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SeaCrest Project Number. 399127 <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: Daphnia magna <br />TEST RESULTS: LC50: >100% <br />STATISTICAL METHOD: Probit <br />Test Time & Date: Begin: 12:15, April 9, 1999 End: 12:30, April 11, 1999 <br />Dilutions (Percent Effluent) <br />Measurements Control <br />0%) 1.9% 12.5% 25% 50°/. 100% NA <br />No. ~ Start of Test 20 20 20 20 20 20 XX <br />No. Live after 24 hours 20 20 20 20 20 20 XX <br />No. Live after 48 hours 20 20 20 19 20 20 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: 102 Recon. Water: 89 <br />Alkalinity, mg/L: Receiving Water: NA Effluent: 1857 Recon. Water: 39 <br />pH: Initial -Control: 7.9 100%: 8.2 Final -Control: 7.4 100%: 8.8 <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: Organisms alive but immobile in two highest test concentrations at 48 hour test <br />termination. <br />ANALYST'S NAME(S): Robert Markovic <br />SIGNATUREIDATE: ~ ~!f!// A~. ~~ <br />