1992
-------
TABLE 5-2 (Continued)
Proposed Schedule
Subsurface IMIIRA
Operable Unit No.2
Activity
Submit Final Test Plan to EPAlCDH and Complete Pilot Unit Bid
Package
. Solicit and Complete Evaluation of Subcontractor BidslIssue Purchase
Order
Finalize Subconttactor Design DrawingslEG&G Issues Authorization
Complete Pilot Unit Installation
Complete Inspection and System StartuplBegin Pilot Testing
Complete Pilot Study
Submit Draft Pilot ~est Report to EPAlCDH
EPAlCDH CommentS on Draft Pilot Test Report
SUBSUJtPACE JN1'ERIM REMEDIAL AcrION PLAN
ROCKY PlATS PLANT. OOLDEN. COLORADO
cc&e\u-inp\fiaaM\I=-5.scp
PINAL
Date
9 weeks after receipt
of EPA/CDH
Comments on Site 2
Draft Test Plan
8 weeks after
completion of Site 2
Pilot Unit Bid
Package
7 weeks after
issuance of Purchase
Order
14 weeks after a.)
EG&G authorization
to proceed, or
b.) completion of Site
1 Pilot Study,
whichever is later.
6 weeks after
installation of Site 2
Pilot Unit Complete
Within 13 weeks after
Site 2 Pilot Study
begins.
24 weeks after Site 2
Pilot Study concludes8
3 weeks after receipt
of Site 2 Draft Test
Report
ScpIaDbcr 1992
-------
TABLE 5-2 (Continued)
Proposed Schedule
Subsurface IMIIRA
Operable Unit No.2
Activity
Submit Final Pilot Test Report to EPAlCDH
Site 3 Pilot Test:
Submit Draft Test Plan to EPAlCDH
EPAlCDH Comments on Draft Test Plan
Submit Final Test Plan to EPAlCDH, and Complete Pilot Unit Bid
Package
Solicit and Complete Evaluation of Subcontractor
BidslIssue Purchase Order
Finalize Subcontractor Design Drawings/EG&G Issues Authorization
to Proceed
SUBSURFACE INTBRIM ltEMEDIAL ACI'lON ~
ROCKY PLATS PlANT,
-------
TABLE 5-2 (Continued)
Proposed Schedule
Subsurface IMIIRA
Operable Unit No.2
Activity
Complete Pilot Unit Installation
Complete Inspection ~d System Startup/Begin Pilot Testing
Complete Pilot Study
Submit Draft Pilot Test Report to EPAlCDH
EPAlCDH Comments on DI:aft Pilot Test Report
Submit Final Pilot Test Report to EPAlCDH
a Schedule assumes 80 days for turnaround of analytical laboratory data.
SUBStJUlACB N1'I!ItIM REMEDIAL AcnON PLAN
ROOCY FLATS PlANT. OOLDEN. COLORADO
oc&,la-inp\liaal4\8oc-.s.1Cp
PINAL
Date
14 weeks after a.)
EG&G authorization
to proceed, or b.)
completion of Site 2
Pilot Study,
whichever is later
6 weeks after
installation of Site 3
Pilot Unit Complete
12 weeks after Site 3
Pilot Study begins.
24 weeks after Site 3
Pilot Study concludes.
3 weeks after receipt
of Site 3 Draft Test
Report
4 weeks after receipt
of EPA/CDH
Comments on Draft
Test Report
Scp1aDbcr 1992
-------
SECTION 6
REFERENCES
ABC (Atomic Energy Commission). 1972. Environmental Statement for Land Acquisition,
Rocky Flats Plant, Golden, Colorado. April 1972.
Burney (Burney & Associates, Inc.) 1989. An Archeological and Historical Survey of Selected
Parcels Within the Department of Energy, Rocky Flats Plant, North Jefferson County,
Colorado. January 1989
Calkins, K.W. 1970. Memorandum to L.M. Joshel; Dow Chemical Company, ROcky Flats
Division. 19 August 1970.
Clark, D.L. 1991. Pyrophoric Potential of Finely Divided Plutonium Metal in Soil at the 903
Drum Storage Site, Rocky Flats Plant, Golden, Colorado. June 1991.
. Cleveland, J.M. 1979. The Chemistry of Plutonium. American Nuclear Society, New York,
New York.
Dames & Moore. 1991. Cultural Resources Class m Survey of the Department of Energy,
. Rocky Flats Plant, Northern Jefferson and Boulder Counties, Colorado (Version 1.0).
Denver, Colorado. 1 August 1991.
DOE (U.S. Department of Energy) 1980. Final Environmental Impact Statement, Rocky F1LIls
Planl Site, Golden, Jefferson Counry, Colorado. ERDA 1545-D, DOEIEIS-Q064. April
1980.
DOE (U.S. Department of Energy) 1985. Preamble: National Environmental Policy Act, U.S:
Department of Energy Order 5440.1C. 9 April 1985.
DOE (U.S. Department of Energy) 1986. . Comprehensive Environmental Assessment and
Response Program Phase 1: Draft Installation Assessment, Rocky Flats Planl. U. S.
Department of Energy, unnumbered draft report. .
DOE (U.S. Department of Energy) 1988a. Draft DOE NEPA Compliance Guide.. Office of
NEPA Project Assistance, Washington, D.C. October 1988.
DOE (U.S. Department of Energy) 1988b. Environmental Guidance Program Reference Book;
ESA and the FWC4. U.S. DOE, Washington, D.C.
DOE (U.S. Department of Energy) 1988c. U.S. Depanment of Energy; Internal Dose
Conversion Factorsfor Calculation of Dose to the Public. DOElEH-0071, Washington,
D.C. July 1988.
SUBSURFACE INTJ!ItIM REMEDIAL ACI'lON PLAN
ROCKY FLATS PLANT, OOLDEN, COLORADO
q"''-inp\lill8l4~.....
FINAL
ScpIombcr 1992
-------
DOE (U.S. Department of Energy) 1988d. Radiation Protectionfor Occupation Workers. U.S.
Department of Energy Order 5480.11. December 1988.
DOE (U.S. Department of Energy) 19901.
DOE (U.S. Department of Energy) 1990b. Radiation Protection of the Public and the
Environment. U.S. Department of Energy Order 5400.5. 8 Febmary 1990.
DOE (U.S. Department of Energy) 1991a.. Federal Faciliry Agreement and COTlSent
Order/Inter-Agency Agreement, U.S. Department of Energy. 22 January 1991.
DOE (U.S. Department of Energy) 1991b. MiXed Waste Disposal OperatioTlS at the Nevada
Test Site, U.S. Department of Energy (Draft) 1991.
DOE (U.S. Department of Energy) 1991c. Environmental Assessment and Finding of No
Significant Impact for the Dewatering and RCRA Partial Closure Action on Solar
Evaporation Ponds. DOElEA-0487. June 1991.
Donaldson, J. C., and L. MacMillan. 1980. "Oil and Gas: History of Development and
Principal Fields in Colorado," In: Colorado Geology, pp. 175-189, H. C. Kent and K.
W. Porter, 005, Rocky Mountain Association of Geologists, Denver, Colorado.
Dow Chemical Company. 1971. Anonymous Memorandum, 15 January 1971.
DRCOG (Denver Regional Council of Governments) 1989.
Estimates. Denver, Colorado. .
Population and Household
DRCOG (Denver Regional Council of Governments) 1990. DRCOG Regional Notes, 1990
Estimates. Denver, Colorado.
EG&G. 1990a. An Aerial Radiological Survey of the U.S. Department of Energy's Rocky
Flats Plant and Surrounding Area, EGG-I0617-1044.
EG&G. 199Ob. Background Geochemical Characterization Report.
OO&G. 199Oc. Phase n RFIlRIFS Workplan, Final, Operable Unit No.2, 903 Pad, Mound
and East Trenches Area.
EG&G. 199Od. Wetlands Assessment, ~ocky Flats Plant Site.
EG&G. 1990e. Surface Water Interim Measures/Interim Remedial Action P1anI Environmental
. Assessment, Operable Unit No.2.
EG&G. 1991a. Cultural Resources Class m Survey of the Department of Energy, Rocky Flats
Plant, Northern Jefferson and Boulder Counties.
SUBSURFACE INTERIM REMEDIAL AcnON PLAN
ROCKY FLATS l'LANT. OOLDEN. COLORADO
ec"'\u-inp\fiaal4~.1Cp
FINAL
ScpIrmbcr 1992
-------
EG&G. 1991b. In Situ Surveys of the United States Department of Energy's Rocky Flats Plant,
Golden, Co1ondo. EGG-10617-1129, UC-702. May 1991.
EG&G. 1991c. On-Site Transportation Manual.
EG&G. 1991d. Plan for Prevention of Contaminant Dispersion.
EG&G. 1991e. Threatened and Endangered Species Evaluation - Rocky Flats Site.
EG&G. 1991f. Surface Water Interim MeasureslInterim Remedial Action Plan! Environmental
Assessment, South Walnut Creek Basin at Operable Unit No.2.
EG&G. 1991g. Surface Water Interim MeasureslInterim Remedial Action Plan! Environmental
Assessment, Woman Creek Basin at Operable Unit No.2.
EG&G. 1991h. Hazardous Waste Requirements Manual. 1-100Q0-HWRM. May 1, 1991.
Emery, R.M, D.C. Klopfer, T.R. Garland and W.C. Weimer. 1975. "The Ecological Behavior
of Plutonium and Americium in a Freshwater Pond. n In: Radioecology and Energy
Resources, pp. 74-75, C.E. Cushing, ed. Stoudsburg, Pennsylvania.
EPA (U.S. EnvironmentalProtection Agency) 1985. Compilation .of Air Pollutant Emission
Factors. Volume I: Stationary Point and Area Sources, PB86-124906, Research Park,
North Carolina.
EPA (U.S. Environmental Protection Agency) 1988. Limiting Valves of Radionuclide Intake
and Air Concentration and Dose Conversion Factors for Inhalation, Submersion and
Ingestion, EPA-5201l-88-020, Washington, D.C.
EPA (U.S. Environmental Protection Agency) 1989a. Considerations in Ground-Water
Remediation at Superfund Sites. Office of Solid Waste and Emergency Response
Directive 9355.4-03.
EP A (U.S. Environmental Protection Agency) 1989b. Remedial InvestigationIFeasibility Study
S~m1ining. U.S. Environmental Protection Agency, Office of Solid Waste and
Emergency Response Directive. . .
EPA (U.S. Environmental Protection Agency) 1989c. Risk Assessment Guidance For
Superfund, Volume 1 Human Health Evaluation Manual (Part A), EPA/540/1-89/oo2.
EPA (U.S. Environmental Protection Agency) 1989d. Superfund LDR Guide #7, Determining
When Land Disposal Restrictions (LDRs) are Relevant and A,Wro,priate to CERCLA
Response Actions. Superfund Publication: 9347.3-08FS. December 1989.
EPA (U.S. Environmental Protection Agency) 1991. Health Effects Assessment Tables; Annual
FY-l991. Office of Emergency and Remedial Response, Washington, D.C., OERR
9200.6-303(91-1). .
SUBSURFACE INTERIM REMEDIAL ACTION PI..AN
ROCKY PLATS PLANT, OOLDEN, COLORADO
cg&,\.u-inp\IiIIIM'-"6.ocp
PINAL
ScpCrmbe1' 1992
-------
Freiberg, K.J. 1970. Memorandum to E.A. Putzier, Dow Chemical Company, Rocky Flats
Division. 14 Apri11970. . .
Gifford, F.A., Jr. 1961. Use of Routine Meteorological Observations for Estimating
Atmospheric Dispersion, Nuclear Safety 2(4): 47-57. 1961.
Gifford, F.A., Jr. 1976. Turbulent Diffusion - Type Schemes: A Review, Nuclear Safety
17(1): 68-86. February 1976.
Hurr, R.T. 1976. Hydrology of a Nuclear Processing Plant Site, Rocky Flats Plant, Jefferson
County, Colorado; U.S. Geological Survey Oper-File Report 76-268.
Dlsley, C.T. 1983. Environmental Inventory - Updated Information on Burial Sites at Rocky
Flats, EA-321-83-240. 28 January 1983. .
. Johnson, P.C., M.W. Kemblowski, J.D. Colthart, D.L. Byers, and C.C. Stanley. 1989.
" A Practical Approach to the Design, Operation,. and Monitoring of In Situ Soil
Venting Systems, Shell Development Company." Presented at U.S.
Environmental Protection Agency Workshop on Vacuum Extraction, Edison, NJ,
28 and 29 June 1989. .
Little, C.A., C.A. Whicker, and T.F. Winsor. 1980. "Plutonium in a Grassland Ecosystem
at Rocky Flats." Journal of Environmental QUJZlity, Vol. 9, No.3, July-September.
Orlandini, K.A., W.R. Penrose, B.R. Harvey, M.B. Lovett, M.W. Findlay. 1990. Colloidal
Behavior of Actinides in an Oligotrophic Lake. In: Environmental Science and
Technology, Volume 24, No.5, 1990.
Owen, J.B. and L.:td. Steward. 1973. Environmental Inventory - A Historical Summation of
Environmental Incidents Affecting Soils at or Near the U.S. Atomic Energy Commission
Rocky Flats Plant; Dow Chemical Company, Rocky Flats Division. .
Post, P. 1989. Personal Communication, U.S.D.A., Colorado Agricultural Statistics Service.
November 1989.
Poston, T.M and D.C. Klopfer. 1988. Concentration Factors Used in the Assessment of
Radiation Dose to Consumers of Fish: A Review of 27 Radionuclides. In: Heallh
Physics, Vol. 55, No~ 5:pp 751-766.
Rao, R.K., E.L. Wilmot, and R.E. Luna. 1982. Non-Radiological Impact of Transporting
Radioactive ,Materials, SAND 81-1703, 1TC-0236, Sandia National Laboratories,
Albuquerque, NM. .
Robson, S.G., J.C. Romero, and S. Zawistowski. 1981. Geologic Structure, Hydrology and
Water Quality of the Arapahoe Aquifer in the Denver Basin, Colorado: U. S. Geological
. Survey Atlas HA-647. .
SUBSURFACE INTERIM REMEDIAL ACtION PLAN
ROCKY FLATS PLANT. OOLDEN. COLORADO
ec&C\aHnpIfillaJ4I1ec-6.1Cp
FINAL
ScpIaDbcr 1992
-------
Robson, S.G., A. Wacinski, S. Zawistowski, and J.C. Romero. 1981. Geologic Structure,
Hydrology, and Water Quality of the Laramie-:Fox Hills Aquifer in the Denver Basin,
Colorado: U.S. Geological Survey Hydrologic Atlas HA-650.
Rockwell International. 1987a. Draft Remedial Investigation Report for 903 Pad, Mound, and
East Trenches Areas, U. S. Department of Energy, Rocky Flats Plant, Golden,
Colorado. 31 December 1987.
Rockwell International. 1987b. Resource Conservation and Recovery Act Part B - Operating
Permit Application fur U.S. DOE Rocky Flats Plant, Hazardous and Radioactive Mixed
. Wastes, Revision 1; U.S. Department of Energy, unnumbered report.
Rockwell International. 1988a. Draft Feasibility Study Report for High Priority Sites (881
Hillside Area). March 1988. .
Rockwell International. 1988b. Letter from George Campbell to Albert E. Whiteman, Rocky
Flats Area Office re: Endangered Species at the Rocky Flats Plant. 15 July 1988.
Rockwell International. 1988c. Draft Remedial Investigation Plan for 903 Pad, Mound, East
Trenches Areas, Phase n Work Plan, U. S. Department of Energy, Rocky Flats Plant,
Golden, Colorado. 30 June 1988. .
Rockwell International. 1989a. Background Geochemical Characterization Report, U.S.
Department of Energy, Rocky Flats Plant, Golden, Colorado. 15 December 1989.
Rockwell International. 1989b. Quality Assurance/Quality Control Plan: Environmental
Restoration Program, Rocky Flats Plant. January 1989.
Rockwell International. 1989c. Draft Interim M~ureslInterim Remedial Action Plan and
. Decision Document for 903 Pad, Mound, and East Trenches Area, U.S. Department of
Energy, Rocky Flats Plant, Golden, Colorado. December 1989.
Sax, N. I. and R J. Lewis. 1987. Hawley's Condensed Chemical Dictionary, Eleventh
Edition, Van Nostrand Reinhold Company, New York.
Smith, RE. 1975. Memorandum to D.J. Cockeram, Rockwell International, Rocky Flats Plant
on Buried Radioactive Material. 2 September 1975.
USFWS (U.S..Fish and Wildlife Service). 1984. Peregrine Falcon Recovery Plan.
Weber, W.A., G. Kunkel, and L. Schultz. 1974. A Botanical Inventory of the Rocky Flats
Atomic Energy Commission Site, Final Report; University of Colorado at .Boulder,
Colorado, report CQO-2371-2.
Whicker, F.W., J.E. Pender, J.W. Bowling, J.J. Alberts, I.L. Brisbin. 1990. Distribution of .
Long-Lived Radionuclides in an Abandoned Reactor Cooling Reservoir. In: Ecological
Monographs, Vol. 60, No.4; pp. 471-496.
SUBSURFACB IN'I'EIUM REMBDIAL AcrION PLAN
ROCKY FLATS PLANT, GOLDEN, COLORADO
eaAc\u.inplfmal4\1ec-6.1Cp
FINAL
ScpIaDbcr 1992
-------
Whicker, F. W. 1979. Radioecology of Natural Systems, Final Report for Period May I, 1962
- October 31, 1979, CQO-U56-117, Colorado State University, Fort Collins, Colorado.
SUBSURFACE IN'I'BRIM REMBDIAL AcnON PLAN
ROCKY PlATS PLANT, COLDEN. COLORADO
-------
, ..".
.r'
EXPLANA1l0N
""'4~ NWaW.
~ loiii- === _lilt (181)
..
_tfI-.a
WIllI. 8U:IIIIII - - II'
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. ,
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REWEDIAL INVEST! .
INDIVIDUAL HAZA~~~8N AREAS AND
SITES S SUBSTANCE
FlOUR[ 2.2
-------
'-.
EXPLANATION
o
---
81! (till)
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---f11
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OI'DAU UIIT NO. 2
SIIISI/RFACf; "/1M
POTENTIOMETRIC SURFACE Of THE
UNCONRNED GROUND-WATER
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FlOUR[ 2-7
.",
-------
1
~ .
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FIGURE 2-1
1882
ij
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,
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,
-------
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EXPLANATION
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FIGURE 2.10
-------
. I
EXPLANATION
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!
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fIGURE 2-11
-------
. I
u.s. DfJ'ARnIDIT tIfF OIEIIOY
Rooky FlaIl Plant. CIoIdeII, CoI8Ndo
OPDAILI UIIT NO. 2
SUlSUllf'ACI: "/IlIA
CARBON TETRACHLORIDE ISOPLITHS
FOR THE UNCONRNED ALLU~
GROUND-WATER flOW SYSTEM
third Quarter 1991
FIGURE 2-12
cJ
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EXPLANATION
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1882 nGURE 2-13
-------
I'
, I
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EXPlANATION
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CGIII'CIIII IIIIINII. . ",
u.s. DEPARnIDfT OF ENDIOr
IIooIIr F1aI8 Plant, 8oIdIn, CtIInIdo
OPEIIAIU IIIIr NO. 2
SUISUM'ACI "/1M
TRICHLOROETHENE ISOPLETHS
FOR THE UNCONnNED ALLUVIAl
GROUND-WATER FLOW SYSTEM
ThIrd Quart.r 1991
noURE 2 .14 R8v~
'882
-------
i
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-
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EXPLANATION
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Scale: 1" . 800'
II'
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u.s. Ie
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, 0aId0n, Colorado
0I'EIIAItI UIIT
SUllSUllFACI II HO. 2
CARBON TET /1M
F8:oJ~~-~~=~~W~ ~i%~~S
ThIrd QuartFlO,W SYSTEM
Ir 991
1112 FIGURE 2.15
-------
. I
EXPLANATIO~
d
500/
/1lrI
HIMJI.W. ~ SUISTNa
SIT[ (ItSS)
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u.s. DEPARnIDIT OF EIIDIGY
RooIIp FlaIl Plant. 00IcIen. c:oIorado
OI'UAIU UNIT NO. 2
SUISUllFACE Ill/IRA
TETRACHLOROETHENE ISOPlETHS
fOR THE UNCONfiNED BEDROCK
GROUND-WATER fLOW SYSTEM
ThIrd Quart.r 1991
F'IGURE 2. 18 R.f.:
.Janua 1882
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EXPlANATION
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1
Scale: 1. - 800'
f1 .. lOG'
, . .
00IIIIIIII IIIIIMI. - 20'
u.s. DD'ARNEHT or ENERGY
RookJ f1aI8 Plant, Golden, Colorado
0P£RA8U UNIT NO.2
SUISURFACE III/IlIA
TRICHLOROETHENE ISOPLETHS
FOR THE UNCONFINED BEDROCK
GROUND-WATER FLOW SYSTEM
Third Ouarter 1991
fiGURE 2-17
R...: June 1882
Jon
-------
. I
EXPLANATION
c:J
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Scale: 1. . 800'
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OPDAU UIIT 110. I
Sl8Ullf'ACE "/IlIA'
SEDIM~~r~~tJYtRTEINRo AND
STAnONS
FIOUR[ 2-1.
1882
~
1
I
/
-------
RECOVERID
VAPORS fROM
EXTRACTION
WEI.1.S
1 I
CONDENS\1E COUECTED
FOR TRE'A'BIENT
~
1. VAPOR TRE'A'BIENT S't'S1DI [QUIPWENT
IS MOUNTED ON A flATBED 1JWI.£R
FOR E'ASE Of' TRANSPORT TO E'JoCH
PILOT TEST S/J[.
2. HYDROCARBON SENSORS ARE PLACED
DOWNS1RE'AIoI OF THE VACUUM PUMP
IN THE SECONDMY CONTAINMENT
CAVITIES OF THE PROCESS PIPING IS
NECESSARV TO UONITOR FOR VOC-
CONTAUINATED VAPOR LE'AI
-------
SOUIII IIIMIf CJUI( -
-~
I==,
till(
CROSS FLOW FILTRATION
I
I IIEIotIIIWIE IIODUU3 I
I I
. I ClfNM LOOP, j
-=-1 ~~~~.
~--_J_--_J 1IE1I11WJZA1IOII
. ................................
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'RIA:
SOUDS 'RI DISPOSAL
. ..........................................
SOUDS DEWATERING EQUIPMENT
,.
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: IIII/IMIlA1IOII
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NEUTRAUZA TION
RD:YIU
SIRrAM
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(SWIIH'I)
u.s. IIIPAIIIIDIT f1I DID1IY
...., filii PIInt. ....... CoIer8d8
0f'IIW&I UIIT 110. 2
1UlSUllFM:E "/1M
SOUTH WALNUT CREEK BASIN CHEMICAL
PRECIPITATION/MICROnLTRAnON AND GAC
. ADSORPTI'ON TREATMENT SYSTEM
STNIHII' UIITS
FlOUR! 4-tl
-------
GROUND WAD
FIIOII
881/IU.SIDE
"
"
~Oz fm)
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0PDAItI UIIT 110. I
Sl8UIfACI II/IM
881 HIu.sIDE
GROUND-WATER TREATMENT SYSTEM
(PLANNED)
FIOURE 4.13
-------
DOE EA-0625
FINAL
SUBSURFACE
INTERIM MEASURES/
INTERIM REMEDIAL ACTION PLAN/
ENVIRONMENTAL ASSESSMENT
AND DECISION DOCUMENT
OPERABLE UNIT NO.2
U.S. DEPARTMENI' OF ENERGY
Rocky Flats Plant
Golden, Colorado
ENVIRONMENT AL RESTORATION PROGRAM
10 September 1992
-------
DOE EA-062S
SUBSURFACE INTERIM MEASURES/INTERIM REMEDIAL ACTION
PLAN/ENVIRONMENTAL ASSESSMENT AND DECISION DOCUMENT
OPERABLE UNIT NO.2
VOLUME IT
u.s. Department of Energy
Rocky Flats Plant
Golden, Colorado
10 SEPTEMBER 1992
FINAL
Prepared by:
EG&G Rocky Flats, Inc.
Rocky Flats Plant
-------
PREFACE TO APPENDICFS
The analytical data presented in Subsurface IMIIRAP/EA Appendices A and B were obtained
from the Rocky Flats Environmental Database System (RFEDS). The data often include
qualifiers to aid the reader in assessment of the contaminant concentrations reported.. These
qualifiers are defined in many of the data tables presented in the appendices. The five most
common data qualifiers are briefly discussed here for the benefit of the reader.
B=
Present in blank. As part of the laboratory. Quality Assurance/Quality Control Program,
sealed samples of distilled water accompany environmental samples as they are handled
within the.analyticallaboratory. The distilled water samples are called laboratory blanks
and are analyzed along with the environmental samples. The purpose of blank analysis
is to reveal contamination of the associated environmental samples with chemicals used
in the laboratory. Blank analysis often indicates the presence of volatile organic
compounds commonly used as laboratory solvents (e.g., acetone and methylene chloride).
When analysis of a laboratory blank associated with an environmental sample reveals the
presence of a chemical, the concentration of that chemical in the environmental sample
is reported with an upper case "B" (e.g., 20B parts per billion). .
D = All compounds identified in an analysis at a secondary deletion faction.
E=
J=
Estimated. Laboratory analysis indicates that the contaminant concentration is above the
detection limit, but its value can only be estimated due to instrument signal interference
(i.e., the presence of other chemicals) and/or the concentration is above the upper range
of calibration of the instrument. The accuracy of concentration measurements that are
"Estimated" vary from analysis to analysis. Estimated results are reported as the
numerical value followed by the upper case. "E" (e.g., 70E parts per billion).
Present below detection limit. Laboratory analysis indicates the chemical in question is
present in the sample, but at a level below. the method detection limit. In this case, the
concentration of the chemical can only be estimated. The accuracy of concentration
estimates that are below the method detection limit vary from analysis to analysis. The
. estimated value is reported with an ~pper case ."J" (e.g., 2J parts per billion).
U = Not detected. The sample was analyzed for the chemical in question, but was not
detected. The result is reported as the numerical value of the method detection limit
followed by an upper case "Un (e.g., 5U parts per billion).
The method detection limit for a chemical is specific to the sample analysis performed and is
a function of the analysis method, instrument detection limit, and sample dilution factor. As a
result, the method detection limit reported for a given chemical may vary from analysis to
analysis. For example, non-detect analyses for trichloroethylene may be reported as 5U anc;l
20U for two separate analyses.
SUBSURFACE IN'I'EJtIM REMEDIAL A 110N PLAN
ROCKY FLATS PlANT. OOLDEN. COLORADO
eca,lu-inplf8llM\cvn J'I'f.1q)
FINAL
-------
LIST OF APPENDICES
APPENDIX A-SOn.. SAMPLING RESULTS
APPENDIX B-GROUND-W A TER SAMPLING RESULTS
APPENDIX C-APPLICABLE OR RELEVANT AND APPROPRIATE.
REQUIREMENTS FOR GROUND-WATER CONTAMINANTS
APPENDIX D-GEOLOGIC LOGS
-------
APPENDIX A
SOIL SAMPLING RFSULTS
SUBSURFACE IMIIRA
-------
PREFACE TO APPENDICES (continued)
RADIONUCLIDE AND VOLATILE ORGANIC COMPOUND DATA
The concentration units of radionuclides in soils are reported in pCilgram (g) with the exception
of tritium which is reported in pCiI t due to the analytical procedure. The concentration of VOC
data is reported in micrograms per kilogram (J£gIkg).
Uranium that is reported as the sum of all isotopes (U283-234' U235.23S)' The concentration units
of the radionuclide and volatile organic compound (VOC) data in ground water and surface
water are reported picoCuries per liter (pCilt) and micrograms per liter (J£gIt), respectively.
The reported concentrations of radionuclides in soil and ground water include values that are less
than the corresponding calculated minimum detectable concentration and in some cases, values
less than zero. Negative values result when the measured value for laboratory reagent blank
(i.e., background radioactivity) is subtracted from an analytical result that was measured as a
smaller value than the reagent blank. These resulting negative values are included in any
. arithmetic calculations on the data sit.
Radionuclide concentration data is reported in the form of a :f: b. For a single measurement "a"
is the reagent blank corrected value; for multiple measurement "9" represents the average value
(arithmetic mean). The error term "b" accounts for the propagated statistical counting
uncertainty for the sample and the associated reagent blank at the 95 % confidence level. These
error terms represent a minimum estimate of error for the data.
SUBSURFACE INTERIM ItEAtEJ)IAL A 110N PLAN
Roc:xY PIA 1'5 PlANT. OOLDEN, COLORADO
"IA&\u-inp\fIll8l4\m1.JKf .1Cp
FINAL
-------
SOIL SAMPLING RESULTS
-------
APPENDIX A-I
SOIL SAMPLING RESULTS
RAW DATA
SUBSURFACE IMIIRA
-------
P..e 110.
$011 Boring Vol.tlle Or..nle Results
Mound Aree
Results reported In UB/k.*
wen Oate 1,1,1-Trlch 1,1,2,2'T8tr 1,1,2-Trlch 1,1-0lchlor 1,1-01c:hlor 1,2-01c:hlor 1,2-01c:hlor 1,2-0lchLor c:ls-1,3-01c:h tr.na-1,2-01 trena-1,3-01 2'Chloroethyl
lIu8Ier SlIIJIled loroethene KhLorethene loroeth- oeth- oethene oeth- oethene oproplne hloropropene .c:hLoroethene c:hloropropene Vinyl Ether
...... ....... 0........... ...................... ........... ............ ........... ........... ........... ............ ............ ............. .............
1"3281 3-AUG-81 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 29.00 25.00 U 25.00 U 25.00 U 25.00 U
1"3J81 30'JUL-81 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U
8"3481 Z9.JUL.81 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U
8"3581 21.JUL.81 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U
IM3581 28-JUL-81 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U
B"3681 20-JUL-81 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U
1"3781 11-JUL'87 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U . 25.00 U
811J881 14.JUL.81 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U
well O.te 2-lut- 2-"e.- 4-Methyl'2 Acetone Benzene BrODldIc:hL BrOllOfol'll Br- C.rbon Cuban Tet Chloro Chloro
lI~r ...Ied pent- or_th- ..thene disulfide trec:hlorlde benzene eth-
...... ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
'"3281 3.A1JG'81 50.00 U 50.00 U 50.00 U 99.00 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U
8"3J81 30-JUL-81 50.00 U 50.00 U 50.00 U 130.00 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U
8113481 Z9-JUL-87 50.00 U 50.00 U 50.00 U 210.00 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U
8"3581 21. JUL'81 50.00 U 50.00 U 50.00 U 310.00 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U
8M3581 28. JUL.87 50.00 U 50.00 U 50.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U
1"3687 20.JUL-87 50.00 U 50.00 U 50.00 U 19.00 .I 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U
1"3781 17. JUL-81 50.00 U 50.00 U 50.00 U 48.00 JB 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U
11IJ887 14.JUL.87 50.00 U 50.00 U 50.00 U 86.00 .I, 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U
well . D.te Chlorofol'tl Chloro DlbrC81ChL Ethyl Methyl- Styr- TetrKhior Toluene Tot.1 Trlchloro Vinyl Vinyl
lIu8Ier SIIIJII ed ..th- or_th- 1-- Chloride oeth- Xyl.... eth- Acetate Chloride
....- ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
8M3281 3-AUG'81 25.00 U 50.00 U 25.00 U 25.00 U 9.00 .I 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 50.00 U
1H3J81 ]0. JUl. 81 25.00 U 10.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 50.00 U
8H3481 Z9'JUL.81 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 10.00 .I 25.00 U 25.00 U 50.00 U 50.00 U
8HJ581 27.JUL.S7 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 6.00 J 25.00 U 25.00 U 50.00 U 50.00 U
8M3581 28..IUI. .81 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 50.00 U
811J681 ZO.JUL.81 25.00 U 50.00 U 25.00 U 25.00 U 1.00 .I 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 50.00 U
IM3781 17.JUl.81 25.00 U 50.00 U 25.00 U 25.00 U 11.00 .I, 25.OO.U 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 50.00 U
lIIJ881 14-JUL'87 25.00 U 50.00 U 25.00 U 25.00 U 12.00 .I 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 50.00 U
U-An8'VZed but not detected .I-Present be'ow detection .'I.lt E-Estl..ted V.lus 8"r..ent In b''''
A-Acceptlble with qua'tftcltlona V-Vllld end ecceptlb'e R-ReJected
-------
Page No.
Soil Boring Volatile Organic Result.
Ea.t Trench.. Area
Re.uU. reported In ua/kg*
WeB Dlte 1,1,1-Trlch 1,1,Z,Z-Tetr 1,1,Z-Trlch 1,1-Dlchlor 1,1-Dlchlor 1,Z-Dlchlor 1,Z-Dlchlor '.Z-Dlc:hlor cl.-1.]-DIc:h trane-1.2-DI trane-1.]-DI 2-Chloroethvl
Nlllber SIIIPI ad lorOithane ecMorethane loroethane oeth- oethene oethane oethene opropane hloropropene chloroethene c:hloropropene Vinyl Ether
...... ....... ........... ...................... ........... ............ ........... ........... ........... ............ ............ ............. .............
1217389 26-SEP-89 6U 6U 6U 6U 6U 6U 6U 6U 6U 6U
1217589 17-OCT-89 .i 5 U 5U 5U 5 U 5U 5 U 5 U su su
8218189 06-1OV-89 5 U 5U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5 U
1218189 07-1OV-89 5U 5U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5U
1218189 08-IOV-89 5 U 5 U 5U 5U 5 U 5 U 5 U 5 U 5 U 5U
8218589 10-OCT-89 5U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U
1218589 10-1ICJV-89 6U 6U 6U 6U 6U 6U 6U 6U 6U 6U
1218689 1J-IICJV-89 6U 6U 6U 6U 6U 6U 6U 6U 6U 6U
1218689 14-NOV-89 6U 6U 6U 6U 6U 6U 6U 6U 6U 6U
WeB Dete 2-lutanone Z-He"anone 4-Methyl-Z Acetone Benz- BrOlllOdIc:hI Br_fol'8l Br- Cerbon Cerbon Tet Chloro Chloro
Nllllber IIIIPI ad pentanone orOll8thene _thene dllulflde trec:hlorlde benz- ethene
...... ....... ........... ............. .......... ........... ........... ........... ........... ..........aa ............ ............. ........... ..........
1217389 Z6-SEP-89 12U 12 U 12 U 12 U 6U 6U 6U 12 U 6U 6U 6U 12 U
8217589 17-OCT-89 11U 11U 11U 11 U 5 U 5 U 5U 11u 5U . 5 U 5 U 11 U
8218189 06-1ICJV-89 9U 9U 9U 9U 5 U 5 U 5 U 9 U 5U 5U 5 U 9U
1218189 07-NOV-89 9U 9U 9U 9U 5U 5 U 5U 9U 5 U 5U 5 U 9U
8218189 08-IlO\l-89 10 U 10 u 10 U 10 U 5 U 5 U 5 U 10 U 5 U 5U 5 U 10 U
8218589 10-OCT -89 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U SU 5U 5U 10 U
1218589 10-1ICJV-89 11U 11U 11U 11U 6U 6U 6U 11U 6U 6U 6U 11U
1218689 13-81011-89 12 U 12 U 12 U 12 U 6U 6U 6U 12 U 6U 6U 6U 1Z U
12;8689. 14-NOV-89 11U 11U 11U 11U 6U 6U 6U 11U 6U 6U 6U 11 U .
Well Dlte ChlorofoMl Chloro DlbrCI8IChl Ethvl Methvlene Styrene Tetradllor Toluene Totel Trlchloro Vinyl Vinyl
Nlllber IlIIPlad _th.. orC88thane lenaene Chloride oethene lCyl.... ethene Acetete Chloride
...... ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
1217389 26-SlP~89 6U 12 U 6U 6U ]..1 6U 6U 1 J 6U 6U 12 U 12 U
12175. 17-OC'-89 SU 11U 5 U 5 U "I 5 U 5U 2.. 5U 5U 11U 11U
1218189 06-_-89 5 U 9U 5U 5U 151 5 U 5 U 5 U 5U 5U 9U 9U
1218189 07-NOV-89 5 U 9U 5U 5U "I 5 U 5 U 5 U 5U 5 U 9U 9U
12181. 08-NOV-89 5U 10 U 5 U 5U 11 I 5 U 5 U 5 U 5U 5 U 10 U 10 U
1218589 10-OCT -89 5 U 10 U 5 U 5 U 210 E 5 U 5 U 5 U 5U 5 U 10 U 10 U
1218589 10-1ICJV-89 6U 11U 6U 6U 771 6U 6U 1.11 6U 6U 11U 11U
1218689 1]-1ICJV-89 6U 12 U 6U 6U "I 6U 6U 6 U 6U 6U 12 U 12 U
1218689 14-NOV-89 6U 11 U 6U 6U 14. 6U 6U 1 JB 6U 6U 11U 11U
UaAn8IYled but not detected JaPr..ent belCMI detection 1I.1t E-Eatl..ted Value I-Present In blank
A-Accepui 'lth quellflcatl- V-Valid el'd acceptable R-.eJected
-------
pege No.
Soli 80rlng Voiatlie Organic Reauita
903 Pad Area
.esuita reported In U8/kg*
lieU Dete 1,1,1-Trlch 1,1,2,2-Tetr 1,1,2-Trlch 1,1-0Ichior 1,1-0Ichior 1,2-0Ichior 1,2-0Ichior 1,2-0Ichior cla-1,3-0Ich trans-1,2.01 tr_-1,3-01 2.Chioroethyi
Millibar l811pi ad loroeth- achiorath- ioroeth- oathene oeth- oath- oeth- opropane hioropropene chioroath- chioropropene Vlnyi Ether
...... ....... ........... ...................... ........... ............ ........... ........... ........... a........... ............ ............. .............
1315289 26-OCT-89 5 U 5 U 5 U 5 U 5 U 5 u 5 U 5 U 5 U 5 U
1318889 17-1IOV-89 4 u 4u 4U 4 U 4 U 4U 4 U 4 U 4 U 4 U
IH2287 9-"Ul-87 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U
IH2387 7-"Ul.87 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U
IHZ487 8.M-87 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U
IH2587 18-M.87 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U
8H2687 16-"UL.87 6U 6U 6U 6U 6U 6U 6U 6U 6U 6U
IH2787 6-"U1..87 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U
IH2887 11."U1.-87 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25_00 U
lieU Oate 2-8utanone 2-Hlx- 4-Methyi-2 Acetone 8enz- 8rc-.dlchi 8r_foMl Br- Carbon Cerbon Tet Chioro Chi oro
Millibar SlIIpied pent.oone or088th- 8th- dlauUlde trechiorlde benz- ethlne
........... ............. .......... ........... .........a- ........... ........... ............ ............ ............. ........... ..........
8315289 26-OCT-89 10 U 10 U 10 U 4 " 5 U 5 U 5 U 10 U 5U 5 U 5 U 10 U
8318889 17-1IOV-89 9U 9U 9U 9U 4 U 4 U 4 U 9U 4U 4 U 4 U 9U
8H2287 9-"Ul-87 50.00 U 50.00 U 50.00 U 48.00 "8 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U
8H2187 7."Ul-87 50.00 U 50.00 U 50.00 U 110.00 8 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U
8H2487 8-"Ul-87 50.00 U 50.00 U 50.00 U 30.00 .II. 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U
8H2587 18-JUN-87 50.00 U 50.00 U 50.00 U 110 I 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U
8H2687 16-JUl-87 12 U 12 U 12 U 2] 6U 6U 6U .2 U 6U 6U 6U 12 U
8H2787 6.JUl-87 50.00 U 50.00 U 50.00 U 140.00 I 25.00 U 25.00 U 25.00 U 50.00 u ' 25.00 U 25.00 U 25.00 U
50.00 U
IHZ887 . 11-JUl-87 50.00 U 50.00 U 50.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.oo.u
lieU Oate Chiorofol'l8 Chloro Olbr-hi Ethyi Methyi- Styr- T.trachior Toi- Totai Trlchioro Vinyl Vinyl
Millibar Slllpi ad _th- or088th- lenz- Chloride oeth- Xyl- .th- Acet.t. Chloride
...... ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
1115289 26-OCT-89 5 U 10 U 5 U 5U 17 I 5U 5U 5 U 5U 5 U 10 U 10 U
1118889 17-1IOV-89 4 U 9U 4U 4 U. 12 I 4U 4U 4U 4U 4 U 9U 9U
IH2287 9-JUl.-87 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 50.00 U
IH2387 7-JUl-87 25.00 U 50.00 U 25.00 U 25.00 U 6.00 .I 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 50.00 U
IH2487 8-JUl-87 25.00 U 50.00 U 25.00 U 25.00 U 6.00 .I 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 50.00 U
IH2587 18-JUN-87 25.00 U 50.00 U 25.00 U 11 .I 19.1 25.00 U 110 6.1 60 97 50.00 U 50.00 U
8H2687 16-JUl-87 6U 12 U 6U 6U 20 I 6U 6U 6U 6U 6U 12 U 12 U
IH2787 6-JUl-87 25.00 U 50.00 U 25.00 U 25.00 U 7.00 " 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 50.00 U
IH2887 1]-JUl-87 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 50.00 U
U-Anelyzed but not detected J-Preaent beiow detection iI.lt E-Eatl..ted Vaiue l.present In bin
A-Acceptabt..wlt~ quatlflc.tlona V.V.lld end accept8bl. .-ReJected
-------
Wen Date
Ni818r SlIIIIpt 8d
..-..
.......
1"3087 16-Ml-87
Wen Date
Ni818r SlIIIIpted
...... ..-...
8M3087 16-JUII-87
Wen Date
. Ni818r SlIIIIpt 8d
...... .......
8"3087 16---87
Z-8utlnClM Z-"exlnClM 4-Methyt-Z Acetone
pent-
........... ............. .......... ........... ........... ........... ........... .........a.. ............ ............. ........... ..........
10 U 10 U 10 U 124_Z 1 5 U 5 U 5 U 10 U 5U 5 U 5 U 10 U
Chtorofol'll eIItoro Dlbr08OC:ht Ethyt Methytene Styrene Tetrechtor Totuene Tot.t Trlchtoro Vlnyt Vlnyt
_thane orC8ethane 8enzene Chtorlde oethene Xytenes ethene Acetate Chtorlde
........... ............. .......... ........... ........... ........... ........... .......1:81:.. ............ ............. .........=a ..........
5 U 10 U 5 U 5U 3t.68 5 U 5 U 5 U 5 U 5 U 10 U 10 U
Solt Boring Votatlte Or88nlc ...utts
903 Pild Area
Resutts reported In U8/k,*
1,1,1-Trlch
toroethane
" t,Z,Z-Tetr
achtorethane
1,1,Z-Trlch 1,1-Dlchtor t,t-Olchtor t,2-0Ichtor t,2-Dlchtor
loroethane oethane oethene oeth.ne oethene
...........
......................
........... ............ ........... ...........
5 U
5U
5U
5 U
5 U
5 U
8enzene
8romodlcht
or_thane
8rC80fol'll. 8rC80
_thane
cllt oro
ethane
U-An8tyz8d but not detect8d J-Pr..ent betow detection U.lt E-E8tl_ted Vatue
A~cceptable with quatlflcatlons V.Vatld and acceptabte R.ReJect8d
*.'87 data report8d on ...i-...ltht besls; '89 data report8d on dry-...ltht basis
P.8e .0.
2
t ,2-0Ichtor cls-t,3-0Ich tr_-t,Z-OI trans-t,]-Ol Z-Chtoroethyt
oprop8l18 htoropropene chtoroethene chtoropropene Vlnyt Ether
........... ............ ............ ............. .............
5U 5 U 5 U 5 U
C.rbon
disulfide
Cerbon Tet
tr.chtorlde
Chtoro
benI-
-------
pege 110. J
Soil Boring Voletlle Organic Re.ult.
Eest Trenche. Are.
. Resutt. reported In Ul/kg*
weu Oete 1,1,1-Trlch 1,1,2,2-Tetr 1,1,2-Trlch 1,1-0Ichtor 1,1-0Ichlor 1,2-0lchlor 1,2-0lchlor 1,2-0lchlor cl.-1,J-Olch tr_-1,2-01 trens-1,J-01 2-Chloroethyt
IIlIIbIr SlIIpled toroethene IcMor.thene toroethene oethene oethene oethene oethene opropene Moropropene cMoroethene chtoropropene Wlnyt Ether
...... ....... _a....... ...................... ........... ......~..... ........... ........... ........... ............ ............ ............. .............
1H4287 21-AUG-87 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U
IH4587 04-,Mj-87 6.00 J 25.00 U 25.00 U 25.00 U 25.00'U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U
IH4587 04.5EP-87 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U
IH4587 08-SEP-87 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U
1114487 09.I£P-87 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U
IH4587 28-AUG-87 25_00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25_00 U 25.00 U 25.00 U 25.00 U
IH4587 J1-AUG-87 25.00 U 25.00 U ' 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U
1114681 J-SEP-81 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U
IH4687 02-SEP-87 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U
weu Oete 2-Butanone 2-"e.- 4-Methyt-Z Acetone Benzene BrC80dlcht Br_fo... Bromo Cerbon Cerbon T et Chtoro CMoro
IllIIber SlIIpted pentlnOn8 or-thene _thene dllut fide trecMorlde benzene ethene
...... ....... ........... ............. .......... ........... a.......... ........... ..a........ ..a......... .....a...... ............. ........... ..........
BH4287 21-AUG-87 50.00 U 50.00 U 50.00 U 78.00 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U
IH4587 04-"UII-87 150.00 50.00 U 50.00 U JJO.oo 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U
8H4587 04-IEP-87 120.00 50.00 U 50.00 U Joo.oo 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U
BH4581 08-SEP-81 50.00 U 50.00 U 50.00 U 150.00 B 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U
IH4487 09-UP-87 50.00 U 50_Go U 50.00 U 160.00 B 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U
1"4587 28-AUG-87 50.00 U 50.00 U 50.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U
IH4581 J1.AUG-81 50.00 U 50.00 U 50.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U
IH4681 J-SEP-81 50.00 U 50.00 U 50.00 U 210.00 1 25.00 U 25.00 U 25.00 U 50.00 u ' 25.00 U 25.00 U 25.00 U 50.00 U
IH4687 02-SEP-87 50.00 U 50.00 U 50.00 U 50.CIQ U 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.oo'U
ueU Oete Chtorofol'll Chloro Olbr08OChl Ethyl M,thyl- Styrene ',trechlor Totuene 'otel Trlchtoro Vinyl Wlnyt
IIUI8I8r IlIIpled _thene orC88thene lenz- Chtorlde oeth- Kyl... eth- Acetete Chloride
..-. ...-.. ........... ............. .......... ........... ........... ........... ........... ............ ............ ....................................
IH4287 21-AUG-87 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 50.00 U
IH4587 04-.IUII-87 25.00 U 50.00 U 25.00 U 25.00 U 14.00 J 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 50.00 U
1114387 04-IIP-87 25.00 U 50.00 U 25.00 U 25.00 U 8.00 J 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 50_00 U
1H4587 ,08-IIP-87 25.00 U 50.00 U 25.00 U 25.00 U 17.00 "I 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 50.00 U
IH4487 09-IIP-87 25.00 U 50.00 U 25.00 U 25.00 U 7.00 J 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 50.00 U
IH4587 28-AUG-81 25.00 U ~O.oo U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 50.00 U
IH4587 J1-AUG-87 25.oo,U 50.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 50.00 U
1114687 J-IEP~87 25.00 U 50.00 U 25.00 U 25.00 U 5.00 J 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 50.00 U
IH46I7 G2-Up.87 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 50.00 U
U-An8lyzed ~t not detected "aPr..ent beiow detection ...It E-E.tl..ted VIIUt l.pre.ent In btn
A-Acceptebte Mlth quellflcetlona V.Velld end eccepteble .-.eJected
-------
Pap Mo. 2
5011 80rlng Volatlla Or88n1~ Re.ult.
E..t Trench.. Ar.a
".ul t. reported In ",/kg-
".U . Data 1,1,1-Trlch 1,1,2,2-Tatr 1,1,2'Trlch 1,1-0lchlor 1,1-0lchlor 1,2-0lchlor 1,2'OI~hlor 1,2-0lchlor cl.-1,3-0Ich trena-1,Z-OI trane-1,3-01 Z-Chloroethyl.
NUlliber l8lllpleel lor08th- achlor.th- lor08th- oethln8 oeth- oeth- oeth- opropane hloropr~ chloroeth- chloropropene Vinyl Ether
....... ....... ........... ...................... ........... ............ ........... ........... ........... ............ ............ ............. .............
IZ1878P 15'1OV-" 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 u
821878P "'IOV.89 5 U 5 U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5 U
8218989 27'1O¥-89 5U .5U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U
131978P 18'JAI-90 5U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U
IM3981 12'U'81 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 14.00 J 25.00 U 25.00 U 25.00 U 25.00 U
8H4087 13-U-81 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U
IH4181 1'-AUG'8' 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U
IH4287 18-AUG-87 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25_00 U 25_00 U 25.00 U 25.00 U 25.00 U
IH4281 19-AUG-87 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U
".U Oat. 2'8utanone 2'HexlnOM 4'Methvl'2 Acetone 8enz- 8r08ldIchi 8rC80fol'll 8rC80 Carbon Carbon T.t Chi oro Chi oro
Nl.IIIber S8IIIpi eel pent- or..thane -thane dllulflde trachlorlde benz- .thane
...... ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
821878P 15.NQV'89 11U 11U 11U 11U 5 U 5U 5U 11 U 5u 5 U 5 U l1u
821878P 16-1OV'89 10 U 10 U 10 U 10 U 5 U 5 U 5U 10 U 5 U 5 U 5 U 10 U
1218989 21-1'011-89 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U 5 U 5 U 10 U
8319789 18-JAI-90 11 U 11 U 11U 10 J 5 U 5 U 5 U 11 U 5 U 5 U 5 U 11U
8"3981 12-U-87 40.00 J 50.00 U 50.00 U 79.00 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U
IH4081 13'AUG.81 50.00 U 50.00 U 50.00 U 140.00 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U
1H4181 1'-AUG.87 50.00 U 50.00 U 50.00 U 150_00 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U
"-AUG-87 50.00 U 50.00 U 50.00 U 71.00 25.00 U 25.00 U 25.00 U 50.00 u ' 25.00 U 25.00 U
1"4287 25.00 U 50.00 U
IH4281 ., 19-AUG-81 50.00 U 50.00 U 50.00 U 110.00 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.oo'u
lieU Dlt. Chlorofol'll Chiaro DlbrC80ChI Ethyl MethyI- Styr- T.trachlor ToI- Total Trlchloro Vinyl . Vinyl
Millibar ",Ied _th- or_th- lenz- Chloride oath- XVl- 8thene Ac.tate Chloride
.._a. __a... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
1218119 15'1OV.89 5 U nu 5 U 5 U 24 . 5 U 5U 5U 5U 5 U 11U 11U
1218119 16'1IO¥.89 5U 10 U 5U 5U 7. 5 U 5U 5U 5 U 5 U 10 U 10 U
1218989 27-1OV-89 SU 10 U 5 U 5 U 5 U 5U 5U 5U 5U 5U. 10 U 10 U
8319119 "-"AI'90 SU 11U 5 U 3 J 9 5U 5 U 3 J su 5 U 11U 11U
IM3987 12'U.87 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 50.00 U
IN4087 13-U-87 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 50.00 U
1H4187 17-AUG-87 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 50.00 U
8"4281 18'AUG-87 25.00 U 50.00 U 25.00 U 25.00 U 25.00 t.i 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 50.00 U
IN4281 19-AUG'81 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U Z5.oo U 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 50.00 U
U-Anllyzed but not detKted ".Pr..ent belCMt detKtfon If.lt E-E.tl..ted Value ..Pre.ent In bt...
A-A~~ept8bl8 with quallflcltlona V-Valid and acceptabl. .".JKteel
-------
P.8. 110. 5
5011 Boring Volatlte Or8anle Reault.
Eaat Trenchea Area
Reaulta reported In U8/k8-
Well O.te 1,1,I.Trleh ;,1,2,2.Tetr 1,1,2.Trleh 1,1-0Ichtor 1,1-0Ichlor 1,2-0Ichlor 1,2-0Ichlor 1,2-0Iehlor ela-I,3-0Ich tr_.1,2-01 tr_-1,3-01 2-Chloroathyl
lllIIIbar 1..1 ad loroath- ac:hloreth- loroath- oath.ne oethene oath- oethene opropana hloropropene chloroathene ehloropropene Vinyl Eth.r
...... ....... ........... ...................... ........... ...aD....... ........... ........... ........... ............ ............ ............. .............
8H5187 22-IEP-87 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 7.00 J 25.00 U 25.00 U 25.00 U 25.00 U
BH5287 22-IEP-87 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 7.00 J 25.00 U 25.00 U 25.00 U 25.00 U
BH5J87 11.5EP-87 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U
B"5387 14-5EP-87 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 8.00 J 25.00 U 25.00 U 25.00 U 25.00 U
B"5487 15-IEP.87 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 120.00 25.00 U 25.00 U 25.00 U 25.ooU
1"5487 16-IEP-87 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 8.00 J 25.00 U 25.00 U 25.00 U .25.00 U
B"5487 18.IEP-87 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 46.00 25.00 U 25.00 U 25.00 U 25.00 U
B"5487 21.5Ep.81 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 22.00 J 25.00 U 25.00 U 25.00 U 25.00 U
B"5587 '5-IEP-81 25.00 U . 25.00 U 25.00 U '25.00 U 25.00 U 14.00 J 25.00 U 25.00 U 25.00 U 25.00 U
wall Date 2-8utanone 2-"e...- 4-K8thyl-2 Acetone 8enzene Br_Ucht Br_fol"ll Br- Carbon Carbon Tet chi oro Chi oro
llllllber 1..1 ed pentenona or_th.ne _th- dlaulflde trachlorlde benzene eth-
...... ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
B"5181 22.5EP-81 50.00 U 50.00 U 50.00 U 300.00 8 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U
BH5281 22-5EP-81 50.00 U 50.00 U 50.00 U 43.00 JB 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U
BH5381 11-5EP-81 50.00 U 50.00 U 50.00 U 15.00 1 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U
8"5381 14-IEP.81 50.00 U 50.00 U 50.00 U 900.00 1 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U
8"5481 15-IEP.87 50.00 U 50.00 U . 50.00 U 300.00 1 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U
8H5481 16-IEP-81 50.00 U 50.00 U 50.00 U 210.00 1 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U
1"5481 18-IEP-81 50.00 U 50.00 U 50.00 U 1600.00 8 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U
IH5481 21-IEP-87 50.00 U 50.00 U 50.00 U 190.00 1 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U
1"5581 . 15.IEP-81 50.00 U 50.00 U 50.00 U 810.00 1 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.oo'U
Walt O.te Chlorofol"ll Chloro OlbrC8lChI Ethyl Methylene Styr- Tetrachlor Toluene Tot.l Trlehloro Vinyl Vinyl
llllllbar ...led 8th- orGl8th- lanz- Chloride oath- .yl... eth- Acetate Chloride
--.. ..-... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
1"5187 22-IEP-81 25.00 U 50.00 U 25.00 U 25.00 U 6.00 JI 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 50.00 U
IN5281 22-1&'-81 25.00 U 00.00 U 25.00 U 25.00 U 6.00 JI 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 50.00 U
IN5387 "-IEP-81 25_00 U 50.00 U 25.00 U 25.00 U ".00 " 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 50.00 U
1"5387 14-I&P-87 25.00 U 50.00 U 25.00 U 25.00 U 10.00 J8 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 50.00 U
1"5487 15.IEP-87 5.00 " 50.00 U 25.00 U 25.00 U 1.00 J8 25.oo'u 25.00 U 25.00 U 13.00 J 25.00 U 50.00 U 50.00 U
8"5487 16-IEP-81 25.00 U 50.00 U 25.00 U 25.00 U ".00 J8 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 50.00 U
1"5487 18-IIP-81 25.00 U 50.00 U '25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 50.00 U
8"5487 21-SEP-81 25.00 U 50.00 U 25.00 U 25.00 U 14.00 JI 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 50.00 U
IH5581 15.IEP-81 25.00 U 50.00 U 25.00 U 25.00 U 6.00 JI 25.00 U 25.00 U 25.00 U 5.00 J 25.00 U 50.00 U 50.00 U
U-Anelyzed but not detectad J.pre.ent balOll detection Uliit E-E.tl..ted Velue l.preaent In btank
A-Aceapt8ble with quallfleatlone V-Valid 8I'td Keapt8ble R"eJected
-------
hie No. 4
Soil lorlng Vol8tlle Org8nlc Result~
Esst Trenches Are8
Results' reported In Yl/kg*
Weu Data 1,1,1-Trlch 1,1,2,2-Tetr 1,1,2-Trlch 1,1-0lchlor 1,1-0lchlor 1,2-Dlchlor 1,2.Dlchlor 1,2-0Ichtor cts.1,]-Olch tr8ns-1,2-DI tr8ns.1,]-Ol 2-Chtoroethyl
..
Numer S8IIpIIid loroeth- 8Chtor.th- loroeth- oeth- oethene oeth8n8 oethane opropan8 htoropr~ chtoroethene chloropropene Vinyl Ether
..._a ....... ........... ...................... ........... ............ ........... ........... ........... ............ ............ ............. .............
IH4787 1I-SEP-17 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U
IH4787 14-SEP-17 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 12.00 J 25.00 U 25.00 U 25.00 U 25.00 U
IH4787 15-SEP-17 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 51.00 25.00 U 25.00 U 25.00 U 25.00 U
IH4887 16"SEP-17 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 1.00 J 25.00 U 25.00 U 25.00 U 25.00 U
IH4887 17'SEP'17 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U
IH4987 11.SEP-17 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 2].00 J 25.00 U 25.00 U 25.00 U 25.00 U
IH4987 21-SEP.17 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 15.00 J 25.00 U 25.00 U 25.00 U 25.00 U
8.5087 17-SEP-17 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U
1.5117 18-SEP'87 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U
Weu Oat. 2-lut- 2.Hell- 4-Methyl-2 Acetone Benzene BrOllOdI cht BrOllOfo... 'Brcno Carbon Carbon Tet Chtoro Chtoro
Numer SIIIIpI ed pent- or-thane _thane disulfide trachtorlde benzene eth-
..-.. ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
IH4787 1I'SEP-17 50.00 U 50.00 U 50.00 U 77.00 1 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U
IH4787 14-SEP-17 50.00 U 50.00 U 50.00 U 410.00 B 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U
&H4787 15'SEP'87 50.00 U 50.00 U 50.00 U 190.00 1 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50,00 U
IH4887 16-SEP-87 50.00 U 50.00 U 50.00 U 100.00 1 ' 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U
IH4887 17-SEP-87 50.00 U 50.00 U 50.00 U 220.00 1 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U
BH4987 11-SEP-17 50.00 U 50.00 U 50.00 U ]00.00 1 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U
1"4987 21-SEP'17 50.00 U 50.00 U 50.00 U 91.00 B 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U
1.5087 17-SEP-87 50.00 U 50,00 U 50.00 U 1000.00 1 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U
1.5187 ,18'IEP-87 50.00 U 50.00 U 50.00 U 1700.00 1 '25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00'U
Weu Oat. Chlorofol'll Chloro Dlbr080ChI Ethyl Methylene Styrene Tetr8Chtor Toluene Tot.1 Trlchloro Vinyl Vinyl
Numer S8IIpIIid Mth- or_th- 18Nene Chloride oethene .,I_s .thane Acet.t. Chloride
--- ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
IH4787 n'IEP-17 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 50.00 U
IH4781 14-IEP-17 25.00 U 50.00 U 25.00 U 25.00 U 12.00 JI 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 50.00 U
IH4787 15'lIp.87 25.00 U 50.00 U 25.00 U 25.00 U 12.00 JI 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 50.00 U
IH4887 16-IEP-17 25.00 U 50.00 U 25.00 U 25.00 U 11.00 JI 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 50.00 U
IH4881 1f-SEP-87 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 50.00 U
IH4987 18-SEP-lf 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 50.00 U
IH4987 21-SEP-87 25.00 U 50.00 U 25.00 U 25.00 U 6.00 JI 25.00 U 25.00 U 25.00 U 25'.00 U 25.00 U 50.00 U 50.00 U
'1.5087 17-5£P'87 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 50.00 U
1.5117 'I-SEP'17 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.ODU 25.00 U 50.00 U 50.00 U
U-An8lyzed but not detectlld J.Present below detection 1I.lt E-Estl..ted Value B.present In blank
A-Acceptable Mlth qualifications V-V.lld end acceptable a.aeJectlid
-------
SOIL SAMPLING RESULTS
-------
P8118 110.
6
Solt Boring Votatlte Orlenlc .asutts
Ea.t Trenches Ar.a
Results reported In U8/kS*
Yell Data 1.1.1-Trlc:h
IIl8ber Slllllpt ed toroeth-
....- ....... ...........
1"5611 10-SEP-87 25.00 U
1"5687 11-SEP-87 25.00 U
lie" Oat.
IIl8ber SIIIIpI ed
...... .......
8H5681 10-SEP-81
8"5611 11-IfP-87
lie" Date
IIl8ber SlIIIpled
......
8"5687 10-SEP-87
8"5611 11-$£P-81
1,1,2,2-Tatr
echloreth-
1.1.2-Trlc:h 1.1'Dlc:hlor 1.1'DIc:htor
toroethane oethene oethene
1,2'DIc:hlor 1,2'DIc:hlor
oethene oeth-
1.2'DIc:hior cls'1.3'Dlch trana.1.2'DI trena'1.3'DI 2'Chloroethyl
opropene h loropropene chloroethene chloropropene Vinyl Ether
........... ............ ..........- ............. .............
25.00 U 25.00 U 25.00 U 25.00 U
25.00 U 25.00 U 25.00 U 25.00 U
......................
........... ............ ........... ...........
25.00 U
25.00 U
25.00 U
25.00 U
25.00 U
25.00 U
25.00 U
25.00 U
25.00 U
25.00 U
2-lut- 2-"e.- 4-Methyl-2 Acetone
pent-
........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
50.00 U 50.00 U 50.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U
50.00 U 50.00 U 50.00 U 74.00 I 25.00 U 25.00 U 25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 50.00 U
Chtorofol'll Chloro Dlbr~hl Ethyl Methytene Styrene Tetrechtor Toluene Totat Trlchtoro Vlnyt Vinyl
.th- or088thene Benl- Chloride oath- Xytenes .thene Acetat. Chloride
........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........c.. ..........
25.00 U 50.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 50.00 U
25.00 U 50.00 U 25.00 U 25.00 U 5.00 " 25.00 U 25.00 U. 25.00 U 25.00 U 25.00 U 50.00 U 50.00 U
8enz-
Br~lcht
or_th-
Chloro
eth-
8rll8lO'o1'8
Carbon
disulfide
8r-
-th-
Carbon Tet
tr.chlorlde
Chloro
benzene
U.An8lyzed but not detected "-Pr..ent below detection tt.lt E-Eatl.ted V.tue
A-Acceptable Mlth quatlflcatlons V-Vatld end ecceptabte .-.'Jected
e_187 dete reported on Met-...Ight bul.; 189 d8ta reported on dry-...Ight bul.
-------
Palle 110.
Soil Boring Total Metal Resultl .
Mound Area
Relultl reported In -elkll**
"aU Date Ah..l.... Antl~ Arlenlc Barlua BerylllUl Cachh.. Calclua CellUi ChrOllh. Cobalt Copper Iron Lead Llthh..
lI....r 18IIPled (At) (At) (AI) (Ba) (Be) (Cd) (Ca~ (CI) (Cr) (Co) (Cu) . (fe) (Pb) (ll)
...... ....... ........ ......... ......... ......... ......... ....... ....... ....... ........ ....... ....... ....... ....... .......
1113287 3-AlJG-87 4720 12.00 U 8.4 73 1.00 U 1.00 U 32400 4.1 10.00 U 7.6 9240 7.1
BH3387 :SO-oWl-87 23200 12.00 U 11 76 1.00 U 3.7 25800 13 10.00 U 5.4 18900 5.2
BH3487 29-JUl-87 12600 12.00 U 7.3 89 1.00 U 1.1 116000 6.5 10.00 U 5.00 U 10300 5.1
BH3587 27-JUl-87 8300 12.00 U 13 50 1.00 U 1.00 U 779DO 8.3 10.00 U 5.00 U 7130 3.5
IM3587 28-JUl.87 11900 12.00 U 7.4 54 1.00 U 2.2 7600 13 10.00 U 8.2 17500 3.7
IH3687 20-JUl-87 9020 12.00 U 5.3 100 1.00 U 1.3 136000 2.00 U 10.00 U 5.00 U 7760 9.4
IH3787 17-JUl-87 9580 12.00 U 7.5 57 1.00 U 3.2 15800 11 10.00 U 6.4 11600 5.0
IH3887 14-JUl-87 8580 12.00 U 9.6 59 1.00 U 2.2 48600 2.00 U 10.00 U 5.00 U 7160 7.5
lieU Oata M8gnes lua Hang_a Mercury Mot ybderuII IIlcket Pota..lua Setenlua SHyer Sodlua Strontlua Thall h.. Tin Vanedlua ZInc:
lI....r S8I1Ipl ed (Mg) (MIl) (HII) (Mo) (III) (K) (Se) (A8) (lIa) (Sr) (Tt) (Sn) (V) Un)
...... ....... ........ ......... ......... ......... ......... ......... ....... ....... ......C8 ....... ......... ....... ..a...... .....a.
BH3287 3-AlJG-87 1440 230 0.13 10 1000 U 1.00 U 2.00 U 1000 U 30 2_00 U 26 46
IH3387 30-JUL-87 5260 146 0.1 U 8.0 1750 1.00 U 2.00 U 1000 U 24 2.00 U 21 34
BH3487 29-JUL-87 2900 113 0.1 U 8.00 U 1230 1.00 U 2.00 U 1000 U 58 2.00 U 18 18
BH3587 27-JUl-87 1880 78 0.1 U 8.7 1000 U 1.00 U 2.00 U 1000 U 43 2.00 U 17 12
IH3587 28-oWL-87 3030 162 0.1 U " 1020 1.00 U 2.00 U 1000 U 36 2.00 U 33 31
IH3687 2O-JUl-87 3160 100 0.1 U 8.00 U 1100 1.00 U 2.00 U 1000 U 120 2.00 U 13 20
BHJ787 17-JUl-87 2640 160 0.1 U 15 1470 1.00 U 2.00 U 1000 U 32 2.00 U 19 31
IH3887 14-JUL-87 1890 122 0.1 U 11 1000 U 1.00 U 2.00 U 1000 U 36 2.00 U 12 19
a.Val.. t... th... Contr8Ct Requlrad Detection LI.1t (CRDL) but Ireeter th... Inatrll88nt Detection LI.lt (IOU
*-oupllcata ....tyala not within control tl.lta
U8wlyzed ." not detected J.pr..ent below detection ll.tt E8fltl_ted Val..
-------
Palle 110.
Soli lorlng Totai Metai RelUits
903 Pad Area
Reaui ts reported In IIIII/kg..
waH Data Ai&llll1lll AntlMnV Arsenic larl&ll leryH 1&11 Cachl&ll Caicl&ll Cea h.. Chromh.. Cobai t Copper Iron lead llthl&ll
IIUIIIb8r S8IIpi ed (At) (At) (As) (Ia) (Ie) (Cd) (Ca) (C.) (Cr) (Co) (Cu) (Fe) (Pb) (ll)
...... ....... ........ ......... ......... ......... ......... ....... ....... ....... ........ ....... ....... ....... ....... .......
1315289 26-OCT-89 5890 12.0 U . 3.] ]9.9 U 1.0 U 1.0 U 13900 200 U 16.0 10 U 7.0 6740 ].5 20.0 U
1]18889 17-1IOV-89 5920 ,11.2 U 2.5 50.8 0.94 U 0.94 U 64800 468U 5.9 9.4 U 6.7 5550 2.2 18.7 U
1"2287 9-JUL-87 14000 12.00 U 2.6 61 1.00 U 1.4 70100 5.8 10.00 U 5.00 U 10200 1.6
1"2387 7-JUl-87 12000 12.ooU 6.4 212 1.00 U 3.2 3650 18 10.00 U 19 16800 7.5
IH2487 8-JUl-87 4040 6.] U 11 .035 1.140 1.140 U 1600 3.64 4.54 U 4.54 U 4020 16.9 11.3 U
1"2587 18-JlII'87 17400 12.00 U 5.4 119 1.00 U 4.6 4220 20 10.00 U 9.5 18500 12.3
1"2687 16-JUl-87 16300 6.8 U 17.8 216 1.22 U 1.22 U 24700 15.6 5.61 19.8 12500 22.8 12.71 .
1"2787 6.JUL.87 18900 12.00 U 8.7 100 1.00 U 5.4 2840 19 10.00 U 8.2 16100 8.0
1112887 13-JUl-87 6930 12 U 3.5 99 1.00 U 1.6 4560 6.7 10.00 U 5.00 U 5660 9.9
IHJ087 16-JlII-87 5320 5.6 U 7.88 66 1 U 1 U 79000 6.2 4 u 6.4 6040 5.18 10 U
waH' Date Maanea I &II M8"II_.e Mercury MOi~ IIlckei pota.sl&ll SeienlUl SHver Sodh.. Strontl&ll ThaH 1&11 Tin Van8dl&ll Zinc
IIUIIIb8r S8IIpied (Mg) (Mg) (lIg) (No) (III) (I() (5e) (All) (lIa) (5r) (Tt) (5n) (V) (Zn)
...... ....... ........ ......... ......... ......... ......... ......... ....... ....... ........ ....... ......... ....... ......... .......
1315289 26'OC' -89 1550 144 0.10 U 20.0 U 11.9 998U 1.0 U 2.0 U 998U 200 U 2.1 U 20.0 U 17.4 29.4
1318889 17-1IOV-89 1900 72.8 0.10 U 18.7 U 7.7 936 U 0.84 U 1.9 U 936 U 71.5 1.7 U 18.7 U 21.9 23.4.
1112287 9-JUl'87 3600 109 0.18 8.00 U 1140 1.00 U 2.00 U 1000 U 74 2.00 U 16 18
1"2387 7-JUl-87 3180 1080 0.19 16 1930 1.00 U 2.00 U 1000 U 14 J 2.00 U 40 37
1"2487 8.JUl-87 752 39.3 .10 U 5.45 U 649 .]5 U .46 U 175 5.]2 .48 U 9.32 10.9
1"2587 18-JlII-87 3400 246 0.1 U 9.8 3020 1.00 U 2.00 U 1000 U 20 U 2.00 U 35 49
3700 169 .10 U 13.4 1635 .31 U .51 U 427 ' 87.6 .530 U 50.5
1112687 16.JUL-87 48.5
1112787 6. JUl'87 3350 356 0.1 U 10 2320 1.00 U 2.00 U 1000 U 12.2 J 2.00 U 39 40
1112887 13-JUL-87 1270 ]5 0.1 U 8.00 U 1000 U 1.00 U 2.00 U 1000 U 17 J 2.00 U 11 30
IH3087 16-M-87 1680 117 .10 U 9 1022 .4 U .4 U 232 70.2 .44 U 12.4 12.2
I-Vaiue teaa than Contract Required Detection Lt.lt (CRDl) but greater than I..t~t Detection Lt.lt (lDl)
*-ouptlcate anatysl. not within controt 11.lts .
U-AnaIYled by not detected J.preaent betow detection tt.lt E-Estt_ted Vatue
-------
P811e 110. 2
Soli 80rlng Tot8i Met8i Resuits
E81t Trenche. Are.
Results reported In -e,kll..
vell D8te Al..l... Ant 18Of'I)' Ar.enlc B8rf.. Beryllium cechfua Calcf.. CelfUII ChromfUII Cobait Copper Iron Leed Llthl..
IlulMr SlIIpied (At) (At) (A.) (B8) (Be) (Cd) (C.) (C.) (Cr) (Co) (cu) (fe) (Pb) (LI)
...... ....... ........ ......... ......... ......... ......... a..a... ....... ....... ........ ....... ....... ....... ....... 8......
8H4287 18-AUG-87 9570 12.00 U 15 69 1;00 U 2.2 52700 14 10.00 U 11 8420 3.9
IH4287 19-AUG-87 4900 12.00 U 9.3 46 1.00 U 1.00 U 2160 4.0 10.00 U 7.8 6000 8.0
IH4287 21-AUG-87 1700 12.00 U 9.0 40.00 U 1.00 U 1.00 U 1000.00 3.2 10.00 U 5.00 U 3470 1.7
IH4387 04-.1111-87 4660 12.00 U 2.2 40.00 U 1.00 U 1.7 3216 17 10.00 U 5.9 7040 1.6
8H4387 04'SE,-87 6420 12.00 U 2.8 45.5 1.00 U 2.2 79300 2.4 10.00 U 5.00 U 8130 2.7
IH4387 08-SEP-87 6400 12.00 U 2.00 U 40.00 U 1.00 U 2.8 158' 34 10.00 U 6.5 8010 2.4
8114487 09-SEp.87 9070 12.00 U 4.9 40.00 U 1.00 U 2.1 1830 '.0 10.00 U 10 "00 6.4
IH4587 31'AUG'87 10300 12.00 U 10 40 1.00 U 3.4 58800 12 10.00 U 5.00 U 15700 6.4
IH4687 2-5E"87 8830 12.00 U 3.0 82.8 1.00 U 2.3 11684 16 10.00 U 8.1 9650 4.1
IH4687 ]-5EP-87 7960 12.00 U 2.0 151.4 1.1 6.2 4409 8.6 11 21 42700 8.8
IH4787 "-SEP-87 9440 12.00 U 11.7 68 1.00 U 1.4 108000 4.8 10.00 U 5.00 U 8900 4.6
8H4181 14'SEP'81 6160 12.00 U 4.3 40.00 U 1.00 U 1.00 U 1640 16 10.00 U 8.2 9930 4.8
8H4187 15'SE,.87 5640 12.00 U 3.4 58 1.00 U 1.00 U 4000 6.9 11.8 5.00 U 5950 7.6
IH4887 16-SE'-87 12700 12.00 U 22.8 56.6 1.00 U 2.4 109000 9.3 10.00 U 5.00 U 10200 5.4
Well D.te Me.,.. f.. M8"11_.e Mercury Mol ybdef1UI IIfckel Pot...h.. SelenfUIII Silvar Sodl.. Strontf.. ThaU h.. Tin Vaned I.. Zinc'
Nlilber SlIIpled (MtI) (Mil) (HI) (Mo) (III) (1:) (Se) (All) (118) (Sr) (Tl) ($n) (V) (In)
...... .....~. ........ ......... ......... ......IIi.. ......... ......... ....... ....... ........ ....... ......... ....... ......... .......
IH4281 18-AUG.87 2240 121 0.1 U 16 1240 1.00 U 2.00 U 1000 U 54 2.00 U 24 17
IH4287 19'AUG-87 1000.00 156 0.1 U 8.00 U 1000 U 1.00 U 2.00 U 1000 U " .I 2.00 U 21 27
8H4287 21-AUG-81 1000.00 ]4 0.1 U 8.00 U 1000 U 1.00 U 2.00 U 1000 U 20.00 U 2.00 U " ,2
IH4387 04-.1111-87 1171 107 0.1 U 8.00 U 1000 U 1.00 U 2.00 U 1000 U 20.00 U 2.00 U 14 5.1
IH4387 04-SE'-87 1984 50 0.1 U 8.00 U 1000 U 1.00 U 2.00 U 1000 U 27 2.00 U 14 4.00 U
IH4387 08-SE"87 1296 92 0.1 U 8.00 U 1000 U 1.00 U 2.00 U 1000 U 20.00 U 2.00 U 15 9.4
IH4487 09-SEP-87 1520 145 0.1 U 8.00 U 1000 U 1.00 U 2.00 U 1000 U 20.00 U 2.00 U 15 6.7
IH4587 31-MlG-87 S020 101 0.1 U 8.00 U 1000 U 1.00 U 2.00 U 1000 U 48 2.00,U 27 20
IH4687 Z-SEP-87 1581 249 0.1 U 10 1063 1.00 U 2.00 U 1000 U 20.00 U Z.OO U Z1 9.5
IH4687 5-11'-87 1798 584 0.18 40 1000 U 1.00 U 2.00 U 13n ,26 Z.oo U 51. 124
IH4187 11-11'-87 2640 S7 0.1 U 8.00 U 1000 U 1.00 U 2.00 U 1000 U 79 2.00 U 18 8.5
IH4787 14-IIP-87 1850 138. 0.1 U 9.7 1140 1.00 U 2.00 U 1000 U 20.00 U 2.00 U 16 18.8
IH4187 1S-SEP-87 1530 73.1 0.1 U 26.8 1000 U 1.00 U 2.00 U 1000 U 33.7 2.00 U :2.6 33.4
IH4887 16-.'-87 5110 63.6 0.1 U 11-9 1200 1.00 U 2.00 U 1000 U 76.8 2.00 U 2S.1 21
I.V81ue I... then Contr.ct .equlnd Detection LI.lt (CRDU but gre.ter then lnatr_t Detection LI.lt (IOU
8-oupllclte InIlysl.'not Mlthln control 11.lt.
U.An8iyzed by not detected J.'r..ent below detection 11.lt ElI£ltl.ttd Vllue
-------
Pa.e 110.
5011 lorlng Total Metal ..Iultl
Eelt Trenches Are.
"Iul tI reported In I18/k.**
Well Dat. AlWilrua Ant IIIOn)' Arsenic larlWi leryll hll cecal WI CetclWl CeslWl Chrcallll Cabel t Copper Iron Leld Llthllll
IIUlllber IlIIIIpled (AI) (AI) (AI) (B8) (Ie) (Cd) (Ca) (CI) (Cr) (Co) (Cu) (Fe) (Pb) (LI)
...... ....... ...._a. ......... ......... ......... .......08 ........ ....... ........ ......8 ....... ....... ....... 811..... .
1217389 26'SEP'89 9050 13.0 U 4.7 110 1.1 U 1.1 U 143000 216 U 7.1 10.8 U 5.4 U 6130 4.7 21.6 U
1217589 17-OI:T-89 9780 15.] 4.8 52.7 1.1 U 1.1 U 1600 214 U 111.6 10.7 U 6.0 8240 11.1 21.4 U
1218189 06-1IQV'89 7920 11.6 U 2.2 U 99.2 1.1 0.96 U 75600 482 U 8.2 9.6 U 13.0 7490 . 4.5 19.] U
1218189 0II-1IQV-89 1650 12.5 U 1.7 U 41.6 U 1.0 U 1.0 U 3010 520 U 2.1 U 10.4 U 6.0 1140 6.7 20.8 U
1218589 10'OI:T'89 10200 12.5 U 4.0 112 1.0 U 1.0 U 109000 209 U 11.4 10.4 U 5.2 U 8000 4.6 20.9 U
1218689 13-IIOV'89 8230 12.8 U ].2 87.6 1.1 U 1.1 U 109000 212 U 11.6 10.6 U 5.3 U 5380 3.5 21.2 U
1218789 15-1IQV.89 5410 12.4 U 2.5 41.3 U 1.0 U 1.0 U 17800 207 U 7.11 10.3 U 8.4 5550 3.1 20.7 U
1218789 16-1IQV-1I9 4810 12.8 3.9 41.1 U 1.0 U 1.0 U 1110 206 U 8.5 10.3 U 6.6 7180 4.] 20.6 U
1218989 27-1IOV-1I9 6060 102 U 5.1 n.1I 0.41 U 0.81 U 25800 204 U 7.7 4.1 U 5.5 6710 5.0 5.3
1319789 18'JAII'9O 10800 106 U 6.1 96.5 1.2 0.85 U 54000 1000 U 9.11 7.4 8.3 8920 6.1 7.0
1319789 22-JAII-9O 9520 115 U 9.] 79.2 1.7 0.92 U 35110 1000 U 14.6 12.8 13.7 12600 14.8 5.5
8H3987 12-AUG-87 15500 12.00 U 26 66 1.00 U 6.2 16100 8.7 10.00 U 8.2 15400 6.2
11140117 13.A\JG-87 7'900 12.00 U 15 69 1.00 U 2.2 32000 7.7 10.00 U 9.8 10700 8.5
IH4187 17.A\JG'87 6960 12.00 U 12 52 1.00 U 1.4 27300 32 10.00 U 5.9 9220 4.4
".ll Dat. ....,..1 WI M8n8_le Mercury Mol ybderuI III chi Pot..IIWI SelenlUl Silver SodlUl StrontiUl Th.lllUl Tin Venldllll Zinc
IIUlllber SlIIIIpt ad ("I) (MI) (HI) (1teI) (III) (Ie) (I.) (AI) (lIa) (Sr) eTl) (In) (V) (In)
...... ....... ........ ......... ......... ......... ......... ......... ....... ....... ........ ....... ......... ....... .........
1217389 26-SEP'89 4830 141 0.14 21.6 U 15.4 10lIO U 6.5 2.2 U 10lIO U 279 4.6 U 21.6 U 20.5 33.3
1217589 17-OCT-89 1200 113 0.22 21.4 U 8.6 U 1130 1.1 U 2.1 U 1070 U 214 U 2.1 U 21.4 U 22.8 130
0.13 U 19.3 U 11.7 1650 1.1 U 1.9 U 965U ' 67.0 2.2 U 29.1
1218189 06'1IOV'1I9 2420 115 22.2 21.2
1218189. 0II'1IOV-89 1040 U 6.9 0.11 U 20.8 U 8.3 U 1040 U 0.85 U 2.1 U 1040 U 24.1 1.7 U 20.8 U 10.4 U 14.0
1218589 10-OCT'89 2970 82.4 0.13 20.9 U 15.5 1040 U 1.0 U 2.1 U 1040 U 209 U 2.1 U 20.9 U 20.3 65.8
1218689 13-IIOV-89 2420 75.7 0.]3 21.2 U 12.8 1060 U 1.0 U 2.1 U 1060 U 212 U 2.1 U 21.2 U 17.6 59.4
1218789 15-1IQV-89 1400 59.1 0.24 20.7 U 10.] 1030 U 1.0 U 2.1 U 1030 U 207U 2.1 U 20.7 U 14.4 56.1
1218789 16-1OV-89 1030 U 1]7 0.24 20.6 U 8.2 U 1030 U 1.0 U 2.1 U 1030 U 206U 2.1 U 20.6 U 19.9 n.9
8218989 27-1OV-89 1400 101 0.0lIO 102 U 12.3 891 0.42 U 6.1 U 60.5 34.] 0.62 U 204 U 17.0 15.3
8319789 18-JAII-9O 2610 244 0.095 106 U 23.9 1360 2.0 U 6.4 U 71.6 62.6 0.60 U 212 U 20.] 17.5
1319789 22-JAIt-9O 2540 220 0.12 U 115U 33.2 1610 2.5 U 6.9 U 90.1 42.0 0.74 U 231 U 36.1 56.7
1113987 12-AUG-87 2660 69 0.1 U 14 1340 1.00 U 2.00 U 1000 U 23 2.00 U ]] 26
IH40117 1J-AUG'87 2090 526 0.1 U 19 1000 U .'.00 U 2.00 U 1000 U 28 2.00 U 28 25
1114187 17-A\JG-87 1540 213 0.' U 8.00 U 1000 U 1.00. U 2.00 U 1000 U 26 2.00 U 17 15
I-Vatue Ie.. than Contract Required Detection Llalt (CROU but Ire.ter than lnatr~t Detection Llalt (lDU
*-oupllcat. enalyala not within control 11.lte
U-An8tYlad by not detected J-Pr..ent betow detection lIlIlt E-Eltl..ted Value
-------
Pall- 10. 4
5011 Boring Total Metal aelults
bit Trench.. Aree
a_Iulta reported In II8Ikl**
Well Data Ah..l- Antl80nV Araenlc BarlUIII Beryll hll C-Ilil CalclUIII Ceallil Chr.11II Cobalt Copper Iron Lead LI thlUII
.lIIMr 1..led (AI) (AI) (AI) (8e) (Be) (Cd) (Ca) (C.) (Cr) (Co) (Cu) (fe) (Pb) (Lt)
...... ....... ........ ......... .-...... ......... ......... ....... ....... ....... ........ ....... ....... ....... ....... .......
1"5687 10-IIP-87 5860 12.00 U' 4.7 40.00 U 1.00 U 1.4 13300 14 10.00 U 11 8500 2.4
1"5687 11-IIP-87 4090 12.00 U 7.1 40.00 U 1.00 U 1.00 U 4630 5.8 10.00 U 6.7 8150 3.1
Well O.ta Megnnl UII Mantanne Mercury Nol ybdeIuI IIlckel Potal.IUII lelenlu. SHYer SodlUII StrontlUII Thall 1111 Tin V8t'IId1 UII. Zinc
IilllMr -..lad (MI) (tit) (HI) (No) (III) (I() (Ie) (AI) (III) (Sr) (II) (sn) (V) Un)
...... ....... ........ ......... ......... ......... ......... ......... ....... ....... ........ ....... ......... ....... ......... .......
1"5687 10-SEP-87 1380 292 0.1 U 8.0 1000 U 1.00 U 2.00 U 1000 U 16 J 2.00 U 22 4.4
IH5687 11-SEP-87 1120 94 0.1 U 8.8 1000 U 1.00 U 2.00 U 1000 U 20.00 U 2.00 U 25 11
,
I.Value I... than Contract Required Detection ll.1t (ClDL) but Ireater than lnat..-t Detection LI.lt (IOU
--oupllcate analysl. not within control 11.lt.
UeAnalyz8d a., not .tectad Jepr..ent below .tectlon 1I.1t EeEetl-ted Value
-------
Pige No. 3
50lt 80rlng Totlt Hetlt Resuttl
Eist Trenches Arel
Resutta reported In I18/kg**
w.ta Oltl Atl8l... AntllllOflV Arsenic 81rl18 8ervta 1\11 Cadnh. Cllch. Ceall8 Chr-118 Cobett Copper Iron Lead L Ith I III
llIIber SlIIpted (At) (At) (AI) (81) (8e) (cd) (Ce) (Ca) (Cr) (Co) (Cu) (Fe) (Pb) (ll)
...... ....... ........ ......... ......... ..11....118 ......... ....... ....... ....... ........ . ....... ....... ....... ....... .......
IH4887 17-5EP-87 10300 12.00 U 12.3 40.00 U 1.00 U 1.6 4920 6.0 10.00 U 5.00 U 5300 10.6
8H4987 18-5EP-87 9250 12.00 U 13.7 42 1.00 U 2.4 23000 15.2 10.00 U 10.5 9690 2.8
IH4987 21-5EP-87 6640 12.00 U 3.8 40.00 U 1.00 U 1.00 U 1760 7.5 10.00 U 6.2 8830 2.9
IH5087 17-5EP-87 9560 12.00 U 11.4 40.00 U 1.00 U 2.7 21,50 11.3 10.00 U 13.1 11,800 1.2
IH5187 18.5EP-87 25300 12.00 U 28.4 99 1.00 U 5.6 4080 20.6 10.00 U 11.2 20200 1,5.6
1"5187 n.SEP-87 12000 12.00 U 3.4 40.00 U 1.00 U 1.00 U 26100 13.3 10.00 U 7.5 10500 3.6
1"5287 22-SEP-87 12600 12.00 U 4.8 112 1.00 U 1.2 175000 9.1 10.00 U 5.00 U 8780 4.3
IH5387 11.SEP-87 9850 12.00 U 8.9 140 1.00 U 2.3 75600 7.3 10.00 U 6.9 9320 7.2
IH5387 14-SEP-87 5530 12.00 U 3.0 40.00 U 1.00 U 1.00 U 1170 6.1 10.00 U 6.3 8000 2.5
1"5487 15-5EP-87 3620 12.00 U 3.1 154 1.00 U 1.00 U 169000 2.00 U 10.00 U 5.00 U 3830 1.8
1"5487 .16-SEP-87 15100 12.00 U 29.6 53.1, 1.00 U 2.1 58300 10.5 10.00 U 8.2 14600 3.6
8"5487 18-IEP-87 24200 12.00 U 30.8 79 1.1 5.5 4620 24.6 10.00 U 17.3 19700 6.8
1"5487 21.IEP-87 11900 12.00 U 5.5 64.8 1.00 U 1.9 2540 10.4 10.00 U 11.8 12000 5.5
8"5587 15-SEP-87 11900 12.00 U 12.7 91 1.00 U 2.4 80000 3.8 10.00 U 5.00 U 10100 2.1
Weta Dete ",gnelll8 Hlngenese Hercurv Hot)'bdeR8 Nickel Pote..". 51tenl18 1 It VIr lodll8 Itrontll8 Thet t 118. Tin V8Nld118 Zinc
Nwmer llIIpled ("g) (Hg) (Hg) ("0) (NI) (IC) (51) (Ag) (Ie) (5r) (Tt) (5n) (V) (Zn)
...... ....... ........ ......... ......... ......... .....811.. ......... ....... ....... ........ ....... ......... ....... ......... .......
8"4887 17"5EP-87 1970 15.7 0.1 U 8.00 U 1000 U 1.00 U 2.00 U 1000 U 29.1 2.00 U 13.8 20.6
1"4987 . 18-5EP-87 1800 170 0.30 25.5 1260 1.00 U 2.00 U 1000 U 20.00 U 2.00 U 22.2 14.8
8H4987 21-SEP-87 1360 147 0.1 u. 8.00 U 1000 U 1.00 U 2.00 U 1000 ti 20.00 U 2.00 U 22.9 17.6
1"5087. 17.IEp.87 1710 203 0.12 12.5 1250 1.00 U 2.00 U 1000 U 20.00 U 2.00 U 36 19.8
8H5187 18-IEP-87 2810 144 0.15 15.8 2620 1.00 U 2.00 U 1000 U 27 2.00 U 36.2 36.2
1"5187 22-SEP-87 2840 75.4 0.14 8.00 U 1310 1.00 U 2.00 U 1000 U 20.00 U 2.00 U 13.8 16.9
IH5287 22-UP-87 4070 68.4 0.15 9.6 1400 1.00 U 2.00 U 1000 U 170 2.00 U 18:8 17.8
1"5387 11-UP-87 2550 228 0.1 U 8.5 1970 1.00 U 2.00 U 1000 U 59 2.00 U 28 '30
1.5387 14-SEP-87 2470 74.1 0.1 U 8.00 U 1000 U 1.00 U 2.00 U 1000 U 20.00 U 2.00 U 15.1 14.6
IH5487 15-UP-87 2630 37.1 0.1 U 9.2 1000 U 1.00 U 2.00 U 1000 U 196 2.00 U 11 10.3
1.5487 16-UP-87 3500 79.4 0.1 U 12 1620 1.00 U 2.00 U 1000 U 45.6 2.00 U 36.7 23.9
1115487 18-UP-87 4950 165 0.1 U 16 4170 1.00 U 2.00 U 1000 U 20.00 U 2.00 U 40.2 48.2
1.5487 21-UP-87 2490 164 0.1 U 8.5 1760 1.00 U 2.00 U 1000 U 20.00 U 2.00 U 21.5 26.7
1.5587 15-UP-87 2710 78.4 0.1 U 19.5 1250 1.00 U 2.00 U 1000 U 72.7 2.00 U 25.2 20.2
8-Vllue 1..1 then ContrlCt Required Dltectlon LI.tt (CRDL) but grlltlr then Instrl8ent Dltectlon LI.lt (lDl)
--oupllclte InIlytl. not within control '1.lt.
U8AnetVZed by not detected J.p,..ent below detection 1I.lt E-E.tl..ted VI'ue
-------
Soli Boring Inorganic R..ultl
903 Pad Are.
ReluUI reported In III/k.. except PH
Well Dlte
IIuIbIr IlIIIplad CYll'llde Sulfide Nitrate/Nitrite
...... ....... -..-..-.-. ................ ................
8315289 26-OCT-89 2 U 3.1
1318889 17-110V-89 2 U 1.7
IH2287 9-M-87 1.25 U 200 U
IH2387 7-JUL'87 10.4 200 U
IH2487 8'JUI.-87 1.49 200 U
IH2587 18-Ml-87 2.5 U 200 U
1112687 "-JUL -87 0.25 U 200 U
.1112787 6-JUl.-87 19.8 200 U
1112887 13.M.-87. 1.25 U 200 U
1113087 "-8-87 1.25 U 200 U
U-Analyzed but not detected
.. '87 data reported on 8IIt-IMI-,t ".11;
J-Pr......t be I 011 detection iI.lt
'89 data reported on dry-8II1-,t be.l.
E-Eltl..ted vilue
Oil II'Id Grea.e
................
1.7 U
1.7U
261
1.7 U
5 U
1.7 U
1.7 U
1.7 U
,
PH
................
7.8
8.4
8.75
8.15
7.43
8.50
8.28
8.35
8.35
8.35
-------
SOIL SAMPLING RFSULTS
-------
Solt 'orlng Inor8lnlc Re.utt.
E..t Trench.. Are.
".ut t. reported In I18/k8- e.cept 'H
wett O.te
Nllllber SlIIIpt ed Cylinlde Sulfide Nltrete/Nltrlte 01 t end Gr....
...... ....... ...._.._a.... ................ ................ ................
'215389 St-OCT-89 2U 1.0
1215389 06-IICJV-89 2U 1.2 U
1217389 26-.'-89 2U 1.7
1217589 17-OCT-89 4 1.9
8218189 06-IICJV-89 3U 1.8
1218189 08-IICJV-89 2 U 1.3
1218589 10-OCT-89 2U 2.4
'218689 13-IICJV-89 2U 2.6
'218789 15-1ICJV-89 2U 1.1 U
1218789 16-IICJV-89 2U 1.1 U
'218989 27-1ICJV-89 2U 1.1 U
1319789 18-"g-90 2 1.6
8319789 22-"U-90 2U 4.3
IH3987 1Z-AUG-87 2.5 200 U 1.7
'"'087 1]-AUG-87 2.5 200 U 1.7
1",187 17-AUG-87 2.5 U 200 U 1.7 U
'H4287 18-AUG-87 2.5 U 200 U 1.7 U
IH4287 19-AUG-87 2.5 U 200 U t.7 U
1"'287 . 21-AUG-87 2.5 U 200 U 1.7 U
1",387 04-""-87 2.5 U 200 U 1.7 U
IH4387 04-SE'-87 2.5 U 200 U '
1.7 U
1.387 08-.'-87 2.5 U 200U
IH4487 09-IE'-87 2.5 U 200 U 1.7 U
1",587 ]1-AUG-87 2.5 U 200 U 1.7U
1114687 2-.'-87 2.5 U 200 U t.7 U
1114687 3-.'.87 2.5 U .200 U t.7 U
'H4787 11.11'.87 2.5 U 200 U
IH4787 14.11'-87 200 U
IH4787 15..'.87 2.5 U 200 u
IH4887 16-.'-87 200U
IH4887 17-.'-87 200 U
IH4987 18-.'-87 200 U 15.0
1"'987 21-11'-87 200 U
IH5087 17.11'-87 200 U
IH5187 18-.'-87 3.]] 200 U
IH5187 22-.'-87 200 U
'H5287 22..'-87 200 U
UaAnltyzed but not detected ""r..ent betow detection U.it EaE.tI-ted Yltue
-. '87 eIIt. reported an ...t-...hlht beel'i '89 eIIt. reported on dry-...lght be.l.
'H
................
8.7
7.9
8.4
7.0
7.7
8.4
7.8
8.6
8.4
8.7
8.0
6.9
7.9
7.87
8.67
8.57
8.37
7.91
8.05
8.80
8.20
7.70
8.87
8.34
8.ft
8.22
7.84
8.53
7.65
7.52
7.74
7.42
7.78
8.02
7.42
-------
Ueu
llllber
......
1113287
ll13S87
IHJ487
1113587
1113587
IHJ687
IH]787
IHS887
SoH Boring lnorgllnlc Result.
MOtRf Area
Resul t8 reported In ../lcg- except PH
Date
IIIIIpled Cyanide Sulfide Nitrate/Nitrite
....... ...-....-... ................ ................
].U-87 2.5 U
]O.JIIL.87 2.5 U 200 U
29.M-87 2.5 U 200 U
27.M.87 2.5 U 200 U
28-M.87 2.5 U 200 U
20-M-87 2.5 U 200 U
'7-M-87 2.5 U 200 U
"-,M.87 1.25 U 200 U
011 and Grea.e
................
1.7U
1.7 U
1.7 U
"
UaAnalyzed but not detected
.. '87 data reported on wt-wlght bul.;
...pre.ent belOM detection 1I.lt
'89 dat. reported on dry-wight be.l.
EaE.tl..ted value
PH
................
8.97
8.75
8.78
8.94
8.75
9.25
8.81
-------
SOIL SAMPLING RESULTS
-------
Solt Boring Inorganic Re.utt.
Ea.t Trench.. Area
AHUh. reported In 8III/kll* except PH
Yeti Date
Ik8ber I..ted Cyanfde Sutffde Nltrete/Nltrlte
...... ....... ............-. ................ ................
1"5381 11-IEP-81 2.5 U 200 U
1"5381 14-.P'81 200U
1"5417 15-IIP'87 2.5 U 200 U
IH54I7 16'IEP'87 200 U
IH54I7 18-IEP'87 200U
IH54I7 21 -IEP-87 200 U
1"5587 15-IIP-87 2.5 U 200 U
IH5687 10.IEP.17 200 U
1"5687 11.IEP.17 2.5 U 200 U
U-An8tyzed but not detected
*. '87 deta reported on wet-wefght ba.f.;
. J-Pr..ent betCN detection iI.lt
'89 date reported on dry.welght be.l.
E-E.tl..ted vetue
011 end Gr...e
................
1.7 U
,
PH
................
7.55
8.41
8.54
1.38
7.65
7.65
7.41
8.75
-------
SoH Boring .8dloch_l.try ...ult.
MoInt Ar..
Gro88 Gr.. Urenh. StrontlUl PlutonlUl MerlelUi TrltlUl
weu D.t. AIJIh. I.t. Tot.i* 90 239/240 241
llulber S-.,. " CpCI/I) CpCl/I) CpCI/I) CpCl'g) CpCl/I) CpCl/g) CpCl/t)
...... ....-. ..-.- ......... ......... ......... ......... ......... .......
l113Z87 )-MJG-87 2S ./- 14 14 ./- 6 .1.09 -0.1 ./- 0.6 0.35 ./- 0.17 -0.06 ./- 0." 80
IIIssa7 SO-JUL-87 2S ./- 14 24 .,- 7' 0.78 0.6 .,- 0.6 0.14.'- 0.20 0.04 .,- 0.15 230
lIIS487 29-JUL-87 18 ./- 15 16 ./- 6 0.7 0_0 ./- 0.5 .0.08 ./- 0.16 -0.02 .,- 0.07 -ZO
IN3587 27-JUL-87 17 ./- 15 9.8 ./- 6.2 0.93 -0.4 .,- 0.6 1.5 ./- 0.2 0.40.'- 0.19 40
1113587 28-JUl-87 18 ./- 12 15 ./- 6 1.53 0.2 ./- 0.6 0.06 ./- 0.15 0.02 ./- 0.04 220
IH3687 ZO-JUL-87 12 ./- " 15 ./- 6 2.9 0.1 .,- 0.5 0.53 .,- 0.16 0.04 ./- 0.18 - 1 (II)
IN3787 17-oIUL-87 29 ./- 15 22 ./- 6 1_09 0.0 ./- 0.4 -0.06 .,- 0.07 -0.02 ./- 0.16 -180
IH3887 14-JUL-17 17 ./- " ZS ./- 6 0.8 0.1 ./- 0.5 0_08 ./- 0.15 -0.01 ./- 0.02 1ZO
,
Th. t8bl. fOnl8t I.: result ./- counting .rror
-------
Soil lorlng aldloeh..l.try a..ult.
90J Pid Ar..
Gro.. Gro.. Urenh. Strontlua Plutonlua A81rlclua Trltlua
..." D.t. Alph. I.t. Tot.l* 90 239'240 241
Mu8Ier IMpl8d (pCI/I) (pCl'l) (pCl'l) (pCl/g) (pC 1/1) (pCl,g) (pCl,t)
...-. ....... ........ --...... ......... ......... ......... ......... .......'
IJ15289 26-OCT-89 41.8 .,- 6.1 19.8 .,- 4.2 0_34 0.15 +,- 0.57 1J.0 .,- 0.2 J6500 .,- 1500
IJ18889 17-81OV-89 1_05 -0.06 .,- 0.29 0.020 .,. 0.010 -140 .,- 200
1"2287 9-_-87 32 .,- 14 22 .,- 6 0.61 -0.1 +,- 0.4 0.06 ./. 0.08 0.02.'- 0.10 140
IH2387 7-.IUL -87 JO .,- 12 16 .,- 6 0.J8 1.1 +,- 0.5 1.1 .,- 0.2 0.10 +,- 0.12 -290
1"2487 8-JUL-87 JOD .,- 40 Z6 .,- 6 0.75 -0.1 .,- 0.6 94 .,- 6 11 +,. 2 90
IH2587 18-""-87 29 +,- 13 27 +,- 6 2.09 0.4 +,- 0.5 0.06 +,- 0.07 -0.03 +,- 0.08 150
1"2687 16-JUL-87 190 .,- JO 20 +,- 6 2.1 0.0 +,- 0.4 8J +,- 2 12 +,- 1 20
IH2787 6-JUL-87 40 .,- 14 Z6 .,- 6 0.27 0.8 +,- 0.5 3.8 .,- 0.4 0.44 .,- 0.15 30
IH2887 1S-JUL-87. 39 .,- 14 21 +,- 6 2.5 -0.1 .,- 0.5 2.0 .,- 0.3 0.24 +,- 0.17 -30
lIIJOI7 16-""-87 480 .,- 50 5.4 .,- 5.4 1.35 0.1 .,- 0.4 180 +,- 10 22 +,- 6 -100
,
The tabl. fOn88t I.: r..ult .,- counting .rror
-------
SoH lorl", R8dloch.lltry ."Ultl
Ellt 'rench.. Are.
Groal Groal Uranh. StrontlUi 'iutonlUi AMrlc:IUI 'rltiUl
YIlt D.t. AI"" I.t. 'ot.I- 90 239'240 241
IkI8er lIIIp'td (pC 1/1) (pCl'l) (pCl'l) (pCl'l) (pCl'l) (pCl'l) (pCI/U
--.. .- ......- ...-.... ......... ......... ......... ......... __a.-
IIISJ87 14-IE'-87 19 *,- 12 19 *,- 6 1.06 0.0 *,- 0.5 0.03 *,- 0.15 0.03 *,- 0.09 0
1115487 1S-SE'-87 5.5 *,- 6.6 11 *,- 5 0.94 0.2 *,- 0.5 0.31 *,- 0.14 0.05 *,. 0.09 -30
1.5487 16-SE'-87 ".,- 15 20 .,- 6 0.88 -0.2 *,- 0.5 0.02 *,- 0.09 -0.04 .,- 0.05 130
1115487 18-.'-87 D .,- 15 12 *,- 6 0.75 0.] *,- 0.5 0.00 .,- 0.09 -0.03 .,- 0.05 170
1115487 21-SE'-87 14 *,- 12 27 *,- 6 0.78 0.1 *,- 0.5 -0.01 *,- 0.09 0.06 *,- 0.01 120
1.5587 15-SE'-87 D *,- 12 20 *,- 6 0.86 -0.1 *,- 0.5 0.06 *,- 0.09 .0.03 *,- 0.01 30
1.5687 10-SE'-87 16 .,. 10 20 .,- 6 0.89 0.1 *,- 0.4 -0.07.'- 0.12 0.04 .,. 0.06 -270
1..5687 11-SE'-87 54 ./- 17 27 ./- 6 7.] 0.5 */- 0.6 -0.04 *,- 0.12 0.08 *,- 0.10 -250
"
'hi tabl. fOnlat 1.1 rault */- countl", error
-------
Soli Boring a8dloch..t.try a..uit.
E..t Trench.. Ar..
Gro.. Gro.. Ur...l\8 Stronth.. Piutonh.. A8erlcl\8 Trlth..
WlH D.ta "ipll. let. Tot.i- 90 Z39,240 241
llulber S81pi8d (pCl't) (pCt't) (pC 1/8) (pCl't) (pCt't) (pCt't) (pCl,i)
...... ....... ........ ...-.... ......... ......... ......... ......... .......
NtS389 J1-OCT -89 9.0 .,- J.O 14.4 .,- 3.7 1.9 0.37 .,- 0.37 0.131 .,- 0.036 0.031 .,- 0.015 -150 .,- Z90
1Z17389 Z6-IE'-89 11.2 .,- 2.9 27.4 .,- 4.9 2.3 0.26 +,- 0.33 0.364 +,- 0.045 -30 +,- 210
1217589 1'-OCT-89 15.2 .,- 4.0 22.9 +,- 4.0 0.71 0.52 +,- 0.48 0.645 .,- D.041 500 +,- 550
1Z18189 06'1IOV-89. 13_1 .,- 4.2 6.9 .,- 3.2 0.92 0.19.'- 0.37 .118 .,- .033 0.068 +,- 0.025 Z20 .,- 280
1Z18189 08-IIOV-89 51_1 +,- 6.6 29.6 +,- 4.5 1.84 0.27 +,- 0.35 0.011 +,- 0.008 0.005 +,- 0.001 -210 .,- 210
1218589 10'OCT-89 25.0 +,- 5.2 21.2 +,- 4.5 0.75 0.20 +,- 0.36 0.633 +,- 0.072 110 +,- ZOO
1218689 13-1IOV-89 19.6 .,- 5.2 19.0 +,- 4.3 1.09 0.35 +,- 0.38 2.864 +,- 0.285 270 +,- 90
1Z18789 15-1IOV-89 8.6 .,- 2.1 11.5 +,- 4.1 0.77 0.21 +,- 0.27 1.604 +,- 0.164 0.256 +,- 0.054 410 +,- 220
1218789 16-1IOV-89 10.7 +,- 1.7 15.5 .,- 4.1 0.56 0.17 +,- 0.36 0.015 +,- 0.009 0.002 .,- 0.004 130 .,- 190
1218M9 27-1IOV-89 0.59 0.08 +,- 0.38 0.020 +,- 0.014 200 +,- 220
1119719 18-".-90 4.2 +,- 3.0 10.3 +,- 3.1 1.31 0.42 +,- 0.30 0.018 +,- 0.008 0.003 +,- 0.007
U19789 22-".-90 6.4 .,- 4.3 22.6 .,- 4.1 1.31 0.12 +,- 0.51 0.005.+'- 0.005 0.005 +,- 0.010
1113987 12-AUG-87 31 .,- 14 21 .,- 6 0.5 +,- 0.5 0~03 .,- 0.10 0.01 .,- 0.09 110
1114081 13-AUG-17 26 +,- 13 24 +,- 7 0.8 +,- 0.3 -0.03 +,- 0.10 0.12 +,- 0.10 -230
1114187 1'-AUG-It 13 +,- 10 16 +,- 6 1.59 0.2 +,- 0.5 0.17 +,- 0.11 -0.01 +,- 0.08 -Z90
IH4287 18-AUG-Il ZJ +,- 11 Z3 +,- 6 0.89 0.2 +,- 0.4 0.11 +,- 0.14 0.01 +,- 0.09 -190
IH4281 19'AUG-81 16 .,- 10 20 .,- 6 1.58 0.0 +,- 0.4 -0.09 +,- 0.11 0.00 .,- 0.09 390
1114287 21-AUG-17 30 +,- 11 9.9 +,- 5.3 0.65 0.2 +,- 0.4 -0.06 .,- 0- t1 -0.01 +,- 0.08 170
1114387 04'JWI-17 24 +,- 14 17 +,- 6 0.87 0.5 +,- 0.6 -0.03 +,- 0.09 0.01 +,- 0.08 -]00
iH4381 04-.'-81 14 +,- 13 20 +,- 6 0.81 0.1 +,- 0.5 ..
0.09 +,- 0.12 -0.03 +,- 0.07 180
IH4387 08-1£'-87 15 .,- 12 21 .,- 6 1.11 -0.3 .,- 0.5 -0.04'+,- 0.09 0.04 .,- 0.10 -100
,114487 09-1£'-87 40 +,- 14 21 +,- 6 1.61 0.1 +,- 0.5 0.01 +,- 0.09 -0.02 +,- 0.08 190
IH4587 31-AUG-81 ZJ .,- 10 20 .,- 6 0.89 0.1 +,- 0.4 0.09 +,- O. t1 0.03 .,- 0.11 50
IH4687 2-1£'-87 30 .,- 11 18 .,- 6 1.41 0.0 +,- 0.6 0.06 +,- 0.17 -0.02 +,- 0.06 20
IH4687 3-IIP-87 42 .,- 16 31 .,- 6 1.n -0.5 .,- 1.0 0.09 .,- 0.12 0.03 +,- 0.10 220
IH4787 11-"-81 20 .,- 13 22 .,- 6 1.11 -0.1 .,- 0.5 0.01 +,- 0.13 0.06 +,- 0.09 90
IH4781 14-11'-17 17 .,. 11 16 .,- 6 0.84 0.4 +,- 0.6 0.03 +,- 0.10 0.09 .,- 0.11 -]00
IH4787 15-.'-17 21 .,- 11 21 .,- 6 1.45 0.3 +,- 0.7 0.01 +,- 0.10 -0.02 +,- 0.09 -180
II148II7 16-.P-17 12 .,- 13 18 .,- 6 0.97 0.2 .,- 0.3 0.15 .,- 0.14 0.02 .," 0.07 -10
IH4887 17-11'-17 15 .,- 12 25 .,- 6 0.96 0.0 .,- 0.5 0.03 .,- 0.10 0.03 .,- 0.07 140
IH4987 18-11'-17 21 .,- 12 14 .,- 6 1.02 0.0 +,- 0.4 0.10 +,- 0.13 0.02 +,- 0.07 -40
IH4981 21-11'-17 36 .,- 15 18 .,- 6 0.54 -0.1 .,- 0.5 -0.01 +,- 0.11 0.04 +,. 0.07 180
1"5087 17'.'-87 11 .,- 10 18 .,.- 6 0.96 -0.1 .,- 0.6 '0.01 +,- 0.11 0.02+'- 0.06 -260
1"5187 22-.'-87 24 +,- 14 31 .,- 6 1.06 0.2 +,- 0.4 '0.06 +,- 0.08 0.05 +,- 0.10 110
IH5287 22'1£'-87 11 .,- 13 16 .,- 6 1.74 -0.2 +,- 0.4 0.51.,- 0.17 0.14 +,- 0.10 100
IH5J81 11-.P-81 28 .,- 14 22 .,- 1 1.35. 0.3 +,- 0.5 6.0 +,- 0.2) 0.53 +,- 0.20 DO
-------
SOIL SAMPLING RESULTS
-------
APPENDIX A-2
SOIL SAMPLING RFSULTS
SUMMARY TABLE'S
SUBSURFACE IMIIRA
-------
S~ry T8bI. for Soil-Boring Volatll. Or8,"lc Cont..lnantl
MOtRI Ar.a
Reaultl reported In Ut/le8
IIl.IIber of lI~r of lI~rof . Aver.lle of Mlnl- of Mexl- of
An8lyt. Rnul tI lIon.Detectl Hltl All V.lun** All V.lun V.lun
Chlor..th- 8 8 0 22.14 10.00 U
Ir_th- . . 0 25.00 50.00 U
Vinyl Chloride 8 . 0 25.00 50.00 U
Chlor08th- 8 . 0 25.00 50.00 U
Methylene Chloride . 4 4 11.79 7.00 J 17.00 J8
Ac.t- . 1 7 108.5 19.00 J ]10.00
C.rbon Dllulflde . . 0 12.50 25.00 U
1,1.Dlchtor08thene 8 . 0 12.50 25.00 U
1,1-Dlchlor08th- 8 8 0 12.50 25.00 U
Tr_-1,2-Dlchlor08thene 8 . 0 12.50 25.00 U
1,2.Dlchtor08thene (tot.l) 0 0 0
Chlorofol'll 8 8 0 12.50 25.00 U
1,2.0Ichlor08thlnl 8 7 1 14.86 25.00 U 29.00
2.lut- 8 8 0 25.00 50.00 U
1,1,1.Trlchlor08th- 8 8 0 12.50 25.00 U
C.rbon T.trlChtorlde 8 . 0 12.50 25.00 U
Vlnyt Ac.t.t. 8 8 0 25.00 50.00 U
Ir08Odlchtor..th- 8 . 0 12.50 25.00 U
1,2-Dlchloropropene 8 8 0 12.50 .25.00 U
cl..1,]-Dlchloropropene 8 8 0 12.50 25.00 U
Trlchlor08thene 8 8 0 12.50 25.00 U
Dlbr08DChlor..th- 8 8 0 12.50 25.00 U
1,1,2-Trlchtoroeth- 8 8 0 12.50 25.00 U
Ianz- 8 8 0 12.50 25.00 U
'rent-1,].Dlchtoropropene 8 8 0 12.50 25.00 U
2-Chlor08th,lvlnyl.th.r 0 0 0
Ir08'ol'll 8' 8 0 12.50 25.00 U
4-Methyt-2-pentenona 8 8 0 25.00 50.00 U
2-"""" 8 8 0 25.00 50.00 U
'.trlChloroethene 8 8 0 12.50 25.00 U
1,1,2,2-'.trlChtor08th- 8 8 0 12.50 25.00 U
Tol... 8 6 2. 11.68 6.00 J 10.00 J
Chloroblnlene 8 8 0 12.50 25.00 U
Ethylb8nl- 8 8 0 12.50 25.00 U
St,rene 8 8 0 12.50 25.00 U
Tot.1 X,lene. 8 8 0 12.50 25.00 U
--....an II flrlt COIpUted at Individual .tatlons 8nd th8n av.r..ed; If r..ult quallfl.r II U, .tatl.tlc. ar. cilculated using 0.5 the reported result.
115-110 Itlndlrd, u-AnIlyzed but not detected, J"rn8nt bel. D.tectlon It.lt, l"'rn8nt In 1IInk, E-Eatl_t8d V.I..
-------
SUII8ry Tabte for Solt-80rlng Votetlte Grgenlc Cont..lnentl
90] P8d Are.
...ut t. reported In U81kg
.....r of .....r of "lIIIber of Averille of "Inl- of "1.1- of
Anltyte ...uttl lIon.D.tecti Hltl AU Vltuea" At t V.t"'l V.tuea
Ctltor08lth- 10 1'.\ 0 17.05 9U
IrCl888th- 10 10 0 17.05 9U
Vlnyt Chtorlde 10 10 0 17.05 9U
ChtorOlth- 10 10 0 17.05 9U
Methyt- Chtorlde 10 2 8 14.36 6.00 J 31.68
Acetone 10 2 8 61.81 4 J 140.00 8
Carbon DlluUlde 10 10 0 8.50 4 U
1,1-DlchtorOlthene 10 10 0 8.50 4 U
1,1-DlchlorOlth- 10 10 0 8.50 4U
Tr8R8-1,Z-DlchtorOlth- 8 8 0 10.06 5 U
1,Z-DlchlorOlthene (tot.t) Z Z 0 Z.25 4U
Chtorofona 10 10 0 8.50 4U
1,2-DlchtorOlth- 10 10 0 8.50 4U
z-aut.... 10 10 0 17.05 9U
1,1,1-TrlchtorOlth- 10 10 0 8.50 4U
Clrbon Tetrachtorlde 10 10 0 8.50 4 U
Vlnyt Acet.te 10 10 0 17.05 9U
Ir08Odlchtor08lth- 10 10 . 0 8.50 4 u
1,Z-Dlclltoroprop8flt 10 10 0 8.50 4 U
ell'1,]'Dlehtoroprapene 10 10 0 8.50 4U
TrlchtorOlthene 10 9 1 16.95 4U 97
Dlbr08OChtor08lth- 10 10 0 8.50 4'U
1,1,Z-TrlchtorOlth- 10 10 0 8.50 4 U
Ienlene 10 10 0 8.50 4U
'rlftl-1,]-Dlchtoroprapene 10 10 0 8.50 4 U
Z-ChtorOlthytvlnytether 0 0 0
Ir08OfOrtl 10 10 0 8.50 4 U
'-Methyt-Z-pent.... 10 10 0 17.05 9U
Z-Huenone 10 10 0 17.05 9U
'etrachtorOlthene 10 9 1 ZO.B 4U 130
1,1,Z.Z-'etr8ChtorOlthlftl 10 10 0 8.50 4U
'ot.. 10 9 1 7.85 4U 6 J
Chtorobenz- 10 10 0 8.50 4 U
Ethytblnl- 1D 9 1 8.35 4 U " J
Styrene 10 10 0 8.50 4U
'ot.t Xytlnll 10 9 1 13.25 4U 60
888M.an II flrlt CGlpUted .t Indlvlduet Itetlana and then Iverl.ed; If r..utt qultlfler II U, ItatlltlCI Ire Cltcutlted ualng 0.5 the reported relutt.
"S-lio Stlndlrd. UaAn8tyzed but not detected, JaPr..ent betow D.tectlon 1I.lt, I"r.....t In It..., EaEltt..ted V.t",
-------
SOIL SAMPLING RESULTS
-------
SUII8ry T8ble for Soll-Iorlng Voletlle Or81nlc Cont..lnent.
E..t Trench.. Aree
..ault. reported In US/k8
IllIIIber of IIlIItIer of lIu8b8r of Averlie of "Inl- of "nl- of
Alwlyt. ...ul t. lIon-D.tectl Hit. All Vilun-- All V.lun Vilun
Chlor_th8118 47 47 0 18.n 00.00 U
IrClllC88thene 47 47 0 18.96 9U
Vinyl Chloride 47 47 0 18.96 9U
Chloroeth8118 47 47 0 18.96 9U
Methylene Chloride 47 17 30 17.64 3 "I 210 E
Ac.tone 47 16 31 216.1 9U 1700.00 I
C.rbon DI.ulflde 47 47 0 9.47 5 U
.1,1-Dlchlor08thene 47 47 0 9.47 5 U
1,1-Dlchlor08thlnl 47 47 0 9.47 5 u
Tr8118-1,2-Dlchlor08thene 34 34 0 12.50 25.00 U
1,2-0Ichloroethene (totll) 13 13 0 2.66 5U
Chlorofortl 47 46 1 9.40 5U 5.00 ..
1,2-Dlchloroethlnl 47 33 14 11.24 5 U 120.00
2-lut- 47 44 3 22.10 9U 130.00
1,1,1-Trlchlor08thene 47 46 1 9.39 5 U 6.00 ..
Clrbon T.trlChlorlde 47. 47 0 9.47 5 U
Vinyl Ac.t.t. 47 47 0 18.96 9U
Ir08Odlchlor_thlnl 47 47 0 9.47 5 U
1,2-Dlchloropropene 47 47 0 9.47 5 U
cl.-1,3-Dlchloropropene 47 47 0 9.47 5 U
Trlchloroethene 47 47 0 9.47 5 U
DlbrG8Ddhlor_thlnl 47 47 0 9.47 ~U
1,1,2-'rtchloroethlnl 47 47 0 9.47 5 U
lena- 47 47 0 9.47 5 U
'rlnl-1,3-Dlchloropropene 47 47 0 9.47 5 U
2-Chloroethylvlnyl.th.r 0 0 0
Ir08tfortl 47 47 0 9.47 5 U
4-Methyl-Z-pent- 47 47 0 18.96 9U
Z-H.II- 47 47 0 11.96 9U
'.trichloroethene 47 47 0 9.47 5 U
1,1,Z,Z-'.trichloroethlnl 47 47 0 9.47 5 U
'oluene 47 4Z 5 9.3Z 1 .. 3 ..
ChlorGbenl- 47 47 0 9.47 5 U
Ethylblnllnl 47 46 1 9.49 3 .. 3 ..
Styr- 47 47 0 9.47 5 U
'otllXylenn 47 45 2 9.19 5 U 13.00 ..
--....en I. flr.t cOlpUted.t Individual .tatlons and then lverl8ed; If r88Ult qualifier I. U, .tatlatlc. Ire calcullted using 0.5 th..reported r..ult.
11$"0 Itand8rd, UaAnllyzed but not detected, ...pr..ent below Detection at.lt, I"r..ent In II"', EeEltl.ted Value
-------
Sum88ry Tabte for 5011 Boring Totat Metat Cont..lnents
Mound Area
Resutts reported In ,,/kg
Ni8Mtr of NUlliber of Nl8ItJer of Averalle of Mlnl- of Ma.l- of
AnIIt yte Re.utt. Non-Detects "It. AU Vatue." Att Vatue. Vatues
AII8I... (AI) 8 0 8 11114.29 4nO 23200
Ant I...,., ($b) 8 8 0 6.0000 12.00 U
Ar.enlc (A.) 8 0 8 8.4114 5.3 13
larll8 (Ia) 8 0 8 n.2851 50 100
leryl I 118 (Ie) 8 8 0 0.5000 1.00 U
C_118 (Cd) 8 2 6 1.9071 1.00 U 3.7
Catcll8 (Ca) 8 0 8 59621.43 1600 136000
C..118 (C.) 0 0 0
ChrOl8l18 (Cr) 8 2 6 6.1500 2.00 U 13
Cobatt (Co) 8 8 0 5.0000 10.00 U
Copper (Cu) 8 4 4 4.6071 5.00 U 8.2
Iron (fe) 8 0 8 11039.29 1130 18900
Leed (Pb) 8 0 8 6.1286 3.5 9.4
Llthll8 nl) 0 0 0
Magnnll8 (Mil) 8 0 8 2820..114 1440 5260
"angane.e (Mn) 8 0 8 141.5114 78 230
Mercury ("g) 8 1 1 0.0614 0.1 U 0.13
Mol ybdenta(Mo) 0 0 0
Nickel (NI) 8 2 6 9.0500 8.0 15
pot...118 (Ie ) 8 3 5 '044.286 '000 U 1150
Selenll8 (Ie) 8 8 0 0.5000 '.00 U
II lver (All) 8 8 0 '.0000 2:00 U
SOdII8 (lIa) 8 8 0 500.0000 1000 U
Itrontll8 (Ir) 8 0 8 48.5000 24 120
Tha" 118 HI) 8 8 0 1.0000 2.00 U
Tin (In) 0 0 0
V8fl8d118 (V) 8 0 8 19.1429 '2 55
Zinc (In) 8 0 8 27.0714 '2 46
.....een I. flr.t c~ted at Indlylduat .tatlons end then ayerilled; If resutt qualifier I. U, .tltl.tlcs are cltcul.ted using 0.5 the reported result.
115-110 Standard, U-AnIItYled but not detected, "-Pre.ent betl* Detection ii_it, I"r..ent In Itri, E-Estl_ted V.tue .
-------
5~ry T8ble for 5011 Boring Tot.l M.t.l Cont..lnenta
903 P8d Arel
R.sul tl reported In III/k,
IIUlllber of IIl.IItJer of IllIIIber of Averille of Mlnl- of "'111- of
Anllyt8 .HUI ta lIon'Detecti Hlta All Valun" All Valun Vilun
AlUlIr.. (AI) 1D 0 '0 10670.00 4040 18900
Anti...., CSb) 10 10 ° 5.0950 5.6 U
Araenlc CAa) 10 . 0 10 6.9080 2.5 11.8
IlrlUl Cia) 10 1 9 94.3785 .035 216
I.ryl I I.. (I.) '0 9 1 0.5nO 0.94 U 1.140
cal.. (Cd) 10 5 5 1.8850 0.94 U 5.4
Cllcl.. (Ca) 10 0 10 26937.00 1600 7'9000
C..IUI (Ce) 2 2 0 161.0000 ZOOU
Chr_I.. (Cr) 10 0 '0 11.6840 3.64 20
Cobalt (Co) 10 9 1 4.4580 4 U 5.61
CGFPIr CCu) 10 3 7 8.3870 4.54 U 19.8
Iron (fe) 10 0 10 10211.00 4020 18500
Le" CPb) 10 0 10 8.9880 1.6 22.8
Llthl.. (LI) 5 4 1 .8.5420 10 U 12.71
"1...1.. ("8) 10 0 10 2438.200 752 3700
1I8ntI..... (tin) 10 0 10 236.8100 35 1080
Mercury (H,) 10 8 2 0.0110 0.10 U 0.19
MolybdenUl("o) 2 2 0 9.6750 18.7 U
IIlckel (III) '0 3 7 8.8525 5.45 U 16
Pot..a". Cle ) 10 3 1 1318.300 649 3020
Selenl.. CSe) 10 10 0 0.3950 .~1 U
Silver (A,) 10 '0 0 0.7635 .4 U
SodlUl (III) 10 7 3 430.1000 175 427
Strontluil (Sr) 10 2 8 46.1820 5.32 81.6
'''IUI.. Hi) 10 10 0 0.1625 .44 U
Un (In) 2 2 0 9.6750 18.7 U
V8nldI.. (V) 10 0 10 25.2520 9.32 50.5
Zinc cZn) 10 0 10 29.8400 10.9 49
888Mean II flrlt c08pUt8d It Individual Itltlonl end then Iver.llld; If r..ult qualifier II U, It.tlltlca .re calcul.ted using 0.5 the reported r..ult.
IIS"o Standard, lPAnilped but not detected, ""r..ent belCN Detection 1I81t, I"r..ent In Ilri, E8£atl_ted Value .
-------
son. SAMPLING RESULTS
-------
S~ry T8bI. for Sol I Boring Tot.1 Met.1 Cont_lnenil
E..t Trench.. Are.
...uttl reported In .., kg
NUlliber of Nl8ber of NllltMr of . Aver.ge of "Inl- of "ext- of
ANlyt. ...ul t8 Non.Detect. Hltl Ait V.lun" Ait V.lun V.lun
Ah.-I... CAI) 44 0 44 917J.910 1650 25300
Anti... CSb) 44 42 2 10.1625 11.6 U 15.3
Areenle CAI) 44 3 41 8.6093 1.7 U 30.8
I.rh.- CI.) 44 15 29 62 .6699 40.00 U 154
8uylt 1111 CI.) 44 39 5 0.5598 0.41 U 1.7
C_IIII CCd) 44 20 24 1.7418 0.81 U 6.2
C.lellll CC8) 44 1 4] 43932.30 1000.00 U 175000
C..IIII CCI) 11 11 0 1n.6563 204 U
CIIr_11II CCr) 44 2 42 10.7519 2.00 U 34
Coblitt .CCo) 44 40 4 5.3391 4.1 U 12.8
Copper CCU) 44 13 31 6.9833 5.00 U 27
Iron Cf.) 44 0 44 9992.404 1140 42700
l.ed CPb) 44 0 44 5.9426 1.2 45.6
LI thl III CLI) 11 8 3 9.3063 5.3 7.0
1188"811 III CMg) 44 4 40 2207.686 1000.00 U 4950
"8"1"" CRn) 44 0 44 144.7580 6.9 584
Mercury CHg) 44 30 14 O. 1013 0.080 0.33
Mol ybd8nu8(Mo) 11 11 0 21.1438 19.3 U
lick.. CII) 44 16 28 11.5288 8.00 U 40
Pot"lllII C( ) 44 24 20 927.6923 891 4170
S,'enllll CIe) 44 4] 1 0.7451 0.42 U 6.5
Illver CAg) 44 44 0 1.17'98 1:' U
Sodllll Cia) 44 40 4 489.1769 60.5 13n
Itrontllll CSr) 44 19 25 58.S147 16 J 279
Than 1111 eTI) 44 44 0 1.0046 0.60 U
Tin CIn) 11 10 1 S5.6719 20.6 U 29.1
vanedllll CV) 44 ' 4] 22.S532 10.4 U 51
Zinc (In) 44 ' 4] :SO. '7'98 4.00 U 130
**-M8en II flrlt CGlpUted at Individual It.tlone and then .veraged; If r..ult quallfl.r II U, It.tl.tlcl .r. cllculated uelng 0.5 the reported r..ult.
NS-No St8nd8rd, UaAnllped but not detected, J-Pr..ent below Detection 1I.lt, I"r..ent In I''', E-Eatl_ted v.lue
-------
SlnIIIIry table of Soil Boring Inorganic Cont.lnant.
Mcxnt Arel
Ni8er of Nuar of Nuar of Averlge of "Inl- of "..1- of
An81yt. .nul t. Non-Datect. Hlta All Value." All Value. Vllues
pH (pH WtUI) 8 0 8 8.9421 8.15 9.25
SuHI. (1II/kg) 7 7 0 100.0000 200 U
Cyenl., Totll (IIIIt,) 8 8 0 1.1607 1.25 U
01 I end Gr.i.. (1I8/t,) S ] 0 0.8500 1.7 U
Nltrlt'-'ltrlta II . (1II/t,) 0 0 0 ........
,
..""an II flrlt cGIpUtad It Individual Itltlona end then Iverlged: If relult qualifier II U, Itatf.tfc. are calculated using 0.5 the reported re.ult.
NS-No Itendard, U-Anelyzed but not detected, J-Pr..ent' I ,netectlon U.It. I"r..ent In II"'; E8Eltl_tld VII..
-------
S~rv Table of Soil Iorl", lnorg....lc Cont_I{I8I\tl
. .
903 Ped Aree
IIwmer of lI~r of I1l8ber of Aveng. of "Inl- of ".xl- of
..tyte .nul tl lIan-Detectl Hltl AU V.lwe" AU V.lwe V.luel
pH (pH ",Itl) 10 0 10 8.2360 7.43 8.75
SUlfide CIIIJ/q) 10 10 0 80.2000 2U
eVlnlde, Totel (lIIIIkl) 8 5 3 4.3675 0.25 U 19.8
on end Grene (lIIIIkl) 8 7 1 33.5750 1.7 U 261
'Itr.te'lIltrlte .1 . (lIIIIkl) 2 0 2 2.4000 1.7 3.1
""'elft II flrlt c08pUted .t IndIvIdual It.tlana end then .ver.ged; If rltult qultlfler II U, Itatlltici .re caleul.ted usIng 0.5 the reported rltult.
IIS-llo Stend8rd, IJaAn8lVled but not detected, JaPr..ent below Oetectlan U.lt, I"r..ent In Ilri, EaEltI_ted V.lue
-------
APPENDIX B
GROUND-W A TER SAMPLING RESULTS
. .
SUBSURFACE IMIIRA
-------
5U1188ry Table of 5011 lorlng Inorg8/'llc Cont_lnantl
E.lt Trenchel Are.
Iwmer of liMIer of Hlldler of Averege of "Inl- of ".xl- of
Anllyt. Rnultl Hon-Oetectl Hltl All V.luee** All V.luee V.luee
pH (pH ""ltl) 45 0 45 8.0530 6.9 8.87
SUlfide (lIIIkg) 46 44 2 67.1389 2 U 4
Cylnlde, Tot. I (1III1t,) 20 17 3 1.5771 2.5 3.33
011 end Gr.... (lIIIltg) 14 11 3 2.4350 1.7 15.0
Iitrate-Iltrit. .1 I (lIIIltg) 13 4 9 1.6667 1.0 4.3
*.""en II flrlt COIpUted .t Individual It.tlone end then Iverlged; If r..ult quellfler II U, It.tlltici Ir. cilcul.ted Ullng 0.5 the reported relUlt.
15.10 It8nd8rd, U.Anllrzed but not detected, ".Pr..ent belCN Oetectlon 1I.1t, I.pr..ent In Ilenk, E-EltI_ted v.lue
It.tlone In thl. .r..: 1215389, 1217389, 1217589, 1218189, 1218589, 1218689, 1218789, 1218989, 1319789, IM3987, 1114087, 8114187, 8114287, 1114387,
-------
GROUND-WATER SAMPLING RESULTS
-------
APPENDIX 8-1
GROUND-W ATER SAMPLING RESULTS
RAW DATA
SUBSURFACE IMIIRA
-------
Page 110. Z
Ground Water Votatlta Orgenle Resutts
903 Ped Ar..
ResuU. reported In Utl/t
lie" Oat. '.'.1-Trlch '.'.Z.Z-T.tr 1.1.Z-Trlch 1.1-0Ichtor 1.1-0Ichtor 1.Z-0Ichlor 1.2-0Ichlor 1.Z-0Ichtor cla-1.3-0Ich tr_-1.Z-01 tr_-1.3-01 Z-Chloroethvl
lIi8Mr IlIIpled lorOlthene IChlorathene lorOlthene oeth- OIthene oethene oethene opropene hloropropene chlorOlthene ehloropropene Vinyl Ether
...... ..-... ...._a.... ............. .......... ........... ............ ........... ........... ........... ............ ............ ............. .............
om 25-M-88 5U 5 U 5 U 5 U 5 U 5U 5U 5 U 5 U 5U 10 U
0171 31-OCT-88 5U 5 U 5U 5U 5 u 5 U 5 U 5 U 5 U 5 U 10 U
0171 OZ-fEI-89 5U 5 U 5 U 5 U 5 U 5U 5 U 5 U 5 U 5U
om OZ~MY-89 5U 5 U 5 U 5 U 5.. 5U 5U 5 U 5 U 5U
om 08-AlJG-. Z J 5U 5 U 5 U 3.. 5U 5 U 5 U 5 U 5 U 5U 10 U
om Z9-IIOV-89 100 U 100 U 100 U 100 U 100 U 100 U 100 U 100 U 100 U 100 U
om ZJ-fEI-9O Z J 5U 5 U 5 U 5 5U 28 5 U 5 u 5 U
0171 ZO-IIOV-9O ZSU Z5U Z5U Z5U Z5 U Z5 U 30 Z5 U 25 U Z5 U
0171 17-APl-ft 5D.U 50 U 50 U 50 U 50 U 50 U 32 .. 50 U 50 U 50 U
Welt Oate 2-Butanone Z-Hexanone 4-Methvt-Z Acetone Benzene IrC8ldlchl Ir_for. Ir- Carbon Carbon Tet Chloro Chloro
lIi8Mr SlIIpled pentanone or-th- _thene disulfide trIChtorlde benzene ethane
II..... ....... ........... ............. .......... ........... ........... ag......... ........... ............ ............ ............. ........... ..........
0171 25-M-II 10 U 10 U 10 U 10 U 5U 5 U 5 U 10 U 5U 830 5 U 10 U
om 31 -OCT -88 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5U 790 5 U 10 U
om OZ-fEI-89 10 U 10 U 10 U 10 U 5 U 5 U 5U 10 U 5U 600 5U 10 U
0171 OZ-MY-89 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5U 690.. 5U 10 U
0171 08-MJG-89 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5U 560 5U 10 U
om Z9-IIOV-89 . 200 U 200 U ZOO U 200 U 100 U 100 U 100 U ZOO U 100 U 3JOO 100 U ZOO U
0171 23-fEI-9O 10 U 10 U 10 U 7 .I 5 U 5 U 5 U 10 U 2.1 1500 5U 10 U
om ZO-IIOV-9O 50 U 50 U 50 U 50 U 25 U 25 U Z5 U 50 U ' Z5U 860 Z5U
50 U
0171 .17-APl-91 100 U 100 U 100 U 100 U 50 U 50 U 50 U 100 U 50 U 1400 50 U 100 U'
We" Date Chlorofol'll Chloro Olbr08OChI Ethyl Methvlene Styrene Tetrachtor Toluene Totat Trlchloro Vinyl Vinyl
lIi8Mr IIIIpled _thene orC81thene lenzene Chloride OIthene Xyl... ethene . Acetate Chloride
....- ..-- ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
0171 25-JUL-88 Z90 10 U 5 U 5U 5U 5U 54 5U 5U 203 10 U 10 U
0171 31-OCT-88 50 U 10 U 5U 5U 8 5 U 110 5 U 5U Z90 10 U 10 U
0171 O2-fll-. DO 10 U 5U 5 U 5U 5U 78 5U 5U Z90 10 U 10 U
0171 O2-MY-. 200 10 U 5U 5 U 5 U 5 U 69 5 U 5 U Z30 10 U 10 U
0171 OI-AlJG-. 220 10 U 5U 5U Z J 5 U 62 5 U 5 U 180 10 U 10 U
0171 Z9-IIOV-. 170 200 U 100 U 100 U 9J .II 100 U 180 100 U 100 U 560 ZOO U ZOO U
0171 ZJ-fEI-9O 150 I 10 U 5 U 5 U 8 I 5 U 98 5U 5 U J60 10 U 10 U
0171 20-1IOV.9O 130 50 U 25U Z5 U "I Z5 U 64 25 U Z5 U Z90 50 U 50 U
0171 17-APl-91 140 100 U 50 U 50 U 50 U 50 U 97 50 U 50 U J60 100 U 100 U
U-An81vzed but not detected J-Pr..ent betOM detection t 1.lt E-Estl..ted Vatue O-Dlluted S88pte
-------
P.g. No.
Ground W.ter Vol.tlle Orgenle R..ult.
903 Ped Are.
R..ult. reported In Ut/l
lieU O.te 1,1,1-Trlch 1,1,Z,Z-Tetr 1,1,2-Trlch 1,1-0lchlor 1,1-0lchlor 1,2-0lehlor 1,2-0lchlor 1,2-0lchlor el.-1,3-0Ich trana-1,2-01 tr_-1,3-01 Z-Chtoroethyl
lIumef 1..led 'oroeth- echtoreth- 'oroeth- oethane oeth- oethane oethene opropane hi oropropene cMoroethene ch'oropropene Vlny' Ether
...... ....... ......._a. ............. .......... ........... ............ ........... ........... ........... ............ ............ ............. ............~
0171 -AUG-86 5U 5U 5U 5 U 5 5 U 5 U 5 U 13 5U 10 U
0171 Q9-1CAR-87 4 4U 12 4 U 38
0171 30-m-87 4U 4U 22 24 4 U
0171 01-""'-87 4U 4U 22 24 4 U
0171 21-""'-87 4 U 4U 4 U 400 4 U
0171 02-JUL-87 2892 4U 535 4 U 346
0171 14-OCT-87 5 U 5U 13 5 U 5 U
0171 26-'EI-II 5 U 5U 5U 5 U 12 5 U 5 U 5U 5 U 5 U 10 U
0171 18-APR-II 192 5U 5 U 5 U 7 5 U 5U 5 U 5 U 5 U 10 U
weu Oete 2-Butenone 2-"e.enone 4-Methyl-2 Acetone Benzene BrCllllldlcht Br_fo... Br- C.rbon Cubon Tet Chtoro chi oro
Nlllber I..' ed pent- or_th- _th- dl.uUlde tr.chlorlde benz- eth-
...-- ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
0171 - -AUG-86 10 U 10 U 10 U 261 5 U 5 U 5 U 10 U 3 J 1600 5U 10 U
0171 Q9-1CAR-87 4800
0171 30-APR-87 2300
0171 01-""'-87 2300
0171 21-""'-87 3000
0171 02-JUL-87 1405
0171 14-OCT-87 440
.
0171 26- 'EI-II 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5U 467 5 U 10 U
0171 .18-APR-II 10 U 10 U 10 U 10 U 5 U 5 U 5U 10 U 5U 964 5 U 10 U .
weu o.te Ch'orofo... Ch'oro OlbrC8DCh' Ethy' Methyl- Styr- 'etrecMor To'uene Tot.' Trlehloro Vinyl VI ny,
Numef ",'ed _th- orC88th- 11nI- Ch'orlde Nth- XY''''' ethene Acetete Ch'orlde
--... --... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
0171 -AUG-86 180 10 U 5U 5U 15 5 U 65 5 U 5U 350 10 U 10 U
om Q9-1CAR.87 220 50 1120
0171 3O-m-87 18 108 1200
0171 01-""'-87 18 108 1200
0171 21-""'-87 4U 800 2000
0171 02-JUL-87 1525 147 691
0171 14-OCT-87 612 132 ZZ2
0171 26-fEI-. 634 10 U 5 u 5U 14 5 U 100 5U 5 U 326 10 U 10 U
0171 18-m-1I 455 10 U 5 U 5U 5 U 5 U 111 5U 5 U 378 10 U 10 U
U-An81yzed but not detected J-Pr..ent be'CIIf detection ".It E-E.tl..ted V.'ue 0801 luted S8qlI.
-------
Pa8' 110. 4
Ground Uater Volatile Or88nlc a..ult.
903 Pad Ar.a
.nuUI reported tn UIIL
lieU Dlt. 1,1,1-Irlch 1,1,2,2-I.tr 1,1,2-Irlch 1,1-Dlchlor 1,1-0lchlor 1,2-0lchLor 1,2-0lchLor 1,2-0lchior ct.-1,3-0Ich trIM-',2-01 tr_-',]-DI 2-ChLoroethyl
IIUlber IIIIPL ed 'oroethene IChtor.thene 'oroethene oethene oethene oethene oethene opropllW h'oropropene chtoroethene chloropropene VinyL Eth.r
...... ..--.. ........... ............. .......... ........... ............ ........... ........... ........... ............ ............ ............. .............
0271 ]1-OCl-88 26 5U 9 28 10 5 U 5 U 5 U 5 U 5 U 10 U
0271 01-'EI-89 5 U 5 U 5 U 11 5 U 5 U 5 U 5 U 5U 5 U
0271 01-leAY -89 5 U 5U 5U 8 .5 U 5 u 5 U 5 U 5 U 5 U
0271 08-MJG-89 16 5 U 6 12 ] J 5 u 5 U 5 U 5 U 5U 5 U .10 U
0271 ]O-IICW-89 120U '20 U 120 U 120 U 120U 120 U 380 120 U 120 U 120 U 250 U
0271 21-110'1-90 37 4 J 4 IJ J8 5 2 J 290 OJ 3 J 5 U 5 U
0271 19-APR-9' ZSU 25U 1 J 13J 25 U 25 U 100 25 U 25 U 25U
0271 '0-SEP-91 250U 250U 250U 250 U 250 U 250 U 250 U 250 U 140 J 250U
1181 17-'EI-88 217 5 U 5U 5U 5 U 5 U 5U 5 U 5 U 5 U 10 U
lieU Dlt. 2-lUtlnOM 2-"ulnOM 4-Methyl-2 Acetone Benzene BrClllllldlchL Ir_for'll Br- Carbon Carbon 'et Chloro ChLoro
IIlJIber SlIIPl ed pentlnCll'l8 orCIMthene -th- dlluUlde trIChloride benzene .th-
...... ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
0271 31-OCl-88 10 U '0 U 10 U 10 U 2 J 5 U 5 U 10 U 5 U 5 U 5 U 10 U
0271 01-'EI-89 10 U '0 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U .5 U 5 U 10 U
0271 01-M'-89 10 U 10 U 10 U 10 U 5 U 5 U 5U 10 U 5 U 5 U 5 U 10 U
0271 08-MJG-89 10 U 10 U 10 U 10 U 0.9 J 5 U 5 U 10 U 5 U 5 U 5U 10 U
0271 ]O-IIOV-89 250 U ZSOU 250 U 250 U 120 U 120U '20 U ZSOU 120U '20 U 120 U ZSOU
0271 21-1IOV-9O 10 U 10 U '0 U 7 IJ 2 J , J 5 U 10 U 5 U 5U 5 U 10 U
0271 19-APR-" 50 U 50 U 50 U 16 J 25U 25 U ZSU 50 U 25 U 25U 25U 50 U
0271 10-SEP-91 500 U 500 U 500 U 500 U 250 U 250 U 250U 500 U ' 250 U ZSOU ZSOU 500 U
1181 "-'EI-88 10 U 10 U 10 U 10 U 5U 5 U 5 U '0 U 5U 495 5 U 10 U '
Weu Oat. Ch'orofor'll Ch'oro Dlbr-m' Ethy' Methyl- Styr- T.trlCh'or Toh... TotaL Trlch'oro. Vlny' VI ny'
IIl8IIr IIIIpLed _t"- orCIMthane lenIene Ch 'or Ide oethene .y'- eth- Acetate ChLoride
...- .--- ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
021' ]'-OCT-88 500 U 10 U 5U 5U 6 5 U 81 5U 5 U 8200 10 U 10 U
0271 01-'EI-89 5U '0 U 5U 5U 5U 5U '6 5U 5U 1200 '0 U '10 U
0271 01-M'-" 1 '0 U 5U 5U 5U 5 U 8 5U 5U 440 10 U 10 U
0271 08-MJG-89 160 .10 U 5U 5U 1 J 5 U 21 5 U 5 U 4400 10 U '0 U
0271 ]O-IIIJV-89 '20 U 250U 120 U 120 U 61 JI 120 U J4J 120U 120 U 6600 E 250U 250U
0271 2' -1IOV-90 200 OJ 10 U 5U 5 U 2 IJ 5 U 100 1 J 5U 7500 0 10 U 10 U
0271 19-APR-91 58 50 U ZSU ZSU 25U 25 U 33 ZSU 25 U 2200 0 50 U 50 U
0271 10-SEP-91 120 J 500 U 250U 250U 110 IJ 250 U ZSOU ZSOU ZSOU 5800 500 U 500 U
1187 1'-'EI-88 129 '0 U 5U 5 U 5 U 5 U 20 5 i,I 5U 824 10 U 10 U
UaAnaLyzad but not ..III(;tad Japre.ent belOll detection U.1t f.-Eatl..ted VaLue ~,oILutad S.-ple
-------
P888 110. 3
Ground Water Votltlte Or8enlc Resutt.
903 PIId Area
...utt. reported In ue/t
Vau Oete 1,1,1-'rlch 1,1,Z,Z-'etr 1,1,2-'r'ch 1,1-0'chtor 1,1-0'chtor 1,2-0Ichtor 1,2-0lchtor 1,Z-Olchtor cl.-1,J-Olch .tr_-1,2-01 tr_-1,J-OI Z-Chtor08thyt
II..... 18IIptlld toroeth- 8ichtoreth- tor08th- oeth- oethene oeth- oethene oprap8n8 htorapropene chtor08th- chtoropropene Vlnyt Eth.r
...... ....... ........... ............. .......... ........... ............ ........... ........... ........... ............ ............ ............. .............
0171 IO-SEP-91 30..1 TZU TZU TZU TZU TZU TZU TZU TZU TZU
027' -AUG-86 4 .I 5U 5 U 2 .I 2 .I 5U 5 U 5U 79 5 U 10 U
0271 11-MAl-17 4U 4U 4 U 4 U 50
0211 09- API- 81 4U 4U 4 U 4U 4 u
027' 21-"'" -81 4U 4U 160 4 U 4 U
02r1 02-JUl-11 4U 4U 673 4 U 4 U
0271 26-FII-II 5U 5 U 51 12 I 5 U 5 U 5 U 5 U 5 U 10 U
0271 20-APl-1I 5U 5 U 5U 14 5 U 5 u 5 U 5 U 5 U 5U 10 U
0211 25-JUL-II 5U .5 U 5U 21 5 U 5 U 5 U 5U 5 U 5U 10 U
Vau Olte 2-lutanone Z-Hexenane 4-Methyt-2 Acetone Benzene BrOllOdlcht Br18»10... Brl8» Clrbon Cerbon 'et Chtoro Chtoro
I1l8ber ...ted pentenqne or_th- -th- dl.utflde trachtorlde benz- .th-
...... ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
0171 10-SEP-91 140 U '40 U 140 U 45 8.1 nu nu nu 140 U nu 1800 TZU 140 U
0211 -AUG-86 4 .I 10 u 10 U 451 5 U 5U 5 U 10 U Z .I 5 U 5U 10 U
0271 11-MAl-17 4U
0271 09-APl-17 4U
0211 21-""'-81 40
0211 02-JtJl-87 4U
0271 26-FEI-II 10 U 41 10 U 10 U 5 U 5 U 5 U 10 U , 5 U 5U 5U '0 U
0271 2O-API-ll 10 U 10 U 10 U 10 U 5 u 5 U 5 U 10 U 5 U 5U 5U 10 U
0211 '25-JUL-II 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U 5 U 5 U 10 U .
Vau Oate Chlorofo... Chloro OlbrCI8IIChl Ethyl Methylene Styrene 'etrachlor 'ol~ 'otal 'rlchtoro Vinyl Vinyl
Millibar lallpled ileth- or_th- lenzene Chtorlde oethene Xytenu ethene Acetate Chloride
.--. ---- ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
0171 10-11'-91 170 140 U TZU 7ZU 15 I" TZU 100 TZU TZU 570 140 U 140 U
0271 -AUG-86 19 10 U 5U 5 U Z .I 5U 15 1 .I 5 U 4500 10 U 1 ..
0211 H-MAl-81 260 4 28100
0211 09-NII-81 400 1000 26000
0211 21-""'-87 60 440 24800
0271 02-- -87 4U 192 9440
0271 26-FII-88 231 10 U , U 5 U 12 5 u 5 U 5U 5 U mo 10 U 10 U
0211 20- NIl-II 2Z1 10 U 5 U 5 U 5 U 5 U 50 5 U 5 U 6851 10 U 10 U
0211 25-JUL-II 216 10 U 5U 5 U 5 U 5U 51 5 U 5U 8520 10 u 10 U
UaAn8lyzed but not detected ""'re..nt below detection U.1t I-I.tl..ted Vetue OoOlIutlld Sillpte
-------
P.8e No- 6
Ground W.ter Vol.tll. Or8enle ...ult.
903 Ped Are.
.eaul t. reported In UIIII
YeU O.te t. t. t-Trlch 1.1.Z.Z-T.tr 1.1.Z-Trlch t.1-0lchlor 1.t-olchlor 1.Z-olchlor 1.Z-olchlor 1.Z-olchtor cla-1.3-olch trena-t,Z-OI trena-1,3-ot 2-Chloroethyl
N~r ...Ied loroeth- 8Chloreth- loroeth- oeth- oethene oeth- oethene opropene hloropropene chloroethene chloropropene Vinyl Eth.r
...- ....... ..._a..... ............. .......... ........... ............ ........... ........... ........... ............ ............ ............. .............
1187 06-SE'-91 27 I" 100 U 100 U too u tOO U . tOO U 100 U 100 U 100 U too u
1287 51-AUG-87 5U 5U 5U 5 U 5 U
1287 25-FEI-88 5 U 5 u. 5U 5U 5U 5 U 5 U 5 U 5 U 5 U 10 U
1287 2O-AP. . " 5 U SU 5 U 5 U 5 U 5 U 5 U 5 U 5 U .10 U
1Z87 25-.lUL~"u ~" 5 U SU 5 U 5 U 5 u 5 u 5 u 5 u 5 u 10 U
tZ87 14-11OV -89 10 U to U to U 10 U to U to U 10 u 10 u to U 10 U
1287 24-JAI-90 SU 5 U 5U 5U 5U 5 U 7 5 u 5 U 5 U
t287 14-JdI-90 t.. 5 U 5U SU 5U 5 U 5 U 5 U 5U 5U
1287 20-11'-90 10 U 10 U to U 10 U to u to u 2 J tou 10 u to U
YeU o.t. 2-But..- 2-H.II'" 4-Methyl-Z Acetone Benzene Br08ldlchl BrC80fol'll BreaD C.rbon C.rbon Tet Chloro Chtoro
lI~r ...led pent..- or_thane _thane dlaulflde trIChloride benzene ethlne
...... ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........e.. ..........
1187 06-SEP-91 200 U 200 U 2oo'U 200 u 100 U 100 u too u 200 u tOO U 6tO tOO U 200 u
1287 31-AUG-87 58
1287 25-FEI-88 to U 5U 10 U 10 U 5 U 5 U 5U 10 U 5U 20 5U 10 U
1287 20-AN-88 10 U to u to U 10 U 5 U 5 U 5U 10 U 5U 4J 5 U 10 U
1287 25-JUl-88 10 U to U 10 U to U 5 U su 5 u 10 U SU 27 5u 10 u
tZ87 14-1IOV-89 20U 20 U 20 U 20 U to U to U to U lO U to U 10 U to U 20 u
1287 24-JAI-90 10 U 10 U 10 U 10 U 5 U 5U 5U 10 U '- 5U 22 5U 10 U
1287 14-JUII-90 to u to U 10 u 10 U 5 U 5U 5U 10 U 5U 13 5U 10 U
1287 . 20-.'-90 20U ZOU 20 U 5 1.1 10 U to u to u ZOu to U 9 .I 10 U 20 U'
YeU' O.te Chlorofo1"8 Chloro olbrC8OChI Ethyl Methylene Styrene T8tr8chlor Tol- 'ot.l Trlchloro Vtnyl Vinyl
'~r I8IipI ed _thane or_th- Ihnz- Chloride oethene Xyl.,.. .thene Ac.t.te Chloride
.
.--- -.- ........... ............. .......... ........... ........... ........... ........... ............ ............ ......................... ..........
1187 O6-IEP-91 9ZJ ZOOU 100 U 100 U 100 U 100 U 45 J 100 U 100 U "00 ZOOU ZOOU
1287 31-MlG-87 » 4J 3570
1287 25-FEI-88 17 10 U 5U 5U 9 5U 54 5U 5U 547 10 U 10 U
t287 20-"'-88 " 10 U 5U 5U 5U 5U 57 5U 5 U 751 10 U to U
1287 25-_-88 17 10 U 5U 5U 5 U 5U 42 5 U 5U 528 to U 10 U
1287 14-1IOV-89 to U 20 U to U to U to U to U to u 10 U to U 3tO 20u 20u
1281 24-"AI~90 15 to U 5U 5U 5 u 5U 37 5 U 5U J60 to u to u
1287 14-JUl-90 9 to U 5 U 5 U 2 "I 5 U 38 5U 5U 220 10 U to u
'287 2O-SE'-90 8.1 20 U 10 U to U to U 10 U Z8 10 U 10 U t70 20 U 20 U
u-An81 yzed but not detected ".'r....t bel. detection 1I.lt E.Eatl..ted v.lue D-oUuted -..I.
-------
P88e 110. 5
Ground W.t.r Vol.tll. OrganIc Result.
903 Pad Ar..
R..ult. reported In U8/1
Well D.t. 1,1,1-Trlch 1,1,Z,Z-T.tr 1,1,Z-Trlch 1,1-Dlchlor 1,1-olchlor 1,Z-Dlchlor 1,Z-Dlchlor 1,Z-Dlchlor cl.-1,3-Dlch tr_-1,Z-ol tr.ns-1,3-DI Z-Chloroethyl
IIlIIb8r 1..led loroeth- echlor.th- loroeth- oeth- oeth- oeth- oeth- oprap8M h~oropropene chloroeth- chloropr~ Vinyl Ether
..-- .....- ........... ............. .......... ........... ............ ........... ........... ........... ............ ............ ............. .............
1187 1J-AN-88 301 5 U 5U 5 U 4 .. 5 U 5 U 5 U 5 U 5 U 10 U
1187 08-AUG-88 5 U 5U 5U 5 U 5 U 5 u 5 U 5 U 5 U 5 U 10 U
1187 07-AUG-89 3.. 5 U 5 U 5 U 3 .. 5 U 5 U 5 U 5 U 5 U 5 U 10 U
1187 2)..1".90 7 5 U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5 U
1187 15.""-90 4.. 5 U 5U 5 U 4 .. 5 U 8 5 U 5 U 5 U
1187 18-SEP-9O 5 5U 5U 5 U 8 5U 10 5 U 5 U 5 U
1187 za-IOV-9O 50 U ~O U 50 U 50 U 50 U 50 U 50 U 50 U 50 U 50 U
1187 15......91 5 5U 5U 5 U 12 5 U 18 5 U 5 U 5 U
1187 16.AN-91 5 U 5U 5U 5 U 1Z 5U 5 U 5 U 5 U 5 U
Well o.t. Z-lut..... Z-Hex..... 4-Methyl-Z Acetone Ienz- IrC8ldlchi Ir_fonl Ir- C.rbon C.rbon Tet Chi oro Chloro
IIlIIb8r 1..led pent- or_th- -th- 'dllulflde trichloride benz- eth-
....- ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
1187 1J-AN-88 10.U 10 U 10 U 10 U 5U 5 U 5 U 10 U 5 U 436 5 U 10 U
1187 08-AUG-88 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U 605 5 U 10 U
1187 07-AUG-89 10 U 10 U 10 U 10 U 5 U 5 U 5U 10 U 5 U 270 5 U 10 U
1187 2)-.1"-90 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U 5Z0 5 U 10 U
1187 "-JUII-9O 10 U 10 U 10 u 10 U 5 U 5 U 5U 10 U 5U 670 5 U 10 U
1187 18-IEP-9O 10 U 10 U 10 u 5 I" 5 U 5 U 5U 10 U 5U 1000 D 5 U 10 U
1187 za-IOV-9O 150 I 100 U 100 U 100 U 50 U 50 U 50 U 100 U 50 U 660 50 U 100 U
1187 15-.1"-91 10 U 10 U 10 U 10 U 5 U 5 U 5U 10 U 5U 7500 5U 10 U
1187 . 16-AN.91 10 U 10 U 10 U 10 U 5U 5U 5U 10 U 5U 4000 5 U 10 U .
Well O.t. Chlorofor'll Chloro OlbrC80ChI Ethyl Methyl- 8tyr- T.trlchlor Toluene Tot.1 Trlchloro Vinyl Vinyl
IIlIIb8r 1IIIIp18d _th- or_th- 1hnI- Clllor I de oeth- Xyl... .th- ac.t.t. Chloride.
..- ..-.- ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
1187 13.AN-88 121 10 U 5 U 5 U 5 U 5U Z8 5 U 5 U 573 10 U 10 U
1187 08-AUG-88 129 10 U 5U 5 U 5 U 5U Z6 5 U 5U 1090 10 U 10 U
1187 07-g-89 88 10 U 5U 5 U 5 U 5 U 18 5U 0.8" 560 10 U 10 U
1187 D-""-9O 96 10 U 5U , U 5 U 5U 40 4.. 5U 1200 10 U 10 U
1187 15..1...90 19 10 U 5 U 5U 3..1 5U J2 5 U 5U 1800 10 U 10 U
1187 18-IIP-9O 92 10 U 5 U .5 U 91 5 U 461 ,.. 5U 2900 D 10 U 10 U
1187 za-IOV-9O 86 100 U 50 U 50 U 50 U 50 U 41 " 50 U 50 U 1900' 100 U 100 U
1187 15-"".91 96 10 U 5U 5 U 1 .. 5 U 62 5 U , U 2500 D 10 U 10 U
1187 16-AN-91 82 10 U 5U 5 U 5 U 5 U 49 5 U 5 U 1400 0 10 U 10 U
u-anelYled but not detected ""r..ent below detection 1I.lt E-E.tl..ted V.lue DoDHutad 5..1.
-------
Page 110. 8
Ground Vater Voiatlie Orgenle .esuits
90J Pad Area
.esuitl reported In ue/i
Weu Olte 1.1,1-Trleh 1,1,2,2-Tetr 1,1.2-Trleh 1,1-0lchior 1,1-Dlchior 1,2-Dlchior '.2-Dlchior 1,2-Dlchior cll-1,J-Dlch tr_-1,2-DI tr_-1,J-01 2-Chioroethyi
lllllber 18IIIpi ed toroeth- khtoreth- toroeth- oeth- oethene oeth- ,oeth- opropane hioropropene chtoroethene chtoropropene Vlnyt Ether
...... ....... ........... ............. .......... ........... ............ ........... ........... ........... ............ ............ ............. .............
1487 02-AUG-89 5U 5 U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5U 5 U 10 U
1487 ze-IICJV-8' 10 U 10 U 10 U 10 U 10 U 10 U 10 U 10 U 10 U 10 U
1487 14-JIJI-9O 5 U 5 U 5 U 5 U 5 U 5 U 5U 5 U 5 U 5U
1487 18-SEP-9O 10 U 10 U 10 U 10 U 10 U 10 U 10 U 10 U 10 U 10 U
1487 ZO-IICJV-9O 5U 5 U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5 U
1487 1""U-91 1" 5 U 5 U 5 U J ,I 5 U 2 " 5 U 5 U ,5 U
1487 15-AN-91 5U 5U 5U 5U 1 " 5 U 1 " 5 U 5 U , U
1487 OS-SEP-91 12 U 12 U 12 U 12U 12 U 12 U 12 U 12U 12 U 12 U
1587 10-.P-87 5 U 5U 5 U 5 U 5 U
Weu Date 2.lutanone 2-Hellanone 4-Methyi-2 Acetone lenz- IrG8Xileht IrC80fol'll IrCllllO Carbon Carbon Tet Chi oro Chi oro
lllllber S8IIIpted pentanone orOllleth- _th- dlluUlde tr8Chioride benz- ath-
...... ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
1487 02-MJG-89 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5U 100 5 U 10 U
1487 ze-IICJV-89 ZOU 20 U 20 U 20 U 10 U 10 U 10 U 20 U 10 U 450 10 U 20 U
1487 "-JUII-9O 10 U 10 U 10 U 10 U 5 U 5 U 5U 10 U 5U J80 5 U 10 U
1487 18-.P-9O 20 U 20 U 20 U " 1,1 10 U 10 U 10 U 20 U 10 U 1JO 10 U 20 U
'1487 20-1ICJV-9O 10 U 10 U . 10 U 5 1,1 5 U 5 U 5 U 10 U 5U 180 5 U 10 U
1487 1 HAiI-'1 10 U 10 U 10 U 14 I 5 U 5 U 5 U 10 U 5U 4JO 0 5U 10 U
1487 15-AN-'1 10 U 10 U 10 U 10 U 5U 5 U 5U 10 U 5U Joo D 5 U 10 U
1487 OS-IEP-91 Z5U Z5U 25 U Z6 12 U 12 U 12U Z5U 12 U 350 12 U nu
1587 .10-.P-87 4080
Weu Data Chtorofor8 Chioro OlbrC8Oeht Ethyt Methytene Styrene Tatrac:hior Toiuene Totli Trlehioro Vlnyi Vlnyi
lllllber S8IIIptad -th- or-th- lenzene Chtorlde oethene lCyt... athene Acetate Chtorlde
--. ._a- ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
1487 02-_-89 11 10 U 5 U 5 U 5 U 5 U 2 " 5 U 5U 34 10 U 10 U
1487 28-"-89 36 20U 10 U 10 U 7..1 10 U 4 " 10 U 10,U 1ZO 20 U ZOU
1487 14-"'-90 ]8 10 U 5U 5U 5 I 5U 7 2" 5U 170 10 U 10 U
1487 18-11'-90 20 20U 10 U 10 U 10 U 10 U 10 U 10 U 10 U 59 20 U 20 U
1487 2O-1ICJV-9O 12 10 U 5 U 5U 1 I" 5 U 2 " 5 U 5U 54 10 U 10 U
1487 11-""-91 36 10 U 5 U 5U 5 U 5U 8 5U 5U 160 D 10 U 10 U
1487 1'-APl-91 27 10 U " U 5 U 5U 5 U 4 .I 5 U 5U 110 10 U 10 U
1487 OS-UP-91 31 Z5U 12 U 12 U 8 1,1 12 U 4 " 12 U 12 U 120 Z5U 25 U
1587 10-UP-87 5U 900 510
U-AnIIiyaed but not detected J-Pr..ent bet ow detection tI_lt E-E8tl..ted V.iue DaD I iuted S8IIIpie
-------
Pqe 110. 7
Ground Water Volatll. Orlanlc Results
903 P8d Ar.a
Result. reported In "11/1
Vau Dlt. 1.1.1-trlcll 1.1.Z.Z-Tetr 1.1.Z-Trlch 1.1-Dlchlor 1.1-Dlchlor 1.Z-Dlchlor 1.Z-Dlchlor 1.Z-Dlchlor cla-1.3.Dlch trana',.Z-DI trlns'1.3-DI Z-Chloroethyl
lI...r lIIIIpi ad 10r08th- achlor.tb- loroath- oath- oethene oeth- oath- . opropane hloropropena chloroethenit chloropropana Vinyl Eth.r
...... ....... ........... ............. .......... ........... ............ ........... ........... ........... ............ ............ ............. .............
1281 28-1ICJV-9O '" 5 U 5U 5 U 5 U 5 U 4 " 5 U 5 U 5 U
1281 1S-JAII-91 1.. 5U SU 5 U 5 U 5 U 5 5 U 5 U 5U
1287 O9~SlP-91 17 U 17 U 17 U 17 U 17 U 17 U 17 U 17 U 17U 17 U
1487 31-AUG-87 5U SU 5 u 5 u 5 u
1481 29-fEI-88 5U 5U 5U 5 U 5 U 5 u 5 U 5 U 5 U 5 u 10 U .
1481 08-AUG-88 5U 5U 5U 5 U 5 u 5 u 5 u 5 u 5U 5 U 10 U
1481 26-OC:T'88 5U 5U 5U 5 U 5 U 5 U 5 U 5 U 5 U' 5 U 10 U
1487 Z5-JAII-89 5 U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U
1487 24-AP!I-89 5U 5U 5 U 5u 5 U 5 U 5 U 5 U 5u 5 u
Vall Dat. 2-8ut- Z-H.x- 4-Mathyl-Z Acetone 8enrene 8r(8Odlchl IrC80fol'll Br08lO Carbon Carbon 'et Chi oro Chi oro
lI...r SIIIIpI ed pent- or_th- _th- dl.uUlde trachlorlde benzene .th-
...... ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ .~........... ........... ..........
1Z81 Z8-1IOV-90 10 u 10 U 10 U 10 U 5 u 5 u 5 U 10 U 5 U 1Z 5 U 10 u
1Z87 15-JAII.91 10 U 10 U 10 U 158 5 U 5 U 5 U 10 U 5 U 17 5 U 10 U
1281 09-SEP-91 nu JJU nu nu 17U 17U 17 u nu 17U 17U 17 U 33 U
1487 51'AUG-81 404
1481 29-fEI-88 10 U 10 U 10 U 26 5U 5 U 5 U 10 U 5 U 18 5 U 10 U
1487 08-AUG-88 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 u 110 5 U 10 U
1481 Z6-OCT-88 10 U 10 U 10 U 10 U 5 U 5 u 5 u 10 U 5U 77 5 u 10 U
,
1481 Z5-JAII-89 10 U 10 U 10 U 10 U .5 U 5 U 5 U 10 U 5U 150 5 U 10 U
1481 .24-AP!I-89 10 U 10 U 10 U 10 u 5 U 5 u 5U 10 U 5 u 160 J 5 U 10 U
Va" D.te Chlorofo... Chloro DlbrC80Chl Ethyl. Mlthyl- Styr- 'etrachlor TolU8f18 Tot.1 Trlchloro Vinyl Vinyl
.....r ...lad _th- or-th- 1enI- Chloride O8th- lIyl81'118 .th- Ac.tat. Chloride
...- ....-- ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
1287 28-""-90 10 10 u 5U 5U su 5U 32 5 u 5 U 530 D 10 U 10 u
1287 15-JAI-91 12 10 U 5U 5U 5U 5U 54 5 U 5U 160 D 10 U 10 U
1287 09-IIP-91 10 .I JJU 17 U 17 U 15 1.1 tru 27 17 U 17 U 560 3SU JJU
1487 51-AUG-87 ZS 5 U 109
1487 29-fEI-88 1 10 U 5U 5 U 7 5U 5U 5 U 5 U 28 10 U 10 U
1487 08-AUG-88 5U 10 U 5U 5 u 5 U 5 U 5 U 5U 5 U 54 10 U 10 U
1487 26-OCT-88 81 10 U 5U 5 U 5 U 5 U 5 U 5 U 5 U 36 10 U 10 U
1487 Z5-JAII-89 5 U 10 U 5U 5 U 5 U 5U 5U 5 U 5U 54.1 10 U 10 U
1487 Z4-AP!I-89 16 10 U 5U 5 U 6U 5 U 4 J 5 U 5 U 68 10 U 10 U
U-Anllyzad but not detected J-Pr..ent below detection 1I.lt E-E.tl..ted Value D-Dlluted S-.pl.
-------
Pa.e 110. '0
Ground Water Volatile Or.anlc Retulta
903 Pad Area
RHUI ta reported In ug/l
lieU Date t,t,t-Yrlch t,t,2,2-Yetr t,t,2-Yrlch t,t-Dlchlor t.t-Dlehtor t.2-Dlehtor t,2-Dlehtor t.2-Dlehtor ei.-1.3-Dleh trana-1.2-DI trane-1,]-Di 2-Chtoroethvt
IIlIItIar ...Ied loroath- achioreth- loroath- oath- oeth- oeth- oeth- apr0p8n8 h.iorapropene ehlorOeth- chlorapropene Vinyl Ether
...-. ....... ........... ............. .......... ........... ............ ........... ........... ........... ............ ............ ............. ......~......
1581 15-APR-91 50U 50 U 50U 50 U 50 U 50 U 31.. 50 U 50 U 50 U
1581 O]-UP-91 75U 75U 75U 75U 75U .75 U 15U 75U 75U 75U
1681 to-IIP-87 5 U 5U 5U 5U 5U
'687 29-'EI-88 5 U 5U 5U 5U 5U 5 U 5u 5U 5 U 5 U "0 U
'681 ZO-APR-88 5U 5 U 5 U 5 U 5U 5 U 5 U 5U 5 U 5U 10 U
'687 09-AUG-88 5U 5 U 5 U 5U 5 U 5 U 5 U 5U 5 U 5 U 10 U
'687 ]1-CICY -88 5 U 5U 5 U 5U 5 U 5 U 5 U 5U 5 U 5U 10 U
'681 07-'EI-89 5U 5 U 5 U 5 U 5 U 5U 5 U 5 U 5 U 5U
1687 01-""-89 5U 5 U 5U 5U 5 U 5u 5 U 5U 5 u 5 u
lieU Date 2-lut- 2-He.- 4-Methvl-2 Aeetone Benz- BrC8ldlcht Br(8)fol'll BrC81 Carbon Carbon Yet Chloro Chtoro
IIlIItIar -..led pent- or_th- _thane ' dlautflde trIChtoride benz- ethane
...... ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
1581 15-APR-91 '00 U 100 U 100 U 100 U 50 U 50 U 50 U '00 u 50 u . 1100 50 U 100 U
1587 03-S£P-91 150 U 150 U 150'U 150 U 75U 75U 75U 150 U 75U 1600 75U 150 U
1687 10-SEP-87 5 U
1687 29-'EI-88 10 U 10 U 10 U 10 U 5 U 5 U 5U 10 U 5u 5U 5 U 10 U
1687 ZO.~-88 10 U 10 U 10 U 10 U 5 U 5 U 5U 10 U 5U 5 U 5 U 10 U
1687 . 09-AUG-88 10 U 10 U 10 U 1D U 5 U 5 U 5U 10 U 5U 5U 5U 10 U
'687 ]1-CIC' -88 10 U 10 U 10 U 10 U 5U 5 U 5 U 10 U 5U 5 U 5U 10 U
1681 01-'EI-89 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5U 5U 5U 10 U
1681 ' O"'la'-89 10 U 10 U 10 U 10 U 5U 5 U 5 U 10 U 5U 5U 5U 10 U .
lieU Date Chtorofol'll Chloro Dibr-"I EthVI Methyl- Styr- 'etrachlor 'o'~ 'otal 'rlehloro Vinyl Vinyl
IIYlMr S..led _th... or_th... 18nI- Chloride oath... .V'- eth- Acetate Chloride
...... ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
1587 "-APR-91 15.1 100 U 50 U 50 U 50 U 50 U 71 50 U 50 U 49.1 100 U . 100 U
1587 03-IEP-91 19 .I 150 U 75U 15U 75U 75U 160 75U 75U 81 150 U 150 U
1687 10-IIP-87 5U 5U 5 U
1687 29-'EI-88 5 U 10 U 5U 5U 8 5 U 5 U 5U 5U 5U 10 U 10 U
1687 2O-APR-88 5 U 10 U 5 U. 5U 5U 5 U 5 U 5U 5U 5U 10 U 10 U
1687 09-MJG-88 5 U 10 U 5U .5U 5U 5 U 5U 5 U 5U 5 U 10 U 10U
1681 51-C1I:'-88 5 U 10 U 5U , U 5 U 5 U 5 U 5U 5U 5 U . 10 U 10 U
1687 07-'EI-89 Z .I 10 U 5 U 5 U 5 U 5 U 5U 5U 5U 5U 10 u 10 U
1687 01-""-89 5U 10 U 5 U 5 u 5 U 5U SU 5U su 5 U 10 U 10 U
U-Anltvzed but not detected ..-Pr..ent ba.CIM detection' 1.1t E-Eatl..ted Value DoOl luted ...Ie
-------
P'I' Mo. ,
Ground W.t.r Vol.tll. Orlenle Re.ult.
903 Ped Arel
Result. reported In l1li11
welt Olte 1,1,1-Trlch 1,1,2,2-Tetr 1,t,2-Trlch 1,t-Olchlor 1,1-0Iehlor 1,2-0Ichlor 1,2-0Iehlor 1,2-0Ichlor cl.-1,3-0Ich tr_-1,2-01 tr_-1,3-01 2-Chloroethyl
llulber S..led loroeth- echloret~ loroath- oath- oeth_' oath- oeth- opropene hloropr~ chloroeth- chloropropene Vinyl Ether
--... ....... ........... ............. .......... ........... ............ ........... ........... ........... ............ ............ ............. .............
1587 29-FEI-88 5U 5 U 5 U 5 U 5 5 U 5 U 5 U 5U 5 U 10 U
1587 20~AJII-88 5 U 5U 5 U 5 U , 5U 5 U 5 U 5U 5 U 10 U
1587 OHIAY-89 5U 5U 5 u 5 U 501 5U 5 U 5 U 5 U 5u
1587 02-AUG-89 201 5 U 5 u 5U 401 5 U 5 U 5 u 5 U 5 u 5 u .10 U
1587 24-JAN-9O 5U 5 U 5 U 5U 5 U 5 u 5 U 5 u 5U 5 u
1587 25-JUM-9O 201 5U 5 u 5 U 4 .I 5 U 160 5U 5U 5 U
1587 18-SEP-9O 7 5U 5 U 5 U 10 5 U 220 0 5 U 5 U 5 U
1587 27-1IOV-9O 6 5U 4 .I 5U 8 5 U 140 5 U 5 U 5 U
1587 Of-oIAN-'1 301 3 .I 5 U 5U 5 5 U 150 5U 5U 5U
well Olte 2-Butenone Z-He.an0n8 '-Methyl-2 Aeetone Benz- Br08Xllehl BrC8Jfol'll BrC8J C.rbon Clrbon Tet Chloro Chloro
Mlllber I..led pent- or_th- _th- dl.utflde trechlorlde benz- eth-
...... ....... ........... ............. .......... ........... ..D........ ........... ........... ............ ............ ............. ........... ..........
1587 29-fEl-88 10 U 10 U 10 U 10 U 5 U 5U 5 U 10 U 5 U 1591 5 U 10 U
1587 20-AP.-88 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5U 4305' 5 U 10 U
1587 OHIAY-89 10 U 10 U 10 u 10 U 5U 5 U 5 U 10 U 5 U 1100 .I 5 U 10 U
1587 02-AUG-89 10 U. 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U 1200 5 U 10 U
1587 24-JAN-9O 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U 1400 5 U 10 U
1587 25-01111-90 10 U 10 U 10 U 10 U 5 u 5 U 5 U 10 U 5 U 2000 5 U 10 U
1587 18-SEP-9O 4 101 10 U 10 U 2 101 5 U 5 U 5 U 10 U 5 U 6400 DE 5 U 10 U
1587 27-11OV-9O 10 U 10 u 10 U 10 u 5 U 5 U 5U 10 U 5 U 3700 0 5 U 10 U
1587 ,Of-oIAII-91 10 U 10 U 10 U 6 101 5U 5 U 5 U 10 U 5U 2500 0 5U 10 U .
welt Olte Chlorofol'll Chloro Dlbr080ChI Ethyl Methylene Styrene Tetrechlor Tol&818 Tot.l Trlchloro Vinyl Vinyl
llIIber IIIIpled -thlnl or_th- lenaene Chloride oethene Kyl- ethene Acetlte Chloride
...- .--... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
1587 29-fEI-88 35 10 U 5U 5 U 8 5 U 212 5U 5 U 96 10 U 10 U
1587 ZO-AJII-88 42 10 U 5U 5 U 5 U 5 U 78Z 5 U 5U 269 10 U 10 U
1587 OI-MY-89 21 10 U 5" 5 U 5 U 5 U 190 5 U 5U 120 10 U 10 U
1587 OZ-AUG-89 36 '10 U 5U 5 U 5U 5 U 200 5 U 5U 110 10 U 10 U
1587 24-JAN-9O ]5 10 U 5U 5 U 5 U 5 U 140 5 U 5 U 74 10 U 10 U
1587 25 - 01111- 90 31 10 U 5U 5 U 4 .I 5 U 300 5U 5 U 140 10 U 10 U
1587 18-SEP-9O 59 10 U 5 U 5U 61 5U 410 IE 5 U 5U 230 0 10 U 10 U
1517 27-1IOV-9O 38 10 U 5U 5 U 5U 5 U 180 Dol 5U 5U 150 10 U 10 U
1587 Of-oIAII-91 56 10 U 5U 5 U 3 .I 5 U UOo 5U 5 U 160 10 U 10 U
UaAn8lyzed but not detected Japr..ent below detection lialt EaE.tl..ted Vilue DaOl auted I..ae.
-------
Veu Oata
lI""r lallpted
....-
.._a..
2617
20-"-87
\leU Oate
lI""r lallpt ed
.._a. .......
2617 20-1IOV-87
lieU Oate
lIumer SlIIpled
...... .......
2617 20-1IOV-87
GrCKni "ater Votat Ite Or811111c ...ut.t8
903 Ped Area
.Hutts reported In ug/I
'.'.'-Trlch
loroeth-
1.1.2.2-Tetr 1.1.Z-Trlch 1.1-0Ichlor 1.1-0Ichlor
achloreth- toroeth- oath..... oethene
1.2-0Ichlor 1.Z-0Ichlor
oath..... oethene
...........
........... ............ ........... ...........
............. ..........
5 u
5 u
5U
5 U
5 U
5 U
5U
Z-Butanone Z-Hexanone
BrCl8Xtlchl
or_th-
IrC80fol'll,
4-Methyl-Z Acetone
pantanone
Benz-
P88e 110.
12
1.Z-0Ichtor cls-1.3-0Ich tr_-1.2-01 tr_-1.3-01 Z-Chtoroethyl
opropena htoropropena chloroath- chtoropropena Vlnyt Ether
........... ............ ............ ............. .............
5 U 5 U 5U
BrC80
_th.....
Carbon
dlaulflde
Chtoro
eth-
Carbon Tet
trachtorlde
Chloro
benzene
........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
'0 U 10 U 10 U '0 U 5 U 5 U 5U '0 U 5 U 5 U 5 U '0 U
Chtorofol'll Chloro OlbrC8OchI Ethyl Methyt- Styrene Tetrachtor Totuene Totsl Trlchtoro Vlnyt Vinyl
_th8w or_th- lenzene Chloride oeth- .yt- ethene Acetate Chloride
........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
5 U 10 U 5U 5 U 5 U 5 U 5U 5U 5 U 5 U '0 U '0 U
""r.....t betow detection iI.1t
VaVa'ld end ecceptab'e
EaEstl_ted Vetue
."eJected
~Ana' yzed but not detected
A-Acceptabte with ~tlflcatlonl
,
-------
Pa.. "0. "
Ground Wat.r Voiatli. Orlenlc Reeuit.
903 Ped Ar.a
RHUlt. reported In ue/i
WeB Dat. 1.1.1-Trlch 1.1.Z.Z-T.tr 1.1.Z-Trleh 1.1-0Ichior 1.1-0Ichior 1.Z-0Ichior 1.Z-0Ichior 1.Z.0IcMor cls-1.3-0Ich U_-1.Z.01 tr_-1.3.01 Z-Chtoroethyi
"l8I8r ...ted ioroeth- 8ehior.th- loroeth- oeth- oethene oeth- oethene oprClp8ne htoropropene chtoroethene chtoropropene Vlnyt Ether
...-. ....... ........-. ............. .......... ........... ....~.....~. ........... ........... ........... ............ ............ ............. .............
1681 O2-U-89 5 U 5U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 10 U
1681 06-IIOV.89 5U 5U 5 U 5 U 5 U 5 U 5 U 5 U ,5 U 5 U
1681 11-110-90 su SU SU 5 U 5 U 5 U 5 U su 5 U 5 U
1681 26-JU8l-9O 5 u su 5U 5'U 5 u 5 u 5 u 5u 5 u 5 u
1681 1a-IEP-9O 5 U 5U 5U 5 U 5 U 5 U 5 u 5U 5 u 5 u
1681 Z8-1IOV-9O 5 U 5U 5U 5 U 5 U 5 u 5 U 5U 5U 5 U
1687 09-JAJI.91 5 U 5U 5U 5 U 5 u 5U 5 u 5U 5 u 5 U
1687 16-APR-91 5U 5U 5 U 5 U 5 U 5 U 5 u 5u 5 u 5 U
1687 O5-IEP-91 5U 5U 5 U 5 U 5 U 5U 5 U 5U 5 U 5 U
WeB Oat. Z-8utenone Z-H..enone 4-Methyl-Z Ac.tone lenzene IrGllOdlcht IrClllOfol1l IrC80 C.rbon C.rbon TIt Chtoro Chtoro
"""r S..Ied pent- or_th- _th- disulfide trachtorlde benzene .th-
...... ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
1687 OZ-AUQ-89 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U 5 U 5 U 10 U
1681 06-IIOV-89 '0 U 10 U '0 U '0 U 5 U 5 U 5 U 10 U 5 U 5 U SU 10 U
1687 11-1W1-9O 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U SU 5 U 5 U 10 U
1687 26-01.-90 10 U 10 U 10 U ,10 U 5 U 5 U 5 U 10 U su 5 U 5 U 10 U
1687 18-IE'-9O 10 U 10 U 10 U 4 101 5 U 5U 5 U 10 U 5U 5 U 5 U 10 U
1687 Z8-1IOV-9O 10 U '0 U ~O U 10 U 5 U 5 U 5 U 10 U 5 U 5U 5U 10 U
1687 09-JAJI-91 10 U 10 U '0 U 5 101 5 U 5 U 5 U '10 U 5 U su 5 U 10 U
1687 16-APR-91 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U ' 5U 5 U 5U 10 u
1687 . O5-IE'-91 10 U 10 U 10 U 10 U 5 U 5U su 10 U 5U 5U 5 U 10 U
WeB Data Chlorof0f'8 Chiaro Dlbr080ChI Ethyl Mathytene Styrana T.trachtor Totuene Total Trlchtoro Vlnyt Vinyl
llueer -..led -t~ or_th- lenzana Chloride oeth- Xyl... .th- Ac.tat. Chtorlde
...... .--.. ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
1687 O2-AlJG-89 5U 10 U 5 U 5 U 5U 5 U ,.. 5U 5U 5 U 10 U 10 U
1687 06-1IOV-89 5U lOU 5 U SU 5 I 5U 5U 5U 5U 5 U 10 U 10 U
1687 17-110-90 5U 10 U 5U 5U 3 "I 5 U 5 U 5 U 5U 5 U lOU 10 U
1687 Z6-M-9O 5U lOU 5 u 5U SU 5U SU 5U 5 U 5U 10 U 10 U
1687 18-UP-9O SU '0 U SU 5., 5 I 5U 5 U 5 U 5U 5 U '0 U 10 U
1687 28-1IOV-9O SU 10 U 5 u 5U 5 U 5 u 5 u 5 U SU 5 U 10 U 10 U
1687 09-JAJI-91 SU 10 U 5 U 5U 2 .I 5 U 5 U 5U 5 U 5 u 10 U 10 U
1687 16-APi-" SU 10 U 5 U 5 U 5 U 5 U 5 U 5 u 5U , U 10 U 10 U
1687 OS-IEP-91 5 U 10 U 5 U 5 U 1 .I 5 U 5 U 5 U 5 U 5 U 10 U 10 U
U-Analyzed but not detected J.pr..ent beiCMI detection ".It E-E8tl..tad V.lue D~)lluted S!l8Pl.
-------
Palle No. Z
Ground Water Volatile orllenlc ...ult.
Mound Area
Results reported In UII/l
WeH Oat. 1,1,1.Trlch 1,1,2,Z-,.tr 1,1,2-'rlch 1,1-0Ich'or 1,1-0Icll'or 1,Z-llch'or 1,Z-0Icll'or 1,Z-OlcMor cl.-1,3-0fc;1I tr_-1,2-01 tr_-1,3-01 2-CMoroetllyl
Numer IIIIIpI ed 'or08t"... .chior.th... 'or08th... O8tll- oethene oeth... O8tllene opropene h 'oropropene ch'oroethene ch'oroprapene Vinyl Etller
..-.. ....... .........- ............. .......... ........... ............ ........... ........... ........... ............ ............ ............. .............
0174 OZ-fEI-89 5 u 5 u 5U 5 U 5 U 5U 5 U 5 U 5U 5 U
0174 M-M'-89 5U 5 U 5U 5U 5 U 5 U 5 U 5 U 5 U 5 U
0174 10-AUG-89 5 u 5U 5U 5 U .5 U 5 U 5 u 5 u 5 u 5 u 5 U 10 U
0174 17-IIOV-89 1ZOO u 1200 U 1200 U 1200 U 1200 U 1200 U 1200 U 1200 U 1200 U 1200 U
0174 Of-'EI-90 Z500 U 2500 U 2500 U 2500 U 2500 U 2500 U 2500 U 2500 U 2500 U 2500 U 5000 U
0174 OS-M'-90 5U 5 U 5U 5 U 5 U 5 U 28 5 U 5 U 5U
0174 15 -1IOV-90 1200 U 1Zoo U 1200 U 1Zoo U 1200 U 1200 U 1200 U 1Zoo U 1200 U 1200 U
0174 10-M'-91 500 U 500 U 500 U 500 U 500 U 500 U 500 U 500 U 500 U 500 U .
0174 15-AUG-91 2500 U 2500 U 2500 U 2500 U Z500 U 2500 U 2500 U 2500 U 2500 U 2500 U
weH Oat. z-aut.... Z-He...... 4-"'thy'-Z Acetone lenzent Ir~lcM Ir_fons Ir- C.rbon Carbon Tet CIIt oro CIIt oro
Numer S8IIIp1 ed pent..... orC81th- _thene dlaul f Ide trachlorlde benzene eth-
...... ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
0114 OZ-'E8-89 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U 5 u 5U 10 U
0174 Q4.M'.89 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U 5 U 5U 10 U
0174 10-AUG-89 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U 5 U 5 U 10 U
0174 17-1IOV-89 2500 U 2500 U 2500 U 2500 U 1200 U 1200 U 1200 U 2500 U 1200 U 1Zoo U 1Zoo U Z500 U
0174 Of- 'EI-90 5000 U 5000 U . 5000 U . 5000 U 2500 U 2500 U 2500 U 5000 U 2500 U 2500 U 2500 U 5000 U
0174 OS-M'-90 10 U 10 U 10 U 10 U 5 U 5 U 5U 10 U 5 U 5 U 5 U 10 U
0174 15-NOV-90 2500 U 2500 U 2500 U 2500 U 1200 U 1200 U 1200 U 2500 U 1200 U 1200 U 1Zoo U Z500 U
10-M'-91 1000 U 1000 U 1000 U 1000 U 500 U 500 U 500 U 1000 U ' 500 U 500 U 500 U 1000 U
0174
0174 . ".AUG-91 5000 U 5000 U 5000 U 8200 I 2500 U 2500 U 2500 U 5000 U 2500 U 2500 U 2500 U 5000 Ii
weH Oat. Ch'orofortl CIIt oro Dlbr-'" Ethy' Methy'ene Styrene T.trach'or To'uene Tota' 'rlchioro Vlny' Vlny'
NIIIIber 11IIIp' ed _th... or_th... Ienlene Ch'orlde O8th- Xl"'" .thene Ac.tat. Chloride
..-- ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
0174 OZ.fEI.89 SU 10 U 5U SU 5 U 5U "000 5 U 5 U 1800 10 U 10 U
0t74 Q4-M'-89 5U 10 U 5U 5 U 5 U 5U 45000 5 U 5U 1800 10 U 10 U
0174 10.AUG-89 Z J 10 U 5U 5 U 5 U 5U 44000 0.9 J 5 U 840 10 U 10 U
0114 17-NOV-89 1200 U . 2500 U 1200 U 1200 U 1300 B 1200 U 47000 1200 U 1200 U Z400 2500 U Z500 U
0114 Of-FEI-90 2500 U 5000 U 2500 U 2500 U Z500 U 2500 U 20000 2500 U 2500 U 1000 J 5000 U 5000 U
0174 OS-M'-90 SU 10 U 5U 5U 19 5 U 39000 5 U 5 U 2800 10 U 10 U
0174 15-NOV-90 1200 U 2500 U 1200 U 1200 U 4100 B 1200 U 37000 I 1200 U 1200 U 2100 2500 U 2500 U
0174 10-M'.91 500 U 1000 U 500 U 500 U 500 U 500 U 5ooi1o D 500 U 500 U 2500 1000 U 1000 U
0174 15-AUG.91 Z500 U 5000 U 2500 U 2500 U 900 IJ Z500 U 84000 2500 U 2500 U 7800 5000 U 5000 U
U-Anltyzed but not detected "-Pr..",t bet ow detection ".It EaE.ti_ted Value DoOf luted SlIIIple
-------
Page 110-
Ground Weter Voletlle Orlenlc R..ult.
Mound Aree
..aulta reported In ue/l
We" Dete '.'.'-Trlch 1.1.2,2-Tetr 1,1,2-Trlch 1,1-Dlchlor 1,1-Dlchlor 1,2-Dlchlor 1,2-Dlchlor 1,2-Dlchtor cl.-1,)-Dlch trIM-1,2-DI trIM-1,)-DI 2-Chtoroethyt
Nulber S8IIpt ed loroethlne echlorethlne loroethlne oethlne oethene oeth- oethene opropene htoropropene chtoroethene chloroprapene Vlnyt Ether
...- --.... ........... ............. .......... ........... ............ ........... ........... ........... ............ ............ ............. .............
0114 _-AUG-86 5U 5 U 5U 5 U 5 U 5 U 5 U 5 U 38 5U 10 U
0114 -1IIJV-86 50 U 50 U 50 U 50 U 50 U 50 U 50 U 50 U 37.1 50 U 100 U
0174 IHN-87 16 4U 18 4U 15
0174 22-.'-87 4 U 4U 4 U 20 4 U
0174 23-JUl.-87 4 U 4U 90 4U 4 U
0174 OHN-88 5 U 5 U 5U 5U 5 U 5 U 5 U 5 U 5 U 5 U 10 U
0174 09-.'-88 5 U 5 U 5U 5 U 5u 5 u 5 u 5 u 5 U 5 u 10 U
0174 I1-AUG-88 5U 5 U 5U 5U 5 U 5 U 5 u 5 u 5 U 5 U 10 U
0174 O)-JAI-89 5U 5U 5U 5 U 5U 5 u 5 U 5U 5U 5U 10 u
We" Dete 2-8ut- 2-He.- 4-Methyt-2 Acetone 8enzene 8r08OdIchi 8r-fonl 8r- Cerbon Cerbon Tet Chtoro Chloro
IllIIIber IIIIipIed pent- or_th- _th- dlaut fide trechtorlde benz- eth-
...... ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
0174 - -AUG-86 10 U 10 U 10 U ] 8.1 5 U 5U 5U 10 U ) .I 5 U 5 U 10 U
0174 -IIIJV - 86 100 U 100 U 100 U 100 U 50 U 50 U 50 U 100 U 50 U 50 U 50 U 100 U
0174 1HN-87 4 U
0114 22-.'-87 4U
0174 n-JUL-87 4U
0174 OHN-88 10 U 10 U 10 U 10 U 5 U 5U 5 U 10 U 5U 5U 5 U 10 U
0174 09-.'-88 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U 5 U 5 U 10 U
0114 11-AUG-88 10 U 10 U 10 U 10 U 5 U 5 U 5U 10 U ' 5 U 5U 5U 10 U
0174 O)-JAI-89 10 U 10 U 10 U 10 U 5U 5U 5U 10 U 4.1 5 U 5U 10 U .
We" Oete Chtorofonl Chtoro OlbrC8OCht Ethyt Methyt- Ityr- Tetrechtor Totu... Totet Trlchtoro Vinyl Vlnyt
.lIIMr IlIIipted _th- or_th- lenz- Chloride oeth- Xytenee eth- Acetet. Chtorlde
...... -..... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
0174 _-AUG-86 4 " 10 U 5U 5 U 2 .I 5 U 120000 2 " 5 U 7000 10 U 10 U
0174 - -1IIJV-86 50 U 100 U 50 U 50 U 50.1 50 U 24000 50 U 50 U 2400 100 U 100 U
0174 n-MA-87 5 80000 8000
0174 22-.'-87 38 528000 18000
0174 23-JUl.-87 4U 115 114
0174 o)-MA-88 5 U 10 U 5U 5U 5 U 5 U 33600 5U 5 U 4405 10 U 10 U
0174 09-.'-88 5 U 10 U .5 U 5U 5 U 5U )2850 5U 5 U 1800 10 U 10 U
0174 1'-AUG-88. 5 U 10 U 5U 5 U 5 U 5 U 4MOO U 5 U 5 U 1995 10 U 10 U
0174 O)-JAII-89 6 I 10 U 5U 5U 4 .II ' 31000 5 "I 5 U 2200 10 U 10 U
U-Anelyzed but not detected J.pr..ent bel- detection 1I.lt E-E.tl..ted Value D80Huted SlIIiple
-------
Page 110- 4
Ground Water Volatlla Orgenle .esulta
Mound Are.
Ae.ult. reported In ug/t
:,." Date 1,1,1-Trlch 1,1,2,2-Tetr 1,1,2-Trleh 1,1-0lchlor 1,1-0tchtor 1,2-0lchtor 1,2-0tchtor 1,2-0tcMor ct.-1,S-Otch tr_-1,2-0t tr_-1.,J-Ot 2-Chtoroethyt
IIlIItIer IMpI ed toroethene acMorethene toroethene oethane oeth- oeth- oeth- opropane Monipropene cMoroeth- chloropropene Vlnyt Ether
...... ....... ........... ............. .......... ........... ......~..... ........... ........... ........... ............ ............ ............. .............
1787 06-1IOV-9O 5U 5 U 5 U 5 u 5 U 5 U 4 J 5 u 5 u 5 U
1787 O9-Ml-91 '" 5 U 5U 5 U 5 U 5 u 4" 5U 5 U 5 U
1787 l5-MAY-91 5U 5 U. 5U 5U 5 u 5 U 5 U 5 U 5 U 5U
1787 19-AUG-91 5U 5U 5U 5U 5 u 5 u 5 5 u 5 u 5U
1887 07-Ml-88 5 U 5U 5U 5U 5 u 5U 5 U 5U 5 U 5U 10 U
1887 OS-MAY-88 5 U 5 U 5U 5U 5 U 5 U 5 U 5 U 5U 5U 10 U
1887 15-AUG-88 5U 5U 5 U 5U 5 U 5 U 5 U 5 U 5 U 5U 10 U
1887 03-"AII-89 5U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5U 5 U 10 U
1887 07-fll-89 5 U 5 U 5U 5U 5 U 5 U 5 U 5 U 5 U 5U
WItt Date 2-Butanone 2-Hexanone 4-MethVt-2 Acetone lenz- Ir08ldtcht Ir_fol'll Ir- Carbon Carbon 'et Chtoro Chloro
IIlIItIer SIIIIpI ed pentenone or-th- _thene dtautftde tracMorlde benz- eth-
...... ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
1787 06-1ICW-9Q 10 U 10 U 10 U 10 U 5 U 5U 5 U 10 U 5 U 25 5 U 10 U
1187 09-JWt-91 10 U 10 U 10 U 2 BJ 5 U 5 U 5 U 10 U 5 U 24 5U 10 U
1787 15-MAY-91 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U 28 5 U 10 U
1781 19-AUG-91 10 U 10 U 10 U 10 U 5 U 5U 5 U 10 U 5 U 27 5 U 10 U
1887 07-lWI-88 10 U 10 U 10 U 10 U 5 U 5U 5 U 10 U 5 U 5 U 5 U 10 U
1887 OS-MAY-88 10 U 10 U 10U 10 u 5 U 5 U 5 U 10 U 5 U 5 U 5 U 10 U
1887 "-AUG-88 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U 5 U 5 U 10 U
1887 05-"U-89 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U '- 5 U 5 u 5U 10 U
1887 , 07-fEI-89 10 U 10 U 10 U 10 U 5 U 5 U 5U 10 U 5 U 5 U 5U 10 U .
WI" Olte Chtorofo/'1l Chtoro Otbr08OCht EthVt Methyt- Styr- Tetrachtor Totuene Total TrtcMoro Vtnyl Vlny~
IIlIItIer Sllllpt ed _thene or_thene 1."11118 Chtortde OIth- XVi... eth- acetate Chloride
...... ....... ........... ............. .......... ........... ........... ........... ........... ......~..... ............ ............. ........... ..........
1787 06-1ICJV-9Q 5U 10 U 5U 5U 5 U 5 U 29 5U 5 U 6 10 U 10 U
1787 09-Ml-91 5U 10 U 5U 5U 5 I 5 U 26 2 I" 5 U. 6 10 U 10 U
1787 lJ-MAY-91 5U 10 U 5U 5U 5 U 5 U 25 5U 5 U 7 10 U 10 U
1787 .19-AUG-91 5U 10 U 5U 5U 5 " 5 U 54 5 U 5 U 6 10 U 10 U
1887 07-Ml-88 29 10 U 5U 5U 5 U 5U 16 5U 5 U 5 U 10 U 10 U
1887 OS-MAY-88 12 10 U 5U 5U 5 U 5 U 52 5 U 5 U 5 U 10 u 10 U
1887 15-AUG-88 5 U 10 U 5U 5U 5 U 5 U 5 U 5U 5U 5 U 10 U 10 U
1887 05-"AII~89 4 "I 10 U 5U 5U 5 I 5 U 5U 5 1 5 u 5 U 10 u 10 U
1887 07-fEI-89 2 " 10 U 5U 5U 5 U 5 U 5U 5 U 5 U 5 U 10 U 1~ U
U.An8lyzed but not detected J.present below detactlon 1t.1t E-Eetl..ted Vatue D.ol.tuted SlIIpla
-------
Page 110- ]
Ground Water Votetlte Organic Resutts
Mound Area
Reaulta reported In UII/I
lieU Oat. 1,1. 1-'rlch 1.1,2.2-'.tr 1,1.Z-Trlch 1.1-0Ichlor 1.1-0Ichlor 1,Z-Dlchlor 1.Z-0Ichlor 1,Z-0Ichtor cl.-1,]-0Ich tr_-1,Z-01 tr_-1.3-DI Z-Chtoroathyl
IlUlltlar ...ted loroath- schtor.th- loroath- oath- oethene oethana oethene opropln8 htoropropena chloroathene chloropropena Vlnyt Ether
...- .-.... ......._a. ............. .......... ........... ............ ........... ........... ........... ............ ............ ............. .............
1787 03-110-88. 5 U 5 U SU 5 U 5U 5 U 5 U 5 U 5U 5 U 10 U
1787 09-MAY-88 5U SU 5U 5 U 5 U 5 U 5U 5U 5 U 5 U '0 U
1787 "-AUG-88 5U 5 U 5U 5 U 5 U 5U 5 U 5 U 5U 5 U 10 U
1787 03-01.-89 5U 5 U 5 U 5U 5 U 5 U 5 U 5U 5U 5 U .10 U
1787 07-fEI-89 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U
1787 03-MAY-89 5 U 5 U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5 U
1787 OHIOV-89 5 U 5 U 5 U 5U 5 U 5 U 14 5 U 5 U 5 U
1781 Z9-"g-9O 5 U 5 U 5 U 5 U 5U 5 U 5 U 5 U 5 U 5 U
1787 06- _-90 5 U 5U 5 U 5 U 5u 5 u 5 5 U 5U 5U
WeU Date 2-8ut- Z-lIellanonl 4-Methyl-2 Acetone Benzene BrGMdlchl 8r-fo/"ll Br- carbon Carbon Tet Chtoro Chtoro
IIl.IIIb8r ...ted pent- orC81th- _th- dl.ulflde trschtorlde benzene eth-
...... ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
1787 OHU-88 10U 10 U 10 U 10 u 5 u 5 U 5 u '0 U 5 U 32 5 U 10 U
1781 09-MAY-88 10 U 10 U 10 U 10 U 5U 5 U 5U 10 U 5 U 10 5 U 10 U
1787 "-AUG-88 '0 U '0 U 10 U 10 U 5 U 5 U 5 U 10 U 5U 45 5 U 10 U
1781 0]-01.-89 10 U 10 U 10 U '0 U 5 U 5 U 5 U 10 U 5 U 17 5 U 10 U
1787 ONU-89 10 U 10 U 10 U 10 U 5u 5 U 5 U 10 U 5 U 71 5 U '0 U
1787 OJ-MAY-89 10 U 10 U '0 U 10 U 5 U 5 U 5U 10 U 5U 47" 5U '0 U
1787 01 -1IOV-89 10 U 10 U 10 U 28 5U 5U 5 U '0 U 5 U 54 5 U 10 U
1781 . Z9-"g-9O 10 U 10 U 10 U 10 U 5 U 5 U 5U 10 U ' 5U 50 5 U 10 U
1787 . 06- 01.-90 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5U ]7 5 U 10 U .
Well Date Chlorofo/"ll Chloro Dlbr_hl Ethyl Methylene Styrene 'etrlChlor Toluene Total Trlchloro Vinyl Vinyl
IIUlltlar -..led _th- orC81th- lenzene Chloride oathene Xyl.... ethane Acetate Chloride
..-. --.- ........... ............. .......... ........... ........... ........... ........... ............ ...........~ ............. ........... ..........
1717 03-lWl-88 17 10 U SU 5U 5U 5U ," 5U 5U 14 10 U 10 U
1787 09-MAY-88 5 U 10 U 5U 5 U SU 5 U 235 5U 5 U 27 10 iJ 10 U
1787 15-AUG-88 5 U 10 U 5U 5U 5 U 5 U 99 5 U 5 U 12 10 U 10 U
1787 03-01.-89 1S 1 10 U 5U 5U 61 5 U 190 51 5U 26 10 U 10 U
1781 01-fEI-89 5 U 10 U 5U 5 U 5 U 5 U 140 5U 5U 21 10 U '0 U
1781 O]-MAY-89 4 " 10 U 5U . 5 U 5 U 5U 160 5 U 5 U 17 10 U 10 U
1787 01-1IOV-89 5 10 U 5 U 5U 16 5 U 5 U 4 .I 5U 5U. 10 U 10 U
1787 Z9-Jg-9O 2 .I 10 U 5 U 5 U 5 U 5 U 51 su 5 U 13 10 U '0 U
1787 06- 8-90 5 U '0 U 5 U 5U Z .I 5 U 46 5 U 5u 8 10 U 10 U
lJ8AnIlyzed but not detected ".present below detection 1I.lt E-Estl..ted Value D-Dlluted S8mple
-------
P8l1e 110. 6
Ground Weter Volatile Orllenlc .esults
Mound Aree
.esults reported In UII,I
Well Date 1.1.1-Trlch 1.1,Z.Z-Tetr 1,1,Z-Trlch 1,1-Dlchlor 1,1-0lchlor 1,Z-0lchlor 1,Z-Dlchlor 1,Z-0lchlor cls-1,3-0Ich tr_-1,Z-01 tr_-1,3-01 2-Chloroethyl
I1l8ber ...led loroethene 'achlorethane loroethane oethene oethena oethane oethena opropane hloropropene chloroethene chloropropene Vinyl Ether
..-- ....-. ........... ............. .......... ........... ............ ........... ........... ........... ............ ............ ............. .............
1887 2O-AUQ-91 5U 5 U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5 U
1987 ZZ-MY-90 5U 5 U 5U 5 U 5 U 5 U 5 U 5 u 5 u 5U
1987 25-JUL-90 15.1 25 U 25U Z5 U Z5 U Z5 U Z5 U Z5 u Z5 u ZSU
1987 15-AUG.91 SU SU SU 5U 5 U S U 5 U 5 U SU S U
Z087 03-lWl-88 SU SU Su 5U 5U 5 U 5 U 5U 5 U SU 10 U
2087 Of-MY-. 5U 5 U SU 5U 5 u 5U 5 u 5 U 5 U 5 U 10 U
2087 11---. SU 5U 5U 5U 5 U 5U 5 U 5U 5U 5U 10 U
2087 01-I0Il-88 SU 5 U 5U 5U 5 U 5U S U 5U 5 U 5U 10 U
ZOI7 07-'EI.19 su 5 u 5U 5U 5U 5 U 5 U 5 U 5 U 5U
Well Date Z.lutenone Z-"ellenone 4-M8thyl-Z Acetone lenzene Ir~lchl Ir_fone 8r- Cerbon Carbon Tet Chloro Chloro
IIl8ber 18llPied pent..... orC81thane _thllll disulfide trachlorlde benzene ethane
....- ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... .........-
1887 ZO-AUG-91 10 U 10 U 10 U 10 U 5 U 5U 5 U 10 U 5 U 5 U 5U 10 U
1987 2Z-MY-90 10 u 10 U 10 U 10 U 5 U 5 U 5u 10 U 5u 5 U 5 U 10 U
1987 25-JUL-90 50 U 50 U '50 U 50 U Z5 U ZSU Z5 U 50 U Z5 u Z5 U Z5 U 50 U
1987 '5-AUG-91 '0 U '0 U '0 U 161 5 U 5 U 5 U 10 U 5 U 5U 5U 10 U
2087 03-MII-. 10 U 10 U 10 U 15 SU 5 u 5 U 10 U 5 U 5U 5U '0 U
ZOI7 Of-MY-. 10 U 10 U 10 U 10 U 5U 5U SU 10 u 5U 5U Su 10 U
2017 11-AUG-. 10 U 10 U 10 U '0 U 5 U 5 U 5 U 10 U 5U 5 U 5U 10 U
"
Z087 01-I0Il-. '0 U '0 U '0 U 10 U 5U 5 U 5 U 10 U 5 U 5U 5U 10 U
ZOI7 . 07-'EI-19 10 U 10 U 10 U 10 U 5U 5 U 5U '0 I' 5 U 5U 5U 10 U '
Well Date ChlorofOf'll Chloro Dlbr~hl Ethyl ",'thyl- ttyr.. Tetrac:hlor Toluene Total Trlchloro Vinyl Vinyl
.....,. llllipi ed _t"" orC81th.., leNane .rlde oeth.. .ylenee ethene "cetete Chloride
--- -- ........... ............. .......... ........... .M..."'... ........... ........... ............ ............ ............. ......................
,.7 20-_-91 SU 10 U 5U 5U 1 I" 5 U 5 U 5 U 5U 5 U 10 U 10 U
1987 22-.Y-90 5U 10 U 5U 5U '4 5 U 790 5 U 5 U 70 10 U 10 U
'987 25-.11.-90 Z5U 50 U 25U ZSU 40. ZSU 860 ZSU ZSU 58 50 U 50 U
1987 15-AUG-91 5U 10 U 5U SU 5U 5U AD D 5U 5U 110 10 U 10 U
2087 OJ-MII-. 5U '0 U 5U 5U 'i U SU 70 SU 5U 5 U 10 U 10 U
ZOI7 Of-MY-. 5U '0 U S U SU 5 U 5 U 5 U 5U 5U 5 U 10 U 10 U
Z087 tt -AUG.88 5U 10 U 5U 5 U 5U 5 U 5 U 5U 5 U 5U 10 U 10 U
Z087 01-I0Il-.' 5U 10 U SU 5U 5 U 5 U Sol 5U 5 U 5 U 10 U 10 U
ZOI7 07-fEI-M 5U 10 U 5 U 5U I 5 U J .. 5 .! 5 U 5U 10 U 10 U
u-Analyzed but not detected ""resent ..tow detection 1I.lt £aE8tl..ted Valu. O-Diluted Semple
-------
Pegl 110. 5
Ground Wltlr votlttte Oriente RI.ut~.
tIoInt Arle
...uh. reported In U8/t
...tt Date 1.1.1-trlch 1.1.2.Z-Tltr 1.1.Z-Trlch 1.1-0Iehtor 1.1-0Ichtor 1.Z-0Ichtor 1.2-0Ichtor 1.Z-0Ichtor cl..1.3-0Ich tra,.-1.2-01 tr...-1.3-01 Z-Chtoroethyt
IIUlbar -...,ted toroeth- ac:htoret~ toroeth- oeth- oeth- oeth- oeth- opropane htoropropena chtoroeth- chtoropropene Vlnyt Ether
...- ....... -......... ............. .......... ........... ............ ........... ........... ........... ............ ............ ............. .............
1887 03-.Y-89 5U 5U 5 U 5 U 5 u 5U 5U 5 u 5 u 5 U
1887 Of-AUG-89 SU SU 5 U 5 U 5 u 5U 5 U 5 u 5 U 5 U 5 U 10 u
1887 02-_-89 SU . 5 U 5U 5 U 5 U 5U 5U 5 U 5 U 5 U
1887 08-MR-90 5 U 5U 5U 5 U 5 U 5U 5 U 5 U 5 U 5 U
1887 05-"".,90 5U 5U 5U 5U 5 U 5U 5 U 5 U 5 U 5U
1887 Z9-AUG-9O SU 5U 5 U 5 U 5 U 5 U 5U 5 U 5 U 5U
1887 23-OCT"9O 5U 5U 5 U 5 U 5 U 5U 5U 5 U 5U 5 U
1887 19-MR-91 5U 5U 5U 5 U 5 U 5U 5 U 5 U 5 U 5 U
1887 10-.Y-91 sti 5U 5U 5 U 5 U 5U 5U 5 U 5 U 5U
WItt Date 2-lut-- 2-Hu-- 4-Mathyt-2 ACltone lanz- Ir~lcht Ir-fortl Br- Carbon C.rbon Tet Chtoro Chtoro
Millibar -..tld pent-- or-th- _th- dllUtflde trachtorlde benz- eth-
.....- ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
1887 OHMY-89 10 U '0 U 10 U 10 U 5 U 5U 5 U 10 U 5 U 5 U 5 U '0 U
1887 Of-AUG-89 10 U 10 U 10 U 10 U 5 U 5U 5 U 10 U 5U S U 5 U 10 U
1887 02-_-89 10 U 10 U 10 U 9.. 5 U 5U 5 U 10 U 5 U 5U 5 U 10 U
1887 08-MR-9O 10 U 10 U 10 U 10 U 5U 5U 5U 10 U 5U 5 U 5U '0 U
1887 05-""-90 10 U 10 U 10 U tOu 5U 5U 5U 10 U 5 U 5U 5 U 10 U
1887 Z9-AUG-9O 10 U 10 U 10 U 10 U 5U 5U 5 U 10 U 5 U 5U su 10 U
1887 23-OCT-9O 10 U 10 U 10 U 61.1 5 U 5U 5 U 10 U 5 U 5 U 5U 10 U
1887 19-MR-91 10 U 10 U 10 U 10 U 5U 5U 5U 10 U ' 5U 5 U 5 U '0 U
1887 10-.Y-91 10 U 10 U 10 U 10 U 5 U SU 5 U 10 U 5U 5 U 5 U 10 U '
WItt Date ChtorofOl'8 Chtoro Olbr~t £thvt Mathvt- _tyrene Tetrac:htor Totuana Totat Trlchtoro Vlnyt Vlnyt
IlIIIIbar IIIIpt ed _thane orC88th- Ienz- Chtorlde oeth- Xyt... eth- ACltate Chtorlde
.-... .-.. ....- -.--.. --- -......- .........- ..--- ........... ............ ............ ............. ........... ..........
1887 OJ-.Y-89 SU 10 U SU 5U 5 U 5U 57 5U 5 U 5 U 10 U '0 U
1887 Of-AUG-89 SU 10 U sU 5U 5U 5U SU 5U 5U 5 U 10 U 10 U
1887 02-_-89 SU 10 U 5U 5U 71 5U 5U 5U 5U 5 U 10 U 10 U
1887 0I-MR-9O 5 U 10 U 5U 5U 5 1 5U 5U 5U 5U 4 .. 10 U 10 U
1887 05- ""-90 5 U 10 U 5U 5 U 5 U 5U 5U 5U 5 U Z8 10 U 10 U
1887 Z9-AUG-90 5U 10 U 5U 5 U 5 U 5U 5 U 5U 5 U 5 U 10 U '0 U
1887 23-OCT-9O 5U 10 U 5 U' SU 51 5U 5U 5 U 5 'u 5 U 10 U 10 U
1887 19-MR-91 5U 10 U 5U 5U 5 U 5 U 5U 5U 5 U 5 U 10 U 10 U
1887 10-.Y-91 5 U 10 U 5U 5 U 5 U 5 U 5U 5U 5 U 5 U 10 U '0 U
U-AnatYIId but not detected ".Pr..ent betOll detection tI.lt E-E.tl..ted Vetue O~I tuted ....,te
-------
hie 110. 8
Ground Water Votatlte Orlanlc Resutt.
Mound Ar..
Rnul t8 report8d In ug/t
Wen Date 1,1,1-Trlch 1,1.2.2-Tetr 1.1.2-Trlch 1,1-Dlchtor 1,1-Dlchlor 1,2-Dlchtor '.2-Dlchtor 1,2-Dlchtor cl.-1,)-Olch tr_-I,2-01 tr_-1,)-OI 2-Chtoroethy'
IIUllber S8IIpt 8d 'oroethane achtorethane 'oroethane oethane oeth- oethane oeth- opropane htoropropene chtoroethane ch'oropropene Vlnyt Ethar
....... ....... _a........ ............. .......... ........... ............ a.a........ ........... ........... ............ ............ ............. .............
2087 U-AUG-9, 5 U 5 U 5U 5 U 5 U 5 U 5 U 5 U 5U 5 U
2387 10-SEP-87 5U 5 U 5 U 5 U 5U
2387 02-MI-" 5U 5 U 5U 5 U 5U 5U 5 U 5U 5 U 5U 10 U
2387 09-MAY-II 5 U 5 U 5U 5 U 5 U 5 U 5U 5 U 5 U 5 U .10 U
2387 1O-AUG-" 5U 5U 5 U 5 U 5 U 5 U 5 U 5U 5U 5U 10 U
2387 O)-.lg-89 5 U 5 U 5U 5 U 5 U 5 U 5U 5 U 5U 5 U 10 U
2387 07-fEI-89 5U 5U 5 U 5 U 5 U 5U 5 U 5 U 5 U 5 U
2387 OJ-MAY-89 5 U 5U 5 U 5 U 5 U 5 U 5U 5 U 5 U 5U
2387 07-AUG-89 5 U 5 U 5U 5 U 5 U 5U 5U 5U 5 U 5 U 5 U 10 U
Wen Date 2-But- 2-"e.- 4-Methyt-2 Acetone Benz- Brcnodlcht Ir_fol1l Br- Carbon Carbon Tat Cht oro Chtoro
IlUllber S8IIpt ed penta- or-th- _thine . dl.utflde trachtorlde benz- ethane
...... ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
2087 15-AUG-91 10 U 10 U 10 U 18 I 5 U 5 U 5U 10 U 5 U 5 U 5 U 10 U
2387 10-SEP-87 5 U
2387 02-MI-" 10 U 10 U 10 U 10 U 5 U 5 U 5U 10 U 5 U 5 U 5U 10 U
2387 09.MAY-II 10 U '0 U '0 U 10 U 5 U 5 U 5 U 10 U 5 U 5 U 5 U 10 U
2387 'O-AUG-" 10 U '0 U '0 U 10 U 5 U 5 U 5 U '0 u 5 U 5 U 5 U 10 U.
2387 O)-.lAII-89 .10 U 10 U 10 U '0 U 5 U 5 U 5 U '0 U 5 U 5 U 5 U 10 U
2387 07-fEI-89 10 U 10 U 10 U 10 U 5 U 5U 5U 10 U 5 U 5 U 5U '0 U
OJ-MA'-89 '0 U 10 U '0 U '0 U 5 U 5 U 5U .10 U ' 5 U 5U 5U 10 U
2387
2387 07-AUG-89 10 U '0 U 10 U '0 U 5 U 5U 5U '0 U 5 U 1.1 5U 10 U .
Wen Date c:h'orofol'll Chloro Dlbr-ht Ethyt Mathyt- Styr- 'etrachtor Tot- 'ota' Trlchtoro Vlnyt . Vlnyt
IIUllber S8IIp'8d ..thane or_thane lenz1n8 c:htorlde oeth- Xyt_. ethene Acetate c:h'orlde
..-. ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
2087 '5-AUG-9' SU '0 U 5U 5U 5 U 5 U 4.1 5U 5U 5 U 10 U 10 U
2387 10-IIP-87 5 U 5 U 5 U
2387 02-MAl-88 5 U '0 U 5U 5U 8 5U 5 U 5 U 5U 5U 10 U '0 U
2387 09-MA'.1I 5U '0 U 5U 5 U 5U 5U 19 5 U 5 U 5 U '0 U '0 U
2387 'O-AUG-" 5U '0 U 5 U. 5U 5 U 5 U 5 U 5 U 5 U 5 U 10 U 10 U
2387 O)-.lAII-89 ) .II 10 U 5 U 5U 6 I 5 U ) .I 5 I 5 U 5 U '0 U 10 U
2387 07-fEI-89 2 .I 10 U 5U 5 U 5 U 5U 5 U 5 U 5 U 5 U. 10 U 10 U
2387 03-MAY-89 5 U 10 U 5U 5 U 5 U 5U 74 5 U 5 U 5U 10 U 10 U
2387 07-AUG-89 5 U 10 U 5U 5U 5U 5 U 1 .I 5 U 5 U 5 U 10 U 10 U
tJ8An8tp8d but not detect8d .I-Pr..ent IMtOll! detection U.1t E-E.tl..ted V.tu. OoOHuted S8IIpte
-------
p... .0- 1
Ground Uat.r Voiatli. Orgenlc ...uit.
Mound Ar..
a.auit. reported In UI,I
118.. D.te 1,1,1-Trlc:h 1,1,2,2-T.tr 1,1,2-Trlch 1,1-0lchior 1,1-0lchior 1,2-Dlchior 1,2-Dlchior 1,2-Dlchior cl.-1,]-Dlch tr_-1,2-DI tr_-1,]-DI 2-Chioroethyl
IkIII»r ",Ied loroeth- 8c:hlor.th- loroeth- oeth- oethene oethane oethene opropene hloropropene chloroethene chloropropene Vinyl Eth.r
.-... ....... ........... ............. .......... ........... ............ ........... ........... ........... ............ ............ ............. .............
2087 O-NAY-89 5 U 5 U 5U 5 U 5 U 5 U 5 U 5U 5 U 5 U
2081 "-AUG-89 5 U 5 U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 10 U
2081 "-DEC-89 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U
2087 OP- FEI-90 5U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U .10 U
2087 22-NAY-90 5 U 5U 5 U 5 U 5 U 5 U 5U 5 U 5 U 5 U
2087 27-JUL-90 5 U 5U 5 U 5 U 5 u 5 U 5 U 5 U 5U 5U
2087 08-IICJV-90 5U 5U 5 U 5 U 5 U 5 u 5 U 5U 5 U 5 U
2081 19-MAR-91 5 U 5U 5U 5 U 5 U 5 U 5U 5U 5 U 5 U
2087 10-NAY-91 5 U 5U 5 U 5 U 5 U 5 U 5 U 5U 5U 5 U
118" Oat. 2-lut.-.one 2-".II.-.one 4-Methyl-2 Ac.tone 8enzene 8rC8Jdlchi 8r_'ol1l 8r- Carbon Carbon Tet Chioro Chioro
.Ulllber IlIIIpi ed pant.... orGMthene _th- dl.ulflde trechlorlde benzene .thene
...... ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
2087 OJ-NAY-89 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U 5U 5 U 10 U
2081 "-AUG-89 10 U 10 U 10 U " 5U 5 U 5 U 10 U 5 U 5 u 5 U 10 U
20117 "-DEC-89 10 U 10 U 10 U 22 1 5 U 5 U 5 U 10 U 5 U. 5U 5 U 10 U
2087 OP-FII-90 10 U 10 U 10 U 6 J 5 U 5U 5 U 10 U 5U 5 U 5 U 10 U
2087 22-~Y-90 10 U 10 U 10 U 9 JI 5 U 5U 5 U 10 U 5U 5U 5 U 10 U
2087 27-.'UL-90 10 U 10 U 10 U 10 U 5 U 5U 5 U 10 U 5 U 5 U 5 U 10 U
20117 08-IICJV-90 10 U 10 U 10 U 4 J 5 U 5U 5 U 10 U 5U 5 U 5 U 10 U
2087 "-MAR-91 10 U 10 U 10 U ] J 5 U 5U 5 U 10 U ' 5U 5 U 5 U 10 U
2087 10-MAY-91 10 U 10 U 10 U 10 U 5 U 5U 5 U 10 U 5U 5 U 5 U 10 U .
118" Dlt. Chloroforll Chioro Dlbr-"I Ethyl Nethyi- Styr- 'etrechlor Toi- Tot.1 Trlchioro Vinyl Vlnyi
.Ulllber ...Ied _t"- or_t"- 18nz- Chiorlde oeth- Xyl.... ethene AceUte Chiorlde
.....- ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
2087 O-NAY-89 5U 10 U 5U 5U 5U 5 U ]7UE 5U 5U 5U 10 U 10 U
2017 OP-AUG-89 5U 10 U 5 U 5U 5U 5 U 140 5 U 5U ] J 10 U 10 U
2087 1J-D£C-89 5U 10 U 5 U 5U 11 5U 5 U 5U 5U 5 U 10 U 10 U
2017 OP-FEI-90 5U 10 U 5U 5 U ] J 5U ]9 5 U 5U 2 J 10 U 10 U
2087 U-MAY-90 5 U 10 U 5U 5U 61 5 U 1 J 5U 5U 5U 10 U 10 U
2087 21-JUL-90 5 U 10 U 5U 5 U 4 IJ 5U 5U 5U 5 U 5U 10 U 10 U
2087 08-IICJV-90 5U 10 U 5 U 5U 5 U 5 U 11 5U 5U 5 U 10 U 10 U
2087 "-MAR-91 5 U 10 U 5 U 5U 5 U 5 U 1 J 5U 5 U 5 U 10 U 10 U
20117 10-MY-" 5 U 10 U 5 U 5 U ] J 5 U 5 U 5U 5 U 5 U 10 U 10 U
U-AnIIiyzed but not detected J-Pr..ent belCN detection U.lt E-E.tl..ted V.lue O-Olluted S.-ple
-------
'8.e 110.
10
Ground Weter Votetlte Organic ae.utt.
Mound Area
.esult. reported In "Ill
WIll 'ate 1,1,1-Trlc:h 1,1,Z,Z-Tetr 1,1,Z-Trlch 1,1-Dlchlor 1,1-0lchlor 1,Z-Olchlor 1,Z-Dlchlor 1,Z-Olchlor cl.-1,]-Olch trana-1,Z-OI trana-1,]-DI Z-Chloroethyl
llueer IIIIpI ed lor08thane achlorethane lor08thane oathane oethane oethane oathane apropane hloropropene chloroethene chloroprapene Vinyl Ether
...... .._a ....-..... ...-.--. -.--.. ........... ............ ........... ........... ........... ............ ............ ............. .............
4586 26-MJG-87 5u 5U 5 U 5 U 5U
4586 O5-M-90 5U 5U 5U 5U 5 U 5 U 5U 5 U 5 U 5 U
4386 ZO---91 5U 5U 5U 5U 5 U 5 U 5U 5 U 5 U 5U
2-lut- Z-Hex- 4-...thyt.-Z Acetone lenl- IrOlllOdlcht Ir_fol'll 11'- carbon Carbon' et Chtoro Chtoro
p8nt- or_thane .thene dl.ulflde trachtorlde benz- eth-
........... ............. .......... ........... ........... ...........
lieU Dlte
.Wllllr S8IIpled
.-.. .......
4586 26-AtJG-87
4586 O5-M-90
4586 ZO-AUG-9t
Yell Date
.lIIIbor lallpl ad
.._a. .......
4586 Z6-AIII' ,87
4386 05- JUII- 90
4386 2O-AUG-"
........... ............ ............ ............. ........... ..........
5U
10 U 10 U 10 U 291 5 U 5 U 5 U to U 5U 2 J 5 U 10 U
10 U 10 U 10 U 4 IJ $ U 5 U 5 U to U 5u ] J 5U 10 U
Chlorofol'll Chloro Dlbr080Chl Ethvl Methvlene Styrene Tatrlchlor Toluene Total Trlchloro Vinyl Vinyl
I _thane or_th- lena- Chloride oath- lCyl... eth- Acetate Chloride
........... ............. .......... ........... '........... ........... ........... .........~.. ............ ............. ........... ..........
5 U 5 U 5 U
5 U 10 U 5 U 5U Z J8 5 U 5 U 5 U 5U 5U 10 U 10 U
5U to U 5 U 5U 5 U 5U 5U 5 U 5U 5 U 10 U to U
,
u-An8lyzed but not detected
A~lptable Mlth qu8ll'Icetiona
J.pr..ent below detection 1I.1t
V-Vat Id end 8CClptable
E-Eltl..tad Value
."eJected
-------
'lie 110. 9
Ground W.ter VoL.tlLe Orgenlc R..uLt.
Mound Are.
Result. reported In UIIIL
WeU O.te 1,1,1-Trlch 1,1,2,2-Tetr 1,1,2-Trlch 1,1-0lchlor 1,1-0lchLor 1,2-0lchlor 1,2-0lchLor 1,2-0lchior cl.-1,3-0Ich tr_-1,Z-01 tr_-1,3-01 2-ChloroethyL
I1l8Ir ...Led loroethene .chlor.thene loroethene oethene oeth- oethene oeth- opropene hLoroprapene chioroethene chLoropropene VinyL Ether
.._a ...-.. . _a........ ............. .......... ........... ............ ........... ........... ........... ............ ............ ............. ....~........
2387 04-IEC-" 5U 5 U 5 U 5 U 5U 5 U 5U 5 U 5 U 5U
2387 2O-FEI-9O 5U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U
2387 01-.01-90 5U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5U
2387 09.!IOV-9O 5 U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U
2387 08-MAl-91 5 U 5U 5 U 5 U 5 U 5 U 5U 5 U 5 U 5 U
2387 19-APII-91 5 U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U
2387 19-MJG-91 5 U 5U 5 U 5 U 5u 5 U 5 U 5 u 5 U . 5 U
4386 1'-MAl-87 4 U 4U 4 U 4U 4U
4386 03-"'-87 4 U 4 U 4 u 4 U 4U
lieU O.te 2.lut- 2-"e.- 4-Methyl-Z Acetone lenz- 8rC8xUcht Ir_fol'll 8r- C.rbon C.rbon T.t Chloro Chi oro
I1l8ir ",Led pent- or_th- _th- dl.uUlde trlChiorlde benz- .th-
...... ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
2387 04-0EC-" 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U 5U 5 U 10 U
2387 20-FEI-9O 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U 5 U 5 U 10 U
2387 01-.'011-90 10 U 10 U 10 U 10 U 5U 5 U 5U 10 U 5 U 5 U 5 U 10 U
2387 09-/IOV-9O 10 U 10 U 10 U 10 U 5U 5 U 5 U 10 U 5 U 5U 5 U 10 U
2387 08-MAl-91 10 U 10 U 4 J 248 5U 5 U 5 U 10 U 5 U 5U 5U 10 U
2387 19.APII-91 6 J 10 U 10 U 10 U 5 u 5 U 5 U 10 U 5U 5U 5 U 10 U
2387 19-AUG-91 10 U 10 U 1'0 U 4 8J 5 U 5 U 5 U '10 U 5U 5U 5 U 10 U
4386 11-Mlt-87 , 6
4386 0)-"'-87 4U
lieU . O.te Chlorofol'll Chiaro Dlbr-"I EthyL "ethyL- Styr- T.trechior Tal.... Tot.I TrlchLoro VinyL VinyL
11181' ...Ied _thene or.-thene lenzene Chloride oethene lCyl.... ethene Acet.te Chloride
...- -~. ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
2387 04-DEC-" 5U 10 U 5U 5U 2 JI 5 U 5 U 5U 5U 5 U 10 U 10 U
2387 2O-FEI-9O 5U 10 U 5U 5U ] JI 5 U 1.. 5U 5U 5U 10 U 10 U
2387 01-"'-90 5 U 10U 5U 5 U 2..1 5U 5 U 5U 5U 5 U 10 U 10U
2387 09-!IOV-9O 5U 10 U 5U 5U 5U 5U 1 J 5U 5 U 5U 10 U 10 U
2387 OI-Mlt-91 5U 10U 5U 5 U 2 I" 5 U 1.. 5U 5U 5U 10 U 10 U
2387 19-AI'II-91 5 U 10 U 5 U 5U 5U 5 U 5U 5U 5U 2 .. 10 U 10 U
2387 19-AUG-91 5 U 10 U 5 U 5 U 3.. 5 U 5 U 5U 5 U 5 U 10 U 10 U
4386 11-MAl-87 4 U 4 U 8
4386 03-"'-87 4U 4 U 4 U
UaAt18Lyzed but not detected "-Pr..ent b810t1 detection U.1t E-E.tl..t8d V.Lue DaDILuted S88pLe
-------
'I" .0. Z
Ground Water Volltlle Orgenle .esults
E.st Trench.. Are.
.esul ts reported In ug/l
118tt Dlte 1,1,1'Trlch 1,1,Z,Z-Tetr 1,1,Z-Trlch 1,1-Dlehlor 1,'-Dlehlor 1,Z-Dlehlor 1,Z-Dlchlor 1,Z-Dlchlor els-1,]-Dlch tr_-1,Z-DI tr_-1,]-DI Z-Cflloroethyl
.ue.r ...Ied loroethlnl 8Chlorethlnl loroethlnl oeth- oeth- oethene oeth- opropent hloroproptM ehloroeth- ehloroproplnl Vinyl Ether
...- .....- .....--.. ............. .......... ........... ............ ........... ........... ........... ............ ............ ............. .............
0286 11-DEC-89 5 U 5U 5u 5 U 5 U 5 U 5 U 5U 5U 5U
0Z86 "-"-90 Su 5U 5U 5 U 5U 5U 5U 5 U 5U 5U
0286 07-"'-90 5 U SU 5U 5 U 5 U 5U 5 U 5 U 5U 5U
0286 06-.'-90 5 U 5U su 5 U 5 U 5 U 5 U 5 U 5 U SU
0286 15-101/-90 5 U 5U S U 5 U 5 U 5 U 5U 5 U 5U 5 U
0286 1t-"'-" 5 U 5U 5 U 5 U 5 U 5U 5U 5U 5 U 5 U
0Z86 11-IE'-" 5 U SU SU S U 5 U 5U 5U 5U 5U 5U
0374 -AUG-86 SU 5U 5U 5 U ]" 5U 5U 5U Z" 5U 10 U
0374 11'''-17 10 4U I 4U 5
118\1 Dlte z-aut.... Z-He..... 4-M8thyl-Z Acetone lenl- BrC80dlehl Ir_fol'll Ir- Clrbon Cerbon Tet Chloro Chloro
.ue.r ...Ied pent.... or_thlnl _th- disulfide trIChloride btnz- ethlnl
..-. ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
0286 11-DEC-89 10 U 10 U 11' U " 5 u 5 U 5U 10 U 5 U 5U 5U 10 U
OZ86 1t-MAR-9O 10 U 10 U 10 U 10 U 5 U 5 U 5U 10 U 5 U 5U 5U 10 U
0286 07-"'-90 10 U 10 U 10 U 10 U 5U 5 U 5U 10 U 5 u' 5U 5U 10 U
0Z86 06-.'-90 10 U 10 U 10 U 10 U 5 U 5U 5U 10 U 5 U 5U 5U 10 U
0286 15-101/-90 10 U 10 U 10 U 10 U 5U 5 U 5 U 10 U 5U 5U 5U 10 U
0286 "-"'-" 10 U 10 U 10 U 4 ." 5 U 5 u 5 U .10 U 5 U 5U 5 U 10 U
0Z86 11-.'-" 10 U 10 U 10 U 10 U 5U S U 5 U 10 U 5 U 5U 5 U 10 U
0374 -AUG'86 10 U 10 U 10 U 4.. 5U 5U 5U 10 U ' Z " ZIO 5U
10 U
0374 17-"-17 1200
118\1 De'e ChlorofOl'll . Chloro DtbrC8lChI Ethyl llethyl- Styr- T.tr8chlor Toluene Totll Trlchloro Vinyl Vinyl
....... ",Ied _thlnl or_'hInI lenz- Chloride oethene Kyl.... ethene Acetate Chloride
- - ........... .----------.. ......~ ........... ........... ........... ........... ............ ............ ............. ........... ..........
0Z86 11-DlC-" SU 10 U 5U 5U 5 U SU SU SU SU 5U to U 10 U
0Z86 19-"-90 S U 10 U 5U 5U ] "I 5U 5U SU SU 5 U 10 U 10 U
0286 07-"'-90 5 U 10 U 5U 5U ] "I 5U SU SU S U 5U 10 U to U
0Z86 06-.'-90 S U to U su SU 5U 5U 5U 5U SU 5U 10 U 10 U
0Z86 15-101/-90 5 U 10 U SU SU ,." 5U S U S U SU 5U 10 U 10 U
0ZI6 19-"'-" 5 U to U 5U 5U 5U 5 U 5 U 5 U 5 U 5U 10 U 10 U
0Z86 11-.'-" SU' 10 U 5 U 5U 5U 5 U 5U 5 U 5 U 5 U 10 U 10 U
0374 -AUG-86 t9 10 U 5 U 5U 4 " 5 U 450 5 U 5 U Z40 10 U 10 U
0374 17-"'17 ]5 480 ZOO
IJ8An8lyzed but not detected ""r..ent below detection I 181t E-Estl8lted Vllu. D-Dlluted S-.ple
-------
'''' 110.
Ground V.t.r Vol.tll. Or8enlc _..ult.
EI.t Trench.. Ar'l
-Hultl reported In Ut/l
...11 alt. 1,I,I-Trlch 1,I,Z,Z-Tetr 1,I,Z-Trlch 1,1-01chlor 1,1-0lchlor I,Z-Olchlor I,Z-Olchlor I,Z-Olchlor cla-I,S-Olch tr...-I,Z-OI tr...-I,S-OI Z-ChlorOlthyl
!hillier I8IIpled lor08thlnl achlorethane lor08thane 08thane OIthene OIthane OIthene opropane hloropropene chlor08thene chloroprapene Vlnvl Ether
--- ___a ..........- .......--. ---.. ........... ............ ........... ........... ........... ............ ............ ............. .............
OZ86 11-MY-17 4U 4U 4 U 4U 4U
OZ86 01-"'-87 4 U 4U 4U 4U 4 U
0Z86 20-""-87 4 U 4U 4U 4U 4U
0Z86 SHIM-88 5 U 5U 5U 5 u 5 u 5U 5 U 5 U 5 U 5 U
0Z86 02-"'-88 5U 5 U 5U 5 U 5U 5U 5U 5 U 5 U 5U 10 u
0286 26-M-89 5U 5 U 5 U 5U 5 U 5U 5 U 5U 5U 5 U 5U 10 U
0286 30- .IlII-89 9 5 U 5U 5 U 5 U 5 U 5U 5 U 5 U 5 U
0286 11-M-89 5 u SU 5U 5U 5 U 5 U 5 U 5U 5U 5U
0Z86 CD-AUG-89 5 U 5 U 5 U 5u 5 U 5 U 5 u 5U 5 u 5U
...11 aate Z -SUtlnllfll Z-He.1nIIfII 4-Methyl-Z Ac.tone Benzene Br08ICUchi IrCl8tfol'1l BrCl8t Carbon Clrbon Tet Chloro Chloro
ItUllber 1..1 ed pentlnllfll or..thene Mthene dlaulflde trIChloride benzene ethane
--- .....- ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
0286 11-MY-87 4 U
OZ86 01-"'-87 4 U
0286 20-JUL-87 4 U
0Z86 SI-MII-88 10 U 10 U 10 U 10 U 5U 5U 5 U 10 U 5U 5U 5 U 10 U
OZ86 oz- ""'-88 10 U 10 U 10 U 10 U 5 U 5U 5 U 10 U 5U 5 U 5U 10 U
0Z86 26-"'-89 10 U 10 U 10 U 10 U 5 U 5U 5U 10 U 5U SU 5 U 10 U
0286 10-""'-89 10 U 10 U 10 U Z" 5U 5U 5U 10 U 5U 5U 5U 10 U
0Z86 11-JUL-89 10 U 10 U 10 U 10 U 5U 5U 5U 10 U ' 5U 5 U 5 U . 10 U
0Z86 OS-AUG-89 10 U 10 U 10 U "I 5U 5U 5U 10 U 5U 5U 5 U 10 U .
...11 alte ChlorofOl'll I2Iloro albr08lchI Ethyl Methylene Styr- TltrlChlor Tol- Totll Trlchloro Vlnvl Vlnvl
ItUllber I8IIpled _thane or-th- l8nzane Chloride OIth- .yl... eth- Acetlte Chloride
- - ...........----------.... .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
0Z86 "-MY-17 4U 4U 4U
0Z86 01-"'-17 4U 4U 4U
0Z86 20-""-17 4U 4U 4U
0ZI6 51-"-88 5U .10 U SU 5U 24 5U 5 U 5U 5U 5U 10 U 10 U
0Z86 02-"'-88 5U 10 U SU 5U SU 5 U. SU 5U SU 5U 10.U 10 U
0Z86 26-"'-89 SU 10 U SU 5U 5 U 5 U 5U 5 U SU 5U 10 U 10 U
0Z86 10-"'-89 5U IOU 5U 5 U 5 U 5 U 5 U 5U 5U 5 U 10 U 10 U
0Z86 11-M-89 5U 10 U 5U 5 U 5 U 5U 5U 5U 5U 5 U '0 U 10 U
0Z86 OS-AUG-89 5U 10 U 5U 5 U 5U 5U 5 U 5 U 5U 5 U 10 U ~O U
U-Anll12ed but not detected J"r....t below detection If.lt E-EIU_ted Velu. O-Dlluted 1..1.
-------
Page liD. 4
Ground Water Volatile Organic .eaulta
Eaat Trench.. Are.
.Hutta reported In UtIli
We" Date 1,1,1-Trlch 1,1,Z,Z-Tetr 1,1,Z.Trlch 1,1-0lchlor 1,1-0lchlor 1,Z-Olchlor 1,Z-Olchlor 1,Z-Olchlor cll-1,]-Dlch trena-1,Z-DI trena-1,]-DI Z-Chtoroethyl'
IIUlllber SIIIpI ed loroeth- achtoreth- loroeth- oeth- oeth- oethane oeth- opropll18 hloropropene chtoroethene chloropropene Vinyl Ether
.-.- ....... ........... ............. .......... ........... ............ ........... ........... ........... ............ ............ ............. .............
0374 25-.Y.9O 5 5U 5 u 5U SU 5 u 1Z 5U 5 u 5U
0J74 01-AlJG-9O 4 J Z J 5 U 5 U ] J 5 u 8 5 U 5 U 5U
0374 t6-1IOV-9O 5 U 5 U 5 U 5 U 4 J 5 U 5 U 5 U 5U 5 U
0374 Z4-APR-91 5 U su 5 u 5U 2 J 5 u 5 U 5 U 5U 5 U
0374 U-MJG-91 10 U 10 U 10 U 10 U 10 U 10 U 4 .. 10 U 10 U 10 U
0)86 - -SEP-86 5 U 5 U 5 U 5U 5 U 5 U 5 U 5U 5 U 5 U 10 U
0)86 12-MAY-87 4 U 4 U 4U 4 U 4 U
0386 08- JU11-8T 4 U 4 U '" U '" U '" U
0J86 Z4-"UL-87 4U 4 U 4 U 4U 4 U
We" Date Z-8ut- Z-He.anona 4-MlthVl.Z Acetone 8enzene BrOlllOdlchl BrC81forll IrC80 Carbon Carbon Tet Chloro Chtoro
IlUlliber SlIIpled pentanona or_thane Mthane dlaulflde trlchtorlde ben1ene ethane
...... ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
0374 25-MAY-9O 10 U 10 U 10 U 8.. 5 U 5 U 5 U 10 U 5 U 650 5 U 10 U
0374 01 -AlJG-9O 10 U 10 U 10 U 8 I" 5 U 5 U 5 U 10 U 5 U 4Z0 0 5 U 10 U
0374 16-1IOV-90 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U 6400 5 U 10 U
0374 24-APR-91 10 U 10 U 10 U 2.. 5 U 5 U 5U 10 U 5 U 160 5 U 10 U
0374 ZZ-MJG-91 ZO U 20 U 20 U 20 U 10 U 10 U 10 U 20 U 10 U 230 10 U 20 u
0)86 - -SEP-86 10 U 10 U 10 U 8 8.. 5 U 5 U 5 U 10 U ] .. 5 U 5 U 10 U
0386 1Z-MAY-IT 4 U
0386 08-"UII-87 ' 4U
0J86 Z4-JUL-87 4U
Well Oat. Chlorofo... Chloro DlbrC81Chi Ethvl Methylene Styr- T.trachlor Toluene Tot.l Trlchloro Vinyl Vinyl
.....r SlIIpled _th- orC88th- 18n1- Chloride oethene .Vl... .thene Ac.tlte Chloride
--- ..-... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
0374 25-MAY-9O 2' 10 U 5U 5 U 6 5 U 160 5U 5 U 85 10 U 10 U
0374 at -MJG-9O 14 10 U 5 U 5U ].. 5U 100 5 U 5 U 59 10 U 10 U
0374 t6-1ICJV-9O 15 10 U 5U 5U 5 U 5U 140 5 U 5U 73 10 U 10 U
0374 24-APR-9t 11 10 U 5 u 5 U 5 U 5U J6 5 U 5 U 20 10 U 10 U
0374 22-AUG-91 11 20U 10 U 10 U 10 U . 10 U 5] 10 U 10 U ]2 ZO U 20U
0386 _-IE,-86 5U .10 U . 5 U 5 U 2.. 5U 5 U 5 U 5U 5 U tau
10 U
0386 12-MAY-87 4 U 4U 4U
0J86 08-"111-87 4U 4U 4 U
0386 24-JUL-87 4 U 4U 4U
UaAnlllvzed but not detected ...pr..ent below detection 1I.lt E-Eatl..ted V.lue D-Diluted S8Ipte
-------
Pale 110. 3
Ground Water Volatile Orlenlc .e.ult.
Ealt Trenche. Area
aelultl reported In Ul/l
well Date 1.1,1-Trlch 1.1.Z.Z-Tetr 1,1,Z-Trlch 1,1-Dlchlor 1,1-Dlchlor 1,Z-0lchlor 1,2-0lchlor 1,Z-0lchlor cla-1.3-0Ich tr8nl-1,2-01 tr8nl-1,3-01 Z-Chloroethvl
IIlJIDtr IIIIpI ed lor08thane achlorethane lor08thane oeth- oeth- oeth- oeth- . opropene h loropropene chloroeth- chloropropene Vinyl Ether
...... ....... ........... ............. .......... ........... ............ ........... ........... ........... '.......c.... ............ ............. .............
0374 0]-.1111-87 4U 4U 32 1Z0 4U
0374 03-SEP-i7 ZZ 5U ZZ 5 U 5 U
0374 03-1tA1-88 Z5 5 U 5U 5 U 5U 5 U 5 U 5 U 5U 5 U 10 U
0374 04-MY-88 5 U 5 U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5U .10 U
0374 19-MJG-88 5 5 U 5U 5 U 5U 5 U 5 U 5 U 5 U 5 U
0374 10-1IOV-88 5 U 5U 5U 5U 5 U 5 U 5 U 5 U 5 U 5U 10 U
0374 DI-MY-89 5 U 5 u 5U 5 U 5U 5 U 5 u 5 U 5 U 5 U
0374 Z1-MJG-89 5 U 5 U 5U 5 U 2 .I 5 U 5 U 5 U 5 U 5 u 5 U 10 U
0374 n-SEP-89 4.. 5U 5U 5 U 3.. 5 U 5 U 5 U 5 U 5 u 5U 10 U
well Oata Z-Butanone 2-He.- 4-Methvl-2 Acetone Benz- BrC8ldlchl Ir-fol'll Br- Carbon Carbon Tet Chloro Chloro
IIlJIber SlIIpled pent- orOMthane ..th- dl.ulflde trachlorlde benz- eth-
...... ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
OJT4 03-.1111-87 1ZOO
0374 03-SEP-87 1885
0374 03-Ma-88 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U 461 5 U 10 U
0374 04-MY-88 '0 U 10 U 10 U 10 U 5 U 5 U 5 U '0 U 5 U 380 5 U '0 U
0374 19-MJG-88 10 U '0 U 10 U 10 U 5 U 5U 5U '0 U 5 U 495 5 U 10 U
0374 10-1IOV-88 10 U '0 U 10 U '0 U 5 U 5 U 5 U '0 U 5 U 1755 5U 10 U
0374 DI-MY-89 10 U 10 U 10 U 10 U 5U 5U 5 U 10 U 5 U 1100 5U 10 U
0374 Z1-MJG-89 10 U 10 U 10 U 10 U 5U 5 U 5 U 10 U " 5 U 290 5 U 10 U
0374 n-.p-89 10 U '0 U 10 U 10 U 5 U 5 U 5 U '0 U 5 U 470 5 U 10 U .
well Date Chlorofol'll Chloro OlbrC8Odll Ethvl Methvl- Stvr- Tetrechlor TolU1f18 Total Trlchloro Vinyl Vinyl
Ik8er ",led _thane or08thane lem- Chloride oath- XVl-- eth- Acetete Chloride
.-.- .._a. ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
0374 03-"'-87 6 1080 400
0374 0]-.P-87 45 345 218
0374 0]-1WI-88 ZO 10 U 5U 5 U 5U 5U 103 5U 5 U 55 10 U 10 U
0374 04-MY-88 5U 10 U 5U 5 U 5U 5U 103 5U 5 U 133 10 U '0 U
0574 19-9-88 5U 10 U 5U 5 U 5U 5 U 118 5 U SU 49 10 U '0 U
0374 10-1IN-88 '0 '0 U 5U 5 U 5 U 5 u 100 5U 5U 81Z 10 U 1G u
0374 DI-MY-89 11 .. 10 U 5 U 5 U 5U 5 U 50 5 U 5 U Z5 10 U 10 U
0374 Z1-MJG-89 14 '0 U 5 U 5 U 5U 5 U 75 5U 5 U 51 10 U 10 U
0374 11-.P-89 18 10 U 5 U 5 U 5 U 5 U 110 5U 5 U 58 10 U 10 U
UaAn8lvzed but not detected J.Present bel. detect Ion 11.1 t E-Eltl..ted Value 01101 luted SlIIple
-------
P8ge 110. 6
Ground Water Yotatlte Organic lesutta
Eaat Trench.. Are.
lnuU. reported In IIII/t
Weu D.te 1,1,1-Trlch 1,1,Z,Z-Tetr 1,1,Z-Trlch 1,1-0lchtor 1,1-0lchtor 1,Z-0lchtor 1,Z-0lchtor 1,Z-0lchtor cl.-1,3-0Ich, tr_-1,Z-01 trans- 1 ,3-0 I Z-Chloroethyt
llulber 1811pted toroethane achtorethane toroathane oathane oeth- oeth- oath- opropene htoropropene chtoroeth- chtoropropene Ylnyt Ether
...... ....... ....._a... ............. .......... ........... ............ ........... ........... ........... ............ ............ ............. .............
0316 OZ-AlJG-89 5U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U
0316 11-DEC-89 5U 5U 5 U 5 U 5 U 5 U 5 U 5U 5 U 5 U
0316 ZHWt-9O 5 U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U
0316 08-M-9O 5 U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5U 5 U
0316. 06-SEP-9O 5 U 5 U 5 U 5U 5U 5 U 5 U 5 U 5 U 5U
0316 15-!IOV-9O 5 U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U
0386 "-Ml-91 5U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U
0316 20-JUII-91 5U 5U 5 U 5 U 5 U 5 U 5 U 5 U II 5U
0774 - -AUG-86 5 U 5U 5 U 5 U 5 u 5 U 5 U J U 5 U 5 U 10 U
Wett Date Z-Iut- Z-Hex- 4-Methyt-Z Acetone lenz- Ir~lcht Ir_fol'll Ir- C.rbon Carbon Tet Chloro Cht oro
lIumer -..ted .pent- or_thane _thana disulfide trachtorlde benz- ethane
...... ....... ........... ............. .......... ........... ........... ........... ........... ........~... ............ ............. ........... ..........
0316 OZ-AUG-89 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U 5 U 5 U 10 U
0386 1a-DEC-89 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U 5 U 5 U 10 U
0316 a-Ml-9O 10 U 10 U 10 U 10 U 5 U 5U 5 U 10 U 5 U 5 U 5 U 10 U
0316 08-JUII-9O 10 U 10 u 10 U 6 .II 5U 5 U 5 U 10 U 5 U 5 U 5 U 10 U
0316 06-SEP-9O 10 U 10 U 10 U I 1.1 5 U 5 U 5 u 10 U 5 U 5 U 5 U 10 u
0316 "-!IOV-9O 10 U 10 U 10 U 10 U 5 U 5U 5U 10 U 5 u 5 U 5 U 10 u
0316 "-Ml-91 10 U 10 U 10 U "I 5 U 5U 5 U 10 U 5 U 5 U 5U 10 U
ZO-JUII-" 10 U 10 U 10 u 10 U 5 U 5U 5 U 10 U "' 5 U 5 U
0J86 5 U 10 U
0174 - -MJG-86 10 U 10 U 10 U 10 U 5 u 5 U 5 U 10 U 3 IJ 5U 5U 10 U .
WlU O.te Chtorofol'll Chtoro OlbrC8DCht Ethyt Methytene Styr- Tetrator Totuene Totet Trlchtoro Vlnyt Vlnyt
lIumer ...ted _thane or_thane lenz- Chtorlde oath- Xyt... ethane Acetete Ch tor Ide
.-.- ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
0316 OZ-AtJG-89 5U 10 U 5 U 5 U 61 5 II 5 U 5U 5 U 5U 10 U 10 u
0J86 "-OEc-at 5U 10 U 5U 5 U :5 J 5 II 5 U 5U 5 U 5 U 10 U 10 U
0J86 a-MAl-9O 5 U 10 U 5U 5 U 4.11 5U 5 u 5 U 5 U 5U 10 U 10 U
0J86 0I-JUII-9O 5U 10 U 5U 5 U Z .II 5U 5 U 5 U 5 U 5U 10 U 10 U
0J86 06-SEP-9O 5 U 10 U 5 U 5U I I 5U 5U 5 U 5 U 5 U 10 U '0 U
0316 15-!IOV-9O 5U 10 u 5 U 5 u Z 1.1 5 U 5 U 5 U 5U 5 U 10 u 10 U
0316 14-MAl-91 5 U 10 U 5 U 5 U 16 5U 5 U 5 U 5U 5 U 10 U 10 u
0316 2O-JUII-" 5 U 10 U 5U , U , U 5 U 5 U 5 U 5U 5 U 10 U 10 U
0174 -AtJG-86 5 U 10 U 5 U 5 U 7 5 U '6 5U 5U 5U 10 U '0 U
-
U.Anlt yzed but not detected J.pr..ant bet«* detection ".It E-Eatl..ted V.tue 0.01 tuted S..te
-------
Page 110- 5
Ground Water Volatile Organic ...u't.
Ea.t Trenche. Aree
...ult. reported In Utl/l
we" Date ',','-Trlch ',',2,2-Tetr ',',2-Trlch ',1-Dlchlor 1,1-Dlchlor 1,2-Dlchlor 1,2-0lchlor ',2-0lchlor cl.-1,'-Dlch tr_-I,2-01 tr_-I,J-DI 2-Chtoroethyl
III888Ir IlIIIpl ad 'oroeth.... achloreth.... loroeth.... OIthane oethene oathane oethene opraplfle hloropropene chloroethene ch'oropropene Vinyl Ether
...... ....... . ........... ............. .......... ........... ............ ........... ........... ........... ............ ............ ............. .............
0386 14-DEC-87 5U 5 U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5 U
0386 'HWI-88 5u 5 u 5U 5 U 5 U 5 U 5 U 5u 5 u 5 u
0J86 02-8-88 5U 5U SU 5 u 5 U 5 u , u 5 u 5 u 5 u 10 u
0386 05-CX:T -88 5U 5U 5U 5 U 5 U 5 u SU SU 5 U 5U ,10 U
0386 21-OEC.88 SU 5U SU SU 5 u su 5 U 5 u 5 u 5 U 10 u
0386 29-IWt-89 5u 5U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 10 U
0J86 26-JUl-89 5 U SU SU 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 10 U
0386 29-JUl-89 SU SU SU 5 U 5 U 5 U 5 U 5 U SU 5 U
0386 12-.u.-89 5&1 5U 5U SU 5 U 5 U SU 5 U 5 U SU
..." Date 2-lut- 2-"..- 4-Methyl-2 Acetone 18I1z- Iramdlcht Ir-foMl Ir- Carbon . Carbon Tet Chtoro Chloro
lllIIIbtr 11IIIp' ed pent- or..thane 8th- dl.ulflde trachtorlde. benzene eth....
...... ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
0386 14.DEC-87 10 U 10 U 10 U 10 U 5 U 5 U 5 U tau 5 u SU 5 U 10 U
0386 JI-IWt-88 .10 U 10 U 10 U 10 U 5U 5 U 5 U 10 U 5 U 5 U 5 U 10 U
0386 02-JUl-88 10 U 10 U 10 U 10 U 'U , U , U 10 U , U , U 5 U 10 U
0386 05-CX:T-88 10 U 10 U 10 U 10 U 5 U , U SU 10 U 5 U , U 5 U 10 U
0386 21-DEC-88 10 U 10 U 10 U 10 U 5 U 5 U 5U 10 U SU 5 U 5 U 10 U
0386 29-IWt-89 tau 10 U 10 U 10 U 5 U 5 U 5U tau 5U 5 U 5 U IOU
0386 26-.IUII-89 10 U 10 U IOU 10 U 5 U 5 U 5U 10 U 5 U 5U 5 U 10 U
0386 29- JU11-89 10 U 10 U 10 U 10 U 5U 5 U 5U 10 U ' 5 U 5 U 5U 10 U
0386 12-.u.-89 10 U 1 "I 10 U 10 U 5U 5 U 5U 10 U 5U 5U 5 U 10 U '
We" Date ChlorofoMl Chloro DtbrGIDChl Ethy' Methy'" Styr- Tetrach'or Tol.... Totel Trlch'oro Vinyl Vinyl
llulber SlIIIpl ad 8tll.... or.."'- lenz- Chloride oeth.. Xy'''' eth- Acetate Ch'orlde
...-. .--- ........... .......----.. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
0386 "'-DEC-87 5U 10 U SU 5U 15.00 SU 5U 5U SU 5 U 10 U 10 U
0386 SHIM-88 5U 10 U 5 U 5U 24 5 U 5U 5U 5U 5 U 10 U 10 U
0J86 02-8-88 , U 10 U 5 U 5U 5U 5 U , U 5 U 5U 5 U 10 U 10 U
0386 05-CX:T-88 5U 10 u 5 U 5U 5U 5 U 5U 5 U 5U 5 U 10 U 10 U
0386 21-DEC-88 2 "I 10 U 5 U 5U 4..1 5U 5U 4..1 5U 5 U 10 U 10 U
0386 29-IW1-89 5U IOU 5 U 5U 7U 5U 5U 5 U 5U 5 U 10 U 10 U
0386 26-JUII-89 5U 10 U 5U 5U 5U 5U 5U 5 U 5'u 5 U 10 U 10 U
0386 29-".-89 5U 10 U 5 U SU 5U 5U 5 U 5U 5 U 5 u 10 U 10 U.
0386 12-JUL-89 5U 10 U 5 U 5 U 4.. 5 U 5u 5U 5 U 5 U 10 U 10 U
U-An8lyzed but not detected "-Pr..ent "'0tI detection ".It E-Eetl..ted Value D-Dlluted S-.ple
-------
'ag. 110. 8
Ground Uater Voiatlia Organic R.sutts
East Trench.. Ar.a
Resuits reported In Ul/i
WlU Oat. 1,1,1-Trl,h 1,1,2,2-T.tr 1,1,2-Trl'h 1,1-0lchior 1,1-olchior 1,2-0lchior 1,2-0lchior 1,2-0Ichior cla-1,3-0Ich tr_-' ,2-01 tr_-1,3-01 2-Chioroethyi
IlUiber 18IIPied 'or08thlM ac:h'or.thln8 'or08thane 08thane oeth- oethlne oeth- opropene ~ioropr~ chioroeth- ,hioropr~ Vlnyi Ether
.8_. ....... ........... ............. .......... ........... ............ ........... ........... ..........8 ............ ............ ............. .............
2274 03-1101/'90 .5 U 5 U 5U 5 U 5 U 5 U 2 J 5 U 5 U 5 U
2274 23-MY-91 5U 5U 5U 5 U 5 U 5 U 2 " 5 u 5u 5 U
2214 09-SEP-91 5 U 5 U 5U 5U 5 U 5 U 5 U 5U 5 U 5 U
2481 01-JUII-9O 40 5 U 5 U 5 U 5 U 5 U 5 u 5 U 5U 5U
2587 '0-SEP-87 5 U 5 U 5 U 5 U 5 U
2581 03-lWI-II 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5U 5 U '0 U
2581. '2-MY-II 5 U 5 U 5U 5 U 5 U 5 U 5 U 5 U 5U 5U '0 U
2581 16-AUG'1I 5 U 5U 5U 5 U 5 U 5 U 5 U 5 U 5U 5 U
2581 '0-IlOl/-88 5 U 5 U 5 U 5 U 5U 5 U 5U 5U 5U 5 U 10 U
WlU Oat. 2-lut- 2-Hex- 4-Methyi-2 Acetone 8eru- 8r-.:tlchi 8r_fol'l8 8rC8» C.rbon Cubon Tet Chi oro Chioro
llUiber 5811P'ed pentanone or-thlM _th- dlsuUlde trec:htortde banr- eth-
...... ....... ........... ............. ....p..... ........... ........... ........... ........... ............ ............ ............. ........... ..........
2274 03-IlOl/-90 '0 U '0 U 10 U tOu 5 U 5U 5U 10 U 5 U '00 5 U '0 U
2214 23-MY-91 10 U 10 U 10 U 10 u 5 U 5U 5 U 10 U 5U 34 5 U '0 U
2214 09-SE'-9' '0 U 10 U 10 U '0 U 5 U 5U 5 U 10 U 5u 91 5 U '0 U
2487 07-JUII-9O 10 U 10 U 10 U 1 JB 5U 5U 5 U 10 U 5U 5U 5 U 10 U
2581 10-5EP-87 61
2587 G3.MAII-II .'0 U 10 U 10 U '0 U 5U 5 U 5 U 10 U 5 U 110 5 U 10 U
2581 12-MY-88 10 U 10 U 10 U '0 U 5 U 5 U 5 U 10 U 5 U 160 5 U '0 U
10 U 10 U 10 U 5U 5U 5 U 10 U ' 5U 121 5U
2581 "-AUG-88 10 U '0 U
2587 10-1IOV-88 10 U 10 U 10 U 10 U 5U 5U 5 U 10 U 5 U 8J5 5U 10 U .
WlU Oat. Ch'orofol'll Chioro DlbrC8Odl' Ethy' Methy'''' Ityr- T.trach'or Tot.... Totat Trlch'oro Vlnyt . Vlny'
IkIIber 1811P' ed 8th- or_t...,. lenI... Ch'orlde oath- .y,,,, .th... Ac.tat. a.iorlde
....- .-- ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ......~...
2214 OJ'IIOV-9O 11 10 U 5U 5U 5U 5 U 22 5 U 5U 15 10 U 10 U
2214 23-M'-91 18 10 U 5U 5U 5U 5 U 12 5U 5U 10 '0 U 10 U
2214 09.11'.91 12 10 U 5 U 5 U 5U 5U 15 5 U 5U '3 10 U 10 U
2481 01-8-90 5U 10 U 5U 5 U 2 "I 5 U 5 U 5 U 5U 5U 10 U '0 U
2581 to-SE'-81 18 JZO 56
2581 OJ-MAIl-II 4 J . 10 U 5 U 5 U 5U 5 U 598 5 U 5 U 8J 10 U 10 U
2581 12-MY-88 5 U 10 U 5 U 5 U 5 U , U 680 5 U 5 U 115. 10 U '0 U
2587 16-AlJG-1I 5U 10 U 5 u 5U 5U 5U 451 5 U 5U 123 10 U 10 U
2581 10-1IOV-88 5 U 10 U 5 U 5 U 5 U 5 U 433 5U 5U 258 10 U '0 U
u.An8'yred but not detected ".pr..ent btiow detection ".It E.Estl..ted V.lue DoOituted S8llPi.
-------
P.g. No.
7
Ground Veter Vol.tll. Orgenlc ...ulta
hat trench.. Are. .
.eaulta reported In ugJl
Well Oat. 1,1,1.Trlch 1,1,2,2-Tetr 1,1,2-Trlch 1,1-Dlchlor 1,1-Dlchlor 1,2-Dlchlor 1,2-Dlchlor 1,2-Dlchlor cla-1,3-Dlch tr_-1,2-DI tr_-1,3-01 2-Chloroethyl
Nl8Ib8r ",Ied loroeth- echloreth- loroeth- oeth- oethene oeth- oethene opr0p8ne hloroprapene chloroeth- chloroprapene Vinyl Ether
..-- . --... ........... ............. .......... ........... ............ ........... ........... ........... ............ ............ ............. .............
0714 01-l1AY.87 4 U 4 U 4 U 4 U 4 U
0714 28-MY.87 4U 4 U 4 U 6. 4 U
0714 08-SEP-87 5 U 5U 5 U 5 U 5 U
2274 .SEP-86 5 U 5 U 5U 5 u 5 U 5 U 5 U '5 U 5U 5 U .10 U
2274 13-"-87 4U 4U 4 U 24 4 U
2274 01-DEC-89 5 U 5 U 5U 5U 5 U 5 U 2 .I 5 U 5U 5 U
2274 17-"-90 5 U 5 U 5U 5U 5 U 5 U 5 U 5 U 5 U 5 U
2274 21-.l1li-90 5 U 5 U 5U 5U 5U 5 U 2 .I 5 U 5U 5 U
2274 lO.SEP-9O 5 U 5 U 5U 5U 5 U 5 U 2.1 5 U 5U 5 U
Well Date 2-lut- 2-.e.- 4-Methyl-2 Acetone lenzene IronxU chi Ir_fol'1l Ir- Carbon Carbon T et Chi oro Chi oro
Nl8Ib8r 1..led pent- or_th- Mth- dlaulflde trechlorlde benzene eth-
....- ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
0714 07-MAY-87 4U
0714 28-MAY-87 4U
0714 08-5EP-87 150
2274 -UP-86 10 U 10 u 10 u 3 "I 5 U 5 U 5 U 10 U 5U Z3 5U 10 U
2274 13-"-87 64
2274 01-DEC-89 10 U 10 U 10 U 10 U 5 U 5U 5U 10 U 5U 5 U 5 U 10 U
2274 17-"-90 10 U 10 U 10 U 10 U 5 U 5 U 5U 10 U 5U 58 5 U 10 U
2274 21-.l1li-90 10 U 10 U 10 U 10 U 5 u 5U 5U 10 U ' 5U 32 5 U 10 U
2274 2O-SEP-9O 5 I" 10 U 10 U 3 1.1 5 U 5 U 5U 10 U 5U 120 5 U 10 U .
Well D.te UllorofOf'1l' Ulloro Dlbr~1 Ethyl Methylene Styrene Tetr8Chlor Toluene Total Trlchloro Vinyl Vinyl
lluleer ...Ied _th- or_thene lenz- Chloride oethene .,1.... ethene Acetete Chloride
-- --.. ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
0714 07-MAY-87 4U 4U 4U
0714 28-MAY-87 4U 16 4U
0714 08-.'-87 7 36 16
1274 _..'-86 5U 10 U 5U 5U ] .I 5 u 6 5U 5U 7 10 U 10 U
2274 1]-"-87 12 92 32
2274 01-DEC-1t 28 10 u 5u 5U 4.11 5U 19 5U 5 U 5 U 10 U 10 U
2274 17-"-90 14 10 U 5U 5 U 5 U 5 U 14 5U 5 U 13 10 U 10 U
2274 21-.l1li-90 15 10 U 5U 5U 2.18 5U 14 5U 5 U 9 10 U 10 U
2274 2O-SEP-9O 17 10 U 5U 5U 3 1.1 5U 22 $U 5 U 16 10 U ~ ..
u-An8lyzed but not detected "-Pr..ent bel.. detection 1I.lt E-Eatl..ted V.lue DaOl luted S..le
-------
PI81 110. 10
Ground Ulter Volltlle Or8enlc R..uit.
EI.t Trench.. Arel
.e.ult. reported In U8/l
Weu Dlte 1,1,1-Trlch 1,1,Z,Z-Tetr 1,1,Z-Trlch 1,1-Dlchlor 1,1-Dlchlor 1,Z-Dlchlor 1,Z-Dlchlor 1,Z-Dlchlor cl.-1,3-Dlch tr_-1,Z-DI tr_-1,3-DI 2-Chloroethyl
Ik8Ier ~led 'oroeth- Ichloreth- 'oroeth- 08th- oethene oeth- oethene apropllnl hlorapropene chloroethene chloropropene Vlnv' Ether
.- ....... ........... ............. .......... ........... ............ ........... ........... ........... ............ ............ ............. .............
Z787 ZJ-AUG-88 5 U 5U 5U 5 U 5 U 5 U 5 U 5 U 5U 5 U
2787 1NIOV-88 5 U 5U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5U 10 U
2787 10-MY-89 5 U 5 U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5 U
2787 21-AUG-89 5 U 5U 5 U 5 U 5 U 5 u 5 U 5 u 5U 5 U 5 U .10 U
2787 05-DEC~89 5U 5 U 5U 5 U 5U 5 U 5 u 5 u 5 U 5 U
2787 12-MAl-9O 5 U 5 U 5 U 5 U 5 u 5 U 5 U 5 u 5 U 5 u
2787 27-JUII-9O 5 U 5 U 5U 5 U 5 U 5 U 5 U 5 u 5 U 5 U
2887 14-MAl-88 5 U 5 U 5U 5 U 5U 5 U 5 U 5 U 5U 5 U 10 U
2887 12-MY-88 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 10 U
lieU Dlte 2-8utenone 2-"e.-- 4-Hethyl-Z Acetone lenzene Br~lchl Ir_fol'll Br- Clrbon Clrbon Tet Chloro Chloro
IIlIItIer IlIIIpl eel pentenone orC8eth- _th- dllUUlde trichloride benzene eth-
...... ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
2787 ZJ-AUG-88 10 U 10 U 10 U 10 U 5 U 5U 5 U 10 U 5U 8 5 u 10 U
Z787 17-1IOV-88 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U 7 5 u 10 U
2787 10-MY-89 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5U 15 5 u 10 U
2787 Z1-AUG-89 10 U 10 U 10 U 10 U 5 U 5U 5U 10 U 5U 14 5 U 10 U
Z787 05-DEC-89 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5U 17 5 U 10 U
2787 12-MAl-9O 10 U 10 U 10 U 10 U 5 U 5U 5U 10 U 5U 9 5 U 10 U
2787 27-_-90 10 U 10 U 10 U 10 U 5U 5 U 5U 10 U 5 U 12 5 U 10 U
14-MR-88 10 U 10 U 10 U 10 U 5 U 5 U 5U . 10 U ' 5 U 5 U 5 U 10 U
Z887
2887 12-MY-88 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5U 5 U 5 U 10 U .
Weu Dlte eII'orofol'll eII'oro Olbr~' Ethyl "ethy'ene Styrene ~etrech'or Toluene Totl' Trlchloro Vlnv' Vlnvl
lI""r ",'ed -th- or08th- 'enzene Chiorlde Nth.,. IIY'''' ethene Acetlte Ch'orlde
.-. ___a ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
Z787 a-AUG-88 5U 10 U 5U 5 U 5U 5U 44 5 U 5 U 5U 10 U 10 U
2787 . 17-1IOV-88 2... 10 U 5U 5U 3... 5U 16 3... 5U 5U 10 U 10 U
2787 10-MY-89 J.. 10U 5U 5U 5U 5U 31 5U 5 U 4.. 10 I.i 10 U
2787 21-AUG-1f 2.. 10U 5U 5 U 5U 5U 18 5U 5U 3.. 10 U 10 U
2787 05-DEC-1f 5 U 10 U 5U 5U 7 5U 5 U 5 U 5U 5 U 10 U 10 U
2787 12-MAl-9O 1 .. 10 U 5 U 5 U 7. 5U 10 5 U 5. U Z .. 10 U 10 U
2787 27-.MII-9O 2 .. 10 U 5U 5 U 3..1 5U 13 5 U 5 U 2 .. 10 U 10 U
2887 14-MR-88 27 10 U 5U 5 U 5U 5 U 4.. 5 U 5 U 5 U 10 U 10 U
2887 12-MY-88 5U 10 U 5 U 5U 5U 5 U 5 U 5 U 5U 5 U 10 U 10 U
U8An8'yzed but not detected ""r..ent beiow detection i 1.lt E-E.t I_ted V.lue 0-0 Huted SlIIIple
-------
'age 110. 9
Ground Watar Voiatlie Orlenle R..uit.
East Trench.. Arel
...ults reported In U8/1
Yell O.te 1.1.1.Trleh 1.1.Z.Z-Tetr 1.1.Z-Trlch 1.1.0Ichlor 1,1.0Ichlor 1,Z-Olchlor 1,Z.Olchlor 1,Z-Olchlor cls-1,S-Olch trIM-1,Z-OI trIM-1.S.01 Z-Chloroethyl
lI~r hllpt ed toroath- aehloreth- ior08th- oath.. D8thene 08th- 08thene opropln8 hloropropene ehlor08thene ehloropropene Vinyl Ethlr
..-.. ....... ........... ............. .......... ........... ............ ........... ........... ........... ............ ............ ........_a.. ............. .
2581 15-'EI-89 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5.U
2587 08-""-89 5 U 5 U 5 U 5U 5 U 5 U 5 U 5 U 5 U 5U
2587 l1-AUG-89 5 U 5 U. 5 U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5U 10 U
2581 01-'EI-9O 5 5U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U
2581 11-.'''-90 5 U 5U 5 U 5U 5 U 5 U 5 U 5U 5 U 5 U 10 U
2581 05-1IOV-9O 1Z U 1Z U 1Z U 12U 1Z U 12 U 44 12U 12 U 12 U .
2587 Q9-MAII-91 5 U 5 U 5 U 5U 5 U 5 U 11 5 U 5 U 5 U
2581 22-APtt-91 5 U 5 U 5 U 5U 5 U 5 U 14 5 U 5 U 5U
2581 10-.'-91 10 U 10 U 10 U 10 U 10 U 10 U 10 U 10 U 6 J 10 U
Yell Oltl z-autlnOftl Z-H8X1nOftI 4-Mltbyl-2 ACltone Benlene Br~Uchl BrC80fora BrOlllO Clrbon Clrbon Tet Chloro Chloro
lI~r S8IIIp1 ed pent- orOlleth- _th- disulfide trichloride benzene Ith-
...... ....... ........... ............. .......... ........... -=......... ........... ........... ............ ............ ...a......... ........... ..........
2581 15-'EI-89 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5U 180 5U 10 U
2581 08-M'-89 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5U 290 5 U 10 U
2587 17-AUG-89 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5U 110 5U 10 U
2581 01-'EI-9O 10 U 10 U '0 U 10 U 5 U 5 U 5 U 10 U 5U 5 U 5U '0 U
2581 11-.1UM-9O 10 U 10 U 10 U 2 JI 5U 5 U 5 u 10 U 5 U 66 5u 10 U
Z581 05-1IOV-9O 25U 25 U ~5 U 15 I" 12 U 12 U 12 U 25U 12 U 64 12 U 25U
2587 Q9-MAII-91 10 U 10 U '0 U 6 1.1 5 U 5 U 5U 10 U , 5 U 110 5U 10 U
25"'1 22-APtt-91 10 U 10 U '0 U 10 U 5 U 5 U 5 U 10 U 5 U 130 SU 10 U
2581 10-.P-91 20U 20U 20 U 20 U 10 U 10 U tau 20 U 10 U 10 u 10 u 20 u .
Yell Oltl Chlorofol'll Chloro Dlbr08lCbI Ethyl Methylene Styrene TetrlCblor Toluene Totll Trlchloro Vinyl Vinyl
ttumer lallpled _thene orOMthene IlnIene Chloride 08thene lCyl... ethene Acetlte Chloride
-- .-.... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
2587 1'-fEI-" 'U 10 U 5 U SU SU 5 U 360 SU 'U 110 '0 U '0 U
2587 08-.'-" 5.. '0 U 5U 5U 5U 5 U 840 5U 5U 120 10 U '0 U
2587 17-AUG-" J .I 10 U 5U 5U Su 5 U 330 , U SU 9Z 10 u 10 U
2587 . 01.'EI-9O '5 U '0 U 5U 'U 61 5U 2.. , u 5U 4.11 tau 10 U
2587 11-""-90 2.. '0 U 5 U SU 5 U 5U 340 5 U 5U 54 10 U 10 U
2587 05 -1IOV.9O '0 .I Z5u 12 U 1ZU 14 1 12 U 280 12 U 12 U 48 Z5u Z5u
2587 Q9-MII-91 J .I 10 U , u 5U 3.1 5 U 330 D 5 U 5u 63 '0 U 10 U
2587 22-APi-91 5U 10 U 5 U 5U 5 U 5 U 330 0 5 U 5U 61 10 U 10 U
2587 10-IEP-91 '0 U 20 U 10 U 10 U 5 I" 10 U 280 10 u 10 U n 20U 20U
u-AMI)'led but not detected J-Pr..ent bet 011 detection 1I.lt E-E8tl..ted V.lue DeDlluted S88ptl
-------
"g. 110. 12
Ground Weter vot.tlt. organic ...utte
II.t Trench.. Are.
le.ult. reported In ug/I
.,." D.t. 1.1.1-Trlch 1.1.Z.Z.Tetr 1,1,Z-Trlch 1,1-0lchlor 1,1-Dlchlor 1,Z-Olchlor 1,Z-Dlchlor 1,Z-Dlchlor cl.-1,3-DId1 tr_-1,Z-DI tr_-1,3-DI Z-Chlor08thyl
IIUIIb8r lallpled loroeth- echloreth- loroeth- oeth- oethene 08th- oethIN opr0p8n8 hloropropene chtoroethene chloroprapene Vinyl Ither
....- ........ .......-. ............. .......... ........... ............ ........... ........... ........... ............ ............ ............. .............
2887 28-1IOV-90 5 U 5U 5U 5U 5 U 5 U 5 U 5 U 5u 5 U
2887 15-.1.-91 5 U 5 U 5 U 5 U 5U 5 U 5 U 5U 5 U 5 U
Z887 16-APl-91 5U 5 U 5 U 5 U 5U 5 U 5U 5U 5U 5 U
2887 O4-IEP-91 5U 5 U 5 U 5 U 5U 5 U 5U 5U 5 U 5 U
3187 10-MAl-88 5 U 5 U 5U 5 U 5U 5 U 5 U 5U 5 U 5 U 10 U
3187 12-""-88 5 U 5U 5U 5 U 5 U 5U 5U 5 U 5 U 5 U 10 U
3187 25-.-88 5 U 5 U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5 U
3187 22-1IOV-88 5 U 5U 5 U 5 U 5 U 5 U 5U 5U 5 U 5U 10 U
3187 22-'11-89 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5U 5 U
we" D.te Z-tut.... Z-Ne..... 4-Methyl-Z Acetone lenzene IrCl80dlchl IrOllOfonl 8rOllO Clrbon C.rbon Tet Chloro Chloro
IIUIIb8r SlIIPled pent.... orC81th- 8th.. dl.uUlde trIChtorlde benzene eth..
...... ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
2887 28-NOV-90 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5U 5U 5 U 10 U
Z887 15-"AN-91 10 U 10 U 10 U 28 I 5 U 5 U 5 U 10 U 5 U 5 U 5U 10 U
2887 16-API-91 10 U 10 U 10 U 10 U 5 U 5 U 5U 10 U 5 U. 5 U 5U 10 U
2887 Q4-SEP-" 10 U tOu 10 U '0 U 5 U 5 U 5 U 10 U 5U 5U 5U 10 U
3187 10-MAl-88 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U 5 U 5U 10 U
3187 1Z-IIA'-88 10 U 10 U 10 U 10 5 U 5U. 5U 10 U 5U 5 U 5U 10 U
3187 25-A\JG-88 10 U 10 U 10 U 10 U 5 U 5U 5U 10 U 5 U 5 U 5U 10 U
'0 U 10 U 10 U 10 U 5U 5U 5 U 10 U ' 5U 5U 5 U
3187 22-1IOV-88 10 U
3187 22-'11-89 10 U '0 U 10 U 10 U 5U 5U 5U 10 U 5U 5 U 5U 10 U .
welt Olte Chlorofonl . Chloro DlbrOllOChI Ethyl Methylene Styr- 'etrachlor To 1- Tot. I 'rlchtoro Vinyl Vinyl
IIuIbIr IlIIPled 8th- orC81th- 1enI- Chloride oeth- Kyl... eth- Acetlte Chloride
.--. ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
2887 28-1IOV-90 5 U 10 U 5U 5U 5U 5 U 5U 5U 5 U 5U 10 U '0 U
2887 1S-.IAII-91 5 U 10 U 5U 5U 5U 5 U 5U 5U 5 U 5U 10 U 10 U
2887 16-APl-91 5U 10 U 5U 5U 5U 5U 5U 5U 5 U 5 U 10 U 10 U
2887 04-IIP-91 5 U 10 U 5U 5U 5U 5 U 5 U 5 U 5U 5 U 10 U 10 U
3187 10-MAl-88 5 U 10 U 5U 5U 5 U 5U 5 U 5 U 5U 5 U 10 U 10 U
3187 1Z-IIA'-88 5U 10 U 5U 5U 5 U 5U 5 U 5 U 5 U 5 U 10 U 10 U
3187 25-AlJG-88 5U 10 U 5U 5U 5 U 5 U 5 U 5U 5 U 5 U 10 U 10 U
3187 2Z-IIOV-88 2 "1 10 U 5U 5U 4 "1 5 U 5 U 3 "1 5 U 5 U 10 U to U
3187 ZZ-'£1-89 5U 10 U 5 U 5U 5U 5 U 5 U 5. U 5 U 5U 10 U 10 U
U-AnIiyzed but not detected ...pr..ent beiOM detection tI.lt EaE.tl..ted Vltue D-D"uted S.-pte
-------
P8118 No. 11
Ground Water Volatile Orllanlc aelultl
Ea.t Trenchel Area
aelulta reported In UII/I
Welt Date 1,1,1-Trlch 1,1,2,2-Tetr 1,1,2-Trlch 1,1-Dlchlor 1,1-Dlchlor 1,2-Dlchlor 1,2-Dlchlor 1,2-Dlchlor cla-1,3-Dlch tr_-1,2-DI tr_-1,3-DI 2-thloroethyl
llulbar Sallpl ed . 10r08th- achloreth- 'or08th- 08th- oeth- oethane oeth- apropane hloropropene' chloroeth- ch'orapropene Vlny' Ether
...... ....... ........... ............. .......... ........... ............ ........... ........... ........... ............ ............ ............. .............
2887 22-AUQ-88 5 U 5U 5 U 5 U 5 U 5 U 5U 5U 5 U 5U
2887 "-NOV-88 5 U 5U 5U 5 U 5 U 5 U 5 U 5U 5 U 5U 10 U
2887 2O-'EI-89 5 U 5 U 5U 5 U 5 U 5 U 5U 5U 5 u 5U
2887 08-.'-89 5 u 5U 5U 5 U 5 U 5 u 5U 5 U 5 U 5U
2887 21-AUQ-89 5 U 5 U 5U 5 U 5 u 5 U 5 U 5 U 5 U 5 U 5U 10 U
~887 06-DEC-89 5 U 5 U 5U 5 U 5 u Su 5 u 5 u 5 u 5 u
2887 14-MII-9O 5 u 5 U SU 5 u 5 U 5 U 5 u 5 U 5 u 5 U
2887 26-JUN-9O 5 U 5 U 5U 5 U 5 U SU 5 U SU 5 U SU
2887 19-IE'-9O 5 U SU 5 U 5 U 5 u 5 u 5 u 5 U 5 U SU
WIlt Date 2-8utanone 2-HeJlan0n8 4-Mathyl-2 Acetone lenz- IrOlllOdlchi IrOllOfoMl Ir- Carbon Carbon Tet Chloro Chi oro
Nl8Iber IIIIpI ed pant8nOM or_thane _thane dllutflde trachlorlde benz- eth-
...... ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
2887 22-AUG-88 10 U 10 U 10 U 1DU 5 u 5 u 5 U 10 U 5 U 5U 5 U 1D U
2887. "-NOV-88 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U SU 5U 10 U
2887 20-'£1-89 .10 U 10 U 10 U 10 U 5 U 5 u 5 U 10 U 5 U 5 U 5 U 10 U
2887 08-.'-89 10 U 10 U 10 U 10 U 5 U 5 u SU 10 U SU 5 U SU 10 U
2887 21-AUQ-89 10 U 10 U 10 U 10 U 5 U 5 U SU 10 U SU 5 U SU 10 U
2887 06-DEC-89 10 U 10 U 10 U 27 I 5 U 5 U 5 u 10 U SU su 5 U 10 U
2887 14-MR-9O 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U su 5 U 10 U
26-JUN-9O 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U ' 5U 5 U 5U 10 U.
2887
2887 19-51'-90 81J 10 U 9 IJ 71J 5 U 5 U 5 U 10 U 12 5 U su 10 U .
Welt Date Ch'orofoMl .Ch'oro Dlbr-hi Ethyl "ethyl- Ityr- Tetrach'or Toluene Tota' Tr I chi oro Vlny' Vinyl
Nl8Iber IIIIpI ed _t~ or_th- 88111- Ch'orlde 08th- .yl... eth- Acetate Ch'orlde
-..- ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
2887 22-AUQ-88 5U 10 U 5 U 5U 5 U 5 U SU 5U 5 U 5U 10 U 10 U
2887 16-NOV-88 J JI 10 U 5U 5 U 4..1 SU SU 5U 5 U 5 U 10 U 10 U
2887 20-nl-89 5U 10 U 5 U 5U 5 U 5U 5 U 5 U 5U 5 U 10 U 10 U
2887 08-.'-89 SU 10 U 5 U 5U SU SU 5 U SU SU 5 U 10 U 10 U
2817 21-AUQ-89 5U 10 U SU SU su 5U 5U 5U 5U 5U 10u 10 U
2887 06-D£C-89 5U 10 U su 5U 7 5 U 5 U 5U 5 U SU 10 U 10 U
2887 14-1W1-9O SU 10 U .5 U SU 5 U 5U 5 U 5 U 5 U Su 10 U 10 U
2887 Z6-JUN-9O. SU 10 U 5 U SU 3 JI SU 5 U 5 U 5 U su 10 U 10 U
2887 19-51'-90 SU 10 U 5U su 81 5 U 5U 10 I 5U 5 U 10 U 1~ U
UaAn8lyzed but not detected Ja'r..ant be'ow detection ".It EaEltl..ted Va'ue DoGl luted SIIIp'e
-------
Pige No. 14
Ground Wlter Volatile Organic Resultl
EI.t Trenches Area
Re.ult. reported In UtIli
E
WItt Dlte 1,1,1-Trlch 1,1,2,2-Tetr 1,1,2-Trlch 1,1-Dlchlor 1,1-Dlchlor 1,2-Dlchlor 1,2-Dlchlor 1,2-Dlchlor cl.-1,3-Dlch tr_-1,2-DI tr_-1,~ 2-Chloroethyl
NUlDer I8Ipled 'oroath- achlorath8"8 'oroath8"8 oethane oath- oeth- oeth- opropene h'oroprapene ch'oroeth- ch'oropr Vlny' Ether
....- ...a... ........... ............. .......... ........... ............ ........... ........... ........... ............ ............ ............. .............
3287 09-MM.88 5 U 5U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5U 10 U
J287 12-11A'.88 5 U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5U 5U 10 U
J287 2J-MJG-88 5U 5U 5 U 5 U 5 U 5 U 5 U 5U 5U 5 U
J287 17-11OY-88 5U 5 U 5U 5 U 5U 5 U 5 U 5 U 5U 5U .10 U
J287 22-FEI-89 5 U 5 U 5U 5 U 5 U 5 U 5 U 5 U 5U 5U
J287 12-DEC-89 5 U 5 U 5U 5 U 5 U 5 U 5 U 5 U 5U 5U
3287 21-FEI-9O 5 U 5 U 5U 5 U 5 U 5 U 5 U 5 U 5U 5 U
J287' 22-M.9O 5 U 5 U 5U 5 U 5 U 5 U 5 U 5 U 5U 5 U
J287 19-UP-9O 5 U 5U 5U 5U 5 U 5 U 1 J 5 U 5U 5U
WItt Dlte 2-lutan0n8 2.HeJlan0n8 4-Methy'-2 Acetone Benz- Br08ldlchi BrC80fol'll BrC80 Clrbon Cerbon Tet Chi oro Chloro
NUlDer I8Ipled pentan0n8 or_th- .th8"8 dl.uUlde trachlorlde benz- '. eth8"8
..-- ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... .~........
3287 09-MM-88 10 U 10 U J5' 10 U 5U 5 U 5U 10 U 5U 5U 5 U 10 U
J287 12-M'-88 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U 5U 5 U 10 U
3287 2J-MJG-88 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U 5 U 5 U 10 U
J287 17-NQV-88 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5U 5U 5 U 10 U
J287 22-FEI-. 10 U 10 U 10 U 10 U 5 U 5 U 5U 10 U 5U 5U 5 U 10 U
3287 12-DEC-. 10 U 10 U 1,0 U 8 J 5 U 5U 5 U 10 U 5U 5U 5 U 10 U
3287 21-FEI-9O 10 U 10 U 10 U 10 U 5U 5 U 5U 10 U 5 U 5U 5 U 10 U
3287 22-M-9O 10 U 10 U 10 U 10 U 5 U 5 U 5U 10 U " 5U 4 J 5 U 10 U
3287 19-.'-90 10 1 10 U 1 J 121 5U 5 U 5U 10 U 5U 20 5U 10 U .
WItt Dete Ch'orofOMl Ch'oro DlbrC8OCh' Ethy' Methy'- Ityr- T.tr8eh'or To'.... Totel Trlchloro VI ny, Vlny'
MUlDer I8Ipled .th- orC81th8"8 hnI- Ch'orlde oathene Iy'''' .th- Ac.tate Chloride
-. ..-. -...--. ..-.--.- -... __._a... .....-.... ......- ........... ............ ............ ............. ......................
3287 09-MM-. 5U 10 U 5U 5U 5U 5U 5U 5U 5U 44 10 U 10 u
3217 12-M'-88 5U 10 U 5U 5 U 5U !J U 20 5U !JU 5U 10 U 10 U
J2I7 2J-MJG-. 5U 10 U 5U 5U 5U 5U 5U 5U 5U 5 U 10 U 10 U
3287 17-1OV-88 Z JI 10 U 5U 5U 3 JI 5U 5U 5U 5U 5U 10 U 10 U
3287 22-FEI-. !JU 10 U 5U 5U 5U 5U 5U 5U 5U 5 U 10 U 10 U
3287 12-DEC-. 5U 10 U 5U J J 5U 5 U 5U 5 U 5 U 5 U 10 U 10 U
J287 21-FII-9O 5U 10 U 5 U 5 U 2 JI 5 U 5 U 5U 5 U 5 U 10 U 10 U
J287 22-JuiI-90 5U 10 U 5 U 5U 5U 5 U J J 5U 5U 5 U 10 U 10 U
3287 19-UP-9O 2 J 10 U 5 U 5 U 12 1 5 U 261 5U , U 7 10 U 10 U
U-Aiwlyzed but not detected J-Prnent below detection 1I.1t E-E.tl..ted Value DoG Huted SIIIIp'e
-------
Pa8e 110. tJ
Ground Water Volatile Or8enlc Results
Eest Trench.. Aree
Result. reported In UII/l
wen Data l,l,l-Trlch l,l,Z,2-Tatr l,l,2-Trlch l,l-Dlchlor l,l-Dlchlor l,2-Dlchlor l,Z-Dlchlor l,Z-Dlchlor cls-l,S-Dlch tr8nl-l,2-DI tr...-l,3-D I Z-Chloroethyl
IIUliler IlIIIpl ed loroeth- ec:hlorathlM loroeth- oeth.. oethene oethene oethene opropene hloropropene chl!lroethene chloropropene Vinyl Ether
...- ___a _a........ ............. .....~.... ........... ............ ........... ........... ............ ............ ............ ............. .............
S187 10-MAY-89 5U 5 U SU 5 u 5 u 5 U 5 U 5 U 5 u ,5 U
S187 '''-DEC~89 5U 5 U 5U 5U 5 U 5 u 5 u 5 U 5 U 5 U
S187 l]-1N-9O su 5 u SU su 5 U 5 U 5 U 5 U 5 U 5 U
]187 27-""-90 5U 5 U SU 5 U 5 U 5 U 5 U 5 U 5 U 5 U
]187 18-SEP-9O 5U 5 U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5 U
3187 Z1-1IOV-9O 5U 5 U 5U 5U 5 u 5 U 5 U 5 U 5 u 5 u
3187 11--'AII-91 5U 5u 5U 5U 5 U 5 U 5u 5 u 5 U 5 u
]187 16-APl-91 5U 5 U 5U 5U 5 U 5 U 5U 5 U 5 U 5 U
]187 10-SEP-91 5U 5 U 5U 5U 5 U 5 U 5U 5U 5.00 U 5U
wen Date 2-lut- 2-Ha.- "-Methyl-Z Acetone 8enz- 8rOlllOdIchl Ir_fo1'8 Br- Carbon Cerbon Tet Chloro Chloro
.Uliler SlIIIpled pentlnOn8 orC8thene -thene dl.ulflde trec:hlorlde benzene athene
...... ....... ~.......... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
3187 10-MAY-89 10 U 10 U 10 U 10 u 5 U 5 U 5 U 10 U 5 U 5 u 5 U 10 u
3187 "-DEC-89 '10 U 10 U 10 U 118 5 U 5 U 5 u 10 U 5 U 5 U 5 u 10 u
]'87 1]-1WI-9O '0 U 10U '0 U 10 U 5 U 5 U 5 U '0 U 5 U 5 U 5U 10 U
]187 27-"'-90 10 U 10 U '0 U 5 JI 5U 5 U 5U 10 U 5 u 5U 5 U '0 U
]'87 18-SEP-90 5 IJ 10 U 10 U 58J 5 U 5 U 5U 10 U 5 u 5 U 5 U 10U
3187 21-1IOV-90 7... 10U lOU 10 U 5 U 5 u SU 10 U 5 u 5 U SU lOU
]187 11-JAII-91 10 U 10 U lOU " IJ 5 U 5 U 5 U 10 U 5 U 5 U 5U 10 U
]187 16-APl-91 10 U 10 U 10 U 10 U 5 U 5U 5U 10 U ' 5 U 5U 5U 10U
]187' 1O-IIP-91 10 U 10 U 10 U 10U 5 U 5 U 5 U 10 U 5U 5U 5U 10 U '
wen Data Chlorofo... Chloro Dlbr~hl Ethyl Methylene Ityr- Tatrec:hlor Tolu.w Total Trlchloro Vinyl Vinyl
.Uliler 1IIIIp1 ed .thIM orOMthlM 1Inz- Chloride oethene .y1..... ath- Acetata Chloride
.- -..- ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
]187 10-MY-89 5U 10 U 5U 5U 5U 5 U SU SU 5U 5U 10 U 10 U
5187 14-DEC-89 SU 10 U SU 5U 5U 5U SU 5U 5U SU 10 U 10 U
5187 1]-IWI-90 5U 10 U 5U 5U SU 5 U 5 U 5U 5U 5U lOu 10 U
]187 27-"'-90 5 U 10 U 5 U 5 U 5 U su 5U 5U 5U su 10 U 10 U
3'87 18-11'-90 5 U 10 U SU 5U 1 J 5 U 5U 5 U 5 U 5 U 10 U 10 U
]187 Z1-1IOV-90 5 U 10 U 5" 5U SU 5U 5 U 1 J 5 U 5 U .10 U 10 U
]187 11-JAII-91 5 U 10 U 5U 5 U 5 U 5U 5 U 5 U 5U 5 U 10 U 10 U
3187 16-APl-91 5U 10 U 5U 5 U 5 U 5U 5U 5 U 5 U 5 U 10 U 10 U
3187 10-IEP-91 5U 10 U 5 u 5 U 1 J Su 5U su Su 5 u 10 U 10 U
U-Anal yzed but not detected J.Pr..ent below detection lI.lt E-E8tl.t8d Value D-DI,uted S-.ple
-------
pege 110. 16
Ground Wlter Voletlle Orgenlc .esult.
Ee.t Trench.. Area
...uUa reported In UIIll
wen Date '.'.1-Trlch 1.1,Z,Z-T.tr '.'.Z-Trlch 1,1-0lchlor 1,1-0lchlor 1,Z-Olchlor 1,Z-Olchlor 1,Z-Olchlor cl.-1,3-0Ic~ tr_-1,Z-OI tr_-1,3-01 Z-Chloroethyl
lI...r S8IIP1 eel loroath... achloreth.. toroath... oath..... oethene oethane oethene opropllle hloropropene chloroethene chloropropene Vinyl E~her
...... ....... ........... ............. .......... ........... ............ ........... ........... ........... ............ ............ ............. .............
3487 Z8-SEP-88 5 u su 5 u 5 u 5 u 5 u 5 u 5U 5 u 5 U 10 U
3487 16-1IOV-88 5 U 5 U 5 U 5 U 5 U 5 u su 5 u 5 U 5 u 10 u
3487 ZO.fEl-89 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5U 5 u
3487 10-MAY-89 5 U 5U SU 5 u 5 u 5 U 5 U 5U 5U 5 U
3481 Z3-AUQ-89 5 U 5 u 5 U 5 U 5 u 5 U 5U 5U 5 U 5 U 5U 10 U
3481 13-0EC-89 5 U 5 u 5U 5 U 5 u 5 U 5u 5 U 5 U 5U
3487 Z1-W-9O 5 u 5 U SU 5 U 5 U 5 U 5 U 5 U 5 U SU
3487 26-.KJI-9O 5U 5 U 5U 5 U 5 U 5 U 5 U 5U 5U 5U
3481 18-SEP-9O 5 u 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5U
wen Date Z-Butenone Z-Hexenone 4-Methyl-Z Acetone lenzene 8rOMdIchl 8r-fol1l 8r- Clrbon Clrbon Tet Chloro Chloro
lI...r S8llPied pentenone or~thane .thane dl.utfld8 trachlortd8 benzene eth-
...... ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
3481 Z8-SEP-88 10 U 10 U 10 U 10 U 5U 5 U 5U 10 U 5 U 5 U 5 U 10 U
3481 16-1IOV-88 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5U SU su 10 u
3481 20-FEI-89 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5U 5U 5U 10 U
3481 10-MAY-89 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U 5U 5 U 10 U
3481 Z)-AUG-89 10 U 10 U 10 U 10 U SU 5 U 5 U 10 U 5 U 5 U 5 U 10 U
3487 13-0EC-89 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U SU 5U 10 U
3487 21-W-9O 10 U 10 U 10 U 4 J 5 U 5 U 5 U 10 U 5U 5 U 5 U 10 U
3487 26-M-9O 10 U 10 U 10 U 10 U 5 U 5 U 5U .,0 U ' 5U 5U 5U 10 U
3481 18-IEP-9O 3 IJ 10 U 10 U 10 I 5U 5 U 5 U 10 U 5 U 7 5 U 10 U .
weu Date Chlorofol1l Chloro Olbr~'" Ethyl "ethyl- styrene Tetrachlor Tol.... Total Trtchloro Vinyl Vinyl
llUiMr 18llPied .th... orCl8lth.. lenaene ctllorld8 oathene Xylenea ethene Acetate ctllorld8
...-. --.. ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
3487 28-.'-81 SU 10 U 5U 5U SU 5 U SU 5 U SU 5 U 10 U 10 U
3487 16-1IOV-8I 2 JI 10 U 5U 5U ] JI 5 U SU 5 JI 5U 5U 10 U 10 U
3487 lO-FEI-89 5 U 10 U 5U SU 5 U 5 U 5 U 5 U 5 U 5U 10 U 10 U
3487 10-MAY-89 SU 10 U 5U 5 U SU 5 U SU 5 U 5 U 10 10 U 10 U
3487 D-AUG-" 5U 10 U 5U SU 5U su 5 U SU 5 U 1 J 10 U 10 U
3487 13-0EC-" 5 U 10 U 5U 5 U 8 SU SU 5U SU Su 10 U 10 U
3487 21-1WI-9O 5 U 10 U SU 5 U 3 JI 5 U 5 U 5 U 5 U Z J 10 U 10 U
3487 26- .KJI-90 5 U 10 U 50 SU 3 JI 5 U SU 5 U 5 U 5U 10 U 10 U
3487 18-.'-90 5 U 10 U 5U 5 U 6 I 5 U 4 IJ 5 U 5 U 1 J 10 U 10 U
U-An8tYZed but not d8tectecl J-Pr.....t .10lIl detect 'an ".1 t E-E.tt_ted Value O-Dllutecl S.-ple
-------
PI" 110. 15
Ground Wlter Vol It lie Organic ."Ult.
E..t Trench.. Arel
...ult. reported In U8/1
wen Dete 1,1,1-Trlch 1,1,2,2-Tetr 1,1,2-Trlch 1,1-Dlchlor 1,1-0Ichlor 1.2-0Ichlor 1,2-0Ichlor 1,2-0Ichlor cl.-1,3-0Ich tr_-1,2-01 tr_-1,3-01 2-Chlor08thy'
lIum.r S~'ed 'or08thane lCh'orethane tor08thane 08thene 08thene oethene 08thene opropene hioropropene chtoroethene chtoropropene Vlny' Ether
...- ....... ........... ............. .......... ........... ............ ........... ........... ........... ............ ............ ............. .............
3287 Z9-1QV.9O 5 U 5U 5U 5 U 5 U 5 U 5 U 5U 5 U 5U
3287 15-.'AI-91 5 U 5U 5 U 5U 5 U 5 U 5U 5 U 5 U 5 U
3287 16-APII-91 5U 5 U 5U 5 U 5 U 5U 5U 5 U 5 U 5U
3287 0)-SE'-91 5U 5 U 5 U 5 U 5 U 5U 5U 5 U 5U 5U
3387 26-'/111'90 5 U 5 U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5U
3387 05-SE"91 5 U 5U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5 U
3487 09-/CAA -88 5 U 5 U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5u 10 U
3487 1Z-NAY-88 5 U 5U 5U 5 U 5U 5 U 5 U 5 U 5U 5U 10 U
3487 24-MJG-88 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5U
wen Oete 2-lutlnOM 2-Hexen0n8 4-Methyl-2 Acetone lenz- IrC80dlcht Ir_fol'8. Ir- Clrbon Carbon Tet Chi oro Ch'oro
llllllber S~'ed pentanone or_thane _thene dl.ulflde trlchtorlde benzene ethene
...... ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
3287 29-/lOV-9O 10 U 10 U 10 U 10 U 5U 5 U 5 U 10 U 5 U 5 5 U 10 U
3287 15''/AII-91 10 U 10 U 10 U 10 U 5 U 5U 5 U 10 U 5 U 8 5 U 10 U
3287 16-".'91 10 U 10 U 10 U 10 U 5 U 5 U 5U 10 U 5U 2,/ 5 U 10 U
3287 03'SEp.91 10 U 10 U 10 U 10 U 6 5U 5U 10 U 5 U 5 U 9 10 U
3387 26-,/111-90 10 U 10 U 10 U 10 U 5 U 5U 5U 10 U 5U 42 5 U 10 U
3387 05-SEP-91 10 U 10 U 10 U 10 U 5 U 5U 5U 10 U 5U 58 5U 10 U
3487 O9-JWt-88 10 U 10 U 10 U 10 U 5U 5 u 5U 10 U 5U 5 U 5U 10 U
3487 12-NAY'88 10 U 10 U 10 U 10 U 5 U 5 U 5U 10 U ' 5U 5U 5U
10 U
3487 24-MJG-88 10 U 10 U 10 U 10 U 5U 5 U 5 U 10 U 5U 5U 5U 10 U .
Yln Dlte Chtorofo1'8 Ch'oro Dlbr08DchI Ethy' Methyl- Styr- TetrlCh'or To'uene Totl' Trlch'oro Vlny' Vinyl
IIuIIIer I81pted _thane or_th8n8 lena8M Ch 'or Ide 08thane Ky'''' eth- Acet.te Ch'orlde
-- ..-..- ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
3287 Z9-1QV-9O 1 J 10 U 5U 5U 5U 5 U 11 1,/ 5U 5 J 10 U 10 U
3287 15-JAII-91 1 J 10 U 5U 5 U Z ,/ 5 u 20 5 U 5U 3 ,/ 10 U 10 U
5287 16-API(-9' 1 J 10 U 5 U 5U 5u 5 U 7 5 U 5U 5 U 10 U 10 U
3287 05-1('-91 5U 10 U 5 U 5 U 5U 5 U 1 .. 8 5U 7 '0 U 10 U
5387 26.....90 19 10 U 5 U 5U 5U 5 U 17 5 U 5U 6 10 U 10 U
5387 05-1('-9' 5 10 U 5 U 5U 5U 5 U 21 5 U 5U 9 10 U 10 U
5417 O9-/CAA-ee 5U 10 U 5 U 5U 5 U 5 U 5U 5 U 5U J ,/ 10 U 10 U
3487 1Z'NAY-88 5U 10 U 5 U 5 U 5U 5 U 5U 5 U 5U 5 U . '0 U 10 U
3487 24'AUG.88 5 U 10 U 5 U 5 U 5 U 5 U 5 U 5 U 5U 5 U 10 U 10 U
U8Anet yzed but not detected ,/.pre.ent be'ow detection 1I.lt Ea£lt I_ted Vetue 08DI'uted s~te
-------
".e 110. 18
Ground Water Votatlte Organic ...utt.
Ealt Trench.. Area
...utt. reported In ug/t
WeH Date 1,1,1-Trlch 1,1,Z,Z-Tetr 1,1,Z-Trlch 1,1-Dlchtor 1,1-Dlchtor 1,Z-Dlchtor 1,Z-Dlchtor 1,Z-DlcMor cl.-1,3-Dlch tr_-1,2-DI tr_-1,3-DI Z-CMoroethyt
IIUlllber I811pt ed toroeth- acMoreth- toroethane oeth- oethane oeth- oethane. opropane . Moropropene chtoroethane chtoropropene Vlnyt Ether
. ...-. ....... -......... ............. .......... ........... ............ ........... ........... ........... ............ ............ ............. .............
3681 08-MY-89 5 U 5U 5 U 5U 22 J 5 U 5U 5 U 5U 5 U
3681 11-I£P-89 200 5U 5U 6 150 Z J 5 U 5 U 5U 5 U 5 U 10 U
3681 10-1IOV-89 2500 U Z500 U 2500 U 2500 U 2500 U 2500 U 2500 U 2500 U 2500 U 2500 U
3681 05-MR-9O 1000 U 1000 U 1000 U 1000 U 1000 U 1000 U 1000 U 1000 U 1000 U 1000 U
3681 05 - .1U11-9O 130 5U 5U 3 J 67 5 U 42 5 U 5U 5U
3681 29-MIt ~5oo U 2500 U 2500 U 2500 U 2500 U 2500 U Z500 U 2500 U 2500 U 2500 U
3681 12-IIOV-W 1000 U 1000 U 1000 U 1000 U 1000 U 1000 U 1000 U 1000 U 1000 U 1000 U
3681 08-MR-91 140 5 U 5 4 J 63 2 J 60 5 U 5U 5 U
3687 19-APR-91 250U 250U 250U 250 U 250 U 250 U 250 U 250 U 250 U 250U
weH Date 2-lut- 2-lIall- 4-Methyl-2 Acetone 18N- 8rC8ldldll Ir_fol'll Ir- Carbon Carbon Tet CMoro Chloro
IIUlllber IlIIIPted. pent- or_th- _th- dl.utlld8 trachtorld8 benzene eth-
...... ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
3687 08-MAY-89 10 u 10 U 10 U 10 U 5U 5U 5 U 10 U 5 U 610 5U 10 U
3687 11-I£P-89 9 J 8 J 10 U 190 1 J 5 U 5 U 10 U 5 U 550 5 U 10 U
3687 10-!IOV-89 5000 U 5000 U 5000 U 5000 U 2500 U 2500 U 2500 U 5000 U 2500 U 2500 U 2500 U 5000 U
3687 05-MR-9O 2000 U . ZOOO U 2000 U 160 JB 1000 U 1000 U 1000 U 2000U 1000 U 410 J 1000 U 2000 U
3687 05-JUII-9O 10 U 10 U 8 J 16 I 5U 5U 5 U 10 U 5 U 170 5 U 10 U
3687 29-AUQ-9O 5000 U 5000 U 5000 U 4100 BJ 2500 U 2500 U 2500 U 5000 U 2500 U 940J 2500 U 5000 U
3687 1Z-IIOV-9O ZOOO U 2000 U 2000 U 2000 U 1000 U 1000 U 1000 U ZOOO U 1000 U 470 J 1000 U Zooo U
08-IWl-91 10 U 10 U 10 31 I 5U 1 J 5 U 10 U ' 5 U 170D 5U
3681 10 U
3681 19-APR-91 500 U 500 U 500 U 500 U Z50U Z50U Z50U 500 U Z50U 100 250U 500 U.
WeH Date I:htorofOl'll -*toro Dlbr_M Ethyt Methyt- Styr- Tetrachtor Totuene Totat Trlchtoro Vlnyt Vlnyt
IIUlllber I811pt ed _th- or_th- IlII&ane :.Id8 oeth8n8 Iytenea eth- Acetate -*torl.d8
...... __a... ........... ............. .......... ........... .~...... ........... ........... .....~...... ............ ............. ........... ..........
3681 OI-MY-89 290E 10 U 5U 5 U 5U 5U 350£ 2 J 5 U 12000 10 U 10 U
3687 11-IIP-89 1300 11"1 U 5 U 5U 19 5 U 5ZO 13 5 U 110000 .10 U 10 U
3687 10-1IOV-89 Z500 U 5000 U 2500 U 2500 U 2500 U 2500 U 2500 U 2500 U Z500 U 18000 5000 U 5000 U
3681 05-1Wl-9O 610J zooo U 1000 U 1000 U 1600 . 1000 U 490 J 1000 U 1000 U 47000 I ZOOO U 2000 U
3681 05- .1U11-9O 850 10 U 5U 5 U "I 5U 610 5 5 U 57000 10 U 10 U
3687 29-AUQ-9O 1100 J 5000 U 2500 U. 2500 U 1400 IJ 2500 U 1100 .. 2500 U 2500 U 96000 5000 U 5000 U
3681 12-1IOV-9O 540 J 2000 U 1000 U '000 U 1600 1 1000 U 440.. 1000 U 1000 U 39000 ZOOO U 2000 U
3681 08-MAl-91 930 D 10 U 5 U 5 U 14 1 5U 610 D 10 I 5 U 45000 DE 10 U 10 U
3687 "-APR-91 350 500 U 250 U Z50U Z50U 250 U 470 250U Z50U 38000 D 500 U Soo U
U.An8IYled but not d8tected J.pr..ent be I 011 d8tectlon 1IIIIt E-E.tl..ted Vatu. D-DHuted SlIIIPte
-------
P8I1 110. 17
Ground W.ter Vol.tll. Orlenle ...ult.
E.st Trench.s Are.
...utt. reported tn ug/l
WIn o.t. 1.1.1-Trtch 1.1.Z.Z-,.tr 1.1.2-Trtch 1.1-0Ichlor 1.1-0Ichlor 1.Z-0tchlor 1.Z-0Ichlor 1.Z-0Ichlor cls-1.)-0Ich trana-1.Z.01 trans-1.)-01 2-ChlorOlthyl
IIl.IIIber IMp I ed . lorOlth8nl IChlor.th8nl lorOlth- oeth8nl oethene oeth- oethene opropane hloroprapene chlorOlthene chloroprapene Vinyl Eth.r
...... ........ ........... ............. .......... ........... ............ ........... ........... ........... ............ ............ ............. .............
3487 za-IIOV-90 5 U 5 u 5U 5U 5 U 5 u 5 u 5U 5 U 5 U
3487 "-"AII-" , U 5 U 5U 5U 5 U 5 U 5 U 5U 5 U 5U
3487 16-APlt-91 5U 5 U 5U 5U 5 U 5 U 5 U 5 U 5 U 5 U
3487 05-IEP-91 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5U
3687 O9-MII-88 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5U 5 U 5 U 10 U
3687 04-""'-88 5 U 5 U 5U 5 U Z30 5 U 5 U 5U 5 U 5 U 10 U
3687 19-MJG-88 5 U 5U 5U 5 U 5 U 5U 5 U 5U 5U 5 U
3687 10-1IOV-88 8 5U 5U 5 U 506 5U 92 5 U 5U 5U 10 U
3687 15-'£1-89 63 5 U 5 U 5 U 32 5 U 5 U 5 U 5u 5 u
WIn o.tl 2-But- 2-"..- 4-Methyl-2 Ac.tone Benzene BrClllOdlchl Br08lfol1l BrGllO Clrbon Cubon Tet Chloro Chloro
II""-r _Mpled pent8Ront or_th- _th- disulfide trIChloride benzene eth-
...... ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
3481 28-1IOV-90 10 U 10 U 10 U 10 U 5 U 5 U 5 u 10 U 5 U 5 U 5 U 10 U
3487 15-"AII.91 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U 5 U 5 U 10 U
3487 16-APl-91 10 U 10 U 10 U 10 U 5 U 5U 5 U 10 U 5U 5U 5U 10 U
3487 05-SEP-91 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U 5U 5U 10 U
3687 09-MII-88 10 U 975 10 U 10 U 5 U 5 U 5 U 10 U 5 U 545 5 U 10 U
3687 04-""'-88 10 U 10 U 10 U 11 5 U 5 U 5 U 10 U 5 U 5 U 5U 10 U
3687 19-MJG-88 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U 37 5U 10 U
3681 10-1IOV-88 10 U 10 U 10 U 10 U 5 U 5U 5 U 10 U ' 5U 1611 5U 10 U
3681 15-'£1-89 10 U 10 U 10 U 10 U 5 U 5U 5 U 10 U 5 U 6ZO 5U 10 U .
WIn Oltl ChlorofOl1l . Chloro Olbr08ChI Ethyl Methylene Styrene Tetr8Chlor Toluene Tot.l Trlchloro Vinyl Vinyl
III.IIIber Sellpled _th8nl orC81th- Benzene Chloride OIth- .yl... Ith- aclt.te Chloride
..-- ....... ........... .-.......... .~........ ........... ........... ........... ........... ............ ............ ............. ........... ..........
3487 za-IOV-90 5U 10 U 5 U 5 U 5U 5U 5U 5 U 5 U 5U 10 U 10 U
3487 15-.1.-91 5U 10 U 5 U 5 U 2 " 5 U 5U 5 U 5U 5U 10 U 10 U
3487 16-APlt-91 5U 10 U 5U 5 U 5 U 5U 5U 5 U 5U SU 10 U 10 U
3481 05-IE'-91 5U 10 u 5U 5U 5 U 5 U 5 U Su 5U 5U 10 U 10 U
3687 O9-Ml-88 1370 10 U 5 U 5 U 5 U 5U 5 U 5U 5U 131820 10 U 10 U
3687 04-""'-88 2810 10 U , U 5 U 5U 5 U 2450 5 U 5 U 221860 10 U 10 U
3687 19-MJG-88 56 10 U 5 iJ 5 U 5U 5U 34 5 u 5 U 71150 10 U 10 u
3681 10-1IOV-88 486 10 U 5 U 5 U 5 U 5U S96 5 U 5 U 2451 10 U 10 U
3681 15-fEI.89 270 10 U 5 U 5 U 5 U 5 U 260 , U 5 U 49000 10 U 10 U
UaAn81)"Zed but not detected J.pr..ent below detection tt.lt E-Estl..ted Velue D~lluted SMple
-------
Pq. 110- 20
Ground Vater VoLatiL. Organic ...uLta
E..t Trench.. Ar..
...utt. reported In Ut/l
wen D.t. 1.1.1-Trlc:h 1.1.Z.Z-T.tr. 1.1.Z-Trlc:h '.1-01c:hLor 1.'-0Ichlor '.Z-Olc:hlor 1.Z-01c:hlor '.Z-Olchtor cl.-'.3-0Ich tr..-'.Z-Ol tr_-1.3-01 Z-CI11oroethyl
...e.r . S.f>l\fJled loroathlM achtor.th- loroathlM oath... oath- oathlM oath- oprCIp8M hloropropene chloroethene chloropropene Vinyl Eth.r
...8IU!I ......- _a........ ............. .......... ........... ............ ........... ........... ........... ............ ............ ............. .............
3916 10-NOV-88 SU S U S U SU 5 U . 5 U S U 5 U Su S U 10 U
3916 15-'EI-89 5U 5U 5U SU S U 5 U su 5 U S U 5 U
3986 08-MY-89 5 U 5U 5U 5U 5 U 5 U 5 U 5 U 5U 5 U
3986 21-'EI-9O SU 5 U 5 U 5U 5 U 5 U 2 J 5 u 5U 5 U
3916 04-JUII-9O SU S U S U Su 5 U 5 U 5 U 5 U su 5 U
3986 "-AUG-9O SU 5 u SU SU S U 5 U S U 5 U SU S u
3986. 01-.-90 SU SU 5 u SU 5 U 5 U S U 5 U S'u SU
3986 19-MAII-9' 5 U 5 U 5 u su 5 u 5 u 5 U 5U 5U 5 U
3916 '4-MY-91 SU S U S U SU 5 U 5 U 5 U 5 U SU SU
Yen Oat. 2-autlnCln8 Z-"...... 4-MethvI-Z Ac.tone Benzene BrC8ldlchl IrC8Dfol'll BrC8D C.rbon C.rbon T.t Chloro Chloro
Millibar I..led pet" .,~~ orC81th- _th- dlaulflde trachlorlde benzene .th-
...... ....... ........... ............. ....~..... ........... ........... ........... ........... ............ ............ ............. ........... ..........
3986 10-1IOV-88 10 U 10 U 10 U 10 U 5 U 5 U S U 10 U 5 U 5 U SU 10 U
3986 15-'EI-89 10 U 10 U 10 U 10 U S U S U SU '0 U S U S U SU 10 U
3986 08-MAY-89 10 U 10 U '0 u 10 U 5 U 5 u 5 U '0 U S U 5 U 5U 10 U
3916 2'-'EI-9O 10 U '0 U 10 U '0 U 5U 5 U 5U '0 U 5 U 5 U S U 10 U
3916 04- """-90 10 U 10 U 10.U 271 S U 5 U su 10 U 5 U 5 U 5 U 10 U
3986 "-AUG-9O 10 U 10 U 10 U 10 U S U SU SU 10 U SU S U SU 10 U
3986 0'-NOV-9O 10 U 10 U tOu 10 U S U 5 U SU 10 U S U S U S U 10 U
19-MAII-9' '0 U '0 U '0 U 4 J 5 U SU SU '0 U ' su 5 U 5 U '0 U
3986
3916 '4-MY-91 10 U 10 U 10 U 10 U SU SU 5U 10 U 5 U 5 U 5U '0 U .
wen Oat. ChlorofOl'll Chloro Olbr08Ochl Ethyl Methyl- Itvr- T.trachlor Toluene Total Trlchloro Vinyl Vinyl
....., ",Iad _th818 or_~ Iena- Chloride oath- .XVI... .th- Ac.tat. ~lorlde
-.... .- --- ..--_...... - ........... ........... ........... ........... ............ ............ ............. ........... ..........
3986 10-_-. SU 10 U 5U 5U 5U 5 U 5 5 U 5 U 4'8 '0 U 10 U
J9II6 15-'EI.89 SU 10 U 5U 5U 5 U 5U Su 5U 5U 5 U '0 U 10 U
3916 OI-M'-89 5 U 10 U 5U 5U 5U 5U SU 5 U 5 U 5 U 10 U '0 U
3916 2'-'11-90 5 U 10 U 5U SU 3 JI 5 U s.. . 5 U 5 U 1 .. '0 U 10 U
3986 04-"'-90 SU '0 U 5U 5U 18 1 5U 5U 5 U 5 U 5 U 10 U 10 U
3986 "-AUG-9O 5U. '0 U 5U SU 5 U 5 U 1 J 5 U 5 U 5 U '0 U '0 U
3986 01-NOV-9O 5U 10 U 5 U 5U 71 5 U 5U 5U 5 U 5 U 10 U 10 U
3916 "-MAII-9' 5 U 10 U 5 It 5 U 5 U 5 U 5U SU SU 5 U 10 U 10 U
3986 14-M'-91 5 U '0 U :. 5 U 5 1 5 U 5 U 5 U SU 5 U 10 U '0 U
UaAnliiyzed but not detected J.pr..ant belCIM detection at.lt EaEatl..tad Value O-Dllute,' . ..1.
-------
GroUnd U.ter Votetlte Organic .lIUtta P... 11o. "
E.at Trench.. Are.
...ut ta reported In ue/t
Wett D.te '.'.'-Trlch 1,1,Z,Z-Tetr 1,1,Z-Trlch 1,1-Dlchtor 1,1-Dlchtor 1,Z-Dlchtor 1,Z-Dlchtor 1,Z-Dlchtor cla-1.3-Dlch tr_-1,Z-DI trena-1,3-DI Z-Chtoroethyt
8lueer IMpt ed torOlth- 8Chtoreth- 'orOlth- oethane OIthene OIth- oethene opropene htoropropene chtoroeth- chtoropropene Vlnyt Ether
....- --... _a....... ............. .......... ........... ............ ........... ........... ........... ............ ............ ............. .............
3687 ZJ-AUG-91 13D 1DO 1.1 1DO U 100 U 57 J 100 U 40 J 100 u 100 U 100 U
3986 - -SEP-86 5U 5 U 5U 5 U 5 u 5 u 5 u 5 u 5 u 5 U 10 U
3986 06-MY-87 4U 4 U 4 u 4 U 4 U
3986 OJ-"'-87 4U 4 U 4 U 4U 4 U
3986 0)-.'-87 5U 5U 5 U 5 U 5 U
3986 1Z-DEC-87 5 U 5U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5 U
3986 09-Ml-88 5 U 5 U 5U 5U 5 U 5 U 5 U 5 U 5 U 5 U 10 U
3986 04-MY-88 5 U 5 U 5U 5U 5 U 5 U 5 U 5 U 5 U 5 U 10 U
3986 19-AUG-88 5U 5 U 5 U 5U 5 U 5 U 5 U 5 U 5 U 5U
Wett D.te Z-Iut- Z-Hex- 4-Methy'-Z Acetone lenzene .r~lcht .r_fortl .r- Cerbon C.rbon Tet Cht oro Chtoro
llue.r IMpted pent- or_th- -th- dl8utflde trIChtorlde benz- .th-
...... ...-- ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
3687 23-AUG-91 ZDO U ZOO U ZDO U Z5 IJ 1DO U 1DO U 100 U ZOO U 100 U 870 1DO U 2DO U.
3986 _-.P-86 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U 5U 5 U 10 U
3986 06-MY-87 4U
3986 OJ-JIII-87 4U
3986 03-SEP-87 5U
3986 U-DEC-87 10 U 10 U 10 U 10 U 5 U 5U 5 U 10 U 5U 5U 5 U 10 U
3986 09-Ml-88 1D U 10 U 10 U 10 U 5 U 5 U 5 U . 10 U 5U 5U 5 U 10 u
3986 04-MY.88 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U ' 5U ZZ9Z 5 U 10 U
3986 19-AUG-88 10 U 10 U 10 U 10 U 5 U 5U 5 U 10 U 5U 5U 5U 10 U .
Wett D.t. CIItorofortl CIItoro Dlbr~' Ethyt ...thytene Styr- T.tr8Chtor Tot- Tot.t Trlchtoro Vlnyt Vlnyt
llue.r IMp' ed -th- orC81th- 1enI- Ch'orlde OIthene Ky'''' eth- Acetate CIItorlde
...... ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
3687 Z:S-AUG-91 840 200 U 100 U 100 U 27 J 100 1,1 770 1DO U 100 U 68DDO D 200 U ZDO U
3986 - -.P-86 5U 10 U 5 U 5 U 5U 5U 5 U 5 U 5U 5U 10 u 10 U
3986 06-MY-87 4U 4U 4U
3916 OJ-JIII-87 4U 4U 4U
5986 OJ-.P-87 SU 5 U 5U
3986 1Z-DEC-87 5 U 10 U SU 5U 5U 5U 5 U 5U 5 U 5U 10 U 10 U
3986 09-Ml-88 51,1 10 U 5 U S.. 5 U 5 U 5 U 5 U 4 J 5 U 10 U 10 U
3986 04-MY-88 5U 10 U 5 U 5 U 5 U 5 U 845 5U 51,1 310 10 U 10 U
3986 19-AUG-88 5 U 10 U SU 5U 5U 5 U 5U 5U 5 U 5U 10 U 10 U
u-AnIItned but not detected J-Pr....t betOll detection 1I.lt E-E8tl..ted v.tu. D801 tuted S8IIIpt.
-------
hIe .0- ZZ
Ground Water Volatile Orllenlc Results
East Trenches Area
R..ul ts reported In ug/l
Welt Date '.'.'-Trlch 1.1,Z,Z-Tetr 1,1,Z-Trlch 1,1-Dlchlor 1,1-Dlchlor 1,Z-Dlchlor 1,Z-Dlchlor 1,Z-Dlchlor cls-1,3-Dlch tr_-1,Z-DI tr_-1,3-DI Z-Chloroethvl
11l8Jer 1..led loroeth- achloreth- loroeth- oeth- oeth- oethane oeth- opropene hLoropr~ chloroeth- chloropr~ Vinyl Ether
...... ....-. ......_a. ............. .......... ........... ............ ........... ........... ........... ............ ............ ............. .............
4086 13-DEC-89 5 U 5 U 5 U 5 U 5U 5U 5 U 5 U 5 U 5 U
4086 19-'EI-90 5U 5 U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5 U
4086 ZO-IE'-90 5U 5U 5 U 5 U 5 U 5U 5U 5 U 5 U 5 U
4086 28-110\/-90 5U 5 U 5U 5U 5 U 5 U 5 U 5 U 5 U 5U
4086 11o.IM-91 5U 5 U 5U 5 U 5 U 5 U 5U 5 U 5 U 5 U
4086 16-APII-91 5 U 5 U 5U 5U 5U 5 U 5 U 5 U 5 U 5 U
4086 06-SE'-91 5U 5 U 5 U SU 5 U 5 U 5 U 5 U 5 U 5 U
4186 -SE'-86 5U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5U 10 U
4186 06-1IA'-87 4U 4 U 4U 5 U 4 U
Welt Date 2-aut- 2-"ex- 4-Methvl-Z Acetone 8enz- 8rOGOdIchi Ir_fol'll BrCllO Carbon Carbon Tet Chloro Chloro
IIl8Jer 1..led pent- or_th- Mth- dlauUlde trachlorlde benl- ethane
...... ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
4086 13-DEC-89 10 U 10 U 10 U 10 U 5 U 5 U 5U 10 U 5U 5U 5 U 10 U
4086 19-'EI-90 10 U 10 U 10 U 2 J 5 U 5 U 5U 10 U 5 U 5U 5U 10 U
4086 20-SE'-90 10 U 10 U 10 U 10 U 5 U 5 U 5U 10 U 5U 5 U 5 U 10 U
4086 28-IIOV-90 10 U 10 U 10 U 10 U 5 U 5 U SU 10 U 5 U 5 U 5 U 10 U
4086 11-JM-91 10 U 10 U 10 U .10 U 5 U 5U 5 U 10 U 5U 5 U 5 U 10 U
4086 16-APR-91 10 U 10 U 10 U 10 U 5 U 5U 5U 10 U 5U 5U 5 U 10 U
4086 06-SE'-91 10 U 10 U 10 U 61J 5 U 5U 5U 10 U 5U 5U 5 U 10 U
4186 _-SE,-86 10 U 10 U 10 U 10 U 5U 5U SU .10 U ... 5U SU 5U 10 U
4186 06-IIAY-87 4U
Welt Date Chlorofol'll Chloro Dlbr~hl Ethvl Methvl- Itvr- 'etrachlor 'ol~ Total Trlchloro Vinyl Vinyl
IIl8Jer -..led _th- orC88th- 1enI- Chloride oeth- Xvlenn eth- Acetate ChlOride
...... .....- ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
4086 13-DEC-89 SU 10 U SU SU S. SU SU 5U 5U S U 10 U 10 U
4086 19-'EI-90 SU 10 U S U SU 5U 5 U SU 5U 5.U 5U 10 U 10 U
4086 20-.'-90 SU 10 U 5U 5U SU 5 U SU 5U 5U su 10 U 10 U
4CI86 28-110\/-90 SU 10 U 5U 5U SU 5U 5U 5U 5 U SU 10 U 10 U
4086 U-JAII-91 SU 10 U SU 5U 2 J Su SU 5U 5U 5 U 10 U 10 U
4086 16-APII-91 5 U 10 U 5 U SU SU 5U 5 U 5U 5U SU 10 U 10 U
4086 06-SE'-91 5U 10 U SU 5U 1 IJ 5 U 5 U 5U 5U 5 U 10 U 10 U
4186 -11'-86 5 U 10 U S U SU 5 U 5 U 5U 5U 5U 5 U 10 U 10 U
4186 06-1IA'-87 4U 160 4U
UaAnalVZed but not detected J.pr.....t bel... detection 1I.lt E.Estl..ted Value D-Dlluted S.-ple
-------
P... 110. 21
Ground W.ter Vol.tlle Organic Result.
Elat Trenche. Are.
Results reported In "III
We" D.te 1,I,I-Trlch I,I,2,2-'etr 1,I,2-'rlch 1,1-Dlchtor 1,1-0lchtor 1,2-0lchtor 1,2-0lchtor 1,2-0lchtor el.-I,3.0Ich trIM- 1,2-0 I tr8lll- 1 ,3.01 Z-ChtorOlthvt
llullber IlIIIpled torOlth_ . echtoreth- torOlth- oeth- OIthene oeth- OIthene opropane hloropropene ehtorOlthene chtoropropene Vlnyt Ether
...-. ....... ........... ............. .......... ........... ............ ........... ........... ........... ............ ............ ............. .............
3986 "-AUG-" SU SU SU SU 5 U 5 U 5 U 5 u 5U 5U
4086 06-M'-87 ioU 4U 4 U 4 U 4 U
4086 01-JUII-87 4U ioU 4 U ioU ioU
4086 to-MII-88 5u 5U 5U 5 U 5U 5 U 5 U 5 U 5 U 5 U .'0 U
4086 IZ-M,-ea SU SU SU 5 U 5 U 5 u 5 u 5 U 5 U 5U ,0 U
4086 24-AUG-88 5U 5U SU 5 U 5 U 5U 5 U 5 U 5 U 5 U
4086 "-IOV-88 5U 5U SU 5 U 5 U 5 U 5 U 5 U 5 U 5 U '0 U
4086 '5-'EI-89 5 U 5 U 5U 5U 5 U 5 U 5 U 5 U 5 U 5U
4086 10-M'-89 5U 5U 5U 5 U 5 U 5U 5 U 5 U 5 U 5 U
We" D.te 2-lutanone 2-Huanone 4-Methyt-Z ACltone Benzene BrC8Xtleht IrC80fo... BrOllO Clrbon Clrbon Tet Chloro Chloro
I1l8IIb8r SlIIIpted pent- or_th- -th- dl.utflde trechtorlde benzene eth8ftl
...... ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ..a........ ..........
3986 16-AUG-91 10 U '0 U '0 U 12 1 5 U 5 U 5 U 10 U 5 U 5 U 5 U 10 U
4086 06-.'-87 4 U
4086 0'-JUII-87 ioU
4086 10-MII-88 10 U 10 U '0 U 10 U 5 U 5U 5U 10 U 5 U 5U 5 U 10 U
4086 12-M'.88 10 U 10 U 10 U 10 U 5 U 5U 5 U 10 U 5 U 5u 5 U 10 U
4086 24-AUG-88 10 U 10 U 10 U 10 U 5 U 5U 5U 10 U 5 U 5U 5 U 10 U
4086 '6-1IOY-88 '0 U 10 U 10 U 10 U 5 U 5U 5 U 10 U , 5 U 5 U 5U 10 U
4086 '5-'EI.89 10 U '0 U 10 U 10 U 5 U' 5U 5U 10 U 5U 5U 5U 10 U
4086 10-.'-89 10 U '0 U 10 U 10 U 5 U 5u 5 U 10 U 5 U 5U 5U 10 U .
We" D.te Chtorofo... Chtoro DlbrC80Cht Ethyt Methytene Stvrene Tetr8Chtor 'ot- Totet Trlchtoro Vlnyt Vlnyt
I1l8IIb8r 1811pted _th- orOMth- lenzene Chtorlde OIthene .yl-- eth- Acetata Chtorlde
...- ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
3986 "-AtJG-91 5 U 10 U 5 U 5U 5 U 5 U 5 U 5U 5U 5U '0 U 10 U
4086 06-"'-87 4 U 4U ioU
4086 OhlUll-87 4 U 130 ioU
4086 10-Mll-ea 5 U .'0 U 5 U 5 U 5 U 5 U 5 U 5 U 5U 5U 10 U 10 U
4086 12-"'-88 5 U 10 U 5 U 5 U 5 U 5 U' 5U 5 U 5 U 5U 10 U 10 U
4086 24-_-88 5 U 10 U 5 U 5 U 5 U 5U 5U 5 U 5 U 5U '0 U 10 U
4086 "-IIOY-88 2 JI 10 U . 5 U 5 U 3 JI 5U 5U 4 JI 5U 5U 10 U 10 U
4016 15- FEI-89 5 U 10 U 5 U 5 U 5 U 5U 5U 5U 5U 5U '0 u 10 U
4086 10-.'-89 5 U '0 U 5U 5 U 5 U 5 U 5U 5 U 5 U , U '0 U 10 U
U-An8lyzed but not detected J.pr..ent bel... detection ".It E-Estl..ted v.lue D-Dlluted Sllllple
-------
Page 10- 24
Ground W.ter Voi.tl'. Organic aesu't.
Ealt Trench.. Arel
a"uUI reported In UIII
WIt! Dlt. 1,I,I-Trlch 1,I,Z,Z-T.tr 1,I,Z-Trlch 1,1-0lchior 1,1-0lchior I,Z-Olchior I,Z-Dlchlor ',Z-Dlchlor cll-',3-Dlch tr"-',Z-DI tr"-',3-DI Z-Chloroethyl
...r ...Ied loroeth- echlor.th- loroethene oath- oethene oathane oeth.. oprCIpIM hloropropene chloroath.. chloropropene Vlnvl Ether
...- .._a.. ._a....... .....-~-....- .......... ........... ............ ........... ........... ........... ............ ............ ............. .............
4186 22- .1&11-90 5U 5U 5 U 5 U 5U 5U 5U 5 U 5 U 5 U
4186 17-.P-9O 5U 5U 5 U 5 U 5 U SU 5U 5 U 5 U 5U
4186 2O-1IOV-9O SU SU 5 U 5 U 5 U 5 U 5U 5 U 5 U 5U
4'86 10-.10-91 5 U 5U 5 U 5U 5 U 5 U 5 U 5 U 5U 5U
4186 IS-API!-91 5U 5 U 5U 5U 5 U 5 U 5U 5 U 5 U 5 U
4Z86 -IEP-86 4 .I 5 U 5U 5U 4.1 5 U 5 U 5 U 53 5U 10 U
4286 INIAII-87 4U 4U 4U 4 U 11
4286 26-.'-87 4U 4U 4U 320 4U
4286 0]-.P-87 5U 5U 26 5U 5U
WIt! Oltl 2-autanone 2-Hlxanone 4-Methyl-2 Ac.tone Benzene .rC8Cldlchl .rCl8Ofonl .rCl8O C.rbon C.rbon Tet Chloro Chloro
I..r IlIIpl ed pentanone orC88th- _thine dlluUlde trichloride b8l1l:ene ethane
...... ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
4186 22-"111-90 10 U 10 U 10 U 188 5 U 5 U 5U 10 U 5 U 5 U 5 U 10 U
4'86 "-IEP-90 51J 10 U '0 U 5 1.1 5 U SU SU 10 U 5 U J .. 5 U 10 U
4186 20-1IOV-9O 10 U 10 U 10 U 10 U 5 U 5U 5U '0 U 5 U 2 .. 5 U 10 U
4186 10-.10-91 10 U 10 U 10 U 10 U 5U 5U SU 10 U 5 U 7 5U 10 U
4186 15-.a-91 10 U 10 U 10 U 14 5 U 5U 5U 10 U 5U 4.. 5 U 10 U
4286 -.P-86 5 ... 10 U 111 U 10 U 5 U SU 5U 10 U 5 U 1560 5U 10 U
4286 1Z~"-81 150
26-M'-81 ' 3300
4286
4286 OJ-IEP-81 4IJS
WIt! D.te Chlorofonl Chloro DlbrCl80Chi Ethyl Methyl.. Ityr.. Tetrlchlor ToIU1n8 Tot.I Trlmloro Vlnv' Vlnvl
.Wllber IIIIpIed Mth- orOMthene 1enI.. Chloride oath... Kyl... .th... Acet.te Chloride
--- ..._a. ........... ............. .......... ........... ........... ........... ........... .....~...... ............ ............. ........... ..........
"86 22- .1&11-90 5U 10 U 5U 5 U 6. 5U 5 U 5 U 5 U 5 U 10 U 10 U
"86 17-.P-9O 1 .. 10 U 5 U 5 U 1. 5U , ... 1 .. 5 U 5U 10 U IOU
4186 2O-1IJV-9O 2 .. 10 U SU SU J ... 5 U 2 .. J .. 5 U SU 10 U 10 U
4186 . 10-"0-91 1 .. 10 U SU 5U 2.. 5U 14 su 5 U 2.. 10 U IOU
4186 15-APl-" SU 10 U 5U SU 5 U 5U 8 5U 5U 2.. 10 U 10 U
4286 -.P-86 159 .10 U 5 U 5U 6 5U 3ZO. 5 U 5U 260 10 U 10 U
4286 1NIAI-81 4D 152 110
4286 26-M'-81 100 JZOO 1400
4286 OJ-.P-87 101 1040 870
U-Anli yzed but not detected .....r..ent .'ow detection ".It E-Eatl..t8d V.lue D-DI'ut8d S-.pie
-------
Page 10. Z]
Ground Water Voletll. Organic .e.ult.
Eest Yrench.. Area
Results reported In U81l
lieU Date 1,1,1-Trlch 1,1,Z,Z-Yetr 1,1,Z-Trlch 1,1-Dlchlor 1,1-Dlchlor 1,Z-Dlchlor 1,Z-Dlchlor 1 ,Z-D Ichlor cl.-1,3-Dlch trena-1,Z-DI trena-1,3-DI Z-Chloroethyl
IYlber S8IIpi ed loroathane 8chlor.th.. loroathene oathene Geth- oeth- oath- opropene hloropropene chloroethene chloropropene Vinyl Ether
...- -...... ........... ............. .......~.. ........... ............ ........... ........... ........... ............ ............ ............. .............
4186 01-""-87 4U 4 U 4U 4U 4 U
4186 2O-"UL-87 4U 4U 4 U 4 U 4 U
4186 10-W-88 5U 5 U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 10 U
4186 O4-.Y-88 5U 5 U 5 U 5 U 5 U 5 U 7 5 U 5U 5 U .10 U
4186 Z2-1IOV-88 5U 5 U 5U 5 U 5 U 5 U 5 U 5U 5U 5 U 10 U
4186 2O-fEI-89 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U
4186 10-.Y-89 5 U 5 U 5U 5 U 5 U 5 U 5 U 5 U 5U 5 U
4186 07-DEC-89 5 U 5U 5U 5 U 5 U 5 U 5 U 5U .5 U 5 U
4186 19-FEI-90 5U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5U 5U
lieU Dat. Z-lut- Z-"e.- 4-Methyl-Z Acetone Benzene BrCllllOd I chl Br-fol1l Bram Carbon Carbon 'et Chloro Chloro
lluieer l8llpled pent- or-th- _thane dlluUlde trechlorlde benz- .thane
...-- ..-... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
4186 OhlUll-87 4 U
4186 ZO-"UL-87 4 U
4186 10-W-88 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U 5 U 5 U 10 U
4186 04-.'-88 10 U 10 U 10 U 10 U 5U 5 U 5 U 10 U 5U 5 U 5 U 10 U
4186 ZZ-IIOV-88 10 U 10 U 10 U 10 U 5 U 5U 5 U 10 U 5 U 5U 5 U 10 U
4186 ZO.fEI-89 10 U 10 U 10 U 10 U 5 U 5U 5 U 10 U 5 U 5U 5 U 10 U
4186 10-.Y-89 10 U 10 U 10 U 10 U 5 U 5U 5U 10 U 5 U 5U 5 U 10 U
4186 07.DEC-89 10 U 10 U 10 U 10 U 5 U 5 U 5U 10 U '. 5U 5U 5 U 10 U
4186 19-fEI-90 10 U 10 U 10 U 10 U 5U 5 U 5U 10 U 5U 5U 5 U 10 U .
lieU Dat. Chlorofonl Chloro Dlbr-"I Ethyl Methyl- Ityr- Tetr8chlor Yoluene Tot.I Trlchloro Vinyl Vinyl
IYlber ",Ied _thane or-thane 1l1li- Chloride oath- Kyl... .th- Ac.tate Chloride
...-- ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
4186 01-M-87 4U 4U 4U
4186 2O-M-87 4U 11 4U
4186 10-W-as 5U 10 U 5 u 5 U 5U 5 U 5U 5U 5U 5U 10 U 10 U
4186 O4-.Y-88 5U 10 U 5 U 5U 5U 5 U 50 5 U 5U 5U 10 U 10 U
4186 2Z-IIIH-as 2 "I 10 U 5U 5U 4 "I 5U 5U 4..1 5U 5U 10 U 10 U
4186 2O-fEI-89 5 U 10 U 5 u 5 U 5 U 5U 5 U 5 U 5U 3.. 10 U 10U
4186 10-.Y-89 5 U to U 5 U 5 U 5 U 5U 5U 5 U 5U 5U 10 U 10 U
4186 07-DEC-89 5 U 10 U 5 U 5 U 6 5 U 5U 5 U 5U 5 U 10 U 10 U
4186 19-fEI-90 5 U 10 U 5U 5 U 5 I 5U 5 U 5U 5U 5U 10 U 10 U
""Analyzed but not detected "-Pre.ent beiOM detection 11.1 t E-E.tl..ted Value D-Dtluted S..,I.
-------
'ag. 810. 26
Ground wat.r Vol at I I. Organic ..autta
Ea,t Trench., Ar..
.Hul ta reported In "lilt
Yett Oata ',',1-Trlch 1.1,Z,Z-Tatr ',1,Z-Trlch 1,'-Olchtor 1,1-0Ichtor 1,Z-0Ichtor 1,Z-Dlchtor 1,Z-Dlchtor cl,-1,3-Dlch tr_-',Z-Ol tr_-1,3-01 Z-Chloroathvl
8IUlbar IIIIIpt ed loroathana . achtor.thana loroathana oathana oathene oethana oathena opropane hloropropana chloroethene chloropropana Vinyl Eth.r
.- ....... -......... ............. .......... ........... ............ ........... ........... ........... ..a_....... ............ ............. .............
4Z86 3Ch'AII-9O 5U 5U 5U 5 U 5 U 5 U 41 5 U 5 U 5 U
4286 11-0"-90 5 U 5 U 5U 5 U Z J 5 U 59 5 U 5 U 5 U
4286 24-AUG-9O 'J 5U 5 U 5 U 2 J 5 U 63 5 u 5 u 5 U
4286 16-1IOV-9O 2 J 5 U 5 U 5 U Z J 5 U 49 5U 5U 5 U
4286 08-MAl-91 SU 5 U SU 5 U 'J 5U 37 5 U 5 U 5U
4286 17-MA'-91 SU 5U 5U 5 U 5 U 5 U 3Z 5 U 5 U su
6786 "-MAY-87 4U 4U 4 U 4 U 4U
6786 01-JU8l-87 4 U 4U 4 U 4 U 4U
6786 2O-JUL-87 4U 4 U 4U 4 U 4U
"'tt Data Z-lut- Z-H.xW*18 4-M.thvt-Z Ac.tone Benzene BrC8ldlcht Br-fo,.. BraID Carbon Carbon T.t Cht oro Chloro
tUlllblr S8IIIpted pentW*18 or-thana _th- dllUlflde trachtorlde benzene .thana
...... ....... ........... ............. ....~..... ........... ........... ........... ........... ............ ............ ............. ........... ..........
4286 ]O-JAI-9O 10 U 10 U 10 U 10 U 5U 5 U 5U 10 U 5U 600 5 U 10 U
4286 11-0l1li-90 10 U 10 U 10 U Z JI 5 U 5 U 5 U 10 U 5U 1000 5 U 10 U
4286 24-AUG-9O 10 U 10 U 10 U '0 U 5 U 5 U 5U 10 U 5U 1000 E 5U 10 U
4286 16-1IOV-9O 10 U 10 U 10 U 10 U 5 U 5 U 5U 10 U 5U 7000 5 U 10 U
4286 08-MAl-91 10 U 10 U 10 U 7 IJ 5U 5 U SU 10 U 5U 500 0 5 U 10 U
4Z86 17-",,'-91 10 U 10 U 10 U 18 I 5 U 5U .5 U 10 U Su 420D 5U 10 U
6786 "-",,'-87 4U
,
6786 01-JU8l-87 4U
6786 2O-JUL-87 4U
"'tt Oat. Chlorof- Chloro OlbralOChi Ethvl Methvlene Stvrene Tatrachtor ToI- Total Trlchloro Vinyl Vlnvl
IlullJar lIIIIpi ed 8th- orGMth'"!llanl- Chloride oath- .Vl- .thene Acatata Chloride
.- .-- -..... --- .--- --..- -.-..... .....-..- ........... ............ ............ ............. ..........- ..........
4286 ]O-JAII-9O '5 '0 U 5U 5U 5U 5U 160 5U SU 88 10 U 10 U
4286 "-JU8l-9O 20 10 U 5 U 5U 3 JI su '90 SU 5 U 95 10 U 10 U
4216 24-U-9O 20 '0 U 5U 5U 4 IJ 5 U 220 E SU SU 100 10 U lOU
4286 "-1IOV-9O " .10 U SU SU 5U 5U 170 5U 5U 80 10 U lOU
4286 OI-MII-91 19 10 U 5 U SU "I 5 U . '20 21J 21J 3400 10 U 10 U
4286 17-MAY-91 " 10 U SU 5U 5U 5U 99 5 U SU 53 10 U 10 U
6786 "-",,'-87 4U 4U 4 U
6786 OHUt-87 4 U 4U 4 U
6786 20-JUL-87 4U 4U 4 U
U8AnalVled but not detected J.prHent bal«* detection ".It E-E8tl..tad Value DaDtluted S8IIIpi.
-------
P.lle 110. Z5
Ground ".ter Vol.t It e GrllM'll c ."\flt.
E..t Trench.. Aree
...ult. reported In ue/t
Welt Dete 1,1,1-Trlch 1,1,2,Z-Tetr 1,1,2-Trlch 1,1-0lchlor 1,1-0lchlor 1,Z-Olchlor 1,2-0lchlor 1,2-Dlchtor cl.-1,3-0Ich trlll18-1,2-DI tr_-1,3-DI 2-Chloroethyl
IIwmer SlIIIPled lor08thene echloreth.. loroethene oethlne oethlne oeth- oethene oprapene hloropropene chlor08thene chloropropene Vinyl Ether
...... ........ ........... ............. .......... ........... .........~.. ........... ........... ........... ............ ......._a.. ............. .............
4286 14-OCT-87 5 U 5 U 5 U 5 U 5 U
4286 03-MQ-88 5 U 5 U 5 U 5 U 4 J 5 U 5 U 5 U 5U 5 U 10 U
4286 04-.'-88 5 U 5U 5 U 5U 5 U 5 U 5 U 5 U 5 U 5 U 10 U
4286 ZS-AUG-88 5 U 5U 5U 5U 5 U 5U 5 U 5 U 5 U 5 U
4286 17-1IOV-88 5U 5 U 5 U 5U 3 J 5 U 5 U 5 U 5 U 5U 10 U
4286 20-'EI-89 5U 5 U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5 U
4286 08-.'-89 5 U 5U 5U 5 U 5 U 5 U 5 U 5u 5.U 5 U
4286 17-AUG-89 5 U 5U 5U 5 U 4 J 5U 5 U 5 U 5 U 5 U 5 U 10 U
4286 06-DEC-89 50 U 50 U 50 U 50 U 50 U 50 U 50 U 50 U 50 U 50 U
Welt Dete 2-lut- 2-Hell- 4-Nethyl-2 Acetone Benz- Ir08lDdI chi Ir_fol'll Br- C.rbon Carbon Tet Chloro Chi oro
Nlllber SllllPI ed pent..... orC81th- ..th- dl.ulflde trIChloride benzene ethlne
...... ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
4286 "-OCT-87 1695
4286 03-MQ-88 10 U 10 U 10 U 10 U 5 U 5 U 5U 10 U 5 U 1741 5 U 10 U
4286 04-.'-88 10 U 10 U 10 U 5 J 5 U 5 U 5 U 10 U 5 U 5 U 5 U 10 U
4286 ZS-AUG-88 10 U 10 U 10 U 10 U 5 U 5U 5 U 10 U 5 U 1353 5U 10 U
4286 17-1IOV-88 10 U 10 U 10 U 10 U 5U 5U 5 U 10 U 5U 1300 5U 10 U
4Z86 20-""-89 10 U 10 U 10 U 10 U 5U 5 U 5U 10 U su 760 5 U 10 U
4286 08-.'-89 10 U 10 U 10 U 10 U 5 U 5U 5 U 10 U 5 U 1100 5 U 10 U
4286 17-AUG-89 10 U 10 U 10 U . 10 U 5U 5U 5U 10 U ' 5U 1000 5U 10 U
4286 06-DEC-89 100 U 100 U 100 U 100 U 50 U 50 U 50 U 100 U 50 U 770 50 U 100 U.
well Dete ChlorofOl'll Chloro DlbrC80dlt Ethyl Methyl- It",- Tetredllor Toluene Totel Trlchloro Vinyl Vinyl
llulller IlIIIPled 81th- or..th.-. lenzene Chloride 08th- Kyl... ethene Acetete Chloride
...... ...-.. ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
4286 14-OCT-87 41 626 197
4286 OHIM-88 43 10 U su 5U 5 U 5U 516 5 U 5U 274 10 U 10 U
4286 04-.'-88 57 10 U 5 U 5 U 5 U 5U 5U 5U 5 U 5U 10 U 10 U
4286 ZS-AUG-88 SU 10 U 5 U 5 U 5U 5U 382 5 U 5U 153 10 U 10 U
4286 17-1IOV-88 21 1 10 U 5 U 5 U 2 JI 5 U 310 4 JI 5U 140 10 U 10 U
4286 20-'EI-89 20 10 U su 5U 5U 5U 180 5 U 5U 95 10 U 10 U
4286 08-.'-89 21 .. 10 U 5 U 5U 5U 5U 300 5U $ U 190 10 U 10 U
4286 17-AUQ-89 33 10 U 5 U 5 U 5U 5U 230 5U 5U 180 10 U 10 U
4286 06-DEC-89 50 U 100 U 50 U 50 U 50 U SO U 130 SO U 50 U 50 u 100 U 100 U
u-An8\yzed but not detected J-Pr..ent be\ow detection 1I.lt E-Eatl..ted Velue DoGHuted SlIIIple
-------
'8g8 110- 28
Ground W8ter Voiatlia Orgenlc a..uit.
Ea.t Trenche. Area
Result. reported In UII/I
Well Dlt. 1,1,1-Trlch 1,1,Z,Z-T.tr 1,1,Z-Trlch 1,1-Dlchtor 1,1-Dlchlor 1,2-Dlchlor 1,Z-0Ichlor 1,2-0Ichlor cl.-1,3-0Ich tr_-1,Z-OI tr_-1,3-01 Z-Chloroethyl
lllIIIbtr Slllpi ed loroethane achlor.th- loroeth- oeth- oethene oeth- oethene opropene I!loropropene chlor08thene chloropropene Vlnyt Ether
...... ..-... ........... ............. .......... ........... ............ ........... ........... ........... ............ ............ ............. .............
1218789 08-MAl-91 5 U 15 5U 5 U I, J 5 U 90 5U 5 U 5U
1~18789 21-MAY.91 Z J 5 U 5U 5 U 4 J 5 U 90 5U 5 U 5u
IZ18789 ZO-auo-91 5U 4 ~ 5U 5 U 7 5 U 170 5 U 5 U 5 U
Well Oate 2-aut- 2-"e.- 4-Mathyl-2 Acetone Benzene BrOl8Ddlchl Ir-fone Br- Carbon Carbon Tet Chiaro Chi oro
lIumar S8IIIP1 ed pant- or_th- _th- dl.utllde trachlorlde benzene .th-
...... ....... ........... ............. .......... ........... ........... ........... ....a...... ............ ............ ............. ........... ..........
1218789 oa-MAII-91 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U 830 D 5 U 10 U
1218789 21-MY-91 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U 1500 D 5 U 10 U
1218789 ZO-AUG-91 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U 1600 0 5 U 10 U
Well Dlt. ChtorofoMl Chloro DlbrOlOChl Ethyl Methylene Styrene Tetnchlor Toluene . T otll Trlchloro Vinyl Vlnyt
lllIIIbtr IMpled _th- or_th- lanzene Chloride OIthene lCylene. .thene acetlt. Chloride
...... ....... ........... ............. ........~. ........... ........... ........... ........... ............ ............ ............. ........... ..........
8218789 oa-MAR-91 36 10 U 5U 5 U 5 8 5 U '70 0 5 U 5U '00 0 10 U 10 U
8218789 21-MAY-91 18 10 U 5 U 5 U 2 B~ 5 U 280 0 5U 5 U 110 '0 U 10 U
1218789 ZO-AUG-91 22 10 U 5U 5U 5 U 5 U Z70 D 5 U 5U 160 10 U 10 U
,
UaAnalyzed but not detected
AeAcceptable Mlth quellflcatlona
~"r..ant bat OM detection 1I.lt
V-Vllld end acceptable
EaE.tl..tad Value
...eJected
-------
p... 110- Z7
Ground Wlter Vol It lie Organic Resultl
Eist Trenches Arel
Result. reported In Ut/l
Will Dati 1,1,1-Trlch 1,1,Z,Z-Tltr 1,1,Z-Trlch 1,1-Dlchlor 1,1-0Ichlor 1,Z-Olchlor 1,Z-Olchlor 1,Z-Olchlor cl.-1,3-0Ich tr_-1,Z-OI tr_-1,3-01 Z-Chloroethyl
lI...r SIIIIpI ed loroeth- echlorlthane loroeth- oethllll oeth- oethllll oeth- oprapane hl oropropene chloroeth- chloropropene Vinyl Ether
...... ....... ........... ............. .......... ........... ............ ........... ........... ........... ............ ............ ............. .............
6716 l3-DEC-89 5 U 5U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5U
6716 08-FEI-9O Z5 5 UJ 5U 5 U 18 5 U 5 U 5 U 5 U 5U
6716 1Z-JtJI-9O 5 U 5 U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5U
6716 ZZ-AUG-9O 5 U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U
6716 OS-OCT-9O 5 U 5U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U
IZ18789 1,",WI-9O 5 U 5U 5U 5 U 5 U 5 U 5 U 5U 5 U 5U
IZ18789 25-MAY-9O 5 U 5U 5U 5 U 5 U 5 U 95 5U 5 U 5 U
IZ18789 13-SEP-9O 50 U 50 U 50 U 50 U 50 U 50 U 50 U 50 U 50 U 50 u
IZ18789 ZZ-OCT-9O 5 U 5U 5U 5 U 3 J 5 U 75 5U 5U 5 U
Will Dati Z-Iut- Z-Hlx- 4-Methyl-Z Acetone lenz- Iromodlchl Ir_fol"ll Ir- Carbon eerbon Tet Chloro Chloro
lI...r SIIIIpI ed pent- or_thane _th- dllulflde trichloride benz- eth-
...... ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
6716 13-0Ee-89 10 u 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 u 5 U 5 U 10 U
6786 08-FEI-9O 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U 1 J 5U 10 U
6716 1Z-JtJI-9O 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U 5 U 5 U 10 U
6786 ZZ-AUG-9O 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U 5U 5U 10 U
6786 OS-OC.T-9O 10 U 10 U 10 U .10 U 5 U 5 U 5 U 10 U 5 U 5U 5 U 10 U
IZ18789 14-MAR-90 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U 730 5U 10 U
IZ18789 Z5-MAY-90 10 U 10 U 10 U 10 U 5 U 5 U 5 U 10 U 5 U 560 5 U 10 U
IZ18789 13-SEP-90 100 U 100 U 100 U 100 U 50 U 50 U 50 U 100 U " 50 U 9Z0 11 IJ 100 U
IZ18789, 22-OCT-9O 10 U 10 U 10 U "I 5 U 5 U 5U 10 U 5U 9600 5U 10 U .
Well Dati Chlorofol'll Chloro DlbrC80Chl Ethyl "ethyl- Styr- Tltrechlor Tol- Total Trlchloro Vinyl Vinyl
lI...r SIIIIpI ed _th- or_thane lenz- Chloride oeth- Xyl.... Ith- Acetatl Chloride
...... ....... ........... ............. .......... ........... ........... ........... ........... ............ ............ ............. ........... ..........
6716 13-DEC-89 5 U 10 U 5 U 5 U 5 U 5 U 5U 5U 5 U 5U 10 U 10 U
6786 08-FEI-9O 5U 10 u 5 U 5 U 4 JI 5 U 4 J 5U 5 U JJ 10 U 10 U
6786 1Z-JUl-9O 5U 10 U 5 u 5 U Z .II 5 U 5U 5 U 5U 5U 10 U 10 U
6786 22-AUG-9O 5U 10 U 5U 5U J IJ 5 U 5 U 5U 5 U 5U 10 U 10 U
6716 OS-OCT-9O 5 U 10 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 10 U 10 U
8Z18789 14-MAl-90 18 10 U 5U 5 U 5 U 5U 170 5 U 5U 9Z 10 U 10 U
IZ18789 25-MAY-90 18 10 U 5U 5 U 5 U 5 U Z10 5U 5 U 100 10 U 10 U
IZ18789 13-SEP-9O 18 J 100 U 50 U 50 U 11 J 50 U 200 JOJ 50 U 79 100 U 100 U
IZ18789 ZZ-OCT -90 " 10 U 5U 5 U 'I 5 U ZOO 0 5 U 5 U 99 10 U 10 U
U-Anll)'Zed but not detected Japresent below detection 1I.lt E-E8tl..ted Value DaDlluted S8Ipie
-------
"841 110.
Ground ".t.r DI..olved 118t.1 Result.
90J P8d Are.
R..ult. report8d In 818"
Well O.te Ahal... Antl80nY Arelnlc larha leryill.. C_I.. C.lcl.. Cesl.. Chreal.. Cobalt Copper Iron Le8d L Ithl..
lIi8er 1~18d (AI) (AI) (A.) (8a) (Ie) (Cd) (Ca) (C.) (Cr) (Co) (Cu) ('e) (Pb) . (ll)
. ...... ........» ........ ......... .._a.... '......... ......... ....... ....... ....... ........ ....... ....... ....... ....... .......
0171 -MJG-86 0.1 U 0.05 U 0.002 U 0.1 U 0.005 U 0.005 U 84 0.1 U 0.01 U 0.17 0.025 U 0.27 U 0.01 U
0171 09-MII-87 0.029 U 0.06 U 0.01 U 0_3006 0.005 U 0.005 U 74.2379 0.2 U 0.01 U 0.022 U 0.0063 U 0.436 0.005 U
0171 JO-APR-87 0.029 U 0.06 U 0.01 U 0.2387 0.005 U 0_005 U 71.7187 0.2 U 0.01 U 0.022 U 0.0063 U 0.2571 0.005 U
0171 01-.'-87 0.06 U 0.01 U 0.005 U 0.2 U 0.005 U
0171 21-.'-87 0.029 U 0.06 U 0.01 U 0.2969 0.005 U 0.005 U 86.5157 0.2 U 0.01 U 0.022 U 0.0063 U 1.~J 0.02
0171 02-JUL-87 0.0505 0.02 U 0.005 U 0.299 0.005 U 0.001 U 79.9108 0.02 U 0.01 U 0.022 U 0.0138 0.7001 0.005 U
0171 15-OC'-87 0.0619 0.02 U 0.005 U 0.2754 0.002.1 0.0007.1 61.9404 0.02 U 0.0208 0.022 U 0.0063 U 0.2821 0.002 J 0.04 J
0171 26-'EI-88 0.029 U 0.022 0.005 U 0.2707 0.005 U 0.001 U 62. 7J4 0.02 U 0.01 U 0.022 U 0.0063 U . 0.2209 0.005 U 0.1 U
0171 19-APR-88 0.029 U 0.034 U 0.005 U 0.2153 0.001 U 0.005 U 62.7596 0.02 U 0.01'U 0.022 U 0.0155 0.9135 0.005 U 0.1 U
0171 26-M-88 0.029 U 0.0357 0.005 U 0.295 0.001 U 0.005 U 76.0152 0.02 U 0.01 U 0.022 U 0.0063 U 0.3598 0.005 U
0171 31-OC'-88 0.0412 0.034 U 0.005 U 0.2943 0.001 U 0.005 U 75 . 7'906 0.02 U 0.01 U 0_022 U 0.0063 U 0.068 0.005 U
0171 O2-'EI-89. 0.0193.1 0.05 U 0.001 U 0.2967 0.002 U 0.005 U 76.9057 0.005 U 0.0093..1 0.029 U 0.0114 0.221 0.001 U
0171 02-.'-89 0.0261.1 0.05 U .001 iI 0.2785 0.002 U 0.005 U 71.9889 .2 U 0.009 U 0.029 U 0.004 U 0.035 U .001 U
0171 08.MJG-89 0.05 U 0.2795 0.002 U 0.005 U 70.6931 0.009 U 0.029 U 0.004 U 0.035 U
Well O.te ....,..1.. M8nI_.e Mercury Mol ybdeBa IIlckel Pot...I.. Selenl.. Sliver Socii.. Strontl.. 'hall I.. Tin Van8dl.. Zinc
IlUlllMtr S~led (Mil) (M8) (H8) (No) (III) (I() (Se) (All) (III) (Sr) un (In) (V) (In)
...... ....... ........ ......... ......... ......... ......... ......... ....... ....... ........ ....... ......... ....... ......... .......
0171 ~MJG-86 15 0.143 0.0002 U 0.1 U 0.04 U 1.66 0.015 0.02 11.2 0.58 0.01 U 0.05 U 0.04 U
0171 09-MAR-87 14.5046 0.1243 0.0002 U 0.022 U 0.037 U 5 U 0.005 U 0.0076 U 16.5::; 0.4816 0.01 U 0.024 U 0.02 U
0171 3D.APR-87 16.2021 0.1025 0.0002 U 0.022 U 0.037 U 5 U 0.005 U 0.0076 U 18.952 0.5248 0.01 U 0.024 U 0.02 U
0171 01..'-87 0.0002 U 5 U 0.005 U 0.01 U 0.02 U
0171 21-.'-87 14.9964 0_1627 0.0002 U 0.022 U 0.037 U 5U 0.005 U 0.0076 U 19.9155 0.4885 0.01 U 0.024 U 0.0417
0171 02-JUL-87 13.5221 0.1437 0.0002 U 0.022 U 0.0502 1.2 0.005 U 0.0076 U 19_1208 0.5254 0.01 U 0.024 U 0.031
0171 15-OC,-a7 . 15.7J03 o.om 0.0002 U 0.022 U 0.037 U 1.6 0.005 U 0.0076 U 17.111. 0.4912 0.01 U 0.0243 0.0395
0171 26-'EI-88 14.4334 . 0.0953 0.0002 U 0.022 U 0_037 U 1.5 0.005 U 0.0076 U 17.831 0.4952 0.01 U 0.024 U 0.0268
0171 19-APR-88 14.0425 0.0963 0.0002 U 0.022 U 0.037 U 1.J 0.003 .I 0.0076 U 16.936 0_4521 0.01 U 0.036 U 0.0259
0171 26-.IUL-88 14.9166 0.1247 0.0002 U 0.022 U 0.037 U 1.2 0.005 U 0.0076 U 19.9541 0.4989 0.01 U 0.036 U 0.02 U
0171 31-OC'-88 15.9217 O. '" 0.0002 U 0.022 U 0.037 U 2.6 0.005 U 0_0076 U 19.3502 0.5496 0.01 U 0.036 U 0.024
0171 O2-'EI-89 1'.2646 0.1109 0.0002 U 0.027 U 0.0336.1 1.2 J .0019 .I 0.0049.1 18.7601 0.5169 0.001 U 0.034 U 0.008 U
0171 02-.'-89 14.258 0.1147 .0002 U 0.027 U .022 U 1.35 .I .001 U 0.004 U 17.5609 0_5274 .001 U 0.034 U 0.008 U
0171 08-MJG-89 15_5688 0.0945 0.027 U 0.022 U 0.004 U 16.3534 0.511 0.034 U. 0.008 U
I-v.lue I... then Contrect Required Oetectlon LI.lt (CROL) but IIre.ter then Il'I8t~t Oetectlon LI.tt (l0L)
*aGupllc.te InIlysl. not Mlthln control ll.lts
UaAnlt yzed but not detected .I-Pr..ent bllOM detection 1I.lt E-Estl..ted Value
-------
GROUND-WATER SAMPLING RESULTS
-------
PI8e No. 3
Ground Water Ol.solved M.tel R..ult.
903 Pad Aree
lesulu reported In ..,/l
Weu Dete Al~lrus AntlMny Arsenic 'IrI~ 'erylll~ Cecblua Celch.. C..IUI ChrOlllua Cobalt Copper Iron Lead Llthlua
Nllllb8r llIIpled (Al) (Al) (As) (BI) (Be) (Cd) (CI) (Cs) (Cr) (Co) (Cu) (Fe) (Pb) (LI)
...-. ....... ........ ......... ......... ......... ......... ....... ....... ....... ........ ....... ....... ....... ....... .......
0271 21-110'1'90 0.156' 0.0523 . 0.002 U 0.114 BE 0.001 U 0.0053 324 0.016 U 0.0401 0.0142 I 0.0104 I 0.156 0.001 U 0.101
0271 "-APt-91 0.0698 I 0.006 U 0.002 U 0.127 8 0.001 U 0.002 U 237 0.112 U 0.003 U 0.003 U 0.011 U 53.2 - 0.001 U 0.121
0211 10-SEP-91 0.139 I 0.05 U 0.002 U 0.113 I 0.0042 8 0.003 U 260 0.5 U 0.005 U 0.01 U 0.01 U 39.5 0.0011' 0.125
1181 18'SEP'87 0.029 U 0.02 U 0.005 U 0.1299 0.005 U 0.001 U 116.9412 0.02 U 0.01 U 0.022 U 0.0063 U 0.0069 U 0.003 J 0.01
1187 18'FEI'1I 0.029 U 0.02 U 0.005 U 0.1049 0.005 U 0.001 U 98.4283 0.02 U 0.01 U 0.022 U 0.0063 U 0.0224 0.005 U 0.06 J
1187 01 'OEC-89 .2 U .06 U .01 U .2 U .005 U .005 U 90 2.5 U .01 U .05 U .025 U .1 U .003 U .1 U
1187 15.JON.9O 0.2 U 0.06 U 0.01 U 0.2 U 0.005 U 0.005 U 105 0.1 U 0.01 U 0.05 U 0.025 U 0.1 U 0.003 U 0.1 U
1187. ze.IIC)V.9O 0.0596' 0.0318 I 0.002 U 0.0824 I 0.001 U 0.002 U 109 0.016 U 0.011 0.0043 8 0.0098 I 0.0991 I 0.001 OW 0.0566 I
1187 06'SEP'91 0.1 U 0.05 U 0.002 U 0.243 0.002 U 0.0051 98.2 0.5 U 0.005 U 0.01 U 0.01 U 0.05 U 0.0014 I 0.05 U
1287 02-SEP-87 0.0852 0.02 U 0.005 U 0.0843 0.005 U 0.0005 J 35.195 0.02 U 0.01 U 0.022 U 0.0063 U 0.0385 0.005 U 0.13
1287 26.fE8-11 0.029 U 0.02 U 0.005 U 0.0434 0.005 iJ 0.001 U 31.0631 0.02 U 0.01 U 0.022 U 0.0088 0.0169 0.005 U 0.11
1287 21'API-88 0.041 0.034 U 0.005 U 0.0332 0.001 U 0.005 U 36.1776 0.02 U 0.01 U 0.022 U 0.0098 0.0811 0.005 U 0.1 U
1281 26.JUL'1I 0.0351 0.034 U 0.005 U 0.0508 0.001 U 0.005 u 38.122 0.02 U 0.0561 0.022 u 0.0076 0.2085 0.005 U
1287 20'UP'9O 0.01 U 0.001 U 0.002 U 0.0321 8 0.001 U 0.002 UN 28.6 0.092 U 0.005 U 0.003 U 0.002 UE 0.014 U 0.001 UN 0.01 I
WeU Dlte "Ignnlua M8ng...e Mercury Molybdenus Nickel Potlsslua Sel..,lua Silver Sodlua Strontlua Ihelllua IIn Venadlua Zinc
NUIIII8r llIIpl ed (MI) (M8) (H8) (!to) (NI) (Ie) (Se) (AI) (NI) (Sr) (ll) (In) (V) (In)
...... ....... ........ ......... ......... ......... ......... ......... ....... ....... ........ ....... ......... ....... ......... .......
0271 21-NOV.90 79.8 E 0.257 0.0002 U 0.0236 . 0.0408 3.14 BE 0.017 51 0.0099' 218 E 2.19 E 0.002 U 0.0508 . 0.0189' 0.0092'
0271 19'API-91 64.6 1.05 0.0002 U 0.0081 8 0.0202' 3.48' 0.0117 I 0.002 U 3" 1.69 0.001 0.01 U 0.0026' 0.012'
0271 10-SEP'91 71.2 0.894 0.0002 U 0.01 U 0.014 I 3.2 8 0.0024 I 0.005 U 270 ' 1.89 0.001 U 0.1 U 0.01 U 0."32
1181 18.I£P'87 29.0439 0.2596 0.0002 U 0.022 U 0.031 U 7.9 0.024 0.0076 U .51.3263 0.9591 0.01 U 0.024 U 0.02 U
1181 II-FEI.II 28.3999 0.3933 0.0002 U 0.022 U 0.2561 4.5 0.01 0.0016 U 42.4341 0.9228 0.01 U 0.024 U 0.02 U
1187 01'DEC-89 21.2 .132 .0002 U .1 U .0886 5.0 U .01 U .01 U 39 .987 .01 U .1 U .05 U .02 U
1187 IS'JIII'9O 30.3 0.0211 0.0002 U 0.1 U 0.168 5.0 U 0.01 U 0.01 U 45 0.894 0.01 U 0.1 U O.05.U 0.0294
1187 28'1IC)V.9O 30.1 0.0486 0.0002 U 0.0168' 0.115 2.42 IE 0.01 0.0033 I 40.3 E 0.918 0.002 U .0.024 I 0... 0.0332
1187 O6.I£P'91 19.1 0.016 0.0002 U 0.01 U 0.01 U 2.81 . 0.009 0.0081' 56 0.915 0.001 U 0.1 U 0.01 U 0.0122 .
1281 02'.P'87 6.5848 0.1233 0.0002 U 0.022 U 0.1084 J.5 0.005 U 0.0076 U 213.3128 0.2646 0.01 U 0.024 U 0.021
1281 26'fEI.II 7. IS 16 0.0447 0.0002 U 0.022 U 0.1154 1.3 0.002 J 0.0076 U 112.5999 0.2467 0.01 U 0.024 U 0.02 U
1287 21-AP!I-1I 7.5445 0.0078 0.0002 U 0.022 U 0.061 0.8 0.005 U 0.0016 U 179.5822 0.2582 0.005 U 0.036 U 0.0553
1287 26'.IUL.II 7.8634 0.0227 0.0002 U 0.022 U 0.0422 1.1 0.005 U 0.0016 U 193.4917 0.2735 0.01 U 0.036 U 0.02 U
1287 2O-.P'9O 6.55 0.001 U 0.0002 U 0.0124 . 0.004 U 0.934 I 0.01 UE 0.003 U 161 0.219 0.002 III 0.135' 0.002 U 0.003~ 8
I-Velue l... than Contract R8CJAlred Detection Llalt (CRDL) but arllter then Inatn88nt Detection Llalt (lDL)
--Dupllcete analysl. not Nlthln contro' ll.tt8
lJaAn8lyzed but not detected J"I' .~nt belOll detection lI.lt E-Eetl..ted Velue
-------
pe.e 110. 2
Ground Uater Olaaotved Metet Resutta
903 Pad Are.
Reautta reported In ~/t
YeU Dete "h.l... Antt8DnY Araenlc B.rh. BeryU 1111 CeciDha Cetch. Cealll8 thrallll8 Cobet t Copper Iron Leed L tthlll8
lkaber IMpt ed (At> (At> (Aa) (Be) (Be) (Cd) (C.) (Ca) (Cr) (Co) (Cu) (Fe) (Pb) (LI)
...... _a.... ........ ......... ......... ......... ......... ....... ....... ....... ........ ....... ....... ....... ....... .......
0171 29-1OV-89 .2 U .06 U .01 U .318 .005U .005 U 71.1 1.0U .01 U .05 U .025 U .403 .005 U .1 U
0171 23-fEB-9O 0.2 U 0.06 U 0.01 U 0.303 0.005 U 0.005 U 76.7 2.5 U 0.01 U 0.05 U 0.025 U 0.151 0.003 U 0.1 U
.0171 17'API-91 0.0544 B '0.0115 I 0.002 U 0.291 0.001 U 0.002 U 79 0.112 U 0.0082 B 0.003 U 0.0022 B 0.318 0.001 U 0.0684 B
0171 10'SEP-91 0.1 U 0.05 U 0.002 U 0.278 0.002 U 0.003 U 71.4 0.5 U 0.005 U 0.01 U 0.01 U 0.05 U 0.0016.B 0.05 U
027t -AtJG-86 0.1 U 0.05 U 0.002 U 0.1 U 11.005 U 0.005 U 84 0.1 U 0.01 U 0.11 0.025 U 53.4 0.088 U
0271 11-MAR-87 0.029 U 0.06 U 0.01 U 0.1175 0.005 U 0.005 U 65.6058 0.2 U 0.01 U 0.022 U 0.0063 U 0.9181 0.005 U
0271 09'API-87 0.029 U. 0.06 U 0.01 U 0.0748 0.005 U 0.005 U 66.4747 0.2 U 0.01 U 0.022 U 0.0063 U 0.0069 U 0.005 U
0271 21-""'-87 0.0643 0.06 U 0.01 U 0.0829 0.005 U 0.005 U 86.2693 0.2 U 0.01 U 0.022 U 0.0063 U 0.7071 0.019
0271 02-M-87 0.0367 0.02 U 0.003 " 0.0909 0.005 U 0.001 U 95.630 0.02 U 0.01 U 0.022 U 0.0169 0.0132 0.005 U
0271 26-FEB-88 0.029 U 0.02 U 0.005 U 0.1105 0.005 U 0.001 U 116.9765 0.02 U 0.01 U 0.022 U 0.0063 U 0.01n 0..005 U 0.07"
0271 21'API-88 0.0359 0.034 U 0.005 U 0.1058 0.001 U 0.005 U 179.8336 0.02 U 0.0288 0.022 U 0.0084 0.0996 0.005 U 0.07 J
0271 26-M-88 0.029 U 0.071 0.005 U 0.1196 0.001 U 0.005 U 201.1006 0.02 U 0.0134 0.022 U 0.0063 U 0.101 0.005 U
0271 08-AlJG-89 0.037" 0.05 U 0.1207 J 0.002 U 0.005 U 173.4174 0.009 U 0.029 U 0.004 U 0.035 U
0271 26'fEI-9O 0.2 U 0.06 U 0.01 U 0.2 U 0.005 U 0.005 U 90 2.5 U 0.01 U 0.05 U 0.025 U 75.2 0.003 U 0.1 U
YeU Dete "'onn 1118 Meng....e Mercury Not ybderuI Nlcttet Pote..11I8 Set8l\11I8 5 It ver Sodlll8 Stront 1118 TheU 1118 fin Vanedh. Zinc
IIUlllber IMpted (Me) (Me) (Hg) (No) (III) (Ie) (Se) (Ag) (lIa) (Sr) HI) (Sn) (V) (2n)
...... ....... ........ ......... ......... ......... ......... ......... ....... ....... ........ ....... ......... ....... ......... .......
0171 29-IOV-89 14.6 .121 .0003 .1 U .04 U 5.0 U .005 U .01 U 16.5 1.0 U .01 U .1 U .05 U .02 U
0171 23-fEI-9O 15.6 0.0992 0.0002 U 0.1 U 0.04 U 5.0 U 0.005 U 0.01 U 17.7 0.527 0.01 U 0.1 U 0.05 U 0.02 U
0171 17-APR'91 15.5 0.123 0.0002 U 0.003 U 0.004 U 1.56 BE 0.002 UN 0.0057 I 17.3" 0.534 0.001 I 0.0259 B 0.0067 I 0.0085 I
0171 10'SEP'91 14.8 0.095 0.0002 U 0.01 U 0.01 U 2.0 U 0.001 U 0.005 U 18 0.506 0.001 U 0.1 U 0.01 U 0.01 U
0271 -AUG-86 12.5 0.8 0.00024 0.192 0.04 U 2.2 0.018 0.02 135 0.57 0.01 U 0.05 U 0.04 U
0271 11-MAR'87 16.474 0.1551 0.0002 U 0.022 U 0.037 U 5.0 U 0.021 0.0076 U 187.0130 0.5942 0.01 U 0.024 U 0.04
0271 09'API.87 20.0582 0.0456 0.0002 U 0.022 U 0.037 U 5U 0.03 0.0076 U 187.6075 0.607 0.01 U 0.024 U 0.04
0271 21-."87 22.6418 0.0428 0.0002 U 0.022 U 0.037 U 5U 0.036 0.0076 U 195.6574 0.6492 0.01 U 0.024 U 0.0346
0271 O2,JUL -87 25.7632 0.0333 0.0003 0.022 U 0.037 U 2.6 0.026 0.0076 U 221.1795 0.8473 0.01 U 0.024 U 0.0351
0271 26-fEI-. 34.9517 0.1469 O;OOO2U 0.022 U 0.0478 2.7 0.03 0.0076 U 213.6941 1.0162 0.01 U 0.024 U 0.0209
0271 21-AN-88 45.8643 0.0946 0.0002 U 0.022 U 0.05 2.1 0.04 0.0076 U 234.7011 1.2316 0.01 U 0.036 U 0.0522
0271 . 26-JUL'1I 17.722 0.1636 0.0002 U 0.022 U 0.037 U 2.4 0.028 0.0076 U 259.5513 1.4711 0.01 U 0.036 U 0.0411
0271 08-AtJG-89 4J.6J86 0.1094 0.027 U 0.0364 I 0.004 U ZS:S.6J80 1.6067 0.034 U 0.008 U
0271 26-fll-90 24.1 0.93 0.0002 U 0.1 U 0.04 U 5.0 U 0.01 U . 0.01 U 236 0.71 0.01 U 0.1 U 0.05 U 0.02 U
I.V.tue te.. than Contract Required Detection LI.lt (CRDL) but greater than ln8t~t Detection LI.lt ClDL)
--Duptlcate anatyale not Mlthln controt tt.lt.
U8An8t ped but not detacted ".pr..ent bet. detection U.lt E-Iatl_ted Vat..
,,-acceptabte Mlth quatlflcattana V-Vat Id and acceptabte ."eJected
-------
hIe 110. 5
Ground Water Dissolved Metal Results
903 P8d Arel
Results reported In 88'1
Weu Date AIUlIIUI Antl8DnY Araenlc larlUl BeryU hn Cechh.. Celcll.. Cesll.. Chr.IUI Cobalt Copper Iron Le8d LlthlUl
lIusber SIIIIpI ed (AI) (AI) (As) (II) (Ie) (Cd) (CI) (Cs) (Cr) (Co) (Cu) (Fe) (Pb) (LI)
...... ....... ........ ......... ......... ......... ......... ....... ....... ....... ........ ....... ....... ....... ....... .......
1487 11 -"AII-" 0.0557 1 0.0151' 0.002 U 0.0771 1 0.001 U 0.002 U 46.3 E 0.076 U O.009J 1 O.OOJ U 0.002 U 0.0416' 0.001 UW 0.0852'
1487 15-APR-91 0.0457' O.OU' 0.002 U 0.0795 . 0.001 U 0.002 U 47.5 0.112 U 0.0068 8 0.003 U 0.0027 8 0.0183' 0.001 U 0.11
1487 05-UP-91 0.002 U 0.5 U 0.0027 8 0.112
1587 OHWI-II 0.0449 0.019 . 0.005 U 0.1807 O.ooJ J 0.001 U 117.2J22 0.02 U 0.031 0.022 U O.006J U 0.0285 0.005 U 0.1 U
1587 21-APR-II 0.0499 0.014 U 0.005 U 0.1561 0.001 U 0.005 U 125.8376 0.02 U 0.01 U 0.022 U 0.0115 0.0487 0.005 U 0.1 U
1587 OJ-AUG-89 O.OJ16 " 0.05 U O. U58 " 0.002 U 0.005 U 92.7531 0.009 U 0.029 U 0.0042 J 0.035 U
1587 04-DEC-89 .2 U .06 U .01 U .2 U .005 U .005 U 11J 2.5 U .01 U .05 U .025 U .1 U .OOJ U .1 U
1587 27-1IOV-90 0.0665 1 0.0261' 0.002 UN 0.156 . 0.001 U 0.002 U 120 0.076 U 0.0213 0.0044 8 0.0068 I 0.014 U 0.001 U 0.0055'
1587 15-AN-91 0.06J6' 0.014 8 0.002 U 0.142 . 0.001 U 0.002 U 105 0.112 U 0.0069 I O.ooJ U 0.0026' 0.0464 ~!. 0.001 U 0.0297 .
1687 10-S£P-87 0.029 U 0.02 U 0.005 U 0.061J 0.005 U 0.001 U 26.8178 0.02 U 0.01 U 0.022 U O.OO6J U 0.0069.. u.OO5 U O.OJ"
1687 1NItT-.7 0.0876 0.0354 20.5145 0.0278 0.022 U 0.0063 U 0.1371
1687 01-MAl-1I 0.0814 0.02 U 0.004 J 0.0786 0.005 U 0.001 U 18.482 0.02 U 0.01 U 0.022 U 0.0074 0.0644 0.005 U 0.05 J
1687 22-AN-II 0.0485 0.014 U 0.003 J 0.0456 0.001 U 0.005 U 24.7026 0.02 U 0.01 U 0.022 U 0.0063 U 0_0186 0.005 U 0.1 U
1687 10-AUG-II O.04JJ 0.014 U 0.005 U 0.028 0.001 U 0.005 U 26.4029 0.02 U 0.0114 0.022 U 0.0108 0.0219 0.005 U
Weu Dlte 118gnesl UI M__se Mercury Mol ybdenUI IIlckel Potl..IUI Selenlla SHver SodlUl StrontlUl ThlU IUI Tin Van8dIUi Zinc.
lIusber SIIIIpI ed (MI) (Mg) ("II) (No) (III) (Ie) (Se) (All) (III) (Ir) (II) (In) (V) (In)
...... ....... ........ ......... ......... ......... ......... ......... ....... ....... ........ ....... ......... ....... ......... .......
1487 "-"AII-" 17.5 E 0.001 U 0.0002 U 0.0083 . 0_004 U J.49 1 0.0099 S O.OOJ U 89.9 0.7 E O.OOJ U 0.011 U 0.0157' 0.0171'
1487 "-AN-" 18.2 0.001 U 0.0002 U 0.OOJ5 . 0.004 U 3.22 1£ 0.0111 0.0042 1 84.4 0.132 0.001' 0.021J 8 0.0152. 0.0066 I
05-UP'" 0.0002 U 0.01 U 0.0087 ' 0.751 0.001 U 0.1 U
1487
1587 01-MAl-1I 11 . 1265 O.OJ94 0.0002 U 0.022 U 0.OJ7 U 0.8 0.005 U 0.0424 11.9562 0.4859 0.01 U 0.024 U 0.0361
1587 21-AN-II 10.5472 0.0051 U 0.0002 U 0.022 U 0.017 U 0.7 0.005 U 0.0076 U 8.5874 0.428] 0.01 U 0.036 U 0.0712
1587 OJ-AUG-89 7.8672 0.002 U 0.027 U 0.022 U 0.004 U 9.6778 0.3557 0.014 U 0.008 U
1587 04'DEC-89 10 .015 U .0002 .1 U .04 U 5.0 U .005 U .01 U 10.6 .488 .01 U .1 U .05 U .02 U
1587 27-_-90 10.1 0.001 U 0.0002 U 0.0076 I 0.0068' 0.91 I 0.001 811 0.0076' 7.87 0.411 0.002 0.0101 . 0.0"" 0.011'
1587 15-AN-91 9." 0_001 U 0.0002 Ii 0.001.U 0.004 U 0.972 IE 0.002 UN 0.0054' 8.75 0.J9 0.001 &AI 0.0205' 0.0075' 0.0207
1687 10-SE'-'7 1.7J09 0.0051 U 0.0002 U 0.0367 0.017 U 5.6 0.005 U 0.0076 U 61.1752 0.2202 0.01 U 0..024 U 0.02 U
1687 17-OCT-87 2.644 0.0051 U 0.025 . 0.OJ7 U 0.0076 U 60.8289 0.2522 0.0256 0.D2 U
1687 01-MAl-1I J.5174 0.0051 U 0.0002 U 0.0295 0.0]7 U 8.1 0.002 J 0.0076 U 67.622 0.28J4 0.01 U 0.024 U 0.02 U
1681 22-AN-II 4.788J 0.0051 U 0.0002 U 0.022 U 0.0]7 U 4.2 0.004 J 0.0076 U 66.435J 0.3042 0.01 U 0.036 U 0.02 U
1687 10-AUG-II 4.9487 0.0072 ".0002 U 0.0225 0.OJ7 U 4 0.005 U 0.0076 U 72.4248 0.2867 0.01 U 0.036 U 0.02 U
'-Velue I... than Contrlct Required Detection LI.lt (CRDl) but grllter than lnatr~t Oetectlon LI.lt (lDU
--Duplicate analysl. not within control 11.ltl
U-Anelyzed but not detected "-Pr..ent belON detection 1I.lt E-Estl..ted Value
-------
Pl8e 110. 4
Ground Weter Ol..olved Metet ae.utt.
903 Ped Aree
ae.utt. reported In lilt
We" Oet. Ah.I'" Ant f 8IIf1Y Arsenic l.rfU8 .eryH 118 CedllfI8 C81c:IU8 Ce.IU8 Chramh.. Cabelt Copper Iron Leed llthfI8
IIlIIb8r ~ted (AU . (At) (AI) (8e) (8.) (Cd) (Ce) (C.) (Cr) (Co) (Cu) (fe) (Pb) (LI)
..-.. ....... ........ ......... ......... ......... ......... ....... ....... ....... ........ ....... ....... ....... ....... .......
1287 28-IICJV-90 o.om I 0.0138' 0.002 U 0.0309 I 0.001 U 0.002 U 27.2 0.076 U 0.0058 I 0.003 U 0.002 U 0.0146 I 0.001 till 0.0578'
1287 09-SEP-91 0.1 U 0.05 U 0.002 U 0.1 U 0.002 U 0.0086 37.9 0.5 U 0.005 U 0.01 U 0.01 U 0.05 U 0.0014 I 0.0711'
1487 01-IEP-87 0.5102 0.02 U 0.005 U 0.9321 0.005 U 0.001 U 408.4416 0.02 U 0.0399 0.022 U 0.009 0.0069 U 0.005 U 0.05"
1487 13'OCT.87 1.1972 0.029 0.005 U 0.1196 0.001 .. 0.001 U 81.235 0.02 U 0.0382 0.022 U 0.009 0.0599 0.004" 0.04"
1487 01-MAl-88 0.1598 0.02 U 0.005 U 0.0297 0.005 U 0.001 U 7.5573 0.02 U 0.0207 0.022 U 0.0118 0.0366 0.005 U 0.06"
1487 22-APl-1I 0.1141 0.034 U 0.005 U 0.0269 0.001 U 0.005 U 6.0019 0.02 U 0.0252 0.022 U 0.0064 0.0172 0.005 U 0.06 .I
1487 O9-AUG-II 0.1238 0.034 U 0.005 U 0.0298 0.001 U 0.005 U 7.7025 0.02 U 0.01 U 0.022 U 0.009 0.0131 U 0.005 U
1487 26'OCT'1I 0.1008 0.034 U 0.005 U 0.0]51 0.001 U 0.005 U 10.3618 0.02 U 0.02]2 0.022 U 0.0063 U 0.012 0.005 U
1"7 25-JAII-89 0.0683 .I .0.05 U 0.001 U 0.0684 .. 0.002 U 0.005 U 27.1815 0.005 U 0.0184 0.029 U 0.0048 .I 0.0]5 U 0.001 U
1487 25-APl-89 0.0228 .I 0.05 U .0016 .I 0.0238 .. 0.002 U 0.005 U 7.573] .2 U 0.0179 0.029 U 0.0084 .I 0.035 U .001 U
1487 03-AUG-89 0.0605 .I 0.05 U 0.0537 .I 0.002 U 0.005 U 14.4856 0.0109 0.029 U 0.004 U 0.035 U
1487 25'''AII'90 0.084 U 0.022 U 0.002 U 0.085 8 0.001 U 0.003 U 56 0.0035 8 0.004 U 0.005 U 0.044 U 0.003 UII
1487 .18-SEP-90 0.0363 8 0.007 U 0.002 8 0.0817 0.001 U 0.002 U ]7.] E 0.092 U 0.005 U 0.00] U 0.002 U 0.014 U 0.001 UII 0.1
1487 20-1ICJV-90 0.0324 8 0.022 U 0.001 U 0.0897 I 0.001 U 0.005 U 45.8 0.5 U 0.004 U 0.004 U 0.005 U 0.006 I 0.001 U 0.103
We" Oet. ....,.. I III H8n8lM8e Mercury. Mot ybderue Nickel PoU,.flll Selenflll Sliver SodlUl S t rontllll Thl" 1111 Tin Venedllll Zinc
IIlIIb8r 18IIpted (III) (H8) (H8) (Mo) (Nt) (I:) (S.) (A8) (Ne) (5r) (n) (5n) (V) (In)
...... ....... ........ ......... ......... ......... ......... ......... ......- ....... ........ ....... ......... ....... ......... .......
1287 28-1ICJV-90 6.09 0.001 U 0.0002 U 0.013 8 0.004 U 1.0 IE 0.001 IW 0.003 U 147 E 0.201 0.002 U 0.007 U 0.002 U 0.0261
1287 09-SEP'91 7.96 0.005 U 0.0002 U 0.01 U 0.01 U 2.0 U 0.0017 8 0.005 U 137 0.266 0.001 U 0.1 U .0.01 U . 0.0503
1487 01-SEP-87 0.0295 0.0051 U 0.0002 U 0.022 U 0.037 U 31 0.005 U 0.0076 U 96.2131 1.7076 0.01 U . 0.024 U 0.02 U
1487 . 13.OCT .87 0.1458 0.0051 U 0.0002 U 0.022 U 0.037 U 12.] 0.011 0.0076 U 76.9625 1.4579 0.01 U 0.0915 0.02 U
1487 01'MAI.II 1.3191 0.0051 U 0.0002 U 0.022 U 0.037 U 8 0.012 0.0076 U 71.9638 0.3449 0.01 U 0.0686 0.0295
1487 2Z'API.88 4.038 0.0051 U 0.0002 U 0.022 U 0.037 U 7.9 0.013 0.0076 U 84.0615 0.3095 0.01 U 0.041Z 0.02 U
1487 O9.AUtI-88 7.5092 0.0051 U 0.0002 U 0.022 U 0.037 U 6.7 0.014 0.0076 U 85.1056 0.]517 0.01 U 0.036 U 0.0255
1487 Z6'OCT.88 8.5727 0.0051 U O.oooZ U 0.022 U 0.037 U 7.] 0.005 U 0.0076 U 11.897 0.4643 0.01 U 0.036 U 0.029]
1487 25'JAI-89 12.9274 0.002 U 0.0002 U 0.027 U 0.022 U 4.75 . .0166 0.004 U 81.7647 0.6635 0.001 U 0.034 U 0.0109 .I
1487 25'API-89 10.3762 O.DOZ U .0002 U 0.027 U 0.022 U 5.33 0.014 0.004 U 89.4522 0.4122 .001 0.034 U 0.008 U
1487 0)'_,89 11.8419 O.DOZ U 0.027 U 0.022 U 0.004 U 80.3288 0.4839 0.034 U 0.008 U
1487 ZS-JAI'90 17.6 O.DOZ.. 0.0002 U 0.001 U 3.4] 8 0.0122 0.00] U 81.1 0.004 UII O.OZ19' 0.0141 8
1487 18'IEP,90 14.1 E 0.001 U 0.0002 U 0~0074 . 0.004 U 3.68 . 0.011 0.003 U 83.7 E 0.621 E 0.003 U 0.0227 8 0.0146' 0.0024'
1487 2O'1OV'90 17.4 0.0014 . 0.0002 U 0.009 U 0.009 U 3.Z1' 0.0101 0.00] U 86.8 0.713 0.002 U 0.0345 . 0.0129' 0.0183'
I-V.lue I... then Contrect ...,Ired Oetectfon LI.lt (canl) but 8re.ter then lnat~t Detection LI.lt (l0l)
--oupllcete enatyaf. not wlthtn control 11.ltl
U.An8tyzed but not detected ".Pr..ent below detection i ".It EaE.tl..ted v.tue
-------
Pag8 110.
Ground Water DI.solyed Metal Results
Mound Aree
Results reported In 88/1
wall Dlte AlUlI... Antl8Ol1y Ar.anlc 88rl.. 8erylll UII CedillUI Cilch. CeslUl Chr..IUI Cobalt Copper Iron Lead LlthlUl
."'r SlIIpled (AI) (AI) (As) (8.) (Ia) (Cd) (CI) (Cs) (Cr) (Co) (Cu) (Fa) (Pb) (ll)
...... ....... ........ ......... ......... ......... ......... ....... ....... ....... ........ ....... ....... ....... ....... .......
0174 -AUQ-86 0.1 U 0.05 U. 0.002 U 0.1 U 0.0097U 0.005 U 105 0.1 U 0.01 U 0.05 U 0.02 U 0.03 U 0.005 U
0174 IHWI-87 0.029 U 0.06 U 0.01 U 0.1854 0.005 U 0.005 U 107.6955 0.2 U 0.01 U 0.022 U 0.0063 U 0.0069 U 0.005 U
0174 22-"'Y.87 0.0655 0.06 U 0.01 U 0.1781 0.005 U 0.005 U 115.7480 0.2 U 0.01 U 0.022 U 0.0063 U 0.0333 0.008
0174 23.JUL-87 0.029 U 0.02u 0.005 U 0.183 0.005 U 0.001 U 105.9m 0.02U 0.01 U 0.022 U 0.0012 0.0069 U 0.005 U
0174 22-OC'.87 0.0401 0.02 U 0.005 U 0.1829 .0.005 U 0.001 U 88.1974 0.02 U 0.0134 0.022 U 0.0138 0.0512 0.007 0.01 J
0174 04-MAlt-88 0.029 U 0.02 U 0.005 U 0.1743 0.005 U 0.001 U 93.5185 0.02 U 0.01 U 0.022 U 0.0063 U 0.0148 0.005 U 0.1 U
0174 29-AP.-88 0.0293 0.034 U 0.005 U 0.1657 0.001 U 0.005 U 94.0876 0.02 U 0.01 U 0.022 U 0.0063 U 0.0096 0.005 U 0.1 U
0174 16-AUQ.88 0.029 U 0.034 U 0.005 U 0.1812 0.001 U 0.005 U 95.1219 0.02 U 0.01 U 0.022 U 0.0148 0.0141 0.005 U
0174 04-IIQV-88 0.0]36 0.0342 0.005 U 0.1762 0.001 U 0.005 U 95 .6792 0.02 U 0.01 U 0.022 U 0.0063 U 0.0114 0.005 U
0174 G4-MY-89 0.0349 J 0.05 U 0.001 U 0.1705 J 0.002 U 0.005 U 87.1258 0.2 U 0.009 U 0.029 U 0.004 U 0.0]5 U 0.001 U
0174 17-NOV.89 .2 U .06 U .01 U .2 U .005 U .005 U 76.9 2.5 U .01 U .05 U .025 U .1 U .003 U .1 U
0174 09. FEI.90 .2 U .06 U .01 U .2 U .005 U .005 U 92.2 1.0 U .01 U .05 U .025 U .1 U .005 U .1 U
0174 05-MAY-90 0.0221 U 0_0176 U 0.0016 U 0.179 . 0.0026 U 0.0036 U 96 0.0049 U 0.0044 U 0.0063 I 0.0246 B 0.0013 U 0.0098'
0174 15-NOV-90 0.0389. 0.022 U 0.001 U 0.167 . 0.001 U 0.005 U 98.9 0.5 U 0.004 U 0.004 U 0.005 U 0.003 U 0.001 U 0.01 U
wall Olta "'811111 UI "lnII...e Mercury Mol ybderue IIlckal Pot.s.IUII SalanlUl Silyar SodlUl Strontl.- 'hIll I.- . Tin V8n8dI.- Zinc
IIl.IIIbar SlIIpled ("g) ("II) (HI) (Mo) (III) (Ie) (5e) (A.) (III) (Sr) (Tl) (Sn) (V) (In)
...... ........ ......... ......... ......... ......... ......... ....... ....... ........ ....... ......... ....... ......... .......
0174 -AUQ-86 32 0.34 0.0002 U 0.1 U 0.04 U 3.8 0.002 U 0.01 U 106 0.83 0.01 U 0.05 U 0.02 U
0174 I1.MAIt.87 14.7324 0.0051 U 0.0002 U 0.022 U 0.037 U 5U 0.005 U 0.0076 U 8.7453 0.5391 0.01 U 0.024 U 0.06
0174 22-"'Y.87 15.2494 0.0111 0.0002 U 0.022 U 0.037 U 5U 0.005 U 0.0076 U 13.1215 0.5225 0.01 U 0.024 U 0.0335
0174 23-JUL-87 13.5031 0.006 0.0002 0.022 U 0.037 U 0.8 0.005 U 0.0076 U 9.0118 0.5248 0.01 U 0.024 U 0.02 U
0174 22-OC'-87 13.JOI1 0.0129 0.0002 U 0.022 U 0.037 U 0.9 0.005 U 0.0076 U 9.2626 0.4916 0.01 U 0.024 U 0.02
0174 04-MAlt-88 12.1267 0.0059 0.0002 U 0.022 U 0.037 U 0.6 0.005 U 0.0076 U 8.1078 0.4881 0.01 U 0.024 U 0.0824
0174 29~APR.88 13.0194 0.0051 U 0.0002 U 0.022 U 0.037 U 1.3 0.005 U 0.0076 U 7.6229 0.48 0.01 U 0.036 U 0.02 U
0174 16-AUQ-88 13.1248 . 0.0143 0.0002 U 0.022 U 0.037 U 0.8 0.005 U 0.0076 U 9.2674 0.4925 0.01 U 0.036 U 0.0486
0114 04-NOV.88 13.4112 0.0245 0.0002 U 0.022 U 0.037 U 0.5 U 0.005 U 0.0076 U 10.6527 0.5475 0.01 U 0.036 U 0.0207
0174 04.MY.89 12.9147 0.008 J .0002 U 0.027 U 0.022 U 0.12 J 0.001 U 0.004 U 8.2184 0.4941 0.001 U 0.034 U 0.008 U
0114 17-I1OV.89 13.1 .0168 .0002 U .1 U .04 U 5.0 U .005 U .01 U 8.66 .458 .01 U .1 U .05 U .0228
0174 09-FEI-90 12.6 .015 U .0002 .1 U .04 U 5.0 U .005 U .01 U 7.98 1.0 U .01 U .1 U .05 U .02 U
0174 05-MY-90 14.8 0.0096 . 0.0002 U 0.0174 U 0.0055 U 0.71' 0.0012 U 0.0044 U 8.23 0.524 . 0.0011 U 0.0232 U 0.0023 U 0.009 U
0174 15.1IOV.90 13.9 0.0165 0.0002 U 0.009 U 0.009 U 1.88 . 0.002 U 0.0065' 8.75 0.455 0.002 U 0.03 U 0.0086' 0.0359
'-Velue ta.. than Contract .equlred Datectlon Llalt (CRDl) but graetar than InatrUlll\t Detection Llalt (l0l)
--Oupllcete analysl. not within control 11.lt.
U-An81yzad but not detected J""r..ant bel- detection 11.lt E-£stl_ted VIlue
-------
p... I/o. 6
Ground Watlr Olaaolved Metal Ilauita
903 Pad Area
Ilauita reported In 81'1
Well Dati AIWlI... Antl8DnY Aflenlc BarlWi Beryll h.. CIdIIIIII CalclWl CealWi Chr_11II Cobal t Copper Iron lead lIthllll
I1l88r S~lad (At) (At) (AI) (Ba) (Be) (Cd) (Ca) (ta) (Cr) (Co) (Cu) (FI) (Pb) (ll)
'...... ....... ........ ......... ......... ......... ......... ....... ....... ....... ........ ....... ....... ....... ....... .......
1687 31-OCT-88 0.0474 0.034 U 0.005 U 0.0423 0.001 U 0.005 U 25.593 0.02 U 0.0121 0.022 U 0.0063 U 0.0131
1687 07-FEB-89 0.0455 J 0.05 U .0028 .. 0.0442 J 0.002 U 0.005 U 29.3102 0.005 U 0.0123 0.029 U 0.004 U 0.0652 J 0.001 U
1687 02-MAY.89 0.0296,1 0_05 U .0028 .. 0.0447 J 0.002 U 0.005 U 28.8328 .2 U 0.009 U 0.029 U 0.004 U 0.035 U .001 U
1687 03-AUG-89 0.026" 0.05 U 0.0285 J 0.002 U 0.005 U 30.392 0.0097 J 0.029 U 0.0397 0.035 U
1687 06.1IOV-89 .2 U .06 U .01 U .2 U .005 U .005 U 29.8 2.5 U .01 U .05 U .025 U .1 U .003 U .1 U
1687 1NWt-9O 0.035 U 0.026 U 0.002 U 0.0551 I 0.001 U 0.002 U 31.3 0.05 U 0.005 U 0.004 U 0.005 U 0.0102 I 0.0011 I 0.0345 I
1687 28-1IOV-9O 0.0287 1 0.0097 I 0.002 U 0.0675 1 0.001 U 0.002 U 31 0.076 U 0.005 U. 0.003 U 0.002 U 0.014 U 0.001 tal 0.0308 I
1687 09-"AII-'1 0.0288 I 0.0153 I 0.002 I 0.0704 0.001 U 0.002 U 31.5 0.1 . 0.0057 1 0.003 U 0.0043 1 0.0092 1 0.001 U 0.0286'
1687 16-API-'1 0.0385' 0.0084 1 0.002 U 0.0775 B 0.001 U 0.002 U 33.5 0.112 U 0.005 U 0.003 U 0.002 U 0.0127 1 0.001 U 0.0531 1
1687 05-5Ep.91 0.002 U 0.5 U 0.0017' 0.05 U
Well Date Magneallil Mang8nl1l Mercury Mol vtJdenUI I/Ickel Poteullil 5elenllll Sliver Sodllll 5trontllll Thai I IWI Tin Vanadllll Zinc
lI..m.r S~lad ("8) ("8) (H8) ("0) (III) (K) (5e) (A8) (lIa) (Sr) (Tt) (Sn) (V) un)
...... ....... ........ ......... ......... ......... ......... ......... ....... ........ ........ ....... ......... .....c. a........ .......
1687 31-OCT-88 4.9047 0.0051 U 0.0002 U 0.0228 0.037 U 4 0.005 U 0.0076 U 71.7637 0.3337 0.01 U 0.036 U 0.0242
1687 07.FEI-89 6.0696 0.0063 J 0.0002 U 0.027 U 0.022 U 3.25 J .0014 J 0.004 U 73.5594 0.3652 0.001 U 0.034 U 0.017 J
1687 02-MAY-89 5.9691 0.0057 J .0002 U 0.027 U 0.022 U 3.15 J .001 U 0.004 U 70.4771 0.3453 .001 U 0.034 U 0.008 U
1687 03-AUG-89 6.5807 0.0121 J 0.027 U 0.022 U 0.004 U 76.0211 0.3603 0.034 U 0.0169 J
1687 06-IIOV-89 5.73 .0692 .0002 U .1 U .04 U 5.0 U .005 U .01 U 66 .302 .01 U .1 U .05 U .0315
1687 17-MAR-9O 6.24 0.0128 . 0.0002 U 0.035 U . 0.006 U 2.89 B 0.003 U 0.006 U 76.2 0.38 0.001" 0.025 U 0.006 U 0.0171 .
1687 28-1IOV-9O 6.89 0.0034 . 0.0002 U 0.0177 1 0.004 U 3.12 BE 0.002 IY 0.003 U 67.9 E 0.358 0.002 U 0.007 U 0.002 U 0.0235
1687 09-JAII-'1 6.'7 0.0018 I 0.0002 U 0.0232 I 0.004 U 2.74 B 0.002 I 0.003 U 78.4 0.377 E 0.001 U 0.0199 1 0.0044' 0.0144 I
1687 16.API.'1 7.45 0.0022 I 0.0002 U 0.0122 I 0.004 U 2.92 IE 0.002" 0.003' 78.6 0.395 0.001 U 0.011 U 0.003" 0.009),
1687 05.IE'-'1 0.0002 U 0.0129 I 0.001 U 0.379 0.001 U 0.1 U
I-Value I..a thin Contract .equlrad Dltectlon lI.lt (CIDl) but greatlr than lnatr~t Detection lI.lt (lDl)
*aOupilcata ....Iyala not within control II.lta
U-AnalYlad but not detectad ""r..ent balON detection 1I.lt
AaAccept8bl. with quallflcatlona V-Valid and accept8bl.
E-Eatl_tad Value
-------
hIe 110. 3
Ground Water Ol.sotved Matat Aelults
Mound Area
Rasutta reported In 88/l
waH Data AtUlI... Ant 18III'IY Araenlc 8ariUl 8aryH 118 C_IUI CalciUl CellUi Chrcnh.. Cobst t Copper Iron Lead LlthlUl
I1l8Ibar IMpt ed (At) (At) (Aa) (Ba) (8a) (Cd) (Ca) (Ca) (Cr) (Co) (Cu) (Fa) (Pb) CLI)
...... ....... ........ ......... ......... ......... ......... ....... ....... ....... ........ ....... ....... ....... ...11:. .......
2087 ONWI-88 0.2556 0.02 U 0.007 0.0246 0.005 U 0.001 U 18.8844 0.02 U 0.01 U 0.022 U 0.007 0.0544 0.005 U 0.1 U
2387 2NICT-87 0.1725 0.1632 94.3186 0.0676 0.022 U 0.0063 U 0.1942
2587 O).""R-88 0.0969 0.02 U 0.005 U 0.1949 0.005 U 0.001 U 130.1240 0.02 U 0.01 U 0.022 U 0.0063 U 0.0335 0.005 0.1 U
2587 28."'A-88 0.029 U 0.054 U 0.005 U 0.1625 0.001 U 0.005 U 115.0052 0.02 U 0.01 U 0.022 U 0.0063 U 0.0135 0.005 U 0.1 U
2587 12-AUG'88 0.029 U 0.054 U 0.005 U 0.1558 0.001 U 0.005 U 115.5801 0.02 U 0.01 U 0.022 U 0.0153 0.0184 0.005 U
2587 04-1ICJV-88 0.029 U 0.014 U 0.005 U 0.1695 0.001 U 0.005 U 120.6259 0.02 U 0.01 U 0.022 U 0.0063 U 0.0258 0.005 U
2587 07-FE8-89 0.0192 J 0.05 U 0.001 U 0.1731 J 0.002 U 0.005 U 118.1852 0.005 U 0.009 U 0.029 U 0.004 U 0.035 U 0.001 U
2587 04-",,'-89 0.0J6J J 0.05 U 0.001 U 0.1656 .I 0.002 U 0.005 U 111.1179 0.2 U 0.009 U 0.029 U 0.004 U 0.035 U 0.001 U
2587 04-0EC-89 .2 U .06 U .01 U .2 U .005 U .005 U 115 2.5 U .01 U .05 U .025 U .1 U .003 U .1 U
2587 20-FE8-9O 0.2 U 0.06 U 0.01 U 0.2 U 0.005 U 0.005 U 126 2.5 U 0.01 U 0.05 U 0.025 U 0.1 U 0.003 U 0.1 U
2587 01'JUII-9O 0.2 U 0.06 U 0.01 U 0.2 U 0.005 U 0.005 U 119 0.1 U 0.01 U 0.05 U 0.025 U 0.1 U 0.003 U 0.1 U
2587 09-1ICJV-9O 0.0852 8 0.03 U 0.002 U 0.163 8 0.001 U 0.005 U 118 0.2 tAl 0.01 U 0.02 U 0.0104 1 0.0277 B 0.002 tAl 0.005 U
2587 08-MAl-91 0.0596 1 0.008 U 0.002 UU 0.181 1 0.001 U 0.002 U 119 O.O"~; 0.005 U 0.003 U 0.002 U 0.0245 1 0.001 tAl 0.0048 1
2587 19-",a-91 0.0198 1 0.006 U 0.002 U 0.186 1 0.001 U 0.002 U 128 0.1\. " 0.003 U 0_005 U 0.011 U 0.007 U* 0.001 U O.oo~ U
waH Data ...... 118 l18n8anaaa Marcury Mot ybderuI IIIckat potaaaiUl SateniUl SHvar SodiUl ItronttUi ThaHIUI Tin VanadiUl Zinc
IIl8Ibar S8IIpt ed (Nt) (Mg) (Hg) (Mo) (III) (I() (5.) (Ag) (III) (Ir) CTt) (In) (V) CZn)
...... -..... ........ ......... ......... ......... ......... ......... ....... ....... ......--. ....... ......... ....... ......... .......
2087 07-MAl-88 0.0542 0.0051 U 0.0002 U 0.057 0.037 U 28 0.004 J 0.0076 U 84.4416 0.4473 0.01 U 0.0377 0.0252
2587 U-OCT-87 12.8861 0.2422 0.022 U 0.037 U 0.0076 U 8.8855 0.5299 0.0282 0.0501
,
2587 O3-MAA-88 15.8849 0.1289 0.0002 U 0.022 U 0.037 U 1.7 0.005 U 0.0076 U 9.6792 0.6205 0.01 U . 0.024 U 0.02 U
2587 28-APR-88 15.4011 0.072 0.0002 U 0.022 U 0.0558 1.6 0.005 U 0.0076 U 8.0918 0.5218 0.01 U 0.036 U 0.0221
2587 12-AUG-88 12.9021 0.011~ 0.0002 U 0.022 U 0.057 U 2 0.005 U 0.0076 U 9.5551 0.5"2 0.01 U 0.036 U 0.054
2587 04-1ICJV-88 12.9895 0.0118 0.0002 U 0.022 U 0.037 U 1.2 0.005 U 0.0076 U 10.9816 0.605 0.01 U 0.036 U 0.0237
2587 07-'EI-89 12.94" 0.0045 .. 0.0002 U 0.027 U 0.0147" 1.65" 0.0011 .I 0.004 U 9.5868 0.5" 0.001 U 0.014 U 0.0082 .I
2587 O4-MA'-89 12.9947 0.0046 .. .0002 U 0.027 U 0.022 U 1.66 .. 0.001 U 0~004 U 10.2186 0.5537 0.001 U 0.034 U 0.008 U
2587 04-0IC-89 15.4 .0165 _0002 U .1 U .0492 5.0 U .005 U .01 U 9.B .6Z2 .01 U .1 U .05 U .02 U
2587 20-'11-90 14.5 0.015 U 0.0002 U 0.1 U 0.04 U 5.0 U 0.005 U 0.01 U 9.19 0_581 0.01 U 0.1 U 0.05 U 0.02 U
2587 01'JUII-9O 15.9 0.015 U 0.0002 U 0.1 U 0.04 U 5.0 U 0.005 U 0.01 U 10.6 0.548 0.01 U 0_1 U 0.05 U 0.064
2587 09-1ICJV-9O 12-7 0.002.1 0.0002 U 0.01 U 0_02 U 1.11 1 0.004 UU 0.005 U 10.2 0.54 0.002 U 0.02 U 0.01 U 0.0366
2587 08-MAA-91 15.9 0.0015 1 0.0002 0.003 U 0.004 U 1.J BE 0.002 UII 0.00' U 10.1 0.55 0.001 U 0.011 U 0.0054 8 0.0084 1
2587 19-APR-91 14.1 0.001 U 0.0002 U 0.002 U O.OOJ U 1.22 1 0.002 U 0.002 U 11.5 0.574 0.001 UII 0.01 U 0.002 U 0.0556
I-Value t... than Contract a.,.,Ired Oatactlon LI.lt (CRDL) but gr.atar than Inatl'Ullnt Datactlon LI.lt (l0L)
*-oupllcate anatyall not within controt tl.ltl
U-An81yz8d but not detect8d J.pr..ant balCltl detect Ion Ualt E-Eatl..ted Value
-------
Page 110. 2
GrCMnt ".ter DI880lved Metal Reaul'ta
MCMnt Ara.
Results reported In -ell
lieU Date Ah.,... Antl80fty Arsenic Barllll Beryllllll Cechlun Calch.. CeslUl ChrC81111 Cobalt Copper Iron Leed LI th I III
.
I1l8IIer S88pled (AU (AU (AI) (BI) . (Be) (Cd) (Ca) (Cs) (Cr) (Co) (Cu) (Fe) (Pb) Uf)
...... ....... ........ ......... ......... ......... ......cca -,....1:8 ....... ....... ........ ....... ....... ....... ....... .......
0174 10-MAY-91 0.0378 0.0083 8 0.002 U 0.169 8 0.001 U 0.002 U 89.9 0.17 8 0.0038 8 0.003 U 0.011 U 0.007 U* 0.001 U 0.0059 8
0174 15'AUG-91 0.0446 8 ,0.008 U 0.002 U 0.109 BE 0.001 U 0.001 B 58.3 0.032 U 0.009 B 0.002 U 0.0073 B 0.002 U 0.001 U 0.006 8
1787 06.1KJV-87 0_0306 0.1587 93.1877 0.0109 0.022 U 0.4235 0.0523
1787 04-MAR-88 0.0386 0.02 U 0.005 U 0.1539 0.005 U 0.001 U 112.4856 0.02 U 0.01 U 0.022 U 0.4122 0.0229 0.005 U 0.1 U
1787 29-AJOR-88 0.0315 0.034 U 0.005 U 0.1113 0.001 u 0.005 u 100.2637 0.02 U 0.01 U 0.022 U 0.0243 0.012 0.005 U 0.1 U
1787 16-AUG-88 0.029 U 0.034 U 0.005 U 0.1194 0.001 U 0.005 U 108.9453 0.02 U 0.01 U 0.022 U 0.0491 0.0227 O.OO4J
1787 04-IiOv-88 0.0348 0.034 U 0.005 U 0.1392 0.001 U 0.005 U 116.4230 0.02 U 0.01 U . 0.022 U 0.0311 0.0115 0.005 U
1787 07-FE8-89 0.015 U 0.05 U 0.001 U 0.1175 J 0.002 U 0.005 U 103.1198 0.005 U 0.009 U 0.029 U 0.0322 0.0352 J 0.001 U
1787 04-MA'-89 0.0212 J 0.05 U 0.001 U 0.1224 J 0.002 U 0.005 U 105.4508 0.2 U 0.009 U 0.029 U 0.0161 J 0_035 U 0.001 U
1787 01-1KJV-89 .2 U .06 U .01 U .2 U .005 U .005 U 117 1.0U .01 U .05 U .0268 .1 U .005 U .1 U
1787 06.1KJV.9O 0.07'94 8 0.022 U 0.001 U 0.154 B 0.001 U 0.005 U 136 0.5 U 0.004 U 0.004 U 0.005 U 0.0263 8 0.001 U 0.01 U
1787 1]'M'-91 0.0752 8 0.0395 8 0.002 U 0.13 8 0.001 U 0.002 U 111 0.112 U 0.0045 8 0.003 U 0.011 U 0.0403 8 0.001 tal 0.0046 I
1787 19-AUG-" 0.0615 8 0.008 U 0.002 U 0.126 BE 0.001 U 0.001 U 109 0.04 8 0.0095 8 0.002 U 0.0043 8 0.002 U 0.001 U 0.0055 I
1887 oa-MAR-88 0.0879 0.02 U 0.003 J 0.1084 0.005 U 0.001 U 12.326 0.02 U 0.0118 0.022 U 0.0379 0.0631 0.005 U 0.1 U
"aU Date Magnalllll Mang....e Mercury Mol ybderuI IIIJ:kel Pot"lllII salenllll 5 Il ver Sod I III strontllll Thai I 1111 Tin Vanedllll Zinc
I1l8IIer 88111pled (Mg) (Mg) (H8) (No) (III) (Ie) (Sa) (AI) (lIa) (Sr) (TU (In) (V) (In)
a..... ....... ......- ......... ......... ......... ......... ......... ....... ....... ........ ......... ....... ......... .......
0174 10-MAY-91 13.3 0.0097 I 0.0002 U 0.002 U 0.003 U 0.654 . 0.002 U 0.002 U 8.56 0.48 0.001 UII 0.01 U 0.002 U 0.0126 .
0174 15-AUG-91 8.42 0.007 8 0.0002 U 0.003 U 0.003 U 0.48 . 0.001 III 0.003 I 5.37 0.319 0.002 U 0.014 U 0.0046 I 0.009 I
1787 06-1KJV-87 13.3333 1.2694 0.022 U 0.6174 0.0076 U 28.5863 0.5982 0.024 U 2.5552
1787 04-MAR-88 12.7983 0.1831 0.0002 U 0.022 U 0.521 7 0.005 U 0.0076 U 22.361 0.5903 0.01 U 0.024 U 1.5316
1787 29-.R'88 11_0176 0.1274 0.0002 U 0.022 U 0.2815 5.2 0.005 U 0.0076 U 17.8911 0.4885 0.01 U 0.036 U 0.1802
1787 16'AUG-88 10.0232 0.0979 0.0002 U 0.022 U. 0.2888 3.9 0.005 U 0.0076 U 24.3427 0.4557 0.01 U 0.036 U 0.14
1787 04-IIOV'88 10.1m 0.0424 0.0002 U 0.022 U 0.0767 3.4 0.005 U 0.0076 U 24.3438. 0.5284 0.01 U 0.036 U 0.1056
1787 07-FEI-89 9.4357 0.0288 0.0002 U 0.027 U 0.0536 2.85 J 0.001 U 0.004 U 26.6036 0.4518 0.001 U 0.034 U 0.0579
1787 04-MAY-89 9.4895 0.0025 .. .0002 U 0.027 U 0.0466 2.64 J 0.001 U 0.004 U 16.490 0.4517 0.001 U 0.034 U 0.0267
1787 01-1IOV-89 10.9 .015 U .0002 U .1 U .25 5.0 U .005 U .01 U 14.5 1.0 U .01 U .1 U .05 U .02 U
1787 06-1IOV-9O 11.6 0.0047 I 0.0002 U 0.009 U 0.009 I 2.6 I 0.0027 I 0.0077. 17.2 0.446 0.002 U 0.0517 I 0.01 I 0.0045 I
1787 13'MAY-91 9.81 0.00Z6 I 0.0002 U 0.0075 I 0.0076 I 1.69 I 0.001 U 0.002 U 14.8 0.441 0.001 tal 0.0888. 0.002 U 0.0325
1787 19-AUG-91 9.1 0.001 U 0.0002 U 0.0055 I 0.0104 I 1.78 0.001 8 .0.002 U 14.3 0.438 0.002 U 0.014 U 0.0055 I 0.0098 8
1887 08'NAI-88 1.1415 0.1154 0.0002 U. 0.0286 0.0661 0.8 0.003 J 0.0103 22.8139 . 0.1107 0.01 U 0.024 U 0.0279
a-Value I... than Contract Required Detection U.lt (CRDL) but ,reater than lnatr~t Detection Lt.lt (lOL)
*.oupllc8t8 analysl. not within control 11.ltl
U-An8l yzed but not detected J-pr..ent betow detection tt.1t E-Estl..tad Value
-------
PI.I No.
Ground Water Dissotved Metlt Results
Eest Trenche. Arel
Results reported In 88/1
Well Dlt. Altalrul Antl8DnV Arlenlc Blrhll lieryll hll Cdh.. CelclUl Cesllll Chr_11II CobIlt Copper Iron Leld Llthllll
Nllllber S~led (At) (At) (AI) (BI) (Be) (Cd) (CI) CCI) (Cr) (Co) (Cu) (F.) (Pb) (LI)
...- ....... ........ ......... ......... ......... ......... ....... ....... ....... ........ ....... ....... ....... ....... .......
0286 11.MAy.a7 0.029 U 0.06 U 0.01 U 0.1158 0.005 U 0.005 U 92.966 0.2 U 0.0' U 0.022 U 0.0065 0.0069 U 0.005 U
0286 0'-JUN.87 0.0449 0.06 U 0.01 U 0.113 0.005 U 0.005 U , '0. '033 0.2 U 0.0' U 0.022 U 0.0063 U 0.0069 U 0.005 U
0286 2'-JUL.87 0.029 U 0.02 U 0.005 U 0.1166 0.005 U 0.00' U 70.93'5 0.02 U 0.01 U 0.022 U 0.0121 0.0069 U 0.005 U
0286 3' -MAR-88 0.029 U 0.0373 0.005 U 0.0695 0.001 U 0.005 U 69.5858 0.02 U 0.0' U 0.022 U 0.0063 U 0.0069 U 0.005 U 0.12
0286 03.M.88 O. '247 0.1973 0.005 U 0.0823 0.00' U 0.005 U n .3296 0.02 U 0.0'54 0.022 U 0.0063 U 0.0429 0.005 U
0286 27. JUN. 89 .00004 B .00005 U .0008 B 0.002 U 0.005 U .03n08 0.009 U .00003 U 0.004 U .00003 U
0286 11-JUl-89 .27 .06 U .0' U .2 U .005 U .005 U 33.7 1.0 U .0' U .05 U .025 U .249 .005 U .685
0286 '9.MAR-9O 0.0587 0.026 U 0.0023 B 0.11 8 0.00' U 0.002 UN 60.2 0.05 8 0.005 U 0.004 U o.oon 8 0.0357 B 0.001 U 0.03'2 B
0286 07.JUN-9O 0.224 0.06 U 0.0' U 0.2 U 0.005 U 0.005 U 52.' 0.' U 0.0' U 0.05 U 0.025 U 0.1 U 0.003 U 0.' U
0286 '9. JtJI-9' 0.0395 B 0.0875 0.002 U 0.102 BE 0.00' U 0.002' 8 42 0.112 U 0.0078 8 0.003 U 0.011 U 0.0174 8 0.001 UW 0.1
0374 -AUG-86 0.1 U 0_05 U 0.002 U 0.1 U 0.0097 0.005 U 25.5 0.' U 0.0' U 0.05 U 0.02 U 0.03 U 0.005 U
0374 '7-MAR-87 . 0.3854 0.06 U 0.0' U 0.288' 0.005 U 0.005 U ']4.7004 0.2 U 0.01 U' 0.022 U 0.0085 0.058 0.005 U
0374 03-JUII-87 0.029 U 0.06 U 0.0' U 0.2"5 0.005 U 0.005 U 111.5307 0.2 U 0.01 U 0.022 U 0.0063 U 0.0069 U 0.005 U
0314 23.JUL-87 O.029.U 0.02 U 0.005 U 0.'884 0.005 U 0.001 U 126.5740 0.02 U 0.01 U 0.022 U 0.0064 0.0086 0.005 U
...11 o.t. "Ignes I III MInO_1 "ercury Mol ybderuI Nickel Potlllllll Selenlu. Silver Sodllll Strontllll Thlllllll Tin Vanedllll Zinc
Nllllber S~led (Mt) (M8) (H8) (No) (NI) (It) (S.) (A8) (NI) (Sr) (Tt) (Sn) (V) (Zn)
...... ....... ........ ......... ......... ......... ......... ......... ....... ....... ........ ....... ......... ....... ......... .......
0286 . 11.*Y.87 225.3522 O. '426 0.0002 U 0.022 U 0.0751 5 U 0.036 0.0076 U 251.5908 4.5874 0.0' U 0.024 u 0.02 U
0286 0'-M.87 2'0.6785 0.0586 0.0002 U 0.022 U 0.0824 5U 0.02 0.0076 U 225.5Q47 4.744 0.01 U 0.024 U 0.02 U
0286 2h1UL-87 195.9940 0.4458 0.0002 U 0.022 U 0.25" 0.7 0.006 0.0076 U 257.7494 3.997 0.0' U 0.0312 0.022
0286 31-MAlt.sa 147.4m 0.0801 0.0002 U 0.022 U o.om 0.5 U 0.005 U 0.0076 U 201.2186 3.219 0.01 U 0.036 U 0.035
0286 03- JIll. 88 150.20 0.0325 0.0002 U 0.022 U 0.0503 0.5 U 0.012 0.0076 U 220.5761 3.5613 0.01 U 0.036 U 0.02 U
0286 27-M-89 .1128557 0.002 U .00003 U .00006 0.004 U .2125613 .00274 .00003 U 0.008 U
0286 11-JUL-89 98.9 .0304 .0002 U .1 U .131 5.0 U .0394 .01 U 214 2.8 .01 U .164 .05 U !02 U
0286 19-MAlt.90 126 0.0'56 N 0.0002 U 0.035 U 0.0261 B 0.48 I 0.029.' 0.006 U 162 3.36 0.005 0.025 U 0.006 U 0.0306
0286 07.M.90 113 0.0431 0.0002 0.1 U 0.062 5.0 U 0.0333 0.01 U 184 2.92 0.0' U 0.1 U 0.05 U 0.02 U
0286 19.M.91 90.2 0.0014 I 0.0002 U 0.0165 B 0.0455 0.382 I 0.016 0.002 U 145 . 2.29 0.001 U 0.0515 I 0.0059 B 0.003 U
0374 .AIJG-86 14 0.016 0.0002 U 0.1 U 0.04 U 0.92 0.002 U 0.01 U '5.5 0.36 0.01 U 0.05 U 0.025
0374 17.MAIt-87 11.9124 0.0625 0.0002 U 0.022 U 0.037 U 5 U 0.005 U 0.0076 U 21.9046 0.4007 0.01 U 0.024 U 0.36
0374 03-M.87 11.0585 0.0051 U 0.0002 U . 0.022 U 0.0452 5U 0.005 U 0.0076 U 29. '251 0.3992 0.0' U 0.024 U 0.02 U
0374 23.JUL-87 11 .14n 0.0051 U 0.0002 U 0.022 U 0.037 U 0.9 0.004" 0.0076 U 31.6352 0.395' 0.01 U 0.024 U. 0.02 U
B-Vllue 1..1 thin tontrlCt a....lrld Detection Llalt (CaDL) but IIre.ter than lnetr.-..t O.tectlon Llalt (lDL)
-.pupllc.t. enelyel. not Mlthln control 11.lt.
U-An8lyzld but not detected ""r..ent below detection 1I.lt E-Eatl..ted Vltue
-------
p. 11o. 4
Ground W.ter DI..olved Met.1 I..ult.
Mow1d Arel
.eaulta reported In 8811
Well Olte Ahlll... Ant 180rIV Araenlc Ilrllll laryll I III ClCbh.. C.lcllll Ceallil ChrCIIIIII CobIl t Copper Iron leed Uthllll
llulber I811pI ed (At) (At) (Aa) (I.) (I.) (Cd) (C.) (C.) (Cr) (Co) (Cu) (Fe) (Pb) eLf)
...... ........ ........ ......... ......... ..-..... ......... ....... ....... ....... ........ ....... ....... ....... ....... .......'
2387 19.AUG-91 0.0693 I 0.008 U 0.002 U 0.169 IE 0.001 U 0.001 U 111 0.05 I 0.0085 I 0.002 U 0.0044 I 0.002 U 0.001 U 0.0051 I
4386 1'-MQ-17 0.029 U 0.06 U 0.01 U 0.0994 0.005 U 0.005 U 90.8264 0.2 U 0.01 U 0.022 U 0.0063 U 0.0069 U 0.005 U
4386 03-JUII-87 0.029 U 0.06 U 0.01 U 0.1065 0.005 U 0.005 U 68.0295 0.2 U 0.01 U 0.022 U 0.0063 U 0.0126 0.005 U
4386 28-JUl-87 0.0412 0.02 U 0.005 U 0.1602 0.005 U 0.0004 .I 94.7105 0.02 U 0.01 U 0.022 U 0.0063 U 0.0159 0.005 U
4386 OS.JUII-90 0.229 0.06 U 0.01 U 0.2 U 0.005 U 0.005 U 90.3 0.1 U 0.01 U 0-05 U 0.025 U 0.1 U 0.003 U 0.1 U
4386 20-AUG.91 0.0575' , 0.025 . 0.002 U 0.132 IE 0.001 U 0.001 U 88.9 0.06 I 0.0104 0.002 U 0.0068' 0.0147' 0.001 U 0.0039 8
Well Dlte .......1111 MIntIeneae Mercury Mol,wer.. IIlchl Pot..allil S.lenllll Sit ver Sodllll Strontllll Th.1l11il Tin V8I\IId1 III Zinc
lIumer 18IIIp1 ed ("8) (Me) (H8) (No) (III) (It) (S.) (A8) (II.) (Sr) (ft) (Sn) (V) (Zn)
...... ....... ........ ......... ......... ......... ......... ......... ....... ....... ........ ....... ......... ....... ......... .......
2387 19-AUG-91 12.2 0.001 U 0.0002 U 0.003 U 0.003 U 1.14 8 0.001 8 0.002 U 9.68 0.517 0.002 U 0.014 U 0.0058 I 0.0045'
4386 11-MI-87 10.5382 0.0051 U 0.0002 U 0.022 U 0.037 U 5 U 0.005 U 0.0076 U 13.5408 0.4313 0.01 U 0.024 U 0.04
4386 03-JUII-87 6.7585 0.0051 U 0.0002 U 0.0238 0.037 U 5 U 0.005 U 0.0076 U 8.1258 0.3216 0.01 U 0.024 U 0.02 U
4386 28-JUl-87 7.9498 0.0054 0.0002 U 0.022 U 0.037 U 1.3 0.005 U 0.0076 U 14.1637 0.3888 0.01 U 0.024 U 0.0219
4386 OS.JUII'90 10.3 0.015 U 0.0002 U 0_1 U 0.04 U 5.0 U 0.005 U 0.01 U 7.09 0.473 0.01 U 0.1 U 0.05 U 0.02'U
4386 2O-AUG-91 10.5 0.001 U 0.0002 U 0.0101' 0.003 U 1.34 IE 0.002 U 0.002 U 8.86 0.447 0.002 U 0.0272 8 0.0057 8 0.0172 I
,
'-Velue I..a than Contract 1...lred D.tectlon U.h (CIIOl) but Ire.ter then lnatrllllnt Detection ll.lt (lDl)
*-oupllcete 8nl1Y8la not within control 11.lta .
UaAnllyzed but not detected ""r..ent below detection 1I.lt
A-Acceptable with qualifications Y-Vllld and acceptable
E-Eatl..ted Vllue
-------
Pa..e 110. 3
Ground Water Oiliolved Metal Resultl
Ealt Trench.. Area
R..uUI reported In 118/1
well Date Al..l.... Ant 1....- Arlenlc earl.. eeryill.. C8dilI.. Calcl.. Cell.. Chr_l.. Cobalt Copper Iron Leed Llthl..
IIUlber SlIIpled (AI) (AI) (AI) (8a) (8e) (Cd) (Ca) .(CI) (Cr) (Co) (Cu) (Fe) (Pb) (LI)
...... ....... ........ ......... ......... ......... ......... ....... ....... ....... ........ ....... ....... ....... ....... .......
0386 03'MI-88 0.0816 0.0813 0.005 U 0.1981 0.001 U 0.005 U 89.5078 0.02 U 0.0106 0.022 U 0.0066 0.0753 0.005 U
0386 O6-OCT-88 0.0526 0_014 U 0.005 U 0.2081 0.001 U 0.005 U 79.~203 0.02 U 0.01 U 0.022 U 0.006J U 0.01n 0.005 U
0386 21-0EC-88 0.0653 0.0143 0.005 U 0.2008 0.001 U 0.005 U 76.6811 0.02 U 0.01 U 0.022 U 0.006J U 0.0069 U 0.005 U
0386 29-MAlt-89 0.0202" 0.05 U 0.001 U 0.2193 0.002 U 0.005 U 80.1232 0.005 U 0.009 U 0.029 U 0.0043 J 0.035 U G.C101 U
0386 22-JUII-89 .00003 I .00005 U .00025 0.002 U 0.005 U .077854 0.009 U .00003 U 0.004 U .00003 U
0386 29-JUII-89 .2 U .06 U .01 U .2 U .005 U .005 U 77.8 1.0U .01 U .05 U .025 U .1 U .005 U .1 U
0386 12-M-89 .2 U .06 U .01 U .215 .005 U .005 U 75.2 1.0 U .01 U . .05 U .025 U .1 U .005 U .1 U
0386 21-MAl-90 0.035 UN 0.026 U 0.002 U 0.225 0.001 U 0.002 UN 84.7 0.09 8 0.005 U 0.004 U 0.005 U 0.014 I 0.0022 8 0.0809 I
0386 08- JU11-90 0.426 0.06 U 0.01 U 0.236 0.005 U 0.005 U 90.1 0.1 U 0.01 U 0.05 U 0.025 U 0.1 U 0.003 U 0.1 U
0386 O6-I(P-90 0.0512 I 0.0221 I 0.001 U 0.227 E 0.001 U 0.002 U 82.3 E 0.4 B 0.0178 0.004 U 0.0039 I 0.013 U 0.001 U 0.D8J B
0386 15-!IOV-90 0.0529 e 0.022 U 0.001 U 0.26 0.001 U 0.005 U 100 0.5 U 0.004 U 0.004 U 0.005 U 0.003 U 0.001 U 0.09 B
0386 14-MAl-91 0.0588 I 0.0146 I 0.002 U 0.238 0.001 U 0.002 U 90.1 0.076 U 0.0145 0.003 U 0.0047 B 0.0295 I 0.001 U 0.0844 B
0386 20-JUII-91 0.0671 e 0.0508 e 0.002 U 0.237 E 0.001 U 0.0032 I 90.3 0.112 U 0.0222 0.0052 I 0.011 U 0.0189 B 0.001 U 0.D8J3 B
0774 -AUG-" 0.1 U 0.05 U 0.002 U 0.1 U 0.005 U 0.005 U 114 0.1 U 0.01 U 0.05 U 0.02 U 0.038 0.005 U
-
well Date M8gneel.. M8nt1...e Mercury Mol ybdenue IIlckel Potaill.. Selenl.. Silver Sodl.. Strontl.. Thalli.. Tin V8NldI.. Zinc
IIUlber SlIIpled (M,) (Mg) ("g) (Mo) (NI) (I() (Se) (Ag) (III) (Sr) (TI) (In) (V) (In)
...... ....... ........ ......... ......... ......... ......... ......... ....... ....... ........ ....... ......... .-.... ......... .......
0386 03-""-88 37.8459 0.0677 0.0002 U 0.022 U 0.3148 2.3 0.005 U 0.0256 49.1m 1.5757 0.01 U 0.036 U 0.0227
0386 O6-OCT -88 28.8084 0.0164 0.0002 U 0.022 U 0.1599 2.5 0.0139 0.0076 U 41.57~5 1.5623 0.01 U 0.036 U 0.03n
0]!16 21-0EC-88 28.0537 0.0051 U 0.0002 U 0.022 U 0.0688 2.1 0.012 0.0076 U 41_2MS 1.5014 0.01 U 0.036 U 0.02 U
0386 . 29-MAlt-89 28.836 0.006J J 0.0002 U 0.027 U 0.0671 2.45 .. .0161 0.004 U 42.9191 1.4496 0.001 U 0.014 U 0.008 U
0386 22-Ml-89 .029053 0.006 I _00003 U .(10008 0.004 U .043878 .00141 .OOOOJ U 0.008 U
0386 29-JUII-89 27.9 .015 U .0002 U .1 U .05J2 5.0 U .0198 .01 U 44 1.36 .01 U' .1 U .05 U .02 U
0386 12-JUl.-89 . 30.7 .015 U .0002 U _1 U .058 5.0 U .021 .01 U 39.7 1.5 .01 U .1 U .05 U .02 U
0386 I)-MAl-90 32.2 . 0.0021 0.0002 U 0.035 U 0.0297 I 2.4' 0.0309 II 0.006 U 46.9 1.48 0.001 0.025 U 0.006 U 0.0066 I
0386 08-Ml-90 35.1 0.015 U 0.0002 U 0.1 U 0_0464 5.0 U 0.043 0.01 U 51.7 1.64 0.01 U 0.1 U 0.05 U 0.02 U
0386 06-1('-90 32.4 E 0.004 . 0.0002 U 0.0115 I 0.032 I 2.38 . 0.0464 S 0.0118 40.6 E 1.45 E 0.003 U 0.0449 . 0.0096 I 0.0081 I
0386 15-!IOV-90 35.2 0.017 0.0002 U 0.009 U 0.0237' 4.45 I 0.0477 0.0101 46.6 1.58 0.002 U 0.03 U 0.0131 I 0.0022 I
0386 14-MAl-91 14.2 0.0014 . 0.0002" 0.006 I 0.0654 2.55 I 0.0475 I 0.0053 e 52.' 1.57 0..' U 0.029 I 0.0065 I 0.0112 I
0386 2O-JUII-91 54.1 0.001 U 0.0002 U 0.0099 I 0.0539 Z.O I 0.064 0.0046' 53.3 1.58 0.001 U 0.0322 . 0.0066 I 0.0075'
0774 --AUG-" 29 0.01 U 0.0002 U 0.1 U 0.04 U 2.5 0.002 U 0.01 U 6.5 .0.56 0.01 U 0.05 U 0.02 U
I-Value 1..1 than Contract .equlred Detection LI.lt (CIIOL) but greater th.... Inlt..-t Oatectlon LI.lt (IOU
--oupllcate 1n81yela not Mlthln control 11.lta
U-An8iyzed but not detected J-'r..ent balON detection 1I.1t E-Eltl..ted Value
-------
'-ge "0. 2
Ground Weter Dlssoived Met.i Reauita
E.at Trench.. Area
Resuit. reported In 18/1
...11 Date Allllirul Antl8Dr1Y Araenlc 'arllll B.ryllllll CIICiIIIII Calcllll C..IIII Chrcallll Cobalt Copper Iron Lead Llthllll
.....r 1..lad (AI) (AI) (A.) (8a) (Be) (Cd) (Ca) (C.) (Cr) (Co) (Cu) (Fe) (Pb) UI)
...... ....... ........ ......... ...-.... ..-..... ......... ....... ....... ....... ........ ....... ....... ....... ....... .......
0374 23-OCT-'7 0.0356 0.02 U 0.005 U O. 1988 0.003 J 0.001 U 105.9805 0.02 U 0.1223 0.022 U 0.0104 0.348 0.001 J 0.01 J
0514 OHWI-88 0.0909 0.02 U 0.005 U 0.1971 0.005 U 0.001 U 115.2379 0.02 U 0.01 U 0.022 U 0.0242 0.0513 0.005 U 0.1 U
0514 O5-.Y-88 0.0419 O.034U 0.005 U 0.1904 0.001 U 0.005 U 12.6524 0.02 U 0.01 U 0.022 U 0.0118 0.0077 0.007
0514 tt'AUG-88 0.029 U 0.034 U 0.005 U 0.1959 0.001 U 0.005 U 117.0657 0.02 U 0.0107 0.022 U 0.0063 U 0.0278 0.005 U
0374 25-MAY-90 0.2 U 0.06 U 0.01 U 0.2 U 0.005 U 0.005 U 117 2.5 U 0.01 U 0.05 U 0.025 U 0.1 U 0.003 0.1 U
0514 01'AUG-90 0.0742 0.01 U 0.001 I 0.201 E 0.001 U 0.002 U 118E 0.147 U 0.0182 0.004 U 0.003 U 0.0227' 0.001 U 0.0052'
0514 16-1!OV-90 0.0514 B 0.0114 I 0.002 U 0.192 B 0.001 U 0.002 U 115 0.2 B 0.0127 0.003 U 0.0069' 0.0433' 0.001 U 0.0052'
0374 22-AUG-91 0.0688' 0.0269 I 0.002 U 0.193 8E 0.001 U 0.0014 B 111 0.06 B 0.0173 0.002 U 0.0091 I 0.0157 B 0.001 UII 0.0064 I
0386 - -SEP-86 0.1 U 0.05 U 0.002 U 0.' U 0.005 U 0.005 U 88 0.' U 0.01 U 0.05 U 0.02 U 0.075 U 0.01 U
0386 12-MAY-81 O.06n 0.06 U 0.01 U 0.2088 0.005 U 0.005 U 92.0666 0.2 U 0.01 u 0.022 U 0.0089 0.0487 ' 0.005 U
0386 08.JUII'87 0.029 U 0.06 U 0.01 U . 0.1068 0.005 U 0.005 U 42.2227 0.2 U 0.01 U 0.022 U 0.0063 U 0.0227 0.005 U
0386 24-JUl-87 0.19JJ 0.02 U 0.005 U 0.1692 0.005 U 0.0003 J 87.7801 0.02 U 0.01 U 0.022 U 0.0075 0.1442 0.005 U
0386 15-DEC-87 0.0387 0.02 U 0.005 U 0_1n2 0.005 U 0.00' U 67.5669 0.02 U 0.0' U 0.022 U 0.012' 0.0529 0.002 J 0.08 J
0386 31-MAl-88 0.0352 0.034 U 0.005 U O. '235 0.001 U 0.005 U 79.015 0.02 U 0.0112 0_022 U 0.0063 U 0.0149 0.005 U 0.1 U
lIeli Date MIIR88 1111 Manganese Mercury Molybdelul Nickel Pot...11II 5.lenllll 5 II VIr 50dllll S t rontllll Theil 1111 Tin Vanadllll Zinc
.....r S..ied (Mg) (Mg) (IIg) (No) (NI) (I() (Se) (All) (lIa) (Sr) (T\) (Sn) (V) (In)
...... ....... ........ ......... ......... ......... ......... ......... ....... ........ ....... ......... ....... ......... .......
0514 23-OCT-87 10.2265 0.0051 U 0.0002 U 0.022 U 0.031 U 1 0.003 J 0.0076 ~ 21.8861 0.3549 0.01 U 0.024 U 0.033
0374 03-MAl-88 10.8145 0.0051 U 0.0002 U 0.022 U 0.051 U 0.9 0.005 U 0.0076 U 22.4269 0.3905 0.01 U 0.024 U 0.0233
0514 OS-MAY-88 11.4483 0.0051 U 0.0002 U 0.022 U 0.051 U ' 0.005 U 0.0161 20.8114 0.3817 0.01 U 0.036 U 0.02 U
0314 19-AUG-88 '0.583 0.0051 U 0.0002 U 0.022 U 0.037 U 0.9 0.005 U 0_0076 U 22.088J 0.35JJ 0.0' U 0.036 U 0.0202
0514 25-MAY-90 11.7 0.015 U 0.0002 U 0.1 U 0.04 U 5.0 U 0.005 U 0.01 U 23.4 0.388 0.01 U 0.1 U 0.05 U 0.02 U
0374 01-AUG-90 11.1 E 0.0013 I 0.0002 U 0.0077 8 0.004 I 1.2 IE 0.002 U 0.0085 I 21.4 0.365 E 0.003 0.0262 . 0.0104 I o.ooei I
0374 16'NOV-90 11.1 0.0019 I 0.0002 U 0.002 U 0.004 U 1.09 I 0.001 U 0.0043 I 19.1 0..357 0.002 0.0179 I 0.0048 I 0.0415
0374 22'AUG-91 10.6 0.001 U 0.0002 U 0.0032 . 0.0038 I 1.ft IE 0.004 I 0.0036 I 21.6 0.334 0.002 U 0.0222 I 0.0073 I 0.0085 I
0386 -IEP-86 32 0.038 0.00024 0.1 U 0.04 U 2.63 0.015 0.01 U 26.6 1.58 0.01 U 0.05 U 0.0J4
0386 12'MAY-87 33.5725 0.0131 0;0002 0.022 U 0.0746 5U 0.01 0.0076 U 34.99n 1.5504 0.01 U 0.024 U 0.02 U
0386 08''''''87 19.8744 0.005' U 0.0002 U 0.022 U 0.1158 5U 0.008 0.0076 U 27.6169 0.9392 0.01 U 0.0241 0.02 U
0386 . 24.JUI.-87 31.5093 0.0874 0.0002 U 0.022 U 0.2245 1.9 0.006 0.0076 U 43.4357 1.558 0.01 U 0.024.U 0.02 U
0386 15-DEC-87 24.6254 0.0789 0.0002 U 0.022 U 0.1477 2.8 0.006 0.0076 U 42.6454 1.2354 0.01 U 0.24 U 0.0263
0386 31'MAI-88 29.3416 0.0779 0.0002 U 0.022 U 0.379' 1.7 0.016 ' 0.oor6 U 48.1063 1.3701 0.01 U 0.036 U 0.02 U
..Vaiue I... than Contreet ..,..Irad Datectlon LI.lt (CRDL) but 8reater than lnatr~t Detection LI.lt (lDL)
eaDupllcate analyal. not within control 11.ltl
. U-An8iyzed but not detected "-pre.ent beiow detection tI.lt EaE.tl..ted Value
-------
pal8 110. 5
Ground Water Dissolved Metal R..ult.
Ea.t Trenche. Ar.a
Resultl reported In 88'1
We" Oat. Ahal,.. Antl8Dl1Y Arsenic Blr ha Baryil ha ClKbhlll C.lch.. C..IIII ChrCIIIIl1II Cobalt Copper Iron L.1d Llthllll
IlUlibar lallpl eel (AI) (AI) (III) (81) (Ie) (Cd) (CI) (CI) (Cr) (Co) (Cu) (Fe) (Pb) (LI)
...-. ....... ........ ......... ......... ......... ......... ....... ....... ....... ........ ....... ....... c...... ....... .......
2274 09-UP-91 0.1 U 0.05 U 0.002 U 0.1 U 0.002 U 0.0065 132 0.5 U 0.005 U 0.01 U 0.01 U 0.05 U 0.0025 8 0.184
2587 Zl-OCT-87 2.6796 0.1524 110.7037 0.0785 0.022 U 0.0063 U 4.347
2587 O4-MAR.II 0.029 U 0.02 U 0.005 U 0.1128 0.005 U 0.001 U 116.7854 0.02 U 0.01 U 0.022 U 0.0063 U 0.0171 0.005 U 0.1 U
2587 12-MAY-II 0.0968 0.034 U 0.005 U 0.0769 0.001 U 0.005 U 105.3446 0.02 U 0.01 U 0.022 U 0.0126 0.022 0.005 U
2587 t6-AUQ-II 0.0897 0.034 U 0.005 U 0.0937 0.001 U 0.005 U 119.8486 0.02 U 0.01 U 0.022 U 0.0063 U 0.0319 0.005 U
2587 1,",IOV-II 0.0376 0.034 U 0.005 U 0.1076 0.001 U 0.005 U 125.3399 0.02 U 0.0158 0.022 U 0.0063 U 0.067 0.005 U
2587 15-'EI.89 0.0614" 0.05 U 0.001 U 0.1269 " 0.002 U 0.005 U 124.]472 0.005 U 0.009 U 0.029 U 0.004 U 0.0767" 0.0111
2587 09-MAY-89 0.0387 J 0.05 U .001 U 0.142 J 0.002 U 0.005 U 129.6354 .2 U 0.009 U 0.029 U 0.004 U 0.035 U .001 U
2587 01-'EI-9O 8.14 0.022 U 0.0034 0.212 0.001 U 0.003 U 128 0.0495 0.0098 8 0.0246 8 14.9 0.0116 II
2587 1h1UII-9O 0.07 U 0.0227 . 0.0016 U 0.0801 1 0.0007 U 0.0034 U 108 1.0U 0.0048 8 0.0041 U 0.0051 8 0.0106 U 0.0019 0.0034 U
2587 09-MAR.91 0.0439 B 0.008 U 0.002 UW 0.115 8 0.001 U 0.002 U 127 0.076 U 0.005 U 0.003 U 0.002 U 0.0117 8 0.001 UW 0.0039 8
2587 Zl-AP..91 0.0481 1 0.006 U 0.002 U 0.127 1 0.001 U 0.002 U 137 0.112 U 0.003 U 0.00] U 0.011 U 0.0392 0.001 U 0.006 1
2587 10-IIP-91 0.1 U 0.05 U 0.002 U 0.104 . 0.002 U 0.0086 134 0.5 U 0.005 U 0.01 U 0.01 U 0.05 U 0.0012 8 0.05 U
2787 23-AUQ-88 0.0522 0.034 U 0.005 U 0.1117 0.001 U 0.005 U 85.0476 0.02 U 0.01 U 0.022 U 0.0076 0.0216 0.005 U
YeU Olt. Ma"," 1111 1IIng..... Mercury fIG I ybdeIUI IIlck.I .Pot...11II Sllenllll 511ver 50111111 5trontllll Th.IIIIII Tin VIf1IdIIll Zinc
IIUIIIb8r ",1 Id (Me) (Me) (HI) (fIG) (III) (I() (5.) (AI) (lIa) (Sr) (TI) (Sn) (V) (In)
....- ....... ........ ......... ......... ......... ......... ......... ....... ....... ........ ....... ......... ....... ......... .......
2274 09-UP-91 29.7 0.0526 0.0002 U 0.01 U 0-.0127 8 2.0 U 0.0011 .. 0.005 U 177 0.946 0.001 U 0.1 U 0.01 U 0.0104 8
2587 22.OCT.87 8.0261 0.3485 0.022 U 0.037 U 0.0076 U 9.]25~ 0.]112 0.0401 0.0886
2587 O4.MAR.II 7.8072 0.0051 U 0.0002 U 0.022 U 0.037 U 1.1 0.005 U 0.0076 U 11.7683 0.2998 . 0.01 U 0.024 U 0.02 U
2587 12.MAY-II 7.3872 0.0051 U 0.0002 U 0.022 U 0.037 U 0.6 0.005 U 0.0076 U 11.0605 0.2345 0.01 U 0.036 U 0.02 U
2587 16-AUQ-" 7.1069 0.0051 U 0.0002 U 0.022 U 0.037 U 0.5 0.005 U 0.0076 U. 1J~3006 0.2606 0.01 U 0.036 U 0.0264
2587 11-IOV.II 7.6568 0.0051 U 0.0002 U 0.022 U o.on U 0.5 " 0.005 U 0.0076 U 11 .4616 0.3155 0.01 U 0.036 U 0.0991
2587 15-'EI.89 8.7065 0.0023 " 0.0002 U 0.027 U 0.022 U 0.6 J .0014 " 0.004 U 13.04R 0.348 0.001 U 0.034 U 0.0195 J
2587 09-MY.89 9.2948 0.002 U .0002 U 0.N7 U 0.022 U 1.0 " .001 U 0.004 U 12.6046 0.3801 .001 U 0.054 U 0.008 U
2587 01-FEI-9O 10.4 0.235 - 0.0002 U 0.0338. 2.34 8 0.002 III 0.003 U 10.6 0.004 0.0785 0.09
2587 11."'-90 6.79 0.0022 U 0.0002 U 0.0092 1 0.0096 U 1.47 U 0.0012 U 0.003] U 10.J 0.229 . 0.0016 0.0107 U 0.0029 U 0.0049 1
2587 09.MAR.91 9.1 0.001 U 0.0002 0.003 U 0.004 U 0.667 IE 0.002 III 0.003 U 11.8 O.J34 0.001 U 0.011 U O.OO4J 1 0.0089 1
2587 22.AP.-ft 9.65 0.0011 1 0.0002 U 0.0033 1 0.003 U 0.649 8 0.002 U 0.002 U 11.8 0.361 0.001 811 0.01 U 0.002 U 0.0081 1
2587 10-lIp.91 8.73 0.0056 1 0.0002 U 0.01 U 0.01 U 2.0 U 0.001 U 0.005 U 12.5 0.303 0.001 U 0.1 U 0.01 U 0.0119 .
2787 23-AUQ-II 15.026 0.0051 U 0.0002 U 0.022 U 0.037 U 4 0.005 U 0.0076 U 27 . 5836 0.4937 0.01 U 0.036 U 0.02 U
.-VII", I... than Contract .equlred D.tectlon LI.I t (CRDL) but Ir..tlr than lnatr~t Datectlon U.lt CUlL)
--Duplicate analyal. not within control II.lt.
U-An81Yled but not detected JaPr..ent below detection 1I.lt E-E8tl..ted Value
-------
Pag. 110. 4
Ground Water Diliolved Metal Relult.
Ellt Trench.. Arll
RHult. reported In l18/l
lieU Olt. Ah.l... Antl8IInV Arllnlc IIr I ua BeryU II.. C_lua CllclUl Ce.lua Chr08lU1 Cobalt Copper Iron l.ed Uthlua
I""r SIIIpI ed (AU .(Al) (A.) (BI) (Be) (Cd) (CI) (C.) (Cr) (Co) (Cu) (Fe) (Pb) (ll)
...... ....... ........ ......... ......... ......... ......... ....... ....... ....... ........ ....... ....... ....... ....... .......
0774 07-MY-87 0.029 U 0.06 U 0.01 U 0.1447 0.005 U 0.005 U 99.6755 0.2 U 0.01 U 0.022 U 0.0063 U 0.0081 0.005 U
On4 28'MY-87 0.029 U 0.06 U 0.01 U 0.1559 0.005 U 0.005 U 102.9226 0.2 U 0.01 U 0.022 U 0.0063 U 0.0128 0.006
On4 n'JUl-87 0.03 . 0.002 U 0.005 U 0.1728 0.005 U 0.001 U 9905678 0.02 U 0.01 U 0.022 U 0.0066 0.0069 U 0.005 U
0774 05-1IOV-87 0.0298 0.02 U 0.005 U 0.1671 0.005 U 0.0005 J 87.3583 0.02 U 0.01 U 0.022 U 0.01 0.0329 0.005 U 0.1 U
2274 -IEP-86 0.1 U 0.05 U 0.002 U 0.1 U 0.005 U 0.005 U 1.42 0.1 U 0.01 U 0.05 U 0.025 U 0.075 U 0.01 U
2274 13-1W1-87 0.029 U 0.06 U 0.01 U 0.2133 0.005 U 0.005 U 97.3944 0.2 U 0.01 U 0.022 U 0.0063 U 0.0069 U 0.005 U
2274 22-MY-87 0.029 U 0.06 U 0.01 U 0.1969 0.005 U 0.005 U 103.83 0.2 U 0.01 U 0.022 U 0.0078 0.0143 0.022
2274 28-.IUl-87 0.0887 0.02 U 0.005 U 0.2474 0.005 U 0.001 U 101.2011 0.02 U 0.01 U 0.022 U 0.0064 0.0515 0.005 U
2Z74 21-CICT-87 0.0376. 0.02 U 0.005 U 0.1835 0.001 .I 0.001 U 84.5535 0.02 U 0.01 U 0.022 U 0.0132 0.0516 0.005 U 0.02.1
2274 01-DEC-89 .2 U .06 U .01 U .246 .005 U .005 U 82.8 2.5 U .01 U .05 U .025 U .1 U .003 U .1 U
2214 1NWt.9O 0.0418 U 0.0134 U 0.0013 U 0.265 0.0002 U 0.0032 81.3 E 0.0058 U 0.0027 U 0.0032 B 0.0113 U 0.0014
2214 21'.1\11-90 0.2 U 0.06 U 0.01 U 0.25 0.005 U 0.005 U 88.9 0.1 U 0.01 U 0.05 U 0.025 U 0.1 U 0.003 U 0.1 U
2214 OHIOV-9O 0.0303 B 0.022 U 0.001 U 0.264 0.001 U 0.005 U 113 0.5 U 0.004 U 0.004 U 0.005 U 0.003 U 0.001 U 0.0213.
2274 23-MY-91 0.0534 B 0.0153' 0.002 U 0.284 0.001 U 0.002 U 93.9 0.112 U 0.0055 . 0.003 U 0.011 U 0.0114 I 0.001 U 0.022 I
lieU Data .......Iua MInt.... Mercury. Mol ybderuI Ilckel Pota..lua S.lenlua SHv.r Sodlua Strontlua Tha" lua Tin Vanadlua Zinc.
lllllber IlIIpled (Mg) ("I) (HI) (110) (II) (I() (S.) (AI) (Ia) (Sr) (Tl) (In) (V) Un)
...... ....... ........ ......... ......... ......... ......... ......... ....... ....... ........ ....... ......... ....... ......... .......
0774 07'MY-87 11.]116 0.0051 U 0.0002 U 0.022 U 0.031 U 5 U 0.005 U 0.0016 U 17.2628 0.3836 0.01 U 0.024 U 0.02 U
0774 21-MY-81 11.6059 0.0051 U 0.0002 U 0.022 U 0.037 U 5 U 0.005 U 0.0076 U 13.0157 0.3916 0.01 U 0.024 U 0.02 U
0774 23-.IUl'87 1].0517 0.0051 U 0.0002 U 0.022 U 0.037 U 1.] 0.002.1 0.0076 U 18.71~ 0.4422 0.01 U . 0.024 U 0.02 U
0774 05-1IIJV-87 13.3154 0.0051 U 0.0002 U 0.022 U 0.037 U 1.2 0.005 U 0.0076 U 16.168 0.4369 0.01 U 0.024 U 0.02 U
2274 - -IEP-86 22.5 0.065 0.0002 U 0.19 0.04 U 4.1 0.017 0.014 22.4 1.11 0.01 U 0.05 U 0.04 U
2274 1]-1WI-87 19.4344 0.0051 U 0.0002 U 0.022 U 0.037 U 5.0 U 0.005 U 0.0076 li 29.3958 0.9296 0.01 U 0.024 U 0.03
2274 22-MY-87 18.1591 0.0051 U 0.0002 U 0.022 U 0.037 U , U 0.005 U 0.0076 U 33.3721 0.8147 0.01 U 0.024 U 0.0393
2274 28-a -87 17.3086 0.0416 0.0002 U 0.022 U 0.031 U 2.] 0.005 U 0.0016 U ]1.2635 0.8662 0.01 U 0.0251 0.0234
2274 21-CICT -87 16.4465 0.0051 U 0.0001" 0..022 U 0.031 U 2.7 0.005 U 0.0076 U 29.839 0.7917 0.01 U 0.024 U 0.0364
2274 01-DEC-" 17.5 .015 U .0002 .1 U .04 U 5.0 U .005 U .01 U 36.1 1.01 .01 U .1 U .05 U .02 U
2274 17-1W1-9O 18.5 E 0.0133 . 0.0002 U 0.0111 U 1.66 8 0.0018 U 0.0049 36.1 I 0.0009 0.00] U
2274 21-.8\11-90 18.4 0.015U 0.0002 U 0.1 U 0.04 U 5.0 U 0.005 U 0.01 U J3.7 0.86 0.01 U 0.1 U 0.05 U 0.02 U
2274 0]-1IIJV-9O 21.2 0.0077 . 0.0002 U 0.009 U 0.009 U 4.05 8 0.002 U 0.006 . J3.7 0.962 0.002 U 0.03 U 0.0073' 0.002 U
2214 23-MY-" 19.3 0.0013 . 0.0002 U 0.0039 . 0.003 U 3.37 . 0.002 . 0.002 U 38.6 0.987 0.001 U 0.01 U 0.002 U 0.012 .
'-Yal~ In. thlft Contract R-.,.Ired Detection U.lt (CDl)but Ir.ater thlft Inlt~t DetectIon LI.lt (lDl)
*-oupllcata analysl. not within control 11.lt.
U-AnalVZed but not detected .I"rn",t below detection U.I t E-E.tl..ted Val~
-------
pe.. No. 1
Ground Water Dissolved Meta' Results
Eest Trench.. Area
Results reported In 88"
we" Date A'UlI,.. Ant IIIOn)' Araenlc larlUl 8eryH hID CedlhlD calclUIII CeslUl ChrOllIUl Cobalt Copper Iron Lead LlthlUl
llulber S...-led (AU (AU (Aa) (Ia) (8e) (Cd) (Ca) (Ca) (Cr) (Co) (Cu) (Fe) (Pb) (If)
...... ....... ........ ......... ......... ......... ......11=- .....:a ....... ....... a....... ....... ....... ....... ....... .......
3181 2HIOV-9O 0.0513 8 0.009' 0.006 8 0.0251 0.001 U 0.002 U 21.1 0.016 U 0.0114 0.0039' 0.0042 8 0.014 U 0.001 U 0.0296 8
3181 11.JAII.91 0.0569 8 0.0111' 0.004 . 0.0181 8 0.001 U 0.002 U 21.1 E 0.016 U 0.005 U 0.003 U 0.002 U 0.159. 0.001 U 0.0234 8
3181 16-APR.91 0.0189 8 O.OO8U 0.005 . 0.0268 . 0.001 U 0.002 U 22.8 0.112 U 0.005 U 0.003 U 0.002 U 0.004 U 0.001 U 0.0415'
3181 10.5£P-91 0.'1" 0.05 U 0.0041 8 0.1 U 0.002 U 0.003 U 21.1 0.5 U 0.005 U 0.01 U 0.01 U 0.05 U 0.0016.8 0.05 U
3281 21.OCT-81 0.0349 0.1902 91.1691 0.0411 0.022 U 0.0063 U 0.0945
3281 10.W-88 0.029 U 0.014 0.005 U 0.19R 0.005 U 0.001 U 114.4551 0.02 U 0.01 U 0.022 U 0.2221 0.0106 0.005 U 0.1 U
3281 12-MY-88 0.0302 0.034 U 0.005 U 0.1014 0.001 U 0.005 U 119.8149 0.02 U 0.01 U 0.022 U 0.0621 0.0561 0.005 U
3281 23'AUG.88 0.029 U 0.034 U 0.005 U 0.1612 0.001 U 0.005 U 115.3616 0.02 U 0.01 U 0.022 U 0.01 0.0461 0.005 U
3281 11.NC)V.88 0~0359 0.034 U 0.005 U 0.1861 0.001 U 0.005 U 129.3694 0.02 U 0.01 U 0.022 U 0.0063 U 0.0283 0.005 U
3287 22-FEI.89 0.0199 J 0.0515 J 0.001 U 0.2163 0.002 U 0.005 U 112.9189 0.005 U 0.0126 0.029 U 0.0059 J 0.0441 J 0.0026 J
3287 29.NC)V.9O 0.0418 8 0.0152 8 0.002 U 0.202 0.001 U 0.002 U 105 0.016 U 0.0016 8 0.003 U 0.002 U 0.014 U 0.001 U 0.0034 8
3281 15-JAII.91 0.071 8 0.031' 0.002 U 0.224 0.001 U 0.0036 I 114 0.016 U 0.031 0.0089' 0.0166 8 0.0206 I 0.001 U 0.004 8
3287 16.APR.91 0.0801 8 0.0126' 0.002 U 0.215 0.001 U 0.002 U 111 0.112 U 0.0011 I 0.003 U 0.0119 I 0.03R 8 0.001 U 0.0333'
3487 10'W-88 0.029 U 0.02 U 0.001 0.0424 0.005 U 0.001 U 192.5822 0.02 U 0.0123 0.022 U 0.0063 U 0.9145 0.005 U 0.22
we" Date Me..... I UI MIIOII-a Marcury No' ybderuI Nickel potasslUl 5eleniUl 5 Il ver SodlUl StrontlUl ThatllUl Tin VanadlUl Zinc
Nl8er s-..led (Mil) (Mil) (HI) (No) (N!) (Ie) (Sa) (All) (Ne) (Sr) (Tl) (5n) (V) un)
...... ....... ........ ......... ......... ......... ......... ......... ....... ....... ........ ....... ......... ....... ......... .......
3187 21-NC)V-9O 4.03 8E 0.0053 8 0.0002 U 0.0171 . 0.0019 8 2.6 8E 0.001 0.0051 8 71.6 E 0.27 E 0.002 U 0.0122 I 0.0066' 0.0117 8
3187 11.JAII-91 4.11 IE 0.0059 8 0.0002 U 0.013 8 0.0086' 3.0 I 0.002 tAl 0.003 u' 90.2 0.27 E 0.003 U 0.011 U 0.0025' 0.019'
3187 16-APR-91 4.54 8 0.0067 8 0.0002 0.0074 I 0.0099 8 2.84 8E 0.002 0.003 U 85.4' 0.293 0.001 tAl 0.011 U 0.0026' 0.025
3187 10-IEP.91 4.23' 0.0185 0.0002 U 0.0107 . 0.01 U 2.58 8 0.001 U 0.005 U 80.4 0.264 0.001 U 0.1 U 0.01 U 0.0291
3287 27.OCT.87 15.4193 0.6198 0.022 U 0.0463 0.0076 U 24.5042 0.5598 0.024 U 0.02 U
3287 10....88 16.004 0.4679 0.0002 U 0.022 U 0.3783 3.2 0.005 U 0.0016 U 25.0155 0.59)5 0.01 U 0.024 U 0.98
3287 12-MY-88 19.4299 0.1821 0.0002 U 0.022 U 0.0584 3.7 0.005 U 0.0076 U 31.8007 0.5876 0.01 U 0.036 U 0.1113
3287 23-AUQ-88 14.4138 0.0316 0.0002 U 0.022 U 0.037 U 2.6 0.005 U 0.0076 U 25.5158 0~5098 0.01 U 0.036 U 0.0502
J287 17.NC)V'88 15.066 0.01" 0.0002 U 0.022 U 0.037 U 1.4 0.005 U 0.0076 U 26.0447 0.6276 0.01 U 0.036 U 0.022
5287 22-FE..M 14.0302 0.0038 J 0.0002 U 0.027 U 0.022 U 1.15 J 0.001 U 0.004 U 28.8088 .0.549 0.001 U 0.034 U 0.0744
5287 29-"-90 14.6 0.001 U 0.0002 U 0.0045 I 0.0062' 1.J9' 0.002 U 0.004 U 21.6 0.534 0.002 U 0.0417 I 0.0051' 0.0109'
J287 15'JAII-91 15.7 0.0058 I 0.0002 U 0.0109 I 0.0319 I 1.48' 0.002 U 0.008 I 17.8 0.559 O.OOJ U 0.0324 I 0.0128 I 0.02R
5287 ".APR-91 '5.4 0.0051 I 0.0002 U O.ooJ U 0.0168 I 1.92 IE 0.002 UN 0.0054' 23.7 0.565 0.001 tAl 0.0257 I 0.0084 I 0.0162'
3487 10-"'88 63.8066 0.1471 0.0002 U 0.0245 0.017 U 7.6 0.005 U . 0.0076 U 219.1568 2.59R 0.01 U 0.024 U 0.02 U
I-Value 'aaa than Contract ...,Ired Detection U.lt (CRDU but Ire.ter than InatrUllnt D.tectlan U.lt (lDU
*-oup'lcata analysla not within control ll.lta
U-Anal ped but not detected J-Pr..ent belOM detection lI.lt E8£.tl-ted value
-------
Pele 1o. 6
Ground Water Dissotved Metet .esutts
Esst Trenches Are.
Resutt. reportld In 118ft
WItt Date Atllll... Antl80nY Ar.enlc larlill lerytt I III C.IIII C.tctlll C..IIII ChrOlllllll CobI! tt Copper Iron Leed Llthlill
IUllblr S8lllp11d (At) (At) (A.) (B.) (Be) (Cd) (Ca) (C.) (Cr) (Co) (CU) (fe) (Pb) (LI)
. ...... ....... ........ ......... -a...... ......... ........- ....... ....... ....... ........ a...... ....... ....... ....... ........
2787 17-1IOV-88 0.0524 0.034 U 0.005 U 0.1 t6 0_001 U 0.005 U 92.1867 '0.02 U 0.01 U 0.022 U 0.0063 U 0.0491 0.005 U
2787 11-MAY-89 0.0233" 0.05 U .001 U 0.1053 J 0.002 U 0.005 U 89.9515 .2 U 0.009 U 0.029 U 0.0108 J 0.035 U .001 U
2787 05-0EC-89 .2 U .06 U .01 U .2 U .005 U .005U 96.6 2.5 U .01 U .05 U .025 U .1 U .003 U .1 U
2887 15-MAH-88 0.029 U 0.02 U 0.004 J 0.0258 0.005 U 0.001 13.1315 0.02 U 0.01 U 0.022 U 0.0063 U 0.0143 0.005 U 0.1 U
2887 12-MAY-88 0.2705 0.034 U 0.005 U 0.0913 0.001 U 0.005 U 19.9311 0.02 U 0.01 U 0.022 U 0.0463 0.1786 0.005 U
2887 20-fEI-89 0.0918 J 0.05 U 0.0022 J 0.042 J 0.002 U 0.005 U 35.1215 0.005 U 0.0151 0.029 U 0.0127 J 0.0983 J 0.001 U
3187 29-OCT -87 0.2634 0.056Z 15.3345 0.026 0.022 U 0.0141 0.1701
3187 10-MAH-88 0.0864 0.02 U 0.019 0.0146 0.005 U 0.0025 21.9756 0.02 U 0.01 U 0.022 U 0.0063 U 0.0371 0.005 U 0.1 U
3187 12-MAY-88 0.2029 0.034 U 0.008 0.0472 0.001 U 0.005 U 20.2619 0.02 U 0.01 U 0_022 U 0.0121 0.0906 0.005 U
31i7 25-AUQ-88 0.0419 0.034 U 0.0053 0.0408 0.001 U 0.005 U 22.0879 0.02 U 0.01 U 0_022 U 0.0106 0_0239 0.005 U
3187 2Z-1QV-88 0.1283 0.034 U 0.004 J 0.0224 0.001 U 0.005 U 21.8225 0.02 U 0.01 U 0.022 U 0.0063 U 0.1436 0.005 U
3187 n-fE'-89 0.0165 J 0.05 U .0047 J 0.0179 J 0.002 U 0.005 U 19.2669 0.005 U 0.009 U O.ON U 0.004 U 0.0371 J 0.001 U
3187 11.MY-89 0.0291 J 0.05 U .003 J 0.0193 J 0.002 U 0.005 U 20.0689 .2 U 0.009 U O.ON U 0.004 U 0.035 U .001 U
3187 18-SEP-9O 0.01U 0.007 U 0.004 8 0.024 BE 0.001 U 0.002 U 23.8 E 0.092 U 0_005 U 0.003 U 0.002 U 0.014 U 0.0341 0.03 I
wett Date M....IIII Mengane.. Mercury Motybderul IIcket Pot...tlll Setenlill Sliver Sodlill Strontlill Th.tt 1111 Tin VIINId I III ztnc
Il.IIIber SIIIpIId (Mil) (MIl) (HII) (110) (In (K) (5e) (.11) (I.) (5r) (Tt) (In) (V) Un)
....... ........ ......... ......... ......... ......... ......... ....... ....... ........ ....... ......... ....... ......... .......
2787 17-1lov-88 14.0185 0.0091 0.0002 U 0.022 U 0.037 U 2.6 0.005 U 0.0095 27.3135 0.5492 0.01 U 0.036 U 0.0256
2787 11-MAY-89 15.6679 0.0062 " .0002 U 0.027 U 0.022 U 4.21" .001 U 0.004 U 30.1146 0.577 .001 U 0.034 U 0.008 U
2787 05-0EC-89 15.6 .015 U .0002 U .1 U .04 U 5.0 U .005 U .01 U 17.9 ' .569 .01 U .1 U .05 U .02 U
2887 15-MAH-88 1.7166 0.0092 0.0002 U 0.0251 0.037 U 14 0-003 J 0.0076 U 19.306 0.1373 0.01 U 0.024 U 0.02 U
2887 12-MAY-88 3.1309 0.0304 0.0002 U 0.1347 0.037 U 5.2 0.005 U 0.0076 U 92.0039 0.2427 0.01 U 0.0992 0.0489
2887 20.fEI.89 6.2484 0.0295 0.0002 U 0.0902 0.022 U 5.6 0.002 " 0.004 U 142.8783 0.4937 0.001 U 0.034 U 0.0364
3187 29-OCT -87 O. U57 0.0051 U 0.0568 0.037 U 0.0076 U 78.5306 0.1768 0.1137 .0.0237
3187 10-MAH-88 0.1307 0.0051 U 0.0002 U 0.0464 0.037 U 4.3 0.005 U 0.0076 U 67.1358 0.1962 0.01 U 0.024 U 0.02 U
3187 12-MAY-88 0.373 0.0051 U 0.0002 U 0.0408 0.037 U 3 0.005 U 0.0076 U 69.2078 0.1697 0.01 U 0.036 U 0.0258
3187 ZS.AIJG-88 0.7221 0.0051 U 0.0002 U 0.044 0.037 U 3 0.005 U 0.0076 U 72.9478 0.2119 0.01 U 0.036 U 0.0306
3187 22-1IOV-88 1_0221 0.0051 U 0.0002 U 0.0309 0.037 U 2.2 0.005 U 0.0076 U 80.6209 0.2277 0.01 U 0.036 U 0.104 1
3187 22-fEI-89 1_1088 J 0.0024 J 0.0002 U 0.027 U 0.022 U 2.45 J 0.001 U 0.004 U 70.2818 0.1968 J 0.001 U 0.034 U 0.0207
31.7 11-MY-89 1.3554 J 0.0023. .0002 U 0.0276 J 0.022 U 3.26 " .001 U 0.004 U 76.4808 0.2119 .001U 0.034 U 0.008 U
3187 18..'.90 3.75 IE 0.003 I 0.0002 U 0.0151 I 0.004 U 2.6' 0.002 U 0.003 U 81.7 E 0.275 E 0.003 U 0.0155 I 0.0024. 0.005 I
I-V.t.. t..s th8l'l Contract ...,Irld Detection LI.lt (CRDU but gre.ter then ".t..-t Detectton Lt.1t (lDU
*aOupticate anatYlI. not Mlth1n controt tt.lt.
UeAnet Yled but not detectld J"r..lI1t betOM detection t 1.1 t E-E.tt..ted V.tue
-------
Pelle No. 9
GroUl.I 11..ter DI..olved "et.1 Result.
E..t Trench.. Are.
...ult. reported In 88'1
well Date AlUll1UI Ant 18DnY Ar.enlc larlUl 8eryiliUl C8d8IU1 Calch.. C.sIUi ChrCIIIUl CobiU Copper Iron Lead LltMUI
IIl8ber SIIIIpI tel (AU (AU (A.) (8a) (8.) (Cd) (Ca) (Cs) (Cr) (Co) (Cu) (Fe) (Pb) (LI)
...... ....... ........ ......... ......... ......... ......... ....... ....... ....... ........ ....... ....... ....... ....... .......
3687 15-FE'-89 0.0249 J 0.05 U 0.001 U 0.2179 0.002 U 0.005 U 123.4178 0.005 U 0.009 U 0.029 U 0.004 U 0.0373 J 0.001 U
3687 O9-MY-89 0.0221 J 0.05 U .001 U 0.2216 0.002 U 0.005 U 116.3145 .2 U 0.009 U 0.029 U 0.004 U 0.035 U .001 U
3687 10-!IOV-89 .2 U .06 U .01 U .2 U .005 U .005 U 127 2.5 U .01 U .05 U .025 U .1 U .003 U .1 U
3687 05 - JUN. 90 0.0255 I 0.0185 U 0.0009 U 0.201 0.0009 U 0.0044 U 11. 1.0 U 0.0066 U 0.0033 U 0.0047 U 0.0182 I 0.072. 0.0081 I
3687 29-MJG-9O 0.0673 I 0.0241' 0.001 U 0.178E 0.001 U 0.002 U 121 0.147 U 0.01.' 0.004 U 0.0173' 0.0246 I 0.001 U 0.0107'
3687 12-!IOV-9O 0.0377 I 0.022 U 0.001 U 0.208 0.001 U 0.005 U 140 0.5 U 0.004 U 0.004 U 0.005 U 0'.0202' 0.001 U 0.0106'
3687 19-APR-91 0.0222 I 0.006 U 0.002 U 0.219 0.001 U 0.002 U 141 0.112 U 0.003 U 0.003 U 0.011 U 0.007 U* 0.001 U 0.0031 I
3687 2]-MJG-" 0.0733 I 0.0263 I 0.002 U 0.198 IE. 0.001 U 0.0018 " 26 0.08 I 0.0227 0.0034 I 0.0087 . 0_0153 I 0.001 U 0.0058'
3986 - -SEP-86 0.1 U 0.06 U 0.002 U 0.28 0.005 U 0.005 U 110.0 0.15 U 0.01 U 0.05 U 0.02 U 0.075 U 0.01 U
3986 06-MAy-a7 0.029 U 0.06 U 0.01 U 0.2274 0.005 U 0.005 U 120.5403 0.2 U 0.01 U 0_022 U 0.0063 U 0_0069 U 0.005 U
3986 03-"""-.7 0.0384 0.06 U 0.01 U 0.2166 0.005 U 0.005 U 93.0783 0.2 U 0.01 U 0.022 U 0.0078 0.0274 0.005 U
3986 24-JUL.87 0.0756 0.02 U 0.005 U 0.2411 0.005 U 0.0003 J 112.5738 0.02 U 0.01 U 0.022 U 0.0094 0.0433 0.005 U
3986 12-DEC-87 0.067 0.02 U 0.005 U 0.2244 0.05 U 0.001 U W.rn7 0.02 U 0.01 U 0.022 U 0.0216 0.0661 0.005 U 0.1 U
3986 10-MAR-U 0.029 U 0.02 U 0.005 U 0.2576 0.005 U 0.001 U "'.65'7 0.02 U 0.01 U 0.022 U 0.0063 U 0.0122 0.005 U 0.1.,
well D.te Magnet IUI "1nII_.e Mercury Nol ybderuI Nickel Pota..IUI 5el",IUI 5 Il ver 50diUl . 5trontiUl ThalllUl Tin VanadlUl Zinc
Nweer ...ltel (Mil) (MIl) (Nil) (No) (III) (Ie) (5e) (Ag) (lIa) (Sr) (TU (In) (V) Un)
...... ....... ........ ......... ......... ......... ......... ......... ....... ....... ........ ....... ......... ....... ......... .......
3687 15-FEt-a9 10.3045 0.1653 0.0002 U 0.027 U 0.0347 J 1.5" .00"" 0.004 U 14.2014 0.4245 0.001 U 0.034 U 0.03
3687 O9-"'Y'89 10.3512 0.1255 .0002 U 0.027 U 0.022 U 1.85 J .001 U 0.004 U 11.9917 0.4332 .001 U 0.034 U 0.008 U
3687 10-1IOV-89 10.5 _041' .0002 U .1 U .04 U 5.0 U .005 U .01 U '.74 ' .336 .01 U .1 U '.05 U .02 U
3687 05-8-90 9.13 0.0031' 0.0002 U 0.0059 U 0.007 8 0.867 8 0.0017' 0.0045 U '.62 0.318 t 0.0016 U 0.0302 U 0.0013 t 0.0045 t
3687 29-MJG-9O 9.2 E 0.0141' 0.0002 U 0.0026 . 0.0103' 0.857' 0.001 U 0.0077 t 268 O.J03 0.003 U 0.0324 . 0.0104 t 0.0101'
3687 12-1IOV-9O 10.3 0.0119 t 0.0002 U 0.009 U 0.0126' 1.75' 0.002 U 0.0096' 9.67 0.291 0.002 -U 0.03 U 0.0068 t 0.0045'
3687 "-APl-" . 10.8 0.0254 0.0002 U 0.002 U 0.003 U 0.879 t 0.002 U 0.002 U 10.4 0.377 0.001 III 0.01 U 0.002 U 0.01 t
3687 8-MJG-" '_47 . 0.0066 . 0.0002 U 0.0044 t 0.0112 t 0.'29 IE 0.002 U 0.0044' '.36 0.J17 0.002 U 0.0151 8 0.0012 t 0.0085 I
3986 -SE'-86 9.57 0.035 0.0002 U 0.1 U 0.04 U 1.78 0.002 U 0.01 U 17.3 0.58 0.01 U 0.025 U 0.005 U
3986 06-MY-87 11 .8066 0.0067 0.0002 U 0.022 U 0.037 U 5 U 0.005 U 0.0076 U 15.8685 0.5293 0.01 U 0.024 U 0.02 U
3986 03-""-87 10.0903 0.0051 U O.OOOZ U 0.022 U 0.037 U 5 U 0.005 U 0.0076 U 15.5111 0.4562 0.01 U 0.024 U 0.02 U
3986 24'M-87 11.0669 0.0084 0.005 0.022 U 0.037 U 1.1 0.002 J 0.0076 U 16, 0.4936 0.01 U 0.0289 0.0563
3986 12-DEC-87 10.1957 0.0064 0.0002 U 0~022 U 0.037 U 1.2 ' 0.005 U 0.0076 U 14.1~.. 0.465 0.111 U 0.024 U 0.0279
3986 10-MR-II 11 .4966 0.0054 0.0002 U 0.022 U 0.037 U 0.9 0.005 U 0.0016 U 16.2557 0.5017 0.01 U 0.0258 0.02 U
'.Value Ie.. than Contract RlCfJlrld Detec:tlon Lt.lt (CRDLJ but gre.ter than InttMlllnt Detec:tlon LI.ft (lDLJ
*-oupllcate analyel. not within control 11.lt.
U-Anel yzed but not detec:ted 'cPre.ent belOtol detection ...ft E-E.tl..ted Value
-------
P8IIe 110. 8
Ground Vater Dillotved Metal Relutta
Eelt Trenchel Are.
Re.utta reported In 88,t
Vell O.te At..l,.. Antl~ Arlenlc Barl.. Berytt hili Cachl.. Cetcl.. Cel hili ChrCl81.. Cobatt Copper Iron Le8d Llthl..
llueer SlIIIIpt 8d (At) (At) (AI) (Ba) (Be) (Cd) (Ca) (CI) (Cr) (Co) (Cu) (Fe) (Pb) (LI)
...... ....... ........ ......... ......... ......... ......... ....... ....... ........ ....... ....... ....... ....... .......
3481 12-MY-88 0.1204 0.034 U 0.005 U 0.0463 0.001 U 0.005 U 17.8546 0.02 U 0.0111 0.022 U 0.0128 0.0802 0.005 U
3487 20-FEB-89 0.0442 J 0.05 U .0024 J 0.0441 J 0.002 U 0.005 U 15.7051 0.005 U 0.009 U 0.029 U 0.0044 J 0.0764 J 0.001 U
3487 1J-DEC'89 .2 U .06 U .0036 .2 U .005 U .005 U 18.5 1-0oU .01 U _05 U .025 U .1 U .0026 5.0 U
3487 21'MI!'90 0.035 U 0.026 U 0.0022 B 0.0537 8 0.001 U 0.002 U 18.8 0.05 B 0.005 U 0.004 U 0.005 U 0.0192 8 0.001 U 0.0385'
3487 26-JUII-90 0.2 U 0.06 U 0.01 U 0.2 U 0.005 U 0.005 U 21 0.1 U 0.01 U 0.05 U 0.025 U 0.1 U 0.003 U 0.1 U
3481 28'1IOV-90 0.0214 B 0.0093' 0.002 U 0.0579 B 0.001 U 0.002 U 19.7 0.076 U 0.005 U 0.003 U 0.002 U 0.0166' 0.001 tAl 0.033'
3487 15-JAII-91 0.0299 B 0.008 U 0.002 U 0.0565 . 0.001 U 0.002 U 19.6 0.076 U 0.005 U 0.003 U 0.0115' 0.0507' 0.001 U 0.0348 8
3487 16-APR-91 0.0274' 0.008 U 0.002 . 0.065 8 0.001 U 0.002 U 21.5 0.112 U 0.005 U 0.003 U 0.0027' 0.017' 0.001 U 0.0612'
3487 05-SEP-91 0.002 U 0.5 U 0.0019' 0.05 U
3687 06-1IOV-87 0.0321 0.1858 98.4384 0.01 U 0.022 U 0.0109 0.0261
3681 10'MAR-88 0.029 U 0.02 U 0.005 U 0.11 0.005 U 0.001 U 110.3891 0.02 U 0.01 U 0.022 U 0.0063 U 0.0122 0.005 U 0.1 U
3687 05-MY-88 0.068 0.034 U 0.005 U 0.1176 0.001 U 0.005 U 104.1592 0.02 U 0.022 0.022 U 0.0065 0.0303 0.005 U
3687 19-AUG-88 0.029 U 0.034 U 0.005 U 0.1435 0.001 U 0.005 U 112.5575 0.02 U 0.0154 0.022 U 0.0063 U 0.0295 0.005 U
3681 10-1IOV-88 0.0294 0.034 U 0.005 U 0.1669 o.oiu U 0.005 U 111.3045 0.02 U 0.01 U 0.022 U 0.0063 U 0.0118 0.005 U
Vell Date "''''11.. M8I'III-e Mercury Motybderul IIlcket pot"II.. Setenl.. 5 It ver Sodl.. Strontl.. Thettl.. Tin Ven8dI.. Zinc
llillber SlIIIIpt 8d (Me) (Mil) (HII) (No) (lit) (I) (58) (AI) (lie) (Sr) (Tt) (In) (V) (In)
...... ....... ........ ......... ......... ......... ......... ......... ....... ....... ........ ....... ......... ....... ......... .......
3481 12-MY-88 2.8998 0.0106 0.0002 U 0.0358 0.037 U 2.5 0.005 U 0.0076 U 67.5259 0.1978 0.01 U 0.036 U 0.0294
3487 20-FE'-89 4.114 J 0.0099 J 0.0002 U 0.027 U 0.022 U 2.8 J 0.001 U 0.004 U 78.442 0.2345 0.001 U 0.034 U 0.0184 J
3487 13-0EC-89 5.0 U .015 U .0002 U .1 U .00'U 5.0 U .0023 .01 U 70.4' .245 .003 U 1.0 U .05 U .02 U
3481 0 21-MAR-90 5.12 !).0066 . 0.0002 U 0.035 U 0.006 U 2.42 . 0.003 U 0.006 U R.1 0.276 0.001 UII 0.025 U 0.006 U 0.015 .
3481 26-JUII-90 6.04 0.015 U 0.0002 U 0.1 U 0.04 U 5.0 U 0.005 U 0.01 U 85.3 0.508 0.01 U 0.1 U 0.05 U 0.0491
3487 28-!IOV-90 5.65 0.0062 . 0.0002 U 0.0094 . 0.004 U 2.33 IE 0.001' 0.003 U 71.2 E 0.274 0.002 U 0.007 U 0.0038' 0.0119'
3487 15-JAI-91 5.81 0.0081' 0.0002 U 0.0076 . 0.004 U 2.59 . 0.002 IV 0.005 U 65 0.266 0.005 U 0.011 U 0.0066' 0.0128'
3481 16-APR-91 5.95 0.0078 . 0.0002 U 0.001 . 0.004 U 2.56 IE 0.002 UII 0.0031' R.9 0.502 0.001 U 0.011 U 0.0089' 0.0028'
3481 OS-IEP-91 . 0.0002 U 0.01 U 0.0012 . 0.297 0.001 U 0.1 U
3687 06'1OV-87 9.6752 0.3544 0.022 U O.OS48 0.0076 U 11.0671 0.3658 0.024 U 0.0365
3687 10.MAR-88 8.5566 0.0916 0.0002 U 0.022 U 0.031 U 0.7 0.005 U 0.0076 U 9.5131 0.2984 0.01 U 0.024 U 0.0225
3681 OS-MY-88 8.5449 0.0486 0.0002 U 0.022 U 0.037 U 0.9 0.005 U 0.0076 U 9.4793 O.28R 0.01 U 0.036 U 0.02 U
3681 19-AtJG-88 8.6749 0.0499 0.0002 U 0.022 U 0.037 U 0.9 0.005 U 0.0076 U 8.8509 0.295 0.01 U 0.056 U 0.02 U
3681 10-110\/-88 8.8751 0.0879 0.0002 U 0.022 U 0.031 U 0.9 0.005 U 0.0076 U 9.2711 00.3325 0.01 U 0.036 U 0.0227
'-Vetue t..a then Contreet Requlr8d Detection Lt.tt (CADL) but greater then I"'tr~t Detection LI.lt (lDL)
.-Duptlcate anatysla not withIn controt tl.lta
U-An8t yz8d but not det.ct8d J-Prelent bet ow detection tl.lt E-Eatl..ted Value
-------
P."e 110. 11
Ground Water Dlslolved Metal R..ulta
Ealt Trenchea Are.
Resulta reported In 88'1
well D.tl AI..11UI Antlla'lY Arsenic Ilrl.. BerylUue Cedlnh.. C.lclue Cell.. Chr08l.. Cobalt Copper Iron Lead Llthl..
llueber IBllpI ed CAI) CAI) CAI) (Ba) (Be) (Cd) (CI) (Ca) (Cr) (Co) (C,,) (Fe) (Pb) eLl)
...... ....... ........ ......... ......... ......... ......... ....... ....... ....... ......... ....... ....... ....... ....... .......
4086 I1-W-88 0.029 U 0.02 U 0.005 U 0.054 0.005 U 0.004 76.2347 0.02 U 0.01 U 0.022 U 0.0063 U 0.0227 0.005 U 0.1 U
4086 12-.'-88 0.029 U 0.034 U 0.005 U 0.0476 0.001 U 0.005 U 67.6288 0.02 U 0.01 U 0.022 U 0.0101 0.0228 0.005 U
4086 11-."89 0.0329 J 0.05 U .001 U 0.0621 J 0.002 U 0.005 U 82.9747 .2 U 0.009 U 0.029 U 0.004 U 0.035 U .001 U
4086 13-DEC-89 .D364 .5 U .002 U .0598 .002 U .004 U 77.2 1.0 U .02 U .02 U .02 U .0845 .0032, .051
4086 20-SEP-9O 0.0249 B 0.0138. 0.002 U 0.0616 . 0.001 U 0.002 UII 76 0.092 U 0.0065 B 0.003 U 0.002 UE 0.014 U 0.001 0.05 .
4086 28-1IOV-9O 0.0434 I 0.0189 I 0.002 U 0.0589 B 0.001 U 0.002 U 77.2 0.076 U 0.0092 . 0.003 U 0.0028 I 0.014 U 0.001 U 0.0383 I
4086 11- JAII-91 0.046. 0.02 I 0.002 U 0.0588 B 0.001 U 0.002 U 71.7 0.076 U 0.0144 0.003 U 0.0041 I 0.0102. 0.001 U 0.0382 I
4086' 16-APR-91 0.104 I 0.0111 I 0.002 U 0.0648 I 0.001 U 0.002 U 76.1 0.112 U 0.0053 i 0.003 U 0.002 U 0.0801. 0.001 U 0.0642 I
4086 06'SEP'91 0.1 U 0.05 U 0.002 U 0.1 U 0.002 U 0.0089 105 0.5 U 0.005 U 0.01 U 0.01 U 0.05 U 0.001 B 0.0587 I
4186 -SEP-86 0.1 U 0.05 U 0.002 U 0.1 U 0.005 U 0.005 U 96.9 0.15 U 0.01 U 0.05 U 0.02 U 0.075 U 0.01 U
4186 06-.'.87 0.029 U 0.06 U 0.01 U 0.1802 0.005 U 0.005 U 130.3624 0.2 U 0.01 U 0.022 U 0.0063 U 0.0069 U 0.005 U
4186 01-JUII-87 0.029 U 0.06 U 0.01 U 0.1372 0.005 U 0.005 U 41.9511 0.2 U 0.01 U 0.022 U 0.0077 0.5796 0.005 U
4186 21-JUL-87 0.0397 0.02 U 0.005 U 0.1832 0.005 U 0.001 U 111.9865 0.02 U 0.01 U 0.022 U 0.0112 0.0112 0.005 U
4186 a-OCT-87 0.0679 0.006 J 0.005 U 0.2023 0.004 J 0.001 U 105.3990 0.02 U 0.0123 0.022 U 0.0103 0.0789 0.005 U 0.01 ,J
well Det. .........1.. Meng_l. ...rcury Mol ytIdeft8 IIIckel Pote..I.. Selenl.. 5 II V8r Sod I.. Strontl.. Theil I.. . Tin Venadl.. Zinc
lIumer SBllpled CMt) (Nt) ("I) (Mo) (lit) (K) (II) (AI) (II.) (Sr) (TI) CIn) (V) (Zn)
...... ....... ........ ......... ......... ......... ......... ......... ....... ....... ........ ....... ......... ....... ......... .......
4086 I1-W-88 17.6838 0.0432 0.0002 U 0.0256 0.037 U 5.3 0.004 J 0.0291 99.9352 0.8327 0.01 U 0.024 U 0.0269
4086 12-.'-88 18.657 0.0125 0.0002 U 0.022 U 0.0378 3.8 0.005 U 0.0076 U 90.0279 0.7155 0.01 U 0.036 U 0.038
4086 11-."89 18.616 0.0052 J .0002 U 0.027 U 0.0324 J 5.21 .22 J 0.004 U 110.4148 0.8904 .001 U 0.034 U 0.008 U
4086 13-DEC-89 17.1 .0157 .0002 U .5 U .02 U 3.8 .002 U .03 U 102 .789 .003 U 1.0 U .01 U ~0207
4086 20-SEP-9O 18 0.002 . 0.0002 U 0.0066 I 0.004 U 3.64 . 0.003 I 0.003 U 100 0.77 0.002 0.0225 I 0.0036 I 0.0207
4086 28-1IOV-9O 17.7 0.0013 I 0.0002 U 0.0072 I 0.004 U 3.49 IE 0.004 . 0.003 U 97E 0.785 0.002 U 0.0116 . 0.0054' 0.0292
4086 I1'JAII-91 17.9 0.0025 . 0.0002 U 0.0081 . 0.0059' 3.37 I 0.006 I 0.003 U 91.3 0.755. 0.003 U 0.0307 . 0.0074' 0.0246
4086 16-AP.-91 17.5 0.001 U 0.0002 U 0.0031' 0.004 U 3.96 IE 0.002 0.0039' 110 0.809 0.001' .0.0286' 0.0047 I 0.0349
4086 O6.IEP.91 28.6 0.0072 . 0.0002 U 0.0105 . 0.0578 2.05 . 0.001 U 0.0054' 45.2 0.887 0.001 U 0.1 U 0.01 U 0.0206
4186 'IEP-86 15.6 0.854 0.0002 U 0.1 U 0.04 U 3.72 0.002 U 0.01 U 51.3 0.42 0.01 U 0.025 U 0.005 U
4186 06-*'-87 17.7762 0.229 0.0002 U 0.022 U 0.031 U 3 0.005 U 0.0076 U 25.9055 0.6754 0.01 U 0.024 U 0.02 U
4186 01'JUII-87 16.0342 0.0051 U 0.0002 U 0.022 U 0.031 U 8.2 0.005 U 0.0076 U 18.0695 0.5429 0.01 U 0.024 U 0.02 U
4186 21-.""-'87 16.1562 0.0754 0.0002 U 0.022 U 0.0613 3.1 0.005 U 0.0076 U 18.2521 0.5832 0.01 U 0.0366 0.02 U
4186 a'OCT.87 15.9402 0.0186 0.0002 U 0.022 U 0.0754 2.1 0.005 U 0.0076 U 19.4115 0.5712 0.01 U 0.024 U 0.0786
I-V.lue I... then Contr..,., 'I.Ired D.tectlon Lt." CCRDl) but Ir.lter than InatrWllnt Dltectlan LI.lt (lDl)
*aOupllcltl enalyala not h'l~ln control II.It.
U-AnIlyzed but not detected Japr..ent below detection II.It E-Eatl..ted Vllue
-------
Peie "0. 10
Ground Vater Dlasolved Met.l Reaulta
Eaat Trenches Are.
Result. reported In -ell
Vau Date AIUlI,.. Ant!8OITf Ar.enlc larllA leryU IIA CIICbIUi Calchn CesllA Chr-11A Cobalt Copper Iron Lead LlthlUl
"Ulber IlIIIpled 4At) (At) (A.) (8a) (8e) (Cd) (Ca) (C.) (Cr) (Co) (Cu) (Fe) (Pb) (LI)
....... ........ ......... ......... ......... ......... ....... ....... ....... ........ ....... ....a.. ....... .......
3986 05-",,'-88 0.0313 0.034 U 0.005 U 0.2264 0.001 U 0.005 U 108.6039 0.02 U 0.01 U 0.022 U 0.0188 0.0429 0.005 U
3986 "-AUG-88 0.029 U 0.034 U 0.005 U 0.2536 0.001 U 0.005 U 110.9536 0.02 U 0.0117 0.022 U 0.0063 U 0.0112
3986 10-1ICJV-88 0.0421 0.036 0.005 U 0.2459 0.001 U 0.005 U 109.9309 0.01 U 0.022 U 0.0063 U 0.0683
3986 15-FEI-89 0.1226 J 0.05 U .0014 J 0.2688 0.002 U 0.005 U 111.4549 0.005 U 0.009 U 0.029 U 0.004 U 0.1801 0.001 U
3986 09-",,'-89 0.0338 J 0.05 U .001U 0.263 0.002 U 0.005 U 110.9209 .2 U 0.009 U 0.029 U 0.004 U 0.035 U .001 U
3986 10-!IOV-89 .2 U .06 U .01 U .282 .005 U .005 U 122 2.5 U .01 U .05 U .025 U .1 U .003 U .1 U
3986 04.JtJII-9O 0.0177 8 0.0183 U 0.0009 U 0.275 0.0009 U 0.0044 U 117 1.0 U 0.0066 U 0.0033 U 0.0121 8 0.0294 1 0.003 0.0104 8
3986 09-AUG-9O 0.04" 8 0.01 U 0.001 U 0.292 E 0.001 U 0.002 U 124 0.4 8 0.007 8 0.004 U 0.0039 8 0.0164 8 0.001 U 0.0096 8
3986 01-l1OV-9O 0.0549 1 0.007 U 0.001 U 0.236 0.001 U 0.002 U 110 0.2 1 0.0161 0.003 U 0.0041 1 0.0185 1 0.001 U 0.0067..
3986 19-MM-91 0.0455. 0.008 U 0.002 U 0.202 0.001 U 0.002 U 106 0.076 U 0.012 0.003 U 0.0015 1 0.0137 1 0.001 U 0.0.141.
3986 "'",,"91 0.0324' 0.0377 B 0.002 U 0.197 B 0.001 U 0.002 U 101 0.112 U 0.0068 B 0.003 U 0.011 U 0.012 B 0.001 UV 0.0088 8
3986 16-AUG-91 0.0714 I 0.008 U 0.002 U 0.1n IE 0.001 U 0.001 U 93.2 0.032 U 0.0091 I 0.002 U 0.0062 I 0.002 U 0.001 U 0.0092 8
4086 06-",,'-87 0.4668 0.06 ti 0.01 U 0.0719 0.005 U 0_005 U 152.5210 0.2 U 0.01 U 0.022 U 0.013 0.2'" 0.005 U
4086 27-OCT-87 0.0561 0.02 U 0.005 U 0.0729 0.005 U 0.0003" 75.248 0.02 U 0.027 0.022 U 0.0092 0.0955 0.005 U 0.04."
VaH Date M8gnee IUI Mqlnlle . Mercury Molybderul Nlcltel Pot...IUI SelenlUl Sliver SodlUl StrantiUl ThaU IUI Tin V8n8dIUi Zinc
"Ulber IIIIIpI ed (HI) (HI) (HI) (No) (Iii) (Ie) (S.) (AI) ("a) (Sr) (TI) (In) (V) Un)
...... ....... ........ a........ ......... ......... ......... ......... ....... ........ ......... ....... .........
3986 05-",,'-88 11.6715 0.0051 U 0.0002 U 0.022 U 0.037 U 1 0.005 U 0.0408 15.931 0.4938 0.01 U 0.036 U 0.026Z
3986 "'AUG'88 11.5095 0.0051 U 0.0002 U 0.022 U 0.037 U 1 0.005 U 0.0076 U 18.15\9 0.482 0.01 U 0.036 U 0.0241
3986 10-!IOV-88 11.2983 0.0051 U 0.0002 U 0.022 U 0.037 U 0.8 0.005 U 0.0076 U 16.8616 0.5387 0.01 U 0.036 U 0.0436
3986 15-'EI-89 12.2016 0.0032 .. 0.0002 U 0.027 U 0.022 U 1.1 J 0.001 U 0.004 U 19.2897 0.5371 0.001 U 0.034 U 0.0431
3986 09-",,' -89 12.039 0.0043 .. .0002 U 0.027 U 0.022 U 1.28 J .001 U 0.004 U 18.8055 0.5335 .001 U 0.034 U 0.008 U
3986 10-8101/'19 13.4 .0171 .0002 U .1 U .04 U 5.0 U .005 U .01 U 19.3 .541 .01 U .1 U .05 U .0522
3986 04.JU8I.9O 1].1 0.0012 U 0.0002 U 0.0059 U 0.0092' 0.986 I 0.0017 U 0.0045 U 18.5 0.536 I 0.0016 U 0.0302 U 0.0054' 0.0075 B
3986 Of-AUG'9O 13.9 0.001 U 0.0002 U 0.0022 I 0.004 U 1.19 I 0.002 U 0.002 U 22.7 0.58J 0.001 U 0.01]1 I 0.0095 I 0.0075'
3986 01-8101/-90 15.1 0.001 U 0.0002 U 0.0058 I 0.0089 I 1.5 IE 0.001 tJII 0.0037 1 19.1 0.539 0.002 U 0.0456 1 0.0088 I 0.0056'
3986 "'MI-" 1] 0.001 U 0.0002 U 0.012 . 0.004 U 1.53 IE 0.002 U 0.0036 1 22.] 0.5n 0.001 UV 0.026 I 0.0084' 0.0262
]986 "."",." 12.2 0.001 U 0.0002 U 0.0089 I 0.0068 I 1.6 I 0.001 UV 0.002 U 22.9 0.54 0.001 U 0.0162 I 0.002 U 0.0135 .
3986 "'AUG-" 11.3 0.0013 . 0.0002 U 0.0053 I 0.00]9 I 1.49 I 0.001 I 0.002 U 21.6 0.513 0.002 U 0.014 U 0.006Z' 0.006'
4086 06'",,"87 31.2705 0.5351 0.0002 U 0.1035 0.0551 6 0.005 U 0.0076 U 134.5506 1.4881 0.01 U 0.024 U 0.05
4086 27-CICT -87 17.0217 0.1816 0.0002 U 0.0497 0.0468 3.9 0.005 0.0076 U 101.0152 0.8204 0.01 U 0.024 U 0.0229
I-Value I... thin Contract lequlrld D.tectlon LI.lt (CRDL) but Ireater than lnatr~t Detection LI.lt (lDL)
--Duplicate anal vall not within control 11.lt.
U-An81 )'Ied but not detected "aPre.ent below detection 1I.1t E-Eatl..ted V.lue
-------
Plge 110. 13
Ground Wlter Dillolved Metel Relultl
Ellt Trenchel Aree
leaultl reported In -V,I
We" Olte AlUlI.... Antlimny Arsenic BlrlUl Bery" IUI Cecah.. Celc:IUI Celllll Chraallll CobIlt Copper Iron Leed LlthlUl
IIUllber S8IIpI ed (AU (AI) (AI) (BI) (Be) (Cd) (CI) (CI) (Cr) (Co) (Cu) (fe) (Pb) (In
.._a. ....... ........ ......... ......... ......... ......... ......a: ....... ....... ........ ....... ....... ....... ....... .......
4286 25-AUG-88 0.029 U 0.034 U 0.005 U 0.2003 0.001 U 0.005 U 114.3637 0.02 U 0.01 U 0.022 U 0.0063 U 0.0166 0.005 U
4286 1NIOV-88 0.029 U 0.034 U 0.005 U 0.2084 0.001 U 0.005 U 138.1292 0.02 U 0.01 U 0.022 U 0.0063 U 0.0198 0.005 U
4286 2O-fEI'89 0.1024 J 0.05 U 0.001 U 0.2517 0.002 U 0.005 U 137.1833 0.005 U 0.0149 0.029 U 0.004 U 0.2002 0.001 U
4286 09-MA'-89 0.0259 I 0.05 U .001 U 0.2153 0.002 U 0.005 U 152.5537 .2 U 0.009 U 0.029 U 0.0533 0.035 U .001 u.
4286 06-DEC-89 .2 U .06 U .01 U .227 .005 U .005 U 121 2.5 U .01 U .05 U .025 U .1 U .003 U .1 U
4286 1 hlUll-9O 0.37 0.06 U 0.01 U 0.203 0.005 U 0.005 U 128 0.1 U 0.01 U 0.05 U 0.025 U 0.1 U 0.003 U 0.1 U
4286 24.AUG'9O 0.0399 B 0.01 U 0.001 U 0.194 B 0.001 U 0.002 U 123 0.147 UII 0.0093 8 . 0.004 U 0.003 U 0.013 UII 0.001 UN 0.0075 B
4286 16-1IOV-9O 0.0653 B 0.0117 I 0.002 U 0.219 0.001 U 0.002 U 144 0.2 B 0.016 0.003 U 0.0077 I 0.0228 I 0.001 U 0.006 I
4286 17-MA'-91 0.0495' 0.0199' 0.002 U 0.26 0.001 U 0.002 U 161 0.112 U 0.0036 B 0.003 U 0.011 U 0.0093' 0.001 U 0.0048 1
6786 -1IOV-86 0.1 U 0.055 U 0.01 U 0.243 0.005 U 0.005 U 49.8 0.15 U 0.01 U 0.02 U 0.02 U 0.075 U 0.005 U
6786 11'MA'-87 0.0434 0.06 U 0.01 U 0.0909 0.005 U 0.005 U 88.8143 0.2 U 0.01 U 0.022 U 0.0091 0.0223 0.005 U
6786 01-JUII-87 0.029 U 0.06 U 0.01 U 0.1412 0.005 U 0.005 U 85.1284 0.2 U 0.01. U 0.022 U 0.D06S U 0.0069 U 0.022
6786 Z1-JUL-87 0.0379 0.02 U 0.005 U 0.0824 0.005 U 0.001 U 84.8549 0.02 U 0.01 U 0.022 U 0.0175 0.0531 0.005 U
6786 12-JUII-9O 0.273 0.06 U 0.01 U 0:2 U 0.005 U 0.005 U 64.7 0.1 U 0.01 U 0.05 U 0.025 U 0.1 U 0.003 U 0.1 U
we" Olte "lgnellUi "Inglnue ...rcury MolybdeB.D Nlc:kel Pote..11II S.lenlllS SHver SodlllS StrontlllS Thel I h.. tin V8n8d11lS ztnc:'
IIWllber S8IIIp1 ed (Me) (Me) (He) (No) (lilt) (I:) (5e) (Ag) (NI) (Sr) (Tt) (In) (V) (Zn)
...... ....... ........ ......... .....-.-.. ......... ......... ......... ....... ....... ........ ....... ......... ....... ......... .......
4286 ZS-AUG-88 10.2131 0.0133 0.0002 U 0.022 U 0.0317 1.2 0.005 U 0.0076 U 17.863 0.4498 0.01 U 0_036 U 0.0283
4286 17-1IOV'88 11 .1878 0.0143 0.0002 U 0.022 U 0.on1 0.7 0.005 U 0.0076 U 18.1312 0.512 0.01 U 0.036 U 0.02 U
4286 20-fEI-89 12.7926 0.2628 0.0002 U 0.0605 0.6822 1.15 J 0.001 U 0.004 U 16.9611 0.5138 0.001 U 0.034 U 0.0384
4286 09-MAY-89 13.4631 0.0052 J .0002 U 0.027 U 0.022 U 1.52 J .001 U 0.004 U 17.68n 0.5487 .001 U 0.034 U 0.0209
4286 06-0EC-89 11.7 . .015 U .0002 .1 U .04 U 5.0 U .005 U .01 U 15 .532 .01 U .1 U .05 U .02 U
4286 11'JUII.9O 11.5 0.015 U 0.0002 U 0.1 U 0.04 U 5.0 U 0.005 U 0.01 U 15.4 0.457 0.01 U 0.1 U 0.05 U 0.02 U
4286 24'AUG-9O 10.9 0.0014 1 0.0002 U 0.0029 i 0.004 U 1.0 B 0.001 UII 0_0021 B 15.7 0.439 0.003 UII. 0.02n I 0.0016 1 0.0195 B
4286 16-1IOV-9O 12.7 0.0018 1 0.0002 U 0.0114 . 0.0113 1 1.23 B 0.001 U 0.0041 I 15.7 0.481 0.002 0.02 1 0.0016 1 0.011 B
4286 t7-MA'-91 t4.5 0.0051 1 0.0002 U 0.0032 . 0.0284 1 1.2. 0.001 0.002 U t7.7 0.562 0.001 UW 0.0115' 0.002 U 0.0082 B
6786 -1IOV-86 23.2 0.161 0.0002 U 0.1 U 0.02 U 1.0 U 0.005 U 0.016 63.4 .0.719 0.01 U 0.025 U 0.03 U
6786 11-MAY-87 38.092 0.0051 U 0.0002 U 0.022 U 0.037 U 5 U 0.005 U 0.0016 U 91.2838 1.2075 0.01 U 0.024 U 0.02 U
6786 01-JUII-81 n.2019 0.0051 U 0.0002 U 0.022 U 0.031 U 5 U 0.005 U 0.0076 U 80.9195 1.0895 0.01 U 0.024 U 0.0677
6786 21-M-87 52.642 0.0051 U 0.0002 U 0.022 U 0.037 U 0.8 0.003 J 0.0076 U 91.2942 t .0861 0.01 U 0.0359 0.02 U
6786 12-.IUN-9O 27.1 0.015 U 0.0002 U 0.1 U 0.04 U 5.0 U 0.005 U 0.01 U 75.6 0.893 0.01 U 0.1 U 0.05 U 0.02 U
I-VIIUi 1..1 thlO Contrect ...,Ired Detection Ltalt (CIIDL) but greater then lnatr~t Detection Llalt (lDl)
*.oupllc:ate enalvala not within control 11.ltl
U.AneI Yled but not detected "'.Present below detection 11.1t E-Eatl..ted Value
-------
Page 110. 12
Ground Vater Dillotved Metat Relutt.
Ea.t Tranches Area
Reluat. reported In SIII/t
Yell Oat. AtUlI... Ant IIIIOn)' Ar.enlc larlUl leryH 1\8 Cacbh. CatclUl Ce. II... ChrOllh.. Cobett Copper Iron l.ed lIthlUl
IllIIIbar 18IIIpted (At) (At) (A.) (Ia) (Ie) (Cd) (C.) (C.) (Cr) (Co) (Cu) (Fe) (Pb) (LI)
...... ....... ........ ......... ......... ......... 811..11..=8 .....C8 ....... ....... 811...... a...... ....... ....... ....... ........
4186 1HIAR-88 0.029 U .0.02 U 0.005 U 0.1973 0.005 U 0.001 104.4861 0.02 U 0.01 U 0.022 U 0.0063 U 0.0107 0.005 U 0.1 U
4186 O5-MY-88 0.0516 0.034 U 0.005 U 0.1985 0.0027 0.005 U 115.0324 0.02 U 0.01 U 0.022 U 0.0211 0.0284 0.005 U
4186 22-1ICJV-88 0.0692 0.0434 0.005 U 0.2334 0.001 U 0.005 U 129.1391 0.02 U 0.011 0.022 U 0.0063 U 0.0551 0.005 U
4186 20'FE8-89 0.0776 .I 0.05 U 0.001 U 0.2418 0.002 U 0.005 U 126.3n3 0.005 U 0.0126 0.029 U 0.0131 .I 0.1968 .0026 .I
4186 11-MY'89 0.049 .I 0.05 U .001 U 0.2493 0.002 U 0.005 U 125.1505 .2 U 0.009 U 0.029 U 0.004 U 0.035 U .001 U
4186 20-1ICJV-90 0.02 U 0.022 U 0.001 U 0.219 0.001 U 0.005 U 121 0.5 U 0.004 U 0.004 U 0.005 U 0.003 U 0.001 U 0.0101 I
4186 10-JAII.91 0.0514 B 0.0234 8 0.002 U O. In I 0.001 U 0.002 U 92 0.076 U 0.0176 0.0045 I 0.0042 8 0.0614 I 0.001 U 0.0054 I
4286 -IEP-86 0.1 U 0.05 U 0.002 U 0.15 0.005 0.005 U 122 0.15 U 0.01 U 0.05 U 0.02 U 0.075 U 0.01 U
4286 12-MAR-17 2.6303 0.06 U 0.01 U 0.3254 0.005 U 0.005 U 164.5958 0.2 U 0.01 U 0.022 U 0.007 2.1119 0.005 U
4286 26-MY-87 0.029 U 0.06 U 0.01 U 0.1893 0.005 U 0.005 U 145.0887 0.2 U 0.01 U 0.022 U 0.0063 U 0.0109 0.013
4286 24'JUl-87 0.5356 0.02 U 0.005 U . 0.2371 0.005 U 0.0004 .I 130.8069 0.02 U 0.01 U 0.022 U 0.01" 0.3656 0.005
4286 15-OCT-87 0.0385 0.02 U 0.005 U 0.2195 0.001 .I 0.001 U 123.4732 0_02 U 0.0201 0.022 U 0.0063 U 0.0384 0.005 U 0.01 .I
4286 O4-MR-88 0.029 U 0.02 U 0.005 U 0.2023 0.005 U 0.001 U 126.4858 0.02 U 0.01 U 0.022 U 0.0063 U 0.0195 0.005 U 0.1 U
4286 O5-MY-88 0.0503 0.034 U 0.005 U 0.1849 0.001 U 0.005 U 121.5535 0.02 U 0.01 U 0.022 U 0.0593 0.0275 0.005 U
YeU Data Mlgna.fUl Mang.nase Mercury Motybdetui IIlcket Pot...h. SetanlUi SHver Sodh.. ItrontlUl Thltt IUI Tin VanedlUl Zinc
IllIIIber S8IIIpt ed (Mg) (Mg) (Hg) (No) (III) (10 (Se) (Ag) (III) (Sr) (It) (Sn) (V) (Zn)
...... ....... ........ ......... ......... ......... ......... ......... ....... ....... ........ ....... ......... ....... ......... .......
4186 11-MAR-88 15.6787 0.0051 U 0.0002 u. 0.022 U 0.037 U 1.9 0.005 U 0.0076 ~ 16.3165. 0.5817 0.01 u 0.024 U 0.02 U
4186 O5-MY-88 17.1654 0.0051 u 0.0002 U 0.022 U 0.037 U 1.9 0.005 U 0.0295 16.6979 0.5893 0.01 U 0.036 U 0.0377
4186 22.1ICJV-88 16.8428 0.0051 U 0.0002 U 0.022 U 0.037 U 1.2 0.005 U 0.0076 U 19."Q 0.6698 0.01 U 0.036 U 0.0555
4186 20-FEI-89 11.7895 0.0055 .I 0.0002 U 0.027 U 0.022 U 1.85 .I 0.001 U 0.004 U 21.4211 1.6596 0.001 U 0.034 U 0.0565
4186 1'-MY-89 17.0629 0.002 U .0002 U 0.027 U 0.0325" 2.19 .I .001 U 0.004 U 21.3037 0.6416 .001 U 0.034 U 0.008 U
4186 20-1ICJV-90 17.9 0.0015 I 0.0002 U 0.009 U 0.01" 8 0.821 8 0.002 U 0.0031 B 24.9 0.628 0.002 U 0.0586 I 0.0047 I 0.0025 1
4186 10'JAI-91 14.a 0.0174 0.0002 U O.OO5a I O.05n 1.39 I 0.002 tal 0.0034 I 19.a 0.516 0.003 U 0.0288 I 0.008 I 0.0137 I
4286 -IIP-86 11.' 0.578 0.0002 U 0.1 U 0.04 U 1.73 0.002 U 0.01 U 13.4 0.308 0.01 U 0.025 U 0.005 U
4286 12-MAR-a7 14.9256 0.3424 0.0002 U 0.022 U 0.1005 5 U 0.005 U 0.0076 U 17..n2 0.5742 0.01 U 0.24 U 0.03
4286 26-My-a7 13.0698 0.0391 0.0002 U 0.022 U 0.037 U 5 U 0.005 U 0.0076 U 14.4499 0.5034 U 0.01 U 0.024 U 0.02 U
4286 24-JUL-a7 10.9716 0.0203 0.013 0.022 U 0.0375 1.2 0.005 U 0.0076 U 15.3966 0.4566 0.01 U 0.024 U 0.02 U
4286 . 15-OCT-87 10.7988 0.0089 0.0004 0.022 U 0.037 U 1.4 0.005 U 0.0076 U 15.3125 0.4461 0.01 U 0.0393 0.0257
4286 O4-MAR-88 10.1989 0.0051 U 0.0002 U 0.022 U 0.037 U o.a 0.005 U 0.0076 U 14.7025 0.4405 0.01 U 0.024 U 0.02 U
4286 O5-MY'88 10.4139 0.0051 U 0.0002 U 0.022 U 0.037 U 0.9 0.005 U .0.128 14.7554 0.4071 0.01 U 0.036 U 0.0559
I-Vltua te.. then Contract Required Detection If.1t (CRDl) but greater than InstrUllnt Detection LI.lt (lDl)
*-ouptlcltl anatysl. not Mlthln controt tl.lt.
U-Anatyzed but not detected ...pr..ant betCMI detection iI.lt E-E.tl..ted VltU.
-------
GROUND-WATER SAMPLING RESULTS
-------
Page Ho. 14
Ground Water Dissolved Metel Results
Eest Trenche. Aree
Resutts reported In ..,t
Wett Dete AtUlI.... Ant I IIIInV Ar.enlc BulUl Berytt 118 ClCbha C.tciUl Ce.IUI Chr08lU1 Cobalt Copper Iron leld LlthlUl
Hlllber IlIIIIpt ed. (At) (At) (AI) (Be) (Be) (Cd) (C.) (C.) (Cr) (Co) (Cu) (Fe) (Pb) (ll)
...... ....... ........ ......... ......... ......... ......... ....... ....... ........ ....... ....... ....... ....... .......
6786 ZZ-AUG-9Q 0.0178 8 0.01 U 0.002 U 0.0953 8 0.001 U 0.002 U 66.8 0.147 U 0.006 U 0.004 U 0.0055 B 0.013 U 0.001 U 0.0362 1
8218789 13-SfP-9Q 0.0708 0.0216 1 0.002 U 0.127 8 0.001 U 0.002 U 99.5 0.092 U 0.0207 0.003 U 0.0142 8 0.0258 0.0011 8 0.01.8
1218789 22'OI:T -90 0.0649 8 0.007 U 0_002 U 0.134 BE 0.001 U 0.002 U 104 0.076 U 0.0192 0.003 U 0.0029 B 0.0314. 0.001 UW 0.02 B
1218789 08-MAR-91 0.0682 8 0.008 U 0.002 U 0.108 B 0.001 U 0.002 U 111 0.076 U 0.005 U 0.003 U 0.002 U 0.0462 1 0.001 UW 0.0053'
1218789 21-MY-91 0.0566' 0.0082' 0.002 U 0.131 8 0.001 U 0.002 U 102 0.112 U 0.0032 8 0.003 U 0.011 U 0.0142 8 0.001 U 0.0064 1
,218789 20-AUG-91 0.0765' 0.008 U 0.002 U 0.128 IE 0.001 U 0.001 U 99.8 0.07 I 0.0058 I 0.002 U 0.003 U 0.083 8 0.001 U 0.0058 1
Well Dete .......1- MIIng_.. Mercury Mot ybdenue Hlcket Pote..IUI Setenll8 Sliver SodlUl Strontll8 Thet t 118 Tin Venedll8 Zinc
Hlllber S8IIpl ed (Mg) (Mg) (Hg) (Mo) (HO (IC) (5e) (Ag) (He) (Sr) (Tl) (5n) (V) (In)
...... ....... ........ ......... ......... ......... ......... ......... ....... ....... ........ ...1:... ..0:...... ....c.. ......... .......
6786 22-AUG.9Q 26.9 0.0071 B 0.0002 U 0.0094 B 0.0493 0.716 8 0.002 U 0.002 U 82.2 0.904 0.003 0.023 8 0.0071 8 0.0028
1218789 1J-SfP-9O 9.25 0.0097 . 0_0002 U 0.0063 B 0.0067 B 1.16 B 0.002 U 0.0047 B 18.7 0.36 0.001 UW 0~0179 B 0.0143 B 0.0075 8
1218789 22-OCT-90 9.02 0.0016 1 0.0002 U 0.0087 B 0.0063 I 1.06 I 0.002 U 0.0089 1 17_8 0.367 0.002 0_0412 1 0.0105 B 0.003 1
1218789 08-MAR-" 9.84 0.0049 . 0.0002 0.003 U 0.004 U 1.18 BE 0.02 WN 0.003 U 15.7 0.389 . 0.001 UW 0.0391 I 0.003 . 0.0091 1
IZ18789 Z1-IIAY-" 9.07 0.001 U 0.0002 U 0.002 U 0.003 U 0.943 I 0.001 I 0.002 U 19 0.368 0.001 U 0.01 U 0.0029 8 0.0096 8
B218789 20-AUG-91 8.83 0.001 U 0.0002 U 0.003 U 0.003 U 0.914 8 0.001 U 0.002 U 19 0.381 0.002 U 0.014 U 0.0066 B 0.0052'
,
I.Vetue tea. thlf'l Contrec:t .lqIIlred Detection Li.it (CRDL) but gr.eter then ".trl88nt D.tectlon LI.lt (lDL)
*aDuptlcete enetval. not Mlthln control 11.lt.
UaAneIVZed but not detected .Iatlr..ant balON detection 1I.lt
A.Acceptabte Mlth quetlftcetlona V.Velld end acceptabte
E.E.tl..ted Ve'ue
-------
Pege 110.
Ground Water Totat Het.t .e.utt.
Mound Area
.e.utt. reported In Me/'
Wett D.te A'UlI- Antl~ Areenlc Sarlua Servl' h.. ClCbh.. Calch. CeslUl ChrC8h. Cobalt Copper Iron Lead Llthh.
llulber S8IIIpt ed (At) (At) (Ae) (8.) (8e) (Cd) (Ca) (Ce) (Cr) (Co) (Cu) (Fe) (Pb) (ll)
--- ....... ......... ......... ......... ......... ......... ....... ....... ....... ........ ....... ....... ....... ....... .......
0174 O5'MY'90 1.0 U
0174 '5-AUG-" 0.0673 0.0432 0.002 U 0.165 8 0.001 U 0.0023 8 87.4 0.08 8 0.0151 0.0037 8 0.003 U 0.0371 8 0.001 U 0.0064'
1787 Of.MR-91 0.104 S 0.03 U 0.002 U 0.137 8 0.002 U 0.0036 S 116 0.002 0.0201 0.01 U 0.02 8 0.0332 8 0.002 tAl 0.05 U
1787 19-AUG-91 1.24 * 0.045 811 0.002 U D.145 8 0.001 U 0.0024 8 109 0.032 U 0.051 0.0064 S 0.0082 8 1.68 0.002' 0.0064'
2387 19'AUG-91 2.55 * 0.0514 0.002 U 0.198 8 0.001 U 0.0024 8 113 0.032 U 0.0482 0.0048 8 0.0057 8 3.54 0.0045 0.006.J 8
Wett D.te IIqnHIUI M...antle . Mercury Molybdenu8 IIlcket pot...lua Setenh. SHyer Sodh. Stront h. Th.tt 1111 Tin Vanedlill Zinc
11lII8Ier S8IIIpt ed (1ft) (1ft) (HI) (No) (III) (K) (Se) (Ag) (II.) (Sr) (n) (Sn) (It) (Zn)
...... ....... ........ ......... ......... ......... ......... .......... ....... ....... ........ ....... ......... ....... ......... .......
0174 05-MY'90
0174 15-AUG-91 12.7 0.0122 . 0.0002 U . 0.0032 S 0.0062 8 o.m 8 0.002 B 0.0026 B 7.6 0.447 II 0.002 U 0.0279 0.0063 8 0.0441
1787 Of-MR-91 11.1 0.0064 8 0.0002 U 0.01 U 0.0246 S 1.6' 8 0.002 U 0.025 18 0.475 0.002 tAl 0.2 U 0.011 8 0.0188 .
1787 19-AUG-91 9.61 0.0995 0.0002 U 0.0087 8 0.0314 8 2.158 0.001 U 0.0045 8 13.5 0.407 II 0.002 U 0.0269 0.011' S 0.0294
2387 19'AUG'91 13 0.0554 0.0002 U 0.0068 . 0.0303 8 1.78 8 0.001' 0.0037 8 9.52 0.492 II 0.002 U 0.0251 0.0124 8 O.O~
'-Vatue t... than Contreet Required Detection i.1.lt (CllDl) but gre.ter than ...tr_t Detection LI.lt (l0l)
*-oupt'cata 8nltya" not within contro' ".It.
U8An8'Vled but not detected. ...present be'OM detectIon ".It
A8Acceptab'a with qu8'lf'cat'ona V-Va"d and .cceptab'.
. .
E-E.t,..ted Va'ue
-------
Pe.e 110.
Ground Weter Totel Metel a..ult.
903 Ped Ar.e
ae.ult. reported In 88,l
lieU Det. Ah.l... Antl~ Arsenic 8erlill 8eryUIi. Cedalill Celclill Ce.lue Chr08li11 Cobslt Copper Iron Leed L Ithlue
I1l8Ier ...led (AI) (AI) (A.) (8e) (8e) (Cd) (Ce) (C.) (Cr) (Co) (Cu) (Fe) (Pb) (LI)
. ...... ....... ........ ......... ......... ......... ........11 ....... a...... ....... ........ ....... ....... ....... ....... .......
0171 20-1IOV-9O 0.03 8 0.022 U 0.001 U 0.291 0.001 U 0.005 U n.1 0.5 U 0.004 U 0.004 U o.oon 8 0.115 0.0014 8 0.0426 8
0111 10-SEP-91 0.1 U .0.05 U 0.002 U 0.286 0.002 U 0.0051 18.2 0.5 U 0.005 U 0.01 U 0.01 U 0.915 0.0011 8 0.05 U
0211 to-SEP-91 18.4 0.05 U 0.002 U 0.215 0.0131 0.003 U 286 0.5 U 0.0311 0.01 U 0.0351 236 0.008 0.154
1187 18-SEP-9O 0.06 U 0.03 U 0.002 tAl 0.091 8 0.002 U 0.0046 8 111 0.002 IN 0.0215 0.01 U 0.0114 8 0.218 0.002 U 0.0651
1187 06-SEP-91 0.821 0.05 U 0.002 U 0.1 U 0.002 U 0.0013 120 0.5 U 0.081 0.01 U 0.01 U 1.35 0.0611 8
1287 09.I£P-91 0.836 0.05 U 0.002 U 0.1 U 0.002 U 0.0046 8 38.2 0.5 U 0.0182 0.01 U 0.01 U 1.44 0.0033 0.014 8
1487 05-SEP-91 0.354 0.05 U 0.0022 . 0.1 U 0.002 U 0.003 U 52 0.5 U 0.0099 8 0.01 U 0.0111 8 0.359 0.119
1587 18-SEP-9O 0.0894 8 0.03 U 0.002 U 0.115 8 0.002 U 0.002 U 123 0.002 IN 0.0169 0.01 U 0.01 U 0.0368 8 0.002 U 0.05 U
1687 18-SEP-9O 0.06 U 0.03 U 0.002 U 0.0743 . 0.002 U 0.002 U 33.1 0.002 U 0.01. U 0.01 U 0.01 U 0.01 U 0.002 IN 0.05 U
1681 05-IEP-91 1.01 0.05 U 0.0026 8 0.1 U 0.002 U 0.003 U 34.4 0.5 U 0.0216 0.01 U 0.0121 8 1.11 0.0026' 0.05 U
W.U Det. Megneslue Meng8M8. Mercury Nol ybdenUI IIlckel Pote..lue S.lenlill Silver Sodlue Strontlue Thelilue Tin Venedlue Zinc
I1l8ber S..led (fig) (Me) ("e) (No) (III) (K) (Se) (A.) (lie) (S,.) (Tl) (Sn) (V) Un)
...... ....... ........ ......... ......... ......... ......... ......... ....... ....... ........ ....... ......... ....... ......... .......
0111 20-NOV-9O 14.8 0.1 0.0002 U 0.009 U 0.009 U 1.1 8 0.002 U 0.003 U 16.9 0.429 0.0035' 0.03 U 0.0054 8 0.0091'
0171 10-SEP-91 15.1 0.0962 0.0002 U 0.01 U 0.01 U 2.0 U 0.001 U 0.005 U 18.7 0.516 0.001 U 0.1 U 0.01 U 0.0311
0211 10-SEP-91 82 1.24 0.0002 U 0.0107 8 0.051 6.41 0.003 . 0.005 U 290 2.16 0.001 U 0.1 U 0.0494' 0.142
1187 18-IEP-9O 31.4 0.0184 0.0002 U 0.0113 0.269 2.88 8 0.014 S 0.0129 47.2 0_952 0.002 U 0.05 U 0.01 U 0.005 U
1187 06-SEP-91 30.5 0.0657 0.0002 U 0.0134 8 0.0971 2.53 . 0.0039 0.005 U 45.7 0_1 U 0.001 U 8.99 0.0103' 0_0437
1287 09-5£P-91 '.32 0.0332 0.0002 U 0.01 U 0.0206' 2.0 U 0.0019' 0.005 U 148 0.279 0.001 U 0.1 U 0.01 U 0.0215
1487 05-IEP-91 19.1 0.0066 . 0.0002 U 0.01 U 0.01 U 2.93 . 0.0021' 0.0059' 13.6' 0.1 U 0.001 U 8.71 0.0133' 0.0206
1587 18-IEP-9O 10.8 0.0062 . 0.0002 U 0.01 U 0.02 U 0.97 . 0.002 tAl 0.0125 8.19 0.447 0.002 U 0.05 U 0.01 U 0.005 U
1687 18-IEP-9O 7.26 0.0108 . 0.0002 U 0.0196 0.02 U 2.94 . 0.002 tAl 0.01 U" 79.2 0.38 0.002 U 0.05 U 0.01 U 0.0141 .
1617 05-IEP-91 7.61 0.0341 0.0002 U 0.0109 . Q.0213' 2.79. 0.001 . 0.005 U 76.1 0.388 0.001 U 0.1 U 0.01 U 0.0309
8-Velue l... then Contract aequlred D.tectlon Lt.lt (CRDl) but IIr.et.r then Inst~t D.tectlon LI.lt (lDl)
*-oupllcete ensl...l. not within control 11.lt. .
U8Anelyzed but not detected J.pr..ent belOlf detection u.1t
A-Accept_le with quellflcltlone V-Vllid end acceptable
E-E.tl..ted Velue
-------
P8111 110. 2
Ground Water Totel Metel Results
East Trenches Aree
Reaults reported In ~/l
well Dete AII.I,.. Antl8ln)' Arsenic Berllft BerylllUl C_h. Calcllll C..IIII ChrC811ft Cobalt Copper Iron . Leed LI th h.
IllIIber S881p1 ed (AI) . (AI) (As) (Be) (Be) (Cd) (Ce) (Cs) (Cr) (Co) (Cu) (Fe) (Pb) (LI)
...... ....... ........ ......... ......... ......... ......... ......- ....... .....aG ........ ....... ....... ....... ....... .......
B218789 20-MlG-91 0.517 * 0.0356 0.002 U 0.125 B 0.001 U 0.0024 B 98.7 0.032 U 0.0174 0.D046. 0.003 U 0.437 0.001 U 0.0061 B
Well Dete Meanes 1111 lt8ngenue Mercury Mol ybdenuI IIlckel Potalallft 5elenllll 5 liver 50d I III 5trontllll Thelllill Tin V8n8d11ll Zinc
IllIIber 58111p1 ed (Me) (Nt) (H8) (Mo) (III) (Ie) (5e) (All) (lie) (Sr) eTl) (5n) (V) (Zn)
...... ....... ........ ......... ......... ......... .......ce zlII-=ac... ....... ....... ........ ....... ......... ....... ......... .......
B218789 2O-AUG-91 8.86 0.0102 B 0.0002 U 0.003 U 0.0038 B 1.17 B 0.001 U 0.0034 B 18.4 0.346 II 0.002 U 0.0215 0.0107 B 0.0091.
"
'-Velue I"s th8n Contract ...,Ired Detection LI.lt (CRDL) but ,reeter then lnatr--.t Detection LI.1t (lDL)
*-oupllcete enelysll not within control 11.lts
U8An8IYled but not detected ""r..ent below detection 1I.1t
A8Acceptlble with ClJII tflcetlona V-Velld end acceptlble
E-Estl..ted Velue
-------
Pale 110.
Ground Water Tot.l Metal leault.
Eist Trench.. Are.
Result. reported In I8/l
Welt Olte Al\8l... AntllllOl1)' Ar.enlc Ilrl\8 lerylt II... C8dn 110 CIlc:l\8 Ces hn Chromllo Cobilt Copper Iron Leed Llthh.-
IIlIItIer . SlIIpl ed (Al) (Al) (AI) (II) (8e) (Cd) (CI) . (Cs) (Cr) (Co) (Cu) (Fe) (Pb) UI)
...... ....... ........ ......... ......... ......... ......... ...a.== ....... ....... ........ ....... ....... ....... ....... ........
On4 ZZ'AUG.91 1.Z9. 0.028 . 0.002 UN 0.216 E 0.001 u 0.0019 8 113 0.032 U 0.0184 0.0045 8 0.0186 8 2.59. 0.0066 0.0074 .
2274 20'SEP'9O 0.06 U 0.03 U 0.002 IN 0.249 0.002 U 0.0035 8 105 0.002 IN 0.014 0.01 U 0.01 U 0.0275 I 0.0101 0.05 U
2274 09'SEp.91 5.39 0.05 U 0.0027 . 0.317 0.002 U 0.0051 105 0.5 U 0.0189 0.01 U 0.01 U 5.22 0.0097 0.05 U
2587 10.SEp.91 7.37 0.05 U 0.0051' 0.175 8 0.002 U 0.003 U 141 0.5 U 0.0267 0.01 U 0.0104 8 8.85 0.0078. 0.05 U
3187 10-SEP-91 0.981 0.05 U 0.0061' 0.1 U 0.002 U 0.003 U 23.8 0.5 U 0.0561 0.01 U 0.0158 8 1.19 0.0033 0.05 U
3287 19-5EP-9O 0.06 U 0.03 U 0.002 U 0.256 0.002 U 0.0025 8 115 0.002 IN 0.0143 0.01 U 0.0118' 0.011 8 0.002 U 0.05 U
3487 18-SEP-9O 0.06 U 0.03 U 0.002 U 0.0568 . 0.002 U 0.002 U 18.5 0.002 U 0.01 U 0.01 U 0.01 U 0.0148 8 0.002 U 0.05 U
3487 O5-UP-91 16.6 0_05 U 0.0032 . 0.191 8 0.0023 8 0.003 U 31.9 0.5 U 0.0381 0.01 U 0.0276 11.6 0.015 0.05 U
3687 08-MAR-91 0.0871. 0.03 U 0.002 IN 0.21 0.002 U 0.0031 8 135 0.002 0.018 0.01 U .0.0127 8 0.0131 8 0.002 IN 0.05 U
3687 23-AUG.91 1.79. 0.0276 8 0.002 UN 0.237 E 0.001 U 0.0042 8 127 0.032 U 0.0362 0.0054 8 0.019 8 2.84 . 0.0049 0.006Z .
3986 "'AUG-91 2.98. 0.0451 0.002 U 0.22 0.001 U 0.0025 I 96.2 0.06 8 0.0284 0.0069 8 0.0048 8 3.45 0.0032 0.0087 .
4086 06'SEP'" 0.514 0.05 U 0.002 U 0.1 U 0.002 U 0.0054 79.7 0.5 U 0.05n 0.01 U 0.01 U 0.71 0.002 8 0.05 U
4186 17'SEP-9O 0.06 U 0.03 U 0.002 U 0.22 0.002 U 0.002 8 119 0.002 IN 0.0162 0.01 U 0.014 8 0.0104 8 0.002 tAl 0.05 U
4286 08-MAI-91 0.099 8 0.03 U 0.002 IN 0.23 0.002 U 0.004 8 150 0.002 0.0219 0.01 U 0.0141 8 0.0165 8 0.002 UII 0.05 U
Welt Oltl Mlgnesl\8 M8nglne.. Mercury Mol ybdena Nlck.l Potlss ho Selenl\8 Silver Sodl\8 Strontl\8 Thllll\8 Tin VInlldI\8 ZInc:
IIlIItIer SlIIpled (Nt) (Mg) (HI) (No) (ill) (IC) (51) (Ag) (lIa) (5r) (II) (In) (V) (In)
...... ........ ......... .......... ......... ......... ......... ....... ....... ........ ....... a........ ....... ......... .......
on4 22-AUG-91 10.9 0.0667 0.0002 U 0.0042 8 0.0086' 1.31 8 0.002 8 0.0036. 21.8 0.342 0.002 U 0.0218 . 0.0113. 0.0398
2274 20'SEP-9O 20.7 0.0108 8 0.0002 U 0.01 U 0.02 U 3.24 8 0.002 IN 0.01 U* 30.7 0.941 0.002 U 0.05 U 0.01 U 0.0212
2274 09-UP'91 21.4 0.3]3 0.0002 U 0.01 U 0.0166' 4.198 0.0012' 0.005 U 35.7" 0.991 0.001 U 0.1 U 0.0202 8 0.049
2587 10-SEP-91 10.4 0.118 0.0002 U 0.01 U 0.0153' 2.41 8 0.001 U 0.005 U 10.8 0.35 0.001 U 0.1 U 0.0298 8 0.0574
3187 10'lIp.91 4.87. . 0.0236 0.0002 U 0.0123 8 0.0412 2.67 8 0.001 U 0.005 U 82.3 0.28 0.001 U 0.1 U 0.01 U 0.0864
3287 19'IIP'9O 15.1 0.0041 . 0.0002 U 0.01 U 0.02 U 1.74 8 0.002 IN 0.0113 24.7 0.537 0.002 U 0.05 U 0.01 U 0.0077 .
3487 18-SEP-90 5.65 0.0077 . 0.0002 0.01 U 0.02 U 2.9 . 0.002 IN 0.01 U 78.6 0.268 0.002 IN. 0.05 U 0.01 U 0.0054 ..
3487 05-IEP-91 9.85 0.111 0.0002 U 0.01 U 0.035 . 5.04 0.0015' 0.005 U 76.2 0.415 0.001 U 0.1 U 0.0505 0.135
3681 08'MM-91 10.9 0.0522 0.0002 U 0.01 U 0.0221.8 0.903 8 0.002 IN 0.0241 9.98 0.391 0.002 UII 0.2 U 0.01 U 0.0117 .
J687 a'AUG-91 9.88 0.0461 0.0002 U 0.0046 8 0.0247' 1.25' 0.002 U 0.0038' 9.41 0.326 0.002 U 0.0299 . 0.0138 8 0.0293
5986 16'AUG-91 12 0.07 0.0002 U 0.007 . 0.0184' 2.04 8 0.001' 0.0036' 17.3 0.489 II 0.002 U 0.0232 0.0151' 0.0374
4086 06'lIp.91 17.9 0.0209 0.0002 U 0.01 U 0.0438 3.59 . 0.01 U 0.005 U 103 0.819 0.001 U 0.1 U 0.01 U 0.0426
4186 17'IIP'9O 17.4 0.0056 . 0.0002 U 0.01 U 0.02 U 1.41 . 0.002 IN 0.0121 25.8 0.674 0.002 U 0.05 U 0.01 U 0.005 U
4286 08-MM-91 13.5 0.0066 . 0.0002 U 0.01 U 0.0318. 1.288 0.002 IN 0.0281 16.8 . 0.527 0.002 U 0.2 U 0.0128 8 0.0092.
.-Value 1..1 than Contract Required D.tectlon LI.lt (CRDL) but gr.ater then lnatru.ent D.tectlon LI.lt (IDL)
--oupllcate snalysll not Mlthln control ll.ltl
U-An8lVZed but not detected J-Pr..ent below detection ll.lt r-Edl_tad Val..
-------
Ground Water Inor81nlc R.sutts
903 Ped Are.
Re.utts reported In 88/t
Welt D.te Tot.t Ol.sotved Chtorlde Nltr.te/Nltrlte- Sut f.te 8lc.rbonate PH Tot.t suspended
Nl8ber 18IIIpted lot Ide, TOS Ct N02 S04 "OO3 Sot Ide, TIS
. ...... ....... ............... ................ ................ ................ ................ ................ .............a..
0171 -AUG-86 320 17 19.9 22
0171 09-Ml.87 311 21.1 7.30 24.0 203
0171 3D-APR.87 276 21.5 4.40 18.0 212
0171 01-l'AY-87 276 21.5 4.40 18.0 212
0171 21-1MY-87 319 18.9 6.4 19.0 211
0171 02'.lUL-87 329 16 6.4 18.0 217
0171 14-OCT.87 292 20.7 3.76 12.0 215
0171 26-'£1-88 297 19.4 2.60 16.5 123
0171 19'APR-88 313 17.4 3.94 1.83 211
0171 26-.lUL-88 289.1 19.0 J 5.22 J 18.8 226 .I
0171 31-1JCT - 88 312 18.5 5.91 18.7 204
0171 02.na.19 332 19.1 5.23 18.6 203
0171 02-MAY-89 291 18.1. 4.99 19.4 216
0171 08-AUG-89 350 19.1 5.79 19.9 216
0171 29'1IOV'89 no 20 5.5 24 230 7.6
0171 23.'£1.90 350 23 8.1 16 270 7.5
0171 20.NOV-9O 27 23 3.8 220
0171 17-APR'91 310 26 4.6 25 240 110
0171 10-SEP'91 316 4 U
0271 -AUG-86 1100 320 5.0 U 97
0271 11-MI-17 710 244 5.40 134 139 "
0271 09-APR-87 133 164 4.70 150 144
0271 21.*Y.87 86J 230 1.50 250 159
0271 02'JUL.87 956 269 5.6 165 158
0271 26-'£1.88. 1247 36J 1.93 278 81.0
0271 21-APlt-88 1475 436 5.03 328 159
0271 26-.IUL-88 1627.1 513 J 1.68 J 44.3 162 J
0271 08-AUQ.89 1876 501 1.63 418 97.1
0271 3D-NOV-89 1600 53D 1.8 330 110 6.8
0271 26-'£1'90 1300 210 0.10 260 120 5.9
0271 2t-1IOV-9O 2700 1100 1.0 250 140 130
0271 "-APR-9t 2000 93D 0.3 240 4 3100
0271 10-SEP'9t J600 1310
1187 18-SEP-87 611 88.5 2.25 '~ 289
1187 18"£8-88 556 92.4 1.60 ,,11.0 280
11.7 01'0£C.89 590 8Z 4.4 110 280 7.5
*Where no v.tue for Nltr.te/Nltrlt., v.tue h.. been Obt.lned fr08 su...tlon of nitrate and nitrite v.tuas
UwAnet ped but not detected .I....r..ent bet... detection t I.1t E-Estt_ted vatue
-------
GROUND-WATER SAMPLING RESULTS
-------
GrOWld Water lnorglnlc ResuUs .
. 903 P8d Area
Results reported In ../1
Well Date Totll Dissolved Chloride Nitrite/Nitrite- Sui flte .Iclrbonlte P" Totll Suspended
Nwe.r IIIIpI eel loll., TDS CI NOl sot. "C03 5011., T55
...... ...-.. ............... ................ ................ ................ ..........a..... ................ .........c....~.
1587 18.5£P-9O.507 58.55 8.1100 240.6 626
1587 27-1IOV.9O 500 62 4.2 19 230 660
1587 09-JU.91 430 65 28 210 1100
1587 15-APR-91 410 46 3.7 310 210 970
1587 03-SEP-91 310 10 2.5 13 220 1100
1687 10-Slp.87 256 4.14 0.46 124 119
1687 . 17-OC'-81 264 3.7 1.58 77 133
1687 01-lWt.88 287 7.46 0.35 93.8 83.1
1687 22-APR.88 277 4.04 0.05 84.8 166
1687 10-AUG-88 286 J 3.33 J 0.02 U 64.6 176 J
1681 31-OCT-88 276 4.12 1.46 73.0 161
1687 07-FEI-89 312 3.34 1.56 77.0 111 .
1681 02-MAY-89 300 3.14 2.02 61.5 177
1687 03-AUG.89 337 3.57 1.89 85.4 185
1687 06-IICJV.89 310 30 2.2 58 230 8.2 76
1687 17-MAR.9O 340 10 2.5 62 220 7.8
1687 28-NOV-9O 320 7.8 0:8 61 200 50
1687 09.JAII.91 320 5.2 1.3 60 210 130
1687 16-APR-91 310 2.8 0.6 70 210 4Z
1687 05-Slp.91 385 4.6 J 63.3 64.0
'.
~ere no velue for .Itrlte/.ltrlte, velue h.s been Obtelned fraa .~tlon of nitrate and nitrite values
1JaAn8lyzed but not detec:ted J-Pr..ent below detec:tton ".It Ea£stt_teel VIIUl
-------
Gr~ "Iter lnorgenlc Relultl
903 Ped Arll
Resultl reported In 1118/1
...U Olt. Totll Oll.olvld Chloride Nitrate/Nitrite. Sulfite Blclrb0n8te PH Tot. I Suspended
NUlber SlIIpled Solids, TDS CI 1102 S04 HCO] Sol Ids, TSS
...... ....... ............... ................ ..............~. ................ ................ ................ ...........aaa..
11117 ZhIAN-9O 570 90 1.3 93 350 7.'
1187 15-.1111-90 591 84.5 1.4 80.1 285 20
1187 18-SEP-9O 700 81.39 1. 9200 285.7 4
1187 28-1IQV-9O 560 89 ~.7 78 280 IoU
1187 15-JAII-91 570 79. 66 290 8
11117 "'APR-9' 540 116 2.3 115 290 9
1187 G6-SEP-91 673 5.0
1287 02-IEP-87 654 60.5 1.30 1011 368
1287. 26' FE8-88 617 38.8 0.71 46.2 212
1287 21-APR-88 641 57.0 1.33 102 354
1287 26-JUL.88 635 .I 53.3 J 1.6.1 203 348.1
1287 14-NOV-89 570 !J 2.2 110 410 7.9
1287 24-JAII-9O 540 37 2.2 92 400 8.0
12117 20'5£P-9O 520 4J 2.5 79 320 8
1287 28-IIOV-9O 600 42 2.2 98 330 33
1287 09-SEP-91 554 22.0
1487 01-S£P-87 661 27.0 1.10 27.0 530
1487 15'OCT-87 635 30.2 1.60 41 48
1487 01'MAI'88 265 28.0 1.59 43.1 36.3
1487 22-APR-88 275 24.8 1.70 48.8 75.4
09-AUG-88 287 .I 26.1 J 1.71 .I 41.9 112 .I '
1487
1487 26-OCT-88 288 30.9 1.77 43.8 122
1487 25-JAII-89 320 32.6 1.83 46.5 158
1487 25-APl-89 288 ]2.0 1.73 47.2 141
1487 O]-AuG-89 ]26 34.0 2.12 47.8 177
1487 Z8-1IQV'89 ]60 46 3.7 54 210 8.2 5 U
1487 25'JAI'9O 420 46 2.6 60 290 7.3
1487 18'IEP-9O 380 50 2.Z 50 240 18
1487 2O'NOV-9O 440 46 1.5 250
1487 . "-JAI-91 410 49 2.6 43 250 19
1487 15'API-91 410 49 Z.6 51 Z60 8
1487 05'IEP-91 440 16.0
1587 "-MAl-88 456 58.8 ].88 24.6 138
1587 Z1'API!-88 437 48.1 4.82 25.8 244
1587 O]-AUG-89 354 23.5 3.73 12.7 223
1587 Z4-JAII-9O 410 70 5.1 ]2 260 7.7
*Where no vII", for IIltrlt./lIltrlte, vllue h.. been obtllned fr- .~tlon of nitrate end nitrite vllun
UaAnllyz8d but not detected ""r..ent ..t... detection ".It E-Eltl..ted Vltue
-------
Ground Water Inorganic Resuits
Mound Are.
Resuits reported In ../i
Yeti Dltl Toui Oilloived Chtorlde NitrIte/Nitrite. 5uUlte Bicarbonate PH Totlt Suspended
Numer 'lIIIpi ed SOlids, TOS Ci N02 S04 HCOJ Solids, T5S
...-. ....... ............... ................ ................ ................ ................ ................ ................
2087 ONWHI8 373 11.1 0.05 261 ]1_0
2087 1J-OEC-89 500 8 100 228 9.9
2087 09-IE8'90 J.J
2087 19-MAl-91 2.7
2087 10-MAY-91 410 9.4 99 1 U 800
2087 15-AUG-91 340 7.7 160 1 U 180
2387 22-OCT'87 414 55.9 2.71 27.0 24J
2387 OJ'MAI-N 411 62.8 2.82 17-1 146
2387 28-API-N ]92 64.0 2.70 17.5 242
2J87 12-AUG-N 446 49.0 J 2.75 J 18.1 J 261 J
2387 I4-NOV-N 344 65.1 2.98 16.6 192
2387 07-IE8-89 459 65.8 2.31 18.4 237
2387 G4-MAY-89 421 62.6 2.44 18_6 259
2387 O8-AUG'89 519 59.] ].]5 18.1 239
2387 20'lu,90 440 7J 4.3 19 310 7.6
2387 O'-JUN-90 476 60.4 3.3 17.3 246 116
2387 09-IIOV-90 456 70 4.8 15 250 224
2387 O8-W-91 500 63 5.0 18 260 280
2387 19-AP.'91470 66 4.6 16 260 160
2387 19-AUG-91 490 6J 4.8 17 240 180
,
4386 11-MAl-87 J38 51.0 5.1 30.0 179
4386 OJ-JUN-87 386 30.8 7.5 30.0 170
4386 28'JUL.87 409 13.4 7.9 28.0 184
4386 20-AUG-" 400 48 4.9 22 180 26
*Where no v.tue for NitrIte/Nitrite, vliue h.. been Obtllned fro. sU8n8tlon of nitrIte end nitrite Vltues
u8AnItyzed but not detected J.pr..ent bltOll detection 1I.lt E-EsU_ted veh...
-------
GrCMnt Water Inorganic .esults
Mound Area
...utts reported In 1liii/I
Weu Date Totat Dillotved Chtorlde . I trete/. I trl te.. Sutfate Bicarbonate PN Totat Suspended
Nlllb8r S8IIIpted SOtlds, TDS ct N02 S04 NCD] Sot Ids, TSS
...... ....... -............. ................ ................ ................ ................ ................ ................
0114 -AUG-86 420 23 1,4.8 ]7 62
0174 11-11A1-87 405 30.5 9.80 ]0.0 218
0174 22-11A,.87 181 23.2 8.50 44.0 209
0174 23-JUL-87 465 20.5 5.9 ]0.0 220
0114 04-MII-88 421 21.7 7.22 27.5 129
0174 29-APR-88 419 20.8 6.60 29.] 208
0174 12-AUG-88 392 J 22.2 J 7.28 J ].29 J 251 J
0174 04-IIQV-88 ]85 19.5 7.12 ]0.4 208
0174 04-""-89 397 24.1 6.03 ]].9 212
0174 10-AUG-89 420 23.4 6.54 33.4 206
0174 17-1IQV-89 ]60 24 5.5 ]4 260 7.4
0174 09-'EI-9O 390 Z9 6.2 ]1 260 7.5
0174 05-""-90 350 2 212 12
0174 15-1IQV-9O 370 24 4.9 26 200 4
0174 10-""-91 340 33 4.7 26 200 4 U
0174 15-AUG-91 400 28 4.8 ]1 200 710
1787 06-1IQV-87 466 275 0.79 46.7 275
1787 04-""-88 439 42.5 0.97 26.9 166
1787 29-APR-88 418 41.2 1.50 28.0 269
1787 16-AUG-88 410 J 37.2 J 1.94 J 83.0 288 J
1787 04-IIQV-88 443 40.0 2.08 57.1 256 '
1787 07-'(1-89 4]7 34.1 2.]5 22.7 257
1787 04-...'-89 405 37.1 2.26 20.] 271
1787 1D-AUG-89 488 47.0 4.49 25.2 265
1787 01.1IQV-89 440 5] 4.6 29 340 7.5 520
1787 29-JAN'9O 490 57 4.3 20 ]50 7.4
1787 06-1IQV-9O 590 57 5.8 14 280 260
1787 09-MII-91 440 60.6 5.3200 0 ]6
1787 19-MJG-" 450 47 4.6 15 270 58
1887 O8-MII-88 163 5.85 0.02 U 28.9 41.4
1887 OZ-IIQV-89 340 23 . 6.2 . 59 ]60 8.6
1887 19-MII-91 0.9
1887 10-""-9' 260 19 2.1 ]1 130 610
1887 20-AUG-" . 260 20 1.4 34 150 520
1987 22-""-90 2.9
1987 15-AUG-91 4.0
-where no value for Nitrate/Nitrite, vatue haa been obtained fr08 au..atlon of nitrate and nitrite vatues
U-An81yaed but not detected J.p,...ent below detectfon U81t (-Eatl_ted vatue
-------
Ground Wat.r Inor88nlc .esults
£.st Trench.s Area
Results reported In -ell
WIll Data Total Dissolved CIIlorlde Nitrate/Nitrite- Sulf.te Bicarbonate PM Tot.l Suspended
Nl8Mr IlIIpl ed loll., TDI ct 1102 ~ MC03 Solidi, TS5
...-. ....... ..11............ ................ ................ ................ ................ ................ ................
0386 Z9-MAR-89 444 48.1 1.60 67.4 252
0386 22-JUII.89 475 48.1 1.78 84.6 277
0386 O2-AUG-89 520 51 80 420 7.5 210
0386 OS-OCT-89 1200 48 2.2 88 330 7.5 5 U
0386 t8-DEC-89 500 48 2.3 78 280 7.5
0386 23-MAR-9O 490 57 2.7 77 310 7.5
0386 08-JUII.9O 548 60.1 2.8 U 109 263 5 U
0386 06-5£P-9O 540 60 2.7 93 270 33
0386 15.1IOV-9O 550 53 2.6 100 210 9
0386 14-MAR-" 550 61 2.8 82 280 51
0386 20-JUII.91 560 58 3.5 140 280 20
0774 -AUG-86 440 38 42.0 77
0774 07.MAY-81 375 30.9 3.30 40.0 184
0774 28-MAY-87 360 31.0 3.70 61.0 176
0774 23-JUL-87 433 34.0 6.30 73.0 176
2274 -IEP-86 400 57 23.6 22
2274 13-MAR-87 425 58.0 9.10 32.0 198
2274 21.MAY-87 385 40.8 3.6 37.0 2n
2274 28-JUL-87 414 37.4 6.30 22.8 268
2274 01-DEC-89 390 53 6.8 30 260 7.3
2274 17-MAR-9O 420 78 5.2 23 310 " 7.8
2274 21-JUII-9O 428 54.7 5.6 22.6 266 5
2274 20-I£P-9O 409 56.52 6.5 285.7 210
2274 03-l1OV-9O 470 55 5.2 9 21Z 130
2274 23.MY-91. 430 57 5.0 22 Z90 4 U
2274 O9-I£P-91 520 243
2487 07-JUII.9O 300 7.0 0.02 U n.4 161 25
2S87 22-CICT - 87 448 36.0 7.69 35.5 250
2587 Q4-IW1-88 '" 37.3 7.69 32.5 152
2587 12-MAY-88 496 34.8 6.90 28.5 235
2587 16-AUG-88 457.1 34.6 J 7.69 .I 32.4 267 .I
2587 11-11OV-88 439 39.6 8.02 30.2 239
2587 15- 'EI-89 475 39.1 7.31 28.1 248
2587 O9-MAY-89 482 41.1 7.11 27.9 281
2587 t8-AUG-89 48Z 36.3 7.38 28.3 244
2587 02-1IOV-89 420 39 6.9 JO 320 7.4 no
-Wh.re no v.lue for Nltr.te/Nltrlte, value h.. ...., obt.lned frea ._tlon of nitrate and nitrite v.lues
U-An8lyzed but not detected J-Prnlnt bel. detection ".It E-E.tl..ted value
-------
Ground Water Inorganic .e.ult.
E..t Trenche. Are.
Result. reported In 18/1
Well Dlte Totll DI..olved Chloride Nitrite/Nitrite- Sulfite Ilclrbonate PH Totll Suspended
llulber -..led Solidi, TDS Cl 1102 S04 "CO] Solidi, TSS
....... ....... ............... ................ ................ ................ ................ ................ ................
0286 11-MY.17 1738 282 0.49 645 486
0286 Oh1UJI-87 169] 289 0.20 U 115 474
0286 21-JUL .87 1627 264 0.43 440 526
0286 31-MR.88 1425 290 0.02 U 385 ]57
0286 O]-.IUII-88 1537 149 0.10 335 393
0286 27-JUJI-89 1257 266 0.06 278 478
0286 11-JUl-89 1300 280 0.27 ]20 540 7.9 100
0286 O]-AUG-89 740 89 140 430 7.7 5U
0286 05-OCT-8f 0.26
0286 19-MR-9O 1300 350 0.06 290 360 7.8
0286 01-_-90 1080 245 0.1 U 247 380 6
0286 15-JIOV.9O. 0.6
0286 "-JUII.91 1to0 152 0.] 200 410 140
0286 11-SEP-91 0.5
0374 -AUG-86 420 40 30 18
0314 17-MR'87 441 56.0 9.60 30.0 273
0374 0]-JUII-87 490 52.] ].75 43.0 267
0374 23'.IUL-87 489 122 6.2 42.0 256
0314 03-MR-8B 478 48.7 7.35 19.8 156
0374 O5-MY-88 476 47.4 6.30 23.5 222
6.47 .I 20.1 .I 267 .I '
0374 ".AIJG.88 409 .I 4].2 .I
0374 . 08-FEI-9O 470 43 23 310 7.6
0374 25-MY-9O 454 49.6 10.1 26 2n 12
0]74 OHIUG-9O 420 49 5.5 28 270 J3
0374 16-JIOV-9O 500 48 5.0 21 260 29
0374 24-APl-" 5.7
0]74 22-AUG-" 460 44 4.7 ]5 260 9]
0386 -SIP-86 438 58 5.7 66.
03B6 12-MY-87 518 n.9 1.10 76.0 364
0386 08-.1111-87 523 n.1 1.12 100 257
0386 24-JUl-87 511 52.9 1.50 70.0 257
0386 14-0EC-87 457 48.6 1.26 10] 278
0386 31-MR-88 4B6 63.3 1.04 69.0 24.5
03B6 03'.1111-88 545 76.6 1.15 69.0 247
0386 06-OCT-8B 411 .I 50.4 1.24 .I 65.1 .I 248 .I
03B6 21-0EC-88 415 48.9 1.34 73.9 228
*Where no vllue for Nitrite/Nitrite, v.lue hi. been Obtelned fr08 IUl88tlon of nitrite end nitrite viluea
UeAnilyaed but not detected .I...r..ent 11810lIl detection tt.lt E8£.tl_ted v.lue
-------
Ground Water Inorganic Resulta
East Trenches Area
Results reported In 88/1
UeH Data Total Dissolved Chloride Nitrate/Nitrite- Sui fate 8 I carbonate ,PH Total Suspended
NUlbar IBllpI ed Sol Ids, TOS Cl N02 S04 HC03 Sol Ids, TSS
...-. ....... ............... ................ ................ .........82..... ................ ................ ................
3287 12-MY-U 630 32.4 10.1 113 240
3287 Z]-AlJG-88 480 J 36.7 J 4.70 J 59.6 J 289 J
3287 17-1IOV-88 453 39.6 3.77 77.6 273
3287 22-'E8-89 507 40.7 7.71 18.8 236
3287 12-0EC-89 550 48 6.6 77 310 7.6
3287 21-'EI-90 360 60 6.8 79 36D 7.7
3287 19-5EP-90 438 41.09 10.41 243.1 692
3287 29-1IOV - 90 460 46 7.6 65 250 3000
3287 15-JAJI-91 460 48 6.8 70 240 1600
3287 16-APa-91 440 46 7.1 71 250 600
3287 OJ-SEP-91 450 4J 7.6 98 230 1400
3487 10-MAR-88 288 5.37 0.17 114 61.4
3487 12-MY-U 314 3.94 0.06 97.0 125
3487 20-'E8-89 381 7.25 0.14 80.6 142
3487 24-AlJG-89 370 10.6 0.25 62.0 151
3487 13-0EC-89 510 5 0.34 76 190 8.3
3487 21-MAR-9O 400 5 0.30 62 190 8.4
3487 18-SEP-90 200 5.52 _1 U 190_5 1942
3487 28-1IOV-90 390 6.8 0.3 16 240 8400
3487 15-JAN-91 310 5.9 0.4 68 200 1700
8.0 0.06 71 180 '\
3487 16-APa-91 330 . 860
3487 OS-IEP-91 346 4.5 J 59.4 1140
3687 06-1IOV-87 375 218 4.57 43.5 218
3687 10-1IM-88 395 29.6 4.78 34.4 1]3
3687 05-MY-88 405 29_9 4.40 33.0 212
3687 19-AlJG-88 431 J 34.2 J 4.12 J 40.5 J 240 J
3687 10-1IOV-8I 390 41.7 4.42 42.4 208
3687 15- 'EI-89 444 41.9 8.06 27.7 242
3687 O9-MY-89 486 38.3 7.95 25.0 281
3687 22-AlJG-89 500 39.9 5.36 36.5 253
3687 10-1IOV-89 490 46 4.8 35 340 7.4 1200
3687 05-IIM-90 540 48 6.1 30 350 7.5
3687 05-M-90 590 5.5 284 2JO
3687 29-AlJG-90 480 43 4.5 31 250 580
3687 U-IIOV-90 490 21 5.7 27 260 350
3687 0I-MAR-91 455 50_6 5.15 0 U01
~.r. no value for Nitrate/Nitrite, value ha. been obtained fra8 sU888tlon of nitrate end nitrite values
U-Anil yzed but not detected J.present below detection 1I.lt E-Estl..ted value
-------
Ground Vater Inorganic Relultl
Ea.t Trench.. Arel
Result. reported In 118/1
llell Dlte Totll Diliolved Chloride Nltrete/Nltrlte- Sulfite Bicarbonate PH Totll Suspended
Nl.8er SlIIIPled Solidi. TOS Cl N02 S04 HC03 Solidi, TSS
...... ....... a.............. ................ ...........c.... ................ a............... ...sm..a.ae..... ................
2587 01-fEB-9Q 670 37 0.66 230 360 7.6
2587 11-"UN-9Q 600 29.8 9.2 36.4 232 730
2587 OS'IIOV-9Q 640 43 7.7 24 270 920
2587 09-MM-91 550 39 9.0 25 280 240
2587 22'API'91 500 34 7.5 32 280 820
2587 10-SEP'91 590 380
2787 2].AIJG-88 396" 30.5 " 9.92 " 57.9 " 221 "
2787 17'1IOV-88 407. 33.0 7.32 17.3 189
2787 11-MAY-89 439 34.6 8.42 61.5 215
2787 22.AIJG-89 457 35.2 7.40 60.5 204
2787 05-DEC-89 440 37 7.5 63 220 7.8
2787 12'1WI-9Q 520 41 6.5 65 260 7.8
2887 15'MAR.88 137 6.27 0.09 32.0 38.1
2887 12-MAY'88 516 23.4 0.04 130 93.6
2887 20.fEB-89 529 77.9 0.04 195 114
2887 06.DEC-89 700 17 0.05 U 290 140 7.5
2887 14-MAR'9O 3.8
2887 28.1IOV.9O 640 100 170 220 170
2887 16-APR-91 620 98 1.1 170 250 81
2887 O4-SEP-" 680 100 0.4 230 260 97
3187 29-OCT-87 346 10.3 0.20.U 125 60.8 '.
3187 10-MM'88 293 9.45 0.07 176 35.3
3187 12-MAY-II 312 9_01 0.17 115 67.6
3187 ZS-AlJG-88 308.. 9.07" 3.55 113 " 94.1 "
3187 . 22'1IOV-88 293 38_9 0.02 138 93.0
3187 22-fEl-89 307 9.79 0.05 118 74.6
3187 11-MAY-89 31Z 10.1 0.04 115 83.4
3187 14-DEC-89 S40 15 0.05 U 110 120 9.3
5187 13-1W1-9O 410 12 0.05 120 130 8.8
3187 18-IEP-9O S20 14 0.04 120 100 630
3187 21-1I0Il-90 520 14 0.04 120 110 380
3187 11-".-91 530 14 0.16 9S 110 290
3187 16.API-91 510 14 0.5 130 86 30
3187 10'SEP-91 337 51.0
3287 2NICT -87 62J 35.9 15.45 74 243
3287 10.MAR-88 564 32.5 14.4 103 140
*Where no V81ue for Nitrite/Nitrite. vllue h.. been obtllned frC18 ._tlon of nltrete end nitrite velUII
IPAnel yzed but not detected .Iapr..ent bile.. detection U.lt E-Eatl..ted velue
-------
Ground Water Inorganic Result.
Ea.t Trench.. Are.
Result. reported In 88/1
lieU Date Total DI8801ved Chloride Nltrate/Nltrlte* Sui fate Bicarbonate PH Total Suspended
Nue.r S..led Sol Ida, TDS Cl N02 S04 HCO] Solidi, TSS
...... ....... ............... ................ ....a........... .....a..aaa..... ...a............ a............... ................
4186 - 01-JUN-87 442 33.0 9.80 62.5 231
4186 21-JUL-87 427 34.0 10.9 66.1 233
4186 16.DEC-87 1806 947 0.02 U 58.0 99.6
4186 1H4AR-88 460 32.1 13.6 78.5 126
4186 05-MY-88 510 32.5 13.0 55.0 220
4186 22-NQV-88 474 10.9 6.69 70.1 261
4186 20-FEI-89 479 40.0 7.46 n.4 259
4186 11-MY-89 482 40.0 7.89 59.6 278
4186 07-DEC-89 740 52 2.0 52 588 7_5
4186 19-fEl-90 640 50 6.3 6Z UO 7.9
4186 17-SEP-90 471 44.83 8.08 255.6 149
4186 20-NOV-90 . 240 44 4.9 70 240 290
4186 10-JAN-91 460 46 7.8 57 240 190
4186 15.APR.91 7.3
4286 -SEP-86 470 50 30.2 22
4286 12.M.-87 526 57.0 7.20 70.0 171
4286 26-MY-87 468 34.7 5.9 24.0 297
4286 24- JUL -87 475 50.5. 4.10 20.0 279
4286 14-OCT-87 483 42.1 5.58 18_0 322
4286 04-W-88 465 37.0 4.76 26.6 183
4286 05.MY-88 401 35.6 4.30 16.5 209
4286 25-AUG-88 268 J 33.3 J 0.02 16.8 .. 170 J
4286 17-NOV-88 384 40.7 4.26 16.9 292
4286 20-fEI-89 525 53.9 4.69 18.3 297
4286 09-MY-89 476 49.5 4.39 18.4 321
4286 18-AUG-89 475 38.4 4.18 15.7 291
4286 06-DEC-89 570 55 5.2 21 450 7.4
4286 30-JAII-90 1000 66 7.0 24 440 7.2
4286 11-JUN-90 444 41.7 3.2 18 380 2780
4286 24-AUQ-90 480 43 4.2 18 360 1000
4286 16-NQV-90 520 55 4.1 17 380 2200
4286 08-W-91 520 63.5 5.95 0 144
4286 17-MY-91 610 70 6.0 18 370 . 830
6786 -NQV-86 512 35 65
6786 11-MY-87 560 43.8 4.90 70.0 358
6786 01-JUN-87 566 47.2 3.80 110 333
*Where no Vilu. for Nitrite/Nitrite, Vllue hi' been obtllned fr08 ._tlon of nitrate end nitrite VIlUII
U-An8t pad but not detected J"'r..ent batON detection I I. It E8£atl..ted value
-------
Ground "Iter lnoroenlc RHUU,
hat Jrench.. Are. .
Re.ult. reported In 18/1
Well Oat. Total DI..olved Chloride Nltrlte/Nltrlte* Sulfite Blclrbonllte PH Jotll SUspended
IIUltler SlIIIIPt eel Solidi, TOS c:t 1102 ~ "tO] SoUdI, TSS
...... ....... ............... ................ g............... ................ ................ ................ ................
3687 19-APR-9t 490 36 4;5 38 290 720
3687 a-AUG-" 500 40 4.5 31 270 200
3986 -SEP-86 450 36 5.0 U 74
3986 06-MAY-87 407 31.9 7.20 60.0 218
3986 OJ-JUN-81 J89 21.6 6.40 60.0 212
3986 24-JUL-81 396 31.9 4.80 51.5 209
3986 12-0EC-81 415 34.' 5.8' 65-3 242
3986 10-MAR-88 429 33.5 7.11 42.4 134
3986 OS-MAY-88 436 34.3 6.60 5J.0 223
3986 ".AUG-88 381 J 30.9 J 5.86 J 53.1 J 241 J
3986 10-NOV-88 412 40.1 5.17 64.6 219
3986 15-FEB-89 452 34.3 4.78 66.3 233
3986 Of-MAY-89 406 34.5 4.83 53.4 235
3986 16-AUG-8' 4n 34.5 5.04 54.8 245
3986 10-NOV-19 470 38 5.0 61 320 7.8 170
3986 21-'EI-9O 500 48 6.0 57 330 1.1
3986 04-JUII-9O 460 0.61 212 200
3986 Of-AUG-9O 410 0 5.1 51 210 440
3986 01-NOV-9O 430 45 5.1 61 250 190
3986 19-MAR-9t 400 41 4.6 55 240 100
3986 14'MAY-91 410 40 5.9 64 240 ' 180
3986 16-AUG-" 410 36 5.1 100 ZZO 140
4086 06-.Y-81 1011 19.9 1.40 410 205
4086 Oh1UN-81 14.9 390
4086 11-MAR-88 598 7.56 3.71 131 180
4086 12-.'-88 576 7.24 3.80 135 293
4086 11-.Y-89 594 7.15 1.33 142 369
4086 1J-DEC-89 600 7 0.16 130 390 1.3
4086 19-fEI-90 560 10 2.4 120 400 1.4
4086 2O-SEP-90 540 8.9 1_3 130 360 ZO
4086 28-JIOV-90 550 9_7 1.6 120 350 7
4086 11.JAII-91 2400 8.6 2_1 110 350 7
4086 16-APl-91 550 13 1.7 760' 340 I
4086 O6-SEP-91 6Z3 64.0
4186 -HP-86 480 34 5.0 U 100
4186 . 06.MA'.81 480 36.9 9.60 65.0 249
*Where no Vllu. for NItrite/NitrIte. Vllu. hi' been Obte.ned frG8 ~tlon of n'trlte and n'tr'te vllues
UaAnaI)'zed but not detected J.pre.ent belOM detection U.lt EaE.tl..ted Vllu.
-------
GROUND-WATER SAMPLING RESULTS
-------
......
Well Dete Totel Dleeolved
lI...r SMfIled . Solids, TOS
.......
...............
6716
6716
6716
6716
6716
8218789
1218789
8218789
8218789
1218789
8218789
2h'UL -87 564
08-FE8-9O 550
12-JUII-9O 539
n-MlG-9O 550
OS-OCT -90 540
14-!WI-9O 420
n'SEP-90 350
22-OCT-9O 360
08-!WI-91 750
21-1"Y-91 380
2O-MlG-91 390
*Where no velue for IIltrete,lIltrlte,
U8An81yud but not detected
A8Accept8ble with quallflcetlonl
Chloride Nltrlte/Nltrlte. sulfite 8lc.rbonate
ct N02 S04 HCO]
..........=..... ................ aEa............. ................
46.5 3.4 95.5 344
48 4.4 85 340
66.8 2.8 U 117 238
70 1.1 120 270
n 130 360
32 4.1 27 330
36 4.3 17 250
30 3.8 13 250
35 5.2 20 280
]] 4.3 11 260
38 4.2 12 280
Ground Wlter lnorglnlc Relutt.
E.st Trenche. Are.
R.lutte reported In 88/t
vetue h.. been obtelned fraa ._tlon of nltrete end nitrite ntue.
J-Pre.ent"below detection tl.lt E-E.tl..ted v.tue
v-v.t Id .-.eJected
PH
..m.............
7.5
7.5
,
Tote I Suspended
Sotlds, TSS
................
5 u
140
1400
390
4 U
680
62
-------
Ground Water Oiliolved R8dlochealltry Resultl
903 Pild Area
Resultl reported In pCl,l
Well Date Groll GrOll Uranlua Stronthll Plutonllft Aller I c hll hi tllII
lUllDer S8llpled Alpha leta Total. 90 239'240 241
...... ....... ........ ......... ..lIl:a.... ......... ......... ......... .......
0171 02-JUl-17 1 +,- 26 18 +,- 39. 6.8 2.6 -.04 +,- 1.50 515
0171 15'OCT'87 6 +,- 4 2 +,- 9 2.04 1.0 0.00 +,. .07 0.00 +,- .43 460
0171 26-FEI-88 5 +,- 4 12 +,- 11 2.36 0.00 +,- 0.18 0.00 +,- 0.18 200
0171 19-"'1-88 5 +,- 5 14 +,- 11 2.18 0.01 +,- 0.03 0.02 +,- 0.19 210
0171 26-JUL-88 12 +,- 2 6 +,- 2 4.67 0.00 +,- 0.08 0.10 +,- 0.17 210
0171 31-OCT-88 5 .,- 2 13 +,- 2 4.6 .02 +,- .11 -.05 +,- .08
0171 02-FEI-89 10 +,- 2 7 +,- 2 0.00 +,- 0.03 -0.01 +,- 0.08 240
0171 02-",,'-89 7.7 +,- 1.0 9.4 +,- 2.7 270
0171 08-AlJG-89. 1.1 +,- .7 .1 +,- 2.3
0171 29-IICJV-89 11 +,- 5 16 +,- 5 1.17 0 +,- .2 .006 +,- .004 .006 +,- .008
0171 20-NOV-9O 3.239 +,- 1.22 4.076 +,- 1.22 4.9644 -.152 +,- .28 34.27 +,. 204
0271 02-JUL-87 16 +,- 22 -19 +,- 36 11.8 1.0 515
0271 26-FEI-88 9 +,- 17 -12 .,- 59 7.53 0.00 +,- 0.17 0.00 +,- 0.33 200
0271 21-APR-88 20 +,- 8 25 +,- 17 19.58 0.00 +,- 0.03 0.00 +,- 0.18 210
0271 26-JUL-88 17 .,- 6 22 +,- 6 25.59 0.00 +,- 0.08 0.06 +,- 0.17 220
D271 08-AlJG-89 21.5 +,- 3.9 9.2 +,- 3.2
0271 26.FEI-9O -0.3 +,- 0.3
0271 2HIOV-9O 37.49 +,- 16.3 13.66 +,- 4.25 27.6966 .3718 +,- .331 135.2 +,- 209
1187 18-SEP-87 28 +,- 24 8 +,- 40 440
1187 18-FE8-88 15 +,- 5 -1 +1- 11 2.05 0.00 +,- 0.20 0.00 +,- 0.12 220
1187 01-DEC-89 9 +,- 5 11 +,- ] 0.5 -.1 +,- .2 .ooi +,- .004 .002 +,- .005
.1187 21-JU-9O 16.9 .,- 2.6 11.1 +,- 2.1 4.64 0.15 +,- 0.33 0.005 +,- 0.004 250 +,- 160
1187 28-.ov-9O 9.203 +,- 4.05 6.04] +,- 1.7 8.1765 125.1 +,- 215
1187 15-.IU-91 1.52 +,- 1.88 2.112 +,- 1.86 7.7069
1287 02-IEP-87 121 +,- 48 47 +,- 45
1287 26-FE8-88 47 .,- 12 46 +,- 16 35.70 0.00 +,- 0.09 220
1287 21-APR-88 52 +,- 14 57 +,- 20 ]2.97 0.00 +,- 0.04 0.01 +,- 0.20 210
1287 26-JUL-88 ]7 .,- 4 ZZ +,- ] . 27.80 0.00 +,- 0.08 0.05 +,- 0.17 210
1287 14-1IOV-89 30.0 .,- 1.2 25_1 +,- ].0 20.21 0.02 +,- 0.48 0.004 +,- 0.004 0 .,- 250
1287 24-JAII-9O 84.6 .,- 5.9 42.2 +,- ].6 20.68 150 +,- 150
1287 ZO-IEP-9O 11.8 .,- 4.04 11..96 .,- 2.]7 21.7164 .5652 +,~ .397 152.1 +,- 225
1287 . 28-1ICJV-9O 24.18 +,- 8.33 8_035 .,- 1.6 22.989 279.9 +,- 224
1487 01-SEP-87 17 .,- 21 23 +,- 41 500
1487 "-OCT-87 6 +,- '7 16 +,- 40 0.00 0.00 +,- .15 0.00 +,- .22 460
1487 01-MR-88 '0 +,- 7 '9 +,- 11 0.03 0.00 +,- 0.19 0.00 +,- 0.11 210
1487 22-"'1-88 8 +,- 4 18 +,. 11 0.34 0.00 +,- 0.01 0.00 +,- 0.16 200
-------
Ground Water ~Issolved Aedloch..lstry Aesults
903 Pad Area
Aesults reported tn pCt'l
"'U Date Gross Gross Uranh. Strontlw. Plutonl"" Mertclw. Trltlw.
Ik.8er -..led Alpha 'eta Totll. 90 239'240 241
...... ....... ........ ......... ......... ......... ....~.... ........8 .......
1487 O9-AUQ-88 1 +,- 1 7 .,- 2 . 1.41 0.00 .,- 0.04 0.03 .,- 0.09 210
1487 26-OCT-88 1.52 .01 .,- .06 .01 .,- .13 220
1487 26'JAN-89 1 .,- 1 5 .,- 2 1.85 -0.02 .,- 0.02 -0.01 .,- 0.03 230
1487 25'API.89 1.0.'- .6 3.6 .,- 2.5 260
1487 O3.AUQ-89 3.1 .,- .9 3.7 +,- 2.3
1487 28-NOV-89 7 .,- 4 9 .,- 2 0.23 0.'- .16 0 .,- .003 -.01 .,- .03
1487 25-JAN-9O 9.5 .,- 1.8 9.1 +,- 2.2 3.64 0.36 +,- 0.49 0.011 +,- 0.007 0.011 .,- 0.010 200 .,- 160
1481 18-SEP'9O 5.456 +,- 3.9 4.651 +,- 1.4 2.001 .3521 +,. .39 171.2 +,. 223
1487 20-1IOV-9O 2.93 +,. 1.13 2.461 .,- 1.06 2.1786 .4541 +,- .386 22.23 +,- 20]
1487 11-JAN-" 4.618 +,- 2.71 2.567 .,- 1.]5 ].914 .204 .,- .]]1 -50.9 .,- 211
1587 01-tWt-88 14 .,- 7 -5 .,- 17 1.44 0.00 .,- 0.19 0.00 .,- 0.10 210
1581 21'APA'88 '2 +,- 5 -8 +,- 14 1.25 0.00 .,- 0.05 0.00 +,- 0.16 210
1581 03.AUQ'89 .1 +,- .6 3.2 +,. 2.3
1587 O4-DEC-89 3 +,- ] 5 +,- ] 1.41 .1 +,- .2 .007 .,- .004 _001 +,. .008
1587 24-JAN-9O 1.0 .,- 0.5 1.7.'- 1.9 1.44
1587 27-1IOV-9O .4501 .,. .1114 2.473 .,. 1.42 1.5254 .04861 .,- .232 349.4 +,- 212
1581 09'JAN-91 2.382 +,- 2.63 6.918 +,- 3.55 2.0259 .
1687 14'SEP.87 14 .,. 24 23 .,- 40 500
1687 17-OCT'87 48 .,- 27 17 .,- 39 3.91 .05 .,- .09 .01 .,- .07 460
1681 01-lWt-88 10 +,. 4 12 .,- 18 4.14 O.O~ .,- 0.14. 0.03.'- 0.12 220
1687 22-APII-88 12 +,. 4 16 +,. 10 3.74 0.02 +,- 0.04 0.02 +,. 0.16 210
.1681 10-AUQ-88 2 +,- 1 0 +,- 2 0.00 .,- 0.04 0.02 +,- 0.09 210
1687 51-OCT-88 3 +,- 1 8 +,- 2 3.55 0.0 .,- .03 -.06 .,- .08 220
1681 08-FEI-89 2 +,- 1 6 .,- 2 2.73 -0.08 +,- 0.09 0.03 .,. 0.08 no
1681 O2-MY-89 4.4 +,- 1.0 8.3 +,- 2.6 270
1681 O3-AUQ-89 4.4 .,- 1.2 4.6 +,- 2.5
1687 06-IIOV-89 6 .,- Z 3.8 +,- .9 5.1 0 .,- .2 - .001 +,- .005 -.00] .,- .004
1687 11-MA-90 6.555 +,- 2.6656 4.039 +,- 1.192856 5.4905 -.022n +,- .1415684 .003601 +,- .0042454 .001546 .,- .0090924
1681 28-1IOV-90 3.888 +,- 1.1S 3.238 .,- 1.11 2.9886 -185 +,- 200
1681 O9-JAII-" 9.898 .,- 4.5 4_744 +,- 1.34 2.5948 -14.8 .,- 198
The table fOnl8t Is: result +,- counttng error
-------
GrCMnl ".ter DI..olved R8dloc:h_l.tty Rnult.
Mcud Are.
Re.ult. reported In pCl,l
Yell D.te Gro.. GroS8 Urenhll StrontlUl PlutonlUl AllIer! c I UI TrltlUl!
IIl8er SIIIIIpI ed Alph. Bet. Totel. 90 239/240 241
...... ....... ........ .....a... ......... ac....... ......... .........
0174 Z3-JUL-87 9 +,- Z3 8 +,- 39 2 5.0 0.0 +,- 0.7 .16 +/- .58 475
0174 2z.cX:T . 87 8 +,- 4 -3 +,- 9 1.97 1.0 .01 +,- .09 0.00 +,- .58 460
0174 CK-MAJl-88 5 +,- 4 0 +,- 10 2.52 0.09 +,- 0.11 0.05 +,- 0.42 210
0174 Z9-APR-88 6 .,- 3 2 .,- 9 2.25 0.00 .,- 0.4 0.00 .,- 0.10 220 .,- 90
0174 12-AUG-88 4 +,- 1 3 +,- 2 2.79 0.00 +,- O.CK 0.01 .,- 0.09 220 +,- 90
0174 CK-IIOV-88 5 +,- 2 4 +,- 2 2.77 - .02 +,- .03 -~05 +,- .08 230 +,- 100
0174 CK.MAY-89 4.1 +,- 1.2 7.5 +,- 2.7 270
0174 10-AUG-89 7.3 +,- 1.6 5.5 .,- 2.4 2.13 .027 .,- .016
0174 17'1!OV-89 6 .,- 5 11 .,- 3 4.06 - .01 .,- .10 0.001 .,- 0.006 -0.002 +,- O.OCK
0174 O9-fEB-90 2.5 +,- 0.8 5.1 +,- 2.3 1.52 0.53 +,- 0.36 0.006 +,- 0.005 100 +,- 100
0174 15-JIOV-90 3.88 +,- 2.29 2.758 +,- 1_07 1.8338 .4468 +,. .306 329.4 +,- 203
1787 06-1ICJV-87 9 +,- 20 18 +,- 41
1787 CK-MAR'88 10 .,- 5 11 +,- 9 5.45 0.00 +/- 0.12 0.0 .,- 1.6 200
1787 Z9-APR-88 18 +/. 4 12 +,- 11 1.33 200
1787 16-AUG-88 3 +,- 1 6 +,- 2 2.07 0.00 +,- O.CK 0.01 +,- 0.07 210
1787 CK'I!OV-88 4 +,- 2 7 +,- 2 3.CK . .02 +,- .03 -.08 +,- .08 220
1787 OI-nl-89 4 .,- 2 6 .,- 2 1.73 -0.1 +,- 0.03 -O.CK +,- 0.08 260
1787 O4-MAY-89 2.3 +,- 1.1 9.2 +,- 2.9 270
1787 10-AUG-89 2.1 +,- .8 2.8 +,- 2.5 2.28 .007 +,- .004 .016 +,- .018
1787 Z9-JAII-90 4.1 +,- 2.0 3.4 +,- 2.1 0.64 0.16 +,- 0.37 0.Ot2 +,- 0.006 0.005 +,- 0.006
.1787 06-JIOV-90 1.41 .,- 1.67 4.374 +,- 1.95 1.4407 .472 .,- .348 35.25 .,- 198
. 1787 O9-MAR-" 2.486 .,- 1.9 3.975 +,- 1.48 1.491 .4973 .,- .355 110.6 +,- 200
1887 O8-MAR-88 7 +,- 9 24 +,- 15 0.32 0.02 +,- 0.09 0.00 +,- 0.24 220
1887 02-1IOV-89 10.2 +,- 2.0 6.8 +,- 3.5 6.56 0.009 +,- O.OCK
1887 19-MAIt-91 1.865 +,- 194
2087 04-MAR-88 8 +,- 12 37 +,- 22 0.00 +,- 0.18 0.00 +,- 0.24 200
2087 13-DEC-89 1.03
2087 O9-'EI-90 0.1 +,- 0.9 3.6 +,- 1.8
2087 27-JUL-90 .1189 +,- .387 3.58 +,- 1.18 0.3CK5
2087 19-MAR-91 8.393 +,- 195
2387 22-OCT-87 39 +,- 27 . 30 +,- 45 520
2387 03'MAR-88 6 +,- 4 11 +,- 12 3.74 0.00 +,- 0.19 0.00 .,- 0.17 210
2387 28-APR-88 14 +,- 5 5 +,- 11 3.73 0.00 +,- 0.03 0.00 +,- 0.10 200
2387 12-AUG-88 5 +,- 1 5 +,- 2 3.18 0.07 +,- 0.05 0.00 +,- 0.08 210
2387 CK -1IOV-88 4 +,- 2 4 +,- 2 3.3 - .01 +,- 0.3 -.CK +,- .08 230
2387 08-'£1-89 6 .,- 2 4 +,- 2 3.39 0.00 .,- 0.03 -0.07 .,- 0.08 250
-------
Ground Water Dissolved R8dloch..l.try Result.
Mound Are.
Result. reported In pCl/1
"'U Date Gro88 Groll Uranh. Stronth.. Ptutonh.. Merlellil Trlth.
IIl.IIIber S8IIIpt eel A'pha Beta Totat* 90 239/240 . 241
...... ....... ........ ......... ........11 ......... ......... ......... .......
2387 04'MAY.89 4.5 +/- .7 5.9 +/. 2.7 260
2387 Q8-AlJG.89 2.5 +/- .3 -1.3 +/- 2.2 2.99 .025 +/- .011 .003 +/- .007
2387 O4-DEC-89 7 +/- 4 10 +/- 4 0.25 -.1 +/- .2 0 +/. .002 0 +/- .004
2387 20.fEI-90 3 +/- 3 4 +/- 1 3.6 0.1 +/- 0.3 0.000 +/- 0.001 .0.001 +/. 0.003
2387 09-IIOV-90 7.902 +/- 3.17 3.084 +,- 1.57 3.0884 .1273 +,- .294 297.8 +/- 211
2387 Q8-1W1-91. 5.182 +,- 3.25 1.516 +,- 1.11 2.6641 .2057 +,- .3 92.85 +,- 200
4386 29-oIUL-87 5 +,- 25 -14 +/- 42 1.2 1.2 - .20 +,- .85 .11 +,- .32 493
,
The table fOnl8t I.: re.utt +,. counting error
-------
Ground V.t.r DI.lolved a8dlochealltry aelultl
£llt Trenches Arel
a.lultl reported In pCl,l
Uell Dlte Groll GrOll Ur.nlua Strontlua Pluton I III A8rlclua Trltlua
NUIIb8r SIIIIpI ed Alphl I.ta Total- 90 239'240 241
...... ....... ........ ......... ......... ......... ......... ......... .......
2274 03-1101/-90 4.477 .,- 2.23 3.295 .'.1.42 5.5102 _003924.'- .197 186.8 .,- 206
2587 22.OCT-87 4 .,- 16 -12 .,- 37 520
2587 O4-MAl.1I 7 .,- 5 -2 .,- 11 1.76 0.00 .,- 0.19 0.00 .,- 0.46 210
2587 12-MAY.II 19 .,- 7 8 .,- 14 '..44 0.01 ./- 0.04 0.00 ./- 0.09 200
2587 16-MJG-II 3 .,- 1 3 .,- 1 1.31 0.01 .,- 0.04 0.07 .,- 0.08 210
2587 11-NOII-II 2 .,- 1 2 .,- 2 220
2587 16-F£I-89 2 .,. 3 1 .,- 2 1.89 0.01 .,- 0.03 -0.08 ./- 0.08 260
2587 O9-MAY-89 1.8.'- 1.1 7.4 .,- 2.5 260
2587 18-MJG-89. 1.7 .,- .8 1.5 .,- 2.3 1.67 .006 .,- .005 .014 .,- .020
2587 01-F£8-90 5.1 .,- 1.1 3.0 .,- 1.8 3.14 0.17 .,. 0.28 0.010 .,- 0.005 0.009 .,- 0.006 220 .,- 140
2587 05-810\/-90 8.702 .,- 2.96 4.613 .,- 1.77 2.1187 .5317 .,- .375 177.2 .,- 206
2587 09.MAI-91 2.023 .,. 1.71 1.809 .,- 1.18 1.661 .3368 .,- .322 -33.7 .,- 193
2787 23-MJG.II 6 .,- 2 8 .,. 2 4.92 0.00 .,. 0.04 0.00 .,- 0.08 200
2787 17.NOI/-II 7 ./- 2 8 .,- 2 240
2787 11-MA'-89 5.3 ./- 1.4 14.3 .,- 3.0 270
2787 22-MJG-89 5.4 .,- .7 8.2 .,- 2.8 4.9 .007 .,- .004
2787 05-D£C-89 9 ./. 3 4.6 .,. 1.5 0.45 .04 .,- .18 .010 .,. .004 .001 .,- .004
2787 12.MAI-90 11.4 .,- 2.7 7.3 .,- 2.3 0.33 .,- 0.36 0.005 .,- 0.004 100 ./- 150
2117 15-MAl-1I 6 .,- 5 14 .,- 12 0.99 0.00 .,- 0.23 0.00 .,- 0.29 210
2117 12.MA'.1I 4 .,- 4 -10 .,. 15 5.27 0.00 .,- 0.03 0.01 .,- 0.07 220
2117 21-FEI-89 7 .,- 2 6 .,- 2 6.97 -0.02 .,. 0.03 0.05 ./- 0.05 260
2887 06.D£C.89 14.8 .,- 4.2 9.5 .,- 5.4 7.61
2117 28-iIOv.9O 11.96 .,. 5.79 3.573 .,- 1.22 9.642
2117 15-"".91 6.919 .,- 2.87 2.505 .,- 1.1 10.0789
3187 29-OCT-87 36 .,- 34 Z6 .,- 4] 460
3187 10.MAI-II 14 .,- 8 15 .,- 16 . 0.00 .,- 0.11 0.00 .,- 0.17 220
3187 12.MAY-II 12 .,- 6 2 .,. 14 0.35 0.00 .,- 0.04 0.03 .,- 0.09 200
3187 ZS-MJG-II 1 .,- 1 4 .,- 1 1.2 0.00 .,- 0.04 0.08 .,- 0.08 200
3187 22.10\/-11 1 .,- 1 " .,- 2 240
3187 23.F£8-89 2 .,. 1 4 .,- 2 1.53 0.00 .,- 0.03 -0.04 .,- 0.08 Z60
3187 11.MAY-89 1.9 .,- 1.0 5~4 .,- 2.6 270
3187 14-D£C-89 3.6 .,- 1.8 1.7 .,- 0.8 1.87 0 .,- .5 .005 .,- .004 .002 .,- .007
3187 18-I£P-9O 44.73 .,- 11.2 9.567 .,- 1.85 3.8556 .317 .,- .365 .35.2 .,. 213
3187 21.10\/-90 1.233 .,- .837 . 2.639 .,- 1.07 1.2344 .5851 .,- .431 -109 .,- 197
3187 11."AI-" .85n .,. .997 2.07 .,- .999 1.1908 - .0149 .,. .296 -106 .,- 208
3287 27.OCT-87 78 .,- 50 61 .,- 48 460
-------
Ground Water Dissolved Redlochealstrv Resultl
Ellt Trenches Arel
Resultl reported In pCl,l
Welt Dete GrOll Gross Ural'll UII Strontha PlutonllR AMrlcllR Trltl\ll
IllIdIer S...-ted Alphe leta Total- 90 239'240 241
...... ....... ........ ......11118 ......... ........8 ........11 ..11...118= .......
0286 21-JUL-81 12 .,- 26 19 +,. 55 13.90 2.4 -0.1 +,- 1.0 415
0286 3HtAR-1I 30 .,- 7 11 .,- 11 14.41 0.00 +,- 0.15 0.00 +,- 0.34 200
0286 03-01l1li-11 2' .,- 5 15 .,- 9 11.43 0.00 .,. 0.04 0.02.'. 0.10 2'0
0286 21-,11111-89 33.3 +,- 4.0 24.3 +,- 3.1
0286 ]0.01l1li-89 2t .,- 9 io +,- 5 20.10 -0.3 +,- 0.6 0.00 +,. 0.02 0.00 +,- 0.03
0286 03-AUG-89 ]I .,. 11 12 .,. 6
0286 "-MR-9O '6.8 .,- 7.43232 10.01 .,- 3.60248 9.4215 .01889 .,- .445104 0.0 .,~ .0062681 .002105 .,- .0159014
0286 15-1KJV-9O 334.2 +,- 217
0314 2J-JUL-11 6 .,- 22 25 .,- 41 Z.Z 1.0 .10 +,- .69 -.04 .,- .28 415
0374 23-CICT .81 250 .,- 52 321 +,- 20 2.32 1.0 0.00 +,- .10 0.00 +,- .08 520
0374 OJ-MR-II 10 +,- 7 9 .,- 15 2.41 0.00 +,- 0.16 ' 0.00 +,. 0.25 210
0374 OS-MAY-88 7 +,- 3 6 +,- 10 2.16 0.01 .,- 0.04 0.00 .,- 0.10 220
0374 19-AUG-88 5 +,- 1 4 .,- 1 2.39 0.03 +,- 0.04 0.03 +,- 0.08 230 +,- 90
0374 08-fEB-9Q 1.2 .,- 1.3 3.1 .,. 1.9 2.13
0374 01-AUG-9O 18.46 .,- 1.08 5.176 +,. 2 2.4162 .1n8 .,- .165 353.3 +,- 210
0374 16-NOV-9O 3.44 .,- 1.37 2.408 .,- 1.09, 2.6161 .4589 .,- .357 181.8 .,- 221
0374 24-API-91 332.5 +,- 198
0386 24-JUL-a7 27 .,- 25 11 .,- 43 1.1 2.1 - .32 +,- .68 .00 +,- .40 502
0386 15-DEC-a7 42 .,- 13 40 +,- 12 4.67 1.0 0.00 +,. .14 220
0386 31-MR-1I 17 .,- 5 10 .,- 11 7.59 O.0l!. .,- 0.15 0.00 +,- O.U 200
0386 03-JUII.88 24 .,- 6 18 +,- I 7.12 0.00 .,- 0.04 0.00 .,- 0.10 240 .,- 100
, 0386 06-OCT-1I 14 .,- 2 9 .,- 2 6.21 0.00 +,- 0.04 0.02 +,- 0.10 260 .,- 90'
0386 21-DEC-1I 6 .,- 2 10 .,- 2 7.17 -0.3 .,- .03 0.0 .,- .08
0386 29-MR-89 11 .,. 2 9 .,- 2 .
0386 29-.1l1li-89 18 .,- 6 13 .,- 3 8.4 1.3 .,- 0.5 0.01 .,~ 0.01 0.02 .,- 0.02 330 .,- 230
0386 12-JUL-89 22 .,- 12 13 .,. 4 8.6 0.1 .,- 0.5 0.00 .,- 0.01 0.00 .,- 0.01 110 +,- 150
0386 OZ-AUG-89 11 .,- 10 14 +,- 4
0386 OS.OCT-89 7.0 .,- 1.0 10.6 .,- 2.3 0.46 0.68 .,. 0.47 0.005 .,. 0.006 0.026 +,- 0.018 190 +,- 270
0386 tI-DEC-89 .6 .,- .7 4.2 .,- .8 0.1 -.1 .,- .3 .002 .,- .003 .003 +,- .008
0386 15-1IOV-9Q 16.15 .,- 6.41 12.9 .,- 2.96 8.9351 .2JZ8 .,- ,.241 292.8 +,- 201
0386 14-MR-91 4.849 .,- 2.02 5.831 .,- 1.n 9.2246 .U71 +,- .339 -71.9 .,- 201
0714 2J.JUL-87 -4 +,. 20 34 +,- 46 1.6 1.0 0.0 +,- 0.6 .13 .,- .35 415
0714 OS-IIO\f-81 1 +,- 6 -4 +,- 9 2.08 1.0 0.00 +,- .20 .01. +,- .07 460
2274 2a-JUL-a7 -6 +,- 19 22 .,- 45 5.4 1.0 - .23 .,- .93 1.4 +,- 5.2 478
2274 21-OCT -87 10 .,- 4 13 +,- 9 3.1 1.0 0.00 +,- .12 0.00 .,- .44 520
2274 01-DEC-89 5 +,- 3 5 +,- 3 0.44 0 .,- .12 0 .,- .002 -.002 .,- .006
-------
Ground Water DI.solved Redloch..l.trv Results
E.st Trenche. Are.
Resulta reported In pCl,l
Well D.te Gross Gross Urenha StrontlWl PlutonlWl A8erlclWl TrltlWl
llulber S8IIpl ed Alph. 8et. Tot.l* 90 239'240 241
...... ....... ........ .....8... ......... ....8...8 ......... ......... .......
3986 O9'MAY.89 2.1 .,. .8 4.3 +,- 2.6 260
3986 16'AUG.89 1.8 .,. .7 2.2 .,- 2.3 10.29 .003 ./- .005 .015 +,- .017
3986 21-fEB-9O 3 +,. 3 2.2 +,- 1.2 4.02 0 +,. .3 .001 +/- .004 . .003 ./- .008
3986 OHIOV-9O 5.409 .,- 2.2 2.713 +/- 1.44 4.0747 232.9 .,- 203
3986 19'MAII-91 5.151 .,. 3.13 2.267 +/. 1 6.3917 21.45 +,- 195
4086 27'OCT-87 106 .,. 18 207 +,- 15 6.89 1.0 0.00 +/- .14 0.00 +,- 1.6 . 460
4086 11.MAII.II 46 .,. 16 23 +/- 16 6.55 0.00 +/- 0.11 0.00 .,. 0.53 220
4086 12-MAY'1I 17 .,. 6 2 +/- 14 4.92 0.00 +/. 0.03 0.00 +/. 0.09 210
4086 11-MAY'89 . 6.3 +,- 1.4 5.4 +/- 2.7 270
4086 13'OEC.89 26.7 ./. 4.3 35.2 +/. 3.8 3.45 0.77 +/- 0.52 0.011 +/. 0.006 0.010 +/- 0.009 -10 +/- 90
4086 19-FEI'9O 2 +,. Z 4.8 +,. 1.3 3.61 .3 .,. .4
4086 20-SEP-9O 3.893 +,- 3.05 7.363 +/. 2.19 Z .67'5
4086 28-1IOV-9O 3.818 +/- 3.15 3.744 +/- 1.22 2.955 -72.2 +/- 206
4086 1h1AN'91 2.358 +,. 1.41 5.058 .,- 1.99 3.0584 18.24 +/- 204
4186 21'JUl-87 0 +,. 2' 85 +,- 48 2 1.2 '.04 +/- .66 .27 +,- .57 475
4186 2J'OCT-87 11 +/- 7 21 +/- 10 3.13 1.0 0.00 ./. .11 0.00 +/- .15 520
4186 11'MAII-II 19 +/- 8 31 +/- 15 3.48 0.00 +,. 0.11 0.00 +,- 0.26 220
4186 05'MAY'1I 9 +,- 4 16 +,- 10 3.76 0.00 +/- 0.03 200
4186 22'I!OV.II 4 +,. 2 6 +/- 2 240
4186 21-FE8'89 5 +,- Z 5 +,- 2 3.96 0.00, +,. 0.03 0.03 .,- 0.10 260
4186 11-MAY-89 3.2 .,- 1.6 7.8 .,- 2.6 .270
.4186 07-DEC-89 4.2 +,- 1.6 2.9 +,- 1.9 0.67 0.96 ./- 0.72 10 +,- 270'
4186 19-FEI-9O 2 .,- 3 .4 .,. 1.3 1.7 0 ./- .2 .001 .,- .004 0 .,- .007
4186 20-IlO\l-90 2.009 .,- 1.04 3.138 .,. 1.29 2.8832 .09401 .,- .293 '20.4 .,- 201
4186 10-JAII-" 2.157.'- 1.73 2.~2 .,. 1.23 2.8058 37.~ .,. 205
4286 24-.1111.-87 215 +,. 157 144 .,- 6Z 2.8 1.0 .36 .,- .74 0.0 .,- 2.8 502
4286 15'OCT-87 12 .,- S 7 .,- 9 1.98 1.3 0.00 .,. .08 0.00 +,- .06 560 +,- 290
4286 O4'IWI.II 5 .,. 5 -5 .,. 9 2.05 0.18 +,- 0.13 0.00 .,- 1.2 200
4286 OS-MAY-II 7 .,. 3 10 +,- 11 1.95 0.00 .,- 0.03 220
4286 25'AUG-II 4 .,- 1 4 .,- 1 1.82 0.00 .,- 0.04 0.01 .,- 0.08 200
4286 17-IlO\l-11 4 .,- 2 4 +,- 2 230
4286 21'fEI-89 1 .,- 1 2 .,. 2 2.45 0.01 .,- 0.03 -0.02 +,- 0.13 260
4286 O9'MAY.89 3.0 .,- 1.4 3.9 +,- 2.6 260
4286 18-AUG-89 .9 +,- 1.2 .4.0 .,- 2.4 1.77 .010 +,- .005
4286 30' .)"11-90 42.2 +,. 14.7 32.1 +,- 15.1 1.53 0.05 +,- 0.41 0.006 +,- 0.004 0.007 +,- 0.006
4286 16'!IOV-9O 1.242 .,- .891 1.216 +,- .901 2.5901 .6548." .42 -113 +,- 213
-------
Ground ".t.r Ol8l0ived Redlochmlltry I.suit.
E.lt Trench.. Are.
leluitl reported In pel,i
weu O.t. Grosl Grosl Uranlua Strontlua Piutonlua A8erlclua Trltlua
lI~r SlIIpi ed Aiph. Bet. Totei* 90 239'240 241
...... ....... ........ ......... ........111 .....:.... ......... ..a...... .......
3287 10'MAR'Y 15 +,- 9 7 +,- 19 2.83 0.00 +,- 0.13 200
3287 12-MAY-Y 19 +,- 6 4 +,- 14 4.11 0.00 .,- 0.04 0.10 .,. 0.09 200
3287 23-AUG-II 4 .,- 1 5 +,- 1 3.26 0.00 .,- 0.04 0.00 .,- 0.08 200
3287 17-NOV'1I 6 +,- 2 6 +,- 2 220
3287 23-FEB-89 4 +,- 1 4 +,- 2 3.45 0.01 +,- 0.03 -0.08 .,- 0.08 250
3287 12-DEC-89 11 +,- 7 5 +,- 6 3.26 .3 +,- .2 .002 +,- .004 .003 +,- .005
3287. 21'FEB'9O 5 +,- 4 3.5 +,- 1.8 2.9 .2 +,- .3 - .002 +,_. .004 .013 +,- .010
3287 29-NOV-9O 2.859 +,- '1.9 2.256 +,- 1.05 3.38 .2597 +,- .385 308.9 +,- 210
3287 15-JAII-" 6.722 +,- 2.74 6.898 +,- 2.74 3.564 .124 +,- .268 157.4 .,. 211
3487 10-MAR-II 4 +,- 10 16 +,. 16 3.11 0.00 .,- 0.15 0.00 .,. 0.24 200
3487 12-MAY'1I 6 +,. 4 4 +,- 8 3.54 0.00 .,- 0.03 0.00 .,- 0.09 210
3487 21-FEB-89 4 +,- 2 3 +,- 3 3.24 '0.02 +,- 0.03 0.01 .,. 0.05 260
3487 24'AUG-89 4.2 +,- .9 5.0 .,- 2.4 4.73
3487 1J-OEC'89 3.0 .,- 1.9 17.8 .,- 6.0 3.4 0.69 +,- 0.78 0.030 +,- 0.009 -50 .,- 100
3487 21-MAR-9O 4.066 +,- 1.93844 4.996 +,- 1.257732 2.9854 -.04399 .,- .153566 .003687 +,- .0043394 ~01093 .,- .0122559
3487 28-NOV-9O 2.148 +,- 1.07 3.451 +,. 1.14 9.5145 '214 +,- 198
3487 15-"AII-91 4.865 +,- 2.41 2.361 +,- 1.07 2.4574
3687 06-NOV-81 2 .,- 20 -6 +,. 39
3687 10-MAl-1I 17 +,- 1 23 +,- 14 1.8 0.00 +,- 0.12 0.00 +,- 0.15 210 .,- 92
3687 OS'MAY-II 10 +,- 4 21 .,- 11 1.1 0.00 +,- O.OS 220
3681 19-AUG-II 2 +,- 1 2 +,- 1 1.42 O.oJ +,- 0.04 0.04 +,. 0.08 310 .,- 90
3681 10'NOV-II 3 +,- 1 3 +,- 2 240
3687 16-FEB-89 4 +,- 3 2 +,- 2 2.33 0.02 .,- 0.03 0.00 +,- 0.05 260
3687 UP-MAY-89 3.9 +,- 1.5 6.1 +,- 2.6 210
3687 22'AUG-89 '.5 +,- .5 3.' +'-2.5 2.34 .013 +,- .004
3681 05'W-9O 1 +,- 3 1 +,- 1 3.2 '0.3 +,- 0.2 0.001 +,- 0.008 0.015 .,- 0.014
3681 29-MJ8-9O 10.9 +,- 3.91 2.361 +,- 1.01 2.0692 .6382 +,- .421 354.1 +,. 229
3681 12-NOV-9O 1.528 +,- 1.84 2.91 +,- 1.63 1.7865 .3925 +,- .355 2U.8 +,. 208
3687 08-W-9' 2.275 +,- '.11 .509 +,- .8]] 2.1441 .]]32 +,- .322 104.5 .,- 201
3986 24-_-81 4 +,- 21 21 +,- 43 3 1.2 -.OS +,- .60 .38 +,- .53 502
3986 12-0EC-81 25 +,- 8 32 +,- 13 2.27 1.4 0.00 +,- .18 0.00 .,- _10 210
3986 10-MAl-1I 26 +,. 11 24 +,- 18 2.47 0.00 +,- ,0.' 0.00 +,. 0.01 200
3986 OS'MAY-II 1 +,- 4 9 +,- 10 2.51 0.00 +,. 0.03 0.03.'- 0.10 220
3986 19-AUQ-II 4 +,- 1 4 +,- 1 2.63 0.02 +,- 0.04 0.07 .,- 0.08 200
3986 10-NOV-II 3 +,- 2 6 +,- 2 240
3986 16-FE'-89 3 +,- 3 2 .,- 2 2.97 0.01 .,- 0.03 0.00 .,. 0.04 260
-------
GROUND-WATER SAMPLING RESULTS
-------
GrlUld ".ter Dissolved R8dloc:h_lst~v R..ults .
E.st Trenches Are.
Reaulta reported In pCt'l
lieU Det. GrOll GrOis Ur8l11U1 StrontiUl PlutonlUl Alllerlc:IUI TrltlUl
IlUlller llIIpled Alphl Beta Tot.l* 90 239'240 241
~..... ....... ........ .....1:... ......... ......... ......... ......... .......
4286 08-MAR-91 .73J2 .,- 1.68 2.341 +,- 1.08 2.0351 .05043 +,- .29 11.61 +,- 196
6786 2h1UL-87 19 +,- 33 49 +,- 44 1.6 1.1 .25 +,- .80 0.6 +,- 1.4 475
6786 08- FEI-9O 0.4 +,. 1.3 0.8 +,. 1.8 2.57 0.06 +,- 0.49 0.003 +,- 0.006 0.007 +,- 0.006 370 +,- 140
1218789 22'OCT'9O 3.535 +,. 2.6 1.198 +,. .889 1.67 .1185 +,- .291 -21.6 +,- 205
1218789 08-MAR-91 3.55 +,- 2.13 1.584 +,- .927 1.6225 .543 +,- .395 107.4 +,- 201
The t8bl. fOn81t 's: result +,- c:ountlng error
-------
Ground Water Totat Redlochealltry Reluttl
Mound Ar..
Reauttl reported In pCl't
tleti Oat. GrOll GrOi. Urenh. Stronth. Ptutonl.. AMrlch. TrIU..
'~r SlIIIpt ed Atpha let a Totat- 90 239'240 241
...... ....... ........ ......... ......... ......... ......... ......... .......
0174 _-AUQ-86 9 +,- 5 3 +,- 3 3.2 0.03 +,- 0.10 0.04 +,- 0.50 260 +,- 230
0174 -1IOV-86 6 +,- 4 3 +,- 3 Z.Z -0.07 +,- 0.12 0.08 +,- 0.10 230 +,- 250
0174 11-1Wt-87 24 +,- 5 11 +,- 10 1.71 0.8 0.0 +,- 0.65 0.0 +,- 1.2 260
0174 2NIAY.87 -5 +,- 7 22 +,- 8 4.6 1.38 0.9 +,- 1.1 0.0 +,- 1.2 110
0174 04-IIAY'89 4.1 +,- 1.2 7.5 +,- 2.7
0174 15-IIOV-9O .007231 +,. _00517 .002193 +,- .00221
1787 04-IIAY-89 2.3 +,- 1.1 9.2 +,- 2.9
1787 10-AUG-89 2.1 +,- .8 2.8 .,- 2.5
1787 06-JUII'9O .9112.'- 1.959412 2.981 +,- 1.220688 1.4112 -.005775 +,- .14063 .02318 +,- .0119344 .01829 +,- .0057604
1787 06-IIOV'9O .05563 +,- .0189 .01525 +,- .0107
1787 09'IIAR-91 .01831 +,- .0085 .01198 .,- .0103
1887 08-1IAR-9O .3.196 +,- .'.68'E+O .4.451 +,- .'.235E+0
1887 05-JIJII-9O 5.714 +,- 2.15012 3.28 +,- 1.241268
2387 04.IIAY-89 4.5 +,- .7 5.9 +,- 2.7
2387 01'.1l1li-90 14.94 0.10 +,- 0.15 0.021 +,- 0.010 0.005 +,- 0.010 50 +,- 180
2387 09-IIOV-9O .001831 +,- .00185 .002179 .,- .00358
2387 08'1IAR.91 .009396 +,. .00601 .003758 +,- .00436
4386 11-1IAR-87 20 +,- 11 22 +,. 8 2.6 0.9 0.23 +,. 0.59 0.0 .,- 1.4 110
4386 03. .1111-87 16 .,- 9 13 .,- 0 1.9 2.4 0.0 .,- 0.65 0.0 +,- 0.12 110
4386 05-"111-90 :S.:S .,- 1.0 3.4 +,- 1.9 2.44 0.34 +,- 0.18 0.001 .,- 0.002
,
Th. tlbt. fonaat II: r..utt +,- counting .rror
-------
Ground Water Total Rldloch..lstry Reaults
903 Pad Ar.a
leaults reported In pel't
.
Weu Oat. Gross Gross Ur8nlUi 5 t rontllll Ptutonll.. Aller I c: II.. Trltllll
llIIIber IlIIPt ad Alpha leta Tot81* 90 239'240 241
...... ---... ........ ......... ......... ..c...... ......... ......... .......
0171 -AtJG-86 6 .,- 3 6 .,- 3 6.4 -0.01 .,- 0.07 0.04 +,- 0_07 250 +,- 230
0171 09-MAR-17 20 +,- 5 14 +,- 1 5.65 1.0 0.91 +,- 0.63 0.0 +,- 1.8 110
0171 3O-API-87 29 .,- 28 0 .,- 22 2.36 .05 .,- 1.5 0.0 +,- 2.6 290
0171 OHIAY-87 29 .,- 28 0 +,- 22 2.36 0.6 0.05 +,- 1.5 0.0 +,- 2.6 290
0171 2HIAY-87 8 .,- 13 26 +,- 24 4.97 1.0 0.0 +,- 0.59 0.0 +,- 1.3 110
0171 02-MY-89 7.7 +,- 1.0 9.4 +,- 2.7
0171 23'fEI'9O 274.1064 +,- 155.621
0171 20-1IOV-9O .02753 +,- .00891 .009608 +,- .0058
0271 - -AtJG-86 350 +,- 500 1000 +,- 900 30 32 +,- 3 4.4 .,- 2.3 -20 +,. 220
0271 11-MAR-87 93 +,- 18 86 +,- 20 6.4 3.6 1.9 +,- 1.0 0.4 +,- 4.0 110
0271 09-API-87 10 .,- 14 . 14 .,- 7 6_45 .55 .22 +,- .95 0.0 +,- 3.7 170
0271 2HIAY.87 -5.0 +,- 13 Z3 +,- 38 5.51 2.28 0.02 +,- 0.76 0.0 +,- 1.2 110
0271 26-FEI-9O +1.511 +,- .3.563E+0 +4.849 +,. +2.299E+0 14.868
0271 21-IIOV-9O .03263 +,- .0128 .01295 +,- .00782
1287 '4-JUII-9O 83.4 +,- 19.0 40.1 +,- 6.9
1287 20'SEP-9O .003362 +,- .0039 .001477 .,- .00296
1487 ZS-APR-89 1.0.'- .6 3.6 +,- 2.5
1487 14-JUII-9O 9.0 .,- 2.5 6.7 .,- 2.2
1487 18-SEP-9O .005917 .,- .00536 .004025 .,- .00458
1487 ZO-NOV-9O .003907 .,- .0031 .001774 .,- .00282
1487 11-JAII-91 .00'0T.S +,- .00215 .004685 +,- .00771
1587 03-AUG-89 .7.'- .6 3.2 .,- 2.3
1587 ZS.JUII-9O 17.0 +,- 4.2 80.0 .,- 14.4 1.95 0.18 .,- 0.14 380 .,- 181
1587 27-NOV-9O .000415 .,- .000831 _02079 .,- .01
1687. OZ-M'-89 4.4 .,- 1.0 8.3 .,- 2.6
1687 OS-AUG-89 4.4 .,- 1.2 4.6 .,- 2.5
1687 28-NOV-9O .005302 +,- .00477 .005161 +,- .00733
1687 09-JAII-" .01918 +'-.00869 .008131 +,- .00581
Th. tabt. fOnl8t I.: result .,- c:ountlng .rror
-------
Ground Veter Totel ledlocheml.try I.sult.
E..t Trench.. Are.
lesult. reported In pCl'l
Well D.t. Gros. Gros. Ur.nh.. Stront Ius Plutonh.. _rlclus Trltlus
Mlllber S8IIIpled Alph. Bet8 Totel* 90 239'240 241
...... ....... ........ ......... ......... ......... ......... ......... .......
0286 1'-MY-87 34 .,- 14 25 .,- 0 , 16.42 1_63 .72 .,- .93 0.8 .,- .96 110
0286 OhllJlt-87 25 .,- 20 40 .,- 2 0.13 1.0 0.9.'- 1.1 0.0 .,- 1.7 110
0286 27-JlJIt-89 33.5 .,- 4.0 24.5 .,- 5.8
0286 07-JlJIt-9O 12.09 .,- 4.95292 10.54 .,- 2.80672 8.8565 - .02116 .,- .204624 .01072 .,- .0105468 .01322 .,- .0129732
0374 -AUG-86 13 .,- 7 10 .,- 5 -0.04 -0.16 .,- 0.31 -0.01 .,- 0.09 250 .,- 220
0374 17-MM-87 24 .,- 8 35 .,- 17 0.39 9.2 0.0 .,- 0.67 0.0 .,- 3.2 23Q
0374 03-JlJIt-87 -2 .,- 9 29 .,- 19 1.53 1.0 0.0 .,- 0.79 0.0 .,- 1-2 110
0374 25-MY-9O 4.4 .,- 1.3 2.9.'- 1.9 3.34 0.24 .,- 0- 16 0.002 .,- 0.002 0.004 .,- 0.004 390 .,- 241
0374 01 -AUG-9O .01727 .,- .00654 .003343 .,- .00301
0374 16-NOV-9O _0459 .,- .0155 .005111 .,- .00442
0386 -SEP-86 170 .,- 80 220 .,- 40 7 0.01 +,- 0.07 0.02 ./- 0_13 160 .,- 230
0386 12-MY-87 90 .,- 46 39 .,- 21 7.16 1.71 0.0 +,- .70 0.0 .,- 2.2 260
0386 08-JlJIt-87 33 .1- 0 35 +,- 0 6.8 1.0 0.0 +,- 0.59 0.1 .,- 1.5 320
0386 23'MM-9O 19.5 +,- 5.0 13.5 .,- 3.0 15.62 0.09 .,- 0.15 -0.004 .,- 0.006 0.004 .,- 0.004 570 .,- 133
0386 08-JlJIt-9O ' 10.05 .,- 3.51624 11.24 +,- 1.460396 7.9497 - .09192 ./- .1868664 .01126 ./- .0073853 -.000553 ./- .005417
0386 15-1ICJV-9O 0 .,- .00498' .002031 ./- _00237,
0386 t4-MM-91 .004641 +,- .00418 .007005 +,- .00814
0774 -AUG-86 4 +,- 6 10 +,- 4 2 0.06 +,- 0_08 0.10.'- 0_06 230 +,- 210
0774 07-MY-87 6 +,- 16 108 ./- 100 0.882 1.37 - 10 ./- .61 0.0 .,- 1.2 110
0774 za-MAY-87 27 +,- 31 79 .,- 22 1.4 1.0 0.03 .,- 0.76 0.0 ./- 1.2 110
2274 -'EP-86 13 .,- 7 12 .,- 4 6 0.15 .,- 0_16' 0_05 +,- 0_06 70 +,- 220
. 2274 15-MAl-87 17 .,- 4 12 .,- 15 5.73 5.8 0.0 ./- .63 "0
2274 Z1-MAY-87 2Z .,- 13 56 .,- Z2 0.97 1.0 0_00 .,- 0.70 0.0 +,- 1-2 "0
2274 Z1-JUII-9O 14_Z .,- 5.7 16.7 .,- 6.0 0_001 .,- 0.004
2274 05-1ICJV- 90 -.000694 +,- _00139 .003456 +,- .00487
2587 O9-MY-89 1.8 +,- 1_1 7.~ .,- 2.5
2587 18-AUG-89 1.7 +,- .8 1.5 .,- Z.5
2587 1h1Ul-9O 1_999 +,- 2.56376 1_944 .,- .971824 1.315 -.04218 .,- .24402 .00999 .,- .0078478 .02259 ./- .0096785
2587 05-1ICJV-9O .05658 .,- .013 .005517 .,- .00705
2587 O9-MAl-91 .005675 .'-.00369 .001052 .,- .00558
2787 "'MAY-89 5.5 .,- 1.4 14.5 .,- 5.0
Z787 2Z-AUG-89 5.4 .,- .7 8.2 .,- 2.8
5187 11-MAY-89 1.9 .,- 1.0 5.4 .,- Z.6
5117 11-SEP-9O -.000358 +,- .000718 .00177 +,- .00355
5187 21-1ICJV-9O .00377 +,- .00269 .001948 +,- .00227
5187 11-JU-9t 0 .,- .00316 .0006455 +,- .00273
-------
GrCMnt W8ter Totel 18dloch_l.try IHul i.
E8It Trenche. Area,
Rnult. rlpOrtld In pCl'l
wall Oat. GrOla GrOll Uranha Stronth.. Plutonh.. a.trlch.. TrltlUl
llulber SlIIPlld Alph. ht. Tot.l* 90 239'240 241
...... --... .....-. ..-..... ......... ......... ......... ......... .......
DZ86 11-.'-81 34 .,- 14 25 .,- 0 16.42 1.63 .12 .,- .93 0.8 .,- .96 110
0286 01-.1&11-81 Z5 .,- ZO 40 .,- 2 0.13 1.0 0.9.'- 1.1 0.0 .,- 1.1 110
0286 27-JlII-89 ".J .,- 4.0 24.3 .,- 3.8
0Z86 07-JIII-9O 12.09 .,- 4.95292 10.54 .,- 2.806n 8.8565 -.02116 .,- _2046Z4 .010n .,- .0105468 _01322 .,- .0129732
0314 -AUG-86 13 .,- 7 10 .,- 5 -0.04 -0.16 .,- 0.]1 -0.01 .,- 0.09 250 .,- 220
0314 17-MR-87 24 .,- 8 35 +,- 17 0.39 9.2 0.0 .,- 0.67 0.0..'- ].2 DO
0]14 0]-"111-87 -2 .,- 9 29 .,- 19 1.53 1.0 0.0 .,- 0.79 0.0 .,- 1.2 110
0]74 25-.'-90 4_4 .,- 1.] 2_9 +,- 1.9 ].]4 0.24 +,- 0.16 0.002 +,- 0.002 0.004 +,- 0_004 390 +,- 241
0314 01-AUG-90 . .01127 .,- _00654 .00]]4] +,- .00301
0374 16-!IOV-90 .0459 .,- .0155 _005111 .,- .00442
0386 _-.P-86 170 +,- 80 220 +,- 40 7 0.01 .,- 0.07 0.02.'- 0.13 160 +,- DO
0386 12-.'-87 90 .,- 46 39 .,- 21 7- 16 1.71 0.0 +,- .70 0.0 +,- 2.2 260
0386 08-_-87 33 +,- 0 35 +,- 0 6.8 1.0 0.0 +,- 0_59 0.1 .,- 1_5 320
0J86 23-MR-90 19.5 .,- 5.0 13.] .,- 3.0 15.62 0.09 +,- 0_15 -0.004 .,- 0.006 0.004 +,- 0.004 570 +,- 135
0J86 08- .l1li-90 10.05 +,- 3.51624 11.24 +,- 1.460396 1.9491 - .09192 .,- .1868664 .01126 .,- .0073853 - .000553 .,- .005411
0386 15-!IOV-9O 0 +,- .00498 .002031 +,- .00231
0]86 14-MR-91 .004641 +,- .00418 .007005 +,- .00814
0174 -AUG-86 4 +,- 6 10 .,- 4 2 0.06 +,- 0.08 0.10 +,- 0.06 230 +,- 210
0174 07-.'-81 6 +,- 16 108 .,- 100 0.8112 1.31 .10.'- .61 0.0 .,- 1.2 110
0174 28..'-87 21 +,- 31 79 +,- 22 1.4 1.0 0.03 .,- 0.76 0.0 +,- 1.2 110
2274 _-.P-86 13 +,- 7 12 +,- 4 6 0.1I' +,- 0.16 0.05 +,- 0.06 . 70 +,- 220
,2214 13-MR-87 17 .,- 4 12 +,- 15 3.73 3.8 0.0 .,- .63 110
2274 21-.'-87 22 .,- 13 J6 .,- 22 0.97 1.0 0.00 .,- 0.70 0.0 .,- 1.2 110
2274 21-JlII-9O 14.2 +,- J.7 16.7 .,- 6.0 0.001 .,- 0.004
2274 0]-!IOV-9O -.000694 +,- .00139 .00J436 .,- .00487
2581 09-.'-89 1.8 +,- 1.1 7.4 .,- 2.5
2587 18-_-89 1.7 +,- .8 1.5 .,- 2.J
2587 11-M-9O 1.999 .,- 2.36376 1.944 .,-.91811Z4 1.315 -.04218 .,- .24402 .00999 .,- .0078478 .02259 .,- .0096785
2587 O5-!IOV-90 .03638 .,- .013 .005517 +,- .00705
2587 09'1IAR-91 .003675 +'-.00369 .001032 +,- .00358
2787 11-.'-89 5.3 .,- 1.4 14.J +,- ].0
2111 22-_-89 5.4 .,- .7 8.2 +,- 2.8
J181 11-.'-89 1.9 ~,. 1.0 5.4 .,- 2.6
3181 18-.P-9O -.000358 .,- .000118 .00117 +,- .00355
3187 21-!IOV-9O .00317 .'-.OOZ69 .001948 .,- .00221
3187 11-"AII-91 0 .,- .00316 .00064J3 +,- .00273
-------
Ground W.t.r Tot.l R8dloch..lstry a.sults
E.st Trench.s Ar..
Resultl reported In pel,l
weu Olte Groll Gros. Urlnh. Strooth. Plutontua _rh:h. Trtttua
lIumar SlIIpl ed Alphl B.t. Total- 90 2J9,240 241
...... ....... ....!!I... ......... ......... ......... ......... ......... .......
6786 OhMl-87 6 +,- , 40 +,- 8 3.4 1.0 0.0 +,- 0.62 0.0 +,- 1.2 420
6786 12-8-90 3.852 .,- 2.58524 3.256 +,- 1.13288 3.2891 -.02858 +,- .183554 .005964 .,- .0043943 .002452 +,- .0048059
1218789 ZS-MY-9O 4.1.'- 1.2 3.0 .,- 1.\1 2.28 0.16 +,- 0.16 0.004 +,- 0.004 0.010 .,- 0.008 210 +,- 230
1218789 22-OCT-9Q .005345 +,- .00439 0 +,- .00565
1218789 OI-Mlt-91 .06255 +,- .0206 .02432 +,- .0161
,
Th. tlbl. fOMlit II. r..ult +,- counting .rror
-------
Ground Water Totat Redloch88lltry.Reluttl
Ealt Trenches Area
Reluttl reported In pCl,t
We" Date GrOll GrOll Unnh... Strontha PI uton ha AalerlclUl TrltlUII
Illaber SMpted Atpha 8eta Total- 90 239'24~ 241
...... ....... ........ '......... ...:1...=8 ......... ......... 81:....... .......
3217 22-JUN.9O 25.2 +,- 7.9 27.0 +,. 11.1 1.19 0.23 +,- 0.16 0.001 +,- 0.002 -0.002 +,. 0.002 490 +,- 192
3217 29,IlOl/- 90 .000529 +,- .00224 .0006988 +,- .00297
3217 15-JAII-91 .001176 +,- .00235 .0008169 +,- .00225
3417 24-AUG'89 4.2 +,- .9 5.0 +,- 2.4
3687 09-MAY-19 3.9 +,- 1.5 6.1 +,- 2.6
3687 05.JIJI-9O 5.1 +,- 1.4 3.5 +,- 1.9 2.84 0.30 +,- 0.22 0.006 +,- 0.006 0.004 +,- 0.004 350 +,- 171
3687 29-AUG-9O .0008621 +,- .00173 .0008876 +,- .00244
3687 12-IlOl/-90 .00093n +,- .00133 .002632 +,- .00373
3687 08-MAR-91 .05767 +,- .0211 .00373 +,- .00614
3986 'SEp.86 44 +,. 21 39 +,- 13 3.7 0.00 +,- 0.09 .0.01 +,- 0.03 180 +,- 220
3986 06'MAY-17 0 +,- 0 27 +,- 11 3.2 0.6 0.0 +,- .57 0.0 +,- 2.6 250
3986 03-JIJI.17 0 +,- 7 6 +,. 5 1.1 1.0 0.21 +,- 0.73 0.0 +,- 1.2 110
3986 09-MAY-19 2.1 +,. .1 4.3 +,- 2.6
3986 16-AUG-89 1.1 +,- .7 2.2 +,- 2.3
3986 ' Q4-JIJN-9O 5.1 +,. 1.4 4.6 +,- 1.9 4.45 0.30 +,- 0.17 0.003 +/- 0.004 290 +,- 171
3986 01-IlOl/-90 . .003735 +,. .00477
3986 19-MAR.91 - .000211 +,- .000423 0 +/- .00753
4086 06-MAY-17 33 +/- 13 41 +,- 21 10.39 .66 .24 +,- .73 1.0 +,- 4.6 110
4086 11-MAY-89 6.3 +/- 1.4 5.4 +/- 2.7
4186 -SEP'86 140 +/- 40 94 +,- 11 6.6 0.01 +,- 0.08 -0.03 +/- 0.10 130 +,- 220
4186 06-MAY-87 36 +,- 13 53 +/. 31 3.7 4.56 0.0 ,+/. .85 220
.4186 01-Jllt-17 8 +/- 12 30 +,- 20 2.1 1.0 0.0 +/- 1.2 110
4186 11-MAY.89 3.2 +,- 1.6 7.8 +,- 2.6
4186 22-JIII-9O 16.2 +/- 4.2 9.1 +/- 2.6 6.71 0.23 +/- 0.18 0.002 +,- 0.004 0.007 +,- 0.010 480 +/- 192
4186 20-IlOl/-90 .001349 .,- .00191 .005358 +,- .00383
4186 10-JAII-91 .0008898 .,- .00178 .02087 +/- .0188
4286 -.P-86 130 +/- 70 180 +/- 40 9.8 0.50./- 0.16 0.07 +,- 0.16 210 +/- 230
4286 12-MAII-87 52 +,- ,. 54 +/- 32 2.79 0.9 0.12 .,- 0.48 0.3 .,- 4.2 110
4286 26-MAY-87 371 +,- 90 213 +/- 36 1.4 1.0 0.0 .,- 0.55 0.0 +,~ 0.12 110
4286 D9-MAY-89 3_0 .,- 1.4 3.9 .,- 2.6
4286 "-AUG-89 .9 .,- 1.2 . 4.0 ./- 2.4
4286 11-JIII-9O 1.754 .,- 1.973n 2.361 .,- 1.110144 1.7619 -.00348 .,- .235788 .01607 +,. .0075989 .0224 +,- .0099548
4286 16-IlOl/-90 .2152 .,- .073 .0365 +,- .0115
4286 08-MAR-91 .00396 +,- .00426 .005284 +,- .0075
6786 -1IOV'86 82 .,- 48 120 +,- 30 3.6 0.22 +,- 0.24 0.00 +/- 0.08 150 +/- 250
6786 11-MAY-87 34 ./- 22 25 +/- 17 3.5 2.32 0.0 .,- .74 0.6 .,- 1.4 270
-------
GROUND WATER SAMPLING RESULTS
-------
APPENDIX B-2
GROUND-WATER SAMPLING RESULTS
SUMMARY TABLES
SUBSURFACE IMIIRA
-------
SU8nIry Tabla for Ground-Water Volatile Organic Cont..lnanta
Momd Area
le.ulta reported In U8/l
lIi8er of lluar of I1l8ber of . Average of "Inl- of Ma.l- of
Anll,te .nul ta lIon.Detecta Hlta All V.lun.. All V.lun Valun
ChlorC88thane 77 77 0 82.35 '0 U
Ir_thane 77 77 0 82.35 10 U
vinyl Chloride 77 77 0 82.33 10 U
CIIloroethane 77 77 0 82.33 10 U'
Methylene Chloride 77 44 33 80.15 1 I" 4100 I
Acet- 77 58 19 139.7 Z I" 8200 I
Carbon Dlaulflde 77 75 2 40.71 5 .. 4.1
1,1.Dlchloroethene 84 82 2 35.19 4U 90
1,1-Dlchloroethane 77 77 0 40.69 5 U
Trane-1,2-! '"roath- 8 6 2 8.35 . 5 U 38
1,2-Dlchloroelhene (total) 80 13 7 38.65 4 U 28
Chlorofol'1l 84 68 16 35.38 2 .I 38
1,Z.Olchloroethane 84 IQ 1 34.51 4U 20
Z-Iutanone 77 76 1 82.14 6.. 6.1
1,1,1-Trlchloroeth- 84 81 5 14.48 1 .I 16
Carbon Tetrachloride 84 67 17 40.67 1 .. 80
Vinyl Acetate 77 77 0 82.33 10 U
IrOlDdlchlorC88thane 77 77 0 40.69 5 U
1,2-Dlchloropropene 77 77 0 40.69 5 U
cll-1,3-Dlchloropropena 77 77 0 40.69 5 U
Trlchloroethene 84 45 39 562.2 Z .I 18000
Dlbr08OChlorC88th- 77 77 0 40.69 ~U
1,1,Z-Trlchloroeth- 84 84 0 14.56 4U
lenzene 77 77 0 40.69 5U
Trene-1,5-0Ichloroprop8nl 77 77 0 40.69 5U
Z-Chloroethylvlnylether 28 Z8 0 68.50 10 U
Ir08forll rt 77 0 40.69 ':, U
4-Methyl-Z-pentanone 77 76 1 82.32 4 .I 4 .I
Z-lIuanone 77 77 0 82.33 10 U
'etrachloroethene M 5Z 52 10248 1 .I 5Z8000
1,1,Z,Z-T.trachloroethane 77 77 0 40.69 5U
ToI- 77 69 8 40.78 0.9 .I 5 I
Chlorablnlene 77. 77 0 40.69 5U
Ethylblnlene 77 77 0 40.69 5 U
styrene 77 76 1 40.75 5 U 9
Tot.l lI,l.... 77 77 0 40.69 5 U
"....an II flrlt cClllP'ted It Indlvlul Itltlone and tI vereg-: If reault qu8llflar II U, atatlatici are calculated ualng 0.5 the reported r..ult.
11..110 Standard, U-An8lped but not detected, ""r..ent.. .'ON Detection U81t, '''raant In Il", E-Eatl_ted Val.., D-S8IIple diluted
-------
Su.aary T8bie for Ground-Wlter Voiltlie Organic Cont..inenta
903 Ped Are.
l..uU. reported In ugli
N~r of NUltler of NUltler of Averlge of "Inl- of ".xl- of
Anliyte Re.uitl Non-Detect. Hitl Ai i V.iue." Aii V.i,," Vei,,"
Ct\ior_th- 86 86 0 14.51 10 U
IrC888th- 86 86 0 14.51 10 U
Vlnyi Chiorlde 86 85 1 14.47 1 01 1 01
Chioroeth- 86 86 0 14.51 10 U
Methy'ene Ch'orlde 86 50 36 8.63 1 01 110 Sol
Acetone 86 68 18 15.27 28J 45 Sol
C.rbon DI.u'flde 86 83 3 7.23 2 01 3 01
1.1.0Ich'oroethene 100 66 34 17.56 1 01 673
1.1-0Ich'oroeth- 86 76 10 8.53 2 01 38
'r_.1.Z.0Ich'oroethene 14 11 3 19.29 5 U 140 01
1.2.0Ich'oroeth- (tot.,) 92 69 23 21.78 1 01 380
Ch'orofonl 100 26 74 76.02 2 01 1525
1.2.Dlch'oroeth- 100 96 4 9.20 2 01 400
Z-Iut- 86 8J :s 15.62 401 150 I
1.1.1.Trleh'oroeth- 100 73 27 33.49 1 01 2892
Clrbon 'etrach'orlde 100 54 66 624.8 4U 6400 DE
Vlny' Acet.te 86 86 0 14.51 10 U
'r08OdlchiorOl8th- 86 85 1 7.22 1 01 1 01
. '.Z.Dlchioropropane 86 85 1 7.24 :s 01 1 01
cl.-'.J-Dlchioropropene 86 86 0 7.24 5U
'rleh'oroeth- 100 17 I] 1590 5U 28800
Dlbro8ach'orOl8th- 86 86 0 7.24 )U
1.1.Z-Trlchloroeth- 100 94 6 6.74 4U 51
lenIene 86 I] 1 7.21 0.9 .. Z ..
Tr_-'.:S.Dlch'oropropena 86 86 0 7.24 5 U
Z.ChIoroethylvlnyl.ther 12 12 0 7.45 10 U
Ir-fOl'8 86 86 0 7.24 5 U
4.Methyl-Z-pentanona 86 86 0 14.51 10 U
Z.II""" 86 85 1 14.91 5 U 47
'etrachloroethene 100 25 15 1].01 1 .. 1000
'.1.Z,Z-,.trach'oroethene 86 84 2 7.26 :s .. 401
'0'" 86 81 5 7.20 1 .. 4..
Chlorab8n&ene 86 86 0 7.24 5 U
Ethy'bInz.. 86 86 0 7.24 5 U
Btyr.. 86 86 0 7.24 5 U
'ot.I X,I... 86 85 1 7.22 0.8 .. 0.8 ..
..~... I. flr.t CCIIIIpUted et Indl"l_i .t.tlone end then .ver....: If r..uit queUfler I. U. .t.tl.tlce ere c.icui.ted willi 0.5 the reported reeuU.
111Il81o Stenderd. UaAne'yzed but not detected. J.pr..ent be'ow Detection ".It. ..pr..ent In ".... E8£.tI_ted Ve'UI. D-SIIIIp'e dHuted
-------
GROUND-WATER SAMPLING RESULTS
-------
SUII8ry Tlble for Ground-W.ter Vol.tlle Organic C~t..lnentl
E.lt Trench.. Are.
R..ult. reported In "8/l
llllllber of lI""r of llllllber of Averlge of "Inl- of ....1- of
AnIIlyte Reaul t. lion-Detect. Hit. All v.lue... All v.lues V.l,,"
Chlor_thene 217 217 0 29.94 10 U
'rC8l8lthene 217 217 0 29.94 10 U
Vlnvl Chloride 217 216 1 29.92 2 J 2 J
Chlor08th- 217 217 0 29.94 10 U
",thylene Chloride 217 135 84 23.n 1 B" 1600 B
Acetanl 217 167 50 35.78 1 "I 4100 B"
C.rbon Dllulflde 217 213 4 15.02 2 .. 12
1,1-Dlchlor08thene 246 215 31 18.83 1 J 506
1,1-Dlchlor08th- 217 214 3 14.99 3 .. 6
Trlnl-I,2-Dlchlor08thene Z6 23 3 5.40 2.. 53
1,2-Dlchlor08thlnl (tot. I) 231 200 31 20.64 1 .. 170
Chlorofo1'8 . 246 156 90 50.62 1 J 2810
1,2-Dlchlor08th- 246 240 6 16-28 2 J 320
2-lutlnGnl 217 208 9 29.98 3 I" 10 I
""I-Trichloroethane 246 2n 21 19.15 1 .. 200
C.rbon T.trlChlorlde 246 150 96 209.4 1 J 4835
Vlnvl Ac.t.te 217 217 0 29.94 10 U
IralOdlchlor088th- 217 216 1 14.96 1 J 1 J
I,Z-Dlchloroprapene Z17 211 0 14.91 5U
cll-I,J-Dlchloropropenl 217 211 0 14.91 5U
Trlchlor08thlnl 246 145 101 3]89 1 .. 221860
DlbrOlDChlor088th- 217 217 0 14.97 "SU
1,1,2-Trlchlor08thene 246 245 1 14.91 4U 5
lenaene 217 215 2 14.98 1 .. 6
Trene-I,3-Dlchloroprapene 217 217 0 14.97 5U
2-Chlor08thylvlnvlether 58 58 0 5.00 10 U
'r-fortl 217 217 0 14.97 5U
'-Methyl-2-pentlnGnl 217 211 5 30.08 1 .. 35
2-Hl..... 217 214 J D.17 1 .I, 975
Tetr8chtor08thene 246 136 110 105.2 1 .I 3200
1,1,2,2-,.tr8chtor08thene 217 214 3 15.07 2 .I 15
Tol... 217 198 19 15.13 1.. 30..
Chlorobenlene 217 215 2 14.89 5 U 11 I"
Uhylblnzene 217 215 2 14.97 3.. 3 ..
Ityrlnl 217 217 0 14_97 5U
Tot.l Xyllnll 217 215 2 14.91 2 I" 4 ..
---Mean I. flr.t COIpUted .t IndividUal .t.tlone end then .ver'lld; If r..ult quellfler II U, It.tl.tlc. ere c.lcul.ted U81", 0.5 the reported r..ult.
IIS.lIo Stendard, U8An1lyzld "'t not detected, ""r..ent belOl8 Detection "8It, I"r..ent In II", E.EltI_ted V.lue, D8SIIIpIe dltuted
-------
Sua8lry Tabte for Ground.Water Dillotved Metat Cont..lnantl
Mound Area
Relutta reported In 88/1
NlJIIbar of Nlllt)er of NUlllber of Avarage of "Inl- of Malll- of
Analyte aalultl lion' Detects Hits All VIlun" All Vltun Vilun
Al..l,.. (At) 48 19 29 0.0941 0.015 U 0.2556
Antl8Ofl1 C$b) 46 42 4 0.0168 0.006 U 0.0395 .
Arsenic (As) 46 44 2 0.0034 0.001 U 0.007
.erl.. CBe) 48 8 40 0.1156 0.0246 0.1949
.eryt".. (Ie) 46 46 0 0.0018 0.001 U
CadlI.. (Cd) 46 44 2 0.0014 0.0004 J 0.001 I
Celel.. (CI) 48 0 48 73.1742 12.326 '"
Ceal.. (CI) 45 41 4 0.0970 0.005 U 0.17.
(hr_l.. (Cr) 48 J8 10 o.oon 0.003 U 0.0676
Cobalt (Co) 48 48 0 0.0113 0.002 U
Copper (Cu) 48 28 20 0.0262 0.002 U 0.4ZJ5
Iron (Fe) 48 21 27 0.0334 0.002 U 0.1942
Lead (Pb) 46 42 4 0.0021 0.001 U 0.008
Llthl.. (LI) 28 19 9 0.0350 0.002 U 0.01 J
Magnes". ("g) 48 0 48 8.1421 0.0342 32
"8nII_se (tin) 48 14 34 0.0584 0.001 U 1.2694
Mercury (Hg) 46 43 3 0.0001 0.0002 U 0.0002
Mol ybd8n8(Mo) 48 42 6 0.0257 0.002 U 0.057
IIlckel (NI) 48 33 15 0.0562 0.003 U 0.6874
Potl..l.. (I( ) 46 12 34 6.2176 0.48. 28
Selenl.. (Se) 46 39 7 0.0025 0.001 U 0.004 J
Sit ver (AI) 48 44 4 0.0047 '0.002 U 0.0103
Sodl.. (lie) 48 0 48 27.0659 5.37 106
Strontl.. (Sr) 48 2 46 0.4216 0.1107 0.83
Thllll.. (Tl) 46 46 0 0.0040 0.001 U
Tin. (In) 19 16 3 0.0341 0.01 U 0.0888 .
Vanedl.. (V) 48 39 9 0.0177 0.002 U 0.0377
Zinc (In) 48 13 35 0.0908 0.0045 I 2.5552
**aMaen Is flrlt c~ted et Indlvlduat atetlona end then avereged; If reautt quatlfler II U, stetlltlcs era catcutated using 0.5 the reported r.lutt.
11$*110 Standard, tJ8An1tyzed but not detected, J.Present batON Detection ".It, '.ve". Leal then CRDL end Ir.etar then IDL, EaEltl.ted Vetue
-------
SU818ry Table for Ground.W.ter Diliolved Metal Cont..lnentl
903 P8d Area
.elul ta reported In l1li/1
IllIIber of lI!lltler of IIwmer of Average of "Inl- of ....1- of
An81yte .elUi tl lIon.Detectl Hltl All Values.- AU Values Values
Ah.l... (At) 76 29 47 0.0685 0.01 U 1.19n
Antl8on)' (Sb) 77 61 16 0.0205 0.006 U 0.071
Anenle (AI) 74 66 8 0.0024 0.001 U 0.004 J
larll. (Ia) 77 8 69 0.1242 0.02)8 J 0.9321
leryU II. (Ie) 76 n 4 0.0014 0.001 U 0.0042 B
C8dIIIUI (Cd) 77 n 5 0.0020 0.0005 J 0.0086
CalelUi (Ca) 77 0 77 80.0828 6.0019 408.4416
C..IUI (CI) 7J n 1 0.1603 0.005 U 0.1 B
ChrOllIUl (Cr) 77 48 29 0.0102 0.003 U 0.0561
C0b81t (Co). 77 n 5 0.01J1 0.003 U 0.17
copper (Cu) 77- 50 27 0.0064 0.002 UE 0.0397
Iron (Fe) 77 27 50 2.5359 0.006 B 75.2
Le8d (Pb) 7J 61 12 0.0026 0.001 U 0.02
LhhlUl (LI) 48 16 32 0.0611 0.0055 I 0.1J
lIa8"8llUi (lIg) 77 0 77 15.8845 0.0295 79.8 E
l18nganete (1In) 77 25 52 0.0959 0.001 U 1.05
Mereury (Hg) 74 70 4 0.0001 0.0002 U 0.0003
Mol ybdeIuI(lIo) 71 59 19 0.0182 0.003 U 0.192
- IIlckei (III) 77 60 17 0.0354 0.004 U 0.2561
Pota..IUI (Ie) n 16 56 3.1997 0.7 31
SelenlUl (5e) 74 35 39 0.0075 .001 U 0.04
SHv.r (AI) 77 65 12 0.0049 '.0.002 U 0.0424
SodlUl (lIa) 77 0 77 89.17J1 7.87 304
StronttUi (Sr) 71 1 77 0.6762 0.201 7.7076
ThaU IUI (Tl) 74 71 J 0.0033 0.001 U 0.001 I
Tin (In) Z9 19 10 0.0)81 0.007 U 0.135 I
V8MdIUl (V) 77 59 18 0.0159 0.002 U 0.0915
Iinc (In) 71 32 46 0.0201 0.0024 . 0.0712
---MIen 11 f'rlt cG8pUted at Indlv'dull Itatlone and then averegedi If r..ult quellfler la U, atatlatlca .re calculated Ullng 0.5 the reported r..ult.
11''''0 Standi rd. ""AnlI,led but not .tect8d, J.pr..ent bel 011 Detection lI.h, levalue I..a than CRDL and greater than IDL, E*Eatl_ted Value
-------
GROUND-WATER SAMPLING RESULTS
-------
Summary Table for Ground-Water Dissolved lIetal Cont..ln.nts
East Trench.s Area
Relultl reported In 18/1
Nl8iIer of NurtJer of Nl8iIer of Averlge of IIlnl- of lIexl- of
Analvt. Inultl Non' Detects Hltl Alt Vilues** AU Vilues Vilues
AlUlI... (AI) 187 59 128 0.1242 .00003 B 8.14
Anti.,., (Sb) 183 148 35 0.0214 .00005 U 0.1913
Arlenlc (AI) 182 160 22 0.0026 0.0009 U 0.019
Blrlua (BI) 187 17 170 0.1388 .00025 0.3254
leryll IUI (Be) 183 176 7 0.0015 0.0002 U 0.0097
Cecil".. (Cd) 183 166 17 0.0019 0.0003 J 0.0089
CIle".. (Ca) 187 0 187 110149.5 .037208 9905678
C..lua (CI) 179 168 11 0.1136 D.OO5 U 0.4 I
Chr08l18 (Cr) 187 132 55 0.0082 0.003 U 0.1223
C0b8lt (Co) 187 181 6 0.0103 . .00003 U 0.0098 8
Copper (CU) 187 109 78 0.0097 0.002 U 0.2227
Iron (Fe) 187 64 123 0.1471 .00003 U 14.9
leld (Pb) 180 154 26 0.0027 0.001 U 0.072
LfthlUl . (If) 95 32 6J 0.0628 0.0034 U .685
111"1118 (lIg) 187 1 186 20.9696 .029053 225.3522
"lI1II...e Uln) 187 67 120 0.0428 0.001 U 0.854
Mercury (HI) 182 170 12 0.0002 0.0001 J 0.013
Molybd8nUl(Mo) 186 132 54 0.0228 .OOOOJ U 0.19
Nickel (Nf) 187 114 73 0.0305 .00006 0.6822
Potulh.. (K ) 181 38 143 2.4419 0.382 , 14
SelenlUl (Ie) 182 130 52 0.0055 0.001 U .22 J
I It ver (All) 187 153 34 0.0048 0.002 U 0.128
lodlUl (Na) 187 0 187 50.4462 .043878 268
Itronth.. (Ir) 186 1 185 0.7189 .00141 4.744
ThaU 118 (Tn 182 179 3 0.0032 0.0009 III 0.0016 BII
Tin (In) 74 42 32 0.0414 0.007 U .164
VenldlUl (V) 187 132 55 0.0169 .OOOOJ U 0.1137
Zinc (Zn) 186 69 117 0.0277 0.002 U 0.98
**"'een II flrlt COlpUted It Individual Itltlons end then Iverlged; If r..ult quellfler II U. .tatlltlcs ara calcullted using 0.5 the reported r..ult.
NS-No St""rd, U-An8lyzed but not detected, J"r..ent below Detection 1I.lt, '-vllue I... then aDl end greater then 10l, E-E8tI_ted Vllue
-------
S~ry T.tIte for GrCKnl'W.ter Tot.t "et.t Cont.lnents
"CKnI Are.
Reaut t. reported in 88/t
IllIIIber of IIUlCer of IIUllber of Aver'lIe of "i"i- of ".xi- of
Anstyte luuLt. lion-Detect. Hit. Att Vltue... At' VI'ue. V.tues
Atusi... (At) " 0 " 1.0964 0.0673 8* 2.55 *
Ant88Of'1y (Sb) " 1 3 0.0415 0.03 U 0.0514 III
Ar.enic (A.) " " 0 0.0010 0.002 U
I.rtus (II) " 0 " 0.1680 0.137 I 0.198 .
leryU ius (Ie) " " 0 0.0006 0.001 U
c..ius (Cd) " 0 4 0.0026 0.0023 . 0.0036 .
C.'cius (CI) " 0 4 104.3000 81." 116
Cuius (C.) 5 4 1 0.1048 0.002 UWII 0.08 I
ChrC8lus (Cr) " 0 " 0.0330 0.0151 0.051
Cabe't (Co) " 1 3 0.0041 0.0031 . 0.0064 I
Copper (CU) 4 1 3 0.0011 0.003 U 0.02 I
Iron (f.) 4 0 " 1.4179 0.0332 . 3.54
lead (Pb) 4 2 2 0.0022 0.001 U 0.0045
l ithl us (lI) 4 1 3 0.0095 0.0063 . 0.0064 I
"'... i us ("II) ~ 0 " 12.0183 9.61 13
........... (tin) 4 0 4 0.0402 0.0064 . 0.0995
".rcury (HII) 4 4 0 0.0001 0.0002 U
Mo' ybderUI(Mo) 4 1 3 0.0056 0.0032 . 0.0081 .
lIick., (IIU 4 0 4 0.0215 0.006Z . 0.031" I
Pot...ius (I( ) 4 0 4 1.4901 o.m I 2.15 I
S.tenlus (II) 4 2 2 0.0013 0.001 U 0.002 I
4 4 0.0010 . . D.oo26 8 0.025
S" Vir (All) 0
Sodius (II.) 4 0 4 10.9561 7.6 18
Strontlus (Ir) " 0 4 0.4600 0.407 II 0.492 II
Th.U 'us HU 4 4 0 0.0010 0.002 U
Tin (In) " 1 3 0.0381 0.0251 .11 0.0279 III
Ven8dlus (V) 4 0 4 0.0101 0.0063 . 0.0124 .
Zinc (In) 4 0 4 0.0326 0.0181 . 0.0441
..-Meen I. flr.t co.putad .t indlvlduet .t.tiona end then .ver8lled; If r..utt qua'ifier I. U. .t.tl.tic. .re cetcu'.ted using 0.5 the reported re.utt.
11'..0 It8nd8rd, U.An8'yzed but not detected, ...Pruent be'ow Detection ".It, .-Vlt- ,... then caDl end IIre.t.r then IDl, Eafatl.ted V.tue
-------
.S~ry T8bie for Grcxnt'Ueter Tot.i Met.i Cont_lnent.
903 Ped Are.
Reauita reported In ~i
NUllber of NudMtr of NUliber of Aver..e of Mlnl- of Melll- of
An8iyt. ...uita Non-Detect a Hlta Ai i V.iuea** Ai i V.iUft V.iUft
Aiu.l.... (AU 10 3 7 2.9564 0.03 I 18.4
Antl-.y ($b) 10 10 0 0.0211 0.022 U
Araenlc (AI) 10 8 2 0.0013 0.001 U 0.0026 8
Barlu. (Be) 10 4 6 0.1302 0.0743 8 0.291
leryU Iu. (Be) 10 9 1 0.0028 0.001 U 0.0137
'C8C8Iu. (Cd) 10 6 4 0.0028 0.002 U 0.0073
C.ieh. (c.) 10 0 10 103.4143 33.1 286
. c..lu. (CI) 10 10 0 0.1789 0.002 IN
Chr_118 (Cr) 10 3 7 0.0209 0.004 U 0.081
C0b8it (Co) 10 10 0 0.0048 0.004 U
Copper (Cu) 10 5 5 0.0113 0.0072 8 0.0351
Iron (Fe) 10 1 9 34 .2546 0.01 U 236
Leed (Pb) 8 3 5 0.0028 0.0014 8 0.008
Llthlu. (LI) 10 4 6 0.0706 0.0426 B 0.154
"'..all8 (Mil) 10 0 10 24.7936 7.26 82
M8nII"" (tin) 10 0 10 0.2112 0.0062 8 1.24
Mercury (HI) 10 10 0 0.0001 0.0002 U
Mol ybderuI(Mo) 10 5 5 0.0083 0.009 U 0.0196
Nickel (NI) 10 5 5 0.0415 0.009 U 0.269
Pot..all8 (It ) 10 2 8 2.5614 0.97 I 6.41
Seienll8 (Se) 10 4 6 0.0027 0.001 U 0.014 S
Silver (All) 10 7 3 0.0053 '0.003 U 0.0129
Sodll8 (Ne) 10 0 10 95.9557 8.19 290
Itrontll8 (Ir) 10 2 8 0.6134 0.1 U 2.16
ThaU118 (n) 10 9 1 0.0009 0.001 U 0.0035 I
Tin (SrI) 10 8 2 1.9246 0.03 U 8.99
Ven8d118 (V) 10 6 4 0.0129 0.0054 I 0.0494 I
llnc (In) 10 2 8 0.0361 0.005 U 0.142
**"'een la flrat c~ted .t Individual Itetlona end then everelled; If reauit queilfler II U, at.tlatlc. ere eeieui.ted ual", 0.5 the reported r..uit.
115-.0 Standard, U-An8iyaed but not d8tected, '!"'r..ent bei. Detection iI.lt, laveiue l..a then caDL end 8re.ter then IDL, leE.tl_ted Velue
-------
GROUND-W A TER SAMPLING RESULTS
-------
.
Su.nery TBble for Ground-Veter Totel Metel Cont..lnante
Eest Trenchee Aree
Resultl reported In 81'1
IlUllber of IIlJItJer of IllIIbtr of Averege of IIlnl- of 111.1- of
An81)'C' Itesult. lion-Detect. Hltl All V.lue." All Value. Valun
Ah.l... (At) 15 4 11 2.1479 0.06 U 16.6
Ant 18IIn)' CSb) 15 -11 4 0.0242 0.0216 . 0.0451 811
Arlll'lic (AI) 15 " 4 0.0019 0.002 UN 0.006' I
Ilrh. (II) 15 .2 13 0.1810 0.0568 8 0.311
'eryH ". (Ie) 15 14 1 0.0009 0.001 U 0.0023 .
ceca". (Cd) 15 4 11 0.0021 0.0019 . 0.0054
Celch. (Ce) 15 0 15 99.8000 18.5 150
CII". (CI) 15 14 1 0.0920 0.002 IN 0.06 I
ChrCl8h. (Cr) 15 1 14 0.0268 0.01 U 0.05n
cobalt (Co) 15 11 4 0.0051 0.0045 . 0.0069 .
Copper (cu) 15 5 10 0.0111 0.003 U 0.0216
Iron (fe) 15 0 15 2.2602 0.0104 . 11.6
Leed (Pb) 15 6 9 0.0039 0.001 U 0.015
Llthh. (ll) 15 11 4 0.0198 0.0061 . 0.0081 .
Matnlll'" (Mil) 15 0 15 12.5100 4.81 . 21.4
M..,.....e (fin) 15 0 15 0.0491 0.0041 I 0.33)
Mercury (HI) 15 14 1 0.0001 0.0002 U 0.0002
1101 ybdena(lIo) 15 11 4 0.0054 0.003 U 0.0123 .
Nickel (III) 15 4 11 0.0202 0.0038 . 0.0438
Pot... h. (I( ) 15 0 15 2.1985 0.903 I 5.04
Selenl", (Se) 15 11 4 0.0013 0.001 U 0.002 I
SHyer (All) -15 1 8 0.0016 '0.0034 . . 0.0281
SodlUl (lie) 15 0 15 36.1663 9.41 - 103
Strontl", (Sr) 15 0 15 0.5025 0.268 0.991
Thin h. (Tn 15 15 0 0.0008 0.001 U
Tin (In) 15 11 4 0.0422 0.0215 II 0.0299 I
V8n8dI", (V) 15 1 8 0.0125 0.01 U 0.0505
Zinc (In) 15 1 14 0.0348 0.005 U 0.135
.....ean I. flrlt c~ted et Individual .tetlone end then averelled; If re.ult qualifier I. U, .tetl.tlc. .r. celculeted Ullna 0.5 the reported re.ult.
115-110 Standlrd, U-Anel)'zed but not detected, "-pr..ent below Detection 118ft, I-value Ie.. then ClOl end IIreeter then 10l, E-btl_ted Velue
-------
S_ry Tute for GrOlnf'''eter lnorlllnic. Cont_hwnta
MOInf Area
IIlJIIber of lluar of IIlJItJer of Averalle of "Inl- of "..1- of
Anatyte .uulta lIon-Detecta Hlta Alt Vatun" At t Vatues Vatun
pH (pi! unlta) 7 D 7 8.2000 7.4 9.9
Totat Suapended Sot Ida (111/1) 18 1 17 300.9167 4 800
IIltrate.llltrlte aa II (111/1) 57 1 56 4. tnt 0.02 U 44.8
Chtorlde (..,U 54 0 54 36.3114 5.85 275
Sulfate ("'1) 53 0 53 50:,596 3.29 " 261
. Totat Dillotved Sotlda (111/ I) .55 0 55 390.5088 163 590
HC03- (111/ t) 55 2 53 185.2782 0 360
,
. .
"""an la flrat COlllpUted at IndlvlMt atat"\1)~ and then averaged; If reautt qualifier II U, atatl.tlc. are catcutated ualng 0.5 tha reported re.ult.
115"0 Standard, U-AnatYled but not detected, . dint betow Detection 1I.lt, ."rulnt In .tri, E-Eatl_ted Vatue
-------
Sumn8ry Table for Ground-Vater Inorganic Cont..lnents
903 P8d Area
lIumer of IllIItJer of NUllber of Average of "Inl- of "ax 1- of
Analyte ...ul ta lion-Detects Hits All Values** All Values Values
pit (pit Wli ts) 1) 0 13 1.5500 5.9 8.2
Totsl SUspended Sol Ida (III/I) 29 3 26 161.8048 4U 3100
IIltrate-lIltrlte .s II (III/I) 84 2 82 2.9029 0.02 U 19.9
Chloride (III/I) 81 0 81 99.3144 2.8 1100
SuUat. (III/I) 83 0 83 88.5811 1.83 418
Totsl Dissolved Sol Ida (1181 I) 92 0 92 594.4146 21 J600
HcoJ' (1181 I) 84 0 84 222.6224 4 530
,
.-"'ean Is first COlpUted at Indlvl~I stations and then averagld; If result qualifier Is U, statistics ar. calculated using 0.5 the reported result.
115"0 Standard, UaAnalyzed but not detected, ...pr.sent belOtl Detection U.lt, ..pr..ent In'I"', E-Eatt..ted Valus
-------
APPENDIX C
APPLICABLE OR RELEVANT AND APPROPRIATE
REQUIREMENTS FOR GROUND-WATER CONTAMINANTS
SUBSURFACE IM/IRA/EA
-------
S~ry TabLe for GrCMld-Vater Inorganic Cont_lnanta
Ealt Trench.. Are.
lIumer of Nl.IIDer of Nllllber of Aver.ge of Mini... of "a.l- of
An8Lyte ...uLtl Non-Detect I Hltl AL I VaLues** AL I V.lu.. V.lu..
pit (pit unlta) 33 D 33 7.6971 7.2 9.3
Tot.1 Sulpended Sol Ida (l1li I) 80 6 14 511.5627 4U 8400
IIltr.te-lIltrlte .1 II (l1li I) 214 13 201 4.6516 0.02 U 42.0
ChLoride (88,1) 215 0 215 51.7011 3.94 947
SuLf.te (88/ L) 209 0 209 88.5496 9 160
Tot., Diliolved So'idl (l1li U 220 0 220 518.7535 137 2400
Hem- (l1li I) 207 0 207 245.0285 0 588
,
**-Mean II flrlt c~ted at IndividuaL Itatlona and then averlged; If reauLt ~'Ifler la U, ItatlltlCI .re caLcuLated ualng 0.5 the reported resuLt.
IIS"'o Standard, UaAn8IYled but not detected, ..-pr..ent be'ow Detection ".It, I"r....t In I''', E-Eatl_tad VaLue
-------
Table C-l (Continued)
Suggested Standards for
Treatment of OU2 Ground Water"
South Walnut
881 Hillside Creek
Potential OU2 IMIIRA Suggested IMIIRA Suggested
Ground-Water Constituent ARARITBc" ARARITBC' ARAR Referencec ARARffBC' ARARffBCC ARAR Referencec
I, I ,2- Trichloroethane. 5U j4g/t 0.6 p.g/t WQCC State-wide
Pish & Water
Ingestion Standard
4-methyl-2-pentanone IOU p.glt Background-DOE IOU p.g/t Background-DOE
policy to protect policy to protect
potential sources of potential sources of
drinking wate~ drinking wate~
2-hexanone IOU p.g/t Background-DOE IOU p.g/t Background-DOE
policy to protect policy to protect
potential sources of potential sources of
drinking wate,o drinking wate~
Styrene 100 p.g/t SDWA MCL 100 p.g/t SDW A MCL
Xylene 10,00() p.g/t SDWA MCL 10,000 p.g/t SDW A MCL
athyl Benzene 680 p.g/ t WQCC State-wide 680 p.g/ t WQCC State-wide
Water Supply Water Supply
Standard Standard
Benzene 1 p.g/t WQCC State-wide 1 p.g/t WQCC State-wide
Fish & Water Pish & Water
Ingestion Standard Ingestion Standard
Carbon Tetrachloride 5 p.gl t 5 p.g/t
Aluminum S mglt 0.2U mg/t
Antimony O.06U mglt 0.06U mg/ed
Arsenic 0.05 mglt 0.05 mg/t
-------
Table C-l
Suggested Standards for
Treatment of OU2 Ground .Wate"-
South Walnuf
881 Hillside Creek
Potential OU2 IM/IRA Suggested IM/IRA Suggested
Ground-Water Constituent ARAR/TBc" ARARITBC" ARAR Referencec ARARITBc" ARARITBCC ARAR Referenceo
Acetone 50 pg/I IOU pg/ld
Methylene Chloride 5U pg/ Id 5U pgttd
Tetrachloroethene 5U pg/ I lU pg/I
Toluene 2000 pgtt 1000 pg/I SDW A MCL
Trichloroethene 5 pg/ I 5 pg/I
Carbon Disulfide 5U pg/ Id SU pg/I RCRA Subpart F is
considered TOC
for 881 Hillside
facility
Chloroform 1 pg/I WQCC Surface Water I pg/I
Standard; State-Wide
Water and Fish
Ingestion
. Vinyl Chloride 2 pg/t SDW A MCL 2 pg/ t
1 ,I-Dichloroethane 5U pg/ td 5U pgltd
l,2-Dichloroetbane 5 pg/t 0.4 pg/I WQCC State-Wide
Fish & Water
Ingestion Standard
I, I-Dichloroethene 7 pglt 7 pg/I
Total l,2-Dichloroethene SU pgttd TOC for South Walnut 5U pg/ed
Creek facility.
I, 1 ,I-Trichloroethane 200 pg/I 200 pgtt SDWA MCL
-------
Table C-l (Continued)
Suggested Standards for
Treatment of OU2 Ground Wate"-
South Walnut
881 Hillside Creek
Potential OU2 IMIIRA Suggested IMIIRA Suggested
Ground-Water Constituent ARARITBC> ARARITBC" ARAR Reference. ARARITBC> ARARITBC" ARAR Reference.
Nickel 0.2 mglt O.04U mglt
Potassium 10 mglt Background-DOB 10 mglt Background-DOB
policy to protect policy to protect
potential sources of potential sources of
drinking wate.-c drinking wate.-c
Selenium 0.01 "mglt 0.01 mglt
Silver 0.05 mglt 0.05 mg/t ARAR for 881
Hillside
Sodium 18 mg/t Background-DOB 18 mg/t Background-DOB
policy to protect. policy to protect
potential sources of potential sources of
drinking wate.-c drinking wate.-c
Strontium 1.5 mg/t Background-DOB 1.5 mg/t Background-DOB
policy to protect policy to protect
. potential sources of potential sources of
drinking wate.-c drinking wate.-c
Thallium O.OlU mg/t
Vanadium 0.1 mglt 0.1 mg/td
Zinc "2.0 mglt 0.05 mglt WQCC Site-
Specific Aquatic
Life Surface Water
Standard.
Nitrite 1.0 mglt 1.0 mg/t
-------
Table C-l (Continued) .
Suggested Standards for
Treatment of OU2 Ground Water"
South Walnut
881 Hillside Creek
Potential OU2 IMIIRA Suggested IMIIRA Suggested
Ground-Water Constituent ARARffBc" ARARffBC' ARAR Referencec ARARffBc" ARARffBC' ARAR Referencec
Barium 1.0 mglt 1.0 mglt
Beryllium 0.1 mglt 0.1 mglt
Cadmium 0.01 mglt 0.OO5U mglt
Calcium 107 mglt Background-DOE 107 mglt Background-DOE
policy to protect policy to protect
potential sources of potential sources of
drinking water«' drinking water«'
ChroMium 0.05 mgl t 0.01 mglt
Cobalt 0.05 mgl td TBC for South Walnut 0.05 mgltd
Creek
Copper 0.2 mglt O.02SU mglt
Iron 0.3 mglt 0.3 mglt
Manganese 0.05 mglt 0.05 mglt
Lead 0.05 mglt 0.005U mg/t
Uthium 2.5 mglt , 2.5 mgI td
Magnesium 9 mglt Background-DOE 9 mglt Background-DOE
policy to protect policy to protect
potential sources of potential sources of
drinking water«' drinking waterC
Mercury. 0.002 mglt 0.OOO2U mglt
Molybdenum 0.1 mg/t 0.1 mgltd
-------
Table C-l (Continued)
Suggested Standards for
Treatment of OU2 Ground Wate~
South Walnut
881 Hillside Creek
Potential OU2 IMIIRA Suggested IMIIRA Suggested
Ground-Water Constituent ARARITBc" ARARITBCC ARAR Referenceo ARARffBc" ARARITBCC ARAR Referenceo
CS137 3.9 pCilt Background-DOE 3.9 pCilt Background-DOE
policy to protect policy to protect
potential sources of potential sources of
drinking waterP drinking waterP
Ra226 S pCil t WQCC State-wide S pCil t WQCC State-wide
Radionuclide Standard Radionuclide
Standard
Two existing Rocky Fiala Plant treatment systems are considered for treating ground water during the Subsurface 1Ml1RA. These include the South Walnut Creek Basin Surface Water IMlIRA
Treatment System and the 881 Hillside Oround-Water 1M/IRA Treatment System.
b Concentrationa are the Applicable or Relevant and Appropriate Requirement (ARAR) or To Be Conaidered (TBC) for the Indicated contaminant for the subject facility.
When an ARAR/TBC waa not identified for the IUbjec:t faoility. tho ARAR rationale for both facilitiea is oxamined and tho rationale produoing tho more stringent ARAR i. used to define the
suUOlted ARAR for the indicated contaminant. .
d Tho valuo i. TBC.
o Background is either the CRQL (organics) or tho uppor limit of tho 9S'Ai background tolerance interval (EO&O. 199Ob).
U Contract Laboratory Proaram (CLP) Contract Required Dotoction Limit (CRQL)
-------
Table C-l (Continued)
Suggested Standards for
Treatment of OU2 Ground Wate"-
South Walnut
881 Hillside Creek
Potential OU2 IM/IRA Suggested . IMIIRA Suggested
Ground-Water Constituent ARARITBC> ARARffBC' ARAR Referenceo ARARffBC> ARARIfBCO ARAR Referenceo
Nitrate 10.0 mg/t 10.0 mg/t
Chloride 250 mg/ t 150 mg/ t
Sulfate 250 mg/t 250 mg/ t
TOS 400 mgl t 400 mg/t
Fluoride 2000 ~gIt WQCC State-wide 2000 ~gIt WQCC State-wide
Pomestic Water Domestic Water
Supply Standard Supply Standard
Bicarbonate 202 mg/t Background-DOB 202 mg/ t Background-DOB
policy to protect policy to protect
potential sources of potential sources of
drinking wateZ# drinking wateZ#
Gross Alpha 15 pCilt 11 pCiI t
Gross Beta 50 pCilt 19 pCilt
Pu239.2AO 15 pCiIt 0.05 pCilt
H] 20,000 pCil t 500 pCilt
SI'",90 8 pCilt 8 pCilt
{ffocaJ 40 pCil t 10 pCilt
Am241 4 pCilt 0.05 pCilt
-------
TABLE C-2 (Continued)
ACTION-SPECIFIC ARARS FOR POTENTIAL CONSTITUENTS
IN W ASTFS FOR OFF-SITE DISPOSAL OR
ON-SITE PLACEMENT, OPERABLE UNIT NO.2
SUBSURFACE INTERIM REMEDIAL ACTION-
Comtituene»
Sodium
Strontium
Thallium
V8D8dium
:tinc
Carbon TetrachJoride
I, I Dicbloroetheoe
Tetracbloroetheoe
Acetone
2-Butanone
Benzene
Carbon Disulfide
Chloroform
Methylene Chloride
Toluene
Total Xyleoes
qAl\u-inp\fIll8l4\1bk..2.1pd
Potential
Waste Code
Treatment
Standarcf
Best Demonstrated Available
Technology (BDA T)
Basis for Standard
U211 5.6 mglkg Incineration or Fuel Substitution
FOOl 0.96 mglt Incineration
U078 33 mglkg Incineration or Fuel Substitution
U210 5.6 mglkg Incineration or Fuel Substitution
FOOl 0.05 mg/t Incineration
UOO2 160 mglkg Incineration or Fuel Substitution
Foo3 0.59 mg/t Incineration
UI59 36 mglkg Incineration
FOOS 0.75 mg/t Incineration
U019 36 mglkg Incineration
Foo5 3.7 mglkg Incineration
P022 locineration d
FOO5 4.81 mg/t Incineration
U044 5.6 mglkg locineration
U080 33 mglkg Incineration or Fuel Substitution
FOOl 0.96 mglt Incineration
FOO2 0.96 mglt Incineration
U220 28 mglkg locineration
FOOS 0.33 mg/t locineration
U239 28 mglkg Incineration
-------
TABLE C-2
ACTION-SPECIF1C ARARS FOR POTENTIAL CONSTITUENTS
IN WASTES FOR OFF-SITE DISPOSAL OR
ON-SITE PLACEMENT, OPERABLE UNIT NO.2
SUBSURFACE INTERIM REMEDIAL ACTION-
Best Demonstrated Available
Potential Treabnent Technology (BDAT)
Constituenti' Waste Code Standarcf ItAcic for Standard
Aluminum
Antimony
Arsenic DOO4 5.0 mglt Vitrification
Barium 0005 100 mg!t Chemical Precipitation
Beryllium POlS (as Mecals Recovery
-------
!ill!m
Treatment
Haurdous
Waste
Generation
Halardous
Waste
Transportation
Excavation!
Consol icmtlon
Treatment or
Storage In
Tanks
TABLE C-3
. ANALYSIS OF ACTION SPECIFIC ARARs
FOR REMEDIAL ACTIONS AT OPERABLE UNIT 2, SUBSURFACE IMlIRA
ReQUl rement
Halardous Waste nust be
treated to meet treatment
standard or using specific
t,.chno I OIly .
Standards applicable to
generators including waste
accumulatlon,recordkeeping,
container labelling,
manifesting, etc.
"aurdous lIaste shipment
off-site Is subject to DOT
regulations, manifesting,
recordkeeping, and dl scharge
cleanup, etc.
Consolidation In storage
pi les/storage tanks IIi I I
trluer storage requl re-
ments.
Placement on or In land
outside unit boundary or
ar8a of cont8l1llnstlon lIil I
trlggar land disposal
requirements .and
restrictions.
Tank. nust have sufficient
shell strength (thickness),
and, for closed tanks,
pressure controls, to assure
that they do not collapse or
rupture.
Waste must not be
incoqHlt Ible wi th the tank
material unless the tank 15
protected by a liner: .
other means.
-------
TABLE C-2 (Continued)
ACTION-SPECIFIC ARARS FOR POTENTIAL CONSTITUENTS
IN W ASTFS FOR OFF-SITE DISPOSAL OR
ON-SITE PLACEMENT, OPERABLE UNIT NO.2
SUBSURFACE INTERIM REMEDIAL ACTION-
1,2-Dicb1oroethane
Best Demonstrated Available
Potential Treatment Technology (BDAT)
Waste Code StandarcfC Basis for Standard
U228 5.6 mglkg Incineration Fuel Substitution
FOOl 0.91 mglt Incineration
FOO2 0.91 mglt Incineration
U043 33 mglkg . Incineration or Fuel Substitution
U076 7.2 mglkg Incineration
U077 7.2 mglkg Incineration
U079 33 mglkg Incineration
U226 5.6 mglkg Incineration or Fuel Substitution
FOOl 0.41 mglt Incineration
FOO2 0.41 mglt Incineration
U227 5.6 mglkg Incineration
Foo3 0.33 mglt Incineration
Constituenth
Tricb1oroethene
Vinyl Chloride
1,I-Dicb1oroethane
1,2-Dicb1oroethenee
1,1, I-Trichloroethane
1,1,2- Trichloroethane
4-methyl-2-pentanone
2-Hexanone
Styrene
Ethyl Benzene
Multi-Source Leachate'
Foo3
0.053 mglt
Incineration
F039
e
l.aDd DiIposal Reauic:UolII at 40 CFR Part 268. Treatment staDdarcis identified are based on the poIeatiaI bIzardoul waite c:ode(l) that c:ould be
uaigDed to the parameters of c:onc:em. .
RCRA does DOt iDc:lude radioauc:lidea al lllzardous wastel.
TreatmeDl ataDdarda arc preaeDted for DOD-wuteWaters.
StaDdard ia expnued u a apec:ific: tec:hnolOJ)'. .
StaDdard ia for the trana iaomer. .
u.s. EPA added liaIed lllzardoul waate c:ode F039 to 40 CFR 261.31 JUDe I, 1990 (55.f! 22520) aDd defined it u "Jeac:bate reaultiDB from the
U'e8tmeII1, atonp, or dilpOl8l of waatea c:luaified by more dwI one waite c:ode UDder 140 CFR Part 261) Subpart D. or from a mixture of waltel
c:luaified UDder Subparts C aDd D of Ihia part.. If thia waate c:ode ia deemed Ipplic:able to a waite. the wut.e must meet the treatmeIIt staDdardl
(aee 40 CFR Part 268 Tablea CCW and CCWE) prior to I8Dd diapoaal. . .
.
b
c:
d.
-------
TABLE C-3 (Continued)
ANALYSIS OF ACTION SPECIFIC ARARs
FOR REMEDIAL ACTIONS AT OPERABLE UNIT 2, SUBSURFACE IMIIRA
~
Reaul rement
Container
Storage
(On-Site)
Containers of
waste IIIISt be:
hazardous
In
good
. Maintained
condition;
. CCJq)IItible wi th hazardous
waste to be stored; and
. Closed during storage
(except to add or remove
waste).
Inspect container storage
areas weekly for
deterioration.
place containers on a
sloped, crack-free base, and
protect from contact with
accumllated I iquld. Provide
contalnnent system with a
capacity of 10X of the
volune of containers of free
liquids. Remove spl lied or
leaked weste In a timely
nIIMBr to prevent overflow
of the containment system.
Keep containers of Ignitable
or reactive Waste at least
50 feet from the facility's
property line.
Keep IncCJq)lltlble materials
separate. Separate
Incompatible materials
stored near each other by a
dike or other berrler.
At closure, remove all
hazardous waste and residues
from the containment system,
IInd decontaminate or remove
all contiliners, tlners.
-------
Act Ion
Treatment or
Storage In
Tlnks (cant.)
TABLE C-3 (Continued) .
AN~L YSIS OF ACTION SPECIFIC ARARs
FOR REMEDIAL ACTIONS AT OPERABLE UNIT 2, SUBSURFACE IMIIRA
Reauf rement
Prereaul s Ite
Citation W! Conments
40 CfR 264.193 RIA
40 CfR 264.194 RIA
Nell tanks or c~ts DJSt
be provided IIlth secondary
contal nment .
Tanks must be provided IIlth
controts to prevent
overflttlng, and sufficient
freeboard maintained In open
tanks to prevent overtopping
by lIave action or
precipitation.
Inspect the fottoillng:
overt II tlng control. control
equipment. monitoring data.
IIBste tevet (for uncovered
tanks), tank condition,
above-ground portions of
tanks, (to assess their
structurat Integrity) and
the area surrounding the
tank (to Identify signa of
telkage).
Repel r any corrosion, crack,
or teak.
40 CFR 264.195
RIA
40 CfR 264.196
RIA
At ctosure, remove atl
hazardous lIaste and
hazardous lIaste reslMs
from tanks, discharge
control equipment and
discharge confinement.
structures.
40 CfR 264.197
RIA
Store Ignitabte and reactive
lIaste so as to prevent the
IIlSte from Igniting or
reacting. Ignitable or
reactive lIastes In covered
tanks DJSt campI y III th
buffer zone requirements In
"Fl8IIIIIIIble and CodJustlble
Liquids Code," Tables 2-1
through 2-6 (Natlonat Fire
Protection Association, 1976
or 1981).
40 CFR 264.198
RIA
q4&\II.Inp\raW4\IbI~-3 .opeI
-------
!ill2D
Discharge
of "ater Into
Surface "Iter
Bodies
Discharge of
Treatment
System
Effluel1l
Emission of
Air Pollutants
TABLE C-3 (Continued)
ANALYSIS OF ACTION SPECIFIC ARARs
FOR REMEDIAL ACTIONS AT OPERABLE UNIT 2, SUBSURFACE IMIIRA
Reaulrement
NPDES permi t requl rements
Ipply to dlschlrglng water
Into surface water bodies.
All surface water discharges
. must be In compliance with
recently promulgated
Colorado Stream Discharge
Standards
.Use of best available
technology (BAT)
economically achievable Is
required to control toxic
Ind non-conventional
pollutants. Use of best
convent I onll po II utent
control technology (BCT) Is
required to control
conventlonll pollutants.
Technology-blsed
limitations may be
determined on s case-by-case
basis.
Use of emission control
technologies may be required
to prevent emission of
criteria pollutants
hlzsrdous Ilr pollutants,.
air toxles.
qA.llI-iroplrU\lJ4IIbI-c-3.apd
Prereaulslte
Must meet criteria for
regulated source, based on
volllM and/or type
Citation
AW
40 CFR 1ZZ and
40 CFR 1Z5
Applicable
5 CCR 100Z-8
Applicable
40 CFR 1ZZ.44
Applicable
5 CCR 1001-1
through 8
Applicable
Conments
The 1M/IRA Includes treatment of
extracted ground watar In the South
"alnut Creek treatment aystem prior
to discharge off site. The South
"alnut Creek treatment system I s a
part of lnother 1M/IRA. Effluent
ARARs Identified In Tabl. C-1 will be
IqIOsed for treltment of ground wlter
resulting from this 1M/IRA.
The 1M/IRA Includes treatment of
extracted ground water In the South
"Ilnut Creek treatment system prior
to discharge off site. The South
"alnut Creek treatment system Is a
part of lnother 1M/IRA. Effluent
ARARs Identified In Table C-' will be
IqIOsed for treatment of ground water
resulting from this 1M/IRA.
The 1M/IRA Includes treatment of
extracted ground water In the South
Wilnut Creek treatment system prior
to discharge off alte. The South
Walnut creek treatment system Is a
part of another 1M/IRA. Effluent
ARARs Identified In Tabl. c-' will be
IqIOsed for treatment of ground water
resulting from this 1M/IRA.
See Table C-6
-------
Aillm
Off-Site
Treatment,
Storalle or
Disposal
TABLE C-3 (Continued)
ANALYSIS OF ACTION SPECmC ARARs
FOR REMEDIAL ACTIONS AT OPERABLE UNIT 2, SUBSURFACE IMIIRA
Reauirement
Prereaulslte
Citation
Conments
M!B
In the case of any removal
or remedial action Involving
the transfer of any
huardous slbstence or
pollutant or conteminsnt
off-site, such huardous
slbstence or pollutant or
contemlnsnt shall only be
transferred to a facHI ty
which Is operating In
conpliance with section 3004
and 3005 of the Solid Waste
Disposal Act (or where
applicable, in conpllance
with the Toxic Substances
Control Act or other
applicable Federal law) and
all applicable State
requirements. Such'
slbstance or pollutant or
contaminant may be
transferred to a land
disposal facH ity only If It
can be determined ihat both
of the following
requirements are met:
The unit to which the
. .hazardous slbstance or
pollutant or contemlnsnt
Is transferred Is not
releasing Iny hazardous
wlste, or constituent
thereof, Into the ground
water or surface water or
soil.
SARA section
121(d)(2)(C)
Applicable
Applicable to the off-site treatment,
storalle, or disposil of wastes
lIenerated during on-site remedlll
actions.
. All such relelses from
other units It the
facility are being
controlled by I
corrective action program
approved by the
Administrator under
subtitle C of the Solid
Waste Disposal Act.
q4.\u-inp\ruW4\tbl..:-3.apd
-------
TABLE C-4
ANALYSIS OF LOCATION-SPECIFIC ARARs
FOR REMEDIAL ACTIONS AT OPERABLE UNIT NO.2, SUBSURFACE IMIIRA
ARAR
LOCATION CITATION REOUIREMENT :r,ma COMMENTS
Fault zones 40 CFR 264.18(a) RCRA regulations specify that R&A No faults displaced during
hazardous waste treatment, Holocene times exist within 200
storage, or disposal must not take feet of this site.
place within 200 feet of a
Holocene fault.
Flood plain 40 CFR 264.18(b) Any RCRA treatment, storage, or R&A This site is not located within a
disposal facility which lies within 100-year floodplain.
a lOO-year floodplain must be
designed, constructed and
operated to avoid washout.
Siting of Hazardous Waste Colorado Hazardous Waste Act, OUtlines siting criteria for R&A Although the proposed action
Disposal Sites Sections 25-15-101,203, 208, hazardous waste disposal sites. involves the treatment of water
302 rather than disposal of hazardous
wastes, these criteria are
considered in the siting of the
unit.
Siting of Wastewater Treatment Colorado Water Quality Control CDH Water Quality Control R&A Applicable to domestic
Facilities Act Section 25-8-202 and 25-8- Division must approve locations wastewater treatment facilities,
702 of wastewater treatment facilities. relevant and appropriate to the
proposed action.
Siting within an area where 36 CFR Part 65, National Planned actions must avoid Applicable Proposed activities will not
action may cause irreparable Historic Preservation Act threatening significant scientific, threaten significant scientific,
harm, loss, or destruction of prehistorical, historical, or historic, prehistoric, or
significant articles. archeological data. archeological artifacts.
-------
~
Emission of
Radlonucllde
Air Pollutants
TABLE C-3 (Continued)
. ANALYSIS OF ACTION SPECIFIC ARARs
FOR REMEDIAL ACTIONS AT OPERABLE UNIT 2, SUBSURFACE IMIIRA
Reaul rement
Prereaulslte
Citation
Monitoring and control DOE
facilitiel of r8dlonuclldes
A statement of envlronnent8l
Impact Is required.
Establishes provisions
applicable to end binding on
all federal agencies for
Implementing the procedural
requirements of the National
Envlronnental Policy Act
(NEPA). Includes procedures
for plaming (Part 1501),
preparing envl rorvnental
Impact statements (part
1502), decision-making (Part
1505), and compliance (Part
1507) .
40 CfR 61 Subpart H
NEPA Section
102(2)(c) and 40 CfR
1500-1508;
DOE 5440.1C
&glss-irlp\fU\8J4ltbl-<:-3.apcl
!!!M
tonments
Applicable
Applicable fencellne assessment of
dose-equivalent to public. See Table
C-6.
EPA, CDN, and DOE have reached
agreement on the applicability of
NEPA to RCRA/CERCLA actions.
RIA
-------
TABLE C-S
PROPOSED ARARsITBCs FOR CONSTITUENTS IN IMIIRA AIR EMISSIONS
Proposed
Constituent ARAR Proposed TBC Referen&:e Comments
Beryllium 10 g AQCC Regulation 8 Measured in any 24
bour period.
Beuzene 500 ppm AQCC Regulation 8 .
Mercury 2300g AQCC Regulation 8 Measured in any 24
bour period.
Lead 1.5 p.g/mJ AQCC Regulation 8 Average in anyone
month period.
Vinyl Chloride 10 ppm AQCC Regulation 8 .
Radionuclides 10 mrem/yr 40 CFR Part 61 Dose equivalence
Subpart H calcuialed for
fenceline exposure
for entire plant.
. No IOUreo type .ppliel 10 or cloaely .pproximalellho propoaed .ctiOMo Slalldard IIhown hu applied 10 . majority of die IOUrcelo
-------
TABLE C-4 (continued)
ANALYSIS OF LOCATION-SPECIFIC ARARs
FOR REMEDIAL ACTIONS AT OPERABLE UNIT NO.2, SUBSURFACE IMIIRA
LOCATION
CITATION
Siting on or near historic
property owned or controlled by
Federal agency.
36 CFR Part 800, National
Historic Preservation Act
Siting on critical habitat of
endangered or threatened
species.
50 CFR Parts 200, 402, 33 CFR
Parts 320-330
Wetlands
40 CFR Part 6, Appendix A
40 CFR Parts 230, 231
Area affecting stream or river.
40 CFR 6.302
REOUIREMENT
Action to preserve historic
properties; planning of action to
minimize harm to National
Historic Landmarks, included in
or eligible for the National
Register of Historic Places
Action to conserve endangered or
threatened species.
Actions must minimize the
destruction, loss, or degradation
of wetlands, as defmed by
Executive Order 11990,
Section 7.
Actions must not discharge
dredged or fill material into
wetlands without permit.
Action must protect fish or
wildlife.
ARAR
I.nEa
Applicable
Applicable
Applicable
Applicable
Applicable
COMMENTS
Proposed activities will Dot
disturb known or suspected
historic sites. Refer to Sections
4.3.3.3, 4.4.3.3, and 4.5.3.3.
Proposed activities will not
adversely affect endangered or
threatened species. Refer to
Sections 4.3.3.3, 4.4.3.3, and
4.5.3.3.
Proposed activities will not
adversely affect wetlands. Refer
to Sections 4.3.3.3, 4.4.3.3, and
4.5.3.3.
Proposed activities will not
adversely affect wetlands. Refer
to Sections 4.3.3.3, 4.4.3.3, and
4.5.3.3. .
Proposed action will be
protective of potentially affected
fish and wildlife resources.
Refer to Sections 4.3.3.3,
4.4.3.3, and 4.5.3.3.
I 1:he ARAR types designated reRect the Ipplication statUI of each requirement when preplntion of thil 1M/IRA beSln. In responle to thele requirementl. inveltigationl were perfonned Ind the reluJII Ire
indicated in the Commenll column which reflect the lick of any location-specific AllAR requirementl which would preclude the propoled action.
-------
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-------
APPENDIX D
GEOLOGIC LOGS
SUBSURFACE 1M/IRA
-------
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APPENDIX E
TRANSPORTATION ANALYSIS
With the exception of the no action alternative, each of the IMIIRA sites (903 Pad, Mound, East
Trenches) involves transportation activities during installation of the vapor extraction system and
during subsequent operation of the collection/treatment processes. It is anticipated that primary
shipments and vehicle movements during construction and normal operations will be by truck.
Both on-site and off-site shipment of materials will be required to support the action. Potential
transportation impacts to the human environment include exposure to the radioactive or
hazardous material being hauled, latent effects associated with vehicle pollution, and traumatic
injuries and fatalities from accidents.
An estimate of emission rates for operation of a typical truck are presented below:
Pollutant
Carbon Monoxide
Truck Emission Rate.
Emission Rate (i/km)
Hydrocarbons
Nitrogen Oxide
Sulfur Oxide
Particulatesb
22.0
3.3
13.0
5.1
0.8
. From Rao et. al., 1982
. Does Dot include Cugitive dust
Estimates of health effects per kilometer for truck transportation are (Rao et. al., 1982):
Source
Pollutants
LCFs.
1x 10.7
Injuries
Fatalities
Accidents
5.1xHt7
3.Ox1o-&
. Latent .:anc:cr Catalities
SUBSURFACE INTEIUM REMEDIAL ACTION Pu.N
ROCKY PlATS PUNT. GOLDEN. COLORADO
ceAa\u-inp\fiaaJ4\appck.scp
FINAL
SqlU:mbcr 1992
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APPENDIX E
TRANSPORTATION ANALYSIS FORM
SUBSURFACE IMIIRA
-------
Vapor extraction system installation transportation activities primarily involve the movement
of a limited amount of equipment for drilling system setup and deliveries of vapor extraction
system components. Direct impacts would include short-term effects common to all drilling
projects, including dust generation, pollution, noise, and increased traffic levels. These
impacts would be insignificant, considering the scope of this proposed action.
. .
Approximately 2 cubic yards of drilling cuttings and fluids may be classified as hazardous
mixed waste and require off-site disposal. .The soil contamination data currently available
for radionuclides, VOCS, and metals are presented in Appendix A These data suggest that
the levels of all compounds detected in the soil remain well below the soil thresholds
. calculated in the Plan for Prevention of Contaminant Dispersion (PPCD) for drilling
activities and vehicular traffic. For example, plutonium239/240 levels at the 903 Pad were
found to range from 0.020 picocuries per gram (pCi/g) to 500 pCi/g. Thus, the highest level
recorded is one order' of magnitude below the soil threshold for vehicular traffic
recommended in the PPCD and more than two orders of magnitude below the soil threshold
of 68,200 pCi/ g for well drilling. A similar situation exists for com?ounds detected at the
Mound and East Trenches areas. Therefore, on the basis of existing data, neither well
drilling nor vehicular traffic associated with the 1M/IRA are expected to present significant
health risks due to chemical exposure.
It is possible that ongoing soil analysis at OU2 associated with the RI will discover pockets
of higher chemical contamination. In this event, the data from soil analyses will be
compared to the PPCD soil thresholds. If soil thresholds are exceeded or if real time air
monitoring suggests a potential problem, then mitigation measures including unpaved road-
wetting applications will be implemented.
Possible human health impacts resulting from installation transportation related emissions
and accidents would also be very small, given the tabulated emissions and health effects
estimates presented at the beginning of this Appendix.
Routine operations will require the delivery of process treatment components (HEP A filters,
desiccants; GAC), daily tank truck transfer of untreated and partially treated water,
. occasional vehicle travel for inspection and maintenance of the vapor extraction system wells
SUBSURFACE iNTERIM REMEDIAL ACI10N PLAN
ROCKY PLATS PLANT, OOLDEN. COLORADO
Cl4I\u-inplfmal4~.1Cp
FINAL
SepIaDbcr 1992
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The above accident impacts are average values over multiple population zones (urban,
suburban, rural) and are derived from Department of Transportation (DOT) nationwide
statistics. For the proposed 1M/IRA, it is anticipated that the majority of material receipts
for construction and routine operations will originate within the Denver Metropolitan area,
within a 50-mile (80 kIn) radius of the plant site. To place transportation impacts to the
- general public in perspective, given the health effects tabulated above, approximately 60,000
round-trip truck shipments (with a I-way distance of 50 miles) would be required to cause
1 additional latent cancer fatality. Approximately 210,000 truck shipments would be
required to result in 1 additional traumatic fatality.
Transportation of radioactive and hazardous materials at the Rocky Flats Plant must comply
with the regulations and guidelines established by the On-Site Transportation Manual
. (EG&G, 1991) for packaging, marking, labeling, handling, transporting, and storing
materials. The On-Site Transportation Manual is based on current rules and regulations
(CFR Titles 10,40,49), applicable DOE orders, and ALARA exposure principals. Vehicle
and driver qualifications are maintained in accordance with Federal Motor Carrier Safety
Regulations. Emergency response guidance for transportation-related accidental spills or
container failures is provided in Section 17 of the On-Site Transportation Manual. More
detailed notification, response, and recovery action procedures are specified in the Rocky
Flats Emergency Plan and the Hazardous Materials Response Team Manual. A HAZ-MA T
team would respond to an emergency condition and would identify material hazard classes
and make appropriate notifications; isolate and establish restricted zones; and take any
necessary actions to contain, control, and prevent the spread of hazardous materials.
An evaluation of transportation impacts for each 1M/IRA site is presented below:
1M/IRA 903 Pad
1M/IRA 903 Pad activities involve transportation during vapor extraction system installation
and routine operations.
SUBSURFACE INTEltIM ItEMl!DIAL ACTION PL.AN
ROC1CY PLATS PLUIT. OOLDEN. COLORADO
18A&\aHnp\fiaal4\1ppk.ocp
PINAL
ScpCcmber 1992
-------
Routine operations will require the delivery of process treatment components (HEP A filters,
desiccants, GAC) and the possible off-site disposal of materials that will likely be classified
as hazardous mixed waste. Currently, dewatering activities with the subsequent requirement
for tank trucks and sludge disposal is not anticipated at Mound. Annual hazardous mixed
waste disposal estimates include 2 cubic yards of' drilling fluids and cuttings. Off-site
transportation impacts associated with the hazardous/radioactive nature of the material
would be very low as determined in DOE (1991b). Relatively low concentrations of
contaminants, disposal site waste acceptance criteria, and compliance with DOT packaging
and transport requirements all contribute to very low health effects. Given the small
number of off-site shipments and the 'tabulated emissions and health estimates presented
in this Appendix, health impacts resulting from off-site transportation emissions and
accidents are antici~ated to be very small.
Operational activities will also include periodic inspection and maintenance of the vapor
extraction system pumps and piping system. Vehicle miles traveled to support these
operations will be very small and will result in negligible impacts.
1M/IRA East Trenches
As with 1M/IRA 903 Pad and Mound, East Trenches involves transportation activities
, during installation and routine operations.
Installation transportation activities would be very similar to the 903 Pad and involve the
movement of a limited amount of equipment for drilling, vapor extraction system setup,
deliveries of vapor extraction system materials, and potential off-site disposal of drilling
fluids and cuttings. As with the 903 Pad and Mound installation, transportation impacts
would be very small. Drilling cuttings and fluids (2 cubic yards) will possibly be classified
as hazardous mixed waste and require off-site disposal. Associated impacts would be very
low, as determined from DOE (1991b).
Routine operations will require the delivery of process treatment chemicals (GAC), tank
truck transfer of collected surface water, periodic vehicle travel for inspection and
SUBSURFACE INTERIM REMEDIAL ACT10N PLAN
ROCKY FLATS PLANT. GOLDEN. COLORADO
ea.talu-inp\fIllll4\8ppck.1Cp
FINAL
SqIIaaber 1992
-------
and pumps, and off-site disposal of materials that will likely be classified as hazardous mixed
waste. Based on dewatering system design flow rates of one gpm, 365 water transfer trips
per year may be required initially between the 903 Pad vapor extraction system and the
South Walnut Creek treatment system. An annual total round trip travel distance of
approximately 190 miles would be required to support transfer operations. If the pilot vapor
extraction system at the 903 Pad is successful, the water may be hard piped to the treatment
system thus eliminating this travel. All travel would be confined to the plant site on paved
roads. Occasional travel to the collection system areaS will also be required for periodic
inspection and maintenance activities. Annual hazardous mixed waste disposal estimates
include 2 cubic yards of drilling fluids and cuttings, and 4 cubic yards of solidified process
sludge. Off-site transportation impacts associated with the hazardous/radioactive nature o(
the material would be very low, as evaluated in DOE (1991b). Relatively low
concentrations of contaminants, disposal site waste acceptance criteria, and compliance with
DOT packaging and transport requirements all contribute to a very low potential for health
effects from normal transport and accidents. Health impacts resulting from both on-site and
off-site transportation emissions and accidents would be small, considering the relatively low
number of total miles traveled and the transportation health effects estimates presented at
the beginning .of this Appendix.
1M/IRA Mound
IMjIRA Mound activities involve transportation during the vapor extraction system
. installation phase as well as during subsequent routine operations.
During vapor extraction system installation, transportation would include the movem~nt of
a limited amount of equipment for drilling, system setup, and deliveries of vapor extraction
system components. As with the 903 Pad, direct impacts w01,1ld include those short-term
effects common to all drilling projects, including dust generation, pollution, noise, and
increased traffic levels. From the scope of the alternatives, none of these impacts would be
expected to be significant. Possible personnel impacts resulting from transportation-related
emissions and accidents would be very small, based on the tabulated emissions and health
effects estimates presented at the beginning of the Appendix.
SUBSURFACE IN'1"EIUM REMEDIAL ACI'ION PIAN
ROCKY PLATS PLA!n'. OOLDEN. COLORADO
..tcIlHnp\fiaaM\Ippd..uep
FINAL
SqICaDber 1992
-------
maintenance of the vapor extraction system, and off-site disposal of drilling cuttings and
sludge. Approximately 365 tank truck trips a year (150 round trip miles) will be required
to transport collected subsurface water from the transfer station to the South Walnut Creek
treatment plant. Annual off-site disposal requirements would primarily require the shipment
of dewatering sludge (4 cubic yards). In general, routine transportation activities will be less
than those for the 903 Pad and more than Mound and will have very small impacts.
SUBSUltPACB IN'I1!RIM REMEDIAL ACTION PLAN
ROCKY PU\TS PLANI'. OOLDEN. COLORADO
qa,\u-inplfia8l4\8ppck.oep
FINAL
Scpcc:mber 1992
------- |