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Shapefiles of hydrogeologic unit extents and top-surface altitude contours used in the revised hydrogeologic framework for the Virginia Coastal Plain Southwest of the James River A revision to the hydrogeologic framework of the Virginia coastal plain southwest of the James River was developed by USGS during 2019-2021. This revision includes modifications to existing understanding of the groundwater system in Prince George, Surry, Sussex, Isle of Wight, and Southampton counties and the cities of Franklin and Suffolk in southeast Virginia. This USGS data release contains a csv file of interpreted borehole hydrogeologic-unit top-surface altitudes, a shapefile of the study area extent, a shapefile of faults within the study area, shapefiles of altitude contours for 12 hydrogeologic-unit top surfaces, shapefiles of hydrogeologic-unit margins for 10 hydrogeologic-units in the coastal plain of... Categories: Data; Tags: Franklin city, Geophysics, Hydrology, Isle of Wight County, James River, All tags... Prince George County, Southampton County, Stratigraphy, Suffolk city, Surry County, Sussex County, USGS Science Data Catalog (SDC), Virginia, Water Resources, aquifer, borehole logging, confining unit, groundwater, hydrogeologic framework, hydrogeology, hydrology, Fewer tags Rondout Neversink study area hydrogeologic framework layers Digital hydrogeologic datasets were developed for the Rondout-Neversink study area in upstate New York in cooperation with the New York State Department of Environmental Conservation. These datasets define the hydrogeologic framework of the valley-fill aquifer and surrounding till-covered uplands within the study area. Datasets include: bedrock elevation raster, lacustrine silt and clay top and bottom elevation rasters, lidar minimum elevation raster, lacustrine extent polygon, valley-fill extent polygon, and surficial geology polygons. Elevation layers were interpolated at 125-foot discretization to match the model grid cell size. Tags: Aquifer Mapping, Aquifer mapping, Bedrock mapping, GW Model, GW or SW, All tags... Geospatial Applications, Groundwater-Flow Modeling, Hydrogeologic framework, Lacustrine silt and clay, New York, Orange County, Rondout-Neversink, Source Water or Drinking Water, Sourcewater, Sullivan County, Ulster County, Valley fill, Water, Water Use and Availability Science, glacial geology, Fewer tags Digital elevations and extents of regional hydrogeologic units in the Northern Atlantic Coastal Plain aquifer system A digital model of the sedimentary Northern Atlantic Coastal Plain aquifer system is composed of 20 rasters and hydrogeologic unit extent polygons. Rasters describe the top elevations of regional aquifers and confining units at a resolution of 2640 feet (1/2 mile). The rasters are clipped to the extent polygons, which represent the spatial extents of the hydrogeologic units onshore and several miles offshore. This three-dimensional hydrogeologic model was constructed as part of a U.S. Geological Survey Groundwater Resources Program study of groundwater availability in the Northern Atlantic Coastal Plain (NACP) aquifer system, including parts of New York, New Jersey, Delaware, Maryland, Virginia, and North Carolina.... Categories: Data, Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Aquia aquifer, Delaware, Delmarva Peninsula, Eastern Shore, Fall Line, All tags... Fall Zone, Groundwater and Streamflow Information Program, Hydrogeology, Lower Chesapeake aquifer, Magothy aquifer, Maryland, Matawan aquifer, Monmouth-Mount Laurel aquifer, New Jersey, New York, North Carolina, Northern Atlantic Coastal Plain, Northern Atlantic Coastal Plain aquifer system, Piney Point aquifer, Potomac-Patapsco aquifer, Potomac-Patuxent aquifer, USGS Science Data Catalog (SDC), Upper Chesapeake aquifer, Virginia, confined, elevations, heterogeneous, hydrogeologic framework, hydrogeologic units, inlandWaters, surficial aquifer, unconfined, unconsolidated, Fewer tags Data Used to Assess the Hydrogeologic Framework with Emphasis on the Ogallala and Edwards-Trinity Aquifers, in and Near Gaines, Terry, and Yoakum Counties, Texas, 2018 More than 11,500 well records, such as geophysical logs, drilling descriptions, and published hydrogeologic framework information, were evaluated to help characterize the framework of hydrogeologic units in and near Gaines, Terry, and Yoakum Counties, Texas. Additional geophysical data were collected to improve the spatial coverage across the study area and to reduce uncertainty with regard to hydrogeologic unit extents. The evaluation of existing data plus the collection of new geophysical data provided that basis for developoing a refined understanding of how the saturated thickness of the Ogallala and Edwards-Trinity aquifers vary throughout the study area. Categories: Data; Tags: Gaines County, Geophysics, Hydrogeology, Llano Estacado Underground Water Conservation District, Sandy Land Underground Water Conservation District, All tags... South Plains Underground Water Conservation District, Terry County, Texas, USGS Science Data Catalog (SDC), Yoakum County, borehole geophysics, drillers descriptions, electric, electromagnetic, geologic, hydrogeologic framework, hydrogeologic unit, induction, natural gamma, resistivity, time-domain, Fewer tags Time-Domain Electromagnetic Data Used in the Hydrogeologic Framework Development and Refinement for the Ogallala and Edwards-Trinity Aquifers In and Near Gaines, Terry, and Yoakum Counties, Texas Declining groundwater levels in and near Gaines, Yoakum, and Terry Counties in the Texas Panhandle have raised concerns about the amount of available groundwater and the potential for water-quality changes resulting from dewatering and increased vertical groundwater movement between adjacent water-bearing hydrogeologic units. More than 9,800 well records, such as geophysical logs, drilling descriptions, and published hydrogeologic framework information, were evaluated to help characterize the framework of hydrogeologic units in the study area. Additional geophysical data were collected to improve the spatial coverage across the study area and to reduce uncertainty with regard to hydrogeologic unit extents. Of greatest... Tags: Gaines County, Llano Estacado Underground Water Conservation District, Sandy Land Underground Water Conservation District, South Plains Underground Water Conservation District, Terry County, All tags... Texas, Yoakum County, electromagnetic, geologic, hydrogeologic framework, hydrogeologic unit, resistivity, time-domain, Fewer tags Greene study area hydrogeologic framework layers Digital hydrogeologic datasets were developed for the Greene study area in upstate New York in cooperation with the New York State Department of Environmental Conservation. These datasets define the hydrogeologic framework of the valley-fill aquifer and surrounding till-covered uplands within the study area. Datasets include: bedrock elevation raster, lacustrine silt and clay top and bottom elevation rasters, lidar minimum elevation raster, lacustrine extent polygon, valley-fill extent polygon, and surficial geology polygons. Elevation layers were interpolated at 125-foot discretization to match the model grid cell size. Tags: Aquifer Mapping, Aquifer mapping, Bedrock mapping, Chenango County, GW Model, All tags... GW or SW, Geospatial Applications, Greene, Groundwater-Flow Modeling, Hydrogeologic framework, Lacustrine silt and clay, New York, Source Water or Drinking Water, Sourcewater, Valley fill, Water, Water Use and Availability Science, glacial geology, Fewer tags Jamestown study area hydrogeologic framework layers Digital hydrogeologic datasets were developed for the Jamestown study area in upstate New York in cooperation with the New York State Department of Environmental Conservation. These datasets define the hydrogeologic framework of the valley-fill aquifer and surrounding till-covered uplands within the study area. Datasets include: bedrock elevation raster, lacustrine silt and clay top and bottom elevation rasters (where present), LIDAR minimum elevation raster, lacustrine extent polygon, valley-fill extent polygon, and surficial geology polygons. Elevation layers were interpolated at 125-foot discretization to match what was done in previous work. Tags: Aquifer Mapping, Aquifer mapping, Bedrock mapping, Cattaraugus County, Chautauqua County, All tags... GW Model, GW or SW, Geospatial Applications, Glacial geology, Groundwater-Flow Modeling, Hydrogeologic framework, Jamestown, Lacustrine silt and clay, New York, Source Water or Drinking Water, Sourcewater, Valley fill, Water, Water Use and Availability Science, Fewer tags Hydrogeologic Data for the Development of the Hydrogeologic Framework of the Coastal Lowlands Aquifer System Regional Groundwater Availability Study Area in Texas, Louisiana, Mississippi, Alabama, and Florida Note: this data release has been deprecated. Please see new data release here: https://doi.org/10.5066/P9PEFY11. The U.S. Geological Survey (USGS) undertook a 5-year study beginning in 2016 to assess groundwater availability for the aquifers proximal to the Gulf of Mexico from the Texas-Mexico border to the western part of the panhandle of Florida; these aquifers are collectively referred to as the coastal lowlands aquifer system. This study is one of several regional groundwater availability studies being done as part of the USGS Water Availability and Use Science Program. Groundwater from the coastal lowlands aquifer system is used mainly for public, irrigation, and industrial supply. Land-surface subsidence... Tags: Alabama, Burkeville confining unit, Catahoula aquifer, Chicot aquifer, Coastal lowlands aquifer system, All tags... Cretaceous, Eocene, Florida, Gulf of Mexico, Holocene, Jasper aquifer, Louisiana, Miocene, Mississippi, Oligocene, Paleocene, Pleistocene, Pliocene, Quaternary, Regional Groundwater Availability Study, Tertiary, Texas, Vicksburg-Jackson confining unit, Water Availability and Use Science Program, conceptual model, elevation, formation contacts, hydrogeologic framework, structure, Fewer tags Glacial Environments and Surficial Sediments (GESS) Geodatabase for the Glaciated, Conterminous United States The Glacial Environments and Surficial Sediments geodatabase (GESS) data includes a polygon file with multiple attributes which describe the lithology, geomorphology, and related depositional environment of Quaternary-age surfical sediments in the glaciated conterminous United States. These attributes include: the map unit (GESS_MU), a geomorphic modifier (GESS_Modifier), a sediment stratification indicator (SedStrat), and a a sediment texture classification (Texture6). Possible GESS_MU values include: alluvial sediment, colluvial sediment, eolian sediment, lacustrine sediment, marine sediment, organic sediment, outwash, ice-contact deposits, island, residual soils, soliflucted sediment, till, bedrock, fill, and... Tags: confined and unconfined aquifers, geoscientificInformation, glaciated United States, glaciology, hydrogeologic framework, All tags... hydrogeologic terranes, hydrogeology, surficial geologic maps, surficial sediments, water use, Fewer tags Data used for developing a composite hydrogeologic framework for inclusion in a geoenvironmental assessment of undiscovered uranium resources in Pliocene- to Pleistocene-age geologic units of the Texas Coastal Plain A previously completed mineral resources assessment of the Texas Coastal Plain indicated the potential for future discovery of uranium resources. Composite hydrogeologic frameworks can be used in geoenvironmental assessments as a tool to understand potential effects of mining operations. Data for a composite hydrogeologic framework are documented in this data release. The hydrogeologic framework focused on the composite hydrogeologic unit consisting of the upper part of the Miocene-age Fleming Formation/Lagarto Clay, Pliocene-age Goliad and Pleistocene-age Willis Sands, Pleistocene-age Lissie and Beaumont Formations, and Holocene-age alluvial sediments (fluvial alluvium and eolian sand deposits). This composite... Categories: Data; Tags: Beaumont Formation, Burkeville confining unit, Chicot aquifer, Coastal Lowlands aquifer system, Environmental Health, All tags... Evangeline aquifer, Fleming Group, Goliad Sand, Gulf of Mexico, Holocene, Houston embayment, Lagarto Clay, Lissie Formation, Mineral Resources, Miocene, Pleistocene, Pliocene, Quaternary, Rio Grande embayment, San Marcos arch, Tertiary, Texas, USGS Science Data Catalog (SDC), Water Resources, Willis Sand, alluvium, conceptual model, elevation, environment, environmental health, formation contacts, geoenvironmental assessment, geoscientificInformation, health, human health, hydrogeologic framework, permissive tracts, structure, three-dimensional, uranium resources, Fewer tags Bedrock Lithology for Glaciated Conterminous United States The bedrock geology for the Glacial Environments and Surficial Sediments (GESS) geodatabase is an amalgamation of several “Integrated Geologic Map Databases for the United States” (Dicken and others, 2008; Ludington and others, 2007; Nicholson and others, 2007-1,-2,-3; Stoeser and others, 2007). Using the LITH62 and LITH62MINO attribute values from that series of maps and the associated lithclass 6.2 code text descriptions from the geodatabase, spatial elements of that geodatabase were grouped. A new GESS attribute was created, “Litho_class,” and each spatial element was given a Litho_class value of non-carbonate sedimentary rock, carbonate rock, non-carbonate metamorphic rock, volcanic rock, plutonic rock, or unconsolidataed... Tags: Connecticut, Idaho, Illinois, Indiana, Iowa, All tags... Kansas, Maine, Massachusetts, Michigan, Minnesota, Missouri, Montana, NAWQA, Nebraska, New Hampshire, New Jersey, New York, North Dakota, Ohio, Pennsylvania, Rhode Island, South Dakota, Vermont, Washington, Wisconsin, bedrock geologic units, carbonate rock, geological maps, geoscientificInformation, glaciated United States, hydrogeologic framework, hydrogeology, Fewer tags Cortland study area hydrogeologic framework layers Digital hydrogeologic datasets were developed for the Cortland study area in upstate New York in cooperation with the New York State Department of Environmental Conservation. These datasets define the hydrogeologic framework of the valley-fill aquifer and surrounding till-covered uplands within the study area. Datasets include: bedrock elevation raster, lacustrine silt and clay top and bottom elevation rasters, lidar mean elevation raster, lacustrine extent polygon, valley-fill extent polygon, and surficial geology polygons. Elevation layers were interpolated at 125-foot discretization to match the model grid cell size. Tags: Aquifer Mapping, Aquifer mapping, Bedrock mapping, Cortland, Cortland County, All tags... GW Model, GW or SW, Geospatial Applications, Groundwater-Flow Modeling, Hydrogeologic framework, Lacustrine silt and clay, New York, Source Water or Drinking Water, Sourcewater, Valley fill, Water, Water Use and Availability Science, glacial geology, Fewer tags Digital elevations and extents of regional hydrogeologic units in the Northern Atlantic Coastal Plain aquifer system A digital model of the sedimentary Northern Atlantic Coastal Plain aquifer system is composed of 20 rasters and hydrogeologic unit extent polygons. Rasters describe the top elevations of regional aquifers and confining units at a resolution of 2640 feet (1/2 mile). The rasters are clipped to the extent polygons, which represent the spatial extents of the hydrogeologic units onshore and several miles offshore. This three-dimensional hydrogeologic model was constructed as part of a U.S. Geological Survey Groundwater Resources Program study of groundwater availability in the Northern Atlantic Coastal Plain (NACP) aquifer system, including parts of New York, New Jersey, Delaware, Maryland, Virginia, and North Carolina.... Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Aquia aquifer, Delaware, Delmarva Peninsula, Eastern Shore, Fall Line, All tags... Fall Zone, Lower Chesapeake aquifer, Magothy aquifer, Maryland, Matawan aquifer, Monmouth-Mount Laurel aquifer, New Jersey, New York, North Carolina, Northern Atlantic Coastal Plain, Northern Atlantic Coastal Plain aquifer system, Piney Point aquifer, Potomac-Patapsco aquifer, Potomac-Patuxent aquifer, Upper Chesapeake aquifer, Virginia, confined, elevations, heterogeneous, hydrogeologic framework, hydrogeologic units, inlandWaters, surficial aquifer, unconfined, unconsolidated, Fewer tags Olean study area hydrogeologic framework layers Digital hydrogeologic datasets were developed for the Olean study area in upstate New York in cooperation with the New York State Department of Environmental Conservation. These datasets define the hydrogeologic framework of the valley-fill aquifer and surrounding till-covered uplands within the study area. Datasets include: bedrock elevation raster, lacustrine silt and clay top and bottom elevation rasters (where present) for the main lacustrine unit, lacustrine silt and clay top and bottom elevation rasters (where present) for an upper lacustrine unit, LIDAR minimum elevation raster, lacustrine extent polygons, valley-fill extent polygon, and surficial geology polygons. Elevation layers were interpolated at 125-foot... Tags: Allegany County, Aquifer Mapping, Aquifer mapping, Bedrock mapping, Cattaraugus County, All tags... Chautauqua County, GW Model, GW or SW, Geospatial Applications, Glacial geology, Groundwater-Flow Modeling, Hydrogeologic framework, Lacustrine silt and clay, New York, Olean, Source Water or Drinking Water, Sourcewater, Valley fill, Water, Water Use and Availability Science, Fewer tags Hydrogeologic Terranes for Glaciated Conterminous United States The Hydrogeologic Terranes dataset includes separate polygon and line feature classes. The polygon feature class divides the glaciated United States into seventeen distinct terranes using a geologically based approach. Each terrane contains Quaternary sediment that is derived from a common depositional history and can be characterized by texture and thickness. Delineation of hydrogeologic terranes was based on an interpretation of existing geologic mapping of surficial and Quaternary deposits, and thickness of unconsolidated material. Overall thickness of Quaternary sediment was used to qualitatively rank the generalized complexity of geologic framework in each terrane: "lower" complexity (assigned a terrane code... Tags: confined and unconfined aquifers, geoscientificInformation, glaciated United States, glaciology, hydrogeologic framework, All tags... hydrogeologic terranes, hydrogeology, surficial geologic maps, surficial sediments, water use, Fewer tags Data used to describe hydrogeologic units and create contour maps and cross sections of the Boone and Roubidoux Aquifers, northeastern Oklahoma The Ozark Plateau aquifer system stretches across approximately 70,000 square miles (mi2) of Arkansas, Missouri, Kansas and Oklahoma, and is composed of many hydrogeologic units, such as the Boone aquifer and the Roubidoux aquifer. However, this data release is focused on only 11,000 mi2 in northern Arkansas, southeastern Kansas, southwestern Missouri, and northeastern Oklahoma. The Boone aquifer covers approximately 10,700 mi2 of this area, and the Roubidoux aquifer covers the 11,000 mi2 area entirely. These aquifers are mostly made of Mississippian-aged and Ordovician-aged carbonate rock, and serve as the main sources of fresh groundwater in northeastern Oklahoma (Imes and Emmett, 1994). In 2017, the U.S. Geological... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, OGC WFS Layer, OGC WMS Layer, Raster, Shapefile; Tags: Arkansas, Boone, Kansas, Missouri, Oklahoma, All tags... Oklahoma, Ozark, Ozark Plateaus aquifer system, Ozarks, Roubidoux, U.S. Geological Survey, USGS Science Data Catalog (SDC), Water Resources, Water Science Center, altitude, aquifer, contouring, digital elevation models, elevation, geoscientificInformation, geospatial datasets, hydrogeologic framework, hydrogeology, inlandWaters, stratigraphic sections, structural geology, Fewer tags Fishkill and Wappinger Falls study area hydrogeologic framework layers Digital hydrogeologic datasets were developed for the Fishkill and Wappinger Falls study area in upstate New York in cooperation with the New York State Department of Environmental Conservation. These datasets define the hydrogeologic framework of the valley-fill aquifer and surrounding till-covered uplands within the study area. Datasets include: bedrock elevation raster, lacustrine silt and clay top and bottom elevation rasters (where present), LIDAR minimum elevation raster, lacustrine extent polygon, valley extent polygon, and surficial geology polygons. Elevation layers were interpolated at 125-foot discretization to match what was done in previous work. Tags: Aquifer Mapping, Aquifer mapping, Bedrock mapping, Dutchess County, GW Model, All tags... GW or SW, Geospatial Applications, Glacial geology, Groundwater-Flow Modeling, Hydrogeologic framework, Lacustrine silt and clay, New York, Putnam County, Source Water or Drinking Water, Sourcewater, Valley fill, Water, Water Use and Availability Science, Fewer tags Topobathymetric Digital Elevation Model (TBDEM) of the Eastern Shore Peninsula of Virginia and adjacent parts of Maryland with a horizontal resolution of 1 meter and vertical resolution of 1 centimeter This topobathymetric digital elevation model (TBDEM) represents the topography and bathymetry for the Eastern Shore peninsula of Virginia, including Accomack and Northampton counties, and extending into Worcester and Somerset counties in Maryland. The TBDEM has a horizontal grid spacing of 1 meter and vertical units of 1 (integer) centimeter. This dataset combines U.S. Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center Coastal National Elevation Database topobathymetric DEM (CoNED TBDEM) data with data from the USGS Northern Atlantic Coastal Plain DEM, the latter of which were used to extend the bathymetric surface further offshore. In some areas, National Map 3D Elevation Program (3DEP)... Categories: Data; Types: Data, Raster; Tags: Accomack County, Digital Elevation Model (DEM)., Groundwater and Streamflow Information Program, Maryland, Northampton County, All tags... Northern Atlantic Coastal Plain, Somerset County, USGS Science Data Catalog (SDC), Virginia, Worcester County, bathymetry, digital elevation models, elevation, elevational gradient, hydrogeologic framework, inlandWaters, land surface characteristics, topography, Fewer tags Geospatial datasets developed for a groundwater-flow model of the Denver Basin aquifer system, Colorado In 2004, the U.S. Geological Survey initiated a large-scale regional study of the Denver Basin aquifer system to evaluate the hydrologic effects of continued pumping and document an updated groundwater-flow model useful for appraisal of hydrologic conditions (Paschke, 2011). This data release includes spatial datasets used as input for a three-dimensional groundwater-flow model of the Denver Basin aquifer system. Spatial datasets were developed for six Denver Basin bedrock aquifers and five intervening confining units including, from oldest to youngest, the Laramie-Fox Hills aquifer (KLF), Laramie confining unit (KLC), lower Arapahoe aquifer (LKA), Arapahoe confining unit (KAC), upper Arapahoe aquifer (UKA), Denver... Tags: Colorado, Denver Basin, Denver Basin aquifer system, Hydrology, Structural Geology, All tags... USGS Science Data Catalog (SDC), Water Resources, bedrock aquifer, confining unit, groundwater-flow model, hydrogeologic framework, Fewer tags Altitudes and Thicknesses of Hydrogeologic Units of the Ozark Plateaus Aquifer System in Arkansas, Kansas, Missouri, and Oklahoma A hydrogeologic framework of the Ozark Plateaus aquifer system was constructed as the base for a groundwater flow model developed as part of the U.S. Geological Survey Water Availability and Use Science Program to aid in the understanding of groundwater availability in select aquifer systems of the United States. The Ozark Plateaus aquifer system study area (hereinafter referred to as the “Ozark system”) is nearly 70,000 square miles and includes parts of Arkansas, Kansas, Missouri, and Oklahoma. A hydrogeologic framework was constructed to represent the altitudes and thicknesses of nine hydrogeologic units within the Ozark Plateaus aquifer system - . the Western Interior Plains confining system, Springfield Plateau... Types: Citation; Tags: Arkansas, Hydrogeology, Kansas, Lower Mississippi-Gulf, Missouri, All tags... Oklahoma, Ozark Plateaus aquifer system, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), Water Availability and Use Science Program, Water Science Center, aquifer, borehole data, confining unit, environment, framework, geoscientificInformation, groundwater, groundwater availability, groundwater availability project, groundwater modeling, hydrogeologic framework, hydrogeologic modeling, hydrogeology, inlandWaters, surficial aquifer, Fewer tags 1 2 »