14 ATTACHMENT 1 EXHIBIT A - Laserfiche WebLink

An Urban Water Management Plan (UWMP) helps water suppliers assess the availability and reliability of their water supplies and current and projected water use to help ensure reliable water service under different conditions. This water supply planning is especially critical for California currently, as climate change alters rainfall and snowfall (impacting water supply availability) and development occurs statewide (increasing the need for reliable water supplies). The Urban Water Management Planning Act (Act) requires larger water suppliers that provide water to urban users (whether directly or indirectly) to develop UWMPs every five years. UWMPs evaluate conditions for the next 20 years, so these regular updates ensure continued, long-term planning. The City of Pleasanton (City) is a water retailer (also referred to as a retail water agency), meaning it sells water directly to individual water users (e.g., residents and businesses). The City purchases most of its water supplies from Zone 7 Water Agency (Zone 7). Besides the City, Zone 7's retailers consist of the California Water Service (Cal Water), the City of Livermore (Livermore), and the Dublin San Ramon Services District (DSRSD). Because the City provides water to more than 3,000 users, it is required to prepare a UWMP. This Executive Summary serves as a Lay Description of the City's UWMP, as required by California Water Code §10630.5. CALIFORNIA WATER CODE REQUIREMENTS The California Water Code documents specific requirements for California water suppliers. The Act is included in the California Water Code and specifies the required elements of a UWMP, including discussing an agency's water system and facilities, calculating how much water its customers use (i.e., water demand) and how much it can supply, and detailing how it would respond during a drought or other water supply shortage. Also, a UWMP must describe what specific coordination steps were taken to prepare, review, and adopt the plan. The Act has been revised over the years. The Water Conservation Act of 2009 (also known as SB X7-7) required retail water agencies to establish water use targets for 2015 and 2020 that would result in statewide water savings of 20 percent by 2020. In 2020, retail water agencies are required to report on their compliance with SB X7-7. The 2012 to 2016 drought led to further revisions to the Act to improve water supply planning for long-term reliability and resilience to drought and climate change. These revisions were formalized in the 2018 Water Conservation Legislation and include: • Five Consecutive Dry -Year Water Reliability Assessment: Analyze water supply reliability for five consecutive dry years over the planning period of this UWMP (see Chapter 7). • Drought Risk Assessment: Assess water supply reliability from 2021 to 2025 assuming that the next five years are dry years (see Chapter 7). • Seismic Risk: Identify the seismic risk to the agency's water facilities and have a plan to address identified risks; the region's Local Hazard Mitigation Plan may address this requirement (see Chapter 8). • Energy Use Information: If data are available, include reporting on the amount of electricity used to obtain, treat, and distribute water (see Chapter 6). WEST YOST ES -1 City of Pleasanton 2020 Urban Water Management Plan May 2021