3M Company St.

3M Specialty Materials f January 3, 2003 3M Center St.

March 31, 2003 To: Mary F.

#. i - / 3/z Tom Cortina <cortina@alcaIde-fay.com> on 04/30/2003 11:02:02 AM Please respond to Tom Cortina <cortina@alcalde-fay.com> To: oppt.ncic@epamail.epa.gov cc: Mary Dominiak/DC/USEPA/US@EPA Subject: Submission to AR 226 April 30, 2003 SUBJECT: Submission to AR 226 Attached is an overview of the mechanics of film formation of aqueous film-forming foam (AFFF) fire fighting agents.

3M ENVIRONMENTAL LABORATORY REPORT NO.

SEVERN TRENT STL STL Chicago 2417 Bond Slreel University Park, IL 50465 Tel: 70S 534 5200 Fax: 708 534 5211 www.stl-inc.com SEVERN TRENT LABORATORIES ANALYTICAL REPORT JOB NUMBER; 232883 Prepared For: Weston Solutions/ Inc: 1400 W e s t o n Way .

Corporate Health Physics Corporate Occupational Medicine Corporate Product Responsibility Corporate Toxicology 3M Medical Department 3M Center, 220-2E-02 PO Box 33220 St.

3(f 3M Specialty Materials 3M Center St.

^ 226- 02/6 Attachments to Letter to C.

BACK TO MAIN ACCUMULATION OF PERFLUOROOCTANESULFONATE AND RELATED FLUOROCHEMICALS IN MARINE MAMMALS John P.

BACK TO MAIN 3M Environmental Laboratory Report No.

BACK TO MAIN 3M Company Page 1 o f 36 FINAL REPORT Epidemiology, 220-3W-05 Medical Department 3M Company St.

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Attachments to Letter to C.

M 3.3.6 - VZ7D ATTACHMENT TO LETTER TO C.