` ARR26-009 ACUTE TOXICITY TO AQUATIC INVERTEBRATES (DAPHNIA MAGNA) TEST SUBSTANCE Identity: ArefmeirxrteudretocaonstaPiFnOiSng, pFeCr-f9l5u,oroorocatsanaescuolmfponoanteen,twhoficFhC-m2a0y6CalEs.o b(1eOctanesulfonic acid) (CAS# 2795-39-3).

AR226-2065 WASHINGTON WORKS INDUSTRIAL HYOIENE REPORT FROM 'l-Jan-1988 TO 31-0ct-1991 AREA; FLUOROCARBONS - HOMOPOLYMERS 31-0ct-1991 Page I CHEMICAL SAMPLE LOCATION *sCONTROL C-8/FC-143 11%.

WATER SOLUBILITY (BY ANALYSIS OF TOC) TEST SUBSTANCE IdentityP:erfluorooctanesulfflounoyrlidmea;y alsobe referrteodas POSF, or FX-8. (1-Octanesulfonyflluoride, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafClAuSor#o-3,0735-7).

BIODEGRADATION (BOD/COD) TEST SUBSTANCE Identity:Perfluorooctanoiaccid,ammonium salt;may alsobe referredto as PFOA ammonium salt,Ammonium perfluorooctanoateF,C116, FC-126, FC-1 69,or FC-143.

ACUTE TOXICITY TO FISH TEST SUBSTANCE Identity: N-Ethylperfluorooctanesulfonamide; may also be referred to as U1464, EtFOSA, EtPOSA, F-6309, or FX-12. (1Octanesulfonamide, 1,1,2.2,3,3,4.4,6,5.6,6.7.7.8,8.8heptadecafluoro-N-ethyl-, CAS # 4151-50-2) Remarks: Material is a white solid, lot 505 (cc842-3, F6309, L-1089).

BACK TO MAIN TOXICITY TO FISH (Saltwater Rainbow Trout) TEST SUBSTANCE Identity: Perfluorooctanesulfonate; may also be referred to as PFOS or FC-95. (1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-, potassium salt, CAS # 2795-39-3) Remarks: The test substance is a white powder of uncharacterized purity.

TOXICITY TO AQUATIC PLANTS TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesuftnatew,hich may alsobe referredtoas PFOS, FC-95, oras a component ofFX-3104. (1Octanesulfoniaccid)(CAS # 2795-39-3).

Sr aD E. 1. 0u PoNT DE NEMOURS 5 COMPANY WILMINGTON, DELAWARE 19898 (carbon copies Listes on page 5 AR R86 1494 - TOXICOLGGY AND INDUSTRIAL MEDICINE May 6, 1981 g5 g33 PERSONAL CONFIDENTIAL &H 38 3 55 MEMO TO: HP.PD,E.

ARL26 - 0802 ACUTE TOXICITY TO FISH (FATHEAD MINNOW) TEST SUBSTANCE.

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Experiment No.: Conducted At: Dates Conducted: Conducted By: Reviewed By: Acute ocular Irritation Test with T-3493 in Albino Rabbits 0884EB0008 Safety Evaluation Laboratory Piker Laboratories, Inc.

AR6-0512 ACUTE TOXICITY TO AQUATIC INVERTABRATES (DAPHNIA MAGNA) TEST SUBSTANCE Identity: Perfluorooctanoic acid, ammonium salt; may also be referred to `1a1s6P, FFOC-A12a6m,moFCn-i1u69m,saolrt,FCA-m1m4o3.ni(uOmctpaenrofilcuoarcoiod,ctanoate, FCpentadecafluoro-, ammonium salt, CAS # 3825-26-1) Remarks: 3M production lot number 350.

MONTHLY REPORT P.

BACK TO MAIN TOXICITY TO AQUATIC INVERTABRATES (Artemia sp) TEST SUBSTANCE Identity: Perfluorooctanesulfonate; may also be referred to as PFOS or FC-95. (1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-, potassium salt, CAS # 2795-39-3) Remarks: The test substance is a white powder of uncharacterized purity.

BACK TO MAIN BIODEGRADATION (BOD/COD) TEST SUBSTANCE Identity: Perfluorooctanesulfonylamido(ethyl)acetate; may also be referred to as PFOSAA, FC-128 or as the major component of FC-127, FC-129, FC-109, FC-109-X, FC-4351, or L-6778.