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Water Service

Potable Water Distribution System

Triunfo Water & Sanitation District supplies 2.6 million gallons of potable water daily to more than 14,000 people in the community of Oak Park. Our water distribution system consists of four storage reservoirs, five pumping stations, and 54 miles of pipeline. Triunfo purchases 100% of its water from northern California via the California State Water Project. Triunfo’s potable water service features system-wide automated water meters. Installed in 2015, these state-of-the-art devices have significantly improved meter accuracy. Additionally, customers can monitor their water use and set alarms to warn of excessive consumption.

Read more about Stage 1 Conservation |  Read more about outdoor watering | FAQS

Water utility worker using phone next to Triunfo Water & Sanitation District vehicle.

Customer Service

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

To ask about your water service, call (800) 613-0901 or email us.

For 24-hour emergency service, call (805) 389-9406.

Customer Portal Instructions

Payment Options

Need to pay your water bill?

We offer several options:

  • Make a secure online payment. See below under “Online Payment.”
  • Pay by phone 24/7 by calling (866) 793-0340. Please note new number. VISA, MasterCard, Discover, and E-check are accepted.
  • Mail a check or drop payment to Triunfo Water & Sanitation District. See details below, under “Mail or In-Person Payment.”

Online Payment*

Use the button below to make a one-time payment, schedule recurring payments, or setup/access your online account.

New Payment System is Now Online

ONLINE BILL PAY*
You can now access One-Time Payment AND your Customer Account Portal at one easy link. Please follow the steps below.

ONE-TIME PAYMENTS

  1. Click the ONLINE BILL PAY button, above.
  2. Click the PAY NOW button under “Make One Time Payment.”

CUSTOMER ACCOUNT PORTAL

  1. Click the ONLINE BILL PAY button, above.
  2. Create a new customer account by clicking “Register Now.” This will replace your previous customer account.
  3. Set up your payment methods, paperless billing preferences, and recurring payment settings.

Prefer Another Way to Pay? You can continue to pay by phone, by mail, in person, or through EZ Pay.

Need Help?
Phone: (800) 613-0901
Email: [email protected]

Payment By Phone*

To make an automated payment by telephone call toll-free (866) 793-0340. Please note new number.

*These services are provided through Paymentus Corporation, a third-party automated payment service that accepts Visa, MasterCard, Discover, and Electronic Check (eCheck). Payments made after 4:00 p.m. may not be posted to your account for up to two business days.

To use these services, you will need:

  • Your Account number from your water bill
  • Your street address number
  • Your credit/debit card number or check routing information
  • Your email address for a confirmation receipt (online payment only)

Mail or In-Person Payment

Triunfo Water & Sanitation District office:
370 N. Westlake Blvd., Suite 100
Westlake Village, CA 91362
See Office Hours Schedule

Note: We do not accept cash payments

Helpful Documents and Forms

Please use the links below to find helpful documents and forms.

Water Services Helpful Forms

Recycled Water

In addition to potable water service, Triunfo Water & Sanitation District supplies more than 1000 acre-feet of recycled water per year for irrigation of public spaces such as parks and school grounds, homeowner association landscapes, golf courses, and roadway greenbelts. The recycled water is produced at the Tapia Water Reclamation Facility and conveyed through Triunfo’s service area through 10 miles of pipeline, a pumping station, and a storage reservoir.

The Las Virgenes-Triunfo Joint Powers Authority (JPA) is making FREE recycled water available to qualified residential customers at its recycled water fill station in Calabasas. Click here for information.