Document vV0pxjmoXkVwB53pm06jkj4J8

3m 55, P SKaatmheVriin:ee PEr.eRsiedsedn,t PhD. . SIaMfetEynOropnemrenotnal Heath and F$9000OPBaBu,sh3M3AN3v1$e5,133Bu:i3l3d1ing 42.26.26 Sa fREeCtEIVcEaDl,c OFeCA 0208- 00373 ee os FEBI! MM T:28 BEHQ-GO0">73 VIA UPS NEXT DAY AIR Ar224- 1929 DRoocoumme6n4t28Processing Center (Mail Code 7407M) OAtftfeincteioonf:PoTllSuCtiAonP(er)evCeonotridoinnaatnodrToxics U12S0.1 ECnovnisrtointumteinotnaAlvPernouteec,tNi.onWA.gency Washington, D. C. 20460 aps~n0 oc con fa Re: TSCA Section 8() Supplemental Notice: Sulfonate-based and CSaErHbOoQx-y0l3i8c1-.b0a3s9e4d;FSlEuHoQro-c0h5e9m8i-ca3l7s3, Docket Nos. SEHQ-1180-374; Dear Sir: 3M is submitting this notice to supplement ts previous submissions on sulfonyl and carboxylic-based fluorochemicals. 3M has recently received the enclosed analytical reports with data for water samples {taken from municipal wells for three Minnesota cities -- Cottage Grove, Hastings and OMaikndnaelseo.taTDheepasarmtpmleinntgooffHtehaelstehw(eMllDsHo)c.curred in cooperation with city officials and the Each sample was analyzed for perfluorooctane sulfonate (PFOS) (CsF7SOsH) and pJeimriftlouforoo0c.0t2a5npcairctsacpiedr(bPilFlOioAn)(p(pCb7)F1asnCdOaOHl)o.werTqhuean3iiMfiscaamtipolninligmihtadof40.l0o5we0rpdpbe.tection Neither PFOS nor PFOA was detected in anyof the municipal well samples from Cottage Grove and Hastings with the exception of one sample from Hastings where PFOA ls dOeatkedcatleed,bPeFlOowS tahnedlPowFeOrAquwanetriefidceatteicotnedliimints. oImnetohfethmueniwceilplaslbwuetllnostaminplotehserfsr.omTH3E 222 average PROS and PEOA levels for he well sim wer below | pb. Resampiingan3dZl aLniamliytseids osafmtphleiOnagkadlasloeowceclulrsrebdyfbrootmh t3hMe taanpdatM3DMH'scDoynnfieromnedLLthCisfwaecilllitsyylsotceamteadv8fig3e7=,5! Oakdale and indicated similar PFOS and PFOA levels. -= MWaDtHe,r Atchte,"4p2riUm.aSc.Cy.agenc3y0"0 ientMsienqn,eshoatsaesftoarbpluirshpeodseHseoafltthhe-BafesdeedraVlalSuaefes D(rHiBnVkSi)ngof e1xppalratinpeedr,b"il[lei]oxnp(opspubr)e taondco7mpppobunfdorsPaFt OcoSncaenndtrPaFtiOoAnsrbeespleocwtitvheeliyr. HABsVMDisHnothas WEEAT 283116 / - oo. DF(oceourmnen,tPr2o0ce8ssing Centergh Codeet) dcaotnasitdoetrheed ptuoblpiocs,eMaDheHalstthatriesdk,theavte"ntohveerwaatelriifsetciomnes.i'deIrnedcosamfmeunfoircaaltliunsgertsh,esiencwlautdeinrg infants, children and pregnant women." bIny voiuerwoowfnthreevMiDewHo'fsthceonecxltuesnisoinvethdaatttahebawsaete--r3isMsadfoee-s- naoctobneclliuesvieotnhawthtihcehseisdsautpapmoeretted the TSCA Section 8() "substantial risk" reporting threshold. Nevertheless, 3M has decided to report these data as a precautionary measure, recognizing the ongoing work by U.S. EPA to assess fluorochemical exposure pathways and potential risks. If you have any questions, please do not hesitate to contact Michael A. Santoro at (651) 733-6374. Sincerely, Katherine E. Reed Staff Vice President Environmental, Health and Safety Operations EDnCcTlIosSu0r3e ! ALdemitnisftiroamtoPr.,BCliotoyomgfrOeank,dDailreecttooOraEkndvailreonWmaetnetralSyHsetaeltmhCDuisvtiosimoenr,(MJaDn.H21a,nd20C0.5)W,aalvdariolna,blCetaty hpioakdlemn.us. 2 MDH "Oskdale Wells FAQs" (Jan. 24, 2005), availabea hitp:/fwww.c oakdalemn.us.