Tidal Potomac River

Threats to the Potomac Watershed Residential Oil Tanks Without proper care, old and rusted heating old tanks can cause costly leaks and spills. Underground tanks are especially problematic because they can leak for years without notice. Large toxic spills may get all the media-fueled attention, but these silent, slow leaks add up to one major environmental problem for the Potomac River basin and its residents. (ICPRB Website)

    Interstate Commission on the Potomac River Basin (ICPRB) Website: https://www.potomacriver.org/

Location Four Mile Run flows through residential areas as well as urban corridors in south and western Arlington. Four Mile Run is the largest stream flowing through Arlington, draining approximately two-thirds of the County.

Flood Data Four Mile Run is a direct tributary of the Potomac River. The Potomac River Basin cradles the Four Mile Run watershed and ultimately drains it to the Chesapeake Bay. Four Mile Run rises in Fairfax County and flows downstream through the City of Falls Church and on to Arlington County. The final 2.3 miles of the run, before it opens to the Potomac River, are contained in a flood control channel designed in the early 1970s by the US Army Corps of Engineers (USACE). Although a USGS monitoring station within the Lubber Run and Doctor’s Branch watersheds could not be located, the USGS 1652500 gaging station on Four Mile Run located at the Shirlington Road Bridge has collected stream flow data since 1951.

This table is my initial list of trees and plants that I am going to study on my watersheds.