P-1 "McCrea, Deborah" <mccrea@taftlaw.com> 11/02/2009 11:42 AM bcc Subject 11/02/2009 Letter To EPA Docket Center i 3 ^i0:35 Taft / Deborah McCrea / Legal Assistant Taft Stettinius & Hollister LLP 425 Walnut Street, Suite 1800 Cincinnati, Ohio 45202-3957 Tel: 513.381.2838 Fax: 513.381.0205 www.taftlaw.com / mccrea@taftlaw.com Internal Revenue Service Circular 230 Disclosure: As provided for in Treasury regulations, advice (if any) relating to federal taxes that is contained in this communication (including attachments) is not intended or written to be used, and cannot be used, for the purpose of (1) avoiding penalties under the Internal Revenue Code or (2) promoting, marketing or recommending to another party any transaction or matter addressed herein.

P- 1 Faft/ Taft Stettinius & Hollister LLP 425 W alnut 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 .

6 0 P- 31 October 2003 AR226-1642 To: Mary F.

3M ENVIRONMENTAL LABORATORY REPORT NO.

3M ENVIRONMENTAL LABORATORY REPORT NO.

3M ENVIRONMENTAL LABORATORY REPORT NO.

3M ENVIRONMENTAL LABORATORY REPORT NO.

3M ENVIRONMENTAL LABORATORY REPORT NO.

3M ENVIRONMENTAL LABORATORY REPORT NO.

SEVERN TRENT LABORATORIES ANALYTICAL REPORT JOB NUMBER: 245318 Prepared For: Weston Solutions, Inc. 1400 Weston Way Building 5-2 West Chester, PA 19380-1499 Project: Confidential Decatur - FC Investigation Attention: Jai Kesari Date: 04/07/2006 Signature Name: Richard C.

PFOS: A 96-HOUR TOXICITY TEST WITH THE FRESHWATER ALGA (Anabaenaflos-aquae) FINAL REPORT WILDLIFE INTERNATIONAL, LTD.

ATTACHMENT TO LETTER OF JUNE 28, 2001 3M FLUOROCHEMICAL SUBMISSION BACK TO COMPOUNDS TOXICOLOGY, EPIDEMIOLOGY AND MEDICAL SURVEILLANCE DOCUMENTS Click on Study Title to View Report COMPOUND-SPECIFIC STUDIES N-EtFOSE alcohol N-ethyl perfluorooctane sulfonamidoethanol Repeat Dose 1.

ATTACHMENT TO LETTER OF JUNE 28, 2001 BACK TO COMPOUNDS 3M FLUOROCHEMICAL SUBMISSION TOXICOLOGY, EPIDEMIOLOGY AND MEDICAL SURVEILLANCE DOCUMENTS Click on Study Title to View Report COMPOUND-SPECIFIC STUDIES PFOS Perfluorooctane Sulfonate Repeat Dose Studies 1.

si a) *1\ 1 : Pamela Moseley/DC/USEPA/US 08/28/2008 10:46 AM To Toni Krasmc/DC/USEPA/US@EPA cc Deena Vann/DC/USEPA/US@EPA bcc Subject Fw: LOI Submission of August 1,2008 O Toni, 1.

31VI General Offices April 21, 2000 3M Center St.