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<br />SeaCrest Project Number. 300370 <br />COLORADO -CDPS WET TEST REPORT FORM -ACUTE <br />PERMITTEE: Seneca Coal Company CDPS No: CO-0000221 OUTFACE: 006 <br />TYPE TEST: Routine: XX Accelerated: Test Species: Ceriodaphnia dubia <br />TEST RESULTS: LC50: >100°!0 <br />STATISTICAL METHOD: Probit <br />Test Time & Date: Begin: 11:15, August 29, 2000 End: 11:10, August 31, 2000 <br />Dilutions (Percent Effluent) <br />Measurements Control <br />OYe 12.59'. 25% 50% 75% 100% XX <br />No. @ Start of Test 20 20 20 2D 20 20 XX <br />No. Live after 24 hours 19 20 20 20 20 19 XX <br />No. Liva after 4a hours 19 20 20 20 20 19 XX <br />No. IJve after 72 hours XX XX )U( XX XX XX XX <br />No. Live after 96 hours XX XX XX XX XX XX 7(X <br />Receiving Water Used for Dilution: Yes: No: XX Total Resid. Chlorine, mglL: 100%: 0.01 <br />Hardness, mg/L: Receiving Water: NA Effluent: 966 Recon. Water. 91 <br />Alkalinity, mg/L: Receiving Water. NA Effluent: 252 Recon. Water: 55 <br />pH: Initial -Control: 7.5 100%: 8.1 Final -Control: 7.6 100%: 8.3 <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 />ANALYST'S NAME(S): Geoff Henderson, Stacey Breslow <br />SIGNATURE/DA <br />