3M ENVIRONMENTAL LABORATORY REPORT NO.

INTERIM REPORT # 6 - Analysis of Liver and Serum 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 April 23, 2008 PERFORMING LABORATORY MPI Research, Inc. 3058 Research Drive State College, PA 16801 Phone: 814-272-1039 STUDY SPONSOR 3M Company 3M Building 0236-01-B-10 St.

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3M Manufacturing Facilities Analysis of Alfalfa Harvested from 3M Cordova, Illinois Plant Facility BACK TO MAIN Executive Summary 3M Environmental Laboratory June 21, 2001 In the fall of 2000, samples of alfalfa being grown on the 3M Cordova Plant (Cordova, Illinois) property were collected by plant personnel.

ENVIRONMENTAL PHYSICAL/CHEMICAL, FATE, EFFECTS AND MONITORING STUDIES Potassium Decafluoro(pentafluoroethyl)cyclohexanesulfonate back to compounds STUDY TITLE Environmental FateandTransport Ready biodegradation of FC-98 (BO D /C O D ) Ready biodegradation of FC-98 (BO D /C O D ) Ecotoxicity Elements 96-H our acute static toxicity to fathead m innow - FC-98 96-H our acute static toxicity to fathead m innow - FC-98 Toxicity to activated sludge - FC-98 LABORATORY OR DATE AUTHOR COMPLETED TYPE 3M Environm ental Lab 3M Environm ental Lab 9/4/72 7/14/77 Robust summary, copy of laboratory data sum m ary Robust summary, copy of laboratory data sum m ary 3M Environm ental Lab 3M Environm ental Lab 3M Environm ental Lab 1/17/75 8/26/77 3/11/80 Robust sum m ary, copies of raw data sheets Robust sum m ary, copies of raw data sheets Robust sum m ary, copies of raw data sheets

3M Environmental Laboratory AR116- ooz^ k) M ethod Analysis of Potassium Perfluorooctanesulfonate or O ther Fluorochemical Compounds in Urine E xtracts U sing H PL C -E lectrospray/M ass Spectrometry/M ass Spectrom etry Method Number: ETS-8-97.0 Adoption Date: Author: Lisa Clemen, Robert Wynne, Glenn Langenburg Revision Date: Approved By: Laboratory Manager Group Leader ------ _ 7 / u /y 5 Date f/Z-37# Date - A C iu m -____________________ ______________________ Technical Reviewer Date 1.0 Scope and Application_________________________________________________ 1.1 Scope: This method describes the analysis of urine extracts for fluorochemicals using HPLC-electrospray/mass spectrometry. 1.2 Applicable Compounds: Fluorochemicals or other ionizable compounds. 1.3 Matrices: Human, rat, and monkey urine, or other fluids as designated in the validation report.

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/1IUX-0M7 ACUTE TOXICITY TO AQUATIC PLANTS (ALGAE) TEST SUBSTANCE Identity: Perfluorooctanesulfonylamido(ethyl)acetate; may also be referred to as PFOSAA, FC-128 or as the major component of FC-127, FC-129, FC-109, FC-109-X or R1904.

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