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BACK TO MAIN Biodegradation study Report The 35-Day Aerobic Biodegradation Study of PFOS Thursday, March 29, 2001 Project Number 3M Project ID: LIMS E01-0444 Pace Contract Analytical Project ID: CA104 Study Director Cleston C.

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3M Generai Offices 3M Center S t Paul, MM 55 144-1000 651 7 3 3 1 1 1 0 P-1 i\ QOlefP. ' 3M September 17,2008 RF'Ct-IVTD J ` I u IL 08 SEP I 9 AH I0-* f 0 Document Control Office EPA East Room 6428 AR- 226 Docket US Environmental Protection Agency 1201 Constitution Avenue, NW W ashington DC 20460 iOOC -.I $ : li 9 VIA Federal Express AZ2Cr38a% Attention: Docket No.

Corporate Health Physics CCoorrppoorraattee POrcocduupcattiRonesaploMnseidbiicliintye Corporate Toxicology 3M Medical Department P3SOMt.

Experiment No.: Conducted At: Dates Conducted: Conducted By: ARXtG-0 237 Primary Skin Irritation Test with T-3608 in Albino Rabbits 0984EB0368 Pathology and Toxicology Riker Laboratories, Inc.

Experiment No.: Conducted At: Dates Conducted: Conducted By: Reviewed By: Acute Ocular Irritation Test with T-3493 in Albino Rabbits /Ume-ojp 0884EB0008 Safety Evaluation Laboratory Riker Laboratories, Inc.

WATER SOLUBILITY (BY ANALYSIS OF TOC) TEST SUBSTANCE Identity: Perfluorooctanesulfonyl fluoride; may also be referred to as POSF, or FX-8. (1-Octanesulfonyl fluoride, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-, CAS #30735-7).

/IfttiG -cm R OCTANOUW ATER PARTITION COEFFICIENT 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 -h e p ta d e c a flu o ro -N -(2 -h y d ro x y e th y l)-, CAS # 1691-99-2) Rem arks: Material is an off-white, waxy solid.

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FROM LATHAM & WATKINS WASH DC #3 (THU) 4. 27'00 12:11/ST. 12:06/NO. 4261478959.

07A f L Z Z G - S/ TOXICITY TO AQUATIC PLANTS 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).

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AK _ O Z93 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-3017. (1Octanesulfonic acid) (CAS # 2795-39-3).

- & 995 TSCA NCIC Notification Form for CB!