Point Source Pollution in Colorado Point Source Pollution in Colorado A point source of pollution enters a stream or lake at an identifiable location and can usually be measured.
Examples are discharges from factories into a river through a pipe, ditch, or tunnel.
Point sources have strict regulations on them. In Colorado, stream segments are classified according to use. These classifications identify the those uses that are to be protected on a stream segment. Numerical standards for specific pollutants are then adopted which are designed to protect the designated uses. Outstanding waters are high quality waters that constitute an outstanding natural resource.