URBAN WATER MANAGEMENT PLAN

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The O'Shaughnessy Dam (Hetch Hetchy Reservoir)

Water planning is an essential function of water suppliers, particularly during extended periods of drought and diminished supplies. Since the early 1980s, the State of California has required water purveyors that provide 3,000 or more acre feet of water per year, or have 3,000 or more service connections, to prepare an Urban Water Management Plan (UWMP) every five years, in years ending in five and zero.

UWMPs provide a framework for long term water resource planning at the local level to ensure adequate water supplies to meet current and future demands. 

More specifically, the Urban Water Management Plan:

  • Quantifies current and future water demands over a 25-year planning horizon
  • Assesses the reliability of water supplies in normal and dry years
  • Describes water shortage contingency plans
  • Describes current and planned demand management efforts
  • Documents the progress towards meeting target water use reductions as required in the Water Conservation Bill of 2009

The UWMP also includes a Water Shortage Contingency Plan (WSCP), which will guide the City’s response to water supply shortage conditions, including strategies to address six levels of water supply shortage conditions.

Review the Plans

The 2025 Urban Water Management Plan and 2025 Water Shortage Contingency Plan were adopted by the Hayward City Council on June 16, 2026 and can be accessed electronically below.

2025 Urban Water Management Plan 

2025 Water Shortage Contingency Plan

Archive

Previous versions of the Urban Water Management Plan and Water Shortage Contingency Plan can be accessed electronically using the links below.