3 GLP10-01-02 Interim Report 15: Analysis for PFOS, PFHS and PFBS in Decatur, AL Avenue A Soils and Sediments Collected January 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 West Chester, PA 19380 Phone: 610-701-3761 Principal Analytical Investigator Cleston C.

www.axysanalytical.com AXYS Axys Analytical Services Ltd 2045 Mills Road West SID N EY, BRITISH COLUMBIA, CANADA V8L 5X2 T E L 250-655-5800 FAX250-655-5811 www .axysanalytical.com AXYS Client No.: Client Address: 4673 Cardno ENTRIX 4295 Okemos Road, Suite 101 Okemos, MI, US, 48864 The AXYS contact for these data is Kalai Pillay.

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t o _ I/ Oscar Hernandez 09/27/02 02:32 PM To: Vanessa Vu/DC/USEPA/US@EPA cc: Robert Flaak/DC/USEPA/US@EPA, Charles Auer/DC/USEPA/US@EPA, Margaret Schnelder/DC/USEPA/US@EPA, Seed.Jennifer@EPAMAIL.EPA.GOV@EPA, Barbara Leczynski/DC/USEPA/US@EPA, Priscilla Flattery, Robert Perlis/DC/USEPA/US@EPA Subject: SAB request Vanessa, attached is a request for an SAB review of a preliminary risk assessment of Perfluorooctanoic acid (PFOA).

AR226-1392 CC: Manufacturing Superintendents Process Superintendents Maintenance Superintendents ' Chief Chemist Research Superintendents Power & Services Superintendent J .

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www.axysanalytical.com >)][( A X Y S Axys Analytical Services Ltd 2045 Mills Road West SIDNEY, BRITISH COLUMBIA, CANADA V8L 5X2 TEL 250-655-5800 FAX 250-655-5811 www.axysanalytical.com AXYS Client No.: Client Address: 4731 Weston Solutions Inc. 1400 Weston Way West Chester, PA, US, 19380 The AXYS contact for these data is Candice Navaroli.

Unit Code 8308 1/14/99 2:54PM UROBILINOGEN, 48-HOUR, FECES General Information FEE: $122.70 LABO RATO RY AREA: Porphyrin.32/HC25 A N A LYTIC TIM E: 1 day D A Y (S ) T E S T SE T UP: Monday through Saturday TIM E O F DAY: Continuously LABORATORY HOURS: M A XIM U M LAB TIM E: 3 days C O M M EN TS A ND O TH ER REJECTION: -C V 6% .

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f\RM >-o\G\ SUMMARY OF THE EFFECTS OF PFC's ON MITOCHONDRIAL BIOENERGETICS IN VITRO The attached diagram describes the metabolic relationship for the various PFC's that were selected for inclusion in this study.

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