Hawaii County Water: Residents advised to flush taps after discoloration reports
The Department of Water Supply is investigating water issues in the Kaieie and Papa’ikou areas while testing results remain normal.
By Mei Lin ·
The Hawaii County Department of Water Supply (DWS) has acknowledged reports of discolored water in the Kaieie and Papa’ikou areas as of late October 2026. Officials stated that the discoloration does not indicate contamination. They are currently flushing the system and investigating the cause.
DWS personnel are hauling water to the Kaieie tank to maintain pressure and flow. A potable water tanker is available for public use at the intersection of Mamalahoa Highway and Mill Road, across from Kimura General store. This resource is intended for residents who cannot use tap water immediately.
Recent water quality samples from the Papa’ikou water system tested normal. However, DWS will continue to perform additional testing. The department is not yet certain of the specific cause for the visual changes in the water.
Residents with discolored tap water should run the cold water at the lowest point in their home for five to ten minutes until it runs clear. DWS advises avoiding hot water taps to prevent sediment from entering water heaters. If the water does not clear, residents should wait one to two hours and try again. Light-colored laundry should be avoided during this period to prevent staining.
If flushing does not resolve the issue, customers should report the problem so crews can flush local water mains. Reports can be made to the Water Quality Assurance and Control Branch at (808) 961-8670 or the Hilo Operations Baseyard at (808) 961-8790. The email address dws@hawaiidws.org is also active for submissions. After-hours emergencies are handled via the Hilo Operations Baseyard number.
