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Datasets used in constructing hydrologic budgets for six bedrock aquifers in the Black Hills area of South Dakota and Wyoming, 1931–2022 Datasets used in constructing hydrologic budgets for six bedrock aquifers in the Black Hills area of South Dakota and Wyoming, 1931–2022
Population growth and recurring droughts in the Black Hills region of western South Dakota and eastern Wyoming raised concerns regarding water resources and its future availability. Drought conditions in the late 1980s and the early 2000s stressed local water systems relying heavily on surface water as the population of the region was increasing. In response to water-availability...
Sediment chemistry in nearshore Bellingham Bay, urban creeks and the Nooksack River, Puget Sound, Washington, March and September 2019 Sediment chemistry in nearshore Bellingham Bay, urban creeks and the Nooksack River, Puget Sound, Washington, March and September 2019
Concentrations of individual polychlorinated biphenyl (PCB) congeners, polycyclic aromatic hydrocarbons (PAHs), and chlorinated pesticides are reported for surface sediments collected along the nearshore of Bellingham Bay, the Nooksack River, and four urban creeks discharging to Bellingham Bay in March 2019. Additional samples were collected along the nearshore urban waterfront corridor...
Cladophora biomass and supporting data collected in the Great Lakes, 2024 (ver. 2.0, February 2026) Cladophora biomass and supporting data collected in the Great Lakes, 2024 (ver. 2.0, February 2026)
This dataset records Cladophora and associated benthic algae, collectively the Cladophora community or submerged aquatic vegetation (SAV), biomass collected during the growing season of 2024 at stations located along the U.S. shoreline of Lakes Michigan, Huron, Erie, and Ontario. It also records a variety of supporting data collected at Cladophora measurement stations. These supporting...
Hydrogeologic provinces of the conterminous United States Hydrogeologic provinces of the conterminous United States
This data release contains shapefiles of the hydrogeologic provinces of the conterminous United States. The United States Geological Survey (USGS) is developing a National Extent Hydrogeologic Framework (NEHF). In support of that effort, the conterminous United States was subdivided into eight hydrogeologic provinces that are generally based on geologic provinces and subprovinces...
Investigation of Red Swamp Crayfish (Procambarus clarkii) Burrowing Behavior Investigation of Red Swamp Crayfish (Procambarus clarkii) Burrowing Behavior
This study used artificial burrowing chambers to investigate the effects of groundwater drainage rates and soil type on burrow initiation and morphology of red swamp crayfish (Procambarus clarkii). The relationship between caloric density of crayfish and burrowing was also examined. The objectives of this study were to (1) determine the effect of ground water drainage rates on burrowing...
Polyaromatic Hydrocarbon Data for Oil Samples from the Bemidji Oil Spill Research Site, 1987-2020 Polyaromatic Hydrocarbon Data for Oil Samples from the Bemidji Oil Spill Research Site, 1987-2020
The USGS is conducting a long-term study of a terrestrial crude oil spill that resulted from a ruptured pipeline in 1979. Samples of oil bailed from wells were analyzed for polyaromatic hydrocarbons by a commercial lab. A total of 32 samples were analyzed in three batches. A sample that serves as a surrogate for the original spilled oil was submitted with each batch. For each oil sample
High-resolution land cover mapping along the Atlantic and Gulf coasts to enhance hurricane coastal impact models High-resolution land cover mapping along the Atlantic and Gulf coasts to enhance hurricane coastal impact models
To enhance hurricane coastal impact models, we developed 1-m land cover maps for the coastal portions of states along the Gulf of America and Atlantic coasts using recent (2018–2020) high-resolution orthoimagery and moderate-resolution land cover maps. Our first step was to develop land cover maps with three classes (vegetated, unvegetated, water) using recently acquired 1-m orthoimagery...
Geospatial Datasets of Factors Influencing Groundwater Emergence Flood Hazard in Long Island, New York and near Coastal Areas Surrounding Long Island Sound in New York, Connecticut, and Rhode Island Geospatial Datasets of Factors Influencing Groundwater Emergence Flood Hazard in Long Island, New York and near Coastal Areas Surrounding Long Island Sound in New York, Connecticut, and Rhode Island
This data release contains raster datasets representing depth to water table, calculated from steady-state groundwater models developed by the U.S. Geological Survey (Jahn and others, 2024; Barclay and others, 2024). The depth to water table rasters are available at an approximate resolution of 10 meters. In addition, depth to water table, hydrologic soil types, and landcover are...
Geochemical, environmental, and quality assurance data for springs in eastern Oregon and northern Nevada Geochemical, environmental, and quality assurance data for springs in eastern Oregon and northern Nevada
This data release contains field and geochemical data, discharge measurements, and descriptive observations for 261 springs in eastern Oregon and northern Nevada. Data were collected during water years 2016–2023. The data release also includes quality assurance analyses and the results of a logistic model documented in the accompanying study report (Johnson, in review).
Contour Dataset of the Potentiometric Surfaces of Shallow and Deep Groundwater-Level Altitudes in the Walla Walla River Basin, Oregon and Washington, January–April 2021 Contour Dataset of the Potentiometric Surfaces of Shallow and Deep Groundwater-Level Altitudes in the Walla Walla River Basin, Oregon and Washington, January–April 2021
This dataset contains manually developed 50-, 100-, and 500-ft contours depicting shallow and deep potentiometric-surface maps for the Walla Walla River Basin aquifer system, Oregon and Washington. The potentiometric surfaces show altitude at the water-table throughout the region (shallow) and at which the water level would have risen in tightly-cased wells beneath the basin-fill...
Louisiana Barrier Island Comprehensive Monitoring Program – 2021 habitat map, East Chenier Region Louisiana Barrier Island Comprehensive Monitoring Program – 2021 habitat map, East Chenier Region
The Barrier Island Comprehensive Monitoring (BICM) program was developed by Louisiana’s Coastal Protection and Restoration Authority (CPRA) and is implemented as a component of the System Wide Assessment and Monitoring Program (SWAMP). The program uses both historical data and contemporary data collections to assess and monitor changes in the aerial and subaqueous extent of islands...
Louisiana Barrier Island Comprehensive Monitoring Program – 2021 habitat map, Acadiana Bays Region Louisiana Barrier Island Comprehensive Monitoring Program – 2021 habitat map, Acadiana Bays Region
The Barrier Island Comprehensive Monitoring (BICM) program was developed by Louisiana’s Coastal Protection and Restoration Authority (CPRA) and is implemented as a component of the System Wide Assessment and Monitoring Program (SWAMP). The program uses both historical data and contemporary data collections to assess and monitor changes in the aerial and subaqueous extent of islands...