2014-069 - Final Environmental Impact Report No. 2014-01

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HARBOR BLVD. MIXED USE TRANSIT CORRIDOR PLAN FINAL EIR CITY OF SANTA ANA 5. Environmental Analysis AIR QUALITY vehicles per hour�or 24,000 vehicles per hour where vertical and /or horizontal air does not mes in order to generate a significant CO impact (BAAQMD 2011). The proposed project would not produce the volume of traffic at any one intersection required to generate a CO hot spot Therefore, CO hot spots are not an environmental impact of concern for the proposed project Localized air quality impacts related to mobile source emissions would therefore be less than significant Impact 5.2 -5: The Harbor Boulevard Mixed Use Transit Corridor Plan could site sensitive land uses in proximity to major air pollution sources. [Threshold AQ -4] Impact Analysis: A project would normally have a significant effect on the environment if it would expose onsite sensitive receptors (new residents) to substantial pollutant concentrations emitted from offsite sources. Recent air pollution studies have shown an association between proximity to major air pollution sources and a variety of health effects. Because sensitive land uses are outside CARB jurisdiction, CARB established the Air Quality and Land Use Handbook: A Community Health Perspecbm in May 2005 to address the siting of sensitive land uses in the vicinity of freeways, distribution centers, rail yards, ports, refineries, chrome plating facilities, dry cleaners, and gasoline- dispensing facilities. This guidance document was developed as a tool for assessing compatibility and associated health risks when placing sensitive receptors near existing pollution sources. CARB recommendations are based on data that show that localized air pollution exposures can be reduced by as much as 80 percent by following CARB minimum distance separations, as shown in Table 5.2 -10. Table 5.2 -10 CARB Recommendations for Sitinq New Sensitive Land Uses Source Category Advisory Recommendations Freeways and High - Traffic Roads • Avoid siting new sensitive land uses within 500 feet of a freeway, urban roads with 100,000 vehicles per day, or rural roads with 50,000 vehicles per day. • Avad siting new senstve land uses within 1,000 feet of a distributon center (that accommodates more than 100 trucks per day, more than 40 trucks with operating transport refrigeration units [fRUsl Distribution Centers per day, or where TRU unit operations exceed 300 hours per week). • Take into account the configuration of existing distribution centers and avoid locating residences and other sensitive land uses near entry and exit points. • Avoid siting new sensitive land uses within 1,000 feet of a major service and maintenance rail Rail Yards yard. • Within one mile of a rail yard, consider possible siting limitations and mitt ation approaches. • Avoid siting of new sensitive land uses immediately downwind of ports in the most heavily Ports impacted zones. Consult local air districts or CARB on the status of pending analyses of health risks. Refineries • Avoid siting new sensitive land uses immediately downwind of petroleum refineries. Consult with local air districts and other local agencies to determine an appropriate se aration. Chrome Platers . Avoid siting new sensitive land uses within 1,000 feet of a chrome plater. • Avoid siting new sensitive land uses within 300 feet of any dry cleaning operation. For Dry Cleaners Using operations with two or more machines, provide 500 feet. For operations with three or more Perchloroethylene machines, consult with the local air district. • Do not site new sensitive land uses in the same building with perchloroethylene dry cleaning operations. • Avoid siting new sensitive land uses within 300 feet of a large gas station (defined as a facility Gasoline Dispensing Facilities with a throughput of 3.6 million gallons per year or greater). A 50 -foot separation is recommended for typical gas dispensing facilities. Source: CARS 2005. October 2014 Page 5.2 -19