# DuPont Telomer Research Progress AR226-3326 # Clflpariy Sanitized.

Buck = DuPont Up in Enterprise WP.i0l.mBionxgt80oD4n0E,2, 1ES9L8.3400.23-052331 fiR 365 477 1EO2PP0PAiTECDaosontc,suiRtmoueionomtn6CA4v2o8e.mnuee,OfNfiwce AWuans:hMiangrtyoDno,miD.nC.ia2k006 Dear Mary March 28,2003 eEooftnhPiaeleTLaeaslemomo fiTenrd Relencsleo MooaascechdsimhenPdfr2ooPPe0rgrmrr8oaoadtrmLvuicot(tnorMdpefa.scnrminobyinng.emFthoeaTeeoglotmeheerTemRanEpuCfC1ahcnataurcVitonlrguthnpiternaoTrgcyesoCsooRrsmunmbimittmteeeond tonnTsoberhsa,lf Pedtepistmcieiroisnpst2iom0onn01taes TswehlilhsaessaccuoobpmrymioefsEdnrioicets.oodnKpincesrsiaoe'nslvoben ooskCfoopnu "oFlprueomreie nrtated.

AR 226 _ 0606 1p DuPont Haskell Laboratory for Toxicology and `Industrial Medicine July6, 2000 EPAMr.

Currently, Exygen performs all C-8 water sample analysesfor DuPont.

DUPONT DE NEMOURS ASHINGTON WORKS OLID WASTE MANAGEMENT NITS / SAMPLE SITES FOR CRA VI ELEC.

|| AR226 3232 DuPont TRADE SECRET Study Title H-24768: Developmental Toxicity Study in Rats Laboratory Project ID: DuPont-6515 "TEST GUIDELINES: U.S.

General Comments Additional comments to be added to submitted document No. 4233 1.

Liver cancer showed also some excess compared to other DuPont workers (RR = 1.6, 0.6-2.8).

Later DuPont developed a similar product named Freon 22TM.

The receptor level determinations and report will be audited by the QAU of DuPont.

The receptor level determinations and report will be audited by the QAU of DuPont.

AR226-1838 DuPont/3M Meeting with EPA August 25, 2004 1:00 PM-4:00:PM Agenda B ackgroundiObje.ctives Received OPPT NCIC 2004 SEP-3 Data Review Linear/Branched Study Worker Exposure Data Biology Review Path Forward `cA~ ~J~'L ~/~/0y.

Dupont, Letart Landfill on a monthly basis. .Please call me if you have any questions.

fin R-3(f~lf7 > 000426 C-8 TREND IN BLOOD FEP PROCESS OPERATOR (17) FEP SERVICE OPERATOR (18) RAW DISPERSION PROCESS OPERATOR (18) GRANULAR PROCESS OPERATOR (7 ) FINE POWDER SERVICE OPERATOR (19) MONOMER OPERATOR (31) C-8 IN BLOOD PPM) 1981 1982 1983 1984 1985 1986 1.53 1.48 1.14 1.09 1.09 1.22 0.60 0.59 0,57 0.53 0.53 0.56 7.66 6.67 6.36 6.38 5.96 6.57 3.44 3.12 2.64 2.70 2.38 2.93 2.25 2.07 1.74 1.59 1.37 1.37 1.01 1.02 0.83 0.82 0.81 -- ALL TEFLON * OPERATORS (490) 0.98 0.92 _ MSB mm 00042 * DuPont's registered trademark, for its fluorocarbon resin a \ 003546-566 - 06/09/87 - RJZskst

From: To: CC: Sent: Subject: Attachments: Berkoski, Daniel T CIV NAVSEA, SEA 05 Hunstad, Mary P CIV NAVSEA HQ, SEA 05 Fletcher, Steven G CIV NSWCCD PHIL, PA 12/1/2014 3:04:54 PM EPA PFOA Stewardship Program EPA Commitment letter.pdf; EPA PFOA FAQ.pdf; factsheet_contaminant_pfos_pfoa_march2014.pdf 3 documents: 1) EPA Commitment letter - EPA's letter to Dupont.