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.. GTP a S"petay Materials SShcmameoSr vss140-1000 (2 1D FIAL-0902 - 00) 1378 REARC226 - 1123 september 17,2002 VIA FEDE] bi Document Control Office (DCO) Officeof Pollution Prevention and Toxics (OPPT) Wasp 18 faye 02 EPA East, Room 6428 `1W2a0s1hiCnogntsotni,tuDt.iCo.n Avenue, 20460 NW |i i iFYI-00-801i378 Attention: Docket No. AR-226 and the FY1 Docket Re: Information on Perfluorooctane Sulfonates and Related Compounds Dear Sir or Madam: "rTehliastecdonctoimnpuoeusn3dMs',savsoplaurnttoafryousrubomnigsosiinognsdioafldoagtuaeownitpherEfPluAorroeogcatradniengsufllfuoonraotcehsemaincdals. On August 30, 2002, a meeting was held between USEPA personnel and the representatives from the Fluoropolymer Manufacturer's Groupofthe Societyofthe PplearsttaiicnsinIgndtuosatrmymtoondiiuscmuspsersfcileunotriofoicctaasnpoeacttes tohftathweerreesuplrtesvoifotuwsloy tsouxbimciotltoegdytsotAudRi-e2s26. The studies discussed were the six-month oral toxicity study in male cynomolgus `monkeys `meeting, aandedttahielemdualntail-ygseinseroaftiroanw reesptrrooduuscctyicolni/ndgevdaetlaopfmreonmtatlhestlautdtyerinstrautds.y At was the presented by Dr. John L. Butenhoff, 3M. As an action item from the meeting, it was agreed that the raw data and its analysis would be submitted formally to AR-226 with additional analyses that may be helpful in intentofthis submission is to provide the understanding the results raw data and analyses, as ofthe study. The agreed on August 30, 2002. Included in this submission are the following: An exact copy of raw estrous cycling data for P and F1 females from Argus Research Protocol 418-020, "Oral (Gavage) Two-Generation (One Litter per Generation) Reproduction Study of Ammonium Perfluorooctanoate (APFO) in Rats". AObsteabrlveat(itowno Dpaatgae"s)wehnitcihtl,edi,n "aEdsdtirtoiuosn CtoycdlaitangonanedstNraotuusraclycDleilnigv,ecroyn/tLaiittnesrinformation on mean litter numbers of implantation, liveborn, and stillborn by dose group. An analysis ofP and F1 generation estrous cycling data made subsequent to the August 30, 2002 meeting and including colored charts which graphically represent the raw estrous cycling data. MEAN I85020000012 J CONTAIN NO CB! \ --~ s 3 SE LS =I = =o @ g I Document Control Office: September 17, 2002 Page2 We will continue to provide information as it becomes available. Please feel fice to contact me with any questions. Very truly yours, Michael A. Santoro DirectorofEnvironmental, Health Safety and Regulatory Affairs Specialty Materials Markets 3M Building 236-1B-10 St. Paul, Minnesota 55144 651-733-6374 (phone) 651-733-1958 (fax) E-mail: masantoro@mmm.com ce: Dr. Charles Auer Dr. Oscar Hemandez. 000002 2