Document zdMMr5NrYjvVEneO6bpgwwXG3
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PID
E. 1. ou Pon of Niemmours & Company
WILMINGTON, DELAWARE 19898
cer aLBdYR pKbaaermae C-C 3awse3ieCHL FTael rile
A 22-1578
PERsOML AND ComFipETIAL
vay 20, 1381
0: DR. C. WALKER - BPD, Chestnut Run
FROM: 5. S. STAFFORD SS
(ob No. 811A-W6A1L0I;SISDEOAFL NLa0seG.DB1S-I1P7L6E5S-17T7O7R5 PNEoRtFLeUbOoRoOkOCNoTsA.NONET2E2514,826238 LcuibemnittizteidcakttsihoennreqrhuaeevestiebvdeaenndnainynaoultryhzeeLdseccttfaeocrrhepodferf4t/la2ub3ls/er8.o1octtaoncL.ateJ. (PCag)p.a, Rtehesul1t5sblanodcdsasaapsipeles sErpeectttotmcparfioAsrsonCnipoutei(dtLhabhatVoreteca,hlodocrhegNoumanbnieaerlyfsEle5us-o5r6vi7en)reebaudntoanleycseemusup.litnsgPrhaeavcgeiassbieocenhnromrae+tpoogrLrtOeaKdphriaec8lastpeiotvnheod SLoOeAaeStSrIEvatMSeeeEvni.,atioWTnhiethovTeorwdemreovseLteatioitfon tfhoLerimucisonmcoefeintvtarta0i.to0in0o4n 1pr6ap0zm.g0ew0,h7icshpompemcwohnFatb(e0l.0da1issstpapitmn. gutpiheeerhlelduoreree Teamtnc background but not wel) quantitated. equesetions FcleepsasreaiincgonntetahcsetaSmneralyT(e1c7Fs2.-44r4Ce0a)nreoeexl.L.su3e.scPiaopnas o(n77b2l-o2o7d45)saAsfplyionug hcaavnebesny
AStanachacat Key worPFdeosrx:ttlluuoorrooooccttaanncaiacteAcid
aSood Analysis
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000081
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CONCENTRATION OPFERFLUGROOCTANOATE INBLOOD(3),
Sample RAL No. S1-1763 6h sires sures slurs sures suey a0 sm sz sum Blue ss B16 BI-1777
Date Sampled 4/2/81 W281 ase wei ere/m aus a/ufe am eam Ae/eL wale 4/81 ae w/fel 4/24/81
SNe. Mame 195-340-9680 221-26-udsz 21-22-3007 137-2376 222-159 20218-9533 22-30-6025 22-3ei6n ameseun 190-22-3702 22-l-1siz 218-32-8049 24-22-6295 23670-5332 91-58-2410
GC hmlysts Date Analyzed
s/s/s1 5/6/61 sto/m sie/en stefan state sire sae snr snr py s/a/s1 sire snore s/10/81
[CuagF/lg $s100
nd nd. nd. ne. na <.o07 n.d. na. nd. 0.009 <.007 on 0.03 <.o07 007
(a) cAnialaysntsBlasoodd,escCraisbeCdhroinmaLtaobgraMepthhiocdMeEtSh-o5d6"7, (S".DeStteartaftooradt,ion4/o3f/8P1e)r,fluuosrionogcttahneolc Packed columm CC analysis with perfluoromniocianoic acid as calibration standard.
(5) CAlotnhcoeungthrattihoensanaarleysigsiveins isnpecpipfmic[alluloyrinfeorfoprerfcloumopraoroicsotnanowaitteh t(haecidresoufltssaltosf), EtoottailnatoersganuinccerFtlauionrtiyne1san+aly1s0e%s.rela(tpipvmeFs=tan0d.a6r8d8 dxevpipamtipoenr.(luTohteoocltoavnecriclimaictid) cYoornceqnutarnattiitoantsionin istha0t.00T7ankyegP/cga.nnotThebe dweetlelctiqounantliitmiattedfa a~nd 0.a0r0e4 rVegpFo/rgt,ed buats h0i0c0h7c.annoNtonebeddeitsetcitendgui(snhied.d) Trisonrreepaogrecnetd bfaocrkgsrsoeupnlde.s with (cg) 5* 0.000 pp,
REDACTED
000082
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E. 1. bu Pont of Nevouns & Company
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[FaRlR pias ie AR224-1579
`ERAscToTDmnTILAL
vay 20, 1981
TO OR. 3. W. WEDGES - PPD, Circleville, Ohio
ross. 5. sro 5 Sffrnd
(5h to. 510L-S6A5L3I;SISPRAOLF SBaLsos0DSS1A-1M5P3L6E-S19F5O0R;PNEoRtFLeIbOaRsOkOCNTeAtIONE3T3Es14, 526238
sTuibemnttcicfaiscatftiehoennzahaqaruveeesgeSideveenninsiynnoaustryhezLeedssitfieoarrcheopdferf3fai/b1ui/oo8r.1ecscioanL.eat3e, P(a6ppa),. cRheesi1s6tsbloasndd ssaemcppllees sEprecicfoimcparfifosaronnCoptue(idLtabchtNeoceteca,hlodocrhNpeuanmaibncearlyfsEle5u-so5r6vi7en)reebsudeteolnyermeesunoe:livnegPahraevcgeiassibeocenhnr.o1ssrsebtpoogr1rs0ae8dphriaectampreiotnmheod CSaecoatenasintaoriscvadlSuoEevBsi),a,ciWoTinoethovleaorvdemretoeavcitiotofn cfhoJerLuicqkounecmofeinivtcraa0rt.ii0oo0nn% 1sFpirns0g1e0w,6h7icshopnpemcuannFdtb(e0-1e0e11355tpipantsgupttheesrhleuderoComm the Teatent becharound bus not well quantitated: qruesteions FrieegaasredincgohnatttahecestammSeilEg(i7eT2s-.44p4eC0ro)enicveoaartl.L.du3e.itPiaopnas o(n17b2i-o27e4d5)sempiyionug hcaovnebeany
ASearachaene --FFeerritliuuaorrooonccttamnoetneteAcid
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000083 E10E7x1e5o80506022
TLE 1 CONCENTRATION OF PERFLUGROOCTANGATS IN5LOOD(a)
Sele PBRA1L 3No. DatesSsalmpled Eu.eRs.No. Kame s-193 s/s sis sis sam mo ss sum om sleisio sam sess Bll s/s ees si-lsz sss mn sl-143 sus oars sli sum ams Bis suse ves sicios sss uns sll s/s seis sles spe 73s sass ssm 50s, 81-1950 s/s seus Blas sss mse
comayss DatesAanarleyzed
si2/81 sna sissy snael shiafal sare s/12/81 size size: sam sn3/a1 3/13/81 13/80 s/3/81 s/i3/e1
[C0.va 0g27l/g,B1 na 0.017 0.015 nd. nd 0.030 0.027 0.025 na 0.017 0.026 0.028 0.008 0.053 0.017
(8) pAAacnicadkleydoilnscoBllaousomdnd,eGsCcGraaisbneaCdlhyrsioinmsaLtwaoibgtrhaMpehtpihecordfMleuEtSoh-ro5od6-"7n,io(cS"t.DaenStoteiarctmfioanrcadit,diona4s/3of/c8a1lp)ie,brrfalmtueioeernsoocohtrnaennodtaerd () EcAsooltntciachlneoauntgtoehrrdagtacnuihineoccnesarfnclaaaurltoeynrstitgynsievef1snasn+aislnpye1spc0e7ptsmf.riecflalalu(tlopiyrpvimenfeoFrs=tfaoprn0ed.ra6cfr8ol8mupoxarroipospcomtnanpwcoiarttfheluot(rhaeecciedLtesoounrsltisssalwtcspi)i,)
cfo0onr,c0eq0nu7ta.rnattiMicooanntesiond{ent{estchta0et.d00a7(nng.Uedg.F)/cga.nisnotTrheepboerdiweeetdlelctfioqrounendstaLimidtpmealivtetiesadtiwinoiantvn.hd0a.[r0cTe0gh]0ef5peownu0esr.s0ir0a6dsoioopmerysar which cannot be distinguished fron reagent backpromms.
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Ex2000023
REDACTED* EID713837
000084