&tfGt' fa> iooosnyAP* \ 3M SPECIALTY ADHESIVES & CHEMICALS ANALYTICAL LABORATORY ' To: ' From: Leo Gehlhoff- (309727) -3M Chemicals - 236-2A-01 Tom Kestner - (3-5633) SA&C Analytical Lab - 236-2B-11 Request # 's 53030 ARXU-05CM Subject: Fluorochemical Isomer Distribution by 19F-NMR Spectroscopy Date: December 1, 1997 SAMPLE DESCRIPTIONS: * FC-95, lot # 217 (T-6295); Nominal product = CFi7-S03(-) K(+) INTRODUCTION: This sample was subjected to a 19F-NMR spectral analysis method to determine the identities and relative concentrations of the fluorochemical isomers and as many other identifiable impurity components as possible.

IHTEROFFICE MEMORANDUM DFarte:: Dept : Tel Mo: 23-Apr-1997 02 :12pm DAVID E.

AR226-2543 RCRA FACILITY INVESTIGATION PLAN BnPont W ashington W orks W ashington, W est Virginia September 24,1997 DEBS Project No, 7179 Prepared by DuPont Corporate Remediation Group & DuPont Environmental Remediation Services Barley Mill Plaza 27 P.O.Box 80027 Wilmington, Delaware 19880-0027 JSO01918 BD624915 DERS Project No. 7179 September 24,1997 Page!

AR226-3039 Study Title Approximate Lethal Dose (ALD) of H-2I460 in Rats Laboratory Project ID Haskell Laboratory Report No. 176-96 Author Tracy A.

M SLSlG - 0 2 6 0 ACUTE TOXICITY TO AQUATIC INVERTEBRATES (ACARTIA TONSA) TEST SUBSTANCE______________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-603EF. (1Octanesulfonic acid) (CAS # 2795-39-3).

M & a .G - O l Z BIODEGRADATION (BOD/COD) TEST SUBSTANCE________________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-603F. (1Octanesulfonic acid) (CAS # 2795-39-3).

ARA.G _ 0 0 5 ACUTE TOXICITY TO FISH (FATHEAD MINNOW) TEST SUBSTANCE Identity: A mixture containing perfluorooctanesulfonate, may also be referred to as PFOS, FC-95, or as a component of FC-3072. (1Octanesulfonic acid) (CAS # 2795-39-3).

M22fce--toov DETERMINATION OF THE MELTING POM I7M ELTING RANGE OF PFOS WILDLIFE INTERNATIONAL LTD.

A R U G -0075 - '/ I " ) 3 FINAL MULTI-CITY STUDY FIELD REPORT FOR MOBILE ALABAMA AND PENSACOLA FLORIDA - BATTELLE DUXBURY ACTIVITIES for Project Number N100672-01 Submitted to Confidential September 29,1999 Prepared by Christopher Gagnon Battelle 397 Washington Street Duxbury,MA 02332 (781) 934-0571 000422 TABLE OF CONTENTS 1.

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/\R-I26-0%5 Summary PFOS Rabbit Teratology v Study Numbers: 3M T-6295.10, Argus 418-012 Compound & Lot: PFOS (Perfluorooctanesulfonate) - Lot 217, 98.4% pure (SMD Analytical Request c^?

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AR226-2815 SPONSOR APME Avenue E. van Niewenhuyse 4 BOX 3 B-l 160 Brussels Belgium TESTITEM AMMONIUM PERFLUOROOCTANOATE (APFO) STUDY TITLE ALGAL INHIBITION TEST DATA REQUIREMENT Directive 92/69/EEC C.3,31st July 1992 OECD Guideline No. 201, 7th June 1984 US EPA/OPPTS 850.5400 Guidelines, April 1996 STUDYDIRECTOR Jacques LUaridon EXPERIMENTAL COMPLETIONDATE 7 March 2003 DATE OFISSUE J<G <eo(^ TEST FACILITY CIT BP 563 - 27005 Evreux - France LABORATORYSTUDY NUMBER 23685 EAA IFM Recherche S.N.C. au Capital de 846.092 7 0 8 0 6 0 46 2 R.C.S.

AR226-3056 Study Title Approximate Lethal Dose (ALD) o f H-21987 in Rats Laboratory Project ID Haskell Laboratory Report No. 783-96 Author Tracy A.