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HomeWater CodeDiv. 7Ch. 7Art. 6§ 13540 Domestic Water Well Protection

§ 13540 Domestic Water Well Protection

Water Code·California
AI Summary·Official Text·Key Terms·Related Statutes·References
AI SummaryVerified

§ 13540 Domestic Water Well Protection

Key Takeaways

  • •You can't dig or use a well that goes into underground water layers used for drinking water.
  • •If experts say it's safe, you can put cleaned-up water back into the ground using a well, but only after a public meeting and strict checks.
  • •The rules don't stop local areas from making even stricter rules to protect drinking water.

Example

A town wants to put treated wastewater back into the ground to refill their drinking water supply.

The town must first get permission from water and health experts. They have to prove the water is clean enough and won’t make people sick. If they get the okay, they can use a well to put the water back underground.

AI-generated — May contain errors. Not legal advice. Always verify source.

Official Source
View on CA.gov

§ 13540 Domestic Water Well Protection

(a) A person shall not construct, maintain, or use any waste well extending to or into a subterranean water-bearing stratum that is used or intended to be used as, or is suitable for, a source of water supply for domestic purposes. (b) (1) Notwithstanding subdivision (a), when a regional board finds that water quality considerations do not preclude controlled recharge of the stratum by direct injection, and when the State Department of Public Health, following a public hearing, finds the proposed recharge will not degrade the quality of water in the receiving aquifer as a source of water supply for domestic purposes, recycled water may be injected by a well into the stratum. The State Department of Public Health may make and enforce any regulations pertaining to this subdivision as it deems proper. (2) This section shall not be construed to do either or both of the following: (A) Affect the authority of the state board or regional boards to prescribe and enforce requirements for the discharge. (B) Preempt the exercise by a water district of its existing ordinance authority to impose or implement stricter standards for protecting groundwater quality in the receiving aquifer. (c) If the State Department of Public Health makes the findings provided for in subdivision (b), the department shall consider the state board’s Statement of Policy with Respect to Maintaining High Quality of Waters in California, as set forth in Resolution 68-16, dated October 28, 1968, and shall also consider current and potential future public health consequences of the controlled recharge. (Amended by Stats. 2010, Ch. 288, Sec. 44. (SB 1169) Effective January 1, 2011.)

Last verified: January 23, 2026

Key Terms

waste wellsubterranean water-bearing stratumdomestic purposescontrolled rechargerecycled waterState Department of Public Healthregional boardStatement of Policy with Respect to

Related Statutes

  • § 13522 Recycled Water Contamination Abatement
  • § 13522.5 Recycled Water Use Reporting
  • § 13524 Recycled Water Use Requirements
  • § 13541 Waste Well Definition
  • § 13552.4 Recycled Water For Landscaping

References

  • Official text at leginfo.legislature.ca.gov
  • California Legislature. Water Code. Section 13540.
View Official Source