Oʻahu Water – Safe. Affordable. Dependable.


board of water supply fountain
An old Hawaiian proverb by Henry Ohumukini, Sr. at the fountain in front of the Board of Water Supply (BWS) building at 630 South Beretania Street in Honolulu.

About Us

The Board of Water Supply (BWS) manages Oʻahu's municipal water resources and distribution system. The BWS provides residents with safe and dependable water service at a reasonable cost. Monies collected from water sales finance its operations and projects.

As a semi-autonomous agency, the BWS is governed by a seven-member Board of Directors. Five members are appointed by the Mayor and approved by the City Council. The remaining two directors are the Director of the Hawaiʻi State Department of Transportation (DOT) and the Chief Engineer of the City Department of Facility Maintenance (DFM).

precious water

"Uwē ka lani ola ka honua"

When the heavens weep, the earth lives


Commonly Asked Topics


BWS Jobs site link


Contact Us site link


Department Financial Statements site link


Frequently Asked Questions site link


Location & Parking site link


Requests for BWS Records site link


Rules and Regulations site link


Updated: 02/26/2026

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