3M General Offices 3M Center St.

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P-1 "McCrea, Deborah" <mccrea@taftlaw.com> 10/30/2009 12:15PM To NCIC OPPT@EPA RfTF!

INTERIM REPORT #11 Analysis of Public Water.

INTERIM REPORT #19 - Analysis of Ground 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 19,2007 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 E V E R N TRENT STL Chicago 2 4 1 7 Bond Street University Park, IL 6 0 4 66 Tel: 70 534 5200 Fax; 708 534 5211 www.stl-inc.com SEVERN TRENT LABORATORIES ANALYTICAL ..JOB N U M B E R : 2 3 3 5 0 6 W e e t o n S o 111tiiono ;y;;;ilRt.

STLS E V E R N TRENT STL Chicago 2417 Bond Street University Park, IL 60466 Tel: 708 534 5200 Fax: 708 534 5211 mvw.sf/-/ni:.com S ig n a tu re Name : Rij^yCrrl C , Wright Title: Pt o jecL Manager E-Mail : rwright@st.l- inc .com Thi.s Report Contains Leaders in F.nvironmenta!

N-EtFOSA Acute Toxicity - / 000466 Acute Oral Toxicity Screen with T-306700C in Albino Bats i No.

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).

M AA6 _ O7/-S' ACUTE TO XIC ITY TO AQUATIC INVERTEBRATES (DAPHNIA MAGNA) TEST SUBSTANCE________________________________________________ Identity: A mixture containing perfluorooctanesulfonate; may also be referred to as PFOS, FC-95, or as a component of FC-203C and L-5440. (1-Octanesulfonicacid, 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: The 3M production lot number was 501.

A A J2 .A 6 _ 0 2 X 3 ACUTE TOXICITY TO FISH (FATHEAD MINNOW) TEST SUBSTANCE________________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-603EF. (1Octanesulfonic acid) (CAS # 2795-39-3).

BOILING POINT TEST SUBSTANCE Id e n tity: Perfluorooctanesulfonate; may also be referred to as PFOS or FC-95. (1-O ctanesulfonicacid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-, potassium salt, CAS # 2795-39-3) Rem arks: Testing was not conducted.

GLP10-01-02; Interim Report 13 Analysis of PFBS, PFHS and PFOS in Groundwater Samples Morgan County Landfill, Decatur, AL - November 2010 GLP10-01-02.

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.

3M ENVIRONMENTAL LABORATORY REPORT NO.