This is a phrase used for polluted runoff or other sources of water pollution that are hard to pinpoint the origin of the pollution. The term “nonpoint source pollution” comes from the federal Clean Water Act of 1987. In the Act, nonpoint source pollution is used to describe various types of water pollution that are not well-defined discharges (point sources) from wastewater plants or industries.
Many state agencies have nonpoint source (NPS) management programs that address polluted runoff. Nebraska’s NPS program is managed by the Nebraska Department of Environmental Quality (NDEQ). It serves as the central coordinating agency for the many NPS-related programs operated by various agencies.