Laserfiche WebLink
Mountain Coal Company CO - 0038766 SCG Project No.: 304225 <br />Site: West Elk Mine <br />WET TEST REPORT FORM -ACUTE <br />Permittee: Mountain Coal Company Outfall(s): 017 <br />Permit No.: CO - 0038766 <br />Test Type: Routine ^ Accelerated <br />Test Species: Daphnia magna <br />Test Results Statistical Begin Begin End End <br />(LC50) Method Test Date Test Time Test Date Test Time <br />60.5% Binomial 8-31-04 1330 9-02-04 1245 <br />Dilutions) - % Effluent <br />,,d° ''~~ ~ a .~ <br />~gasarenients~~~'?$ Control>`~` <br />3~.;_(0%), . ti~ , ~ ~`~~ <br />~,' It9%~'~,'~ ~'~,~ ". <br />~..,i `_t25% ' <br />_ ~25% ` = . ~ 4 <br />~ 50„%us ~~~'~ <br />100,"~0~..ja_F <br /># at Start of Test 20 20 20 20 20 20 <br /># live after 24-hours 20 20 19 20 18 10 <br /># live after 48-hours 20 20 16 17 14 1 <br /># live after 72-hours N/A N/A N/A N/A N/A N/A <br /># live after 96-hours N/A N/A N/A N/A N/A N/A <br />Hazdness (mg/1) -Receiving Water -N1A Effluent - 28 Recon Water - 89 <br />Alkalinity (mg/1) -Receiving Water - N/A Effluent - 2308 Recon Water - 66 <br />Chlorine (mg/1) - <0.01 pH (initial/final) -Control - 8.1/8.0 100% - 8.2/9.0 <br />Total Ammonia as N (m¢/1) - <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 <br />Comments: <br />Analyst's Name: Shannon Phelps, Amy de la Chica <br />Z ~/ <br />The SeaCrest Group 10 <br />