Nitrate-concentration data are used in conjunction with land-use and land-cover data to estimate median nitrate concentrations in groundwater underlying the New Jersey (NJ) Highlands Region. Sources of data on nitrate in 19,670 groundwater samples are
Baker, Ronald J. rbaker@usgs.gov,Chepiga, Mary M. mchepiga@usgs.gov,Cauller, Stephen J. sjcaulle@usgs.gov. Median nitrate concentrations in groundwater in the New Jersey Highlands Region estimated using regression models and land-surface characteristics. 2015-01-01.