fifi 8.3.6 _ 0 6 S' PFOS Pharmacokinetic - / 000113 AN INVESTIGATION OF THE EFFECTS OF FLUOROCARBONS ON LIVER FATTY ACID-BINDING PROTEIN.

A R & A & - 0700 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-201AF. (1Octanesulfonic acid) (CAS # 2795-39-3).

AR. - 0 7 & f ACUTE TOXICITY TO AQUATIC INVERTEBRATES (DAPHNIA MAGNA) TEST SUBSTANCE________________________________________________ Identity: Mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-203CF-X or FC-203CF. (1-Octanesulfonic acid) (CAS # 2795-39-3).

M S ia -G - * 1 9 BIODEGRADATION (BOD/COD) TEST SUBSTANCE_______________________________________ __ Identity: A mixture containing perfluorooctanesulfonate; may also be referred to as PFOS, FC-95, or as a component of FC-206CF or FC-206CF-X. (1-Octanesulfonic acid) (CAS # 2795-39-3).

The Boeing CompanyR AX& - 06 9-3 Washington, DC FACSIMILE LEAD SHEET Please Check One: ___ Destroy Copy X Sender Will PickUp Date: October 10. 2000 No. of Pages LEAD +_4 Time Sent __ __________ To Charles M A uer___________ _________ Company US Environmental Protection Agency Bldg. ___________ Dept. ___________ City________________ State ___ _________________ Phone No.____________________________ _______ ___ Fax Phone No. (202) 260-8168____________ Check Phone No. __________________________ Special Instructions: From: Matthew C.

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-fT f^A fLG 106/ *rr Monitoring PerRuorinated Surfactants in Biota and Surface Water Sam ples Following an Accidental Release of Fire-Fighting Foam into Etobicoke Creek C H E R Y L A.

< BIO CO NCENTRATIO N - R EVISED AR2.3.G- IIO S TEST SUBSTANCE ____________________________________________ Identity: Perfluorooctanesulfonate; may also be referred to as PFOS or FC-95. (1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-, potassium salt, CAS # 2795-39-3) Remarks: Sample from 3M production lot number 217.

^ R5 G_ M-I Telomer Research Program (TRP) Update Presented to U.S.

NORTHERN KENTUCKY OFFICE SUITE 340 1717 DIXIE HIGHWAY COVINGTON, KENTUCKY 41011-4704 606-331-2838 513-381-2838 FAX: 513-381-6613 TAFT, STETTINIUS & HOLLISTER LLP 425 WALNUT STREET, SUITE 1800 CINCINNATI, OHIO 45202-3957 513-381-2838 FAX: 513-381-0205 www.taftlaw.com 4 R & & G - llf-lf- CLEVELAND OHIO OFFICE 3500 BP TOWER 200 PUBLIC SQUARE CLEVELAND, OHIO 44114-2302 216-241-2838 FAX. 216-241-3707 COLUMBUS, OHIO OFFICE 21 EAST STATE STREET COLUMBUS, OHIO 43215-4221 614-221-2838 FAX:614-221-2007 Ro b e r ta .

AR226-1387 M 9 A 6 - IS 7 W ilm in g to n , Dela w a re 19898 POUYM ER W O O U C T S DEPARTM ENT Cx P RiMENTAU station PERSONAL AND CONFIDENTIAL May 19, 1981 TO: DR.

0m DuPont Engineering I February 5, 2003 AR226-1415 DuPont Engineering Barley Mill Plaza - Bldg. 27 Lancaster Pike & Rte. 141 Wilmington, DE 19805 David P.

; 9 pp 3M 3M General Offices Lm K n 55144-ioco 612 733 1110 AR226-1541 - 1003 - l RECEIVER oppt cm : 2003 OCT 2 9 A H i h 01 Bv Courier October 28, 2003 Document Processing Center - CBIC (7407M) 'hh Room 6428 East / Phone 202-564-8940 Attn: TSCA Section 8(e) Coordinator Office o f Pollution Prevention and Toxics US Environmental Protection Agency 1201 Constitution Avenue NW Washington DC 20460-0001 8 EHQ 0 y RE: TSCA 8(E) SUBSTANTIAL RISK NOTICE ON: 1-Butanesulfonamide, 1,1,2,2,3,3,4,4,4-nonafluoro-n-methyl ('N-MePFBA') [CAS 68298-12-4] 63 Dear Sir/Madam: 3M has received preliminary data for a combined repeated dose toxicity study with a reproduction/developmental toxicity screening test in rats conducted with a chemical intermediate, 1-Butanesulfonamide, 1,1,2,2,3,3,4,4,4-nonafluoro-n-methyl [CAS 68298-12-4] (N-MePFBA) indicating reproductive and possible neurotoxic effects.

Enclosure 2 raceAnalyFiteilcdaSelrvices Divisum Pace Analytical Services, Inc. 1700 Elm Street, Suite 200 Minneapolis, MN 55414 Phone: 612.607.1700 Fax: 612.607.6444 3M 3M Multi-city Food Study DecePmrobjeecr t4D-8at,e:2000 Prepared by: Pace Analytical Services, Inc.

Wildlife International.