RECEIVED OPPTNCIC 20084U6 -3 PH 2' 38 AR Z-Zb - 061S' f U\81uI,J\ *\<!

Biennial Report for Emissions o f PFOA Calendar Year 2003 DuPont - Washington Works Biennial Report for Emissions o f PFOA Calendar Year 2003 DuPont - Washington Works Page 1 o f 2 /&y*y " Note: The information contained in this document is submitted voluntarily and may be subject tofuture revision and/or modification.

Katherine E.

AR226-1969 Fine ^ujeLer D ryer O perator1* 3 > e sk - ' / */ p p b !

AR226-2042 WASHINGTON WORKS C-8 INDUSTRIAL HYGIENE A.

Undated Documents AR226-2087 Air Samples R e s u lt P o s t i o n ....... ........... ......... 1 S a m p le # T C P 2 3 1 ) P ayro ll # (T M O 045) TC P 603 F E P O v e n C o n tro l R o o m , P osition 1 (T C P 231) F p & 0 A u to clave C ontrol R oom In take F P F ln lsh ln a D iv e r O p erato r rrrF i0 2 ra 8 P i) IT M O 0 4 5 ) 4872 ftra n n in r Pn lvketile C ontrol R oom ftra n u in r Polvkettle C ontrol R oom ((TTMTFOO0e4O5)) O TF060) fT C P 231> (T M O 045) W a x R o o m H V A C In ta k e B e a d O v e n R o o m ______________ _______ F P fc n 'A iiW tlA V A C o n tro f R o o m In ta k e " (T M O 045) TC P 603 (TM 45) (T M O 045) TC P 603 F P R n ish ln o (D rver) C o n tro l R o o m (T T F 0 3 1 ) ~ TTMD45J" frT F 028t 1 F P & D A u to clave co n tro l R o o m In ta k e F F P PnlvkettlB C o n tro l R o o m , P o sitio n 1 F E P E xtru d er C ontrol R o o m B 1 6 2 2n d L evel O u tsid e S m oking A re a (T M 045) "(T C P 2 1 5 > (T C P 268) (T M O 045) (T M O 048) (T T F 0 2 8 ) ' (T T F 028) (T T F 0 2 8 ) (T T F 028) M o n o m e r C ontrol R o o m H V A C In take # 3 S la b D rn o W h ile In U s e (T M O 045) IT C P 2 3 7 ) (T T F 0 2 8 ) (T T F 028) (TM O 04B ) F P F in iah in a /D iv e rt C o n tro l R o o m B 1R 2 2n d Level O u tsid e S m o kin g A re a F P & D A u to clave C on tro l R o o m in ta k e F F P Pnlykp.ttle C o n tro l R o o m .

AR226-2094 \ ....... ............... . * Test Results Industrial Hygiene Sample Date Range 1/1/90 12*31/90 Concentration Range Action Level 100% ...i---- i mi iirruir ~~ ........ - ..........

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AR226-2242 EDD0065180 4348500- C8 2000 Actual Emissions Annual Average Vapor Concentrations (ug/m3) 4348000- 4347500- 4347000- 4346500- 4346000 M44a0x0i0m0um con4c4e0n50tr0ation =4241.800005 ug/m344a1t540402135E,4442304060899N 442500 443000 443500 444000 --I 444500 EDD0065181 4348500- C8 Permitted Emissions Annual Average Vapor Concentrations (ug/m3) 4348000- 4347500- 1

AR226-2274 JOHN BENEDICT - C8 update from air quality Page 1 From : To: D ate: S ubject: Jesse Hanshaw DEE ANN STAATS 4/16/02 5:10PM C8 update from air quality Hi Dee Ann, W e are currently in the process of coordinating our modeling efforts with DuPont.

AR226-2319 Charles J Zarzecki 04/02/2003 03:14 PM To: Catherine A Barton/AE/DuPont co: Subject: Beychok Article C a th ie , I finally was able to review the Beychok article on error propagation In dispersion m odeling.

Engineers Planners Econom ists Scientists April 12, 1993 LMS35216.X AR226-2428 Mr.

i b o r a t o r i e s INowHoftni P O 'B a x m a s .

AR226-2602 Ubel6.Laurence@epamaa.epa.gov on 12/01/200311:11:00 AM To: cc: AAnnddrreewaVSMHaaJrttnteonw/AsWE//ADEuP/DounPtonDtuPDounPtont, DavidMRurak/AE/DuPont@DuPont Subject: DomWak.Mary0epamall.epa.gov ' Hi Andrew, I hope you had a good Thanksgiving.

AR226-2842 9n d iu U ia B I O - T E S T i 1810 FRONTAGE ROAD NORTHBROOK, ILLINOIS 60062 Dnc.