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HYDRO23682
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HYDRO23682
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Entry Properties
Last modified
8/24/2016 8:44:05 PM
Creation date
11/20/2007 3:59:36 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1980007
IBM Index Class Name
Hydrology
Doc Date
11/1/2004
Doc Name
Biomonitoring Report Dated September 23, 2004
From
SeaCrest Group
To
Mountain Coal COmpany
Permit Index Doc Type
DMR’s
Media Type
D
Archive
No
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Mountain Coal Company CO - 0038766 SCG Project No.: 304225 <br />Site: West Elk Mine <br />Abstract of Results <br />Test Concentrations: Control (0), 1.9%, 12.5%, 25%, 50%, 100% <br />20 for Daphnia magna <br />Number of Organisms/Concentration: 40 for Fathead minnows <br />Replicates at each Concentration: 4 <br />Test vessel size <br />Exposure volume <br />LC50's <br />Pass/Fail Status <br />Temperature Range (°C) <br />Dissolved Oxygen Range (mUl) <br />pH range during test <br />Daphnia magna Fathead minnow <br />30m1 250m1 <br />15m1 200m1 <br />60.5% >100% <br />FAIL PASS <br />20.6-21.0 19.0-20.9 <br />6.5-7.7 6.3-7.3 <br />7.9-9.0 7.7-8.9 <br />Control 100% <br />Alkalinity (mg/1 as CaCo,) <br />Hardness (mg/I as CaCo,) <br />Total residual chlorine (mg/1) <br />Total ammonia in effluent (mgll) <br />66/67 2308 <br />89/94 28 <br />N/A <0.01 <br />N/A <1.0 <br />The SeaCrest Group 4 <br />
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