Historical Watershed Information

The Crescent Lake Watershed Association has been working to protect Crescent Lake with our partners since 2008. An important part of that work is examining the land in watershed itself. Through this work we work with landowners to identify and remediate sources of nonpoint pollution.

NPS pollution generally results from land runoff, precipitation, atmospheric deposition, drainage, seepage or hydrologic modification. NPS pollution, unlike pollution from industrial and sewage treatment plants, comes from many diffuse sources. 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 ground waters.