AR226-2315 Charles J Zarzecki 03/19/200311:31 AM To: Catherine A Barton/AE/DuPont cc: Subject VVV C8 Modeling Cathie, I took a look at the location of the maximum predictions in the W V C8 modeling summary.

AR226-2471 DtiPoftJ VifeshiirionWorks P.0. 3dx 121?

AR226-2550 D uP ont W ashington W orks RCRA Facility Investigation Results Review Oct. 28,1999 IIDX56232 1 Proposed Agenda Introductions Site Background Site Hydrogeology RFI Scope of Work RFI Results Conclusions and Recommendations Wrap-Up EID156233 Desired Meeting Outcomes * To familiarize the EPA project team with the Washington Works site physical setting To share the results obtained from the recently completed RCRA Facility Investigation * To provide perspective on the RFI results To propose a path forward that will ensure continued protection of human health and the environment ...._______ ______ IID 156234 Main Messages for Today: The DuPont Washington Works site is well characterized and well understood, as a result of over 10 years of investigation and monitoring.

AR226-2580 D ivision o f W ater Resources 1201 Greenbrier Street C harleston, W V 25311-1088 T elephone Number: (30 4) 558-2107 Fax Number: (304) 558-5905 W est Virginia Department o f Enviromnental Protection Bob Wise "~A " -- -- Michael O Callaghan Governor Secretaiy MEMORANDUM OF UNDERSTANDING between the OHIO ENVIRONMENTAL PROTECTION AGENCY and the WEST VIRGINIA DEPARTMENT OF ENVIRONMENTAL PROTECTION, WEST VIRGINIA DEPARTMENT OF HEALTH AND HUMAN RESOURCES, and E.I. du PONT de NEMOURS COMPANY (DuPONT) The W est Virginia Department of Environmental Protection [WVDEP], the W est Virginia Department o f Health and Human Resources [WVDHHR], E.I. du Pont de Nemours Company [DuPont], and the Ohio Environmental Protection Agency [OEPA] [collectively referred to as the "parties"] hereby enter into the following M EM ORANDUM O F UNDERSTANDING [MOU] related to the enforcement o f certain terms and conditions o f Consent Order Number GWR-2001-019 entered into by and between WVDEP, WVDHHR, and DuPont W hereas mmnnium perfluorooctanoate [C8], an unregulated chemical, was found to be present in the drinking water supply o f citizens o f the state o f W est V irginia living in and around Letart and Dry Run Landfills, and the Washington Works chemical facility located in Washington, W est Virginia, which are facilities owned and operated by D uPont [the Facilities].

RECYCLED CO AR226-2625 mm AR226-2625 DuPont Engineering Barley Mill Plaza - Bldg. 27 4417 Lancaster Pike Wilmington, DE 19805 October 19,2004 Mr.

NOVEMBER 15,2004 EPA PRODUCTION VOLUME 28 BIODEGRADATION /DEGRADATION VOLUME I of II 1 ~0021453.txt h TELOMER PRODUCTS - SURFACTANTS ABSTRACTS c Thermal Degradation D.

AR226-2685 AR226-2685 CCAS ( n r p t t r t i W ( V m W f> ` I t t i t h l i c i t !

AR226-2775 FOR DU PONT USE ONLY E I .

AR226-2841 vy Copies toil Haskell L a b !

AR226-2849 ACUTE INHALATION TOXICITY STUDIES ON FOUR MIXTURES Haskell Laboratory Report Ho. 115-76 Report by: gess logist Approved by: _ tbs rochisGwicz Chief Inhalation Toxicology Section B A B :dhg jjate Issuei February 17, 1976 Company Sanitized.

FOR D PONT USE ONLY AR226-2902 E.

AR226-2957 Study Completed On Hay 20, 1991 Performing Laboratory E.

PURPOSE: This is a rangefinding study designed to provide an estimate of .

Study Sponsor: Issue Date: Document Reference No.: ELFATOCHEM 10-Jul-95 95/SAE6/0548/HT AR226-3022 Ready Biodegradability Author(s): H.

AR226-3025 TRAPE SECRET Study Title E V A L U A T IO N ^ jy r a y ^ g l^ ^ D A B IL IT Y OF USING THE CLOSED BOTTLE TEST Author John T.