Groundwater Extraction Reporting
The State Water Board is responsible for collecting and reviewing the annual Groundwater Extraction Reports required by the Sustainable Groundwater Management Act (SGMA).
Who has to report?
Any person that extracts groundwater from an unmanaged area or a probationary basin must file a groundwater extraction report with the State Water Board. The State Intervention Fact Sheet provides details on unmanaged areas and probationary basins.
Are there exceptions?
De minimis extractors in unmanaged areas are exempt from reporting, but de minimis extractors in probationary basins may be required to report. The State Intervention Fact Sheet provides details on de minimums extractors. The State Water Board may also choose to exclude a class or category of extractions from reporting pursuant to Water Code section 10735.2(c).
Will I be notified if I have to report?
You are automatically required to file a groundwater extraction report to the State Water Board if you extract groundwater in an unmanaged area and do not meet one of the exceptions described above. The State Water Board plans to notify groundwater extractors of their reporting requirement in August of each year. If you are extracting groundwater from an unmanaged area and do not receive a notification letter from the State Water Board you are still required to file a groundwater extraction report. Click here for an interactive map that will help you find out if you are located in an unmanaged area.
What has to be reported?
Groundwater extraction reports must identify well owner information, well location, well capacity, monthly extraction volumes, place(s) of use, and purpose(s) of use. Information is reported in a User Form and a Well Form. Click here to view a sample completed user form. Click here to view a sample completed well form.
Extraction volumes must be measured by a method satisfactory to the State Water Board. Click here for the State Water Board's Draft Guide to Measuring Extraction Volumes.
How are reports filed?
Groundwater extraction reports must be filed online through the State Water Board’s Groundwater Extraction Report website. Click here to access the Groundwater Extraction Report Website.
When are reports due?
Groundwater extraction reports are due by December 15 of each year for extractions made during the previous water year (Oct. 1 – Sep. 30).
Do reporters have to pay fees?
Yes. Visit our Fees page for details.
(Page last updated 7/16/19
Water is a precious resource in California, and maintaining its quality is of utmost importance to safeguard the health of the public and the environment.