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' 3S3IMTECCOONMMOPP.AANNYY8 WOODBURY, MINNESOTA INTRODUCTION From 1960 until 1966, spent solvents and acids from 3M's Chemolite and St.

27-CV-10-28862 Filed in Fourth Judicial District Court 2/20/2018 3:34 PM Hennepin County, MN STATE OF MINNESOTA COUNTY OF HENNEPIN DISTRICT COURT FOURTH JUDICIAL DISTRICT State of Minnesota, by its Attorney General, Lori Swanson, its Commissioner of Pollution Control, John Linc Stine, and its Commissioner ofNatural Resources, Tom Landwehr, Plaintiff, vs. 3M Company, Defendant.

`a IInnternaattiioonaall RReessearch aannd DDeevveellopmmeenntt CCoorrppoorraattiioon senso: SPONSOR: TTEESSTT MMAATTEERRIIAALL:: SUBJECT: -- 3M Company 5 TL FFlluuoorraad FFlluuoorrochemicaall FFCC--11443 Acute Oral Toxicity (LD50) Study in Rats.

CorporateHath Pris 3MCenter,Budi 202602 : Corperat Health Pl~.

EEvt~la_o,~y.loeyse~BBulullelettiinn eeffffeeccttiivvee 0055//1166//22000000 PPaaggee 110o1f22 |= ViewNew| ViewPrevious| ViewAnEmployesBuleins| __View Next] A View Previous] ~ View All Employee Bulletins 3DaEMte:m E05m16pp720ll0o0oyyeeee BBuulllleettiinn Date: 3M Phasing Out Some of its Specialty Materials 33MM wwiillll pphhaassee oouutt ooff tthhee ppeerrfflluuoorrooooccttaannyyll cchheemmiissttrryy iinn cceerrttaaiinn rreeppeelllleennttssaanndd ssuurrffaaccttaanntt pprroodduuccttss bbyy tthhee eenndd ooff tthhiiss yyeeaarr..

ADAtatotomnroentyeicyco/lcpilieyenDnttopprnrioivvtiiilleseggteeiddbummatateeterriiaall Do not copy/Do not distribute DDrraafftt TTaallkkiinngg PPooiinnttss CCoottttaaggee GGrroovvee W Welelllss AAGsrsoppvaaerrttCeoonfft33eMrM,'s'swerreerggeuuclleaanrrtwwlayatbteeerrgqqauunaaltlieittsyytimmnogonwnieitltoolrriiwnnaggteaartt 33MM for CCoottttaaggee GflruoovreocCheemnitcear,lsw.e recently began testing well water for Tf"lThuhiiossrollaacttheeesstmt aaicccttaiiloosn.n iiss mmaaddee ppoossssiibbllee bbyy iimmpprroovveemmeennttss iinn aannaallyyttiiccaall mmiineettthhheooddpsasrtwwshhipiccerhh bnnioollwwionee.nnaabbllee uuss ttoo ddeetteecctt llooww lleevveellss ooff fflluuoorroocchheemmiiccaallss VVeinretrhyyellpooawwrtlsleepvveeelrlssbooilffliffollnuu.oorroocchheemmiiccaallss wweerree ffoouunndd iinn wweellll wwaatteerr aatt tthhee * s3siiMttee'..s medical department has analyzed the sampling results and 3M's medical department has analyzed the sampling results and ddeetteerrmmiinneedd tthhaatt tthhee ppoottaabbllee wweellll wwaatteerr does noott presenntt a heeaallth riisskk at tthhee lleevveellss ffoouunndd..

BBaacckkggPrrooFuuOnnSddaIInnndffooPrrmFmaOattAiioonn oonn PFOS and PFOA HHNeoeaalaltdthhverse humanhealth effects have resulted from exposure to PFOS or PFOA.

--_-- Environmental Laboratory 3m | | | | Environmental Fate and | | Effects of Fluorochemicals !

Expert Report of Michael Donlan 27-CV-10-28862 EXHIBIT 1.

IN SEARCH OF NON-INDUSTRIAL SOURCES OF ORGANIC FLUORINE IN SEARCH OF NON-INDUSTRIAL SOURCES OF ORGANIC FLUORINE IINN NNOORRMMAALL HHUUMMAANN BBLLOOOODDFFRROOM MT~ HE GGEENNEERRAALL PPUUBBLLIICC..

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TOXIC TRACES FaBBaennyytHddSrMiSukaikeeasershyEhEaad2dA0gAcs0]esel5lraralyin,,aianMMn,i.i,nnAnAnememsesoerotritiaaccaaPPnnuubbRlRliaiaccddiRRiooaaWWddiooioorr,,kkss Februar~ 2005 `33aMMntiaa-nnsnntaooiuunnnsccpeerddayiinnco22n00t00a00intthehdaattchiittewwmaiacssalppshhaatsosixinnigcg tooouuttlaiibttssappnoiopmpauulllsaa.rr TSShccoeottccchhheggmaairrcddalppsrroohddauucdcattl,,sbboeecctaauuurssneeedtthhueep In'the bloodof 3M workers, though the company anti-stain spray contained chemicals toxic to lab in the blood of 3M workers, though the company said its employees were not harmed. animals.