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Recreational Water Contact Health Advisory 
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Triadelphia Reservoir  

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Get Current 2.0 Program
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Extended and Enhanced Program Runs from July 1 to October 31

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What's Your Pipe Type?
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Learn about our lead reduction program.

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Laurel, Md. – October 11, 2023– WSSC Water today lifted the recreational water contact health advisory for the T. Howard Duckett Reservoir, which was issued earlier this summer due to high levels of blue-green algae. The end of the health advisory follows two consecutive weeks of extensive monitoring and testing showing algal concentrations and potential toxins well below advisory thresholds. Recreational users can safely resume allowable activities at the T. Howard Duckett Reservoir only. The contact health advisory remains in effect for the Triadelphia Reservoir.  

To learn about blue-green algae and algal blooms, visit WSSC Water’s Algal Blooms page

The Triadelphia and T. Howard Duckett reservoirs, located along the Patuxent River in Montgomery, Prince George’s & Howard counties, serve as drinking water sources for WSSC Water and as a recreational area for hiking, fishing and boating. It is important to note that WSSC Water’s drinking water was not affected and continues to meet all Safe Drinking Water Act standards. 

For up-to-date information on watershed activities, please call our hotline at (301) 206-4386 (4FUN). Permitting and regulation details can be found at www.wsscwater.com/watershed