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ENVIRONMENTAL IMPACT REPORT ADDENDUM <br />Bristol Street Widening Phase IIIB — Washington Avenue to 17h Street <br />3.7 Greenhouse Gas Emissions <br />This section corresponds with Section IV - Environmental Consequences and Mitigation Measures, <br />Subsections H - Air Quality, and V - Construction Impacts of the 1990 FEIS /EIR. <br />a.) Generate greenhouse gas emissions, either directly or indirectly, that may have a significant <br />impact on the environment? <br />Greenhouse gas emissions (GHG) were not evaluated in the 1990 FEIS/EIR. Construction activities <br />would consume fuel and result in the generation of GHG emissions. Construction of the Project is <br />anticipated to occur over a one -year period. Construction- related GHG emissions would cease upon <br />completion of the Project. Due to the length of construction activities, GHG emissions associated with <br />construction activities are anticipated to be minimal. Because construction emissions are not substantial <br />and would cease after completion of construction, GHG emissions would not be significant. <br />Furthermore, the Project proposes intersection widening of Bristol Street at 176' Street and Washington <br />Avenue, therefore only carbon dioxide (CO2) emissions from mobile - sources are evaluated. Similar to the <br />other criteria pollutants, the highest emissions would occur between 0 to 10 miles per hour (mph) and 50 <br />mph and above. Because the Project would improve traffic flow within the Project area, the Project would <br />result in reduced CO2 emissions. Consequently, GHG emissions associated with the Project would be less <br />than significant. <br />Mitigation Measures <br />No mitigation measures are required. <br />b.) Conflict with an applicable plan, policy or regulation adopted for the purpose of reducing the <br />emissions ofgreenhouse gases? <br />The proposed Project would not conflict with applicable plans, policy, or regulations adopted for the <br />purpose of reducing the emissions of GHG. The proposed Project would result in improved traffic flow, <br />reduced vehicle idling times, and congestion. Implementation of the proposed Project would not result in <br />new impacts to GHG. <br />Mitigation Measures <br />No mitigation measures are required. <br />3.8 Hazards and Hazardous Materials <br />This section corresponds with Section IV - Environmental Consequences and Mitigation Measures, <br />Subsections V - Construction Impacts, X - Hazardous Materials, of the 1990 Final EIS /EIR. <br />a.) Create a significant hazard to the public or the environment through the routine transport, use, <br />or disposal of hazardous materials? <br />1 -334 (PER- 02 -01) CITY OF SANTA ANA (11/25/2013 REV2) <br />55C -49 <br />