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Groundwater Information
Groundwater Levels
Click on the links below for information on groundwater levels in Colusa County:

Click on the links below to view the latest Groundwater Level Change Maps from the California Department of Water Resources, Northern Region Office:
Spring, 2016 to Spring, 2017 Groundwater Level Change Map
Spring, 2011 to Spring, 2017 Groundwater Level Change Map
Spring, 2004 to Spring, 2017 Groundwater Level Change Map

Colusa County GW Level Monitoring Network Map

Colusa County Groundwater Levels Chart

Landowner Monitoring Guide


July 15, 2016
SGMA Governance Workgroup Meeting #5
Groundwater Conditions Related to GSP Regulations - Grant Davids, Davids Engineering, Inc.

June 16, 2016
Groundwater Commission Meeting
Groundwater Conditions, Monitoring Wells - Roy Hull, DWR Northern Region Office

January 19, 2016
Davids Engineering, Inc., Colusa County Groundwater Assessment

January 11, 2016
Public Meeting on the Sustainable Groundwater Management Act 
Agenda | Presentation

May 12, 2015
Groundwater Public Outreach Meeting
Agenda-Groundwater Public Outreach Meeting 5.12.2015

Groundwater Rights, Robert E. Donlan

Spring 2015 Groundwater Conditions, Roy Hull, DWR

SGMA, Kate Williams, CA Water Foundation

Presentations from past Groundwater Commission meetings:

SGMA and Colusa County Implementation, Center for Collaborative Policy

DWR Presentation on Fall, 2015 Groundwater Conditions

DWR Presentation on Summer, 2015 GW Levels and Subsidence Studies

DWR Presentation on GW Legislation 10.2014

DWR Presentation on 2014 GW Levels

DWR Presentation on 2013 Groundwater Levels

Grant Davids Presentation on Changing Land and Water Use

Downey Brand Presentation on Groundwater Law & Hydrology

Wood Rogers Presentation on Groundwater Monitoring & Resource Management