Environmental Protection Agency EPAEast (Mail Code 7405M) 1200 Pennsylvania Avenue, NW Washington, DC 20460 From: Katie Smythe, on behalf of the Telomer Research Program Subject: TRP Document Submission - Atmospheric Fate Final Report & Study Summary On behalf of the Telomer Research Program (TRP) and its member companies - Asahi Glass, Clariant, Daikin Industries, and DuPont - the following study report is submitted to the EPA for inclusion in Administrative Record 226 and/or Docket OPPT-2003-0012.

MScoodpeeliannad Cost of Air Dispersion Cathie Barton DuPont 03/10/03 AR226- Overview of the Scope Can hire contractor or use inhouse modeling resources GaDthaetraing Modeling InotefrRpreestualttison Ycoriutircianlphuetreis 03/10/03 Data Gathering Meteorological Data * Terrain elevation maps Stack Parameters - Location (coordinates) Minofdoegrlemeytrsaotttuyihopinsicfaolrly - Height - Temperature - Stack gas vertical velocity - Diameter - Emission rates for each compound Plot Plan - Exact locations of all sources - Property line - Building locations and heights EID 719401 03/10/03 Standard Model and Methodology EPA's preferred model: Industrial Source Complex Short Term 3 (ISCST3) Model Procedures detailed in EPA's Guideline on Air Quality Models (40 CFR 51 Appendix W) http://www.epa.gov/scram001/guidance/gui de/appw_01.pdf M H 03/ 10/03 Modeling Output Model will calculate hourly concentrations in ug/m3 across a study area (5 km x 5 km for example) Model will average those concentrations over a designated time period (24 hour, monthly, yearly) Concentration contours showed extent of different ug/m3 Also shows numerical values (top 10 in the study area and locations) 03/ 10/03 Technicolor Example of Output WcGnO EID 719404 r_ Interpretation of Results Compare maximum averaged concentration to appropriate "threshold" value - Maximum annual average would be compared to a chronic toxicity value - Maximum hourly average would be compared to an acute toxicity value P O Oo wcn 03/10/03 to EX D 719405 Cost and Timing Expect about 50 man-hours (_10 hours) Costs - Outside modeler charges approximately $150/hr - Meteorological data could be up to $1,000' - Estimate around $8,500 for an average job. o o owcn 03/10/03 o EID 719406

Environmental Protection Agency EPA East (Mail Code 7405M) 1200 Pennsylvania Avenue, NW Washington, DC 20460 From: Katie Smythe, on behalf of the Telomer Research Program Subject: TRP Document Submission (Study Report) AR226-1639 Recieved OPPT NCIC 05 FEB 2004 On behalf of the Telomer Research Program (TRP) and its member companies - Asahi Glass, Clariant, Daikin Industries, and DuPont - the following study report is submitted to the EPA for inclusion in Administrative Record 226 [and/or Docket OPPT-2003-0012], This report is for a study conducted for the TRP on the "Biodegradation of 14C-labeled 8-2 Telomer B Alcohol (Modified OECD 301D Closed Bottle Test)."

Environmental Protection Agency EPA East, Mail Code 7405M 1200 Pennsylvania Avenue, NW Washington, DC 20460 E-mail: domirtak.mary@epa.gov c=> V-5100 (JV--) -"--oO<pOrrni -2 Ev Opn ;~> cd ro CIND Dear Mary: The Telomer Research Program (TRP) and its member companies - Asahi Glass, Clariant, Daikin and DuPont - are providing to U.S.

Best regards and have a nice weekend, 5.1.2e DuPont Deutschland Holding GmbH & Co.

fft-oao/-/37< ail 2-z6_ /ozr ___ <P UNITED STATES ENVIRONMENTAL PROTECTION AGENCY WASHINGTON, D.C. 20460 February 14, 2001 OFFICE OF PREVENTION, PESTICIDES AND TOXIC SUBSTANCES DuPont Haskell Laboratory Attn: Gerald L.

DuPont's "Fourth Quarter 2002 C-8 Surface Water and Groundwater Monitoring Report for Washington Works Washington, WV" (December, Facility 2002); and Local, Letart and Dry Run Landfills, = 2.

DuPont has conducted extensive studies to be able to define safe use and handling for our customers.

# 0 2 6 - / o 3 OFFICE OF PREVENTION, PESTICIDES AND TO XIC SUBSTANCES DuPont Haskell Laboratory Attn: Gerald L.

PESTICIDES AND TOXIC SUBSTANCES DuPont Haskell Laboratory Attn: Gerald L.

Bert Contractor: DuPont Central Rescarch & Developmen, Newark, Delaware Study Dates: ESxtpuedryimIennttarlonSiaDratDeae: Experimental Completion Date: Study Completion Dae: 6May-2002 151-2002 9-Sepember-2002 25March2003 Study Objective: 1.

WATER DISTRICT 0.25 DOWNSTREAM 0.25 DOWNSTREAM 1.1 1.9 1.8 1.5 1.9 1.4 LITTLE HOCKING 3.00 DOWNSTREAM 0.6 ND ND RAVENSWOOD 29.0 DOWNSTREAM ND ND = NOT DETECTABLE RJZ009907 10635-3 - 03/08/89 - WECkat EID951509 WASHINGTON WORKS C'8 ANNUAL [SERN CONCEN T R T/N C A S E 1 - 1983 806600Zra EID951510 C-8 ENVIRONMENTAL PROGRAMS WATER CLOSURE OF SUPERNATE PONDS TIMING 4088 PURCHASE OF LUBECK WATER COMPANY - CLOSING TURN OVER TO DuPONT 3Q89 4Q91 REPLACEMENT OF C-8 IN FEP WITH TBSA 19X IN 1988 POSSIBLE C-8 RECOVERY FROM FEP EFFLUENT IN PROGRESS AIR FINE POWDER DRYER RECOVERY PROJECT UPDATE FENCE LINE MONITORING 4089 4Q89 RJZ009909 10635-4 - 03/08/89 - WEC:kst EID951511

Dominiak, 202-260-7768 Members of the Fluoropolymer Manufacturing Group (FMG), including Dupont, Atofina, Ausimont, Daikin, Dyneon, AG Fluoropolymers, and the Society for the Plastics Industry, met with EPA staff on March 7, 2001 to air their concerns about the continuing use and availability of ammonium perfluorooctanoate (APFO), a derivative of perfluorooctanoic acid (PFOA).

Environmental Protection Agency EPA East (Mail Code 7405M) 1200 Pennsylvania Avenue, NW Washington, DC 20460 From: Katie Smythe, on behalf of the Telomer Research Program Subject: TRP Document Submission (Study Report) AR226-1639 Recieved OPPT NCIC 05 FEB 2004 On behalf of the Telomer Research Program (TRP) and its member companies - Asahi Glass, Clariant, Daikin Industries, and DuPont - the following study report is submitted to the EPA for inclusion in Administrative Record 226 [and/or Docket OPPT-2003-0012], This report is for a study conducted for the TRP on the "Biodegradation of 14C-labeled 8-2 Telomer B Alcohol (Modified OECD 301D Closed Bottle Test)."

Van Wely (DuPont), Mr.