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OPWS Water Conservation

Drought tolerant landscape

Water Conservation Hotline: (888) 605-7317


(Ordinance No. TSD-301)

Following are the basic, permanent, community-wide water conservation and water waste reduction measures set forth in the Triunfo Sanitation District/Oak Park Water Service Water Waste Prevention Ordinance:

  • Limits on Watering Hours - Watering or irrigation of lawn, landscape or other vegetated area with potable water is prohibited between the hours of 9:00 a.m. and 5:00 p.m. on any day except by use of a hand-held bucket or similar container, a hand-held hose equipped with a positive self-closing water shut-off device, or for very short periods for the express purpose of adjusting or repairing an irrigation system.
  • Limits on Watering Duration - Limit irrigation system watering to no more than 15 minutes per day per station. This does not apply to landscape irrigation systems that exclusively use very low-flow drip type irrigation systems when no emitter produces more than 2 gallons of water per hour and weather-based controllers or stream-rotor sprinklers that meet a 70% efficiency standard.
  • No Watering During Rain Events - Irrigation is not permitted during periods of rain nor in the 24 hours following each rain event in the Oak Park area.
  • No Excessive Water Flow or Run-Off - Watering or irrigation of any lawn, landscape or other vegetated area in a manner that causes or allows excessive water flow or run-off onto an adjoining sidewalk, driveway, street, alley, gutter or ditch mush be repaired within 5 days of observation and/or notification by the District.
  • No Washing Down Hard or Paved Surfaces - Washing down hard or paved surfaces, including but not limited to sidewalks, walkways, driveways, parking areas, tennis courts, patios or alleys is prohibited except when necessary to alleviate safety or sanitary hazards and only by use of a hand-held bucket or similar container, a low-volume, high-pressure cleaning machine equippped to recycle any water used or a low-volume, high-pressure water broom.

  • Obligation to Fix Leaks, Breaks or Malfunctions - All leaks, breaks, or other malfunctions in the water user's plumbing, distribution, or irrigation system must be remedied within 5 days of observation and/or notification by the District.

  • Re-CIrculating Water Required for Water Fountains and Decorative Water Features - Operating a water fountain or other decorative water feature that does not use recirculated potable water is prohibited.

  • Limits on Washing Vehicles - Using water to wash or clean a vehicle, including but not limited to any automobile, truck, van, bus, motorcycle, boat, or trailer whether mobilized or not is prohibited, except by use of a hand-held bucket or similar container or a hand-held hose equipped with a positive self-closing water shut-off nozzle or device. Residential car washing is permitted with use of a hand-held bucket and/or a hose equipped with a positive self-closing shut-off device.

  • Drinking Water Served Upon Request Only - Restaurants are prohbited from providing drinking water to any person unless expressly requested by that person.


Click on the links below to learn more about our water conservation program, including available cash rebates for water-efficient products and appliances. We invite you to visit this page regularly for updates on the water supply situation and TSD's ongoing conservation efforts.

Three Stages Water Supply Shortage Declaration

Water Conservation Rebate Program

Permanent Water Use Restrictions in Oak Park

TSD Ordinance No. TSD-301 - Water Conservation Policy

Tips on Saving Water

There are dozens of ways to save water in and around your home or business. Most require minimal changes in your daily routine – all can help to make a real difference in California’s water future, and save you money on your water bill. The links below provide a wealth of water-wise information. If you have questions, or would like to schedule a free Home Water Use Evaluation, please call our Water Conservation Hotline at (888) 605-7317.

Metropolitan Water District – Be Water Wise

Metropolitan Water District – SoCal Water $mart (Rebate Information)

California Urban Water Conservation Council H2OUSE Water Saver Home

United States Environmental Protection Agency – Water Sense

California WaterFix

The California WaterFix (formerly the Bay Delta Conservation Plan) is a part of California's overall water management portfolio. It is being developed as a 50-year habitat conservation plan with the goals of restoring the Sacramento-San Joaquin Delta ecosystem and securing California's water supplies. The California WaterFix would secure California's water supply by building new water delivery infrastructure and operating the system to improve the ecological health of the Delta. The California WaterFix would also restore or protect approximately 145,000 acres of habitat to address the Delta's environmental challenges.

Calleguas Municipal Water District has assembled a series of web links to videos, fact sheets, and other materials that offer extensive information about the California WaterFix. Click here to visit that page.