The U.S. Geological Survey, in a major new report released Sept. 23, reports on nutrient pollution of surface and ground water that has failed to improve or has gotten worse since the early 1990s. The report, Elevated Nitrogen and Phosphorus Still Widespread in Much of the Nation’s Streams and Groundwater, says nitrate in excess of human health standards was found in 7 percent of private wells sampled nationwide and in more than 20 percent of the wells in agricultural areas. Read about the report in the Freshwater Society blog.