Sunday December 05, 2021


Groundwater Sustainability Plan


The Sustainable Groundwater Management Act (SGMA) (i.e., the term used to reference AB 1739, SB 1168 and SB 1319) provided the FCGMA with the authority to act under the new law as a Groundwater Sustainability Agency (GSA). GSAs are required to adopt a Groundwater Sustainability Plan (GSP) or alternative plan for submission to the Department of Water Resources (DWR).

A GSP specifies measures to ensure that basins operate within its sustainable yield (required for high- and medium- priority basins). The GSP is required to contain: historical data, groundwater levels, groundwater quality, subsidence, groundwater-surface water interaction, historical and projected demands and supplies, recharge areas, measurable objectives, and interm five-year milestones.

Goal: The GSP must describe the sustainability goal and it must explain how the goal will be achieved in 20 years, with a 50-year planning and implementation horizon, and monitoring data.


FCGMA Sustainable Groundwater Management Workshop - Presentation Slides

Dudek Minimum Thresholds & Measurable Objectives Hydrographs - Las Posas Valley Basin (LPVB)

Dudek Minimum Thresholds & Measurable Objectives Hydrographs - Oxnard Subbasin & Pleasant Valley Basin

Dudek Model Peer Review Report (March 2019)

Dudek Approach to Modeling Memorandum

Dudek Minimum Thresholds and Measurable Objectives Memorandum

Dudek Sustainable Yield Memorandum

FCGMA GSP Board Workshop - March 9, 2018

Presentation Slides

FCGMA GSP Board Workshop - February 26, 2018

Presentation Slides

FCGMA GSP Public Workshop 3A

Presentation Slides

FCGMA GSP Public Workshop 3B

Presentation Slides

FCGMA GSP Public Workshop 2A

Presentation Session 1

Presentation Session 2

Presentation Session 3

Oxnard Basin Groundwater Survey

Pleasant Valley Groundwater Survey

FCGMA GSP Public Workshop 2B

Presentation Session 1

Presentation Session 2

Presentation Session 3

Las Posas Valley Groundwater Survey

Public Outreach & Engagement Plan - Draft (Posted 11/14/2017)

Final Awards for Proposition 1 Released

FCGMA GSP Public Workshop Video (November 2016)

Las Posas Valley Town Hall Meeting Agenda

Las Posas Valley Town Hall Meeting Presentations

Get Involved!

 Assist with the development of the GSP by:

(1) Attending and submitting comments at the Regular and Special Board meetings.

(2) Attending and submitting comments at the Technical Advisory Group (TAG) meetings. The TAG is responsible for reviewing preliminary technical drafts before the documents are incorporated into the final draft.Their approved Charter can be viewed here .

(3) If you live, work, and/or own land within the boundaries of the Las Posas Basins (East, West, or South), participate in the Las Posas Users Group (LPUG) meetings. Their approved Charter can be viewed here Meetings are generally held at the Calleguas Muncipal Water District Boardroom.


Public Comment Process

 Options for submitting comments:

 (1) Mail to: 800 S. Victoria Ave., L#1610, Ventura, CA 93009

 (2) Submit email to This email address is being protected from spambots. You need JavaScript enabled to view it. 


Sustainable Groundwater Management Workshop: Sustainable Yield, Minimum Thresholds, and Groundwater Production

Fox Canyon GMA and Dudek, the Agency's GSP consultant, held a stakeholder workshop on Sustainable Groundwater Management, on Friday, March 15, 2019 at 4:00 p.m. following the Board special meeting.

* Minimum Threshold and Measurable Objective Hydrographs for the Las Posas Valley Basin (LPVB), Oxnard Subbasin and Pleasant Valley Basin are available now. Please click here.

* New Model Peer Review Report available here.


* Groundwater Sustainability Plans Modeling

Dudek, the Agency's GSP Consultant, has released Memos regarding the Approach to Modeling, Minimum Thresholds & Measurable Objectives, and the Sustainable Yield. They have also released a Groundwater Modeling Peer Review Report. To view the memos and report please click here.