3 February 2004 AR226-1938 To: Mary F.

AR226-1979 S /S>/IC^<Sf^t^H<sl^ ^n^fe^^ " ftfe-ft ftn/ pa^p^f s/f^a/^ ^^//ee.^ ^/- ^ ^f}S~/fl ^}iffw^ hi^li ^T-rf- /e^e-/S ^^ ^.

AR226-2089 TA3LE 1 HAXIMIH4 1-ER, S-'dR A-\1) AKKUAL HEAM C-8 COKCENTRA'n :ONS 0V ES TE tIV YEAS (1973-:1977) PERIOD OiF RECORD AT SL2:CTED .

AR226-2144 COHMUNITY STATUS VATER AIR SOLID VASTE 10635-1 - 03/OB/B9 - WKC:kt EID951507 WASHINGTON VOBKS OFF-PLANT EMISSIONS POUNDS C-8 1983 1986 '1988 WATER 21,700 19,100 23,300 AIR 12,700 16,200 26,200 PRODUCT 8,000 8,300 11,300 OFF-PLANT DISPOSAL TO CW - WWTP 7,700 ____ TO LETART LANDFILL 8,300 _____ 9,000 2,000 50,100 51,900 71,800 10635-2 - 03/OB/B9 - WKC:kBt EID951508 C-8 LEVELS IN DRINKING WATER PARKERSBURG DISTANCE FROM NO. 5 OUTFALL (MILKS) 7.50 UPSTREAM PPB 1984 1987 1988 ND ND WASH WORKS 0.50 UPSTREAM ND ND ND LUBECK 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 10635-3 -- 03/08/89 - WSCikat EID951509 I I i 0 IUj I tQ 6 t s -- 01 T-< I.0 ^^^ u 00 0091- OO'S^- JL33./ 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

AR226-2152 R.F.

AR226-2176 Current Permit/Appllcatlon/PDF # 1823A 815D 815D 1353A Pra-Existing 614A 614A 781 1953 2365A Note: For some vents the surfactant rate Is less than the total particulate reported in Air Emissions Inventorywhich can Include polymer dust, Note: If emissions are sent to T6I2CE then emissions from T6IFCE are reduced.

AR226-2216 Chris E Shoop 11^/2001^)3:08 PM To: ce: Subject Ralph M Aten/AE/DuPont@DuPont Debbie J Mulrooney/AE/DuPont@DuPont Particulate / C-8 Emissions from SemiwoiKs Ralph, In about August of this year 1 used information from the semiworks air permit application that you were preparing to provide data to the state on total C-8 emissions for the site.

AR226-2437 XHTKROFFTCE MEMOR&HBTO Date: FroBi: Dept: Tel Ho: 13-Jun-1995 10:53am KAZUAKI SUZUKI SUZUKIKK AT Al AT YOVXOO DUJL-MDF 81-543-34-2233 TO; Roger J.

AR226-2467 "Roger J.

^;:^..!

AR226-2805 MEMORANDUM To: From: Date: Subject: Gerald Kennedy Michael DeLorme 19 June 2002 APFO Aerosol Generation and Particle Size Introduction Inhalation toxicology studies with APFO in rats conducted by Haskell in 1980 demonstrated biological correlations between the airborne concentration of APFO and toxicological responses in exposed rats.

AR226-2814 TRADE SECRET Study Title H-24750: Static, Acute, 48-Hour Toxicity Screening Test with Daphnia magna AUTHORS: Barbra D.

w fe ^ && 0H} 'r(Ul ^ 0) 6S?

AR226-3037 Study Title Eye Irritation Test with H-21460 in Rabbits Laboratory Project ID Haskell Laboratory Report No. 82-96 Author Tracy A.

AR226-3045 Study!