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P-1 Taft/ Taft Stettinius & Hollister LLP eet, Suite 1800 /Cincinnati, Ohio 45202-395/ / lei: 513.381.2838 /Fax 513 381 0205 / www.taftlaw.com Cincinnati / Columbus / Cleveland / Dayton / Covington Robert A.

SEVERN TRENT STL STL Chicago 2417 Bond Slreel University Park, IL 50465 Tel: 70S 534 5200 Fax: 708 534 5211 www.stl-inc.com SEVERN TRENT LABORATORIES ANALYTICAL REPORT JOB NUMBER; 232883 Prepared For: Weston Solutions/ Inc: 1400 W e s t o n Way .

A (L & & G - 0 7 / / ACUTE AQUATIC TOXICITY TEST SUBSTANCE________________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-203. (1Octanesulfonic acid) (CAS # 2795-39-3).

b4> NOTE TO FILE - OPPTS 50639 October 23, 2000 FROM: Karen Lannon SUBJECT: Revised PFOS Hazard Assessment M S A 6 _ 03lf-& Attached is a revised PFOS Hazard Assessment.

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A C U T E T O X IC IT Y T O F ISH (FA T H EA D M IN N O W ) T E S T S U B S T A N C E __________________________________________________ Identity: Mixture containing perfluorooctanesulfonate which m ay also be referred to a s P F O S , FC-95, or a s a component of FC-3003. (1Octanesulfonic acid) (C A S # 2795-39-3).

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Environmental Working Group || Policy Memo: DuPont, Teflon, Water, Contamination, ...

NORTHERN KENTUCKY OFFICE SUITE 340 1717 OKIE HIGHWAY COVINGTON, KENTUCKY 41011-4704 606-331-2838 513-381-2838 FAX: 513-381-6613 DAYTON, OHIO OFFICE SUITE 900 110 NORTH MAIN STREET DAYTON.

3 GLP10-01-02 Interim Report 03: Analysis for PFOS, PFHS and PFBS in Decatur, AL Wetlands Edge Environmental Center (WEEC) Soils and Sediments Collected June/July 2010 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 Principle Analytical Investigator Cleston C.

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.