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Reconnaissance of Per- and Polyfluoroalkyl Substances (PFAS) in Selected Groundwater and Surface Water Sites in McHenry County, Illinois, 2020 Data were collected at 19 groundwater monitoring wells and 3 surface water locations across McHenry County, Illinois, in 2020 by staff from the U.S. Geological Survey (USGS) Central Midwest Water Science Center. Quality control samples (2 blanks and 1 replicate) were also collected to assess data reliability and precision. Samples were submitted to the USGS National Water Quality Laboratory in Denver, Colorado, and analyzed for per- and polyfluoroalkyl (PFAS) substances in late 2022 and results provided in April of 2023. PFAS were detected in 16 of the 19 groundwater monitoring wells and in all 3 surface water sites sampled. Tags: Illinois, McHenry County, PFAS, USGS Science Data Catalog (SDC), Water Quality, All tags... Water Resources, contamination and pollution, environment, groundwater quality, surface water quality, Fewer tags Adirondack New York soil chemistry data, 1992-2017 (ver. 1.1, December 2020) This dataset contains measurements of chemical concentrations of soil samples representing 28 headwater drainage basins completely within the Adirondack Park of New York State (ADK Park), one basin partially in the ADK Park, and one watershed 2 kilometers from the ADK Park boundary. Seven of these watersheds have been sampled 2 or 3 times over periods of 12 to 22 years. Soil samples were collected from pit faces exposed by shoveling. Total mass of organic matter, carbon and nitrogen in the forest floor are also presented for 16 headwater drainage basins in the ADK Park. Forest floor mass data were determined from samples collected with soil corers. The presented data are organized by six projects: the Adirondack... Categories: Data, Data Release - Revised; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Adirondack Park, Adirondack Park, New York, Ambient Monitoring, B horizon, B horizon, All tags... Biogeochemical and Hydrologic Assessment, Ecological Assessment of Human and Natural Impacts, Ecosystem Health, New York, New York, Oa horizon, Oa horizon, Oe horizon, Oe horizon, Soils, USGS Science Data Catalog (SDC), acidic deposition recovery, acidic deposition recovery, forest floor, forest floor, forest soils, forest soils, loss on ignition, loss on ignition, mineral soil, mineral soil, soil acidity, soil acidity, soil aluminum, soil aluminum, soil calcium, soil calcium, soil carbon, soil carbon, soil change, soil change, soil chemistry, soil chemistry, soil horizons, soil horizons, soil magnesium, soil magnesium, soil nitrogen, soil nitrogen, soil organic matter, soil organic matter, soil pH, soil pH, soil profile description, soil profile description, soil science, soil science, soil sodium, soil sodium, soils data, soils data, Fewer tags Lower Salinas Valley Hydrologic Models: Agricultural and Municipal Water Supply and Groundwater Data (ver. 2.0, November 2023) This digital dataset contains the surface water operational data used for the Salinas Valley Operational Model (SVOM) including the time series data and the operational rules. While much of the input data is shared between the Salinas Valley Operational Model (SVOM) and the Salinas Valley Integrated Hydrologic Model (SVIHM), the SVOM has additional input data specific to the purpose and function of the model. This digital dataset contains the datasets related to agricultural and municipal water supply and groundwater in the Lower Salinas Valley Hydrologic Models, including the Salinas Valley Operational Model (SVOM) and the Salinas Valley Integrated Hydrologic Model (SVIHM). Groundwater inflow and outflow data include... Categories: Data, Data Release - Revised; Tags: California, Monterey County, Salinas, San Luis Obispo County, USGS Science Data Catalog (SDC), All tags... environment, hydrology, inlandWaters, streamflow, surface water (non-marine), water resources management, watershed management, Fewer tags Elevation, Flow Accumulation, Flow Direction, and Stream Definition Data in Support of the Illinois StreamStats Upgrade to the Basin Delineation Database The U.S. Geological Survey (USGS), in cooperation with the Illinois Center for Transportation and the Illinois Department of Transportation, prepared hydro-conditioned geographic information systems (GIS) layers for use in the Illinois StreamStats application. These data were used to delineate drainage basins and compute basin characteristics for updated peak flow and flow duration regression equations for Illinois. This dataset consists of raster grid files for elevation (dem), flow accumulation (fac), flow direction (fdr), and stream definition (str900) for each 8-digit Hydrologic Unit Code (HUC) area in Illinois merged into a single dataset. There are 51 full or partial HUC 8s represented by this data set: 04040002,... Tags: Geography, Hydrology, Illinois, Indiana, Michigan, All tags... USGS Science Data Catalog (SDC), Wisconsin, environment, geoscientificInformation, geospatial datasets, hydrology, land surface characteristics, streamflow, topography, watershed management, Fewer tags Single-beam bathymetric survey of the French Broad River near the Interstate 26 bridge located south of Asheville, NC – December 2021, Mid-Construction #3 In January 2020, the North Carolina Department of Transportation (NCDOT) began work on the Interstate 26 (I 26) highway widening project that involves a bridge crossing over the French Broad River (FBR) near Asheville, North Carolina. The U.S Geological Survey (USGS) in cooperation with the NCDOT conducted a pre-construction bathymetric survey of the streambed in June 2019 (Whaling and Wagner, 2021) within a one-kilometer reach of the FBR at the bridge construction site. A canoe-based repeat bathymetric survey was collected with a single-beam echosounder approximately 23 months after construction began, with the purpose to monitor geomorphological changes to the streambed and inform the NCDOT of potential impacts... Tags: Asheville, Buncombe County, Geomorphology, North Carolina, Single-beam echosounder, All tags... USGS Science Data Catalog (SDC), XYZ, bathymetry, elevation, geomorphology, inlandWaters, Fewer tags Single-beam bathymetric survey of the French Broad River near the Interstate 26 bridge located south of Asheville, NC – June 2021, Mid-Construction #2 In January 2020, the North Carolina Department of Transportation (NCDOT) began work on the Interstate 26 (I 26) highway widening project that involves a bridge crossing over the French Broad River (FBR) near Asheville, North Carolina. The U.S Geological Survey (USGS) in cooperation with the NCDOT conducted a pre-construction bathymetric survey of the streambed in June 2019 (Whaling and Wagner, 2021) within a one-kilometer reach of the FBR at the bridge construction site. A canoe-based repeat bathymetric survey was collected with a single-beam echosounder approximately 18 months after construction began, with the purpose to monitor geomorphological changes to the streambed and inform the NCDOT of potential impacts... Tags: Asheville, Buncombe County, Geomorphology, North Carolina, Single-beam echosounder, All tags... USGS Science Data Catalog (SDC), XYZ, bathymetry, elevation, geomorphology, inlandWaters, Fewer tags Measurements of mercury stable isotopes during planktonic uptake and photochemical demethylation of methylmercury Laboratory experiments were performed between 2019 and 2020 to examine how dissolved organic matter (DOM) and phytoplankton (Raphidocelis subcapitata) cells alter mercury (Hg) uptake and isotope fractionation. Experiments were performed at ambient Hg to thiol ratios using natural organic matter isolates received from collaborators at the University of California-Davis. Two types of experiments were performed: (1) one set with SRFA isolates at two concentrations and Hg, termed uptake experiment, and (2) one set with DOM isolates, Hg, and cultured Raphidocelis subcapitata cells, termed sunlight exposure experiment. For additional experimental details, including culturing conditions, experimental set-up, and analysis,... Categories: Data; Tags: Aquatic Biology, USGS Science Data Catalog (SDC), Water Quality, freshwater ecosystems, isotope geochemistry, All tags... mercury analysis, mercury contamination, Fewer tags Four-kilometer long-term regional hydroclimate reanalysis over the conterminous United States (CONUS), 1979-2020 Introduction CONUS404 is a unique, high-resolution hydro-climate dataset appropriate for forcing hydrological models and conducting meteorological analysis over the contiguous United States. CONUS404, so named because it covers the CONtiguous United States for 40 years at 4-km resolution, was produced by the Weather Research and Forecasting (WRF) Model simulations run by National Center for Atmospheric Research (NCAR) as part of a collaboration with the U.S. Geological Survey (USGS) Water Mission Area. In fact, CONUS404 includes 41 years of data (water years 1980-2020) and the spatial domain extends beyond the CONUS into Canada and Mexico, thereby capturing transboundary river basins and covering all contributing... Categories: Data; Tags: Climatology, HPC ARC, Hydrology, USGS Science Data Catalog (SDC), Water Resources, All tags... high resolution climate simulation, hydroclimate, hydrology, inlandWaters, precipitation, regional climate model, weather research and forecast model, Fewer tags MODFLOW 6 models for simulating groundwater flow and a proposed remediation system in the sole-source aquifer system in southeastern Nassau County, New York This model archive contains files for a set of groundwater flow, particle tracking, and management optimization models that simulate the area around the Navy-Northrop-Grumman contamination plume on Long Island, New York. These models were developed as in insets from the Long Island Regional “parent” Model, from which perimeter boundary conditions were inherited. In addition to input and output files for these models, this archive contains the modeling workflow python code and source data used to build the model. These materials have been included for repeatability and decision transparency. Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bethpage, Groundwater, Hydrology, Long Island, Long Island West, All tags... MODFLOW 6, MODPATH 7, Nassau County, New York, Oyster Bay, PEST++, USGS Science Data Catalog (SDC), United States, Water Quality, decision support methods, groundwater, groundwater flow, groundwater quality, hydrogeology, mathematical modeling, model, modflow6, modpath7, numerical modeling, optimization, pest++, public supply water use, remediation, usgsgroundwatermodel, water availability, Fewer tags CE-QUAL-W2 models for the Willamette River and major tributaries downstream of U.S. Army Corps of Engineers dams: 2011, 2015, and 2016 (version 1.1, December 2023) In the Willamette River Basin in northwestern Oregon, stream temperature has been altered by 13 dams operated by the U.S. Army Corps of Engineers (USACE), negatively influencing threatened populations of native salmonids. CE-QUAL-W2, a two-dimensional, hydrodynamic water quality model, has been used to investigate temperature and heat patterns in the Willamette River and the downstream effects of dam operations and other anthropogenic effects on heat and stream temperature. This data release includes the input and output files for six CE-QUAL-W2 models that include Fall Creek downstream of Fall Creek Dam, the Row River downstream of Dorena Dam, the Coast Fork Willamette River downstream of Cottage Grove Dam, the... Categories: Data Release - Revised; Tags: Benton County, CE-QUAL-W2 model, Clackamas County, Coast Fork Willamette River, Fall Creek, All tags... Hydrology, Lane County, Linn County, Marion County, McKenzie River, Middle Fork Willamette River, North Santiam River, Oregon, Polk County, Row River, South Fork McKenzie River, South Santiam River, USGS Science Data Catalog (SDC), Water Quality, Water Resources, Willamette River, Yamhill County, environment, inlandWaters, surface water quality, water temperature, Fewer tags Single-beam bathymetric survey of the French Broad River near the Interstate 26 bridge located south of Asheville, NC – June 2022, Mid-Construction #4 In January 2020, the North Carolina Department of Transportation (NCDOT) began work on the Interstate 26 (I 26) highway widening project that involves a bridge crossing over the French Broad River (FBR) near Asheville, North Carolina. The U.S Geological Survey (USGS) in cooperation with the NCDOT conducted a pre-construction bathymetric survey of the streambed in June 2019 (Whaling and Wagner, 2021) within a one-kilometer reach of the FBR at the bridge construction site. A canoe-based repeat bathymetric survey was collected with a single-beam echosounder approximately 30 months after construction began, with the purpose to monitor geomorphological changes to the streambed and inform the NCDOT of potential impacts... Tags: Asheville, Buncombe County, Geomorphology, North Carolina, Single-beam echosounder, All tags... USGS Science Data Catalog (SDC), XYZ, bathymetry, elevation, geomorphology, inlandWaters, Fewer tags Geographic Data for the Estimation of Peak Flow Statistics for Illinois The U.S. Geological Survey Central Midwest Water Science Center completed a report (Over and others, 2023) documenting methods, results, and applications of an updated flood-frequency study for the State of Illinois. The study developed regional regression equations that relate the peak-flow quantiles and the basin characteristics of selected streamgages in Illinois, Indiana, and Wisconsin, based on data through water year 2017 (a water year is the period from October 1 to September 30 and is designated by the year in which it ends; for example, water year 2017 was from October 1, 2016, to September 30, 2017). The data provided through this data release are those digital datasets of basin characteristics that have... Tags: Basin Characteristics, Delineated Basins, Drainage area, Floods, Hydrology, All tags... Hydrology, Illinois, Indiana, Regression Analysis, Slope, Soil slope, Stream Discharge, Streamflow, Streamstats, Texture permeability index, USGS Science Data Catalog (SDC), Urbanization, Water Resources, Wisconsin, Fewer tags Single-beam bathymetric survey of the French Broad River near the Interstate 26 bridge south of Asheville, NC – December 2020, Mid-Construction #1 In January 2020, the North Carolina Department of Transportation (NCDOT) began work on the Interstate 26 (I 26) highway widening project that involves a bridge crossing over the French Broad River (FBR) near Asheville, North Carolina. The U.S Geological Survey (USGS) in cooperation with the NCDOT conducted a pre-construction bathymetric survey of the streambed in June 2019 (Whaling and Wagner, 2021) within a one-kilometer reach of the FBR at the bridge construction site. A canoe-based repeat bathymetric survey was collected with a single-beam echosounder approximately 11 months after construction began, with the purpose to monitor geomorphological changes to the streambed and inform the NCDOT of potential impacts... Tags: Asheville, Buncombe County, Geomorphology, North Carolina, Single-beam echosounder, All tags... USGS Science Data Catalog (SDC), XYZ, bathymetry, elevation, geomorphology, inlandWaters, Fewer tags