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WASHINGTON (WUSA9) -- Heavy rainfall in the Greater Washington area has caused Washington Suburban Sanitary Commission to release water from both the Brighton Dam in Brookeville and the T. Howard Duckett Dam in Laurel.

Release of water from the dams is a precautionary measure to protect the integrity of both structures, officials said in a news release. These are routine, precautionary actions taken during times when heavy and long-lasting rainfall is predicted.

WSSC continuously monitors the level of the Triadelphia and Rocky Gorge reservoirs. In anticipation of the rainfall, WSSC began lowering the levels of both reservoirs on Monday.

The reservoir and dam system along the Patuxent River provides source drinking water for approximately 600,000 of WSSC's 1.8 million customers. Brighton Dam went into service in 1944 and the T. Howard Duckett Dam went into service in 1954. Brighton Dam created the Triadelphia Reservoir and Duckett Dam created the Rocky Gorge Reservoir.

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