The Department of Water Supply is an agency of the County of Maui. Our mission is to provideclean 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.
Year two of the Department of Water Supply's Small Meter Replacement project will begin mid-April 2022 and will encompass the Kahului and the Lahiana to Napili service areas. Work will begin in Kahului and is scheduled to be completed by September 2022. Read on...
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.
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.