State boards · The Environmental Notice · Aug. 23, 2026

Fuel Storage Tank Improvements Wahiawā Wastewater Treatment Plant – Final EA (FONSI)

Environmental review · Oʻahu · Wahiawā

Tax map key, as printed

(1) 7-3-007:002

Agency, as printed

City and County of Honolulu, Department of Environmental Services

Permits, as printed

None

Status, as printed

Finding of No Significant Impact (FONSI) determination

Area

Wahiawā-Whitmore Village (placed by the tax map key it prints)

The state's document

The Environmental Notice, Aug. 23, 2026 (PDF)

The Wahiawā Wastewater Treatment Plant has an underground storage tank that supplies fuel to a standby generator. The generator automatically activates during a power outage and provides electricity for the treatment plant, including the influent pumps, support equipment, HVAC, and lighting. To comply with current fuel storage regulations and strengthen environmental protection, the City Department of Environmental Services, Division of Wastewater Engineering and Construction, is proposing to replace the existing 6,000-gallon underground fuel storage tank with a new 6,000-gallon aboveground tank. The project also includes replacing the underground fuel piping, fuel monitoring panel, associated sensors, and connecting the new fuel monitoring panel to the supervisory control and data acquisition (SCADA) system.

Basis. Read from the issue's PDF by script (pipeline/fetch_environmental_notice.py), published by the State of Hawaiʻi Office of Planning and Sustainable Development; first on the record Sept. 19, 2026. Wording is the notice's; contact names, telephone numbers and email addresses are not carried. Corrections: the corrections log.