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p= BE $Z--0Q3309//--1/3 78 A am DuPont Haskell Laboratory MR AR 216 _ 102g i-- E ewan ot ie ne 53ca30 GDierreacltdorL,.AKpeplnineeddyToxicology DP.uOP.onBtoxHa5s0kell Laboratory Elkton Road NPheownaer:k,(3D0e2l)aw3a6r6e-521599714-0050 FYI-90-801378 n" = Z=oaapE VIA FEDERAL EXPRESS i RDoocoummeGn9t9CEoansttroTlowOeffricAeT(T7N4:07)FYI - Office of Pollution Prevention and Toxics 4U0.1S.MEnSvtirreoctn,meSnWta.l Protection Agency Washington, D.C. 20460-0001 8501000001 Dear Sie/Madam: - evLoonons March 8, 2001 Pro ru O@TEIRS Ne 077 "This leter is in reply to Richard HL Hefters eter dated February 14, 2001 to me concerning the above-referenced FYI submission.

Lhe AR 226 _ 1105 3M Lifetime Drinking Water Health Advisory for Perfluorooctanesulfonate Revision Date: April 19, 2002 Supercedes: July 7, 1998 `This document establishesa Lifetime Drinking Water Health Advisory (DWHA)of 4 pg/L (ppb) for perfluorooctanesulfonate (PFOS).

AR 226-1110 BIBLIOGRAPHY OF LITERATURE RELATING TO PFOS AND N-EtFOSE ALCOHOL INDEX FOR JULY 2002 SUBMISSION 1.

I 3CoMrpMoerdaitceaTlovDiecpolaorgmyent S3tMPCaenteNr,NBuSiSld1i4ng1020200-202 1089 seHa- 0103-00373 MRag6- [205 3M -- CertifiedMail A DEHP-- Ro - 313 DAE EE scons Document Processing Center Officeof US EPA Pollution Prevention and Toxics 1200 Pennsylvania Avenue NW.

; NATIONAL CENTRE EHACZOATRODXOIUCSOLOGY & SUBSTANCES ARR26 - 1238 on | yd a" REVIEW OF OCCURRENCE AND HAZARDS OF PERFLUOROALKYLATED SUBSTANCES IN THE UK Ny N\ pm A NON-CONFIDENTIAL OVERVIEW com 2 July 2001 yd ~ Fon = 5% 3s 30 3 CONTAIN NO CR] . 000437 E06004ns REVIEW OF OCCURRENCE AND HAZARDS OF PERFLUOROALKYLATED SUBSTANCES IN THE UK A NON-CONFIDENTIAL OVERVIEW Research Contractor: `This document was produced under contract by: Peter Fisk Associates 9, St Swithin's Road.

= --- SERVER WIAPR-9 PH 2:25 ARA2-G 1266 EE TRP Telomer Research Program A, asco Ig == Clariant 31 March 2003 Telomer Process Diagram for US EPA - OPPT DaKIN Pw i Contains no TSCA CBI 3 I re) TetraCflFuorCoFet,hylene F(CF,F),1 F(TCeFl.oGmFe,r) 8CRl,odGiHd,e1 Tel"oBumielrdiInngtBelromcekdsi"ate FTCeFl.omFe)r,BCOHl-efHin, F(TCeFl,oCmFe,r)8,CAHl,cCoHh,o0lH uAcsreydla1tecMreoantoemFeirniishtehdePmraosdutcctsommon raw material FICTeFl.oCrFme)r,CAcHr,yClHa,te0GM(o0n)oCmHe=rCH, 4 FiJnAiLsGhnedd * mAcatnuuaflacptruorciengss and Spraamcetiacneys vary by PFOAis not used or added in these processes + Generally, these processes are closed and PFOA creation aenxdp/eocrteedmitsosbieonast are very low levels ro = Telomerization was initially developed free-radical polymerization of ethylene.

"uapfd 3M Specialty' Materials W S3M17Ce3nta eor o n.

| ARR26 - 0676 i C3e04n8tRerseearchADnriavelytiStcataalColleLge,aPAboT6r30a1 tor_i_e_wswi,w.ceInntccigo.kmb | eo Phone: (814)231-8032 Fax: (814)231o-r(8114)22315-15380

PIPING DETERMINING THE PROPER MATERIALS OF CONSTRUCTION FOR A LAB WATER SYSTEM Picking the proper materials of construction for a lab water system is not as easy as one might think.

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Report E01-1256 PFOS: A Reproduction Study with the Mallard Study Title ANALYTICAPLHASE REPORTFOR PFOS: A REPRODUCTIOSNTUDY WITH THE MALLARD Data Requirement FIFRA Subdivision E, Section 71-4 OECD Guideline 206 Author Lisa A.

AR226-2339 Fluoropolymers Monitoring Technical Group September 18,2003 Agenda Program Overview - EPA Suggested Priority Change Discussio Landfills Soil Sampling Biota Sampling -*\ Possible Sources of Exposure FPA Manufacture Non-Fluoropolymer Products P Impu POS Ma Fluoropolymer Manufacture S -0 0 0 0 01 (0 Ul High Heat Treated Applications Low Heat Treated Applications Point Source Emissions Population Exposure Material Flow Trans formatio to PFO APFO Manufacture Fluoropolymer Summary Processing Fluoropolymer Manufacture Dry Resin Processing Non Fluoropolymer Products Aqueous Resin Processing APFO Manufacture 99% Reduction in emissions as compared to prior manufacture Air dispersion modeling Water monitoring -- Prior Manufacturer - New technology baseline Program Plant Design LOI LOI/other LOI Tim In p Co Ong Ong >99% Emissions Reduction APFO Manufacture Air Dispersion Modeling Water Monitoring LOI ECA Fluoropolymer Summary Processing Fluoropolymer Manufacture Dry Resin Processing Non Fluoropolymer Products Aqueous Resin Processing Non-Fluoropolymer Products Program Tim Commitment to not sell APFO outside fluoropolymer industry LOI Ong >99% Emissions Reduction APFO Manufacture Air Dispersion Modeling Water Monitoring Fluoropolymer Summary Processing | Fluoropolymer _^ Manufacture Dry Resin Processing Aqueous Resin Processing LOI ECA Fluoropolymer Manufacture Global Material Balance 50% Emissions Reduction Commitment 2002 Status - 48% reduction from the baseline Monitoring/Modeling Commitments - Air dispersion modeling - Groundwater - Soil - Landfill Program pre-LOl pre-LOl LOI LOI/other Other Other Tim Com 2 12/3 Ong (Tod (Tod >99% Emissions Reduction APFO Manufacture Air Dispersion Modeling Water Monitoring LOI ECA Fluoropolymer Summary >50% Emissions Reduction Fluoropolymer Manufacture 1Mr Dispersiol[1 ^Modeling \ ^Vater Sampli]^ ^^lonitoring Processing -> Dry Resin Processing Aqueous -> Resin Processine A^^on ^ k Processing/Articles of Commerce Program nTni" m Articles of commerce testing - "New" Articles of Commerce LOI 12/ - "Aged" Articles of Commerce ECA 2Q Dispersion processors material LOI 12/ balance Incineration testing ECA 6/3 >99% Emissions Reduction APFO Manufacture Air Dispersion Modeling Water Monitoring LOI ECA Fluoropolymer Summary >50% Emissions Reduction Fluoropolymer Manufacture t\.ir Dispersior1 ^Modeling \ ^Vater Sampliing/ ^^[onitonng Processing -^ Dry Resin - Processing Aqueous -> Resin - Processing r ^ o n ^J Fluo^^lymer|]----------------------------------y Promts f Articles of Commerce Te Dispersion Processors M Aged Articles of Comme Incineration Testing EPA Proposal Delay "Articles of Commerce" testing and goal date an accelerate "Air dispersion modeling95 at Fluoropoly manufacturing sites in order to expedite the process determine if additional monitoring (and ECA) is nee these facilities.

AR226-2361 September 2002 Through August 2003 Air Dispersion Modeling Analysis ofAPFO Emissions (Revised) May 24,2004 Page 1 of 9 SEPTEMBER 2002 THROUGH AUGUST 2003 AIR DISPERSION MODELING ANALYSIS OF APFO EMISSIONS .- _..-_ -_... -..--_^-_ __.---__--.-..

AR226-3148 DuPont-3870 TRADE SECRET Study Title H-24335: In Vitro Mammalian Chromosome Aberration Test in Chinese Hamster Ovary (CHO) Cells Ramadevi Gudi, Ph.D.