Department of Water Supply – Ka Wai A Kāne – Water, Our Most Precious Resource

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.

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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 Restriction Notice Issued for Downtown Hilo Customers

By / April 21, 2026

Water Restriction Notice Issued for Downtown Hilo Customers AFFECTED AREA: DOWNTOWN HILO; SOUTH HILO, HAWAI‘I Effective immediately and until further...

DWS Water Preparedness for Storms

By / April 7, 2026

Drinking Water Preparedness The Department of Water Supply (DWS), County of Hawai‘i, urges its customers and the community to be...

Temporary Water Discoloration Notice – Waimea

By / April 7, 2026

Temporary Water Discoloration Notice – Waimea/Kamuela Area The Department of Water Supply (DWS), County of Hawai‘i, has received reports of...

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.