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r r r IF r r tr r� r r r r r r- r r r r t <br /> 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 /> 4.6.4 Project Health Risk Impact. Implementation of the project 4.6.4a The applicant shall either utilize new model year on-site machinery Less than Significant. <br /> may lead to increases in chronic exposure at nearby equipped with the best available DPM control technology,or retrofit its <br /> sensitive receptors to certain toxic air contaminants from fleet of excavators,on-site haul trucks,and front end loaders with <br /> operation of the combination of stationary and mobile catalyzed DPM filters to minimize DPM emissions,or, in those limited <br /> sources.This impact is potentially significant.(PS) instances where the retrofit would impede the function or life of the <br /> equipment,or presents safety concerns,the applicant shall comply <br /> with alternative measures developed by the Air Board. <br /> 4.6.4b Implement Mitigation Measure 4.6.1. <br /> 4.6.5 Project Carbon Monoxide Impact.Traffic generated by No mitigation is required. <br /> the project would have the potential to affect CO <br /> concentrations along surface streets and near stagnation <br /> points such as major highways and heavily traveled and <br /> congested roadways.This increase in traffic would not <br /> only add more vehicles on the road but the increased <br /> congestion would cause non-project traffic to travel at <br /> slower speeds,thus increasing CO emissions.This <br /> impact less than significant.(LS) <br /> Geology,Soils,And Seismicity <br /> 4.7.1 The steepness of temporary excavation slopes proposed No mitigation is required.. <br /> during active mining could reach%:1 Horizontal to <br /> Vertical(H:V)and therefore could be subject to instability <br /> under certain static conditions or during an earthquake. <br /> The proposed permanent 2:1 (H:V)slopes could fail <br /> during moderate and strong earthquake ground shaking. <br /> Failure of the permanent 2:1 (H:V)during an earthquake <br /> slopes could hamper future,post-mining reclamation <br /> efforts by increasing the potential for long-term slope <br /> instability.These effects would be less than significant. <br /> (LS) <br /> Camex Vemalis Quarry Mining and Redamabon Project ES-11 ESA 1203015 <br /> Final Environmental Impad Report June 2008 <br />