Found 2445 datasets matching filters.
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The USGS compiles online access to water-resources data collected at approximately 1.5 million sites in all 50 States, the District of Columbia, Puerto Rico, the Virgin Islands, Guam, American...
Search relevance: 1.00 | Views last month: 161 | Catalog Last Checked: May 05, 2026 at 10:20 PM -
The USGS compiles online access to water-resources data collected at approximately 1.5 million sites in all 50 States, the District of Columbia, Puerto Rico, the Virgin Islands, Guam, American...
Search relevance: 1.00 | Views last month: 67 | Catalog Last Checked: May 05, 2026 at 08:58 PM -
Surface electrical resistivity tomography (ERT), electromagnetic induction (EMI), and self-potential (SP) data were acquired March 9 - 20, 2018 by the U.S. Geological Survey (USGS), in...
Search relevance: 1.00 | Views last month: 61 | Catalog Last Checked: May 05, 2026 at 09:10 PM -
This digital dataset defines the spring 1961 water-table altitude for the California's Central Valley. It was used to initiate the water-level altitudes for the upper zones of the transient...
Search relevance: 1.00 | Views last month: 53 | Catalog Last Checked: May 05, 2026 at 07:31 PM -
This part of the data release contains the raster representation of the groundwater-level altitude and groundwater-level change maps developed every 5 years from 1980 to 2015 for the upper Rio...
Search relevance: 1.00 | Views last month: 50 | Catalog Last Checked: May 05, 2026 at 09:23 PM -
This data release contains compiled historical groundwater-withdrawal data for the Coastal Lowlands aquifer system in Texas, Louisiana, Mississippi, Alabama, and Florida from 1925 to 2018. Most...
Search relevance: 1.00 | Views last month: 49 | Catalog Last Checked: May 05, 2026 at 08:35 PM -
The site characterization data used to develop the conceptual geologic model for the Snake River Plain site in Idaho, as part of phase 1 of the Frontier Observatory for Research in Geothermal...
Search relevance: 1.00 | Views last month: 46 | Catalog Last Checked: May 07, 2026 at 08:26 PM -
This digital dataset defines the well locations for hydraulic-head observations used in the calibration of the transient hydrologic model of the Central Valley flow system. The Central Valley...
Search relevance: 1.00 | Views last month: 44 | Catalog Last Checked: May 05, 2026 at 07:32 PM -
The California Water Quality Status Report is an annual data-driven snapshot of the Water Board’s water quality and ecosystem data. This third edition of the report is organized around the...
Search relevance: 1.00 | Views last month: 44 | Catalog Last Checked: July 29, 2025 at 02:35 AM -
The map graphic image at https://www.sciencebase.gov/catalog/file/get/63140561d34e36012efa2b7f?name=arsenic_map.png illustrates arsenic values, in micrograms per liter, for groundwater samples...
Search relevance: 1.00 | Views last month: 39 | Catalog Last Checked: May 05, 2026 at 10:13 PM -
This digital dataset defines the extent of the alluvial deposits in the Central Valley of California and encompasses the contiguous Sacramento, San Joaquin, and Tulare Lake groundwater basins...
Search relevance: 1.00 | Views last month: 39 | Catalog Last Checked: May 05, 2026 at 09:24 PM -
This digital dataset contains the name and location for the inflows to the surface-water network for the Central Valley Hydrologic Model (CVHM). The Central Valley encompasses an approximate...
Search relevance: 1.00 | Views last month: 37 | Catalog Last Checked: May 05, 2026 at 09:59 PM -
This U.S. Geological Survey data release contains datasets that combine past data with future projections of nitrogen sources and nitrogen export to the Chesapeake Bay watershed for the years...
Search relevance: 1.00 | Views last month: 35 | Catalog Last Checked: May 05, 2026 at 08:22 PM -
This digital dataset contains the categories used to classify the basin-fill deposits in the Central Valley as either coarse-grained or fine-grained deposits. This classification was used to...
Search relevance: 1.00 | Views last month: 35 | Catalog Last Checked: May 05, 2026 at 08:08 PM -
This digital dataset contains the 9 major areas used to subdivide the Central Valley for the interpolation of the percentage of coarse-grained deposits into the texture model. This texture model...
Search relevance: 1.00 | Views last month: 33 | Catalog Last Checked: May 05, 2026 at 09:12 PM -
This Data Release contains various types of hydrologic and geologic data from the Upper Rio Grande Focus Area Study from 1921-2017, including groundwater-level measurement data compiled and...
Search relevance: 1.00 | Views last month: 33 | Catalog Last Checked: May 05, 2026 at 08:37 PM -
This data set represents the extent of the Mississippi embayment aquifer system in the states of Louisiana, Arkansas, Mississippi, Alabama, Tennessee, and Kentucky.
Search relevance: 1.00 | Views last month: 32 | Catalog Last Checked: May 05, 2026 at 09:05 PM -
Airborne electromagnetic (AEM), magnetic, and radiometric data were acquired November 2018 to February 2019 along 16,816 line-kilometers (line-km) over the Mississippi Alluvial Plain (MAP). Data...
Search relevance: 1.00 | Views last month: 30 | Catalog Last Checked: May 05, 2026 at 10:10 PM -
Vertical electrical soundings (VES) are used to develop depth-resolved models of aquifer resistivity by making electrical potential measurements at increasingly larger electrode spacing, with the...
Search relevance: 1.00 | Views last month: 28 | Catalog Last Checked: May 05, 2026 at 08:37 PM -
This digital dataset contains the monthly inflows to the surface water network in the updated Central Valley Hydrologic Model (CVHM2) for water years 1922-2019. The surface water inflows are...
Search relevance: 1.00 | Views last month: 27 | Catalog Last Checked: May 05, 2026 at 08:30 PM
