Estrous Cycling and Natural Delivery/Litter Observation Data FI Estrous Cycling Data, From Data Analysis Presented at EPA on August 30,2002" APFO Dose Group (mg/kg/day) 0 1 3 10 30 All 4-Day 14/30 19/29 9/30 15/29 15/30 Cycles 3-5 Day Cycles 24/30 26/29 21/30 25/29 27/30 Cycle Length (Days) 2 3 4 5 6 7 8 Mean Cycle Length (Days) S.D. 1 2 75 18 5 1 2 4.3 0.8 Incidence of Cycle Length Per Group 0 1 80 16 2 1 0 4.2 0.5 5 7 57 32 5 0 1 4.3 0.9 2 5 84 14 3 0 0 4.1 0.6 5 5 86 17 0 0 2 4.1 0.8 Aberrant Cycles Parental > 4 Days Diest. 2 1 14 1 > 3 Days Est. 17 13 15 16 13 FI > 4 Days Diest. 5 3 3 5 3 > 3 Days Est. 25 25 29 11 14 P E M D End in Estrous Distribution of Cycle Status at Start of 21-Day Evaluation Period, FI 14 12 8 10 11 14 6220 15 13 16 13 Distribution Rats in Estrous at End of 21-Day Evaluation Period, FI 13 17 18 19 5 11 2 12 19 Mean Implantations, Liveborn, and Stillborn S.D. per Litter by Group c Parental Litters Implantations 15.3 1.9 15.6 2.1 15.2 2.3 15.6 2.0 15.3 2.0 Liveborn 14.2 2.2 14.2 2.6 13.4 3.6 13.8 3.0 13.4 3.3 Stillborn 0.1 0.3 0.4 1.4 0.2 0.4 0.1 0.4 0.2 0.6 F I Litters Implantations 14.8 3.0 15.8 2.1 14.7 2.8 15.0 2.9 14.5 2.9 Liveborn 13.6 2.9 13.7 2.4 13.8 3.0 13.5 3.1 13.3 2.8 Stillborn 0.2 0.5 0.2 0.5 0.2 0.6 0.2 0.5 0.1 0.2 "Original analysis counted cycles from the day following estrous (or proestrous if diestrus followed proestrous without observation of estrous) to the day following the end of the next estrous.

AR0U'OM3 C O R N IN G Hazleton MUTAGENICITY TEST WITH // ^ '< A \ T-6342 i \* IN THE SALMONELLA - ESCHERICHIA COI//MAMMALIAN-MICRSOME REVERSE MUTATION ASSAY ir-- - ^ FINAL REPORT AUTHOR Timothy E.

/ H U U -05 TOXICITY TO AQUATIC PLANTS TEST SUBSTANCE________________________________________________ Identity: Perfluorooctanoic acid, ammonium salt; may also be referred to as PFOA ammonium salt, Ammonium perfluorooctanoate, PFO, FC116, FC-126, FC-169, FC-143 or as the major component of FC1015.

3M Dr.

f l& 2 6 -1 6 f t FFOS: A PILOT REPRODUCTION STUDY WITH THE NORTHERN BOBWHITE FINAL REPORT WILDLIFE INTERNATIONAL, LTD.

TherImmune R esearch C orporation smosso. 3M Corporate Toxicology Building 220-2E-02, 3M Center St.

EXHIBIT 1 Table A.

NORTHERN KENTUCKY OFFICE SUITE 340 1717 DIXIE HIGHWAY COVINGTON, KENTUCKY 41011-4704 SOS-331-2S3S 513-3S1-2S3S FAX: 513-381-6613 DAYTON, OHIO OFFICE SUITE 900 110 NORTH MAIN STREET DAYTON, OHIO 45402-1786 937-22B-2S3S FAX: 937-228-2616 Robert A, Bilott (513) 357-9638 bilott@taftlaw.com TAFT, STETTINIUS & HOLLISTER LLP 425 WALNUT STREET, SUITE 1800 CINCINNATI, OHIO 45202-3957 513-381 -2838 FAX: 513-381-0205 www. taftlaw. com CLEVELAND, OHIO OFFICE 3500 BP TOWER 200 PUBLIC SQUARE CLEVELAND, OHIO 44114-2302 216-241-2838 FAX: 216-241-3707 COLUMBUS, OHIO OFFICE 21 EAST STATE STREET COLUMBUS, OHIO 43215-4221 614-221-2638 FAX:614-221-2007 /9S May 12,2005 FEDERAL EXPRESS Dr.

AR226-2101 Test Results .

TestResijilts AR226-2123 File:///C|/WINDuws/1emp/U-B-LL

i AR226-2150 Roger J .

AR226-2203 Robert F Pinchot 10/18/2001 02:30 PM To: ck Subject jh ans haw @ m ail.d ep.state.w v .us ' Debbie J Mulrooney/AE/DuPont@DuPont, Steven L Grise/AE/DuPont@DuPont, Bernard J Reilly/AE/DuPont@DuPont, M.

AR226-2292 Chris EShoop 10/17/2002 10:07 AM To: Robert L RitcheyVCL/DuPont@DuPont ck OscarT Garza/AE/DuPont@DuPont, Ta-Wei Fu/SE/DuPont@DuPont, Fred M Lentz/SE/DuPont@DuPont, Karl GKronberg/AE/DuPont@DuPont, Debbie J Mulrooney/AE/DuPont@DuPont, Robert I Wevodau/SE/DuPont@DuPorrt Subject Explanation of input Data for Modeling Studies Bob, Per your request and in preparation for discussions with the Ohio EPA, please see the foltowing descripflon of the development o f the emission numbers used in the modeling studies for 2002 and 2003.

AR226-2356 S tev e W illiam s" <steve.w illiam s@ epa.state.oh.us> on 01/27/2004 10:17:55 AM To: Andrew S Hartten/AE/DuPont@ DuPont cc: 'Michael Preston* <mlchael.preston@ epa.state.oh.us> Subject: Re: Draft Surface Soil Procedure Andrew, I looked over the draft soil/biota sampling procedure and have a few questions/comments.

AR226-2430 INTEROFFIE MEMORANDUM Date: From; Dept; Tel No: 22-Jul-1993 07:59am DANIEL A WEBER WEBERDA POLYMER PRODUCTS 8-863-4415 TO: WALTER M.