interimReport#1 Epidemiology2,20-3W-05 MedicalDepartment 3M Company St.Paul,NIN 55144 Date: June8,2000 TitleD:eterminationofSerum Half-Livesof SeveralFluorochemicals Study StartDate: EstimatedDate of FinalReport: IRB Approval Date: ProtocolNumber # 0007 IRB Approval # 98095 Exempt XX Expedited June,2004 14 October 1998 PrincipalInvestigator: Co-investigators: Jean M.

P. 1 o~ nON~ January 30, 2006 AR226-3586 DuPont Corporate Remediation Grou p Barley Mill Plaza - Bldg . 19 4417 Lancaster Pike Wilmington, DE 19805 G6 F E ~ - ` 5 : 0 5 I III I VIA OVERNIGHT MAi t: Ii111111lI 1i1 IlII,1ilHI III,il TSCA Confidential Business Information EPA Docket OPPT-2003-0012 Center (7407M) c/o Ms .

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BACK TO MAIN TOXICITY TO AQUATIC PLANTS (Freshwater Diatom, Navicula pelliculosa) TEST SUBSTANCE Identity: Perfluorooctanesulfonate; may also be referred to as PFOS or FC-95. (1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-, potassium salt, CAS # 2795-39-3) Remarks: Sample obtained from 3M production lot number 217.

BACK TO MAIN 3M Company EPI-0011 Page 1 of 5 INTERIM REPORT Epidemiology Medical Department 3M Company St.

Sponsor: APME Ad-Hoc APFO Toxicology Working Group FINAL REPORT Study Title: 4-Week Capsule Toxicity Study with Ammonium Perfluorooctanoate (APFO) in Cynomolgus Monkeys Author: Peter J.

AR226-2212 Chris E Shoop 11/07/2001 04:47 PM To: cc: Subject: Debbie J Mu!

AR226-2227 ^y Roger J Zipfel ' 12/10/2001 02:15 PM To: cc: Subject: Steven L Grise/AE/DuPont@DuPont Robert F Pinchot/DEV/AE/DuPont@DuPont, Debbie J Mulrooney/AE/DuPont@DuPont, Chris E Shoop/AE/DuPont@DuPont, Oscar T Garza/AE/DuPont@DuPont Updated spread sheet Steve, to the spreadsheet that I had sent to Rob indicating the gas/solids split in the C-8 scrubber exhaust stacks, I have now added the normal operating flow range coming out of these stacks.

AR226-2504 Stfci-il WBMiiiCfl.i'.'

AR226-2811 TRADE SECRET REVIEW OF PROLIFERATTVE LESIONS OF THE EXOCRINE PANCREAS IN TWO CHRONIC FEEDING STUDIES IN RATS WITH AMMONIUM PERPLUOROOCTANOATE Authors Steven R.

TRADE SECRET AR226-3165 DuPont-2926 Study Title H-24002: Biopersistence Screening 10-Dose Oral Gavage Study in Rats Laboratory Project ID: DuPont-2926 AUTHOR: Carol Finlay, B.A.

AR226-3193 TRADE SECRET Study Title H-24944: Biopersistence Screening 10-Dose Oral Gavage Study in Rats Laboratory Project ID: DuPont-6542 AUTHOR: Carol Finlay, B.A.

E.I. duPont deNemours and Company Haskell Laboratory for Health and Environmental Sciences 2 December 2004 iToxicokinetics in the Rat: Pilot results Study Director: W.J.

AR226-1307-6 HHaesalktehlalnLdaboErnavtiorroynmfeonrtal Sciences 1090 Elkton Road Newark, DE 19714.