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<br />COLORADO - CDPS WET TEST REPORT FORM -CHRONIC <br />PERMITTEE: Cvorus Twentymile Coal Co. CDPS NO. CO-0036684 OUTFACE: OOlA <br />TYPE TEST: ROUTINE: XX ACCELERATED: TEST SPECIES: C. drrbia <br />TEST RESULTS LETHALITY REPRODUCTION STATISTICAL METHOD <br />Concentration with Statistical Difference >100% 12.5% Fisher/Dunnett's <br />Pass/Fail Pass N/A <br />IGts >100% 10.1% Bootstra <br />Pass/Fail Pass N/A <br />TEST TIME 8t DATE START 0935 AM 08/31/99 END 0815 AM 09/08/99 <br />DII,UTION (% EFFLUENT) <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />MEASUREMENTS CONTROL 12.5% 21% 50% 75% 100% <br />Da 1 % Survival 100 100 100 100 100 100 <br />Da 2 100 100 100 100 100 100 <br />Da 3 100 100 100 100 100 100 <br />Da 4 100 100 100 100 100 100 <br />Da 5 100 100 100 90 80 100 <br />Da 6 100 100 100 90 70 100 <br />Da 7 90 90 100 90 70 100 <br /> <br />Mean 3 Brood Total 9.9 2.3 2.3 4.2 4.7 5.4 <br /> <br />H aximum/Minimum 8.4/7.8 8.4/8.0 8.4/8.0 8.5/8.1 8.517.9 8.5/7.8 <br />RECEIVING WATER USED FOR DILUTION? NO TOTAL RESIDUAL Cl' (mg/1): <0.1 <br />HARDNESS (mp,Ll): REC'V WATER: EFFLUENT: 1603 RECON WATER: 118 <br />ALKALINITY~mp/I~:REC'V WATER: EFFLUENT: 272 RECON WATER: 80 <br />TOT AMMONIA ~~1: INITIAL 100%: <l.0 FINAL 100%: <I.0 <br />WERE ALL TEST CONDTI'IONS IN CONFORMANCE WTTH DIVISION GUIDELINES? YES <br />IF NO, LIST DEVIATIONS FROM TEST SPECIFICATIONS: _ <br />LABORATORY: COMMERCIAL TESTING B: ENGINEERING ANALYST: CiL~~^^ -''~'~~```~ <br />4/14/99 <br />COMMERCIAL TESTING 8 ENGINEERING CO, <br />~O g nal Walermarketl For Your protection ~~~ <br />