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Executive Summary TABLE ES-1 (CONTINUED) SUMMARY OF IMPACTS AND MITIGATION MEASURES Environmental Impact Mitigation Measures Level of Significance (Level of Significance Prior to Mitigation) After Mitigation 4.4.3 Project-generated traffic could result in accelerated 4.4.3 Pavement Upgrades and Replacement.As a condition of approval, Less than Significant pavement deterioration on study area roadways.This the project applicant or successor-in-interest will be required to enter would be a potentially significant impact. (PS) into an agreement with the San Joaquin County Department of Public Works regarding the replacement/upgrade and maintenance of roadways affected by the project. Upgrades and replacements will be completed to the Traffic Index identified in Table 4.45,unless the County determines the need for a different Traffic Index based on future counts. Stewart Road Between Interstate 5 and Koster Road: The project applicant or successor-in-interest shall contribute its fair share to future pavement upgrades on this road segment. Noise 4.5.1 Noise generated by mining equipment and excavation 4.5.1a At the start of stripping operations for each phase,the applicant shall Significant activities would result in an increase in the ambient noise construct an earthen berm along the portions of the project site that levels at the nearest residence(s).This would be a face sensitive receptors located within 2,000 feet of mining operations potentially significant impact.(PS) for that phase.This includes residences R4 and RS northeast of Phase I(this earthen berm would also attenuate noise to residences R5, R6,and R7)and residences R1, R2,and R3,west of Phase III and southwest of Phase IV.The sound barriers must be at sufficient height(approximately 10 feet)to block the line of sight to the nearest sensitive receptor. If continuous earthen berms of adequate size are already in place,additional berms would not needed. 4.5.1b The Applicant shall conduct additional noise measurements after the completion of initial stripping activities to evaluate the effectiveness of Mitigation Measure 4.5.1a in reducing resultant sound levels at outdoor activity areas of nearby sensitive receptors. For those residences existing as of project approval requiring additional sound reduction,the Applicant shall fund the construction of solid walls (masonry walls or other similar construction)along those property lines of the residences facing the project site,if desired and allowed by the subject property owners. 4.5.1c For any residences that would exceed an interior noise level of 45 dBA, Leq indoors,the applicant shall upgrade house noise reduction via window and door upgrades on the side of the houses facing the mine,if the landowner desires and allows the work to be done. Cemex Vernalis Quarry Mining and Reclamation Protect ES-8 ESA 1703015 Final Environmental Impact Report June 2008