Certain land uses, such as cattle feed lots and landfills, have high amounts of pathogenic organisms present in their runoff. Using a system of rating land use types as high, moderate, or low the risk of pollution runoff from land use classes has been analyzed. The results are shown on the map at right. Yellow areas indicate land uses that have a low risk, pink areas indicate land uses that have a moderate risk, and red areas indicate land uses that have a high risk for pathogenic organism pollution.
Blue areas indicate land uses for which there are insufficient data to analyze.
Please click on the map for a larger view. The map shown at right shows wetlands and the relative risk for receiving runoff with elevated levels of pathogenic organisms. Green areas indicate wetlands that have no risk of pollution from surrounding land uses. These are wetlands that are surrounded by natural areas, preserves, or vacant land. The scale of risk corresponds to a gradient of color from white to deep red.