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LSA ASSOCIATES. INC. CEQA INITIAL STUDY /MITIGATED NEGATIVE DECLARATION MARCH SS1I PREDA STREET PIPE BRIDGES UPGRADE SAN LEANDRO. CALIFORNIA • For land use development projects (i.e., residential, commercial, industrial, and public land uses and facilities), the proposed threshold of significance for GHG emissions is (I) compliance with a qualified climate action plan or qualified general plan; (2) annual GHG emissions less than 1,100 metric tons per year; or (3) annual GHG emissions less than 4.6 metric tons per service population (residents plus employees). GHG emissions associated with implementation of the proposed project would occur over the short term from construction activities, consisting primarily of emissions from equipment exhaust. Long- term emissions from the proposed project are not expected to be a significant source of GHG emissions. The primary existing source of human- caused GHGs in the project area are vehicle and train emissions. Discussion: a) Generate greenhouse gas emissions, either directly or indirectly, that may have a significant impact on the environment, based on any applicable threshold of significance? Less Than Significant with Mitigation Incorporated. The long - term operation of the proposed project would not generate GHG emissions. However, the proposed project would result in a short -term increase in GHG emissions during construction activities due to use of vehicles and equipment that operate by the burning of fossil fuels. The burning of fossil fuels releases Carbon Dioxide and other GHGs into the atmosphere. Implementation of Mitigation Measure GHG -I would ensure that the proposed project would not generate greenhouse gas emissions that may have a significant impact on the environment, based on any applicable threshold of significance. Mitigation Measure CHC - 1: To the extent feasible and to the satisfaction of the City of San Leandro. the following measures shall be incorporated into the design and construction of the project: • On -site idling of construction equipment shall be minimized (no more than 5 minutes maximum); • All construction equipment shall be properly tuned and fitted with manufacturer's standard level exhaust controls; • The hours of operation of heavy duty equipment and /or the amount of equipment in use shall be limited; • Locally- produced and /or manufactured construction materials shall be used; • Demolished construction material shall be recycled or reused whenever possible; and • "Green Building Materials," such as those materials which are resource efficient, recycled and /or manufactured in an environmentally friendly way shall be used. b) Conflict with any applicable plan, policy or regulation of an agency adopted for the purpose of reducing the emissions of greenhouse gases? P: 1EGI080110EOA \Prada_FINAL_IS- MND.doc (03/28/11) 32