AD.irMecitcohra-elRKegapullaanto,rPyhA.Dff.airs A(3M02K) /3J6L6C-:52c6lp0 Attachment (1 page) 88090000282 88090000282 DCN:88090000282 Contains No CM CONTAINS NO C81 DuPont Company Chambers Works, Deepwater, NJ Serum Perfluorohexanoate Anion (PFHxA) Results * Results fo r ID Number 80070 80172 80301 80397 80148 Exposure Group P P P P P Samples Collected March 2009 0.5 ND* 1 0.6 0.7 80138 80161 P P 0.5 <0.5** 80349 P 0.7 Number of Samples Average (ppb) . 8 0.54 1*' Median (ppb) 0.55 Max (ppb) 1 Min (ppb) Std Dev (ppb) ND* 0.28 P = Production Group Results are expressed in parts per billion (ppb)

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 (Study Summaries) AR226-1419 RECEIVED OPPT NCIC 2003 July 18 12:00PM On behalf of the Telomer Research Program (TRP) and its member companies - Asahi Glass, Clariant, Daikin, and DuPont - the following study summaries are submitted to the EPA for inclusion in Administrative Record 226 [and/or Docket OPPT-2003-0012], These summaries are for studies conducted for the TRP on the acute hazard of 8-2 Telomer B Alcohol (C8F17CH2 CH2 OH; CAS# 678-39-7) when tested with standard freshwater aquatic test species.

CZ 14 3'r/le- 0 TO DuPont Haskell Global Center s for Health an d Environmental Sciences Elkton Road, P.O .

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

AR226-2307 Scope and Cost of Air Dispersion Modeling Cathie Barton DuPont 03/10/03 Overview of the Scope I Can hire contractor or use in- house modeling resources Data Gathering > Modelim Interpreta of Resul 03/10/03 I Your input is critical here -vs^s^ Data Gathering Meteorological Data Terrain elevation maps Stack Parameters - Location (coordinates) - 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 Modeler typi gets this information you 03/10/03 Standard Model and Methodo EPA's preferred model: Industrial Sou Complex Short Term 3 (ISCST3) Mode Procedures detailed in EPA's Guidelin Air Quality Models (40 CFR 51 Append http://www.epa.gov/scram001/guidanc de/appw_01.pdf 03/10/03 Modeling Output Model will calculate hourly concentra in ug/m3 across a study area (5 km x km for example) Model will average those concentrati over a designated time period (24 ho monthly, yearly) Concentration contours showed exte different ug/m3 Also shows numerical values (top 10 the study area and locations) 03/10/03 Technicolor Example of Outp 2480000-H 247BOOO 2476000-1 W1000-\ 2472000H 2-170000-^ 2468000-1 2466000-'- 608000 610000 612000 614000 616000 618000 620000 62200 Interpretation of Results Compare maximum averaged concentration to appropriate "thres value - Maximum annual average would be compared to a chronic toxicity value - Maximum hourly average would be compared to an acute toxicity value 03/10/03 Cost and Timing Expect about 50 man-hours (_10 h Costs - Outside modeler charges approximate $150/hr - Meteorological data could be up to $1 - Estimate around $8,500 for an averag 03/10/03

./ IV/ sJ3t^{JJ.S~ta EID951510 C-8 ENVIRONMENTAL PROGRAMS VATER CLOSURE OF SUPERNATE PONDS TIMING 4Q88 PURCHASE OF LUBECK VATER COMPANY - CLOSING TURN OVER TO DuPONT 30B9 4Q91 REPLACEMENT OF C-8 IN FEP VITH TBSA POSSIBLE C-8 RECOVERY FROM FEP EFFLUENT 19X IN 1988 IN PROGRESS AIR FINE POWDER DRYER RECOVERY PROJECT UPDATE FENCE LINE MONITORING 4Q89 4Q89 10635-4 - 03/08/89 - WEClkst EID951511

Does not contain TSCA CBI HA8XKLL LABORATORY rOR TOXICOLOGY AMD IHTOSTRIAL KKDICm DuPont HLR 902-96 STATIC, ACOTI 96-HOnR 8CXXX1BO TO rAXBXAD MXNKOMS, "'-rT'T1*" TUT CONDITIONS (Continued) OF H-21952 E, uuin'uium Dissolved Oacygm nd pH: Coneafcration (f/L) f t At initiation, 0 Hour* Oiuolvd Oacygm pH (g/D Xt fcwt co^ltttion, f9tC0 HOUf ----JW----^I^ DlBOlvd Oxygro 98 (g/X.) 0 0.5 1.0 50 500 5000 7.5 8. 7.5 8. 7.5 8.4 7.5 7.5 7.6 7.4 7.5 7.6 7.4 7.6 8.21 7.6 7.6 7.6 7.6 7.6 7.68 a Reading taken at approximately 3 hours after exposure, due to total mortality.

Debbie J Mulrooney i. 04/10/2002 10:22 AM To: Catherine A Barton/AE/DuPor>t@DuPont cc: Subject: Wash Works C8 Max Concentration C a th ie , You asked me the other day for the maximum concentration value for th e W ashington Works C 8 modeling.

RECYCLED "I AR226-2630 00 AR226-2630 DuPont Modeling Methodology and Results Dordrecht Site June 2003 About the Model I Industrial Source Complex Short Term 3 (ISCST3) I Sold/used globally, including in The Netherlands http://www.phoenix-r.co.jp/products/products.htm I Input I Stack height, diameter i Flowrate, temperature I Mass of pollutant (mass per time) i Local meteorological data (Rotterdam, 1996 - 2000) 1 Output l Ambient air concentrations in ug/m3 I Max values and locations outside the property line Prevailing wind Facility Ambient annual ground level concentration in ug/m3 Model Calculations I Ambient air concentrations based on Gaussian Equation I Concentration a function of a vertical term and a dispersion term I Vertical term based on stack height, receptor elevation, plume rise, mixing I Dispersion parameters describe distribution of pollutant in lateral and vertical Dordrecht M odeling Inputs Stack Param eters PTFE S t a c k H eight (m) 20.95 S ta c k Diam.

Telomer RestaschTogpam Meeting Wf 0 NAME ACFILIATION PHONE She Keegaowd DRX To AR-A. 2p Bob Buck DuPont 302-830-8935 David lar Jenne Seed Llefle Hades G4)RAD EPA [AD Ef/Rnp 2or 26s Arar 202-260-130 ( 202-240-0577 SVovgelo.

I would like to request that 3M share this analytical procedure with DuPont as part of our secrecy agreement.

Seed: Enclosed is a copy of a letter we received on Friday, September 17, 2004, from DuPont providing new data regarding health effects among humans exposed to PFOA.

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

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).

DuPont does not believe that the enclosed information triggers reporting obligations under TSCA 8(e) .