From many sources
After a rain shower, it may look cleaner. But all the dirt and debris that was on the land has to go somewhere. As storm water flows, it picks up bits of dirt, auto fluids, chemicals and grass clippings. All get washed into the storm drain system. This “non-point source” water pollution comes from yards, driveways, parking lots, rooftops, streets, even golf courses.
From a single source
“Point source” pollution comes from a single source. Some examples include a factory or a sanitary sewage treatment facility discharging into a stream. Point source pollution could also come from a spill such as a tanker truck accident where fuel or other contaminants flow into the storm drain system. Sometimes people intentionally (and illegally) dump paint, used oil, leaves or other pollutants in storm drains.
After a rain shower, it may look cleaner. But all the dirt and debris that was on the land has to go somewhere. As storm water flows, it picks up bits of dirt, auto fluids, chemicals and grass clippings. All get washed into the storm drain system. This “non-point source” water pollution comes from yards, driveways, parking lots, rooftops, streets, even golf courses.
From a single source
“Point source” pollution comes from a single source. Some examples include a factory or a sanitary sewage treatment facility discharging into a stream. Point source pollution could also come from a spill such as a tanker truck accident where fuel or other contaminants flow into the storm drain system. Sometimes people intentionally (and illegally) dump paint, used oil, leaves or other pollutants in storm drains.