RBF CONSULTING 1B - 2009 - Laserfiche WebLink

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City of Santa Ana Proposal for the Bender Ready -Mix Concrete Manufacturing Project nw; Initial Study and Mitigated Negative Declaration general description of the major phases of construction and their timing will be required for our analysis. The air pollutant emissions during construction will be compared to the SCAQMD Regional and Local Significance Thresholds. Measures to reduce dust generation are required by the South Coast Air Quality Management District. Additionally, measures are contained in the 2007 AQMP for control of construction activity emissions. These measures will be discussed in the report. Air pollutant emissions for the proposed operations will be calculated using current methodologies and emission factors. The emission estimates will not only calculate criteria pollutant emissions (i.e., CO, NO,,, SO,, VOC, PM101 and PM25) but will calculate greenhouse gas (GHG) pollutant (e.g., carbon dioxide, methane, and nitrous oxide) emissions due to the operation as well. Operational emissions will occur due to cement mixing and hauling, as well as other on -site activities. Long-term emissions will be generated due equipment utilized in this cement mixing operations and in the vehicle miles traveled from hauling trucks. The emissions generated by these sources will be assessed and compared to the SCAQMD Regional and Local Significance Thresholds (LST). A detailed discussion of the consistency of the project with the 2007 AQMP will be included. Total GHG emissions and changes in GHG emissions due to the proposed projectwill be presented and contextualized. Significance thresholds for GHG emissions are an emerging issue and the latest available state and local guidance will be utilized to determine the significance of GHG emissions. The proposed project's compliance with the California Air Resources Board's recommended discrete early action measures will be reviewed and reported. Note that a detailed analysis of potential odor related impacts is not included in our scope or cost. A brief background on odors will be presented along with the SCAQMD requirements for odor control. Features of the project that will minimize the release of the odors will also be detailed. 3.2 ACOUSTICAL ANALYSIS Noise measurements will be made at up to four locations near the project site and used to describe existing noise levels in the project vicinity. Community noise standards relevant to this project are contained in the City of Santa Ana General Plan and Noise Ordinance. These standards will be summarized and their relevance to the project discussed. The potential noise impacts can be divided into short-term construction noise, and potential impacts on surrounding land uses. Noise levels generated by construction activities will be estimated at nearby sensitive receptors. The application of the City of Santa Ana Noise Ordinance to control construction noise will be discussed. Potential noise impacts from operational activities at the cement manufacturing facility will be assessed. Noise levels generated by activities at the facility will be estimated at adjacent uses and the closest noise sensitive uses. RBF will utilize standard estimates of noise levels generated by trucks and the loaders and other equipment associated with the facility. The noise levels estimated at the receptors will be compared to the City of Santa Ana Noise Ordinance criteria to determine impacts. JN 00-000300.10P • 3 • August 27, 2009