ARCHIVED REPORTS_1993_1 - Laserfiche WebLink

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• Suspension of dust -producing activities when wind speed is equal to or greater than 20 mph. dWF;Ag P@FiGGIS Qf h-91; W -WhGR (JUSt GONFON _M_G;2G161F98 aFG WAG1414e_�In_mm�id v;sibig di-19+WMG& I • During the dry season (May -October), and as necessary for the control of fugitive dust, provide equipment and staffing for watering of all exposed or disturbed soil surfaces at least twice daily, including weekends and holidays. A dust palliative or suppressant, added to water before application, should be utilized. • Continuously sprinkle or chemically stabilize temporary stockpiles of soil. Soils to be stockpiled for longer than 3 months should be seeded and watered. • Limit the speed of all haul trucks to 15 miles per hour while on site. • Any materials transported by truck will be covered or wetted down to control dust. • All disturbed but inactive portions of the site will be watered with an appropriate dust suppressant, covered or seeded. • The entire paved area is to be cleaned as needed to control fugitive dust. Impact 1 4.7-2 The project would change emissions within the regional air basin. The project create some new pollutant sources while avoiding truck and auto travel associated with waste disposal. The net effect of the project would be to reduce emissions within the region by creating a more efficient system for solid waste disposal. The project would create, however, the potential for localized nuisance impacts. The proposed project would create several new sources of air pollutants. Specifically the project would result in new emissions from landfill transfer trucks, on-site equipment (front-end loaders, forklifts and windrow turners), employee vehicle trips and material handling. Each of these new sources has been estimated based upon a 600 ton per day throughput for the proposed facility. The methodology and assumptions used in estimating these emissions are described in Appendix D. The project would also eliminate some sources of air pollutants that would occur without the proposed project. Without a Tracy MRF, solid waste would have to be hauled directly to the Foothill Landfill. The emissions associated with direct hauling of solid waste to the Foothill Landfill have been estimated based upon a 45 -mile one-way travel distance. These avoided emissions are shown in Table 4.7.3. The methodology and assumptions used in estimating these emissions are described in Appendix D. The net effect of the project would be to reduce emissions of regional pollutants by a small amount. The project would therefore have a beneficial impact on regional air quality. While the project would benefit regional air quality, it would result in increased on-site emissions that could affect surrounding land uses. Of the on-site emissions shown in Table 4.7.3, PM -10 would have the greatest potential for affecting surrounding land uses. Deposition of particulate matter on agricultural crops may be increased near the project site. Project impacts on local land uses are considered to be potentially significant. On-site equipment would be subject to the rules and regulations of the San Joaquin Valley Unified Air Pollution Control District. Equipment subject to District regulation could include a screen/trommel within the MRF/Transfer. Station, wood tub grinder and screen, conveying ER -93-1 - 88 - (9-27-93) 1