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Analysis The existing quarry was originally permitted in 1957, and renewed under EP-75-3 (Excavation Permit). An EIR was prepared in 1975,(EIR-75-6). The permit allowed the extraction of 1,500,000 cubic yards of sand and gravel. In 1981 EP(EP-81-61 was approved by the Board of Zoning Adjustment for the removal of 500,000 tons of material over a five year period. On August 3, 1989, the Planning Commission approved Quarry Excavation permit QX-89-2, with an expiration date of August 31, 2009. This was a renewal of EP-81-6. On March 4, 1999 the Planning Commission approved a Revision of Approved Action application to amend Ordinance Development Requirement No. 14 and Condition of Approval No.1. d. Ordinance Development Requirement No. 14: Duration of Approval: Extend the life of the permit 30 years from the original date of approval,with an expiration date of March 4, 2029. Condition of Approval No.1.d.-The excavation and rehabilitation shall progress as indicated in the submitted rehabilitation plan. The excavation and rehabilitation shall be complete prior to 30 years from the date of approval of the Revisions of Approved Actions. Neighborhood Opposition The Community Development Department received a total of 19 letters of opposition to the proposed application from 9 separate individual neighbors within the projects vicinity, including 1 letter from an attorney representing a number of the neighbors. The central issues are: noise from equipment and trucks, odor from the asphalt plant and dust. Noise Quarry excavation operations have been in existence on this site since 1957. The Community Development Department required;an acoustical study be prepared in order to analyze any project impacts as it relates to noise. An Environmental Noise Assessment was prepared by Bollard Acoustical Consultants on October 7, 2009 and submitted to the County on October 29, 2009. After reviewing the initial noise assessment, the CDD requested a revised noise assessment to address project truck traffic noise along East River Road. The initial noise assessment indicated project truck traffic noise exceeded the County Noise Standard of 65db for Transportation Noise Sources as outlined in Table 9-1025.9 of the Development Title. A revised noise assessment was submitted to the CDD on August 23, 2010. The revised noise assessment developed mitigation measures for noise generated by project truck traffic along East River Road. The following mitigation measure, which is included in the conditions of approval for the project, is expected to reduce project truck traffic noise impacts along E. River Road to at or below the County noise standard of 65db for transportation noise sources: If the extended hours of night operations begin before 10:00 p.m., the number of truck trips between the hours of 9:00 p.m. and 10:00 p.m. shall not exceed 66 truck trips (A truck trip is defined as leaving the quarry site and returning to said quarry site); and between the hours of 10:00 p.m. and 5:00 a.m. the number of truck trips shall not exceed 140 truck trips. If the applicant chooses to begin the extended hours of night operations after 10:00 p.m., the number of truck trips shall not exceed 145 truck trips. San Joaquin CountyQX-89-0002/Aggregates Inc. Community Development Page 3 w;