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Triunfo Water & Sanitation District

Hours & Location

Triunfo’s Customer Service Office Hours:
Open Monday-Friday, 8:00am-12:00pm & 1:30pm-5:00pm
CLOSED for lunch – 12:00pm-1:30pm

370 N. Westlake Blvd., Ste. 100
Westlake Village, CA 91362

Sewer Service
New construction, connections, tenant improvements, easements
(805) 658-4690

Water Service
Billing questions, customer service
(800) 613-0901

General Inquiries/Board
Board of directors inquiries, meeting agendas, general inquiries
(818) 889-8996

Public Affairs
Media relations, public outreach
(805) 600-1576
[email protected]

(805) 600-1575

Emergency Service

For water or sewer emergencies, 24 hours a day, seven days a week, call (805) 389-9406.

Triunfo Water & Sanitation District participates in Ventura County’s “VC Alert” Program for rapid telephone notification of emergency situations. To sign up for the notification program, visit

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Office Closures

May 27, 2024 - Memorial Day Office Closure

July 04, 2024 - Independence Day Office Closure

September 02, 2024 - Labor Day Office Closure

November 11, 2024 - Veterans Day Office Closure

November 28 & 29, 2024 - Thanksgiving Holiday Office Closure

December 24 & 25, 2024 - Christmas Holiday Office Closure

January 01, 2025 - New Year's Day Office Closure

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