Xff tifiAa- 63z May 2000 Organization for Economic Cooperation and Development Existing Chemicals Task Force Meeting PFOS Assessment Approach in OECD The recently circulated information on PFOS and its associated derivatives raises a number of important questions regarding this chemical technology and the appropriate steps to take in light o f the decision by the major manufacturer to phase out production for most uses during the current year.

M 3.3.6 - VZ7D ATTACHMENT TO LETTER TO C.

AR&sl6 _ o eas CAS Number 1763-23-1,29081-56-9, 70225-14-8,2795-39-3,29457-72-5 / 3M Company / Revised: 7/2000 Voluntary Use and Exposure Information Profile Perfluorooctane Sulfonic Acid and Various Salt Forms I.

3M Specialty Materials 3M Center St.

^ o a i'V v v AOO 2 0 I1DZ UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION III 1650 Arch Street Philadelphia, Pennsylvania 1 91 0 3-2(0 Robert A.

3 The Plastics Industry Trade' Association AA<_f i - f i . 15OH- Donald K.

AR226-1486 ENVIRONMENTAL AND HEALTH ASSESSMENT OF PERFLUOROOCTANE SULFONIC ACID AND ITS SALTS August 20, 2003 Prepared by 3M in consultation with Jack Moore, D.V.M., DABT, Hollyhouse, Inc.

Page 1 FINAL REPORT Epidemiology, 220-3W-05 Medical Department 3M Company St.

AR226-2173 _?

AR226-2175 Chris E S h o op 08/08/2001 05:23 PM _____________________________ To: Debbie J Mulrooney/AE/DuPont@DuPont cc: Robert L Ritchey/CL/DuPont@DuPont, M.

AR226-2282 t iTM -, Debbie J Mulrooney 05/03/2002 03:23 PM To: D JRO BERTS@ m ail.dep,state.w v.us cc: Bernard J Reiliy/AE/DuPont@DuPonL Robert F Pinchot/DEV/AE/DuPont@DoPont Subject Little Hocking Receptor Grid Dave, In our meeting in Charleston last w eek you asked if 1could provide to you the receptor grid that I used for modeling deposition in the Little Hocking watershed (as shown in Figure 3 in our draft report).

AR226-2301 fiy-J* Charles J Zarzecki 02/21/2003 01:43 PM To: Catherine A Barton/AE/DuPont ce: Subject: Snapshot Results Cathie, The snapshot resuts: 0.477 ug/m3 at the same property line receptor as before.

AR226-2556 June 23, 2000 Dr.

AR226-2803 DuPont-5207 TRADE SECRET Study Title H-24648 and H-24020: Biopersistence Screening 20-Dose Oral Gavage Study in Rats with Recovery Period Laboratory Project ID: DuPont-5207 A u t h o r : Susan A.

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