Reso13 PC 13-09 2859 Initial Study Mitigated Negative Declaration Kensington

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Air Basin. Therefore,the BAAQMD thresholds have been used in this analysis to determine the project's impact on GHG emissions. Greenhouse gas emissions from the proposed project would include emissions from construction and operation of the project. The GHG emissions from the project include: • Construction emissions; • Emissions from the manufacture and transport of building materials; • Mobile emissions (e.g., emissions from combustion of fossil fuels for vehicle trips to and from the site) • Emissions from the generation of electricity to operate lighting, appliances, and HVAC on the site, and to convey water to the site. 4.7.3.1 Operational Greenhouse Gas Emissions (Long Term Emissions) BAAQMD has developed screening criteria to provide a conservative indication of whether a project could result in potentially significant GHG impacts. If the screening criteria are not met by the project,then a detailed assessment of GHG emissions is not required and the project is assumed to have a less than significant impact. Based on the Operational-Related Criteria Air Pollutant and Precursor Screening Level Sizes table in the BAAQMD CEQA Guidelines,the proposed project is well below the operational criteria pollutant screening size of 143 assisted care dwelling units for GHG emissions. Therefore,the proposed project would not significantly increase GHG emissions and would have a less than significant operational GHG impact. (Less Than Significant Impact) 4.7.3.2 Construction Greenhouse Gas Emissions (Short Term Emissions) GHG emissions would occur during demolition of the existing building and hardscape, grading of the site, and construction of the project. As previously mentioned, BAAQMD does not have an adopted threshold of significance for construction related GHG emissions. Construction of the project would involve emissions associated with equipment and vehicles used to construct the project, as well as emissions associated with manufacturing materials used to construct the project. The project would salvage or recycle discarded building materials (i.e., existing hardscape and remnant materials from construction)in order to reduce the amount of demolition and construction waste going to the landfill. The project site is an infill site located in an urbanized location within close distance of construction supplies and equipment. These project features would help to minimize GHG emissions generated from transport of construction materials and waste associated with the project. There is no reliable method to estimate construction-related emissions associated with the manufacturing of project materials. Given that the project is in an urban setting close to construction supplies and equipment,the small size of the project and limited construction schedule,that discarded materials will be salvaged or recycled, and that the project will implement the best management practices outlined in Section 43 Air Qualiry, manufacture and construction of the project would not contribute substantially to local or regional GHG emissions. (Less than Significant Impact) Kensington Assisted Living Facility Project 43 Initial Study Redwood City Apri12013