Welcome to the Montana Department of Environmental Quality's

Nonpoint Source Wiki!

Agriculture	Urban/Suburban Storm Water	Forestry

Nonpoint Source (NPS) pollution, unlike pollution from industrial and sewage treatment plants (point sources), comes from many 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.

This site provides a place to share information and data relating to DEQ's Nonpoint Source Program.

• Check out our tutorial to get started
• Stay up to date with the NPS Calendar 
• Learn about TMDL Implementation
• Information on the 319 grant  program
• Information on the 319 mini-grant program
• Check out volunteer monitoring laboratory analysis support info
• Information and example Watershed Restoration Plans 
• Questions? Contact us by e-mail.

Our program is fueled by participation from the community, watershed groups, and organizations. Please add your thoughts or start a conversation about nonpoint source pollution in your watershed.

 Getting started is easy, click here to request access.  

• DEQ Home
• Water Quality Information Home
• Privacy & Security
• Accessibility
• Contact Us