Nonpoint Source Pollution - Unfinished Business on the Water Quality Agenda

Although many and varied, all sources of water pollution are classified as either point or nonpoint. Pollution comes from a point source if its origins are distinct and identifiable; hence, point source is also called an end-of-the-pipe source. Pollution from point sources can usually be quantified, often by direct measurement. Point sources can often be regulated effectively with federal and state permits.This item is part of the Water Resources Research Center collection. For more information, please contact the Center, (520) 621-9591 or see http://wrrc.arizona.edu