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Permit Sonoma › Divisions › Engineering & Construction › Well and Septic Systems › Well and Septic Permits
Well and Septic Systems

Well & Septic Permits

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Permit Sonoma’s Well & Septic Division issues septic permits, water well permits, graywater system permits. Please contact Permit Sonoma to discuss the permitting requirements and process.

End of Extended COVID Permit Expiration Date

In order to support the difficulties the COVID-19 pandemic brought to the community, Permit Sonoma offered customers a two-year extension above and beyond the regular timelines for various ministerial applications and permits. The conditions attributing to the local emergency no longer exist and the Board of Supervisors rescinded the local emergency as of May 16, 2023. As such, the policy extending the expiration dates was sunsetted effective May 17, 2023.

This change does not affect permits that have already been extended. All applications received beginning May 17, 2023 are valid for one year, and the COVID-19 extension will not be applied.

View Affected Permit Types

Apply for Permits Electronically

Instructions on how to submit Well & Septic (VES, WEL, WSR, WVA, and WVB) type applications electronically.

Submit Electronic Applications

Water Wells

Water Well 120

  • Well permits are required to drill, abandon, or deepen wells and can only be issued to Licensed C-57 Well Drilling Contractors.
  • Well Destruction Permits