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Navy Vessel USS Sampson Spills 2,000 Gallons of Diesel into Seattle Harbor During Maintenance
Military By Johnathan Declan · Jul 15, 2026

Navy Vessel USS Sampson Spills 2,000 Gallons of Diesel into Seattle Harbor During Maintenance

The U.S. Navy's Arleigh Burke-class guided missile destroyer USS Sampson has been involved in a diesel fuel spill incident while undergoing maintenance at the Vigor Shipyard on Harbor Island in Seattle, Washington. The ship was being defueled when approximately 2,000 gallons of diesel fuel leaked into the bay waters. Initial estimates had suggested that up to 5,000 gallons might have been spilled, but recovery efforts have significantly reduced this figure.

The Navy and its contractors are working diligently with local spill response teams to address the environmental impact swiftly and responsibly. Recovery operations commenced immediately following the incident and continue around the clock. As of now, most of the diesel fuel has reportedly been contained and recovered from the water. The U.S. Coast Guard has confirmed that the responsibility for the spill lies with the Navy.

Prior to the accident, an oil containment boom was installed in compliance with Navy regulations to prevent further spread of the spilled fuel. Cleanup efforts are currently utilizing three portable skimmers, a skimmer boat, and absorbent materials to collect as much of the leaked diesel as possible. The containment measures will remain in place until all recoverable fuel is removed from the water.

The exact cause of the spill remains under investigation by relevant authorities. This incident highlights the potential risks associated with naval vessel maintenance activities near populated coastal areas. Environmental concerns are heightened due to the sensitive marine ecosystem around Seattle, which supports a variety of wildlife and commercial fishing operations.

The USS Sampson had recently returned from a deployment in the Caribbean where it was involved in counter-narcotics operations under U.S. Southern Command. The ship's return to Naval Base San Diego in September marked the end of its mission before being replaced by another Arleigh Burke-class destroyer, the USS Stockdale, which continues the operation.

This spill underscores the need for stringent safety protocols and rigorous oversight during naval vessel maintenance procedures. Environmental groups are likely to scrutinize this incident closely as it could have significant implications for future operations in ecologically sensitive areas near major urban centers. The Navy's commitment to responsible environmental stewardship will be put under scrutiny following this unfortunate event.

Cleanup efforts will continue until all recoverable diesel fuel is removed from the water, and the USS Sampson can proceed with its scheduled maintenance work at the dry dock.

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