FOR DUPONT USE ONLY To : file From : R.A.

AR226-1400 DD OD fie. s e \H-00 DuPont INTEROFFICE MEMORANDUM Date From: Dept: Tel No 12-May-1987 03:06pm EST TONY PLAYTIS PLAYTIS TEFTECH 2775 TO: ROGER ZIPFEL ( ZIPFEL ) CC: JOHN CRUM C CRUM ) Subject: C8 In Water Attached is a copy of the analytical repent for our five water samples, which are identified as follows. #1 - Washington Works drinking fountain, B3. #2 - Powell's General Store, Washington WV * ~ - Lubeck Pennzcil, Lubeck WV #4 - Mason's Village Market, Little Hocking OH #5 - 812 20th Street, Vienna WV C.

Dupont de Nemours & Co., Inc.

THE WEINBERG GROUP can help DuPont take the lead on issues related to PFOA.

Hefter: S 38 {o As a DuPont's further supplement to our knowledge of information July 3 and July concerning the 31 letters on relationship the referenced topic relating between C-8 exposure and birth defectsof the eye, we have enclosed a copy a December 23, 1999, report entitled "Tennant Farm Herd Exhibit A) HTehailsthreIpnovretstiidgeanttiiofni:es cCeartttalienTeeyae mdeRfeepctosrto"bs(eErIvDe1d51a6m8o2n-g80a2d,ulDtUcPa0tt0l4e-a6n2d).the(irSecealves 5 who consumed water from the Dry Run Creek, which USEPA had found in 1997 to be = ox _ o ozR= v Although the Cattle Team ms"umombasreirlvyedcaitnetghoericzaettdleallasof"ptihnek"ecyoem'e,aaln uilncfeercst,isocuasrsand EF 20 opacities, as well as keratoconjunctivitis blepharospas caused by bacteria such as Morexella bovis," (Exhibit A., at EID151693), = there is no tested, and mention the only ofany actual actual positive clinical test results clinical investigationofanyofthe for "pinkeye" eye problems in at anyof the cattle issue performed by tthweoO"hciloouDdeypeayretsm"eontfo"faAdgeraidcuslitxu-rmeonttwho-oyledarbsulelarclailefr" druervienagleadhliesstiioonpsatthhoaltotghiec peaxtahmoilnogaitsitonnootfed could be caused by "inborn errors of metabolism."

Berti Contractor: DuPont Central Research & Development, Newark, Delaware Study Dates: Study Initiation Date: Experimental Start Date: Experimental Completion Date Study Completion Date: 6-May-2002 15-July-2002 9-September-2002 25-March-2003 Study Objective: 1.

<0.6 0.6 <0.6 (3.Q) o.o) EID079104 \ C-8 OFF SITE SAPLING _ 3/13/87 5/12/88 IIS// 2/88 7/89 5/23/91 5/29/91 8/ 8/91 LUECK BUSINESS TAP (2) LPSD HOME TAP -P LP^D HeilE TAP -P LPSb HOME TAP -P LPSD HOME TAP -M LPSD HOME TAP -C LPSD HOME TAP -M *]fc*-AA**AA^**-<n>ritT<^A'AJI[jfc*A**-A*AAA*AAAAAAA***** 3/13/87 3/13/87 5/12/88 VIENNA HOME TAP -M LITTLE MtKINQ 8USINESS TAP LITTLE HOCKING H0ME TAP -R ******AAA*AAAA-A-AAAAAAjfc**^-*Tfc-fc**-AAAA*Jk*^^ 11/28/90 LU8ECK PRIVATE MELLS (2) 8/ 9/91 LU8ECK PRIVATE MELLS (2) nc*-fcAA.AAAA*<nf*-AAA*AA*AAAA**AAAjCil>t**-****A'AAAA 6/23/91 NEW LUBECK WELL <*) CH2MHILL CONFIRMED "PRESENCE" OF C-8 G-Q ^1. 1.3.1'9 22 f.4 0.7 3,8 3.8 3.9 <0.6 <0.6 <0.6 <0.6,<0.6 <1.0,<1.0 2.4 (*) EID079105 '< C-8 HUMAM EXPOSURE LIMITS TLV (3M) AEL (DUPONT) CEQ (AIR, MATER) u6/M3 100 10 .......

Fomicom works in partnership with the Performance Building Solutions business of DuPont to develop the unique products with high efficiency requirements in niche end uses.

MIF of the 10 voting members of the CATT are citer employed by DuPont (2) or the chemical inddstry consulting Fem TERA (3).

Without this uniform position DuPont may be forced to push non-C8 materials into the market and suffer loss in market-share because customers are unwilling to accept our changes.

RM* - 3 * 6 0 442 DuPont Haskell Laboratory for Health and Environmental Sciences AIU ltf_3* TO: FROM: WMR FILE POCKET H-25425 1 J.

Best regards and thank you, 2965651 Unter den Linden 21 10 117 Berlin Germany new.dupont.com Ffin | Connect with us: DuPont Deutschland Holding GmbH & Co.

Cancer Data Ladies and Gentlemen: fS3 tjr* "T| m O "Tt Kxy p i --- { p \ 2 rn ** or* .C21 In response to USEPA's request for available information regarding the potential threat to human health or the environment from PFOA, we previously forwarded to you preliminary abstracts/summaries of data generated in connection with a survey of adverse health effects selfreported among individuals exposed to PFOA-contaminated drinking water in communities near E.I. duPont de Nemours and Company's Washington Works Plant in Wood County, West Virginia (see, e.g., OPPT-2003-0012-607, OPPT-2003-0012-677, OPPT-2003-0012-836, AR226-1714-16, and AR-226-1893-94).

o AR226- 1023 i eComtrptetsoys Waters LTE Nowa 06 13140 Ar CT aagige DuPont Haskell Laboratory +f: 3 Fill: ui .

Major companies: National trade associations AGC Chemical Industries Association F2 British Coatings Federation Koura Dupont 3M Chemours Honeywell Solvay European Fluorocarbons Technical Committee / Cefic Sector Group Plastics Europe FluoroCouncil Chemical Business Association Fire Industry Association Our response; We attend the Chemical Industry Liaison Group meeting which is attended by the CIA, BCF and CBA alongside other regulators.