2019-040 - Mainplace Mall Transformation

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City of Santa Ana Addendum to the MainPlace Mall Transformation Proiect Fashion Square Commercial Center Final EIR Summary of Impacts Identified in the 1983 EIR AQMP Consistency The 1983 EIR described that a project's consistency with the Air Quality Management Plan (AQMP) is determined by consistency with the local population and land use projections. The 1983 EIR determined that the Originally Approved Plan was consistent with the AQMP population forecast for the area of Orange County and the SCAG-78 land use projections in Orange County. In addition, the 1983 EIR described that the Originally Approved Plan would recycle existing urban land to a greater intensity, which was consistent with the AQMP forecast. Therefore, the 1983 EIR determined that impacts related to AQMP consistency would not occur. Construction The 1983 EIR determined that construction would produce two sources of air pollution emissions that include exhaust emissions from construction and grading equipment and dust generated as a result of earth movement and equipment traffic on local streets. The dust emissions may cause a nuisance to people and business located on adjacent properties or along roadways used by the earth -moving equipment, or to motorists who park motor vehicles in the vicinity of the site. Upon completion of construction, the dust emissions would cease. The exhaust emissions would be of short-term duration during the construction phase only. Operation The 1983 EIR describes that a majority of the operational emissions would result from vehicular emissions. The EIR determines that emissions from operation of the Originally Approved Plan is negligible (0.4 percent) when comparing it to the 1987 total emissions inventory projected for Orange County. The 1983 EIR also describes that the aggregate long-term contribution of emissions from the Originally Approved Plan to the 1987 Orange County emission inventory ranges from a negligible amount of organic gases to 0.7 percent of nitrogen oxides, depending upon the type of pollutant. The EIR determines that these levels of emissions are less than significant. It should be noted that comparing a project's emissions to county -wide emissions is no longer the current methodology or considered best practice for the analysis of air emissions. Since certification of the 1983 EIR, the South Coast Air Quality Management District (SCAQMD) adopted the CEQA Handbook (1993) that established project -level thresholds. Summary of Impacts Identified in the 1996 Addendum 111