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AR226-3142 CONFIDENTIAL SPONSOR ElfAtochemS.A.

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RAR _ SUE 400 AR226. 3218 -_-- wDuPeonmt.9w05w7 TRADE SECRET Study Title H-25183: Static, Acute, 96p-rHoomuerlSacsreening Test to Pimephales Laboratory Project ID: DuPont-9057 AUTHOR: Alan Samel, M.S, STUDY COMPLETED ON: January 16, 2002 -- PERFORMING LABORATORY: EH.aLskedlulPLoanbtodreatNoerymofuorrsHeaanldthCaonmdpEannvyironmental Sciences NElekwtaornk,RoDaedl,awP.aOr.e B1o9x71540-0050 PS `CompanySanitized.

ARR26 _ 3235 a7 | 512045a1G6ovSaugbeehSrronyi iTnoRxaitcith OneGenrnion Repro Evalions AR22DR6euvr-iosnetd35P3a28g6e35 `TRADE SECRET Study Tide H-24516: Subchronic Toxicity with One.9G0e-nDearaytGioanvaRgeepSrtoudduyetinonRaEtvsalustions Revision No. 1 Volume 2 of TEST GUIDELINES: U.S.

423 -- Haskell Laboratory for Toxicology and Industrial Medicine April 5, 2002 M226 _ 324 TO: Study in Rats Ca G.

AR226 - 3254 466 tHLt2eS7G6r7:omnAelpnSaaln Cmrsow ad row Rat capricorn STUDY INFORMATION Substance Tested;(m-- Synonyms/Codes: -- i) Haskell Number: 25767 = AR2R6- 3284 oDurwon e123n02 Known Impurities: None Physical Characteristics: White liquid dbserved.

AR2%G - 2296 a7 TRADE SECRET Study Title H-25435 Repeated-Dose Dermal Toxicity 28-Day Study in Male Rats AR2R6 - 3296 DuPon11574 TEST GUIDELINES: U.S.

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AR226-3064 DuPont HLR 904-96 BASKS&L LABORATORY VOS.

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PathologAyssociateisnfernational A Company ofScienceApplicationisntemationCaolrporation An &rp"v*.O~ CopwV PATHOLOGY REPORT (ANCILLARY STUDY) ELECTRON MICROSCOPIC EVALUA17ION OF LIVER IN CYNOMOLGUS MONKEYS 26-WEEK CAPSULE TOMCrrY STUDY WITH PERFLUOROOCTANE SUIXONIC ACED POTASSIUM SALT (PFOS,-,T-6295I)N CYNOMOLGUS MONKEYS CLIENT STUDY'NUMBER 6329-223 PAI STUDY NUM33ER EM 99.76 Prepared by: James B.

Protocol.PFOS: A 7-D (Lemna gibbaG3) PROTOCOL PFOS: A 7-DAY TOMCrrY TEST WrrH DUCKWEED (LemnagibbaG3) U.S.EnvironmentaPlrotectioAngency Series850 -EcologicaElffectsTestGuidehm OPPTS Nunber $50.4400 3M Lab RequestNo.

Data from Fathea saltofPFOS inIP ACUTE TOXICITY TO FISH TEST SUBSTANCE Identity:PerfluorooctanesulfonatAem,monium salt;may alsobe referred to as PFOS NH4+ saltor FC-93.

ACTIVATED SLUDGE RESPIRATION INHIBITION TEST TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may also be referredto as PFOS, FC-95, or as a component ofFC-201 F-X. (1Octanesulfonicacid)(CAS # 2795-39-3).