ATTACHMENT TO LETTER TO C.

mVr07Ji\ Summary N-EtFOSE Rabbit Teratology Study Numbers: 3MT-6316.8, Argus 418-010 Compound & Lot: N-EtFOSE (N-Ethyl-Perfluoroocyanesulfonamido Ethanol) - Lot FM3923 (30035, 30037, 30039) 98.2% pure (SMD Analytical Request 52489) Analytical Documentation filed along with final report.

W iS C0 N S PMOASDTI S CO NP r, I WC F1 F-5O3 X7 077 S* 47 5C4 0 FINAL REPORT AR71G-0323 ' VI !

A(U2rO51% PFOA and Associated Salts Ecotoxicity Elements Title Activated Sludge R espiration Inhibition T es t - F C -1 0 1 5 -X Acute Toxicity o f F C -1 01 5 to the Fathead Minnow, Pim ephales prom elas Growth and Reproduction Toxicity Test with F C -1 01 5 and the Freshw ater Alga, Selenastrum capricornutum Acute Toxicity o f F C -1 0 1 5 to the Daphnd, D aphnia m agna Laboratory or Author 3M Env.

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M &SL& - 0 7 lf-lh TO XIC ITY TO AQUATIC PLANTS TEST SUBSTANCE_______________________________________________ Identity: A mixture containing perfluorooctanesulfonate; may also be referred to as PFOS, FC-95, or as a component of FC-203C and L-5440. (1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-, potassium salt, CAS # 2795-39-3) Rem arks: The 3M production lot number was not noted.

A R A 2.6 - 085 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-603F. (1Octanesulfonic acid) (CAS # 2795-39-3).

-AU SLZ6 ~C>e77 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-783. (1Octanesulfonic acid) (CAS # 2795-39-3).

AR226-0988 has actually been processed as 8EHQ-0501-0373 but is included here in FYI-0101-1378 as well as it was received as an attachment to this FYI.

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A \ |1 % PRo^& UNITED STATES ENVIRONMENTAL PROTECTION AGENCY WASHINGTON, D.C. 20460 Certified Mail Return Receipt Requested ASSISTANT ADMINISTRATOR FOR ENFORCEMENT AND COMPLIANCE ASSURANCE Andrea Malinowski (D-8078-1) E.I. du Pont de Nemours and Co.

Final Report July 2003 AR226-1521 STUDY OF THE ATMOSPHERIC FATE OF FLUORINATED ALCOHOLS RECEIVED OPPT NCIC 03 SEP 30 PM 13:30 CNRS-LCSR Contract with RAND Corp. for the Telomer Research Program Study of the atmospheric fate of fluorinated alcohols FOREWORD This work has been carried out by Georges Le Bras (principal investigator, CNRSLCSR), Valrie Bossoutrot (Post-doc, CNRS-LCSR) and Isabelle Magneron (Post-doc, CNRS-LCSR).

35pp. 3M Katherine E.

received OPPT HCIC ^ HAY200 i 2 4i1 9: j q ^ Study Title T e n n e s s e e R iv e r V a ll e y S a m p le s 26" 1733 Author Mark E.