Ak.H.a.6 -0 6 7 6 Centre Analytical Laboratories.

Dyneon Sanitized Letter - / * * < * _ l7 April 8, 2003 3 2 (> The Honorable Charles M.

3M Company Page 1 of 63 FINAL REPORT Epidemiology, 220-3W-05 Medical Department 3M Company St.

89080000216 Re: TSCA 8(e) Substantial Risk Notice: Supplemental to Docket No. 8EHQ-0598-373; Sulfonate-based and Carboxylate-based Fluorochemicals To whom it may concern, 3M is submitting this notice to supplement its previous submissions on sulfonyl-based and carboxylate-based fluorochemicals.

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.

GLP10-01-02; Amended Interim Report 14 Analysis of PFBS, PFHS, and PFOS in Groundwater BFI Morris Farm Landfill - MArch 2011 GLP10-01-02: Interim Report 14 - Analysis of PFBS.

3M ENVIRONMENTAL LABORATORY REPORT NO.

INTERIM REPORT # 2-AnaIvsis of Surface Water 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 March 22, 2005 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.

SEVERN TRENT STL STL Chicago 2417 Bond Street University Park, IL 60466 Tel: 70S 534 5200 Fax: 70S 534 5211 www.stf-inc.com SEVERN TRENT LABORATORIES ANALYTICAL REPORT JOB- NUMBER: 244550 Prepared For: Weston Solutions, Inc. 1400 Weston Way Building 5-2 West Chester, PA 19380-1499' Project: Confidential Decatur. - F C i I n v e s t i g a t i o n Attention: Sue Stefanosky Bate: 03/09/2006 Tille: Project Manager E - M a i l : rwright@stl-i n e .com This Report Contains Leaders in Environmental Testing Date ........

iTff 3M 3>1 G eneral u n ic es C; r !

AR226-1030A040 BACK TO MAIN Biodegradation study Report The 35-Day Aerobic Biodegradation Study of PFOS Thursday, March 29, 2001 Project Number 3M Project ID: LIMS E01-0444 Pace Contract Analytical Project ID: CA104 Study Director Cleston C.

BACK TO MAIN SOLUBILITY IN PURE WATER, METHANOL, AND ACETONE - SHAKE FLASK AND COLUMN ELUTION METHODS TEST SUBSTANCE_______________________________________________ Identity: N-ethylperfluorooctane sulfonamidoethanol; may also be referred to as N-EtFOSE Alcohol, N-EtFOSE OH, or FM-3422. (1 -Octanesulfonamide, N-ethyl-1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-N-(2-hydroxyethyl)-, Ca S # 1691-99-2) Remarks: Material is a white, waxy solid.

3M General Offices U&S1 f f 3M May 4, 2000 3M Center St.

3M Specialty Materials June 15, 2000 3M Center St.

Mary Dominiak/DC/USEPA/US@EPA o r 02/ 27/ 2 0 0 1 0 4 :21:35 PM To: "Larsen, Don" < DLarsen@CGAIaska.USCG.mil> cc: Doug.Dierdorf@mlq.afrl.af.mil, NCIC OPPT/DC/USEPA/US@EPA Subject: AR226: AFFF and Perfluorooctyl Sulfonates Dear Mr.