STUDY TITLE Extraction of Potassium Perfluorooctanesulfonate from Mallard Serum and Mallard Liver for Analysis Using HPLC-Electrospray/Mass Spectrometry DATA REQUIREMENTS Analytical Method Requirements STUDY DIRECTOR Sean Gallagher STUDY COMPLETED ON September 06, 2001 PERFORMING LABORATORY / TESTING FACILITY Centre Analytical Laboratories, Inc.

AR M6-0135 C O R N IN G Hazleton MUTAGENICITY TEST ON T-6342 IN AN /TVF7FD MOUSE MICRONUCLEUS ASSAY / FINAL REPORT AUTHOR Hemalatha Murli, Ph.D.

AR AA6 _ 0 58f TSCA NCIC Notification Form for CBI Documents ftDocket Number: R 3^1 io Document Control Number: 2 Q Q O Q a a > O O o l Document Date: ^ " Si' Document Type: _____ >C> CCc=a3 rc "--Otmo S iim - c> ro CD The d o c um en t referenced a bo ve is claimed a s confidential business information (CBI) u n d e r S e c t io n 14 o f the To x ic S u b s ta n c e s C o n tro l A c t (TSCA).

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A X > 6 'I 8 S ^ Toxicological Summary PFOS Dietary Chronic Definitive Reproductive Study: Northern Bobwhite 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.

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AR226-2103 Test Results Sample Data Range Concentration Range A ction Level Industrial Hygiene 1/1/94 12/31/94 100% Sample Dt Sam ple# D uration Type Employee Mama BTO: 08 LO C: 113 TEFLON P /S - SHIFT MECHANIC (58MD) 2/2/94 19405 360 P 5/17/94 19813 390 P 8/26/94 20160 360 P 12/13/94 20672 380 P Pere Chemical 5BMD C-8/FC-143 5BMD C-8/FC-143 58MD C-SZFC-143 58MD C-8/FC-143 BTO: 08 TEFLON LOG: 703 FINE POWDER PACKOUT ROOM 1/27/94 19338 370 P 08PJ C-8/FC-143 BTO: 08 LOC : 708 TEFLON P /S - FINE POWDER PACKOUT (06PJ) 1/27/94 2546 375 A 8/25/94 20153 390 P C-8/FC-143 08PJ C-8/FC-143 BTO: 08 LOC: 717 TEFLON ROOF AREA-GENERAL 1/28/94 8 8 380 A C-8/FC-143 BTO: 08 LO C: 731 TEFLON A /S -INSIDE F.P.

AR226-2188 ,3 Debbie J Mulrooney ' 08/23/2001 09:53 A M To: cc: Subject Chris E Shoop/AE/DuPont@DuPont Question on Source Spreadsheet Chris, I noticed that on the revised spreadsheet you added a column showing the fraction of P M that is C8.

AR226-2189 Chris E Shoop 08/24/2001 03:59 PM To: Debbie J Mulrooney/AEA)uPont@ DuPont cc: Roger J Zipfe!

AR226-2234 Steven L Grise 12/12/2001 03:26:26 PM To: Debbie J Mulrooney/AE/DuPont@DuPont cc: Bernard J Reilly/AE/DuPont@DuPont, Robert F Pinchot/DEV/AE/DuPont@DuPont Subject: Re: C.O.

AR226-2384 PERSONAL & CONFIDENTIAL 6/13/84 TO: H.

RECYCLED AR226-2659 &> CO V RES E A R C H .Precise Research.