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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

Calleguas Interconnection Project

Get traffic and construction updates for the Kanan/Lindero area. This project will improve water safety and reliability for you!

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STUDENT ART CONTEST - DEADLINE MAY 20

Students K-12 who live in Oak Park are invited to submit original, water-themed artwork to this year's calendar contest! Prizes!

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Board News

Next TWSD general board meeting: Mon April 22, 5:15 PM

Carl Jarecky sworn in as new board member

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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.

Customer Assistance

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

POTABLE WATER

Wastewater customers can receive a $180 discount on their annual wastewater service. Open to eligible property owners. Deadline is May 1, 2024.

WASTEWATER

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Water News

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Triunfo News

Triunfo Water & Sanitation District Fills Board Vacancy

March 20, 2024

At a March 18 meeting, the Triunfo Water & Sanitation District (TWSD) board of directors selected Carl Jarecky to fill a board vacancy created when Director Janna Orkney resigned on January 29. Jarecky will serve for the remainder of the current term and will run…

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TWSD Board Vacancy – Notice & Application – 2024

February 6, 2024
The deadline for application has passed.  The Triunfo Water & Sanitation District board of directors will be holding a special board meeting Monday, March 18 at 5:15pm. The board will convene to interview, select and appoint a community member to fill the board vacancy. MORE... Read More

Triunfo Water & Sanitation District 2023 Year in Review

January 30, 2024
As we close our year, 2023 Chair of the Triunfo Water & Sanitation District Jane Nye shares her thoughts. It is a pleasure serving the 30,000-plus people who live, work, and play in Triunfo Water & Sanitation District’s (TWSD) service area. It’s our goal to... Read More

Board Member Janna Orkney Steps Down

January 30, 2024

After 17 years as a member of the Triunfo Water and Sanitation District (TWSD) Board of Directors and its current board chair, Janna Orkney announced she is stepping down effective January 29, 2024. “TWSD is more efficient, financially sound, and forward-thinking because of Janna’s leadership,”…

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Conservation Rebates

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!

Learn More
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Become a pro at water conservation with our

WATER SERVICE CUSTOMER PORTAL

    • Triunfo's customer portal 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.
SIGN UP TODAY!

My Water Account

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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
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Water Usage

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

CUSTOMER PORTAL
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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!

LEARN MORE!

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!

LEARN MORE!

Quick Links

Board Meeting Packets

Access current and archived Board meeting agenda packets.

In the News

Catch up on the latest news from Triunfo Water & Sanitation District.

2020 Urban Water Management Plan (UWMP)

Review the District's 2020 UWMP adopted October 25, 2021.

Event Calendar