Urban Water Management Plans

Urban Sprawl - Natomas Housing

Urban Water Management Plans are prepared by urban water suppliers every 5 years to support long-term resource planning and water supply sustainability.

Urban Water Management Plans (UWMPs) are prepared by urban water suppliers every five years. These plans support the suppliers’ long-term resource planning to ensure that adequate water supplies are available to meet existing and future water needs. 


The requirements for UWMPs are found in two sections of California Water Code, §10610-10656 and §10608.  Every urban water supplier that either provides over 3,000 acre-feet of water annually, or serves more than 3,000 urban connections is required to submit an UWMP.


Within UWMPs, urban water suppliers must:


  • Assess the reliability of water sources over a 20-year planning time frame
  • Describe demand management measures and water shortage contingency plans
  • Report progress toward meeting a targeted 20 percent reduction in per-capita (per-person) urban water consumption by the year 2020
  • Discuss the use and planned use of recycled water

The information collected from the submitted UWMPs is useful for local, regional, and statewide water planning.

DWR’s role


DWR provides guidance for urban water suppliers by preparing an UWMP Guidebook, conducting workshops, developing tools, and providing program staff to help water suppliers prepare comprehensive and useful water management plans, implement water conservation programs, and understand the requirements in the California Water Code that regulate Urban Water Management Planning.


DWR then reviews the submitted plans to make sure they have addressed the requirements identified in the Water Code and submits a report to the Legislature summarizing the status of the plans for each five-year cycle.

Urban water suppliers submit their UWMPs to DWR through the secure WUEdata portal.  Access into this portal is restricted to water suppliers, their authorized representatives, and DWR. The WUEdata portal will be updated by Spring 2020 to accommodate 2020 data tables and plan submissions.

2020 Planning:

  • Spring 2020 - DWR hosted two workgroup meetings to discuss changes needed to update the UWMP guidebook to make it consistent with new and revised legislation. DWR has incorporated the feedback from the workgroup into a draft guidance.

  • Summer 2020 - DWR released the draft guidebook for public review. Feedback will be incorporated for the final guidebook. DWR is accepting comments on the Public Review Draft through September 21, 2020. (The draft documents posted below are also available on the DWR stakeholder SharePoint site. This site requires enrollment but joining is free and open to all.  To request access, email WUE@water.ca.gov and you will be added as a member.)

    • UWMP 2020 Guidebook - Draft

    • Draft Appendices A-B
      • Appendix A. California Water Code – Urban Water Management Planning
      • Appendix B. Changes to the California Water Code Since 2015 UWMP

    • Draft Appendices C-E
      • Appendix C. Example Approach to Demonstrate Reduced Delta Reliance
      • Appendix D. Regional Water Planning and Reporting by Regional UWMP or Regional Alliance
      • Appendix E. Standardized Data Tables

    • Draft Appendices F-H
      • Appendix F. UWMP Checklist
      • Appendix G. Glossary of Terms, Acronyms, and Abbreviations
      • Appendix H. References

    • Draft Appendices I-M
      • Appendix I. Considering Climate Change Impacts
      • Appendix J. Industrial Process Water Exclusion from Gross Water Calculations
      • Appendix K. Estimating Future Water Savings from Adopted Codes, Standards, Ordinances, or Transportation and Land-Use Plans
      • Appendix L. Water Loss Audit Regulations
      • Appendix M. Recycled Water

    • Draft Appendices N-P
      • Appendix N. Case Study on Integrated Rate Design and Communication
      • Appendix O. Reporting of Energy Intensity
      • Appendix P. Calculating Baselines and Targets

           September 16, 2020 at 12:30-2:30 PM: View the UWMP 2020 Guidebook Public Workshop and Agenda.

           UPDATE – Extended Comments deadline: Comments on the Draft Urban Water Management Plan Guidebook
           are due September 28, 2020. Please submit comment to uwmphelp@water.ca.gov.               

  • Fall 2020 - The release of the final guidebook is planned.

  • July 1, 2021 - Due date for urban water suppliers to submit their UWMPs to DWR.

The data for all submitted 2015 UWMPs is available to the public at the WUEdata Portal.

Select data for the 2010 UWMPs may be downloaded from the California Natural Resources Agency (CNRA) Open Data Portal. For more information, see the 2010 UWMP data in the CNRA Open Data Portal.  

For additional records (including those UWMPs prior to 2005), please submit requests for documents through the Public Records Request Portal.

As required by California Water Code, DWR must submit a report to the legislature describing the status of submitted UWMPs, statewide progress toward meeting the targeted 20% reduction in water use by 2020, and exemplary elements of submitted plans.  These reports summarize the status of the planning cycle UWMP submittals received at the time of the preparation of the Legislative Report and they document key highlights in the UWMPs as determined by DWR.

To request a copy of a Legislative Report not listed above, please submit requests for documents through the Public Records Request Portal.

You may download UWMPs submitted for prior years by selecting the year of interest:


 Access all other digital documents including methodologies, guidebooks, standardized table templates, drafts, red-line versions, and other associated urban water management planning documents:


For additional information, search the California Natural Resources Agency (CNRA) Open Data Portal. Search for the term “Urban Water Management Plan” or “UWMP” to locate the information of interest.


For additional documents, please submit requests through the Public Records Request Portal.