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Location Folder Show Tree ROOT ScienceBase Catalog Filters Date Range Past year (1) Past month (1) Past week (0) Past day (0) Custom range... To   Search Extensions Shapefile (1) Types Map Service (2) OGC WFS Layer (2) Downloadable (1) OGC WMS Service (1) Shapefile (1) Contacts Tyler D Johnson U.S. Geological Survey U.S. Geological Survey - ScienceBase John T Wilson New England Water Science Center More... Categories Data (1) Tag Types USGS Scientific Topic Keyword (1) Theme (1) Place (1) Tag Schemes USGS Thesaurus (1) Common geographic areas (1) ISO 19115 Topic Category (1) View Results as: JSON ATOM CSV Browse Folder

Hydraulic Models and Supplementary Data for Selected Stream Crossing Sites in the Squannacook River Basin, North-Central Massachusetts (Under Revision) Note: this data release is currently being revised and is temporarily unavailable. This data release contains links to two child items containing hydrology and hydraulic modeling data and supplemental geospatial data for selected stream crossing sites in the Squannacook River Basin in north-central Massachusetts. The child item named “Hydraulic model data for selected stream crossing sites in the Squannacook River Basin, North-Central Massachusetts” contains U.S. Army Corps of Engineers’ Hydrologic Engineering Center River Analysis System (HEC-RAS) hydraulic model files along with field survey data associated with each stream crossing location. This data release also includes a data dictionary defining culvert... Categories: Data Release - Under Revision; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Aquatic Biology, Geomorphology, Hydrology, Remote Sensing, Wildlife Biology Community public supply based Hydrogeologic Mapping Units A seamless map of the major groundwater areas used by community public supply wells in the United States was needed in order to describe and compute the number of equivalent people using public supply water. This goal was met by the delineation of hydrogeologic mapping units (HMUs). An HMU is a mapped polygon, within which, all public supply wells have a common source of water. The source of water can be either a national Principal Aquifer (PA) as defined in USGS (2003) or a Secondary Hydrogeologic Region (SHR) as defined in Belitz et al. (2018). Collectively, both PAs and SHRs are referred to as Hydrogeologic Regions (HRs). The common source of water can be a single HR or multiple HRs, as HRs can overlap one another.... Categories: Data, Data Release - Under Revision; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: United States, geoscientificInformation, groundwater, hydrogeology