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Nonpoint Source Program

Staff Contact: Robert Ray (406) 444-5319

Welcome to the Montana Nonpoint Source Management Program web site. Our goal is to protect and restore water quality from the impacts of nonpoint sources of pollution in order to provide a clean and healthy environment.

Storm Water runoff in city streets
Pollutants such as motor oil, fertilizers,
yard wastes, and litter find their way
into our rivers and streams via stormwater drains. (Photo MDEQ)


Nonpoint Source (NPS) pollution, unlike pollution from industrial and sewage treatment plants (point sources), comes from many widespread sources and can be generated by most land use activities including agriculture, forestry, urban and suburban development, and others. NPS pollution is caused by rainfall or snowmelt moving over and through the ground. As the runoff moves, it picks up and carries away natural and human-made pollutants, finally depositing them into lakes, rivers, wetlands, coastal waters, and even our underground sources of drinking water. Common NPS pollutants include sediment, nutrients, heavy metals, pesticides, pathogens, pharmaceuticals, oil, and salt.

319 Program Activities Interested Parties - Sign up to recieve information on 319 program activities.

The Montana Watershed Coordination Council (MWCC) has a work group called the Water Activities Work Group (WAWG) that is associated with 319 program activities. Visit the MWCC website for more information.

Current NPS News