haley & aldrich...rocketdyne propulsion & power 6633 canoga avenue, d/393, t/487 canoga...

HALEY &ALDRICH

UNDERGROUND ENGINEERING & ENVIRONMENTAL SOLUTION;

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UNDERGROUNDENGINEER IN G &

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28 November 2000File No. 26472-209

Mr. Paul Chang, R .G .The Boeing CompanyRocketdyne Propulsion & Power6633 Canoga Avenue, D/393, T/487Canoga Park, CA 91303

Haley & Aldrich, Inc.6200 East 14th StreetSuite A200Tucson, AZ 85711Tel: 520. 326.1898Fax : 520 .747.3491www.HaleyAldrich.com

Subject: Third Quarter 2000 Groundwater Monitoring Report, Santa Susana FieldLaboratory, Ventura County, Californi a

Dear Mr . Chang :

Enclosed is our quarterly report, Groundwater Monitoring Quarterly Report, Third Quarter2000, July through September 2000, Santa Susana Field Laboratory Ventura County,California . This report summarizes groundwater monitoring activities, including water levelmeasurement and groundwater sampling conducted during the third quarter . We appreciatethe opportunity to work with The Boeing Company on this project . Please advise if you haveany questions or wish further discussion of this report .

Sincerely yours ,HALEY & ALDRICH, INC .

Lawrence P . Smith, R .G .Senior Vice PresidentCalifornia Registered Geologist No . 3944

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GROUNDWATER MONITORING QUARTELY REPORTTHIRD QUARTER 2000 , JULY THROUGH SEPTEMBER 2000SANTA SUSANA FIELD LABORATORYVENTURA COUNTY, CALIFORNI A

Prepared By :

I Haley & Aldrich, Inc .Tucson , Arizona

P

E

Prepared For :

The Boeing CompanyCanoga Park , California

File No. 26472/73/M419November 28, 2000

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TABLE OF CONTENTS

LIST OF TABLE S

LIST OF FIGURES

I. INTRODUCTION

1 .01 Scope of the Report1 .02 Facility Description and History1 .03 Description of Groundwater System

A . Hydrogeologic Unit s1 . Shallow Zone2 . Chatsworth Formation

II. OPERATION OF GROUNDWATER RE MEDIATION FACILITIE S

III. GROUNDWATER LEVEL CHANGES

3 .01 Shallow Zone3 .02 Chatsworth Formation

IV. GROUNDWATER QUALITY

4.01 Shallow ZoneA. Results of Organic AnalysesB. Results of Fuel Hydrocarbon Analyses

4.02 Chatsworth FormationA. Results of Organic AnalysesB. Results of Fuel Hydrocarbon AnalysesC . Results of Trace Metal Analyse sD. Results of Radiological Analyses

4.03 Perchlorate Result s4.04 Off-site Private Wells and Springs

V. POST-CLOSURE PERMIT S

5 .01 Background Wells5 .02 Evaluation Monitoring5 .03 Detection Monitoring

A . Detection Monitoring WellsB . Perimeter Well s

5 .04 Results of Third Quarter Verification Sampling5 .05 Scheduled Fourth Quarter Sampling

A . Verification Sampling

VI. REFERENCES

TABLESFIGURES

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TABLE OF CONTENTS ( continued)

LIST OF TABLES

Table No. Title

1 Well Construction Data

2 2000 Annual Monitoring Schedul e

3 Summary of Groundwater Remediation Facilities, Third Quarter 200 0

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4 Summary of Water Quality Results for Permitted Groundwater RemediationFacilities, Third Quarter 2000

5 Summary of Water Level Data, Third Quarter 200 0

6 Summary of Results for EPA Priority Volatile Organic Compounds in ShallowZone Wells and the ECL French-Drain, Third Quarter 2000

7 Summary of Results for EPA Priority Volatile Organic Compounds inChatsworth Formation Wells, Third Quarter 2000

8 Summary of Results for Gasoline Range Organics, Third Quarter 200 0

9 Results of Analyses for Trace Metal Constituents and Cyanide, Third Quarter2000

10 Results of Analyses for Gross Alpha and Beta , and Tritium Activities inGroundwater Samples, Third Quarter 200 0

11 Results of Analyses for Gamma-Emitting Radionuclides, Third Quarter 2000

12 Summary of Perchlorate Results, Third Quarter 200 0

13 Results of Analyses for Background Wells, Third Quarter 200 0

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TABLE OF CONTENTS (continued )

LIST OF FIGURES

Figure No . Title

1 Locations of Wells and Springs and Groundwater Reclamation SystemComponents

2 Water Level Elevation Contour Map - August 2000, Chatsworth FormationGroundwater Syste m

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I . INTRODUCTION

This report has been prepared to summarize the results of groundwater monitoring , includinggroundwater remediation activities , conducted during the period of July through September

2000 at The Boeing Company , Rocketdyne Propulsion & Power Santa Susana Field

Laboratory (SSFL) Facility located in Ventura County , California . Monitoring activitiesconducted during this period included the measurement of static water levels ; collection andlaboratory analysis of groundwater samples from Shallow Zone wells and Chatsworth

Formation wells ; measurement of groundwater extraction /treatment system pumping ratesand volumes ; and the collection and laboratory analysis of water samples collected from

treatment system influent and effluent .

1.01 Scope of the Report

This quarterly report includes the following :

1 . Status of the Groundwater Reclamation System operations based upon data provided

by EnviroSolve Corporation, Inc ., including a tabulated summary of well pumpage

volumes and a tabulated summary of the results of laboratory analyses for water

samples collected from permitted treatment system influent and effluent ;

2. A tabulated summary of water level measurements obtained during the reporting

period ;

3. A tabulated summary of the results of laboratory analyses of water samples collected

during the reporting period ; and

4. A summary of water level elevations and water quality characteristics and trends .

1 .02 Facility Description and History

The SSFL Facility is located in the Simi Hills of eastern Ventura County, west of Chatsworth,

California . The Facility occupies approximately 2,850 acres . There is approximately 700

feet of topographic relief over the entire Facility .

The SSFL Facility is currently operated by Rocketdyne Propulsion & Power, a division of

The Boeing Company . The Facility has been subdivided into administrative areas : Area I,

Area II, Area III, Area IV and undeveloped land (Figure 1) . Areas I and III and

undeveloped land are owned and operated by The Boeing Company, Rocketdyne Propulsion

& Power (Rocketdyne) . Area II is owned by the U .S . National Aeronautics and Space

Administration (NASA) and operated by Rocketdyne . The facilities and equipment in Area

IV belong to the U .S . Department of Energy (DOE) . They reside on land DOE formerly

leased from The Boeing Company, the current owner and operator .

HALEY &ALDRICH

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The Facility has been operated as a rocket engine testing facility since 1948 . Seven major

rocket engine test areas, designated Bowl, Canyon, STL-IV, Alfa, Bravo, Coca, and Delta,

were in operation simultaneously in the late 1950's and early 1960's ( Figure 1). Some of

these test areas were phased out of operation in the late 1960's and 1970's . Experimental,

small-scale rocket engine testing has taken place at the area now designated APTF ( Figure 1) .The Alfa, Bravo, STL-IV and APTF test areas are currently in operation .

Rocketdyne Propulsion & Power and its predecessor organizations have conducted programs

for the U.S . Department of Energy (formerly the Atomic Energy Commission and Energy

Research and Development Agency) since the early 1950's . The programs have included

engineering, research and development, and manufacturing functions primarily concerned

with nuclear reactor development and applications . During the period 1950 through 1973,

the Rocketdyne division of The Boeing Company and its predecessor organizations conducted

research and development on many nuclear reactor subsystems . In 1966, the Energy

Technology Engineering Center (ETEC) was chartered to provide engineering development

and testing of duplicative components for the Liquid Metal Fast Breeder Reactor Program

(DOE, 1989) . Currently in Area IV, The Boeing Company is primarily conducting

environmental restoration programs for DOE .

1 .03 Description of Groundwater Syste m

Groundwater conditions at the Facility are evaluated based on data compiled from a total of

247 wells . These wells include 218 monitor wells constructed at or adjacent to the Facility,

13 Facility water supply wells and 16 private off-site wells and springs (Table 1) . The

monitor wells include 92 Shallow Zone monitor wells and 126 Chatsworth Formation monitor

wells. Figure 1 presents the locations of wells and springs .

The first wells constructed at the Facility were the deep water supply (WS) wells, drilled

during the early to mid-1950's . These initial wells (WS-1 through WS-SP) were constructed

to satisfy the Facility industrial water demands. Though 17 water supply wells were

constructed, four of the wells (WS-5, WS-6, WS-12, and WS-13) were the principal high-

yield wells . The groundwater beneath the SSFL Facility is not used as a source of potable

water .

From 1984 through 1992, 147 monitor wells were constructed at the Facility to evaluate

groundwater conditions . During 1993 and 1994, 55 monitor wells were completed at or

adjacent to the Facility as part of the site characterization . These included deeper monitor

wells at 12 cluster well sites . At these sites, multiple wells were completed to various depths

to vertically evaluate groundwater quality and hydrostatic pressure . One monitor well was

constructed in 1995 as part of the work overseen by the Ventura County Environmental

Health Department at a former underground storage tank location (A .E . Schmidt

Environmental, Inc., 1995) . During 1997, 11 monitor wells were added, including fou rHALEY &ALDRICH

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additional wells to assess the vertical variations in groundwater quality and hydrostatic

pressure (cluster wells) . Two "B" level wells were added to the monitoring network in 1998

(RD-38B and RD-46B). "B" level well RD-35B and "A" level well RD-74 were constructed

during the first quarter of 1999 . The groundwater monitoring schedule for calendar year

2000 is presented in Table 2 .

A. Hydrogeologic Units

There are two groundwater systems at the Facility : 1) a shallow, laterally discontinuous

groundwater system in the surficial alluvium, the underlying zones of weathered sandstone

and siltstone, and isolated shallow fracture systems (Shallow Zone) ; and 2) a deeper regional

groundwater system in the fractured Chatsworth Formation . In some parts of the Facility, the

two systems appear to be hydraulically connected .

1 . Shallow Zone

The Shallow Zone is composed primarily of unconsolidated sand, silt, and clay which

has been eroded from the surrounding Chatsworth and Santa Susana Formations .

Also included in the Shallow Zone hydrogeologic unit is the underlying shallow,

weathered portion of the Chatsworth Formation .

The Shallow Zone is laterally discontinuous in the vicinity of the Facility . It may be

saturated along ephemeral drainages and in the southern part of Burro Flats . Some

portions of the Shallow Zone are saturated only during and immediately following the

wet season .

Water level data from the Shallow Zone wells indicate that the Shallow Zone water

table is, in general, a subdued expression of the topographic surface . Water in the

Shallow Zone moves primarily laterally, but downward flow into the underlying

fractured zones of the Chatsworth Formation also occurs .

2. Chatsworth Formatio n

The principal water bearing system at the Facility is the fractured Chatsworth

Formation that is composed of poorly to well-cemented, massive sandstone with

interbeds of siltstone and claystone . The fracture systems within the Chatsworth

Formation are associated with bedding planes, jointing, and faulting .

HAEEY &AWRICH

The matrix hydraulic conductivity of sandstone samples from the Chatsworth

Formation ranged between 10 4 and 10-6 cm/sec, with a geometric mean of about 7 x

10'6 cm/sec (Montgomery Watson, 2000) . The matrix hydraulic conductivity of the

shale beds ranged between 10-9 and 10" cm/sec .

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The hydraulic conductivity of the Chatsworth Formation is a function of the matrix

and the fracture network . The bulk hydraulic conductivities of the rock units at SSFL

derived from pumping tests are summarized below .

Formation "# WellsTested

K (cm/sec) Storage Coefficient, Si

Sandstone 1 41 3 .4 x 10'5 0.00027 - 0 .0042Sandstone 2 38 4 .2 x 10 6 0.00025 - 0 .0053Lower Chatsworth 8 2 .7 x 10-5 N AAll Wells 87 1 .3 x 10 5 0.00025 - 0 .005 3

U Refer to Figure 2 for formation locations

NA = Not applicable

The fracture network imparts about an order of magnitude increase in hydraulic

conductivity to bedrock, on average, over that of the matrix . Movement of

groundwater in the Chatsworth Formation beneath the SSFL Facility is primarily

along fractures, and within the higher hydraulic conductivity sandstone beds .

HALEY carALDRICH

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II. OPERATION OF GROUNDWATER REMEDIATION FACILITIE S

HALEY &AWRICH

Six permitted groundwater remediation facilities (GRFs) and two interim GRFs were

operational at the Facility during the reporting period . The interim GRF located near the

Former Sodium Disposal Facility (FSDF) was taken out of service in mid-May to

accommodate construction activities in the area, which remain ongoing . The locations of all

the facilities are shown on Figure 1 . The operational data for these systems during the

reporting period can be found in Tables 3 and 4 . The six permitted and interim systems are

located in Areas I, II and III . Monthly pumpage volumes for the permitted systems are listed

by well in Table 3 . The interim GRF systems are located in Area IV (Figure 1) . One

interim GRF, located in the vicinity of Building 59 (B/459), is operated as part of a

construction dewatering effort .

During the third quarter of 2000, all operational GRFs, including interim GRFs in Area IV,

were monitored monthly by EnviroSolve Corporation, Inc . Data presented in this report

regarding the GRF monitoring program were obtained from the EnviroSolve monthly reports

(EnviroSolve Corp., 2000a, 2000b, 2000c, 2000d) .

The total volume of groundwater extracted and treated at permitted and interim GRFs during

the reporting period was approximately 19 .2 million gallons . Total quarterly pumpage from

the permitted systems was 18 .9 million gallons (Table 3) . Total pumpage from the interim

GRFs during the reporting period was 276,100 gallons (Table 3) .

No volatile organic compounds (VOCs) were detected in the final effluent samples collected

from the GRFs during the reporting period . Analytical results for trichioroethylene (TCE),cis- l ,2-dichloroethylene (cis- 1 ,2-DCE), and trans - l,2-dichloroethylene (trans-l,2-DCE) in the

influent and effluent of the permitted operational systems are presented in Table 4 . OtherVOCs detected in influent samples but not listed in Table 4 include vinyl chloride , detected inthe Alfa system influent , and 1 , 1-dichloroethene (1,1-DCE), chloroform and carbontetrachloride , detected at STL-IV . None of these compounds were detected in effluentsamples during the reporting period . Dibromochloromethane was detected in a primaryeffluent sample collected from the Area I Road ASU in July but was not detected in thesecondary effluent . It was likely present as a by-product of disinfection . Also included inTable 4 are estimated values for total VOCs removed at each operational treatment system

during the reporting period . These values have been obtained from the EnviroSolve monthlyreports .

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III. GROUNDWATER LEVEL CHANGE S

Water level measurements were obtained from all Shallow Zone and Chatsworth Formation

monitor wells and extraction wells during the reporting period of July through September

2000 except for six wells near the FSDF that were inaccessible during the quarter (Table 5) .

Water level elevation data derived from these measurements were used to evaluate water level

changes and directions of groundwater flow .

3.01 Shallow Zon e

Water level data were collected from all but one Shallow Zone well during the quarterly

monitoring period. Static water level elevations for Shallow Zone wells have been tabulated

and are presented in Table 5 . Static depth to water in Shallow Zone monitor wells in August

2000, measured from the tops of well casing, ranged from 4 .1 feet in well RS-7 to 29 .25 feet

at well HAR-3 (Table 5) . Well RS-7 is located southeast of the Perimeter Pond in Area I .

Well HAR-3 is located near the APTF Area in Area I (Figure 1 ) . All wells experienced

water level declines .

3.02 Chatsworth Formation

Water level data were collected from all but five Chatsworth Formation wells during the

quarterly monitoring period. Five wells were inaccessible due to remediation activities at

FSDF. Water level elevations measured in August 2000 for Chatsworth Formation wells are

summarized in Table 5 . Static depths to water in Chatsworth Formation monitor wells

measured in August 2000 ranged from above land surface (artesian) at wells RD-59B, RD-

59C, RD-68A and RD-68B to 569 .43 feet at well RD-47 (Table 5) . From the second to the

third quarters of 2000, 19 Chatsworth Formation monitor wells exhibited water level

increases, while 95 declined .

HALEY &ALDRICH

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IV. GROUNDWATER QUALIT Y

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Groundwater sampling for the third quarter of 2000 was conducted during August 2000 .Sampling activities and laboratory analyses were conducted following the protocol described

in the Sampling and Analysis Plans for Area II (GWRC, 1995a ) and for Areas I and III(GWRC, 1995b), approved by the California Department of Toxic Substances Control

(California DTSC , 1996 ) . Groundwater samples were collected and analyzed from Shallow

Zone wells , Chatsworth Formation wells, and private off-site wells per the quarterly schedule(Table 2 ) . Deviations from the scheduled sampling event were as follows :

O Wells ES-2, HAR-19, OS-12, OS-13, OS-25, RD-36A, RD-40, RD-51A, RD-52A,

RS-1, RS-2, RS-l0, RS-16, RS-18, RS-21, RS-23, RS-24, RS-25, RS-27, and SH-4

were not sampled due to inadequate water volume for sampling purposes .

❑ Wells RD-3, RD-21, RD-51B, and RD-74 were not sampled due to equipment

problems or malfunction . Well repairs have been scheduled for the fourth

quarter of this year .

❑ Wells RD-23, RD-54A, RD-54B, RD-54C, and RS-54 were inaccessible and couldnot be sampled .

❑ The sample container for the RD-34B tritium analysis was broken during shipment .

❑ Well RD-34A was not sampled following standard protocol . The well was purged

dry on August 23`' . Although the static water level had not recovered by August 29th,

VOC and tritium samples were collected by bailer . Insufficient water in well RD-

34A prevented the collection of the other scheduled samples, and necessitated

deviation from standard sampling protocol .

Analytical services were provided by E.S . Babcock and Sons of Riverside , California(primary laboratory ) ; Alpha Analytical of Sparks , Nevada (secondary laboratory) ; andThermo Retec of Richmond, California ( primary laboratory for radiological parameters) .

Each of these laboratories has been certified by the State of California .

The most prevalent organic constituents detected during this quarterly sampling were TCE

and cis- 1,2-DCE . Concentrations of TCE and cis- 1,2-DCE reported for each well sampled

are presented in Tables 6 and 7 . Comprehensive tabulated water quality data an d

hydrographs of water quality and water level data for most Chatsworth Formation wells and

select Shallow Zone wells are presented annually (GWRC, 2000a) .

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4 .01 Shallow Zone

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Five Shallow Zone wells were sampled in the third quarter 2000 for VOCs and three were

sampled for fuel hydrocarbons .

A . Results of Organic Analyses

TCE was the predominant VOC detected in Shallow Zone wells . TCE was detected above

the practical quantitation limit (PQL) in samples collected from two of the five wells sampled

for VOCs (Tables 6 and 8) . Cis-1,2-DCE was detected above the PQL in samples collected

from three Shallow Zone wells . All results of organic analyses on Shallow Zone groundwater

samples were within historic ranges .

B. Results of Fuel Hydrocarbon Analyses

Three Shallow Zone wells (RS-30, RS-31, and RS-32) were sampled and analyzed for fuel

hydrocarbons (Table 8) . Gasoline range organics were not detected above the detection limit

of 30 micrograms per liter (µg/1) .

4 .02 Chatsworth Formation

Groundwater samples were collected from 62 Chatsworth Formation wells during the third

quarter 2000 for VOC analyses . Seven Chatsworth Formation wells were sampled for fuel

hydrocarbons, four wells were sampled for trace metals, 14 wells were sampled fo r

radiological parameters, and three wells were sampled for perchlorate . Perchlorate results

are discussed in Section 4 .03 . Private off-site wells are discussed in Section 4 .04.

A. Results of Organic Analyses

VOCs were not detected above the PQL in 44 of the 62 Chatsworth Formation wells sampled .

VOCs detected above the PQLs in Chatsworth Formation wells during the third quarter of

2000 included acetone, carbon disulfide, 1,1-dichloroethane (1,1-DCA), 1,1-dichloroethylene

(1,1-DCE), cis- and trans-1,2-DCE, tetrachloroethylene, TCE, and vinyl chloride (Tables 7and 8 ) . TCE was detected above the PQL in 14 wells with concentrations ranging up to 3,400

µg/l in the sample collected from well RD-46A (Table 7) .

VOC results were within historic ranges except for a few suspect results (GWRC, 2000a) .

Prior to this quarter, acetone had not been detected in groundwater samples from well RD-46B . Duplicate samples from RD-46B contained acetone at concentrations ranging up to 25

µg/l; however, the trip blank accompanying the samples contained a trace of acetone at 5 . 9

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µg/1 . The PQL for acetone in these samples was 10 µg/l . A low concentration of carbon

disulfide was reported in a sample from detection monitoring well RD-61 which historically

has been free of VOCs (Tables 7 and 8 ) . This result is discussed in Section V .

Benzene and acetone reported below the PQLs in the RD-34A sample were not consistent

with historic samples from this well . The presence of these constituents may be attributed to

the deviation from standard sampling procedures used at this well . A new submersible pumpwas installed in well RD-34A on August 23 d , and the well was purged dry . Although the

static water level had not recovered by August 29t, VOC and tritium samples were collected

using a disposable bailer .

Carbon disulfide was reported below the PQL in several samples . Residue from powderednitrile sampling gloves has been identified as a possible source of the carbon disulfidedetections .

B . Results of Fuel Hydrocarbon Analyses

Gasoline range organics were not detected in the seven Chatsworth Formation wells sampled

for fuel hydrocarbons (Table 8) .

C . Results of Trace Metal Analyse s

Four Chatsworth Formation wells (RD-56B, RD-59A, RD-59B and RD-59C) were sampledduring the third quarter for trace metals (Table 9) . All results were within historic ranges .Concentrations of iron and manganese in the RD-59A sample exceeded secondary drinking

water MCLs for these constituents .

D . Results of Radiological Analyses

Fourteen Chatsworth Formation wells were sampled for radiological parameters during the

third quarter of 2000. The wells were sampled for gross alpha, gross beta, tritium, and

gamma-emitting radionuclides (Tables 10 and 11) .

None of the gross alpha, gross beta, or tritium results exceeded the drinking water MCLs of

15 picoCuries per liter (pCi/1), 50 pCi/1, and 20,000 pCi/1, respectively . No gamma-emitting

radionuclides, including man-made gamma-emitting radionuclides cobalt-57, cobalt-60 ,

cesium-134, and cesium-137, were detected above their respective minimum detectable

activities (Table 11) . No MCLs have been established for individual gamma-emitting

radionuclides .

HALEY &AWRIC H

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4.03 Perchlorate Results

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HALEY &ALDRICH

Three Chatsworth Formation wells were sampled for perchlorate during the third quarter of

2000. An action level of 18 µg/1 has been established by California . Perchlorate results for

the third quarter 2000 are presented in Table 12 . Perchlorate was not detected in

groundwater samples from wells RD-59A, RD-59B, and RD-59C .

4.04 Off-site Private Wells and Springs

Four off-site private wells were sampled for VOCs and one well was sampled for perchlorate

during the third quarter 2000. Perchlorate was not detected in the duplicate samples collected

from well OS-17 (Table 12) . As in historical samples, VOCs were not detected in OS-17 and

OS-26 samples (Table 7) . The TCE reported in duplicate OS-24 samples was within the

historic range for this well . However, cis-1,2-DCE, 1,1-DCE, and tetrachloroethylene were

detected above the PQLs for the first time in both samples (GWRC, 2000a) .

Concentrations of bromodichloromethane, bromoform, chloroform, and

dibromochloromethane reported in the OS-16 sample suggest the sample point is connected to

the municipal water system . Similar results were obtained during the first quarter when OS-

16 was sampled froln a spigot closer to the well (GWRC, 2000b) . Inspection and verification

of source water to the sampling points is required .

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V. POST-CLOSURE PERMIT S

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1HALEY &ALDRICH

Per the Post-Closure Permits (California DTSC, 1995), monitoring was conducted this

quarter at the detection monitoring wells, which include the Facility background wells .

Specific compliance issues for the evaluation monitoring wells, detection monitoring wells,

and point of compliance wells are discussed below .

5 .01 Background Wells

Five facility wells have been designated as background wells (RD-6, RD-13, RD-48A, RD-

48B and RD-48C). During this quarter, background well samples were analyzed for VOCs

(Table 13) .

VOCs were not detected in background well samples collected during the third quarter 2000 .

Verification samples collected from well RD-48B did not confirm the presence of TCE that

appeared in second quarter samples (Haley & Aldrich, 2000) .

5.02 Evaluation Monitoring

The Post-Closure Permit requires sampling of wells in the evaluation monitoring program,

including Point of Compliance wells, evaluation monitoring wells, and interim corrective

action wells . The evaluation monitoring and interim corrective action wells were sampled

during the first quarter of 2000, and Point of Compliance wells were sampled during the

second quarter (Table 2) .

5.03 Detection Monitoring

A . Detection Monitoring Well s

The designated detection monitoring wells were sampled during the third quarter of 2000 in

compliance with the Post-Closure Permits . Detection wells sampled during the reporting

period included wells RD-5B, RD-SC, RD-6, RD-13, RD-16, RD-32, RD-37, RD-39A, RD-

43A, RD-43B, RD-43C, RD-44, RD-48A, RD-48B, RD-48C, RD-51C, RD-52C, RD-58B,

RD-61, RD-62, and WS-4A .

No VOCs were detected above the PQLs in groundwater samples collected from the detection

monitoring wells except for a low concentration of carbon disulfide in the duplicate sample

from detection monitoring well RD -61 (Tables 7 and 8) . Carbon disulfide was not detected

in the primary sample from RD-61 or in the field blank prepared at RD-61 .

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The carbon disulfide reported in the RD-61 sample, at 0 .8 µg/1, was below the maximumcarbon disulfide concentration detected in site background wells . Per the Post-ClosurePermits, this detection monitoring well does not meet the criteria requiring verificationsampling .

HALEY &ALDRICH

B . Perimeter Well s

In addition to the designated detection monitoring wells, several perimeter wells were

sampled during the third quarter monitoring event. Perimeter wells sampled during the

reporting period included wells RD-18, RD-19, RD-22, RD-33B, RD-33C, RD-39B, RD-50,

RD-56B, RD-57, RD-59A, RD-59B, RD-59C, RD-66, RD-67, RD-68A, RD-68B, RD-69,

RD-70 and RD-71 .

No VOCs were reported above the PQLs in water samples collected from perimeter wells(Tables 7 and 8) . In verification samples collected from well RD-56B, TCE was detected

below the PQL only in the duplicate sample and carbon disulfide was detected below the PQL

only in the primary sample. Other VOCs detected below the PQLs in perimeter wells

included methylene chloride in well RD-19 and carbon disulfide in wells RD-22, RD-50, RD-

59A, and RD-67 .

5.04 Results of Third Quarter Verification Sampling

During the third quarter, verification samples were scheduled for Point of Compliance well

SH-4, detection monitoring well RD-48B, and perimeter monitor well RD-56B . Verification

procedures included collecting primary and duplicate samples, a split sample, and a field

blank at each well . Results for the target wells and analytes are summarized in the following

table .

MonitoringConcentration (µg/1 )

Well Constituent( s)Program Primary Duplicate Split

Field

Blank

SH-4 2,4,5-TPoint o f

ComplianceDry

RD-48B TCE Detection <0 .27 <0.27 <0 .50 <0.27RD-56B TCE Perimeter <0 .27 0 .28J <0.50 <0.27

J = Trace result (less than the PQL, greater than the method detection limit )

The verification sampling conducted in August 2000 did not confirm the second quarter

detection of VOCs in the perimeter or detection wells listed above . Well SH-4 is scheduled

for verification sampling in November 2000 .

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5.05 Scheduled Fourth Quarter Sampling

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1HALEY &ALDRICH

Sampling of the designated background wells, detection monitor wells and evaluation monitor

wells for constituents of concern will be performed in November 2000 as part of the fourth

quarter groundwater monitoring event .

A . Verification Sampling

As per the Post-Closure Permits, compounds detected in detection monitoring wells duringquarterly groundwater monitoring events may be subject to verification procedures to

determine whether the data are valid . Verification procedures include collecting primary andduplicate samples, a split sample, and a field blank at each well .

The only constituent detected above the PQL in detection monitoring wells during the third

quarter was carbon disulfide in the duplicate sample from well RD-61 . This compound had

been detected previously in less than 50 percent of samples from site background wells at a

concentration below the maximum concentration detected in the background wells . Wells

scheduled for verification sampling during the next scheduled sampling event in November

2000 are identified below .

SH-4Well

8151Monitoring ProgramPoint of Compliance 2,4,5-T

26472/73/M419 13

EPA Method Constituent(s)

HDMSP00140834

VI. REFERENCES

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HALEY &ALDRICH

1 . California Department of Toxic Substances Con trol (DTSC), 1995 . "HazardousWaste Facility Post-Closure Permit , Regional Permit Numbers PC-94 /95-3-02 andPC-94195-3-03 ." Permits for Areas I and III , and Area II, effective May 11, 1995 .

2. ------, 1996 . Correspondence , "Review of Sampling and Analysis Plans - EPA ID

Numbers CAD093365435 AND CA 18000900100 - Santa Susana Field Laboratory

(SSFL), Rocketdyne Division Facility, Santa Susana , Californ ia ." January 25, 1996 .

3 . 40 CFR 264 . Code of Federal Regulations, Title 40, Part 264, Appendix IX.

Groundwater Monitoring List .

4. 40 CFR 265 . Code of Federal Regulations, Title 40, Part 265 . Interim Status

Standards for Owners and Operators of Hazardous Waste Treatment , Storage andDisposal Facilities .

5 . DOE , 1989 . U .S. Department of Energy . " Environmental Survey Preliminary

Report , DOE Activities at the Santa Susana Field Laboratories , Ventura County,

California ." February 1989 .

6. DOHS, 2000. California Department of Health Serv ices . "California Drinking

Water Standards , Action Levels, and Unregulated Chemicals Requiring Monitoring ."July 2000 .

7 . EnviroSolve Corporation, Inc., 2000a. " Santa Susana Field Laboratory,

Groundwater Treatment System , Monthly Monitoring Report , Month of June 2000 . "

8 . ------, 2000b. "Santa Susana Field Laboratory, Groundwater Treatment System,

Monthly Monitoring Report, Month of July 2000 . "

9. ------, 2000c . " Santa Susana Field Laboratory, Groundwater Treatment System,

Monthly Monitoring Report, Month of August 2000 . "

10. ------, 2000d. "Santa Susana Field Laboratory, Groundwater Treatment System,

Monthly Monitoring Report, Month of September 2000 . "

11 . Groundwater Resources Consultants , Inc., 1995a . "Sampling and Analysis Plan,

Hazardous Waste Facility Post-Closure Permit PC-94 /95-3-02 , Area II , Santa Susana

Field Laboratory , Rockwell International Corporation , Rocketdyne Division ." June

5, 1995 .

26472/731M419 14

HDMSP00140835

12. ------, 1995b . "Sampling and Analysis Plan, Hazardous Waste Facility Post - ClosurePermit PC-94/95-3-03, Areas I and III, Santa Susana Field Laboratory, RockwellInternational Corporation, Rocketdyne Division ." June 5, 1995 .

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HALEY &ALDRICH

13 . ------, 2000a. "Annual Groundwater Monitoring Report , Santa Susana FieldLaboratory , 1999, Boeing North American , Inc ., Rocketdyne Propulsion & Power,Ventura Coun ty, California ." February 28, 2000 .

14. ------, 2000b . "Groundwater Monitoring Quarterly Report , Santa Susana FieldLaboratory , First Qua rter , January through March 2000 , The Boeing Company,Rocketdyne Propulsion & Power , Ventura County, California ." May 26, 2000 .

15. Haley & Aldrich, Inc ., 2000 . "Groundwater Monitoring Quarterly Report, SecondQuarter 2000, April through June 2000 , San ta Susana Field Laboratory, Ventura

County, California ." August 29, 2000 .

16. Montgomery Watson , 2000 . "Technical Memorandum , Conceptual Site Model,Movement of TCE in the Chatsworth Formation ." April 2000 .

17. (A .E.) Schmidt Environmental , Inc ., 1995 . "Site Assessment Report for

Underground Storage Tank UT-37," prepared for Rockwell InternationalCorporation , Rocketdyne Division , Environmental Protection Department .

September 1995 .

26472/73/M419 15

HDMSPOOI4O836

HDMSPOO140837

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TABLE 1

WELL CONSTRUCTION DATA

Borehole Casin g

Well Identifier Area No .

EffectiveBo rehole Dept h

(feet)Diameter(inches)

Interva l(feet)

InsideDiameter(inches)

Interva l(feet )

Sealed Interva l(Feet)

Perforated Interval(Feet)

Measuring PointElevation(ft MSL)

Date Drillin gCompleted

SHALLOW ZONE WELLS

SH-1 III 10 .0 16 0 - 10 .0 4 0 - 10.0 0 - 5 .0 5 .5 - 10 .0 1771 .89 12-11-8 4SH-2 III 10 .6 16 0- 10 .6 4 0- 10.6 0 - 5 .0 6 .0 - 10 .6 1762 .00 12-11-8 4SH-3 111 9 .5 16 0- 9 .5 4 0- 9 .5 0 -4 .6 5 .0 - 9 .5 1761 .97 12-12-84

SH-4 III 17 .0 16 0- 17 .0 4 0- 13 .0 0 - 8 .0 9 .0 - 13 .0 1764 .22 12-12-84

Ski -5 III 10 .5 16 0- 10 .5 4 0- 10.5 0 - 5 .6 6 .0- 10 .5 1761 .96 12-13-84

SH-6 III 11 .5 16 0- 11 .5 4 0- 11 .5 0 - 6 .2 7 .0- 11 .5 1776 .99 12-17-84

SH-7 III 13 .5 16 0- 13 .5 4 0- 13 .5 0 - 8 .5 9 .5- 13 .5 1774 .11 01-16-8 5

SH-8 III 12 .0 16 0- 12 .0 4 0- 11 .4 0 - 5 .2 5 .9- 11 .4 1762 .37 01-17-8 5

S 11 -9 III 9 .0 16 0-9 .0 4 0-9 .0 0-3 .5 4 .0- 9 .0 1760 .02 (11-18-8 5

SH-10 Ill 8 .0 16 0- 8 .0 4 0- 7 .5 0 - 2A 3 .0- 7 .5 1756 .75 01-18-8 5

SH-11 III 17 .5 16 0- 17 .5 4 0- 17 .5 0- 11 .0 13 .0- 17 .5 1754 .56 01-16-85

RS-1 I 24 .5 16 0 -24 .5 4 0- 24 .5 0- 12 .5 14 .5 - 24 .5 1878 .60 06-08-85RS-2 1 26 .0 16 0- 26 .0 4 0- 26 .0 0- 15 .0 16 .0-26 .0 1901 .28 06-08-85RS-3 I 21 .0 16 0- 21 .0 4 0- 21 .0 0- 10 .0 11 .0-21 .0 1832 .39 06-08-85

RS-4 I 30 .0 16 0 - 30 .0 4 0- 30 .0 0 - 18 .0 20 .0- 30 .0 1824 .66 06-08-85RS-5 1 20 .0 16 0 -20 .0 4 0 - 20 .0 0 -7 .5 10 .0- 20 .0 1776 .72 06-07-85RS-6 1 18 .0 16 0- 18 .0 4 0- 18,0 0 - 7 .0 8 .0- 18 .0 1757 .43 06-07-85

RS-7 I 7 .5 16 0 - 7 .5 4 0 - 7 .5 0 - 1 .6 2 .5- 7 .5 1731 .37 06-07-85

RS-8 II 12 .5 16 0 - 12 .5 4 0 - 12 .5 0 - 5 .0 7 .0 - 12 .5 1820 .47 06-09-85RS-9 III 26 .2 16 0 -26 .2 4 0- 26 .2 0- 14 .2 16 .0-26 .2 1735 .52 09-11-85RS-10 II 17 .0 16 0 - 17 .0 4 0 - 17 .0 0 -6 .0 7 .3 - 17 .0 1762 .08 06-10-85

RS-11 IV 17 .5 16 0 - 17 .5 4 0 - 17 .5 0 -9 .0 10 .0- 17 .5 1789 .30 06-10-85RS-12 III 15 .3 16 0 - 15 .3 4 0- 15 .3 0 - 4 .0 5 .0 - 15 .3 1725 .86 06-09-85RS-13 II 22 .8 16 0 -22 .8 4 0- 22 .8 0- 15 .0 17 .0-22 .8 1644 .20 06-11-85RS-14 III 16 .0 16 0 - 16 .0 4 0- 16 .0 0 - 5 .0 6 .0 - 16 .0 1734 .78 06-09-85

RS-15 III 12 .0 16 0 - 12 .0 4 0- 12 .0 0 - 4 .5 5 .0 - 12 .0 1763 .55 06-10-85

RS-16 IV 20 .5 16 0- 20 .5 4 0- 20 .5 0- 14 .5 16 .5-20.5 1809 .10 06-11-85

RS-17 111 16 .0 16 0 - 16 .0 4 0 - 16,0 0 -4 .0 6.4 - 16 .0 1766 .52 06-10-85

RS-18 IV 13 .0 16 0- 13 .0 4 0- 13 .0 0- 6 .0 7 .5 - 13 .0 1801 .09 06-12-85RS-19 I 15 .0 16 0 - 15 .0 4 0- 15 .0 0 -4 .8 4.8 - 15 .0 1812 .60 09-12-85RS-20 I 20 .5 16 0- 20 .5 4 0- 20 .5 0- 8 .5 10 .5-20.5 1821 .89 09-12-85

RS-21 II 29 .0 16 0 - 29 .0 4 0- 24 .6 0 - 3 .5 14 .5 -24 .6 1765 .84 10-23-85

RS-22 II 31 .0 16 0 - 31 .0 4 0- 31 .0 0- 4 .0 21 .0-31 .0 1770 .16 10-23-85

RS-23 IV 13 .0 1 2 0 - 13 .0 4 0- 13 .0 0 -6 .8 8 .0 - 13 .0 1887 .25 08-23-88

RS-24 IV 8 .5 12 0- 8 .5 4 0- 8 .5 0 - 3 .0 4 .0 - 8 .5 1809 .24 08-25-88

RS-25 IV 13 .5 1'RIiNCI ILD I) - 13 .5 4 0- 13 .5 0- 2 .0 8 .5 13 .5 1862 .71 08-25-88RS -26 DESTROYED JULY 1989 DURING SOILS REMOVA L

RS-27 IV 9 .0 8 0- 9 .0 4 0- 9 .0 0 - 3 .0 5 .0- 9 .0 1804 .78 08-02-88

RS-28 IV 19 .0 8 0 - 19 .0 4 0 - 19 .0 0 - 9 .0 14 .0 - 19 .0 1768 .59 08-17-8 9

RS-29 II 38 .0 9-7/8 0 - 38 .0 4 0 - 37 .5 0- 17 .0 27 .0 - 37 .5 1833 .09 02-20-93

RS-30 1 23 .0 12 0 -23 .0 4 0- 21 .0 0- 9 .0 10 .5 -21 .0 1905 .91 03-20-9 1

Haley & Aldrich . Inc . 26472/73/M4I9 I

TABLE 1


EfBorehole Casing

Well Identifier Area No .fectiv e

Borehole Depth(feet)

Diamete r(inches )

Interval( feet)

Insid eDiameter(niches)

Interva l(feet)

Sealed Interva l( feet)

,Perforated Interval(Feet )

Measuring Poin tElevation(ft MSL)

Date DrillingCom tp ete d

RS-31 I 18 .0 12 0 - 18 .0 4 0 - 17 .5 0 - 6 .0 7 .0 - 17 .5 1906 .68 03-19-9 1RS-32 I 18 .0 12 0 - 18 .0 4 0 - 17 .0 0 - 6 .0 6 .5 - 17 .0 1906 .79 03-19-9 1RS-54 IV 38 .0 11-1/4

5-7/80 - 7 . 0

7 .0 - 38 .0

6-1/4

---0 - 7 . 0

---0 -7 .0

OPEN HOLE1836 .32 08-09-93

ES-1 I 26 .0 15 0 - 26 .0 6 (v)1 .3 - 25 .5 0 - 6 .0 15 .5 - 25 .5 1776 .72 10-20-8 6ES-2 I 17 .5 15 0- 17 .5 6 (v)1 .5 - 16 .7 0- 4 .8 6 .7 - 16 .7 1814 .60 10-20-8 6ES-3 I 27 .0 15 0 -27 .0 6 (v)1 .3 - 27 .0 0 -9 .4 17 .0 -27 .0 1777 .88 10-21-8 6ES-4 I 20 .0 15 0 - 20 .0 6 (v)1 .4 - 20 .0 0 -4 .0 5 .8 -20 .0 1817.24 10-21-8 6ES-5 I 19 .0 15 0- 19 .0 6 (v)l .3 - 19 .0 0- 5 .8 9 .0 - 19 .0 1818 .13 10-21-8 6ES-6 I 25 .0 15 0 -25 .0 6 0 -25 .0 0 - 5 .6 11 .6 -25 .0 1824 .91 11-04-8 6ES-7 I 23 .2 15 0 -23 .2 6 0 -23 .2 0 - 6 .5 8 .5 -23 .2 1826 .01 11-05-86ES-8 I 24 .1 15 0 -24 .1 6 0 .6-24 .1 0 -4 .7 12 .1 -24 .1 1824 .63 11-05-86ES-9 I 24 .2 15 0 - 24 .2 6 0 - 24 .2 0 -3 .4 11 .9 -24 .2 1827 .80 11-05-86ES-10 I 20 .0 15 0 -20 .0 6 0 -20 .0 0 - 5 .0 9 .7 -20 .0 1829.46 11 -05-86ES-I1 I 27 .0 15 0- 27 .0 6 0- 27 .0 0 -4 .2 7 .2-27 .0 1834 .62 11-06-8 6ES-12 I 22 .5 15 0 -22 .5 6 0 -22 .5 0 - 6 .9 10 .9 -22 .5 1837 .74 11-06-8 6ES-13 I 30 .0 15 0 -30 .0 G (v)1 .2 -23 .6 0 - 3 .1 6 .0 -23 .6 1776 .30 1 1-06-8 6ES-14 III 24 .6 15 0 -24 .6 6 0 -23 .5 0 - 9 .4 12 .9 -23 .5 1728 .45 11-10-8 6ES-15 III 24 .0 15 0 -24 .0 6 0 -24 .0 0 -10 .8 13 .5 -24 .0 1729 .94 11-10-8 6ES-16 III 24 .8 15 0 - 24.8 6 0- 24 .8 0- 4 .3 8 .1 -24 .8 1737 .90 11-10-8 6ES-17 III 28 .0 15 0 -28 .0 6 0- 28 .0 0 -7 .9 10 .4-28 .0 1739 .25 11-11-8 6ES-18 II 35 .0 15 0 - 35 .0 6 0 -26 .9 0 -9 .1 12 .9 -26 .9 1770 .20 11-11-8 6ES-19 II 33 .0 15 0 -33 .0 6 0 -26 .3 0 - 6 .3 10 .3 -26 .3 1769 .38 11-11-86ES-20 II 35 .0 15 0- 35 .0 6 0 -23 .0 0- 3 .5 9 .8 -23 .0 1770 .53 11-13-86ES-21 II 35 .0 12 0 - 35 .0 6 0 -35 .0 0 - 2 .2 15 .8 -35 .0 1769 .56 01-26-87ES-22 II 35 .5 12 0 - 35 .5 6 0 - 35 .5 0 - 5 .2 17 .5 -35 .5 1770 .91 01-27-87ES-23 III 20 .0 12 0 -20 .0 6 0 - 20 .0 0 - 2 .4 10 .6 -20 .0 1760 .59 01-27-87ES-24 III 30 .0 12 0 -30 .0 6 0 -30 .0 0 -11 .7 18 .3 -30 .0 1728 .41 01-28-87ES-25 III 35 .0 12 0 - 35 .0 6 0 -35 .0 0 -9 .2 19 .5 -35 .0 1737 .51 01-28-87ES-26 III 35 .0 12 0 -35 .0 6 0 -34 .5 0 - 8 .7 17 .5 -34 .5 1748 .01 01-28-8 7ES-27 III 35 .0 12 0 -35 .0 6 0- 35 .0 0 -9 .5 15 .3 -35 .0 1740.60 01-28-8 7ES-28 III 21 .0 12 0 - 21 .0 6 0 -21 .0 0 - 1 .7 8 .9-21 .0 1759 .44 01-28-8 7ES-29 Ill 28 .0 12 0 -28 .0 6 0 -28 .0 0 - 8 .4 11 .6 -28 .0 1760 .75 01-29-8 7ES-30 III 25 .0 12 0 -25 .0 6 0 - 25 .0 0 -5 .5 10 .1 -25 .0 1759 .41 01-29-8 7ES-31 IV 25 .0 12 0 -25 .0 6 0 -25 .0 0 - 9 .7 11 .6 -25 .0 1787 .01 01-29-8 7ES-32 111 25 .0 12 0- 25 .0 6 0 -21 .5 0 -4 .6 7 .5 -21 .5 1740.47 01-29-87HAR-2 1 30 .t) 8 I) - 30 .0 4 (v)I .1 - 30 .0 0- 6 .2 15 .4 - 3 110 1886 .38 05-12-87HAR-3 I 30 .0 8 0 - 30 .0 4 0 -30 .0 0- 6 .2 14 .7 -30 .0 1875 .48 05-13-87HAR-4 I 29 .0 8 0- 29 .0 4 0 - 29 .0 0- 6 .4 12 .1 -29 .0 1873 .40 05-13-87HAR-9 II 30 .5 8 0- 30 .5 4 0 -30 .5 0- 5 .9 16 .1 -30 .5 1821 .31 05-16-87HAR-l l II 31 .0 8 0- 31 .0 4 0 - 3 1 . 0 0- 5 .0 11 .2 - 31 A 1828 .34 05-16-8 711AR-12 III 30 .5 8 0 - 30 .5 4 0 -30 .5 0- 3 .5 15 .5 -30 .5 1796 .73 05-17-8 7

Hairy & Aldrich, Inc . 26472/73/M41 9

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TABLE 1


Borehole Casing

Well Identifier Area No.Effective

Borehole Depth(feet )

Diamete r( inches )

Interval( feet)

Insid eDiameter(inches)

Interval(feet )

Sealed Interval( feet)

Perforated Interval(Feet )

Measuring PointElevation(ft MSL)

Date DrillingCompleted

HAR-13 III 31 .6 8 0 - 31 .6 4 0 - 31 .6 0 - 5 .5 17 .4-31 .6 1801 .18 05-17-87HAR-14 III 40 .0 8 0 - 40 .0 4 0 - 40 .0 0 - 5 .5 11 .8-40 .0 1797 .02 05-19-87HAR-15 II 40 .0 8 0 - 40 .0 4 0 - 40 .0 0 - 5 .0 10 .2-40 .0 1809 .69 05-19-87HAR-27 II 40 .0 8 0 - 40 .0 4 0 - 40 .0 0 - 3 .0 21 -40 .0 1720 .00 06-14-87HAR-28 II 40 .0 8 0 - 40 .0 4 0 - 40 .0 0 - 6 .0 20 - 40 .0 1720 .17 06-14-87IIAR-29 I1 40 .2 8 0-40 .2 4 0-40 .2 0 - 7 .0 20 -40 .2 1721 .88 ((6-14-871IAR-30 II 35 .0 8 0 - 35 .0 4 0 - 35 .0 0 - 6 .5 14 - 35 .0 1806 .47 06-15-87HAR-31 II 40 .0 8 0 - 40 .0 4 0 - 40 .0 0 - 6 .0 22 - 40 .0 1812 .45 06-15-87HAR-32 III 40 .0 8 0-40 .0 4 0-40.0 0-6 .0 21-40 .0 1735 .31 06-17-87HAR-33 III 35 .0 8 0 - 35 .0 4 0 - 35 .0 0 - 6 .0 18 - 35 .0 1744 .66 06-17-87HAR-34 Ili 23 .0 8 0 - 23 .0 4 0 - 23 .0 0 - 3 .0 9 - 23 .0 1751 .67 06-17-8 7CHATSWORTH FORMATIONRD-1 I 1 506 1 5

8-5/8

0 - 26 . 026 .0-506 .0

10-1/8

---

0 - 26 .0---

0 - 26 .0OPEN HOLE

1935 .89 01-09-8 6

RD-2 1 400 1 58-5/8

0 - 26 . 026 .0-400 .0

10-1/8---

0 - 26 .0---

0 - 26 .0OPEN HOLE

1873 .92 01-16-8 6

RD-3 I 300 1 58-5/8

0 - 27 . 027 .0 - 300 .1)

10-1/8---

0 - 27 .0---

0 - 27 .0OPEN I IOLE

1743 .50 "01-10-8 6

RD-4 11 496 1 5

8-5/80 - 27 . 0

27 .0-496 .010-1/8

---0 - 27 .0

---0 - 27 .0

OPEN HOLE1883 .85 01-22-86

RD-5A UL-S 158 12-1/ 46-1/4

0 - 29 . 5

29 .5 - 158 .0

8-1/4

---0 - 29 . 5

---0 - 29 .5

OPEN HOLE1704 .66 "02-17-9 3

RD-5B UL-S 310 1 5

9-7/8

0 - 27 . 027 .0-310 .0

10-1/85

0 - 27 . 00 - 310 .0

0 - 27 . 00 - 248 .0 257 .6 - 310 .0

1705 .89 05-20-9 3

RD-5C UL-S 480 17-1/211-7/8

6-1/4

0 - 29 . 0

29 .0-421 . 0421 .0 - 480 .0

12-1/86-1/ 4

---

0 - 28 . 00 - 418 . 0

---

0 - 29 . 00 - 421 .0

OPEN HOLE

1705 .25 06-27-94

RD-6 UL-S 260 1 59-7/8

8-5/8

0 - 27 . 027 .0 - 136 . 0

136 .0 - 260 .0

10-1/86-1/ 4---

0 - 27 . 00 - 140 . 0

---

0 - 27 .070.0 - 140 . 0

OPEN HOLE

1617 .21 01-31-86

RD-7 IV 300 1 58-5/8

0 - 25 .025 .0-300 .0

10-1/ 8---

0 - 25 .0---

0 - 25 .0OPEN HOLE

1812 .82 01-08-86

RD-8 111 50 1 58-5/8

0 - 27 . 027 .0-50 .0

10-1/ 8---

0 - 27 .0---

0 - 27 .0OPEN HOLE

1763 .43 01-29-8 6

RD -9 11 200 1 58-5/8

0 - 37 . 037 .0-200 .0

10-1/ 8---

0 - 37 .0---

0 - 37 .0OPEN HOLE

1773 .80 01-28-8 6

RD-10 1 400 1 58-3/8

0 - 30 . 030 .0-400 .0

10-1/ 8---

0 - 30 .0---

0 - 30 .0OPEN HOLE

1904 .43 05-07-8 6

RD-i i 111 71 1 58-3/8

0 - 30 . 030 .0-71 .0

10-1/8---

0 - 30.0---

0 - 30 .0OPEN HOLE

1762 .59 10-23-8 6

RD-12 III 72 1 58-3/8

0 - 30 . 030 .0-72 .0

10-1/8---

0 - 30 . 0---

0 - 30 .0

T OPEN HOLE1762 .55 10-23-86

Haley & Aldrich, Inc. 26472/73/M419 3

TABLE 1

WELL CONSTRUCTION DATABorehole Casing

Well Identifier Area No .Effective

Borehole Depth Diameter Interval Inside Intervalj

Sealed Interval Perforated Interval Measuring PointElevation Date Drilling

(feet ) ( inches) (feet)Diameter

(feet)( feet) (Feet )

(ft MSL) Completed(inches )

RD-13 IV 160 12 0 - 30 .0 8- 1 /4 0 - 30 .0________________

0- 30 .0_________________ _______________

1840 .27 07-25-8 96-1/2 30 .0 - 160.(1 --- -- OPEN HOLE

RD-14 IV 125 12 0 - 30 .0 8-1/4 0 -30 .0 0 - 30 .0 1824.29 07-27-8 96-1/2 30 .0 - 125 .0 --- --- OPEN HOLE

RD-15 IV 152 12 0 - 30 .0 8-1/4 0- 30 .0 0 -30 .0 1817 .70 07-27-8 96 -1/2 30 . 0 - 152 .0 --- --- OPEN HOL E

RD-16 IV 220 12 0 - 30 .0 8-1/4 0 - 30 .0 0 - 30 .0 1808 .99 08-15-8 96-I/2 30 .0 - 220 .0 --- --- OPEN HOL E

RD-17 IV 125 12 0 - 30,0 8-1/4 0 - 30 .0 0 - 30 .0 1836 .30 08-10-8 96-1/2 30 .0 - 125 .0 --- --- OPEN HOL E

RD-18 IV 240 12 0 - 30 .0 8-1/4 0 - 30.0 0 - 30 .0 1839 .49 07-28-896-1/2 30 .0 -240 .0 --- --- OPEN HOL E

RD-19 IV 135 12 0- 30 .0 8-1/4 0- 30.0 0- 30 .0 1853 .13 07-31-896 -1/2 30 .0 - 135 .1) --- --- OPEN IIOL E

RD-20 IV 127 12 0 - 30 .0 8-1/4 0 - 30 .0 0 - 30 .0 1819 .72 07-27-896-1/2 30 .0 - 127 .0 --- --- OPEN HOL E

RD-21 IV 175 12 0 - 30 .0 8-1/4 0 - 30 .0 0 -30 .0 1866 .96 08-11-896-1/2 30 .0 - 175 .0 --- --- OPEN HOL E

RD-22 IV 440 12 0 - 30 .0 8-1/4 0 - 30 .0 0 - 30 .0 1853 .41 08-15-896 -1/2 30 .0 -440 .0 --- --- OPEN HOLE

RD-23 IV 440 12 0 - 30 .0 8-1/4 0 - 30 .0 0 - 30 .0 1836 .37 08-16-8 96 -1/2 30 .0 - 440 .0 --- --- OPEN HOLE

RD-24 IV 150 12 0 - 30 .0 8-1/4 0 - 30 .0 0 - 30 .0 1809 .93 08-09-8 96-1/2 30 .0 - 150 .0 --- --- OPEN HOLE

RD-25 IV 175 12 0 - 30 .0 8-1/4 0 - 30 .0 0 -30 .0 1810 .76 08-07-8 96-1/2 30 .0 - 175 .0 --- --- OPEN HOLE

RD-26 II 160 12 0 - 30 .0 8-1/4 0 - 30 .0 0 - 30 .0 1880 .39 08-03-8 96-1/2 30 .0 - 160 .0 --- --- OPEN HOLE

RD-27 IV 150 12 0 -30 .0 8-1/4 0 -30 .0 0- 30 .0 1841 .67 08-10-8 96- 1 /2 30 .0 - 150 . 0 --- --- OPEN HOL E

RD-28 IV 150 12 0 - 30 .0 8-1/4 0 - 30 .0 0 - 30 .0 1810 .92 08-10-8 96-1/2 30 .0 - 150 .0 --- --- OPEN HOL E

RD-29 IV 100 12 0 - 30 .0 8-1/4 0 - 30 .0 0 - 30 .0 1806 .29 08-10-896-1/2 30 .0 - 100 .0 --- --- OPEN BOL E

RD-30 IV 75 12 0 - 30.0 8-1/4 0- 30 .0 0 - 30 .0 1768 .69 08-11-896-1/2 30 .0 - 75 .0 : --- --- OPEN HOLE

RD-31 1 175 12 0 - 30.0 8-1/4 0 - 30 .0 0 - 30 .0 1945 .02 08-16-896-1/2 3(1 .0 - 175 .0 --- --- OPEN 1(OLE

RD-32 OS 150 17-1/2 0 - 19 .0 12-1/8 0 - 19 .0 0- 19 .0 1808 .47 02-09-9 411-7/8 19 .0-99 .0 6-1/4 0 - 99 .0 0 - 99 . 05-7/8 99 .0 - 150 .1) --- --- OPEN IlOlJ i

Raley & Aldrich, Inc . 26472/73/M41 9

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TABLE 1

WELL CONSTRUCTION DAT A

Eff tiBorehole Casin

Well Identifier Area No .ec ve

Borehole Depth Diameter Interval InsideInterval

Sealed Interval Perforated IntervalMeasuring Point

ElevationDate Drilling

(feet) (inchts) ( feet) Diameter( feet) ( ft MSL)

(inches)RD-33A UL-N 320 17-1/2 0 - 11 .0 12-1/8 0 - 11 .0 0 - 11 .0 1792 .97 09-27-9 1

11 11 .0-100 .0 6-1/4 0 - 100 .0 0- 100. 05-1/2 100 .0 - 320 .0 --- --- OPEN HOLE

RD-33B UL-N 415 17-1/2 0 - 20 .0 12-1/8 0 - 20.0 0 - 20.0 1793 .21 09-27-9 1

11 20 .0-360 .0 6-1/4 0 - 360 .0 20 .0-360 .06-1/4 360 .0 - 415 .0 --- --- OPEN HOLE

RD-33C UL-N 520 17-1/2 0- 10 .0 12-1/8 0 - 10.0 0 - 10 .0 1793 .54 09-21-9 111 10 .0-480 .0 6-1/4 0 - 480 .0 0 - 480 . 0

6-1/4 480 .0 - 520 .0 --- --- OPEN HOL ERD-34A UL-N 60 12-1/4 0 - 16 .0 8-1/4 0 - 16 .0 0 - 16 .0 1761 .83 07-25-9 1

6-1/2 16 .0-60 .0 --- --- OPEN HOL ERD-34B UL-N 240 17-1/2 0 - 30 .0 12-1/8 0 - 30 .0 0 - 30 .0 1762 .51 08-11-9 1

11 30 .0- 180 .0 6-1/4 0 - 180 .0 0- 180. 06-1/4 180 .0 - 240 .0 --- --- OPEN HOL E

RD-34C UL-N 450 17-1/2 0 - 30 .0 12-1/8 0 - 30 .0 0 - 30 .0 1762 .60 08-10-9 111 30 .0-380.0 6-1/4 0 - 380 .0 0 - 380 . 0

6-1/4 380 .0 - 450.0 --- --- OPEN HOLERD-35A

1 1110 12-1/4 0 - 19 .5 8-1/4 0 - 19 .5 0 - 19 .5 1906 .68 01-24-93

6-1/4 19 .5 - 110 .0 4 0 - 105 .5 0 - 30 .0 65 .0 - 105 . 5RD-35B I 328 24 0-10 18 0-11 0-11 1905 .65 01-18-99

17-1/2 10 - 162 12 0- 158 0- 16 29-7/8 162 - 328 4 0 - 324 0 - 292 303 - 32 4

3 328 - 359 --- --- 328 - 359RD-36A OS 95 17-1/2 0 - 20 .0 12-1/8 0 - 20 .0 0 - 20 .0 1913 .09 01-14-9 4

6-1/4 20 .0-95 .0 --- --- OPEN HOLERD-36B OS 170 17-1/2 0 - 20 .5 12-1/8 0 - 20 .5 0 - 20.5 1915 .26 03-13-94

11-7/8 20 .5 - 120 .0 6-1/4 0 - 120.0 0- 120 . 05-7/8 120 .0 - 170 .0 --- --- OPEN HOLE

RD-36C OS 466 26 0 - 20 .0 20 0 - 20 .0 0 - 20 .0 1913 .82 04-23-9415 20 .0- 198 .0 10-1/8 0 - 197 .0 0- 198 . 0

5-718 198 .(1- 466 .0 4 0 - 455 .5 0 - 381 .0 405 .0 - 455 . 5RD-36D OS 605 24-1/2 0- 1(1 18 0-10 0-10 1920 .08 09-10-97

15 10-554 10 0-550 0-5509-7/8 554 - 608 4 0 - 605 0 - 560 575 - 605

RD-37 OS 400 17-1/2 0 - 38 .0 12-1/8 0 - 38 .0 0 - 38 .0 1870.01 01-28-9 411-7/8 38 .0-260 .0 4 0 - 377 .07-718 260.0 - 400 .0 272 .0 - 377 . 0

RD-38A OS 120 17-1/2 0 - 20 .0 12-1/8 0 - 20 .0 0 - 20 .0 1878 .92 02-12946-1/2 20 .0 - 120 .0 --- --- OPEN HOL E

RD-38B OS 370 24 0-6 18 0-6 0-6 1881 .45 12-15-9817-1/2 6- 170 12 0- 161 0- 17011-7/8 170 - 279 6 11 - 277 (1 - 27 95-1/2 279 - 370 --- --- OPEN HOL E

Haley & Aldrich, Inc . 26472/73/M4195

TABLE 1


Borehole CasingEffective

Inside Sealed Interval Perforated Interval Measuring PointDate Drillin gWell Identifier Area No . Borehole Depth Diameter Interval

DiameterInterval (feet) ( Feel) Elevation

Completed(feet) ( inches) (feet) (feet) (ft MSL)(inches)

RD-39A OS 159 17-1/2 0 -20 .0 12-1/8 0 -20 .0 0 - 20 .0 1960 .23 02-02-946-1/2 20 .0 - 159 .0 --- --- OPEN HOL E

RD-39B OS 477 24 0-12 16 0-12 0-12 1959 .48 11-11-9715 12-213 10 0-210 0-21 3

9-1/2 213 - 477 4 0 - 470 0 - 424 440 - 47 06-1/2 477 - 500 --- --- 477 - 500

R0-40 II 300 12-1/4 0 - 19 .5 8-1/4 0 - 19 .5 0- 19 .5 1972 .02 01-08-936-1/4 19 .5 - 300 .0 --- --- OPEN HOLE

RD-41A 11 120 12-1/4 0- 19 .5 8-1/4 0- 19 .5 0- 19 .5 1773 .09 01-10-9 36-1/4 19 .5 - 120 .0 --- --- OPEN HOL E

RD-41B II 390 17-1/2 0 - 19 .5 12-1/8 0 - 19 .5 0- 19 .5 1774 .32 10-19-9 311-7(8 19 .5 - 340 .0 6-1/4 0 - 336 .0 0 - 340 . 05-7/8 340 .0 - 390 .1) --- --- OPEN 1101 . E

RD-41C II 558 17-1/2 0 - 19 .5 12-1/8 0 - 19 .5 0- 19 .5 1773 .33 10-05-9 311-1/4 19 .5-492 .0 6-1/4 0 - 491 .0 0 - 492 .06-1/4 492.0- 558 .0 --- --- OPEN HOL E

RD-42 II 120 12-1/4 0 - 19 .5 8-1/4 0 - 19 .5 0- 19 .5 1945 .46 01-09-9 36-1/4 19 .5 - 120 .0 --- --- OPEN HOL E

RD-43A OS 98 17-1/2 0 - 19 .5 12-1/8 0- 19 .5 0- 19 .5 1680 .16 09-09-946-1/2 19 .5 - 98 .0 --- --- OPEN HOL E

RD-43B OS 295 17-1/2 0 -20 .0 12-1/8 0 -20 .0 0- 20 .0 1680 .21 10-25-9411-7/8 20.0 - 240 .5 6-1/4 0 - 240 .5 0 - 30. 56-1/2 240.5 - 295 .0 --- --- 115 .5 -240 .5 OPEN HOL E

RD-43C OS 439 .5 17-1/2 0 - 20 .0 12-1/8 0 -20 .0 0 - 20 .0 1679 .31 10-10-9411-7/8 20 .0 - 370 .0 6-1/4 0 - 370 .0 5 .0 - 140 . 06-1/2 370.0-439 .5 --- --- 183 .0 - 219 .0 OPEN HOLE

318 .0 - 368 . 0

RD-44 I 485 17-1/2 0 - 20 .0 12-1/8 0 -20 .0 0 - 20 .0 2035.92 03-13-9 36-1/4 20.0 -485 .0 --- --- OPEN HOLE

RD-45A I 480 17-1/2 0 - 19 .5 12-1/8 0 - 19 .5 0 - 19 .5 1837 .66 02-06-936-1/2 19 .5 - 480 .0 --- --- OPEN HOLE

RD-45B 1 590 17-1/2 0- 20 .0 12-1/8 0- 20 .0 0- 20 .0 184(1 .09 09-11-9411-7/8 20 .0 - 538 .0 6-1/4 0 - 538 .0 0 - 127 . 06-1/2 538 .0- 590 .0 --- --- 471 .0 - 538 .0 OPEN HOLE

RD-45C I 798 24 0 -20 .0 16 0 - 19 .0 0 - 20 .0 1835 .74 08-26-9411-7/8 20.0-750 .0 6-1/4 0- 750 .0 0- 135 . 06-1/4 750 .0-798 .0 --- --- 483 .0 - 540 .0 OPEN HOL E

590 .)) - 750 .0

Haley & Aldrich, Inc . 26472/73/M419 6

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TABLE 1


Borehole Casin gEffective

Inside Sealed Interval Perforated IntervalMeasuring Point Date Drilling

Well Identifier Area No . Borehole Depth Diameter Interval Diameter Interval ( feet) (Feet )Elevation

Complete d(feet) (inches) ( feet ) (feet ) (ft MSL)

(inches)

RD-46A I 140 12-1/4 0 - 29 .5 8-1/4 0 - 29.5 0 - 29 .5 1805 .80 01-13-936-1/4 29 .5 - 140 .0 --- --- OPEN HOLE

RD-46B I 328 24 0-20 18 0-20 0-20 1807 .19 12-19-9817-1/2 20 - 193 12 0- 190 0 - 19 39-7/8 193 - 328 4 0 - 325 0 -281 293 - 32 5

3 328 - 366 --- --- 328 - 366RD-47 1 710 17-1/2 0 - 19 .0 12-1/8 0 - 19.0 0 - 19 .0 2045 .72 04-01-93

6-1/2 19 .0 - 710 .0 --- --- OPEN HOL E

RD-48A UL-S Ill) 12-1/4 0 - 20 .0 8-1/4 0 - 20.0 0 - 20 .0 1736 .54 03-15-936-1/2 20 .0- 110 .0 --- --- OPEN HOL E

RD-48B UL-S 248 17-1/2 0- 29 .5 12-1/8 0- 29 .5 0- 29 .5 1735 .40 05-26-93

11-1/4 29 .5- 200 .0 6-1/4 0- 200 .0 0- 198 . 5

6-1/4 21X1 .0 - 248 .0 --- --- OPEN 1101 .1 1

RD-48C UL-S 438 17-1/2 0 - 30 .0 12-1/8 0- 30 .0 0 - 30 .0 1734 .95 05-16-9 3

11-1/4 30 .0-371 .0 6-1/4 0- 371 .0 0- 371 .06-1/4 371 .0 -438 .0 --- --- OPEN HOL E

RD-49A II 50 12-3/4 0- 18 .5 8-1/4 0- 18 .5 0- 18 .5 1867 .11 06-08-9 36-1/4 18 .5 - 50 .0 --- --- OPEN HOL E

RD-49B 11 298 17-1/2 0 - 20 .0 12-1/8 0 - 20 .0 0 - 20 .0 1867 .74 06-14-9 311-7/8 20 .0 - 250 .0 6-1/4 0 - 250 .0 0 - 250 .05-7/8 250 .0 - 298 .0 --- --- OPEN HOL E

RD-49C II 558 17-1/2 0 - 19 .0 12-1/8 0 - 19 .0 0 - 19 .0 1869 .22 07-07-9 311-7/8 19 .0-500 .0 6-1/4 0 - 491 .0 0 - 491 . 06-1/4 500 .0 - 558 .0 --- --- OPEN HOL E

RD-50 IV 195 12-3/4 0 - 18 .5 8-1/4 0- 18 .5 0 - 18 .5 1914 .88 05-28-9 36-1/4 18 .5 - 195 .0 --- --- OPEN HOL E

RD-SIA II 250 24 0 - 50 .0 12-1/8 0- 50 .0 0- 50.0 1832 .51 07-11-9 111-3/4 50 .0- 160 .0 6-1/4 0 - 160 .0 0- 160 . 05-1/2 160 .0 -250 .0 --- --- OPEN HOLE

RD-SIB II 370 24 0- 48 .0 12-1/8 0- 48 .0 0 -48 .0 1832 .68 07-11-9 111-3/4 48 .0 - 300 .0 6-1/4 0- 300 .0 0- 300 . 05-1/2 300 .0 - 370 .0 --- --- OPEN HOLE

RD-51C 11 602 14 0 - 13 .5 12-1/8 0- 13 .5 0 - 13 .5 1831 .65 07-09-9 111-3/4 13 .5-510 .0 6-1/4 0-510 .0 0-510 . 05-1/2 510 .0 - 602 .0 --- --- OPEN HOLE

RD-52A I 137 12-1/4 0 - 19 .5 8-1/4 0 - 19 .5 0 - 19 .5 1755 .09 01-25-9 36-1/2 19.5 - 137 .0 --- --- OPEN HOL E

RD-52B I 318 17-1/2 0 - 24 .0 12-1/8 0 -24 .0 0 -24 .0 1712 .15 12-06-9311-1 /4 24 .0 - 200 .0 6-1/4 0 -200 .0 0- 199 . 05-7/8 200.0 - 318 .0 --- --- OPEN I TOL E


TABLE 1

WELL CONSTRUCTION DATABorehole Casin g

EffectiveInside Sealed Interval Perforated Interval

Measuring PointDate Drillin g

Well Identifier Area No. Borehole Depth Diameter IntervalDiameter

Interval (feet ) (Feet) ElevationComplete d(feet) ( inches) ( feet) ( feet) (ft MSL)

(inches)

RD-52C I 678 17-1/2 0 - 20 .0 12-1/8 0- 20 .0 0 -20 .0 1712 .83 11-29-9311-7/8 20.0 - 450 .0 0 -620. 011-1/4 450 .0-620 .0 6-1/4 0 - 620 . 06 -1/4 620 .0 - 678 .0 --- --- OPEN HOL E

RD-53 I 159 14 0- 20 .0 12-1/8 0 -20 .0 0 - 20 .0 1909 .19 05-15-9 112 20 .0 - 77 .0 6-1/4 0 -77 .0 0 -77 .0

5-1/2 77 .0 - 159 .0 --- --- OPEN HOL ERD-54A IV 278 17-1/2 0 - 19 .0 12-1/8 0 - 19 .0 0 - 19 .0 1834 .99 08-07-93

11-1/4 19 .0- 119 .0 6-1/4 0- 119 .0 0- 119. 05-7/8 119 .0 - 278 .0 --- --- OPEN fiOL E

RD-54B IV 437 17-1/2 0 - 19 .0 '12-1/8 0 - 19 .0 0 - 19 .0 1835 .48 08-31-9311-1/4 19 .0- 379 .0 6-1/4 0 - 379 .0 0 -379. 05-7/8 379 .0 - 437 .0 --- --- OPEN HOL E

RD-54C IV 638 17-1/2 0 -20 .0 12-1/8 0 -20 .0 0 -20 .0 1834 .58 07-27-9311-1/4 20 .0-558 .0 6-1/4 0- 557 .0 0- 557 . 06-1/4 558 .0 - 638 .0 --- --- OPEN HOL E

RD-55A III 106 17-1/2 0 -28 .0 12-1/8 0 -28 .0 0 -28 .0 1756 .70 02-19-936-1/4 28 .0 - 106 .0 --- --- OPEN HOL E

RD-55B III 250 17-1/2 0 -20 .0 12-1/8 0 -20 .0 0 -20 .0 1757 .19 04-19-9311 20 .0- 199 .5 6-1/4 0- 199 .5 0 - 199. 5

5-7/8 199 .5 - 250 .0 --- --- OPEN HOL ERD-56A UL-N 397 .5 17-1/2 0 - 20 .5 12-1/8 0 - 20 .5 0 -20 .5 1758 .62 03-08-94

6-1/2 20 .5 - 397 .5 --- --- OPEN HOL E

RD-56B UL-N 463 22 0 - 10 16 0 - 10 0 -10 1761 .83 07-24-9715 10 - 453 10 0 - 443 0 - 44 3

6-1/2 453 - 463 --- --- OPEN HOL E

RD-57 UL-N 419 17-1/2 0- 19 .5 12-1/8 0- 19 .5 0 - 19 .5 1774 .15 02-23-946-1/2 19 .5 -419 .0 --- --- OPEN HOL E

RD-58A III 126 12-1/4 0- 19 .5 8-1/4 0- 19 .5 0- 19 .5 1756 .11 02-01-93

6-1/4 19 .5 - 126 .0 --- --- OPEN HOL E

RD-5813 III 268 17-1/2 0 - 20 .0 12-1/8 0 -20 .0 0 -20 .0 1761 .34 08-28-9411-718 20 .0-220 .0 6-1/4 0- 220 .0 0 - 220. 06-1/2 220 .0 - 268 .0 --- -- OPEN HOL E

RD-58C III 498 17-1/2 0 - 19 .0 12-1/8 0 - 19 .0 0 - 19 .0 1759 .59 08-09-9411-7/8 19 .0- 450 .0 6-1/4 0- 450 .0 0 - 450. 06-1/2 450 .0 -498 .0 --- --- OPEN HOL E

RD-59A OS 58 17-1/2 1) - 21 .0 12-1/8 0 -21 .0 0 -21 .0 1340 .50 05-19-946-1/2 21 .0-58 .0 --- --- OPEN HOL E

RD-598 OS 214 17-1/2 0 - 19 .5 12-1/8 0 - 19 .5 0 - 19 .5 1342 .49 07-02-94

6-1/2 19 .5-214 .0 2 0-209 .0 0-161 .0 178 .0-209 . 0

RD-59C OS 398 17-1/2 0 - 19 .0 12-l/8 0 - 19 .0 0- 19 .0 1345 .41 07-02-946 I/2 19 .)) ,198 .() 2 I) - 397 .0 t) - 186. 0

250 .0 - 328 .0 345 .5 - 397 . 0


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TABLE 1

WELL CONSTRUCTION DAT A


Inside Scaled Interval,

I erforaled IntervalMeasuring Point Date Drillin gWell Identifier Area No . Borehole Depth Diameter Interval

DiameterInterval ( feet) (Ht)

Elevation Complete d(feet ) ( inches ) ( feet ) (feet ) (ft MSL )

(inches)

RD-60 III 126 12-1/4 0 - 19 .5 8-1/4 0- 19.5 0 - 19 .5 1870 .40 01-21-936-1/4 19 .5 - 126 .0 --- --- OPEN HOLE

RD-61 I 129 17-1/2 0 - 19 .0 12- 1/8 0- 19.0 0 - 19 .0 1843 .88 04-26-94

6-1/4 19 .0- 129 .0 --- --- OPEN HOLERD-62 UL-S 238 17-1/2 0 -20 .7 12-1/8 0 -20.7 0 - 19 .5 1837 .20 05-06-94

6 -1/2 20 .7 - 238 .0 --- --- OPEN HOLE

RD-63 IV 230 12-3/4 0 - 20 .0 8-1/4 0 - 20.0 0 - 20 .0 1764 .85 05-10-94

6-1/2 20 .0- 230 .0 --- --- OPEN HOLERD-64 IV 398 12-1/4 0 - 19 .0 8-1/4 0 - 19 .0 0 - 19 .0 1852 .40 05-19-94

6-1/2 19 .0- 398 .0 --- --- OPEN HOLE

RD-65 IV 397 12-3/4 0 - 19 .0 8 -1/4 0- 19 .0 0- 19 .0 1819 .14 08-14-946-1/2 19 .0- 397 .0 --- --- OPEN HOLE

RD-66 OS 225 22 0 - 19 12 0 - 19 0 - 19 1730 .79 07-28-9 76-1/2 19- 225 --- -- OPEN HOLE

RD-67 UL -S 102 17-1/2 0- 20 12 0- 20 0-20 1901 .71 09-19-9 76-1/2 20- 1 (12 --- --- OPEN HOLE - '

RD-68A OS 90 17-1/2 0- 19 12 0 - 19 0 - 19 1307 .64 06-05-9 76-1/4 19 - 90 --- --- OPEN HOL E

RD-68B OS 272 --- 0-52 12 0-52 0 - 224 240-270 1312 .44 06-11 9 711-7/8 52 - 272 4 0 - 270

RD-69 I 103 17-1/2 0-19 12 0-19 0-19 1831 .28 06-16-9 76-1/4 19- 103 --- --- OPEN HOL E

RD-70 UL-N 278 17-1/2 0- 19 12 0 - 19 0 - 19 1732 .26 06-14-9 76-1/2 19- 278 --- --- OPEN HOL E

RD-71 OS 281 17-1/2 0 - 20 12 0 - 20 0 - 20 1740 .02 07-27-9 76-1/2 20- 281 --- --- OPEN HOL E

RD-72 1 182 24 0-27 12 0-27 0-27 1907 .25 12-23-9 76-1/2 27- 182 --- --- OPEN HOL E

RD-73 I 141 12 0-20 10 0-20 0-20 1901 .60 07-19-9 56 20- 141 --- -- OPEN HOL E

RD-74 IV 101 17-1/2 0-30 12 0-30 0-30 1810 .90 01-21-9 96-1/2 30- 101 --- --- OPEN HOL E

WS-4A I 502 13 0- 300 .0 10-1/4 0 -288 .0 UNKNOWN 96.0 -288 .0 1749 .77 195 31 0 300 .0 - 502 .0 --- --- OPEN HOL E

WS-5 I 2304 >12-1/4 0 -40 .0 12 0 -40 .0 0 - 55 .0 1830 .20 195 112-1/4 40 .0 -2304 .0 --- --- OPEN HOLE

WS-6 I 1440 30 0 - 6 .0 12-1/8 0 -450 .0 0 - 6 .0 306.0 - 450 .0 1932 .72 195 313 6 .0 - 450 . 0

8-1/4 450 .0 - 1440 .0 OPEN HOL E

WS-7 IV 700 15 0 - 400 .0 12-1/8 0 - 400 .0 UNKNOWN 216 .0-400 .0 1826 .19 1954I t) 400 .0 - 700 .0 --- --- OPEN I101 .I i

WS-8 III 7(N) 15 0 - 400 .() 12-1/8 0 - 400 .0 UNKNOWN 192 .0 - 400 .0 1794 .39 195410 400 .0 - 700 .0 --- --- OPEN HOL E


TABLE !

WELL CONSTRUCTION DATABorehole Casin g

EffectiveInside Scaled Interval ,Perforated Interval Measuring Point

Date DrillingWell Identifier Area No. Borehole Dc ril ►I Diameter Intervallli t

Interval (feel) (('eel) ElevationC l(feel) (inches) ( feet) wue er ( feet) (ft MSL ) omp ete d

(inches )

WS-9 II 1800 30 0 - 17 .0 12-1/8 0 - 17 .0 0- 14 .0 1883 .99 195 515 17 .0 - 690 .0 -10 690 .0 - 1800 .0 OPEN HOL E

WS-9A II 541 30 0 - 34 .0 14 0 -34 .0 0- 20 .0 1646 .00 195 615 34 .0-541 .0 12-1/8 0 - 541 . 0

8-1/4 0 - 539 .0 20 .0 - 539 .0WS-9B II 220 16 0 - 220 .0 --- --- UNKNOWN OPEN HOLE 1796 .89 195 6WS-11 III 677 13 0- 400 .0 12-1/8 0 - 400 .0 UNKNOWN 200 .0 - 400 .0 1748 .70 195 6

9 400 .0 - 677 .0 8-1/4 365 .5 - 615 .0 365 .0 -615 . 0OPEN HOLE

WS-12 1 1768 IS 0 - 408 .0 14 0 - 375 .1) UNKNOWN 1705 .98 195 612 408 .0 - 1768 .0 --- --- OPEN HOL E

WS-13 II 940 >13 0 - 750 .0 12-1/8 0 - 750 .0 0- 15 .0 22 .0 - 750 .0 1658 .62 195 711-1/2 750 .0-940 .0 --- --- OPEN HOL E

WS-14 I 1272 >16 0 -40 .0 16 0 -40 .0 UNKNOWN 1878 .23 195 712-3/4 40 .0 - 1272 .0 --- --- OPEN HOL E

WS-SP II 203 UNKNOWN 0 - 203 .0 6 0 -203 .0 UNKNOWN UNKNOWN 1766 .70 UNKNOW N

HAR-1 I 110 15 0- 30 .0 1(1-1/8 0 - 30 .0 0- 30 .0 1874 .13 05-16-878 30 .0 - 110 .0 --- --- OPEN HOL E

HAR-5 H 180 15 0 -30 .0 10-1/8 0 -30 .0 0 - 30 .0 1812 .65 05-16-878 30 .0 - 180 .0 --- --- OPEN HOLE

HAR-6 11 160 15 0 - 30 .0 10-1/8 0 - 30 .0 0- 30 .0 1815 .03 05-16-87

8 30 .0 - 160 .0 --- --- OPEN HOLEHAR-7 II 100 15 0 - 30 .0 10-1/8 0 - 30 .0 0- 30 .0 1728 .38 05-20-87

8 30 .0 - 100 .0 --- --- OPEN HOLE

HAR-8 II 130 15 0 - 30 .0 10-1/8 0 - 30 .0 0 - 30 .0 1730 .75 05-20-87

8 30 .0 - 130 .0 --- --- OPEN HOLEHAR-16 1 120 15 0 -30 .0 10-1/8 0 - 30 .0 0- 30 .0 1872 .31 05-20-87

8 30 .0 - 120 .0 --- --- OPEN HOLE

HAR-17 II 100 15 0 -30 .0 10-1/8 0 - 30 .0 0- 30 .0 1711 .59 05-20-878 30 .0 - 100 .0 --- --- OPEN HOLE

HAR-18 III 80 15 0 -30 .0 10-1/8 0 - 30 .0 0- 30 .0 1749.41 05-20-878 30 .0 - 80 .0 --- --- OPEN HOLE

HAR-19 II 220 15 0 - 30 .0 10-1/8 0 - 30 .0 0- 30 .0 1833 .46 06-17-878 30 .0 - 220 .0 --- --- OPEN HOLE

HAR-20 II 230 15 0 - 30 .0 10-1/8 0 -30 .0 0 - 30 .0 1830 .60 06-16-87

8 30 .0 - 230 .0 --- --- OPEN HOLEHAR-21 II 130 15 0 - 30 .0 10-1/8 0 -30 .0 0- 30 .0 1821 .30 06-18-8 7

8 30 .0 - 130 .0 --- --- OPEN HOLE

1-IAR-22 11 91) 15 11 - 30 .0 10-1/8 0 - 30 .0 0 - 30 .0 1816 .41 06-18-8 78 30 .0 - 90 .0 --- --- OPEN HOL E

Haley & Aldrich, Inc . 26472/731M419

-

10

TABLE 1



Inside Sealed Interval Perforated IntervalMeasuring Point Date Drilling

Well Identifi er Area No . Borehole Depth Diameter IntervalT Diameter

Interval ( feet ) (Feet)Elevation Completed

(feet) (inches) (feet) ( feet) (ft MSL )(inches)

HAR-23 III 90 15 0 - 30 .0 10-1/8 0 - 30 .0 0 - 30 .0 1805 .87 06-18-878 30 .0-90 .0 --- --- OPEN HOLE

HAR-24 I 110 15 0 - 30 .0 10-1/8 0 - 30 .0 0 - 30 .0 1906 .89 06-18-878 30 .0-110 .0 --- --- OPEN HOLE

HAR-25 1 90 15 0 - 30 .0 10-1/8 0 - 30 .0 0 - 30 .0 1889 .75 06-18-878 30 .0 - 9 ) .1) --- --- OPEN HOLE

HAR-26 111 90 15 0 - 30 .0 10-1/8 07300 0 - 30 .0 1763 .17 06-18-878 30 .0-90 .0 --- --- OPEN HOLE

PRIVATE OFFSITE -WELLS AND SPRINGS

OS-1 (converted OS 288 UNKNOWN UNKNOWN 10 0-52 UNKNOWN 1310 .34 UNKNOWN

to RD-68B) --- --- OPEN HOLEOS-2 OS 700 UNKNOWN UNKNOWN 10 0-17 0-17 1237 .01 03-18-59

--- --- OPEN HOLE

OS-3 OS 100 Drilled with Cable Tools 8-1/4 0-59 0-30 30 - 60 1298 .15 06-12-50--- --- OPEN HOLE

OS-4 OS Well Construction Data Unresolved or Not Available 1334 .00

OS-5 OS Well Construction Data Unresolved or Not Availabl e

OS-8(S) OSOS-10 OS 600 18 0-10 12-1/8 0-10 0-10 1016 .97 12-5 4

12 10 - 600 --- --- OPEN HOLE

OS-12(S) OSOS-13(S) OSOS-15 OS 218 Drilled with Cable Tools 8-1/4 0-40 0-40 1404 .86 08-27-60

1 1 -- --- OPEN HOLEOS-16 OS Well Construction Data Unresolved or Not Available 1785 .05OS-17 OS Well Construction Data Unresolved or Not Available 1564 .07

OS-21 OS Well Construction Data Unresolved or Not Available 1900 .3 9OS-24 OS 515 10 0-40 6-1/4 0-40 0-40 1947 .30 12-02-87

6 40 - 515 --- --- OPEN HOL E

OS-25 OS 515 10 0-30 6-1/4 0-36 0-36 2043 .58 12-10-876 36 - 515 --- --- OPEN HOL E

OS 26 OS 515 10 0-40 6-1/4 0-40 0-40 2080 .58 11-16-876 40 - 515 --- --- OPEN HOL E

OS-27 OS 477 10-1/4 0-30 10 0 - 5 .5 0-30 2043 .90

T

05-16-956 - 1/8 30 - 477 6 0-30 OPEN HOL E

Depth/intervals are measured in feet below land surface .

Note : Well OS-1 was converted to well RD-6813 in 1997 .(---) = No casing installed over the borehole interval specified ; open hole .(v) = Top of well below land surface, installed inside zero-grade vault .S = Spring; construction data not applicable .


UL-N = Undeveloped land north of FacilityUL-S = Undeveloped land south of Facility .OS = Off-site

11

1TABLE 2

2000 ANNUAL MONITORING SCHEDUL E

WANALYTICAL METHODS

ELLID AREA First

QuarterSecon dQuarter

ThirdQuarter

FourthQuarter

JUSTIFICATION/COSivi rEN T S

SHALLOW ZONE SH WELLSSH-1 IIISH-2 IIISH-3 III 8260 Evalua tion monitoringSH-4 III Appendix IX Point of complianc eSH-5 II ISH-6 II ISH-7 II ISH-8 II ISH-9 II ISH-10 II ISH-11 III 8260

PerchlorateEvaluation monitoring

ECL

French-

drain

III 8260 Interim corrective action

SHALLOW ZONE RS WELLSRS-1 I 8260

801 5Perchlorate

82608015

Evaluation monitoring

RS-2 I Perchlorat eRS-3 IRS-4 IRS-5 IRS-6 I Perchlorate

RS-7 I 8260 Evaluation monitorin gRS-8 II Appendix IX Point of complianc eRS-9 IIIRS-10 II 8260

PerchlorateEvaluation monitorin g

RS-11 IV 826 0

Perchlorate900 . 0901 . 1906 .0

Evaluation monitorin g

RS-12 II IRS-13 II 8260

PerchlorateEvaluation monitorin g

RS-14 II IRS-15 II IRS-16 IV 826 0

Perchlorate900 . 0906 .0

B/056 landfill I

RS-17 II I

See last page of Table 2 for footnotes and explanations. 'Haley & Aldrich . Inc . 264721731M419 1

HDMSP00140849

1

TABLE 2

2000 ANNUAL MOMTORING SCHEDULE

WELLANALYTICAL METHODS

AREA Fi tJUSTIFICATION/

ID rs Second Third Fourth COMMENTSQuarter Quarter Quarter Quarter

RS-18 IV 8260 8260 FSDFPerchlorate 900 . 0900 .0 901 . 1901 .1 906 . 0906 .0 U,ThTMU, Th

RS-19 I 8260 Evaluation monitoringPerchlorate

RS-20 IRS-21 II 8260 Evaluation monitoringRS-22 I I

RS-23 N 8260801 5Perchlorat e

RS-24 IV Perchlorat eRS-25 IV Perchlorat eRS-27 N Perchlorat eRS-28 N 8260 RMHF

Perchlorate900 . 0901 . 1906 . 0

RS-29 IIRS-30 I 8260 8260

8015 801 5Perchlorate

RS-31 I 8260 82608015 801 5

RS-32 I 8260 8260

8015 801 5RS-54 IV 8260 8260 FSDF

TM TMPerchlorate Perchlorate900.0 900 . 0

901 .1 901 . 1906 .0, U, Th 906.0, U, Th

SHALLOW ZONE ES WELLSES-1 I 8260 Interim corrective actionES-2 I 8260

PerchlorateES-3 I 8260 Interim corrective actionES-4 I 8260 Interim corrective actionES-5 I 8260 Interim corrective actionES-6 I 8260 Interim corrective actio nES-7 I 8260 Interim corrective actio n

See last page of Table 2 for footnotes and explanations .Haley & Aldrich, Inc . 26472/73/M419 2

HDMSP00140850

TABLE 2

2000 ANNUAL MO NITORING SCHEDULE


IDAREA First

QuarterSecon dQuarter

ThirdQuarter

Fourt hQuarter

JUSTIFICATION /COMMENTS

ES-8 IES-9 I 826 0

PerchlorateES-10 I 826 0

PerchlorateES- i l I 8260

TMInterim corrective actio n

ES-12 I 8260Perchlorate

ES-13 IES-14 III 8260 Interim corrective actionES-15 IIIES-16 IIIES-17 III 8260 Interim corrective actionES-18 I IES-19 I IES-20 IIES-21 II 8260 Interim corrective actio nES-22 II 8260 Interim corrective actio nES-23 III 8260 Interim corrective actio nES-24 III 8260

PerchlorateInterim corrective actio n

ES-25 II IES-26 III 8260

TMInterim corrective action

ES-27 III 8260 Interim corrective actionES-28 II IES-29 II I

ES-30 III 8260 Interim corrective actionES-31 IV 8260

Perchlorate900 . 0901 . 1906 . 0

ES-32 III 8260 Interim corrective actionSHALLOW ZONE HAR WELLSHAR-2 IHAR-3 I 8260 Evaluation monitorin gHAR-4 I 8260 Interim corrective actio nHAR-9 IIHAR-11 II 8260

8015Evaluation monitorin g

HAR-12 II IHAR-13 IIHAR-14 II Appendix IX Point of complianc eHAR-15 II Appendix IX Point of complianc e


HDMSP00140851

TABLE 2



IDAREA Firs t

QuarterSecondQuarter

ThirdQuarter

FourthQuarter

JUSTIFICATION/CO~IMENTS

HAR-27 II 8260 Evaluation monitorin gHAR-28 I IHAR-29 I IHAR-30 I IHAR-31 I IHAR-32 II IHAR-33 II IHAR-34 II I

CHATSWORTH FORMATION RD WELL SRD-1 I 8260 Interim corrective actio nRD-2 I 8260

TMInterim corrective actio n

RD-3 I 8260 Evaluation monitoringRD-4 II 8260 Interim corrective actio nRD-5A UL, S of

Area II8260 8260 8260 8260 Evaluation monitorin g

RD-5B UL, S o fArea II

8260 8260 8260 8260 Detection monitorin g

RD-5C UL, S ofArea II

8260 8260 8260 8260 Detection monitorin g

RD-6 UL,S o fArea II

8260 8260 8260 8260 Background

RD-7 IV 8260Perchlorate900 . 0901 . 1906.0, U, Th

826 0900 .0906 .0

B/056 landfil l

RD-8 II IRD-9 II 8260 Interim corrective actio nRD-10 I 8260 8260 Evaluation ' monitorin gRD-11 II IRD-12 II IRD-13 IV 8260 8260 8260 8260 Backgroun dRD-14 IV 8260

PerchlorateRD-15 IV 8260

TMPerchlorate

RD-16 IV 8260 8260 8260 8260 Detection monitorin gRD-17 IV 826 0

Perchlorate900.0901 . 1906.0

RMHF

RD-18 IV 8260Perchlorate

8260 8260 8260


HDMSP00140852

TABLE 2



AREA First Second Third FourthJUSTIFICATION /

'CO~ir w TSQuarter Quarter Quarter Quarter

RD-19 IV 8260 8260 8260 8260Perchlorat e


RD-21 IV 8260 8260 FSDFTM TMC r+ 6

Perchlorate900 . 0901 . 1906 . 0

RD-22 IV 8260 8260 8260 8260 FSDFTM900 . 0901 . 1906 . 0

RD-23 IV 8260 8260 FSDFTM TM900 . 0901 . 1906 . 0

RD-24 IV 8260 8260 B/05 9Perchlorate 900 . 0900.0 901 . 1901 .1 906 .0906. 0

RD-25 IV 8260 8260 B/059Perchlorate 900.0900.0 901 . 1901 .1 906 .0906 .0

RD-26 II 8260 Evaluation monitorin gPerchlorate

RD-27 IV 8260 8260 RMHFPerchlorate 900 . 0900 .0 901 . 1901 .1 906 .0906 .0

RD-28 IV 8260 8260 B1059Perchlorate 900 . 0900.0 901 . 1901 .1 906 .0906.0, U, Th


LII

1

See last page of Table 2 for footnotes and explanations. 'Haley & Aldrich, Inc. 26472/73/M419 5

iHDMSP00140853

TABLE 2


ANALYTICAL METHODSWELL JUSTIFICATION/

IDAREA Fu Second Third Fourth COMMENTS

Quarter Quarter Quarter Quarter

RD-30 IV 8260 8260 RMHFPerchlorate 900. 0

900.0 901 . 1901 .1 906.0906. 0

RD-31 I 8260RD-32 Off- site , 8260 8260 8260 8260 Detection monitoring

NE of Area I 8015 801 5RD-33A UL, NW 8260 8260 FSD F

of Area IV TMCN900 .0901 . 1906 . 0

RD-33B UL, NW 8260 8260 8260 8260 FSDFof Area IV TM 906 . 0

CN900 . 0901 . 1906 . 0

RD-33C UL, NW 8260 8260 8260 8260 FSDFof Area IV TM 906 . 0

CN900 . 0901 . 1906 . 0

RD-34A UL, NW 8260 8260 RMHFof Area IV TM 906 . 0

CN900 .0901 . 1906 .0, U, T h

RD-34B UL, NW 8260 8260 RMHFof Area IV TM 906 . 0

CN900 . 0901 . 1906 . 0

RD-34C UL, NW 8260 8260 RMH Fof Area IV TM 906 .0

CN900. 0901 . 1906 . 0

RD-35A I 8260RD-35B I 8260

See last page of Table 2 for footnotes and explanations .6Haley & Aldrich, Inc . 26472/73/M419

HDMSP00140854

TABLE 2


ANALYTICAL METHOD SWELL

ID AREA First Second Third FourthJUSTIFICATION /

COMMENT SQuarter Quarter Quarter Quarter

RD-36A Off- site , NE 8260 8260 Evaluation monitoringof Area I 8015 8015

RD-36B Off-site , NE 8260 8260 Evaluation monitoringof Area I 8015 8015

RD-36C Off-site, NE 8260 8260 Evaluation monitoringof Area I 8015 8015

RD-36D Off- site , NE 8260 8260of Area! 8015 8015

RD-37 Off-site, NE 8260 8260 8260 8260 Detection monitoringof Area I 8015 801 5

RD-38A Off-site , NE 8260 8260 Evaluation monitoringof Area! 8015 801 5

RD-38B Off- site , NE 8260 8260 8260 8260of Area! 8015 801 5

RD-39A Off-site , NE 8260 8260 8260 8260 Detection monitorin gof Area I

RD-39B Off- site , NE 8260 8260 8260 8260of Area !

RD-40 II 8260 8260 Evaluation monitoringPerchlorate

RD-41A II 8260Perchlorate

RD-41B II 8260Perchlorate

RD-41C II 8260Perchlorate

RD-42 II 8260Perchlorate

RD-43A Off- site, 8260 8260 8260 8260 Detection monitorin gNear Area I

RD-43B Off-site , 8260 8260 8260 8260 Detection monitorin gNear Area !

RD-43C Off-site , 8260 8260 8260 8260 Detection monitoringNear Area !

RD-44 I 8260 8260 8260 8260 Detection monitoringRD-45A I 8260 Evaluation monitorin gRD-45B I 8260 Evaluation monitorin gRD-45C I 8260 Evaluation monitorin gRD-46A I 8260 8260 Evaluation monitorin g

Perchlorat eRD-46B I 8260 8260RD-47 I 8260 Evaluation monitorin g

TM

Perchlorat eRD-48A UL, SW of 8260 8260 8260 8260 Background

Area I

t

See last page of Table 2 for footnotes and explanations. 'Haley & Aldrich, Inc . 26472/73/x419 7

HDMSP00140855

1

TABLE 2

2000 ANNUAL MOMTORING SCHEDULE

ANALYTICAL METHODSWELL

IDAREA First Second Third Fourth

JUSTIFICATION/

Quarter Quarter Quarter QuarterCOMMENTS

RD-48B UL, SW of 8260 8260 8260 8260 Backgroun dArea I

RD-48C UL, SW of 8260 8260 8260 8260 BackgroundArea I

RD-49A II 8260RD-49B II 8260RD-49C II 8260RD-50 IV 8260 8260

8015RD-51A II 8260 Evaluation monitoring

PerchlorateRD-51 B II 8260 Evaluation monitoring

PerchlorateRD-51C II 8260 8260 8260 8260 Detection monitoringRD-52A I 8260 Evaluation monitorin g

PerchlorateRD-52B I 8260 Evaluation monitoring

Perchlorat eRD-52C I 8260 8260 8260 8260 Detection monitorin gRD-53 I 8260 8260

8015 8015Perchlorate

RD-54A IV 8260 8260 FSDFTM TMPerchlorate 906 . 0900 . 0901 . 1

906.0, U, ThRD-54B IV 8260 8260 FSDF

TM TMPerchlorate 906 . 0900 . 0901 . 1906 . 0

RD-54C IV 8260 8260 FSD FTM TMPerchlorate 906 .0900 .0901 . 1906 .0

RD-55A III 8260 Evaluation monitoringPerchlorate

RD-55B III 8260 Evaluation monitoringPerchlorate

RD-56A UL, N of 8260Area II I

See last page of Table 2 for footnotes and explanations .Haley & Aldrich, Inc . 264721731M419 8

HDMSP00140856

TABLE 2



ID AREA First Second Third FourthJUSTIFICATION/

COMMENTSQuarter Quarter Quarter Quarter

RD-56B UL, N of 8260 8260 8260 8260Area III TM

RD-57 UL, NW of 8260 8260 8260 8260 FSDFArea W TM 906 .0

900 . 0901 . 1906 .0

RD-58A III 8260 Evaluation monitorin gRD-58B III 8260 8260 8260 8260 Detection monitorin gRD-58C III 8260 8260 8260 8260 Evaluation monitorin gRD-59A Off-Site, W 8260 8260 8260 8260 FSDF & RMHF

of Area IV TM Perchlorate TM PerchloratePerchlorate Perchlorat e900.0 906 . 0901 . 1906 . 0

RD-59B Off-Site, W 8260 8260 8260 8260 FSDF & RMH Fof Area IV TM TM

Perchlorate Perchlorate900.0 906 .0901 . 1906 .0

RD-59C Off- Site , W 8260 8260 8260 8260 FSDF & RMHFof Area IV TM TM

Perchlorate Perchlorate900.0 906 . 0901 . 1906 . 0

RD-60 III 8260 Evaluation monitorin gRD-61 I 8260 8260 8260 8260 Detection monitorin gRD-62 UL, S of 8260 8260 8260 8260 Detection monitorin g

Area IRD-63 IV 8260 8260 RMHF Area I V

900.0 extraction901 . 1

906 .0RD-64 IV 8260RD-65 IV 8260

RD-66 Off-site , NE 8260 8260 8260 8260of Area I

RD-67 UL, S of 8260 8260Area IV

RD-68A Off-site , N of 8260 8260 8260 8260Area II I

RD-68B Off-site , N of 8260 8260 8260 8260Area III

t

See last page of Table 2 for footnotes and explanations. 'Haley & Aldrich, Inc. 26472/73/M419 9

tHDMSP00140857

TABLE 2


WELANALYTICAL METHODS

LID AREA First

QuarterSecondQuarter

Thir dQuarter

FourthQuarter

JUSTIFICATION/COVIl~IENTS

RD-69 I 8260 8260RD-70 UL, N of

Area II8260 8260 8260 8260

RD-71 Off-site , NEof Area I

8260 8260 8260 8260

RD-72 I 8260RD-73 I 8260

8015Perchlorate

RD-74 IV 8260 8260 8260 8260

CHATSWORTH FORMATION HAR WELL SHAR-1 I PerchlorateHAR-5 II Perchlorat eHAR-6 II 8260

Perchlorat eHAR-7 II 8260 Appendix IX Point of complianc eHAR-8 I IHAR-16 I Perchlorate Appendix IX Point of complianc eHAR-17 II Appendix IX Point of complianc eHAR-18 III 8260 Interim corrective actionHAR-19 II 8260HAR-20 II 826 0HAR-21 II 8260

Perchlorat eHAR-22 II 8260

PerchlorateEvaluation monitoring

HAR-23 III 8260Perchlorate


HAR-24 I 826 0Perchlorate


HAR-25 I 826 0

PerchlorateHAR-26 III 8260 Evaluation monitoringCHATS WORTH FORMATION WS WELL SWS-4A I 8260 8260 8260 8260 Detection monitorin gWS-5 I 8260 Interim corrective actio nWS-6 I 8260 Interim corrective actio nWS-7 IVWS-8 II IWS-9 II 8260 Interim corrective actio nWS-9A II 8260 Interim corrective actio nWS-9B II 8260

Perchlorate

WS-11 II IWS-12 I

See last page of Table 2 for footnotes and explanations .Haley & Aldrich, Inc . 26472/73/M419 1 0

HDMSP00140858

TABLE 2

2000 ANNUAL MONITORING SCHEDULE

ANALYTICAL METHOD SWELL

lDAREA First Second Third Fourth

JUSTIFICATION/

Quarter Quarter Quarter QuarterCOViMENTS

WS-13 I IWS-14 IWS-SP II

OFF-SITE OS WELLS AND SPRING SOS-2 Off-Site 8260

Perchlorat eOS-3 Off-Site Perchlorat eOS-4 Off-Site 8260

PerchlorateOS-5 Off-Site PerchlorateOS-8 Off-Site 8260

PerchlorateOS-10 Off-Site PerchlorateOS-12 Off-Site Perchlorat eOS-13 Off-Site 8260 8260

PerchlorateOS-15 Off-Site 8260

PerchlorateOS-16 Off-Site 8260 8260


Perchlorate Perchlorat eOS-21 Off-Site 8260

Perchlorat eOS-24 Off-Site 8260 826 0OS-25 Off-Site 8260 8260


PerchlorateOS-27 Off-Site 8260

Perchlorate

E

See last page of Table 2 for footnotes and explanations .Haley & Aldrich, Inc. 26472/73/M419 11

HDMSPOO140859

TABLE 2ATTACHMENT A

ANALYTICAL METHODS2000 MONITORING SCHEDULE

1

Analytes/EPA Methodology

8260 =8270 =

8015 =

CN =

TM =

Cr+6Perchlorat e

Appendix IX

EPA method 8260 for volatile organ ic compounds (most recent version) .EPA method 8270 for base/neutral and acid org an ic compounds .EPA method 8015 modified for fuel hydrocarbons .Cyanide, EPA method 9012 .Trace metals, including antimony, arsenic , barium, beryllium, cadmium,chromium, cobalt, copper, iron, lead, manganese , mercury, molybdenum,nickel, selenium , silver , thallium, vanadium and zinc using EPA methods 6010and 6020 .Hexavalent chromium, EPA method 7196 .EPA method 300M, modified by the State of California for determination ofperchlorate by ion chromatography with suppressed conductivity detection .

Note : The laboratory uses the most current methods which may be updated from methods listed in Appendix IX (Codeof Federal Regulations, Title 40, Part 264 . Appendix IX, Ground-water Monitoring List) .

8081 = EPA method 8081 for pesticides .8082 = EPA method 8082 for PCBs .8141A = EPA method 8141A for organophosphorus pesticides .8151A = EPA method 8151A for herbicides .8260 = EPA method 8260 for expanded list of volatile organic compounds .8270 = EPA method 8270 for base/neutral and acid organic compounds .8290 = EPA method 8290 for dioxins and furans .Metals = EPA method 6020 series for metals .CN = EPA method 9012 for cyanide .Sulfide = EPA method 376 .2 for sulfide .

Radiochemical Parameter s

900.0 = EPA method 900.0 for gross alpha and beta radioactivity901 .1 = EPA method 901 .1 for gamma-emitting radionuclides906.0 = EPA method 906 .0 for tritiumU = EPA method 907 .0 for isotopic uraniumTh = EPA method 907 .0 for isotopic thoriu m

Note: An equivalent or superior in-house laboratory procedure will be considered acceptable for EPA methodology .Lab will use the most current promulgated version of each EPA method .

Haley & Aldrich, Inc . 26472/731M419 1 2

HDMSP00140860

TABLE 2ATTACHMENT A

(continued )

Evaluation Monitoring

Evaluation monitoring wells, including the point of compliance wells, will be sampled at least annually for EPA method8260, which will detect the constituents specified in Table 5 of the post-closure permit : tetrachloroethylene,trichloroethylene, 1,1,1-trichloroethane, 1,1,2-trichloroethane, cis-1, 2-dichloroethylene, trans- l ,2-dichloroethylene, 1,1-dichloroethylene, 1,1-dichloroethane, 1,2-dichloroethane, vinyl chloride, carbon tetrachloride, methylene chloride,chloroform, methyl ethyl ketone, benzene, toluene, xylenes, and ethylbenzene .

Point of compliance wells also will be sampled every other year for a full suite of Appendix IX parameters . Thesampling schedule will be 1993, 1995, 1997 . . .etc ., for all wells . The analytical parameters are listed in 40 CFR 264,Appendix IX . During off-years, wells will be sampled for a modified Appendix IX list annually (standard list of

constituents for EPA methods 8260 and 8270, plus 1,4-dioxane, nitrobenzene, 1,3-dinitrobenzene, and N-nitrosodimethylamine) .

Detection Monitoring

Detection monitoring wells will be sampled quarterly for EPA method 8260, which will detect the constituents specifiedin Table 6 of the post-closure permit : tetrachloroethylene, trichloroethylene, 1,1,1-trichloroethane, 1,1,2-trichloroethane, cis- l,2-dichloroethylene, trans-l,2-dichloroethylene, 1,1-dichloroethylene, 1,1-dichloroethane, 1,2-dichloroethane, vinyl chloride, carbon tetrachloride, methylene chloride, and chloroform .

Interim Corrective Action Monitorin g

All extraction wells will be included in the interim corrective action monitoring . These wells will be sampled annuallyfor EPA method 8260, which will detect the constituents specified in Table 5 of the post-closure permit . Theconstituents are listed above under "Evaluation Monitoring . "

Area IV Monitoring

Area IV sampling schedule subject to revision with contract renewal .

Note : U = Isotopic uranium , to be analyzed using EPA method 907 .0Th = Isotopic thorium , to be analyzed using EPA method 907 .0 .

Haley & Ald rich, Inc. 26472/73/M419 13

HDMSP00140861

1

TABLE 2ATTACHMENT A

(continued)

U

Background Monitorin g

The five background wells will be sampled quarterly for the expanded list of monitoring parameters (EPA method 8260)specified in Table 5 of the post-closure permit .

Background wells are sampled every five years for the constituents of concern (Table 3 of the post closure permit) on aschedule that will follow 1994. 1999, . . . etc . The background wells and the detection monitoring wells were all sampledfor constituents of concern in 1996 . The background wells were sampled again for constituents of concern in 1999 .

Notes: pHECTOCTOX

ClFeMnphenolsNaSO.4F8270

= EPA method 150 .1 or 9040specific conductance, EPA method 120.1total organic carbon, EPA method 415 . 1

= total organic halogens, EPA method 9020chloride, EPA method 300 . 0

= iron, EPA method 601 0= manganese, EPA method 601 0= EPA method 8270 (acid extractables only) or 8040= sodium, EPA method 601 0= sulfate, EPA method 300 .0= fluoride, EPA method 340 . 2= EPA method 8270 for acid and base/neutral semi-volatile compounds,

including N-nitrosodimethylamine (NDMA), nitrobenzene, and1,3-dinitrobenzene

Ammonia = Ammonia, EPA method 350 .2Formaldehyde = Formaldehyde, EPA method 8315NO3 = Nitrate, EPA method 353 . 21,4-dioxane = 1,4-dioxane, EPA method 8260 for volatile organic compound s

U

U

Laboratory Service s

Laboratories will be certified by the State of California for the appropriate analytical methods .

During sampling, the field parameters of turbidity, pH, temperature and specific conductance will be measured .


HDMSP00140862

TABLE 2ATTACHMENT B

REFERENCES USED IN PREPARING2000 MONITORING SCHEDULE

1 . California Department of Toxic Substances Control, 1994 . Correspondence to Rocketdyne EnvironmentalProtection Department, Request for Modification of Analytical Parameters for Appendix IX Sampling - EPA IDNumbers CAD093365435 and CA 18000900100 - Santa Susana Field Laboratory (SSFL) Rocketd_ne DivisionFacility, Santa Susana, California . September 13, 1994 .

2. ------- 1995 . Hazardous Waste Facility Post-Closure Permit, Regional Permit No. PC-94/95-3-02 and PC-94/95-3-03 . Permits for Areas I and III and Area II, effective May 11, 1995 . 22 California Code ofRegulations , Chapter 15, Article 6 .

3. 40 CFR 264. Code of Federal Regulations, Title 40, Part 264, Appendix IX, GroundwaterMonitoring List and Part 265, §265 .92, Sampling and Analysis .


HDMSP00140863

TABLE 3SUMMARY OF GROUNDWATER REMEDIATION FACILITIE S

THIRD QUARTER 20001 ' (gallons x 1,000)

Remediation System September Total Pumpage Total

Extraction Well(s)July 2000 August 2000

2000 Thud Quarter Pumpage2000 to Date

Permitted Systems

Delta WS-9A 3,937.7 1,607 .6 3,812 .3 9,357.6 319,928 . 0

HAR-7 10 .6 7 .8 9 .4 27 .8 2,648 . 9

Alfa WS-6 1,846.6 2,460.7 1,488 .8 5,796.1 500,742 . 2

Bravo WS-9 239.2 64 .4 0.0 303 .6 57,382 . 1

RD-4 434.1 124 .2 338 .0 896 .3 39,632 . 0

RD-9 53.7 41 .7 44.5 139.9 6,014 . 4

ES-21 3 .7 2 .4 1 .9 8 .0 461 . 5

ES-22 0.0 0.0 0.0 0.0 682 .8

Area I Road RD-1 210 .3 1 .8 1 .8 213 .9 80,124 . 4

RD-2 220.8 332.1 202 .3 755 .2 71,700 . 3

ES-1 0.2 0.2 0.3 0.7 60 . 1

ES-3 58.7 50.1 43 .4 152 .2 980 . 8

ES-4 0.0 0.0 0 .0 0.0 425 . 6

ES-5 0.0 0.0 0 .0 0.0 308 . 5

ES-6 7.4 3.6 2.3 13 .3 881 .9

ES-7 0.0 0 .0 0.0 0.0 48 . 3

WS-5 Area WS-5 409 .3 338 .5 240 .7 988 .5 540,162 . 9

ES-11 0.0 0.0 0 .0 0.0 52 . 1

HAR-4 0.0 0.0 0 .0 0.0 765 . 4

STL-IV ES-14 0.4 0.0 0 .0 0.4 76 . 7

ES-17 1 .4 1 .0 0 .4 2.8 276 . 6

ES-23 0.9 1 .0 0 .8 2.7 126 . 1

ES-24 1 .3 1 .2 0 .8 3 .3 96 . 8

ES-26 18 .2 17 .1 10 .9 46.2 2,416 . 4

ES-27 3 .2 3 .1 2 .0 8 .3 365 . 1

ES-30 26 .0 29 .8 22.0 77 .8 1,808 . 6

ES-32 0 .1 0.0 0.0 0.1 21 .7

1

Remediation system monitoring conducted by EnviroSolve Corporation . Pumpage data and cumulative pumpage provided byEnviroSolve Corporation .

NOTE : All totals do not add up exactly , as presented in table, due to rounding .


HDMSP00140864

TABLE 3SUMMARY OF GROUNDWATER REMEDIATION FACILITIE S

THIRD QUARTER 20001 ' (gallons x 1,000)

Remediation System September Total . Pumpage Total

Extraction Well(s ) July 2000 August 20002000 Third Quarter Pumpage

2000 to DatePermitted Systems (continued)

STL-IV HAR-17 24.3 26.9 20 .3 71 .5 2,770 . 7

(continued) HAR-18 8 .5 9 .6 7 .3 25 .4 551 . 1

ECL Sump 0 .6 0 .2 0 .0 0 .8 1,061 . 6

ECLFrench-drain

0 .0 0 .0 0.0 0.0 2,792 . 7

TOTAL 7,517.2 5,125.0 6 ,250.2 18 , 892 .4 1 ,636,390 . 9

Remediation System SeptemberTotal Pumpage 200 0

Extraction Well(s)July 2000 August 2000

2000Third Quarter Pumpage to

2000 Date

Interim System s

RMHF RD-63 32 .4 30.0 39.2 101 .6 207. 1

FSDF RS-54 0 .0 0.0 0 .0 0.0 4 . 6

RD-21 0 .0 0.0 0 .0 0 .0 6 . 9

B 1059 RD-24 39 .3 45 .7 32.0 117 .0 378 . 9

RD-25 9.1 11 .2 8 .8 29 .1 95 . 4

RD-28 9.0 11 .0 8 .3 28 .4 88 . 1

S-2 Sump 0.0 0 .0 0.0 0.0 0 .0

B/056 0.0 0 .0 0.0 0.0 132 . 1

TOTAL 89.9 97.9 88 .3 276.1 913 . 1

V Remediation system monitoring conducted by EnviroSolve Corporation . Pumpage data and cumulative pumpage provided byEnviroSolve Corporation .

NOTE : All totals do not add up exactly, as presented in table, due to rounding .

Haley & Aldrich, Inc . 26472/731x1419 2

HDMSP00140865

LII

TABLE 4SUMMARY OF WATER QUALITY RESULTS

FOR PERVIITTED GROLIIDWATER REMEDIATION FACILITIE STHIRD QUARTER 2000

Sample Location Date Sam led TCE / 11,2-DCE (µg/I) VOCs

p (µg ) Removed tocis trans Date (Ibs)

Delta ASU Influent 07-05-00 50 35 <1 .3 1178.308-01-00 97 62 <2.5 1183 . 309-06-00 74 53 <2.5 1184 . 9

Primary 07-05-00 1 .2 1 .7 <0. 5Effluent 08-01-00 <0.5 0 .89 <0. 5

09-06-00 0.62 0 .68 <0 . 5Secondary 07-05-00 <0 .5 <0 .5 <0 . 5Effluent 08-01-00 <0 .5 <0 .5 <0.5

09-06-00 <0.5 <0.5 <0. 5Alfa ASU Influent 07-05-00 15 38 2.2 453 . 4

08-01-00 16 36 2.7 454 . 209-06-00 16 37 2.9 455 .4

Primary 07-05-00 <0.5 1 .5 <0 . 5Effluent 08-01-00 <0.5 1 .5 <0. 5

09-06-00 <0.5 1 .2 <0. 5Secondary 07-05-00 <0 .5 <0.5 <0. 5Effluent 08-01-00 <0 .5 <0 .5 <0 . 5

09-06-00 <0 .5 <0 .5 <0 . 5Bravo ASU Influent 07-05-00 130 34 <5.0 120 .5

08-02-00 55 44 <1 .0 121 . 109-06-00 79 18 <2.5 121 . 4

Primary 07-05-00 <0.5 <0.5 <0.5Effluent 08-02-00 <0.5 <0.5 <0. 5

09-06-00 <0.5 <0.5 <0. 5Secondary 07-05-00 <0.5 <0.5 <0. 5

Effluent 08-02-00 <0.5 <0.5 <0. 509-06-00 <0.5 <0.5 <0. 5

Area I Road Influent 07-05-00 73 100 6.2 390 .7ASU 08-01-00 60 95 5.4 391 .9

09-07-00 83 110 9.9 393 .1Primary 07-05-00 <0.5 <0 .5 <0 . 5Effluent 08-01-00 <0.5 <0.5 <0.5

09-07-00 <0.5 <0.5 <0.5Secondary 07-05-00 <0.5 <0.5 <0.5

Effluent 08-01-00 <0.5 <0.5 <0.509-07-00 <0.5 <0.5 <0. 5

WS-5 Area Influent 07-07-00 11 20 0.92 224 .6UV/HZOZ 08-01-00 12 20 0.84 225 .5

09-06-00 8.0 15 0.85 226 . 2Effluent 07-07-00 <0.5 <0.5 <0. 5

08-01-00 <0.5 <0.5 <0. 509-06-00 <0.5 <0.5 <0.5

Haley & Aldrich . Inc . 26472/73/M4I9 1

HDMSP00140866

TABLE 4SUMMARY OF WATER QUALITY RESULTS

FOR PERMJr1'ED GROUNDWATER REMEDIATION FACILITIESTHIRD QUARTER 200 0

Sample Location Date Sa l d TCE /11,2-DCE ( .tg/1) VOC s

mp e ( .tg ) Removed tocis trans Date (lbs)

STL-IV Area Influent 07-05-00 100 11 <2.5 75.9ASU 08-01-00 140 20 <2.5 76.0

09-06-00 100 15 <2.5 76.1Primary 07-05-00 <0.5 <0.5 <0 . 5Effluent 08-01-00 <0.5 <0.5 <0 . 5

09-06-00 <0.5 <0.5 <0 . 5Secondary 07-05-00 <0.5 <0 .5 <0 . 5Effluent 08-01-00 <0.5 <0 .5 <0 . 5

09-06-00 <0.5 <0 .5 <0. 5Inte rim Systems

RMHF Primary 07-05-00 <0.5 <0 .5 <0 . 5Effluent 08-01-00 <0.5 <0.5 <0 . 5

09-06-00 <0 .5 <0.5 <0 . 5Secondary 07-05-00 <0 .5 <0.5 <0 . 5Effluent 08-01-00 <0 .5 <0.5 <0.5

09-06-00 <0 .5 <0.5 <0.5B/059 Primary 07-05-00 <0 .5 <0.5 <0.5

Effluent 08-01-00 <0.5 <0.5 <0. 509-06-00 <0.5 <0.5 <0.5

Secondary 07-05-00 <0.5 <0.5 <0. 5Effluent 08-01-00 <0.5 <0.5 <0 . 5

09-06-00 <0.5 <0 .5 <0 . 5

(<)TCE1,2-DCEµg/IlbsASUUV/HZOZ

Less than ; numerical value is the limit of detection for that compound.Trichloroethylene1,2-Dichloroethylene

Micrograms per literPound sAir stripper unitUltraviolet peroxidation

Samples analyzed for TCE and 1,2-DCE by EPA Method 8010B .All GRF water quality samples were collected by EnviroSolve Corporation personnel and analyzed by Del Mar Analytical .


t

HDMSP00140867

1

TABLE 5

S1 MMARY OF WATER LEVEL DAT ATHIRD QUARTER 2000

WellIdentifier

Date o fMeasurement

Reference PointElevation

(feet above MSL)

Depth to Water(feet)

Static Water LevelElevation

( feet above MSL )

SHALLOW ZONE WELLS

SH-1 08-03-00 1771 .73 DRY ---

SH-2 08-03-00 1762.68 9.41 1753 .27

SH-3 08-03-00 1761 .81 DRY ---

SH-4 08-03-00 1764 .05 DRY ---

SH-5 08-03-00 1761 .76 DRY ---

SH-6 08-03-00 1776.99 DRY ---

SH-7 08-03-00 1773 .87 DRY ---

SH-8 08-03-00 1763 .41 10.14 1753.27

SH-9 08-03-00 1761 .38 DRY ---

SH-10 08-03-00 1757 .91 DRY ---

SH-11 08-02-00 1756.28 10.89 1745.39

RS-1 08-01-00 1879 .68 DRY ---

RS-2 08-02-00 1901 .08 DRY ---

RS-3 08-02-00 1832 .39 DRY ---

RS-4 08-02-00 1824 .66 DRY -- -

RS-5 08-02-00 1776.72 18 .23 1758 .49

RS-6 08-02-00 1757.43 16 .92 1740 .5 1

RS-7 08-02-00 1732.27 4.12 1728 .15

RS-8 08-03-00 1821 .57 9 .08 1812 .49

RS-9 08-01-00 1735.52 23 .24 1712 .28

RS-10 08-02-00 1762 .08 DRY -- -

RS-11 08-01-00 1790.39 12.26 1778 .1 3

RS-12 08-01-00 1725.86 DRY ---

RS-13 08-01-00 1644.20 DRY ---

RS-14 08-01-00 1734.78 DRY ---

RS-15 08-01-00 1763.55 7 .93 1755 .62

RS-16 08-01-00 1811 .05 DRY ---

RS-17 08-01-00 1766.52 11 .40 1755 .1 2

RS-18 08-02-00 1802.86 12.06 1790.80

RS-19 08-02-00 1812.42 8 .44 1803 .98

RS-20 08-02-00 1821 .89 14 .88 1807 .0 1


HDMSP00140868

TABLE 5

SUMMARY OF WATER LEVEL DATATHIRD QUARTER 2000

Well

IdentifierDate o f

Measurement


(feet above MSL)



(feet above MSL)

RS-21 08-02-00 1765 .84 DRY -- -

RS-22 08-02-00 1770 .16 DRY ---

RS-23 08-02-00 1887 .25 DRY ---

RS-24 08-02-00 1809 .24 DRY ---

RS-25 08-02-00 1862.71 DRY ---

RS-27 08-01-00 1804 .78 DRY ---

RS-28 08-02-00 1768 .59 DRY ---

RS-29 08-02-00 1833 .09 DRY -- -

RS-30 08-01-00 1909 .01 19 .88 1889.1 3

RS-31 08-01-00 1909 .03 16 .96 1892.07

RS-32 08-01-00 1908 .99 14.91 1894.08

RS-54 08-02-00 1836 .32 UTM* ---

ES-1 08-02-00 1776 .72 21 .22* 1755 .50

ES-2 08-02-00 1814 .60 DRY ---

ES-3 08-02-00 1777 .88 22 .67* 1755.21 (P)

ES-4 08-02-00 1817.24 17 .25* 1799 .99

ES-5 08-02-00 1818.13 12 .50* 1805 .63

ES-6 08-02-00 1824.91 21 .92* 1802 .99

ES-7 08-02-00 1826.01 23 .32* 1802 .69

ES-8 08-02-00 1824 .63 DRY -- -

ES-9 08-02-00 1827 .80 DRY -- -

ES-10 08-02-00 1829.46 DRY -- -

ES-11 08-02-00 1834 .62 28.24* 1806.38

ES-12 08-02-00 1837 .74 DRY -- -

ES-13 08-02-00 1777 .30 13 .86 1763.44

ES-14 08-03-00 1728 .45 21 .05* 1707.40

ES-15 08-01-00 1729 .94 22.50 1707.44

ES-16 08-01-00 1737 .90 23.10 1714.80

ES-17 08-03-00 1739 .25 24.78* 1714.47

ES-18 08-02-00 1770 .20 DRY ---

ES-19 08-02-00 1769 .38 DRY ---

ES-20 08-02-00 1770 .53 DRY ---

1

I

Haley & Aldrich, Inc . 26472/73/M419 2 '

HDMSP00140869

1

TABLE 5

SUMMARY OF WATER LEVEL DATATHIRD QUARTtR 2000

WellIdentifier

Date o fMeasurement

Reference Poin tElevation

(feet above MSL)

Depth to Water(feet )

Static Water Leve lElevation

( feet above MSL )

ES-21 08-02-00 1769 .56 32 .20* 1737.36ES-22 08-02-00 1770.91 31 .74* 1739 .17

ES-23 08-03-00 1760 .59 16.90* 1743 .69

ES-24 08-03-00 1728 .41 25.75* 1702.66

ES-25 08-01-00 1737 .51 DRY ---

ES-26 08-03-00 1748 .01 32.40* 1715.61 (P)

ES-27 08-03-00 1740 .60 32.48* 1708.12

ES-28 08-01-00 1759.44 9.45 1749.99

ES-29 08-01-00 1760.75 9.96 1750.79

ES-30 08-03-00 1759 .41 20.03* 1739.38 (P)

ES-31 08-01-00 1787 .01 13 .03 1773.98

ES-32 08-03-00 1740.47 18.97* 1721 .50

HAR-2 08-02-00 1886.38 DRY -- -

HAR-3 08-02-00 1875.48 29.25 1846.23

HAR-4 08-02-00 1873 .40 25 .68* 1847 .72

HAR-9 08-03-00 1821 .31 10.78 1810.53

HAR-11 08-03-00 1828.34 11 .10 1817.24

HAR-12 08-02-00 1796.73 9 .39 1787.34

HAR-13 08-02-00 1801 .18 13.03 1788.1 5

HAR-14 08-02-00 1797.02 10.20 1786.82

HAR-15 08-02-00 1809.69 8 .47 1801 .22

HAR-27 08-02-00 1720.00 25.37 1694.63

HAR-28 08-02-00 1720.17 24.87 1695 .30

HAR-29 08-02-00 1724 .13 26.06 1698.07

HAR-30 08-02-00 1806 .47 8 .98 1797.49

HAR-31 08-02-00 1812.45 11 .48 1800 .97

HAR-32 08-01-00 1735 .31 18.30 1717.0 1

HAR-33 08-01-00 1744 .66 18.50 1726 .1 6

HAR-34 08-01-00 1751 .67 14.11 1737.56

CHATSWORTH FORMATION WELL S

RD-1 08-02-00 1935 .89 299.65* 1636 .24 (P )

RD-2 08-02-00 1873 .92 225.05* 1648 .87 (P)


HDMSPOO140870

TABLE 5

SUMMARY OF WATER LEVEL DAT ATHIRD QUARTER 2000

WellIdentifier

Date o fMeasurement

Reference PointElevatio n

(feet above MSL)


Static Water LevelElevatio n

( feet above MSL )

RD-3 08-02-00 1743 .50 6 .12 1737 .38

RD-4 08-03-00 1883 .85 410.05* 1473 .80 (P )

RD-5A 08-01-00 1704.66 116 .23 1588 .43

RD-SB 08-01-00 1705 .89 72.03 1633 .86

RD-5C 08-01-00 1705 .25 65 .54 1639.7 1

RD-6 08-01-00 1617.21 41 .95 1575 .26

RD-7 08-01-00 1812.82 79 .10 1733.72

RD-8 08-03-00 1763.43 10 .20 1753.23

RD-9 08-02-00 1773.94 129 .49* 1644.45

RD-10 08-02-00 1904.43 224.13 1680.30

RD-11 08-03-00 1762.59 13 .07 1749.52

RD-12 08-03-00 1762.55 17.89 1744.66

RD-13 08-01-00 1840.27 48 .31 1791 .96

RD-14 08-02-00 1824 .29 62.80 1761 .49

RD-15 08-02-00 1817 .70 49 .24 1768 .46

RD-16 08-02-00 1808 .99 45 .25 1763 .74

RD-17 08-01-00 1836 .30. 20 .07 1816 .23

RD-18 08-02-00 1839 .49 76 .87 1762 .62

RD-19 08-02-00 1853.13 73 .86 1779 .2 7

RD-20 08-01-00 1819.72 37 .24 1782.48

RD-21 08-02-00 1866.96 87.13 1779.83

RD-22 08-02-00 1853 .41 305.58 1547.83

RD-23 08-02-00 1836.37 UTM ---

RD-24 08-02-00 1809.93 114.28* 1695 .65 (P)

RD-25 08-02-00 1810.76 137.50* 1673 .26

RD-26 08-03-00 1880.39 104 .28 1776 .1 1

RD-27 08-04-00 1841 .67 51 .25 1790 .42

RD-28 08-02-00 1810 .92 123.18* 1687 .74

RD-29 08-01-00 1806 .29 13 .56 1792 .73

RD-30 08-02-00 1768 .69 22.20 1746 .49

RD-31 08-01-00 1945 .02 114 .35 1830 .67

RD-32 08-01-00 1808 .47 28 .28 1780.19

1

Haley & Aldrich, Inc. 26472/73/M419 4 '

HDMSP00140871

TABLE 5

SUMINIARY OF WATER LEVEL DATATHIRD QUARTER 200 0

Well

IdentifierDate o f

Measurement


(feet above MSL)


Static Water Leve lElevation

(feet above MSL)

RD-33A 08-02-00 1792 .97 205.59 1587.38RD-33B 08-02-00 1793 .21 293 .37 1499.84

RD-33C 08-02-00 1793 .54 293 .26 1500.28

RD-34A 08-02-00 1761 .83 49.95 1711 .88

RD-34B 08-02-00 1762 .51 60.10 1702 .4 1RD-34C 08-02-00 1762.60 15 .95 1746 .65

RD-35A 08-02-00 1906.68 73 .08 1833 .60

RD-35B 08-02-00 1905.65 74 .52 1831 .13

RD-36A 08-01-00 1913 .09 88 .04 1825.05

RD-36B 08-01-00 1915 .26 128.45 1786.8 1

RD-36C 08-01-00 1913 .82 198.38 1715.44

RD-36D 08-01-00 1920 .08 361 .56 1558.52

RD-37 08-01-00 1870 .01 332.94 1537 .07RD-38A 08-01-00 1878 .92 95.85 1783 .07

RD-38B 08-01-00 1881 .45 324 .19 1557 .26

RD-39A 08-01-00 1960 .23 136 .04 1824 .19

RD-39B 08-01-00 1959.48 287 .22 1672 .26

RD-40 08-02-00 1972.02 284 .86 1687 .16

RD-41A 08-02-00 1773 .09 53 .87 1719 .22

RD-41B 08-02-00 1774.32 129.43 1644.89

RD-41C 08-02-00 1773 .33 167 .73 1605 .60RD-42 08-02-00 1945 .46 48.31 1897.1 5

RD-43A 08-01-00 1680 .16 55.63 1624.53

RD-43B 08-01-00 1680 .21 102.50 1577.7 1

RD-43C 08-01-00 1679 .31 100.03 1579.28

RD-44 08-02-00 2035 .92 421 .48 1614.44

RD-45A 08-02-00 1837.66 363 .37 1474.29

RD-45B 08-02-00 1840.09 366.29 1473 .80

RD-45C 08-01-00 1835.74 457.21 1378 .53

RD-46A 08-02-00 1805.80 67.61 1738 .1 9

RD-46B 08-02-00 1807.19 61 .72 1745 .47RD-47 08-03-00 2045.72 569.43 1476 .29 11

Haley & Aldrich, Inc . 26472173/M419 5

HDMSP00140872

TABLE 5

SUMMARY OF WATER LEVEL DATATHIRD QUARTER 200 0

WellIdentifier

Date ofMeasurement

Reference PointElevatio n

(feet above MSL)

Depth to Water( feet )


(feet above MSL )

RD-48A 08-02-00 1736.54 61 .99 1674 .55RD-48B 08-02-00 1735 .40 133 .36 1602 .04RD-48C 08-02-00 1734 .95 182 .08 1552 .87

RD-49A 08-03-00 1867 .11 16 .96 1850 .15

RD-49B 08-03-00 1867 .74 280.39 1587 .35

RD-49C 08-03-00 1869.22 362.49 1506 .73

RD-SO 08-01-00 1914.88 103.78 1811 .10

RD-51A 08-02-00 1832.51 250.56 1581 .95

RD-51B 08-02-00 1832.68 324.30 1508 .38

RD-SiC 08-02-00 1831 .65 345 .62 1486.03

RD-52A 08-02-00 1755 .09 127.24 1627.85

RD-52B 08-02-00 1712 .15 228 .76 1483.39

RD-52C 08-02-00 1712 .83 229 .31 1483.52

RD-53 08-01-00 1909 .19 125 .92 1783.27

RD-54A 08-02-00 1834 .99 UTM ---

RD-54B 08-02-00 1835 .48 UTM ---

RD-54C 08-02-00 1834.58 UTM ---

RD-55A 08-01-00 1756.70 19.57 1737.13

RD-55B 08-01-00 1757.19 49.18 1708 .0 1

RD-56A 08-02-00 1758.62 324.17 1434 .45

RD-56B 08-02-00 1761 .83 253 .22 1508 .6 1

RD-57 08-02-00 1774.15 355 .26 1418 .89

RD-58A 08-01-00 1756 .11 82.91 1673.20

RD-58B 08-01-00 1761 .34 112 .19 1649.1 5

RD-58C 08-01-00 1759 .59 132 .60 1626.99

RD-59A 08-10-00 1340 .50 27 .14 1313.36

RD-59B 08-10-00 1342 .49 -21 .61 1364.10(A)

RD-59C 08-10-00 1345 .41 -19 .30 1364 .71(A )

RD-60 08-02-00 1870 .40 83 .03 1787.37

RD-61 08-02-00 1843.88 101 .54 1742.34

RD-62 08-02-00 1837.20 206.00 1631 .20

RD-63 08-02-00 1764.85 63 .41* 1701 .44(P)

1

Haley & Aldrich, Inc. 26472/73/1419 6

HDMSP00140873

TABLE 5

SUMMARY OF WATER LEVEL DATATHIRD QUARTER 200 0

Wel lIdentifier

Date o fMeasurement


(feet above MSL)



(feet above MSL)

RD-64 08-02-00 1852.40 UTM -- -

RD-65 08-02-00 1819.14 227.17 1591 .97

RD-66 08-01-00 1730.79 172.66 1558 .13

RD-67 08-01-00 1901 .71 58 .40 1843.3 1

RD-68A 08-10-00 1307 .64 0.00 1307 .64 (A)

RD-68B 08-10-00 1312.44 0.00 1312.44 (A )

RD-69 08-02-00 1831 .28 50.42 1780.86

RD-70 08-15-00 1732.26 224.42 1507.84

RD-71 08-01-00 1740.02 182.44 1557.58

RD-72 08-01-00 1907 .25 79.72 1827.53

RD-73 08-02-00 1901 .60 67.78 1833 .82

RD-74 08-01-00 1810 .90 64.50 1746.40

HAR-1 08-02-00 1874 .13 45 .81 1828.32

HAR-5 08-02-00 1812 .65 16.13 1796.52

HAR-6 08-02-00 1815.03 13 .77 1801 .26

HAR-7 08-01-00 1728.38 81 .06* 1647 .32

HAR-8 08-02-00 1730.75 49.40 1681 .35

HAR-16 08-23-00 1872.31 42 .00 1830 .3 1

HAR-17 08-03-00 1711 .59 79.82* 1631 .77

HAR-18 08-03-00 1749.41 64.05* 1685 .36 (P)

HAR-19 08-03-00 1833 .46 DRY -- -

HAR-20 08-03-00 1830.60 209.46 1621 .14

HAR-21 08-03-00 1821 .30 7.70 1813.60

HAR-22 08-02-00 1816.41 25.37 1791 .04

HAR-23 08-02-00 1805 .87 16.54 1789.3 3

HAR-24 08-02-00 1906.89 75.84 1831 .05

HAR-25 08-02-00 1889.75 55.92 1833.83

HAR-26 08-03-00 1763 .17 17.87 1745.30

WS-4A 08-02-00 1749.77 259.82 1489.95

WS-5 08-02-00 1830 .20 452.34* 1377 .86 (P )

WS-6 08-03-00 1932.72 453 .25* 1479 .47 (P )

WS-7 08-02-00 1826 .19 59.36 1766 .8 3


HDMSP00140874

TABLE 5

SUMMARY OF WATER LEVEL DATATHIRD QUARTER 2000

We llIdentifier

Date o f

Measurement


(feet above MSL)

Depth to Water(feet )


(feet above MSL )

WS-8 08-02-00 1794.39 189.83 1604.56

WS-9 08-03-00 1883.99 407 .22* 1476.77

WS-9A 08-03-00 1647.61 94 .05* 1553.56 (P)

WS-9B 08-02-00 1796.89 169.68 1627.2 1

WS-11 08-01-00 1748.70 45.67 1703 .03

WS-12 08-02-00 1705.98 222.26 1483 .72

WS-13 08-02-00 1658 .62 174.49 1484 .1 3

WS-14 08-01-00 1878 .23 370.05 1508 .1 8

WS-SP 08-02-00 1766 .70 55 .11 1711 .59

OS-24 08-01-00 1947 .30 283.71 1663 .59

OS-25 08-01-00 2043.58 DRY -- -

OS-26 08-01-00 2080.58 204.90 1875 .68

(*)

(A)

(P)

MSL

UTM

(---)

Water level measured by EnviroSolve Corporation

Artesian

Pumping water level

Mean Sea Level

Unable to measur e

No data available/not applicabl e

A negative value in the Depth to Water column indicates the head above the reference point elevation .

Haley & Aldrich , Inc . 26472/73/MI419 8

HDMSP00140875

t

TABLE 6SUMMARY OF RESULTS FOR EPA PRIORITY VOLATILE ORGANIC COMPOUNDS

IN SHALLOW ZONE WELLS AND THE ECL FRENCH-DRA IN, THIRD QUARTER 2000

RS -30 RS-31 RS -32 ES-3 ES-3 2Organic Compound (µg/1)

08-06-00 08 -06-00 08-06-00* 08-06 -00 08 -11-00 08-11-0 0Shallow Zone Wells

1,1,1-Trichloroethane -0 .38 -0 .38 -0 .38 -0 .38 -0 .38 1 . 31,1,2,2-Tetrachloroeth ane -0 .099 -0 .099 -0 .099 -0 .099 -0 .099 -0 .0991,1,2-Trichloroethane -0.27 -0.27 -0.27 -0.27 -0.27 0 .8

1,1-Dichloroethane -0 .35 -0 .35 -0 .35 -0 .35 -0 .35 3 . 11,1-Dichloroethene -0.34 -0.34 -0 .34 -0 .34 0.7 571,2-Dichlorobenzene -0.12 -0.12 -0 .12 -0 .12 -0.12 -0 .121,2-Dichloroethane -0 .32 -0 .32 -0 .32 -0 .32 -0 .32 -0 .32

1,2-Dichloro ro ane -0 .29 -0 .29 -0 .29 -0 .29 -0 .29 -0 .291,3-Dichlorobenzene -0.18 -0.18 -0 .18 -0.18 -0.18 -0 .181,4-Dichlorobenzene -0.29 -0.29 -0 .29 -0 .29 -0.29 -0.291,4-Diox ane -2.0 -2.0 -2.0 -2.0 -2.0 -2 .02-Chloroeth lvin l Ether -0 .86 -0 .86 -0 .86 -0 .86 -0 .86 -0 .862-Hexanone -0 .85 -0.85 -0 .85 -0 .85 -0.85 -0.85Acetone -4 .2 -4.2 -4.2 -4.2 -4.2 15

Benzene 2.4 -0.18 -0 .18 -0 .18 -0.18 -0.1 8

Bromodichloromethane -0 .32 -0 .32 -0 .32 -0 .32 -0 .32 -0 .32Bromoform -0 .30 -0 .30 -0 .30 -0.30 -0.30 -0 .30Bromomethane -0 .36 -0 .36 -0 .36 -0.36 -0 .36 -0 .3 6Carbon Disulfide 0.42J -0 .26 -0 .26 -0 .26 -0 .26 -0 .26Carbon Tetrachloride -0 .49 -0 .49 -0 .49 -0 .49 -0 .49 -0 .49Chlorobenzene -0 .31 -0 .31 -0 .31 -0 .31 -0 .31 -0 .3 1Chloroethane -0 .21 -0 .21 -0 .21 -0 .21 -0.21 -0 .2 1Chloroform -0.28 -0 .28 -0 .28 -0 .28 -0.28 1Chloromethane -0 .30 -0 .30 -0 .30 -0 .30 -0.30 -0 .30cis-1,2-Dichloroethene -0 .18 -0 .18 -0 .18 1 .8 120 160

cis- 1,3-Dichloro ro ene -0 .37 -0 .37 -0 .37 -0 .37 -0.37 -0 .37

Dibromochloromethane -0.24 -0 .24 -0.24 -0.24 -0.24 -0.24Ethylbenzene 68 -0 .18 -0.18 -0.18 -0.18 -0 .1 82-Butanone (MEK) -1 .2 -1 .2 -1 .2 -1 .2 -1 .2 -1 . 24-Methyl-2-Pentanone (MIBK) -1 .2 -1 .2 -1 .2 -1 .2 -1 .2 -1 . 2Methylene Chloride 0.37J -0.27 -0.27 -0.27 -0.27 -0 .27

Tetrachloroethee -0 .086 -0.086 -0.086 -0.086 -0 .086 0 .5Toluene -0 .22 -0 .22 -0 .22 -0 .22 -0 .22 -0 .2 2

trans-1,2-Dichloroethene -0 .20 -0 .20 -0 .20 -0 .20 19 4.9

trans- 1,3-Dichloro roene -0 .45 -0 .45 -0 .45 -0 .45 -0 .45 -0 .4 5

Trichloroethene -0.27 -0.27 -0.27 -0.27 160 850

Trichlorofluoromethane -0.23 -0.23 -0.23 -0.23 -0.23 -0.23Trichlorotrifluoroethane -0 .27 -0 .27 -0 .27 -0 .27 -0 .27 -0 .27

Vinyl Chloride -0 .25 -0.25 -0.25 -0.25 4.4 1 .4

Xylenes (m + p) -0 .30 -0 .30 -0.30 -0 .30 -0 .30 -0 .30X lens (ortho) -0 .13 -0 .13 -0 .13 -0.13 -0 .13 -0 .1 3Method 8260 8260 8260 8260 8260 8260

Laboratory Babcock Babcock Babcock Babcock Babcock Babcock

See last page of Table 6 for footnotes and explanations .Haley & Aldrich, Inc . 26472/73/M419

1

HDMSPOO140876

TABLE 6

FOOTNOTES AND EXPLANATION S

Babcock = E.S. Babcock & Sons of Riverside, California .

() = Less than; numerical value represents the Detection Limit for that compound .

(*) = Sample duplicate .

(µg/l) = Micrograms per liter .

(---) = Analysis not performed.

J Trace result (less than Practical Quantitation Limit , greater than MethodDetection Limit) . Value estimated

1

1

1


2

HDMSP00140877

TABLE 7SUNLMIARY OF RESULTS FOR EPA PRIORITY VOLATILE ORGANIC COMPOUNDS

IN CHATSWORTH FORMATION WELLS, THIRD QUARTER 2000

O i C d /1RD -5A RD -5B RD-5C RD-6 RD-7rgan c ompoun (µg )

08-10-00 08 -11-00 08-11-00 08-08-00 08 -10-00 08-10-00*Chatsworth Formation Wells

1 .1,1-Trichloroethane -0 .38 -0 .38 -0 .38 -0 .38 -0 .38 -0 .381 .1,2,2-Tetrachloroethane -0 .099 -0 .099 -0 .099 -0 .099 -0 .099 -0 .0991,1,2-Trichloroeth ane -0 .27 -0 .27 -0 .27 -0 .27 -0 .27 -0 .271,1-Dichloroeth ane -0 .35 -0 .35 -0 .35 -0 .35 -0 .35 -0 .351,1-Dichloroethene -0 .34 -0 .34 -0 .34 -0 .34 -0 .34 -0 .341,2-Dichlorobenzene -0.12 -0.12 -0.12 -0.12 -0.12 -0.12

1 .2-Dichloroeth ane -0 .32 -0 .32 -0 .32 -0 .32 -0 .32 -0 .321,2-Dichloro ro ane -0 .29 -0 .29 -0 .29 -0 .29 -0 .29 -0 .291,3-Dichlorobenzene -0 .18 -0.18 -0.18 -0.18 -0.18 -0 .1 81,4-Dichlorobenzene -0 .29 -0 .29 -0 .29 -0 .29 -0 .29 -0 .291,4-Diox ane -2.0 -2 .0 -2.0 -2.0 -2.0 -2 .02-Chloroeth lvin l Ether -0 .86 -0.86 -0.86 -0.86 -0.86 -0.862-Hexanone -0 .85 -0.85 -0.85 -0.85 -0.85 -0.85Acetone -4 .2 -4.2 -4.2 -4.2 -4 .2 -4 .2Benzene -0 .18 -0.18 -0.18 -0 . 18 -0.18 -0 .1 8Bromodichloromethane -0 .32 -0 .32 -0 .32 -0 .32 -0 .32 -0 .32Bromoform -0 .30 -0 .30 -0 .30 -0 .30 -0 .30 -0 .30Bromomethane -0 .36 -0 .36 -0 .36 -0 .36 -0 .36 -0 .36Carbon Disulfide 0.28J -0 .26 -0 .26 -0 .26 -0 .26 -0 .26Carbon Tetrachloride -0 .49 -0 .49 -0 .49 -0 .49 -0 .49 -0 .49Chlorobenzene -0 .31 -0 .31 -0 .31 -0 .31 -0 .31 -0 .3 1Chloroethane -0 .21 -0 .21 -0 .21 -0 .21 -0 .21 -0 .2 1Chloroform -0 .28 -0 .28 -0 .28 -0 .28 -0 .28 -0 .28Chloromethane -0 .30 -0 .30 -0 .30 -0 .30 -0 .30 -0 .30cis-1,2-Dichloroethene - 0 .18 -0 .18 -0 .18 -0 .18 3.6 3 . 7cis-1,3-Dichloro ro ene -0 .37 -0 .37 -0 .37 -0 .37 -0 .37 -0 .37Dibromochloromethane -0 .24 -0 .24 -0 .24 -0 .24 -0 .24 -0 .24Eth lbenzene -0 .18 -0.18 -0.18 -0.18 -0.18 -0 .1 82-Butanone (MEK) -1 .2 -1 .2 -1 .2 -1 .2 -1 .2 -1 . 24-Meth l-2-Pentanone (MIBK) -1 .2 -1 .2 -1 .2 -1 .2 -1 .2 -1 . 2Methylene Chloride -0 .27 -0 .27 -0 .27 -0 .27 -0 .27 -0 .27Tetrachloroethene -0 .086 -0 .086 -0 .086 -0 .086 -0 .086 -0 .086Toluene -0 .22 -0 .22 -0 .22 -0 .22 -0 .22 -0 .22tr ans-l,2-Dichloroethene -0 .20 -0 .20 -0 .20 -0 .20 -0 .20 -0 .20trans-1,3-Dichloropropene -0 .45 -0 .45 -0 .45 -0 .45 -0 .45 -0 .45Trichloroethene -0 .27 -0 .27 -0 .27 -0 .27 65 64Trichlorofluorometh ane -0 .23 -0 .23 -0 .23 -0 .23 -0 .23 -0 .23Trichlorotri fluoroethane -0 .27 -0 .27 -0 .27 -0 .27 -0 .27 -0 .27Vinyl Chloride -0 .25 -0 .25 -0 .25 -0 .25 -0 .25 -0 .25Xylenes (m + p) -0 .30 -0 .30 -0 .30 -0 .30 -0 .30 -0 .30X lenes (ortho) -0.13 -0.13 -0.13 -0.13 -0.13 -0.1 3

Method 8260 8260 8260 8260 8260 8260Laboratory Babcock Babcock Babcock Babcock Babcock Babcock

See last page of Table 7 for footnotes and explanations .Haley & Aldrich, Inc . 26472/73IM419 1

HDMSP00140878

TABLE 7SUMMARY OF RESULTS FOR EPA PRIORITY VOLATILE ORGANIC COMPOUND S

IN CHATSWORTH FORMATION WELLS, THIRD QUARTER 200 0

O i C d /1RD -10 RD-13 RD-16 RD-18 RD -19 RD-22rgan c ompoun (µg )

08-09-00 08-05-00 08-16 - 00 08 -08-00 08 -08-00 08-10-00Chatsworth Formation Wells1,1,1-Trichloroeth ane -0 .38 -0 .38 -0 .38 -0 .38 -0 .38 -0 .381,1,2,2-Tetrachloroeth ane -0 .099 -0 .099 -0 .099 -0 .099 -0 .099 -0 .0991,1,2-Trichloroethane -0.27 -0.27 -0.27 -0 .27 -0.27 -0 .271,1-Dichloroethane -0 .35 -0 .35 -0 .35 -0 .35 -0 .35 -0 .351, 1 -Dichloroethene -0.34 -0 .34 -0 .34 -0 .34 -0 .34 -0 .341,2-Dichlorobenzene -0.12 -0.12 -0.12 -0 .12 -0.12 -0.1 21,2-Dichloroethane -0 .32 -0 .32 -0 .32 -0 .32 -0 .32 -0 .321,2-Dichloro ro ane -0 .29 -0 .29 -0 .29 -0 .29 -0 .29 -0 .291,3-Dichlorobenzene -0 .18 -0.18 -0.18 -0 .18 -0.18 -0 .1 81,4-Dichlorobenzene -0 .29 -0.29 -0 .29 -0 .29 -0 .29 -0 .291,4-Diox ane -2.0 -2.0 -2 .0 -2 .0 -2.0 -2 .02-Chloroeth lvin l Ether -0 .86 -0.86 -0 .86 -0 .86 -0 .86 -0 .862-Hexanone -0 .85 -0 .85 -0 .85 -0 .85 -0.85 -0 .85Acetone -4.2 -4.2 -4 .2 -4.2 -4 .2 -4 .2Benzene -0.18 -0 .18 -0.18 -0 . 18 -0.18 -0 .18Bromodichloromethane -0 .32 -0 .32 -0 .32 -0.32 -0 .32 -0 .32Bromoform -0.30 -0 .30 -0 .30 -0.30 -0 .30 -0 .30Bromomethan e -0 .36 -0 .36 -0 .36 -0 .36 -0 .36 -0 .36Carbon Disulfide -0 .26 -0 .26 -0 .26 -0 .26 -0 . 26 0.28JCarbon Tetrachloride -0.49 -0 .49 -0.49 -0.49 -0 .49 -0.49Chlorobenzene -0 .31 -0 .31 -0 .31 -0 .31 -0 .31 -0 .3 1Chloroethane -0 .21 -0 .21 -0 .21 -0 .21 -0 .21 -0 .2 1Chloroform -0.28 -0 .28 -0 .28 -0 .28 -0 .28 -0 .28Chloromethane -0 .30 -0 .30 -0 .30 -0 .30 -0 .30 -0 .30cis-1,2-Dichloroethene 6.6 -0.18 -0.18 -0.18 -0 .18 -0.18

cis- 1,3-Dichloro ro ene -0 .37 -0 .37 -0 .37 -0 .37 -0 .37 -0 .37Dibromochloromethane -0 .24 -0 .24 -0 .24 -0 .24 -0 .24 -0 .24Ethylbenzene -0.18 -0.18 -0.18 -0.18 -0 .18 -0.182-But anone (MEK) -1 .2 -1 .2 -1 .2 -1 .2 -1 .2 -1 . 24-Methyl-2-Pentanone (MIBK) -1 .2 -1 .2 -1 .2 -1 .2 -1 .2 -1 . 2Methylene Chloride -0.27 -0.27 -0.27 -0.27 0.39J -0.27Tetrachloroethee -0.086 -0.086 -0.086 -0.086 -0.086 -0 .086Toluene -0 .22 -0 .22 -0 .22 -0 .22 -0 .22 -0 .22trans-1,2-Dichloroethene 1 .1 -0 .20 -0 .20 -0 .20 -0 .20 -0 .20trans- 1,3-Dichloro roene -0 .45 -0 .45 -0 .45 -0 .45 -0 .45 -0 .45Trichloroethene 5 .5 -0.27 -0.27 -0.27 -0.27 -0.27Trichlorofluorometh ane -0 .23 -0 .23 -0 .23 -0 .23 -0 .23 -0 .23Trichlorotrifluoroethane -0 .27 -0 .27 -0 .27 -0 .27 -0 .27 -0 .27Vinyl Chloride -0.25 -0.25 -0.25 -0.25 -0.25 -0.25Xylenes (m + p) -0 .30 -0 .30 -0 .30 -0 .30 -0 .30 -0 .30X lenes (ortho) -0.13 -0.13 -0.13 -0.13 -0.13 -0 .1 3Method 8260 8260 8260 8260 8260 8260Laboratory Babcock Babcock Babcock Babcock Babcock Babcock


1

1

t

HDMSP00140879



O i C d ( /1RD -24 RD-25 RD-27 RD -28 RD-3 0rgan c ompoun µg )

08-04-00 08.09 01 ' 08-04 -00 08 -09-00 08-09 -00* 08-08-00Chatsworth Formation Wells

1,1,1-Trichloroethane -0 .38 -0 .38 -0 .38 -0 .38 -0 .38 -0 .381, 1, 2,2-Tetrachloroethane -0.099 -0.099 -0 .099 -0.099 -0.099 -0.0991,1,2-Trichloroeth ane -0 .27 -0 .27 -0.27 -0 .27 -0 .27 -0 .271,1-Dichloroethane -0 .35 -0 .35 -0 .35 -0 .35 -0 .35 -0 .351,1-Dichloroethene -0 .34 -0 .34 -0 .34 -0 .34 -0 .34 0 .43J1,2-Dichlorobenzene -0.12 -0 .12 -0.12 -0.12 -0 .12 -0 .121,2-Dichloroeth ane -0 .32 -0 .32 -0.32 -0 .32 -0 .32 -0 .321,2-Dichloro ro ane -0 .29 -0 .29 -0.29 -0 .29 -0 .29 -0 .291,3-Dichlorobenzene -0.18 -0 .18 -0.18 -0.18 -0 .18 -0 .181,4-Dichlorobenzene -0.29 -0.29 -0.29 -0.29 -0 .29 -0.291,4-Diox ane -2 .0 -2 .0 -2 .0 -2 .0 -2 .0 -2 .02-Chloroeth lvin l Ether -0.86 -0 .86 -0.86 -0.86 -0 .86 -0.862-Hexanone -0.85 -0 .85 -0.85 -0.85 -0 .85 -0.85Acetone -4.2 -4 .2 -4.2 -4 .2 -4.2 -4 .2

Benzene -0.18 -0 .18 -0.18 -0 . 18 -0 .18 -0 .18Bromodichloromethane -0 .32 -0 .32 -0.32 -0 .32 -0 .32 -0 .32Bromoform -0.30 -0 .30 -0.30 -0 .30 -0 .30 -0 .30Bromomethane -0 .36 -0 .36 -0.36 -0 .36 -0 .36 -0 .36Carbon Disulfide -0 .26 -0 .26 -0.26 -0 .26 -0 .26 -0 .26Carbon Tetrachloride -0 .49 -0 .49 -0 .49 -0 .49 -0 .49 -0 .49Chlorobenzene -0 .31 -0 .31 -0 .31 -0 .31 -0 .31 -0 .3 1Chloroethane -0 .21 -0 .21 -0 .21 -0 .21 -0 .21 -0 .2 1Chloroform -0.28 -0 .28 -0 .28 -0 .28 -0 .28 -0 .28Chloromethane -0 .30 -0 .30 -0.30 -0 .30 -0 .30 -0 .30cis-1,2-Dichloroethene -0 .18 0.47J -0 .18 -0 .18 -0 .18 1 .3cis- 1,3-Dichloro ro ene -0 .37 -0 .37 -0 .37 -0 .37 -0 .37 -0 .37Dibromochloromethane -0.24 -0 .24 -0.24 -0.24 -0.24 -0 .24Ethylbenzene -0.18 -0 .18 -0.18 -0.18 -0.18 -0 .182-Butanone (MEK) -1 .2 -1 .2 -1 .2 -1 .2 -1 .2 -1 .24-Methyl-2-Pentanone (MIBK) -1 .2 -1 .2 -1 .2 -1 .2 -1 .2 -1 . 2Methylene Chloride -0 .27 -0 .27 -0 .27 -0 .27 -0 .27 -0 .27Tetrachloroethene 0.9 6 .9 -0 .086 0 .25J 0 .24J 0.48JToluene -0 .22 -0 .22 -0 .22 -0 .22 -0 .22 -0 .22trans-1,2-Dichloroethene -0 .20 -0 .20 -0 .20 -0 .20 -0 .20 -0 .20trans- 1,3-Dichloro roene -0.45 -0 .45 -0 .45 -0 .45 -0 .45 -0 .45Trichloroethene -0.27 0.6 -0.27 -0.27 -0.27 12Trichlorofluorometh ane -0 .23 -0 .23 -0 .23 -0 .23 -0 .23 -0 .23Trichlorotrifluoroethane -0 .27 -0 .27 -0 .27 -0 .27 -0 .27 -0 .27

-Vinyl Chloride -0 .25 -0 .25 -0 .25 -0 .25 -0 .25 -0 .25Xylenes (m + p) -0 .30 -0 .30 -0.30 -0 .30 -0 .30 -0 .30X lens (ortho) -0 .13 -0 .13 -0 .13 -0 .13 -0 .13 -0 .13Method 8260 8260 8260 8260 8260 8260Laboratory Babcock Babcock Babcock Babcock Babcock Babcock


HDMSPOO140880



Or anic C d ( /1)RD-32 RD-33A RD-33B RD-33C RD-34Ag µgompoun

08-03-00 08 -09-00 08 -09-00 08 -09-00 08 -09-00** 08-29-00Chatsworth Formation Wells

1,1,1-Trichloroeth ane -0 .38 -0 .38 -0 .38 -0 .38 -0 .50 -0 .3 81,1,2,2-Tetrachloroeth ane -0 .099 -0 .099 -0 .099 -0 .099 -0 .50 -0 .0991,1,2-Trichloroethane -0 .27 -0 .27 -0.27 -0.27 -0 .50 -0.271,1-Dichloroethane -0 .35 0.6 -0 .35 -0 .35 -0 .50 -0 .351,1-Dichloroethene -0 .34 1 .3 -0 .34 -0 .34 -0 .50 0 . 81,2-Dichlorobenzene -0 .12 -0 .12 -0.12 -0.12 -0 .50 -0.1 2

1,2-Dichloroethane -0 .32 -0 .32 -0 .32 -0 .32 -0 .50 -0 .321,2-Dichloro ro ane -0.29 -0 .29 -0 .29 -0.29 -0 .50 -0.291,3-Dichlorobenzene -0.18 -0 .18 -0.18 -0.18 -0 .50 -0 .1 81,4-Dichlorobenzene -0.29 -0.29 -0.29 -0.29 -0 .50 -0.291,4-Dioxane -2 .0 -2 .0 -2 .0 -2 .0 --- -2 . 02-Chloroeth lvin l Ether -0 .86 -0 .86 -0 .86 -0 .86 -5 .0 -0 .862-Hexanone -0 .85 -0 .85 -0 .85 -0 .85 -2 .5 -0 .85Acetone -4.2 -4.2 -4.2 -4 .2 -10 5.7,W

Benzene -0.18 -0.18 -0.18 -0.18 -0 .50 0 . 30J-t 'Bromodichloromethane -0 .32 -0 .32 -0 .32 -0 .32 -0 .50 -0 .32Bromoform -0.30 -0.30 -0 .30 -0 .30 -0 .50 -0 .30Bromomethane -0 .36 -0 .36 -0 .36 -0 .36 -0 .50 -0 .36Carbon Disulfide -0.26 -0.26 -0.26 -0.26 -0.50 -0 .26Carbon Tetrachloride -0 .49 -0 .49 -0 .49 -0 .49 -0 .50 -0 .49Chlorobenzene -0 .31 -0 .31 -0 .31 -0 .31 -0 .50 -0 .3 1Chloroethane -0 .21 -0 .21 -0 .21 -0 .21 -0 .50 -0 .2 1Chloroform -0.28 -0 .28 -0 .28 -0 .28 -0 .50 -0 .28Chloromethane -0 .30 -0 .30 -0 .30 -0 .30 -1 .0 -0 .30cis-1,2-Dichloroethene -0 .18 0.6 -0 .18 -0 .18 -0 .50 0 .7cis- 1,3-Dichloro ro ene -0 .37 -0 .37 -0 .37 -0 .37 -0 .50 -0 .37Dibromochloromethane -0 .24 -0 .24 -0 .24 -0 .24 -0 .50 -0 .24Eth lbenzene -0.18 -0.18 -0.18 -0 .18 -0.50 -0 .1 82-But anone (MEK) -1 .2 -1 .2 -1 .2 -1 .2 -5 .0 -1 .24-Methyl-2-Pentanone (MIBK) -1 .2 -1 .2 -1 .2 -1 .2 -2 .5 -1 .2Methylene Chloride -0.27 -0 .27 -0 .27 -0 .27 -1 .0 -0 .27Tetrachloroethee -0.086 -0 .086 -0 .086 -0 .086 -0 .50 -0 .086Toluene -0.22 -0 .22 -0 .22 -0 .22 -0 .50 -0 .22trans-1,2-Dichloroethene -0 .20 -0 .20 -0 .20 -0 .20 -0 .50 -0 .20trans- 1,3-Dichloro roene -0 .45 -0 .45 -0 .45 -0 .45 -0 .50 -0 .45Trichloroethee -0 .27 5.7 -0 .27 -0 .27 -0 .50 3 . 5Trichlorofluoromethane -0 .23 -0 .23 -0 .23 -0 .23 -0 .50 -0 .23Trichlorotrifluoroethane -0 .27 -0 .27 -0 .27 -0 .27 -1 .0 -0 .27Vinyl Chloride -0.25 0.25 -0 .25 -0 .25 -0 .50 -0 .25Xylenes (m + p) -0 .30 -0 .30 -0 .30 -0 .30 -0 .50 -0 .30X lenes (o o) -0.13 -0.13 -0.13 -0.13 -0.50 -0 .13Method 8260 8260 8260 8260 8260 8260

Laboratory Babcock Babcock Babcock Babcock Al ha Babcock

See last page of Table 7 for footnotes and explanations .Haley & Aldrich, Inc . 26472173/M419 4

HDMSP00140881


IN CHATSWORTH FORMATION WELLS, THIRD QUARTER 200 0RD -34B RD-34C RD-36B RD -36C RD-36D

Organic Compound ( µg/1)08-08-00 08-0&10`-] 1,, 08-05-00 * 08-07-00 08-05-00

Chatsworth Formation Wells

1,1,1-Trichloroeth ane -0 .38 -0 .38 -0 .38 -0 .38 -0 .38 -0 .381,1,2,2-Tetrachloroethane -0 .099 -0 .099 -0 .099 -0 .099 -0 .099 -0 .0991,1, 2-Trichloroethane -0 .27 -0 .27 -0.27 -0 .27 -0 .27 -0 .271,1-Dichloroeth ane -0 .35 -0 .35 -0 .35 -0 .35 1 .0 -0 .351,1-Dichloroethene -0 .34 -0 .34 -0.34 -0 .34 2.9 -0 .341,2-Dichlorobenzene -0.12 -0.12 -0.12 -0.12 -0.12 -0 .121,2-Dichloroethane -0 .32 -0 .32 -0.32 -0 .32 -0 .32 -0 .321,2-Dichloro ro ane -0.29 -0.29 -0.29 -0.29 -0.29 -0.291,3-Dichlorobenzene -0.18 -0.18 -0 .18 -0.18 -0.18 -0 .1 81,4-Dichlorobenzene -0 .29 -0 .29 -0.29 -0 .29 -0 .29 -0 .291,4-Dioxane -2.0 -2.0 -2 .0 -2.0 -2.0 -2 . 02-Chloroeth lvin l Ether -0.86 -0.86 -0.86 -0.86 -0.86 -0.862-Hex anone -0 .85 -0 .85 -0 .85 -0 .85 -0 .85 -0 .85Acetone -4.2 -4.2 -4 .2 -4.2 -4.2 -4 . 2

Benzene -0.18 -0 .18 -0.18 -0.18 -0.18 -0.18Bromodichloromethane -0 .32 -0 .32 -0 .32 -0 .32 -0 .32 -0 .32Bromoform -0 .30 -0 .30 -0 .30 -0 .30 -0.30 -0 .30Bromomethane -0 .36 -0 .36 -0 .36 -0 .36 -0 .36 -0 .36Carbon Disulfide -0 .26 -0 .26 -0 .26 -0 .26 -0 .26 -0 .26Carbon Tetrachloride -0 .49 -0 .49 -0 .49 -0 .49 -0 .49 -0 .49Chlorobenzene -0 .31 -0 .31 -0 .31 -0 .31 -0 .31 -0 .3 1Chloroethane -0 .21 -0 .21 -0 .21 -0 .21 -0 .21 -0 .2 1Chloroform -0 .28 -0 .28 -0 .28 -0 .28 -0 .28 -0 .2 8Chloromethane -0 .30 -0 .30 -0 .30 -0 .30 -0 .30 -0 .30cis-1,2-Dichloroethene 0.40J -0.18 -0.18 -0.18 12 0.23Jcis-1,3-Dichloro ro ene -0 .37 -0 .37 -0 .37 -0 .37 -0 .37 -0 .37Dibromochloromethane -0 .24 -0 .24 -0 .24 -0 .24 -0 .24 -0 .24

Ethylbenzene -0.18 -0.18 -0.18 -0.18 -0 .18 -0 .182-Butanone (MEK) -1 .2 -1 .2 -1 .2 -1 .2 -1 .2 -1 .24-Methyl-2-Pentanone (MIBK) -1 .2 -1 .2 -1 .2 -1 .2 -1 .2 -1 . 2Methylene Chloride -0.27 -0.27 -0.27 -0.27 -0 .27 -0.27Tetrachloroethene -0 .086 -0 .086 0.36J 0.26J 1 .8 -0 .086Toluene -0 .22 -0 .22 -0 .22 -0 .22 -0 .22 -0 .22trans-1,2-Dichloroethene -0 .20 -0 .20 -0 .20 -0 .20 -0 .20 -0 .20

trans-1,3-Dichloro roene -0.45 -0 .45 -0 .45 -0 .45 -0 .45 -0 .45Trichloroethene 0.8 -0 .27 34 30 63 0.7Trichlorofluorometh ane -0 .23 -0 .23 -0 .23 -0 .23 -0 .23 -0 .23Trichlorotrifluoroethane -0 .27 -0 .27 -0 .27 -0 .27 -0 .27 -0 .27Vinyl Chloride -0 .25 -0 .25 -0 .25 -0 .25 -0 .25 -0 .2 5

Xylenes (m + p) -0 .30 -0 .30 -0 .30 -0 .30 -0 .30 -0 .30X lenes(ortho) -0 .13 -0.13 -0.13 -0.13 -0.13 -0 .13

Method 8260 8260 8260 8260 8260 8260 1


P See last page of Table 7 for footnotes and explanations .Haley & Aldrich, Inc . 26472/73/M419 5

HDMSPOO140882


IN CHATS WORTH FORMATION WELLS, THIRD QUARTER 2000

Or anic Com ound ( /1)RD -37 RD-38A RD-38B RD-39A RD-39Bg p µg08-05-00 08 -05-00 08-05-00 08 -05-00* 08 -03-00 08-03-00


1,1,1-Trichloroethane -0 .38 -0 .38 -0 .38 -0 .38 -0 .38 -0 .381,1,2,2-Tetrachloroeth ane -0 .099 -0 .099 -0 .099 -0 .099 -0 .099 -0 .0991,1,2-Trichloroethane -0 .27 -0.27 -0 .27 -0.27 -0.27 -0.271,1-Dichloroethane -0 .35 -0 .35 -0 .35 -0 .35 -0 .35 -0 .351,1-Dichloroethene -0 .34 30 -0 .34 -0 .34 -0 .34 -0 .341,2-Dichlorobenzene -0.12 -0 .12 -0 .12 -0.12 -0.12 -0 .121,2-Dichloroethane -0 .32 -0 .32 -0 .32 -0 .32 -0 .32 -0 .321,2-Dichloro ro ane -0 .29 -0 .29 -0 .29 -0 .29 -0 .29 -0 .291,3-Dichlorobenzene -0.18 -0 .18 -0.18 -0.18 -0.18 -0 .181,4-Dichlorobenzene -0.29 -0 .29 -0.29 -0.29 -0.29 -0.291,4-Dioxane -2 .0 -2 .0 -2 .0 -2 .0 -2 .0 -2 .02-Chloroeth lvin 1 Ether -0.86 -0.86 -0.86 -0 .86 -0.86 -0.862-Hexanone -0 .85 -0 .85 -0 .85 -0 .85 -0 .85 -0 .85Acetone -4.2 -4.2 -4.2 -4 .2 -4 .2 -4 .2Benzene -0.18 -0 . 18 -0.18 -0 .18 -0 .18 -0 .18Bromodichloromethane -0 .32 -0 .32 -0 .32 -0.32 -0.32 -0 .32Bromoform -0.30 -0 .30 -0 .30 -0.30 -0.30 -0 .30Bromomethane -0 .36 -0 .36 -0 .36 -0.36 -0.36 -0 .36Carbon Disulfide -0 .26 -0 .26 0.39J 0.33J -0.26 -0 .26Carbon Tetrachloride -0 .49 -0 .49 -0 .49 -0 .49 -0 .49 -0 .49Chlorobenzene -0 .31 -0 .31 -0 .31 -0 .31 -0 .31 -0 .3 1Chloroethane -0 .21 -0 .21 -0 .21 -0 .21 -0 .21 -0 .2 1Chloroform -0.28 -0 .28 -0 .28 -0 .28 -0 .28 -0 .28Chloromethane -0 .30 -0 .30 -0 .30 -0 .30 -0 .30 -0 .30cis-1,2-Dichloroethene -0.18 56 -0 .18 -0.18 -0.18 -0.1 8

cis-1,3-Dichloro ro ene -0 .37 -0 .37 -0 .37 -0 .37 -0 .37 -0 .37Dibromochloromethane -0.24 -0 .24 -0.24 -0.24 -0.24 -0.24Eth lbenzene -0.18 -0 .18 -0.18 -0.18 -0.18 -0 .1 82-But anone (MEK) -1 .2 -1 .2 -1 .2 -1 .2 -1 .2 -1 . 24-Methyl-2-Pentanone (MIBK) -1 .2 -1 .2 -1 .2 -1 .2 -1 .2 -1 . 2Methvlene Chloride -0 .27 -0 .27 -0 .27 -0 .27 -0 .27 -0 .27Tetrachloroethene -0.086 -0.086 -0.086 -0.086 -0.086 -0.086Toluene -0.22 -0.22 -0.22 -0 .22 -0 .22 -0.22trans- 1 ,2-Dichloroethene -0 .20 -0 .20 -0 .20 -0 .20 -0 .20 -0 .20trans-1, 3-Dichloro ro ene -0 .45 -0 .45 -0 .45 -0 .45 -0 .45 -0 .4 5Trichloroethene -0 .27 710 -0 .27 -0 .27 -0 .27 -0 .2 7Trichlorofluoromethane -0 .23 -0 .23 -0 .23 -0 .23 -0 .23 -0 .2 3Trichlorotrifluoroethane -0.27 -0.27 -0 .27 -0.27 -0 .27 -0.27Vinyl Chloride -0 .25 -0 .25 -0 .25 -0 .25 -0 .25 -0 .25X lenes (m + ) -0 .30 -0 .30 -0 .30 -0.30 -0 .30 -0 .30X lenes (ortho) -0.13 -0.13 -0 .13 -0.13 -0 .13 -0 .1 3Method 8260 8260 8260 8260 8260 8260



HDMSP00140883



O i CRD-39B RD-43A RD-43B RD-43C RD-44 RD-46A

rgan c ompound (µg11)08-03-00* * 08-04 .00-:4 08-04 -00 08 -04-00 08-15-00 08-04-00


1,1,1-Trichloroethane -0 .50 -0 .38 -0 .38 -0 .38 -0 .38 -0 .381,1,2,2-Tetrachloroethane -0.50 -0.099 -0 .099 -0.099 -0.099 -0.0991,1,2-Trichloroethane -0.50 -0.27 -0.27 -0.27 -0 .27 -0.27

1,1-Dichloroethane -0 .50 -0 .35 -0 .35 -0 .35 -0 .35 -0 .351,1-Dichloroethene -0 .50 -0 .34 -0 .34 -0 .34 -0 .34 -0 .341,2-Dichlorobenzene -0 .50 -0.12 -0.12 -0.12 -0 .12 -0 .121,2-Dichloroeth ane -0 .50 -0 .32 -0 .32 -0 .32 -0 .32 -0 .321,2-Dichloro ro ane -0 .50 -0 .29 -0 .29 -0 .29 -0 .29 -0 .291,3-Dichlorobenzene -0 .50 -0.18 -0.18 -0.18 -0 .18 -0 .181,4-Dichlorobenzene -0 .50 -0 .29 -0 .29 -0 .29 -0 .29 -0 .291,4-Diox ane --- -2 .0 -2 .0 -2 .0 -2 .0 -2 . 02-Chloroeth lvin l Ether -5.0 -0.86 -0.86 -0.86 -0 .86 -0.862-Hex anone -2 .5 -0 .85 -0 .85 -0 .85 -0 .85 -0 .85Acetone -10 -4.2 -4.2 -4 .2 -4.2 -4 .2Benzene -0 .50 -0.18 -0.18 -0.18 -0.18 -0 .1 8Bromodichloromethane -0 .50 -0 .32 -0 .32 -0 .32 -0 .32 -0 .32Bromoform -0 .50 -0 .30 -0.30 -0 .30 -0 .30 -0 .30Bromomethane -0 .50 -0 .36 -0 .36 -0 .36 -0 .36 -0 .36Carbon Disulfide -0 .50 0.27J -0 .26 -0 .26 -0 .26 15JCarbon Tetrachloride -0 .50 -0 .49 -0 .49 -0 .49 -0 .49 -0 .49

Chlorobenzene -0 .50 -0 .31 -0 .31 -0 .31 -0 .31 -0 .3 1Chloroethane -0 .50 -0 .21 -0 .21 -0 .21 -0 .21 -0 .2 1Chloroform -0 .50 -0 .28 -0 .28 -0 .28 -0 .28 -0 .28Chloromethane -1 .0 -0 .30 -0 .30 -0 .30 -0 .30 -0 .30cis-1,2-Dichloroethene -0 .50 -0 .18 -0 .18 -0 .18 -0 .18 49Jcis- 1,3-Dichloro ro ene -0 .50 -0 .37 -0 .37 -0 .37 -0 .37 -0 .37Dibromochloromethane -0 .50 -0 .24 -0 .24 -0 .24 -0 .24 -0 .24Ethylbenzene -0.50 -0.18 -0.18 -0.18 -0.18 -0 .1 82-Butanone (MEK) -5 .0 -1 .2 -1 .2 -1 .2 -1 .2 -1 . 24-Methyl-2-Pentanone (MIBK) -2 .5 -1 .2 -1 .2 -1 .2 -1 .2 -1 . 2

Methylene Chloride -1.0 -0.27 0.29J -0.27 -0.27 22JTetrachloroethee -0 .50 -0 .086 -0 .086 -0 .086 -0 .086 -0 .086Toluene -0 .50 -0 .22 -0 .22 -0 .22 -0 .22 -0 .2 2trans-1,2-Dichloroethene -0 .50 -0 .20 -0 .20 -0 .20 -0 .20 -0 .20

trans- 1,3-Dichloro roene -0.50 -0 .45 -0 .45 -0 .45 -0 .45 -0 .45Trichloroethee -0 .50 -0 .27 -0 .27 -0 .27 -0 .27 3400Trichlorofluorometh ane -0 .50 -0 .23 -0 .23 -0 .23 -0 .23 -0 .23Trichlorotritluoroethane -1 .0 -0 .27 -0 .27 -0 .27 -0 .27 -0 .27Vinyl Chloride -0 .50 -0 .25 -0 .25 -0 .25 -0 .25 -0 .2 5

Xylenes (m + p) -0 .50 -0 .30 -0 .30 -0.30 -0 .30 -0 .30Xylenes (ortho) -0.50 -0.13 -0.13 -0.13 -0.13 -0 .13Method 8260 8260 8260 8260 8260 8260Laboratory Alpha Babcock Babcock Babcock Babcock Babcock


HDMSPOO140884


IN CHATS WORTH FORMATION WELLS, THIRD QUARTER 200 0

C d ( /1 RD-46B RD-48A RD-48Bompoun µg )08-04-00 08 -04-00 * 08-07-00 08-08-00 08 -08-00* 08 -08-00**

Chatsworth Formation Wells1,1,1-Trichioroethane -0 .38 -0 .38 -0 .38 -0 .38 -0 .38 -0 .501,1,2,2-Tetrachloroethane -0 .099 -0 .099 -0 .099 -0 .099 -0 .099 -0 .501,1,2-Trichloroethan e -0 .27 -0 .27 -0 .27 -0 .27 -0 .27 -0 .501,1-Dichloroethane -0 .35 -0 .35 -0 .35 -0 .35 -0 .35 -0 .501,1-Dichloroethene -0 .34 -0 .34 -0 .34 -0 .34 -0 .34 -0 .501,2-Dichlorobenzene -0.12 -0.12 -0.12 -0 .12 -0.12 -0.501,2-Dichloroethane -0 .32 -0 .32 -0 .32 -0 .32 -0 .32 -0 .501,2-Dichloro ro ane -0 .29 -0 .29 -0 .29 -0 .29 -0 .29 -0 .501,3-Dichlorobenzene -0.18 -0.18 -0.18 -0 .18 -0.18 -0.501,4-Dichlorobenzene -0 .29 -0 .29 -0 .29 -0 .29 -0 .29 -0 .501,4-Dioxane -2 .0 -2 .0 -2 .0 -2 .0 -2 .0 - -2-Chloroeth lvin 1 Ether -0.86 -0.86 -0.86 -0 .86 -0.86 -5 . 02-Hexanone -0 .85 -0 .85 -0 .85 -0 .85 -0 .85 -2 . 5Acetone 22 25 -4 .2 -4 .2 -4 .2 -1 0Benzene -0.18 -0.18 -0.18 -0 .18 -0.18 -0.50

Bromodichloromethane -0 .32 -0 .32 -0 .32 -0 .32 -0 .32 -0 .50Bromoform -0.30 -0 .30 -0 .30 -0 .30 -0 .30 -0 .50Bromomethane -0 .36 -0 .36 -0 .36 -0 .36 -0 .36 -0 .50Carbon Disulfide -0 .26 -0 .26 -0 .26 -0 .26 -0 .26 -0 .50Carbon Tetrachloride -0 .49 -0 .49 -0 .49 -0.49 -0 .49 -0 .50Chlorobenzene -0 .31 -0 .31 -0 .31 -0 .31 -0 .31 -0 .50Chloroethane -0 .21 -0 .21 -0 .21 -0 .21 -0 .21 -0 .50Chloroform -0.28 -0 .28 -0 .28 -0 .28 -0 .28 -0 .50Chloromethane -0 .30 -0 .30 -0 .30 -0.30 -0 .30 -1 . 0cis-1,2-Dichloroethene -0 .18 -0 .18 -0 .18 -0 .18 -0 .18 -0 .50cis-1,3-Dichloro ro ene -0 .37 -0 .37 -0 .37 -0 .37 -0 .37 -0 .50Dibromochloromethane -0 .24 -0 .24 -0 .24 -0 .24 -0 .24 -0 .50Eth lbenzene -0 .18 -0 .18 -0 .18 -0.18 -0 .18 -0.502-Butanone (MEK) -1 .2 -1 .2 -1 .2 -1 .2 -1 .2 -5 . 04-Meth 1-2-Pentanone (MIBK) -1 .2 -1 .2 -1 .2 -1 .2 -1 .2 -2 . 5Methylene Chloride -0 .27 -0 .27 -0 .27 -0 .27 -0.27 -1 . 0Tetrachloroethene -0 .086 -0 .086 -0.086 -0.086 -0 .086 -0 .50Toluene -0 .22 -0 .22 -0 .22 -0 .22 -0 .22 -0 .50trans-l,2-Dichloroethene -0 .20 -0 .20 -0 .20 -0 .20 -0 .20 -0 .50trans-l,3-Dichloro ro ene -0 .45 -0 .45 -0.45 -0.45 -0.45 -0 .50

Trichloroethene -0 .27 -0 .27 -0 .27 -0 .27 -0 .27 -0 .50Trichloro fluorometh ane -0 .23 -0 .23 -0 .23 -0 .23 -0 .23 -0 .50Trichlorotri fluoroethane -0 .27 -0 .27 -0 .27 -0 .27 -0 .27 -1 .0Vinyl Chloride -0 .25 -0 .25 -0 .25 -0 .25 -0 .25 -0 .50X lens (m + ) -0 .30 -0 .30 -0 .30 -0 .30 -0.30 -0 .50X lenes (ortho) -0 .13 -0.13 -0.13 -0.13 -0.13 -0 .50Method 8260 8260 8260 8260 8260 8260

Laboratory Babcock Babcock Babcock Babcock Babcock Alpha


I

HDMSP00140885

E

E


IN CHATSWORTH FORMATION WELLS, TIFIIRD QUARTER 200 0

Or anic Com d ( /1)RD -48C RD -50 RD-51C RD-52C RD-53g poun µg08-08-00 08-05-06 ` 08-07-00 08-07-00 08 -07-00* 08-06-0 0

Chatswo rth Formation Wells

1 .1,1-Trichloroethane -0 .38 -0 .38 -0 .38 -0 .38 -0 .38 0 .28J1, 1, 2, 2-Tetrachloroethane -0 .099 -0 .099 -0 .099 -0 .099 -0.099 -0.0991,1,2-Trichloroethane -0 .27 -0 .27 -0 .27 -0 .27 -0 .27 -0 .271,1-Dichloroeth ane -0 .35 -0 .35 -0 .35 -0 .35 -0 .35 1 .31 .1-Dichloroethene -0 .34 -0 .34 -0 .34 -0 .34 -0 .34 9 .91,2-Dichlorobenzene -0.12 -0.12 -0.12 -0.12 -0.12 -0 .1 21,2-Dichloroeth ane -0 .32 -0 .32 -0 .32 -0 .32 -0 .32 -0 .321,2-Dichloro ro ane -0 .29 -0 .29 -0 .29 -0 .29 -0 .29 -0 .291,3-Dichlorobenzene -0.18 -0.18 -0.18 -0.18 -0 . 18 -0 .1 81,4-Dichlorobenzene -0.29 -0.29 -0.29 -0.29 -0.29 -0.291,4-Dioxane -2 .0 -2 .0 -2 .0 -2 .0 -2 .0 -2 . 02-Chloroeth lvin l Ether -0 .86 -0 .86 -0 .86 -0.86 -0.86 -0 .862-Hexanone -0 .85 -0 .85 -0.85 -0 .85 -0 .85 -0.85Acetone -4.2 -4 .2 -4.2 -4.2 -4.2 -4 .2Benzene -0 .18 -0 .18 -0.18 -0.18 -0 .18 -0 .1 8Bromodichloromethane -0 .32 -0 .32 -0 .32 -0 .32 -0 .32 -0 .32Bromoform -0 .30 -0 .30 -0 .30 -0.30 -0 .30 -0 .30Bromomethane -0 .36 -0 .36 -0 .36 -0 .36 -0 .36 -0 .36Carbon Disulfide -0 .26 0.26J -0 .26 -0 .26 -0.26 -0 .26Carbon Tetrachloride -0 .49 -0 .49 -0 .49 -0 .49 -0 .49 -0 .49Chlorobenzene -0 .31 -0 .31 -0 .31 -0 .31 -0 .31 -0 .3 1Chloroethan e -0 .21 -0 .21 -0 .21 -0 .21 -0 .21 -0 .2 1Chloroform -0 .28 -0 .28 -0 .28 -0 .28 -0 .28 -0 .2 8Chloromethane -0 .30 -0 .30 -0 .30 -0 .30 -0 .30 -0 .30cis-1,2-Dichloroethene -0.18 -0.18 -0.18 0.21J 0.22J 4 .0cis-1,3-Dichloro ro ene -0 .37 -0 .37 -0 .37 -0 .37 -0 .37 -0 .37Dibromochloromethane -0 .24 -0 .24 -0 .24 -0 .24 -0 .24 -0 .24Ethylbenzene -0.18 -0.18 -0.18 -0.18 -0.18 -0 .1 82-But anone (MEK) -1 .2 -1 .2 -1 .2 -1 .2 -1 .2 -1 . 24-Methyl-2-Pentanone (MIBK) -1 .2 -1 .2 -1 .2 -1 .2 -1 .2 -1 . 2

-Methylene Chloride -0 .27 -0 .27 -0 .27 -0 .27 -0 .27 -0 .2 7Tetrachloroethene -0.086 -0.086 -0.086 -0.086 -0.086 -0.086Toluene -0.22 -0.22 -0.22 -0.22 -0 .22 -0 .22trans-1,2-Dichloroethene -0 .20 -0 .20 -0.20 -0 .20 -0 .20 -0 .20trans-1,3-Dichloro roene -0 .45 -0 .45 -0 .45 -0 .45 -0 .45 -0 .45Trichloroethene -0 .27 -0 .27 -0 .27 -0.27 -0 .27 140Trichlorofluorometh ane -0 .23 -0 .23 -0 .23 -0.23 -0 .23 -0 .23Trichlorotrifluoroethane -0 .27 -0 .27 -0 .27 -0 .27 -0 .27 -0 .27Vinyl Chloride -0 .25 -0 .25 -0 .25 -0 .25 -0 .25 -0 .25Xylenes (m + p) -0 .30 -0 .30 -0.30 -0.30 -0 .30 -0 .3 0X lens (ortho) -0 .13 -0 .13 -0.13 -0.13 -0 .13 -0 .1 3Method 8260 8260 8260 8260 8260 8260

[Laboratory Babcock Babcock Babcock Babcock Babcock Babcock


HDMSPOO140886



Organic Com ound ( /1) RD - 56B RD-57 RD-58Bp µg08-10 -00 08 -10-00* 08 -10-00** 08 -08-00 08 -06-00 08-06-00* *


1,1,1-Trichloroethane -0 .38 -0 .38 -0 .50 -0 .38 -0 .38 -0 .501,1,2,2-Tetrachloroethane -0 .099 -0 .099 -0 .50 -0 .099 -0 .099 -0 .501,1,2-Trichloroeth an e -0 .27 -0 .27 -0 .50 -0 .27 -0 .27 -0 .501,1-Dichloroethane -0.35 -0 .35 -0 .50 -0 .35 -0 .35 -0 .501,1-Dichloroethene -0 .34 -0 .34 -0 .50 -0 .34 -0 .34 -0 .501,2-Dichlorobenzene -0 .12 -0 .12 -0.50 -0.12 -0.12 -0 .501,2-Dichloroethane -0 .32 -0 .32 -0 .50 -0 .32 -0 .32 -0 .501,2-Dichloro ro ane -0 .29 -0 .29 -0 .50 -0 .29 -0 .29 -0 .501,3-Dichlorobenzene -0.18 -0.18 -0.50 -0.18 -0 .18 -0 .501,4-Dichlorobenzene -0.29 -0.29 -0.50 -0.29 -0 .29 -0.501,4-Dioxane -2 .0 -2 .0 --- -2 .0 -2 .0 ---2-Chloroeth lvin 1 Ether -0 .86 -0 .86 -5 .0 -0 .86 -0 .86 -5 . 02-Hexanone -0.85 -0.85 -2.5 -0.85 -0 .85 -2 . 5Acetone -4 .2 -4.2 -10 -4.2 -4.2 -1 0Benzene -0.18 -0.18 -0.50 -0.18 -0.18 -0.50Bromodichloromethane -0 .32 -0 .32 -0 .50 -0 .32 -0 .32 -0 .50Bromoform -0 .30 -0 .30 -0 .50 -0 .30 -0 .30 -0 .50Bromomethane -0 .36 -0 .36 -0 .50 -0.36 -0 .36 -0 .50Carbon Disulfide 0.27J -0 .26 -0 .50 -0 .26 -0 .26 -0 .50Carbon Tetrachloride -0 .49 -0 .49 -0.50 -0 .49 -0 .49 -0 .50Chlorobenzene -0.31 -0.31 -0.50 -0.31 -0.31 -0 .50Chloroeth ane -0 .21 -0 .21 -0 .50 -0 .21 -0 .21 -0 .50Chloroform -0.28 -0 .28 -0 .50 -0 .28 -0.28 -0 .50Chloromethan e -0 .30 -0 .30 -1 .0 -0 .30 -0 .30 -1 .0cis-1 .2-Dichloroethene -0.18 -0.18 -0.50 -0.18 -0.18 -0 .50cis-1,3-Dichloro ro ene -0 .37 -0 .37 -0 .50 -0 .37 -0.37 -0 .50Dibromochloromethane -0.24 -0.24 -0.50 -0.24 -0.24 -0.50Ethylbenzene -0 .18 -0.18 -0.50 -0 .18 -0.18 -0.502-But anone (MEK) -1 .2 -1 .2 -5 .0 -1 .2 -1 .2 -5 . 04-Methvl-2-Pent anone (MIBK) -1 .2 -1 .2 -2 .5 -1 .2 -1 .2 -2 . 5Methylene Chloride -0 .27 -0 .27 -1 .0 -0 .27 -0 .27 -1 . 0Tetrachloroethee -0 .086 -0 .086 -0 .50 -0 .086 -0 .086 -0 .50Toluene -0 .22 -0 .22 -0.50 -0.22 -0 .22 -0 .50trans-1, 2-Dichloroethene -0 .20 -0 .20 -0 .50 -0 .20 -0 .20 -0 .50trans- l .3-Dichloro ro ene -0 .45 -0 .45 -0 .50 -0 .45 -0.45 -0 .50Trichloroethee -0 .27 0 .28J -0 .50 -0 .27 -0.27 -0 .50Trichlorofluorometh ane -0 .23 -0 .23 -0 .50 -0 .23 -0 .23 -0 .50Trichlorotrifluoroeth ane -0 .27 -0 .27 -1 .0 -0 .27 -0 .27 -1 . 0Vinyl Chloride -0 .25 -0 .25 -0 .50 -0 .25 -0 .25 -0 .50X lenes (m + ) -0.30 -0.30 -0.50 -0.30 -0 .30 -0 .50X lenes (ortho) -0.13 -0.13 -0.50 -0 .13 -0 .13 -0 .50Method 8260 8260 8260 8260 8260 8260Laboratory Babcock Babcock Alpha Babcock Babcock Alpha

See last page of Table 7 for footnotes and explanations .Haley & Aldrich, Inc. 26472173/M419 10

1

HDMSP00140887

E



Or anic C d ( /lRD -58C RD-59A RD-59B RD -59C RD-6 1g µgompoun )08-06 -00 0840-00- 1- 08-10-00 08-10-00 08 -07-00 08-07- 00*


1,1,1-Trichloroeth an e -0 .38 -0 .38 -0 .38 -0 .38 -0 .38 -0 .381,1,2,2-Tetrachloroeth ane -0.099 -0 .099 -0.099 -0.099 -0.099 -0 .0991,1, 2-Trichloroethane -0 .27 -0 .27 -0 .27 -0 .27 -0 .27 -0 .271, 1 -Dichloroethane -0 .35 -0 .35 -0 .35 -0 .35 -0 .35 -0 .351,1-Dichloroethene -0 .34 -0 .34 -0 .34 -0 .34 -0 .34 -0 .341,2-Dichlorobenzene -0.12 -0.12 -0.12 -0.12 -0.12 -0 .1 21,2-Dichloroethane -0 .32 -0 .32 -0 .32 -0 .32 -0 .32 -0 .321,2-Dichloro ro ane -0 .29 -0 .29 -0 .29 -0 .29 -0 .29 -0 .291,3-Dichlorobenzene -0.18 -0.18 -0.18 -0.18 -0.18 -0 .1 81,4-Dichlorobenzene -0.29 -0.29 -0.29 -0.29 -0.29 -0.291,4-Dioxane -2 .0 -2.0 -2.0 -2 .0 -2.0 -2 .02-Chloroeth lvin l Ether -0.86 -0.86 -0.86 -0.86 -0.86 -0.862-Hexanone -0.85 -0.85 -0.85 -0.85 -0.85 -0.85Acetone -4 .2 -4.2 -4.2 -4 .2 -4.2 -4 .2Benzene -0.18 -0.18 -0.18 -0.18 -0.18 -0 .18Bromodichloromethane -0 .32 -0 .32 -0 .32 -0 .32 -0 .32 -0 .32Bromoform -0.30 -0 .30 -0 .30 -0 .30 -0 .30 -0 .30Bromomethane -0 .36 -0 .36 -0 .36 -0 .36 -0 .36 -0 .36Carbon Disulfide -0 .26 0.32J -0 .26 -0 .26 -0 .26 0.8Carbon Tetrachloride -0 .49 -0 .49 -0 .49 -0 .49 -0 .49 -0 .49Chlorobenzene -0 .31 -0 .31 -0 .31 -0 .31 -0 .31 -0 .3 1Chloroethan e -0 .21 -0 .21 -0 .21 -0 .21 -0 .21 -0 .2 1Chloroform -0 .28 -0 .28 -0 .28 -0 .28 -0 .28 -0 .28Chloromethane -0 .30 -0 .30 -0 .30 -0 .30 -0 .30 -0 .30cis-1,2-Dichloroethene 0 .8 -0 .18 -0 .18 -0 .18 -0 .18 -0 .18cis- 1,3-Dichloro ro ene -0 .37 -0 .37 -0 .37 -0 .37 -0 .37 -0 .37Dibromochloromethane -0 .24 -0 .24 -0.24 -0.24 -0.24 -0.24Eth lbenzene -0 .18 -0 .18 -0.18 -0.18 -0.18 -0 .1 82-But anone (MEK) -1 .2 -1 .2 -1 .2 -1 .2 -1 .2 -1 . 24-Methyl-2-Pentanone (MIBK) -1 .2 -1 .2 -1 .2 -1 .2 -1 .2 -1 . 2

-Methylene Chloride -0 .27 -0 .27 -0 .27 -0 .27 -0 .27 -0 .27Tetrachloroethene -0 .086 -0.086 -0 .086 -0.086 -0.086 -0 .086Toluene -0 .22 -0 .22 -0 .22 -0 .22 -0 .22 -0 .22trans-1,2-Dichloroethene -0 .20 -0 .20 -0 .20 -0 .20 -0 .20 -0 .20trans-1,3-Dichloro roene -0 .45 -0 .45 -0 .45 -0 .45 -0 .45 -0 .45Trichloroethene -0.27 -0 .27 -0.27 -0 .27 -0.27 -0.27Trichlorofluoromethan e -0 .23 -0 .23 -0 .23 -0 .23 -0.23 -0 .23Trichlorotrifluoroethane -0.27 -0 .27 -0.27 -0.27 -0.27 -0.27

-Vinyl Chloride 1 .6 -0 .25 -0 .25 -0 .25 -0.25 -0 .25Xylenes (m + p) -0 .30 -0 .30 -0 .30 -0.30 -0 .30 -0 .30X lens (ortho) -0 .13 -0 .13 -0 .13 -0 .13 -0 .13 -0 .1 3Method 8260 8260 8260 8260 8260 8260Laboratory Babcock Babcock Babcock Babcock Babcock Babcock

See last page of Table 7 for footnotes and explanations .Haley & Aldrich. Inc . 26472/73/M419 1 1

HDMSPOO140888



O i d /1CRD-62 RD-63 RD -66 RD -67 RD-68A

(µgrgan c ompoun )08-07-00 08 -07-00 08 -05-00 08-11-00 08 -10-00 08-10-00*


1,1,1-Trichloroeth ane -0 .38 -0 .38 -0 .38 -0 .38 -0 .38 -0 .3 81,1,2,2-Tetrachloroeth ane -0 .099 -0.099 -0.099 -0.099 -0.099 -0.0991,1,2-Trichloroeth ane -0 .27 -0.27 -0.27 -0.27 -0.27 -0.27

1,1-Dichloroeth ane -0 .35 0.9 -0 .35 -0 .35 -0 .35 -0 .351,1-Dichloroethene -0.34 1.9 -0 .34 -0.34 -0 .34 -0 .341,2-Dichlorobenzene -0.12 -0.12 -0.12 -0 .12 -0.12 -0.121,2-Dichloroethane -0 .32 -0 .32 -0 .32 -0 .32 -0 .32 -0 .321,2-Dichloro ro ane -0.29 -0.29 -0.29 -0.29 -0.29 -0.291,3-Dichlorobenzene -0.18 -0.18 -0.18 -0.18 -0.18 -0.181,4-Dichlorobenzene -0.29 -0.29 -0.29 -0.29 -0.29 -0.291,4-Diox ane -2.0 -2 .0 -2.0 -2.0 -2.0 -2 . 02-Chloroeth Ivin 1 Ether -0 .86 -0 .86 -0 .86 -0 .86 -0 .86 -0 .862-Hexanone -0 .85 -0 .85 -0 .85 -0 .85 -0 .85 -0 .8 5Acetone -4.2 -4.2 -4.2 -4.2 -4.2 -4 .2

Benzene -0 .18 -0.18 -0.18 -0.18 -0.18 -0 .18Bromodichloromethane -0 .32 -0 .32 -0 .32 -0 .32 -0 .32 -0 .32Bromoform -0 .30 -0 .30 -0.30 -0 .30 -0 .30 -0 .30Bromomethane -0 .36 -0 .36 -0 .36 -0 .36 -0 .36 -0 .36Carbon Disulfide -0 .26 0.27J -0 .26 0.31J -0 .26 -0 .26Carbon Tetrachloride -0 .49 -0 .49 -0 .49 -0 .49 -0 .49 -0 .49Chlorobenzene -0 .31 -0.31 -0 .31 -0.31 -0 .31 -0 .3 1Chloroethane -0 .21 -0 .21 -0 .21 -0 .21 -0 .21 -0 .2 1

Chloroform -0 .28 -0 .28 -0 .28 -0 .28 -0 .28 -0 .2 8Chloromethane -0 .30 -0 .30 -0 .30 -0 .30 -0 .30 -0 .30cis-1,2-Dichloroethene -0 .18 34 -0 .18 -0 . 18 -0 .18 -0 .1 8

cis-1,3-Dichloro ro ene -0 .37 -0 .37 -0 .37 -0 .37 -0 .37 -0 .37

Dibromochloromethane -0 .24 -0.24 -0 .24 -0.24 -0 .24 -0 .24Eth lbenzene -0 .18 -0.18 -0 .18 -0.18 -0 .18 -0 .1 82-But anone (MEK) -1 .2 -1 .2 -1 .2 -1 .2 -1 .2 -1 . 24-Meth 1-2-Pentanone (MIBK) -1 .2 -1 .2 -1 .2 -1 .2 -1 .2 -1 . 2

Methylene Chloride -0 .27 -0.27 -0 .27 -0.27 -0 .27 -0.27Tetrachloroethene -0 .086 -0.086 -0 .086 -0.086 -0.086 -0.086Toluene -0 .22 -0.22 -0.22 -0.22 -0 .22 -0.22

trans- 1 ,2-Dichloroethene -0 .20 -0 .20 -0 .20 -0 .20 -0 .20 -0 .20

trans- 1 ,3-Dichloro ro ene -0 .45 -0 .45 -0 .45 -0 .45 -0 .45 -0 .45Trichloroethene -0.27 6.6 -0.27 -0.27 -0 .27 -0.27

Trichlorofluoromethane -0 .23 -0 .23 -0 .23 -0 .23 -0 .23 -0 .2 3Trichlorotrifluoroethane -0 .27 -0 .27 -0 .27 -0 .27 -0 .27 -0 .27

Vinyl Chloride -0 .25 -0 .25 -0 .25 -0 .25 -0 .25 -0 .25

X lens (m + ) -0 .30 -0 .30 -0 .30 -0 .30 -0 .30 -0 .30X lenes(ortho) -0.13 -0 .13 -0.13 -0.13 -0.13 -0.1 3

Method 8260 8260 8260 8260 8260 8260


See last page of Table 7 for footnotes and explanations .Haley & Aldrich . Inc. 26472/731M419 12

1

1

HDMSP00140889

E

TAA ,7SUMMARY OF RESULTS FOR EPA PRIORITY VOLATILE ORGANIC COMPOUNDS


Or ani C d /1RD-68B RD-69 RD-70 RD-71 WS-4A OS-16g c ompoun (µg )08-10-00 08-10-00 08-15-00 08-05-00 08-09-00 08-15-00


1,1,1-Trichloroethane -0 .38 -0 .38 -0 .38 -0 .38 -0 .38 -0 .381,1,2,2-Tetrachloroeth ane -0.099 -0.099 -0.099 -0.099 -0.099 -0 .0991,1,2-Trichloroethane -0 .27 -0 .27 -0 .27 -0 .27 -0 .27 -0 .271,1-Dichloroethane -0 .35 -0 .35 -0 .35 -0 .35 -0 .35 -0 .351,1-Dichloroethene -0 .34 -0 .34 -0 .34 -0 .34 -0 .34 -0 .341,2-Dichlorobenzene -0.12 -0.12 -0.12 -0.12 -0.12 -0 .121,2-Dichloroethane -0 .32 -0 .32 -0 .32 -0 .32 -0 .32 -0 .321,2-Dichloro ro ane -0 .29 -0 .29 -0 .29 -0 .29 -0 .29 -0 .291,3-Dichlorobenzene -0.18 -0.18 -0.18 -0.18 -0.18 -0 .181,4-Dichlorobenzene -0.29 -0 .29 -0.29 -0.29 -0.29 -0.291,4-Diox ane -2.0 -2 .0 -2 .0 -2 .0 -2.0 -2 .02-Chloroeth lvinyl Ether -0 .86 -0 . 86 -0.86 -0 .86 -0 . 86 -0 .862-Hexanone -0 .85 -0 .85 -0 .85 -0 .85 -0 .85 -0 .85Acetone -4.2 -4 .2 -4 .2 -4 .2 -4.2 -4 .2Benzene -0.18 -0 . 18 -0.18 -0 . 18 -0 .18 -0 .18Bromodichloromethane -0 .32 -0 .32 -0 .32 -0 .32 -0.32 29Bromoform -0.30 -0 .30 -0 .30 -0 .30 -0 .30 5 .5Bromomethane -0 .36 -0 .36 -0 .36 -0 .36 -0 .36 -0 .36Carbon Disulfide -0 .26 -0 .26 -0 .26 -0 .26 -0 .26 -0 .26Carbon Tetrachloride -0 .49 -0 .49 -0 .49 -0 .49 -0 .49 -0 .49Chlorobenzene -0 .31 -0 .31 -0 .31 -0 .31 -0 .31 -0 .3 1Chloroethane -0 .21 -0 .21 -0 .21 -0 .21 -0 .21 -0 .2 1Chloroform -0.28 -0 .28 -0 .28 -0 .28 -0 .28 24Chloromethane -0 .30 -0 .30 -0 .30 -0.30 -0 .30 -0 .30cis-1,2-Dichloroethene -0.18 -0.18 -0 .18 -0.18 -0 .18 -0 .1 8cis- 1,3-Dichloro ro ene -0 .37 -0 .37 -0 .37 -0 .37 -0 .37 -0 .37Dibromochloromethane -0 .24 -0 .24 -0 .24 -0.24 -0 .24 26Ethylbenzene -0 .18 -0.18 -0.18 -0.18 -0 .18 -0 .1 82-Butanone (MEK) -1 .2 -1 .2 -1 .2 -1 .2 -1 .2 -1 . 24-Methyl-2-Pentanone (MIBK) -1 .2 -1 .2 -1 .2 -1 .2 -1 .2 -1 . 2Methylene Chloride -0 .27 -0.27 -0.27 -0.27 -0.27 -0.27Tetrachloroethene -0 .086 -0 .086 -0 .086 -0 .086 -0.086 -0.086Toluene -0 .22 -0.22 -0.22 -0.22 -0.22 -0.22trans-1,2-Dichloroethene -0 .20 -0 .20 -0 .20 -0 .20 -0 .20 -0 .20trans- 1,3-Dichloro roene -0.45 -0 .45 -0 .45 -0 .45 -0 .45 -0 .45Trichloroethene -0 .27 -0 .27 -0 .27 -0 .27 -0 .27 -0 .27Trichlorofluorometh ane -0.23 -0.23 -0.23 -0.23 -0.23 -0.23Trichlorotrifluoroethane -0.27 -0.27 -0.27 -0.27 -0.27 -0.27Vinyl Chloride -0.25 -0.25 -0.25 -0.25 -0.25 -0.25

Xylenes (m + p) -0 .30 -0 .30 -0 .30 -0 .30 -0 .30 -0 .30Xylenes (ortho) -0 .13 -0 .13 -0 .13 -0 .13 -0 .13 -0 .1 3Method 8260 8260 8260 8260 8260 8260Laboratory Babcock Babcock Babcock Babcock Babcock Babcock

See last page of Table 7 for footnotes and explanations .Haley & Aldrich, Inc. 26472/73/M419 1 3

HDMSPOO140890



Or anic Com ound ( /1)OS-17 OS-24 OS-26g p µg

08-10-00 08-05-00 08 -OS-00* 08-15-0 0Chatsworth Formation Wells

1,1,1-Trichloroethane -0 .38 -0 .38 -0 .38 -0 .381,1,2,2-Tetrachloroeth ane -0 .099 -0 .099 -0 .099 -0 .0991,1,2-Trichloroeth ane -0 .27 -0 .27 -0 .27 -0 .271,1-Dichloroeth ane -0.35 -0 .35 -0 .35 -0 .351,1-Dichloroethene -0 .34 0 .7 1 .2 -0 .341,2-Dichlorobenzene -0 .12 -0.12 -0.12 -0.121,2-Dichloroethane -0.32 -0 .32 -0 .32 -0 .321,2-Dichloro ro ane -0.29 -0.29 -0 .29 -0.291,3-Dichlorobenzene -0.18 -0.18 -0 .18 -0.181,4-Dichlorobenzene -0.29 -0.29 -0 .29 -0.291,4-Diox ane -2 .0 -2 .0 -2 .0 -2 . 02-Chloroeth lvin 1 Ether -0 .86 -0 .86 -0 .86 -0 .862-Hex anone -0.85 -0 .85 -0 .85 -0 .85Acetone -4.2 -4.2 -4.2 -4 .2Benzene -0 .18 -0.18 -0.18 -0 .1 8Bromodichlorometh ane -0 .32 -0 .32 -0 .32 -0 .32Bromoform -0 .30 -0 .30 -0 .30 -0 .30Bromomethane -0 .36 -0 .36 -0 .36 -0 .36Carbon Disulfide -0.26 -0 .26 0.28J -0 .26Carbon Tetrachloride -0 .49 -0 .49 -0 .49 -0 .49Chlorobenzene -0.31 -0.31 -0.31 -0.3 1Chloroethane -0 .21 -0.21 -0 .21 -0 .2 1Chloroform -0.28 -0 .28 -0.28 -0.28Chloromethane -0 .30 -0 .30 -0 .30 -0 .30cis-1,2-Dichloroethene -0.18 0 .5 0 .9 -0 .1 8cis-1,3-Dichloro ro ene -0.37 -0 .37 -0 .37 -0 .37Dibromochloromethane -0 .24 -0 .24 -0.24 -0.24Eth lbenzene -0 .18 -0.18 -0.18 -0 .1 82-Butanone (MEK) -1 .2 -12 -1 .2 -1 . 24-Meth 1-2-Pentanone (MIBK) -1 .2 -1 .2 -1 .2 -1 . 2Methylene Chloride -0 .27 -0 .27 -0 .27 -0 .27Tetrachloroethene -0 .086 0.7 0.9 -0 .086Toluene -0.22 -0.22 -0.22 -0.22trans- 1 ,2-Dichloroethene -0.20 -0.20 -0.20 -0.20trans-l,3-Dichloro ro ene -0 .45 -0 .45 -0 .45 -0 .45Trichloroethene -0.27 28 52 -0.27Trichlorotluorometh ane -0 .23 -0 .23 -0 .23 -0 .23Trichlorotrifluoroethane -0 .27 -0 .27 -0 .27 -0 .27Vinyl Chloride -0 .25 -0 .25 -0 .25 -0 .25X lenes (m + ) -0 .30 -0 .30 -0 .30 -0 .30X lenes (ortho) -0.13 -0 .13 -0 .13 -0.1 3Method 8260 8260 8260 826 0Laboratory Babcock Babcock Babcock Babcock

1

See last page of Table 7 for footnotes and explanations. ,Haley & Aldrich, Inc. 26472173/M419 14

HDMSP00140891

TABLE 7

FOOTNOTES AND EXPLANATIONS

Alpha = Alpha Analytical of Sparks, Nevada .

Babcock = E.S. Babcock & Sons of Riverside, California .

() = Less than; numerical value represents the Detection Limit for that compound .

(*) = Sample duplicate .

(**) = Sample split .

(µg/l) = Micrograms per liter .

(---) = Analysis not performed.

J = Trace result (less than Practical Quantitation Limit, greater than MethodDetection Limit) . Value estimated .

`r = See text, Section 4.02A, for discussion of this suspect result .

1

See last page of Table 7 for footnotes and explana ti ons.Haley & Aldrich, Inc . 26472/73/M419

15

TABLE 8

SUMMARY OF RESULTS FOR GASOLINE RANGE ORGANICS ,THIRD QUARTER 200 0

Sample IdentifierDate

SampledOrganic

CompoundConcentratio n

( micrograms per liter)

EPAMethodNumber

Laboratory

Shallow Zone Wells

RS-30 08-06-00 Gasoline range organ ics -30 8015 BabcockRS-31 08-06-00 Gasoline range organ ics -30 8015 Babcoc kRS-32 08-06-00 Gasoline range organ ics -30 8015 BabcockChatsworth Formation Wells

RD-32 08-03-00 Gasoline range organ ics -30 8015 BabcockRD-36B 08-05-00 Gasoline range organics -30 8015 BabcockRD-36C 08-07-00 Gasoline range organics -30 8015 BabcockRD-36D 08-05-00 Gasoline range organ ics -30 8015 BabcockRD-37 08-05-00 Gasoline range organics -30 8015 BabcockRD-38A 08-05-00 Gasoline range organics -30 8015 BabcockRD-53 08-06-00 Gasoline range organics -30 8015 Babcock

Babcock

26472/73/M419Haley & Aldrich, Inc .

E.S. Babcock & Sons of Riverside, California .

HDMSP00140893

- - - - - - - - - - - - - - - - - - -

TABLE 9

RESULTS OF ANALYSES FOR TRACE METAL CONSTITUENTS AND CYA NIDE, THIRD QUARTER 2000

CONSTITUENT ( /t MCL 'RD-56B RD-59A RD-59B RD-59Cmg ) --08-10-00 08-10-00 08-10-00 08-10-0 0

Antimony 0.006 0 . 0013J 0.0023J 0.0018J 0.0016)Arsenic 0 .05 -0.0001 0.OO11J -0.0001 0 .00012J

Barium 1 0.12 0. 17 0. 16 0 .17Beryllium 0.004 -0.0001 -0.0001 -0.0001 -0 .000 1

Cadmium 0.005 -0 . 0(X)05 -0 .00005 -0.00005 -0.0000 5Chromium (total) 0 .05 0.012 0.011 0.0099J 0.010 ----Cobalt --- 0.00012J 0 .0002J 0.00009J 0.00007J

Copper 1 . 3w 0.0020J 0 .0009J 0.0012 .1 0.OO11J

Iron 0 .3 0 .13 1 .5 0.072 0.014JLead 0 .015?' 0.0019J 0.00019J -0 .0001 -0.0001

Manganese 0.05 0.033 0 .062 0 .026 0.015

Mercury 0 .002 -0.00012 -0 .00012 -0.00012 -0.0001 2

Molybdenum --- 0 .0015.1 0 .0012J 0 .0013J 0.0013)Nickel 0 . 1 0.0029.1 0 .0042J 0 .0018.1 0.OO11J

Selenium 0.05 0.00027J 0.00035J 0 .00033J 0 .00067)Silver 0 . 1 0.00007J 0.00009J -0.00003 -0.00003Thallium 0.002 -0.00007 -0.00007 -0.00007 -0.00007Vanadium 0.015-u 0 .0033) 0.0032J 0.0027.1 0.0028)Zinc 5 .0" 1 .1 0.29 0.052 0.053Cyanide 0.2 --- --- --- -- -Laboratory --- Babcock Babcock Babcock Babcock

See last page of Table 9 IUr footnotes and explanations .

h aley & Aldrich . Inc . 2M72/73/M419

t

TABLE 9


Babcock

mg/1

(- )

2/

3 /

4/

J

E.S . Babcock & Sons of Riverside, California .

milligrams per liter .

Less than ; numerical value represents the Detection Limit for thatcompound .

Analysis not performed .

Maximum Contaminant Level (MCL) is the California primary drinking waterstandard unless otherwise indicated (California Department of Health

Services, MCLs, Action Levels, and Unregulated Chemicals RequiringMonitoring, 2000) .

Federal Action Level to be met at customer tap .

Secondary drinking water MCL .

California Action Level .

Trace result (less than Practical Quantitation Limit, greater than MethodDetection Limit) . Value estimated .

Haley & Aldrich . Inc . 26472/73/M419 2

HDMSP00140895

TABLE 10

RESULTS OF ANALYSES FOR GROSS ALPHA AND BETA, AND TRITIUM ACTIVITIE SIN GROUNDWATER SAMPLES, THIRD QUARTER 2000

WELL DATERESULTS (picoCuries per liter/EPA Method)

ID SAMPLED Gross Alpha900.0

AMD Gross Beta900 .0

MDA J Tritium906.0

MDA


RD-7 08-10-00 8 .94 ± 2 .9 2 .65 7.04 ± 2 .6 3 .78 -33 .0 ± 130 225RD-24 08-04-00 4 .16±2.0 1 .78 6.26±1 .9 2 .63 267± 140 21 8RD-25 08-09-00 0.815± 1 .5 2.30 5.33± 1 .7 2 .24 3 .69± 130 226RD-27 08-04-00 3 .15 ±2.0 2 . 58 4.88 ±2 .1 3 .09 73 .6± 130 220RD-28 08-09-00 3 .54±4.1 5 .74 28 .7±3 .8 4 .55 916± 150 218RD-30 08-08-00 7.63 ± 3 .0 2 .64 10.4 ± 2 .8 3 .79 19.7 ± 130 220RD-33B 08-09-00 --- --- --- --- 64.1 ± 130 21 9RD-33C 08-09-00 --- --- --- --- 77 .5 ± 130 22 1RD-34A 08-29-00 --- --- --- --- 2440 ± 150 14 6RD-34C 08-08-00 --- --- --- --- 16 .0 ± 130 21 8RD-57 08-08-00 --- --- --- --- -14 .7 ± 130 226RD-59A 08-10-00 --- --- --- --- 13 .0 ± 140 229RD-59B 08-10-00 --- --- --- --- -23 .7 ± 130 224RD-59C 08-10-00 --- --- --- --- 54.4 ± 130 223

FOOTNOTES AND EXPLANATIONS :Results are presented as the activity plus or minus the error . Any activity detected is reported by the laboratory .Analytical results that are less than the procedure background value are shown as negative values . Samples arefiltered and acidified in the field with the exception of tritium .

Analyses were performed by Thermo Retec of Richmond, California .

MDA = Minimum detectable activity .(---) = Analysis not performed .

Haley & Aldrich . Inc . 26472/73/M419

HDMSP00140896

TABLE 1 1

RESULTS OF ANALYSES FOR GAMMA-EMITTING RADIONUCLIDE STHIRD QUARTER 2000

WELL IDENTIFIER RD-24 RD-25 RD -27 RD-28 RD-30RADIONUCLIDE 08-04 - 00 08-09-00 08-04-00 08-09-00 08-08-00

(picoCuries perliter/MDA) ACTIVITY MDA ACTIVITY MDA ACTIVITY MDA ACTIVITY MDA ACTIVITY MD A

GAMMA-EMITTING

Actinium-228 ND 54 .0 ND 55 .4 ND 51 .0 ND 52 .6 ND 69 . 1Bismuth -212 ND 84 .5 ND 99 .5 ND 79 .7 ND 88 .4 ND 102Bismuth -214 ND 22 .1 ND 24 .6 ND 21 .4 ND 23 .4 ND 31 . 2Cobalt-57 ND 8 .02 ND 10 .2 ND 7.63 ND 9 .24 ND 6 .7 5Cobalt-60 ND 13 .2 ND 13 .8 ND 11 .9 ND 12 .7 ND 15 . 1Cesium-134 ND 14 .3 ND 12 .7 ND 11 .1 ND 12 .0 ND 16 . 9Cesium-137 ND 12 .0 ND 12 .0 ND 10 .8 ND 12 .0 ND 15 . 0Potassium-40 ND 213 ND 219 ND 203 ND 220 ND 42 1Lead-210 ND 2580 ND 2880 ND 2470 ND 2800 ND 47 3Lead-212 ND 18 .5 ND 17 .9 ND 17 .3 ND 18 .7 NI) 18 . 6Lead-214 ND 22 .5 ND 22 .0 ND 21 .0 ND 22 .9 ND 28 . 0Radium-226 ND 254 ND 322 ND 171 ND 177 ND 184Thorium-234 ND 374 ND 402 ND 348 ND 386 ND 202Thallium-208 ND 13 .3 ND 12 .5 ND 11 .8 ND 12 .6 ND 15 . 5Uranium-235 ND 70 .5 ND 68 .4 ND 63.5 ND 69 .6 ND 60 . 6ISOTOPIC URANIUM and THORIUM

Thorium-22 8Thorium-230 ___ ___ __ _

Thorium-232 ___ __ _

Uranium-233/234 ___ __ _

Uranium-23 5

Uranium-238 ___

Samples are filtered and acidified in the field ; and analyses were performed by'I'hcruw Retce of Richmond, California .(---) = Analysis not performe dNon-detectable results are presented as "ND" with the minimum detectable activity (MDA) .Analytical results that are less than the procedure background value are shown as negative values .

Detected concentrations are presented as the activity plus or minus the error .

Ilalcy & Aldrich , Inc . 26472 /73/M41 9- - - - - - - - - - - - - - - - - - -

TABLE 1 2

SUMMARY OF PERCHLORATE RESULTS, THIRD QUARTER 2000Well

IdentifierArea Well Location Date Sampled

Perchlorate( .t g/l) Laborator y


RD-59A --- Off-site, West of Area IV RMHF 08-10-00 - 1 Babcock

RD-59B --- Off-site, West of Area IV RMHF 08-10-00 -1 Babcock

RD-59C --- Off-site, West of Area IV RMHF 08-10-00 -1 Babcock

OS-17 --- Off-site, E . of Site 08-10-00 -1 Babcock

08-10-0O* - 1 Babcock

FOOTNOTES AND EXPLANATIONS :

µg/1 micrograms per liter

(-) Less th an; numerical value is the Detection Limit for that compound .

Babcock E .S. Babcock and Sons , Inc . of Riverside, California .J Trace result (less th an Practical Quantitation Limit, greater than Method Detection Limit) .

Value estimated .


HDMSP00140898

TABLE 1 3

ANALYTICALPARAMETERS

RESULTS OF A NALYSES FOR BACKGROUND WELLS - THIRD QUARTER 200 0

WITS

WELL ID ENTIFIER / DATE SAMPLED

Indicator Parameters

pHSpecific conductance

Total organic carbon

Total organic halogens

Groundwater QualityChloride

Iron

Manganese

Sodium

Sulfate

units

Mmhos/c m

mg/I

mg/I

mg/Img/I

mg/I

mg/I

mg/I

MCI)'

6 .5 - 8 .5-°'

900-1600 -2200i'

NA

NA

250-500-600w

0.3'

0.05'

NA

250-500-600?'

Expanded Lis t

Tetrachloroethylene

Trichloroethylene

1,1,1-Trichloroethane

1,1,2-Trichloroethane

cis-1,2-Dichloroethylene

trans-l,2-Dichloroethylene

1,1-Dichloroethylene

1,1-Dichloroethane

Vinyl chloride

Carbon tetrachloride

Methylene chloride

Chloroform

Methyl ethyl ketone

Benzene

Toluene

m- and p-Xylenes

o-Xylene

Ethylbenzene

µg/I

µg/1

µg/1

µg/I

µg/I

Mg/I

µg/I

µg/I

µg/I

µg/1

µg/I

µg/I

µg/I

µg/I

µg/I

µg/I

Mg/I

µg/I

5

5

200

5

6

10

6

5

0 .5

0 .5

5

NA

NA

1

150

1750

1750

700

Phenols

2,4,5-Trichlorophenol

2,4, 6-Trichlorophenol

2,4-Dichlorophenol

2,4-Dimethylphenol

2,4-Dinitrophenol

2-Chlorophenol

2-Methyl-4, 6-dinitrophenol

2-Methylphenol

2-Nitrophenol

4-Chloro-3-methylphenol

4-Methylphenol

4-Nitrophenol

Pheno l

Pentachlorophenol

µg/I

µg/l

Mg/I

Mg/I

µg/I

µg/I

µg/I

µg/I

µg/1

µg/I

Mg/I

µg/I

µg/I

µg/I

NA

NA

NA

400

NA

NA

NA

NA

NA

NA

NA

NA

5 J

1


RD-6 RD-13 RD-48A08-08-00 08-05-00 08-07-0 0

-0 .086

-0 .27

-0 .38

-0 .27

-0 .18

-0 .20

-0 .34

-0 .35

-0 .25

-0 .49

-0 .27

-0 .28

-1 .2

-0 .18

-0 .22

-0 .30

-0 .13

-0 .18

-0 .086

-0 .27

-0 .38

-0 .27

-0 .18

-0 .20

-0 .34

-0 .35

-0 .25

-0 .49

-0 .27

-0 .28

-1 .2

-0 .18

-0 .22

-0 .30

-0 .13

-0 .18

-0 .086

-0 .27

-0 .38

-0 .27

-0 .18

-0 .20

-0.34

-0.35

-0.25

-0.49

-0.27

-0.28

-1 .2

-0 .18

-0 .22

-0 .30

-0 .13

-0 .18

RD-48B08-08-00

Primary Duplicate

-0 .086

-0 .27

-0 .38

-0 .27

-0 .18

-0 .20

-0 .34

-0 .35

-0 .25

-0 .49

-0 .27

-0 .28

-1 .2

-0 .18

-0 .22

-0 .30

-0 .13

-0 .18

-0.086

-0.27

-0 .38

-0 .27

-0 .18

-0 .20

-0 .34

-0 .35

-0 .25

-0 .49

-0 .27

-0 .28

-1 .2

-0 .18

-0 .22

-0 .30

-0 .13

-0 .18

Split

-0 .50

-0 .50

-0 .50

-0 .50

-0 .50

-0 .50

-0 .50

-0 .50

-0 .50

-0 .50

-1 .0

-0 .50

-5 .0

-0 .50

-0 .50

-0 .50

-0 .50

-0 .50

RD-48C08-08-00

1-0 .086-0.27

-0.38

-0.27

-0.18

-0.20

-0.34

-0.35

-0.25

-0.49

-0.27.

-0.28

-1 .2

-0.18

-0.22

-0.30

-0.13

-0.18

1

HDMSP00140899

TABLE 1 3


Maximum Contaminant Levels (MCL) based on California Department of Health Service prima rydrinking water standards (DOHS, 2000) .

Action level, a non- enforceable health based guidance level (DOHS, 2000) .

Recommended -Upper-Short Term secondary drinking water standards (DOHS, 2000) .

a Secondary drinking water standard (DOHS, 2000) .

µg/1 micrograms per liter .

mg/l milligrams per liter .

µmhos/cm micromhos per centimeter .

(-) Less than; numerical value indicated is the Detection Limit for that compound.

(---) Not analyzed.

NA Not available ; no MCL promulgated.

J Trace result (less than Practical Quantitation Limit , greater than Method Detection Limit). Valueestimated .

NOTE : Analyses performed by E .S . Babcock & Sons of Riverside , California . Split sample analyzed by Alpha Analytical ofSparks, Nevada .


HDMSP00140900

FAULT OR SHEAR ZONE -DASHED FOR APPROXIMATE LOCATION,QUERIED WHERE UNCERTAIN

e CHATSWORTH FORMATION WE LL

o SHALLOW ZONE WELL

A SPRING

} ABANDONED WE LL

ACTIVE TEST STAN D

FORMER OR INACTIVE TEST STAND

Q RCRA IMPOUNDMEN T

CHATSWORTH FORMATION EXTRACTION WELL

o

A

SHALLOW ZONE EXTRACTION WELL

INTERIM CARBON TREATMENT SYSTEM (CT)

A PERMITTED GROUNDWATER TREATMEN TSYSTEM - AIR STRIPPING UNIT (ASU)

PERMITTED GROUNDWATER TREATMENTSYSTEM - UV/H2O2(UV)

NOTES:RMH F= RADIOACTIVE MATERIALS HANDLING FACILITYFSDF=FORMER SODIUM DISPOSAL FACILITYTHE RMHF AND FSDF EXTRACTION SYSTEMS AREOPERATING AS I NT ERIM TREATMENT SYSTEMS

Groundwater Monitoring Quarterly Report - Third Quarter 200 0

LOCATIONS OF WELLS AND SPRINGSAND GROUNDWATER RECLAMATIONSYSTEM COMPONENT S

THE BOEING COMPANYROCKETDYNE PROPULSION & POWERSANTA SUSANA FIELD LABORATORY

Ln0m

FAULT OR SHEAR ZONE -DASHED FOR APPROXIMATE LOCATION,QUERIED WHERE UNCERTAIN

o CHATSWORTH FORMATION WELL

o SHALLOW ZONE WELL

L SPRING

ABANDONED WELL

ACTIVE TEST STAN D

~F FORMER OR INACTIVE TEST STAND

• CHATSWORTH FORMATION EXTRACTION WELL

C SHALLOW ZONE EXTRACTION WELL

INTERIM CARBON TREATMENT SYSTEM (CT)

A PERMITTED GROUNDWATER TREATMENTSYSTEM - AIR STRIPPING UNIT (ASU)

PERMITTED GROUNDWATER TREATMENTSYSTEM - UV/H2O2(UV)

NOTES :RMHF=RADIOACTIVE MATERIALS HANDLING FACILITYFSDF=FORMER SODIUM DISPOSAL FACILITYTHE RMHF AND FSDF EXTRACTION SYSTEMS AREOPERATING AS INTERIM TREATMENT SYSTEMS

Groundwater Monitoring Quarterly Report - Third Quarter 200 0

THE BOEING COMPANYROCKETDYNE PROPULSION & POWERSANTA SUSANA FIELD LABORATORY

WATER LEVEL ELEVATIONCONTOUR MAP - AUGUST 200 0

FIGURE 2

haley & aldrich...rocketdyne propulsion & power 6633 canoga avenue, d/393, t/487 canoga...

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