3M Specialty Materials June 28, 2000 c f yr - - 13M Center S65t.1P7a3u3l, M11N0055144-1000 0300 M 22.6- 062% r&(-5s>, m-o ---aonmmo ---F3aCo coom VIA EXPRESS MAIL Dr.

ar. * a 6 _ o6gs TOXICITY TO AQUATIC PLANTS TEST SUBSTANCE________________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95 or as a component of FC-201AF. (1Octanesulfonic acid) (CAS # 2795-39-3).

ar &A6- 0 7 og ACTIVATED SLUDGE RESPIRATION INHIBITION TEST TEST SUBSTANCE________________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-201F-X. (1Octanesulfonic acid) (CAS # 2795-39-3).

M&3L& - 07/9 ACUTE TOXICITY TO AQUATIC INVERTEBRATES (DAPHNIA MAGNA) TEST-SUBSTANCE_______________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-203. ( 1 Octanesulfonic acid) (CAS # 2795-39-3).

4 K -2 2 6 _ Oi2Z BIODEGRADATION (BOD/COD) TEST SUBSTANCE_______________________________________ ____ Identity: Mixture containing perfluorooctanesulfonate which may also be referred to as PFOS, FC-95, or as a component of FC-3003. (1Octanesulfonic acid) (CAS # 2795-39-3).

M Sl9l6 _ 0 9 2 .6 SUMMARY FOR FOAMING STUDIES DONE ON VARIOUS AFFF PRODUCTS TEST SUBSTANCE_______________________________________________ Identity: Mixtures containing perfluorooctanesulfonate, which may also be referred to as PFOS or FC-95 or as a component of AFFF products. (1-Octanesulfonic add, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-, potassium salt, CAS # 2795-39-3) Rem arks field: compositions.

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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.

3M Environmental Laboratory Final Project Report Amendment Project number: E12-0849 Project title: "Analysis of PFOS, PFHS, PFBS and PFOA in Soils from Decatur, AL in December 2012" Project Lead: Cleston Lange Amendment date: 2/13/2013 Am endm ent number: 01 This amendment modifies the following portion of the final report: 1) Correction to the title of Table 1 2) Update the title page to refer to the amended report as revision 1 3) Corrections to Table 11 and 12 based on Weston comments.

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 .

Centre Analytical Laboratories, Enc. 3048 Research Drive Phone: (814) 231-8032 State College, PA 16801 Fax: (814) 231-1253 or (814) 231-1580 Analytical Report Fluorochemical Characterization of Drinking Water Samples Columbus, GA (W2336) Centre Analytical Laboratory Report No. 023-007F Testing Laboratory Centre Analytical Laboratory, Inc. 3048 Research Drive State College, PA 16801 3M Environmental Laboratory Contact Kent R.

Attachments to Letter to C.

Centre Analytical Laboratories, Inc. 3 04 8 Research Drive Phone: (814) 231-8032 State College, PA 16801 Fax: (814) 231-1253 or (814) 231-1580 Analytical Report Fluorochemical Characterization of Surface Water Samples Pensacola, Fl (W2176) Centre Analytical Laboratory Report No. 023-014C Testing Laboratory Centre Analytical Laboratory, Inc. 3048 Research Drive State College, PA 16801 3M Environmental Laboratory Contact Kent R.

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