Additionally, DuPont will prepare a long-term groundwater monitoring plan upon request by USEPA Region III.

SIGNATURE PAGE DuPont HLR 796-96 ^}^WQ.

Does not contain TSCACW -5- H-24256: Oral Approximate Lethal Dose (ALD) in Rats DuPont-3628 C.

Bob Buck DuPont Chemical Solutions Enterprise Wilmington, DE The mmeles fsdencrj 1 mu F lu o ro telo m ers tup W hat are they?

ZipfeJ" <ZIPFE1@WWPS-A1 .EMAlL.DUPONT.COM > on 09/14/99 0 4 :3 8 :5 1 PM To: Roger J Zipfel/AE/DuPont cc: Subject: tC-8 ENVIROMENTAL SAMPLING/24-Jun-1998jFC-143 Results Availab Date: Wed, 24 Jun 1998 13:38:00 EDT From: VERA L W I G A L < WIGALVL@wwp3-al.email.dupont.com> Subject: FC-143 Results Available To-Date (Woytowich) To: "ANDREW S.

The of Ani Lytics blood hormone Inc and DuPont dete , as rminations appropriate and report .

. = In addition, by April 1, 2003: provide EPA with applicable existing industrial hygiene air monitoring data for PFOA from DuPont operations at Chambers Works; and the DuPont telomers business will provide EPA with summary data on existing employee blood monitoring results from telomer manufacturing operations and PFOA recycle operations at Chambers Works.

DuPont Company Corporate Center for Analytical Sciences Barry W.

The proliferatiocnellnuclearantigenevaluationdata and report willbe auditedby the QAU of Pathology AssociatesInternationalT.he serum, urine, feces,and liverA.PFO analysisand reportwillbe auditedby the QAU of 3M Environmental Laboratories.The blood hormone determinationsand reportwillbe audited by theQAU of Ani LyticsIncand DuPont, as appropriate.The receptorlevel determinationsand reportwillbe auditedby theQAU of DuPont.

TURI TOXICS USE REDUCTION INSTITUTE UMASS LOWELL TOXICS USE REDUCTION INSTITUTE The Offices at Boott Mills West 126 John Street, Suite 14 (2nd Floor) Lowell, MA 01852-1152 www.turi.org The Toxics Use Reduction Institute (TURI) respectfully submits the following comments to the European Chemicals Agency as input on their PFAS restriction proposal regarding fluorinated gases (F-gases).

DossnotcontainTs cp, - H1-02-5D3o5s7e:OraBiloGpearvsaigsteeSntcuedSycirneReanitnsg -- TABLE OF CONTENTS Dupont 11557 Page LCIESRTTIOFFITCAABTILOENS wood LIST OF FIGURES.

TURI TOXICS USE REDUCTION INSTITUTE UMASS LOWELL TOXICS USE REDUCTION INSTITUTE The Offices at Boott Mills West 126 John Street, Suite 14 (2nd Floor) Lowell, MA 01852-1152 www.turi.org The Toxics Use Reduction Institute (TURI) respectfully submits the following comments to the European Chemicals Agency as input on their PFAS restriction proposal regarding fluorinated gases (F-gases).

PECs and PIC I ; SeotchGand ARAR6.- ISOC p bt4 7 3 \ 44 COTCHGAR Toxic to animals & people.

DuPont Washington Works Samples Sample Dates 5/8/97 (groundwater), 5/30/97 (soil) DuPont 3M LR No.

STUDY COMPLETED ON : September 15, 2006 PERFORMING LABORATORY : DuPont Epidemiology Program DuPont Haskell Laboratory for Health and Environmental Science s 1090 Elkton Road, Newark, DE 19714 LABORATORY PROJECT ID : DuPont-14809 (Phase II) WORK REQUEST NUMBER : 15259 SERVICE CODE NUMBER : 1242 SPONSOR: E.I. du Pont de Nemours and Company Wilmington, Delaware 1989 8 U .S .A . 1 of 73 p. 2 FINAL Good Epidemiology Practice Compliance Statement ..... .. .. . . . . . . . . . . . .. . . .. ..... ... . . . . . . . . . . .......... .. . . . . . . . . 5 DuPont Approval ... ..... .. . . .. . . . . .. . . . . . . . . . . . . . . . . ........ . .. . . . . .. . . .. ...... .. .. .. .. .. . . . . . . . . . . . . ... ..... .. . . . . . . . . . .. .. ........ .. .. . . 6 Epidemiology Review Board .. .. . . . . . . . . . . . . . . . .. ........ . . . . . . . . .. ............ .. .. . . . . . . . . . . . . . . . .. ... .. . . . . . . . . . . . .. ............ .. 7 Abbreviations and Symbols . .. .. . . .. . . . . . . . . . . . . . .. ...... .. . . . . . . . . .............. .... . . . . . . . . . . . . . . . ...... . .. . . . . . . . . . ............ .. 8 Executive Summary . . . .. ................. . . . . . . . . . . . . . .. ......... . .. . . . . .. . . .. ............ .... . . . . . . . . . . . . . .. ..... . . . . . . . . . . . .. .. ........ 9 Introduction ..... . . . . . . . . . . . . . .. .... .. .... ..... .. . . .. . . . . . . . . . . . .......... . . . . . . . . .. .. .. .............. . . . . . . . . . . . . . .. ..... . . . . . . . . . . . .. ...... 11 Methods . . . . .. ...... .. . . . . . . . . . . . . . . . . . .. .... ......... .. . . . . . . . . . . . .. ........ .. . . . . . . . . . . . . .. .... ........ .. . . . . . . . . . . . .. ...... . . . . . . . . . . .. . . .. .. 1 2 Cohort Ascertainment . . . .. . . . . .. .... ..... .. . . .. . . . . . . . .. ........ . . . . . . . . . . . . .. .... ........ ... . .. . . . . . . . . . . . .. ..... . . . . . . . . . . . .. .. 13 DuPont Mortality Registry . . .. .. .. ....... .. .. . . . . . . . . . ........ . . .. . . . . . . . . . . . . . . .. .......... .. . . . . . . . . . . . .. ..... . . . . . . . . . . . .. .. 13 Exposure Categorization . . . . . . . . . . . .. ......... . . . . . . . . . . . ........ .. . . . . . . . . . . . . . . . . . . .. ........ .. . . . . . . . . . . . .. ... .. . . . . . . . . . . . . . 1 3 Establish Job Exposure Categories ..... .. . . . . . . . . . .. ........ . . . . .. . . . . . . . . . . .. ........ .. . . .. . . . . . . . . . . . ..... . . . . . . . . . . . . . 14 Exhibit 1 .