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COLORADO -CDPS WET TEST REPORT FORM -CHRONIC <br />PERMITTEE: Twentymile Coal Company CDPS NO. CO-0042161 OUTFACE: 001 <br />TYPE TEST: ROUTINE: XX ACCELERATED: TEST SPECIES: P.promelas <br />TEST RESULTS LETHALTI'Y GROWTH STATISTICAL METHOD <br />Concentration with Statistical Difference 75% 47% Steel's Man -One Rank/Dunnett's <br />Pass/Fail Pass N/A <br />IC2s 56.8% 35.9% Bootstra <br />Pass/Fail Pass N/A <br />TEST TIIv1E & DATE START 1135 AM 05/22/0] END 1140 AM 05/29/01 <br />DILUTION (% EFFLUENT) <br />MEASUREMENTS CONTROL 12.5% 25% 47% 75% 100% <br />Da 1 % Survival 100 100 100 100 65.0 50.0 <br />Da 2 100 100 100 95.0 42.5 30.0 <br />Da 3 100 100 100 82.5 40.0 15.0 <br />Da 4 100 100 100 77.5 25.0 10.0 <br />Da 5 100 100 100 77.5 25.0 10.0 <br />Da 6 100 97.5 100 72.5 17.5 10.0 <br />Da 7 100 97.5 100 67.5 17.5 10.0 <br /> <br />7 Da Mean D Wei ht 0.536 0.513 0.481 0.321 0.093 0.047 <br /> <br />H (Maximum/Minimum 8.5/8.0 8.8/8.2 8.9/8.5 8.9/8.4 8.9/8.4 8.9/83 <br />RECEIVING WATER USED FOR DII,UTION? NO TOTAL RESIDUAL CI~ (mg/1): <0.1 <br />HARDNESS (m~/I]: REC'V WATER: EFFLUENT: 573 RECON WATER: 125 <br />ALKALINITY (mg/I): REC'V WATER: EFFLUENT: 978 RECON WATER: 87 <br />TOT. AMMONIA (mg[I): INITIAL 100%: X4.0 FINAL 100%: X3.0 <br />WERE ALL TEST CONDTI'IONS IN CONFORMANCE WITH DIVISION GUIDELINES? YES <br />IF NO, LIST DEVIATIONS FROM TEST SPECIFICATIONS: ,/~ <br />LABORATORY: COMMERCIAL TESTING & ENGINEERING ANALYST: C~-~..~~ <br />4/14/00 <br />COM MERCIAL TESTING & ENGINEE RING CO. <br />;gmal GoPY WalermarFeO ~~~ <br />FOi Yocr Pmlegion <br />