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SeaCrest Project Number: 303385 <br />COLORADO -CDPS WET TEST REPORT FORM -ACUTE <br />PERMITTEE: Mountain Coal CDPS No: CO-0038776 OUTFACE: 017 <br />TYPE TEST: Routine: XX Accelerated: <br />TEST RESULTS: LC50: >100% <br />Test Species: Pimephales promelas, 11 days old <br />STATISTICAL METHOD: Probit <br />Test Time & Date: Begin: 11:00, November 4, 2003 End: 11:00, November 8, 2003 <br />Dilutions (Percent Effluent) <br />Measurements Control <br />0% 1.9% 12.5% 25% 50% 100% NA <br />No. @ Start of Test 40 40 40 40 40 40 XX <br />No. Live after 24 hours 40 40 40 40 40 40 XX <br />No. Live aker 48 hours 40 40 40 40 40 40 XX <br />No. Live after 72 hours 40 40 40 40 40 40 XX <br />No. Live after 96 hours 40 39 40 40 39 39 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: 44 Recon. Water: 87 <br />Alkalinity, mglL: Receiving Water: NA Effluent: 1595 Recon. Water: 60 <br />pH: Initial -Control: 8.0 100%: 8.2 Final -Control: 8.0 100%: 8.8 <br />Total Ammonia as N, mg/L: Initial - 100%: <1.0 Firial - 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 />.'1i s: '; i..i ~.a z `~.~-;rz:~?Ui. f2:3i~ F'SG 3G 'vt:~ <br />.v. _`t t.';~ _ _ <br />SIGNATURE/DA <br />