TO: LINDA REICH, CITY MANAGER
FROM: HYE JIN LEE, DIRECTOR OF PUBLIC WORKS
SUBJECT
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Public Hearing for the 2025 Urban Water Management Plan (UWMP) and Water Shortage Contingency Plan (WSCP).
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RECOMMENDATION
recommendation
1) Conduct a Public Hearing; 2) approve Resolution No. 2026-034 adopting the 2025 Urban Water Management Plan (UWMP) update and the 2025 Water Shortage Contingency Plan (WSCP) update; 3) authorize and direct the Director of Public Works or designee (on behalf of the City Manager) to submit the 2025 UWMP and the 2025 WSCP update to the California Department of Water Resources (DWR); 4) authorize and direct the Director of Public Works or designee (on behalf of the City Manager) to implement the programs described in the 2025 UWMP and the 2025 WSCP; 5) find that the adoption of the 2025 UWMP and 2025 WSCP is exempt from the California Environmental Quality Act (CEQA) pursuant to California Water Code Section 10652 and CEQA Guidelines Section 15262; and 6) authorize and direct the Director of Public Works or designee (on behalf of the City Manager) to file a Notice of Exemption with the Clerk of the San Bernardino County Supervisors.
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FISCAL IMPACT
There is no direct fiscal impact associated with the approval and adoption of the 2025 UWMP and the 2025 WSCP. An approved UWMP and WSCP are required for the City to be considered eligible for any water management grants or loans administered by the California Department of Water Resources (DWR).
CITY OF CHINO MISSION / VISION / VALUES / STRATEGIC ISSUES
The recommendation detailed above further the City’s values and strategic issues that serve as key pillars on which identified priorities, goals, and action plans are built, by fostering:
• Superior Customer Service
• Responsible Long-Range Planning
• Public Service Excellence through Internal and External Partnerships
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BACKGROUND
In 1983, the Urban Water Management Planning Act (UWMP Act) was established by Assembly Bill 797, and passage of this law recognized that water is a limited resource and that efficient water use and conservation would be actively pursued throughout the State of California. The UWMP Act requires that water suppliers providing water for municipal purposes either directly or indirectly to more than 3,000 customers, or supplying more than 3,000 acre-feet of water annually, prepare and submit an Urban Water Management Plan (UWMP) to the California Department of Water Resources (DWR) every five years.
The City of Chino is classified as an urban water supplier pursuant to the California Water Code Sections 10610 through 10657 because it serves more than 3,000 customers and supplies more than 3,000 acre-feet of water annually.
The purpose of the UWMP is to evaluate long-term water resource planning and ensure adequate and reliable water supplies are available to meet existing and future demands under a range of conditions, including normal, single dry year, and multiple dry year scenarios. The UWMP also serves as a planning tool to support water conservation, efficient water use, infrastructure planning, and coordination with regional and statewide water management efforts.
The City’s 2025 UWMP is an update to the previously adopted 2020 UWMP and includes updated population, demand, supply, and conservation information through a 2050 planning horizon.
In 2018, the State also required urban water suppliers to prepare a Water Shortage Contingency Plan (WSCP). The WSCP establishes response actions and planning measures to address potential water shortages resulting from drought, infrastructure disruptions, or other supply constraints. The City’s 2025 WSCP is included in Chapter 8 as part of the 2025 UWMP update.
The 2025 UWMP and WSCP incorporate updated water supply and planning information provided by the City’s regional water agencies, including Inland Empire Utilities Agency (IEUA), Chino Basin Desalter Authority (CDA), and Water Facilities Authority (WFA).
ISSUES/ANALYSIS
The City’s water supply portfolio includes local groundwater production from the Chino Basin, treated groundwater supplies from the Chino Basin Desalter Authority (CDA), imported water supplies delivered through the Inland Empire Utilities Agency (IEUA) and treated by the Water Facilities Authority (WFA), and recycled water supplies from IEUA. The UWMP concludes that the City is projected to maintain adequate water supplies to meet projected demands under normal, single dry year, and multiple dry year conditions through the long-term planning period.
The UWMP also documents the City’s continued progress toward water conservation and water use efficiency. Under the State’s previous Senate Bill X7-7 requirements, the City achieved its 2020 water use target of 189 gallons per capita per day (GPCD), reaching 169 GPCD in FY 2019-20. Most recently, the City’s estimated 2025 water use is approximately 143 GPCD, reflecting continued improvements in conservation and water efficiency efforts.
While the State previously utilized a single GPCD target under SB X7-7, current water use efficiency requirements are now regulated under the State’s “Making Conservation a California Way of Life” framework and Urban Water Use Objective (UWUO) methodology. This updated framework evaluates water use efficiency across multiple components, including indoor residential use, outdoor irrigation, commercial and institutional irrigation demands, and system water loss. The City’s demand projections and long-term planning efforts incorporated into the 2025 UWMP were developed using these updated State methodologies.
The 2025 WSCP establishes the City’s response framework for potential water shortage conditions and includes six standard shortage levels with corresponding response actions, demand reduction measures, communication protocols, and emergency response planning.
Pursuant to California Water Code Section 10652, the preparation and adoption of an Urban Water Management Plan is exempt from the California Environmental Quality Act (CEQA). Staff recommends approval of Resolution No. 2026-034 adopting the 2025 UWMP and 2025 WSCP and authorizing submittal of the documents to the California Department of Water Resources.
Attachments: Resolution No. 2026-034
Draft 2025 Urban Water Management Plan and 2025 Water Shortage Contingency Plan