3 GLP10-01-02 Interim Report 05: Analysis for PFOS, PFHS and PFBS in Avenue A Soils and Sediments Collected June/Julv 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.

www.axysanalytical.com >)][( A X Y S Axys Analytical Services Ltd 2045 Mills Road West SIDN EY, BRITISH COLUMBIA, CANADA V8L 5X2 T E L 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.

GLP10-01-02; Interim Report 28 - Analysis of PFBS, PFHS, and PFOS in Groundwater Samples Collected at the Former Sludge Incorporation Area (FSIA) located in Decatur, AL, March/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.

INTERIM REPORT # 7-Analvsis of Soil Boring 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 October 27,2006 PERFORMING LABORATORY Exygen Research 3058 Research Drive State College, PA 16801 Phone: 814-272-1039 STUDY SPONSOR 3M Company 3M Building 0236-01-B-10 St.

STLS F V F R N TRENT STL Chicago 2-117 Rond Street University Park, IL 60466 Tel: 708 534 5200 Fax; 708 534 5211 www.stl-inc.com V E R N T R E N T L A B O R A T O R IE S A N A L Y T IC A L R E PO R T JOB NUMBER: 233.2 5 P r e p a r e d 'For : W e s t o n .

SEVERN T RENT STL STL Chicago 2417 Bond Street University Park, IL 6466 Tel: 7DS 534 5200 Fax: 708 534 521 1 ivivw. stl-inc. cam ANALYTICAL REPORT JOB NUMB ER; 23 3 85 9 ..Prepared For : Weston Solutions, Inc, 1400 Weston Way .

3M Environmental Laboratory Method Analysis of Potassium Perfluorooctanesulfonate or Other Fluorochemicals in Liver Extracts Using HPLC-Electrospray/Mass Spectrometry Method Number: ETS-8-7.0 Author: Lisa Clemen, Glenn Langenburg Approved By: Adoption Date: 0 Revision Date: fJfV Laboratory Manager Date Group Leader A diiArU- Technical Reviewer Date O l i n /??

mi-oioD CHRONIC TOXICITY TO THE SALTWATER MYSID TEST SUBSTANCE Identity: Perfluorooctanesulfonate; may also be referred to as PFOS or FC-95. (1-Octanesulfonic add, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-, potassium salt, CAS # 2795-39-3) Remarks: The test substance is a white powder.

i / )R O X -O I3 3 C O R N IN G Hazleton MUTAGENICITY TEST ON / T-6357 \^ \A IN AN IN VIVO MOUSE MICRONUCLEUS ASSAY FINAL REPORT AUTHOR Hemalatha Murli, Ph.D.

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ENVIRONMENTAL PHYSICAL/CHEMICAL, FATE, EFFECTS AND MONITORING STUDIES GLOBAL BIOMONITORING BACK TO COMPOUNDS STUDY TITLE Accumulation of Perfluorooctane Sulfonate and Related Fluorochemicals in Fish Tissues Accumulation of Perfluorooctane Sulfonate and Related Fluorochemicals in Mink and River Otters Perfluorooctane Sulfonate and related Fluorochemicals in Oyster, Crassostrea Virginica, From the Gulf of Mexico and Chesapeake Bay Perfluorooctane Sulfonate and Related Fluorochemicals in Fish- Eating Water Birds Accumulation of Perfluorooctane Sulfonate in Marine Mammals

BACK TO MAIN STABILITY IN WATER (HYDROLYSIS) TEST SUBSTANCE__________________ Identity: Remarks: Perfluorooctanoic acid, ammonium salt; may also be referred to as PFOA ammonium salt, Ammonium perfluorooctanoate, FC-116, FC-126, FC-169, or FC-143.

BACK TO MAIN m 'ijy i TECHNICAL REPORT SUMMARY Ootu _ 1/7/80 TO: TECHNICAL COMMUNICATIONS CENTER - 201-2CN (Im portant -- Ifreport is printed on both sides o f paper, send two copies to TCC.)

3M Medical Department Study: T-6316.5 BACK TOMAIN 3M Medical Department Study: T-6316.5 Analytical Report: FACT TO X -013 LRN-U2095 Study Title Analytical Study 2(N-Ethylperfluorooctane sulfonamido)-ethanol in Two Generation Rat Reproduction Amended Analytical Laboratory Report Determination of the Presence and Concentration of PFOS, M556, PFOSAA, and PFOSA in the Liver and PFOS, M556, PFOSAA, PFOSA, and EtFOSE-OH in the Sera of Crl:CDBR VAF/Plus Rats Exposed to EtFOSE-OH Data Requirement Not Applicable Author 3M Environmental Laboratory Study Completion Date May 31, 2001 Performing Laboratories Sera Analyses Liver Analyses 3M Environmental Laboratory Building 2-3E-09, 935 Bush Avenue St.