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COLORADO -CDPS WET TEST REPORT FORM -ACUTE <br />PERMITTEE: West Elk Mine CDPS NO. CO-0038778 OUTFACE: 017 <br />TEST TYPE: ROUTINE XX ACCELERATED TEST SPECIES: Fathead Minnows <br />TEST RESULTS LETHALITY <br />LC50 >100% <br />Pass/Fail Pass <br />TEST TIME & DATE <br />START Jan. 16. 2007 END <br />10:30 AM <br />DILUTION (% EFFLUENT) <br />Jan. 20. 2007 <br />10:30 AM <br />MEASUREMENTS CONTROL 6.50% 13.00% 25.00% 50.00°k 100% <br />24hour 100 100 100 100 100 100 <br />48-hour -100 100 100 100 100 100 <br />72-hour 100 100 100 100 100 100 <br />96-hour 100 100 100 100 100 100 <br /> <br />H Maximum/Minimum 7.88-7.96 7.60-7.48 7.46-7.68 7.62-7.89 8.03-8.13 8.22-8.28 <br />RECEIVING WATER USED FOR DILUTION? NO <br />WERE ALL TEST CONDITIONS IN CONFORMANCE WITH DIVISION GUIDELINES? <br />IF NO, LIST ALL DEVIATIONS: <br />YES <br />HARDNESS (MG/L) EFFLUENT: 26.97 <br />ALKALINITY (MG/L) EFFLUENT: 1902 <br />T. AMMONIA (MG/L) INITIAL EFFLUENT: <1.0 <br />T.RESIDUAL CHLORINE (MG/L) EFFLUENT: 0.026 <br />LABORATORY: ENVIRO-CHEM ANALYTICAL, INC. <br />MHW WATER: 80.5 <br />MHW WATER: 79.8 <br />FINAL EFFLUENT: <1.0 <br />ANALYST: <br />