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.

ARX&-0370 SOIL ADSORPTION TEST SUBSTANCE Identity: N-methylperfluorooctane sulfonamldoethanol; 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.

/q (U 0 6 -0 4 & 5 RECEIVED Oral Teratology Study of T-3141CoC in Rabbits iYVir\r\ I S' ^ WUw'U Experiment No. : Conducted At: Dosing Period: Study Director: 0681TBG398 Safety Evaluation laboratory Riker laboratories, Inc.

Corporate Occupational Medicine 3M Center, Building 220-3W-05 St.

A f l J2A6 SUMMARY OF A STUDY CONDUCTED WITH POTASSIUM PERFLUOROALKYL SULFONATE (PFOS) AT DUPONT Type: Species/S train: Sex/Number: Exposure Period: Frequency of Treatment: Exposure Levels: Method: Biopersistence Screening Study Rats/Crl :CDSD(IGS)BR Male/5/group 5 or 10 days; 94 days of recovery Ad libitum for 5 or 10 days Ammonium perfluorooctanoate: 20 mg/kg Potassium perfluoroalkyl sulfonate (PFOS): 10 mg/kg Six groups of rats were administered ammonium perfluorooctanoate, 1 group received the test substance for 5 consecutive days and the other 5 groups received the test substance for 10 days.

0100-/37% 37i l l UNITED STATES ENVIRONMENTAL PROTECTION AGENCY S WASHINGTON, D.C. 20460 AftSiSU -OG09 July 18, 2000 fa OFFICE OF PREVENTION, PESTICIDES AND TOXIC SUBSTANCES NOTE TO FYI FILE by Terry O'Bryan/RAD/OPPT Reference: FYI-0600-01378 Submission Date: June 14, 2000 The above referenced FYI submission is 3M's response to EPA regarding three reports that appeared to be missing from their 5/4/00 submission (also FYI-01378).

ARSLA6 - 0 7 6 / ACUTE TOXICITY TO FISH (FATHEAD MINNOW) TEST SUBSTANCE____________________________________________ Identity: Mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-203CF-X or FC-203CF. (1-Octanesulfonic acid) (CAS # 2795-39-3).

AR 6 -0 7 3 !

A R .& & 6 _ O S O H - A C U T E T O X IC IT Y TO F IS H (M U M M IC H O G ) T E S T S U B S T A N C E ____________________________________________________ Id en tity: A mixture containing perfluorooctanesulfonate; m ay also be referred to as P F O S , FC-95, or as a com ponent of FC-206C and 81-2/8. (1-O ctanesulfonicadd, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-, potassium salt, C A S # 2795-39-3) R em arks: The 3M production lot number w as not noted.

M A S 6 - 0 2 /5 ACTIVATED SLUDGE RESPIRATION INHIBITION TEST TEST SUBSTANCE________________________________________________ Identity: A mixture containing periluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-206CE. (1Octanesulfonic acid) (CAS # 2795-39-3).

AR.A2.6 _ 0SS6 TO XICITY TO AQUATIC PLANTS TEST SUBSTANCE Identity: Mixture containing perfluorooctanesulfonate which may also be referred to as PFOS, FC-95, or as a component of FC-3003. (1Octanesulfonic acid) (CAS # 2795-39-3).

DUPONT TELOMER MEETING MONDAY, DECEMBER 17, 2001 AK2.2.&- 101+1 1:00-3:00 P.M.

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Arasi& _ u s i TSCA NCIC Notification Form for CBI Documents Docket Number: fl-R ________________ Document Control Number: g j> t( Document Date: Document Type: W - ?

MA&6 _ 126g TSCA NCIC Notification Form for CB!