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Hana Japan Restaurant Project Initial Study/Mitigated Negative Declaration 55 May 2025 • The irrigated acreage overlying the basin or subbasin; • The degree to which persons overlying the basin or subbasin rely on groundwater as their primary source of water; • Any documented impacts on the groundwater within the basin or subbasin, including overdraft, subsidence, saline intrusion, and other water quality degradation; and • Any other information determined to be relevant by the department, including adverse impacts on local habitat and local streamflows. Each basin’s priority determines which provisions of California Statewide Groundwater Elevation Monitoring (CASGEM) and SGMA apply. SGMA requires Medium and High priority basins to develop groundwater sustainability agencies (GSAs), develop groundwater sustainability plans (GSPs), and sustainably manage groundwater over time. The Livermore Valley Groundwater Basin is considered Medium Priority by the DWR 33 and is addressed by the Zone 7 Groundwater Management Plan (2005 GMP).34 The DWR has not identified the Basin as either in overdraft or expected to be in overdraft.35 Given that the proposed project would be consistent with the site’s current General Plan land use designations, the project would not result in increased use of groundwater supplies beyond what has been generally anticipated for the site by the City and accounted for in the Urban Water Management Plan (UWMP). Pursuant the 2015 UWMP, water supplies are projected to meet expected demand for normal year, single-dry year, and multiple-dry year scenarios through 2040. Based on the above, the proposed project would not substantially decrease groundwater supplies or interfere substantially with groundwater recharge such that the project may impede sustainable groundwater management of the Livermore Valley Groundwater Basin. In addition, the project would not conflict with or obstruct implementation of a water quality control plan or the 2005 GMP. Thus, a less-than-significant impact would occur. civ. According to the Federal Emergency Management Agency (FEMA) Flood Insurance Rate Map number 06001C0308G, the project site is located within an Area of Minimal Flood Hazard (Zone X).36 The site is not classified as a Special Flood Hazard Area or otherwise located within a 100-year or 500-year floodplain. Therefore, development of the proposed project would not impede or redirect flood flows and no impact would result. d. As discussed under question ‘civ’ above, the project site is not located within a flood hazard zone. Thus, the proposed project would not be subject to substantial flooding risks. Tsunamis are defined as sea waves created by undersea fault movement, whereas a seiche is a long-wavelength, large-scale wave action set up in a closed body of water such as a lake or reservoir. Due to the project site’s substantial distance from the coast, the proposed project would not be exposed to flooding risks associated with tsunamis. Seiches do not pose a risk to the proposed project, as the project site is not located adjacent to any closed body of water. Therefore, the proposed project would not pose a 33 Zone 7 Water Agency. Groundwater Management Plan for Livermore-Amador Valley Groundwater Basin. September 2005. 34 Department of Water Resources. Sustainable Groundwater Management Act 2018 Basin Prioritization [Table A- 1]. January 2019. 35 Zone 7 Water Agency. 2015 Urban Water Management Plan [pg. 6-7]. March 31, 2016. 36 Federal Emergency Management Agency. Flood Insurance Rate Map 06001C0308G. Effective August 3, 2009.