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SeaCrest Project Number: 303130 <br />COLORADO -CDPS WET TEST REPORT FORM -ACUTE <br />PERMITTEE: Mountain Coal CDPS No: CO-0038776 OUTFACE: 017 <br />TYPE TEST: Routine: XX Accelerated: Test Species: Pimephales promelas, 1 day old <br />TEST RESULTS: LC50: >100% <br />STATISTICAL METHOD: Probit <br />Test Time & Date: Begin: 14:00, April 2, 2003 End: 13:00, April 6, 2003 <br />Dilutions (Percent Effluent) <br />Measurements Control <br />~% 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 37 37 30 32 XX <br />No. Live after 48 hours 40 40 37 37 30 32 XX <br />No. Live afler 72 hours 40 40 37 37 28 31 XX <br />No. Live after 96 hours 40 40 37 36 27 30 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: 43 Recon. Water: 93 <br />Alkalinity, mglL: Receiving Water: NA Effluent: 2259 Recon. Water: 69 <br />pH: Initial -Control: 8.1 100%: 8.3 Final -Control: 7.9 100%: 8.8 <br />Total Ammonia as N, mg/L: Initial - 100%: ** 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: ** Ammonia meter our-of-order. Replacement probe on order. <br />ANALYST'S NAME(S): Seth <br />Brandi <br />SIGNATURE/DA <br />