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2 Environments 7.B. - Page 75 <br /> in these guidelines,based on the factual information that the BAAQMD developed while formulating <br /> the guidelines (see the discussion under Air Quality). <br /> VII. GREENHOUSE GAS EMISSIONS- Potentially Less Than Less Than No <br /> -Would the project: Significant Significant Significant Impact <br /> Impact with Impact <br /> Mitigation <br /> Incorporation <br /> a) Generate greenhouse gas emissions, ❑ ❑ ® ❑ <br /> either directly or indirectly,that may have <br /> a significant impact on the environment? <br /> b) Conflict with an applicable plan,policy ❑ ❑ ® ❑ <br /> or regulation adopted for the purpose of <br /> reducing the emissions of greenhouse <br /> gases? <br /> a) Generate greenhouse gas emissions, either directly or indirectly, that may have a <br /> significant impact on the environment? <br /> Although construction and operation of the US 101 undercrossing and Bair Island pump station <br /> would generate greenhouse gases,the long-term operation of the underpass would reduce vehicle <br /> trips in the areas and would result in a net reduction in greenhouse gases. <br /> Construction of the project would last approximately 13 months and would result in GHG emissions <br /> from construction equipment,worker commute vehicles,and delivery trucks. The proposed project <br /> construction activities would emit approximately 127.7 metric tons of carbon dioxide equivalent gases <br /> (see Appendix C). The proposed project would incorporate the BAAQMD best management <br /> practices to reduce GHG emissions during construction (see GHG 1 and AIR 1) and would meet the <br /> significance threshold. The following mitigation measures would reduce the impacts of the project <br /> on greenhouse gas concentrations during construction. <br /> Mitigation Measure GHG 1: Best Management Practices (BMPs) for Reducing GHG <br /> Emissions from Construction <br /> The City shall encourage the Contractor to implement the following BMPs during <br /> construction of the proposed project,where appropriate: <br /> • At least 15 percent of the construction vehicle fleet shall use alternative fuel. <br /> • At least 10 percent of the materials used for project construction shall be sourced <br /> locally (within 50 miles of the project site). <br /> • At least 50 percent of the waste generated by project construction shall be recycled or <br /> reused. <br /> 2-35 US 101 Pedestrian Undercrossing and Bair <br /> Island Road Storm Drain Pump Station Project <br />