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TABLE: 31 <br />WILLIAMS FORK MINE <br />2012 ANNUAL HYDROLOGY REPORT <br />WATER QUALITY MONITORING DATA <br />Site: 1SP (022, No. 1 Strip Pit Discharge) <br />CATEGORY <br />PARAMETER <br />ANALYSIS TYPE <br />UNITS <br />JAN <br />JAN <br />FEB <br />MAR <br />APR <br />Date <br />No flow first 3 <br />weeks <br />1/31/2012 <br />2/8/2012 <br />2/17/2012 <br />2/23/2012 <br />2/27/2012 <br />3/14/2012 <br />3/21/2012 <br />3/29/2012 <br />4/5/2012 <br />4/13/2012 <br />4/20/2012 <br />Water level <br />FIELD <br />FT <br />0 042 <br />0 042 <br />0 042 <br />0 083 <br />0 083 <br />0 083 <br />0 125 <br />0 125 <br />0 083 <br />0 083 <br />0 083 <br />Flow <br />FIELD <br />CFS <br />00009 <br />00009 <br />00009 <br />00049 <br />00049 <br />00049 <br />00135 <br />00135 <br />00049 <br />00049 <br />00049 <br />PHYSICAL <br />CONDUCTIVITY <br />FIELD <br />UMS /CM <br />2020 <br />2032 <br />2080 <br />2010 <br />1960 <br />1910 <br />1990 <br />2080 <br />2000 <br />1989 <br />2012 <br />TEMP <br />FIELD <br />CELCIUS <br />4 <br />4 <br />4 <br />5 <br />5 <br />4 <br />62 <br />69 <br />72 <br />76 <br />8 <br />PH <br />FIELD <br />S U <br />81 <br />8 <br />81 <br />8 <br />1 77 <br />80 <br />8 <br />82 <br />81 <br />1 815 <br />82 <br />SOLIDS <br />TOT -DISS, LAB <br />MG /L <br />1518 <br />1620 <br />SUSPENDED <br />MG /L <br />< 20 <br />< 20 <br />6 <br />5 <br />< 20 <br />< 20 <br />CATIONS <br />CALCIUM <br />DISSOLVED <br />MG /L <br />MAGNESIUM <br />DISSOLVED <br />MG /L <br />ANIONS <br />SULFATE <br />NOT APPLICABLE <br />MG /L <br />PRIMARY <br />CADMIUM <br />POT DISSOLV <br />UG /L <br />LEAD <br />POT DISSOLV <br />UG /L <br />MERCURY <br />TOTAL RECOV <br />UG /L <br />SELENIUM <br />POT DISSOLV <br />UG /L <br />SECONDARY <br />ARSENIC <br />TOTAL <br />UG /L <br />COPPER <br />POT DISSOLV <br />UG /L <br />IRON <br />TOTAL RECOV <br />UG /L <br />370 <br />590 <br />140 <br />110 <br />MANGANESE <br />POT DISSOLV <br />UG /L <br />NICKEL <br />POT DISSOLV <br />UG /L <br />SILVER <br />POT DISSOLV <br />UG /L <br />ZINC <br />TOTAL RECOV <br />UG /L <br />< 50 <br />< 50 <br />< 50 <br /><50 <br />POT DISSOLV <br />UG /L <br />Note <br />