AKM-oJi VAPOR PRESSURE TEST SUBSTANCE Identity: N-Ethylperfluorooctanesulfonamide; may also be referred to as U1464, EtFOSA, EtPOSA, F-6309, or FX-12. (1Octanesulfonamide, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-N-ethyl-, CAS # 4151-50-2) Remarks: Material is a white solid.

5 OTHER AVAILABLE STUDY SUMMARIES FOR N-EtFOSE ALCOHOL 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.

/WU06-OS33 BIODEGRADATION TEST SUBSTANCE Identity: Perfluorooctylsulfonate, didecyldimethylammonium salt; may also be referred to as Fluoroalkyl ammonium derivative. [1Decaminium, N-decyl-N,N-dimethyl-, salt with 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-loctanesulfonic acid (1:1), CAS # 251099-16-8] Remarks: The 3M production lot number was Lot 1.

3M General Offices March 17, 2000 3M Center 1 1 H Q - 0 3 0 0 - 0 0 3 7 3 u 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.

CAS Number 24448-09-7 3M Company -fir& & Voluntary Use and Exposure Information Profile N-methyl perfluorooctanesulfonamido ethanol I.

* CAS Number 376-14-7 3M Company A R k .G -Q S iS ' Voluntary Use and Exposure Information Profile N-ethyl perfluorooctanesulfonamido ethyl methacrylate 1 I.

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fifi 8.3.6 _ 0 6 S' PFOS Pharmacokinetic - / 000113 AN INVESTIGATION OF THE EFFECTS OF FLUOROCARBONS ON LIVER FATTY ACID-BINDING PROTEIN.

A R & A & - 0700 ACTIVATED SLUDGE RESPIRATION INHIBITION TEST TEST SUBSTANCE __________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95 or as a component of FC-201AF. (1Octanesulfonic acid) (CAS # 2795-39-3).

AR. - 0 7 & f ACUTE TOXICITY TO AQUATIC INVERTEBRATES (DAPHNIA MAGNA) 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).

M S ia -G - * 1 9 BIODEGRADATION (BOD/COD) TEST SUBSTANCE_______________________________________ __ Identity: A mixture containing perfluorooctanesulfonate; may also be referred to as PFOS, FC-95, or as a component of FC-206CF or FC-206CF-X. (1-Octanesulfonic acid) (CAS # 2795-39-3).

The Boeing CompanyR AX& - 06 9-3 Washington, DC FACSIMILE LEAD SHEET Please Check One: ___ Destroy Copy X Sender Will PickUp Date: October 10. 2000 No. of Pages LEAD +_4 Time Sent __ __________ To Charles M A uer___________ _________ Company US Environmental Protection Agency Bldg. ___________ Dept. ___________ City________________ State ___ _________________ Phone No.____________________________ _______ ___ Fax Phone No. (202) 260-8168____________ Check Phone No. __________________________ Special Instructions: From: Matthew C.

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-fT f^A fLG 106/ *rr Monitoring PerRuorinated Surfactants in Biota and Surface Water Sam ples Following an Accidental Release of Fire-Fighting Foam into Etobicoke Creek C H E R Y L A.