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i <br />Client: Western Fuels CO- 0000213 SCG Project No.: 313375.13 <br />Site: New Horizon Mine 013 <br />WET TEST REPORT FORM — CHRONIC <br />Permittee: Western Fuels Colorado Outfall: 013 <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 />1 305 05 -21 -2013 1330 05 -27 -2013 <br />Test Results <br />Lethality <br />Reproduction <br />NOEC <br />100% <br />100% <br />100% <br />PASS <br />PASS <br />IC25 <br />>100% <br />>100% <br />100 <br />PASS <br />PASS <br />Dilution(s) - % Effluent <br />Measurements <br />Control <br />0% " <br />20% <br />40% <br />60% <br />80% <br />100% <br />% Survival for day l <br />100 <br />100 <br />100 <br />100 <br />100 <br />100 <br />% Survival for day 2 <br />100 <br />100 <br />100 <br />100 <br />100 <br />100 <br />% Survival for day 3 <br />100 <br />100 <br />100 <br />100 <br />90 <br />100 <br />% Survival for day 4 <br />90 <br />90 <br />100 <br />100 <br />90 <br />100 <br />% Survival for day 5 <br />90 <br />90 <br />100 <br />100 <br />90 <br />100 <br />% Survival for day 6 <br />90 <br />90 <br />100 <br />100 <br />90 <br />100 <br />Mean 3 Brood Total <br />15.1 <br />15.7 <br />16.1 <br />17.4 <br />14.3 <br />1 13.6 <br />Hardness (mg/L) — Receiving Water: N/A Effluent: 1263/2247/1268 Recon Water: 83 <br />Alkalinity (mg/L) — Receiving Water: N/A Effluent: 229/447/246 Recon Water: 58 <br />Chlorine (mg/L) — Effluent: <0.01 pH (initial /final) — Control: 8.2/8.2 100%:7.6/8.6 <br />Total Ammonia as NH3 (mg/L) - Effluent: 3.42/5.06/0.086 <br />Were all Test Conditions in Conformance with Division Guidelines? YES Ll NO U <br />If NO list deviations from test specifications: <br />Laboratory: SeaCrest Group <br />Comments: <br />Analyst's Name: Mike Mackillop, Kimberly Anderson, Melissa Mimna, and Katia Hannah <br />SeaCrest Group 18 <br />