by Kate Shunney
The Potomac River Conservancy has reported that in 2025, the Potomac River’s health remains at a “B” grade.
“That’s remarkable progress from a dismal ‘D’ in 2011,” the conservation group said in a release about the health of the river. 
Progress on the six health indicators for the Potomac River include improvements in pollution levels, fish, habitat, land, people and climate.
Pollution levels are determined by measuring nitrogen, phosphorous and sediment levels…
