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Executive Summary TABLE ES-1 SUMMARY OF ENVIRONMENTAL IMPACTS AND MITIGATION MEASURES Level of Significance Level of Significance Environmental Impact before Mitigation Mitigation Measures after Mitigation 3.1. Visual and Lighting 3.1.1: Implementation of the project has the potential to Potentially significant 3.1.1:Ail outdoor lighting will be required to be fully shielded and shall adhere to Section Less than significant create a new source of substantial light or glare which 9-1025.6 of the Development Code in order to minimize any impacts resulting from would adversely affect day or nighttime views in the outdoor lighting on adjacent properties. area. 3.2. Transportation and Traffic 3.2,1: The Project would increase traffic volumes on Less than significant None required Less than significant area roadways. 3.3. Air Quality and Climate Change 3.3.1: The project could create objectionable odors Potentially significant 3.3.1: The operator shall incorporate additives to the rubberized asphalt mix in Significant and Unavoidable affecting a substantial number of people. accordance with accepted industry standards. The objective of the additives shall be to reduce offensive odors associated with the production of rubberized asphalt. The operator shall consider technological improvements to reduce odors, as they become available,and incorporate if feasible. 3.3.2: Project operation would not create objectionable Less than significant None required Less than significant odors affecting a substantial number of people. 3.4.Noise 3.4.1:Project asphalt plant operations would add to the Less than significant None required Less than significant noise environment in the project vicinity. 3.4.2: Off-site project haul truck traffic would add to Potentially significant 3.4.1: All project trucks shall be operated using noise-mitigating operating parameters Significant and Unavoidable the noise environment in the project vicinity. when entering or leaving the plant on East River Road. Based on testing conducted by Ballard Acoustical Consultant, Inc..the quietest haul truck operating parameters were as follows. • Empty Trucks: Travel speed at 38113 mph with engines in 8'"gear at 700-800 rpm • Loaded Trucks: Travel speed of 33-35 mph with engines in 5" or 7"gear at 1,400-1,600 rpm Furthermore,truck parking anywhere along River Road and the use of jake brakes at the McHenry Ave/E. River Road intersection and the E. River Roadlproject driveway is prohibited. The applicant shall monitor full time for compliance with these requirements beginning 30 minutes prior to any approved extended hour operations. -- ---- ---- Munn&Peri ins Quarry Excavation PF mit ES-3 FSA 7 21'CBC Final Envsonmental lmpac!Roper; SepYmhe,201"