Category Archives: Groundwater Sustainability Plan

Draft Chapters 5 and 6 Available for Public Review

On behalf of the Colusa Groundwater Authority (CGA) and Glenn Groundwater Authority (GGA), we are pleased to offer an opportunity to review initial content for several chapters of the pending Groundwater Sustainability Plan (GSP) for the Colusa Subbasin. The following chapters are now available:

  • Chapter 5 – Sustainable Management Criteria
  • Chapter 6 – Projects and Management Actions
  • Appendices 5A-5C
  • Appendices 6A-6D

This initial review period ends at midnight on August 13, 2021 so please respond in a timely manner. Please note that this review period is not a formal review for the entire GSP. That will come in approximately September.

Your input is very important to us. To ensure we have an accurate and consistent account of all comments, we have prepared a standardized comment submission approach. 

For more information and to download the draft chapters, visit the Groundwater Sustainability Plan page of this website.

Projects and Management Actions Submittals

Projects and Management Actions (PMA) – Submit your ideas

We want to hear from YOU! We are looking for ideas about potential projects and management actions (PMAs) that could be evaluated and possibly included in the Colusa Subbasin Groundwater Sustainability Plan. We have launched an online form to collect your ideas. The form is available in three formats. Click the link below that works for you:

August 14, 2020 CGA_GGA Joint TAC Meeting


The CGA-GGA Joint Technical Advisory Committee will meet August 14, 2020 1:00-4:00 p.m. This meeting will be held remotely only via Zoom. You can download the agenda and supporting materials at the links below:
Agenda | Agenda Materials

Check the Meetings page for more information.

May 8, 2020 CGA/GGA Joint TAC Meeting

As part of the ongoing Groundwater Sustainability Plan development in the Colusa Subbasin, the Colusa Groundwater Authority and Glenn Groundwater Authority Technical Advisory Committees (TAC) will hold a joint meeting on May 8, 2020 at 1:00 p.m. Click HERE to view/download the UPDATED agenda with Zoom login information. Visit the Agendas and Minutes 2020 page to view/download the meeting materials.