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Press Release | May 19, 2025

Coast Guard responds to, investigates reported pollution in San Juan Harbor, Puerto Rico

SAN JUAN, Puerto Rico — Coast Guard Sector San Juan’s Incident Management team is investigating and responding to an oil discharge from a legacy pipe structure between piers 2 and 3 in San Juan Habor, Monday.  

The Coast Guard is working with contracted oil spill removal organizations and local government authorities to mitigate the pollution threat and clean up recoverable product.  

“The source of the oil discharge is being contained and, while contained, will allow normal port operations to continue at Piers 2 and 3 as our investigation and response efforts continue,” Lt. Cmdr. Ray Lopez, Coast Guard Sector San Juan Incident Management Division chief. “We are actively pursuing coordination and planning efforts with the San Juan Municipality, the Puerto Rico Ports Authority, the Department of Transportation and Public Works, the Department of Natural and Environmental Resources, and the Cultural Department, among other entities, to resolve this situation in the interest of protecting public health and the environment.”

Coast Guard watchstanders in Sector San Juan received a National Response Center pollution report following a patrol by Station San Juan and Incident Management Division personnel in San Juan Harbor, April 11. The patrol was a planned effort in support of Operation Resilient Coast which led Coast Guard personnel to discover the legacy pipe was slowly and persistently leaking heavy black oil into the water. Suspecting the oil may be linked to similar pollution incidents in the area, the Coast Guard team collected samples to be analyzed at the Coast Guard Marine Safety Lab.  

Due to the potential impacts to the waterway, the Coast Guard activated the Oil Spill Liability Trust Fund and contracted Clean Harbor Environmental Services, Inc. as the Oil Spill Removal Organization for the incident. On April 15, Clean Harbor crews temporarily plugged the affected pipe and deployed absorbent containment booms to capture and contain any material discharged into the water. Currently, Coast Guard Sector San Juan Incident Management Division personnel and Clean Harbor crews are actively monitoring and servicing the containment area by replacing absorbent and repositioning containment boom as required.  

On May 5,  the Coast Guard Sector San Juan Incident Management Division received analysis results from the Coast Guard Marine Safety Lab which confirmed collected samples have similar characteristics to the samples from the 2024 Pier 9 and 2021 Pier 4 mystery spills. These important similarities indicate these samples may be related to each other through a common source of petroleum oil.  

Future planned clean-up operations include conducting a sub-surface site assessment to help in finding a possible source, and further planning and development of potential response recovery strategies for any free oil product to reduce the likeihood of future incidents.  

As efforts continue, the Coast Guard is communicating and coordinating with local and federal government agencies and the Caribbean Regional Response Team to keep them informed on the status and progress of the response.  

To report oil pollution in the water, contact the National Response Center at 1-800-424-8802.  

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