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Integrated Regional Water Management Plan (IRWMP)


IRWMP 2022 Annual Update

2022 Spring Update


In 2010-2011, the WRA Technical Committee reviewed the 200+ projects listed in the adopted 2007 Yolo County IRWMP and compiled an updated project status from the lead agencies responsible for coordinating each Integrated Action. Two lists were distilled from the review process: a list of projects completed as of June 2011 and a list of priority projects expected to be completed by 2020. The projects that are still in a conceptual phase remain on the master IRWMP list of actions. Please click the appropriate link below to access the updated 2011 IRWMP lists.

Yolo IRWMP Project Accomplishments List June 2011

Yolo IRWMP Project Priority List with 2020 Implementation

Yolo IRWMP Integrated Actions (master file) Updated 3-3-11



The Water Resources Association of Yolo County (WRA) completed the Yolo County Integrated Regional Water Management Plan (IRWMP) in April 2007 after WRA Technical Committee and public review.  All nine WRA member agencies individually adopted the IRWMP in June and July of 2007.  The WRA Board of Directors adopted the IRWMP on July 23, 2007. 

The IRWMP is one of the major undertakings by the WRA Technical Committee to identify water-related issues and potential solutions in Yolo County. The WRA Technical Committee is composed of senior staff of the participating WRA member agencies. The IRWMP will also act as the foundation to pursue grant funding and will identify projects and programs it would like to see funded under Proposition 50 implementation funds. The IRWMP will be closely coordinated with the Yolo County General Plan process that has a planning horizon of 2025.

A series of community workshops were conducted to inform interested parties of the IRWMP, answer questions and solicit input on the IRWMP in general. See the Public Outreach section for more information on how public input was solicited throughout the IRWMP development.

The WRA has a goal of improving water resource management in five areas:

  1. Water supply and drought preparedness
  2. Water quality
  3. Flood management and storm drainage
  4. Recreation
  5. Riparian and aquatic ecosystem enhancement

The WRA recognizes that the IRWMP is a living document along with the process for implementation.  The IRWMP will periodically be updated - approximately every 5-10 years as needed.  A policy is under development by which amendments to the plan will be considered, adopted and documented over the course of time as information, conditions, and/or priorities change and dictate.

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