55C - WATER SUPPLY ASSESSMENT FOR MAINPLACE

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of Santa Ana 3 Regulatory Setting 3.1 Purpose Main Place Mall Transformation Project Water Supply Assessment This Water Supply Assessment (WSA) has been prepared in conjunction with the California Environmental Quality Act (CEQA) review process to evaluate the sufficiency of the water supplies available to the water supplier to meet the existing and anticipated future demands associated with the proposed associated with the proposed MainPlace Mall Transformation Project (Main Place Project, or Proposed Project) during normal, single dry and multiple dry water years over a 20-year horizon.',' If the water supply is anticipated to be insufficient, the WSA must describe measures being taken to obtain an adequate supply.' This WSA contains information from the City's 2015 UWMP, Orange County Water Reliability Study, prepared by Municipal Water District of Orange County (MWDOC) and information produced by the Metropolitan Water District (MWD) concerning the watersupplies delivered from the State Water Project. 3.2 Senate Bill 610 and 221 California Public Resources Code, Section 21151.9 and California Water Code, Sections 10631, 10657, 10910, 10911, 10912, and 10915 (herein referred to as SB 610), and California Business and Professions Code, Section 11010 and California Government Code, Sections 65867.5, 66455.3, and 66473.7 (herein referred to as SB 221) require cities and counties to obtain, use in the project approval process, and provide to the public certain critical information concerning water supply. SB 610 amended State law to improve the link between information on water supply availability and certain land use decisions made by cities and counties. It requires land use planning entities (in this case, the City of Santa Ana [City]) to request an assessment of the availability of water supplies from the water supply entity that would provide water to a project when a project is considered a "water -demand project" as defined in Section 15155, Water Supply Analysis, of the State CEQA Guidelines (14 California Code of Regulations [CCR]). In summary, a "water -demand project" is a residential development with more than 500 dwelling units (du); a shopping center or business establishment employing more than 1,000 persons or having more than 500,000 sf; a commercial office building employing more than 1,000 persons or having more than 250,000 sf; a hotel or motel or both with more than 500 rooms; an industrial, manufacturing, processing plant, or industrial park for more than 1,000 persons and occupying more than 40 acres of land or having more than 650,000 sf, a mixed -use project that includes one or more of the above; or a project that would require water equivalent to or greater than the water demand of a 500 du project. I Public Resources Code §21080 ' Water Code §10910(c)(3) 3 Water Code §10910(c)(4) Kimley»>Horn 55C-1 7 Page 19