NORTHERN KENTUCKY OFFICE SUITE 340 1717 DIXIE HIGHWAY COVINGTON, KENTUCKY 41011-4704 600-331-2838 513-381-2836 FAX: 513-381-6613 DAYTON, OHIO OFFICE SUITE 800 110 NORTH MAIN STREET DAYTON, OHIO 45402-1766 937-228-2838 FAX: 937-228-2816 Robert A.

Katherine E.

Taft Stettinius & Hollister LLP 4 2 5 W alnut Street, Suite T 80 0 /C in cin n a ti, OH 4 5 2 0 2 -3 9 5 7 /Tel: 5 1 3 .3 8 1 .2 8 3 8 / Fax: 5 1 3 .3 8 1 .0 2 0 5 / w w w .taftlaw .com Cincinnati /Cleveland /Colum bus /D ayton /Indianapolis /Northern Kentucky /Phoenix /Beijing Robert a .

P-1 "McCrea, Deborah" <mccrea@taftlaw.com> 11/03/2009 12:19PM To NCIC O PPT@ EPA cc "Bilott, Robert A." < bilott@taftlaw.com> bcc Subject 11 /0 3 /2 0 0 9 Letter To E PA Docket Center Taft/ Deborah McCrea / Legal Assistant Taft Stettinius & Hollister LLP 425 W alnut Street, Suite 1800 Cincinnati, Ohio 45202-3957 Tel: 513.381.2838 Fax: 513.381.0205 www.taftlaw.com / mccrea@ taftlaw.com o cO 3E o : co ....

I 3M Corporate Toxicology and Regulatory Services 3M Center, Building 0220-02-E-02 St.

3M GLP10-01-02; Interim Report 11 Analysis o f PFBS, PFHS, and PFOS In Groundwater Former Sludge Incorporation Area - November 2010 GLP10-01-02: Interim Report 11 - Analysis o f PFBS.

f GLP10-01-02; Interim Report 22 Analysis of PFBS, PFHS, and PFOS in Groundwater 3rd Quarter Sampling - 2011 GLP10-01-02; Interim Report 22 - Analysis of PFBS, PFHS. and PFOS in Groundwater Samples Collected from Decatur.

M2&-0236 Attachments to Letter to C.

BACK TO MAIN Final Report AR226-1030A018 Mortality Study of Workers Employed at the 3M Cottage Grove Facility Submitted by: Bruce H.

BACK TO MAIN Sulfonated Perfluorochemicals: Maps of Environmental Sampling Sites for Six Cities in Multi-City Study for 3M Specialty Materials prepared by Battelle Memorial Institute 505 King Ave.

Environmental Monitoring - Multi-City Study Water, Sludge, Sediment, POTW Effluent and Landfill Leachate Samples Executive Summary 3M Environmental Laboratory June 25, 2001 Introduction The Multi-City study was conducted to obtain data about the presence of fluorochemicals in the environment, foods, and drinking water, in order to understand the potential sources of human and environmental exposures.

BACK TO MAIN Study Title Microbial Metabolism (Biodegradation) Studies of Perfluorooctane Sulfonate (PFOS) 11!.

Attachment to Letter to C.

3M ENVIRONMENTAL LABORATORY REPORT NO.

3M ENVIRONMENTAL LABORATORY REPORT NO.