310 Form -8747-11-A TECHNICAL REPORT SUMMARY TO: TECH N ICA L COMMUNICATIONS CEN TER - 201-2CN (Im portant -- I f report Is printed on both sides o f paper, send two copies to TC C .i Olvition .

AR226-2033 WASHINGTON WORKo ' INDUSTRIAL HYGIENE REPORT FROM l-Jan-1995 TO 18-Dec-1997 J.0 ^ _X Js/ / Page 1 AREA: FLUOROCARBONS - COPOLYMERS CHEMICAL SAMPLE LOCATION * ;CONTROL 8/FC-143 610 (P/S) BEAD SWECO SCREENER OPERAT * DATE: 9-Jul-r9#T NOTEBOOK: TCP02,P293 EMPLOYEE #00000 DURATION: 390 CONC: 0.02 MPB PERS CODE: 18PJ SAMPLE TYPE: P PERCENTAGE: 4% a-' J - 7 RJZ021164 ia . . . /. a,' " /iii o 3 *m+ * t*,*~>tM* T T g /> / / EID093079 EID093079 WASHINGTON WORKS INDUSTRIAL HYGIENE REPORT FROM l-Jan-1995 .TO 18-Dec-1997 18-Dec~1997 Page 1 AREA: FLUOROCARBONS - COPOLYMERS CHEMICAL SAMPLE LOCATION *:CONTROL C-8/FC-143 S03(p/s)6 A/S - BEAD OVEN ROOM DATE: ll-Jul-lSHE NOTEBOOK: TCP01,P848 DURATION: 360 CONG: 0.13 MPB SAMPLE TYPE: P PERCENTAGE: 23% (18 *:RESP PROT EMPLOYEE #10159 PERS CODE: 18PJ J ^ C-8/FC-143 603(571 & A/S - BEAD OVEN ROOM DATE- 13-Jun-lW6 NOTEBOOK; TCP02,P0S9 DURATION: 375 CONC: 0.02 MPB SAMPLE TYPE: P PERCENTAGE: 4% ' (18 *:RESP PROT EMPLOYEE #00000 PERU CODE: 18PJ .

AR226-2116 Tesi Results Sample Date Range Concentratloa Range Action Level Industrial Hygiene 1/1ADO 12/3100 100% Sample Dt Sample# Duration Type Employee Name BTO: 08 TEFLON LOC: 045 BLOG. 162 ROOF-GENERAL 2/3/00 9393 360 A 5/12/00 9408 360 A 8/7/00 9611 360 A 11/13/00 9742 360 A ' Petrs Chemical C-fl/FC-143 C-8/FC-143 C-8/FC-143 C-6/FC-143 BTO : 08 TEFLON LOC; 048 B-162 OUTSIDE SMOKING AREA - 2ND LEVEL 1/6/00 3356 360 A 2/3/00 9394 360 A 3/6/00 9443 360 A- 5/12/00 9499 360 A 8/7/00 0812 360 A 11/9J0O 0724 360 A C-8/F-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 C-a/FC-143 BTO: 08 LOC: 101 TEFLON P/S - TFE FIELD OPERATOR (08PA) 3 34707 360 P COX, JOHN A 7/10/00 35087 360 P SKILES, JAMES S 10/1000 35395 360 P COX, JOHN A 08PA C-8/FC-143 08PA C-8/FC-143 08PA C-fi/FC-143 BTO: 06 LO C: 1Q2 TEFLON P/S - HFP FIELD OPERATOR (03PB) 2/2/00 34583 5/12/00 34880 360 P WALKER, PATRICK M 360 P MOON, GARY E 8/7/00 35134 11/9/00 3S488 360 P YOUNG.

AR226-2260 C hris E S ho op 02/20/2002 0 5:20 P M ..... ........; _____ ___________ I _____ Tocc: Subject: Robert F Pinchot/DEV/AE/DuPont@DuPont, Debbie J Mulrooney/AE/DuPont@DuPont Robert I Wevodau/SE/DuPont@DuPont, Ravinder Singh/CL/DuPont@DuPont, George L Clowes_Jr/CL/DuPont@DuPont, Stephen J Gissy/AE/DuPont@DuPont Emission Estimates for 2003 Production Rob / Debbie, Here's the file to use for emission estimates based on 2003 production forecasts.

AR226-2317 Charles J Zarzecki 03/26/2003 11:02 AM To: Ann K Masse/HO/DuPont@DuPont cc: Catherine A Barton/AE/DuPont Subject Washington W orks C 8 Modeling Report Ann, As we had promised, attached is the modeling report that Debbie Mulrooney wrote for the modeling she did for Washington Works.

AR226-2318 AIR QUALITY DISPERSION MODELING ANALYSIS OF 8 EMISSIONS DuPont Fayetteville, North Carolina Facility Prepared by: Charles J.

Air Dispersion M odeling Verification Study Oct 22,2003 g tNoa toJ AR226-2346 EXP015790 O b jective Compare results from ambient air sampling and air dispersion modeling to understand how modeling predictions relate to measured ambient air concentrations to0^too1\ to EXP015791 Verification Study Scope Air Sampling Program Analytical Methods Modeling Analysis of Results oNm two EXP015792 Air Sampling Locations Simultaneous coverage of all 4 major wind directions (N, S, E, W) Capture point of predicted maximum concentration from modeling Include co-located samplers at predicted maximum Total of six locations IaoMm to EXP015793 Air Sampling Loc ASH026725 EXP015794 ASH026726 EXP015795 | /* Air Sampling Strategy Measure ambient air levels i 24-hour sampling duration Seven (7) sampling events scheduled over 6 weeks Vary day of week to capture variations in daily operations (none expected) and variations in meteorology Record site-specific meteorological and operational data EXP015796 Monitoring Strategy: Samples taken every 6 days for 6 weeks.

AR226-2386 CONFIDENTIAL 5W Polymer Products Department Research and Development Division Experimental Station analytical report .8A iV" si,"0" >* ce: S, C.

Confidential Standard BLANK M100 M200 M300 M400 M500 M600 M700 -Standard!

RECYCLED CO cn AR226-2646 05/09 '02 13:51 ID:DUPONT ENV AFFAIRS FAX:1-804-383-3735 PAGE 2 AR226-2646 REPORT N O . t STT-91-1 DATE ISSUED} 01/16/92 COPY NUMBER} RICHMOND, VIRGINIA FIBERS DEPARTMENT SPRUANCE "TEFLON" TECHNICAL E.

AR226-3038 Study Title Skin Irritation Test with H-2I460 in Rabbits Laboratory Project ID Haskell Laboratory Report No. 83-96 Author Tracy A.

AR226-3194 DuPont-6543 TRADESECRET Study Title H-24949: Biopersistence Screening 10-Dose Oral Gavage Study in Rats Laboratory Project ID: DuPont-6543 Author: Carol Finlay, B.A.

P M&&6 - 32 f 451 Determination of Ultraviolet DuPont report # 12734 t Test Guideline(s) Authors Maiy A.

H IM -. 3X20 462 DR.U.NOACK-LABORATORIUM FR ANGEWANDTE BIOLOGIE 3&20 Terrestrial Plants Toxicity, Seedling Emergence according to OECD Guideline 208 (Draft July 2000) 9 Sponsor Asahi Glass" Clariant Daikin Industries Ltd Dupont Author Silke Fiebig Test Facility Dr .U .N o ack-Laboratoriu m FOR ANGEWANDTE BIOLOGIE Kthe-Paulus-Str. 1 D-31157 Sarstedt Laboratory Project ID P ro ject-N o |M H H M Study-No.

AR i . 33/3 - 495 M M 6 - r t l D uP ont-11763 Supplement Number 1 TRADE SECRET Study Title H-25509: Repeated-Dose Dermal Toxicity 28-Day Study in Male Rats Supplement Number 1 Test Guidelines: U.S.