Earlier editions: 2026-09
Chapter 25B — WATER WELL CONSTRUCTION STANDARDS
Sonoma County Municipal Code Art. V Well Reports
Sonoma County Municipal Code · 2026-10 edition · updated 2026-10-04 · Sonoma County
Cite as: Sonoma County Municipal Code Article V · Text as of 2026-10-04
Sec. 25B-9. - Well reports.¶
(a) Every person who digs, bores or drills a well, or abandons or destroys such a well or who deepens or reperforates any such well shall file with the enforcing agency a report of completion of such well within thirty (30) days after its construction, alteration, or destruction has been completed.
(b) The report shall be made in compliance with California Water Code Section 13751, on forms furnished by the department of water resources or the enforcing agency, and shall contain such information as the department of water resources or the enforcing agency shall require, including but not limited to:
(1) Description of the well site including GPS or latitude/longitude coordinates to allow the enforcing agency to locate and identify the well;
(2) Detailed log of the well;
(3) Description of the type of construction;
(4) Details of perforation;
(5) Methods used for sealing off surface or contaminated waters;
(6) Methods used for preventing contaminated waters of one (1) aquifer from mixing with the waters of another aquifer, if applicable;
(7) Signature of the well driller; and,
(8) In the case of geothermal heat exchange wells, the report shall also contain the following information:
(i) A description of the site that is sufficiently exact to permit the location and identification of the site and number of geothermal heat exchange wells on the same lot.
(ii) A description of the borehole diameter and depth and the type of geoexchange system installed.
(c) Inspection of reports.
(1) Disclosure of well reports will be made pursuant to California Water Code Section 13752.
(Ord. No. 6422, § I(Exh. A), 4-18-2023)
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