WSSC Water has detected high concentrations of blue-green algae, known as a Harmful Algal Bloom (HAB), in the T. Howard Duckett Reservoir. These HABs can cause adverse health effects. The reservoir, located along the Patuxent River in Montgomery, Prince George’s and Howard counties, serves as a drinking water source for WSSC Water and a recreational area for hiking, fishing and boating.
The on-going Health Advisory for the Triadelphia Reservoir remains in effect. WSSC Water’s drinking water is not affected and continues to meet all Safe Drinking Water Act standards. As a precaution, WSSC Water is closely monitoring water quality conditions at its Patuxent Water Filtration Plant. Visitors to WSSC Water’s T. Howard Duckett Reservoir should do the following: