AU JA 6 _ lUJL UNITED STATES ENVIRONMENTAL PROTECTION AGENCY WASHINGTON, D.C. 20460 SEP 25 2002 OFFICE OF PREVENTION, PESTICIDES AND TOXIC SUBSTANCES MEMORANDUM SUBJECT: Summary of PFOA Exposure Conference Call, September 12, 2002 FROM: TO: Charles M.

/>Ra&C - ( 7 3 Telomer Research Program February 7, 2003 DRAFT Study Plan: Impurity Analysis of Articles RECEIVED 0PPTNCIC 2003 APR 21, PH 2: oi, The following is a proposed study plan for analysis of PFOA in 11 articles treated by telomer-based products (see below).

Katherine E.

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Attachment 1 Page 1 May 19,2004 AIR DATA DUPONT WASHINGTON WORKS SITE This submittal summarizes available information from the following two data collection efforts, both of which are associated with PFOA in air at the DuPont Washington Works site: 1.

STUDY TITLE Extraction o f Potassium Perfluorooctanesulfonate from Quail Serum and Quail Liver for Analysis Using HPLC-Electrospray/Mass Spectrometry DATA REQUIREM ENTS Analytical Method Requirements STUDY DIRECTOR Sean Gallagher STUDY COM PLETED ON September 06, 2001 PERFORM ING LABORATORY / TESTING FACILITY Centre Analytical Laboratories, Inc.

PFOS: A REPRODUCTION STUDY WITH THE NORTHERN BOBWHITE FINAL REPORT WILDLIFE INTERNATIONAL, LTD.

January 2005 Supplemental Notice of Contamination A /?

AXYS METHOD MLA-031 Rev 01 ptnc m F orm 1A/2 "" PERFLUORINATED SURFACTANT ANALYSIS REPORT CLIENT ID: Sample C ol taction: 22-NOV-2004 12:20 Lab Ham*: AXYS ANALYTICAL SERVICES Contract No.: 4191 Matrix: W ATER Semple Receipt Date: Extraction Date: Analysis Date: 25-NOV-20Q4 02-Dec-2004 03-Dec-2004 T in : 20:37:58 Extract Volume (mL): 2 Injection Volume (pL): 10.0 Dilution Factor: N/A Project Name: NSA Lab Sample ID: L7411-1 (A) Sample Size: 500 mL Initial Calibration Date: O3-D0C-2OO4 Instrument IO: LC-M S/M S LC Column ID: D iscovery C18 Sample Datafile: PFS4G_110S23 Blank Data Filename: PFS4G JI10S20 Cal.

TestR esults AR226-2124 file:///C|/WINDOWS/TEMP/Monomets C-8 2-26-73 thru 8-5-81 9 pages.htm TestResults Sam ple Pt Range Concentration Range A ctio n Level Industrial Hygiene 2/26/73 100% 8/5/8' Sample Dt Sam ple# D uration Type Employee Name Pare BTO: LO C : 08 TEFLON 018 MONOMER ANALYZER COMPUTER ROOM 11/15/79 61389 2 11/26/79 61390 2 11/29/79 61391 Z C hem ical Cone U nit Percent C-8 0.0006 PPM 0.0% C-8 0.0003 PPM 0,0% C-8 0.0004 PPM 0.0% BTO: LOC: 08 TEFLON 023 TRAINING FACILITY (OLD PROD C.C.) 3/3/81 54817 Z 3/3/81 54818 2 3/16/81 54819 Z 3/17/81 54820 Z 3/18/81 54821 Z 3/18/81 54822 Z 3/19/81 54823 Z 3/19/81 54824 Z 3/27/81 54826 Z ' C-8 0.0004 PPM 0.0% C-8 0.0005 PPM 0.0% G-8 0.0002 PPM 0.0% 0 8 0.0008 PPM 0.0% C-8 0.0002 PPM 0.0% C-8 <0.0001 PPM 0.0% C-8 0.0003 PPM 0.0% C-8 0.0004 PPM 0.0% C-8 <0.0001 PPM 0.0% AJP007141 1of 16 BTO: LOG: 08 701 TEFLON FINE POWDER DRYER-EAST SIDE #2 8/28/2001 4:41 PM E ID 140383 TestResults ' 2/26/73 62670 9/3/74 62671 2/3/77 62672 2/16/78 62673 2/12/79 62674 12/13/79 62675 12/31/80 62676 8/5/81 62677 8/5/81 62678 file:///ClAVINDOWSrrEMP/Moaomf5rs C-8 2-26-73 thru 8-5-819 pages.htm Z C-8 <0,1 PPM 0.0% Z C-8 <0.1 PPM 0.0% z C-8 <0.1 PPM 0.0% z C-8 <0.1 PPM 0.0% z 0 8 <0.1 PPM 0,0% z 0 8 <0.0001 PPM 0.0% z 0 8 0.0073 PPM 0.0% z 0 8 0.0091 PPM 0.0% 2 0 8 0.0005 PPM 0.0% BTO : LOG : 08 TEFLON@ 702 FINE POWDER DRYER CONTROL ROOM (ALSO SEE TTF031 2/26/73 57136 z 08 9/3/74 57137 z 08 2/3/77 57138 z 08 Tuesday.

AR226-2195 S David M Rurak 08/28/2001 07:59 AM To: Ta-W ei Fu/SE/DuPont@DuPont co: Stephen J Gissy/AE/DuPont@DuPont, Oscar T Garza/AE/DuPont@DuPont, Fred M Lentz/SE/DuPont@DuPont, Robbin Banerjee/AE/DuPont@DuPont, Paul K Mathur/CL/DuPont@DuPont, Raymond C Butterworth/CL/DuPont@DuPont, John R Flynn/AE/DuPont@DuPont, Am y L Brown/AE/DuPont@DuPont, Thomas W Mahlberg/SE/DuPont@DuPont, Robert F Pinchot/DEV/AE/DuPont@DuPont, Chris E Shoop/AE/DuPont@DuPont, Roger J 2ipfel/AE/DuPont@DuPont, Alvin H Gibson_Jr/CL/DuPont@DuPont, Debbie J M ulrooney/AE/DuPont@ DuPont DSubject: Re: ACTION ITEMS FROM APFO DISPERSION MODELLING T a-W ei, You have my support to proceed.

AR226-2516 i--1^ 11 ..

2195 Front Street Logan, OH 4313S ONeEFftState rfOhio Environm ental Protection Agency Southeast District Office TELE: (740) 385-8501 FAX: (740) 385-6480 A R 2 2 6 -2 6 0 8 Bob Taft, Governor Christopher Jones, Director July 8,2002 Mr.

AR226-2814 DuPont-14096 TRADE SECRET Study Title H-24750: Static, Acute, 48-Hour Toxicity Screening Test with Daphnia magna Authors: Barbra D.