Ms.&.

Katherine E.

NORTHERN KENTUCKY OFFICE SUITE 340 1717 OKIE HIGHWAY COVINGTON, KENTUCKY 41011-4704 606-331-2838 513-381-2838 FAX: 513-381-6613 DAYTON, OHIO OFFICE SUITE 900 110 NORTH MAIN STREET DAYTON.

Toxicological Summary AR226-1752 PFOS Dietary Chronic Definitive Reproductive Study: Northern Bobwhite Test Substance: Perfluorooctanesulfonate (PFOS) Structure: 1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro, potassium salt.

A R m - 0 H6f| Attachments to Letter to C.

qrr Charles Auer 05/16/2000 11:11 AM RECEIVED O P P T HC1C 2000S E P -6 PH 12: 57 e2G 0 6 2 - 3 To: cc: Subject: Barbara Leczynski/DC/USEPA/US@EPA, Mary Dominiak/DC/USEPA/US@EPA, Frank Kover/DC/USEPA/US@EPA, Ward Penberthy/DC/USEPA/US@EPA, Karen Lannon/DC/USEPA/US@EPA Phaseout of PFOS fyi Forwarded by Charles Auer/DC/USEPA/US on 05/16/2000 11:17 AM Charles Auer 05/16/2000 11:06 AM To: Charles Auer/DC/USEPA/US@EPA, blnetti@iss.it, John.Bucdnl@ec.gc.ca, "IMCEAFAX-3001+5ECHADJICHRISTIDI+2C+20Konstantina-fax+5E3A23+5E3018662968+5E"@oecd.or g, shchung@me.go.kr, theresa.gilgallon@cec.eu.int, addeke@lss.it, karen_florlnl@edf.org, amst@baua.do.shuttle.de, bjorn.hansen@jrc.it, hasa@env.cz, mark.hyman@ea.gov.au, "IMCEAFAX-3001+5EICONOMOU+2C+20Maria+5E3A23+5E3016465123+5E"@oecd.org, geir.jorgensen@sft.telemax.no, Rainer-Kurt.Koch.RK@bayer-ag.de, Thaly.Lakhanisky@iph.fgov.be, ivarl@kemi.se, majka@bware.imp.lodz.pl, matejova.jana@flora.lifeenv.gov.sk, TM-TNG@mhw.go.jp, laurence.musset@environnement.gouv.fr, jrn@mst.dk, esa.nikunen@vyh.fi, caria.piccinni-leopardi@cec.eu.int, raimund.quint@bmu.gv.at, rosenbaum@biac.org, esilber@epi.umaryland.edu, urs.staempfli@buwal.admin.ch, nagata-reiko@miti.go.jp, roger_tregunno@detr.gsi.gov.uk, Hty@mst.dk, ungvary@elender.hu, kees.van.Leeuwen@rivm.nl, vickersc@worksafe.gov.au, jwillis@unep.ch, younesm@who.ch, Dian.TURNHEIM@oecd.org, Naoyuki.YASUDA@oecd.org, Lesley.ONYON@oecd.org, Oscar Hernandez/DC/USEPA/US@EPA cc: robert.visser@oecd.org, robert.donkers@cec.eu.int, Susan Wayland/DC/USEPA/US@EPA, William Sanders/DC/USEPA/US@EPA, Pep Fuller/DC/USEPA/US@EPA, milroy.breck@epamail.epa.gov, ig232001@wp-gate.bmu.de, Priscilla Flattery/DC/USEPA/US@EPA Subject: Phaseout of PFOS I would like to draw your attention to an important development in the US which concerns a persistent, bioaccumulative, and toxic chemical.

Report EO1-1256 PFOS: A Reproductiun Study with the Mallard Study Title A nalytical Phase Report for PFO S : A Reproduction Study w ith th e Mallard Data Requirement FIFR A Subdivision E, Section 7 1-4 O E C D Guideline 206 Author Lisa A.

January 10, 2005 Via Federal Express RECEIVED %(m I !

AR226-2175 Chris E S h o op 08/08/2001 05:23 PM _____________________________ To: Debbie J Mulrooney/AE/DuPont@DuPont cc: Robert L Ritchey/CL/DuPont@DuPont, M.

AR226-2262 ISC Modeling Methodology and Results Emission Source Information The ISC3 model was used to calculate ambient ground-level vapor concentrations and deposition rates for year 2000 actual C8 emissions from the Washington Works site.

DuPont 2004 Multi-Media Sampling Plan WV and OH January 15, 2004 AR226-2354 EXP000190 Jammy 15,2004 DuPon, "Phase 2" Media to be Sampled bv DuPont in 2004 in WV and OH Air Private Water Sources Public Water Sources Soil Biota EXP000191 [above listing excludes sampling required by permit] January 1 5 ,2 0 0 4 DuPont DuPont Washington Works Area Air Modeling/Samnling Completed - Air dispersion modeling completed and updated for ambient air concentrations (Time periods: year 2002 and 9/02 - 8/03, AR226 and ECA docket) In-progress - Fence line sampling in progress to compare results from ambient air sampling and air dispersion modeling to understand how modeling predictions relate to measured ambient air concentrations EXP000192 January 1 5,2004 DuPont 3 Air Objective: Compare results from ambient air sampling to air dispersion modeling.

AR226-2357 Andrew S Hartten 02/20/2004 10:46 AM , To: Mark Houlday/AE/DuPont@DuPont cc: Subject: Re: Proposed Monitoring Locations-Need to Discuss Please print, thanks!

AR226-2816 Trade Secret Study Title j^HHj^TVvo Year Oral Toxicity-Oncogenicity Study in Rats Peer Review of Ovaries A u th o rs Peter C.

TRADE SECRET Study Title H-23926: Biopersistence Screening 10-Dose Oral Gavage Study in Rats Laboratory Project ID: DuPont-2920 DuPont-2920 AR226-3159 Author: Carol Finlay, B.A.

TRADE SECRET AR226-3208 DuPont-8864 Study Title H-25124: Corrositex In Vitro Test Laboratory Project ID: DuPont-8864 Author: Carol Finlay, B.A.