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

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HARBOR BLVD. MIXED USE TRANSIT CORRIDOR PLAN FINAL FIR CITY OF SANTA ANA 5. Environmental Analysis AIR QUALITY ■ Impact 5.2 -1 Construction activities associated with the Harbor Boulevard Mixed Use Transit Corridor Plan would generate short -term emissions that exceed the SCAQMD'S VOC and NOx regional thresholds and would significantly contribute to the particulate matter (PMlo and PMzs), ozone (Oz), and nitrogen dioxide (NO2) nonattainment designation of the SoCAB. ■ Impact 5.2 -2 Long -term criteria air pollutant emissions associated with the Harbor Boulevard Mixed Use Transit Corridor Plan would exceed the SCAQMD's VOC, CO, PM1o, and PM? s regional significance thresholds and significantly contribute to the particulate matter (PMlo and PMzs), ozone (Oz), and nitrogen dioxide (NO2) nonattamment designations of the SoCAB. ■ Impact 5.2 -3 Construction activities related to buildout of the Harbor Boulevard Mixed Use Transit Corridor Plan could expose sensitive receptors to substantial pollutant concentrations. ■ Impact 5.2 -5 The Harbor Boulevard Mixed Use Transit Corridor Plan could site sensitive land uses in proximity to major air pollution sources. ■ Impact 5.2 -6 The Harbor Boulevard Mixed Use Transit Corridor Plan is a regionally significant project that would contribute to an increase in frequency or severity of air quality violations in the South Coast Air Basin and would conflict with the assumptions of the applicable Air Quality Management Plan. 5.2.7 Mitigation Measures Impact 5.2 -1 2 -1 Applicants for new development projects within the Harbor Boulevard Mixed Use Transit Corridor Plan shall require the construction contractor to use equipment that meets the United States Environmental Protection Agency (EPA)- Certified emissions standards according to the following schedule. ■ From the end of 2011 to December 31, 2014, all project related off road diesel powered construction equipment greater than 50 horsepower shall meet Tier 3 off road emissions standards. Any emissions control device used by the contractor shall achieve emissions reductions that are no less than what could be achieved by a Level 3 diesel emissions control strategy for a similarly sized engine, as defined by CARB regulations. ■ After January 1, 2015, all off road diesel powered construction equipment greater than 50 horsepower shall meet the Tier 4 Final emission standards. Any emissions control device used by the contractor shall achieve emissions reductions that are no less than what could be achieved by a Level 4 diesel emissions control strategy for a similarly sized engine, as defined by CARB regulations. October 2014 Page 5.2 -23