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4.8 – Water Draft Environmental Impact Report February 2021 14800 W. Schulte Road Logistics Center 4.8-5 The law anticipates that the monitoring of groundwater elevations required by the enacted legislation will be done by local entities. The law requires local entities to notify DWR in writing by January 1, 2011 if the local agency or party seeks to assume groundwater monitoring functions in accordance with the law. The legislation also requires DWR to prioritize groundwater basins to help identify, evaluate, and determine the need for additional groundwater level monitoring by considering available data. The Eastern San Joaquin basin has been identified as a high priority and the Tracy basin as a medium priority (DWR 2013). Urban Water Management Plans Pursuant to the California Urban Water Management Act (California Water Code Sections 10610-10656), urban water purveyors are required to prepare and update a UWMP every 5 years. UWMPs are prepared by California’s urban water suppliers to support long-term resource planning and ensure adequate water supplies. Every urban water supplier that either delivers more than 3,000 AFY of water annually or serves more than 3,000 connections are required to assess the reliability of its water sources over a 20-year period under normal-year, dry-year, and multiple-dry-year scenarios in a UWMP. UWMPs must be updated and submitted to the CDWR every five years for review and approval. Although the Project site is not located within the City of Tracy and does not involve the use of water from the City (the Project’s water would be supplied by an on-site well), the Project site is located within the City’s sphere of influence (i.e., the area outside of the City limits that the City expects to annex in the future). The City of Tracy’s UWMP includes plans for provision of water (including drought scenarios) for the City and its SOI. The UWMP uses regional population, land use plans, and projections of future growth as the basis of planning for future water supply and demonstrating compliance with state water conservation goals and policies. The City’s UWMP was last updated in 2016 and includes projections of water demand and supply through 2040. Although there are no immediate plans to connect the Project site to the City’s water system, the Project site’s general plan land use designation (Industrial) has been factored into the City of Tracy’s Urban Water Management Plan to account for long-term water demand through 2040. According to the City of Tracy UWMP, the City has the supply needed to meet current and projected water demands through 2040 during normal, historic single-dry, and historic multiple-dry year periods. Senate Bill 610 and Senate Bill 221: Water Supply Assessments SB 610 and SB 221, amended into state law effective January 1, 2002, improve the linkage between certain land- use decisions made by cities and counties and water supply availability. The statutes require detailed information regarding water availability and reliability with respect to certain developments to be included in the administrative record, to serve as the evidentiary basis for an approval action by the City or County on such projects. Under Water Code Section 10912[a], projects subject to the California Environmental Quality Act (CEQA) requiring a water supply assessment (WSA) include: residential development of more than 500 dwelling units; shopping center or business establishment employing more than 1,000 persons or having more than 500,000 square feet of floor space; commercial office building employing more than 1,000 persons or ha ving more than 250,000 square feet of floor space; hotel, motel or both, having more than 500 rooms; industrial, manufacturing, or processing plants, or industrial parks planned to house more than 1,000 persons, occupying more than 40 acres of land or having more than 650,000 square feet of floor area; mixed-use projects that include one or more of the projects specified; or a project that would demand an amount of water equivalent to or greater than the amount required by a 500 dwelling units. A fundamental source document for compliance with SB 610 is the UWMP. The UWMP can be used by the water supplier to meet the standard for SB 610. SB 221 applies to the Subdivision Map Act, conditioning a tentative