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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 the County has designated mining as an acceptable use on agricultural land. This would be a less-than-significant impact.(LS) 6.2 The project when combined with other large-scale mining No mitigation is required. operations in the area,would not add incrementally to the cumulative loss of agricultural production in the area.This is a less-than-significant impact.(LS) 6.3 The cumulative increase in traffic volumes associated 6.3.1 Implement Mitigation Measures 4.4.1a,4.4.1b,4.4.2, Less than significant with operation of the mine and past,present,and future 4.4.3,4.4.4,and 4.4.5 to mitigate the project's projects in the project area would result in increased incremental contribution to cumulative traffic impacts. impacts on area roadways and/or intersections. This would be a potentially significant impact.(PS) 6.4 The project will result in increased traffic volumes that in 6.4.1 Implement Mitigation Measure 4.6.2 to reduce the Significant turn will cause an incremental effect on air quality that is project's incremental contribution to cumulative air quality cumulatively considerable when considered along with impacts. past,present,and future projects in the project area. The combined impact of those projects on air quality would be a significant impact.(S) 6.5 Traffic noise levels resulting from the increase in traffic 6.5.1 Implement Mitigation Measure 4.5.3. Significant volumes associated with operation of the mine will be cumulatively considerable when considered along with past,present,and future projects in the project area, which will result in increased noise levels at residences located along truck haul routes. The cumulative impact would be significant.(S) 6.6 The slope instability hazards would remain specific to the No mitigation is required. proposed RMC project site and be localized with the _ active mining area and therefore would not contribute to a region-wide cumulative slope instability condition.This would be a less-than-significant impact.(LS) 6.7 With mitigation,the project would not contribute to 6.7.1 Implement Mitigation Measures 4.8.1a,4.8.1b,4.8.2,and Less than significant cumulative,regional adverse impacts on the lower Tulare 4.8.3 to mitigate the project's incremental contribution to Formation aquifer. Cumulative impacts would be groundwater supply and quality impacts. potentially significant.(PS) RMC Pacific Vernalis Quarry Mining and Reclamation Project 2-27 ESA I Project No.203015 Draft Environmental Impact Report May 2006