OUR GEM: Tackling nonpoint source pollution in North Idaho, protecting Lake Coeur d’Alene
Nonpoint source pollution is a major environmental issue in North Idaho, particularly within the growing Lake Coeur d’Alene watershed. Unlike point source pollution, which stems from identifiable discharge points like pipes or ditches, NPS pollution is transported by diffuse sources such as rain or snowmelt. These waters pick up pollutants from urban areas, agricultural land, forests and residential zones, eventually draining into lakes, rivers and groundwater.
In North Idaho, multiple land-use activities contribute to NPS pollution:
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