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r r i r r i r r r I r r r <br /> 2.Executive Summary <br /> TABLE 2.1 (CONTINUED) <br /> SUMMARY OF IMPACTS AND MITIGATION MEASURES <br /> Environmental Impact Mitigation Measures Level of Significance <br /> (Level of Significance Prior to Mitigation) After Mitigation <br /> The EPRP shall be provided to all employees and a copy <br /> shall be provided to local fire and rescue departments as <br /> well as to the facility file at the County of San Joaquin <br /> Community Development Department. The applicant <br /> shall update and redistribute when information changes <br /> or revisions are necessary. <br /> Hydrology And Water Quality <br /> 4.8.1 Groundwater seepage that enters the mine excavation 4.8.1 a Excavation/Groundwater Separation.The project Less than Significant <br /> and inundates the active and reclaimed mining phases applicant,shall,at no time,extend the depth of <br /> would cause groundwater losses due to evaporation, excavation below the depth of the water table and shall <br /> threaten groundwater quality,and disrupt mining and maintain a vertical separation between the water table <br /> future reuse operations.This would be a potentially and the active mining surface. Determination of the <br /> significant impact.(PS) water table depth shall be based on historic regional <br /> groundwater levels for the unconfined aquifer. The <br /> vertical separation shall be determined appropriate by a <br /> California-certified hydrogeologist or civil engineer but <br /> shall not be less than five feet. <br /> 4.8.1b Groundwater Elevation Monitoring Schedule.The <br /> applicant shall monitor groundwater to ensure that the <br /> vertical separation between the nearest groundwater <br /> surface and the lowest point of the active excavation and <br /> reclaimed phases is maintained as required by the <br /> California-certified hydrogeologist and at no less than five <br /> feet. The groundwater levels shall be monitored on-site <br /> prior to and during all phases of excavation,prior to the <br /> initiation of excavation for each phase,and in the <br /> reclaimed phases. Groundwater shall be continually <br /> monitored in the active mining area on a bimonthly basis, <br /> within a week following each large rainstorm from <br /> October through April,and monthly during the remainder <br /> of the year. Reclaimed phases shall be monitored once <br /> monthly. Monitoring technique shall be based on <br /> recommendations and approval by a California-certified <br /> hydrogeologist. <br /> RMC Parc vemalis Quant'Mining and Redamation Project 2.15 ESA/Project No.208015 <br /> Draft Environmental Impact Report May 2006 <br />