AR226-2402 INTEROFFICE MEMORANDUM Dates From?

AR226-2413 ,,,,28/91 07:13 O M !

AR226-2434 t.fc BRANDERA AT A1 AT EU0IS2 02/18/94 02:27 PM To- RIETBRG AT A1 AT EU0IS2 , HUISMAW AT A1 AT EU0IS2 , QUARLES AT A1 AT WWPS , NISHIKAY AT A1 AT WWPS , AREA AT A1 AT YOVXOO , SAWATAI AT A1 AT YOVX00 , PRIMUSCJ AT A1 AT WWPS , 2IPFEL AT A1 AT WWPS cc: YOKOYAK AT A 1 AT YOVXOO Subject: First draft C-8 sampling + analysis procedure Tor see distribution list FromsR.A.

AR226-2455 Ohio River monthly average flows at Cincinnati, OH River flow data from <ftp://www.lrd-wc.usace.army.mil/Monthly_htm/> Assume: 1 ft3/sec= 0.0283m3/sec; 1 m3 = 1*10A6 cm3; 1 cm3 - 1 mL Estimated Estimated Estimated Mo-Yr Measured Long-term normal flow, of normal, flow, ft3/sec % ft3/sec normal flow. m3/sec normal Estimated flow, normal m3/mo flow, L/mo Jun-98 131,400 175 75086 2.12E+03 S.51E+09 5.51E+12 Jul-98 94,452 211 44764 1.27E+03 3.39E+09 3.39E+12 Aug-98 28,387 80 35484 1.00E+Q3 2.69E+09 2.69E+12 Sep-98 21,200 74 28649 8.11E+02 2.10E+09 2.10E+12 Oct*98 21,065 77 27357 7.74E+02 2.07E+09 2.07E+12 Nov-98 21,400 40 53500 1.51 +03 3.92E+09 3.92E+12 Dec-98 34,548 35 98709 2.79E+03 7.48E+09 7.48E+12 Jan-99 178,190 131 136023 3.85E+03 1.03E+10 1.03E+13 Feb-99 134,860 81 166494 4.71E+03 1.14E+10 1.14E+13 Mar-99 180,260 85 212071 6.00E+03 1.61E+10 1.61E+13 Apr-90 118000 66 178788 5.06E+03 1.31E+10 1.31E+13 May-99 60226 49 122910 3.481+03 9.32E+09 9.32E+12 Total 1.02E+06 1.18E+06 3.34E+04 8.74E+10 8.74E+13 C8 discharge to Ohio River in 1996, ibs 40600 RJZ0154QO EID137010 t C "t Estimated C8 C8 discharge concentration to Ohio River in Ohio River, in 1996, kg kg/L Estim ated C8 concentration in Ohio River, mg/L Estimated C8 concentration in Ohio River, ug/L 18416 2.11E-10 2.11E-Q4 0,211 RI2015401 BXD137011

AR226-2584 (BUSS DuPont Engineering May 7,2002 \ ' George R.

AR226-2589 BEWSHTOCLOEPDYOACVUAMILEANBTLE .'

RECYCLED \ 00 AR226-2620 DuPont Telomer Manufaturing Sites: Environmental Assessment of PFOA Levels in Air and Water - Appendix D (November, 2004) Appendix D AR226-2620 Supplemental Data Report to: DUPONT TELOMER MANUFACTURING SITES: ENVIRONMENTAL ASSESSMENT OF PFOA LEVELS IN AIR AND WATER (September, 2003) Draft Page 1 DuPont Telomer Manufaturing Sites: Environmental Assessment o f PFOA Levels in Air and Water - Appendix D (November, 2004) Additional Data Note all data highlighted in yellow has been reported in the original report - DuPont Telomer Manufacturing Sites: Environmental Assessment o fPFOA Levels in Air and Water (September, 2003).

RECYCLEO OoJ AR226-2660 RESEARCH , Precise Research.

AR226-2700 AR226-2700 TORONTO WORKSHOP MATERIALS Septem ber 13-14,2004 ) A n (E-Tate (Perspective John Gannon DuPont Central Research & Development, Wilmington, DE M B fe I | The miracles o f scien ce] 1 isiderations for Thou What is the Source of PFCA's in the Environment?

AR226-3007 DuPont HLR 696-92 Study Title Subchronic Inhalation Toxicity Study with in Rats Laboratory Project ID Haskell Laboratory Report No. 696-92 Author Hanan N.

AR226-3075 snidv Title Inhalation Toxicity Screen wi rf hnrtflP> Project.1C HL-1997-00600 Author David P.

AR226-3086 DuPont H L Q -f 998-00729 Study title A cute D erm al Irritatio n /C o rro sio n Study w ith H -22481 in R ab b its FINAL REPORT H askell Laboratory P roject ID : H L O -1998-00729 P& dbm iine Laboratory Project ID : W IL-189160 O rganization for Econom ic C ooperation and Development (O EC D ), P art 404 (1992) European Econom ic Com m unity (EEC) 92/69 Annex V - M ethod B 4 (1992) 1 A uthor Tom G .

AR226-3138 DuPont-3615 TRADE SECRET Study Title H-24256: Eye Irritation Test in Rabbits Laboratory Project ID: DuPont-3615 Author: Deborah A.

AR226-3178 HaskaenlldLInabdoursatrtioarlyMfoerdTicoinxeicology June 11, 2001 TO: ilot Developmental Toxicity Study in Rats cc: L.

9 457 TRADE SECRET M 2 - 3A 7r DuPont-8685 Study Title H-24678: Two-Week Inhalation Toxicity Study in Male Rats Laboratory Project ID: DuPont-8685 Author: David P.