DWR Opens 45-Day Public Comment Period for Draft California’s Groundwater Update 2025

 

DWR announced the opening of the 45-day public comment period on the public draft of the California's Groundwater: Bulletin 118 - Update 2025 (CalGW Update 2025). This legislatively-mandated report provides a comprehensive assessment of statewide groundwater conditions and incorporates information from GSA annual reports, California’s Groundwater Live, and other groundwater initiatives since 2020. The public comment period closes on December 5, 2025.

All comments will be reviewed to provide valuable feedback to DWR to improve the analysis, reporting and access to California’s groundwater information.

The final version of the CalGW Update 2025 document is expected to be released in Spring 2026.

Comments can be submitted on the draft CalGW Update 2025 document by one of the following methods:

1. Electronic Mail

Public comments can be submitted via email to calgw@water.ca.gov. All electronic files should be PDF or Microsoft Word compatible.

2. Public Meeting

Interested parties are strongly encouraged to submit comments and attend a virtual webinar on November 4, 2025 from noon to 1:30 p.m. This meeting will include an overview of the draft document and serve as a venue to ask questions and provide public comment. Please register for the public webinar, here.

 

We also encourage you to subscribe to the Sustainable Groundwater Management Office’s mailing list for related announcements.

 

Follow the steps below to subscribe to the Department’s email subscription Topics of interest to you:

1. Navigate to the California DWR Email Subscriptions public website, full list

2. Enter your email address in the ‘Email’ field (required)

3. Click the box for ‘DWR Sustainable Groundwater Management Program’ and other Topics you are interested in

4. Check the box to consent to our data privacy policy (required)

5. Click the ‘Next’ button and you are subscribed

 

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