This dataset is obsolete. For current watershed boundary data, use the NRCS's new watershed dataset. This shapefile describes 'watershed' hydrologic units, which are a...
Database containing more than 33,466 records on water quality from 1986 to the present from 622 testing sites throughout Pennsylvania. Information in records includes at least...
The U.S. Geological Survey (USGS) stream-gauging program provides streamflow data for a variety of purposes that range from current needs, such as flood forecasting, to future...
This map service allows users to build a thematic chloropleth map of Kentucky or a selected area within the state from a selection of 545 groundwater quality analytes in 15...
Description This dataset is a complete digital hydrologic unit boundary layer to the subwatershed (12-digit) 6th level at 1:24,000 scale. It consists of geo-referenced digital...
The local resolution basic hydrography dataset is a hybrid dataset developed by the West Virginia GIS Technical Center as part of the effort to create local resolution NHD data...
Gathering Resources...Database containing more than 33,466 records on water quality from 1986 to the present from 622 testing sites throughout Pennsylvania. Information in records includes at least...