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Jenny Soo May 8,2015 Page 5 Project Mitigation Measures The 2014 Addendum identified 10 mitigation measures in the Supplemental EIR that were applicable to the 2014 project. While the 2015 project's reduced unit count would reduce the intensity of some of the project's potential environmental impacts,the Supplemental EIR mitigation measures identified in the 2014 Addendum would still be applicable to the 2015 project. Each mitigation measure and its applicability to the 2015 project are discussed below. Air Quality Mitigation Measure 4.B-la:Prior to the issuance of a grading or building permit,whichever is sooner,the project Applicant for a potential site for rezoning shall submit an air quality construction plan detailing the proposed air quality construction measures related to the project such as construction phasing,construction equipment,and dust control measures, and such plan shall be approved by the Director of Community Development. Air quality construction measures shall include Basic Construction Mitigation Measures(BAAQMD, May 2011)and, where construction-related emissions would exceed the applicable thresholds,additional Construction Mitigation Measures shall be included on all grading, utility, building, landscaping, and improvement plans during all phases of construction. Similar to the 2014 project,the 2015 project would result in construction emissions from heavy-duty construction equipment,trucks,worker vehicle emissions,and fugitive dust emissions, albeit to a lesser degree than the 2014 project. Such emissions could contribute to cumulatively considerable net increases in air pollutants for which the project region is in nonattainment. However, implementation of Mitigation Measure 4.B-la from the Supplemental EIR would ensure that impacts from fugitive dust and other construction emissions(air pollutants,toxic air contaminants)would be less than significant and would adhere to the BAAQMD's requirements. Furthermore, Illingworth& Rodkin, Inc.who assessed the potential of the 2014 project to expose residents to unhealthy air pollutant or toxic air contaminants (TACs), concluded in an letter dated April 27, 2015 that, similar to the 2014 project,the 2015 project would not expose residents to TAC levels above the community risk threshold recommended by the Bay Area Air Quality Management District. As such, air quality impacts related to the 2015 project would continue to be less than significant. Biological Resources Mitigation Measure 4.0-la:Pre-construction Breeding Bird Surveys. The City shall ensure that prior to development of all potential sites for rezoning(Sites 1-4,6-11, 13, 14,and 16-21)and each phase of project activities that have the potential to result in impacts on breeding birds,the project Applicant shall take the following steps to avoid direct losses of nests, eggs, and nestlings and indirect impacts to avian breeding success: • If grading or construction activities occur only during the non-breeding season, between August 31 and February 1, no surveys will be required.