28 Day Percutaneous Absorption Study with FC-99 in Albino Rabbits Experiment No.: Conducted At: Dates Conducted: Conducted By: 0979ABO633 Safety Evaluation Laboratory Riker Laboratories, Inc.

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BIODEGRADATION TEST SUBSTANCE Identity: N-ethylperfluorooctane sulfonamidoethanol; may also be referred to as 1N,-1E,t2.F2O3S,3E.4A,l4c.o5h,o5l,6o,r6F,M7,-73,482,28.,8-(h1e-ptOacdteacnaefsluulofroon-Na-m(i2d-eh,ydNr-oextyheytlh-yl)-, CAS #1691-99-2) Remarks: Material is an off-white, waxy solid of uncharacterized purity.

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AR R26 - 0716 ACUTE TOXICITY TO FISH (BLUEGILL SUNFISH) IESTSUBS ~~ T~AN 00 CE Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-203. (1Octanesulfonic acid) (CAS # 2795-393).

AR 826 -- 0794 BIODEGRADATION (BOD/COD) TEST SUBSTANCE Identity: ArefmeirxrteudretocaonstPaiFnOiSng,pFeCr-f9l5u,oroorocatsanaescuolmfponoanteen,twhoficFhC-m2a0y6Aa.lso(1b-e Octanesulfonic acid) (CA#S 2795-39-3).

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Co ARI2G-O WS \ Industrial 1B 810 I -FRTOENO TSATGELaRbOoArDu.tsuies, Ine.

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AR226-2842 SwSu&t^, BIO-TEST AA^zA^A Sw. \ 1810 FRONTAGE ROAD NohTMBROOK.

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BACK TO MAIN Centre Analytical Laboratories, Inc. 3048 Research Drive State College, PA 16801 www.centrelab.com ^P hone: (814) 231-8032 Fax: (814) 231-1253 or (814) 231-1580 Analytical Report Fluorochemical Characterization of Surface Water Samples Decatur, Alabama (W1979) Centre Analytical Laboratory Report No. 023-014B (Revision 1) Revision Date 3/21/01 Testing Laboratory Centre Analytical Laboratory', Inc. 3048 Research Drive State College, PA 16801 3M Environmental Laboratory Contact Kent R.

/)Rm-OHI Submitted to : BIOSEARCH, INC. p.o. box 8598 Philadelphia, Pennsylvania 19101 te leph one: (215) 848-4499 3M Company 3M Center S t .

AR&-O50Z THE EFFECTS OF CONTINUOUS AQUEOUS EXPOSURE TO 78.03 ON HATCHABILITY OF EGGS AND GROWTH AND SURVIVAL OF FRY OF FATHEAD MINNOW (Pimephales promelas) . f=c- /yj RESEARCH REPORT SUBMITTED TO 3M COMPANY ST.

AKZ2G - BIODEGRADATION (BOD/COD) TEST SUBSTANCE Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC -201. (1Octanesulfonic acid, perfluoroalkyl sulfonate salts (5) + (5140P)) (CAS # 2795-39-3) Rem arks: The 3M production lot number was not noted.