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NORTHERN KENTUCKY OFFICE SUITE 340 1717 DIXIE 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, OHIO 45402-1786 937-228-2838 FAX: 937-228-2816 Roberta.

GLP10-01-02: Interim Report 26 - Analysis of PFBS, PFHS, and PFOS in Surface Water Samples Collected at Bert Jeffries Landfill in Decatur, AL in February 2012 Study Title Analysis of Perfluorooctane Sulfonate (PFOS), Perfluorohexane Sulfonate (PFHS) and Perfluorobutane Sulfonate (P FBS ) in G roundwater, Soil and Sedim ent fo r the 3M D ecatur Phase 3 Site-Related Monitoring Program Data Requirement EPA TSC A Good Laboratory Practice Standards 40 CFR Part 792 Study Director Jaisim ha Kesari P.E., DEE W eston Solutions, Inc. 1400 W eston W ay W est Chester, PA 19380 Phone: 610-701-3761 A u th o r Susan W olf 3M Environm ental Laboratory Interim Report Com pletion Date Date of signing Perform ing Laboratory 3M Environmental Health and Safety Operations Environmental Laboratory 3M Center, Bldg 260-05-N-17 St.

GLP10-01-02; Interim Report 30 - Analysis of PFBS, PFHS, and PFOS in Groundwater Samples Collected at Off-Site Wells on Bert Jeffries Property in Decatur, AL in April 2012 Study Title 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 P h o n e :610-701-3761 Author Susan W olf 3M Environmental Laboratory Interim Report Completion Date Date of signing Performing Laboratory 3M Environmental Health and Safety Operations Environmental Laboratory 3M Center, Bldg 260-05-N-17 St.

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3M Medical Department Study: T-6295.10 AR226-1030A003 BACK TO MAIN Analytical Report: FACT TOX-099 LRN-U2400 Study Title Oral (Stomach Tube) Developmental Toxicity Study of PFOS in Rabbits Analytical Laboratory Report Title Determination of the Concentration of Potassium Perfluorooctanesulfonate (PFOS) Fluorochemical in Rabbit Liver and Serum Specimens Data Requirement Not Applicable Author 3M Environmental Laboratory Analytical Phase Completion Date at signing Performing Laboratories Liver and Serum Extractions Liver and Serum Analyses Pace Analytical Services, Inc.

AR226-1030A027 Study Title Characterization Study of PFOS, Primary Standard - Test Control Reference #TCR-00017-046 Phase: Solubility of PFOS in Octanol Data Requirement 40 CFR 160.105(b) Author Mark E.

BACK TO MAIN Analytic Report Analysis o f PFOS in Test Organisms from the 96-Hour Static Acute Toxicity Test with the Freshwater M ussel Laboratory Report No.

BACK TO MAIN 3M Environmental Laboratory Report No.

BACK TO MAIN MULTI-CITY STUDY FIELD REPORT FOR CLEVELAND TENNESSEE AND DECATUR ALABAMA - BATTELLE DUXBURY ACTIVITIES for Project Number N100672-01 submitted to July 9,1999 Prepared by Scott C.

BACK TO MAIN Centre Analytical Laboratories, Inc. 3048 Research Drive State College, PA 16801 www.centrelab.com ^Phone: (814)231-8032 Fax: (814) 231-1253o r (814) 231-1580 Analytical Report Fluorochemical Characterization of Drinking Water Samples Mobile, Alabama (W2.151) Centre Analytical Laboratory Report No. 023-007C (Revision 1) Revision Date 3/20/01 Testing Laboratory Centre Analytical Laboratory, Inc. 3048 Research Drive State College, PA 16801 3M Environmental Laboratory Contact Kent R.

BACK TO MAIN TOXICITY TO AQUATIC PLANTS (Marine Diatom, Skeletonema costatum) TEST SUBSTANCE______________________________________ Identity: Perfluorooctanesulfonate; may also be referred to as PFOS or FC-95. (1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-, potassium salt, CAS # 2795-39-3) Remarks: Sample from 3M production lot number 217.

Taft/ Taft Stettinius & Hollister LLP 4 2 5 W alnut Street, Suite 1 8 0 0 / Cincinnati, OH 4 5 2 0 2 -3 9 5 7 / Tel: 5 1 3 .3 8 1 .2 8 3 8 / Fax: 5 1 3 .3 8 T V 0 2 0 5 /w w w .taftlaw .com C in cin n a ti/C lev e la n d /C o lu m b u s / Dayton / Indianapolis / Northern Kentucky / Phoenix/ Beijing Robert A.

A R tL 6 -c m o s s -3 PROTOCOL PFOS: A 96-HOUR TOXICITY TEST WITH THE FRESHWATER ALGA (Anabaenaflos-aquae) U.S.

Experiment No.: Conducted At: Dates Conducted: Conducted By: Reviewed By: Acute Ocular Irritation Test with T-3494 in Albino Rabbits Hm-oyy 0884EB0011 Safety Evaluation Laboratori ;* Riker Laboratories, Ine.