Home - Department of Water Supply

Ka Wai A Kāne - Water, Our Most Precious Resource

The mission of the Department of Water Supply is to provide customers with an adequate and continuous supply of safe drinking water in a financially responsible manner.

View Video Learn More

Pay Your Bill Online

Zip+4 and 10-digit account number, as printed on your bill, is required to pay bill using portal. Click here to pay.

Customer Service

We’re here to help with new accounts, billing inquiries, or if you need any additional assistance.

Water Notices Map

For emergencies, call (808) 961-8790 – Call 24 hours a day, all districts. Broken mains, low water pressure, leaks.

Water Service Could be Impacted by Potential Power Shutoff

By / July 8, 2025

The Department of Water Supply (DWS), County of Hawai‘i, advises our customers to plan for possible impacts to their water...

Water outage notice for North Kohala customers overnight June 26-27

By / June 16, 2025

June 16, 2025NEWS RELEASEFOR IMMEDIATE RELEASEWater Outage Notice for North Kohala Customers Overnight June 26-27The Department of Water Supply (DWS),...

Mamalahoa Hwy-Parker Historical House Road watermain break

By / June 5, 2025

June 4, 2025Time: 4:15p.m.FOR IMMEDIATE RELEASEMamalahoa Hwy-Parker Historical House Road watermain breakAFFECTED AREAS: SOUTH OF INTERSECTION OF MAMALAHOA HIGHWAY AND...

There's only a limited supply of water on Earth, but the demand is increasing. Here's how you can do your part at home to conserve water, our most precious resource.