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Ms. Lucy Linnaus 3 June 1, 2010 <br />Senior Planner <br />Air Quality Analysis and Mitigation Measures: <br />Siting Criteria and Future Project Planning <br />The AQMD staff recognizes the proposed project provides regional air quality <br />benefits by increasing residential densities near future employment and transportation <br />centers. However, the proposed project (Transit Zoning Code) provides a mixed use <br />overlay zone for select areas that allows for mixed use development at the discretion <br />of the property owner. As a result, the proposed project could place additional <br />residential uses (e.g., single family homes, condos, and apartments) in close <br />proximity to industrial uses (e.g., auto body paint shops) and a major freeway (i.e., <br />Interstate 5). <br />AQMD -4 <br />Given that the proposed project allows for the placement of residential uses in close <br />proximity to industrial uses and Interstate 5, the AQMD staff is concerned about the <br />exposure of local residents to potentially significant sources of emissions. Therefore, <br />AQMD staff recommends that the lead agency review the CARB Handbook, which <br />offers guidance on the siting of incompatible land uses and "sensitive land uses" (e.g., <br />residences, parks and medical facilities) near industrial sources, high traffic freeways <br />and roads to design the proposed project. Further, AQMD staff requests that the lead <br />agency implement mitigation measures consistent with the advisory recommendations <br />and respective source categories in the CARB Handbook. <br />Construction Mitigation Measures <br />2. The regional and localized construction emissions from implementing the proposed <br />project could potentially exceed the AQMD's daily significance thresholds for NOX, <br />VOC, CO, PM10 and PM2.5, therefore, AQMD staff is concerned about the overall <br />implementation and effectiveness of the lead agency's construction related mitigation <br />measures. Specifically, AQMD staff recommends that where the phrases: "to the AQMD -5 <br />extent readily available," "to the extent cost effective" and "to the extent feasible" <br />appear in mitigation measures (i.e., MM4.2 -7, 4.2 -9, 4.2 -11, 4.2 -19, and 4.2 -20) that <br />the lead agency develop criteria to determine the "availability ", "cost effectiveness" <br />and "feasibility" of these measures. <br />Additionally, AQMD staff requests that the lead agency consider adding the <br />following mitigation measures to further reduce air quality impacts from the proposed <br />project: <br />❖ Reroute construction trucks away from congested streets or sensitive receptor <br />areas, <br />Consistent with measures that other lead agencies in the region (including Port <br />of Los Angeles and Port of Long Beach) have enacted, require all on -site <br />construction equipment to meet EPA Tier 2 or higher emissions standards <br />according to the following: <br />V April 1, 2010, to December 31, 2011: All offroad diesel - powered <br />construction equipment greater than 50 hp shall meet Tier 2 offroad <br />AQMD -6 <br />