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I I I I I I I I I I I I I I I I I I .I '. '--'- 11111111111111111111111 SDMS DoclD 23795 HOCOMONCO POND SITE WESTBOROUGH, MASSACHUSETTS REMEDIAL INVESTIGATION REPORT EXHIBITS S1.1perlund SITE: fJvcomooco . Yoo . BREAK: 3.b OTHER: '), 31 q S' Environmental Consultants, Inc. . . . William W. Beck, Jr., P.G. Project Manager TRC Project No. 2513-NSl-20 · September 1985 ·. · 800 Connecticut Boulevard . . .... .. ,;..

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Page 1: Environmental Consultants, Inc.I I I I I I I I I I I I I I I I I I .I '. '--'-11111111111111111111111 SDMS DoclD 23795 HOCOMONCO POND SITE WESTBOROUGH, MASSACHUSETTS REMEDIAL INVESTIGATION

I I I I I I I I I I I I I I I I I I .I

'. '--'-

11111111111111111111111

SDMS DoclD 23795

HOCOMONCO POND SITE WESTBOROUGH, MASSACHUSETTS

REMEDIAL INVESTIGATION REPORT

EXHIBITS

S1.1perlund Records~ SITE: fJvcomooco . Yoo . BREAK: 3.b OTHER: '), 31 q S'

Environmental Consultants, Inc.

. . . ~

William W. Beck, Jr., P.G. Project Manager

TRC Project No. 2513-NSl-20 ·

September 1985 ·. ·

800 Connecticut Boulevard . . .::~ ....

.. ,;..

Page 2: Environmental Consultants, Inc.I I I I I I I I I I I I I I I I I I .I '. '--'-11111111111111111111111 SDMS DoclD 23795 HOCOMONCO POND SITE WESTBOROUGH, MASSACHUSETTS REMEDIAL INVESTIGATION

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HOCOMONCO

WATER ELEV. 276.6'±

\ \ \ \ \

!--+--RIGHT OF WAY (TYPICAL) \

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E.nt Hartford. Connect! cut 061 OB 12031 289-ll631

HOCOMONCO POND SITE WESTBOROUGH · . MASS.

EXHIBIT I

Fl EL D TESTING LOCATIONS

I ----· ·-.

LEGEND

-300--

=====ts7,=:=;;;=

0

0

-----==--==

e MW·ID

• MW·IS

ELEVATION IN FEET

STORM DRAIN

CATCH BASIN·

MANHOLE

HYDRANT

STREET' RIGHT OF WAY

GRAVEL ROAD

· DEEP MONITORING WELL

SHALLOW MONITORING WELL

EXPLORATORY BORING

TEST PIT

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• SS-10

LJ SURFACE SOIL SAMPLE

HYDROGEOLOGIC SECTION LINES

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SCALE IN FEET

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Page 3: Environmental Consultants, Inc.I I I I I I I I I I I I I I I I I I .I '. '--'-11111111111111111111111 SDMS DoclD 23795 HOCOMONCO POND SITE WESTBOROUGH, MASSACHUSETTS REMEDIAL INVESTIGATION

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MOr-----------~--~--------------------------------------------------------------~------~------------f,~--------------------------------------------------------------------------------------------~340 .I

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330~----------------~~l-1 ------~------------------------'----------------------~----------------------------------------------------------------------------------------------------~'~·--------------~----------~------------------------------------------~------------~330 II

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320 l----~----~~c~--~~~~--------------------------------------------------------------------------------------------~'; ____________________________________________________________________________________________________ ~320 i i ': '

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310 ~--~,-------~t-----~------------~~------------~----------~--_;tl~~~~ ~------~~~Uil~----------------------~----------------------------~~--------------------------------------------------------------------------------------------------------------------------~310 ~f-FILL ~t-!k_ I ~- I

SAND · I '-.____ ------ 1' r-- EXISTING GROUND I-I-SILT, I '-FILl '-. ___./ \\ I

~----='-=--G~R~~~~~E~L_l~t==·~S~I.LT~,~~~====~~~~==~====~==~==~~~~~~~,J,======rir~====~==~==~------------~--------------~~~--~~----~l~--~~~=-~~~------~--~------------------~--------------~~--------------~----------------------------------l SAND ~L ': 300 300 i~ TOPSOIL ' r- "--._ ; J_____ ~-----........_

' ' ~= -........_,,;---,.' - /~ ........._"--------........_ . SAND ---t- = _ ___.-/ "- ~

o~ I --------;'L-------~--~----~-+-P~--------------~' __ _;~~~----+-~--~~~~=--------~·--------------------,t----------~-~--~~~--~------------------------------~ ~~~~-t-r~----------t-------------~~-----r~--~2.1S .. U.

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~~ r '···. ' , - · SAND GRAVEL I ~"' :;J

; ; ~ ~ "-r--"' . ~ ~ , I ~ " " ~ ~ , , v-;--...~ "'-ToPSOIL~-=:;:=~::y:--( U

I -------~------1' -----------+~.§~~r-..-h\P=~~crr:f·~28111---------z2sc81rf--l-.-+-+ ( \ ·281 i ~Lb n ~ ~::~ 282-~ ,.~"'1--1--" I§ I 280 280 1- 'I \I~= I) 279 LOV' \ ) r- ' I~V -?79 280- @I

Cu. I"' '-':>- -?7q ' ~ , I ~ 1' ~ ~ -278 I~ .' I~ ,I/!~ ;I ~ E'= , SAND GRAVEL---1- ~ 1-1--- SAND SAND v .. -.~~ ~ ~ , ' f= GRAVEL r -

270 ~-----------~·~'--------~~-----~------------------+-+--~~--------------------------------~--~----:~· --------------------------------------~t-t-------------l-1-------~----------t-t-----i2/,~v ,I 'I CLAY I "f---SAND I SAND GRAVEL--+ ' SILT, SAND

I ------------~1·--~-----~~----~---------~·~---4-f---~·--------~·------------~~~ --------------------------------~~--------1f-~==~~---~~~·~~~===1~--l2so =~ ' I f- -~ o-f---SILT, SAND '- GRAVEL

SILT, SAND t;:: i GRAVEL -----t;1 ~I 250~---------------------,1----------------~~--~---------------------------i-i------+-+-----------------------------------------------------~ ,!-,, --------------------------------------------------------~-------------F.~----------------------------------------~---==~---~~~r-- j-------250

------ --- ---------- (' r----- 240 r::

------240 r-------·--., ----~-'---___:___:_____:_~, -----"--------tt--------------~----------------1--1-----,-t.:i==~sSiliLL:TT~, SSAANNOO _______________________________________ ~i-----,-----------------------------------------=-~-~-=---::-=---::=:-:=~~"'-----:--- _•·. • ·--:-- :;:

-· TILL---- -• :;::· --------- :.;

;:;

------------------- .. -----1230

TILL-----~

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-.·· -:.•. :=;

< ·-::. :-·:: :::::

:-: .. ·-:

220 1-------------!._1-. -----+-t---,----------.-/-./7 .•••.•• ·•··•

210 l------,---,---,---·---:-,:,r-------j--+----:-------;T7"1~'--L/_/_/_--'---_· ~ _...... \:===-T-IL-L--------------------' -----------------------------~· _;r,;I-------------_.-----::___..,::___.-_B_E_DR-O-t_K=/'==.--=--tl'/i--MI~---j210 !' ' ' /" / ...... •·•••• " . .• ___.--,, .,... ,,:·:.·: ::::,: -:= / ::::.:: - --------- ! :[f ~~,-

/ BEDROCK =-~/-----M'Sl <'!--BEDROCK - - - -- - - -;- - - -- - __ (':: /' ~ro:O~--------------~: -_--------~rt----/-/~/--_,_,--_,_,.--_,_,.~./~_,_,-'---·------~----~~---------------------------------------+'----~----------~--~--==--=-~~~~~~==~----B-E-D~~K~~~~~-~~-i~-~·~·-··~~/~-------------------------------~200

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i. =~=~r~ ~/~----------------------------------------------------------------------------------~-----------------------------------------------------------------------------------------------------------------------j 190t--------------------:-, -------------·- :) , r -:'T' • 190 '

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18oL ___________________________________ -t~====~~oa~---------------------------------------------------------------------------------------------:------------------------------------------------------------------------'-----------------------------------~~8o I BEDROCK tx

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17011-----~---r--------~--------~------------------------------------------------------------------------------------------------------------------~----------~----~170 '" ' -/ HYDROGEOLOGIC SECTION A-A

160~--------------~--------------------------------------------------~----------------------------------------------------------------------------------------------------------------------------jl60 ' '

1001------------~' -------------------~'---:----------------------------,--~---------------------------------~--,--------------------~150 i.

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-0~--~; _________ ~l __________________________ ~--------------------------------------------------~! ----------------~--------------------------------------------------~--------------~130 13 ~ r

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800 Connectkut Boulevard ' East Hartford, Connecticut 06108 1203) 289-8631

POND SITE MASS.

HOCOMONCO WESTBOROUGH ,

EXHIBIT '2

A-A HYDROGEOLOGIC

[I TILL

~ BEDROCK

LEGEND

I I WELL SCREEN

-:~GROUND WATER ELEVATION DATA 2;;m

SECTIONS

SCALE • 1":50' HORIZ. I": 10 I VERT.

DATE' MARCH 1985 PROJECT NO. 2513- N 81

,1

V . .

I

Page 4: Environmental Consultants, Inc.I I I I I I I I I I I I I I I I I I .I '. '--'-11111111111111111111111 SDMS DoclD 23795 HOCOMONCO POND SITE WESTBOROUGH, MASSACHUSETTS REMEDIAL INVESTIGATION

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i ' ---- 1--+--SILT,SAND,GRAVEL ~1-SAND, GRAVEL---+

·: TOP~nll

\ ---c '-- ~o--j-----:cS"IIILTl ,SAND

'------ BOULDER .

SILT, SAND,GRAVEL --4--- SILT, SAND SILT, SAND ---1-

SILT ~.~ - -- ----- ----I~ LT,SAND,GRAVEL

:__... ~-ui-BEDROCK

285 f-u- . ~~--- . :. -- - -

: ::"" f-Orllr~--~--S~I~~'~S-AN_D_-_-_-_-_-_-_-~'--~----------------~-------~------~~-~---~-~-------------~--~-------------------------~280 ' -----~ I _-

F= ' : --~ : ~ I' F '/ · 07n ~o~----~'---------~----------+~~--------------------------------------------------------~---~~/~~/~1.'_------------------------------------------------~----------------------------------------~uo

SILT:, SAND----t- _.-1 /

I. ~ I

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0~----------~:-------++-------------------------------~~/~/-------------~-----;-----------------------------------------------------------------------= 25 . // i

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240~---------------------------~~---------------------------------~/~-----------------------------------------,----------------------------------------------------------------------------~-----------------------j:Mo / '

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I ---~--------~c~L~A~Y,~S~Icr~,~s~AN~D~===t~--~~~~~-------------~~/~-----------------------------------------------------------------------------------------------------------------------------------------------------------l230 230 ~ ·, 1------- /

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:L-~__..:::../~ _______________ .:__' -------------------------122c ~2~2vo~----------TTiLILLL ===== ) ./

: / =··.:· /

210~----~--------~;----------~:~:~/~-------------_--------------------------~------------------------------------.~.·---------------------------------------------------------------------------------------------------·--1210 BEDROCK --·------m ,I

·. ' HYDROGEOLOGIC SECTION B-B _______________ j:, ________ . ____ ~·~-------------·-•_ ·----------~----------~~----~-------------~~-r-1~~~------~~~· ------~~-~---~--~-~~----------------------~~w 320r- .... '

'\ r

L----~~~~--~----~~~~--~~~~~~----~--~-------~~~--~----~--------------~310 ;: Jl ~ r-- EXISTING GROUND _ '..__ .. 310 1 ~ ::;I::; . ----- SILT, SAND, v · ..

' ~ "' ~~- f-,..., '" __ JL-------~-. CLAY ,SAND: GRAVEL--l-- '

/-'-.;'l.-----------300~-------~·:_~~:~f=6L=1~fi=~----------------------_---------6DillJITER~=======*f-~l~-+-------------------~~-----l~~K~E~TT~L=E~P~O~ND~-------------------------~300

SILT, SAND 1=: -----J-.t-. '' .

FURNACE SLAG---~~~::oj CLAY,SILT,SAND t-

290 r-----------EBEJEDJFRWOC~K~======= '-..,'-...,_

""-- 280 I M I M I

'-...,_ " ~:~ H ~ ) ~~---------~---~------~~---~---------------------------~~~ ~""-­

""-­SILT, SAND ------f-.

~, ___ \.._ --- ----. -'-,--, -'-,--

o-f--- SAND PEBBLES l~ao

.

SILT, SAND ,GRAVEL.---+ ORG. MATERIAL , SAND

-

I ---------------~-----------------------------------"'--~~,~--------------------------------------~----------~~----------------------------------------~~-------------1:t-1~~~~-=~=---------------------------l27o 270f- ", ' '-" ~-- SAND , GRAVEL

-I--SAND

'-...,_ '-...,_

L--------------~--------~------------------------------~~"----------~------_j~~~~~=-----~~----------------------------------------------------------------------------------------~260 260 '-...,_ ""-- - - - - t= ',

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240(--____________ _1; ___________________________________________________ ~_~ _ _:,., ",--------- l __ ·-----------------------------------------------------------------------------~240 I "-.._

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POND SITE MASS.

HOCOMONCO WESTBOROUGH I

EXHIBIT 3 •

8-B 8 .C-C HYDROGEOLOGIC SECTIONS

t:lj TILL

§lll1 BEDROCK

LEGEND

I I WELL SCREEN

·~~m . ·, ~:m. GROUND WATER ELEV~TION DATA

'·· . -- . .

'

SCALE• 1"=50' HORIZ. I"= 10' VERT.

I ,.,

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:1. I > 1 :

Page 5: Environmental Consultants, Inc.I I I I I I I I I I I I I I I I I I .I '. '--'-11111111111111111111111 SDMS DoclD 23795 HOCOMONCO POND SITE WESTBOROUGH, MASSACHUSETTS REMEDIAL INVESTIGATION

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310

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HOCOMONCO

WATER ELEV. 276.6'±

POND

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T~ Environmental I ~~ Consultants, Inc.

800 Connecticut Boulewrd East Hartford, Connecticut 06108 1203) 289-8631

POND SITE 'MASS.

HOCOMONCO WESTBOROUGH

EXHIBIT 4.

GROUNDWATER ELEVATIONS

DATE•

LEGEND

EXISTING:

-300-- ELEVATION IN FEET

=====157,==== STORM DRAIN

0 CATCH BASIN

0 MANHOLE

-<>- HYDRANT

STREET RIGHT OF WAY

==--== GRAVEL ROAD

~ GROUNDWATER ELEVATION IN. FEET

_ ..... ~ INFERRED GROUNDWATER , ELEVATION IN FEET (M.S'.t:.)

SCALE IN FEET

150 25 0 50

PROJECT NO 2513- N 81

I

I

.I

Page 6: Environmental Consultants, Inc.I I I I I I I I I I I I I I I I I I .I '. '--'-11111111111111111111111 SDMS DoclD 23795 HOCOMONCO POND SITE WESTBOROUGH, MASSACHUSETTS REMEDIAL INVESTIGATION

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SECTION L-2 270L_-~---~~-~-----~============~~-----------------------~o

320 I'',

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310

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300

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310 ....

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310 __ _:__ ________________ _2''----------~---.--------~----~~------~----~------------------~~------,3!0 <!)

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\ SECTION L-4 VOL_ __________ ~----------------~======~==~~-------------------------j270

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HOCOMONCO POND. SITE MASS. WESTBOROUGH,

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EXHIBIT 5 ·' • ' ' I" ·r· · "'

. FORMER LAGOON SECTIONS··

II

• .[ill

llllll D •

[2J

LEGEND

HEAVY

MODERATE

. SLIGHT

ODOR •

NONE

SAMPLE LOCATION

----""----'-GROUND WATER (APRIL/JUNE 1984)

NOTE• INDICATES DEGREE . OF VISIBLE CONTAMINATION

'

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' SCALE • ,I"= 50' HORIZ.

· I"= 10' VERT.

DATE • . MARCH 1985 PROJECT NO. 2513- NBI

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Page 7: Environmental Consultants, Inc.I I I I I I I I I I I I I I I I I I .I '. '--'-11111111111111111111111 SDMS DoclD 23795 HOCOMONCO POND SITE WESTBOROUGH, MASSACHUSETTS REMEDIAL INVESTIGATION

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SECTION K-2 260 L_----~------------------------~--------==============~~--~~----~----~----~----------------------~-1.~00

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290

280

270

260

295

285

275

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290

280

270

260

295

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fWi:J MODERATE

(2.] SLIGHT

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---l:i~- GROUND WATER (APRIL I JUNE 1984)

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