AR226-2160 C hris E S hoop 07/12/2001 01:17 P M _____________ __ ___________________ To: cc: Subject: Robert F Pinchot/DEV/AE/DuPont@ DuPont, Debbie J Wlulrdoney/AE/DuPont@DuPont David M Rurak/AE/DuPont@DuPont, H David Ramsey/SE/DuPont@DuPont, Stephen J Gissy/AE/DuPont@DuPont, Robert L Ritchey/CL/DuPont@DuPont, John J Mentink/CL/DuPont@DuPont, Bernard J Reilly/AE/DuPont@DuPont, John R Bowman/AE7DuPont@DuPont, Andrea V Malinowski/AE/DuPont@DuPont, Oscar T Garza/AE/DuPont@ DuPont, Maurice Astorga/AE/DuPont@DuPont, Catherine A Barton/AE/DuPont@DuPont Re: Air dispersion modeling strategy 0 Rob / Debbie, Here's a table of the data requested.

AR226-2208 / f Roger J Zipfel 11/02/2001 11:17 AM To: Robert F Pinchot/DEV/AE/DuPont@DuPont co: Debbie J Mulrooney/AE/DuPont@DuPont Subject Re: C8 Particle Density Cj Debbie, I don't really understand what you are asking for.

Me thod : uKB/OO -tOOOOOO .USKRb^JUb'.srtILEXZJDt'2Eu00o Component: ET-C8 Date: IO-SEP-1991 14:47:07.30 Quadratic fit KO: 1.5256E-03 Kl: 1.9351E+00 K2: -5.8485E-01 Inter nal standar d SO o e f f . of determination: l.QOuo AR226-2416 Standard Sample STD v n STD X 1.5 STD X 1 STD X 0.3 STD X 0.1 Corapone nt Area 17683b5 1366427 949132 493292 101357 Btandar-d Area 2147347 2121692 2121968 2098421 2121787 Component Hass 2.0000 1.5000 1.0000 0.50000 0.10000 Standard Mass 4.0000 4.0000 4.0000 4.0000 4.0000 Standard Sample STD X 2 STD X 1.5 STD X I STD X 0.5 STD X 0.1 Area Ratio 0.82351 0.64403 0.44731 0.23746 4.805E-02 Mass Ratio 0.50000 0.37500 0.25000 0.12500 2.5000E-2

AR226-2532 C-8/WATER MEETING AGENDA (THURS, NOV. 7 - B21 LCR) * GLOBAL C -8 ISSUES - ROGER Z I P F E L * VERIFICATION INVESTIGATION - DAN WEBER * .

AR226-2587 Division o f Water Resources 1201 Greenbrier Street Charleston, WV 25311-1 lOg 304-558-2108 Fax: 304-558-2780 West Virginia Department of Environmental Protection Bob Wise Governor 3 July 2002 Michael O.

KEVIN J .

bkX&(>-2-74 LITTLE HOCKING WATER ASSOCIATION, INC. 3998 St.

FOR DU PONT USE ONLY E.

AR226-2886 E.

FOR^fi' PONT USE ONLY AR226-2888 E.

AR226-3145 DuPont-4002 HASKELALNLDAIBNODRUASTTORRIAYLFMOERDTICOIXNIECOLOGY H-24390: STATIC, ATOCUDTaEph4n8ia-HmOaUgnRaSCREENING TEST PURPOSE: This is a rangefmding study designed to provide an estimate of aquatic toxicity using fixed test concentrations and data measurements at predetermined intervals.

TRADE SECRET Study Title ISubchronic Toxicity 90-Day Oral Gavage Study in Rats Volume 1 of 3 Laboratory Project ID: DuPont-9478 DuPont-9478 Test Guidelines: U.S.

AR226-3335 Datamemo Date: September 21,2000 To: Barbara S.

Society of Environmental Toxicology & Chemistry Summary of DuPont Presentations AR226-3341 SETAC North America November, 2002 Salt Lake City, UT Environmental fate studies of fluorotelomer intermediates used to produce surfactants and polymers. 3 Berti, W.R.1, Wang, N .\ Cobranchi, D.P.1, Larsen, B.S.1, Szostek, B.2, Kaiser, M .A ., Gannon, J.T. and Buck, R.C.

ARAS6- 3lf30 1/ 34 000358 f if i 4.3. & _ 5 If-3 0 DATA SUMMARY Chemical: Perfluorooctanoic Acid Site: Fayetteville Works Date of Monitoring; October 2002 Matrix: Blood Serum Operation: P F O A Production Job Title Entire Cohort Males Females Operators Males Females Mechanics Males Females Laboratorians Males Females Supervision Males Females Number Sampled 20 17 3 8 8 0 1 1 0 2 0 2 9 8 A i Minimum SISMeansi'l?