NORTHERN KENTUCKY OFFICE SUITE 340 1717 DIXIE HIGHWAY COVINGTON, KENTUCKY 41011-4704 606-331-2838 513-381-2838 FAX: 513-381-6613 DAYTON, OHIO OFFICE SUITE 900 110 NORTH MAIN STREET DAYTON, OHIO 45402-1786 937-228-2838 FAX: 937-228-2816 R o b e r t a .

AZ.2Z 6 - 5 7 lf .lt Presented at Society of Toxicology 4&hAnnual Meeting San Diego, CA.

INTERIM REPORT #26 - Analysis of Groundwater Samples STUDY TITLE Analysis of Perfluorooctanoic Acid (PFOA) 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 January 9,2007 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.

GLP10-01-02; Interim Report 29 - Analysis of PFBS, PFHS, and PFOS in Groundwater Samples Collected at Off-Site Wells in Decatur, AL in 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 hone: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 REPORT NO.

SEVERN TRENT STL STL Chicago 2417 ond Street University Park, IL 60466 Tel: 70S 534 5200 Fax: 70S 534 5211 www.stl-inc.com SEVERN TRENT LABORATORIES ANALYTICAL REPORT JOB -NUMBER:- 244402'"' ' P r e p a r e d 'F o r : W e sto n Solutions.,...

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 ........

SEVERN TRENT LABORATORIES ANALYTICAL REPORT JOB NUMBER: 249891 Prepared For: Weston Solutions, Inc. 1400 Weston Way Building 5-2 West Chester, PA 19380-1499 Project: Confidential Decatur Attention: Jai Kesari Date: 01/03/2007 Signature Name: Richard C.

C O V M > THE DEVELOPMENT SERVICES COMPANY Sponsor: 3M St.

BACK TO MAIN Biodegradation study Report The Aerobic Biodegradation of W-EtFOSE Alcohol by the Microbial Activity Present in Municipal Wastewater Treatment Sludge Thursday, November 02, 2000 Project Number 3M Project ID: LIMS E00-2252 Pace Contract Analytical Project ID: CA058 Pace Proposal ID: 000511.1 Principal Analytical Investigator Cleston C.

APR-19-2001 11=47 SPI/UEIDMAN to o g 202 293 0005 T HE S O C I E T Y OF THE P L A S T I C S I N D U S T R Y , I N C . pi'R.l(702zr P.01/01 FACSIMILE TRANSMITTAL SHEET ~o CJl T~ Vi.}; TO: Karen Lannon / Pam Moseley COMPANY' EPA FAX NUMBER: 202.260.9555 PHONE NUMBER: 202260.2797 FROM: | i Allen C.

-f\&A6 - 1063 Guide tolde SafeHandling of Fluoropolymer Dispersions r * -.: - :) c di ro ro ro Prepared by the FLUOROPOLYMER MANUFACTURERS GROUP O cto b e r 2001 BZ-101 The Society o f th e Plastics Industry, Inc.

M zz If January 30, 2002 MEDOW12nfirar0fv.eis0icCchretoPihonnoeargmn,rftlnoCPeesnsonhy,lteMllaDmvul.at.PiiCnAcoria.noualte2PAeCr0crvo4etienv6onte0nrunoeAtli,oDgNnei.nvWacinsy.dio(Tn7o4x0i5cMs ) Fire Fighting Foam Coalition Thomas A.

NORTHERN KENTUCKY OFFICE SUITE 340 1717 DIXIE HIGHWAY COVINGTON, KENTUCKY 41011-4704 606-331-2838 513-381-2838 FAX: 513-381-6613 DAYTON, OHIO OFFICE SUITE 900 110 NORTH MAIN STREET DAYTON, OHIO 45402-1786 937-228-2838 FAX: 937-228-2816 Roberta.

3M FLUOROCHEMICAL SUBMISSIONS February, 2002 - May, 2004 INDEX OF 3M'S 2002-2004 AR-226 DOCKET SUBMISSIONS BY DATE Back to Menu April 2004 Click on Study Title to View Report April 12, 2004 Letter from Michael A.