PRINCE GEORGE'S COUNTY, Md. (7News) — A 19-year-old student in Prince George's County ... Bureau Chief Brad Bell that the 11th grader at Potomac High School, in Oxon Hill, was arrested.

This $615 million project is key to cleaning up the Potomac River ... by a Catholic school and streets on the edge of Old Town Alexandria. In coming months, the drill will go under the river ...

NEW YORK (CNN/Money) -- Potomac, Md. has the highest median household income ... The average American is 35.3 years old, according to census data. The average resident of Potomac is 43.8. They ...