GEI Consultants, Inc. · document, Samplin angd Analysis Plan (SAP fo) r On-Site Ground Water Discharge Evaluation. for the site, dated Jun 16e, 199 2 (GEI Project Numbe 89136)r

GEI Consultants, Inc. .

Suffolk Building 53 Regional Drive Concord, NH 03301-8500

603-224-7979

June 7, 1994 Project 92113

Mr. James DiLorenzo Londonderry Remedial Project Manager US Environmental Protection Agency Waste Management Division JFK Federal Building HSN-CAN5 Boston, MA 02203

Subject: Tinkham Garage Site Management of Migration Water Quality Sampling Quarter 1 - June 1994

Dear Mr. DiLorenzo:

Based on our May 25, 1994 telephone conversation, GEI Consultants, Inc. (GEI) has scheduled the week of June 13, 1994 to initiate the Management of Migration (MOM) water quality monitoring program at the Tinkham Garage Site (site) in Londonderry, New Hampshire. Because the draft interim MOM Work Plan for ground water monitoring will be submitted while sampling is in progress, GEI proposes to conduct the Quarter 1 (Spring 1994) sampling event for volatile organic compounds (VOCs) hi general accordance with the prior EPA-approved document, Sampling and Analysis Plan (SAP) for On-Site Ground Water Discharge Evaluation. for the site, dated June 16, 1992 (GEI Project Number 89136). The following modifications to the June 1992 SAP are proposed:

• The MOM water quality monitoring program's sampling and data quality objectives are specifically outlined in the draft interim MOM Work Plan. These objectives, as drafted, take the place of the 1992 Sampling and Data Quality Objectives (Section 2). The data obtained from the water quality monitoring program will be used to evaluate concentrations of VOCs present in site ground water as the MOM remedy is implemented. Wells with detectable Total VOC results from the Quarter 1 sampling will be resampled in Quarter 2. The data quality objectives of representativeness and comparability are emphasized for the MOM monitoring program.

Winchester, Massachusetts L\.n\ er, Colorado Carlsbad, California Raleigh, North Carolina

Mr. James DiLorenzo - 2 - June 7, 1994

The site-specific Health and Safety Plan (HSP) of the June 1992 document will be revised to reflect the current GEI staffing for the sampling event. Section 6 of the HSP, Decontamination and Disposal, will have all references to decontamination with methanol removed. Alconox detergent will be used in place of methanol. We do not plan to containerize water purged from wells or water used for equipment decontamination.

Samples will be collected from the 56 wells designated in Table 4 of the draft interim MOM Work Plan (see attached). Well locations are shown on the draft Figure 2 (attached). Also attached for reference is the draft well summary table (Table 1) of the draft interim Work Plan document. The wells which will not be sampled in Quarter 1 of the water quality monitoring program are shown "shaded" in Table 4. GEI borings and well installations performed in 1992 were not intended for the purpose of ground water sampling. As such, they have been excluded from the water quality monitoring program. The reasons the "shaded" wells in Table 4 are not to be sampled include; the wells have been destroyed or have not been found; or the wells are currently non-functional for water quality sampling and require rehabilitation. Wells in strategic locations which have less than 75 percent of their screened or open-hole intervals open will be rehabilitated. Wells FW-11 and NAI-B will be proposed for rehabilitation (i.e., to reopen more of the installed screened section) between Quarter 1 and Quarter 2 (August 1994) of the water quality monitoring program sampling events. Other well rehabilitations, or exclusions from the water quality monitoring program, will be proposed based on the results of the Quarter 1 sampling.

Quarter 1 water quality samples will be collected by disposable PVC bailers for EPA Method 624 or Contract laboratory Program (CLP) Statement of Work (SOW) VOC analysis. The analyses will be performed by National Environmental Testing, Inc., Cambridge Division (NET), in Bedford, Massachusetts. The Quality Assurance Project Plan (QAPP) presented in the draft interim MOM Work Plan for water quality monitoring will supersede the June 1992 Appendix B QAPP where appropriate. NET's Laboratory Quality Assurance Plan (LQAP), Revision 4, dated April 15, 1994, and Standard Operating Procedure (SOP) for Volatile Organic Analysis of Aqueous Samples by Purge and Trap/Capillary or Packed Column Gas Chromatography/Mass Spectrometry, dated May 11, 1994, are provided in the MOM Work Plan and will be followed for the Quarter 1 water quality monitoring program analytical work. Tables 7.1 (pages 3 and 4, of 14) and 9.1 (pages 2 and 3, of 19) of the LQAP contain Quality Control Objectives, and Analytes and Reporting Limits, for Method 624 and CLP 3/90 SOW analyses as performed by NET.


• Section 5, Sampling Equipment and Procedures, of the June 1992 document will be modified to include development for sampling of deep bedrock wells by a continuous (15 minute), slow (5 to 10 gallons per minute), single-depth purge of the well with a submersible pump (as proposed in the draft interim MOM Work Plan for water quality monitoring program sampling of deep bedrock wells). This method of well development is used by GEI for bedrock well sampling at another superfund site. The VOC samples will be collected from the developed-depth with disposable bailers. The length of tubing used to reach the development-depth (within the bottom one-third of the well) will be dedicated to the well. Should the water level in the well be lowered to the depth the pump has been set at, additional tubing will be added to the setup to lower the pump to within 90 percent of the total open well depth and the well's development will be continued for an additional 15 minutes at 5 to 10 gallons per minute or until the well goes dry. Decontamination of the pump will be performed with Alconox-soap solution washes and water rinses. One submersible pump equipment blank sample will be collected for every 10 uses of any pump used to develop wells for sampling.

• Section 7 of the 1992 document, Data Evaluation and Reporting, will be superseded where appropriate by the data evaluation and reporting requirements as presented in the draft interim MOM Work Plan. All VOC samples collected in Quarter 1 will provide Level III analytical data (OSWER Directive 9355.0-78) and will be reviewed for data completeness, holding times, blank analyses, duplicate analyses, matrix spike and surrogate spike analyses, laboratory control sample analysis, and reporting limits. Ten percent (10%) of the wells sampled in Quarter 1 will have split samples collected for Level IV CLP SOW VOC analysis. A Level IV data validation will be performed on the laboratory CLP deliverables.

• Section 8, Schedule, of the 1992 document will be revised as follows:

1. Collection of MOM water quality monitoring program samples for Quarter 1 is scheduled for June 13, 1994, provided EPA's/New Hampshire Department of Environmental Services' approval is given to proceed as outlined in this letter.

2. Analysis and reporting of analytical results by NET to GEI will be completed within three weeks following the completion of the Quarter 1 water quality monitoring program's sampling event.

3. Deleted.

Analysis of samples from the relatively large number of wells which we propose to sample in Quarter 1 will provide current, comprehensive, baseline data of ground water quality at the site. GEI will propose specific wells for rehabilitation or deletion from the MOM water quality monitoring program as soon as we move past the first quarter's water quality sampling. The next three sampling quarters (Quarter 2, August 1994; Quarter 3, November 1994; and


Quarter 4, February 1995), prior to the one year anniversary sampling (Quarter 5; May 1995), will include sampling only those wells with detected VOC results. As you know, the MOM water level monitoring program has also begun.

We collected the second month of water level data on June 1, 1994. The monthly water level monitoring of all functional site wells will continue to be scheduled for the first week of each month.

Please call me if you have any questions.

Sincerely,

GEI CONSULTANTS, INC.

Robert A. Mullin, P.E. Project Manager

RAM:RVE/cab

(also faxed this date)

cc: Ms. Diane Leber Enclosure

TABLE 1 - SUMMARY OF MONITORING WELL CONSTRUCTION AND SAMPLING INFORMATION Management of Migration Tlnkham Garage Site Londonderry, New Hampshire

Well No

FW-01

FW-02

FW-02D

FW-03

FW-03D

FW04

FW05

FW-06

FW-07

FW-08

FW-08D

FW-09

Type of Well

overburden/shallow bedrock

shallow bedrock, gradient couplet

intermediate bedrock, gradient couplet



shallow bedrock

shallow bedrock

shallow bedrock

overburden, pond water level measure




Relationship to Site Installed Contamination, By and Location1"

Upgrad , 750' NE oftfl* Garage soils, NUS/FIT near the Tinkham fealtyBIgg 1983

1525' WSW ofXne Sarage\soik, NUS/FIT Off McAlltste/ Dnye / J 1983

1 525' WSW of the. Garage stills, / Nqs/FiT Off McAllister 1X^30' N .of FW-02/ 'NS983X

/ <. 1 075' WSW of Garage soils, / ~ -WUS/FJT between Mercury & McAllister Dr? > 1983/

^y 1075' WSW of the Garage soils, / NUS/FIT between Mercury & McAllister Drs \ /1 983 /

/"

1 100' SW of the Garage soils, NUS/FIT Mercury Dnve adj to ERT 02 1983

825' SW of the Garage soils, NUS/FIT Mercury Dnve ad) to ERT-01 1983

1600' Sw of the Garage soils, NUS/FIT Mercury Dnve adj to LGSW 1983

1700' SW of the Garage soils, NUS/FIT 150' SSEof well LGSW 1983

1475' SW of the garage soils, NUS/FIT 300' E of LGSW 1983

1475' SW of the Garage soils, NUS/FIT 300' E of LGSW 1983

600' W of the Garage soils, NUS/FIT 100' WSW of Tinkham Garage 1983

Construction

1 5" PVC

1 5" PVC

6" open hole

1 5" PVC

6" open.hole

, / /

1,5" PVC

/

/1 3" PVC / .

/ ' 1 5" PVC

1 5" PVC

1 5" PVC

6" open hole

1 5" PVC

Measunng Point Elm

Steel (S) or PVC (P),

(ft)

32779

29505

29717

29222

_(S|

29123 X

r \ 283,68

271 09

262 15/ /

27368

174 15

30743

Depth to Bottom

(ft)

402

255

101 0

230

1020

301

303

275

/X "> 45

29 1

1020

360

Approx Wetted

Vol (gal)

3

2 3

144

1 7

50

89

24

1 9

-

2

141

27

Most Recently Reported

VOCs fall) [date]

ND [02/13/92]

ND [12/18/84]

[07/01/83]

ND [01/03/85]

ND [04/02/85]

169 [12/27/84]

194 [12/27/84]

5 [12/26/84]

ND [12/27/84]

ND [12/18/84]

59 [12/18/84]

ND [02/13/92]

Sampling Equipment

g|3|

B

P,B'"

B

P.B

B

B

B

-

B

P,B

B

Project 92113 MOM SAP, Volume I of II FSP GEI Consultants, Inc Page 1 of 8 Revision 0, June 6, 1994

TABLE 1 - SUMMARY OF MONITORING WELL CONSTRUCTION AND SAMPLING INFORMATION Management of Migration Tinkham Garage Site Londonderry, New Hampshire

Well No Type of Well

Relationship to Site Contamination, and Location1'1

Installed By

Construction

FW-10 overburden, gradient couplet

600' S of the Garage/Sods, Off the dirt road / N^

NUS/FIT 1983

1 5" PVC

FW-10D shallow/intermediate bedrock, gradient couplet

6001 S of the GaragesoilsKOff the dirt ro&d / j

\ )

NUS/FIT 1983

6" open hole

FW-11

FW-11D

FW-12

FW-13

overburden, gradient couplet

shallow/intermediate bedrock, gradient couplet

shallow/intermediate bedrock,

overburden

6001 SE oi She Garage, soils/ / Off the dirt road^ ^X /

/ < 600' SE of the Garage soils, / ~ Off the dirt road < /

\/ 11 00' SSE of the Garage soils, / Off the dirt road <

1100' SSE of the Garage soils, Mercury Drive adj to ERT-01

NCJS/FIT -4983,

^NUS/F)T igja7

^US/FIT /1983

f

NUS/FIJ 1983

1 5" PVC

6" open hole

1 5""PVC

- / /

1,5" PVC

FW-14

FW-14D

overburden/shallow bedrock, gradient couplet

intermediate/deep bedrock, gradient couplet

1025' S of the Garage soils, Off the dirt road

1125' S of the Garage soils, Off the dirt road

NUS/FIT 1983

NUS/FIT 1983

/I S" PVC /

' // /

6" open hole

r

FW-15 overburden/shallow bedrock, gradient couplet

3200' SW of the Garage soils, 300' W of Bldg s K,L

NUS/FIT 1983

1 5" PVC

FW-15D intermediate/deep bedrock, gradient couplet

3200' SW of the Garage soils, 300' W of Bldg s k.L

NUS/FIT 1983

6" open hole

FW-18 overburden/shallow bedrock 2450' SW of the Garage soils, Capital Hill Or , adj to ERT-06

NUS/FIT 1983

1 5" PVC

FW-17 overburden/shallow bedrock 2650' SSW of the Garage soils, Capital Hill Or along the unnamed tributary

NUS/FIT 1984

1 5" PVC

Measuring Point Elm

Sleel (S) or PVC (P),

(ft)

291 55

29248

28280

28324

27963

27986

/^ ^. -?72,66

? / ' 281 67

/

284 29/

/ / < /

28608

25543

23345

Depth to Bottom

(«)

285

101 0

240

101 0

758

200

440

2050

/^- ) 370 '

2050

280

427

Approx Wetted

Vol (gal )

21

120

2

130

64

1 4

38

287

22

271

22

37


VOCs to/L) [date]

ND [02/14/92]

ND [12/27/84]

1,074 [12/10/87]

268 [12/24/84]

ND [12/26/64]

ND [12/26/84]

ND [12/27/84]

10 [12/31/84]

ND [12/18/84]

ND [12/18/84]

278 [02/01/90]

79 [02/18/84]

Sampling Equipment

B

P.B

B

P.B

B

B

-

P.B

B

P.B

B

B

Protect 92113 MOM SAP, Volume I of II FSP GEI Consultants, Inc Page 2 of 8 Revision 0, June 6, 1994


Well No

FW-18

FW-19

FW-20

FW-21

FW-21D

FW-22

FW-22D

FW-23

FW-23D

FW-24

Type of Well

overburden

overburden


overbuden/shallow bedrock. gradient couplet



Intermediate/deep bedrock. gradient couplet




Relationship to Site Contamination, and Location'1'

2100' SW of the Garage soils, Constitutional Dr acrossfrom BldgsE.F / /\\

2225' SSW ofthyGarage loilJ. Constitutio/fal Dr across from/ / Bldg s E,F\ \_^/ / /

600' E of the Garage soils / <^

/ /^. < / ^

2225' SW of Garage the soils, ' Capitol Hill Dr , N of ERT-06 /

X 2275' SW of the Garage soils, Capitol Hill Dr . N of ERT-06

2000' S of the Garage soils, 200' E of Bldg s C,D

2000' S of the Garage soils, On strike with LGAW, 250 S of the Soil Pile

1700' SSW of the Garage soils, Behind the tennis courts, 225' NW of the Soil Pile

1750' SSW of the Garage soils, Behind the tennis courts, 150' NWof the Soil Pile

1900' SW of the Garage soils, Off Constitutional Dr , ad] to well ERT-03

Installed By

NUS/FIT 1984

NUS/FIT \1984

\

^bS>|T --J984 /

S

SUS/FIT /I984

1 /NUS/FIT 19§4 /

NUS/FIT 1984

NUS/FIT 1984

NUS/FIT 1984

NUS/FIT 1984

NUS/FIT 1984

Construction Measunng Point Elm


(ft)

1 5" PVC 25390

1 5" PVC 24921

1 5" PVC 281 61

1 5" PVC /

/I I6",opeh hole -I 1

^1 5/PVC /

< 7 /6" opefi hole

;

1 5" PVC

6" open hole

*

25843

25749

25,377 >

/ 253 54/ X

/

270 22// /

/ /

26073

1 5" PVC 25709

Depth to Bottom

(ft)

190

165

480

21 2

2050

200

2050

\

259

2050

285

Appro* Wetted

Vol (gal)

1 3

12

4 3

1 6

artesian

1 6

294

1 1

285

26


VOCs (jig/L) [date]

5 [12/18/84]

5,637 [12/26/84]

3805 [12/17/93]

11 (12/26/84)

966 [02/01/90]

NO [12/17/84]

ND [12/17/84]

ND [12/17/84]

ND [12/26/84]

ND [12/17/84]

Sampling Equipment

B

B

B

B

P,B

B

P.B

B

P.B

B


TABLE 1 - SUMMARY OF MONITORING WELL CONSTRUCTION AND SAMPLING INFORMATION Management of Migration Tinkham Garage Site Londonderry, New Hampshire


Relationship to Site Contamination, and Location1"

Installed By

Construction Measunng Point Elm


(ft)

FW-24D Intermediate/deep bedrock, gradient couplet

1900' SW of the Garag^ soils, Off Constitutional Dr, adj^to well ERT-03 / /\\

NUS/FIT 1984

6" open hole 25829


1325' ESE o/lhe/Garage sjoilsj On the dirVroad'off of the/curveof Ross DrNp GHcrest-Rd /

/ /

NUS/FIT \1984

X 1 5" PVC 28533

FW-25D intermediate/deep bedrock, gradient couplet

1375' ESE of Ihe Garage soils, / ^ On the dirt road off of the curye ~ of Ross Dr to Gilcrest Rd / / x

Ntys/fVr 09b4 }

, 6" open hole 28244


Upgrad , 800' ENE of Garage soils, / Edge of field behind the orchard V,

NUS/FIT / 1984

1 5" PVC 28540

FW-26D

FW-27



Upgrad , 975' ENE of Garage soils, 225' NE of well FW-26, on stnke with FW10D and FW08D

400' SE of the Garage soils

NUS/FIT 1984

NUS/FIT 1984

6/open hole 7

/ / 1/5" PVC ' /

/ /

/ 291 76

N\ 28633

"> f

FW-28D intermediate/deep bedrock 1400' SE of the Garage Soils, on stnke with well LGAW. 'tagger* well for Ross Dr

NUS/FIT 1984

6" open hole 272 32 /

ERT-01 inermediate/deep bedrock 875' SW of the Garage soils, Off Mercury Dnve

EPA/ERT 1983

6" open hole 284 39/

"/

ERT-02 intermediate/deep bedrock, artesian

1100' SW of the Garage soils' Off Mercury Drive

EPA/ERT 1983

6" open hole 28213

ERT-03 intermediate bedrock 1900' SW of the Garage soils, Off Constitutional Dnve

EPA/ERT 1983

6" open hole 25739

Depth to Bottom

(ft)

2050

460

2050

245

1350

267

2050

X >x/

3000

600

600

Approx Wetted

Vol (gal)

188

36

279

1 9

191

23

290

artesian

83

87


VOCs fc/g/L) [date]

ND [12/18/84]

ND [12/27/84]

ND [12/26/84]

ND [12/10/87]

ND [12/17/84]

171 [02/13/92]

ND [12/13/93]

449 [7/7/85]

187 [01/03/85]

5 [12/18/84]

Sampling Equipment

P.B

B

P.B

B

P,B

B

P.B

P.B

P.B

P,B



Well No

ERT-04

ERT-06

ERT-08

MP-I-1S

MP-I-2S

MP-I-2D

MP-I-3S

MP-L-1S

MP-L-2S

MP-L-2D

Type of Well

Intermediate bedrock

intermediate bedrock

intermediate/deep bedrock

overburden

overburden

shallow bedrock

shallow bedrock

overburden

overburden

shallow bedrock

Relationship to Site Contamination. and Location"1

Installed By

Construction Measunng Point El <2)


(ft)

2725' SW of the Garage soils, Off Capitol Hill Dr/bedrobkwell closest to BMgs/K.LjjiAiqd l\

EPA/ERT 1983

6" open hole 26677

2475' SW of/Garage soils, ) 1 Off Caprtoj -lill |)nve / / /

"\ "^ ^ / / Upgrad , 975' WSWof garage soils, Off McAllister Drive / {

EPA/ERT \1983 \

"• EPA/ERT

6* open hole

6" open hole

25493

30698

125' WSW (upgradienl)of leachfield I/J

< / ^ ,

/

Malcolm Rimie

/1 987

2" PVC

, /

26474

Within leachfield I/J

Within leachfield I/J

Malcolm Pimie N 1987

Malcolm Pimie 1987

2'ypvcj j

x // /

/ ^

/

/

/

261 60

N x N

26)-69 ,

J < X

275' NE (downgradient) of leachfield I/J

Malcolm Pimie 1987

2" PVC 240 94 / /

/ /

ISO' SW (upgradient) of leachfield K/L

Malcolm Pimie 1987

2" PVC / /

Within leachfield K/L Malcolm Pimie

2" PVC 271 67

1987

Within leachfield K/L Malcolm Pimie 1987

2" PVC 271 55

Depth to Bottom

(ft)

Approx Wetted

Vol (gal)


VOCs (pg/L) [date]

Sampling Equipment

600 67 HO [12/17/84]

P,B

600 82 12,340 [12/19/84]

P,B

3000 432 ND [04/02/85]

P,B

200 0 5 ND [12/03/87]

B

200 06 140 [12/03/87]

B

400 3 8 181 [12/03/87]

B

\ 28 Ox

/ x\y 34 50

[12/03/87] B

200 DRY 5 [12/03/87]

B

90 0 5 38 [12/03/87]

B

290 3 8 60 [12/03/87]

B


Well No

MP-L-3S

LGSW

LGEW

LGAW

NAI A1

NAI-A2

NAI-A3

NAI-B

NAI-C1

NAI-C2

NAI-C3

NAI-D1

Type of Well

shallow bedrock

intermediate/deep bedrock

intermediate/deep bedrock, artesian

Intermediate/deep bedrock, artesian

overburden

bedrock, gradient couplet


overburden

overburden



overburden


Relationship to Site Contamination, and Location1'1

Installed By

Construction Measuring Point Elm


(ft)

Depth to Bottom

(«)

200' NE (downgradientl of leachfield K/L / \/x\

Malcolm Pimie 1987

2" PVC 26257 245

1600' SW ofihe^arage Sjjilsjoff Mercury 0{, ad( to well pw-tyb /

X. x ' / /1650' SW of thVQarage. soils, Off/ Mercury Dr / <

unknown

\

'sunkhqwn

unknown

unknown

26905

266 13

3000

3000

/ /\2425' SSW of the GArage sorts, Off N

Constitutional Dr •/ , unknown unknown

s' ~~

- 3000

440' southwest of the Garage soils

430' west of the Garage soils




/NAI / 1982^ \ / N

NAI 1983

NAI 1983

NAI 1982

NAI 1982

^ 1 1 2-PVO

' I I

^ I6" open hole

/ / /

1 5" PVC/ /

< /

2" PVC

2" PVC

30229

\ X 303 83

'Xx

\/303 83 ,

X

304 47 /'

/ / 29^30 /

170

1000

1900

7*eK \/ 170

120' northwest of the Garage soils NAI 1983

6" open hole 30033 1000

120' northwest of the Garage soils NAI 1983

1 5" PVC 30033 1900

1 ,1 15' southwest of the Garage soils NAI 1982

2" PVC 27237 70

Approx Wetted

Vol (gal)

32

artesian

-

artesian

1 4

134

17

21

3

134

164

1 0


VOCs (fig/L) [date]

62 [12/03/87J

36 [4/22/94]

28 [12/26/84]

47 [4/22/94]

88 [02/13/92]

64 [7/7/83]

72 [7/7/83]

6677 [11/19/82]

520 [12/13/92]

2537 [7/7/83]

362 [7/7/83]

ND [11/19/82]

Sampling Equipment

B

NA161

MA

NA

B

P,B

B

B

B

P,B

B

B

Project 92113 MOM SAP, Volume I of II FSP GEI Consultants. Inc Page 6 of 8 Revision 0, June 6, 1994

TABLE 1 - SUMMARY OF MONITORING WELL CONSTRUCTION AND SAMPLING INFORMATION

Well No.

NAI-D2

NAI-D3

NAI-E

NAI-F

NAI-H

NAI-I

NAI-J

NAI-K1

NAI-K2

NAI-L

NAI-M1

NAI-M2

Type of Well



overburden

overburden

overburden

overburden

overburden

overburden

bedrock

overburden

overburden; gradient couplet


Management of Migration Tinkham Garage Site Londonderry, New Hampshire

Construction

6" open hole

1 5" PVC

2" PVC

2" PVC

2" PVC ,

^1 /

2/pyc

/ 1 25" stainless > steel ,

/ ' 1 5" PVC /

1 5" PVC

1 25" stainless steel

1 5" PVC

1 5" PVC

Measuring Depth to Point El |2' Bottom

Steel (S) or (ft) PVC (P),

(ft)

274 15 1000

274 15 1900

28902 175

28352 250

28265 21 0

29392 170 v^

^ \ •- 301,72 35

/

? / ' 295 70 x 95

N

/ /\

295 56/ ' 227^ >

/ /

290 \y 28

29004 130

29004 2400

Approx Wetted

Vol (gal)

140

171

1 5

40

2 3

20

0 1

06

1 6

02

1 0

20


VOCs (figli.) [date]

NO [7/7/83]

ND [7/7/83]

NO [11/19/82]

85 [12/13/92]

ND [11/19/82]

ND [12/13/92]

30 [7/7/83]

4400 [12/13/92]

1013 [12/13/92]

1411 [12/13/92]

1581 [7/7/83]

595 [12/13/92]

Sampling Equipment

P.B

B

B

B

B

B

B

B

B

B

B

B

Relationship to Site Contamination, and Location'11

1 ,260' southwest of tea Garage soils

1,260' southwest oUfie GaragV soils

775' soutri-soutnwgstjjf (he Garage / soils \^ / /

/ < SOS' south-southeast of the Garage, soils / / \

xy 920' south of the Garage soils /

240' south-southwest of the Garage soils

270' north of the Garage soils

60' northwest of the Garage soils

45' northwest of the Garage soils

210' east of the Garage soils

130' southeast of the Garage soils

1 30' southeast of the Garage soils

Installed By

MAI 1983

MAI 1983

N982^

^)19J2/

NAI /1982

N*T 1982'

NAI 1983

NAI 1983

NAI 1983

NAI 1983

NAI 1983

NAI 1983




overburden NAI-N

NAI-O overburden

NAI-P overburden

NAI-U overburden

RD-D bedrock (Ross Dnve-Deep)

RD-S overburden (Ross Dnve-Shallow)

Footnotes

Relationship to Site Contamination, and Location01

300' east of (he Garage soils / N.

470' southeaster the Garabe soils

< < / / /875' southeast of4hJLGarage' soils / X X /

785' northwest of the Garage soils i/.

< / ^

2,600' south of the Garage soils, off / end of Ross Dnve \

2,650' south of the Garage soils, off end of Ross Dnve

Installed By

NAI 1983

NAI 1983

X.

/M983N

WAI j 1982 '

/Unknown / /

/ "\/^

Unknown

Construction Measuring Point El |21


(ft)

1 25" stainless 28879 steel

1 25* stainless 28640 steel

1 25* stainless 281 04 seel

2" PVC 32758

6" open/hole

/ / 7 _

x// / Xj

2" PVC X

/ / \ \

O / *

Depth to Bottom

(ft)

32

74

30

170

200

30

Approx Wetted

Vol (gal)

02

03

02

1 9

295

36


VOCs (M/L) [date]

ND [7/7/83]

ND [7/7/83]

ND [7/7/83]

ND [12/13/92]

8 [3/28/88]

8 [3/28/88]

Sampling Equipment

B

B

B

B

P.B

B

(1) Well location refer to Figure 2 of the FSP, MOM SAP, Volume I of II

(2) Elevation of the well reference point for well measurements, in feet above the National Geodetic Vertical Datum (NGVD) of 1929

(3) B = bailer to develop and sample

(4) P,B « submersible pump to develop and bailer to sample

(5) - = not known

(6) MA = not applicable

Project 92113 MOM SAP, Volume I of II FSP GEI Consultants Inc Page 8 of 8 Revision 0, June 6 1994

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TARGET SHEET

THE MATERIAL DESCRIBED BELOW WAS NOT SCANNED BECAUSE:

(X) OVERSIZED

() NON-PAPER MEDIA

() OTHER:

DESCRIPTION: DOC#. 11954, PROPOSAL FOR MANAGEMENT OF MIGRATION WATER QUALITY SAMPLING, PLAN, FIGURE 2, SITE FEATURES AND WELL LOCATIONS.

THE OMITTED MATERIAL IS AVAILABLE FOR REVIEW BY APPOINTMENT

AT THE EPA NEW ENGLAND SUPERFUND RECORDS CENTER, BOSTON, MA

AS WELL AS THE LEACH LIBRARY , 276 MAMMOUTH ROAD

LONDONDERRY, NH

Documents

GEI Consultants, Inc. · document, Samplin angd Analysis Plan (SAP fo) r On-Site Ground Water Discharge Evaluation. for the site, dated Jun 16e, 199 2 (GEI Project Numbe 89136)r