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Client: Western Fuels CO- 0000213 SCG Project No.: 311693.13 <br />Site: New Horizon Mine 007 <br />WET TEST REPORT FORM — CHRONIC <br />Permittee: Western Fuels Colorado Outfall: 007 <br />Permit No.: CO- 0000213 <br />Test Type: Routine ® Accelerated ❑ <br />Test Species: Ceriodaphnia dubia IWC: 100% <br />Test Start Test End <br />Time Test Start Date Time Test End Date <br />1100 10 -04 -2011 1200 10-10-2011 <br />Test Results <br />Lethality <br />Reproduction <br />NOEC <br />100% <br />100% <br />100% <br />PASS <br />PASS <br />IC25 <br />>100% <br />61.7% <br />100 <br />PASS <br />FAIL <br />Dilution(s) - % Effluent <br />Measurements <br />Control <br />0 %Z <br />20% <br />40% <br />60% <br />80% <br />100% <br />% Sun -ival for day 1 <br />100 <br />100 <br />100 <br />100 <br />100 <br />100 <br />° o Survival for day 2 <br />100 <br />100 <br />100 <br />100 <br />90 <br />100 <br />° o Survival for day 3 <br />100 <br />100 <br />90 <br />90 <br />80 <br />100 <br />° 0 5urvivai for day 4 <br />100 <br />100 <br />90 <br />90 <br />70 <br />100 <br />°,'o Survival for day 5 <br />100 <br />100 <br />100 <br />90 <br />90 <br />70 <br />100 <br />% Survival for day 6 <br />00 <br />90 <br />90 <br />70 <br />80 <br />Mean 3 Brood Total <br />E12.1 <br />34.5 1 <br />27.0 <br />25.2 <br />22,1 <br />229 <br />Hardness (mg4.) — Receiving Water: N/A Effluent: 327/303/324 Recon Water: 85 <br />Alkalinity (mg/L) — Receiving Water: N/A Effluent: 176/186/210 Recon Water: 63 <br />Chlorine (mg/L) — Effluent: <0.01 pH (initial /final) — Control: 8.2/8.2 100 %: 8.3/8.7 <br />Total Ammonia as NH3 (mg/L) - Effluent: 0.177/ <0.03 / <0.03 <br />Were all Test Conditions in Conformance with Division Guidelines? YES ® NO ❑ <br />If NO, list deviations from test specifications: <br />Laboratory: SeaCrest Group <br />Comments: <br />Analyst's Name: Chelsea Justis and Katia Hannah <br />:y <br />F >, Date <br />SeaCrest Group 18 <br />