Document mB41VjVYOozzy87em25wvejvZ

PPEFAASS uuppddaattee FtFrrpoo:mm//MMsDDrHH.w:-EEhnnevvailirrtoohnnsmmteeantntetaa.lml nHH.eueasalltthchivsehhazardous topics pfes/current uel. http://www.health.state.mn.us/divs/eh/hazardous!topics!pfcs!current.html PMMFDDOHHA ssattnaafdfff PccFooOnntStiintnuoueedettotoerrreemvviiienewew wtthhheeetsshttueuddriieoesusaranonddwmnmehteethahalotddhss buuasseedsdbbyvyaelEEuPPedAAsifinnortittssh22e00s11e66chhheeemaailltcthhalaasddvnvieisseoodrryytvovaballeuueessffoorr lowered andif so, PFOA and PFOS to lowered and if so, what the values shouldbe. Ths review i expected tobe completed inMay-June determine whether our own health-based values for these chemicals need to be what the values should be. This review is expected to be completed in I'vl~ i~n~ 22001~7~ aa~ndd C co~mm0u~niittYy ~meeeet~ii~nggss Wwililll bbee hheel!dd ii~n C~oattgagee GGro~vee aan~dd LLaakk~e El!m~oo. IInn tthhee mmeeaannttiimmee,, tthhee rreevviieeww wwaass ffaarr eennoouugghh aalloonngg ttoo tteellluls tushtahatt iitt wwaass pprurdeundt ttooeannloitftifyy tthhee ppuubblliicc nnooww,, rraatthheerr tthhaannaat tthhee eenndd ooff oouurr sscciieenntitiffiicc rreevviieeww,, iinnoorrddeerr ttoobbeeggiinn ttaakkiinngg sstteeppss ttoohheellpp aaffffeecctteedd rreessiiddeennttss iinn tthheeTTwwiinn CCiittieess EEaasstt MMeettrroo aarreeaa rreedduucceeuunnnneecceessssaarryy eexxppoossuurreess ttoo tthheessee PPEFCCstthhrroouugghh ddrriinnkkiinngg wwaateter.r. Since August 2016, MDH and MPCA have been working to identify al drinking water well, pubic and private, that Since August private, that may exceed 2016, MDH may exceed levels of health and MPCA have levels of health concern. Sampling efforts were focused in areas identified as been working to identify all drinking water wells, public and concern. Sampling efforts were focused in areas identified as Hlikeilytktooeeexxclceeeyedd tthhee nneeww EEPPAA hheeaalltthh aaddvviissoorryy vvaalluueess,, bbaasseedd oonn pprreevviioouuss ssaammppllee ddaattaa aanndd oouurr uunnddeerrssttaannddiinngg ooff tthhee ggrroouunnddwwaatteerr iinn WWaasshhiinnggttoonn CCoouunntyty.. SSaammppllee rreessuullttss aarree ccoommppaarreedd ttoo tthhee EEPPAA hheeaalltthh aaddvviissoorryy vvaalluueess ffoorr PPFFOOSS aanndd PPFFOOAA aass wweellll aass MMDDHH HHeeaalltthh RRiisskk LLiimmiittss ffoorr PPFFBBAA aanndd PPFFEBSS.. MMDDHH uusseess tthhee EEPPAA hheeaalltthhadavdivsisoorryyvvaalluuee ffoorr PPFFOOSSaass aanniinntteerriimm ssuurrrrooggaattee vvaalluuee ffoorr PPFFHHAxSS.. MMDDHH aallssoo eevvaalluuaatteess mmiixxttuurreess ooff PPFFCCSs iinn wwaatteerr uussiinngg aann aaddddiittiviittyy ccaallccuullaattiioonn that results in a health index value. Drinking water advisories are issued for any well where any PFC tehxacteeredssualtns iinndaivhideuaallthheinadlethx bvaaslueed. vDarliunekionrgtwheatmeirxatduvriesoofriePsFCasreexiscseueeddsftohreahneyalwtehlliwndheexrevalauney. PWFhCen drinking exceeds drinking water advisories are an individual health water advisories are ssued for private based value or the issued for private (i, residential) mixture of PFCs (i.e., residential) wells, the state provides exceeds the health index wells, the state provides bottled water value. When bottled water uunnttiill tthhee hhoommeeccaannbbee ccoonnnneecctteedd ttoo cciittyy wwaatteerr oorraa wwaatteerr ttrreeaattmmeennttssyysstteemccaannbbee iinnssttaalllleedd. W Woorrkk ccoommpplleetteedd aass ooff MMaarrcchh 22001177 iinncclluuddeess:: pPrriivvaattee W Weellllss + Over 520 private wells have been sampled (ink to map at web ste above), primarily in portions oOfvLeark5e20Elpmroi,vaWteeswteLllaskehlaavnedbTeoewnnsshaimp,pleCdot(tliangketGoromvaep, aant dweGbresyiteClaobuodvIes)l,apndrimToawrnilsyhiinp.portions + Oovf eLrak2e00Elnmeow, WdreisntkiLnagkewlaatnedrTaodvwinssohriipe,s C(ionttkatgoemGarpovaet, waenbdsGitreeyaCbolovued) IhsalavnedbTeoewnnisshsuiped.. + AOpvperro2x0im0anteewlyd1r5in0kadindgitwioantearlawdevlissohriaevse(lbinekentoidmenatpifaitedwfeobrssaitmepalbionvgei) hsapvreinbge2e0n17is.sMueodr.e wells wibealddled as needed, based on sample results. Approximately 150 additional wells have been identified will be added as needed, based on sample results. for sampling in spring 2017. More wells Ifa welis selected to be sampled, MOH will contact the well owner by mal with more. information and to If a well is selected information and to et ther permission. to be sampled, M DH get their permission. will contact the well owner by mail with more SaSmapmlpilningg wwililll ccoonnttiinnuuee uunntitill tthhee aarreeaass tthhaatt eexxcceeeedd lleevveellssooff hheeaalltthh ccoonncceerrnn hhaavvee bbeeeenn ddeeffiinneedd.. + MMPPCCAAhhaass aann iinntteerraaccttiivvee vveerrssiioonn ooff tthhee mmaapp wwhhiicchh yyoouu ccaann uussee ttoo llooccaattee yyoouurr aaddddrreessss aanndd. ddeetteerrmmiinnee fifyyoouu aarree wwiitthhiinn aann aarreeaa ooff ccoonncceerrnn.. city wells City Wells + MMDHH ccoonnttiinnuueess ttoo mmoonnititoorr wwaatteerr qquuaalilittyy aat aallll tthhee aaffffeecctteedd ccoommmmunuintitiieess ttoo eennssuurree tthhaatt tthhee ffiinniisshheedd ddrriinnkkiinnggwwaatteerr mmeeeettss tthhee nneeww EEPPAA hheeaalltthhaadvdivsisoorryy vvaalluueess aanndd ccomobimnebdPPiFFCCnsddoeonndoott eexxcceeeedd tthhee hheeaalltthh iinnddeexx vvaalluuee.. PPFRCC ccoonncceennttrraattiioonnss iinn mmoosstt cciittyy wweellllss hhaavvee rreemmaaiinneedd ssttaabbllee oorr ddeeccrreeaasseedd sslliigghhttllyy oovveer ttiimree.. EExxhhiibbiitt 33775555 State of Minnesota v. 3M Co., Court File No. 27-CV-10-28862 STATE_07420760 STATE_07429780 33775555..00000011 Other Public Well Other Public Wells + MDHs also sampling non-community, public wels (businesses, schools, churches, etc) and providing drinking water advice as needed. MDH is also sampling non-community, public providing drinking water advice as needed. wells (businesses, schools, churches, etc.) and SSuurrffaaccee W Waatteerr SaSmapmlpilinnggddeetteecctteedd PPFFCCss aabboovvee tthhee hheeaalltthh bbaasseedd ddrriinnkkiinngg wwaatteerr vvaalluueess iinntthhee ssttoorrmmwwaatteerr Saddmrrpaaliinniaanggeeg ssnyyessattreemmt.h.iTsThhdeerassiyynssattgeeemmsyhheseltlppessmttoioncdcioocnnatttrreoosll ltflhooaaotddPiiEnnCgg-iicnnontthhteeamLLiaankkaeetEeEdlmmwooataarereeraa.h. as infitated from the surface water to groundwater and affectednearbywells, manyofwhich exceed EPA and Sampling near this drainage system indicates that PFC-contaminated water has infiltrated from the surface water to groundwater and affected nearby wells, many of which exceed EPA and MDH health based values. + MMoDsHt ohfetahlteh pbraisveadtevwaelulless.ampling in ring 2017 will focus on defining the extentof SMroosutnodwf athteerprciovnatteamwinealltsiaomn apllinongginthsepcrionugrs2e01o7f twhiell sfotcoursmwoantedrefdinrianignathgee seyxsteten.t of + gMrDouHnadnwdatMePrCcAonptlaamnitnoadtioonadadliotnigontahlescuorufarscee woaftthere ssatomprmliwnagtienr2017.drainage system. MDH and MPCA plan to do additional surface water sampling in 2017. 33775555..00000022 STATE 07420781 STATE_07429781