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nniG 7.A. - Page 219 City of Redwood City L��....��..u�� October 8, 2012 Page 3-56 3.12 AIR QUALITY The relationships of the current Pete's Harbor project to the 2003 EIR air quality impact and mitigation conclusions are described below. Impact 15-1 Analysis: Construction Emissions. The 2003 EIR indicated that project construction activities (including construction traffic) and the effects of wind would generate fugitive dust emissions. Although the current Pete's Harbor project encompasses a reduced project site and a reduced degree of construction activity compared to the previous Marina Shores Village project, this potential remains potentially significant. The associated 2003 EIR mitigation required implementation of Bay Area Air Quality Management District (BAAQMD) recommended dust control measures. Conclusion. Modified impact; no change to mitigation. The reference to marina "filling and dredging" has been removed from the impact because these operations would not occur under the current Pete's Harbor project. The mitigation identified in the 2003 EIR for Impact 15-1 remains applicable to the current Pete's Harbor project and remains sufficient to reduce this impact to a less-than-significant level. Impact 15-2 Analysis: Project and Cumulative Impacts on Regional Emissions. The 2003 EIR concluded that the additional vehicular traffic generated by the proposed Marina Shores Village project would produce long-term emissions exceeding BAAQMD thresholds, resulting in a project-related and cumulative air quality impact. The associated 2003 EIR mitigation required implementation of the transportation demand management (TDM) measures identified in EIR chapter 7 (Transportation and Circulation), as well as additional strategies to reduce vehicle use and encourage pedestrian, bicycle, and transit modes of travel. The 2003 EIR concluded that, despite these measures (e.g., reserved carpool parking, an on-site Transportation Management Association, carsharing, cap on peak-hour trips), which could reduce overall emissions by about 15 percent (individual pollutant reductions would vary slightly from this percentage), project-related and cumulative regional emissions resulting from the Marina Shores Village project would remain significant and unavoidable. The current Pete's Harbor project proposes 411 residential units compared to the 1,930 proposed under the previous Marina Shores Village project. Other proposed changes in land use are described in chapter 2 (Proposed Project Changes) of this Addendum. The current project would generate approximately 1,926' daily trips, while the previous project would have generated approximately 14,108 daily trips. Therefore, the current Pete's Harbor project would generate approximately 14 percent of the trips generated by the previous project. Table 3.12-1 applies this approximate 14 percent factor to the regional emissions estimates for the 2003 EIR project to calculate the reduced regional emissions that would result from the current Pete's Harbor project. As shown in the table, the current project would generate regional emissions estimated to be below the BAAQMD thresholds for all identified pollutants, both without and with implementation of the identified TDM measures. Therefore, the new project's impact on regional emissions would be less-than-significant, and the mitigation identified in the 2003 EIR for Impact 15-2 would no longer be required for regional air emissions mitigation purposes. 'See Table 3.4-1 of this Addendum. T.�1106951Addenduml3(10695-01).doc