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Client: Mountain Coal Company CO-0038766 <br />Site: East Sly Gulch <br />SCG Project No.: 305140 <br />WET TEST REPORT FORM -ACUTE <br />Permittee: Mountain Coal Company Outfall(s}: 017 (East Sly Gulch) <br />Permit No.: CO-0038766 <br />Test Type: Routine ® Accelerated <br />Test Species: Fathead minnow <br />Test Results Statistical Begin Begin End End <br />(LC50) Method Test Date Test Time Test Date Test Time <br />>100% Probit 06-07-2005 1445 06-11-2005 1345 <br />Dilutions) - % Effluent <br />~~'~~ 'h s~`":is~ <br /> <br />Measurement5''~;u~f „" ~S~a~~5 ~ s c~ <br /> <br />~Control(0"/0),~ ~maz' ya ~w,;.r <br /> <br />t~~1,9%qx~ ~~- Y,~. t <br /> <br />`'X12.5"/og;~, ~}, ~. o~ 1~` <br /> <br />;re,,25°!0~„'~,~ . ~s ~ m Ft -~ <br />~~ ~ <br />s~?50%a~~~~, I a` ~ ,.~; <br />~ ~~« <br />q~~~LDD%~~?'. <br /># at Start of Test 40 40 40 40 40 40 <br /># live after 24-hours 40 40 40 40 40 40 <br /># live after 48-hours 40 40 40 40 40 40 <br /># live after 72-hours 40 40 40 40 39 40 <br /># live after 96-hours 40 40 37 40 39 40 <br />Hazdness (mg/1) -Receiving Water: N/A Effluent: 93 Recon Water: 97 <br />Alkalinity (mg/1) -Receiving Water: N/A Effluent: 1450 Recon Water: 60 <br />Chlorine (mg/1) - <0.01 pH (initiaUfinal) -Control: 8.2/7.8 100%: 8.8/9.1 <br />Total Ammonia as NH3 (mgll) - <1.0 <br />Were all Test Conditions in Conformance with Division Guidelines? YES ®NO <br />If NO, list deviations from test specifications: <br />Laboratory: The SeaCrest Group, LLC <br />Comments: <br />Analyst's Name: Dustin Facteau and Joel Mehlenbacher <br />otaZ <br />The SeaCrest Group 11 <br />