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3M GeneralOMces 31MCenter St.PauiM,N 55144-1000 6127331110 April28,2000 Mr.OscarHernandez US EPA/OPPT/CCD (7405) 401 M StreetS,W Room E615B Washington,DC 20460 Dear Oscar: As partoftheongoingvoluntarysubmissionof dataand informationon perfluorooctanseulfonicacid(PFOS) toEPA by 3M, enclosedisinformationon use and exposurerelatintgo,PFOS (Attachment1).Thisinformationispresented followingtheforrnaotfa "Use and ExposureInformatioPnrofile"(UEIP)as recommended to ')M by EPA OPPT management.

Fluoroc Sample Cr=ntrrA=nalyticalLaboratories,Inc. 3048 Research Drive StateCollege,PA 16801 1% Phone: (814)231-8032 Fax:(814)231-1253 or (814)231-1580 Anawcal Report FluorochemicalCharacterizatioonf DrinkingWater Samples Decatur,Alabama (W1979) CentreAnalyticalLaboratoryReport No. 023-007B TestingLaboratory CentreAnalyticaLlaboratoryI,nc. 3048 Research Drive StateCollege,PA 16801 3M Environmental Laboratory Contact Kent R.

3M General Offices 3M Center St.Paul,MN 55144-1000 612733 1110 May 18,2000 VIA EXPRESS MAIL Dr.

N-ETFOSE Alcohol Bibliography Synonyms: FM 3422, FM 3923, FM 4635, FM 4120.

CORNINGHazleton MUTAGENICITY TEST ON T-6357 IN AN IN VIVO MOUSE MICRONUCLEUS ASSAY FINAL REPORT AUTHO Hemalatha Murli,Ph.D.

CoriiingHazletonInc. po.

ACUTE TOXICITY TO AQUATIC INVERTABRATES (DAPHNIA MAGNA) TEST SUBSTANCE Identity:Perfluorooctanesulfonylamido(ethyi)acmeatyaatles;obe referretdo as PFOSAA, FC-128 or as themajor component of FC-127,FC-129, FC-109, or FC-109-X.

ACUTE TOXICITY TO FISH (FATHEAD MINNOW) TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may also be referredto as PFOS, FC-95, or as a component of FC-203C and L-5440. (1-Octanesulfonicacid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafploutoarsos-i,um salt,CAS # 2795-39-3) Remarks: The 3M productionlotnumber was not noted.

ACTIVATED SLUDGE RESPIRATION INHIBITION TEST TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may alsobe referredtoas PFOS, FC-95, or as a component of FC-203CE. (1Octanesuffoniaccid)(CAS # 2795-39-3).

MICROBICS MICROTOXS TOXICITY TEST TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may alsobe referredtoas PFOS, FC-95, oras a component ofFC-206CE. (1Octanesulfoniaccid)(CAS # 2795-39-3).

~ 3N1 Corporate ToxicologN and 3M Center.

29) OECD 104-OPPTS 830.7950, vapor pressure by spinning rotor gauge, 454C-127 c SANITIZED L DEC 09 2003 DETERMINATION OF THE VAPOR PRESSURE OF PERFLUOROBUTANESULFONATE, POTASSIUM SALT (PFBS) USING THE SPINNING ROTOR GAUGE METHOD WILDLIFE INTERNATIONAL, LTD.

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