1994. U.S. Geological Survey. This shapefile contains the boundaries of the 8-digit watersheds that intersect New York State. These hydrologic unit boundaries provide a uniquel...
1994. New York Cornell University Aquatic Ecology group. This dataset provides polygon coverage of the basins in the Great Lakes tributary watersheds of New York state, except for the Genesee, Black, Salm...
2000. New York State. Department of Environmental Conservation. This is an index to Large scale hydrography surface water areas tiled by HUC-8 sub-basin boundaries. Surface water areas extracted from New York St...
2013. New York State. Department of Environmental Conservation. These data are a set of ARC/INFO coverages composed of polygonal and linear features. Coverages are based on official New York State Freshwater Wet...
1998. James A. Miller (comp.). This data set contains the shallowest principal aquifers of New York State, portrayed as lines. The data set was developed as part of the effort to...
2011. New York State Water Resources Institute. This dataset presents counts of septic systems at the census tract level. Data were derived from 2011 county parcel data and aggregated by census t...
1996. New York Aquatic Gap Analysis Group. This shapefile contains polygons representing the stream basins of the Allegheny River watershed in western New York. Basins were developed for str...
1996. New York Aquatic Gap Analysis Group. This shapefile contains polygons representing the stream basins of the French Creek watershed in western New York. Basins were developed for stream...