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<br /> <br />MASS BALANCE CALCULATIONS TO DETERMINE THE MAXIMUM NITRATE <br />CONCENTRATIONS EXPECTED IN GROUND WATER AS A RESULT OF USE OF <br />PAD 3 MATERIAL AS ROAD BASE (REVISED). <br />Squaw Gulch: <br />>300 acres -hydrologic basin above SGMW-lA & 1B <br />22.1 acres -potential area of haul roads and parking lots that could receive Pad 3. <br />or <br /><8% of the hydrologic basin above SGMW-lA & 1B. <br />40.1 mg/L NO, -maximum concentration from 16 contact tests. <br />3.0 mg/L NO, -maximum addition of nitrate at the monitoring point due to use of Pad <br />3 material. <br />Arequa Gulch: <br />> 1000 acres -hydrologic basin above CRMW-3A & 3B <br />-200 acres -leach pad <br />> 800 acres of effective hydrologic basin <br />64.7 acres -potential area of haul roads and parking lots that could receive Pad 3. <br />or <br />8% of the hydrologic basin above CRMW-3A & 3B. <br />40.1 mg/L NO, -maximum concentration from 16 contact tests. <br />3.2 mg/L N03 -maximum addition of nitrate at the monitoring point due to use of Pad <br />3 material. <br />Wilson Creek (above the ADR Plant): <br />> 300 acres -hydrologic basin above MW6-x. <br />2 acres -potential area of haul roads and parking lots that could receive Pad 3. <br />or <br />< l% of the hydrologic basin above MW6-x. <br />40.1 mg/L NO, -maximum concentration from 16 contact tests. <br />0.27 mg/L NO, -maximum addition of nitrate at the monitoring point due to use of Pad <br />3 material. <br />