Glenn Groundwater Authority

The Glenn Groundwater Authority was created by forming a Joint Exercise of Powers Agreement, signed by nine local agencies, with the purposes of being a Groundwater Sustainability Agency for the Glenn County portion of the Colusa Subbasin. A tenth member joined the Glenn Groundwater Authority October 14, 2019.

Glenn Groundwater Authority Member Agencies include:

  • City of Orland
  • City of Willows
  • County of Glenn
  • Glenn-Colusa Irrigation District
  • Glide Water District
  • Kanawha Water District
  • Monroeville Water District
  • Orland-Artois Water District
  • Princeton-Codora-Glenn Irrigation District
  • Provident Irrigation District


The notice declaring the Glenn Groundwater Authority’s decision to become a Groundwater Sustainability Agency and its intent to manage groundwater within the Glenn County portion of the Colusa Subbasin submitted to the Department of Water Resources (DWR) can be found on the DWR SGMA Portal at:

A copy of the Joint Powers Agreement (JPA) and resolutions from each member agency can also be found on the DWR SGMA Portal.


Board Meetings are open to the public.  See the GGA Meetings page for more information. 

Board of Directors


For questions, comments, or to sign up to be on the interested parties list, please contact the GGA Program Manager:

Lisa Hunter

225 N Tehama St., Willows, CA 95988

(530) 934-6540


Social Media for Colusa Subbasin SGMA




Drought Resources

A little mulch goes a long way

Click the image above for additional tips, information, and drought resources.