Triunfo Water & Sanitation District

We provide sewage collection and treatment services, supply potable water, and treat and sell recycled water. We serve more than 30,000 people in east Ventura County, including Oak Park, Lake Sherwood, Bell Canyon, and the Westlake Village and North Ranch portions of Thousand Oaks.

What's the Latest

Interconnection Project - get traffic and construction updates for the Kanan/Lindero area. This project will improve water reliability for you!

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FREE Water Smart Speaker Series - Fire-smart landscaping, planning your California garden and more. Next class is July 15.

Next Board Meeting: Monday, June 26, 5:15pm at the Triunfo administrative building in Westlake Village.

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Urban Water Management Plan

Triunfo's Urban Water Management Plan provides details on the District's sources of supply, water use history and targets, and drought response measures.

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An innovative solution to regulatory challenges that will help ensure a reliable long-term local water supply.

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FACILITY TOURS

Water Customer Assistance

Eligible customers can receive a $15 discount on their monthly water bill.

POTABLE WATER

And eligible customers can receive a $180 discount on their annual wastewater service.

WASTEWATER

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Water News

Stay in the loop with news, events, conservation tips and more!

Triunfo News

Free Drip Irrigation Workshop – Saturday, May 20 at Mae Boyar Park

May 11, 2023

Triunfo Water & Sanitation District (TWSD) is sponsoring a hands-on drip irrigation workshop Saturday, May 20 from 9:00 a.m. to 11:00 a.m. at Mae Boyar Park (130 Kanan Road in Oak Park). The class is free and open to the public. Attendance is limited to…

Calleguas-Las Virgenes Interconnection

May 2, 2023

Calleguas Municipal Water District (Calleguas) provides water supplies to local water agencies that serve the communities of North Ranch and Oak Park. Calleguas and Las Virgenes Municipal Water District (LVMWD) each own and operate potable water systems largely dependent on imported water supply. The Calleguas…

Triunfo Board Rescinds Stage One Water Restrictions

April 25, 2023

At its April 24, 2023 meeting, the Triunfo Water & Sanitation District (TWSD) board of directors voted to rescind the Stage 1 Water Shortage condition, which has been in place since August 2021. Current conditions allow for less restricted use. However, Triunfo’s permanent water restrictions remain in…

The Acorn interviews Triunfo for “Branching Out” podcast

April 4, 2023

“Drought or no drought? With near-record rainfall this year, what’s the real story? On Branching Out, the experts talk about water, and where the next few months are headed.” In March 2023, John Loesing, Managing Editor at the Acorn, spoke to staff of Triunfo Water…

SAVE WATER, SAVE MONEY!

Apply for cash rebates on purchases of approved water conservation appliances and devices like:

- Toilets
- Washers
- Irrigation Controllers
- Soil Sensors
- Rain Barrels and more!

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Become a pro at water conservation with our

AUTOMATED METER SYSTEM

- Our Automated Meter System shows your water use in present time.

- Gives you full data and analytics to track and analyze your water usage.

- Set up notification limits on your water usage.

- Be notified if you might have a leak.

My Water Account

Bill Pay

Triunfo Water & Sanitation District offers you a variety of convenient ways to pay your water bill by mail, phone, or online.

PAY NOW

Water Usage

Manage your water usage with up-to-date information on consumption history by month, day, or hour.

CUSTOMER PORTAL

Water Rates

Fees for potable and recycled water include a monthly service charge (based on meter size) and quantity rates.

POTABLE RATES

RECYCLED RATES

Be Water Wise!

Triunfo Water & Sanitation District is committed to the wise use of water. This includes promoting conservation among our customers through usage guidelines, valuable incentives, and public education. Find out how you can help support your community by conserving water!

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