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IM Genera Offices SMt PCaeln,teMrN S5144-1000 $173 1010 October 31,2009 Submitted Via E-Mail Agency for Toxic Substancaends Disease Registry DivisionofToxicology and Environmental Medicine 1600 Clifton Road NE Mail Stop F-62 Atlanta, GA 30333 Re: Draft Toxicological Profile for Perfluoroalkyls Dear Sir/Madam: 3M is responditnog the Agency for Toxic Substances and Disease Registry'sdraft Toxicological Profile for perfluoroalkyls.

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TC ARARG -- 1362 A Pharmacokinetic Study of Potassium Perfluorooctanoate in the Cynomolgus Monkey Southern Research Institute Study ID: 9921.4 January 14, 2003 001650 Final Report on A Pharmacokinetic Study of Potassium Perfluorooctanoate in the Cynomolgus Monkey To: 3M Corporation P.O.

ARRRG -- 1367 'UDR-TR-03-00044 Final Report - LaboratoryScale Thermal Degradation of Perfluoro-Octanyl Sulfonate and Related Substances June 2003 002039 Final Report Laboratory-Scale Thermal Degradation of Perfluoro-Octanyl Sulfonate and Related Precursors "Thisreportcoversthe efforts perf byo thr eUnm iveersidtyofDaytonResearch Institute (UDR), EnviSrcieoncenanmdEneginneeritngGaroulp, Dayton,OH 454690132,duringtheperiodfromMarch2001toDecember2002.Thework wasconducted under aLetterofAgreementdatedMarch20,2001.

Telomer Research Program AR226-1422 Report Title: 1-Decanol, 3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-heptadecafluoroAcute Immobilisation Test (48h) to Daphnia magna STRAUS Limit Test with the Saturated Solution RECEIVED OPPT NCIC 2003 July 18 12:00PM Author(s): Martina Noack Contractor: Dr.

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Corporate Occupaiaaa Mcine S3M eTneE, BEuildLing Y220-305 AR126-0470 5173 5060 Fn SIM > An Evidemiotogic Mortaity Study of Employees at the Chemolite Pant "This isthe original retrospective cohort mortality reportof employees at the Chemolite Plant in Cottage Grove, Minnesota conducted by Schuman and Mandelofthe University ofMinnesota.

) " CAS Number 24448-09-7 3M Company ARRR6 _0SE> 1 Voluntary Use and Exposure Information Profile N-methyl perfluorooctanesulfonamido ethanol L CHEMICAL IDENTIFICATION Chemical Name: N-methyl perfluorooctanesulfonamido ethanol (MeFOSE) `CAS Number: 24448-09-7 Im COMPANY IDENTIFICATION Company Name: 3M Site Location: 22614 Route 84 North Cordova, IL 61242 10746 Innovation Road Cottage Grove, MN 55016 Technical Contact: Phone: Address: 1400 State Docks Road Decatur, AL 35601 W.A.