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Telomer Research Program 1200 South Hayes S treet Arlington, Virginia 22202-5050 Tet (703)413-1100 45264 Fax (703)4158111 AR&3.G - /A71 G A IK I/V K ASAHI GLASS COMPANY Clariant February 14, 2003 Mary F.

AR226-1753 PFOS: A REPRODUCTION STUDY WITH THE NORTHERN BOBWHITE FINAL REPORT WILDLIFE INTERNATIONAL, LTD.

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PFOS: A PILOT REPRODUCTION STUDY WITH THE MALLARD FINAL REPORT WILDLIFE INTERNATIONAL, LTD.

Toxicological Summary PFOS Dietary Acute Northern Bobwhite Study Test Substance: Perfluorooctanesulfonate (PFOS) Structure: 1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-, potassium salt, CAS# 2795-39-3 Remarks: The test substance is a white powder (3M lot #217).

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ALO Jt-l& l Toxicological Summary PFOS Dietary Acute Mallard Study Test Substance: Perfluorooctanesulfonate (PFOS) Structure: 1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-, potassium salt, CAS# 2795-39-3 Remarks: The test substance is a white powder (3M lot #217).

NORTHERN KENTUCKY OFFICE SUITE 340 1717 DIXIE HIGHWAY COVINGTON, KENTUCKY 41011-4704 606-331-2838 513-381-2838 FAX: 513-381-6613 DAYTON, OHIO OFFICE SUITE 900 110 NORTH MAIN STREET DAYTON, OHIO 45402-1786 937-228-2838 FAX: 937-228-2816 R o bert A.

AR226-2194 Stephen J Glssy 08/28/2001 07:33 AW To: Ta-W ei Fu/SE/DuPont@ DuPont cc: Oscar T Garza/AE/DuPont@DuPont, Fred M Lentz/SE/DuPont@DuPont, Robbin Banerjee/AE/DuPont@DuPont, Paul K.

AR226-2253 Debbie J Mulrooney 01/30/2002 06:13 PM To: Robert F Pinchot/DEV/AE/DuPont@DuPont cc: Subject: Re: Watershed Deposition Results Rob, The areas are: Little Hocking - 2.57 km2 Lake Washington - 2.8 km2 Robert F Pinchot 01/30/2002 10:38 AM Robert F Pinchot 01/30/2002 10:38 A M _______________ __________ .-- -- To: Debbie J Mulrooney/AE/DuPont@DuPont cc: Subject: Re: Watershed Deposition Results U Debbie, Thanks a bunch.

AR226-2326 { 'f John W M ilroy_III 04/04/2003 11:09 AM To: cc: S u b je ct Catherine A Barton/AE/DuPont@DuPont Stephen R Hastings/DDE/DuPont@DuPont, Ann K Masse/HO/DuPont@DuPont, Charles J Zarzecki/AE/DuPont@ DuPont Re: Data fo r a ir dispersion modeling Q Stack height is 25 feet.

AR226-2482 fii July 16, 2001 C E R T IF IE D M A IL RET U R N R E C E IP T R E Q U E ST E D M s.

f AR226-2522 AMMONIUM PERFLUOROOCTANOATE 1r' (C-8) r groundwater i investigation steering >" iIII TEAMREPORT L L' AUGUST 2 0 0 3 GW-2001-0191 Consent Order No