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Exceeded Colorado State drinking water standards. Manganese, as well as bicazbonate, calcium <br />and magnesium, were also elevated above concentrations in Harvey Gap. The increased cation <br />and anion levels reflect prolonged contact of the seepage water with the Mancos Shale formation <br />underlying Grass Valley Reservoir. There was not any change between fall and spring samples. <br />No water sampling data has been found for th ephemeral drainages of the permit azea and <br />adjacent areas. It is assumed that the water quality would be different than the perennial <br />watersheds due to their differing runoff characteristics. <br />Hydrology -Monitoring Program <br />The ground water of the permit area is monitored at the following sites (See Map HGP - 18; <br />Regional Geology and Hydrology Map): <br />Water discharging from the mine. Presently there is and has been no water being <br />discharged from the mine. <br />Water seepage from below Harvey Gap Reservoir. <br />Water discharged, which has not happened, from the mine will be monitored quarterly for <br />estimated flow and field parameters. One sample will be taken yeazly of water dischazged from <br />the mine and analyzed for th parameters listed in Table 9: Full Suite of Chemical Parameters and <br />Field Parameters. Water seepage from below Harvey Gap Reservoir is monitored annually for <br />estimated flow, water temperature, pH and specific conductance. <br />The surface water ofthe permit azea is monitored at the following sites (See Map HGP-18: <br />Regional Geology and Hydrology Map): <br />Harvey Gap reservoir outflow above the mine. <br />Harvey Gap Reservoir outflow below the mine. <br />Sediment pond outflows. <br />The estimated flow, water temperature, pH, and specific conductance are measured monthly. <br />Semi-annual (high and low flow) water samples aze taken from each sample site and analyzed for <br />the pazameters on Table 9: Full Suite of Chemical Parameters and Field Pazameters. An annual <br />hydrology report will be submitted to the Division after completion of the calendar year, by the <br />end of the following February. <br />The existing permit states that one yeaz after grading of the surface area if there aze not any <br />significant deviations of water quality, Eastside may request an alternate monitoring schedule. <br />Since there has not been any significant deviation of water quality, Eastside is requesting that all <br />Permit Renewal #4 06/28/04 59 <br />