The Chowchilla Subbasin exists within the larger San Joaquin Valley Groundwater basin, as described in the California Department of Water Resources Bulletin 118. The County of Madera is the exclusive GSA for the portion of the Chowchilla Subbasin in the unincorporated area of the County, and not otherwise covered by another public agency. Other GSAs in the Chowchilla Basin include Chowchilla Water District, Triangle T Water District and Merced County. If you’re not sure what GSA you are in for the Madera Subbasin, use this interactive map.
2023 May Revised Chowchilla GSP
Chowchilla GSP Revised May 2023 – Tracked Changes
Appendix 1.A-1.F
Appendix 2.A – 2.C.e
Appendix 2.D-2.E
Appendix 2.F
Appendix 2.G
Appendix 3.A – 3.D
Chowchilla Subbasin Revised GSP Matrix
2022 July Revised Chowchilla GSP
Chowchilla GSP Revised July 2022 Cover Letter
Chowchilla GSP Revised July 2022 Matrix Deficiencies and Revisions
Chowchilla_GSP_Edits_2022_Tracked_Changes
Figure 2 Chow GSP Update
Figure 2 Chow GSP Update
Figure 2 Chow GSP Update
Figure 3 Chow GSP Update
Figure 4 Chow GSP Update
Resolution 2022-104
Appendix 1 A to F Chow GSP Update
Appendix 2 Plan Area & Basin Setting
Appendix 3 Sustainable Management Criteria
Appendix 3 Sustainable Management Criteria
Appendix 4 Chow GSP Update
Appendix 5 & 6 Plan Implementation and References & Technical Studies
Appendix A Chow GSP Update
Appendix B Chow GSP Update
Appendix C Chow GSP Update
Appendix D Chow GSP Update
Appendix E Chow GSP Update
Technical Memorandum Chowchilla Domestic Well Inventory
2020 January Chowchilla GSP
Final GSP and Appendices:
Chowchilla GSP
List of Comments
Chapter 2 Figures
Chapter 3 Figures
Appendix 1
Appendix 2 A-B
Appendix 2 C a-d
Appendix 2 C.e
Appendix 2 D-E
Appendix 2 F.a-e
Appendix 3 A-D
Appendix 4
Appendix 5
Appendix 6 A-C
Appendix 6 D Groundwater Model Documentation
Appendix 6 D Groundwater Model Report Figures
Chowchilla GSP Annual Reports
Chowchilla Subbasin Annual Report April 2023
Chowchilla Subbasin Annual Report April 2022
Chowchilla Subbasin Annual Report April 2021; Appendices
Chowchilla Subbasin Annual Report April 2020; Appendices
Chowchilla Subbasin Meetings
2023
March 15, 2023 – Chowchilla Subbasin GSP Advisory Committee Agenda; 9/28/22 Minutes
2022
January 14, 2022 – Chowchilla Subbasin GSP Advisory Committee GSP Revisions Presentation; Agenda; 3/17/2021 Minutes
March 23, 2022 – Chowchilla Subbasin GSP Advisory Committee
Chowchilla Subbasin 2022 GSP Annual Report Presentation Chowchilla Subbasin GSP Revisions Presentation
June 23, 2022 – Chowchilla Subbasin GSP Advisory Committee Domestic Well Mitigation Program MOU Presentation
July 6, 2022 – Chowchilla Subbasin GSP Advisory Committee GSP revisions Presentation
September 13, 2022 – Chowchilla Subbasin Allocation BOS Chowchilla Subbasin Allocation Presentation
December 20, 2022 – Public Meeting Domestic Well Mitigation in Chowchilla Subbasin
2021
March 17, 2021 Chowchilla Subbasin GSP Advisory Committee Agenda; GSP Annual Report Presentation
2019
February 7, 2019 – Madera & Chowchilla Subbasin Technical Workshop Agenda; Flyer in English; Flyer in Spanish; Minutes
March 27, 2019 – Chowchilla GSP Advisory Committee GSP Preparation Presentation
May 29, 2019 – Chowchilla GSP Advisory Committee GSP Preparation Presentation
July 31, 2019 – Chowchilla GSP Advisory Committee GSP Preparation Presentation
October 23, 2019 – Chowchilla GSP Advisory Committee Chowchilla Subbasin GSP Highlights Presentation
November 20, 2019 – Chowchilla GSP Advisory Committee Public Comment Review Presentation