Prohibited Water Uses

While each water year may vary in terms of how much rain we get, it's always a good idea to use water efficiently.

Below is the current list of prohibited water uses:

  • Failing to repair a leak in the customer’s water system;
  • Permitting excessive water run-off from the customer’s premises;
  • Watering outdoor landscapes in a manner that causes excessive runoff such that water flows onto adjacent property, non-irrigated areas, private and public walkways, roadways, parking lots, or structures;
  • Watering of outdoor landscapes during and up to 48 hours after measurable rainfall;
  • Watering outdoor landscapes between the hours of 9:00 a.m. and 5:00 p.m.;
  • Using a hose to wash a motor vehicle, except where the hose is fitted with a shut-off nozzle or device attached to it that causes it to cease dispensing water when not in use;
  • Washing driveways, sidewalks, parking areas, patios or other outdoor areas, unless the failure to do so would create a hazard to the health and safety of any individual or the public;
  • Using potable water for non-recirculating fountains or other non-recirculating decorative water features;
  • Irrigating ornamental turf in public street medians with potable water;
  • Irrigating landscapes outside of newly constructed homes and buildings in a manner inconsistent with regulations or other requirements established by the California Building Standards Commission and the Department of Housing and Community Development; or otherwise failing to put water received from the District to reasonable and beneficial use.


To enforce the prohibitions, below are the established fines:

  • Customers violating water-use prohibitions first receive a warning.
  •  A second violation may result in a $250 fine. 
  •  A third violation may result in a $500 fine. 
  • Further violations may result in suspension of service. 
  • In addition to the fines, a penalty may be charged for the estimated water used in violation of the prohibition.

Be part of the solution

See water waste?

Report it here.

See a leak in the street?

If you discover a ruptured or leaking water main in the street or a broken fire hydrant, please call 925-688-8095 (or 925-688-8374 after hours) without delay, so a District repair crew can be dispatched immediately.

Water Efficiency Resources

Lawn & Landscape Watering Schedule (PDF)

Request a free Water Wise House Call