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.I <br />7 <br />J <br />1 <br />r <br />COLORADO - CDPS W ET TEST REPORT FORM -CHRONIC <br />PERMITTEE: Twentymile Coal Company CDPS NO. CO-0042161 OUTFACE: 001 <br />TYPE TEST: ROUTINE: k7{ ACCELERATED:- TEST SPECIES: ~romelas <br />TEST RESULTS LETHALITY GROWTH STATISTICAL METHOD <br />Concentration with Statistical Difference 50% 50% Steel's Man -One RanWDunnett's <br />Pass/Fail Fail N/A <br />IC2. 36.1°/a 32.1% Bootstra <br />Pass/Fail Fail N/A <br />TEST TIIvIE & DATE START 1125 AM 11/27/01 END 1150 AM 12/03/01 <br />DILUTION (% EFFLUENT) <br />MEASUREMENTS CONTROL 12.5% 25% 50% 75% 100% <br />Da I % Survival 100 100 100 100 80.0 70.0 <br />Da 2 100 100 100 85.0 40.0 32.5 <br />Da 3 100 100 100 67.5 32.5 20.0 <br />Da 4 100 100 100 57.5 25.0 7.5 <br />Da 5 100 100 97.5 50.0 I5.0 7.5 <br />Da 6 100 95.0 97.5 50.0 12.5 7.5 <br />Da 7 97.5 90.0 97.5 47.5 12.5 7.5 <br /> <br />7 Da Mean D Wei ht 0.730 0.783 0.699 0.2] 1 0.025 0.054 <br /> <br />' H (MaximumlMinimum) 8.5/7.8 8,6/8.3 8.7/8.4 8.7/8.4 8.7/8.4 8.8/8.3 <br />RECEIVING WATER USED FOR DILUTION? NO TOTAL RESIDUAL Cl- (mg/1): <0.1 <br />HARDNESS Lm~/I) REC'V WATER: EFFLUENT: 692 RECON WATER: I10 <br />ALKALINITY (_m_e/1) REC'V WATER EFFLUENT: 1072 RECON WATER: 87 <br />TOT AMMONIA ~/I)' INITIAL 100%: :.A.O FINAL 100%: X4.0 <br />WERE ALL TEST CONDITIONS IN CONFORMANCE WITH DIVISION GUIDELINES? YES <br />1F NO, LIST DEVIATIONS FROM TEST SPECIFICATIONS: <br />LABORATORY: COMMERCIAL TESTING & ENGINEERING ANALYST: <br />~~ <br />4/14100 <br />COMMERCIAL TESTING & ENGINEERING CO, <br />~~.~ Lt~ <br />Wriplnel Watarmarketl For Your Vrotection e,c. ~e <br />