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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!
OFFICE CLOSURES ON ALTERNATE FRIDAYS
STARTING JULY 19, 2024: TWSD offices will be CLOSED on alternate Fridays
Customer Service Hours
Friday Closure Weeks:
Mon-Thu: 8am-12pm,
1:30-5pm
Full Weeks:
Mon-Fri: 8am-12pm,
1:30-5pm
UPCOMING BOARD MEETINGS AT TWSD
Monday, July 22: Regular TWSD Board Meeting
Monday, Aug 5: Joint Powers Authority (JPA) Board Meeting
Closed Alternate Fridays Starting July 19 Starting Friday, July 19, Triunfo will be CLOSED on alternate Fridays. Customer Service Hours on Friday closure weeks: Monday – Thursday: 8:00 am – 12:00 pm, 1:30 – 5:00 pm Customer Service Hours on full weeks: Monday – Friday:…
Read MoreTreePeople has partnered with Triunfo Water & Sanitation District and other local agencies, nurseries and tech providers to offer a plant kit for residents so that you can beautify your earth! PROGRAM AND SPECIAL OFFER! Each Native Garden Kit includes ten one-gallon native plants, a…
Read MoreAt 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 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.