BACK TO MAIN PHOTODEGRADATION (AQUEOUS DIRECT AND INDIRECT) TEST SUBSTANCE_____________________________ Identity: N-methylperfluorooctane sulfonamidoethanol; may also be referred to as N-MeFOSE Alcohol, FC-790, or FM-3925. (1Octanesulfonamide, N-methyl-1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-N-(2-hydroxyethyl)-, CAS # 24448-09-7) Remarks: Material is an off-white, waxy solid.

BACK TO MAIN VAPOR PRESSURE TEST SUBSTANCE Identity: Perfluorooctanoic acid, ammonium salt; may also be referred to as PFOA ammonium salt, Ammonium perfluorooctanoate, FC116, FC-126, FC-169, or FC-143.

3M Medical Department Study: T-6316.1 3M Medical Department Study: T-6316.1 Analytical Report: FACT-TOX-003 LRN-U2104 Analytical Report: FACT TOX-003 LRN-U2104 Study Title 104-Week Dietary Carcinogenicity Study with Narrow Range N-Ethyl Perfluorooctanesulfonamido Ethanol in Rats Analytical Laboratory Report Title Determination of the Presence and Concentration of PFOS, PFOSA, PFOSAA, EtFOSE-OH, M556, and PFOSEA in Serum and Liver Samples of Crl:CD(SD) IGS BR Rats Exposed to N-Ethyl Perfluorooctanesulfonamido Ethanol Data Requirement Not Applicable Author 3M Environmental Laboratory Study Completion Date June 06, 2001 Performing Laboratories Liver and Serum Analyses '1 3M Environmental Laboratory Building 2-3E-09, 935 Bush Avenue St.

A R 226 'C o ' Oral Teratology Study of FC-95 in Rats Experiment No.: Conducted At: Dosing Period: Study Director: 0680TR0008 Safety Evaluation Laboratory Riker Laboratories, Inc.

ARiaG-oom VAPOR PRESSURE /fc-2.

M22G-OIH 3M M ED ICA L DEPARTM ENT, CO RPO RA TE TO X ICO LO G Y P rotocol fo r S tudy No.

Attachments to Letter to C.

HAZLETON WASHINGTON 9 2 0 0 L E E S B U R G PIKE V I E N N A .

A lU U -o ^ o Pathology Associates International A Company of Science Applications International Corporation toEmptarm+OmmdCarmnr Sponsor: St.

TOXICITY TO AQUATIC PLANTS TEST SUBSTANCE_________________________________________________ Identity: N-ethylperfluorooctane sulfonamidoethanol; may also be referred to as N-EtFOSE Alcohol or FM-3422. (1-Octanesulfonamide, N-ethyl1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-N-(2-hydroxyethyl)-, CAS #1691-99-2) Remarks: Material is an off-white, waxy solid of uncharacterized purity: The limited water solubility of this material prohibited a definitive determination of the aquatic toxicity.

AfW-ossH ACUTE TOXICITY TO AQUATIC INVERTEBRATES (E.G.

/IR -0 3 S 5 ACTIVATED SLUDGE RESPIRATION INHIBITION TEST TEST SUBSTANCE Identity: Perfluorodecanesulfonate, ammonium salt; may also be referred to as PFDS, FC-120, or 3M Sample J2905-1. (1-Decanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10heneicosafluoro-, ammonium salt, CAS # 67906-42-7) Remarks: Test sample is a mixture of the test substance in water and butyl cellosolve (approximately 25% test substance, 37.5% butyl cellosolve and 37.5% water).

/ N frU -0 5 2 .5 ACUTE TOXICITY TO FISH TEST SUBSTANCE_______________________________________________ Identity: Perfluorooctanoic acid, ammonium salt; may also be referred to as PFOA ammonium salt, Ammonium perfluorooctanoate, PFO, FC116, FC-126, FC-169, FC-143 or as the major component of FC1015.

_ o 6rg N-Et FOSE alcohol Teratology - / &- 0^0324 ( 0 H A Z L E T O N LABORATORIES AMERICA, INC. v t < k s N < * a a 4s o . u f t .

AfL ASL6 - 07A 3 ACUTE TO XIC ITY 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-203CE. (1Octanesulfonic acid) (CAS # 2795-39-3).