Northwest Bioanalytical A6_ IAH Study No.

Proven Results

Wildlife International, Ltd. -1 - Project Number 454A -106 PFOS: A 96-HOUR SHELL DEPOSITION TEST W ITH THE EASTERN OYSTER (Crassostrea virginica) ADDENDUM WILDLIFE INTERNATIONAL, LTD.

Group Summary P Generation Group Group 1 Group II Group III Group IV Group V NUMBER OF DAYS OF DATA COLLECTION NUMBER OF DAYS IN ESTRUS % OF DAYS IN ESTRUS 21 g 43% 21 8 41% 21 9 42% 21 8 39% 21 9 42% NUMBER OF DAYS IN % OF DAYS DIESTRUS IN DIESTRUS NUMBER OF % OF DAYS DAYS IN IN PROESTRUS PROESTRUS 9 41% 9 45% 9 45% 10 45% 9 43% 3 16% 3 14% 3 13% 3 15% 3 15% "N" FOR MEAN CYCLE MEAN CYCLE NUMBER OF LENGTH LENGTH CYCLES 30 4.3 4.6 30 4.0 4.6 28 4.1 4.3 30 4.3 4.4 29 4.1 4.6 P Generation nimal I 13801 13802 13803 13804 13805 13806 13807 13808 13809 13810 13811 13812 13813 13814 13815 13816 13817 13818 13819 13820 13821 13822 13823 13824 13825 13826 13827 13828 13829 13830 13831 13832 13833 13834 13835 13836 13837 13838 13839 13840 13841 13842 13843 13844 13845 13846 13847 13848 13849 13850 Group 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 MEAN CYCLE LENGTH 3.75 3.20 3.75 3.67 3.75 5.33 4.00 4.25 4.25 4.25 4.50 9.00 4.00 5.00 5.00 4.33 4.00 4.00 4.00 4.00 4.25 4.00 4.00 3.40 4.67 3.75 4.25 3.75 4.00 4.00 3.67 4.25 4.00 3.75 4.00 4.00 4.00 4.50 3.75 4.33 3.75 4.00 4.25 3.75 4.00 4.00 4.00 4.00 4.00 4.25 NUMBER OF CYCLES 5.00 6.00 5.00 4.00 5.00 3.00 5.00 4.00 5.00 5.00 4.00 2.00 5.00 4.00 4.00 5.00 5.00 5.00 5.00 4.00 5.00 5.00 5.00 6.00 5.00 5.00 5.00 4.00 4.00 5.00 5.00 5.00 5.00 5.00 5.00 2.00 5.00 2.00 5.00 5.00 4.00 4.00 5.00 4.00 4.00 5.00 4.00 5.00 5.00 6.00 13851 13852 13853 13854 13855 13856 13857 13858 13859 13860 13861 13862 13863 13864 13865 13866 13867 13868 13869 13870 13871 13872 13873 13874 13875 13876 13877 13878 13879 13880 13881 13882 13883 13884 13885 13886 13887 13888 13889 13890 13891 13892 13893 13894 13895 13896 13897 13898 13899 13900 13901 13902 CO CO CO P Generation 2 3.25 6.00 2 3.75 5.00 2 4.00 4.00 2 4.00 5.00 2 3.75 5.00 2 3.75 4.00 2 4.50 4.00 2 4.00 5.00 2 3.80 5.00 2 4.25 5.00 3 5.00 3.00 3 3.75 5.00 3 4.00 5.00 3 4.67 4.00 3 4.00 4.00 3 4.67 3.00 3 4.00 5.00 3 3.75 5.00 3 4.00 5.00 3 4.00 4.00 3 3.75 5.00 3 3.75 5.00 3 4.00 5.00 3 5.00 3.00 3 4.00 4.00 3 3.75 4.00 3 4.25 4.00 3 4.25 5.00 3 4.00 6.00 3 4.00 4.00 3 5.00 4.00 3 4.00 5.00 3 3.75 5.00 4.00 5.00 #DIV/0!

EXHIBIT 1 Table A.

i AR226-2150 Roger J .

AR226-2570 [Andrew S Hartten To: Mary A Kaiser/AE/DuPont@DuPont cc: John R Bowman/AE/DuPont@DuPont Subject: Sampling Program Mary, l6/0T/20di'Q5T02 PM t I'm a little concerned about the decision to contract Battellle to provide sampling services related to the Consent Order.

METHODS AND MATERIALS This inv estig atio n was perfformed a t the aquatic toxicology l s a u b s o c reapt.toirbyi l -if ity Bi o o f nomi rain cs, bow |int rco.u, t Wareham, (Salmo`g M ai as rd sach neri us ) e t tt o s.

AR226-2981 DU PONT HLR 879-92 HASKELL LABORATORY FOR TOXICOLOGY AND INDUSTRIAL MEDICINE STATIC.

AR226-3123 DuPont-3101 HASKELALNLDAIBNODRUASTTORRIAYLFMOERDTIOCIXNIECOLOGY H-24108: STATIC, TAOCUDTaEph4n8ia-HmOaUgnRaSCREENING TEST PURPOSE: Ttheisst cisonacreanntgreaftiionndsinagnsdtuddaytadmeseiagsnuerdemtoepnrtsovaitdpereadneetesrtimmianteedoifnateqruvaatlisc. toxicity using fixed GENERAL INFORMATION WORK tHRiAEi sQSTMKUEELS.TL1.

P-1 "McCrea, Deborah" <mccrea@taftlaw.com> 0 3 /0 6 /2 0 0 9 02:34 PM To N C IC O P P T @ E P A cc "Bilott, R obert A." < bilott@ taftlaw .com > bcc S ubject Subm ission to E P A -H Q -O P P T -20 03-0 01 2 Taft / Deborah McCrea / Legal Assistant Taft Stettinius & Hollister LLP 425 Walnut Street, Suite 1800 Cincinnati, Ohio 45202-3957 Tel: 513.381.2838 Fax: 513.381.0205 www.taftlaw.com / mccrea@taftlaw.com A d -^ -Q - Internal Revenue Service Circular 230 Disclosure: As provided for in Treasury regulations, advice (if any) relating to federal taxes that is contained in this communication (including attachments) is not intended or written to be used, and cannot be used, for the purpose of (1) avoiding penalties under the Internal Revenue Code or (2) promoting, marketing or recommending to another party any transaction or matter addressed herein.

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