OS-8 VW 00$09^08B(t) 19:07 ftft 000112022603163 I l D I C K A N S A I R & D IRD P01/01 -AH 2.2.6. 0 3 5 Dmnippon Ink & Chemicals, Inc.

b4> NOTE TO FILE - OPPTS 50639 October 23, 2000 FROM: Karen Lannon SUBJECT: Revised PFOS Hazard Assessment M S A 6 _ 03lf-& Attached is a revised PFOS Hazard Assessment.

3M Specialty Materials Igfff December 20, 2001 3M Center St.

M-2 _ />.5T To: NCIC OPPT/DC/USEPA/US@EPA cc: Subject: AR226: Comments on Telomer Research Plan As indicated below, please include the attached email correspondence from Rich Purdy to Charles Auer in the file for AR-226.

uaS" Estrous Cycling and Natural Delivery/Litter Observation Data FI Estrous Cycling Data, From Data Analysis Presented at EPA on August 30,2002" APFO Dose Group (mg/kg/day) 0 1 3 10 30 All 4-Day 14/30 19/29 9/30 15/29 15/30 Cycles 3-5 Day Cycles 24/30 26/29 21/30 25/29 27/30 Cycle Length (Days) 2 3 4 5 6 7 8 Mean Cycle Length (Days) S.D. 1 2 75 18 5 1 2 4.3 0.8 Incidence of Cycle Length Per Group 0 1 80 16 2 1 0 4.2 0.5 5 7 57 32 5 0 1 4.3 0.9 2 5 84 14 3 0 0 4.1 0.6 5 5 86 17 0 0 2 4.1 0.8 > 4 Days Diest. > 3 Days Est. > 4 Days Diest. > 3 Days Est. 2 17 5 25 Aberrant Cycles * Parental 11 13 15 FI 33 25 29 4 16 5 11 P E M D End in Estrous Distribution of Cycle Status at Start of 21-Day Evaluation Period, FI 14 12 8 10 11 14 62 2 0 15 13 16 13 Distribution Rats in Estrous at End of 21-Day Evaluation Period, FI 13 17 18 19 1 13 3 14 5 11 2 12 19 hO C-i; P '0 CD C--~5I I ro 2?

t o _ I/ Oscar Hernandez 09/27/02 02:32 PM To: Vanessa Vu/DC/USEPA/US@EPA cc: Robert Flaak/DC/USEPA/US@EPA, Charles Auer/DC/USEPA/US@EPA, Margaret Schnelder/DC/USEPA/US@EPA, Seed.Jennifer@EPAMAIL.EPA.GOV@EPA, Barbara Leczynski/DC/USEPA/US@EPA, Priscilla Flattery, Robert Perlis/DC/USEPA/US@EPA Subject: SAB request Vanessa, attached is a request for an SAB review of a preliminary risk assessment of Perfluorooctanoic acid (PFOA).

ff. 72854 AP..6-lll{.6' Federal Register/ Vol. 67, No. 236/Monday, December 9, 2002/Rules and Regulations [FR Doc. 0 2 -3 1 0 1 0 Filed 1 2 -6 -0 2 ; 8:45 am] BILLING CODE 6560-50-S ENVIRONMENTAL PROTECTION AGENCY 40 CFR Part 721 [O PPT-2002-0043; FR L-7279-1] RIN 2070-A D 43 Perfluoroalkyl Sulfonates; Significant New Use Rule AGENCY: Environmental Protection Agency (EPA).

Executive Summary - Biodegradation Screening Studies of 8-2 Telomer B Alcohol - The two studies described in the attached reports (EMSER 13-03/4842 and EMSER 15-03/4842) represent the screening phase for the biodegradability assessment of 8-2 Telomer B Alcohol (CAS# 678-39-7).

/ K U & 6 - - >`2 g ' / Telomer Research Program Annual Report of A ctivities for TRP Grant to University of Toronto; Scott Mabury, PI Project years: 1 September, 2001 to 1 September, 2002.

* NORTHERN KENTUCKY OFFICE SUITE 340 1717 DIXIE HIGHWAY COVINGTON, KENTUCKY 41011-4704 606-331-2838 513-381-2838 FAX: 513-381-6613 Robert A.

AR226-1392 CC: Manufacturing Superintendents Process Superintendents Maintenance Superintendents ' Chief Chemist Research Superintendents Power & Services Superintendent J .

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From: B fW 4 J R*41y on 01/20/2002 09 22 AM To: ASNppQonvirorcorp com, rhamsigenvironccrp :cm cc: M Ann Sradly/STB/DUP@OUP *ohn R 8owman/AE/DuPont@QuPont Subjsct: 10 ug/L m Environ Hazard Narrativa ------------------------- Fcrvrarded oy Barnard j RetiiyiAE/CuPcni on 01/20/2002 09 23 A M ---------- From: Bernard J Reilly on 01/20/2002 09 2i AM To cc: Subject: Gerald L Kennedy/AE/DuPont@DoPont Robert W Rickard/AE/DuPont@OuPont David M Rurak/AE/DuPontjgDuPont, M Ann 8raaley/S"rB/0UP@0UP, John R Bowman/AE/DuPontOuPont.

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3M FLUOROCHEMICAL SUBMISSIONS February, 2002--May, 2004 CLICK A STUDY SECTION BACK TO MAIN TOXICOLOGY, EPIDEMIOLOGY AND MEDICAL SURVEILLANCE Multiple Chemicals PFOS [Perfluorooctanesulfonate] PFOA [Perfluorooctanoic acid] POSF [Perfluorooctanesulfonyl fluoride] PFHS [Perfluorohexane sulfonate] FOSA [Perfluorooctanesulfonamide] N-EtFOSE [N-Ethylperfluorooctane sulfonamidoethanol] ENVIRONMENTAL STUDIES Multiple Chemicals PFOS [Perfluorooctanesulfonate]