Mly12, 1~

,.._ ... Actoi\, MA 01720

150111135-!1!00 FA:I. ($01) 13$-9110

ENSR Project No: 0805.015-100 ENSR Re111ence No: !532-BG-231

Mo. Jonlo K. Toang On-Scene Coordlna10t U.S. Environmental Protection Agency, Region I 60 Weolvlew Street Lexington, MA 02173

RE: Addandum to tho Phuo I Site -.men1 Oala Summary: Rogero Avenue/Taunton Ga Site, T1unton, Mauachuaena

Door Mo Toang:

On boholf ol Bay Slato Gat Company, ENSR Conoultlng ond ~ (ENSR) Ia 1U0m1tt1ng t1111 - to tho Phao I Site Aoeeumon1 Oo1a Summary lor tho Removol Adionlltho~Avonue{TIIIJnionGMSitolnTounion, M.....,.._, Thlo-.un, which oonolotl ol-Io tax! ond -lncludod In tho dlla oummory,lo­on modlllc.rJono 111atww.-ond ~upon ota ~ hold at ENSR on Ajlr1l 18, 1885. Tho par1lc:lpantlln tho ~ lncludod youroolt, Eric - ond David ~ ollhe Toc:MicaiAoalotanco Teem, Wonda - ol Bay Slo1o Gat Company, ond ww.n Galaghor ond 1<1m Henly ol ENSR. ~ - lnoorporallng tho rnodlllclllonltolhelutond-welncludoduanaa.ctwnonttothlo-­onddiocuoHdbolow:

Summary Table Key AI tho end ol tho fttat paragraph, 1he aantonco -n.. cornpoundo -e moat lkaly lntroduood during ... analy1lcal procou and are not actual olto ~· hu boon rtplaood with 'The source ol 1heoo oompoundo Ia unknown, ond 1hoy oro not believod to be Slta ~·-

At tho end of Soctlon 1.8 the f<>lowtng aantoncoo havo boon added: 'Additional lOll oampleo-. tllkan tram a tronc11

ijt

1J.;f d~~ fi! a

II ,\c (ii •f

u ,. 1~ II ~

:1

8 8 N

I

Mo. Jonlo Toong May 12. 1118!5 Plgt2

2-3

2·18

2·20

txcavlled by t11t Tounton 0epot1mont of 1'\Jbllc Worica (OPN) during repoif oil ,_ fine IOIAI1 of t11t ailo. Tho OPW ropot1ad 1 'crllol' 41ko odo< and an aroo of atalnod 1011 In tl1t 1Joncl1. ENSR oolfodod I 1011 aamplo -om tl1t ttalnod 1011 and ~om tl1t un1talnod soil In tl1t troncll and aubmlttod tl1t soil umplot for PAH acroon, VOC, food, and total cyanldo analysis.

0<1 Toblo 18 , t11t ' Not analyzed (NA)' umplo ruults for Gommo· Chfordano for 11-11, 11-13, and 8·22 have boon chongod to ' Not Dotoctod M'· Tho 'Not Molyzod (NA)' roauk for Gommo· Chfordano In B-23 It corroct, and wu not chongod In tl1t loblo.

0<1 Toblo 88, tl1t 'Not Molyzod (NA)' aamplo ,_for vorioua oompounda lor SS.2, S$-3, and 11-11 have boon chongod 1o 'Not Doloctod M' or 'Rojoc:lod (R)',-. ~-

0<1 Toblo 88, t11t 'Not Molyzod (NA)' aomplo ,_for (Wnmo. _.., 11-21 and 11-24-boon chongod to 'Not Doloc:lod M'.

1 -lhll-,_,. aro .,.,._ w1111 our prOYfoua dlaculllon. H IOU ooncur,

~ olgn .. - - lo ~ your .....,.,.. of tl1t propoaod --· ~.~col molllf'lolthtpropoaod __ or __ - r.quH

Ulhor-. Aloe> • you --· " wfl bo oonclng you ono 101 of ~ ooplao ol tl1t follorllory INiyllcol ropor11 tom t11t "'*"I Silo - ..-~010 oowr.

' lfl t-r H~ ~ 'i!!i H

•i

u ~~ r• ~~ 11 ~

::a 8 8 N

MI. J1n11 Tung Moy 12,111118 Poge3

{ KEY FOR SITE ASSESSMENT FIB.D LOGS AND FIGURES

TAUNTON GAS WORICS/AOGERS AVENUE SITE TAUNTON, IIA

The field logs Included in this dota IUtMlll'/ u Appendix A contain dolcriptlona o1 mony dlfloront lOIII and MGP wuto types. The logs woro proporod buod on viluoloblofvotionl and wsro genorotod by -oldlfleront field portOnnOI diJrtng lila -ICtMtlot. Al l NOU!t, various terms ore Ulld to dolcrtboiOil and -te types. in o<dor to ltondotdlzo tho dolcriptlona used In thou logs, this koy hoi boon dovolopod. This koy c:crrolotet gonorliiOII typo - tho descriptions provided In tho fteld logs. Fo< tho purposn o1 this dota summary, tho standordlzod soli doscrtptfon wlft bo used.

Tho affected 11eu maps for both tho Rogors Avonuo portion of tho silo (Figuro 5) and tho Former Taunton Gas Works (Figure 22) were created based on vltual obletvation of wute types ond tho detection of cortaln compounds u shown In Section 2 of this dota summary. AIIUCh, ldonti1tcotlon of affected araas shown on thou mops don not Imply that the propcsod cleonup lovell hove boon oxcoodod throughout tho offoctod arou.

Sol! DMertQUon Abbreyldonl'

QtnMJI pwdgtlon

AoMiko moton.t (AUI)

Cllnkor41ko motorial (CLM)

Tor41ko motorial (TlM)

011-Gko -- (OUol)

Wood Flborl (Wf)

Brick

Fill

AIII, Cindott

CUnkors

Cool ... -.,-... -ol, ....... " llko-011, product ootur-, olty product, oil ou-noo, olty ............ ...-

• · lndudel one or more of tM following : Block otolnlng ; ---;olltylluclgo;-; oool Wad«;---.: ALM; TUI; Cl.M; or OUI

Wood ftboro, wood clllpo

Rod cloy building brtclcl,- kin brtcka

Any norHIII!vt moton.t - moy lnctucle cllln iOill, bUIIdlnll-. or CORM

KEY FOR SITE ASSESSMENT SUIIIIAAY TABLES

TAUNTON GAS WORKS/ROGERS AVENUE SITE TAUNTON, IIA

Tho aumm"'Y tablol lncludod In IIlia data IUI'M\IIy In Soc1loo 2 0011taln the lollowlng data: lal>orato<y roaulta ~om 1011, lldlmont, aurlaco-watar, and groundwater analyHa; laborato<y raoults ~om n.ld and trip blank ana/yHI; air monito<lng raoults; and groundwater elevation meuurements. The summary tatHu lor the laboratoty reaultl for soil, sediment, autfaca-watet, and groundwatar ana/yHI are dMdod Into two part&. Part 'A' of NCh of theH tablol outllnoa the analyHa porformod lor NCh matrix at NCh location. Part '8' of each of lllalo tablol 0011talna tho actuol lal>o<atory anaiy1lcal roaults lor aach matrix at aach location. Only tho compounds that were detected are shown on these summary tables. Several compounds dotacted during VOC analy101 (chloromolllono, acetone, carbon diiUIIIda, t , 1, l ·lrichloroelllano, and IOirachloroolhono) are not typical CGRM COI11tituontl. The aource of IIlaH compoundl Ia unknown, and tllay ara not believed to be Slta 0011tamlnanta.

The son aamp&e depths pretented on the aummary tatMM rep~~~ent the 2-loot Geoprobe core Interval from which they wert taken. When the soil samples were tak~ from a 4·1oot core, the axact umplo doplllla provided In the notea olthe tabla. The 1011 and lldlmont sample analylia roaults tho! are aboYo the propond cloanup lovola lor the alta are ahadod on the aummary tablol. The c1oMup- propond lor the alta are 11 lolowl: 100 part per million (ppm) total PAH, tOO ppm phyllologlcolly ovollablo cyanide; and 300 ppm lor load. Seve<al abbrevtationa are used In the IUI'tVNIIY tabtel; theM abbfevlltionl .,, defined below.

AniMk;al Pt,..M AhhrtwtiiiQM'

CH

PACN

PAH

voc TPH

Cyonldo

Php~o~ot~co~y ,.,_ Cyonldo ~or ... ..,...... lllken ""IIIIo ......---lllllynd. Tile 101 and-_,.....,. currently being -litho loborllory until tho - analyllcll ...-. Ia ftnallzod.)

Potynuclolr Aromlllc Hydrocarbon•

Volatile Organic Compounda

Tollll Petroleum Hydrocarllona

• ~

' ~i~ t -r H~ ~ IF!' ~r sf

u ~~ i; ~~ ~ i ~

::a 0 C)

8 N

~]

')

J I

Flold ICIHnlng IO< PAH wu potlonned on IS ot 111o 16 10if &amplos submi11ed tor PAH onolylil

using EPA Ma111od 8270. lnsufftclenl &amplo volume wu obtained allocation B-e (S06AI) 10

porlotm 1l1o field analyols. PAH 1leld woening wu perlonned on sHe by ENSR using 111o

Oulntix Immunoassay syslam. Many of111o &amplos were heavily contaminated and had 10 be

diluted sevarll times using 1l1o dilution kill P<ovlded by Cluantlx. The accuracy of this Pfocodure

may have been reduced due to the high concontra11on of PAH In some samplos and the dilution

facto<.

1. 7 SHo Survey

Prior to implementation of the site usessment program, topographic surveys were conducted

at both tho Rogers Avenue Property ond 1l1o Former Taunton Gu WO<ks. In addition, suspected

tocationa of underground structures or other former structures of Interest were surveyed at the

Former Taunton Gal Wori<a.

Following completion of 1l1o Phua I SHe Auassment ICIMtles, 1l1o location and elevetlon of

mon"ortng - and 111o location of lit othar sampling polntl -• surveyed.

1.1 Addltlonll Sampling

In raaponoe 10 EPA's ..,_, that 1He·rlla1ed compounda might be ontorlng 1l1o stonn·water

droinogo pipe that llowl from-lo-In 1l1o ...-,portion of111o Tounton Goo WO<ka, an

obootbont boom - 1101 up II 1l1o droinogo pipe cllochalgo point II 1l1o Taunton Rive<. In

-.. 111o dr""- pipe - oempled 11 two 1oca11ono. One .np~o - collected ~om a

cutwrtonWaetWIIM-upgradont o1111o w-..--nrnoll~om111o--

obaarvod10 be entarlng 1l1o dlocllalgo pipe. The -----1111\o dlocllalgo

point 1111\o Tounton Rive<. Boll - ol .nploa -. ~ lot analyllo ol PAH uelng

Mt4llod 8270 and IIOC. Additional IOil .nploa -. taken from a tronch ox- by 1l1o

Taunton Oopar1mont ol Public WO<ka (OPW) during repair ola -lno south ol111o ""-· The

Df'W repotlad a ·craaor-lko odo< and an ansa ol- aoilln 111o tronch. ENSR cotlocted a

11011 aample ~om 1l1o ltalnod 11011 and ~om 1l1o unstained aoilln 1l1o tronch and Mrbmltted111o 1011

oamplee lor PAH OCtOon, I/OC, lead, ond 10tal cyonlda analyllo.

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