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Grand Avenue Widening Project Environmental Impact Report Section 3.0 Impacts Related to Consistency with SCAG Air Quality Policies The SCAG air quality policies, from the Regional Comprehensive Plan and Guide, are listed in Table 3.4-4. Alternative 1 was evaluated for consistency with each of these policies. As shown in Table 3.4-4, Alternative 1 is consistent with policy 5.11. Policy 5.07 was determined not to apply to this proposed project. Therefore, Alternative 1 will not result in adverse impacts related to SCAG air quality policies. TABLE 3.4-4 CONSISTENCY WITH SCAG AIR QUALITY RELATED POLICIES Policy Number SCAG Poli Source Consistency of the Grand Avenue Widening with Policy 5.07 Determine specific programs and associated actions The assessment of options to command and needed (e.g., indirect source rules, enhanced use of control regulations is outside the scope of this telecommunications, provision of community based shuttle proposed project. Therefore, this SCAG policy service, provision of demand management based does not apply to the proposed Grand Avenue programs, or vehicle-miles-noveled/emission fees) so that widening and the No Project Alternative. options to command and control regulations can be assessed. 1 5.11 Through the environmental document review process, Refer to Sections 3.2 (Land Use and Planning), ensure that plans at all levels of government (regional, air 3.4 (Air Quality) and 3.5 (Transportation and basin, county, subregional and local) consider air quality, Circulation) in this EIR. Based on the discussions land use, transportation and economic relationships to in these sections, the proposed Grand Avenue ensure consistency and minimize conflicts. (1) widening and the No Project Alternative are consistent with this SCAG policy. Sources: (1) Growth Management Chapter of the Regional Comprehensive Plan and Guide. Impacts of Alternative 2 Related to Air Quality Short Term Air Quality Impacts Under Alternative 2 Construction under Alternative 2 will include the same two major components, demolition and construction, as described earlier for Alternative 1. The equipment for these demolition and construction activities under Alternative 2 would be the same as described earlier for Alternative 1. Similar to the analysis for Alternative 1, the analysis for Alternative 2 assumed that up to three pieces of heavy equipment would be operated simultaneously, as described below. Alternative 2 would result in short term air quality impacts during demolition and construction similar to the impacts under Alternative 1. However, because Alternative 2 would result in widening Grand Avenue in a wider total cross section than under Alternative 1, the length of time construction would occur under Alternative 2 would likely be slightly longer than under Alternative 1. Nonetheless, assuming the same level of effort of three large pieces of equipment operating simultaneously, Alternative 2 would not result in emissions that exceed the defined thresholds. Therefore, the construction related emissions of the proposed Grand Avenue widening under Alternative 2 would not be significant. In addition, as noted earlier in Section 2.4 (Geology Impacts Found Not to be Significant), mitigation measures G-3 and G-4 are proposed to reduce dust and erosion emissions associated with F.-IPROJ-ENVIGrand eirlNew Text - GrandlSection 3 SplitlSection 3.4. doe Page 3.4-13