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 buildings and impacts related to the need for communication systems would be less than significant. No new impact would occur. Water The proposed Project would redevelop the Project site, which is currently served by the City's water infrastructure. The existing water infrastructure that serves the Project area: • A 16-inch water line in Main Street, terminating at the north leg of Main Place Drive • A 16-inch water line in the south leg of Main Place Drive from Main Street to the southwest mall entry drive • A 12-inch water line in the north leg of Main Place Drive from Main Street to the north leg of the on -site private ring road. • A 16-inch water line under 1-5, connecting to the Main Place Drive main at the southwest corner of the Project site A 16-inch water line in southwest private drive entry from Main Place Drive to the on -site private ring road. A 16-inch water line in south private drive entry (the Broadway extension) from Main Place Drive to the on -site private ring road. A 12-inch water line in the on -site ring road, looping around the Project site. In addition, the City also has approximately 15 fire hydrants near the Project site and approximately 24 water meters serving the site. The proposed Project would install new water infrastructure on the Project site that would connect to the existing offsite water lines. The new onsite water system would convey water supplies to the proposed buildings and landscaping through plumbing/landscaping fixtures that are compliant with the CalGreen Plumbing Code for efficient use of water. The existing offsite infrastructure has the capacity to provide the increased water supplies needed to serve the proposed Project, and no extensions or expansions to the water pipelines that convey water to the site would be required. The construction activities related to the onsite water infrastructure is similar to that which was evaluated in the 1983 EIR, and similarly, impacts related to water infrastructure would be less than significant. No new impact would occur. A Water Supply Assessment (WSA) was prepared for the Specific Plan, included as Appendix H, which summarized the anticipated water demands and identified supplies set forth in the City's 2015 Urban Water Management Plan (UWMP). As shown in Table PSU-1, the WSA identifies that buildout of the proposed Project would result in a water demand of 552,000 gallons per day. EEO