AR226-1307-6 HHaesalktehlalnLdaboErnavtiorroynmfeonrtal Sciences 1090 Elkton Road Newark, DE 19714.

3M EnvironmentaLlaboratory FinalReport-AnalyticaSltudy Single-DosDeermalAbsorption/ToxiciStyudyofT-6052 inRabbits In-VivoStudyReferenceNumber: HWI#6329-135 StudyNumber: AMDT-020795.1 TestSubstance:FC-120(T-6052) Name and AddressofSponsor: 3M SCD Division 367 Grove Street St.Pau'1,MN 55106 Name and Address of TestingFacility: 3M Environmental Technology & Services 935 Bush Avenue St.Paul,MN 55106 Method Numbers AMDT-M-1-0, AMDT-M-2-0, AMDT-M4-0, AMDT-M-5-0, AMDT-M-8-0, AMDT-M-14-0, and Revisions: Thermal Extractionof Fluorideby Means of a Modified Dohrrnann DX2000 OrganicHalideAnalyzer-Liver FluorideMeasurement by Means of an Orion EA940 Expandable Ion Analyzer Extractionof Fluorochemicalsfrom RabbitLiver Analysisof RabbitLiverExtractforFluorochemicalsUsing ElectrosprayMass Spectrometry Analysisof FluorideUsing the SkalarSegmented Flow Analyzer with Ion SelectiveElectrode Thermal Extractionof Fluorideby Means of a Modified Dohrmann DX2000 Organic HalideAnalyzer-Serum InitiationDate: See attachedprotocol Author: James D.

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 .

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.

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.

PERFLUOROOCTANESULFONATE, POTASSIUM SALT (PFOS): A 96-HOUR STATIC-RENEWAL ACUTE TOXICITY TEST WITH THE SHEEPSHEAD MINNOW (Cyprinodon variegatus) FINAL REPORT WILDLIFE INTERNATIONAL, LTD.

62# 3M General Offices f> 7 - 0500 1313M Center St.

^ 226- 02/6 Attachments to Letter to C.

3M ENVIRONMENTAL LABORATORY REPORT NO.

SEVERN TRENT LABORATORIES ANALYTICAL REPORT JOB NUMBER: 245986 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: 05/05/2006 Signature Name: Richard C.

BACK TO MAIN Ecotox Studies - PFOS Background Screen in Selected Wildlife International, Ltd.

P-1 3M Study 06-375 Substantiation Questions TSCA SANITIZED MTDID 6675 AZZU-3Q2.it 1.