AR226-3164 DuPont-2925 TRADE SECRET Study Title H-24000: Biopersistence Screening 10-Dose Oral Gavage Study in Rats Laboratory Project ID: DuPont-2925 Author: Carol Finlay, B.A.

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0004 ("Tii mm AR&S.G- Anthony J Flaylis 08/08/2000 12:36 PM To: Gary W Jepson/AE/DuPont@DuPont co: Robin C Leonard/AE/DuPont@DuPont, RobertF Pinchot/DEV/AE/DuPont@Dl/Pont Subject Pensioner Blood Data Gary, C-8Here are the results for in blood tor all pensioners who were tested in both 1995 and 2000.

3M 3M General Offices QrtjM-M8il 3M Center St.

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 ....

INTERIM REPORT # 23 - Analysis of Sediment Samples STUDY TITLE Analysis of Perfluorobutanesulfonate (PFBS), Perfluorohexanesulfonate (PFHS), and Perfluorooctanesulfonate (PFOS) in Water, Soil, Sediment, Fish, Clams, Vegetation, Small Mammal Liver and Small Mammal Serum Using LC/MS/MS for the 3M Decatur Monitoring Program DATA REQUIREMENTS EPA TSCA Good Laboratory Practice Standards 40 CFR 792 STUDY DIRECTOR Jaisimha Kesari P.E., DEE Weston Solutions, Inc. 1400 Weston Way West Chester, PA 19380 Phone: 610-701-3761 INTERIM REPORT COMPLETION DATE May 2, 2006 PERFORMING LABORATORY Exygen Research 3058 Research Drive State College, PA 16801 Phone: 814-272-1039 STUDY SPONSOR 3M Company 3M Building 0236-01-B-10 St.

y ]-& & & & _ 0 7 % t MICROBIOS MICROTOX TOXICITY TEST TEST SUBSTANCE___________________________________________ _ Identity: Mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-203CF-X or FC-203CF. (1-Octanesulfonic acid) (CAS # 2795-39-3).

M A fl - 0794- BIODEGRADATION (BOD/COD) TEST SUBSTANCE Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-206A. (1Octanesulfonic acid) (CAS # 2795-39-3).

M 6_ 0737 MICROBIAL INHIBITION (DEHYDROGENASE ACTIVITY) TEST SUBSTANCE__________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-206A. (1Octanesulfonic acid) (CAS # 2795-39-3).

A A J2 .A 6 _ 0 2 X 3 ACUTE TOXICITY TO FISH (FATHEAD MINNOW) TEST SUBSTANCE________________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-603EF. (1Octanesulfonic acid) (CAS # 2795-39-3).

M S .& 6 0 < 3 0 ,7 MICROBIOS MICROTOX TOXICITY TEST TEST SUBSTANCE Identity: Mixture containing Perfluorooctanesulfonate; may also be referred to as PFOS, FC-95, or as a component of FC-3072. (1Octanesulfonic acid) (CAS # 2795-39-3).

NORTHERN KENTUCKY OFFICE SUITE 340 1717 DIXIE HIGHWAY COVINGTON, KENTUCKY 41011-4704 606-331-2838 513-381-2838 FAX: 513-381-6613 TAFT, STETTINIUS & HOLLISTER LLP 425 WALNUT STREET, SUITE 1800 CINCINNATI, OHIO 45202-3957 513-381-2838 FAX: 513-381-0205 www.taftlaw.com 4 R & & G - llf-lf- CLEVELAND OHIO OFFICE 3500 BP TOWER 200 PUBLIC SQUARE CLEVELAND, OHIO 44114-2302 216-241-2838 FAX. 216-241-3707 COLUMBUS, OHIO OFFICE 21 EAST STATE STREET COLUMBUS, OHIO 43215-4221 614-221-2838 FAX:614-221-2007 Ro b e r ta .

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3 Final Report Concentrations of PFOS in Fish Fillet Tissues from Largemouth Bass Collected in the Tennessee River in April 2012 Study Title Analytical Study ISO12-01-01-01: Analysis of PFOS from Tennessee River Fish - Bakers Creek Area: April 2012 Data Requirement ISO17025 Project Director Charles Young Weston Solutions, Inc.