AR226-1995 ^ CC: D.

AR226-2037 PECKSR 08/06/98 12:16 AM To: cc: Subject: SZAKATBK, MILLERSR , HALBERRM ESTILUO , 21PPEL, MILLERW, MAYLESM , air C8 recheck PARSONMA fts shown in the Table below, all air samples collected 7-29-98 appear to contain appreciable levels of C-8 except for the blank.

I TestResults AR226-2121 file:///q/WIND(OWsn^EMP/C-8-PC-143 Z 2-2-81 thru 4^8-99.htm Test Results Sample Date Range Concentration Range Action Level Industrial Hygiene 2/2/81 4/8/99 100% Sample Dt Sample U Duration Type Employee Name Pers BTO: LOG: 07 TECHNICAL 411 BLOG. 163 - LAB GENERAL AREA 9/11/81 48655 2 9/22/81 48656 Z 8/23/81 48657 Z 9/23/81 48658 Z Chemical Cone Unit Percent C-fl/FG-143 G-8/FC-143 C-8/FC-143 C-8/FC-143 0.15 MPB 0.06 MPB <0.03 MPB 0.03 MP8 28.8% 10.7% 5.4% 9/25/81 48659 Z C-8/FC-143 0,03 MPB 10/12/81 48660 10/14/81 48661 10/19/81 48662 12/1/B1 48663 12/1/81 48664 4/24/82 34043 4/24/82 34044 8/25/82 34045 8/25/82 34046 11/24/82 34047 Z Z Z Z Z 400 Z 400 Z 408 Z 406 Z 427 Z C-8/FC-143 0.04 MPB 7.1% C-8/FC-143 0.1 MPB 17.9% C-8/PC-143 0.14 MPB 25.0% C-8/FC-143 0.03 MPB 5,4% C-8/FC-143 0.03 MPB 5.4% C-8/PC-143 0.04 MPB 7.1% ^ C-8/FC-143 0.07 MPB 12.5% 0 C-8/FC-143 <0.03 MPB 0 til C-8/FC-143 <0.03 MPB -f^ 5.4% C-8/FC-143 2.28 MPB 407.1% 1 of258 8/9/2001 5:10 PM EID139676 TeslResuIts file:///C|/WlNDOWSnTMBP/C-8-PC-143 Z 2-2-81 thru 4-8-99.htat 11/24/82 34048 12/3/82 34049 1/3/83 34050 1/4/83 34051 2/4/83 34052 2/4/83 34053 3/1/83 34054 3/1/83 34055 4/5/83 34056 4/5/83 34057 4/29/83 34058 4/29/83 34059 5/10/83 34060 5/10/83 34061 427 Z 406 2 413 Z 403 Z 424 Z 427 Z 418 Z 419 Z 433 2 431 Z 441 Z 441 Z 444 Z 443 Z C-8/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 C-fl/FC-143 C-8/FC-143 C.8/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 "^.OS MPB 0.04 MPB <0.03 MPB 0.11 MPB <0.03 MPB <0.03 MPB <0.03 MPB 0.03 MPB 0.35 MPB 0.12 MPB 0.03 MPB <0.03 MPB 0-03 MPB 0.03 MPB 5.4% 7.1% 5.4% 19.6% 5.4% 5.4% 5.4% 5,4% 62,5% 21.4% 5.4% 5-4% 5.4% 5.4% BTO; LOG: 08 TEFLON 002 A/S - MONOMERS SOUTH TANK FARM - GENERAL Thursday, August 09,2001 2:46:34 PM Page 1 of 132 2 of 258 > o Ch 6 <-n Sample Dt Sample tt Duration Type Employee Name Pers Chemical Cone Unit Percent 9/22/82 38001 331 Z C-8/FC-143 0.17 MPB 30.4% 8/9/2001 5:10 PM EID139677 TestResults 8/22/62 39002 9/22/82 39003 9/22/82 39004 9/22/82 39005 9/22/82 39006 331 Z. 327 Z 33$ Z 328 Z 336 Z file:///C|WIMDOWS(TEMP/C-8-FC-143 Z 2-2-81 teu 4-8-99.htm C-8/FC-143 C-8/FC-143 C-8/FC-143 C-8/PC-143 C-8/F0143 0.09 MPB <0.03 MPB 0.09 MPB 0.03 MPB 0.04 MPB 16.1% 5.4% 16.1% 5.4% 7.1% BTO: 08 LOC: 042 5/4/88 TEFLON ACIDNEUT PIT-GENERAL 40895 1440 Z C-8/FC-143 <0.03 MPB 5.4% BTO: 08 LOC: 701 7/30/81 TEFLON FINE POWDER DRYER-EAST SIDE #2 62679 2 7/30/81 62680 Z 9/26/81 62681 2 10/9/81 62682 Z 10/9/81 62683 Z 10/9/81 62684 Z 10/20/81 62685 Z 10/20/81 62686 Z 10/20/81 62687 2 10/27/81 62688 Z 1&/28/61 62689 Z 10/28/81 62690 10/30/81 62691 C-8/PC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 C-B/FC-143 C-8/FC-143 C-8/FC-143 0.96 MPB 171.4% " 1.18 MPB 210.7% " 2.53 MPB 451.8% * 0.67 MPB 119.6% " 0.36 MPB 64.3% 0.68 MPB 121,4% " 4.31 MPB 769.6% " 1.48 MPB 264.3% " 1.13 MPB 201.8% " t3 0.69 MPB 123.2% " ^ 0.27 MPB 0 \t1- 48.2% 0.18 MPB 32.1% 1.91 MPB 341.1% ' 3 of 258 8/9/2001 5:10 PM EID139678 TestResults 10/31/81 62692 1001/81 62693 Z 11/1/81 62694 Z 11/4/61 62895 2 11/4/81 62696 Z 11/4/81 62697 2 11/11/81 62698 2 11/13/81 62699 Z 11/16/81 62700 Z 11/16/81 62701 Z 11/19/81 62702 Z 11/20/81 62703 Z (1/20/81 62704 2 12/9/81 62705 ' 2 rtursday.

AR226-2235 Steven L Grise 12/14/2001 09:50:47 AM To: cc: Subject: Robert F Pinchot/DEV/AE/DuPont@DuPont, Bernard J Reilly/AE/DuPont@DuPont.

AR226-2333 Source ID ' 1 2 Description Pre-scrubber exit for fine powder scrubber (called "AC Scrubber" on map) Post-scrubber exit for fine powder scrubber (called "AC Scrubber" on map) DEC Scrubber MP-2 scrubber Location Height, m Contribution, ug/mS Contribution, % D Plant 7.002 50 D Plant 15 3.345 24 E Plant: copolymer plant for PFA and FEP MP-2 building: 18.2 2.953 21 copolymer type micro- 16.1 0.771 S total = 14.071 source parameters 5-1-03.xls Contribution Source ID .

.^' '-A^ R226-2353 Daikin America Decatur Plant Monitoring January 15, 2004 Daikin America Decatur Plant , - . .

AR226-2521 C-8 DATA SUMMARY REPORT CONSENT ORDER QWR-2001-019 DUPONT WASHINGTON WORKS FACILITY AND LOCAL, LETART AND DRY RUN LANDFILLS Date: February 2003 Project No.: 7423 18983753.00036 CORPORATE REMEDIATION GROUP An Allian6e between DuPont and URS Diamond Barley Mill Plaza, Building27 Wilmjngton, Delaware 19805 ASH021621 EID639853 0-8 Dala Summary Report Table of ContgntS TABLE OF CONTENTS Executive Summary....... ,.................--.....--............................,..,........""---...--...,.-- .

AR226-2584 OuPoni Ena'ineeritiB BarttYMillPlBZa.Blllg.27 Lancaster Pike 8. ftte. 141 Wilmington.OE 1980S DuPont Engineering May 7.2002 George R.

AR226-2709 31 American Chemical Society (ACS) Summary of DuPont Presentations AR226-2709 Annual Meeting, August 2004 Extraction of Perfluorooctanoie Acid from Polytetrafluoroethylene Polymers and Determination by LC/MS/MS Barbara S.

AR226-2786 '"""'"" -~'';;"''''BE^!

.9 Material Tested ----^ E.

PERSONAL AND CONFIDENTIAL Copies +o:l E.

E.

FOR DU PONT USE ONLY AR226-2923 cc; Haskell E.

FOR DU PONT USE ONLY AR226-2943 Du Pont HLR 651-89 Study Title Inhalation Approximate Lethal Concentration and Author Rudolph Valentine Study Completed On November 22, 1989 Performing Laboratory E.