WSSC has issued a Harmful Algal Bloom (HAB) Advisory for the Triadelphia Reservoir, warning to avoid direct contact with water. Drinking water is not affected. The Triadelphia Reservoir is located along the Patuxent River, near the Olney/Brookeville area, between Montgomery and Howard Counties. Their full message can be seen below:
“WSSC Water has detected high concentrations of blue-green algae in the Triadelphia Reservoir, which can cause serious adverse health effects if contacted. The reservoir, located along the Patuxent River in Montgomery and Howard counties, serves as a drinking water source for WSSC Water and as a recreational area for hiking, fishing and boating.