Water Quality in the Western Lake Michigan Drainages, Wisconsin and Michigan, 1992-95
Water samples from 22 percent of shallow alluvial wells sampled in agricultural land-use areas exceeded the USEPA maximum contaminant level for nitrate as nitrogen of 10 mg/L. Nitrate concentrations were higher in land use area 2 where surficial deposits were more permeable (Saad, 1997). Typically, these shallow wells are not drinking-water sources.
Return to Fertilizers and Livestock Wastes Increase Nutrients in Streams and Ground Water