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GSP and Annual Reports

Wyandotte Creek Subbasin GSP Determination Letter

On July 27, 2023 the California Department of Water Resources (DWR) notified the Wyandotte Creek Subbasin GSP Plan Manager that the GSP has been APPROVED.  As you will see in the Determination Letter, the approval has been based on recommendations documented in the DWR Staff Report that indicate that the GSP satisfies the objectives of the Sustainable Groundwater Management Act (SGMA) and substantially complies with the GSP Regulations. In addition, the DWR Staff Report also proposes recommended corrective actions that will enhance the GSP; these actions will be considered as part of future GSP updates.


Wyandotte Creek GSP

Read the Groundwater Sustainability Plan (GSP) submitted to the Department of Water Resources (DWR) for review. 

Clicking the links on this page will take you to the Department of Water Resources Sustainable Groundwater Management Act (DWR SGMA) Portal.

The Wyandotte Creek GSP is currently being reviewed by DWR and is posted on the DWR SGMA Portal, where you can can access the GSP - click here.

If you are having issues accessing or downloading the GSP, please let us know (530) 552-3595 or email at 

Annual Reports

Clicking the links below will take you to the DWR SGMA Portal

2021 Annual Report

2022 Annual Report