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Tesoro Ocean Dock Terminal Tank Overfill

1076 Ocean Dock Road, Anchorage, Alaska
9:11 p.m. November 18, 2017
Spill Id
Product/ Quantity
The spilled product is JP-4 jet fuel. Tesoro reported that the fuel overflowed from the Ocean Dock Petroleum Terminal Tank 1001, which has a capacity of 105,138 barrels (4.4 million gallons). Tesoro estimates approximately 340 barrels (14,280 gallons) of Jet fuel was released into the secondary containment area. No fuel escaped the secondary containment area.
Tank level sending unit and auto gauge for Tank 1001 was sending incorrect data to the tank level display, misinforming the Tesoro operator about the actual tank level. This caused the actual level to be higher than what was being read, resulting in tank overfill.

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