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SeaCrest Project Number. 300441 <br />COLORADO -CDPS WET TEST REPORT FORM -ACUTE <br />PERMITTEE: Seneca Coal Mine CDPS No: CO-0000221 OUTFACE: 012 <br />TYPE TEST: Routine: XX Accelerated: Test Species: Ceriodaphnia dubia <br />TEST RESULTS: LC50: >100% STATISTICAL METHOD: Probit <br />Test Time & Date: Begin: 15:45, October 1 D, 2000 End: 15:30, October 12, 2000 <br />Dilutions (Percent Effluent) <br />Measurements Control <br />to%1 12.5% 25% 50% 75Y° 100% XX <br />No. ~ Start oT Test 20 20 20 20 20 20 XX <br />No. Live after 24 hours 20 20 20 20 20 17 XX <br />No. Live after 46 hours 19 20 20 20 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: 548 Recon. Water: 89 <br />Alkalinity, mg/L: Receiving Water. NA Effluent: 175 Recon. Water: 56 <br />pH: Initial -Control: 7.5 100%: 8.0 Final -Control: 7.5 100%: 8.3 <br />Total Ammonia as N, mglL: Initial - 100%: <1.0 Final - 100%: NA <br />Were All Test Conditions In Conformance With Division Guidelines? Yes <br />LIST DEVIATIONS FROM TEST SPECIFICATIONS: <br />LABORATORY: THE SEACREST GROUP <br />COMMENTS: <br />ANALYST'S NAME(S): Stacey <br />SIGNATUREIDA <br />