75A - PH - DEV AGMT 200 FIRST AMERICAN WAY

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City of Santa Ana Chapter 3. Environmental Impact Analysis 3,2 Environmental Resources Found to Have Less- than - Significant Impacts with Mitigation Incorporated The following resources were found to have Less- thamsignificant impacts after implementation of mitigation in The Met IS /MND: • Air Quality . Noise • Biological e PublicServices • GeologyandSoiis . Traffic • Greenhouse Gas Emissions Because the proposed project would restiltin minor development modifications to the previous project, it is expected that impacts would remain relatively the same for the resources mentioned above. A summary of The Met I3 /MND findings is provided, followed by a qualitative discussion of the impacts associated with the proposed. project modifications and significance of the impacts for each of these resources below. Mitigation measures as published in The Met IS /MND are included and have been modified slightly to correct errors in the original document. These corrections do not affect the impact conclusions or change the effectiveness of mitigation. These minor changes are shown in underline and test. 3.2.1 Air Quality The Met IS /MND found that the previous project would result in less- than - significant impacts after implementation of mitigation related to the violation of air quality standards. Less-than-significant impacts were found to occur related to conflicts with an applicable air quality plan, a cumulatively considerable increase of criteria pollutants, sensitive receptors, and objectionable odors. The project site is within the South Coast Air Basin (Basin), where state and federal air quality standards are occasionally exceeded. Similar to the previous project analyzed in The Met IS /MND, the proposed projectwould continue to contribute to regional air pollutant emissions during construction and operation; however, emissions would be reduced during construction because of the shortened construction schedule (from 22 months to 12 months) and the decreased In the amount of excavation required (front 144,£395 cubic yards to 34,000 cubicyards). Therefore, the proposed project's contribution to existing or projected air quality violations would be lower compared with the previous projectanalyzed in The Met IS /MND. Furthermore, the proposed project would be required to Implement all mitigation measures as proposed in The Met IS /MND, which are listed below. No additional or new significant impacts that were not previously addressed in The Met 1S /MND have been identified, and the proposed project would not represent a substantial change from the previous conclusions In The Met IS /MND. Applicable Mitigation Measures Mitigation Measure AQ -1: Prior to the issuance of grading permits, the City of Santa Ana Planning and Building Agency will ensure that Phase 1. of construction of the proposed project will be extended front 19 weeks to a minimum of 21 weeks, and that the maximum number of truck trips The Met at South Coast 3-2 March 2015 Addendum 75A -80