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COLORADO -CDPS WET TEST REPORT FORM -CHRONIC <br />PERMITTEE: Twentymile Coal Co. CDPS NO.: CO-0034142 OUTFACE: 1_SP <br />TYPE TEST: ROUTINE: XX ACCELERATED: TEST SPECIES: P. promelas <br />TEST RESULTS LETHALITY ~ GROWTH STATISTICAL METHOD <br />Concentration with Statistical Difference >100% >100°4. Dunnett's Test (both) <br />Pass/Fail Pass NIA <br />ICxPointEstimate >100% >100% Bootstrap <br />Pass/Fail Pass N/A <br />DILUTION (% <br />MEASUREMENTS CONTROL 12.5% 25% 50% 75% 100% <br />Day 1 % Survival 100 100 100 100 100 100 <br />Day 2 100 100 100 100 100 100 <br />Day 3 100 100 100 100 95 100 <br />Day 4 100 100 100 100 95 100 <br />Day 5 100 100 97.5 100 90 97.5 <br />Day 6 100 95 92.5 100 82.5 97.5 <br />Day 7 92.5 90 92.5 95 80 92.5 <br /> <br />7 Day Mean Dry Wei ht 0.372 0.374 0.363 0.401 0.423 0.366 <br /> <br />pH (MaximumJMinimum) 8.2/7.7 8.2/8.1 8.2/8.1 8.2!7.9 8.3/7.9 8.4/7.8 <br />RECEIVING WATER USED FOR DILUTION? NO TOTAL RESIDUAL CI (mg/l): <0_1 <br />HARDNESS (mgll): REC'V WATER: EFFLUENT: 200 RECON WATER: 80 <br /> <br />ALKALINITY (mgll): REC'V WATER; EFFLUENT: 933 RECON WATER:_ 70 <br /> <br />TOTAL AMMONIA (mq/q: INITIAL 100%: <1.0 FINAL 100%: <1.0 <br />WERE ALL TEST CONDITIONS IN CONFORMANCE WITH DIVISION GUIDELINES? YES <br />IF NO, LIST DEVIATIONS FROM TEST SPECIFICATIONS: <br />LABORATORY: SGS NORTH AMERICA INC. ANALYST KH/KW <br />