Duwamish Waterway Jet Fuel Spill - Photo Gallery

Last Updated 6/16/2011

Duwamish Waterway Jet Fuel Spill – Boeing Fuel Terminal Area   Duwamish Waterway Jet Fuel Spill – General Vicinity

The spill occurred May 28, 2010 during a delivery from a tank truck via an intake structure (blue box, upper right) to one of the round tanks nearby (Jet A Tank PLA-1).  This area sits over a 19,000 gallon stormwater vault, connected to an oil-water separator, parts of the stormwater drainage system on the property. 

The spill flowed through underground drains (yellow lines), which pass through catch basins (yellow dots) and a second oil-water separator (red box).  A catch basin near the vault (CB #2) contains a special filter insert to trap pollutants from surface runoff.  At the time of the spill, Boeing staff on the scene did not realize this insert must be removed to view water in the storm drain below. 

The area between the last catch basin (CB #4) and the waterway is a pier held up by wooden pilings.  The storm drain outfall (green dot) – under the end of this pier – sits underwater at high tide. 

Boeing estimated that it lost about 6,600 gallons of fuel from an open ¾-inch maintenance valve on the intake structure, and that about 300 gallons flowed through the stormwater system to the outfall.  Boeing conducted an independent cleanup of sediments and rip-rap contaminated by the spill under and near the pier.


The spill occurred May 28, 2010 at a fuel terminal (round structures, right center) on Boeing property between East Marginal Way, S. (upper right) and the Duwamish Waterway (bottom center to upper left).   Ecology and the Coast Guard responded to reports of oil in the waterway on May 29, 2010, and found oil in the yellow-shaded area (upper left), downstream from Boeing, along the main channel and Slip 4, an inlet. 



Boeing’s fuel terminal - Only the tank in the right background is in use. It can hold more than 600,000 gallons of jet fuel. A tank truck delivered jet fuel via a connection on the structure in the foreground on May 28, 2010.  Fuel deliveries pass through a large fuel filter, the upright cylinder on the platform. A ¾-inch valve that drains oil from the filter for servicing was left open prior to a fuel delivery on May 28, 2010. Before terminal operators noticed and closed the open valve, some of the oil from this delivery drained through the valve, reaching a stormwater drainage system that discharges to the nearby Duwamish Waterway.


Sheen on the east side of the Duwamish Waterway, on the morning of June 1, 2010, as viewed from a pier over the stormwater outfall on the Boeing property, as first seen by Ecology responders.



Sheen contained by absorbent boom deployed by Boeing Staff, on the morning of June 1, 2010.




Absorbent pads and boom left along the shoreline by the falling tide, seen from the pier.



Boeing staff deploy absorbent boom on the morning of June 1, 2010, viewed from the same pier.



Contractors hired by Boeing deploy hard boom around the outfall to contain the oil sheen, as seen from the Boeing pier.



Oil cleanup pads under the Boeing pier, at low tide. Water covers this area at high tide. The stormwater outfall is just to the right, out of camera view, with the river just out of view to the left. Soil here continued to release sheen when covered by water. To end this problem, Boeing excavated contaminated soil and riprap from this area, and replaced it with clean material. The hard boom shown in the photo to the left contained oil sheen to this area.