Department of Water Supply

COVID-19 Precautionary Measures

Water bill credit card convenience and transaction fees, as well as E-Check Fees, will no longer be waived effective February 01, 2021.
The Department of Water Supply is following recommendations to encourage social distancing for the benefit of County employees and residents and we are encouraging our customers to pay water bills by check or credit card.
Please call (808) 270-7730 and press "3", or call 855-385-4836 to pay your bill over the phone.
Poster & Video Contests
Due to COVID-19 Health Emergency the Department of Water Supply will not be holding its Water Conservation Poster Contest this year. We would like to thank our students, teachers and parents for their participation and support of our water conservation program and we look forward to restarting the contest in the future.
The department did hold the 5th Annual Source Protection Video Contest, which was open to Maui County middle and high school students. A total of 24 varied and thoughtful video entries were received from five different middle and high schools on Maui. Watch the winning videos!

Our Mission

The Department of Water Supply is an agency of the County of Maui. Our mission is to provide clean water efficiently. We provide water to approximately 36,400 services on Maui and Molokai. The water we provide meets all state and federal water quality standards. Take a look around our site to learn more. The Department needs your help! Please conserve water. For easy ways to use less water (and save money), see our tips on Water Conservation.

What's New:

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Department of Water Supply announces temporary customer service changes

On June 22, 2020, the Kalana O Maui building and One Main Plaza will be open to the public for our customers. The Department of Water Supply will still be taking precautions to ensure the health and safety of our customers as well as our employees.

DWS Divisions are not accepting any walk-in appointments at this time and encourage reaching out to our divisions via phone or email.

You can pay your water bill at our customer service window on the 5th floor. DWS Divisional contact information is available on our web site.

If you do visit us in person, we ask all visitors for their continued cooperation and to please:

- wear a face mask or other cloth face covering
- maintain a six-foot distance apart from others, and
- use hand sanitizers that have been made available

Thank you and stay safe!
  1. DATE CORRECTION: Water Shut-down Affecting Kahana - June 16-17, 2021

    WATER SHUT-DOWN AFFECTING KAHANA. On Wednesday, June 16, 2021, and Thursday, June 17, 2021, Truth Excavation and Maryl Group Construction will be performing work on the County’s water system. Read on...
  2. Department of Water Supply declares Stage 1 Water Shortage for Upcountry and West Maui

    The County of Maui Department of Water Supply will begin mandatory Stage 1 water restrictions for its domestic water system serving residents of Upcountry and West Maui beginning Tuesday, Sept. 8, 2020. Read on...
  3. Drought conditions bring temporary change to Upper Kula water system

    Ongoing drought conditions have triggered operational changes for domestic water supply delivery to about 2,000 customers on the Upper Kula water system, according to the Department of Water Supply. Read on...
  4. Voluntary water conservation requested for Upcountry and West Maui residents and businesses

    Due to lack of rainfall, the Department of Water Supply is requesting consumers in the Upcountry and West Maui areas to conserve water. Consumers are urged to use water only as needed for health and safety purposes. Read on...
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DWS  Small Meter Replacement Project 

In June 2020 the Department of Water Supply began its Small Meter Replacement project aimed at upgrading aging water meters within the County water system. The project, which is expected to last for four years, will replace an estimated 26,000 water meters that are 2” or less in size. Professional Meters, Inc. (PMI) has been hired by the department to install the meters. 

View your Water Bill Information

Customers can view their water bills, access account information and request electronic bill presentment online by creating an account here:

Telephone & Online Payment

You may pay your water bill on-line by using the links below or by telephone at the toll free number posted below. A convenience fee is charged at the time payment is processed.
* Please have available your 10 digit water account number to make a payment.

Residential Commercial Payment by Phone
Online Bill Pay Commercial Online Bill Payment Pay by Phone 855-385-4836

Commercial Payments Residential Payment