Item 16 - Construction Contract with Los Angeles Engineering, Inc. for the Bristol Street

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ENVIRONMENTAL IMPACT REPORTADDENDUM Bristol Street Widening Phase IIIA — Civic Center Drive to Washington Avenue The proposed Project would not include the construction of any structures other than relocation of existing utilities. The proposed Project would not create substantial risks to life or property and the proposed Project would not create greater impacts than previously analyzed in the 1990 FEISIEIR. Mitigation Measures No new additional mitigation measures are required. e.) Have soils incapable of adequately supporting the use of septic tanks or alternative waste water disposal systems where sewers are not available for the disposal of waste water? The proposed Project would not generate any sewage or wastewater and would not require installation of any septic tanks or alternative wastewater systems. No impacts are anticipated in this regard. Mitigation Measures No new additional mitigation measures are required. 3.7 Greenhouse Gas Emissions This section corresponds with Section IV - Environmental Consequences and Mitigation Measures, Subsections H - Air Quality, and V - Construction Impacts of the 1990 FEIS/EIR. a.) Generate greenhouse gas emissions, either directly or indirectly, that may have a significant impact on the environment? Greenhouse gas emissions (GHG) were not evaluated in the 1990 FEISIEIR. Construction activities would consume fuel and result in the generation of GHG emissions. Construction of the Project is anticipated to occur over a one-year period. Construction -related GHG emissions would cease upon completion of the Project. Due to the length of construction activities, GHG emissions associated with construction activities are anticipated to be minimal. Because construction emissions are not substantial and would cease after completion of construction, GHG emissions would not be significant. Furthermore, the Project proposes intersection widening of Bristol Street at 17u' Street and Washington Avenue, therefore only carbon dioxide (CO2) emissions from mobile -sources are evaluated. Similar to the other criteria pollutants, the highest emissions would occur between 0 to 10 miles per hour (mph) and 50 mph and above. Because the Project would improve traffic flow within the Project area, the Project would result in reduced CO2 emissions. Consequently, GHG emissions associated with the Project would be less than significant. Mitigation Measures No mitigation measures are required. b.) Conflict with an applicable plan, policy or regulation adopted for the purpose of reducing the emissions of greenhouse gases? The proposed Project would not conflict with applicable plans, policy, or regulations adopted for the purpose of reducing the emissions of GHG. The proposed Project would result in improved traffic flow, reduced vehicle idling times, and congestion. Implementation of the proposed Project would not result in new impacts to GHG. ANA 305-011 (PER 02) CITY OF SANTA ANA (01/19/2015) YU PAGE 40