be Tne s DuPont Haskell Laboratory A R 224-000 FYI --o0-00 (37 G5ol 00000 > January25, 2001 Dr.

Does not contain TSCACBI -5 - H-25134: Acute Dermal Irritation/Corrosion Study in Rabbits DuPont-8778 INTRODUCTION A.

DuPont Haskell Laboratory, Newark, DE; DuPont Chemical Solutions Enterprise, Wilmington, DE; Bogdan Szostek1: Keith B.

received __________________ __________ DuPont-7473 TRADE SECRET Study Title Perfluorooctanoic Acid: Toxicokinetics in the Rat Laboratory Project ID: DuPont-7473 r-o CmO ~XJ i cn o"~--OoH TzxJ ~r. o o F3 o Test Guidelines: U.S.

DuPont's own Year 2000 air modeling data confirms levels of C-8 in local community air in Ohio as high as 0.8 mg/u3 and over 2 mg/u3 at DuPont's fence line.

DuPont EMSE Report No. 15-03 Study Title Accelerated Biodegradation of 8-2 Telomer B Alcohol - A PRELIMINARY SCREENING STUDY Test Guideline This study uses the concept of OECD Guideline for Testing of Chemicals; Section 3: Inherent Biodegradability (1992).

Enclosed please find the additional information you requested on : 1) The comprehensive, peer reviewed study commissioned by DuPont and conducted by Environ on the global fate and exposure potential from DuPont Fluorotelomer products an d 2) Information on the studies that DuPont has conducted and commissioned on the biodegradation of fluorotelomer intermediates and products .

A screening level assessment conceptual model was developed utilizing the results from the extensive site-related modeling and monitoring that was conducted at the DuPont Washington Works site (see Figure 1).

AR226-3194 DuPont-6543 TRADESECRET Study Title H-24949: Biopersistence Screening 10-Dose Oral Gavage Study in Rats Laboratory Project ID: DuPont-6543 Author: Carol Finlay, B.A.

Box 50 Newark, Delaware 19714-0050 LABORATORY PROJECT ID: DuPont-13267 WORK REQUEST NUMBEj--R:--fU=|ff^1 SERVICE CODE NUMBER:|UHj SPONSOR: E.I. du Font de Nemours and Company Wilmington, Delaware 19898 U.S.A.

ASM DuPont Presentations Tracking Document Page 2 of 2

AR226-2357 /y Andrew S Hartten ""'"" 02/20/2004 10:46 AM To: cc: Subject: Mark Houlday/AE/DuPont@DuPont Re: Proposed Monitoring Locations-Need to Discuss Please print, thanksl -------------------- Forwarded by Andrew S Hartten/AE/DuPont on 02/20/2004 10:50 AM -------------------------- "Steve Williams" <steve.williams@epa.state.oh.us> on 02/19/2004 05:46:26 PM To: cc: Subject: <Libelo.laurence@epamail.epa.gov>, Andrew S Hartten/AE/DuPont@DuPont Re: Proposed Monitoring Locations-Need to Discuss Andrew and Laurence, Unfortunately, my schedule will not allow me to attend or tie in by phone to the meeting on February 26.

Forwarded by Barbara J Dawson/AE/DuPont on 01/19/2001 08:55 AM ^ Barbara J Dawson 01/16/2001 08:28 AM To: Mary A Kaiser/AE/DuPont@DuPont cc: (bcc: Barbara J Dawson/AE/DuPont) Subject NMS Results M ary, H ere are the data that I have received thus far.

TRADE SECRET AR226-3196 DuPont-8862 Study Title H-25134: Static, Acute, 48-Hour Screening Test to Daphnia magna Laboratory Project ED: DuPont-8862 A u t h o r : Laurie D.

Third, we note that, as of today's date, we have not received any response to our March 18, 2002, letter regarding DuPont's January 2002 report entitled "Compilation of Historical C-8 Data: DuPont Washington Works Main Plant and Landfills."