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SeaCrest Project Number. 300168 <br />COLORADO -CDPS WET TEST REPORT FORM -ACUTE <br />PERMITTEE: Energy Fuels Coal Inc. CDPS No: CO-0036595 OUTFACE: 004 <br />TYPE TEST: Routine: XX Accelerated: Test Species: Cerlodaphnia dubla <br />TEST RESULTS: LC50: >100% <br />STATISTICAL METHOD: Probit <br />Test Time & Date: Begin: 11:15, April 13, 2000 End: 11:05, April 15, 2000 <br />Dilutions (Percent Effluent) <br />Measurements Control <br />0% 72.6% 25% 50% 7b% 700% NA <br />No. (d Start o}Test 20 20 20 20 20 20 XX <br />No. LHe after 24 hours 20 20 20 20 20 20 XX <br />No. Live after 48 hours 20 20 20 20 20 20 XX <br />No. Live after 72 hours Xx XX XX XX xX XX Xx <br />No. Live after O6 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: 415 Recon. Water. 90 <br />Alkalinity, mg/L: Receiving Water. NA Effluent: 278 Recon. Water. 52 <br />pH: Initial -Control: 8.3 100%: 8.2 Final -Control: 7.6 100%: 8.5 <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: Effluent aerated prior to use to lower DO -sample supersaturated with dissolved <br />oxygen. <br />ANALYST'S NAME(S): Geoff Henderson, Stacey Breslow <br />SIGNATU <br />