`Summary PFOS Rat Cross-Fostering Study Numbers: 3M T-6295.13, Argus 418-014 Compound & Lot: Analytical Request PFOS (Perfluorooctanesulfonate) 53030) ~Lot 217, 98.4% pure (SMD CAS.

AR 226 -- O878 BIODEGRADATION (BOD/COD) JEST~S ~ UBSTANCE Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-787 or FC787X. (1-Octanesulfonic acid) (CAS # 2795-39-3).

Quality Assurance Project Plan Multi-City Study Sampling Task (N100672) BACK TO MAIN Amendment 1 to Revision No.: 1 Effective Date: June16,1999 Page 1 of 3 Amendment 1 to the Quality Assurance Project Plan and Associated SOP'S for Empirical Human Exposure Assessment Multi-City Study Sampling `Task To June 16,1999 Prepared by Ba ttelle 397 Washington Street Duxbury, MA 02332 (781) 934-0571 MRROVALS L u - `-1 Donald Gunster 1 Sampling Task Leader RAosaPnnaWBuh%l 64& Battelle Sampling Task QA Officer Marcia Nishioka ` Battelle Project Manager Susan Abbgy U Battelle Prog!

Toxicological Summary PFOS Dietary Acute Mallard Study Test Substance: Perfluorooctanesulfonate (PFOS) Structure: p1o-tOacstsainucsmuslaflot,niCcASa#cid2,7915,-13,92323,3,4:4,5,5,6,61.7,888-heptadecafluoro-, Remarks: Tsthoeredtesutndseubrsatamnbcieenits caonwdhiittieonpsoawndderpu(ri3tMy wloats#o2r1i7g)i.nalTlyhedestaemrpmlienedwatso bteech9ni0qu4es%.

- ADIETARYLCS0 STUprDoYsWITHTHEMALLARD WILDLIFE INTERSNMARTEIQOUNEASLTLTNDO., PU2R7O2J3ECT NO. 454-102 Series 8U5S0..EcEnovliorognimeantfaelcPtrostTeectsitonGAugiendceyli(nGeras) CPPSNumber 850.2200 FIFRASubdivisionB,Section 712 OECD Guideline205 AUTHORS: CSeoaunr't.nGe5ayl.laCgahseery JRaoymaBo.nBLdesvVearns Hoven STUDY INITIATION: April 21,1999 STUDY COMPLETION: April 26,2000 AMENDED REPORT DATE: Mirch 23, 2008 SUBMITTTEDO Enviro53n5M5mBeCnoutrhpaolrALavatebionorunaetory St Pu, Meson $5144 Wildlife International, Ltd.

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AR226-2147 INTEROFFICE HEMORAKDuH TO: J.

FOR DU PONT USE ONLY AR226-2954 Du Pont HLO 19-91 Study Title Skin Sensi'tizati'on Test w1t)fB|in Guinea Pigs Study Coinpleted On March 25. 1991 Contracting Laboratory Pharmakon Research International, Inc.

FOR DU FONT USE ONLY AR226-2959 Pu Pent BLR 325-91 Skin Irritation Test vit in Rabbits I Author !

%^J W AR226-2993 Baugy, June 17, 1993 STUDY No 920084 E OCULAR PRIMARY IRRITATION Sponsor: ELF ATOCHEM SA La Defense 10 Cedex 42 92091 PARIS LA DEFENSE FRANCE CompanySanitized.

^ , * / ," AR226-3014 BBS" Study Title USP BiocoBpatibility Testing of H-21016 and H-21017 Study CoBpleted on April 18, 1995 Contracting Laboratory North American Science Associates, Inc. 2261 Tracy Road Northvood, Ohio 43619--1397 for Haskell E.

AR226-3130 TRADE SECRET Study Title H-24119: Eye Irritation Test in Rabbits Laboratory Project ID: DuPont-3312 AUTHOR: Tracy A.

Pathology Associates International A Company of ScienceApplicationsInternationaClorporation AnErobrmk)wmdCoMmy Sponsor: 3M St.Paul,Minnesota PROTOCOL Study Title: CellProliferatiSotnudy withN-EthylPerfluorooctanesulfonamEitdhoanol(N-EtFOSE; 3M T-6316.11), PerfluorooctanSeulfonicAcid PotassiumSalt(PFOS; 3M T-6295.16)a,nd N-EthylPerfluoroctanesulfonamid (PFOSA 3M T-7091.1)inRats Date: January12, 1999 Performing Laboratory R.O.W.

AOVANCEO BIOANALYTICAL SERVICES, INC

TOXICITY TO AQUATIC PLANTS TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may alsobe referredtoas PFOS, FC-95 or as a component of FC-201AF. (1Octanesulfonicacid)(GAS # 2795-39-3).