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Client: Western Fuels CO-0000213 SCG Project No.: 310624 <br />Site: New Horizon Mine 007 <br />WET TEST REPORT FORM - CHRONIC <br />Permittee: Western Fuels Outfall: 007 <br />Permit No.: CO-0000213 <br />Test Type: Routine ® Accelerated ? <br />Test Species: Fathead minnow IWC: 100% <br />Test Start Test End <br />Time Test Start Date Time Test End Date <br />1230 06-29-2010 1300 07-06-2010 <br />Test Results Lethality - Growth <br />Cone. with Stat. Difference >100% >100% <br /> PASS N/A <br />IC25 >100% >100% <br />I PASS N/A <br />Tlihitinnk) - % Effluent <br /> <br />Measurements Control . <br />0% <br />6.25%, <br />12.5% <br />25% <br />50°l0. <br />100% <br />% Survival for day 1 100 100 100 100 100 100 <br />% Survival for day 2 98 100 100 100 98 100 <br />% Survival for day 3 98 95 100-- -- 100 98 100 <br />% Survival for day 4 98 95 100 98 98 98 <br />% Survival for day 5 98 95 100 98 98 98 <br />% Survival for day 6 98 95 100 98 98 98 <br />% Survival for day 7 98 95 100 98 98 98 <br />Mean D Wt. m 0.302 0.261 0.274 0.263 0.270 0.297 <br />H -Mai/Min. _, . 83/7.7 8.5/7.9 8.6/7.9 8.8/83 8.9/8.0 9.0/8.4 <br />Hardness (mg/L) - Receiving Water: N/A Effluent: 250/187 Recon Water: 84 <br />Alkalinity (mg/L) - Receiving Water: N/A Effluent: 119/106 Recon Water: 59 <br />Chlorine (mg/L) - Effluent: 0.01 pH (initial/final) -- Control: 8.3/8.2 100%:8.7/8.9 <br />Total Ammonia as NH3 (mg/L) - Effluent: 0.09/<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: Danica Taber, Amir Thapa, and Steve Mullins <br /> <br />\9t1'4 <br />SeaCrest Group <br />21