14 ATTACHMENT 1 EXHIBIT C - Laserfiche WebLink

Waters hortagesoccur whenever the available water supply cannot meet the normally expected customer water use. This can be due to several reasons, such as climate change, drought, and catastrophic events. Drought, regulatory action constraints, and natural and manmade disasters may occur at any time. In 2018, the California State Legislature (Legislature) enacted two policy bills, (Senate Bill (SB) 606 (Hertzberg) and Assembly Bill (AB) 1668 (Friedman)) (2018 Water Conservation Legislation), to establish a new drought planning foundation to adapt to climate change and the resulting longer and more intense droughts in California. The 2018 Water Conservation Legislation set new requirements for water shortage contingency planning. This Water Shortage Contingency Plan (WSCP) describes the City of Pleasanton's (City) strategic plan in preparation for and responses to water shortages, including water shortage stages and associated shortage response actions. This WSCP provides a guide for the City to proactively prevent catastrophic service disruptions and has been updated to be consistent with the 2018 Water Conservation Legislation requirements. As part of this WSCP, the City's legal authorities, communication protocols, compliance and enforcement, and monitoring and reporting are described. Chapter 9.30 of the Pleasanton Municipal Code (PMC) supports the City's WSCP. The City intends for this WSCP to be dynamic so that it may assess response action effectiveness and adapt to emergencies and catastrophic events. Refinement procedures to this WSCP are provided to allow the City to modify this WSCP outside of the Urban Water Management Plan (UWMP) process. 1.0 WATER SUPPLY RELIABILITY ANALYSIS Chapters 6 and 7 of the City's 2020 UWMP present the City's water supply sources and reliability, respectively. Zone 7 Water Agency (Zone 7) is the City's exclusive water wholesaler, so the City's water supply reliability is fundamentally linked with Zone 7's water supply reliability. Findings show the City can reliably meet its projected demands through 2045 in normal and dry hydrologic conditions, including single dry years and five consecutive dry years. Statewide water supply conditions, changes in groundwater levels, and actions by other agencies may impact Zone 7's (and thus the City's) available water supply. For Zone 7, a water shortage condition occurs when the available supply of potable water cannot meet its retailers' normal water demands for human consumption, sanitation, fire protection, and other beneficial uses. Besides the City, Zone 7's retailers include the California Water Service -Livermore District (Cal Water), the City of Livermore (Livermore), and the Dublin San Ramon Services District (DSRSD). The analysis associated with this WSCP was developed in the context of Zone 7's water supply sources and reliability. In some cases, the City and Zone 7 may be able to foresee a water shortage condition, but the water shortage may also be caused by an unforeseen sudden or emergency event. In general, Zone 7's water supply conditions may be affected by the following: • SWP supply allocations and storage levels • Delta vulnerability to seismic events, changing environmental and regulatory requirements, and climate change • Salts, nutrients, or contaminants in the Main Basin City of Pleasanton N-e80-60-20-04-wP-R-e80-2020uwMP Last Revised: 05-05-21