2 - EIR18-01; DA18-01; GPA18-06; AA18-10_2525 N MAIN STREET

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o Fuel Storage: Fuel storage shall NOT be permitted within 150 feet of any tree to be preserved. Refueling, servicing and maintenance of equipment and machinery shall NOT be permitted within 150 feet of the protected trees. o Debris and Waste Materials: Debris and waste from construction or other activities shall NOT be permitted within protected areas. Wash down of concrete or cement handling equipment, in particular, shall NOT be permitted within 150 feet of protected trees. • Any damages or injuries should be reported to the Project arborist as soon as possible. Severed roots shall be pruned cleanly to healthy tissue, using proper pruning tools. Broken branches or limbs shall be pruned according to International Society of Arboriculture Pruning Guidelines and ANSI A-300 Pruning Standards. 3.2 Air Quality Summary of Impacts Identified in the EIR Construction Impacts As detailed in the EIR, the Project has the potential to exceed the South Coast Air Quality Management District’s (SCAQMD) localized significance thresholds for emissions of PM10 during construction activities. Therefore, SCAQMD Rules 403(4), 1113, and 1186 to reduce particulate matter and Mitigation Measure AQ-1 requiring the construction contractor to use off-road diesel construction equipment that complies with Environmental Protection Agency/California Air Resource Board (EPA/CARB) Tier 3 emissions standards, would be implemented to reduce construction emissions below a level of significance. With implementation of SCAQMD Rules 403(4), 1113, and 1186 and Mitigation Measure AQ-1 that would be confirmed through the City’s permitting process for the Project, localized construction emissions of PM10 would be below SCAQMD thresholds and reduced to a less than significant level. (DEIR, p. 4.2-17.) Air Quality Plan Impacts As discussed in the EIR, Projects that are consistent with the regional population, housing, and employment forecasts identified by the Southern California Association of Governments (SCAG) are considered to be consistent with the AQMP. The EIR determined the Original Project is consistent with SCAG’s population, housing, and employment forecasts because the 496 new multi-family units resulting from the Original Project would constitute a 0.6 percent increase in the total number of residential units in the City, and a 2 percent increase in the number of the multi-family residential units (5+ units) within the City, and within SCAG’s projected growth. In addition, the EIR determined that the Original Project would support AQMP objectives to reduce trips, promote infill development, and balance jobs and housing. (DEIR, p. 4.2-15.) Operational Impacts As detailed in EIR Section 4.2, Air Quality, the maximum daily operational emissions would not exceed any of SCAQMD’s daily significance thresholds. Thus, the construction and operation of the Project would not result in a violation of an air quality standard or substantially contribute to an existing or projected air quality violation. (DEIR, p. 4.2-15 through 4.2-16.) Comparison of Impacts Associated with the Proposed Modified Project Construction Impacts The Modified Project would be smaller and therefore require less overall construction activity than the Original Project. The Modified Project would develop 240 fewer multi-family residential units and a smaller parking structure with 13,300 square feet less of subterranean parking. However, it would require similar daily construction activities and use of machinery that have the potential to exceed the SCAQMD’s localized significance thresholds for emissions of PM10 during construction activities. Therefore, SCAQMD Rules 403(4), 1113, and 1186 to reduce particulate matter and Mitigation Measure AQ-1 requiring the construction contractor to use off-road diesel construction equipment that 2-149