Document 8VZJmdVGkJNXkXRoDXXXrqnze
|
Past, present and future actions
Minnesota
Pollution
Control Agency
-
his Mimesoia Pollution Control
curren`aaAbcgrteionfcnhysisn(tMdorPayC,Aoa)onkfoavacethresvahideeetwt oporpfomviededs
activities related to perfluorochemicals
Contents
(PECs) in Minnesota
What are PFCS?.....1
----
What are PFCs?
connectonto
PFCsare a family ofproprictary 3M
MiWnhnaetssothae?.concen? 11 10chemmaikcealpsrtohdautchtsavtehabereensisutsehdeafto,roidle,cSaIdNeSs,
TTT
Fetnayaoor
waste containing PFOS, PFOA and other
PFCs.
45 nF poteatapurof
SusceotTcehhognu'ard(TMpr(opdruocdeudcebdy bDyu3pMo)ntormtahyat
contain various PFCs. In 2002. 3M
stopped using PFOS and PFOA in `ScotchguardTMproducts. The company
T`ahnenoruanrceedtitlhlistphhearsePFoCutsignen20e0r0a.ted by
GACclntoaisomendosnattaonkernin.gsa3 mpin2
PMruinviactiepawlelwlesampling. 2
`Afsocarmtppilevicnasgn.dl evaluatio23n
A----
Fanaa s rMSeilaopteidnnsagmoplinamg.v..eer3
sJitoesr.
4
PFOSianvnedstPiFgaOtRio.no.f..5
Gnfomma,ton
Proo ml - In the past, Foe
NNaoonntdsrtfeaigbcnrklisccss;odockowmapCrooenmeSmnotnisuosnfesfeiirtces-lfaidGghIetPnEgIS pfaocakma;giinngd,ustsruicahlaasppmliilcakticoanrst;oncso;atcionsgmsetfiorc
aCdhdei.mtives: andohteh; eprrpeerasmoinatly pfrooudnudctsi.nthe.
s
ppTeeerforlurfcrouocoocntrainoccbsaualusfcdaai(tden((FoPPRFiOOOSeA)N,)aTn.hd eir
resistant 0 breakdown in he environmentx,
Po FOSo and PFbOAibeioakcncouwmnulaabtoeutin PhFuDmAa.ns
Wh"at.s thePRCcomectionto
p"Trhoedu3ncMeedschoienmMiicnanlesstohtaacaotntthaein3MPECs were HCihsetmoorliciatlelyf,ac3ilMitydiisnpCoostetdaogfethGriosve. production vasteon-siteat the Chemolite
facility in CottageGrove as wellasthe 3M Oakdale disposal site, 3M Woodbury site,
aMnPdCthAehaWsaashlisnogbteoennClouontoy kLaatnidoftnihlleg.r sTithees.
that may haveaccepted 3M production
e3AnMgxs.eunrceTyhteh(aEtU.PcSA.u)reEinnstvcioPrndoFunCcmteginentngaesrltaestPtriinoogtntesetincdg totiocosn ope
8 AWdelhctaahdotesu',gshthPteEhrCeesarcheaovfneewcbeesterunndiu?essedofhfeoralth
effects in people. In animal studies, high
nr DeeTlo cayovonreceanbtnordantoiseohnroswoonrfgtPaoFnaOs.Ad,HisPghFlOcSoanfafcneecdtnPtthiFeoBnAs
Oof1P1FOOiAo0ver%3a lolnogngppeerrioidodmmaayyaallsooccause
sat07e80dutids" ishpnionll
sLeionathlni wofshproing if parordents enexpose
aaStpnupddairPeeFsnoOtfAim3dpMuarcitwnogornkmeatrnhsuifreaxhcpetaoulstrehi.dngtSosohPmoFewOSno asrteudciuersreonftlPyFCusndienrtwhaeyg.eneral population
`The National Science Advisory Board's PFOA Review Pancl reviewed the issue
andthae mEaPjoAritthyatoPfFthOeApabneelclrasesciofimemdeansdaed
"Exhibit
3245
Minn5e1s-o2ta90P.ol6l9u0ti0on+Co8n0t0r.o6l5A7g.e38n6c4y ++ T5T20Y L6a5f1a.y2et8t2e.5R3d.52N.0, S8a0i0n-t6P5a7u-l,306M4N +55A1v5a5l-a4b1l9e4in+alwlwewm.aptcvae fstoartmea.tmsn.us.
3245.0001
"likely" carcinogen. However, EPA is reviewing
with PFOS, PFOA and PFBA. These compoundsare
tiunfmoorrmadattiao.n tThhaeqRueevsiteiownsPatnheelealdevviasnccdeEoPfsAotmoesopfontshoer r"TehmeoCvLedPbiys laolokaisnsgofatcthheemdiecsailgsncaanldlecdoasntisoonfibcuirelsdiinnsg
an independent review ofthe tumor data
tarnedatompeenrtatsiynsgtaenm on-site, resin-based ground water
Actions taken
ji
i}
The MPCA has taken the following actions related to
Private well sampling
PFC production waste contamination
"The CLP, in coordination with the Minnesota
EvlaE alnudfaitllisotne haatnadccienpvteseatdigPaFitCionopfrcodluocstieodn dwuasmtpes and
Dogarigint oF Hosts (MDE), Spd 0 piu
rweossiiddeenntitailalwweelllss ifnn Oakdalsoeu.twesiSsotafar, L1aksE4b9irsesniddentisaelven
* Retvaicdenking well sailing.
wells in Lake Elmo and one residential well in Oakdale:
+* EMvuanliucaitpiaolndorfiancktiinvge wlealnldfsialmlplthiantgmayhaveaccepted | bhyavtehePFMCDsH.in eRxecseisdseonftsthwehoweslelwaadtveirsoerxycegeuiddsetlhienewselslet
production waste containing PFOS or PFOA + Sediment sampling in the Mississippi River,
Jadravainnsuoslrayr-gaucitidvealtiendescaa"rrebornec(eGivAiiCn)g fbioltetrlesdSytawsatteemrcuaanntiblea
er
installed or city waters connected to their home
from the 3M Chemolite facility: samplingofeffluent | Fifty-nine residential ells have PFC levels below the
fsraommpltihnegmetro wastewater plant; and fish tissue
wmeolnliatdvoirsoebrdyy tghueideMlPinCesA. aTnhdesMeDHwe.llTshaereexrtoeutnitnoelfy
+ E Review and ovE ersightof 3M monitoring and work
bPaFsOeSd oanndthPeFwOelAlcsoanmtplaimnign.atiWoenllhassabmepelninwgelclondteifniuneesdto
Voluntary Investigation and Cleanup (VIC)
determine the full extentof PFBA in the ground water.
programs
"The city of Lake Elmo has reached an agreement with
+ Recommended EPA investigation of PFOA
+ Developing water quality riteiafo surface water
y3yaMsmttehmatttoaipnrrcolouvdiedsecthietyexwpaatn"esritoon2o1ft4hheommuensicwiiptwithahlpraiprtviaevatrtee
POS FON
ewexlpllsoriinngLaokpetiEolnmso.foarLalkoengE-ltmeormasnodlustaitoen afgoernhcoicmsesare
Saamtpelrifnogr asnhaelxlpoawndmeondiltiosroifngPwFeClsls and surface
oputrsiidentghe area of the currently planned water system
+ Collected fish from the Mississippi and ST. Croix
MDH samplingofresidential wells in Woodbury in
stvgis pid hs Colloon #5: PFC wis yoly
2005 did not deteet PFOA or PFOS, however more
"This lst of actions is further detailed below.
rreesciednetntsiaamlpwleilnlgsin January 2007 detected PFBA in these
Closed landfill sampling and monitoring Municipal well sampling
"sTahmeplMiPnCgAf'orsPCFlOosSeadndLanPdFSiOlAPartotghreaWma(sChLiPn)gtsotnarted
MAfPteCrAPEiCnscownesurletadteitoenctweidthin3sMomaendprtihveatMe DweHllss,atmhpeled
Cpaosutnt3yMLdainsdpsoislalloinfthPeFCsprpirnogduocft2i0o0n4w,aastfetsraetatmhiensgiteo.f m`muunniicciippaallitwiesl.lsBianseOdakodnalseamapnldinogt.hePrFnOeSigahnbdorPinFgOA
"lTahnidsfisllampTlhiinsgseaxmppalnidnegdintoLraekseidEenltmiaoliwserlelfsenrcenacretdheinthe | winecrleudneotCodtettaecgteeGdrionven,eiWgohboodrbiunrgymuannidciHpaasltiitnigess.that
next sectionofthis factsheet. The CLP sampling led to `additional work that included Mississippi River sedyiment
hsenecra"clityoy fbOealokwdatlhee hheaadltlhe.vgeulisdeolfinPeFsOsSetabnyd tPheFOMADH.
csatmpvlainngdtiereascahmaptlci(ng1: fdish sampwalsteinog:maPndRcSlosed and || F41u vern, idn Mahrechis2to006,PtEheCMoDrHhilacbhorahtoeriecsowledrets
g
pling
"The CLP completeda test at the Washington County
Sttaimfefarned-sdaemtpelcetdedthPeFOOa.kdaPlFeOAm,uniPcFiBpAa.l waenldls since that
Lands for treatmentofground water contaminated
perfluorohexanoic acid or PFHA (which is also in the
ePraurofruorcohcehmaimiccaatls -PPeast,pprreesseennt and futurreeactioorns ++FFeebbruary22000077 page2
(EC2D,Mtanoesmoaaorlen
3245.0002
PEC family). To ensure that PFCs consistently remain
`and industrial products introduced into the Minnesota
cwNoenlasltbrieuclltoewdWtaeheGlhA#eCalntfhidgeurMidsaeynlsiitnpeemas,lto3WtMreedlaets4ti.hgenweTadhtoaesnredfwreollms,
|
waste stream.
14hps1$ ser ofslid watemanagemennetd
which had the highest PFC levels, will be able to supply
ctihteyomafjOoaraiktdyaolfewwaitlelroopertahteeOtahkedpallanet,s-y3stMemw.illWhciolveertthhee Jlanodssilles.yTlC heerML PnCdA wisaspsrSooepaonsdinigbaasdidibtiioonnianliwnotr4k at
Spensfig ess.
Minnesota solid waste facilis o evaluate the
wIelnlsdinsCot2t0a0g7e. GMroDvHe,mWopoddburoyr,rHsasatminpgls,dStm. aPanulia | S eeLEos
PPaRrkO. SNveweporrst awndeSdousthi St.thPeasuel.muWhrilie PvFeOlA, aFndEA Sediment and water-related sampling
MPCAstaffcollected sediment cores and iver water
Active landfill evaluation for PFCs
stoamtphleeMsiuspssitsriepapmi RainvdedrofwrnosmtrtheeamCootfttahgee G3rMovdeisfcahcairligtey
In 2006, the MPCA developeda strategy to screen open PFC contaminant levels between 10 and 99 parts per
solid waste facilities in Minnesota for the presence of
billion were found in river core sediments. This may be
vPaFrCiso.usAlsanpdfairltlotfytpheiss tshtraatdeigdy,notthereMcPeiCveAprloodoukcetdiaotn
signoificwant, but the aquatic and ecological effects are not
`waaosntceyfiromsrtohcen3iMngCrheesumlotlsi1t0eaGsrsoevsetfhaociliimtyp.actTshe
":The MDH revised ts Fish Consumption Advisory to
aesssiodceintaitaeld,vciotmhmPeFrcCiaclonatnadmiinnadtuistorniaglenperroadtuecdtsfrinomthe
iMinscsliusdseigpupiideRliivneers(ftohr csaetcitnigonfiosfhtfhreormivPeoroble2twoefetnhethe
froin ty
Ford Dam and Hastings) that may contain PFOS. PFOS
Historically, PFCs were detected in landfil gas
shuansfibsehenanmdeassmuarleldmoiuntthhebadssbalt ltisesuveosfeohfeblallusetghilcloncern
condensate at inc Bend Landsill and Ony Landfill.
for people who cat thse fish too often
Thhsereefaorei, MePCtoAsstayff pcololecnted PlaCndfiplal cgatsssanmphlesasat. | "1TheMMDDHHrerceosmemmemnednsdthshaat poppeopleweshhooactathblueegill
Staffcollected samples from six municipal solid waste
consumptionto one meal per weck. Previously, the
Tianndduiisltlrsi,alt-wdoemcoolimtbiuosntloarndfsilhls.landAflillllsanadnfdilltshriedeentified in cunolnismuitmepdt.ioTnhreecDoNmmRenhadsatsipoecniaflorrbelguuelgaitlilonssunrfeiqsuhirwiansg
the screening effort were constructed with synthetic
that smallmouth bass be immediately released ate they
Hcinoenrdednseastiegnferdomtompirgervaetnitnglaonudtfsilildeltehaechlaatnedfainlld bgoausndary sarheoucladugphrtevfernotmpPeoooplle2.frSoimnccaettihnigssrmeaclolmmmoeuntdhatbiasosn, the
cionltolegcrtioounnodfwaltanedrf.illTlheeacshaamtpelisnagmpplleasn aatlclaocwhedffaocirltithye
cMhDanHneolnclaytfriesvhisfieldletthseanblduewghiiltlesubnafsissahlasdovihcaed. loAwltlheovuelgsh
SttahfrfeaFlascoilictoilelsewcittedh laacntdifviel-lggaassexctornadcetnisoantseysstaemmpsl.esTfhreom
of PECs, following the existing fish consumption advice based on mercury andor polychlorinated biphenyls
results ofthe screening effort indicated low levels of
(PCBS) will also protect people from exposure to PFCs.
sTaEmCplHeIdElSandafiallis,shsohw4e0ov0enSr0e8PFsuCpsiawmesraeihnoStEfiopulnedsifnitchke aInndth2e1wfiinstherforofm20L0a6k,estPae"pfifn.anaNlyozeadddi2t1iofnisahl fardvoimsoProioelos 2
were issued based on this sampling
"TTikheelyrecsuolmtpsoonfetnhtessicnreleenaicnhgateeffaonrdt gsuagsgceosntdtehnastaPtFeCisn are During the summer and fall of 2006, saff collected for
`municipal solid waste landfills, industeial-demolition
testingan additional 94 fish from Mississippi River
landills, and combustor ash landfill in Minncsoa
Pools 3,4, 5 and Sa, the St. Croix River, and Lake
cLoinktelayinlianngdfciollmmseorucrcieasl fporrodtuhcetsse,chreesmiidceantlisalarperoPdFuCct-s,
Calhoun. Results arc expected in early 2007.
PerfluorachemicPalsts, present and future actions + February 2007 paged 3245.0003
e CMoannteasAogaePnocllyution
"The MPCA also collected surface and ground water
`Woodbury sites and did not detect PFOA and PFOS in
tshaemyplceosndfurcotmedsatatperweildiemilnoacraytioenvsa.luWaittihontohfes1e3sdaimfpfleerse,nt arnesyiodfenttihaelswaemlpllsesa.rouInndJatnhuea3ryM2W0o0o7.dbMurDyHSsitaempalnedd 13
pPoFiCntssfoouurncdesoinfMcionnnteasmoitnaatvieotn.not associated with known Bfoausnedd PonFBthAesleevteelsst breestulwtese,nthe2aMnPdC2A.6hpaasrtrsepqeuresbtielldio3n.M
+ Regarding surface water sampling: In November and |,: _ .
.
December 2006,staffcollected water from five
Wm the barrier system's ability to capture all
lakes. The lakes were selected from a database used
iPnFCmse.rcuSrtyaffstfuodiuensd, tahantdalhlad13noPkFnCoswwnesroeurbecleoowf
insdtisaplolsaslenatrienaelanmdonnietaorrbiyngrewseildlesncbeest,scen the
dseutrefcatcaebwlaetleirmistsa.mpTlhese fMrPomCAarowiulnldetvhaelusattateemionr2e007 r Se ICT ren eds3
+ Regarding ground water sampling: Safsampled 17 determine ifthe pumpout pipeline is leaking. and
shallow monitoring wells (nine located in the Twin menor nenrhy residential und senting] wels
CfiotriPesECMsetdruoriAnrgcaNoavnedmcbieghrtainnGdrDeeacteemrMbienrn2e0s0o6ta) 3M submitted an investigation report for the 3M
APgFaCin,conctaacmhinsaatmiponl.e lPorcealtiimoinnahrayd rneosuklntsoiwnndiscoautrectehaotf| OevaaklduaalteiosnistewienrSeecpotnedmubcetred20i0n6.NovAeddmibteiorna2l00s6ieand will
sheavveenoPfFtBhAeTcwonicnentCritaiteisonmsetbreotwaereena s0a.0m4plaendlo0c.a9t2ions cboenutsaemdintaotihoelnpfdreotmertmheinseitt.heThfiulsl weixltlenitnoclfudPeFaCn
pars per billion. All of these PFBA concentrations evaluationofadditional cleanup actions that may be
are below MDH's well advisory guideline. The
necessary. These plans are expected to be submitted to
MPCA will conduct further investigation in 2007 to
the MPCA in April 2007.
etter understord sie obmsred APRA oir
sTihtee iMn PShCaAkospaemeplaendd gtrheouPnidg'wsaEtveer aLtantdhfeilPlCISuSpueprefrufnudnd
Oversight of 3M Superfund & VIC sites
s"iTtheeiMn PStC.APauisleavnadludaettiencgtetdhePdFaOtaA,odPeFtOeSmainndePthFeBA
The MPCA continues its review and oversightof current
appropriate actions. Thess sites were sampled based on
and future work plans or actions related to PFC
information provided by 3M that PFC-containing
contamination from the 3M Superfund and Voluntary
production waste could have been sent (0 these
CIhnveemsotliigtatei(onSuapnedrCflunedansuipt (iVnICCo)ttsaigteesGirnocvleu)d,in3gM3M
locations.
Woodbury (VIC site). and 3M Oakdale (Superfund).
A final comprehensive report from 3M Chemolite was
Samples were also collectaetd the Isanti-Solvent
iStupeesr.funPdFsCitse.we3rMa nuosteddettheicstseidteinfotrhedigsrpoosuanldowfastoelrvent
submited in April 2006. Based on the results submitted.| samples collected. The MPCA continues to assess other
dtheeteMrPmiCneAthreeqeuxitreendt3ofMPtFo Ccocnotnitnaumeiintasteivoanlauattihon stiote
`hpeosrseibPleFdCiscpoonstaalisniitensg, miantcelruidailnsgmfairye thraavienibngelnocuasteido.ns,
(cpornidmuacritleyd iinn tfahlel M2i0s0si6ssainpdpia).reTpohret iisnvpelsatningaetdiofnorwas
esvuablmuiatttiaolntooftahdediMtPioCnAal icnlAeparniulp 2a0c0t7i.onsIttwhialtlmianyclbued.e an pnercoepsossaerdy raestphoens3eMacCthioenmopllaineffoaciolint-ys.ite3dMispdoisdasluabrmeiatsa atthe facility in December 2006. The MPCA is caucrtrieonntslywiellvableuaitmipnlgetmheensteepdlainns,20b0u7t.anticipates these
a3tMthweil3lMcoWnotoindubeurtoymsoinei.toIrnPDFeCcecmobntearmi2n0a0t5,iotnheinMwDelHls sampled residential wells near the 3M Chemolite and
Perfluorochem-icPalsts, present and lure actons. + February 2007 pages
(~] td
3245.0004
EPA investigation of PFOS and PFOA
Shi ete
iofthe
`eneral population and presented conesms for
dpiesrsciusstseinocnes,bbeitowaececnumtuhleatEiPoAnaanndd t3oMxi,cit3y.M hFaolltledowing
productionof PFOS. PFOS findings led to EPA review
ofsimilar chemicals including PFOA, beginning in
2000.
aEdPdAitoisnawlormkoinnigtowriitnhgiinndfusotrrmyatainodn atbhoeurtsPtFoOobAt,ain
tihnactlumdaiyngciotnstianicnintheirsatcihoenmiocrallo.ss Aodverratfimrieskfraosmsepsrsomdeunctts
iBnucdlguedteedprojects which include investigation for PFCs
+ $115,000 foradditional fish tissue sampling in the
Miseistiopd Rivarand other lotion. + t$h2e0,p0r0es0efnocreoadfdiPtFioCnsalinsaammpbliicnngttgorobeutntderwuantdeerr(sftoarnd
example, sampling in areas notassociated with a
disposal site).
+ $200,000 fora consultant contrat 0 accelerate developmentof itera for PFOS and PFOA that `would apply to wastewater effluent discharge to
+ $su1r5f4a,c5e0w0aftoerrsacotfivtehelasntdatfei.ll evaluationofPFCs
apbeoctutrePviFeOw.A wEaPsArewlilelasuedsinthJisannueawryin2f0o0r5maftoirosnciaesntiitfic revises the assessment. MPCAstaffand managers met
+ n$150i,00i0 fonr the evaluation of PFCs at wastewater
`2w0i0t5h.thMe PEPCAA rweigllarcdoinntginPuFeCtoacsthivairteieisnfinorlmaatetiNoonvember EegPaAdiisnaglsPoFcCosndwuictthinEgPaA"microcoa sm" str udyofs the o-yeeaarr studystudy began in March 2006 and is ongoing, Future activities
These projects are expected tobe completed in 2007.
Frovorouumoharveequiesntfioonrsmoartwiouolnddilkike more inif"ormation oabtohuet PMFPCCsAoorrinMfoDrmHatWioenbresiltaets.ed OtothtehirsWfaecbt slhienk,s go Oiankcdlauldee:EPA, the cit of Lake Elmo and th city of
Since PFCs are used in a number of household.
Hcosmpmoesrecdioaflaatnsdoliindduwsatsritael cpirloidtuicetss atnhadt laarnedfuilltlismately
`usstwpippuenbstlateirncationseporwatshcingltopn p-df
`healt sate rn uve rndouchopicspfesheaty ul
tsharmopulgihnoguattMtihnenseosloitdaw,assatfeffaanctiicliipsateevsadlouiantegdaadsdiptairontaolf | vswackecskidnloeonp/ s
wthaete2r0s0a6mpsclrienegniinngdeoffwornt.graTdhiiesntwimlolniintcolruidneggwreoluln.d-
`nem goviptingployindes bam
rLeasnudlftisllgegnaesrawitleld bien trhee-e2v0a0lu6atefefdortto. coTnhfeirsmamtphleiinngiteifalfort
wwihlilcbhedeoxnpoatndheadvetosyantshuebtsiectolifnedrse.molSiatmipolnilnagndaftiltlhsese mfaocniilittoiresinwgilwleblelsftoocuesvealduoatnegtrhoeunpdot-ewnattiaelrfsoarmpPlFiCng in cfoanctilaimsi.natTihoins isnagmrpoluinndgiwateexrpedcotwedn tgoratdaikcentpafcoeminthese 2007
Perfluorochemicals - Past, present and future actions + February 2007
pages
3245.0005
e inulin