For City Council Meeting June 23, 2026
TO: Honorable Mayor and City Council
FROM: Tanya Williams, City Manager
AUTHOR: Yazdan Emrani, P.E., Director of Public Works
Title
Request City Council/Rialto Utility Authority to: (1) Conduct a Public Hearing to Consider: Adopting the 2025 Upper Santa Ana River Integrated Regional Urban Water Management Plan Comprised of the Urban Water Management and the Water Shortage Contingency Plans; (2) Approve Resolution No. 8535 and RUA Resolution No. 26-07 to Adopt the 2025 Upper Santa Ana River Integrated Regional Urban Water Management Plan; and (3) Approve Resolution No. 8536 and RUA Resolution No. 26-08 to Adopt the Water Shortage Contingency Plan.
(ACTION)
Body
RECOMMENDATION
Staff recommends that the City Council/Rialto Utility Authority:
1) Conduct a Public Hearing to consider adopting the 2025 Upper Santa Ana River Integrated Regional Urban Water Management Plan comprised of the Urban Water Management and the Water Shortage Contingency Plans;
2) Approve a resolution and a RUA resolution to adopt the 2025 Upper Santa Ana River Integrated Regional Urban Water Management Plan; and
3) Approve a resolution and RUA resolution to adopt the Water Shortage Contingency Plan.
BACKGROUND
California Water Code Section 10621(a) requires urban water suppliers to update their Urban Water Management Plan (UWMP) at least once every five years, with the 2025 UWMP due to the California Department of Water Resources (DWR) by July 1, 2026.
The City of Rialto participated in a regional UWMP effort led by San Bernardino Valley in coordination with multiple regional water agencies. This regional approach allows participating agencies to streamline costs, share data, and ensure consistency across water supply planning efforts.
Water Systems Consulting, Inc. (WSC) was selected through a regional Request for Proposals (RFP) process to prepare the 2025 UWMP.
Since that time, staff and the consultant team have worked collaboratively to com...
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