Robert Rickard DuPont Haskell Laboratory Elkton Road, P.O.

AR226-3125 DuPont-3105 HASKELALNLDAIBNODRUASTTORRIAYLFMOERDTICOIXNIECOLOGY H-241T1O9:FSATTAHTEIACD, AMCIUNTNEO9W6-SH, OPiUmRepShCalReEs pErNoImNeGlasTEST PURPOSE: Ttheisst cisonacreanntgreatfimondsinagnsdtuddaytadmeseiagsnuerdemtoepnrtsovaitdpereadneetesrtimmianteedoifnateqruvaatlisc. toxicity using fixed GENERAL INFORMATION WORKMHRSYEAAQNSTSKUOEEREENRLISYAVTLMLICNNSTEUU/CEMMCOSOTBBDEDEEEDRRES1 NOTSEUCBOBCNONMOOOTIMTTKAETPSMNBOEPIUOORSNMI'NOASTSKBNIOOETIRDNS:!

Rurak ^ Safety Health & Environmental Manager DuPont Pluoropteducts ASH02B121 EID781401 EID781401

Does not contain TSCACB1 Page 1 of 2 DuPont-4003 TOHF-2A4T39H0E: ASDTAMTIINCN,OAWCUST, PEim96e-pHhaOleUsRprSoCmRelEaEs,NCIONGNTTIENSUTED TEST CONDITIONS Nominal concentrations tested: 0,1.0,10,100, and 1000 mg/L.

Malinowski Enclosures Paper copy Pascagoula Baseline Study/Report for First Chemical Corporation (October 2006; Project No. 18984786.06051/508800) [40 pages] CD titled DuPont FYI Submission (10.16.06) - Pascagoula Baseline Study/Report E.l. du P on t de N e m o u r s and C o m p a n y

cKusick - DuPont - ].2/14/8~~ two.

While DuPont does not believe this information is substantial risk information reportable under TSCA 8(e), DuPont is submitting the information to the TSCA S(e) office in view of the Agency's continued intereszn perfluorinated substances.

Phase Diagram Tor C-8 0) i . 100 Temperature (C) The experimental data used to generate the above diagram is from three different sources: 3M and two within DuPont.

DuPont's letter on the CBI issue also is enclosed.

Robert Rickard DuPont Haskell Laboratory Elkton Road, P.O.

AR226-2593 Mark Houlday 08/1S/2002 12:44:54 PM To: cc: Subject: Isidores J Zanikos/AE/DuPont@DuPont Andrew S Hartten/AE/DuPontQDuPont Washington Works Talking Points Izzy here are some topics that you may wish to discuss: GIST Meeting - went well.

Buck - DuPont 2003 APR -9 PH 2- 25 <W k Chemical Solutions Enterprise P.

AR226-3091 DuPont HL-1998-01441 HASKELALNLDAIBNODRUASTTORRIAYLFMOERDTIOCIXNIECOLOGY H-227T6O2:FSATTAHTEIACD, AMCIUNTNEO9W6-SH,OPiUmRepShCaRleEspErNomINeGlasTEST PURPOSE: Tthesist cisoancreanntgreaftiionndsinagnsdtuddaytadmeseiagsnuerdemtoenptrsovatidpereadneetestrimmianteedoifnateqruvaatlisc. toxicity using fixed GENERAL INFORMATION WORKMHSRYAAENQSTKOEURENELISYTALTMELNNSSTTUU/CECMMOS0TDBBDEEEESDRER;f::|,Ji/|2H27B6_2 NOTSECUBOBCCNONMAOOOTSIMTTAKREPTMSENOBEPPGIUSORONUIIM'ONSATSRTSKBINIOORTETENYYRRSD;;::| %af TEST CONDITIONS Nominal concentrations tested: 0,0.5,1.0,50,500, and 5000 mg/L.

AR226-3092 DuPont HL-1998-01442 HASKELALNLDAIBNODRUASTTORRIAYLFMOERDTIOCIXNIECOLOGY H-22762: STATIC, TAOCUDTaEph4n8a-HmOaUgnRaSCREENING TEST PURPOSE: Tthesist cisonacreanntgreaftiionndsinagnsdtuddaytadmeseiagsnuerdemtoepnrtsovaitdpereadneetesrtmimianteedoifnateqruvaatlisc. toxicity using fixed GENERAL INFORMATION WORK HRAEQSKUEELSLT NNUUMMBBEERR:: MSYANTOENRYITAMELSST/TCECQSTODEED:S!

AR226-2272 xcr""" ^f :-- 9' Dabbie J Mulrooney 04/10/2002 10:22 AM To: cc: Subject: Catherine A Barton/AE/DuPont@DuPont Wash Works C8 Max Concentration Cathie, You asked me the other day for the maximum concentration value for the Washington Works C8 modeling.