FOR DU POMT USE ONLY Copies to AR226-2898 E.

lo BIOSEARCH, INC. p.c. box 8598 philadelphia, pennsylvania 19101 telephone: (215) 848-4499 Submitted to: 33HM CCeonmtpearny sSts.iolpaul, Minnesota Haterial: 3M Conpany - T-1395 Sample Received: December 6, 1975 Date of Report: Test: Object of Test: Method of Test: Results: March 4, 1976 Primary Eye Irritation Study - Rabbits wThoicdhetetrheminseubjtehcetdmeagtreereiaolf miaryritpartoidounc,e wIhfenany, Tihnisstiltelsetd wianstopetrheforemyeeds oifn aorldbeirnotorabcbliatsss.ify StuhibsstamnacteesriaLlabeulnidnegr Atchte.

BACK TO MAIN ACUTE TOXICITY TO FISH (FATHEAD MINNOW) TEST SUBSTANCE Identity: Potassium Decafluoro(pentafluoroethyl)cyclohexanesulfonate may also be referred to as FC-98.

ACUTE TOXICITY TO AQUATIC INVERTEBRATES TEST SUBQ@TANCE (DAPHNIA MAGNA) Identity: A mixture containingperfluorooctanesulfonate,which may also be referredtoas PFOS, FC-95, or as a component ofFC-206 or L3243. (1-Octanesulfoniacid)(CAS # 2795-39-3).

B10 -TEST 1810 FRONTAGE ROAD NORTHBROOK, TLLINOIS 60062 REPORT TO REVERSE IN FIVE ONE 3M COMPANY MUTATION STUDIES WITH T-1485 SALMONELLA STRAINS AND SACCHAROMYCES STRAIN P.O.

e- ` ARNE-0ll6 ACTIVATED SLUDGE RESPIRATION INHIBITION TEST TEST SUBSTANCE Identity: Perfluorooctanesulfonate, DEA salt; may also be referred to as PFOS DEA salt, FC-99, or 3 Sample No. 2. (1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7.7.8,8 8-heptadecafluoro-, compd. with 2,2-iminobis[ethanol] (1:1), CAS # 70225-14-8) R(aepmparrokxism:atTeelsyt 2s5am%plteestissaubmsitxatnucree aofndth7e5te%stwastuebrs)t.anAclevianlwuaetserreported relate to this mixture.

L P h o n e : (814) 231-8032 BACK TO MAIN Fax: (814) 231-1253 or (814) 231-1580 Analytical Report Fluorochemical Characterization of Sediment, POTW Sludge, and Landfill Leachate Samples Decatur, AL (W1979) Centre Analytical Laboratory Report No. 023-014R (Revision 1) Revision Date 3/28/01 Testing Laboratory Centre Analytical Laboratory, Inc. 3048 Research Drive State College, PA 168011 3M Environmental Laboratory Contact Kent R.

AR226-2840 BIOASSAY REPORT SUBMITTED TO E.

BIOACCUMULATION TEST SUBSTANCE Identity:[2-(N-Ethylperfluorooctanesulfonamiedtoh)ylacrylate;may also be referredtoas Bl 228, D-1, ETFOSEA, or FX-13.(2-Propenoicacid,2[ethyl[heptadecafluorooctyl)sulfonyl]aminoe]settehry,ClAS # 423-825) Remarks:Materiiaslan ambersolidR.eportstatetshatsamplepuritiys99% or more based on informatiosnuppliedby Sponsor.

CorporatOeccupationMaeldicine 3M CenterB,uildin2g20-3W-05 St.PaulM,N 55144-1000 6517374230Telephone 6517339066Fax 9.PhysiciaPnlantSummary ReportsRegardingMedicalSurveillanPcreogram atCottageGrove (1978-1991) Followinrgeportosfthefindinogforganifcluorinienserasamplesa,fluorochemical medical surveillancperogram began at3M's manufacturingfacilitiiensthemid 1970's.

June 20. 197H 13LOOD LEVELS OF RFIF IN S]ZLECTED EMPLOYEES: Beginning in 1976 we began to sample selected 3M employees to determine the amount of organic fluorine (R-F')and inorganic fluoride (F) in their blood.

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CorrpoorsrateOOcccaupations Medias 25M1CC7eo3nte4r2,3bB0uidiTngetgho2n0e-305 1733 068 Fax AR226-0473 3M 5a.t PChoytstiacgieanGrPolvanet(S19u7m8m-a19r9y1)Reports Regarding Medical Surveillance Program Following reports of the finding of organic fluorine in sera samples, a fluorocheical medical surveillance program began at 3M manufacturing facilities in the mid 1970s "The surveillance program has generally consisted of annual or biannual tests ofclinical chemistries, pulmonary function, blood counts and abiomoritoroffluorochemical + exposure.

AR 226 -- 0873 ACUTE TOXICITY TO FISH (MUMMICHOG) IEsTsuBsTANCE 000000 Identity: ArefmeirxrteudrteocaosntPaiFnOiSng, pFeCr-f9l5u,oroorocatsanaescuolmfponoanteen,twohficFhC-m7a8y0Ba.lso(1b-e Octanesulfonic acid) (CAS # 2795-39-3).

CorporateHealth Physics Corporate OccupationalMedicine Corporate ProductResponsibility Corporate Toxicology 3M MedicalDepartment 3M Center,220-2E-02 PO Box 33220 St Paul,MN 55133-3220 651733 1110 An Epidemiologic Investigationof ClinicalChemistries,Hematology and Hormones in Relation to Serum Levels of PerfluorooctaneSulfonateinMale Fluorochemical Production Employees Following reportsof the findingof organicfluorineinserasamples,a fluorochemical medical surveillancperogram began at3Ms Decatur manufacturingfacilitiynthe late 1970's.The surveillancperogram has generallyconsistedofannual or biannualtestsof clinicaclhemistriesp,ulmonary function,blood countsand a biomonitorof fluorochemicalexposure.