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SeaCrest Project Number. 399272 <br />COLORADO -CDPS WET TEST REPORT FORM -ACUTE <br />PERMITTEE: Mountain Coal CDPS No: CO-0038776 OUTFACE: 013 <br />TYPE TEST: Routine: XX Accelerated: Test Species: Pimephales promelas, 9 days old <br />TEST RESULTS: LC50: >100% <br />STATISTICAL METHOD: Probit <br />Test Time & Date: Begin: 11:00, July 15, 1999 End: 11:00, July 19, 1999 <br />Dilutions (Percent Effluent) <br />Meawraments Control <br />OYs 7.99E 12.SY. 259'° SOY. 700% NA <br />No. @ Start of lest 40 40 40 40 40 40 XX <br />No. Live after 24 hours 40 40 40 40 40 40 Xl( <br />No. Live after 4B hours 40 40 40 40 40 40 XX <br />No. Live after 72 hours 40 39 39 40 40 40 X?( <br />No. Live after 96 hours 40 39 39 40 40 40 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: 46 Recon. Water. 86 <br />Alkalinity, mg/L: Receiving Water. NA Effluent: 1830 Recon. Water. 57 <br />pH: Initial -Control: 8.1 100%: 8.3 Final -Control: 7.7 100%: 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: THE SEACREST GROUP <br />COMMENTS: <br />ANALYST'S NAME(S): Geoff Henderson, Kevin ~Imstead <br />SIGNATURE/DATE: ~..~/ /~ • C~ <br />