SU0004094 - Laserfiche WebLink

Home Browse Search

2.Executive Summary TABLE 2-1 (CONTINUED) SUMMARY OF IMPACTS AND MITIGATION MEASURES Environmental Impact Mitigation Measures Level of Significance (Level of Significance Prior to Mitigation) After Mitigation 4.8.2 Accidental spill,leaks,or improper disposal of petroleum 4.8.2 Implement Mitigation Measure 4.11.2. Less than Significant fuel would increase the potential for degradation of groundwater quality over the life of the project.This would be a potentially significant impact.(PS) 4.8.3 Excavation that disturbs and/or truncates the existing 4.8.3 Prior to the commencement of excavations,the project Less than Significant groundwater well shafts on the project site could increase applicant shall conduct a comprehensive well survey to the potential for contaminants to enter and pollute the locate,identify,and confirm all existing groundwater wells groundwater through the wells.This would be a on the project site?Information for well locations shall be potentially significant impact.(PS) obtained,if available,from DWR,San Joaquin County Environmental Health Departmenr1t,Stanislaus County, and the former property owi a Z—roundwater wells that will not remain in operation shall be properly destroyed and removed in accordance with the DWR Well Standards,depending on location,under permit and inspection from either the Stanislaus County Department of Environmental Health or San Joaquin County as per the San Joaquin County Development Title,Section 9-1115.5(e).The well destruction shall be designed to create a sanitary seal that would not conduct vertical water flow in the event that the well is truncated or damaged during mining operations. 4.8.4 Groundwater extraction associated with the proposed 4.8.4 No mitigation is required. project could lower groundwater levels beyond the project boundaries,causing lower local or regional groundwater levels that are below the current pumping depths of existing private or municipal groundwater supply wells. This would be a less-than-significant impact. (LS) 4.8.5 Reuse of excavated overburden containing clay and silts No mitigation is required. combined with equipment compaction of the reclaimed mine areas could decrease infiltration of surface water and reduce groundwater recharge from the project site throughout the life of the project and after reclamation. This would be a less-than-significant impact.(LS) 4.8.6 Mining out Hospital Creek and constructing a berm to 4.8.6 The applicant shall implement the Mining Plan Option 1 Implementation of Mitigation form a large detention basin(Mining Plan Option 2)would as described in Chapter 3.0,Project Description,and Measure 4.8.6 would eliminate the substantially alter the natural hydrology of Hospital shown graphically in Figure 3-3.Mining Plan Option 1 downstream hydrologic issues Creek.This option would permanently remove surface requires the applicant to leave Hospital Creek in place, associated with removing Hospital RMC Pacific Vemalis Quarry Mining and Reclamation Project 2-16 ESA/Project No.203015 Draft Environmental Impact Report May 2006 I I 1 1 1 1 1 1 1 I 1 1 1 1 1 t l l l