Jean B.

P-1 Taft/faZZ(e>-3 1 ^ Taft Stettinius & Hollister LLP 4 25 W alnut Street.

f January 30, 2002 Mr.

INTERIM REPORT # 1-Analvsis of Public Water 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 March 8, 2005 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.

SEVERN TRENT LABORATORIES ANALYTICAL REPORT JOB NUMBER: 244434 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: 03/06/2006 Signature Name: Richard C.

06/15/2000 ENVIRONMENTAL LABORATORY ARCHIVED FINAL REPORT B A C K TO MAIN LAB REQUEST NO.

3M General Offices 3M Center St.

Corporate Health Physics Corporate Industrial Hygiene & Ergonomics Corporate Occupational Medicine Corporate Toxicology 3M Medical Department 3M Center, Building 220-2E-02 PO Box 33220 ' St.

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AMG - iiH-7 DuPont Fluorotelomer Product Stewardship Update 25 Nov. 2002 Presented to The United States Environmental Protection Agency November 25, 2002 z?

3M Katherine E Reed, Ph.D.

M A & . 6 _ \2> 6C March 31, 2003 Regular Mail The Honorable Stephen L.

R a - H - I3S"^ Page 1 FINAL REPORT Epidemiology, 220-3W-05 Medical Department 3M Company St.

Telom er Research Program AR226-1422 Report Title: 1-Decanol, 3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-heptadecafluoroAcute Immobilisation Test (48h) to Daphnia magna STRAUS Limit Test with the Saturated Solution RECEIVED OPPT NCIC 2003 July 18 12:00PM Author(s): Martina Noack Contractor: Dr.