Department of Water Supply

Don't Waste a Drop Logo

Please get involved and visit the DWS Water Conservation Tools to learn about how you can save more water and money! 

Free fixtures are available!

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:

  1. Mayor's Proposed FY2024 Water Rates (effective 7/1/2023), Pending Approval by Council

    Water rate increases have been proposed effective 7/1/2023, pending approval by County Council. To view a copy of the proposed rates click the link below. Click here
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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:

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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
855-385-4836

Commercial Payments Residential Payment