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City of Santa Ana Environmental Checklist Advisory Group was approved by the AQMD Governing Board in September 2011, and was directed to consider the following in updating the AQMP: latest scientific/ technological information and planning assumptions (including the 2012 Regional Transportation Plan/Sustainable Communities Strategy), updated emission inventory methodologies for various source categories, and a strategy to implement zero or near-zero emission measures to reach attainment of particulate matter and ozone standards. SCAQMD adopts rules and regulations to implement portions of the AQMP. Several of these rules may apply to construction or operation of the project. For example, SCAQMD Rule 403 requires implementing the best available fugitive dust control measures during active operations capable of generating fugitive dust emissions from onsite earth-moving activities, construction/demolition activities, and construction equipment travel on paved and unpaved roads. SCAQMD has published the CEQA Air Quality Handbook (November 1993; with section updates provided on SCAQMD website) to help local governments analyze and mitigate project-specific air quality impacts. This handbook provides standards, methodologies, and procedures for conducting air quality analyses for CEQA documents prepared within the SCAQMD jurisdiction, ht addition, SCAQMD has published two additional guidance documents-Localized Significance Threshold Methodology for CEQA Evaluations (June 2003) and Particulate Matter (PM) 2.5 Significance Thresholds and Calculation Methodology (October 2006)-that provide guidance for evaluating localized effects from mass emissions during construction. Both were used in the preparation of this analysis. Regional Comprehensive Plan and Guide The Southern California Association of Governments (SCAG) is the regional planning agency for Los Angeles, Orange, Ventura, Riverside, San Bernardino, and Imperial Counties. It addresses regional issues relating to transportation, the economy, community development, and the environment. SCAG is the federally designated metropolitan planning organization (MPO) for the majority of the southern California region and is the largest MPO in the nation. With respect to air quality planning, SCAG has prepared the Regional Comprehensive Plan and Guide (RCPG) for the region, which includes Growth Management and Regional Mobility chapters that form the basis for the land use and transportation components of the AQMP. These chapters are utilized in the preparation of air quality forecasts and the consistency analysis that is included in the AQMP. Methodology Construction Mass daily combustion emissions, fugitive PMio and PM2.5, and off-gassing emissions (e.g., evaporative emissions of volatile organic compounds [VOCs) from the application of architectural coatings and asphalt paving) were compiled using CaIEEMod, which is an emissions estimation/evaluation model developed in collaboration with air quality management districts of California. The CaIEEMod model separates the construction process into multiple phases that account for everything from structure demolition and site clearing to asphalt paving and the application of architectural coatings. Site preparation emissions (e.g., grading and excavation) would include fugitive dust emissions from soil disturbance activity, as well as combustion exhaust emissions from onsite construction equipment, haul truck trips, and worker commute trips. Structure erection and The Bat Nha Buddhist Meditation Center June 2013 Initial Study/Mitigated Negative Declaration 3-16 ICE June 2012 31 C-69