Selawik Water Treatment Plant Diesel Overfill

Location: Water Treatment Plant in Selawik, Alaska approximately 610 feet from the Selawik River
Time/Date: 10:00pm November 25, 2020
Spill Id: 20389933001
Product/ Quantity: The spilled product is diesel fuel that was transferred from the City of Selawik Tank #4, a 45,986-gallon aboveground tank that services the city, into an aboveground “day tank” at the Water Treatment Plant (WTP) with a capacity of approximately 4,000-gallons. The volume of the spill is under investigation at this time. The source tank is reported to still contain approximately 35,000 gallons following the release.
Cause: A diesel fuel transfer from the Consolidated Tank Farm Tank to the WTP “day tank” was left unattended on November 25, 2020 from 2:25pm until the Water Treatment Plant operator was notified the tank outside the WTP was overflowing and closed the valve at approximately 10:00pm.