Water-quality Assessment Of The Hudson River Basin In New York And Adjacent States

The Hudson River basin encompasses about 13,300 mi 2 in parts of eastern New York, Vermont, New Jersey, Massachusetts, and Connecticut. More than 60 percent of the basin is forested, and about 25 percent is agricultural; only 7.8 percent is urban. This report presents analysis of data from the U. S. Geological Survey NWIS (National Water Information System) collected during 1970-90 as part of several water-quality studies. The ground-water data analysis given herein represents nutrient concentrations at 100 wells and pesticide and volatile organic compound concentrations at 11 wells; well-depth and hydrogeologic information are available for all wells used in the analysis.