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City of Santa Ana <br />significance thresholds for nitrogen oxides (NOx). The Approved Project will not result in any <br />changes of the construction-related daily emissions. Mitigation Measures AQ-1 and AQ-2 included in <br />the 2012 MND would continue to be required for the Approved Project to reduce short-term <br />construction emissions to a less-than-significant level, which is consistent with the analysis and <br />mitigation measures contained in the 2012 MND. <br />Biological Resources <br />The Approved Project will not result in new or changed significant impacts on biological resources. <br />Construction activities included under the Approved Project would remain unchanged compared to <br />the Proposed Project. Similarly, operation of the Approved Project will be substantially the same as <br />the operation of the Proposed Project. Removal of ornamental trees and tarplant, and the potential <br />removal of vernal barley analyzed for the Proposed Project will continue to occur under the <br />Approved Project. The 2012 MND identified impacts on two small delineated wetland areas totaling <br />0.021 acre (832 square feet) for the Proposed Project, which will not be changed by the Approved <br />Project Implementation of Mitigation Measures 13I0-1 through BIO-4 would continue to he required <br />to reduce impacts of the Approved Project related to nesting birds, protected species, and wetlands <br />to less-than-significant levels, which is consistent with the analysis and mitigation measures <br />contained in the 2012 MND. <br />Cultural Resources <br />Similar to the Proposed Project, the Approved Project will not result in significant impacts on <br />cultural resources. A cultural resources survey conducted for the project site and summarized In the <br />2012 MND did not identify any significant cultural resources on site or nearby. As a result, the <br />Project's impacts to cultural resources were determined to be less than significant. The Approved <br />Project does not change the conclusions of the 2012 MND related to cultural resources impacts. <br />Geology and Soils <br />The Approved Project will not result in new significant or increased impacts on geology and soils. <br />Site preparation, including soil excavation and export, as well as operation of the Approved Project, <br />would remain unchanged from those of the Proposed Project described in the 2012 MND, which <br />concluded that impacts would be less than significant with the incorporation of Mitigation Measure <br />GEO-1 to reduce seismic groundshaking and expansive soils impacts. The Approved Project does not <br />change the conclusions of the 2012 MND related to geology and soils, and is consistent with the <br />analysis and mitigation measures contained in the 2012 MND. <br />Greenhouse Gas Emissions <br />The Approved Project will not result in significant impacts on greenhouse gas emissions. The <br />duration of construction activities and number and type of construction equipment of the Approved <br />Project would remain unchanged from the Proposed Project. Therefore, greenhouse gas emissions <br />would be substantially the same as those described in the 2012 MND. Implementation of Mitigation <br />Measures GHG-1 through GHG-3, along with state implementation of Assembly Bill (AB) 32 Seeping <br />Measures, would continue to be required to reduce the incremental GHG emissions associated with <br />the Project by approximately thirty-three percent (33%). The Approved Project does not change the <br />The Met at South Coast Multi Family Residential P,olect June 2013 <br />Final Mitigated Negative Declaration-Addendum 4 <br />75B-64