nc-oio-j CHRONIC TOXICITY TO EARLY LIFE STAGE OF FISH TEST SUBSTANCE Identity: Perfluorooctanesulfonate; may also be referred to as 14C78.02, PFOS or FC-95. (1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-, potassium salt, CAS #2795-39-3) Remarks field: The test substance is a white powder.

M & U 6 - 07LO MICROBIAL INHIBITION (DEHYDROGENASE ACTIVITY TEST) TEST SUBSTANCE________________________________________________ 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 # 2795-39-3).

AR A S - 0 7 & O MICROBIAL INHIBITION (DEHYDROGENASE ACTIVITY TEST) TEST SUBSTANCE____________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-206 or L3243. (1-Octanesulfonic acid) (CAS # 2795-39-3).

B IO D EG R A D A T IO N (301E) TEST SUBSTANCE Identity: A mixture containing perfluorooctanesulfonate, which may a lso be referred to a s P F O S , FC -95, or a s a com ponent of FC -3017. (1Octanesulfonic a d d ) (C A S # 2795-39-3).

ARllt-03G6 Attached are comments on the 3M Technical Report "Analytical Methodology and Support.

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ACUTE TOXICITY TO FISH TEST SUBSTANCE Identity: Perfluorooctanesulfonate, DEA salt; may also be referred to as PFOS DEA salt, FC-99, or 3M Sample No. 2. (1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-, compd. with 2,2'-iminobis[ethanol] (1:1), CAS # 70225-14-8) Remarks: Test sample is a mixture of the test substance in water (approximately 25% test substance and 75% water).

4R - 0 2 7 & ACUTE TO XIC ITY TO FISH (BLUEGILL SUNFISH) TEST SUBSTANCE________________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-783. (1Octanesulfonic acid) (CAS # 2795-39-3).

ARX&0357 CHRONIC TOXICITY TO FISH TEST SUBSTANCE Identity: N-ethylperfluorooctane sulfonamidoethanol; may also be referred to as N-EtFOSE Alcohol or FM-3422. (1-Octanesulfonamide, N-ethyl1 I 1I2 , 2 I3 ,3 )4 ,4 ,5 ,5 ,6 I6,7,7,8>8I8-heptadecafluoro-N-(2-hydroxyethyl)-, C A S# 1691-99-2) Remarks: Material is an off-white, waxy solid of uncharacterized purity.

M&3L& - 07/9 ACUTE TOXICITY TO AQUATIC INVERTEBRATES (DAPHNIA MAGNA) TEST-SUBSTANCE_______________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-203. ( 1 Octanesulfonic acid) (CAS # 2795-39-3).

WARF INSTITUTE, INC.

A R . 2 6 - O S Z Z ACUTE TOXICITY TO FISH (BLUEGILL SUNFISH) TEST SUBSTANCE___________________________________________ ____ 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).

BACK TO MAIN Centre Analytical Laboratories, Inc. 3048 Research Drive ^ Phone: (814) 231-8032 State College, PA 16801 www.centrelab.com Fax: (814) 231-1253 or (814) 231-1580 Analytical Report Fluorochemical Characterization of Drinking Water Samples Decatur, Alabama (W1979) Centre Analytical Laboratory Report No. 023-007B (Revision 1) Revision Date 3/20/01 Testing Laboratory Centre Analytical Laboratory, Inc. 3048 Research Drive State College, PA 16801 3M Environmental Laboratory Contact Kent R.

f).R 7 2 6 -0 13<j International Research and Development Corporation SPONSOR: COMPOUND: SUBJECT: 3M Company Fluorad Fluorochemical Surfactant FC-95 Ninety Day Subacute Rat Toxicity Study.