Rate these potential water quality threats to the James River on a 1-10 scale, 10 being highest threat and 1 being lowest threat:
Stormwater runoff is rainfall that flows over the ground surface. It is created when rain falls on roads, driveways, parking lots, rooftops, and other paved surfaces that do not allow water to soak into the ground. Stormwater runoff from urban areas causes nearby streams and rivers to flood faster compared to runoff from the same storm falling over a forested area. Stormwater runoff also picks up and carries with it many different pollutants that are found on paved surfaces such as oil, grease, nitrogen, phosphorus, bacteria, trash, pesticides, and metals.