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Client: Western Fuels CO -0000213 SCG Project No.: 315565.B <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 />----------------------------------------- <br />1400 08-18-2015 1300 08-24-2015 <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 />nihitiantO - % Effluent <br />Measurements <br />Control <br />0% <br />20% <br />40% <br />60% <br />80% <br />100% <br />% Survival for day 1 <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 />100 <br />100 <br />% Survival for day 4 <br />100 <br />100 <br />90 <br />90 <br />90 <br />100 <br />% Survival for day 5 <br />100 <br />100 <br />90 <br />90 <br />90 <br />90 <br />% Survival for day 6 <br />100 <br />100 <br />90 <br />90 <br />90 <br />90 <br />Mean 3 Brood Total <br />24.3 <br />21.9 <br />21.6 <br />21.0 <br />21.8 <br />21.3 <br />Hardness (mg/L) — Receiving Water: N/A Effluent: 1630/1517/1436 Recon Water: 86 <br />Alkalinity (mg/L) — Receiving Water: N/A Effluent: 317/356/299 Recon Water: 64 <br />Chlorine (mg/L) — Effluent: <0.01 pH (initial/final) — Control: 8.1/8.0 100%: 6.7/8.2 <br />Total Ammonia as NH3 (mg/L) - Effluent: 1.62/1.41/1.46 <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: Raelynn Kadunc and Kyra Brisson <br />Date a 11 `1 /i <br />SeaCrest Group 18 <br />