What are the problems with stormwater runoff in Fairfax County?
As the amount of impervious surface increases, the volume of stormwater runoff increases, resulting in erosion, flooding, and a swell in the flow of harmful pollutants through storm drains and to streams. Fairfax County is made up of approximately 17 percent impervious surface. According to the recent Fairfax County Stream Protection Strategy Baseline Study, 70 percent of the streams in the county are in fair to very poor condition.
