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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.  

Lead and Copper Rule Revision
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Water outage notice for North Kohala customers overnight June 26-27

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),...
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Notice of water shutoff Pāpa‘aloa, North Hilo June 24, 2025

Notice of water shutoff Pāpa‘aloa, North Hilo June 24, 2025

By / June 13, 2025
AFFECTED AREA: CUSTOMERS ALONG OLD MĀMALAHOA HIGHWAY BETWEEN HULA‘ANA PLACE AND KAPEHU CAMP, INCLUDING LANIKAI PLACE, PĀPA‘ALOA SENIOR HOUSING FACILITY,...
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Mamalahoa Hwy-Parker Historical House Road watermain break

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...
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WATER CONSERVATION TIPS

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.
faucet

General Indoor

dishes

Kitchen

showerhead

Bathroom

washing machine

Laundry

dog drinking water

General Outdoor

garden hose

Lawn

watering plants

Landscape

pool water

Pool

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The Department of Water Supply is a semi-autonomous agency of the County of Hawai‘i that is governed by the Water Board. Founded in 1949, its primary function is to provide domestic water service through its 23 water systems scattered throughout the Big Island. The Department continually strives to provide safe, dependable, high quality, potable water at a reasonable cost.