OUTLINE OF C-8 BLOOD SAMPLING PROGR 40 22 (-/56T employees'Theblosoadmphlaisngspervoergarlamputropodseetse.rmiTnehesleevealrse in order of priority.

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TAFT, STETTINIUS & HOLLISTER LLP wi Comaron KENTUCrtKrYo re ot-- 425 WALNUT STREET, SUITE 1800 CINCINNATI, OHIO 45202-3957 Fax1v13i300112082008 ps cue ow wre cS oaus n occ coEl0uE5Smeann Roser A.

AR226-1734 Toxicological Summary PFOS Dietary Acute Mallard Study Test Substance: Perfluorooctanesulfonate (PFOS) Structure: 1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-, potassium salt, CAS# 2795-39-3 Remarks: The test substance is a white powder (3M lot #217).

AR226-1748 Lab0ratoyRep-t-Revision1 Analytical Reportof Data for PFOS Dietary LC50 Studiyn Northern Bobwhite (Sera and Liver) Laboratory Report No.FACT-TOX-129 (U2723) Testing Laboratory ~~~ ~ 3M Environmental Technology& Safety Services 3M Environmental Laboratory FluorineAnalybcal Chemistry Team (FACT) 2-3E-09 935 Bush Avenue, St.

: SSeher LsararMyVici.keePbDreitra,MmD, MPH MinDepartment AM vem 73S M05Co0meP M5r,2NB2S.5u3, 33k2C220t0 0o28g02 57T35S8 ORMe DAoTcTuNm:enSt Preocecs(scit)ngCCoieonrtdoeinra(nt7o4r07) OUfSfiEcnevoifroPonlmleunttiaonl,PPrortecetivoneAnagnetdnTcioyxoicns 401 MStreeStW, `Washington,D.C. 20460 FRel:uoTrSocChAem8i(cea)lsSu-pDpolcekmeenttNaulmNboetircse8fEoHrQS-u1l1fo8n0a-t3e7-3b;asSeEdaHnQ-d1C1a8r0b-o3x7yl4i;c8-bEaHsQc-d03810394; SEHQ-0598-373 Dear Docket Coordinator: r`eWliatthetdhtiosplertetveri,o3uMsTisSpCrAoSveicdtiinogfni8n(al)renpootirftiscaatnidoonst.hAerlsluopfptlheemeentnalcinlfiootrmesamtseiaordne: ahlorweeavdeyri,ntEhaPtAp'lsacpionsgstehsessioeintaenmdsaivnaitlheabl(eei)ndToSckCeAtmDaoycakleltoAwRf-o2r2m6o.rWeceobnevleineivee,nt accessto informationdirectlyrelatedtoprevious(c)notificationsby 3M.

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ANALYTICAL METHOD VALIDATION FOR THE DETERMINATION OF PERFLUOROOCTANESULFONATE, POTASSIUM SALT (PFOS) IN ARTIFICIAL SOIL WILDLIFE INTERNATIONAL, LTD.

ldlife International, Ltd.

`Toxicological Summary PFOS Dietary Chronic Pilot Reproductive Study: Mallard Test Substance: Perfluorooctanesulf(oPnFaOtSe) Structure: p1o-tOacstsanieusmuslaflot,niCcAaSci#d,2719,51-23253..3344,55,6,6,7,8,88-hepladecafluoroTest Remarks: sTthoereedstunsduebrstaamnbcieenistacwohniditteiopnos,wdaenrdp(u3riMtyLowta#s2d1e7t)e.rTmhineesdam{p0bleew8a6s.9% by LC/MS, "H-NMR,andclemental analysis techniques.

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AR226-2063 ^^ PERS JOB .

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AR226-2211 Ron J Buchanan 11/06/2001 07:07 AM To: cc: Subject Roger JZipfel/AE/DuPont@DuPont Robert F PinchoM3EV/AE/DuPont@DuPont, John A WBkens/AE/DuPont@DuPort Re: Mulit Media Consent Order APFO data requirements @|| Thanks for the info Roger, could you send an excel spreadsheet showing the isotherm data and data plots you have??