L P h o n e : (814) 231-8032 BACK TO MAIN Fax: (814) 231-1253 or (814) 231-1580 Analytical Report FIuorochemical Characterizationof DrinIking Water Samples Columbus, GA (W2336) Centre Analytical Laboratory Report No. 023-007F (Revision 2) (Revision Date 3/21/01) Testing Laboratory Centre Analytical Laboratory, Inc. 3048 Research Drive State College, PA 1680'1 3M Environmental Laboratory Contact Kent R.

BACK TO MAIN BIOCONCENTRATION (n-OCTANOL/WATER PARTITION COEFFICIENT) TEST SUBSTANCE Identity: N-methylperfluorooctane sulfonamidoethanol; may also be referred to as N-MeFOSE Alcohol, FC-790, FM-3925 or T-5874. (1-Octanesulfonamide, N-methyl1,1,2,2,3,3,4,4 ,5,5,6,6,7,7,8,8,8-heptadecafluoro-N-(2hydroxyethyl)-, CAS # 24448-09-7) Remarks: Material is a cream-colored solid of uncharacterized purity Batch 2334.

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.

Protein Binding of PerfJuorohexaneSulfonate, PerfluorooctaneSulfonate and Perfluorooctanoateto Plasma (Human,Rat, and Monkey), and Various Human-Derived Plasma Protein Fractions STUDY ID: 9921.7 Southern Research Institute 2000 Ninth Avenue South P.O.

Study NO.T-7098.1; DT35 Title: &zu 4 69 5 Pharmacokinetic Study of Perfluorooctanesulfonyl Fluoride {POSF) FollowinE a Single Oral Gavage Dose In Rats 3M Strategic Toxicology Laboratory Corporate Toxicology 3M Medical Department 3M Center, Building 270-SB-3 14 St.

STUD TITLE ExtractionofPota`AsnsailyusmisPeUrsfilnugorHoPoLcCt-aEnelseucltfroonsaptreafyr/oMmas`sQuSaiplecSterroummetarnyd Quail Liver for DRAETQAUIREMENTS Analytical Method Requirements STUDY DIRECTOR Sean Gallagher STUDYCOMPLETEDON September 06, 2001 PERFORMINGLABORATORY / TESTINGFACILITY.

AR226-2253 / Debbie J Mulrooney 01/30/2002 06:13 PM To: cc: Subject: Robert F Pinchot/DEV/AE/DuPont@DuPont Re: Watershed Deposition Results D 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 AM To: cc: Subject: Debbie J Muli-ooney/AE/DuPont@DuPont Re: Watershed Deposition Results Q Debbie, Thanks a bunch.

AR226-2264 |&I ?

AR226-2340 Item 10: Monitoring - Fluoropolymers EPA Data Needs: (Draft 9-21-03) Data Need LOI Commitment Manufacturing Releases Data on releases to air, water, wastewater, landfill leachate Information on release of PFOA to air, water, wastewater, landfill leachate from manufacturing facilities Continued monitoring of releases Manufacturing Sites Concentration of PFOA in air, surface water, groundwater, soil, biota, wastewater, landfill leachate at manufacturing facilities Surface water, groundwater, wastewater, landfill leachate concentrations at manufacturing sites Limited biota data Modeling of PFOA in air Additional data needs beyond LOI .EPA Proposal to Address Data Needs Manufacturing none Monitored concentrations of PFOA in air, soil, additional biota Screening level monitoring of PFOA in air to quantif concentration and extent Screening level monitoring of PFOA in biota (eg. fish aquatic species, plants, herbivores, avian, terrestrial s manufacturing facilities Item. 10: Monitoring - Fluoropolymers EPA Data Needs: (Draft 9-21-03) Data Need Off Site from Manufacturing Concentration of PFOA in air, surface water, groundwater, soil, and biota down gradient from manufacturhg facilities LOI Commitment PFOA concentrations in surface water and groundwater from manufacturing sites Additional data needs beyond LOI Monitored concentrations of PFOA in air, soil, additional biota Limited biota data Modeling of air contamination EPA Proposal to Address Data Needs Monitoring of PFOA in air to quantify concentration and ex of off site contamination Additional groundwater monitoring, similar to Washington Works, to quantify PFOA in groundwater of&ite contamina at additional manufacturing sites, Groundwater samples s be collected to determine the extent and level of contamina away fro.rn.ttie ske Soil sampling for PFOA to quantify and determine axtent o site soil contamination Monitoring additional biota for PPOA (plants, herbivores, avian terrestrial species, fish and other aquatic species)nea manufacturing facilities Item 10: Monitoring - Fluoropolymers EPA Data Needs: (Draft 9-21-03) Data Need Use Releases Information on release ofPFOA to air, water, wastewater, sludge from use facilities LOI Commitment Composite information on process releases from user facilities representing different use industries Modeling of releases from user facilities (carpet initially) Additional data needs beyond LOI EPA Proposal to Address Data Needs Use Monitoring data on release of PFOA to air, water, wastewater, sludges from processing/use facilities Screening level monitoring studies to measure PPOA r to air, water, wastewater, and sludgesat representative sites.

AR226-2408 INTEROFFICE MEMORANDUM Date: From; Depts Tel No: TO; William E.

AR226-2565 EGA Technical Subgroup Monitoring Landfill Monitoring and Exposure Summ Goal for Today Understand the contribiition of landfills PFOA levels in the environment Environmental Assessment F Manufacturing Facilities/Land 1.

Copies to: AR226-2752 E.

AR226-2770 FOR DD POUT USE ONLY Haskell E* I. du Font de NeB-ure and Co,, Inc. laboratory for Toxicology and Industrial Elkton Road, P. 0.

AR226-2825 ^L0-e>^f-&s International Research and Development Corporation____ SPONSOR: E.

ARL26 - 1012 PTihvesics ade" Ue - April 24,2001 "CThreamciysGt.