BACK TO MAIN ACUTE TOXICITY TO FISH (FATHEAD MINNOW) TEST SUBSTANCE Identity: Potassium Decafluoro(pentafluoroethyl)cyclohexanesulfonate may also be referred to as FC-98.

BACK TO MAIN MICROBICS' MICROTOX TOXICITY TEST TEST SUBSTANCE Identity: Perfluorooctanoic acid, tetrabutylammonium salt; may also be referred to as PFOA tetrabutylammonium salt, tetrabutylammonium perfluorooctanoate, N2803-2, or as a major component of L -13492.

- i o 1 1 1 1 1.141 1 1 t i TECHNICAL R EPORT !

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Report Title Evaluationofthe Northwest BioanalyticalMethod Validation Reports for PFOSandRinelMaeteetdiAnngatlhyeteRseiqnuiHruemmeanntSseorfutmheorPlasma EDABioanalyticalMethod Validation QAI Report No. 405-503 _ Data Requirement Full Validation of Bioanalytical Method Author - Nancy Benson Philippe Ourisson QUALITY ASSOCIATES, INC. 9017 Red Branch Road, Suits 102 Columbia, MD 21045 ( Sponsor 3M Environmental Laboratories 935 Bush Avenue Bldg 2-36-08 St Paul, MN 55106 Report Date December 31, 2001 Report Number QAI 405-503 Number of Pages 2 .

SDRTPITST-B6295.8, T-6316.4, T68682, T20711, T7132. 3M MEDICAL DEPARTMENT, CORPORATE TOXICOLOGY T-6295),`TNi-tleet:hCyolmppearrfalutoirvoeocMtoalneecsuullafronBaimoildogoyeotfhaPneorlfl(uNo-rEo(ocFtOaSnEe,suTl-f6o3n1a6t)e,(NP-FEOtSh,yl acepteartfel(uoFrOoSoAcAta,nTe-s7u0l7f1o)n,amaindde/o(rNP-eErFfOluSoAr,coTc-t6a8n6e8s)u,lPfeornfalmuiodreo(oFctOaSnAe,suTl-f7o1n3a2m)iodfo in Rats and Guinea Pigs following Oral dosing.

3M General Offices Ps ocEanr e s BEHQ_ OT04. 15607 ARR ~ 804 ertified Mail B DEoPcAumEaesntt-PRroocoesmsi6n4g2C8eAntttenr: Section 8(c) OUfSfiEcPeAof Pollution Prevention and Toxics `1W2a0s0hiPnegntnosnylDvCani2a04A6v0e-n0u0e01NW RE: Ei TSCA 8(E) SUB4STANTIAL RISK NOTICE ON: any = 2} sS SANITIZED HA EI as Dear Sirs: `3cMondhuacsterdecweiitvhedapprreoltiemcitniaverymarteesrulitasl.foTrhaefcoourm-phoosuirtiaocnutfeorinthhailsatteisotnssutbusdtyanicneraists attached.

Report E01-1245 PFOS: A Reproduction Study with the Nothern Bobwhite ARZ6-185:6 ANALYTSICtAuL PdHyASETiREtPlOeRT FOR PFOS: A REPRODUCTION STUDY WH THE NORTHERN BOBWHITE FIDFaRAtSaubdRiveisqiouniE,rSeecmtieonn7t1-4 (OECD Guideline 206 LisAa Au. tStheovernson Analytical PJahnuaarsy e31,I2n0i02tiation Date Analytical Phase Completion Date April 18, 2003 PerfoarmEnviirnongmenLtsaLabboortroay tory B5u05nugn2A3v6e.0n0e SL Pack MN 55105 3M EnPvirroonjmeenctatl LIabdoeranttoriyfSitcuad#tyiEo0n1-1245 `Wildife Intemational Ltd: 454-108 Total Number of Pages 26 NEnoviparrotnmoefnhtiasl rLeapboorrtatsorhyo.ulbd reproduced, except in ful, without witen approval ofthe 3M 3M Environmental Laboratory Page 1 6n0uit Report E01-1245 open ons PFOS: A Reproduction Study with the Nothern Bobwhite PFS: A rechcton Studywin na Nota Baile ~ GLP COS MtPLIeANeCm E nSTATEa MENT ss------ Study Tie: ABnoablwyhtiictael Phase Report for PFOS: A Reproduction Study wit The Northern Study Identification Number: EO1-1245 GTroiosdanLaalbyotricaatlorpyhaPsraectwiacse (coGnLdPu)cStteadnidnacrodmspwliitahntcheeweixlcheTpoixoincsSuibssetdanbecleosw:Control Act (TSCA) Exceptions to GLP compliance: + aAsuthoemaotreigdindaaltaracwoldacttai.on systems are ot validated.

AR226-1989 -;-, . ..i/W^'.r - ^.

AR226-2225 Robert F Pinchot 12/07/2001 02:47 PM To: cc: Subject: Roger J 2ipfel/AE/DuPont@DuPont Debbie J Mulrooney/AE/DuPont@DuPont, Chris E Shoop/AE/DuPont@DuPont Re: Consent Order - Stack Parameters and Emissions Q Roger, Do these data make sense to you?

AR226-2283 [.....l.....

AR226-2314 / Charles J Zarzecki 03/17/2003 11:09 AM To: cc: Subject Catherine A Barton/AE/DuPont AERMOD Met Data Hope you're having a wonderful conference call.

AR226-2329 ""-.f / IreneALegiec___________04/TO/2003 09:58 AM To: cc: Subject: Mark D Richmond/AE/DuPorrt@DuPont, Carl E Camp/AE/DuPontQDuPont.

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\ AR226-2385 PERSONAL AMD COflFroEblTIAL CC!