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.
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.
* Please have available your 10 digit water account number to make a payment.
Effective July 1, 2016, the Department of Water Supply is offering additional fixture unit capacity for single-family dwellings and single-family accessory dwellings for meters one inch or smaller. Read on...
As of July 1, water service rates will increase approximately five percent for general and agricultural consumers, the 5/8-inch meter Water System Development Fee will increase to $12,060, and the sewer user fee will increase an average of 5%. Read on...