AR226-2235 Steven L Grise 12/14/2001 09:50:47 AM To: cc: Subject: Robert F Pinchot/DEV/AE/DuPont@DuPont, Bernard J Reilly/AE/DuPont@DuPont, Debbie J Mulrooney/AE/DuPont@DuPont Steven L Grise/AE/DuPont@DuPont C.O.

AR226-2259 Debbie J Mulrooney ' 02/20/2002 12:47 PM To: Todd M Krieger/AE/DuPont@DuPont cc: Steven H Swearingen/AE/DuPont@DuPont, Robert F Pinohot/DEV/AE/DuPont@DuPont Subject: Re: Environmental Impact Study Q The new stack height is much higher than what we modeled (85 vs. 55 ft) and the new flow rate is also much higher (12,400 scfm vs. 4710 scfm).

Fluoropolymers Monitoring Technical Group September 18,2003 AR226-2339 EXP000593 Agenda Program Overview - EPA Suggested Priority Change Discussion Landfills Soil Sampling Biota Sampling Possible Sources of Exposure EXP000596 APFO M anufacture // Fluoropolymer Summary Processing * Articles of Commerce EXP000597 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 Timing In place Complete Ongoing Ongoing >99% Emissions Rduction APFO M anufacture Air Dispersion Modeling Water Monitoring Fluoropolymer Summary Processing Articles of Commerce EXP000598 LOI ECA \c Non-Fluoropolymer Products Program Timing Commitment to not sell APFO outside fluoropolymer industry LOI Ongoing EXP000599 >99% Emissions Reduction APFO M anufacture Air Dispersion Modeling Water Monitoring Fluoropolymer Summary Processing - Fluoropolymer M anufacture * Dry Resin Processing Articles Aqueous R esin Processing * of Commerce EXP000600 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-LOI pre-LOI LOI LOI/other Other Other Timing Complete 2006 12/31/03 Ongoing (Today) (Today) >99% E m ission s Reduction APFO M anufacture Air Dispersion M odeling Water Monitoring Fluoropolymer Summary >50% Emissions Reduction Fluoropolym er M anufacture Air Dispersion M odeling Water Sampling/ Monitoring EXP000602 LOI ECA Processing/Articles o f Commerce Program Timing Articles of commerce testing - "New " Articles of Commerce - "Aged" Articles of Commerce Dispersion processors material balance Incineration testing LOI ECA LOI ECA 12/31/03 2004 12/31/03 6/30/04 0CPOOO6Q4 >99% E m ission s Reduction APFO M anufacture AnDispersion M odeling Water Monitoring LOI EGA Fluoropolymer Summary >50% Emissions Reduction Fluoropolym er M anufacture Air Dispersion M odeling Water Sampling/ Monitoring ---------------------------------------------------------------------------- Articles o f Commerce Testing Dispersion Processors Material Balance Aged Articles o f Commerce Testing Incineration Testing EPA Proposal Delay "Articles of Commerce" testing and goal date and accelerate "Air dispersion modeling" at Fluoropolymer manufacturing sites in order to expedite the process to determine if additional monitoring (and ECA) is needed at these facilities.

AR226-3360 > ATMOMSPEHCAEHLRACINCOISHLMOIFSLESOTFCIMnFFEL2SnU+1OACNRHDO2CTDHEE2LGOORHMAEDRATION Valrie Bossoutrot*, Tanya Kelly#, Isabelle Magneron*, Wahid Mellouki*, Howard Sidebottom#, Klaus Wirtz and Georges Le Bras* * LaCbe*onrCtarthooeidmreeiEsdtsertyuCdDoimeopsbaAurtsmmtiboeinnetn,ettUaSlneyisvstedremslietMyseRCdoiatlelcertrgifesn,,eDCou,NbVRliaSnleO(nIcRrliLaa)(nSsP()F) SETAC Prague 18-22 April 2004 Context : Long chain perfluorinated carboxylic acids (PFCAs, CnF2n+1C(0)0H, n = 6-12) oPbFseCrAvesd:innfoisthgaenndermaallmymusaelsd directly in consumer or industrial m- parteesruimalasbly degradation products of precursor chemicals : potentially FTOHs Fluorotelomer alcohols (FTOHs, CnF2n+1CH2CH2OH) : --UPsreosd:uicnttieornm: e5dxi1a0te6skignymra1n(u(82f0a0%c%tupnroeolynomfpdoeirlvyicemraseperpipclricoadtuiocntss)) -- AOtbmseorsvpehdeirnicthsoeuartcmesos:pdheegrread(uaptioton 1o35poplgymnre3r) and non polymeric materials - EthxapteicntceodrtpoorpaatretiFtiToOn Hinsto(?

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RECEIVED 0PPT NCIC 2003 JUL -7 HM.-00 Telomer Research Program MfSfm wmmmm Ciarlarti Report Title: 8-2 Telomer B Alcohol: Acute Oral Toxicity - Fixed Dose Method Author(s): Carol Finlay CEnovnitrroancmtoern:talES.Ic.iednucPeso,nNt edwe aNrekm, DouelraswaanrdeCo., Flaskell Laboratory for Health and Study DCIInnaoitLtmeiaispf:teilo:entiA:onpA:riplSr2iel5p2,t,e2m2000b01e1r- 1M7,a2y00117, 2001 bSytuodryalOgbavjeacgteivteo:mTaoleaasnsedsfsetmhealaecruattes.oral toxicity of 8-2 Telomer B Alcohol when administered wmroiMnebegotasrirueagttlergahavrlatrie,istadiytmnrlsiteaecevnalrtiidnvendaddtesluinsaMgbcnnpaedesotitososohtfun-fodosdrtporeosgess:aanpinndogSgenroidonsareugnitpnlidwess0oweou.rfr5eeea5r%ledmfdaasaamosaqdtscaueeergdesidfeoimaoucoifselary2dlmed0toyh0eansrt0nhfodpuymuonlg5gschcttf-eoi8adolu-slno2utte.sltTidohnseefgeleo,smdtmwuaaydeelyrer1e.Br6aaRtaAdsnam.ltdcsiOonewhixbsoeastlreem/errkveigwndaeetbibdiyogynghbsreooddfsoysarlty for sFiignndsinogfst:oxNicoitydewatehrse osececnu.rreNdo(gmroosrtsallietsyi/onnusmwbeerretrseeaetnedu:pmonalpeasth0o/5l;ogfeymeavlaelsua0t/i5o)n. .

From: B fW 4 J R*41y on 01/20/2002 09 22 AM To: ASNppQonvirorcorp com, rhamsigenvironccrp :cm cc: M Ann Sradly/STB/DUP@OUP *ohn R 8owman/AE/DuPont@QuPont Subjsct: 10 ug/L m Environ Hazard Narrativa ------------------------- Fcrvrarded oy Barnard j RetiiyiAE/CuPcni on 01/20/2002 09 23 A M ---------- From: Bernard J Reilly on 01/20/2002 09 2i AM To cc: Subject: Gerald L Kennedy/AE/DuPont@DoPont Robert W Rickard/AE/DuPont@OuPont David M Rurak/AE/DuPontjgDuPont, M Ann 8raaley/S"rB/0UP@0UP, John R Bowman/AE/DuPontOuPont.

-hl 4' NOTE TO FILE - OPPTS 50639 DATE: October 23, 2000 FROM: Karen Lannon SUBJECT: Revised PFOS Hazard Assessment _M sia.6 03if& Attached is a revised PFOS Hazard Assessment Minor changes from the text in the original version (August 31, 2000) are found on pages 6, 7, and 26, and concern the corrected 1974 reference to Biesemeier and Harris.

Katherine E.

GLP10-01-02.

GLP10-01-02; Interim Report 36 - Analysis of PFBS, PFHS, and PFOS in Groundwater Samples Collected from Decatur, AL, 3rdQuarter 2012 Study Title Analysis of Perfluorooctane Sulfonate (PFOS), Perfluorohexane Sulfonate (PFHS) and Perfluorobutane Sulfonate (PFBS) in Groundwater, Soil and Sedim ent for the 3M Decatur Phase 3 Site-Related Monitoring Program Data Requirement EPA TSC A Good Laboratory Practice Standards 40 CFR Part 792 Study Director Jaisim ha Kesari P.E., DEE W eston S olutions, Inc. 1400 W eston W ay W est Chester, PA 19380 Phone: 610-701-3761 Author Susan W olf 3M Environm ental Laboratory Interim Report Completion Date Date of signing Performing Laboratory 3M Environmental Health and Safety Operations Environmental Laboratory 3M Center, Bldg 260-05-N-17 St.

3M ENVIRONMENTAL LABORATORY REPORT NO.