BACK BIODEGRADATION TEST SUBSTANCE Identity: Perfluorooctanesulfonylamido(ethyl)acetate; may also be referred to as PFOSAA, N-EtFOSAA, FC-128 (acid form) or FC-129 acid.

AR106-0370 Centre Analytical Laboratories, Inc. 3048 Research Drive Phone: (814) 231-8032 State College, PA 16801 Fax: (814) 231-1253 or (814) 231-1580 Analytical Report Fluorochemical Characterization of Drinking Water Samples Cleveland, Tennessee (W1973) Centre Analytical Laboratory Report No. 023-007A Testing Laboratory Centre Analytical Laboratory, Inc. 3048 Research Drive State College, PA 16801 3M Environmental Laboratory Contact Kent R.

AR.1&-CH34 ( r -'h IN VITRO MICROBIOLOGICAL MUTAGENICITY ASSAYS OF 3M COMPANY COMPOUNDS T-2247 CoC AND T-2248 CoC Final Report 5 September 1978 By.: Vincent F.

CLIENT PRIVATE AR3X-0ia PROTOCOL TITLE: Metabolism of T-6292, T-6293, T-6294, and T-6295 by Rat and Human Hepatocytes SRI Study No.

AR226-0(61 DT15 3M MEDICAL DEPARTMENT, CORPORATE TOXICOLOGY - ST-43: Standard Procedure fo r Liver Subcelular Fractionation - Study Objective: Perfluorochemical compounds such as perfluorooctane sulfonate (PFOS) have been linked with reduction in serum cholesterol levels and liver has been identified as the primary target site.

3M MEDICAL DEPARTMENT, CORPORATE TOXICOLOGY Protocol for Study No.

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Interoffice Correspondence c :H .E .

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

ACUTE TOXICITY TO FISH TEST SUBSTANCE Identity: Perfluorooctanoic acid; may also be referred to as PFOA, FC26, or FX-1001.

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Aft SLS.6 _ 07& 6 ACUTE TOXICITY TO AQUATIC INVERTEBRATES (EASTERN OYSTER) 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).

AA 6 - Oi3^ ACUTE TOXICITY 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 FC-600. (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 3M production lot number was 2367.

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AA oIZ 6 FLUOROPOLYMERS DIVISION 10 0 3 April 13, 2001 Mr.