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A R SlA 6 _ 0 8 7 / BIODEGRADATION (OECD 301D) I ES31SUB5TAMCE____________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-780B. (1Octanesulfonic acid) (CAS # 2795-39-3).

A R RS.& _ 0 9 l6 ACUTE TO XICITY TO FISH (FATHEAD MINNOW ) TEST SUBSTANCE________________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FX-3104. (1Octanesulfonic acid) (CAS # 2795-39-3).

-JR PRODUCTS DEPARTMENT -*a m b e r s w o r k s W.

Section I - Nylon-Teflon 7 - 2- August 31, 1981 ^ezz4rH55 C.

Internal Correspondence cc: James Boyd - Chemolite 116-1 Eileen Fasbender - 116-1 F.

( \ m r O M lj BIODEGRADATION (BOD) TEST SUBSTANCE Identity: Perfluorooctanoic acid; may also be referred to as PFOA, FC- 26, or FX-1001.

PERSONAL AND CONFIDENTIAL AR226-1981 O.

AR226-2796 _ ' !

2 . 4 5 R C V t a -79 mm> tJTil.iSKEO'BO; E 1. d u P o n t d e N em o u r s & C o m p a n y IN C O R P O R A T E D W il m in g t o n .

A R t t r O 3f l0 ACTIVATED SLUDGE RESPIRATION INHIBITION TEST TEST SUBSTANCE Identity: Perfluorodecanesulfonate, ammonium salt; may also be referred to as PFDS, FC-121-X, or 3M Sample E2112 and E2566-1. (1Decanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-heneicosafluoro-, ammonium salt, CAS # 67906-42-7) Remarks: Test sample is a mixture of the test substance in water and 2propanol, 1-(1,1-dimethylethoxy).

HASKELL LABORATORY FOR TOXICOLOGY AND INDUSTRIAL MEDICINE / cc: G.

AR226-2392 \ V y- Du Pon t I N T E R O F F I C E MEMORANDUM Dates From* Dept s T el No 12-May-1987 03s06pm EST TONY PLAYTIS PLAYTIS TEFTECH 2775 T O s ROGER ZIPFEL ( ZIPFEL ) CCs JOHN CRUM ( CRUM ) Subjects C8 In Water A t t ached is a copy of the analytical report for our five water samples, which are identified as follows

AR226-2761 LIVER STUDY OF WASHINGTON WORKS EMPLOYEES EXPOSED TO C-8: RESULTS OF BLOOD BIOCHEMISTRY TESTING WILLIAM E.

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