A R 2 2 J6 -O I* 4 ATTACHMENT TO LETTER TO C.

SRPT THE DEVELOPMENT SERVICES COMPANY FINAL REPORT L5178Y TK +/' MOUSE LYMPHOMA FORWARD MUTATION ASSAY WITH A CONFIRMATORY ASSAY WITH N-EtFOSE T-6316 AUTHOR Maria A.

3M Medical Department Study: T-6316.1 3M Medical Department Study: T-6316.1 Analytical Report: FACT-TOX-003 LRN-U2104 Analytical Report: FACT TOX-003 LRN-U2104 Study Title 104-Week Dietary Carcinogenicity Study with Narrow Range N-Ethyl Perfluorooctanesulfonamido Ethanol in Rats Analytical Laboratory Report Title Determination of the Presence and Concentration of PFOS, PFOSA, PFOSAA, EtFOSE-OH, M556, and PFOSEA in Serum and Liver Samples of Crl:CD(SD) IGS BR Rats Exposed to N-Ethyl Perfluorooctanesulfonamido Ethanol Data Requirement Not Applicable Author 3M Environmental Laboratory Study Completion Date June 06, 2001 Performing Laboratories Liver and Serum Analyses '1 3M Environmental Laboratory Building 2-3E-09, 935 Bush Avenue St.

Attachments to Letter to C.

A t 2 2 b - O '/ SOIL ADSORPTION - REVISED TEST SUBSTANCE_______________________________ _____________ Id e n tity : Perfluorooctanesulfonate; may also be referred to as PFOS or FC -95. (1Octanesulfonic acid, 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 test substance is a white powder.

3M Specialty Materials f January 3, 2003 3M Center St.

A R 2 .6 - \ 0 H - M iW> CCAS t r,n f ntrr jo r .U m lyaii .Sciences Analytical Report William P.

September 10, 2003 Document Control Office (D CO ) Office of Pollution Prevention and To xics (O P P T ) US Environmental Protection Agency EP A East, Room 6428 1201 Constitution Avenue, NW Washington, DC 20460 A ISIi 1 ^ ^ 1S a M .

71 pp Ann K.

3M Specialty Materials 3M Center St.

Benchm ark Doses for Liver Tumors in Sprague Dawley Rats fed Perfluorooctane Sulfonic Acid Potassium Salt (PFOS) David W.

f y i - o r o o - /3 7 < f Attachments to Letter to C.

f porporate Toxicology and Regulatory Services 3rv, e lUilding 0220-02-E-02 St.

AR226-2255 Chris E Shoop 02/08/2002 03:23 PM To: Debbie J Mulrooney/AE/DuPont@DuPont cc: Robert F Pinchot/DEV/AE/DuPont@DuPont, Stephen J Gissy/AE/DuPont@ DuPont, Roger J Zipfel/AE/DuPont@DuPont S ub ject Re: C8 2001 Emissions O Debbie, I have calculated emissions for 2001 but the emitted amounts are not broken out by emission point.

AR226-2513 l Andrew S Harttcn 04/01/2002 11:08 AM T o : Hidetaka Hiromatsu/PO/DuPont@DuPont c c : David M Rurak/AE/DuPont@ DuPont, Seiichi Tanaka/PO/DuPont@ DuPont, V ic E Kleinfelter/AE/DuPor>t@DuPont, Etsuo Takenouji/DuPont@DuPont, Koichi lnagaki/PO/DuPont@DuPont, Kazuaki Suzuki/PO/DuPont@ DuPont, Katsunosuke Kitagawa/PO/DuPont@ DuPont, Kazuaki Yokovama/PO/DuPorrt@DuPont, Susan L Skrotsky/AE/DuPont@ DuPont, Shikiho itaya/PO/DuPont@ DuPorrt, George H Senkler_Jr/AE/DuPont@ DuPorrt, Diane R Shom per/AE/DuPont@ DuPont, Ta-W ei Fu/SE/DuPont@ DuPont, O scar T Garza/AE/DuPont@ DuPont, Isidoros J Zanikos/AE/DuPont@ DuPont Sub ject: R e: A PFO v s .