What is meant by point source and nonpoint source pollution?
Point source is any discernible, confined and discrete conveyance, such as a pipe or channel used to discharge wastewater. Point sources are usually associated with a particular facility where the discharge can be traced directly back to the point of discharge. Nonpoint source is just the opposite. It could come from anywhere or everywhere. Storm water runoff is one example of nonpoint source pollution. Storm water runoff flows across yards, streets, parking lots, etc. picking up pollutants and depositing them in local waterways and lakes.
