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SeaCrest Project Number:304094 <br />COLORADO -CDPS WET TEST REPORT FORM -ACUTE <br />PERMITTEE: Mountain Coal CDPS No: CO-0038776 OUTFACE: 017 <br />TYPE TEST: Routine: XX Accelerated: Test Species: Daphnia magna <br />TEST RESULTS: LC50: 44.48% STATISTICAL METHOD: Probit <br />Test Time & Date: (Begin) 15:00, April 8, 2004 (End) 14:00, April IQ 2004 <br />Dilutions (Percent Effluent) <br />e u e o ° 0 0 <br />° <br />20 20 20 20 20 20 XX <br /> 20 20 20 19 19 12 XX <br /> 20 20 18 15 10 3 XX <br />XX XX XX XX XX XX XX <br />er XX XX XX XX XX XX XX <br />Receiving Water Used for Dilution: Yes: No: XX Total Resid. Chlorine, mg/L: (100% ) <0.01 <br />Hardness(mg/L) Receiving Water: NA Effluent: 53 Recon. Water: 90 <br />Alkalinity(mg/L) Receiving Water: NA Etlluent; 2000 Recon. Water: 70 <br />pH: (InitiaVFinal) -Control: 8.1/8.1 100%: 8.3/8.9 <br />Total Ammonia as N (mg/L) Initial - 100%: <1.0 Final - 100%: NA <br />Were All Test Conditions In Conformance With Division Guidelines? Yes <br />IF NO, LIST DEVIATIONS FROM TEST SPECIFICATIONS: <br />LABORATORY: Tim SEACREST GROUP <br />COMMENTS: <br />ANALYST'S NAME(S): Amanda Wade, Shannon Phelps <br />J '/ <br />SIGNAT[1RE/DATE: lr ~/ZS/ Q`~ <br />