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Table A-I Emission Thresholds Of Significance Project Pollutant Construction Tons/ Operations Pounds/Day Quarter Pounds/Day Carbon Monoxide 550 24.75 550 Reactive Organic Compounds 75 2.5 55 Nitrogen Oxides 100 2.5 55 Particulate Matter 150 6.75 150 Long-ter.m Operational Air Quality Impacts The primary source of operational emissions by vehicle travel to and from the proj ect minor amount of gaseous emissions would also gas and electricity usage. would be generated site. A relatively occur from natural Long-term air quality impacts associated with the build out of the City's General plan was analyzed in FEIR 97-01. FEIR 97-01 determined that build out of the General Plan would result in unavoidable adverse air quality impacts. A Statement of Overriding Consideration was adopted by the City of Santa Ana to address long-term unavoidable air quality impacts associated within implementation and build out of the General Plan. The proposed proj ect would be developed at a lower level of intensity permitted under the General Plan. The long-term air quality impacts associated with the proposed project would be less than the air quality emissions proj ected in General Plan Land Use Element Update Environmental Impact report FEIR 97-1. No mitigation measures are necessary. Short-ter.m construction Related Air Quality Impacts Construction operations associated with the proposed project could potentially result in short-term increases in particulate mater, and to a lesser degree increases in carbon monoxide and ozone. Peak day construction emissions for most pollutants would occur during the clearing, excavation and grading phases. The proposed project would require earthwork activity to provide for the construction of building slabs and onsite access ways. Using the South Coast Air Quality Management District CEQA Air Quality Handbook as a guideline, the threshold of potentially significant short-term air quality impacts would involve the 8 75ArJ8