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<br />SeaCrest Project Number: 303417 <br />COLORADO -CDPS WET TEST REPORT FORM -ACUTE <br />PERMITTEE: Mountain Coal CDPS No: CO-0038776 OUTFACE: 017 <br />TYPE TEST: Routine: Accelerated: XX Test Species: Daphnia magna <br />TEST RESULTS: LC50; >100% STATISTICAL METHOD: Probit <br />Test Time & Date: Begin: 13:00, December 2, 2003 End: 12:15, December 4, 2003 <br />Dilutions (Percent Effluent) <br />Measurements Control <br />0% 1.9% 12.5% 25% 50% 700% NA <br />No. @ Start of Test 20 20 20 20 20 20 XX <br />No. Live after 24 hours 20 20 20 18 20 18 XX <br />No. Live after 48 hours 20 20 20 18 19 16 XX <br />No. Live after 72 hours XX XX XX XX XX XX XX <br />No. Live after 96 hours 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: 45 Recon. Water: 85 <br />Alkalinity, mg/L: Receiving Water: NA Effluent: 356 Recon. Water: 68 <br />pH: Initial -Control: 8.0 100%: 8.2 Final -Control: 8.1 100%: 9.1 <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: THE SEACREST GROUP <br />COMMENTS: <br /> <br />SIGNATURE/DA <br />