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either the mine or loadout areas and physical separation between Southfield's <br />ongoing mining operations and the Trinidad Sandstone by approximately 300 <br />to 400 feet of relatively impermeable siltstones and shales effective precludes <br />any potential mining related impacts on this unit. Mining and related activities <br />are expected to result in some localized impacts on groundwater flows and <br />levels. However, EFCI's operations will not result in disturbance or direct <br />impacts to any groundwater recharge areas. Groundwater recharge mechanisms <br />in the mine and loadout areas are not well understood. However, it is believed <br />that recharge occurs in outcrop areas to the east of the mine area or along the <br />Wet Mountain fault and at the margins of adjacent upturned sedimentary units. <br />Since no direct impacts on recharge areas will occur and impacts on recharge <br />mechanisms will be localized and temporary as described in Section 2.05.6, <br />Mitigation of Surface Coal Mining Operation Impacts, no specific measures are <br />necessary to protect or restore groundwater recharge capacity. <br />4.05.13 SURFACE AND GROUNDWATER MONITORING <br />The groundwater monitoring program described in Section 2.05.6, Mitigation of <br />Surface Coal Mining Operation Impacts, provides relevant information on <br />groundwater levels, recharge and discharge rates and water quality. The <br />Hydrologic Monitoring Plan (Exhibit 25), insures a frequency and distribution of <br />groundwater data collection adequate to identify and document trends and <br />fluctuations in the quantity and quality of groundwater and the overall effects <br />of mining on the hydrologic balance. The groundwater monitoring data and <br />resulting evaluations will be used to identify any potential problems on a timely <br />basis and develop any necessary mitigation measures. <br />The surface water monitoring plan together with the monitoring required for <br />NPDES permits is described in Section 2.05.6, Mitigation of Surface Coal Mining <br />Operation Impacts, and the Hydrologic Monitoring Plan (Exhibit 25). This plan <br />provides for measurement and recording of the quantity and quality of all <br />discharges from the permit area. The frequency, density and accuracy of <br />monitoring will allow <br />4.0 5 - 2 5 Revised 10/04/07 <br />MR-55 <br />