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AAY8T80N0 %AN nn•YeVI9YD Pi0¢OT <br />YNVILLo HMF.NTAL IMPAOT N6Yq.RT ADDENOUIF AANTA ANA.,CAM-F OMNIA <br />S YFICK UG0.1ah - - <br />emissions indicate the emissions associated with construction of the Revised Project would be <br />479 metric tons carbon dioxide equivalent (CQe). <br />SCAQMD.'s GHG emissions policv for curstruction is to amortize emissions ovCr a 30 -year time <br />period. Construction of the proposed Project would result in annual emissions of 1 metric. tons of <br />CO,e per year over the course of 30 yeas-5.Tlie estimated construction emissions.would be below <br />SCAQMD's interim threshold criteria or3,00U metric tons or CO -,e per.year. Thcrofore, Project <br />-construction would be considered to have a less than significant impact related to Ca HG emissions <br />and tvonld not, dirccdy or indire city, haat asignificant impact on the environment, Therefore, no <br />mitigation is required: <br />Notwithstanding the foregoing, the Revised Project would be required to implement construction <br />exhaust conimi measures consistent with.SCAQMD Rules .402 and 403 for other;air quality <br />topics discussed above, including tnihiniizationof construction equipment idling unci <br />implementation of propd:rengine tun ia <br />ngnd exhaust controls. Both of these measures would_ <br />reduce GHG emissions during the consItntction period.. <br />Operational GIIG Emissinns..Ung-term operation of the proposed Project would generate <br />- <br />GHG emissions from ;aica and mobile sources and indirect emissions t'roiu stationary sources <br />associated with energy consumptibp..Area-source emissions would be associated with activities <br />that include landscaping and maintenance of proposed land uses, natuml urs for treating, and <br />othcrsources.'Mobilc-source emissions of GI,IGs'would'include project generated vehicle trips <br />associated with on-site residences. Increases.in stationary -source emissions would also occur al <br />oil -site utility providers as a resuli ordeniand for electricity, natural gas, and.wat6v by the <br />proposed prdject. <br />The GHG emission estimate's presented in Table A show the emissions associated with operation <br />of theRevised Project. Appendix A includes the CalEr-Nlod calculations for GHG emissions. <br />Table A: Greenhouse Gus Emissions (MetricTons Per Year) <br />Source: LSA Assnciaue , Inc., Septcnrua an i L <br />CO, = carbon dioxide <br />CH; =methane <br />h.0 = nitrous oxide <br />CO;c= carlxm dioxide e9uix•a(cnt <br />Operation of the RevisedProject would result in an uicrcase of 839.9 metric tomo of CO)e per <br />year. The estimated operational emissions would be below SCAOM D's drall threshold criteria or <br />I':.51101£.nd'•A,iarn.3unr•A'ddendumaaux pC�:YiSA b, <br />75B-85 <br />2,36 <br />O <br />cratiohal Emissions <br />Percent of <br />Emissions Source <br />CO, <br />CH, <br />A'10 <br />Me <br />Total <br />Construction Emissions <br />Area Source Emissions <br />10.8 <br />0.0 <br />00 <br />10.9 <br />I <br />Enere Source Emissions <br />307.2 <br />0.0 <br />0.0 <br />208.1. <br />25 <br />Mobile Source£missions <br />5.57:2 <br />0.0 <br />0.0, <br />557.9 <br />67 <br />lf'astc Source ;missions <br />10.0 <br />U.6 <br />O.0 <br />24.7 <br />3 <br />Water Source;missions <br />.18.3 <br />0.1 <br />U.0 <br />'21.2: <br />-2' <br />'1'otall:missinns <br />838.9 <br />100 <br />Source: LSA Assnciaue , Inc., Septcnrua an i L <br />CO, = carbon dioxide <br />CH; =methane <br />h.0 = nitrous oxide <br />CO;c= carlxm dioxide e9uix•a(cnt <br />Operation of the RevisedProject would result in an uicrcase of 839.9 metric tomo of CO)e per <br />year. The estimated operational emissions would be below SCAOM D's drall threshold criteria or <br />I':.51101£.nd'•A,iarn.3unr•A'ddendumaaux pC�:YiSA b, <br />75B-85 <br />2,36 <br />