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oT, STETTINIUS & HOLLISTER Lv.
1800 FIRSTAR TOWER
425 WALNUT STREET CINCINNATI, OHIO 45202-3957
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226-1170
November 1, 2001
TELECOPY AND REGULAR U.S. MAIL
WAersmtanVdirogiBneinainDciavsias.ioEnsoqf Environmental Protection
Office OfLegal Services
1356 Hansford Street Charleston, WV 25301
Dee Ann Staats WePsrtotVeicrtgiionnia Department of Environmental 1356 Hansford Street
Charleston, WV 25301
Janet E. Sharkey, Esq. U.S. Environmental Protection Agency Region III Office Of Enforcement, Compliance and
16E5n0viArrocnhmeStnrteeJtustice (Mail Code 3EC00)
Philadelphia, PA 19103-2029
Dr. John Wheeler (E-29)
ATSDR
A1t6l0a0ntCal,iGftAon 3R0o3a3d3, N.E.
Sam Rottenburg (3WC11)
U.S. Environmental Protection Agency 1650 Arch Street
Philadelphia, PA 19103-2029
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Re: Leach, et al. v. EL duPont de Nemours and Company et al. (Circuit Court of Kanawha Cty, WV, Civil Action No. 01-C-2518) Public Health Concern Involving Drinking Waterin Wood County, West Virginia
Ladies and Gentlemen:
Our law firm is currently working with two other law firms in West Virginia in the representation of numerous individuals who have brought a class action lawsuit against E.I. duPont de Nemours and Company ("DuPont") and the Lubeck Public Service District of Wood
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000004
November 1, 2001 Page 2
s`Cuopupnltiye,s wWietshthVaizragridnoiaus("maLtPeSriDa"l)s,ininccolnundeicntgioanmmwiotnhituhemcpoenrtfalmuionraootcitoannoofatheu(maa/kn/adrAiPnFkOin/gFwCa-ter c1o43p)y,oofrtihgeincatoimnpglafirnotmiDsuaPtotancth'esd.W)asAhsiningdtiocnatWeodriknsthienCWoompoldaiCnotu,ntoyu,r cWleisetntsViarrgeincioan.ce(rAnnedextthraat pthreerseenisce2ocfurerxecnets,siimvmeilneevneltsaonf,dasmubosntagntoitahlerthmraetaetritaoltsh,eiArPhFeaOltihnblaosceald durpionnkitnhgewpaatsetrasnudppcluirers.ent t`hWienghsa,vaepparsokperdiatthee mCierdciuciatlCmoounrittionriKnagntaowthhaorCoouugnhtlyy,aWsseessts,Veivragliunaitaetaonodrdqeura,natimfoyntghiostthherreat to human health
represenIttahtaivserseocefnDtulyPocnotmeantdo/oorurthaettLePntSioDn ttohaetvyalouuarteagtehnecineatsumreayanbdeewxoternktionfgthwiethcurrent threat p1r0ohcuesmsaonfhteraylitnhgatroisaignrgeferwoimththDeuAPoPnFtOancdo/notramtihneatLiPoSn,Daonnd tthheatseyloeucrtiaognenocfaies"smaafey" bleevienl tfhoer APFO in human drinking water supplies.
studies cAosndinudcitceadtetdoidnattehewiatthtarcheesdpseuctmtomAarPyFcOhaursti,negxhsatuasntdiavred,UdeStEaiPlAedrainsaklaysssiseosfsmtehnethealth
dmreitnhkoidnoglwoagtyerancdanDubPeosnctie'nstiofiwcnaldlaytoarcroenafliisrtmictahllayt jnuost"iafciecdepattaabnley"lleevveellaonfyAhPiFghOeritnhhanum0a.2nparts
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the 3M Company drinking water
in
previous,
similar
attempts
to
determine
a
"safe"
level
for
APFO
and
PFOS
in
exceedeAds0.y2ouppmbositn-ltihkeeLlyPSarDe dalrrienakdiyngawwaartee,r AsuPpFplOy lseivnecles ahtalveeascton1s9i8s4t,enwtiltyhaDnudPcoonntt'isnuoowunsllyab AcoPnFfiOrmiinnhguAmPaFnOdrlienvkeilnsgawsahtiegrhsauspp3l.i9esppibn Winotohde eCaorulnyty19,90Wse.stGViivregnintihae actonltevienlusinegxcpereedsienngce of a0d-2drpepsbs,twhies iremqmuiensetntthahteyalotuhrtahgreeantc.ieIsnctohnatfirremgaarsdspoloenasaeslpeotsussibklneowwhaitfanstyeopsfayreoubreianggentcaikeesnatroe Scoontshiadtewriengcatnhedissecluecstsitohnoe fbaasnisyuApPoFnOwhdircihnkyiongu wbaeltieervsetaannydasrudcohraglotaelrnaatniyvehinguhmebretrhacnan0.b2eppb Jtuhsattitfhieedreunisdneor etxhirsetaitntgodhautamaanndhreiaslkthguatidaannyces,uachndhitghheeerxtleevnetl.toPwlheiacseh aylosuo cleatnuassksunroewouifrycoliuents have any questions on any aspectofanyofthe information set forth in the attached chart.
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November 1,2001
Page3
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RAB/mdm Attachments
C= RL.arErdyiAs.onWiHniltle,r,EsEq.sq. Gerald J. Rapien, Esq.
obert A%BTort
CONTAIN wrt cr
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Drinking Water Health Advisory detrmintion for Ammonia Pefluoroocinost (APF)
The calculations blow are based on a 26-week capsule tonicity study with APFO in Cynomolgus TMhoenrkeewyesr(eU2n2auodrigtaendisDrmasftinR4epdoorste bgyroCuopvsa(nicneclLuadbisn,ga10c/o7n/9t9o)lcgornoduupctreedcefiovrinDgugPeolnattianncda3pMe.s).
arTnhdee l1iosftrbfohemeltohhiwegdhhe-itgdahoilsdseotsmheoengnrukomeubypesrwoweferseetruseadmcyroivafenidicemfdalposreinmhaeenacrShelygyrodudupeo.1s0Nohttegsthmatar| vmoonnkfseoy fmrroam t,he low dose ecduxarpmaeitreiidoennrcooeudfhgbehyd1thetyhmeoennkdeoyftthhaet wsaudss)s.acriSfeivceendtfereonm(1th7i)s.mgornokuepy(ssofoonallwye2rheighm-diosge mes so monkeys were
[o6 w ] 2 GowImg/kgdsy) sod omg | 6 |
Sigh 2030 mghgds) | 6 |
RCIaDlculation
RD = NOAEL/UF
Los stogigT iy) [ o 1| www r T|owones]
LoObsAerEveLd.comAmlesn,t:sAtt baontihma3lawnads1n0emag/dkeg/kdha(y,vttecshtimnagt,erpiaarlsreylsastehd ordganmweiaght cohanges were ny dose
level and was sacrificed prematurely. LOAEL.
In lightofthis observation, the 3 mg/kg/day is considered the
UENote: UF determined as 10 (interhuman) x 10 (primate database) x MF. MF is 10 (because of limited dataissues).
to
human) x
10. (chronicity)
x
10 (incomplete
DWEL Caleulations
DWEL = RD * 70kg/2L/day
Moowigsy [|
swan |momwam |owes |
LifDe WHt ACai lcum late ion DWHA = DWEL * RSC (i.e., Relative Source Contribution/EPA default = 0.2)
Loser) [o | we| Lows e n|
ona Lr
owmeen Fi 0000)7