Discharges from emergency fire-fighting vehicles
Rising ground waters
Uncontaminated groundwater
Drinking water line flushing
Uncontaminated landscaping irrigation/irrigation water/lawn watering
Uncontaminated springs
Uncontaminated footing drains and pumps
Flows from riparian habitats and wetlands
Street wash waters resulting from normal street cleaning operations
Discharges within the constraints of (and allowed from) a NPDES permit from TDEC
Unlike wastewater, which is treated before it is released back into the environment, stormwater goes directly into a community’s streams and lakes. Because stormwater comes in large amounts at unpredictable times, treating it as wastewater would be very expensive. However, there are Best Management Practices (BMP) which can reduce the impact of stormwater.