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.
Calleguas Interconnection Project
Get traffic and construction updates for the Kanan/Lindero area. This project will improve water safety and reliability for you!
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!
Board News
Next TWSD general board meeting: Mon April 22, 5:15 PM
Carl Jarecky sworn in as new board member
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…
Read MoreAfter 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,”…
Read MoreApply for cash rebates on purchases of approved water conservation appliances and devices like:
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!
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!
Access current and archived Board meeting agenda packets.
Catch up on the latest news from Triunfo Water & Sanitation District.