Final Report Mortality of Employees of an Ammonium Perfluorooctanoate Production Facility Jessica I.

V January 9, 2009 Via Federal Express Document Processing Center (Mail Code 7407M) Room 6428 Attention: 8(e) Coordinator Office of Pollution Prevention and Toxics U.S.

Taft Stettinius & Hollister LLP 425 Walnut Street, Suite 1800/ Cincinnati, OH 45202 3957 / Tel: 513.381.2838 / Fax: 513.381.0205/ www.taftlaw.com Cincinnati / Cleveland / Columbus / Dayton / Indianapolis / Northern Kentucky / Phoenix / Beijing R5b1iolo3bt.t3e@r57tta.A9ft6.la3Bw8i.lcootmt March 20, 2009 mfi^si8z7Y *y TSCA Confidential Business Information Center (7407M) EU12P.S0A.0EEPnaevsnitrno-snRymloveoanmntiaa6l4AP2vr8eo,nteAucettt,ino:NnSWAegcetionncy8(e) & FYI Washington, DC 20460-0001 !

"McCrea, Deborah" <mccrea@taftlaw.com> 05/20/2010 01:59 PM P-1 3 X fc 6 ) To NCIC OPPT@EPA cc "Bilott, Robert A."

AH A56 - 0730 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-206 or L3243. (1-Octanesulfonic acid) (CAS # 2795-39-3).

A R &S.6 _ O W BIODEGRADATION (BOD/COD) T E S T SU BSTAN CE___________________________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFO S, FC-95, or as a component of FC-3041. (1Octanesulfonic acid) (C A S # 2795-39-3).

M <256 _ 0 9 1 3 MICROBIOS MICROTOX TO XICITY TEST TEST SUBSTANCE_______________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FX-3103. (1Octanesulfonic acid) (CAS # 2795-39-3).

Ms.&.

RECEIVED 0PPTNCIC P Afisa. 6 - H-QS DuPont Haskell Laboratory for Health and Environmental Sciences Elkton Road, P.0.

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3M ENVIRONMENTAL LABORATORY REPORT NO.

G L P 1 0 -0 1 -0 2 ; In te r im R e p o r t 2 7 - A n a ly s is o f P F B S , P F H S , a n d P F O S in G r o u n d w a t e r S a m p l e s C o l l e c t e d f r o m D e c a t u r , A L , 1 st Q u a r t e r 2 0 1 2 Study Title Analysis of Perfluorooctane Sulfonate (PFOS), Perfluorohexane Sulfonate (PFHS) and Perfluorobutane Sulfonate (PFBS) in Groundwater, Soil and Sedim ent for the 3M Decatur 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 S olutions, 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 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.

INTERIM REPORT #27 - Analysis of Groundwater 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 February 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.

SEVERN TRENT LABORATORIES ANALYTICAL REPORT JOB NUMBER: 244435 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: 03/06/2006 Signature Name: Richard C.