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• <br />• <br />• <br />POWDERHORN COAL COMPANY <br />TABLE 7-1 <br />DISCHARGE POINT 001 <br />PARAMETER MINIMUM AVERAGE MAXIMUM UNITS <br />First Quarter 1980 <br />Iron (as FE) 0.1 0.1 0.1 Mg/L <br />Solids Total Suspended 9.0 10.2 11.0 Mg/L <br />pH 7.76 ---- 8.41 SU <br />Solids Total Dissolved 5436 6200 7011 Mg/L <br />Specific Conductance 5.75 6.15 6.69u hos/cm <br />Second Quarter 1980 <br />Iron (as FE) 0.1 0.1 0.2 Mg/L <br />Solids Totai Suspended 10.0 12.2 30.0 Mg/L <br />pH 7.87 ---- 8.11 SU <br />Solids Total Dissolved 4118 5695 6558 Mg/L <br />Specific Conductance 4.32 5.69 6.23u hos/cm <br />Third Quarter 1980 <br />Iron (as FE) 0.1 0.16 0.39 Mg/L <br />Solids Total Suspended 10.0 22.0 36.0 Mg/L <br />pH 7,95 ---- 8.68 SU <br />Solids Total Dissolved 1439 5559 6795 Mg/L <br />Specific Conductance 1.93 5.42 6.54u hos/cm <br />Fourth Quarter 1960 No Discharge <br />