Water and Wastewater Terms Beginning P
A B C D E F G H I J K L M N O P Q R S T U V W Y Z
point source
A discharge, often containing pollutants, from the end of a pipe or other clearly identifiable conveyance, such as ditches, channels, tunnels, conduits, wells, containers, rolling stock, concentrated animal feeding operations, landfill leachate collection systems, vessels, or other floating craft. A nonpoint source refers to runoff or a discharge from a field or similar source.