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This dataset is a file of contour lines representing the estimated altitude of the water table in western Sarpy County. This dataset was developed as part of a cooperative study between the Papillion-Missouri River Natural Resources District (PMRNRD) and USGS which began in 2017. The goal of this study was to develop a hydrogeologic visualization model of western Sarpy County using GeoScene3D. In 2016, the PMRNRD contracted airborne electromagnetic surveys (AEM) of the area to be completed to better understand the stratigraphy and hydrogeology of the western Sarpy County area. The PMRNRD determined that they wanted to incorporate the AEM data into a visualization tool that would allow PMRNRD staff to easily interact...
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The High Plains aquifer extends from approximately 32 to 44 degrees north latitude and 96 degrees 30 minutes to 106 degrees west longitude. The aquifer underlies about 175,000 square miles in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming. This digital dataset consists of a raster of water-level changes for the High Plains aquifer, predevelopment (about 1950) to 2019. It was created using water-level measurements from 2,741 wells measured in both the predevelopment period (about 1950) and in 2019, the latest available static water level measured in 2015 to 2018 from 71 wells in New Mexico and using other published information on water-level change in areas with few water-level...
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This dataset is the raster, in feet, of the potentiometric-surface map, spring 2018, Mississippi River Valley alluvial (MRVA) aquifer. The raster cell size is 1,000 meters; the raster altitude data was referenced to the North American Vertical Datum of 1988 (NAVD 88). The raster was interpolated using (1) most of the available groundwater-altitude data from wells and surface-water-altitude data from streamgages, and (2) potentiometric-surface contours.
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An integrated hydrologic-flow model, called the Central Platte Integrated Hydrologic Model, was constructed using the MODFLOW-One-Water Hydrologic Model code with the Newton solver. This code integrates climate, landscape, surface water, and groundwater-flow processes in a fully coupled approach. This study provided the Central Platte Natural Resources District (CPNRD) with an advanced numerical modeling tool to assist with the update of their Groundwater Management Plan by providing them information on modeled future GW levels under different climate scenarios and management practices. This tool will allow the CPNRD to evaluate other scenarios as management changes in the future. A predevelopment model simulated...
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This dataset is a point shapefile of wells measured for the potentiometric surface maps of the Mississippi River Valley alluvial aquifer (MRVA) in Spring 2016, 2018, and 2020. The data provided for each well considered in the applicable potentiometric surface map are the water-level date, altitude [relative to the North American vertical datum of 1988 (NAVD88)], a useYYYY code (which is positive if the water level was used in the potentiometric surface map for that year), a use comment (which is populated for water levels not used), and the water-level change values, for 2016-18, 2018-20, and 2016-20 for water levels with positive useYYYY codes for the applicable years. The data provided for each streamgage considered...
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This dataset is a raster surface, in feet, of the depth to water, spring 2020, Mississippi River Valley alluvial aquifer (MRVA). The raster cell size is 1,000 meters (3,280.8 ft). The raster was interpolated using (1) depth-to-water (GW_D2W) data from wells and (2) an assumed value of zero for depth to water at streamgages (SW_D2W) because the precise depth to groundwater at the streamgage is not known..The streamgage data is used only when it appears the regional aquifer and surface water are hydrologically connected.
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The High Plains aquifer extends from about 32 degrees to almost 44 degrees north latitude and from about 96 degrees 30 minutes to 106 degrees west longitude. The aquifer underlies about 175,000 square miles in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming. This digital data set is comprised of water-level measurements from 7,698 wells measured in both 2015 and 2017, which were used to map water-level changes, 2015 to 2017. The map was reviewed for consistency with the relevant data at a scale of 1:1,000,000.
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This dataset is a raster surface, in feet, of the depth to water, spring 2016, Mississippi River Valley alluvial aquifer (MRVA). The raster cell size is 1,000 meters (3,280.8 ft). . The raster was interpolated using (1) depth-to-water (GW_D2W) data from wells and (2) an assumed value of zero for depth to water at streamgages (SW_D2W) because the precise depth to groundwater at the streamgage is not known. The streamgage data is used only when it appears the regional aquifer and surface water are hydrologically connected.
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This dataset contains surface-water-altitude (SWA) data from streamgages that was used or considered to create a potentiometric-surface map for the Mississippi River Valley alluvial (MRVA) aquifer for spring 2018. The surface-water-altitude data was referenced to the North American Vertical Datum of 1988 (NAVD 88). The streamgages are measured continuously. The streamgage measurement that was used was from early April 2018 and is an estimate of the groundwater altitudes at the gage location. The resultant potentiometric-surface contours and raster represents the generalized central tendency for spring 2018, but it would not be useful for some purposes, such as for calibration of a groundwater-flow model for early...
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This data set contains two sets of water-level contours that represent interpreted water-levels for an area between the Platte and Elkhorn Rivers just above their confluence. The contours are informed by surface-water and groundwater-level data collected during the fall of 2016 during synoptic water-level survey completed during a low-groundwater demand period and a summer 2017 synoptic water-level survey completed during a high-groundwater demand period. The additional data and interpretations provided with this data set and the larger data release are intended to inform water managers of the effect flow conditions on groundwater movement and interaction with surface-water above the confluence of the lower Platte...
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The High Plains aquifer extends from approximately 32 to 44 degrees north latitude and 96 degrees 30 minutes to 106 degrees west longitude. The aquifer underlies about 175,000 square miles in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming. This digital dataset consists of a raster of water-level changes for the High Plains aquifer, predevelopment (about 1950) to 2017. It was created using water-level measurements from 2,928 wells measured in both the predevelopment period (about 1950) and in 2017, the latest available static water level measured in 2013 to 2016 from 63 wells in New Mexico and using other published information on water-level change in areas with few water-level...
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A potentiometric surface map for spring 2016 was created for the Mississippi River Valley alluvial (MRVA) aquifer, which was referenced to the North American Vertical Datum of 1988 (NAVD 88), using most of the available groundwater-altitude data from wells and surface-water-altitude data from streamgages. Most of the wells were measured annually or one time, after installation, but some wells were measured more than one time in a year and a small number of wells were measured continually. Streamgages were typically operated continuously. The potentiometric surface map for 2016 was created as part of the U.S. Geological Survey (USGS) Water Availability and Use Science Program to support investigations that characterize...
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This dataset contains groundwater (GW)-altitude (ALT) data from wells that was used or considered to create a potentiometric-surface map for the Mississippi River Valley alluvial (MRVA) aquifer for spring 2018. The groundwater-altitude data was referenced to the North American Vertical Datum of 1988 (NAVD 88). Most of the wells were measured annually, but some wells were measured more than one time in a year and a small number of wells were measured continuously. Groundwater-altitude data were from wells measured in spring 2018. Spring-time measurements were preferred because water levels had generally recovered from pumping during the previous irrigation season and it was before pumping began for the current irrigation...
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This dataset includes a grid raster and contour line file representing the estimated altitude of the top of the Pennsylvanian-age units in western Sarpy County, Nebraska. This dataset was developed as part of a cooperative study between the PMRNRD and USGS which began in 2017. The goal of this study was to develop a hydrogeologic visualization model of western Sarpy County using GeoScene3D. In 2016, the Papillion-Missouri River Natural Resources District (PMRNRD) contracted airborne electromagnetic surveys (AEM) of the area to be completed to better understand the stratigraphy and hydrogeology of the western Sarpy County area. The PMRNRD determined that they wanted to incorporate the AEM data into a visualization...
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This data set contains two sets of measured water-level data collected on and near Offutt Air Force Base near Bellevue, Nebraska. Surface-water and groundwater-level data were collected for two synoptic water-level surveys completed in late summer of 2020 and in spring 2021. The elevations of surface-water features were surveyed with a rover receiver using a real-time network (RTN), where the rover receiver receives real-time position corrections from a central server through a mobile wireless-fidelity (Wi-Fi) hotspot linked to the rover receiver. Data collection procedures ensured that positions and elevations achieved a U.S. Geological Survey (USGS) Level-III survey accuracy and surveyed surface-water elevations...
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The U.S. Geological Survey (USGS) Water Resources Mission Area (WMA) is working to address a need to understand where the Nation is experiencing water shortages or surpluses relative to the demand by delivering routine assessments of water supply and demand. A key part of these national assessments is identifying long-term trends in water availability, including groundwater and surface water quantity, quality, and use. This data release contains Mann-Kendall monotonic trend analyses for annual groundwater metrics at 39,964 wells located in the conterminous United States, Alaska, Hawaii, and Puerto Rico. The groundwater metrics include annual mean, maximum, and minimum water level and the timing of the annual...
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This data set contains two sets of measured water-level data collected in an area between the Platte and Elkhorn Rivers just above their confluence. Surface-water and groundwater-level data were collected during the fall of 2016 during synoptic water-level survey completed during a low-groundwater demand period and a summer 2017 synoptic water-level survey completed during a high-groundwater demand period. The elevations of surface-water features were surveyed with a rover receiver using a real-time network, where the rover receiver receives real-time position corrections from a central server through a mobile wireless fidelity (Wi-Fi) hotspot linked to the rover receiver. Data collection procedures ensured that...
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The High Plains aquifer extends from approximately 32 to 44 degrees north latitude and 96 degrees 30 minutes to 106 degrees west longitude. The aquifer underlies about 175,000 square miles in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming. This dataset consists of a raster of estimated water-level changes for the High Plains aquifer from pre-irrigation season 2017 to pre-irrigation season 2019. This digital dataset was created using water-level measurements from 7,195 wells measured in both 2017 and 2019. The map was reviewed for consistency with the relevant data at a scale of 1:1,000,000. Negative raster-cell values correspond to decline in water level and positive...
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The Mississippi Alluvial Plain (MAP) is one of the most important agricultural regions in the United States and underlies about 32,000 square miles of Missouri, Kentucky, Tennessee, Mississippi, Louisiana, and Arkansas. The MAP region supports a multibillion-dollar agricultural industry. The MAP is part of the Mississippi Embayment with several water-bearing units that make up the Mississippi Embayment Regional Aquifer System (MERAS). These water bearing units include the Mississippi River Valley Alluvial aquifer, Claiborne aquifers and Wilcox aquifers. In northeastern Arkansas, the Cache area has been designated as a critical groundwater areas because of decades of groundwater declines that resulted from past and...
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A potentiometric surface map for spring 2016 was created for the Mississippi River Valley alluvial (MRVA) aquifer, which was referenced to the North American Vertical Datum of 1988 (NAVD 88), using most of the available groundwater-altitude data from wells and surface-water-altitude data from streamgages. Most of the wells were measured annually or one time, after installation, but some wells were measured more than one time in a year and a small number of wells were measured continually. Streamgages were typically operated continuously. The potentiometric surface map for 2016 was created as part of the U.S. Geological Survey (USGS) Water Availability and Use Science Program to support investigations that characterize...


map background search result map search result map Water-levels along the Lower Platte and Lower Elkhorn Rivers, Nebraska, 2016-2017 Water-level contours along the Lower Platte and Lower Elkhorn Rivers, Nebraska, 2016-2017 (c) Surface-water altitude data, from streamgages, considered for the potentiometric surface map, Mississippi River Valley alluvial aquifer, spring 2016 (e1) Potentiometric surface, Mississippi River Valley alluvial aquifer, spring 2016, raster format, in feet b_Surface_WaterPts Surface-water-altitude data, from streamgages, considered for the potentiometric-surface map, Mississippi River Valley alluvial aquifer, spring 2018 d1_Pot2018RasterFt Potentiometric surface, Mississippi River Valley alluvial aquifer, spring 2018, raster format, in feet a_GroundwaterPts Groundwater-altitude data, from monitoring-networks wells, considered for the potentiometric-surface map, Mississippi River Valley alluvial aquifer, spring 2018 F04_wlc161820_Water-level change, spring to spring, 2016-18, 2018-20, 2016-20, Mississippi River Valley alluvial aquifer, in feet F01_hpwlcpd17t_Spatial data set of mapped water-level changes in the High Plains aquifer, predevelopment (about 1950) to 2017 F05_hpwlcp1517pt Water-level change data used to map water-level changes in the High Plains aquifer, 2015 to 2017 F01_d2w2016 Depth to water, spring 2016, Mississippi River Valley alluvial aquifer, raster format, in feet F03_d2w2020_Depth to water, spring 2020, Mississippi River Valley alluvial aquifer, raster format, in feet Water-surface and groundwater-level elevations on and near Offutt Air Force Base, Nebraska, summer 2020 and spring 2021 MODFLOW-One-Water model used to support the Central Platte Natural Resources District Groundwater Management Plan Estimated altitude of the top of the Pennsylvanian-age units in western Sarpy County, Nebraska Interpolated groundwater-levels, western Sarpy County, eastern Nebraska F01_hpwicpd19t_Raster dataset of mapped water-level changes in the High Plains aquifer, predevelopment (about 1950) to 2019 F04_hpwlc1719t_Raster dataset of mapped water-level changes in the High Plains aquifer, 2017 to 2019 Cache groundwater-flow model Long-term monotonic trends in annual groundwater metrics in the United States through 2020 Water-surface and groundwater-level elevations on and near Offutt Air Force Base, Nebraska, summer 2020 and spring 2021 Interpolated groundwater-levels, western Sarpy County, eastern Nebraska Estimated altitude of the top of the Pennsylvanian-age units in western Sarpy County, Nebraska Water-level contours along the Lower Platte and Lower Elkhorn Rivers, Nebraska, 2016-2017 Water-levels along the Lower Platte and Lower Elkhorn Rivers, Nebraska, 2016-2017 Cache groundwater-flow model MODFLOW-One-Water model used to support the Central Platte Natural Resources District Groundwater Management Plan a_GroundwaterPts Groundwater-altitude data, from monitoring-networks wells, considered for the potentiometric-surface map, Mississippi River Valley alluvial aquifer, spring 2018 b_Surface_WaterPts Surface-water-altitude data, from streamgages, considered for the potentiometric-surface map, Mississippi River Valley alluvial aquifer, spring 2018 (c) Surface-water altitude data, from streamgages, considered for the potentiometric surface map, Mississippi River Valley alluvial aquifer, spring 2016 (e1) Potentiometric surface, Mississippi River Valley alluvial aquifer, spring 2016, raster format, in feet F04_wlc161820_Water-level change, spring to spring, 2016-18, 2018-20, 2016-20, Mississippi River Valley alluvial aquifer, in feet F01_d2w2016 Depth to water, spring 2016, Mississippi River Valley alluvial aquifer, raster format, in feet F03_d2w2020_Depth to water, spring 2020, Mississippi River Valley alluvial aquifer, raster format, in feet d1_Pot2018RasterFt Potentiometric surface, Mississippi River Valley alluvial aquifer, spring 2018, raster format, in feet F05_hpwlcp1517pt Water-level change data used to map water-level changes in the High Plains aquifer, 2015 to 2017 F01_hpwlcpd17t_Spatial data set of mapped water-level changes in the High Plains aquifer, predevelopment (about 1950) to 2017 F01_hpwicpd19t_Raster dataset of mapped water-level changes in the High Plains aquifer, predevelopment (about 1950) to 2019 F04_hpwlc1719t_Raster dataset of mapped water-level changes in the High Plains aquifer, 2017 to 2019 Long-term monotonic trends in annual groundwater metrics in the United States through 2020