You will need Adobe Reader to view some of the files on this page. See EPA's PDF page to learn more.Stormwater is generated as a result of precipitation, melting snowfall, and runoff from over-watering. In general, there are two types of pollution that can enter a waterway: non-point source pollution and point source pollution. EPA classifies stormwater running off of impervious surfaces, such as parking lots, roads, and buildings as point-source pollution.
Discharges to Groundwater