Document dn00YymvDjERyQDg4ZrBBpgLR

3M Specialty Materials 3M Center St. Paul, MN 55144-1000 651 733 1110 pf'CElVEO r , v : t e.r-SC Document Control Office Docket AR-226 EPA East Building, Room 6428 1201 Constitution Ave., N.W. Washington, DC 20460 Phone: 202-564-8930 Attention: OPPT Docket No. AR-226 (Mary Dominiak - Room 4410) Re: Information on Perfluorooctanoic Acid (PFOA) Dear Sir or Madam: This continues 3M's voluntary submissions of data on perfluorooctane sulfonate (PFOS), perfluorooctanoic acid (PFOA), and related compounds, as part of our ongoing dialogue with EPA regarding perfluorochemicals. Today's submission consists of five pathology reviews done in connection with the APFO bioassays or monkey study. Several of these documents have previously been provided to EPA, but we are unable to locate them in the docket and we are therefore supplying additional copies. We are enclosing paper copies of these documents, which are itemized on the enclosed index. These documents do not contain confidential business information. Our recent paper submissions will be collected on a CD in the future. Please feel free to contact me with any questions. Very truly yours, enclosures cc: Dr. Charles Auer Dr. Jennifer Seed Dr. Oscar Hernandez (without enclosures) Director of Environmental, Health, Safety and Regulatory Affairs 3M Building 236-1B-10 St. Paul, MN 55144 651-733-6374 (phone) 651-733-1958 (fax) E-mail: masantoro@mmm.com CONTAIN MO CBf / om