ATTACHMENT TO LETTER OF 12/05/05 3M FLUOROCHEMICAL SUBMISSION BACK TO MAIN 3M FLUOROCHEMICAL SUBMISSION TOXICOLOGY, EPIDEMIOLOGY AND MEDICAL SURVEILLANCE Click on Study Title to View Report Multiple Chemicals 1.

COMMENTS OF 3M COMPANY TO THE EPA SCIENCE ADVISORY BOARD PFOA REVIEW PANEL Contact: Geary Olsen, D.V.M., PhD.

SRPT T-6295.8, T-6889.1, T-6316.4 DTI 5-A 3M MEDICAL DEPARTMENT, CORPORATE TOXICOLOGY Title; Inter-Species Comparison of Mechanisms Fluorochemicai Toxicity following Intraperitoneal dosing of perfluorooctanesulfonate (PFOS, T-6295) or ammonium perfluorooctanoate (APFO, T-6889) in Rats and Guinea Pigs and oral dosing of N-ethyl perfluorooctanesulfonamido ethanol (N-EtFOSE, T-6316) in Rats.

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UNITED STATES ENVIRONMENTAL PROTECTION AGENCY WASHINGTON, D.C. 20460 MG 8 2000 Mr.

4r* 226-2047 Roger J Zipfel 07/27/2001 01:30 PM To: John E Crum/SE/DuPont@DuPont cc: Ta-W ei Fu/CL/DuPont@DuPont Subject Re: C-8 sampling Q John, this is very perplexing information.

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3M ENVIRONMENTAL LABORATORY REPORT NO.

Taft/ Taft Stettinius & Hollister LLP 425 Walnut Street, Suite 1 8 0 0 /Cincinnati, OH 45202-3957/Tel: 513.381.2838/Fax: 513.381.0205 /www.taftlaw.com Cincinnati / Cleveland / Columbus / Dayton / Indianapolis / Northern Kentucky / Phoenix / Beijing Robert A.

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