WSSC Water Lifts Recreational Water Contact Health Advisory for Triadelphia and T. Howard Duckett Reservoirs

Laurel, Md. – October 12, 2022 – WSSC Water today lifted the recreational water contact health advisory for both the Triadelphia Reservoir and the T. Howard Duckett Reservoir, which were issued earlier this summer due to high levels of blue-green algae. The end of the health advisory follows extensive monitoring and testing showing algal concentrations and potential toxins well below advisory thresholds. Recreational users can safely resume allowable activities. 

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 wsscwater.com/watershed. 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.