Alternative channels
Mail, text, and in-person payment instructions
Pay by text
A dedicated this detail was not publicly posted. Maui DWS publishes online/phone electronic payment, free Automatic Bill Payment from a bank, drop boxes, mail, and in-person payment, but the reviewed 2026 pages do not advertise text-to-pay enrollment.
Mail-in address
Department of Water Supply, County of Maui, 200 South High Street, Wailuku, HI 96793-2155. Mail the top portion of the bill with payment, write the account number on the check, and make checks payable to Department of Water Supply.
Counters, drop boxes, and office hours
Customers may pay at the Fiscal Office, 1888 Wili Pa Loop, Wailuku, Monday-Friday 8:00 a.m.-4:00 p.m. except state/federal holidays; County Motor Vehicle Licensing offices also accept payment. Secure 24/7 drop boxes are at 1888 Wili Pa Loop, in front of the County Building at 200 South High Street in Wailuku, and at the Service Center, 110 Alaihi Street, Kahului. The Service Center drop box accepts checks only. DWS also states that the minimum amount due must reach the County by the bill's payment deadline.