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This dataset consists of the boundary extent used to evaluate regolith thickness, bedrock altitude, depth to water, potentiometric-surface altitude, and saturated thickness for the shallow groundwater system in the Lower Gunnison River Basin, in Delta, Montrose, Ouray, and Gunnison Counties, Colorado. The U.S. Geological Survey prepared this dataset in cooperation with the Colorado Water Conservation Board.
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This data set consists of polylines representing groundwater-level altitude contours, 1982, for middle Humboldt River basin, north-central Nevada as published on plate 2, figure 3 in the U.S. Geological Survey Water-Resources Investigations Report 98-4209 titled "Hydrogeologic framework and ground-water levels, 1982 and 1996, middle Humboldt River basin, north-central Nevada," 1999. A subset of the contours were published as part of a larger data set representing water-table contours for Nevada (Buto and others, 2006). The remaining contours have been added to complete this data set. References Cited Buto, S.G., Evetts, D.M., Smith-Sager, S., 2006, Water-table contours of Nevada, accessed May 16, 2018 at URL https://water.usgs.gov/lookup/getspatial?sir2006-5100_wanv_l.
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Dataset contains the groundwater well locations and water-level measurements for 273 wells measured during a water-level survey of the Sparta-Memphis aquifer in Arkansas, January through June 2015. Well-location and water-level data is publicly available from the U.S. Geological Survey's National Water Information System.
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This dataset is the result of measurements of groundwater levels in the Equus Beds aquifer near Wichita, Kansas, in January 2016. Potentiometric surfaces are interpolated for the shallow and deep parts of the aquifer, and rasters of the potentiometric surfaces are included in this data release. Wells were classified as being screened in the shallow or deep parts of the aquifer based on station name (some wells have a layer identifier in the station name) or, if no indication of aquifer layer was given in the station name, based on the depth of the well; wells with depths less than 80 feet below land surface were classified as shallow and wells with depths of 80 feet or deeper were classified as deep. Contours with...
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This dataset is the result of measurements of groundwater levels in the Equus Beds aquifer near Wichita, Kansas, in January 2016. Potentiometric surfaces are interpolated for the shallow and deep parts of the aquifer, and rasters of the potentiometric surfaces are included in this data release. Wells were classified as being screened in the shallow or deep parts of the aquifer based on station name (some wells have a layer identifier in the station name) or, if no indication of aquifer layer was given in the station name, based on the depth of the well; wells with depths less than 80 feet below land surface were classified as shallow and wells with depths of 80 feet or deeper were classified as deep. Contours with...
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This dataset describes plume boundary extents for 2,4-dinitrotoluene (2,4-DNT) in the vicinity of the Badger Army Ammunition Plant in Sauk County, Wisconsin for various time intervals between 2000 - 2018.
Sulfur hexafluoride (SF6) is a trace atmospheric gas that is primarily of anthropogenic origin but also occurs naturally in fluid inclusions in some minerals and igneous rocks, and in some volcanic and igneous fluids. SF6 has been used as a dating tool of groundwater because atmospheric concentrations of SF6 are expected to continue increasing (Busenberg and Plummer, 1997). SF6 samples were collected in 30 wells in New Hanover County, North Carolina in May 2017. The results of these samples were input into a spreadsheet calculator developed by the USGS Groundwater Dating lab in order to estimate groundwater age based on SF6 concentrations. The wells sampled include monitoring, domestic, and large water user wells...
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The Neversink River watershed (above the Neversink Reservoir) has been a focus of U.S. Geological Survey (USGS) research regarding stream geochemistry, acidification, and ecology dynamics for decades. In 2019, the Water Mission Area Next Generation Water Observing Systems Program augmented the existing stream gage network there, including instrumentation to specifically characterize various aspects of groundwater discharge to streams. An important control on the spatiotemporal dynamics of groundwater discharge can be stream valley corridor depth to bedrock, otherwise conceptualized as the thickness of unconsolidated sediments sediments over the contiguous bedrock interface. In June 2019, and November 2020, passive...
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This data set consists of polylines representing groundwater-level altitude contours, 1996, for middle Humboldt River basin, north-central Nevada as published on plate 2, figure 4 in the U.S. Geological Survey Water-Resources Investigations Report 98-4209 titled "Hydrogeologic framework and ground-water levels, 1982 and 1996, middle Humboldt River basin, north-central Nevada," 1999. A subset of the contours were published as part of a larger data set representing water-table contours for Nevada (Buto and others, 2006). References Cited Buto, S.G., Evetts, D.M., Smith-Sager, S., 2006, Water-table contours of Nevada, accessed May 16, 2018 at URL https://water.usgs.gov/lookup/getspatial?sir2006-5100_wanv_l.
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This dataset includes the magnetotelluric (MT) sounding data collected in 2009 in and near the San Luis Basin, New Mexico. The U.S. Geological Survey conducted a series of multidisciplinary studies, including MT surveys, in the San Luis Basin to improve understanding of the hydrogeology of the Santa Fe Group and the nature of the sedimentary deposits comprising the principal groundwater aquifers of the Rio Grande rift. The shallow unconfined and the deeper confined Santa Fe Group aquifers in the San Luis Basin are the main sources of municipal water for the region. The population of the San Luis Basin region is growing rapidly and water shortfalls could have serious consequences. Future growth and land management...
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This dataset consists of contours showing the generalized depth to water for the shallow groundwater system in the Lower Gunnison River Basin in Delta, Montrose, Ouray, and Gunnison Counties, Colorado. Depth to water was contoured from values in the raster dataset dtw. The U.S. Geological Survey prepared this dataset in cooperation with the Colorado Water Conservation Board.
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This dataset consists of contours showing the generalized saturated thickness of the shallow groundwater system in the Lower Gunnison River Basin in Delta, Montrose, Ouray, and Gunnison Counties, Colorado. Saturated thickness was contoured from values in the raster dataset satthk. The U.S. Geological Survey prepared this dataset in cooperation with the Colorado Water Conservation Board.
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The regional Ozark aquifer potentiometric-surface map shows the altitude at which the water level would have risen in tightly cased wells and represents conditions during the period from November 2014 through January 2015. Water levels were measured during this period to ensure that wells had adequate time to recover from previous summer pumping and prior to the start of the 2015 summer pumping season. Groundwater-level data from 178 wells cased completely in and open to the Ozark aquifer are available from the USGS National Water Information System (NWIS; data available at http:// waterdata.usgs.gov/nwis). Streams and springs in the study area represent the intersection of the groundwater table with land surface;...
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This dataset is the result of measurements of groundwater levels in the Equus Beds aquifer near Wichita, Kansas, in January 2016. Potentiometric surfaces are interpolated for the shallow and deep parts of the aquifer, and rasters of the potentiometric surfaces are included in this data release. Wells were classified as being screened in the shallow or deep parts of the aquifer based on station name (some wells have a layer identifier in the station name) or, if no indication of aquifer layer was given in the station name, based on the depth of the well; wells with depths less than 80 feet below land surface were classified as shallow and wells with depths of 80 feet or deeper were classified as deep. Contours with...
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This dataset describes plume boundary extents for total dinitrotoluene (total DNT) in the vicinity of the Badger Army Ammunition Plant in Sauk County, Wisconsin for various time intervals between 2000 - 2018.
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The potentiometric surface of the Sparta Sand in northern Louisiana is shown by contours on four maps. Maps for 1900, 1965 , and spring 1975 are generalized, small-scale maps from previously published reports. The spring 1980 map (1:500,000) is based on measurements in 144 wells and includes the southern tier of counties in southern Arkansas. The map shows regional effects of pumping from the Sparta Sand and effects of local pumping centers at Magnolia and El Dorado, Ark., and at Minden, Ruston, Jonesboro-Hodge, Winnfield, Bastrop, and in the Monroe area of Louisiana. (USGS) First release: April, 2019; revised April 2021 (version 1.1). The previous version can be obtained by contacting the USGS Lower Mississippi-Gulf...
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The groundwater-level change maps for the Sparta-Memphis aquifer are constructed as a point-to-point comparison between wells measured in both 2011 and 2013. Wells not measured in both 2011 and 2013 were not included in the change maps construction. The 2011-2013 change map contains 261 corresponding wells. Groundwater-level differences were calculated by subtracting 2011 groundwater-level measurements, in ft below land surface from the 2013 groundwater-level measurements, in feet below land surface.
map background search result map search result map Ozark aquifer water-level contour dataset, SIM3348 Groundwater Levels in the Equus Beds Aquifer near Wichita, Kansas, January 2016 (shallow point measurements shapefile) Groundwater Levels in the Equus Beds Aquifer near Wichita, Kansas, January 2016 (shallow contours shapefile) Groundwater Levels in the Equus Beds Aquifer near Wichita, Kansas, January 2016 (deep contours shapefile) Magnetotelluric sounding data, stations 1-9, Taos Plateau Volcanic Field, New Mexico, 2009 Depth-to-water contours for the shallow groundwater system in the Lower Gunnison River Basin, Colorado Saturated-thickness contours for the shallow groundwater system in the Lower Gunnison River Basin, Colorado Boundary extent for datasets of regolith thickness, bedrock altitude, depth to water, potentiometric-surface altitude, and saturated thickness for the shallow groundwater system in the Lower Gunnison River Basin, Colorado Potential areas of groundwater discharge delineated July 20–24, 2009 in the upper Humboldt River Basin, northeastern Nevada. Magnetotelluric survey to characterize the Sunnyside Porphyry Copper System in the Patagonia Mountains, Arizona Wells sampled for groundwater-age dating in New Hanover County, North Carolina Groundwater-level altitude contours, 1982, middle Humboldt River basin, north-central Nevada (U.S. Geological Survey Water-Resources Investigations Report 98-4209) Groundwater-level altitude contours, 1996, middle Humboldt River basin, north-central Nevada (U.S. Geological Survey Water-Resources Investigations Report 98-4209) Digitized Contours from Georeferenced Plate 1980 from "Potentiometric maps of the Sparta Sand, northern Louisiana and southern Arkansas, 1900, 1965, 1975, and 1980" (Ryals, 1980; version 1.1, April 2021) Sparta-Memphis aquifer well point dataset, in Arkansas, January-June 2015 Water-level changes 2011-2013, in the Sparta-Memphis aquifer, in Arkansas Total DNT Plume Boundaries 2,4-DNT Plume Boundaries Passive seismic depth to bedrock data collected along headwater stream corridors in the Neversink River watershed, NY, USA Supporting GIS files in study to estimate groundwater vulnerability for elevated nitrates in the Puget Sound Basin, Washington, 2000-19 Magnetotelluric survey to characterize the Sunnyside Porphyry Copper System in the Patagonia Mountains, Arizona Total DNT Plume Boundaries 2,4-DNT Plume Boundaries Passive seismic depth to bedrock data collected along headwater stream corridors in the Neversink River watershed, NY, USA Groundwater Levels in the Equus Beds Aquifer near Wichita, Kansas, January 2016 (deep contours shapefile) Groundwater Levels in the Equus Beds Aquifer near Wichita, Kansas, January 2016 (shallow contours shapefile) Wells sampled for groundwater-age dating in New Hanover County, North Carolina Groundwater Levels in the Equus Beds Aquifer near Wichita, Kansas, January 2016 (shallow point measurements shapefile) Depth-to-water contours for the shallow groundwater system in the Lower Gunnison River Basin, Colorado Saturated-thickness contours for the shallow groundwater system in the Lower Gunnison River Basin, Colorado Boundary extent for datasets of regolith thickness, bedrock altitude, depth to water, potentiometric-surface altitude, and saturated thickness for the shallow groundwater system in the Lower Gunnison River Basin, Colorado Potential areas of groundwater discharge delineated July 20–24, 2009 in the upper Humboldt River Basin, northeastern Nevada. Groundwater-level altitude contours, 1996, middle Humboldt River basin, north-central Nevada (U.S. Geological Survey Water-Resources Investigations Report 98-4209) Groundwater-level altitude contours, 1982, middle Humboldt River basin, north-central Nevada (U.S. Geological Survey Water-Resources Investigations Report 98-4209) Digitized Contours from Georeferenced Plate 1980 from "Potentiometric maps of the Sparta Sand, northern Louisiana and southern Arkansas, 1900, 1965, 1975, and 1980" (Ryals, 1980; version 1.1, April 2021) Sparta-Memphis aquifer well point dataset, in Arkansas, January-June 2015 Supporting GIS files in study to estimate groundwater vulnerability for elevated nitrates in the Puget Sound Basin, Washington, 2000-19 Water-level changes 2011-2013, in the Sparta-Memphis aquifer, in Arkansas Ozark aquifer water-level contour dataset, SIM3348