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Taft/ Taft Stettinius & Hollister LLP 425 Walnut Street, Suite 1800 ICincinnati, Ohio 45202-3957 ITel: 513.381.2838 IFax: 513.381.0205 Iwww.taftlawcom Cincinnati /Columbu5 ICleveland /Dayton /Covington IPhoenix ROBERT A.

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s9qf = Suae 3 yey ARQ&_6 1133 UNITED STATES EANVSINROGNMTEONTNA5L..PRSOToECTION AGENCY eva eanrnSn ceeesio 21 October 2002 MEMORANDUM: ) SUBJECT: Focussed statistical analysesof APFO datma en wd oveinglos FROM: Efabeh i Margesches PhD, Stasis 5 , { oe S o RExiissktiAnsgseCshsemmeinctalDsivAisssieosns(m4en0t3BMr)anch OY ; S2338 0: Katherine Asitole, Ph.D.

Determination of Ultraviolet Spectrum: 8-2 Telomer B Alcohol DUPONT REPORT # 12734 8-2 TELOMER B ALCOHOL, C4F1;CH,CH,0H: ULTRAVIOLET SPECTRUM Test Guideline(s) Authors MarAy Kaiser, PD.

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COVAANNCCEE AR R86 -- 1358 Sponsor: 3M FINAL REPORT Study Title: 4-Week Capsule Toxicity Study with Perfluorooctane Sulfonic Acid Potassium Salt (PFOS; T-6295) in Cynomolgus Monkeys Author: PeteJr.

ATTACHMENT 2 AR226-1540 SEPTEMBER 2002 THROUGH AUGUST 2003 AIR DISPERSION MODELING ANALYSIS OF APFO EMISSIONS DuPont Washington Works Facility Parkersburg, West Virginia RECEIVED OPPT NCIC 2003 October 31 8:25AM Prepared for: West Virginia Department of Environmental Protection Division of Air Quality 7012 MacCorkle Ave, SE Charleston, WV 25304-2943 Prepared by: DuPont Engineering Technology (DuET) Environmental Section Wilmington, DE 19898 October 17, 2003 1.