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Groundwater Extraction Reporting

Beginning July 1, 2017, portions of high- or medium-priority basins not within the service area of a groundwater sustainability agency (GSA) are considered unmanaged. Any person that extracts groundwater from an unmanaged area must submit annual groundwater extraction reports to the State Water Board.

If locals fail to form a GSA, fail to develop an adequate sustainability plan, or fail to implement the plan adequately, the State Water Board may designate the basin probationary. Any person that extracts groundwater from a probationary basin must report to the State Water Board .

Reporting Requirements

  • Annual reports are due by December 15th of each year for extractions made during the previous water year (Oct. 1st - Sep. 30th).
  • Extraction reports must be submitted online through the State Water Board's website. The reporting website is currently under development and will be available soon.
  • Extraction reports are required for each well and must identify well owner information, well location, well capacity, monthly extraction volumes, place(s) of use, and purpose(s) of use.
  • Extraction volumes must be measured by a methodology satisfactory to the State Water Board. Details on methodologies satisfactory top the State Water Board will be available soon.
  • All reporters are required to pay annual fees. Visit our Fees page for details.

Exceptions

  • A well owner who extracts two acre-feet or less per year from a parcel for domestic purposes is a de minimis user. Domestic purposes do not include commercial activities. A well owner that extracts more than two acre-feet per year from a parcel is not a de minimis user. De minimis users in unmanaged areas are exempt from reporting. However, the State Water Board can require reporting by de minimis users in probationary basins if necessary to manage the basin. 
  • The State Water Board may choose to exclude a class or category of extractors from reporting pursuant to Water Code Section 10735.2(c).

Reporting Timeline for Water Years 2017, 2018 and 2019

Event Schedule
GSA Formation Deadline June 30, 2017
Unmanaged Area Reporting Requirements Begin July 1, 2017
2017 Water Year Ends September 30, 2017
Deadline to submit annual reports for extractions made during the 2017 Water Year. December 15, 2017
2018 Water Year Ends. September 30, 2018
Deadline to submit annual reports for extractions made during the 2018 Water Year. December 15, 2018
2019 Water Year Ends. September 30, 2019
Deadline to submit annual reports for extractions made during the 2019 Water Year. December 15, 2019

Contact Information

Email: groundwater_management@waterboards.ca.gov

Phone: (916) 322-9633

Mail: Groundwater Management Program
         State Water Resources Control Board
         1001 I Street, 13th Floor
         Sacramento, CA 95814

   Subscribe to the "Groundwater Management" email list (under the "General Interests" section).