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CATEGORY <br />PARAMETER <br />ANALYSIS TYPE <br />UNITS <br />JAN <br />FEB <br />MAR <br />APR <br />MAY <br />JUN <br />Date <br />6/17/2011 <br />6/21/2011 <br />6/24/2011 <br />6/30/2011 <br />7/8/2011 <br />Water Level <br />FT <br />0.42 <br />0.42 <br />0.42 <br />0.42 <br />0.44 <br />Flow <br />CFS <br />0.912 <br />0.912 <br />0.912 <br />0.912 <br />1.01 <br />PHYSICAL <br />CONDUCTIVITY <br />LAB <br />UMS /CM <br />1430 <br />1450 <br />1440 <br />1440 <br />1440 <br />PH <br />LAB <br />S.U. <br />8.3 <br />8.3 <br />8.2 <br />8.3 <br />8.2 <br />SOLIDS <br />TOT -DISS, LAB <br />MG /L <br />890 <br />900 <br />SUSPENDED <br />MG /L <br />8 <br />5 <br />< 20 <br />< 20 <br />CATIONS <br />CALCIUM <br />DISSOLVED <br />MG /L <br />MAGNESIUM <br />DISSOLVED <br />MG /L <br />SECONDARY <br />IRON <br />TOTAL RECOV <br />UG /L <br />330 <br />200 <br />160 <br />210 <br />ZINC <br />TOTAL RECOV <br />UG /L <br />< 50 <br />< 50 <br />< 50 <br />< 50 <br />TAE 7 <br />TABLE : 17 <br />TWENTYMILE COAL COMPANY <br />2011 ANNUAL HYDROLOGY REPORT <br />WATER QUALITY MONITORING DATA <br />Site: 5D (OUTFALL 003, No. 5 Mine Discharge) <br />Note : <br />PUMP DOWN <br />FROM LAST <br />QUARTER OF <br />2010 INTO JUNE <br />2011 BEFORE <br />BEING <br />REPLACED <br />