Hawaii Department of Water Supply

09/12/2026

Department of Water Supply Update on Hurricane Lala recovery efforts as of 9/11/26.

09/10/2026

Department of Water Supply Update on Hurricane Lala recovery efforts as of 9/9/26.

09/05/2026

Department of Water Supply Update on Hurricane Lala recovery efforts as of 9/4/26.

09/03/2026

Department of Water Supply offices will be closed on Monday, September 7, 2026 in observance of Labor Day. Offices will reopen on Tuesday, September 8, 2026 at 7:45am HST.
For after hour emergencies, please call 808-961-8790.

09/03/2026

Department of Water Supply Update on Hurricane Lala recovery efforts as of 9/2/26.

09/02/2026

Department of Water Supply Update on Hurricane Lala recovery efforts as of 9/1/26.

09/01/2026

08/29/2026

Department of Water Supply Update on Hurricane Lala recovery efforts as of 8/28/26.

08/28/2026

Department of Water Supply Update on Hurricane Lala recovery efforts as of 8/27/26.

08/27/2026

August 27, 2026

Department of Water Supply’s WAIOHINU - NAALEHU (Public Water System #108) customers – Precautionary Boil Water notice REMAINS IN EFFECT

The County of Hawaii, Department of Water Supply (DWS) is reminding its customers in Naalehu, Waiohinu, Green Sands subdivision, Mark Twain subdivision, Discovery Harbor and South Point Road areas that the precautionary Boil Water Notice remains in effect. Until further notice, DWS advises water customers, in these areas, to boil all water from your taps if used for drinking and cooking purposes. DO NOT DRINK THE WATER WITHOUT BOILING IT FIRST.

Bring all water used from the tap to a rolling boil for a minimum of one (1) minute and let it cool before using. Boiled or bottled water should be used for drinking, making ice, brushing teeth, washing dishes, and food preparation until further notice. Boiling destroys bacteria and other organisms in the water.

Alternatively, customers may add between 1-8 drops of new, unscented liquid bleach with a strength of 5-6% (like Clorox) to each gallon of water for disinfection. Fill a clean container with water, add the chlorine and let the water stand for at least 30 minutes before using. The water will have a slight chlorine odor.

This precautionary boil water notice will remain in effect until additional water quality testing is completed.

If you have any questions, please contact our Engineering Division at (808) 961-8070 or the Water Quality Assurance and Control Branch at (808) 961-8670.

This is your Hawaiʻi County Department of Water Supply.

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