[discussing san jose 6 and plant 83 monitor well plugging

Environmental Science and Engineenng

A BDM IrternMo.-hi! Comoany

505 Marduelte NW. Ste. 1100 • Albuquerque. N M 87102 (505) 842|-000J • FAX: (505) 842-0595

• •r'J'^i ' 1 - - " J M a y 2 3 , 1995

Document Control No. P8301867.LTR

Mr. David L. Mayerson CERCLA Facility Coordinator General Electric Aircraft Engines 336 Woodward Road S.E. Mail Drop A-26 Albuquerque, New Mexico 87102

RE: SAN JOSE 6 AND PLANT 83 MONITOR WELL PLUGGING AND ABANDONMENT

Dear David,

In accordance with the scope of work outlined in my letter to you dated April 27, 1995, GCL has completed plugging and abandonment activities on a total of nine groundwater monitoring wells in the San Jose-6 and Plant 83 networks. Field work was completed on this task between May 1 and May 4, 1995 and was supervised by Mr. David Nee, Master Technician with GCL. Rodgers Environmental Services and Rodgers Plumbing Company of Albuquerque provided the equipment necessary to excavate each well head and complete the plugging requirements for the nine wells. Mr. Nee documented field activities with 35 mm photographs; representative photographs are provided in Appendix A.

GEAE obtained permission from the Environmental Protection Agency (EPA) to plug and abandon the following nine monitor wells:

• SJ6-01S • SJ6-02S, SJ6-02M • SJ6-03S, SJ6-03M

Preparatory Activities

SJ6-04S, SJ6-04M SJ6-06M P83-10S

9053022

llllilllllllilliillilillill

The monitor well locations are shown on Figure I. WeU completion specifications and analytical histories of each well were provided in the original scope of work, but the EPA required that samples be collected for volatile organic compounds (VOCs) and water quality (List #2 inorganics) prior to the abandonment of monitor wells SJ6-03M and SJ6-06M. Analytical results from these wells are presented in Appendix B; prior to abandoning those wells, verbal approval was obtained by GEAE from EPA to proceed with abandonment on the basis of the analytical results. None of the other seven wells were required to be sampled immediately prior to plugging and abandonment.

GCL had installed the monitor wells as part of the remedial activities for the Plant 83/GE and San Jose-6 operable units of the South Valley Superfiind site. Each of the nine monitoring wells were considered non-gravel envelope completions because the gravel pack around the screened interval extended a maximum of about 5 feet above the top of the screen, and was covered with a bentonite

019096

Mr. David L. Mayerson May 23, 1995

plug. The remaining annular space between the borehole and casing was filled with Portland cement-bentonite grout mixture emplaced to the surface when the wells were constructed. Where surface casing was installed, grout mixture had been emplaced in the annular space between the casing and the borehole. Consequently, it was not necessary to squeeze cement behind casing in any of the wells that were abandoned.

Prior to field activities, GCL reviewed each right of access contract and contacted (with assistance from GEAE) each landowner to verify access to plug and abandon wells on the properties.

Plugging and Abandonment Activities

All wells were measured for total depth using a well sounder, and none of the wells had significant fill that needed to be removed prior to plugging. A 1.5-inch diameter PVC tremie pipe was lowered to the bottom of each well, and a grout mixture comprised of Portland cement with 5% bentonite was emplaced through the tremie and brought to within 10 feet of the ground surface. Displaced groundwater from each well was then transferred to a truck-mounted tank and brought to the GE yard where it was placed in one of the 10,000-gallon wastewater storage tanks. The total, cumulative volume of wastewater so generated was approximately 200 gallons, and transfer of this water to the GE yard was documented in accordance with established yard procedures.

After all the wells were grouted to within 10 feet of the surface and allowed to set up, a backhoe was used to excavate each well head to a depth of 5 to 6 feet below the surface, at which depth the 4-inch casing in each well was cut off. The remainder of the wellbore was then topped off with grout, which was allowed to spill over the top of the cut casing and accumulate into a 6 to 10-inch cap at the bottom of the excavation. The only deviation from this procedure occurred at well SJ6-06M; the depth of the excavation there was limited to 3.5 feet, where the casing was cut off, because of proximity to near-surface underground utilities.

All well head material removed from each site was taken by Rodgers for disposal at an approved landfill. All well locations were back-filled with native soil and compacted, and the surface locations restored as closely as possible to their original conditions.

Please feel free to call me with any questions regarding the completion of this task.

Sincerely, Geoscience Consultants, Ltd. (GCL)

Louis J. ivlazzulld Project Manager

LJM/0459/P8301867.LTR

cc: Alberto A. Gutierrez, GCL John Billiard, Smith Environmental Technologies

019097

SJ6-04S

"^wrjo^ sroror-S J 6 - 0 6 M L _ ' ^ SJ-01

8ETHEL OR/V£" SJ6-10D

- I V i ! • , 0 ;

..;i. DMW-03

•IMW-05

PLWT 83

-:^

DMW-04

1/ / P83-108 . , / ;2^83-10D t ^

7 / ' I •• U l

p e J 6 - 0 2 M , SJ6-02D .

L3J6-03M

i ' S J 6 - 0 5 M \

03 /8J6-01S *~SJ5-01D

MILES-01 '2200 FEET EAST

J>

YALE MW-05 ~900 FEET EAST

/ >

^SJ6-01M WB-06 § ' ''

i UJ

5

WB-04

m i - o i !

DEEP ZONE MONITOR WELL

MUNICIPAL PRODUCTION WELL

A INACTIVE/PLUGGED PRODUCTION WELL

SCALE: 1"

600'

600'

GCL CLIENT: GEAE

DATE: 5 /26 /95

AUTHOR: BKL

CK'D BY: LJM

REV. NO.: 2

DRAWN BY: MP

FILE: PLGABND1.

FIGURE 1 GENERAL ELECTRIC

PLANT 83 MONITOR WELLS PLUQQED

AND ABANDONED IN MAY 1995 (WEUS IN BOUO PHINT)

019098

o

Appendix A

Figure Captions

019099

(1) Jackhammering equipment used to remove concrete well pads.

^-

(2) Backhoe used to excavate around each well head prior to cutting casing off below the surface.

019100

(3) Excavation typical of most abandoned wells, prior to emplacement of final grout cap.

(4) Final grout cap emplaced at SJ6-06M well site.

019101

o o

Appendix B

Analytical Results of Groundwater Samples from SJ6-03M and SJ6-06M

019102

o RECEIVED MAY 0 3 1995

CORE LABORATORIES

N €ORE-:IxABORM'ORilES: ::^

m-mm

GEOSGIENGE; cmsmjTim!S'/JM:i

5Q:5s-iy[ARQUETTEi :i\iwi |Sii:3:^iiia::p:g:; :: AliBUQUERQUE;:,:; :•- NM;

-Dat:e:::: 05:|d:2:|9i

871.Q;2:

1^222:^ t u r e

C^/L<^<^. ^y^y <f^c:P-9r Date

Name: L i n d a L. Benker s

T i t l e : QA/QG G o o r d i n a t o r

Gore L a b o r a t o r i e s 10703 E a s t Be thany D r i v e A u r o r a , GO 80014

The analyses, opinions or interpretatiofls contained in this report are based upon observations and malerial supplied t ^ the d ien i for whose exclusive and contidential use Ihis report has been made. The intarpretations or opiniorts expressed repre

sent the best judgment of Core LaCxHatones. Core Laboratones. however, assumes no responsibility and makes no wananty or representations, express or implied, aa to Ihe productivity, proper operations, or profitat>ienes$ of any o i l . gas . coat or

other mineral, property, welt or sand in connea ion with which such report is used or relied upon for any reason whatuMwoi' T K ; . «A»rf -».-» — • , _- ^

019103

GCL igs» Environmental Science

a n d Engineer ing

A BDM International Company

iS-A lbuquerque 505 Marquene NW, Ste. 1100 Albuquerque, NM 87102 (505) 842-0001 FAX: (505) 842-0595

Q Mid Atlantic Region 4221 Forbes Blvd., Ste. 240 Lanham. MD 20706-4325 (301)459-9677 FAX: (301) 459-3064

Q NASA-WSTF P O Drawer M M t-as Cruces. N M 88004 (505) 524-5353 FAX: (505) 524-5315

Chain of Custody , H i x - i ^ S Paoe V Ol '

Lab Name CORE UBQRATQRIES Address 1070'^ Ea.^t Bethany Drive

Aurora. CO 800U-2696 Telephone 303/751-1780

Samplers (SIGNATURES)

Sample Number Matrix Location

Analysis Request

Ss II Is

l l

li n > o

3 to ^1 o) in

"I ra cu

-"I il ^1 a. S 3t

O o

N:r

'Cl

/ ^5~PV/7£3f / j r ^ Z£L. $>:5-t. c-:^iry) y. y- 7 ^s -Q^n /o^^ v^^^ 5T<3 -oGno 2< X

^ $ " o W / 7 / o . a s ' ' M 7 ^ ^ 5 t : ' O C ? ' ^ 7 ^ Zl

Project Information

Project ^ ^prZ ^h- r^p

Project Director^ ^ ^ u - f ^ l U

Sample Receipt Relinquished By

Total No. of Containers

Chain of Custody Seals n- ( ^ > ^ ^ ' U l u ^ / ^

SL. (Sigfialure;

miy nJU.a.li^^

Relinquished By 2.

Signature) (Tima)

Relinquished By

(Signature) (Time)

C h a r g e C o d e N o . : ^ ^ . ^ ^ ^ ^ ^ ^ ^

Shipping ID. No.

Rec'd Good Condition/Cold at (Printed Name)

Conforms to Record

Via

m^ ^ C L (Oats) (Printed Name) (Date) (Printed Name)

Company) (Company) (Company)

- 3 : 2 ^ -b -UbNo. Received By Received By Received By (Laboratory)

(Dale)

f ^ CK Special Instructions/Comments:

q^ogg3 (Signature) (Time) (Signature) (Tims) onatur^ i _ - • i (Tiw (Signatun

/*%7<v>u. T^T 7 do. n"AT" (Printed Name) (Dale) (Printed Name) (Date) (Printed Name) ^ KDaie)

(Company) (Company) CUflh

(Latx>ratory)

Distribution: White, Canary-Laboratory • Pink, GCL

019104

o o

CORE LABORATORIES

Sample De l ive ry Group N a r r a t i v e

Apr i l 26, 1995

Customer: Geoscience C o n s u l t a n t s , Ltd. P r o j e c t : GE QTRLY SAMPLING COC #9031 Core L a b o r a t o r i e s P ro j ec t Number: 950883

The fo l lowing informat ion i s p e r t i n e n t _to the i n t e r p r e t a t i o n of t h i s da t a package.

Al l of the samples were r ece ived p a s t t h e EPA recommended h o l d i n g time of 48 hours for t h e a n a l y s i s of n i t r a t e - n i t r o g e n .

P a t r i c k J . McEntee Labora tory Superv isor

Linda L. Benkers QA/QC Coordina tor

The analyses, opinions or interpretations contained in this repon are based upon observations and material supplied by t tw d ient tor whose exdus i ve art f omtident ia l use this lepon has been made. The interpretatiOfis of opinions expressed repre

sent the besl judgment ot Core Laboratories. Core Laboratories, however, assumes na responsibility and makes no warranty or representations, express or implied, as to the productivity, proper operations, or profrtaWeoess ot any od, gas, coai or

other tntneral. property, well or sand in connection with wti ich such reoort is I K - H n* ^oi;—< ' - - -

019105

o

CORE LABORATORIES

Sample Delivery Group Narrative

May 2, 1995

Customer: Geoscience Consultants, Lt<i. Project: GE Qtrly Samplmg COC #9031 Core Laboratories Project Number: 950883

During the analysis and subsequent data review, it was noted that the dissolved iron value for sample 950883-001 (9504170915) was slightly greater than the total iron value. After reviewing the raw data, no definitive answer was found to explain the variance. The reported values were reverified from the raw data.

Crr^-'

Linda L. Benkers QA/QC Coordinator

Timothy L. Kellogg Laboratory Supervisor

' ^^ . 77

The analyses, opinions or mterpretaftoos contained in (tws reoort are based upon observations aod matenal supplied by the chent tor whose exclusive and con t iden t i ^ use ttiis report has been made. The interpretations or opinions expressed n

serii t tw bes l judgment of Core laborator ies. Core Laboratories, however, assumes no responsibility and makes no warranty or r e p r e s e n t a t i ^ ^ — " • ' " " ' '

019106

o o

CORE LABORATORIES

JOB: :NUMBER: : : :V950883: ; ; ; : : , ::::: CUSTOMER:

CLIENT I.D : GE QTRLY SAMPLING DATE SAMPLED : 04 /17 /95 TIME SAMPLED : 09:15 WORK DESCRIPTION...: 9504170915

TEST; DESGRtPTION:x :•

A l k a l i n i t y , Total ( F i l t . )

A l k a l i n i t y , Total ( U n f i l t . )

Bicarbonate ( F i l t . )

Bicarbonate ( U n f i l t . )

Bromide ( F i l t . )

Bromide ( U n f i l t . )

Carbonate ( F i l t . )

Carbonate ( U n f i l t . )

Chloride ( U n f i l t . )

Fluoride ( F i l t . )

Fluoride ( U n f i l t . )

Hardness, Total ( F i l t . )

Hardness, Total ( U n f i l t . )

Nitrogen, Ni t ra te ( F i l t , )

Nitrogen, Ni t ra te ( U n f i l t . )

Sol ids, Total Dissolved (TDS)

Sol ids, Total Suspended (TSS)

Sulfate ( F i l t . )

Sulfate ( U n f i l t . )

Aluminum, Diss. (Al )

Aluminum, Total (A l )

Antimony, Diss. (Sb)

L A B 0 R A T 0 R Y T E S T S 05/02/95

GEpSCIENCErCONSULTANTS, LTDvix •

COC #9031

F^iNAL;:;RESyLT;;;;-:

192

189

234

231

0.2

0.1

<1

<1

17.3

17.6

0.6

0.6

272

293

<0.1

<0.1

524

<4

166

172

<0.05

<0.05

<0.1

LIMITS/*DILUTIOM

5

5

5

5

0.1

0.1

1

1

0.5

0.5

0.1

0.1

1

1

0.1

0.1

10

4

10

10

0.05

0.05

0.1

R E S U L T S

::.. :VATTN:: :•:,;/:;.•:; ::-;;i|

LABORATORY I.D...: 950883-0001 DATE RECEIVED : 04/19/95 TIME RECEIVED : 09:45 REMARKS : SJ6-03M

UNITS OF MEASURE

mg/L CaC03

mg/L CaC03

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L(as CaC03)

mg/L(as CaC03)

mg/L (as N)

mg/L (as N)

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

TEST METHOD

310.1 (1)

310.1 (1)

2320 B (3)

2320 B (3)

300.0 (1)

300.0 (1)

2320 B (3)

2320 B (3)

325.2 (1)

325.2 (1)

340.2 (1)

340.2 (1)

6010 (2 ) / 2340B (3)

6010 (2 ) / 2340B (3)

353.2 (1)

353.2 (1)

160.1 (1)

160.2 (1)

375.2 (1)

375.2 (1)

6010 (2)

6010 (2)

6010 (2)

l/i^lililli; 04/21/95

04/21/95

04/21/95

04/21/95

04/20/95

04/20/95

04/21/95

04/21/95

04/25/95

04/25/95

04/21/95

04/21/95

04/26/95

04/26/95

04/19/95

04/19/95

04/20/95

04/20/95

04/24/95

04/24/95

04/20/95

04/24/95

04/20/95

ifECHN

RPK

RPK

RPK

RPK

SLS

SLS

RPK

RPK

DME

DME

SLS

SLS

TLK

TLK

DHE

DME

DHE

KDS

DME

DHE

GAG

GEF

GAG

10703 East Bethany Drive Aurora, CO 80014 (303) 751-1780

PAGE:1

The analyses, opinions or interpretations contained in this report are t>asad upon observations and matenal supplied by the d ien t for wtwse exclusive and confidential use this repon has t>een made. The interpretations or opinions expressed repre

sent the best judgment of Core Laboratories. Core Latora tor ies . however, assumes no responsibility and makes no warranty or representations, express or implied, as to the productivity, proper operations, or proftlabteness o( any oit. g a s . coal or

other mineral, property, well or sand in connection with which such report is used or relied upon tor any reascm wtialsoever. This f»Qort «haiJ nm »w> r««~*. .«w- j . : - ^ ^ . . -^

019107

o

CORE LABORATORIES

L A B O R A T O R Y T E S T S 05/02/95

R E S U L T S

JOB NUMBER:-; 9508834: CUSTOMER:

CLIENT I.D : GE QTRLY SAMPLING DATE SAMPLED : 04/17/95 iTIHE SAMPLED : 09:15 WORK DESCRIPTION...: 9504170915

1 TEST;:DESCRIPTION;;::;:: V '

Antimony, Total (Sb)

Arsenic, Diss. (As)

Arsenic, Total (As)

Barium, Diss. (Ba)

Barium, Total (Ba)

Beryl l ium, Diss. (Be)

Beryl l ium, Total (Be)

Calcium, Total (Ca)

Chromium, Diss. (Cr)

Chromium, Total (CD

Cobalt, Diss. (Co)

Cobalt, Total (Co)

Copper, Diss. (Cu)

Copper, Total (Cu)

I ron, Diss. (Fe)

I ron , Total (Fe)

Lead, Diss. (Pb)

Lead, Total (Pb)

Mercury, Diss. (Hg)

Mercury, Total (Hg)

: GEOSCIENCE::CONSULTANTS™ LTD*

COC #9031

FINAL RESULT

<0.1

<0.05

<0.05

0.05

0.05

<Q.005

<0.005

<0.005

<0.005

83.3

88.6

<0.01

<0.01

<0.03

<0.03

<0.01

<0.01

0.04

<0.03

<0.05

<0.05

<0.0002

<0.0002

LIMITS/ *OILUTION:

0.1

0.05

0.05

0.01

0.01

0.005

0.005

0.005

0.005

0.1

0.9

0.01

0.01

0.03

0.03

0.01

0.01

0.03

0.03

0.05

0.05

0.0002

0.0002

UNITS

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

: ; : M^^

LABORATORY I . D . . . : 950883-0001 DATE RECEIVED : 04/19/95 TIME RECEIVED : 09:45 REMARKS : SJ6-03M

OF HEASURE TEST METHOD

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

7470 (2)

7470 (2)

W^SSi 04/24/95

04/20/95

04/24/95

04/20/95

04/24/95

04/20/95

04/24/95

04/20/95

04/24/95

04/20/95

04/24/95

04/20/95

04/24/95

04/20/95

04/24/95

04/20/95

04/24/95

04/20/95

04/24/95

04/20/95

04/24/95

04/20/95

04/20/95

TECHN

GEF

GAG

GEF

GAG

GEF

GAG

GEF

GAG

GEF

GAG

GEF

GAG

GEF

GAG

GEF

GAG

GEF

GAG

GEF

GAG

GEF

BPB

BPB


PAGE:2

The analyses, opinions or interpretations contained in ttxis report are based upon obsenations and matenal supplied by the dient for wt>ose exclusive w l contidential use this report t>as been made. The inteipretations or opinions expressed repre*

sent the best judgment o( Ckire Laboratories. C^re Laboratories, however, assumes no responsibility and makes no waminty or representations, express or implied, as to ttw productivity, proper operations, or protitabfeness o* any oil. ^as, coal or

other mineral, property, well or sand in connection with which such reoort is ucort nr ran,^ •— - ' —

019108

o CORE LABORATORIES

JOB: NUMBER: 95QaSi22, '222:2 '•• CUSTOMER::.;

CLIENT I.D : GE QTRLY SAMPLING DATE SAMPLED : 04/17/95 TIME SAMPLED : 09:15 WORK DESCRIPTION...: 9504170915

TESTrDESCR I PT:I PN;:;;-:;:;;-:;;;: l l l l l :• ;v:^

jMagnesium, Diss. (Mg)

Magnesium, Total (Mg)

Manganese, Diss. (Hn)

Manganese, Total (Mn)

Nicke l , Diss. (Ni)

N icke l , Total (Ni)

Potassium, Oiss. (K)

Selenium, Diss. (Se)

Selenium, Total (Se)

S i l ve r , Diss. (Ag)

S i l ve r , Total (Ag)

Sodium, Diss. (Na)

Sodium, Total (Na)

Thall ium, Diss. (T l )

Thall ium, Total (T l )

Vanadium, Diss. (V)

Vanadium, Total (V)

Zinc, Oiss. (Zn)

Zinc, Total (Zn)

GE 8260 VOA EXTENDED LIST

Acetone Benzene Bromodichloromethane


GEOSCIENCE:CONSULTANTS, LTD.

COC #9031

FINAL RESULT

15.5

17.3

<0.01

<0.01

<0.04

<0.04

4.9

7.2

<0.005

<0.005

<0.01

<0.01

22.4

42.0

<0.1

<0.1

<0.05

<0.05

<0.01

0.01

ND ND NO

LIMITS/*DILUTION

0.1

0.1

0.01

0.01

0.04

0.04

0.1

0.1

0.005

0.005

0.01

0.01

1.0

1.0

0.1

0.1

0.05

0.05

0.01

0.01

*1

5 1 1

R E S

UNITS OF

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

ug/L ug/L ug/L

U L T S

ATTN:

LABORATORY I . D . . . : 950883-0001 DATE RECEIVED : 04/19/95 TIME RECEIVED. . . . : 09:45 REMARKS : SJ6-03H

MEASURE TEST HETHOD

6010 ( 2 )

6010 ( 2 )

6010 ( 2 )

6010 ( 2 )

6010 ( 2 )

6010 ( 2 )

7610 ( 2 )

7610 ( 2 )

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

8260 (2)

DATE

04/20/95

04/24/95

04/20/95

04/24/95

04/20/95

04/24/95

04/26/95

04/25/95

04/20/95

04/26/95

04/20/95

04/24/95

04/20/95

04/24/95

04/20/95

04/24/95

04/20/95

04/24/95

04/20/95

04/24/95

04/21/95

TECHN

GAG

GEF

GAG

GEF

GAG

GEF

GEF

BPB

GAG

GEF

GAG

GEF

GAG

GEF

GAG

GEF

GAG

GEF

GAG

GEF

BFR


PAGE:3

The analyses, opinions or interpretations contained in this report are based upon observatwns and mater ial supplied by the d i e n t tor whose e x d u s i M

sent the best judgment ol Core Laboratories. Core Laboratones. however, assumes no respons^Mtity and makes no warranty or representations.

other mineral , property, well or sand in connection with which such report is used or relied upon (or anv reason whataamt,^ T h i . «.>»< - K - H — .

d confidential use ttus report has been made. The interpretations or opinions expressed repre-

or imptied. as to ttte productivity, proper operat ions, or profitat i ierwss ot any oi l . gas. coal or

019109

o

CORE LABORATORIES

JOB NUMBERr::;950883 CUSTOMER:


TEST DESCRIPTION

Bromoform Bromomethane Carbon Disulfide Carbon Tetrachloride Chlorobenzene Chloroethane 2-Chloroethylvinyl ether Chloroform Chloromethane D i bromochIoromethane 1,1-Dichloroethane 1,2-Dichloroethane 1,1 -0 i chloroethene trans-1,2-Di chloroethene

cis-1,3-Dichloropropene

Ethylbenzene

2-Hexanone Methylene Chloride 2-Butanone Hethyl-t-butyl ether 4-HethyI-2-pentanone 1,1,2,2-Tetrachloroethane TetrachIoroethene Toluene 1,1,1 -Trichloroethane 1,1,2-Trichloroethane Trichloroethene Trichlorofluoromethane Vinyl chloride Xylenes-total Dibromofluoromethane (Surrogate) Toluene-d8 (Surrogate) 4-Bromofluorobenzene (Surrogate) Time Analyzed


GEOSCIENCE CONSULTANTS,; LTD,:;' ...

COC #9031

FINAL RESULT

ND ND ND ND ND ND NO ND ND NO 10 ND 2 ND NO ND ND NO ND ND ND ND ND ND ND ND NO ND NO ND NO ND ND

110 101 102 1732

LIMITS/*DILUTIOM

10

0 0 0 0

R E S U L T S

ATTN:


UNITS OF MEASURE

ug/L ug/L Ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L % Recovery X Recovery % Recovery

TEST METHOD

86-118% Limit 88-110% Limit 86-115% Limit


DATE TECHN

PAGE:4

The analyses, opinions or inierpretattocM contained in this report are based upon observations and material supplied by tt\e d ien t tor whose exclusive and contidential use this report has been made. Ttw interpretations or opinions expressed repre

sent the best judgment ot Core Laboratories. Core Laboratories, however, assumes no responsibility and makes no wananty or representations, express or implied, as to the productivity, proper operations, or profitableness o( any oi l . gas . coal or

other mineral, property, well or sand in connect ion with which such report is used or reliad imnn tnr anu ro=.=«« - * . » . -r.. .

019110

o CORE LABORATORIES

JtiB:NUMBERi::950883::; | | CUSTOMER:

CLIENT I.D : GE QTRLY SAMPLING DATE SAMPLED : 04/17/95 TIHE SAMPLED : 10:20 WORK DESCRIPTION...: 9504171020

TEST DESCRIPTION

A l k a l i n i t y , Total ( F i l t . )

A l k a l i n i t y , Total ( U n f i l t . )

Bicarbonate ( F i l t . )

Bicarbonate ( U n f i l t . )

Bromide ( F i l t . )

Bromide ( U n f i l t . )

Carbonate ( F i l t . )

Carbonate ( U n f i l t . )

Chloride ( F i l t . )

Chloride ( U n f i l t . )

Fluoride ( F i l t . )

Fluoride ( U n f i l t . )

Hardness, Total ( F i l t . )

Hardness, Total ( U n f i l t . )

Nitrogen, N i t ra te ( F i l t . )

Nitrogen, N i t ra te ( U n f i l t . )

Sol ids, Total Dissolved (TDS)

Sol ids, Total Suspended (TSS)

Sulfate ( F i l t . )

Sulfate ( U n f i l t . )

Aluminum, Diss. (Al )

Aluminum, Total (A l )

Antimony, Diss. (Sb)


: GEOSClENCE: e(DNSULTANTS;: ; l i T p | | ; | ;

COC #9031

FINAL RESULT

187

174

228

212

0.2

0.1

<1

<1

13.9

13.9

0.2

0.3

233

240

<Q.1

<0.1

492

<4

142

136

<0.05

0.13

<0.1

LIMITS/*DILUTION

5

5

5

5

0.1

0.1

1

1

0.5

0.5

0.1

0.1

1

1

0.1

0.1

10

4

10

10

0.05

0.05

0:1

R E S U L T S

|.':::.;.;.::V . . ; |ATtN.:

LABORATORY I . D . . . : 950883-0002 DATE RECEIVED : 04/19/95 TIHE RECEIVED : 09:45 REHARKS : SJ6-06H

UNITS OF HEASURE

mg/L CaC03

mg/L CaC03

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L(as CaC03)

mg/L(as CaC03)

mg/L (as N)

mg/L (as N)

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

TEST HETHOD

310.1 (1)

310.1 (1)

2320 B (3)

2320 B (3)

300.0 (1)

300.0 (1)

2320 B (3)

2320 B (3)

325.2 (1)

325.2 (1)

340.2 (1)

340.2 (1)

6010 ( 2 ) / 2340B (3)

6010 (2 ) / 2340B (3)

353.2 (1)

353.2 (1)

160.1 (1)

160.2 (1)

375.2 (1)

375.2 (1)

6010 (2)

6010 (2)

6010 <2)

DATE

04/21/95

04/21/95

04/21/95

04/21/95

04/20/95

04/20/95

04/21/95

04/21/95

04/25/95

04/25/95

04/21/95

04/21/95

04/26/95

04/26/95

04/19/95

04/19/95

04/20/95

04/20/95

04/24/95

04/24/95

04/20/95

04/24/95

04/20/95

TECHN

RPK

RPK

RPK

RPK

SLS

SLS

RPK

RPK

DHE

DHE

SLS

SLS

TLK

TLK

DME

DHE

DHE

KDS

DME

DME

GAG

GEF

GAG


PAGE:5

The analyses, opinions or interpretations contained in Ihis report are based upon observations and matenaf supplied by the client tor wt>ose exdus i ve and confidentiat use this report has beon made. The interpretatiorw or opinions expressed repr»-

senl the bes l judgment ot Core Laboratoriefl. Core Laboratones, however, assumes no respon»bitity and makes no warranty or represerrtations. express or implied, as to the productivity, proper operations, or protitat j iefwss ot any o i l . gas . coal o r

other mineral , property, wel l or sand io connection with wt>icn such report is used or rel ied upon ior any reason wtwtsoever. This report shait not t>e reproduced except in its entirety, witttout me written ai»rovj«i n i r .^™ i «»««»««—

019111

o o

CORE LABORATORIES

JOB N U H B E R I I 5150883 CUSTOMER:

CLIENT I.D : GE QTRLY SAMPLING DATE SAMPLED : 04/17/95 TIHE SAMPLED : 10:20 WORK DESCRIPTION...: 9504171020

TEST DESCRIPTION

Antimony, Total (Sb)

Arsenic, Diss. (As)

Arsenic, Total (As)

Barium, Diss. (Ba)

Barium, Total (Ba)

Beryl l ium, Diss. (Be)

Beryl l ium, Total (Be)

Calcium, Total (Ca)

Chromium, Diss. (Cr)

Chromium, Total (Cr)

Cobalt, Diss. (Co)

Icobalt , Total (Co)

rCopper, Diss. (Cu)

1 Copper, Total (Cu)

I ron, Diss. (Fe)

i l ron . Total (Fe)

Lead, Diss, (Pb)

Lead, Total (Pb)

Mercury, Oiss. (Hg)

Mercury, Total (Hg)


GEOSCIENCE CONSULTANTS, LTD.

COC #9031

:F;INALi;;RESIJt;T:|:||

<0.1

<0.05

<0.05

0.04

0.04

<0.005

<0.005

<0.005

<0.005

71.5

72.7

<0.01

<0.01

<0.03

<0.03

<0.01

<0.01

0.04

0.03

<0.05

<0.05

<0.0002

<0.0002

LIMITS/*DILUTION

0.1

0.05

0.05

0.01

0.01

0.005

0.005

0.005

0.005

0.1

0.9

0.01

0.01

0.03

0.03

0.01

0.01

0.03

0.03

0.05

0.05

0.0002

0.0002

R E S

UNITS OF

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

U L T S

ATTN:

LABORATORY I . D . . . : 950883-0002 DATE RECEIVED : 04/19/95 TIHE RECEIVED....: 09:45 REHARKS : SJ6-06H

;MEASU(?E;:::.;:|; TEST METHOD

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

7470 (2)

7470 (2)

DATE

04/24/95

04/20/95

04/24/95

04/20/95

04/24/95

04/20/95

04/24/95

04/20/95

04/24/95

04/20/95

04/24/95

04/20/95

04/24/95

04/20/95

04/24/95

04/20/95

04/24/95

04/20/95

04/24/95

04/20/95

04/24/95

04/20/95

04/20/95

TECHN

GEF

GAG

GEF

GAG

GEF

GAG

GEF

GAG

GEF

GAG

GEF

GAG

GEF

GAG

GEF

GAG

GEF

GAG

GEF

GAG

GEF

BPB

BPB


PAGE:6

The analyses, opinions or interpretations contained in this report are based i^xjn otjservations and matenal supplied by the d ien t lor whose exdus ive and confidential u:

sem the best judgment of Core Laboratones. Core Laboratories, however, assumes no responsit^ility and makes no warranty or representations, express or implied, as ti

other tnineral. property, weU or sand in connection with wtuch such report is used o t rel ied upon tor any reason whatsoever. This reocwi «haii n n t K n , a « ~ . •

a this report has been made. The interpretations or opinions expressed repre-

ttte productivity, proper operations, or profitableness of any oi l . gas , coai or

019112

o o CORE LABORATORIES

JOB NUMBER: 950883 CUSTOMER:


TEST DESCRIPTION

Magnesium, Diss. (Mg)

Magnesium, Total (Hg)

Manganese, Oiss. (Mn)

Manganese, Total (Mn)

Nicke l , Diss. (Ni)

Nickel , Total (Ni)

Potassium, Diss. (K)

S i lver , Diss. (Ag)

S i lver , Total (Ag)

Sodium, Diss. (Na)

Sodium, Total (Na)

Thall ium, Diss. (T l )

Thall ium, Total (T l )

Vanadium, Diss. (V)

Vanadium, Total (V)

Zinc, Diss. (Zn)

Zinc, Total (Zn)


Acetone Benzene Bromodichloromethane



COC #9031

FifUL;:RESyLT::::|;:|

13.2

14.1

<0.01

<0.01

<0.04

<0.04

7.4

7.2

0.005

<0.005

<0.01

<0.01

29.5

41.5

<0.1

<0.1

<0.05

<0.05

<0.01

<0.01

ND ND ND

LIMITS/*DILUTIOM

0.1

0.1

0.01

0.01

0.04

0.04

0.1

0.1

0.005

0.005

0.01

0.01

1.0

1.0

0.1

0.1

0.05

0.05

0.01

0.01

*1

5 1 1

R E S

UNITS OF

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

mg/L

ug/L ug/L ug/L

U L T S

ATTN:

LABORATORY I . D . . . : 950883-0002 DATE RECEIVED : 04/19/95 TIHE RECEIVEO : 09:45 REMARKS : SJ6-06M

MEASURE TEST HETHOD

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

7610 (2)

7610 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

6010 (2)

8260 (2)

:P*lilii:i 04/20/95

04/24/95

04/20/95

04/24/95

04/20/95

04/24/95

04/26/95

04/25/95

04/20/95

04/26/95

04/20/95

04/24/95

04/20/95

04/24/95

04/20/95

04/24/95

04/20/95

04/24/95

04/20/95

04/24/95

04/21/95

TECHN

GAG

GEF

GAG

GEF

GAG

GEF

GEF

BPB

GAG

GEF

GAG

GEF

GAG

GEF

GAG

GEF

GAG

GEF

GAG

GEF

BFR


PAGE:7

The analyses, opinions or interpretatKMis contained in tt^s report are based upon observa lons and material supplied by the d ier t i for whose exdus ive and confkJential use this report has been made. The interpretations or opinions expressed repre

sent the bes l judgmem ot Core Laboratories. Core Latioratories. however, assumes no responsibil ity and makes no wanvnty or representations, express or implied, as to the producttvity, proper operations, or proli iati lertess ot any oH, gas. coal or

other mtneral. property, well or sand in connection with which such report is used or relied upon for any reason whatsoever. This report shall not be reortxluced axcaot in JM <««*«-« - ^ . K — «. . . .

019113

« " » CORE LABORATORIES

JOB: NUMBER: :::950883 CUSTOMER:


TEST DESCRIPTION

Bromoform Bromomethane Carbon Disulfide Carbon Tetrachloride Chlorobenzene Chloroethane 2-Chloroethylvinyl ether Chloroform Chloromethane Dibromochloromethane 1,1 -D i chIoroethane 1,2-Dichloroethane 1,1-Dichloroethene trans-1,2-DichIoroethene

cis-1,3-Dichloropropene

Ethylbenzene

2-Hexanone Methylene Chloride 2-Butanone Methyl-t-butyl ether 4-Methyl-2-pentanone 1,1,2,2-Tetrachloroethane Tetrachloroethene Toluene 1,1,1-Trichloroethane 1,1,2-Trichloroethane Trichloroethene Trichlorofluoromethane Vinyl chloride Xylenes-total Dibromofluoromethane (Surrogate) Toluene-d8 (Surrogate) 4-Bromofluorobenzene (Surrogate) Time Analyzed



COC #9031

FINAL RESULT

ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NO ND ND ND ND ND ND ND ND ND ND NO NO NO ND ND

110 100 102

1809

LIMITS/*DILUTION

1 1

10

0 0 0 0

R E S U L T S

ATTN:


UNITS OF HEASURE

ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L % Recovery % Recovery % Recovery

TEST METHOD



DATE TECHN

PAGE:8

The analyses, opinions or interpretatioris contained in this report are based upon observations and material supplied Dy the d ien t lor whose exdus ive and confidential use this report has been made. Tho interpretattons or opinions expressed repre-

seni the best judgment of Core Laboratones. Cora Laboratories, however, assumes no responsibility and makes no wananty or representations, express or implied, as to the productivity, proper operat ions, or profi tableness of any oi l . gas . coa l or

other mineral, property. weH of sand in con rwd ion with which such report is used or relied upon lor anv reason w h a ^ j T * ! * * Thi« » . » . • - ^ - H — . •

019114

o CORE LABORATORIES

JOB::; NUMBER:. 950883 ;: , .i: I CUSTpMER:;;

CLIENT I.D : GE QTRLY SAMPLING DATE SAMPLED : 04/17/95 TIHE SAHPLED : 10:25 WORK DESCRIPTION...: 9504171025

TEST DESCRIPTION


Acetone Benzene Bromodichloromethane Bromoform Bromomethane Carbon Disulfide Carbon Tetrachloride Chlorobenzene Chloroethane 2-Chloroethylvinyl ether Chloroform Chloromethane D i bromochloromethane 1,1-Di chIoroethane 1,2-Dichloroethane 1,1-Dichloroethene trans-1,2-Dichloroethene 1,2-Dichloropropane cis-1,3-Dichloropropene t rans-1,3 -D i ch I oropropene Ethylbenzene 1,2-Dibromoethane 2-Hexanone Hethylene Chloride 2-Butanone Methyl-t-butyl ether 4-Hethyl-2-pentanone 1,1,2,2-Tetrachloroethane Tetrachloroethene Toluene 1,1,1 -Trichloroethane 1,1,2-Trichloroethane Trichloroethene Trichlorofluoromethane Vinyl chloride Xylenes-total Dibromofluoromethane (Surrogate) Toluene-d8 (Surrogate) 4-Bromofluorobenzene (Surrogate) Time Analyzed



COC #9031

FINAL RESULT

6 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NO ND ND ND NO ND ND NO ND ND ND NO ND NO ND ND ND ND ND ND

109 102 104 1846

LIMITS/*DILUTION

*1

10

1 0 0 0 0

R E S U L T S

ATTN:

LABORATORY I.O...: 950883-0003 DATE RECEIVED : 04/19/95 TIHE RECEIVED....: 09:45 REMARKS : SJ6-06H

UNITS OF HEASURE

ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L % Recovery % Recovery % Recovery

TEST HETHOD

8260 (2)



DATE TECHN

04/21/95 BFR

PAGE:9

The analyses, opinions or interpretations conta i fwd in this report are based upon observations and material supplied by v t * d ien t lor whose exdus ive and confidentiat use th is report has been made. The interpretations or opinior is expressed repre

sent the best judgmeni of Core Latioratories. Core Laboratories, however, assumes no responsibility and makes no warranty or representations, express or impl ied, as to the productivity, proper operat ions, or profitab(er»ess"o* arty o i l , gas . coal or

other mineral, property, well or sand in conned ion wi lh which such report is used or rel ied upon tor any reason whatsoever. This report shall not be reomrturart »-.~<»<.« ;«. — « ™ - . . N-J**—• - ^

019115

CORE LABORATORIES

QUALITY CONTROL FOOTER

METHOD REFERENCES

(1) EPA 600/4-79-020, Msthods For Chemical Analysis Of Water And Wastes, March 1933

(2) EPA SW-846, Test Methods For Evaluating Solid Waste, Third Edition, November 1986

(3) Standard Methods For Tha Examination Of Water And Wastewater, 17th Edition, 1989

(4) EPA 600/4-80-032, Prescribed Proceduras For Measurement Of Radioactivity In Drinking Water, August 1980

(5) EPA 600/8-78-017, Microbiological Methods For Monitoring Thn Environment, December 1978

(6) Federal Register, July 1, 1990 (40 CFR Part 136)

(7) EPA 600/4-88-039, Methods For Tha Determination Of Organics Compounds In Drinking Water, December 1988

(8) U.S.G.S. Methods For The Determination Of Inorganic Substances In Water And Fluvial Sediments, Book 5, Chapter A t , 198S

(9) Federal Register, Friday, June 7, 1991, (40 CFR Parts 141 and 142)

(10) Standard Methods For The Examination Of Water And Wastewater, 16th Edition, 1985

(11) ASTM, Section 11 Water And Environmental Technology, Volume 11.01 Water (1), 1991

(12) Methods Of Soil Analysis, American Society Of Agronomy, Agronomy No. 9, 1965

(13) EPA SW-846, Test Methods For Evaluating Solid Waste, Third Edition, Revision 1, November 1990

(14) ASTM, Section 5, Petroleum Products, Lubricants, and Fossil Fuels, Volume 05.05, Gaseous Fuels, Coal and Coka

(15) EPA 600/2-78-054, Reld and Laboratory Methods Applicable To Overburdens and Mine Soils, March 1978

(16) ASTM, Pan 19, Soils and Rock; Building Stones, 1981

Comments: Data in QA report may differ from final results due to digestion and/or dilution of sample into analytical ranges.

The "Time Analyzed' in the QA report refers to the start time of tha analytical batch which may not refleot the

actual time of each analysis. The 'Date Analyzed' Is tha actual date of analysis. Results for soil and sludga

samples are reported on a wet weight basis (i.e. not corrected for percent moisture) unless otherwise indicated.

NC = Not Calculable Due To Value(s) Lower Than The Detection Limit.

Blank OC Sample Identification

MB Method Blank

ICB Initial Calibration Blank

CCB Continuing Calibration Blank

Reference Standard QC Sampla Identification

LCS Laboratory Control Standard

RS Reference Standard

ICV Initial Calibration Verification Standard

CCV Continuing Calibration Verification Standard

ISA/ISB ICP Interference Check Samples

Spike QC Sample Identification

MS Method (Matrix) Spike

MSD Method (Matrix) Spike Duplicata

PDS Post Digestion Spike

SB Spiked Blank

SBO Spiked Blank Duplicata

Duplicate QC Sample Identification

MO Method (Matrix) Duplicata

ED Extraction Duplicate

DO Digestion Duplicate

Analyses performed by a subcontract laboratory are indicated on the analytical and/or quality control reports under

"Technician' using the following codes:

Subcontract Laboratory Code

Cora Laboratoriea - Anaheim, CA * AN

Cora Laboratories - Caspar, WY * CA

Cora Laboratories • Corpus Christi, TX * CC

Core Laboratoriea - Houston, TX • HP

Subcontract Laboratory

Cora Laboratories - Laka Charias, LA

Cora Laboratorias • Long Beach, CA

Other Subcontract Laboratorias

Coda

• LC

• L B

• XX

10703 East Bethany Orh/a Aurora, CO 80014 (3031751-1780

The analyses, opinions or interpretations contained in this report are based upon observations and material supplied by the d ient lor whose exduswe and confidential use this report has been made. Tfte interpretations or opiraans expressed repre

sent the best judgmeni of Core Laboratones. Core Laboratories, however, assumes no responsibil ity and ittakes no wananty or representations, express or implied, as to t tw productivity, proper operabona. or protitableness ot w i y od. gas. c o i or

other mineral , property, well or sand in conned ion with which such report is used or rel ied upon for any reason whatsoever. This reoort shall not be reproduced except in its entiretv. without the wrttten aooravat of Core L a b o r a i a h M .

019116

[discussing san jose 6 and plant 83 monitor well plugging

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