PFOS Ecotoxicological Testing Results Comparison of Effect Concentrations Calculated Using Different Sample Purity All values calculated as mean measured concentrations, except where * (nominal).

MIN 312/014272 PERFLUOROOCTANESULFONYL FLUORIDE (POSF; T-7661.1) PRELIMINARY TOXICITY STUDY BY INHALATION ADMINISTRATION TO CD RATS FOR 1 WEEK Sponsor 3M Center, 3M Corporate Toxicology, Building 220-2E-02, St Paul, MN 55133-3220, USA.

T O - 0500 _ 37?

AfiOX-O 45/ C O R N IN G Hazleton Sponsor. 3M S t Paul, Minnesota FINAL REPORT Study Title: 5 Daily Dose Oral Toxicity Study with T-6669 in Rats Author: Susan M.

^ 216-0 5 /^ ACUTE TOXICITY TO FISH TEST SUBSTANCE Identity: Perfluorooctanoic acid; may also be referred to as PFOA, FC26, or FX-1001.

/WU06-OS33 BIODEGRADATION TEST SUBSTANCE Identity: Perfluorooctylsulfonate, didecyldimethylammonium salt; may also be referred to as Fluoroalkyl ammonium derivative. [1Decaminium, N-decyl-N,N-dimethyl-, salt with 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-loctanesulfonic acid (1:1), CAS # 251099-16-8] Remarks: The 3M production lot number was Lot 1.

INTEROFFICE MEMORANDUM Date: From: Dept: Tel No: 15-Apr-1998 09:29am DAVID E.

Toxicological Summary pros 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).

<OEH>s DuPont Legai RECEIVED' OPP CB'C m m 12 AH 6-. 09 Andrea V Malinowski Corporate Counsel DuPont Legal D-7078 Wilmington, Delaware 19898 Phone: 302-774-6443 Fax: 302-774-4812 AR226-1882 8 January 2004 Document Control Office (DCO) Office of Pollution Prevention and Toxics (OPPT) US Environmental Protection Agency EPA East, Room 6428 1201 Constitution Avenue, NW Washington, DC 20460 VIA OVERNIGHT MAIL Attention: Docket No.

Document Control Office Office of Pollution Prevention and Toxics Page 3 8 January 2004 AR226-1883 ATTACHMENT Analytical Report West Virginia Department o f Environmental Protection Analysis o f Perfluorooctanoic Acid in Fish Samples Exygen Report No.

Summary E04-0909 AMnuanliycsiipsaoliftyPFOA and PFOS in Water Samples from Hastings E04-0910 AGnroavlyesMis uonfiPciFpOalAityand PFOS in Water Samples from Cottage E04-0911 AMnuanliycsiipsaoliftyPFOA and PFOS in Water Samples from Oakdale E05-0007 AOnakaldyaslies, oMfNPFOA and PFOS in Aqueous Samples 3M Dyneon, E05-0074 MAnuanliycsiipsaoliftyPFOA and PFOS in Water Samples from Oakdale Feb. 1, 05 ManidnnPeFsOoStaODaekpdaartlme PenrotjoefctHealth Data Validation for PFOA 3

AR226-2019 C-8 REVIEW FEBRUARY 8,1993 J ...

AR226-2133 Test Results Sample Date Rang concentration Range Action Level Industrial H ygiene 1/ 1/2002 11/ 2 2 /2 0 0 2 100% Sample D t Sample# Duration Type Employee Name Peis Chemical BTO : 08 LOC : 045 TEFLON B-162 ROOF 2nd Level - General & HSV Unite 3/5/2002 10445 0/11/2002 10514 9/11/2002 10631 360 A 360 A 360 A C-8/FC-143 C-8/FO-143 C-8/FC-143 BTO: 08 LOC: 048 TEFLON B-162 OUTSIDE SMOKING AREA - 2ND LEVEL 3/5/2002 10446 5/11/2002 10515 9/13/2002 1063?

AR226-2212 C hris JE S hoop 11/07/2001 04:47 PM To: Debbie J Mulrooney/AE/DuPont@DuPont, Karl G Kronberg/AE/DuPont@DuPont cc: Subject: Data Sheet for Permitted Emissions CONFIDENTIAL COMMUNICATION Debbie, Here is the sheet I promised but I will need to have Kari complete the cells for FEP, and check the cells for PFA.

AR226-2220 O .. jiy L Ron J Buchanan 11/29/2001 10:45 AM < To: Robert F Ptnchot/DEV/AE/DuPont@ DuPont cc: Debbie J Mulrooney/AE/DuPont@ DuPont, Steven L Grise/AE/DuPont@ DuPont, Mary A Kaiser/AE/DuPont DuPont, Roger J Zipfel/AE/DuPont DuPont, Ta-W ei Fu/SE/DuPont@ DuPont, Bernard J Reilly/AE/DuPont DuPont, David M Rurak/AE/DuPont@ DuPont, Chri3 E Shoop/AE/DuPont@ DuPont, Robert L Ritchey/CL/DuPont@ DuPont, Charles J Zarzedd/AE/DuPont DuPont, Stephen T Breske/AE/DuPont@ DuPont Subject: Re: M ulit M edia Consent Order APFO data requirements ft) Rob...