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UNITID ITATIIINVIIIONIIINTAL OTICTION AGIIIC

u D fiiOIIIMIUIUMMCI 8011011IUIUCIIUIInlbullbullbullnmiddot-middot Decellber 17 1990

Jaa Porrelli NUS Corporation117 lallardlala straat sulta a-100 WUbullintton llaaaachueatta 01117

Ra c_ta on ~aft bull-1-tal_tJif 111vraUoa -1a1 1nvaat1vat1011 rt - orovalancl Valla llta

Dear Mr rorrellis

wa lava ravlevacl t11a ~aft suppleMlltal Nanav-t of lllvratloa -lal lnvaatlvation rt - orovalancl Valla llta alab vu ~tta4 to IPA on bullov-r s 10 wa lave tile follwiDJ

dlamp fllllbull t-u lila llaadlnp for thla tabla IIIII1 -middot rabla 4-1 an t11a -~ _t tllla tabla baadiDJ be u folll lllallow OVerburden Jlonltorlnv walla ln - I shyfila Valley lite atobull 1

a _ rill middot-middotmiddot - ~t -t tll1a tabla -r read u foll Deep ovartourMJVAillw - Jlonltorlng walla ln- I- fila Valley -1

middot Rr Lt~ itWo~~~=o=r~ ~nbull M yttt elt -middot bull-ua ror proper GKonolOIJbull ttil a tabla be -red 4-111 cllan9bull July to bull-1

s

middot MI all rlpg a-11 Since thla fiCJUIe and tbe bull-ant an identically labelled bull11991bullt tllla Uvun bo labeled bullPotentlaetric Surface Map Water amplevatlorw (3110) 0 1

7 pyamiddot rtnn _ _ bullbullbull co-nt lfo abon 8lftMt thia fipre be labelled bullPotentiatrio SUrface Water Blavatlona (lltZ090) bull bulllila The Liat of Appendicaa ahoulcS alao be contained vitllln tile rabla Of eontantao

1-1 ap4 rarurapJt 1ll Lipea Check thil datil alao themiddot reference middotcited 11 not in the Referencebull Section I

~ 10 rye 1-a zta Llae crga MSMbull ChaNJbull bulltrichloroethanebull to bulltrichloroethenebull 1

11 rage 1bull1 let leattpqea Spell out DIQI and DIPJ

12 bullubull _ 114 bullbullbulltbullasbullbull ampUCJCJbullbullt tbia aentence rs bullbull rouova bullDIQI aandated claun of Station wa 1 and 2 1ft June and october of 1171 napectively 4bull to lfCI contabullination bull 1

ll rge 1-1 aao laraqrbullpbull aat Lla11 Thia line ahould atate bullwell for the Town of Groveland bullbullbull etcbull 1

14 1-a Ltae crge Mttbullbull specify well nlllberJ

15 nge lbullt IHJlta 111middotmiddot tt largraplu

a

11

c

5th line - Tbia abould atate bullwoctel etalationa indicats1 1) that it ia alcl 7tll liM - fbia -ld atata P--71 II that tollila it ia bull etcbull lOth line - ftlia llhould atate bullcontaaJnatloe of Station bullo 11 and l) that it ia atcbull1

) 16

17

1M9 bull-bull ly fba baiJinninv of lhia liM -bull atata bullaaland Site) vu -laUd atcbull1

ft creC~~~-c~~~_ 18 IMt ampmiddotbullmiddot Matlg 11 aet hr flaoe bull1bull bullabull and

=tilbullmiddot~~ middot~n~ =bull-~ ~~ daA 9apa wn iclanUfiatcbull1

u bullmiddotbullmiddot bulld LiMbull Then are no rec~tiOM contained in lhibull npozt1

20 ryt 1-a up tlbullbullbull Thie ehould read tbepqterBlqe qf tbe lite bull1

bullamtan a A QtMpl

a 1Mt J-bullmiddot Wbullbull Croe Mttbullbull Thibull aboulct read bulllllttJAD IA Myllrw Pulallg Htaltb Bilk Abullga-ntbullr

22 Mt 1-1 tp Wbullbull c Jptttbullbull Thie ehovld read bullsection ao Supplntal llanaCJnt of MiCJration adial Inv1ati9ation Surybullbullbull1tcbull1

23 a-bullmiddot wubull Thil line ahould atate middotthrcMa9b JUly 11 and included 40 walla 23 walla bullbullbullpled by JIUS bullbullbull atcbullr

--

0

[_

24 M lbullt laet Liaea Thla line ahould atate bullpa tperature apecific conductivity dibullaolved oxyven and flov For bull

25 rage a-t Lipbullbull Thia line ahould atate bullreplace ataft lrfo 4 ancl Mo 11 aurveyora located bullbull bull etcbullr

26 ftllt lbulll Should 1ncl1catt that tbt rtctanvular box ~1 rapreHnta the acreen interval depthbull 1

27 tltlt IbullJt Well No1 bull 71-24 NUI-5 and No 17 are not liated here but are ahovn bullbull havincJ been aaapled according to r1re 2-11

21 rtnu a-u In the lover left detailed area well 110 107 obould bt obovn ao one of tbt vtllo 1nottlltd durinv ouppl-ttl - RJ 1

29 1M9 bull-bullmiddot ad LiMa ft1o liM -ld otttt __ - Inc 1o loaattltl u tbe --_ ot bull bullbull etcbullbull

30 bull- aa IMP Imiddotampmiddot bullmiddot ad DUamiddot ty ftla oont- obould - v1tb bullto treat tbe utreoted trounclvaterbullr

31J ZJffwedlmn1t-=u- vella bullbullbull etabullr

32 pwt bullImiddot zp Cbange bullcenter ltnetbull to _in ltzMtbullr

33 _ a-aa ltdbull 1middotbullmiddotbullmiddot1middot bullM bullM 14Mbull Delete u an11 bullt~~ebull

34

35 bullbullbull bullbullbullbullbullbull bullbull bullbull Cbantbull bullonbull to bullonebull 1 rlnu a-11 Incl1cate tbtt TD 1bull tbt tottl depth of tbt bor11191

37 rtgre a-abull ror well Wo DT-5 chancJt 335 to 430 1 r for STA lfo 2 cha1191 57 o to 55 5 per Table 2-281 alao indicate what bullmbull bullbullnbull

31

39 ragbull 4-1 let rargrapll tit Lb11 Indicate what bullfixedshy- bated laboratory analybulllbullbull ana _

~ 40 ~ Data for Maxiau Surface concentration and llax11NII

luballlflce concentration llhould be directly under tbe dinvbullbull

u ~Define Cbull 43 PMbullbull bullmiddotbull ulaquo tbullt bull ror- of reacl1ft9 the data troa tbe

lut eantenoe at tbe bottbull of h98 4middot6 wllioll aonti- to the top of Page 4bull7 could be converted to an in-text tabler

43 1Mt tbullZ let e-lete hrnup 1p4 ltptepgea At end of aentance ttate bull(ampM liture 2-l)bullr

u ruInent tvi =t aoM oonti- pupinv of ltation lo 1 I 600 9JIII tor 11 lloure u vae done in tbe paetr

u 1M bullmiddotbullmiddot art wyr laquor- MtampMmiddot Wabullbull Waa well 11o a aleo- tor beoJogrcoDbulllr 11M bullmiddotbullmiddot fbull bullmiddotbullmiddotampmiddot ftmiddot tut rtubull IIIMIt attile - ot til bull Hlltenoe bull _ r vure 2bull111

n memiddot llllt M bullo llot Availablebull Mould 1M

J temiddotmiddotmiddot 114 rrbullM 1M IM- lftliall tall _ Wl e - uht1119P--ed rMeral 1 shy

zt =-middott-=t~l middot llllr-J 1e ill _-

so =-middotlnt~CtJ=I Cmiddot Rr-14 1bull AcNn in rtpn

51

52 tbullll bullbulltlu tt Jr4 hrwrag 1bull4 ttga bullstart shyup in lttobull1 la thit date correct

53 _ tbulltta fte Influent and l ftluent data for bullOSOltObull llhould be proparly centered 1

54 ba tbulllt lawt _ hraqrap laet leptepg11 Why have TCI levelbull in well lfo IIU8middot5 decreabulled over tibull What are tile -ible reone

55 IIQ t-11 1111 1 1ttll Lln11 Thibull 1bull an lncoaplete bullentence

---

51 bull-bullbullmiddot la-tm Mlbullbull The data ahould be centered under tba appropriate llaaclincJbullbull

57 lllllLj1J see cont No 1 abov11

51 o bltll fbull7 I IN I Jpound4 -IIbull I If LiM I The text lhould I tate fill VAUIY IIftIIILL - AUA0 1

middot ~ bullbullbull c-nt llo 2 -middotmiddot 60 coluan which averatu the _ There ahoul4 be a

11 nella lrook data1

11 bull-lt ia blockecl by thea fte TCI concentration tor NUS-3

oontour lina1 11 wall 110 71-25 alloulcl allow a Tell concentration of

(11) 0 1 a 11 110 114 alloulcl - a Tell -ation of 11

ut11 d tile liD for 11 110 ns-u ia vitbill t11a 5 U9l

-llnal bullmiddot aQI-11 not a -lac u f ror -iatanay vitll t11a -middot wall -middot 10 anc1 20_be lalle1acl 01 ancl 02 ~iftlJI 9middot u 110 us alloulcl - a Tell -ration of 2 utili

12 u- bull- lllould t11a data for DBQI-7 be inal- in t11allai u_IJ a ali 110bull _ ia -to t11a -t af wan 110 107

- 1a tlla cletaUacl ana t11a 11 ia - to tlla - of Jlo 1011

II - -t 110 21 abova1 IMt~f Wbull laquore M What ia bulla chnical ID on 1-s atabull

Llaubull Por ottimiddot hUVymiddot bullnacl t11a -racr pt alloulcl a-ron t11a lina1

bullbullbull IMI 1=1 1 1 1 tt bullbullbull hrMrp bullbullbull Wbullbullbull What are ~l~rtantial aurce bullrbullbullbullbull dOVncJradient ot the

67 IMbull 1-1 LiM CfM M Thie line ahould atate pllaaa liquid (llUPL) alCJbt axiat in the vicinity of t11a Valley Site bull 1 1-1 Liata Chanqe bullhgtLbull to bullugtLbull 1

11 hqe bull-bull ant sea co-nt No II aboYe1

10 rag 1bull7 apt aoplbullbull hrgrau apt Lip Delate the vord bullvallebull

72 rage bull-a raraqrpll ltt bullbullabullaobullbull W to the and of the aantanca bull (aaa Tabla 1-1) bull1

73 rubull t-1 __ The n and abbraviat1ona llbould be Uated tor all tho chicala bullmiddot9middot 11-Dich1oroetlwle (11-DCA) I

74 hqbull bull-a lyS hrgrytu a he tint Mfttance atarta with bullpeabull theshy

Mfttence atarta vitll bulltetraobloroetllellel tile tll1zd -- nYaiU baok to bullpeabull - ~middot 001111ietont1

b he tint Nntanca A)ll tbat tba -ioala an rei_ tha - Mfttance AJ8 tile - tlliatl

o Third -- - at - of tllb - -a shybullli- -tntiona of 11-DCA I 11-DCII

4 Porth -- - at - of tllia --~ shy41- _trationa of 12-DCA al-l bullmiddot 2nd line troa bottoa- Chantbull bullt2middotDCIbull to bull12-DCampbull1

75 1M bullmiddotbullmiddot bullsbull M Tbe reu1nint Mntenoee Vbiab atart ben -14 be pla- into a -bullbullto par09rapl11

71 _ t=a ltrMrbullmiddot tbulltll lilver le aot llatell bullbull a on lobla 1-11_1 of -m

77 IMt bullmiddotampampmiddot Wbullbull Delate bullvaterbull1

71 11n bull-ampbull tbullSbull rna lttttbullbull Delete bulltraneportbullr

79 1M I=JI SlQ 14JI 111j LlDII Thie 11 ftOt I buatn expoeun acenario r

10 bull-bullbullmiddot Lty frM Httwa Thia line aboulcl be ritbtshyjuatified

11 bullbullubull t-ao I bullmiddotJIbull Diacuaa the aign1ficance between filtered and untUtored 9roundvator in tona ot rbk to public llltlu

12 hqe t-at Jrt Lip11 Sea co-nt Mo 10 abova1

0

[_

24 M lbullt laet Liaea Thla line ahould atate bullpa tperature apecific conductivity dibullaolved oxyven and flov For bull

25 rage a-t Lipbullbull Thia line ahould atate bullreplace ataft lrfo 4 ancl Mo 11 aurveyora located bullbull bull etcbullr

26 ftllt lbulll Should 1ncl1catt that tbt rtctanvular box ~1 rapreHnta the acreen interval depthbull 1

27 tltlt IbullJt Well No1 bull 71-24 NUI-5 and No 17 are not liated here but are ahovn bullbull havincJ been aaapled according to r1re 2-11

21 rtnu a-u In the lover left detailed area well 110 107 obould bt obovn ao one of tbt vtllo 1nottlltd durinv ouppl-ttl - RJ 1

29 1M9 bull-bullmiddot ad LiMa ft1o liM -ld otttt __ - Inc 1o loaattltl u tbe --_ ot bull bullbull etcbullbull

30 bull- aa IMP Imiddotampmiddot bullmiddot ad DUamiddot ty ftla oont- obould - v1tb bullto treat tbe utreoted trounclvaterbullr

31J ZJffwedlmn1t-=u- vella bullbullbull etabullr

32 pwt bullImiddot zp Cbange bullcenter ltnetbull to _in ltzMtbullr

33 _ a-aa ltdbull 1middotbullmiddotbullmiddot1middot bullM bullM 14Mbull Delete u an11 bullt~~ebull

34

35 bullbullbull bullbullbullbullbullbull bullbull bullbull Cbantbull bullonbull to bullonebull 1 rlnu a-11 Incl1cate tbtt TD 1bull tbt tottl depth of tbt bor11191

37 rtgre a-abull ror well Wo DT-5 chancJt 335 to 430 1 r for STA lfo 2 cha1191 57 o to 55 5 per Table 2-281 alao indicate what bullmbull bullbullnbull

31

39 ragbull 4-1 let rargrapll tit Lb11 Indicate what bullfixedshy- bated laboratory analybulllbullbull ana _

~ 40 ~ Data for Maxiau Surface concentration and llax11NII

luballlflce concentration llhould be directly under tbe dinvbullbull

u ~Define Cbull 43 PMbullbull bullmiddotbull ulaquo tbullt bull ror- of reacl1ft9 the data troa tbe

lut eantenoe at tbe bottbull of h98 4middot6 wllioll aonti- to the top of Page 4bull7 could be converted to an in-text tabler

43 1Mt tbullZ let e-lete hrnup 1p4 ltptepgea At end of aentance ttate bull(ampM liture 2-l)bullr

u ruInent tvi =t aoM oonti- pupinv of ltation lo 1 I 600 9JIII tor 11 lloure u vae done in tbe paetr

u 1M bullmiddotbullmiddot art wyr laquor- MtampMmiddot Wabullbull Waa well 11o a aleo- tor beoJogrcoDbulllr 11M bullmiddotbullmiddot fbull bullmiddotbullmiddotampmiddot ftmiddot tut rtubull IIIMIt attile - ot til bull Hlltenoe bull _ r vure 2bull111

n memiddot llllt M bullo llot Availablebull Mould 1M

J temiddotmiddotmiddot 114 rrbullM 1M IM- lftliall tall _ Wl e - uht1119P--ed rMeral 1 shy

zt =-middott-=t~l middot llllr-J 1e ill _-

so =-middotlnt~CtJ=I Cmiddot Rr-14 1bull AcNn in rtpn

51

52 tbullll bullbulltlu tt Jr4 hrwrag 1bull4 ttga bullstart shyup in lttobull1 la thit date correct

53 _ tbulltta fte Influent and l ftluent data for bullOSOltObull llhould be proparly centered 1

54 ba tbulllt lawt _ hraqrap laet leptepg11 Why have TCI levelbull in well lfo IIU8middot5 decreabulled over tibull What are tile -ible reone

55 IIQ t-11 1111 1 1ttll Lln11 Thibull 1bull an lncoaplete bullentence

---

51 bull-bullbullmiddot la-tm Mlbullbull The data ahould be centered under tba appropriate llaaclincJbullbull

57 lllllLj1J see cont No 1 abov11

51 o bltll fbull7 I IN I Jpound4 -IIbull I If LiM I The text lhould I tate fill VAUIY IIftIIILL - AUA0 1

middot ~ bullbullbull c-nt llo 2 -middotmiddot 60 coluan which averatu the _ There ahoul4 be a

11 nella lrook data1

11 bull-lt ia blockecl by thea fte TCI concentration tor NUS-3

oontour lina1 11 wall 110 71-25 alloulcl allow a Tell concentration of

(11) 0 1 a 11 110 114 alloulcl - a Tell -ation of 11

ut11 d tile liD for 11 110 ns-u ia vitbill t11a 5 U9l

-llnal bullmiddot aQI-11 not a -lac u f ror -iatanay vitll t11a -middot wall -middot 10 anc1 20_be lalle1acl 01 ancl 02 ~iftlJI 9middot u 110 us alloulcl - a Tell -ration of 2 utili

12 u- bull- lllould t11a data for DBQI-7 be inal- in t11allai u_IJ a ali 110bull _ ia -to t11a -t af wan 110 107

- 1a tlla cletaUacl ana t11a 11 ia - to tlla - of Jlo 1011

II - -t 110 21 abova1 IMt~f Wbull laquore M What ia bulla chnical ID on 1-s atabull

Llaubull Por ottimiddot hUVymiddot bullnacl t11a -racr pt alloulcl a-ron t11a lina1

bullbullbull IMI 1=1 1 1 1 tt bullbullbull hrMrp bullbullbull Wbullbullbull What are ~l~rtantial aurce bullrbullbullbullbull dOVncJradient ot the

67 IMbull 1-1 LiM CfM M Thie line ahould atate pllaaa liquid (llUPL) alCJbt axiat in the vicinity of t11a Valley Site bull 1 1-1 Liata Chanqe bullhgtLbull to bullugtLbull 1

11 hqe bull-bull ant sea co-nt No II aboYe1

10 rag 1bull7 apt aoplbullbull hrgrau apt Lip Delate the vord bullvallebull

72 rage bull-a raraqrpll ltt bullbullabullaobullbull W to the and of the aantanca bull (aaa Tabla 1-1) bull1

73 rubull t-1 __ The n and abbraviat1ona llbould be Uated tor all tho chicala bullmiddot9middot 11-Dich1oroetlwle (11-DCA) I

74 hqbull bull-a lyS hrgrytu a he tint Mfttance atarta with bullpeabull theshy

Mfttence atarta vitll bulltetraobloroetllellel tile tll1zd -- nYaiU baok to bullpeabull - ~middot 001111ietont1

b he tint Nntanca A)ll tbat tba -ioala an rei_ tha - Mfttance AJ8 tile - tlliatl

o Third -- - at - of tllb - -a shybullli- -tntiona of 11-DCA I 11-DCII

4 Porth -- - at - of tllia --~ shy41- _trationa of 12-DCA al-l bullmiddot 2nd line troa bottoa- Chantbull bullt2middotDCIbull to bull12-DCampbull1

75 1M bullmiddotbullmiddot bullsbull M Tbe reu1nint Mntenoee Vbiab atart ben -14 be pla- into a -bullbullto par09rapl11

71 _ t=a ltrMrbullmiddot tbulltll lilver le aot llatell bullbull a on lobla 1-11_1 of -m

77 IMt bullmiddotampampmiddot Wbullbull Delate bullvaterbull1

71 11n bull-ampbull tbullSbull rna lttttbullbull Delete bulltraneportbullr

79 1M I=JI SlQ 14JI 111j LlDII Thie 11 ftOt I buatn expoeun acenario r

10 bull-bullbullmiddot Lty frM Httwa Thia line aboulcl be ritbtshyjuatified

11 bullbullubull t-ao I bullmiddotJIbull Diacuaa the aign1ficance between filtered and untUtored 9roundvator in tona ot rbk to public llltlu

12 hqe t-at Jrt Lip11 Sea co-nt Mo 10 abova1

~ 40 ~ Data for Maxiau Surface concentration and llax11NII

luballlflce concentration llhould be directly under tbe dinvbullbull

u ~Define Cbull 43 PMbullbull bullmiddotbull ulaquo tbullt bull ror- of reacl1ft9 the data troa tbe

lut eantenoe at tbe bottbull of h98 4middot6 wllioll aonti- to the top of Page 4bull7 could be converted to an in-text tabler

43 1Mt tbullZ let e-lete hrnup 1p4 ltptepgea At end of aentance ttate bull(ampM liture 2-l)bullr

u ruInent tvi =t aoM oonti- pupinv of ltation lo 1 I 600 9JIII tor 11 lloure u vae done in tbe paetr

u 1M bullmiddotbullmiddot art wyr laquor- MtampMmiddot Wabullbull Waa well 11o a aleo- tor beoJogrcoDbulllr 11M bullmiddotbullmiddot fbull bullmiddotbullmiddotampmiddot ftmiddot tut rtubull IIIMIt attile - ot til bull Hlltenoe bull _ r vure 2bull111

n memiddot llllt M bullo llot Availablebull Mould 1M

J temiddotmiddotmiddot 114 rrbullM 1M IM- lftliall tall _ Wl e - uht1119P--ed rMeral 1 shy

zt =-middott-=t~l middot llllr-J 1e ill _-

so =-middotlnt~CtJ=I Cmiddot Rr-14 1bull AcNn in rtpn

51

52 tbullll bullbulltlu tt Jr4 hrwrag 1bull4 ttga bullstart shyup in lttobull1 la thit date correct

53 _ tbulltta fte Influent and l ftluent data for bullOSOltObull llhould be proparly centered 1

54 ba tbulllt lawt _ hraqrap laet leptepg11 Why have TCI levelbull in well lfo IIU8middot5 decreabulled over tibull What are tile -ible reone

55 IIQ t-11 1111 1 1ttll Lln11 Thibull 1bull an lncoaplete bullentence

---

51 bull-bullbullmiddot la-tm Mlbullbull The data ahould be centered under tba appropriate llaaclincJbullbull

57 lllllLj1J see cont No 1 abov11

51 o bltll fbull7 I IN I Jpound4 -IIbull I If LiM I The text lhould I tate fill VAUIY IIftIIILL - AUA0 1

middot ~ bullbullbull c-nt llo 2 -middotmiddot 60 coluan which averatu the _ There ahoul4 be a

11 nella lrook data1

11 bull-lt ia blockecl by thea fte TCI concentration tor NUS-3

oontour lina1 11 wall 110 71-25 alloulcl allow a Tell concentration of

(11) 0 1 a 11 110 114 alloulcl - a Tell -ation of 11

ut11 d tile liD for 11 110 ns-u ia vitbill t11a 5 U9l

-llnal bullmiddot aQI-11 not a -lac u f ror -iatanay vitll t11a -middot wall -middot 10 anc1 20_be lalle1acl 01 ancl 02 ~iftlJI 9middot u 110 us alloulcl - a Tell -ration of 2 utili

12 u- bull- lllould t11a data for DBQI-7 be inal- in t11allai u_IJ a ali 110bull _ ia -to t11a -t af wan 110 107

- 1a tlla cletaUacl ana t11a 11 ia - to tlla - of Jlo 1011

II - -t 110 21 abova1 IMt~f Wbull laquore M What ia bulla chnical ID on 1-s atabull

Llaubull Por ottimiddot hUVymiddot bullnacl t11a -racr pt alloulcl a-ron t11a lina1

bullbullbull IMI 1=1 1 1 1 tt bullbullbull hrMrp bullbullbull Wbullbullbull What are ~l~rtantial aurce bullrbullbullbullbull dOVncJradient ot the

67 IMbull 1-1 LiM CfM M Thie line ahould atate pllaaa liquid (llUPL) alCJbt axiat in the vicinity of t11a Valley Site bull 1 1-1 Liata Chanqe bullhgtLbull to bullugtLbull 1

11 hqe bull-bull ant sea co-nt No II aboYe1

10 rag 1bull7 apt aoplbullbull hrgrau apt Lip Delate the vord bullvallebull

72 rage bull-a raraqrpll ltt bullbullabullaobullbull W to the and of the aantanca bull (aaa Tabla 1-1) bull1

73 rubull t-1 __ The n and abbraviat1ona llbould be Uated tor all tho chicala bullmiddot9middot 11-Dich1oroetlwle (11-DCA) I

74 hqbull bull-a lyS hrgrytu a he tint Mfttance atarta with bullpeabull theshy

Mfttence atarta vitll bulltetraobloroetllellel tile tll1zd -- nYaiU baok to bullpeabull - ~middot 001111ietont1

b he tint Nntanca A)ll tbat tba -ioala an rei_ tha - Mfttance AJ8 tile - tlliatl

o Third -- - at - of tllb - -a shybullli- -tntiona of 11-DCA I 11-DCII

4 Porth -- - at - of tllia --~ shy41- _trationa of 12-DCA al-l bullmiddot 2nd line troa bottoa- Chantbull bullt2middotDCIbull to bull12-DCampbull1

75 1M bullmiddotbullmiddot bullsbull M Tbe reu1nint Mntenoee Vbiab atart ben -14 be pla- into a -bullbullto par09rapl11

71 _ t=a ltrMrbullmiddot tbulltll lilver le aot llatell bullbull a on lobla 1-11_1 of -m

77 IMt bullmiddotampampmiddot Wbullbull Delate bullvaterbull1

71 11n bull-ampbull tbullSbull rna lttttbullbull Delete bulltraneportbullr

79 1M I=JI SlQ 14JI 111j LlDII Thie 11 ftOt I buatn expoeun acenario r

10 bull-bullbullmiddot Lty frM Httwa Thia line aboulcl be ritbtshyjuatified

11 bullbullubull t-ao I bullmiddotJIbull Diacuaa the aign1ficance between filtered and untUtored 9roundvator in tona ot rbk to public llltlu

12 hqe t-at Jrt Lip11 Sea co-nt Mo 10 abova1

51 bull-bullbullmiddot la-tm Mlbullbull The data ahould be centered under tba appropriate llaaclincJbullbull

57 lllllLj1J see cont No 1 abov11

51 o bltll fbull7 I IN I Jpound4 -IIbull I If LiM I The text lhould I tate fill VAUIY IIftIIILL - AUA0 1

middot ~ bullbullbull c-nt llo 2 -middotmiddot 60 coluan which averatu the _ There ahoul4 be a

11 nella lrook data1

11 bull-lt ia blockecl by thea fte TCI concentration tor NUS-3

oontour lina1 11 wall 110 71-25 alloulcl allow a Tell concentration of

(11) 0 1 a 11 110 114 alloulcl - a Tell -ation of 11

ut11 d tile liD for 11 110 ns-u ia vitbill t11a 5 U9l

-llnal bullmiddot aQI-11 not a -lac u f ror -iatanay vitll t11a -middot wall -middot 10 anc1 20_be lalle1acl 01 ancl 02 ~iftlJI 9middot u 110 us alloulcl - a Tell -ration of 2 utili

12 u- bull- lllould t11a data for DBQI-7 be inal- in t11allai u_IJ a ali 110bull _ ia -to t11a -t af wan 110 107

- 1a tlla cletaUacl ana t11a 11 ia - to tlla - of Jlo 1011

II - -t 110 21 abova1 IMt~f Wbull laquore M What ia bulla chnical ID on 1-s atabull

Llaubull Por ottimiddot hUVymiddot bullnacl t11a -racr pt alloulcl a-ron t11a lina1

bullbullbull IMI 1=1 1 1 1 tt bullbullbull hrMrp bullbullbull Wbullbullbull What are ~l~rtantial aurce bullrbullbullbullbull dOVncJradient ot the

67 IMbull 1-1 LiM CfM M Thie line ahould atate pllaaa liquid (llUPL) alCJbt axiat in the vicinity of t11a Valley Site bull 1 1-1 Liata Chanqe bullhgtLbull to bullugtLbull 1

11 hqe bull-bull ant sea co-nt No II aboYe1

10 rag 1bull7 apt aoplbullbull hrgrau apt Lip Delate the vord bullvallebull

72 rage bull-a raraqrpll ltt bullbullabullaobullbull W to the and of the aantanca bull (aaa Tabla 1-1) bull1

73 rubull t-1 __ The n and abbraviat1ona llbould be Uated tor all tho chicala bullmiddot9middot 11-Dich1oroetlwle (11-DCA) I

74 hqbull bull-a lyS hrgrytu a he tint Mfttance atarta with bullpeabull theshy

Mfttence atarta vitll bulltetraobloroetllellel tile tll1zd -- nYaiU baok to bullpeabull - ~middot 001111ietont1

b he tint Nntanca A)ll tbat tba -ioala an rei_ tha - Mfttance AJ8 tile - tlliatl

o Third -- - at - of tllb - -a shybullli- -tntiona of 11-DCA I 11-DCII

4 Porth -- - at - of tllia --~ shy41- _trationa of 12-DCA al-l bullmiddot 2nd line troa bottoa- Chantbull bullt2middotDCIbull to bull12-DCampbull1

75 1M bullmiddotbullmiddot bullsbull M Tbe reu1nint Mntenoee Vbiab atart ben -14 be pla- into a -bullbullto par09rapl11

71 _ t=a ltrMrbullmiddot tbulltll lilver le aot llatell bullbull a on lobla 1-11_1 of -m

77 IMt bullmiddotampampmiddot Wbullbull Delate bullvaterbull1

71 11n bull-ampbull tbullSbull rna lttttbullbull Delete bulltraneportbullr

79 1M I=JI SlQ 14JI 111j LlDII Thie 11 ftOt I buatn expoeun acenario r

10 bull-bullbullmiddot Lty frM Httwa Thia line aboulcl be ritbtshyjuatified

11 bullbullubull t-ao I bullmiddotJIbull Diacuaa the aign1ficance between filtered and untUtored 9roundvator in tona ot rbk to public llltlu

12 hqe t-at Jrt Lip11 Sea co-nt Mo 10 abova1

11 hqe bull-bull ant sea co-nt No II aboYe1

10 rag 1bull7 apt aoplbullbull hrgrau apt Lip Delate the vord bullvallebull

72 rage bull-a raraqrpll ltt bullbullabullaobullbull W to the and of the aantanca bull (aaa Tabla 1-1) bull1

73 rubull t-1 __ The n and abbraviat1ona llbould be Uated tor all tho chicala bullmiddot9middot 11-Dich1oroetlwle (11-DCA) I

74 hqbull bull-a lyS hrgrytu a he tint Mfttance atarta with bullpeabull theshy

Mfttence atarta vitll bulltetraobloroetllellel tile tll1zd -- nYaiU baok to bullpeabull - ~middot 001111ietont1

b he tint Nntanca A)ll tbat tba -ioala an rei_ tha - Mfttance AJ8 tile - tlliatl

o Third -- - at - of tllb - -a shybullli- -tntiona of 11-DCA I 11-DCII

4 Porth -- - at - of tllia --~ shy41- _trationa of 12-DCA al-l bullmiddot 2nd line troa bottoa- Chantbull bullt2middotDCIbull to bull12-DCampbull1

75 1M bullmiddotbullmiddot bullsbull M Tbe reu1nint Mntenoee Vbiab atart ben -14 be pla- into a -bullbullto par09rapl11

71 _ t=a ltrMrbullmiddot tbulltll lilver le aot llatell bullbull a on lobla 1-11_1 of -m

77 IMt bullmiddotampampmiddot Wbullbull Delate bullvaterbull1

71 11n bull-ampbull tbullSbull rna lttttbullbull Delete bulltraneportbullr

79 1M I=JI SlQ 14JI 111j LlDII Thie 11 ftOt I buatn expoeun acenario r

10 bull-bullbullmiddot Lty frM Httwa Thia line aboulcl be ritbtshyjuatified

11 bullbullubull t-ao I bullmiddotJIbull Diacuaa the aign1ficance between filtered and untUtored 9roundvator in tona ot rbk to public llltlu

12 hqe t-at Jrt Lip11 Sea co-nt Mo 10 abova1

~ 1bull17 ampat laraprapll at Lilli Liatint tha occurrence of flab apeci that ara reported fro peraoMl coaun1cat1on ahould be abown bullbull auch bull middot9middot (Peraonal Coaunication Claavar data) 1

13

u paqt bull-at arlaquo rarnrw Sae Coaent Ito 10 -middotmiddot 15 IU1LJ11 HaadincJbull ara not above the llated contuinantar

rw z-1 aat Lipbull CfM Mttbullbull aaa co-nt No 13 aboveJ86

11ft 7bullt legtltp ZJI ld tarnrw lr4 Jlp11 IH middot ~t Mo n abovar hll tbulltamp bullbulltlg 11 bullbullbull hrMUDmiddot tta Llya Define bullOQU9b rponae in a flab apeoiaabullr IIIIILllJ tllylana Chloride ia liabd tvioar

to IIIIILllJ -rican lal doaa not bread in fnab vatarr

91 IIIIILll1 Data ahould ba placed directly Wider tile MedlDpr

n ~

_ bull-ampmiddot - bull rlbullbull ftlbull liM abaa1dmiddot atata bullitbull outlet z-auy --tar now dinat~ anbullbullbullbullbullr

t4 IMt bull-bull teeamp ftla Mntuca doM not a

middot 11M 11 let I la4 LJtnl ThiH HntencM do not Mite-middot middot-middotmiddot _ lpllftlmiddot a let -- - Bow doaa tllia _ vitll baaql shy

_trationa b 4th Hntence - Tbia aantance doea not U

t7 M bullmiddotbullmiddot 1utlg aat apt Thla line aboUld read bullrec)ArdirMJ tha prent extant of qroundvatar contaalnation at tbebullbull bull bull bull1

91 uqe bull-bullmiddot bullbullstlop 111 lp4 taraqrm tp Llya Thie line bullhou14 read bullhowever the Haverhill Lan4f111 bullbullbulletcbull

99 bullubull bull-bullmiddot tJt Lipbull frbull Mttbullbull Thibull line ahould read bullai9ratincJ frobull the Valley Site thibull plUM ie the aajor bull

100 rag bull-t bullbull Ltae crw Mttbullbull Thia line ahould read bullA relocationlexpanaionluP9rade bullbullbulletcbull 1

101 f fCt 1~~~ tpbull Thia ahou1d aay bullACZTONI

102 bullubull a-t bullt ttpe EM ttbullbull Delete the word bulliebullr

103 rye IbullJIr bulluttpa Jrepgteetytu belyelew lr4 LiP Cbampnfll bullanalyaiabull to bullanalyticalbull I

104 Jlbull tbulllt 11axtm concentration (u9JL) forbull trane-1 2-Dichloroethene ahould be 23 000 111-Trich1oroethane bull bull 1200 trichloroethene 150000 Tetrachloroethane 540 Toluene 11000

~ bull111-Tricll1oroethenebull to bull111-ftioblozroetbaaebull Cllaft9e 7dclll-- lo ftidll-1 AlM shyaccuncy of detection fr-nciul

101 c II fteleJ Qf fn -~-l~ e Int -le tor Mleot 111 and aleo el t -ioale u -tui- of ooncem (coca) ie not clear fro tllie

=~~ moeo-il~i- and

-of-ion r of-ione nlatl riek factor ~~~~~ conoe~~tratione (if available) and a - or tvo vord explanation of tile baoia for Mleotilll a - a coc

71111 Cllaioal or conoem selection Proceaa tablaa tor vrouadwater eurface water and MdiMnta are bportant and lnf-tiva tablabull and llhould 1111 MVad into tile Min -Y of tba -middot ie leotion 1

107 IIQIIM 111 IILRrJQI or ltQIDIIIIIfN u CIFIIIbull ftlla MOtion doea not clearly convey the ratlon11la for bullbulll-ift9 coea Chical apacUic inforation ia included without connecting thia inforution to a deciaion Alao there are inconaiatenciea in applyincJ aelectlon criteria to alta contuinanta

a lecpnd pereqreph pegbull t-11 bullPCII 1 1-dicbloroethaneJ

~itt1~c~=~~i 1~lr1P~bable buun carcin09ena bull

Sobull contaainanta at thi8 aite vbicb bave been claaaified bullbull poaaible or probable buaan caroinovena by the IPA vere Hlectecl aa COC (1 1-Dcl JCI 1 l-OCI and 1 3-DCA) vbile otherbull vera not aelected (1 11shyTCA chloroethane thylene chloride) Waa carcinOCJenic clbullbullbull a criteria in aelectint COCa If it vaa the inconaiatenciea in applyincJ thia criteria to all contaainanta auat ba addreaaed If not vbat ia the utility of tbia aentence

b Plaaaa identify coapouncta in a conaiate~t aanner throu9bout tho toxt ltbullmiddot9middot PCI ancl totracbloroeth)

c (Laot pora9rap11 po9o 6-3) Alth0119h bulltbfl I t

~o~~~-=1~~1-=--~ ~~ aurface water aaple at a concentration exceedint a tontotivo SIA IICL (5 119L) bull ~~ llotbyl oblorido io not iftCludod in Sio I in tbo toblo -itlod bullCIIoaiaal of - lolootibull - shylurf- Wotorobull oltboutll lt lo lnol- in ftlo 4-4middot-rr of loloctod contulnanto ln lurf- wator bull In 1olllo 4-4 tbo dotootlon f- in ourt- votor

riM dotootlon - ln ~tor lo lt74 or -ast lo 111 An exOMdanoe of a tefttative IICL in a aurtaoe water bocly wlllcb lo not - for ddnklnt voter io not ouftlcl- juotitlaotlon for oolootlnt a contul11011t ao

1~~l~~middotmiddot~~middot~~nofCm 1 tbot tblo voo - to laboratory -lnotion tblo cbMlcol -ld bo lncllldod ao a coc duo to bl9b f__ of dotoctlon

d (Laat paratrapb pa9e 6-l) bull111-TCA and 13-DCS were not Hlectecl aa COCa because thaH copounda ranked lov in the toxicity acreenift9 bull and becauH the aaxi8lal concentrationbull of theabull cobullpounda in 9roundvater aaplaa doea not exceed current SDWA MCLabull

111-TCA ahould be included bullbull a coc becauH it haa - blotodaolly dotoctod at tblo olto at a bl9b

~Tult() h1~h1nmiddot~1~1~ and procbullbullbullbullbullmiddot

101 rchbull~rthct~t~l~bullr~~-1 1r~ter include buiua an4 line The -un4bull bullbould be included aa coca Alo it ia atated in thla aactlon that bullJaria an4 bulleleniua vare infrequently detactad in 9-tu at -ampratione exoaeclint cnarroat IDIIA IICZ bull bull bull bullbullitbar chlcal vaa detected at concentrationbull axcaecUnt pnpoeet SOMA IICLabullbullbull bull Silver however vaa choaan aa a COC becaUM it exceeded the cnurut SOMA IICL once The Hlctlon proceaa of COC abould be coneiatant fro81 clttoal to chlcal If a currant or propoaed MCL la exceeded even once the contaalnant ahould be included bullbull a coc

109 rn~too~~ic~ ~==middot~ovr-t0= or intutlon routa or both If it ibull botb tban include tba clabullbulliflcatloa of nicbl abull clbullbullbull I - - u clau 111via tba lbbalatl011 roata

110 DIY middot-middotmiddot a ben ia preaantly no CPP for 11-DCA

b =nt ~n=l~an=r~~laiata r- ill rllllc --amp

c be p_s IICL for lead (at tba _ la ClllrrtlJ I 9L

111 _ t=tt ~D bullmiddotbullbull Wbat ia tM Mala for U u _ dura~on (ID) of 30 yean lnataad of 70 JMHf In tba - of -lflc lnfonaamplon bull11011 aa local varltlcation of IIVibulllnt activitlebull bullbullbull- 70 yean for ID

112 lbullll IWJbull bullmiddotbullmiddotbullmiddotbullbull hpoeura racton llaneookIP~I001bull11043 lbull dated _Uit net ltlt

b ~l~~~~~conbulltant for banaana ibull

c Change the axpoaure duration to 70 yearbull for a lltetiM expoaure

114 rna a-at 1111111 a-u Change the expoaure duration to 70 yeara for a lifetlbulle expoaure

10

115 IMI 1bull11 IQIIII 1bull1 Jtlue Cor llbullla a An individual l8 unlikely to obtain all of bb Uab

fro the aource eapecially thia aource In the abaanca of apec1f1c intonation the IPA lxpoaure ractora Handbook reconda adoptint a diet fraction value equal to 02 (EPA March 1919 IPA1001-It043 P9 16) linea the Johneon CrMk llaterabed ia a -ll area I would recoend adoptlnt thla value for tbe n Aloo check with the town hall to verify tha d- to whlcll thia water body l8 Uohad

b An aauta of 113 9Mal lo raaaonabla for flnfiab but the aauta for axpoaura frequency (41 dfyr) io for Uab IIIII ohallflah) In tha abaanca of aite-opaa1fic data and to be conalatent vitb other upoaure bullbullbull-tiona uaa middot 5 9day for tha ift9aaticn rate (Ia)and 315 dfyaar for tha axpooura fr- (IP)

11middot 1Jmiddotft~rJC41 s-1 not bull- with valuaa Uatad 1n Appendix r

b Trichloroethane - Tile IPA baa adopted a value of 17 fer thio cooopound

a auov- llhat _i vaa 111e ICP for aUYU derived fro If it 1a Wlllkaly that thb _1 exlata in

f-~-~~~ch~ro~-r~~111 111 IMI tbull middotmiddotmiddot Tile wlita for tbe car

(care 1c elope factor) aboultl be (111119-tlay)

111bull _ r IIIQIDU bull bull MMmiddot

~~dct~~~frrl~~~~total ve1tbtad ift9ut1on and danal - factor lila corrupontl1ng haoarlaquo index and cancar riak abould alao than ba

liJI DIIIJI1 a AltboucJb 1t baa baan atatad earlier it would be

halptul tc have a footnote at the and of th1a tabla explainiftiJ vhy the reaaonabla vorat caae haa not been calculated for area A

b Leave out the csra for the inhalation route bey add unnacaaaary intonation to t hia table

c Why vera firat round data evaluated vhan aaaeaaint lifatibull cancer riaka for each of the acanarleraquo an4 not aacond round data

11

100 rag bull-t bullbull Ltae crw Mttbullbull Thia line ahould read bullA relocationlexpanaionluP9rade bullbullbulletcbull 1

101 f fCt 1~~~ tpbull Thia ahou1d aay bullACZTONI

102 bullubull a-t bullt ttpe EM ttbullbull Delete the word bulliebullr

103 rye IbullJIr bulluttpa Jrepgteetytu belyelew lr4 LiP Cbampnfll bullanalyaiabull to bullanalyticalbull I

104 Jlbull tbulllt 11axtm concentration (u9JL) forbull trane-1 2-Dichloroethene ahould be 23 000 111-Trich1oroethane bull bull 1200 trichloroethene 150000 Tetrachloroethane 540 Toluene 11000

~ bull111-Tricll1oroethenebull to bull111-ftioblozroetbaaebull Cllaft9e 7dclll-- lo ftidll-1 AlM shyaccuncy of detection fr-nciul

101 c II fteleJ Qf fn -~-l~ e Int -le tor Mleot 111 and aleo el t -ioale u -tui- of ooncem (coca) ie not clear fro tllie

=~~ moeo-il~i- and

-of-ion r of-ione nlatl riek factor ~~~~~ conoe~~tratione (if available) and a - or tvo vord explanation of tile baoia for Mleotilll a - a coc

71111 Cllaioal or conoem selection Proceaa tablaa tor vrouadwater eurface water and MdiMnta are bportant and lnf-tiva tablabull and llhould 1111 MVad into tile Min -Y of tba -middot ie leotion 1

107 IIQIIM 111 IILRrJQI or ltQIDIIIIIfN u CIFIIIbull ftlla MOtion doea not clearly convey the ratlon11la for bullbulll-ift9 coea Chical apacUic inforation ia included without connecting thia inforution to a deciaion Alao there are inconaiatenciea in applyincJ aelectlon criteria to alta contuinanta

a lecpnd pereqreph pegbull t-11 bullPCII 1 1-dicbloroethaneJ

~itt1~c~=~~i 1~lr1P~bable buun carcin09ena bull

Sobull contaainanta at thi8 aite vbicb bave been claaaified bullbull poaaible or probable buaan caroinovena by the IPA vere Hlectecl aa COC (1 1-Dcl JCI 1 l-OCI and 1 3-DCA) vbile otherbull vera not aelected (1 11shyTCA chloroethane thylene chloride) Waa carcinOCJenic clbullbullbull a criteria in aelectint COCa If it vaa the inconaiatenciea in applyincJ thia criteria to all contaainanta auat ba addreaaed If not vbat ia the utility of tbia aentence

b Plaaaa identify coapouncta in a conaiate~t aanner throu9bout tho toxt ltbullmiddot9middot PCI ancl totracbloroeth)

c (Laot pora9rap11 po9o 6-3) Alth0119h bulltbfl I t

~o~~~-=1~~1-=--~ ~~ aurface water aaple at a concentration exceedint a tontotivo SIA IICL (5 119L) bull ~~ llotbyl oblorido io not iftCludod in Sio I in tbo toblo -itlod bullCIIoaiaal of - lolootibull - shylurf- Wotorobull oltboutll lt lo lnol- in ftlo 4-4middot-rr of loloctod contulnanto ln lurf- wator bull In 1olllo 4-4 tbo dotootlon f- in ourt- votor

riM dotootlon - ln ~tor lo lt74 or -ast lo 111 An exOMdanoe of a tefttative IICL in a aurtaoe water bocly wlllcb lo not - for ddnklnt voter io not ouftlcl- juotitlaotlon for oolootlnt a contul11011t ao

1~~l~~middotmiddot~~middot~~nofCm 1 tbot tblo voo - to laboratory -lnotion tblo cbMlcol -ld bo lncllldod ao a coc duo to bl9b f__ of dotoctlon

d (Laat paratrapb pa9e 6-l) bull111-TCA and 13-DCS were not Hlectecl aa COCa because thaH copounda ranked lov in the toxicity acreenift9 bull and becauH the aaxi8lal concentrationbull of theabull cobullpounda in 9roundvater aaplaa doea not exceed current SDWA MCLabull

111-TCA ahould be included bullbull a coc becauH it haa - blotodaolly dotoctod at tblo olto at a bl9b

~Tult() h1~h1nmiddot~1~1~ and procbullbullbullbullbullmiddot

101 rchbull~rthct~t~l~bullr~~-1 1r~ter include buiua an4 line The -un4bull bullbould be included aa coca Alo it ia atated in thla aactlon that bullJaria an4 bulleleniua vare infrequently detactad in 9-tu at -ampratione exoaeclint cnarroat IDIIA IICZ bull bull bull bullbullitbar chlcal vaa detected at concentrationbull axcaecUnt pnpoeet SOMA IICLabullbullbull bull Silver however vaa choaan aa a COC becaUM it exceeded the cnurut SOMA IICL once The Hlctlon proceaa of COC abould be coneiatant fro81 clttoal to chlcal If a currant or propoaed MCL la exceeded even once the contaalnant ahould be included bullbull a coc

109 rn~too~~ic~ ~==middot~ovr-t0= or intutlon routa or both If it ibull botb tban include tba clabullbulliflcatloa of nicbl abull clbullbullbull I - - u clau 111via tba lbbalatl011 roata

110 DIY middot-middotmiddot a ben ia preaantly no CPP for 11-DCA

b =nt ~n=l~an=r~~laiata r- ill rllllc --amp

c be p_s IICL for lead (at tba _ la ClllrrtlJ I 9L

111 _ t=tt ~D bullmiddotbullbull Wbat ia tM Mala for U u _ dura~on (ID) of 30 yean lnataad of 70 JMHf In tba - of -lflc lnfonaamplon bull11011 aa local varltlcation of IIVibulllnt activitlebull bullbullbull- 70 yean for ID

112 lbullll IWJbull bullmiddotbullmiddotbullmiddotbullbull hpoeura racton llaneookIP~I001bull11043 lbull dated _Uit net ltlt

b ~l~~~~~conbulltant for banaana ibull

c Change the axpoaure duration to 70 yearbull for a lltetiM expoaure

114 rna a-at 1111111 a-u Change the expoaure duration to 70 yeara for a lifetlbulle expoaure

10

115 IMI 1bull11 IQIIII 1bull1 Jtlue Cor llbullla a An individual l8 unlikely to obtain all of bb Uab

fro the aource eapecially thia aource In the abaanca of apec1f1c intonation the IPA lxpoaure ractora Handbook reconda adoptint a diet fraction value equal to 02 (EPA March 1919 IPA1001-It043 P9 16) linea the Johneon CrMk llaterabed ia a -ll area I would recoend adoptlnt thla value for tbe n Aloo check with the town hall to verify tha d- to whlcll thia water body l8 Uohad

b An aauta of 113 9Mal lo raaaonabla for flnfiab but the aauta for axpoaura frequency (41 dfyr) io for Uab IIIII ohallflah) In tha abaanca of aite-opaa1fic data and to be conalatent vitb other upoaure bullbullbull-tiona uaa middot 5 9day for tha ift9aaticn rate (Ia)and 315 dfyaar for tha axpooura fr- (IP)

11middot 1Jmiddotft~rJC41 s-1 not bull- with valuaa Uatad 1n Appendix r

b Trichloroethane - Tile IPA baa adopted a value of 17 fer thio cooopound

a auov- llhat _i vaa 111e ICP for aUYU derived fro If it 1a Wlllkaly that thb _1 exlata in

f-~-~~~ch~ro~-r~~111 111 IMI tbull middotmiddotmiddot Tile wlita for tbe car

(care 1c elope factor) aboultl be (111119-tlay)

111bull _ r IIIQIDU bull bull MMmiddot

~~dct~~~frrl~~~~total ve1tbtad ift9ut1on and danal - factor lila corrupontl1ng haoarlaquo index and cancar riak abould alao than ba

liJI DIIIJI1 a AltboucJb 1t baa baan atatad earlier it would be

halptul tc have a footnote at the and of th1a tabla explainiftiJ vhy the reaaonabla vorat caae haa not been calculated for area A

b Leave out the csra for the inhalation route bey add unnacaaaary intonation to t hia table

c Why vera firat round data evaluated vhan aaaeaaint lifatibull cancer riaka for each of the acanarleraquo an4 not aacond round data

11

a lecpnd pereqreph pegbull t-11 bullPCII 1 1-dicbloroethaneJ

~itt1~c~=~~i 1~lr1P~bable buun carcin09ena bull

Sobull contaainanta at thi8 aite vbicb bave been claaaified bullbull poaaible or probable buaan caroinovena by the IPA vere Hlectecl aa COC (1 1-Dcl JCI 1 l-OCI and 1 3-DCA) vbile otherbull vera not aelected (1 11shyTCA chloroethane thylene chloride) Waa carcinOCJenic clbullbullbull a criteria in aelectint COCa If it vaa the inconaiatenciea in applyincJ thia criteria to all contaainanta auat ba addreaaed If not vbat ia the utility of tbia aentence

b Plaaaa identify coapouncta in a conaiate~t aanner throu9bout tho toxt ltbullmiddot9middot PCI ancl totracbloroeth)

c (Laot pora9rap11 po9o 6-3) Alth0119h bulltbfl I t

~o~~~-=1~~1-=--~ ~~ aurface water aaple at a concentration exceedint a tontotivo SIA IICL (5 119L) bull ~~ llotbyl oblorido io not iftCludod in Sio I in tbo toblo -itlod bullCIIoaiaal of - lolootibull - shylurf- Wotorobull oltboutll lt lo lnol- in ftlo 4-4middot-rr of loloctod contulnanto ln lurf- wator bull In 1olllo 4-4 tbo dotootlon f- in ourt- votor

riM dotootlon - ln ~tor lo lt74 or -ast lo 111 An exOMdanoe of a tefttative IICL in a aurtaoe water bocly wlllcb lo not - for ddnklnt voter io not ouftlcl- juotitlaotlon for oolootlnt a contul11011t ao

1~~l~~middotmiddot~~middot~~nofCm 1 tbot tblo voo - to laboratory -lnotion tblo cbMlcol -ld bo lncllldod ao a coc duo to bl9b f__ of dotoctlon

d (Laat paratrapb pa9e 6-l) bull111-TCA and 13-DCS were not Hlectecl aa COCa because thaH copounda ranked lov in the toxicity acreenift9 bull and becauH the aaxi8lal concentrationbull of theabull cobullpounda in 9roundvater aaplaa doea not exceed current SDWA MCLabull

111-TCA ahould be included bullbull a coc becauH it haa - blotodaolly dotoctod at tblo olto at a bl9b

~Tult() h1~h1nmiddot~1~1~ and procbullbullbullbullbullmiddot

101 rchbull~rthct~t~l~bullr~~-1 1r~ter include buiua an4 line The -un4bull bullbould be included aa coca Alo it ia atated in thla aactlon that bullJaria an4 bulleleniua vare infrequently detactad in 9-tu at -ampratione exoaeclint cnarroat IDIIA IICZ bull bull bull bullbullitbar chlcal vaa detected at concentrationbull axcaecUnt pnpoeet SOMA IICLabullbullbull bull Silver however vaa choaan aa a COC becaUM it exceeded the cnurut SOMA IICL once The Hlctlon proceaa of COC abould be coneiatant fro81 clttoal to chlcal If a currant or propoaed MCL la exceeded even once the contaalnant ahould be included bullbull a coc

109 rn~too~~ic~ ~==middot~ovr-t0= or intutlon routa or both If it ibull botb tban include tba clabullbulliflcatloa of nicbl abull clbullbullbull I - - u clau 111via tba lbbalatl011 roata

110 DIY middot-middotmiddot a ben ia preaantly no CPP for 11-DCA

b =nt ~n=l~an=r~~laiata r- ill rllllc --amp

c be p_s IICL for lead (at tba _ la ClllrrtlJ I 9L

111 _ t=tt ~D bullmiddotbullbull Wbat ia tM Mala for U u _ dura~on (ID) of 30 yean lnataad of 70 JMHf In tba - of -lflc lnfonaamplon bull11011 aa local varltlcation of IIVibulllnt activitlebull bullbullbull- 70 yean for ID

112 lbullll IWJbull bullmiddotbullmiddotbullmiddotbullbull hpoeura racton llaneookIP~I001bull11043 lbull dated _Uit net ltlt

b ~l~~~~~conbulltant for banaana ibull

c Change the axpoaure duration to 70 yearbull for a lltetiM expoaure

114 rna a-at 1111111 a-u Change the expoaure duration to 70 yeara for a lifetlbulle expoaure

10

115 IMI 1bull11 IQIIII 1bull1 Jtlue Cor llbullla a An individual l8 unlikely to obtain all of bb Uab

fro the aource eapecially thia aource In the abaanca of apec1f1c intonation the IPA lxpoaure ractora Handbook reconda adoptint a diet fraction value equal to 02 (EPA March 1919 IPA1001-It043 P9 16) linea the Johneon CrMk llaterabed ia a -ll area I would recoend adoptlnt thla value for tbe n Aloo check with the town hall to verify tha d- to whlcll thia water body l8 Uohad

b An aauta of 113 9Mal lo raaaonabla for flnfiab but the aauta for axpoaura frequency (41 dfyr) io for Uab IIIII ohallflah) In tha abaanca of aite-opaa1fic data and to be conalatent vitb other upoaure bullbullbull-tiona uaa middot 5 9day for tha ift9aaticn rate (Ia)and 315 dfyaar for tha axpooura fr- (IP)

11middot 1Jmiddotft~rJC41 s-1 not bull- with valuaa Uatad 1n Appendix r

b Trichloroethane - Tile IPA baa adopted a value of 17 fer thio cooopound

a auov- llhat _i vaa 111e ICP for aUYU derived fro If it 1a Wlllkaly that thb _1 exlata in

f-~-~~~ch~ro~-r~~111 111 IMI tbull middotmiddotmiddot Tile wlita for tbe car

(care 1c elope factor) aboultl be (111119-tlay)

111bull _ r IIIQIDU bull bull MMmiddot

~~dct~~~frrl~~~~total ve1tbtad ift9ut1on and danal - factor lila corrupontl1ng haoarlaquo index and cancar riak abould alao than ba

liJI DIIIJI1 a AltboucJb 1t baa baan atatad earlier it would be

halptul tc have a footnote at the and of th1a tabla explainiftiJ vhy the reaaonabla vorat caae haa not been calculated for area A

b Leave out the csra for the inhalation route bey add unnacaaaary intonation to t hia table

c Why vera firat round data evaluated vhan aaaeaaint lifatibull cancer riaka for each of the acanarleraquo an4 not aacond round data

11

101 rchbull~rthct~t~l~bullr~~-1 1r~ter include buiua an4 line The -un4bull bullbould be included aa coca Alo it ia atated in thla aactlon that bullJaria an4 bulleleniua vare infrequently detactad in 9-tu at -ampratione exoaeclint cnarroat IDIIA IICZ bull bull bull bullbullitbar chlcal vaa detected at concentrationbull axcaecUnt pnpoeet SOMA IICLabullbullbull bull Silver however vaa choaan aa a COC becaUM it exceeded the cnurut SOMA IICL once The Hlctlon proceaa of COC abould be coneiatant fro81 clttoal to chlcal If a currant or propoaed MCL la exceeded even once the contaalnant ahould be included bullbull a coc

109 rn~too~~ic~ ~==middot~ovr-t0= or intutlon routa or both If it ibull botb tban include tba clabullbulliflcatloa of nicbl abull clbullbullbull I - - u clau 111via tba lbbalatl011 roata

110 DIY middot-middotmiddot a ben ia preaantly no CPP for 11-DCA

b =nt ~n=l~an=r~~laiata r- ill rllllc --amp

c be p_s IICL for lead (at tba _ la ClllrrtlJ I 9L

111 _ t=tt ~D bullmiddotbullbull Wbat ia tM Mala for U u _ dura~on (ID) of 30 yean lnataad of 70 JMHf In tba - of -lflc lnfonaamplon bull11011 aa local varltlcation of IIVibulllnt activitlebull bullbullbull- 70 yean for ID

112 lbullll IWJbull bullmiddotbullmiddotbullmiddotbullbull hpoeura racton llaneookIP~I001bull11043 lbull dated _Uit net ltlt

b ~l~~~~~conbulltant for banaana ibull

c Change the axpoaure duration to 70 yearbull for a lltetiM expoaure

114 rna a-at 1111111 a-u Change the expoaure duration to 70 yeara for a lifetlbulle expoaure

10

115 IMI 1bull11 IQIIII 1bull1 Jtlue Cor llbullla a An individual l8 unlikely to obtain all of bb Uab

fro the aource eapecially thia aource In the abaanca of apec1f1c intonation the IPA lxpoaure ractora Handbook reconda adoptint a diet fraction value equal to 02 (EPA March 1919 IPA1001-It043 P9 16) linea the Johneon CrMk llaterabed ia a -ll area I would recoend adoptlnt thla value for tbe n Aloo check with the town hall to verify tha d- to whlcll thia water body l8 Uohad

b An aauta of 113 9Mal lo raaaonabla for flnfiab but the aauta for axpoaura frequency (41 dfyr) io for Uab IIIII ohallflah) In tha abaanca of aite-opaa1fic data and to be conalatent vitb other upoaure bullbullbull-tiona uaa middot 5 9day for tha ift9aaticn rate (Ia)and 315 dfyaar for tha axpooura fr- (IP)

11middot 1Jmiddotft~rJC41 s-1 not bull- with valuaa Uatad 1n Appendix r

b Trichloroethane - Tile IPA baa adopted a value of 17 fer thio cooopound

a auov- llhat _i vaa 111e ICP for aUYU derived fro If it 1a Wlllkaly that thb _1 exlata in

f-~-~~~ch~ro~-r~~111 111 IMI tbull middotmiddotmiddot Tile wlita for tbe car

(care 1c elope factor) aboultl be (111119-tlay)

111bull _ r IIIQIDU bull bull MMmiddot

~~dct~~~frrl~~~~total ve1tbtad ift9ut1on and danal - factor lila corrupontl1ng haoarlaquo index and cancar riak abould alao than ba

liJI DIIIJI1 a AltboucJb 1t baa baan atatad earlier it would be

halptul tc have a footnote at the and of th1a tabla explainiftiJ vhy the reaaonabla vorat caae haa not been calculated for area A

b Leave out the csra for the inhalation route bey add unnacaaaary intonation to t hia table

c Why vera firat round data evaluated vhan aaaeaaint lifatibull cancer riaka for each of the acanarleraquo an4 not aacond round data

11

115 IMI 1bull11 IQIIII 1bull1 Jtlue Cor llbullla a An individual l8 unlikely to obtain all of bb Uab

fro the aource eapecially thia aource In the abaanca of apec1f1c intonation the IPA lxpoaure ractora Handbook reconda adoptint a diet fraction value equal to 02 (EPA March 1919 IPA1001-It043 P9 16) linea the Johneon CrMk llaterabed ia a -ll area I would recoend adoptlnt thla value for tbe n Aloo check with the town hall to verify tha d- to whlcll thia water body l8 Uohad

b An aauta of 113 9Mal lo raaaonabla for flnfiab but the aauta for axpoaura frequency (41 dfyr) io for Uab IIIII ohallflah) In tha abaanca of aite-opaa1fic data and to be conalatent vitb other upoaure bullbullbull-tiona uaa middot 5 9day for tha ift9aaticn rate (Ia)and 315 dfyaar for tha axpooura fr- (IP)

11middot 1Jmiddotft~rJC41 s-1 not bull- with valuaa Uatad 1n Appendix r

b Trichloroethane - Tile IPA baa adopted a value of 17 fer thio cooopound

a auov- llhat _i vaa 111e ICP for aUYU derived fro If it 1a Wlllkaly that thb _1 exlata in

f-~-~~~ch~ro~-r~~111 111 IMI tbull middotmiddotmiddot Tile wlita for tbe car

(care 1c elope factor) aboultl be (111119-tlay)

111bull _ r IIIQIDU bull bull MMmiddot

~~dct~~~frrl~~~~total ve1tbtad ift9ut1on and danal - factor lila corrupontl1ng haoarlaquo index and cancar riak abould alao than ba

liJI DIIIJI1 a AltboucJb 1t baa baan atatad earlier it would be

halptul tc have a footnote at the and of th1a tabla explainiftiJ vhy the reaaonabla vorat caae haa not been calculated for area A

b Leave out the csra for the inhalation route bey add unnacaaaary intonation to t hia table

c Why vera firat round data evaluated vhan aaaeaaint lifatibull cancer riaka for each of the acanarleraquo an4 not aacond round data

11

ct It ohoulcl be Mntionocl at tho bottoo of thio tabla ucl al110 in the auaary aection for rlaka froa Area A tbat the calculated axpoaura and thua riat aay undartiute actual axpoaun and rlalca froa volatile ortanic copounda by one-half Thia ia becauH the contribution fro thaaa c~ via the inbalatlbull pathway ia not iiiCiluded in thia bullbullbullbullbull-nt

bullmiddot Adjuat the aury of riaU to account for chantbullbull due to Couant No107

120 raqe 1bull11 raat raraqrapll lat ltattDttl Rov doa tba raaulta of a noncarclnocJenic riet aaaaaiiMftt tor an aclult inclioato that tho HI voulcl not axcaocl unity for a cbild in tho - ooanario Thio vould not be an obvioua -ion for -t nacluo Plovida a beolo for thio conoluion

121bull m~ bull-bullbull Thora 1o OllllOIItlJ no lfD for 1- ~ tile -ntol ~Uon v til tile JIICL for 1- (t fL shyat tile oouroa) Aloo diocuoo tho riolco attributocl to t111o -ioal qualitatively ancl hov they Y affect tile BI for blood ucl CIIS

122 ~Then 1o OllllOIItlJ no RfD for 1- ~ tile 1 conooatntioo v til tile JIICL tor 1- (I ILshyat tile _ Alao diocuoo tho riolco attributocl to tlllo

-ioa1 qualitativaly ancl hov thoy y affect tile BI for blood ancl Clll

123 1M taa UP ga Dlecuaa the total OUOU rlak tra orvanJoo ancl inorvaaioo -inoct Do tha- 1ft ana D

124 =tn~ ampnttObullr middotun-rttf ancl ltitationo in tile analyda Thio oootion obould inol- tho follovingl

or liaitationo in tho riot aoMo-t MUftlee of uncertelnty and tha da9na to mioh uncortaintiao aivbt nault 1ft an ovorshyor and underutlbullte of riat

(8 J1a9ion I quiclanca for further infolMtion P9 11 - 12)

125 rue 1-1 1at gplete raragrw let lutbullbullubull Concentrationbull of chroiua above background were detected in bullbullcUaentbull (not bullurtace water) at SVSD-14J concantratione of bull in oocliunto at SVSD-14 von below bacqlounclChroalUII and aercury were not detected in bullurtace vater at either location

12

126 1bull1 11 ~tete laryrpa 4 lptUII IU99Ut delatinG or revia ft9 the latter half of tbibull Hntence unlbullbullbull tba -lutlon of riak to tba blote la contlJ19ant upon differentiatlft9 the aourca of the contaalnantbull

127 r~crrnt ~~~~=tl antiUecl IDbull IIUtampJ bE llbulllbulllMl ICCMM u ws__loJMI eoatytpyta 1eett4 Ja De ottget ltUM M4 IIIIIIJIII IIOAA Tecbnlcel -ranclua - OIIA 52 Jlarcb 1990 OiiCUIII bullbullcUMnt contaalnatlon at the alte in relation to tba D-L and D-11 valuu oltod ln tba text of tbla report Alae appllcabla IPA - IntariJI SodlMJit crltaria ValuH for contuinanta found at tba alta abould be dlaoua-

fplt 7bull1 Mrpala fMp4l MMf4 II lprCapt llbpound1121 Datactod locetlona abould be labelled bullsr

129 ~~- bullmiddotbullt At tba Will olutar 117103lOt105tba -at - of arlo __ and 1- 1n 9r-atar OCCII1 at tba wll locetod oloaut to tba aurf- Alae Dl-1 a aballov wll dovfl9radlent of tba Valler llta aablblta bl9b concentratlona of tbua bulltala - -rod to adaoent wlla bull- dlaouaalon abould be -of - flndlnp

uo IW bull-n bullM IIFMJMbull A dlacual011 of -lMJit 9ft1n alia Mtala CICICNlHJIOI -ld be lnollldod 1n tbaJ

131 -middot ProVide eoM cllecuaaion of nnltaIMt bull-bullmiddot bullDRbull - 1n ftllla a-1 ban or ln - other aaotlon (u bull-lata)

132 JaalLJll lbCN approxlta vatar laval at tlbull of drlll1f19 Indlceta llllat 9ape ln data - alnca apllt -n 11119 vaa bulloonunuouabull Daflna bullorder of 9ftltuclabull dHtlOJI

143 a-tbull It voulcl be helpful to 1hov topocJraphy on tblbull up (pre-aand and 9ravel reavbulll)

144 IIJllL1l1 Indicate depth intbullrvbulllbull and litholoqy froa 10991119 data

145 rtgvu a-a tbulllmiddot a-bullbull Where pobullbulllble identify bulltnlbull unit

u

I I I r

Jil1 I---~-middot middot If I [ dfl

I

126 1bull1 11 ~tete laryrpa 4 lptUII IU99Ut delatinG or revia ft9 the latter half of tbibull Hntence unlbullbullbull tba -lutlon of riak to tba blote la contlJ19ant upon differentiatlft9 the aourca of the contaalnantbull

127 r~crrnt ~~~~=tl antiUecl IDbull IIUtampJ bE llbulllbulllMl ICCMM u ws__loJMI eoatytpyta 1eett4 Ja De ottget ltUM M4 IIIIIIJIII IIOAA Tecbnlcel -ranclua - OIIA 52 Jlarcb 1990 OiiCUIII bullbullcUMnt contaalnatlon at the alte in relation to tba D-L and D-11 valuu oltod ln tba text of tbla report Alae appllcabla IPA - IntariJI SodlMJit crltaria ValuH for contuinanta found at tba alta abould be dlaoua-

fplt 7bull1 Mrpala fMp4l MMf4 II lprCapt llbpound1121 Datactod locetlona abould be labelled bullsr

129 ~~- bullmiddotbullt At tba Will olutar 117103lOt105tba -at - of arlo __ and 1- 1n 9r-atar OCCII1 at tba wll locetod oloaut to tba aurf- Alae Dl-1 a aballov wll dovfl9radlent of tba Valler llta aablblta bl9b concentratlona of tbua bulltala - -rod to adaoent wlla bull- dlaouaalon abould be -of - flndlnp

uo IW bull-n bullM IIFMJMbull A dlacual011 of -lMJit 9ft1n alia Mtala CICICNlHJIOI -ld be lnollldod 1n tbaJ

131 -middot ProVide eoM cllecuaaion of nnltaIMt bull-bullmiddot bullDRbull - 1n ftllla a-1 ban or ln - other aaotlon (u bull-lata)

132 JaalLJll lbCN approxlta vatar laval at tlbull of drlll1f19 Indlceta llllat 9ape ln data - alnca apllt -n 11119 vaa bulloonunuouabull Daflna bullorder of 9ftltuclabull dHtlOJI

143 a-tbull It voulcl be helpful to 1hov topocJraphy on tblbull up (pre-aand and 9ravel reavbulll)

144 IIJllL1l1 Indicate depth intbullrvbulllbull and litholoqy froa 10991119 data

145 rtgvu a-a tbulllmiddot a-bullbull Where pobullbulllble identify bulltnlbull unit

u

I I I r

Jil1 I---~-middot middot If I [ dfl

I

146 rampnn _ Adcl three (3) new crobullbull aectiona bullbull allown (IH bullP attached to thoaa co-nto) lxploln vlly data polnta are ahovn aa aolicl ancl open circlea

147 ramppg _ Show bedrock elevationa rafuaal elevationbull or botta of hola elevationbull at data pointe uaed to conatructbullPmiddot Da1oto ouparfluo~~a lnforutlon

141 f _ Data are illetibla Correct probla Delete data po nta that vera not uaecl durinq drillift9

149 rtnn a-bull a-bullbull Show water level elevation data for locationbull vbare Maaured Delete reaainift9 data pointa llake aure data are readable

150 rampgg bullmiddot11 Show line of croaa aaction (Fi9UR 4middot2) W new oroaa MCtlon ao ahovn (loo bullP ottachod to tbooo_

111 _ bullmiddotbullbull- only- data noor llno of croaa -1011 Da1ota follovlnv vella froo oactlon1

ftbull24 DT-1

llltTbulllamp --middot 71-35 DT-4

Add well DIQIbullll hp1aln oyolbo1 for ooreon 1ntana1 shyoorooo lntana1 for 71bull24 or oxp1aln lilly lt lo not -middot

152 a llll1ot a bull ~ bull1--tarobull to bullu darbull

b llll1ot J bull ~ flrot oontanoo to reodl - -1119 rota darl119 tbo toot at Station llo 1 approolutad110ru1 oporotlnv condltlono that oxlotad prior to ootoiMr 117tbull

153 IIILIII a llet 2 bull Diacuaa excharNJe of water betVMn atrea and

-lfor 1n taroo of volno or 1ooooo to t11a otroaa (not bull -zv1119 9lOIIJMI votor) bull Provlda data ln tort and 0CIIIp1ete ~Uacuaaion aa to natural or aan aade otreoo -ltlono IncliJdo orlvlno1 data 1n opponcllll

Dlowoo Ualta of tldo1 lntluonco ln rohnoOII croolt Aro tidal effecta nifaat in tha aquifer

b liQUet 3 - Tranafer of water fro the at~ to tbe aquifer under the influence of pubullpiRCJ ahoulcl ba cliacuaaecl in terwa of bullincluced infiltrationbull (not recha19a) Provide quantitative aatiutea

14

lfote Add hydrOCJrapha ahowinq water lavale for the period of puapin9 and recovery (back9round well and other aalactad walla)

154 rage 1-1 legiop 111 11 laraqrbullpbullbull Identity tha bulltwo other potential aourcaabull

155 M 1-1 bulluUop 1111 suaaary and text ditcubullaion in section 3436 ara weak Diacutaiona ara too 9anaraliled and inautticiant data are praaented to aupport concluaiona

156 rag 1-1 tr4 laragraplu The diacuaaion of Chaatarton llhould include tny raedial actiona taken or planned to data

157 bullbulltlpa 101 Hare and in other aactiona tha ralationahlp between dravdowna obMrved in tho area of Jobnaoll - and tho contribution of contuinanta in that area to ltatian bullo 1 ia unolear In oertain eraaa tbroupclut tbe n it ~~t~~f~ttVlt~~1 in the paat baa occurred other areaa of tbe npolt eteto

~~Tt =t~~ntlfil ==tf tbe bull- of capture

151 IMt bull-bullmiddot wbull IHM It 1bull atated MVaral tMwl tbat the contuinotion on tba Clleoterton pr-rty ie not

=t0~~~~Imiddot~middot~irir bullY be

151 IMt tbullle 1pound4 ltr lltar Lilli ftia Mould IMd bull111 to tts bull

160 middot-middotmiddot in Ar Da 7th line bull Well lltrbull10 h b Tile diion ia confuoi91 it llbould be - olrer

vhen tbe text io nferri9 to tba Clleeteltan p~rty varna tbe Groveland Walla Site

c Tile diacuuion referbull to a plUM identified in paot invutiationo of oeveral chlorinated voea at tba Cbaatarton property but recent aupliniJ doalftt rMlly ahow any indication of that plUM SOM diacuaaioa ohould be 9iven to thio

161 rya bull-bull 1 abullbull hruraplu Are the diacuuiona in tllia paragraph riC)ardiing inorganic contabullination concentrationbull in groundwater all baaed on unfiltered -plea If ao it ahould be Mete clear and if not the filtered raaulta Mould alao bel diacuaaed hara

15

II t

~~

I f I shy 162 bull fntbulltt tbullbullYnti~ ~ to

Detectedbull

U3 ~were there any identifiable plWMbull of inorvanio contuinantbull in Area I (dibullcubullbullbulld in thlbull aaction) or throu9hout the eite

164 0 t-17 a 2n4 Sentence - Differentiate between contuinatlon

found in the bullctp bedrockbull vall (i e 101) with the contaaination founci at deeper bedrock well 107

b 11 there an explanation tor why contaalnant levall in NUS-5 havo dropped otoadillf and o19ftlfioantlr ovor tho laat 2-3 yearbull Could it be that there 1bull a deep hydraulic connection with the extraction 1y1t

165 bullmiddotbull could the snmplnt of Station bullo 2

=~~~ttUa~~f~l~-rerl~ofllaftrll1ll contaaination

166 Mlo tbulll 11199oot addin9 a col111111 Uoti9 tho looati- dotoctlono vboro found

1C7 Mae tbulll IWIU tt bullrt be tint~ -bull ototo that loor lOftl --tor ~tloe 11 bull1trat19 fraa tho landfill toorard J- croot ftoro no no lndioation of landfill oontuination found - of tho crook (1naludi9 ltotlon wo 2) ao ototod fllrthor bull in tho - paravrapb

111 IMt bull-bull tbulll lpooloo Uoto obould llo 9ivon for torrootdal vortobratM ootually - on or - tho alto ror oquat1o vortobratoo and lnvortobntM pl shyrofor to tho opooloo Uoto ln tho atto- llan ~ Japld Bloao-t Protocol u Clto only tho Uot of -1bull fraa tho draft report

If you bave any queatioM concerninq theae ~ta plMM contbullct M (573-5734) at your convenience

sincerely

~navor 16

1. barcode 558968
2. barcodetext SDMS Doc ID 558968

lfote Add hydrOCJrapha ahowinq water lavale for the period of puapin9 and recovery (back9round well and other aalactad walla)

154 rage 1-1 legiop 111 11 laraqrbullpbullbull Identity tha bulltwo other potential aourcaabull

155 M 1-1 bulluUop 1111 suaaary and text ditcubullaion in section 3436 ara weak Diacutaiona ara too 9anaraliled and inautticiant data are praaented to aupport concluaiona

156 rag 1-1 tr4 laragraplu The diacuaaion of Chaatarton llhould include tny raedial actiona taken or planned to data

157 bullbulltlpa 101 Hare and in other aactiona tha ralationahlp between dravdowna obMrved in tho area of Jobnaoll - and tho contribution of contuinanta in that area to ltatian bullo 1 ia unolear In oertain eraaa tbroupclut tbe n it ~~t~~f~ttVlt~~1 in the paat baa occurred other areaa of tbe npolt eteto

~~Tt =t~~ntlfil ==tf tbe bull- of capture

151 IMt bull-bullmiddot wbull IHM It 1bull atated MVaral tMwl tbat the contuinotion on tba Clleoterton pr-rty ie not

=t0~~~~Imiddot~middot~irir bullY be

151 IMt tbullle 1pound4 ltr lltar Lilli ftia Mould IMd bull111 to tts bull

160 middot-middotmiddot in Ar Da 7th line bull Well lltrbull10 h b Tile diion ia confuoi91 it llbould be - olrer

vhen tbe text io nferri9 to tba Clleeteltan p~rty varna tbe Groveland Walla Site

c Tile diacuuion referbull to a plUM identified in paot invutiationo of oeveral chlorinated voea at tba Cbaatarton property but recent aupliniJ doalftt rMlly ahow any indication of that plUM SOM diacuaaioa ohould be 9iven to thio

161 rya bull-bull 1 abullbull hruraplu Are the diacuuiona in tllia paragraph riC)ardiing inorganic contabullination concentrationbull in groundwater all baaed on unfiltered -plea If ao it ahould be Mete clear and if not the filtered raaulta Mould alao bel diacuaaed hara

15

II t

~~

I f I shy 162 bull fntbulltt tbullbullYnti~ ~ to

Detectedbull

U3 ~were there any identifiable plWMbull of inorvanio contuinantbull in Area I (dibullcubullbullbulld in thlbull aaction) or throu9hout the eite

164 0 t-17 a 2n4 Sentence - Differentiate between contuinatlon

found in the bullctp bedrockbull vall (i e 101) with the contaaination founci at deeper bedrock well 107

b 11 there an explanation tor why contaalnant levall in NUS-5 havo dropped otoadillf and o19ftlfioantlr ovor tho laat 2-3 yearbull Could it be that there 1bull a deep hydraulic connection with the extraction 1y1t

165 bullmiddotbull could the snmplnt of Station bullo 2

=~~~ttUa~~f~l~-rerl~ofllaftrll1ll contaaination

166 Mlo tbulll 11199oot addin9 a col111111 Uoti9 tho looati- dotoctlono vboro found

1C7 Mae tbulll IWIU tt bullrt be tint~ -bull ototo that loor lOftl --tor ~tloe 11 bull1trat19 fraa tho landfill toorard J- croot ftoro no no lndioation of landfill oontuination found - of tho crook (1naludi9 ltotlon wo 2) ao ototod fllrthor bull in tho - paravrapb

111 IMt bull-bull tbulll lpooloo Uoto obould llo 9ivon for torrootdal vortobratM ootually - on or - tho alto ror oquat1o vortobratoo and lnvortobntM pl shyrofor to tho opooloo Uoto ln tho atto- llan ~ Japld Bloao-t Protocol u Clto only tho Uot of -1bull fraa tho draft report

If you bave any queatioM concerninq theae ~ta plMM contbullct M (573-5734) at your convenience

sincerely

~navor 16

1. barcode 558968
2. barcodetext SDMS Doc ID 558968

I f I shy 162 bull fntbulltt tbullbullYnti~ ~ to

Detectedbull

U3 ~were there any identifiable plWMbull of inorvanio contuinantbull in Area I (dibullcubullbullbulld in thlbull aaction) or throu9hout the eite

164 0 t-17 a 2n4 Sentence - Differentiate between contuinatlon

found in the bullctp bedrockbull vall (i e 101) with the contaaination founci at deeper bedrock well 107

b 11 there an explanation tor why contaalnant levall in NUS-5 havo dropped otoadillf and o19ftlfioantlr ovor tho laat 2-3 yearbull Could it be that there 1bull a deep hydraulic connection with the extraction 1y1t

165 bullmiddotbull could the snmplnt of Station bullo 2

=~~~ttUa~~f~l~-rerl~ofllaftrll1ll contaaination

166 Mlo tbulll 11199oot addin9 a col111111 Uoti9 tho looati- dotoctlono vboro found

1C7 Mae tbulll IWIU tt bullrt be tint~ -bull ototo that loor lOftl --tor ~tloe 11 bull1trat19 fraa tho landfill toorard J- croot ftoro no no lndioation of landfill oontuination found - of tho crook (1naludi9 ltotlon wo 2) ao ototod fllrthor bull in tho - paravrapb

111 IMt bull-bull tbulll lpooloo Uoto obould llo 9ivon for torrootdal vortobratM ootually - on or - tho alto ror oquat1o vortobratoo and lnvortobntM pl shyrofor to tho opooloo Uoto ln tho atto- llan ~ Japld Bloao-t Protocol u Clto only tho Uot of -1bull fraa tho draft report

If you bave any queatioM concerninq theae ~ta plMM contbullct M (573-5734) at your convenience

sincerely

~navor 16

1. barcode 558968
2. barcodetext SDMS Doc ID 558968