skip to main content | skip to footer
N.C. Department of Environment and Natural Resources

NC Department of Environment and Natural Resources
Water Quality - Non-Point Source

Water Quality

***NEWS: 2014 EPA Approved NPS Nonpoint Source Management Plan

Nonpoint Source Management Program:

What is Nonpoint Source Pollution?

 

In general terms, nonpoint source (NPS) pollution is any source of pollution that enters the environment through some means other than a discrete conveyance, such as a pipe from a sewage treatment plant. Nonpoint source pollution is diffuse in character.  The main form of nonpoint source pollution is the polluted runoff that drains into our streams, rivers, lakes and estuaries.  Runoff occurs when rainwater or snowmelt or irrigation water doesn't soak into the ground but rather runs off the land or developed surfaces into a body of water. As runoff flows over surfaces, including our streets, parking lots, yards, construction sites, farms, and forests, it picks up the things in its path including fertilizers, loose soil (sediment), animal waste, leaking motor oil, chemicals such as pesticides and herbicides, oil, grease, metals, pathogens (bacteria and viruses) and trash.  This runoff -  then drains either directly to a water body or to a storm drain that flows to a waterbody - and carries with it the pollutants it has picked up. 

 

NPS CATEGORIES:

 

Slide Presentation on NPS Pollution This presentation describes DWQ's water quality programs, the nature of nonpoint source water pollution, and water quality conditions in North Carolina.

NEW: 2014 North Carolina NPS Management Program Update

38364 FEEDBACK

Your input is valuable to us. Please send us your feedback.

What type of feedback would you like to send?*

Ask a Question Report a Problem Have a Concern Make a Comment

(If you would like us to respond please include your phone or e-mail.)

Your Question has been sent. Thank you!

An internal server error prevented Your Question from being sent.
Please try again later, or call Toll-Free (877) 623-6748 for immediate assistance.

Please complete all highlighted items

Your Problem has been sent. Thank you!

An internal server error prevented Your Question from being sent.
Please try again later, or call Toll-Free (877) 623-6748 for immediate assistance.

Please complete all highlighted items

Your Concern has been sent. Thank you!

An internal server error prevented Your Question from being sent.
Please try again later, or call Toll-Free (877) 623-6748 for immediate assistance.

Please complete all highlighted items

Your Comment has been sent. Thank you!

An internal server error prevented Your Question from being sent.
Please try again later, or call Toll-Free (877) 623-6748 for immediate assistance.

Please complete all highlighted items

*If you are a DENR employee with an I.T. issue, please submit a DOTS ticket.