6lef Hs Ee ARARG - 1247 : 3M February 13, 2003 Document Control Office (DCO) OUfSfiEcneovifroPnomlleunttiaoln PPrroetveecnttiioonnAagnednTcoyxics EPA East, Room 6428 1201 Constitution Avenue, NW Washington, DC 20460 (OPPT) VIA FEDERAI EXPRESS FIT -0203_01378 Attention: Docket No.

ve 2 (S&a mor AR R26 _ |3]0 UNITED STATESA ENVIRONMEA NTAL PROTECTION AGENCY APR 11 2003 PREVEONRTICoONnSUcFBeESSoTTArINIGOEESS NO MEMORANDUM = SUBJECT: Mecting Summary: March 14, 2003 Discussion between EPA andthe Environmental Working Group 5 ~B FROM: TO: Charles M.

ARR26 _ 1347 Telomer Research Program FV AGC a.

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PF mm _ 1 - USER ~6 py 5: 5 AR 86 _ 06.26 3/7/2000 EPA/3M Meeting Objectives 1.

BACK TO MAIN PERFLUOROOCTANESULFONATE, POTASSIUM SALT (PFOS): A FLOW-THROUGH BIOCONCENTRATION TEST WITH THE BLUEGILL (Lepomis macrochirus) FINAL REPORT WILDLIFE INTERNATIONAL, LTD.

BACK TO MAIN STABILITY IN WATER (HYDROLYSIS) TEST SUBSTANCE Identity: Remarks: Perfluorooctanoic acid, ammonium salt; may also be referred to as PFOA ammonium salt, Ammonium perfluorooctanoate, FC-116, FC-126, FC-169, or FC-143.

BACK TO MAIN Decomposition of Perfluorooctane Sulfonate by Combustion Processes Introduction To understand the potential degradation pathways for perfluorinated chemicals, it was necessary to model the thermodynamics of incineration processes.

AR226-1486 ENVIRONMENTAL AND HEALTH ASSESSMENT OF PERFLUOROOCTANE SULFONIC ACID AND ITS SALTS August 20, 2003 Prepared by 3M in consultation with Jack Moore, D.V.M., DABT, Hollyhouse, Inc.

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AR226-3226 FINAL REPORT IN VIVO RAT MICRONUCLEUS ASSAY 'COVANCE STUDY: 22900-0-454OECD STUDY SCHEDULE: Sudy nisionDate: 18-0012001 Initial Dose Date: 23-01-2001 StudyTerminatDiaoten: 19Nov-2001 Fina Report Date: 25.3202 STUDY DIRECTOR, TESTING FACILITY.

DuPont Fluorotelomer Supply Chain Update AR226-3329 Presented to 0 o I Supply Chain Team ^ (0 5 P- 3 December 2004 o 0 s5.' m $ o a Contains CBI - DuPont Confidential Surface Protection Solutions A Contains CBI DuPont Telomer-Based Product Manufacturing Processes PFOA is neither used nor added in the manufacture of D Telomer-Based Products - Research did reveal trace PFOA impurity levels as an un reaction by-product Launched wide-ranging product/process research & an w technology that will essentially eliminate trace levels of Example Reaction Profile and Resul DuPont Telomer-Based Product Manufacturing Processes wo ; a | !

r/T+0c::2 QW, June 4, 200 8 p. 1 ~ DuPont Haskell Global Center s for Health and Environmental Sciences 1090 Elkton Road, P .O .