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Department of Water Supply
Maui County Emergency Rental Assistance Program (MERA)
Assistance is available to qualified Maui County water account holders who have fallen behind in their bills due to the financial impacts of Covid-19. The Maui County Emergency Rental Assistance Program is now accepting applications. To learn more about this program please go to: https://www.catholiccharitieshawaii.org/maui-county-rental-utility-relief-program/
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:
- Rain Barrel Catchment Program Giveaway Opens a New Window.
- High Efficiency Toilet (HET) Replacement Programpens a New Window
- 2021 Video Contest Results
- 2021 Water Poster Calendar
- Fiscal Year 2021 Annual Report & Audit
- 2021 Water Quality Report now available
- Road Signs - Public Water Source Protection Area - What do these signs mean? Opens a New Window.
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The Small Meter Replacement Project begins Year 2 in Mid-April.
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...
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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:
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 |
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![]() 855-385-4836 |
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Helene Kau
DirectorPhone: (808) 270-7816
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Shayne Agawa P. E.
Deputy DirectorPhone: (808) 270-7834
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Water Supply, Department of
Physical Address
200 S. High St.
Kalana O Maui Bldg, 5th Fl
Wailuku, HI 96793
- What should I do once the boil water advisory is lifted in my area?
- Is it safe to do laundry during a boil water advisory?
- How long will the boil water advisory remain in effect?
- I have heard that you need to boil water longer than 1 minute, is that true?
- How do I care for my garden and houseplants during a boil water advisory?
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- East Maui Watershed Partnership works to protect 100,000 acres. This land area is the source of drinking water for Upcountry.
- West Maui Mountains Watershed Partnership works to protect 50,000 acres. This land area is the source of drinking water for Central and South Maui.
- The Leeward Haleakala Watershed Restoration Partnership works to protect 43, 175 acres.Volunteers have helped plant 120,000 native seedlings within the watershed to help restore hydrologic functions.
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