What Happens If You Waste Water in California?

The penalty for wasting water in California can reach $10,000 for a single violation, with an added $500 for each day the problem continues more than 30 days after your water agency notifies you. For residential customers, a first offense is capped at $1,000 unless the agency can show you knew the rule, broke it on purpose, and wasted a substantial amount. In rare cases, water waste is also a misdemeanor punishable by up to 30 days in county jail and a $1,000 fine.

Who Actually Issues the Fine

California enforces water conservation through local water suppliers rather than the state. The State Water Resources Control Board sets efficiency targets for urban retail water suppliers, but it does not fine individual households or businesses. Your local water district or municipal utility adopts a conservation ordinance under California Water Code Section 376, and that local ordinance is what you can actually be cited for violating.¹

The penalty amounts are set by state law under Water Code Section 377, so even though the ordinance is local, the dollar figures look similar from one agency to another.² During a declared local water shortage, your supplier can impose stricter rules on top of the baseline, and those stricter rules carry the same penalty authority.

What Counts as Wasting Water

The practices nearly every California water supplier prohibits through its local ordinance trace back to the same list the state originally enforced during the drought emergency that expired in December 2023.³ The common prohibited practices include:

Landscape watering that runs off onto sidewalks, streets, or neighboring properties.
Using potable water to wash driveways, sidewalks, patios, or other hard surfaces, unless required for health or safety.
Washing a vehicle with a hose that has no automatic shut-off nozzle.
Irrigating outdoor landscapes during or within 48 hours after measurable rainfall.
Restaurants serving drinking water to customers who did not request it.
Hotels and motels failing to give guests the option of declining daily laundering of towels and linens.

When your local supplier declares a shortage, more restrictions typically layer on top: fixed watering days, monthly usage caps, or outright bans on certain outdoor uses. Violating any of those shortage-stage rules exposes you to the same penalty structure as violating the baseline prohibitions.

Civil Penalty Amounts

The maximum civil penalty under state law is $10,000 for a single violation of a local water conservation ordinance or a State Water Board regulation.² That ceiling is rarely the actual penalty for a first offense, especially at a home.

For residential water users, state law caps a first violation at $1,000. The cap only comes off when the agency or court finds all three of the following: you had actual notice of the rule, you acted intentionally, and the amount of water involved was substantial.² A homeowner cited because a sprinkler head broke and sent water into the street is in a very different position from a homeowner who ignored repeated notices to stop filling an unpermitted pool.

When setting the dollar amount, the law directs the court or agency to consider the nature and persistence of the violation, the harm caused, how long it lasted, and whether the water user took corrective steps. That last factor carries real weight. Fixing the leak, replacing the nozzle, or shutting off the broken valve as soon as you get notice is the single most effective way to keep the number low.

The 30-Day Clock and Daily Penalties

Letting a violation continue is where the real financial risk begins. If the problem persists more than 30 days after your water supplier formally notifies you of it, the agency can seek the full $10,000 base penalty plus an additional $500 for each day the violation continues past that 31st day.²

The math gets ugly fast. A broken irrigation system that keeps flooding the sidewalk for two months after the first notice can produce the base penalty plus roughly $15,000 in daily penalties on top. The 30-day window is effectively your grace period. Use it.

Before any administrative civil penalty becomes final, the public entity must follow the procedure in Water Code Section 377.5: issue a formal complaint, give at least 30 days’ notice, and provide an opportunity for a hearing.⁴ A penalty does not simply appear on your bill without warning.

Money collected under Section 377 must be used by the public entity solely for water conservation purposes.²

Criminal Exposure

Violating a water conservation program adopted by your local supplier is a misdemeanor under state law. A conviction can carry up to 30 days in county jail, a fine of up to $1,000, or both.²

Criminal prosecution for water waste is uncommon. Most enforcement stays on the civil side with citations and administrative penalties. The misdemeanor provision exists for flagrant or repeat offenders and is in the toolkit if an agency decides to use it.

Extra Penalties During a Drought Emergency

When the State Water Board adopts emergency drought regulations under Water Code Section 1058.5, violations of those statewide rules are infractions punishable by a fine of up to $500 for each day the violation occurs. That amount stacks on top of any penalty your local agency separately imposes under its own ordinance.⁵

Statewide emergency conservation regulations are not currently in effect; the most recent set expired in December 2023.³ If California enters another drought emergency, these rules can return quickly, and the per-day infraction fines come with them.

If You Get a Citation

You have the right to contest a water waste citation. Under Section 377, the public entity must issue a complaint at least 30 days before any hearing, and you are entitled to that hearing before any civil liability becomes final.²

Many local agencies also run their own citation appeal process with shorter deadlines for requesting a hearing, often around 10 to 15 calendar days from when the citation is served. Missing a local deadline can waive your right to challenge the citation, so read any notice from your water supplier the day it arrives and call the number on it to confirm what the appeal window actually is in your district. In the meantime, fix whatever triggered the citation. Documented corrective action is one of the specific factors the hearing officer must weigh when deciding how large the penalty should be.

1
California Legislative Information. California Code WAT 376 – Water Conservation Programs
2
California Legislative Information. California Code WAT 377 – Water Conservation Programs Violations and Penalties
3
California State Water Resources Control Board. Water Conservation Emergency Regulations
4
California Legislative Information. California Code WAT 377.5 – Issuance of Complaint or Citation
5
California Legislative Information. California Code WAT 1058.5 – Emergency Regulations