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3 GLP10-01-02 Interim Report 20: Analysis for PFOS, PFHS and PFBS in Soils Collected from BP Property Well Locations in July 2011 Study Title 3M Environmental Laboratory Analytical Protocol GLP-10-01-02: Analysis of Perfluorooctane Sulfonate (PFOS), Perfluorohexane Sulfonate (PFHS) and Perfluorobutane Sulfonate (PFBS) in Groundwater, Soil and Sediment for the 3M Decatur Phase 3 Site-Related Monitoring Program Data Requirement EPA TSCA Good Laboratory Practice Standards 40 CFR Part 792 Study Director Jaisimha Kesari P.E., DEE Weston Solutions, Inc. 1400 Weston Way W est Chester, PA 19380 Phone: 610-701-3761 Principal Analytical Investigator Cleston C.

STLS E V E R N TRENI STL Chicago 2417 Bond Street University Park, It 60466 Tel: 70B 5 3 4 5 2 0 0 Fax: 7 0 8 5 3 4 5 2 1 1 www.

CHAIN OF CUSTODY / ANALYSIS REQUEST FORM Tuscaloosa Testing Laboratory PAGE 1 o f j g T: 256-353-2910 PROJECT INFORMATION Client: Weston Solutions, Inc. 1400 Weston Way, Bldg. 5-2 West Chester, PA 19380 T: 610-701-3761 F: 610-701-7401 Project Manager: Jai Kesari emcail: j.kesari@westonsolutions.com Project Name: Reference No: Decatur, AL FSIA GP Investigation 02181-129-081-0001 1 ANALYSES REQUESTED Sampler: T.

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/W .S i6-067S Centre Analytical Laboratories, Inc 3 04 8 Research Drive Phone: (814) 231-8032 State C ollege, PA 16801 Fax: (814) 231-1253 or (814) 231-1580 Analytical Report Fluorocheraicai Characterization of Surface Water Samples Port St.

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SEVERN TRENT STL STL Chicago 241 / Bond Street University Park, IL 6 0 4 6 6 Tel: 78 5 3 4 5 2 0 0 Fax: 70S 5 3 4 5211 www.stl-inc.com SEVERN TR ENT L A B O R A I:o r i e iW :\, JOB NUMBER: 232676 P r e p a r e d.

BACK TO MAIN AR226-1030A012 Study Title Solubility Study of Perfluorooctanesulfonate (PFOS), SD-018 and Perfluorooctanesulfonamide (FOSA), SE-027 in Male/Female Human Urine Data Requirement 40 CFR 160.105(b) Author Mark E.

BACK TO MAIN Study Title Characterization Study of PFOA (lot #332), Primary Standard - Test Control Reference #TCR-99030-030 Phase: Solubility Determination Data Requirement 40 CFR 160.105(b) Author Mark E.