A.A. Forgotten fundamentals of the energy crisis. According to 1990 U.S. Census data, the population of Prince William County was 215,000. Post your answer. Post your answer. Impervious Surface Development, the erection of human-built structures, is a result of local population growth.
Development brings with it an increase in the amount of impervious surface in the environment.
Impervious surfaces collect runoff preventing it from filtering into the soil and surface sediments where the water is filtered removing some pollutants and stored. Runoff which comes from rain and snowmelt can collect pollutants in paved areas from man-made sources such as vehicles. Paved areas also increase the risk of flash flooding. To lessen the potential hazard of flash flooding, stormwater management systems are incorporated into development plans. Such systems consist of a network of drains that collect runoff from streets and large parking areas and divert the runoff into local waterways.