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7.A. - Page 70 <br /> LSA ASSOCIATES, INC. ROCKETSHIP REDWOOD CITY ELEMENTARY SCHOOL PROJECT <br /> SEPTEMBER 2016 INITIAL STUDY/MITIGATED NEGATIVE DECLARATION <br /> Potentially <br /> Significant <br /> Potentially Unless Less Than <br /> Significant Mitigation Significant No <br /> Impact Incorporated Impact Impact <br /> VII. GREENHOUSE GAS EMISSIONS.Would the project: <br /> a) Generate greenhouse gas emissions,either directly or ❑ ® ❑ ❑ <br /> indirectly,that may have a significant impact on the <br /> environment? <br /> b) Conflict with an applicable plan,policy or regulation ❑ ❑ ❑ <br /> adopted for the purpose of reducing the emissions of <br /> greenhouse gases? <br /> a) Generate greenhouse gas emissions, either directly or indirectly, that may have a significant <br /> impact on the environment?(Potentially Significant Unless Mitigation Incorporated) <br /> The project would generate greenhouse gas (GHG)emissions during both the construction and <br /> operation periods. These impacts are discussed below. <br /> Construction Emissions. Construction activities,such as site preparation, site grading,utility <br /> engines,on-site heavy-duty construction vehicles,equipment hauling materials to and from the site, <br /> and motor vehicles transporting the construction crew would produce combustion emissions from <br /> various sources. During construction of the project,greenhouse gases (GHGs)would be emitted <br /> through the operation of construction equipment and from worker and builder supply vendor vehicles, <br /> each of which typically use fossil-based fuels to operate. The combustion of fossil-based fuels creates <br /> GHGs such as carbon dioxide (CO2),methane(CH4),and nitrous oxide (N20).Furthermore,CH4 is <br /> emitted during the fueling of heavy equipment. Exhaust emissions from on-site construction activities <br /> would vary daily as construction activity levels change. The only GHG with well-studied emissions <br /> characteristics and published emissions factors for construction equipment is CO2. <br /> GHG emissions are typically measured in terms of pounds or tons Of"CO2 equivalents" (CO2e). <br /> Using the CaIEEMod emissions estimator model to estimate construction equipment use,total project <br /> construction activities would emit approximately 259 metric tons Of CO2e.Model output sheets are <br /> included in Appendix B. <br /> The BAAQMD does not have a quantitative threshold of significance for construction-related GHG <br /> emissions. Therefore,the threshold is based on a qualitative evaluation of whether the project <br /> implements applicable BAAQMD Best Management Practices. Implementation of Mitigation <br /> Measure AIR-1 would reduce GHG emissions by reducing the amount of construction vehicle idling <br /> and by requiring the use of properly maintained equipment. Therefore,project construction impacts <br /> associated with GHG emissions would be considered less than significant. <br /> Operation Emissions.Long-term operation of the proposed project would generate GHG <br /> emissions from mobile sources and indirect emissions from sources associated with energy consump- <br /> tion. Mobile-source emissions of GHGs would include project-generated vehicle trips associated with <br /> teachers, students,visitors and other trips to the project site. Emissions would also be generated at <br /> off-site utility providers as a result of demand for electricity by the proposed project. <br /> P:1RWC1401B Rocketship Sch-I\PRODUCrSUS-MND1Public\Ra ketship Public Review 09-29-16.docx(09/29/16)PUBLIC REVIEW DRAFT 46 <br /> ATTY/RESO.0084/CC RESO ADOPTING CEQA-ROCKETSHIP CHARTER SCHOOL APPEAL <br /> REV:09-05-17 VR Page 54 of 124 <br />