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 35,700 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.
The Engineering Division will be closed for training on Tuesday morning, March 13, 2018. The office will open at 12:30 pm.
The Fiscal Division will be closed for training on Monday morning, March 19, 2018, including the bill payment windows at the county building 2nd and 5th floors. The offices will open at 12:30 pm.
Visit our new Customer Service Portal by clicking the link below:
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.