
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.
Interconnection Project - get traffic and construction updates for the Kanan/Lindero area. This project will improve water reliability for you!
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.
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…
Read MoreCalleguas 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…
Read MoreAt 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…
Read More“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…
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.