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ACHARLESRIVER COMPANY PATHOLOGY PEER REVIEW REPORT 26-WEEK CAPSULE TOXICI(TAYPFSOT)UIDNYCWYINTOHMAOMLMGOUNSIUMMONPKEERYFSLUOROOCTANOATE `Covance Study Number 6329-231 OBJECTIVE oaAbnjmdeicctthrieovsetcwooopfiactnhipemeaerlresvritehevawitewhwaaodsfattnhoeucnaoslncfthiiesmdsuuaelsneddfrsfoaucmrrtiahlfleircheie(gl1hu0-c5idd7oa2st1ee aainnfidmpao1ls0ss5,i7bsl2ee4,l)ewctatheosd spcaeotrntferodorlmceadan.uismoaTlhsoe,f moriboufnandimialys 105721 and 10724.

AR226-2074 Starting 1^%^^^^^IS^^ Detectorifc*.**^***;^**^**!

RECYCLED C'yi AR226-2661 RESEARCH AR226-2661 Analytical Report Air Sampling Fluorochemical Report DuPont Washington Works-Air Sampling Program Round 5 Exygen Research Report No.

RECYCLED ^'"^ AR226-2684 05 AR226-2684 MK The miracles of science Study Title ADSORPTION-DESORPTION SCREENING STUDIES OF AMMONIUM PERFLUOROOCTANOATE Author William R.

AR226-2712 34 AR226-2712 Environmental Impact of the Degradation of Materials Degradation of all materials, whether naturally occurring or man-made, necessarily produces chemicals as a result of the process.

Material Tested Copies to: E.

AR226-2899 FOR DO FONT USE ONLY 4 E.

AR 336 -- 3237 | i 419 | | 09208aD5e1y6GGevaSavgueebeSStuodynciiTnnRRoattiviitthhOOnne:GGeeneerioonnRReepprreotdioonn vBaruaiionnss `TRADE SECRET Study Title H-24516: Subchronic Toxicity 90-Day Gavage Study in Rats `with One-Generation Reproduction Evaluations Revision No. 1 Volume 4 of 5 AR2ReRvis6ed_Pag3e 237 DDuurpoon:s5t3s6 TEST GUIDELINES: U.S.

AR226-3342 Bill Berti DuPont Central Research & Development Wilmington, Delaware USA Ths mif'Qcies a/seiencs" BiNing W a n g aDaryl Cobranchi aBarbara Larsen aBogden Szostek BMary Kaiser John Gannon Bob Buck gLisa Sulecki Pat Folsom aMark Starr aChien-Ping Kao gChristopher Bowers aVIadimir Capka OutSSne Background a Intermediates and Products Overview of E-fate studies Physical-Chemical Properties a Water solubility and Vapor Pressure ^ 6-2TBI, 8-2TBI, 6-2TBA, 8-2TBA B Measured vs.

BattelleFi Georgia C Exposure I I BattelleFieldSampling ProceduresReview Columbus Georgia City-Survey regarding EmpiricalHuman Exposure Assessment Multi-CityStudy To Susan Beach - ProjectLead 3M9 ET & SS PO Box33331 Building 2-3)Z-09 St.Paul,MN 55133-3331 651-778-7452 - August 3,1999 Prepared by JessEldridge- Reviewer 3M9 ET & SS PO Box 33331 Building2-3E-09 St.Paul,MN 55133-3331 651-778-5233 Review Objective The objectiveofthe on-sitereviewwas to observethe samplingand handlingtechniquesused by Battelle duringtheColumbus, Georgia citysurveyforappropriatenesasnd completenesswithinthecontextof the Multi-CityHuman Exposure AssessmentStudy (MCHEAS).

Data from Fathead saltof PFOS inIP ACUTE TOXICITY TO FISH TEST SUBSTANCE Identity:PerfluorooctanesulfonatAem,monium salt;may also be referred to as PFOS NH44saltorPC-93. (1-Octanesulfoniaccid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafalmumornoi-u,m salt,CAS # 29081-56-9) Remarks: Test sample was takenfrom 3M productionlot#1.

ACUTE TOXICITY TO FISH (MUMMICHOG) TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may alsobe referredtoas PFOS, FC-95, oras a component ofFC-780.

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