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Storm Event Dissolved Organic Carbon and Total Dissolved Nitrogen Concentrations and Yields for Precipitation, Throughfall, Stemflow, and Stream Water and Hourly Streamflow and Precipitation Record for the W-9 Catchment, Sleepers River Research Watershed, 2017 and 2018 (ver. 2.0, September 2022) This dataset describes water yields for precipitation, throughfall, and stemflow for 22 rain events within the 40.5-hectare (ha) forested W-9 catchment at Sleepers River, Vermont. Sampling occurred during the summer and fall of 2018. Dissolved organic carbon (DOC) and total dissolved nitrogen (TDN) concentrations are reported for each sampled event. The dataset also includes 5-minute catchment normalized runoff and the hourly precipitation record for 2017 and 2018 calendar years. Stream water chemistry for DOC and TDN are also included. Major ions and spectroscopic properties are also reported. First posted May 17, 2021, ver. 1.0 Revised September 2022, ver. 2.0 Categories: Data, Data Release - Revised; Tags: Dissolved organic carbon, Precipitation, Sleepers River Research Watershed, Stemflow, Throughfall, All tags... USGS Science Data Catalog (SDC), Fewer tags Physical and Chemical Data to Characterize Water-Quality Conditions in the Sakonnet River, Rhode Island, 2018-2019 Physical and chemical data were collected to characterize water-quality conditions in the Sakonnet River, a tidal strait located on the east side of Narragansett Bay in Rhode Island, from April 28 to November 11, 2018 and from June 19 to November 26, 2019. Specifically, the 2018 information in this data release includes: vertical profiles of water quality from 16 to 18 locations and data collected from three surface spatial surveys (moving boat surveys) designed to characterize near-surface water-quality conditions in the river. Temperature, pH, specific conductance, salinity, dissolved oxygen concentration and saturation, turbidity, and chlorophyll a data were collected with calibrated water-quality sensors. Water-quality... Categories: Data; Tags: Ecology, Hydrology, Little Compton, Middletown, Portsmouth, All tags... Rhode Island, Sakonnet River, Tiverton, USGS Science Data Catalog (SDC), Water Quality, Water Resources, marine ecosystems, oxygen content (water), profiles, spatial analysis, water quality, Fewer tags Geochemical Data Supporting Analysis of Fate and Transport of Nitrogen in the Nearshore Groundwater and Subterranean Estuary near East Falmouth, Massachusetts, 2015-2016 Geochemical data were obtained to investigate the fate and transport of nitrogen in a subterranean estuary near East Falmouth, Massachusetts. The goal of this investigation was to assess nitrogen attenuation in the aquifer under the Eel River Estuary and the adjacent peninsula that was densely populated with residences having septic systems and legacy cesspool inputs of inorganic nitrogen. This estuary is one of many small embayments on Cape Cod where nutrient enrichment can lead to eutrophication and is a major concern for water-quality impairment. Groundwater water-quality data were collected from 3 transects from a total of 27 locations that were sampled between November 2015 and October 2016. Samples were... Categories: Data; Tags: Cape Cod, Massachusetts, Eel River, Massachusetts, Sea Coast Shores, East Falmouth, Massachusetts, USGS Science Data Catalog (SDC), Water Quality, All tags... biogeochemical cycling, geochemical processes, groundwater flow, groundwater level, groundwater quality, nutrient cycling, Fewer tags Flood frequency and source data used in the regional regression analysis of annual peak flows in Connecticut (2020) (ver. 2.0, April 2021) Current estimates of the magnitude and frequency of floods at gaged and ungaged stream sites are critical for assessing flood risk, delineating flood zones, designing hydraulic structures, and managing flood plains. The Connecticut Department of Transportation collaborated with U.S. Geological Survey (USGS) in a study to improve the flood-frequency estimates in Connecticut and develop regional regression equations for estimating annual exceedance probability discharges at ungaged sites in Connecticut. The results of the study are found in Scientific Investigations Report (http://doi.org/10.3133/sir20205054). This companion data release consists of data compiled and used for the flood-frequency analysis of annual... Categories: Data, Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Connecticut, Massachusetts, New York, Rhode Island, USGS Science Data Catalog (SDC), All tags... annual exceedance probability discharges, flood frequency, peak flows, regional regression equation, Fewer tags Discrete water-quality data supporting Herring River restoration project, Cape Cod National Seashore, 1984-2017 Staff from the Cape Cod National Seashore, National Park Service (CACO NPS) began limited water-quality data collection in the Herring River Estuary as early as 1984. In 2006 a monthly sampling program was established for 14 sites to monitor nutrient concentrations, dissolved oxygen, and other constituents. This monitoring program is ongoing and has been supplemented with data from other CACO NPS projects and cooperative monitoring with the U.S. Geological Survey. With the anticipated restoration of the estuary, which has been diked off from the ocean for over 100 years, these data are critical in supporting the characterization of pre-restoration water quality. The data collected in the estuary from 1984-2017 have... Categories: Data; Tags: Barnstable, Cape Cod, Massachusetts, USGS Science Data Catalog (SDC), Water Quality, All tags... environment, estuary, wetland restoration, Fewer tags Five-minute discharge; daily precipitation, stream runoff, and maximum and minimum air temperature; and annual precipitation and runoff for W-9 catchment, Sleepers River Research Watershed near Danville, Vermont, 1991-2018 This data release supports publications on the Sleepers River Research Watershed near Danville, Vermont. Most of the research at Sleepers River takes place at W-9, the 40.5-hectare forested headwater site. Topics include understanding hydrologic flow paths, biogeochemical cycling, and organic carbon dynamics. Flow and precipitation data are integral to understanding these processes, for example by combining flow and chemical concentrations to compute solute export from the catchment. These records begin in late September 1991 and extend through calendar year 2018. The release includes five-minute data for discharge, daily data for precipitation, runoff,and maximum and minimum air temperature, and an annual tabulation... Categories: Data; Tags: Climatology, Sleepers River, Sleepers River, USGS Science Data Catalog (SDC), Vermont, All tags... Water Resources, air temperature, biogeochemistry, catchment science, hydrological processes, precipitation, runoff, Fewer tags The probability of obtaining 40 gallons of water per minute from a 400-foot-deep well in New Hampshire This geographic raster dataset presents statistical model predictions for the probability of exceeding 40 gallons per minute well yield from a 400 foot deep well, and is based on the available data. The model was developed as part of the New Hampshire Bedrock Aquifer Assessment. The New Hampshire Bedrock Aquifer Assessment was designed to provide information (including this raster) that can be used by communities, industry, professional consultants, and other interests to evaluate the ground-water development potential of the fractured-bedrock aquifer in the State. The assessment was done at statewide, regional, and well field scales to identify relations that potentially could increase the success in locating high-yield... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: New Hampshire, geoscientificInformation, well yield, probability Results of peak-flow frequency analysis and regionalization for selected streamgages in or near Maine, based on data through water year 2019 (ver. 3.0, August 2021) The U.S. Geological Survey (USGS) recently completed a report documenting methods for peak-flow frequency analysis following implementation of the Bulletin 17C guidelines (https://doi.org/10.3133/tm4B5). The methods provide estimates of peak-flow quantiles for 50-, 20-, 10-, 4-, 2-, 1-, 0.5-, and 0.2-percent annual exceedance probabilities (AEPs) for selected streamgages operated by the USGS and Environment Canada. In association with the report, this data release presents peak-flow frequency analyses for 148 streamgages (127 stations in Maine, 16 in New Hampshire, and 5 in New Brunswick, Canada). Included are 148 individual ".PRT" text files that contain results of the flood-frequency analyses of annual peak flows... Categories: Data; Tags: Maine, PeakFQ, USGS Science Data Catalog (SDC), flood frequency, peak flows, All tags... regionalization, Fewer tags Confirmatory Sampling for Per- and Polyfluoroalkyl Substances (PFAS) in Shallow Soils Across New Hampshire, 2022 Data for per- and polyfluoroalkyl substances (PFAS) and related chemical and physical characteristics are presented from 30 soil sampling locations within the State of New Hampshire. A total of 15 sites were chosen based on the results of sampling efforts published in Santangelo and others(2022). Sites with relatively high concentrations of PFAS observed during the first study were selected for resampling to better understand the range of concentrations of PFAS in the area. At each of the 15 sites, soil samples were collected as near to the original site as possible (site A), and a second set of soil samples were collected at a secondary location (site B) 50 to 600 feet away from the original location for a total... Categories: Data; Tags: Environmental Health, New Hampshire, PFAS, Soil Sciences, USGS Science Data Catalog (SDC), All tags... environment, soil chemistry, soil sciences, Fewer tags Field measurements of lake-bottom seepage rates from seepage meters at five groundwater flow-through glacial kettle lakes, western Cape Cod, Massachusetts, August–September 2015 This data set summarizes measurements of water flux (specific discharge, or Darcy flux, q) made with seepage meters at 27 sites in five ponds on western Cape Cod during August–September 2015. The seepage meters consisted of the cut-off ends of 55-gallon steel drums, as described in Lee (1977) and Rosenberry and LaBaugh (2008). The seepage meters were 0.56 meter in diameter and covered a surface area on the lake bottom of about 0.25 square meter. The data table provides locational information for each seepage-measurement site, including easting and northing, in meters relative to the Massachusetts State Plane coordinate system (North American Datum of 1983); and the approximate lake-water depth, in meters. The data... Categories: Data; Tags: Cape Cod, groundwater flow, hydrogeology, seepage, seepage meter Observations of Lithostratigraphy and Hydrogeology From a Boring Drilled to Bedrock in Glacial Sediments Near Nantucket Sound in East Falmouth, Cape Cod, Massachusetts Lithostratigraphic and hydrogeologic observations for the unconfined aquifer of western Cape Cod are limited near coastal groundwater-discharge areas. In spring 2015, a 310-foot-deep boring was drilled and a well was installed to 100 feet below land surface to facilitate detailed study of aquifer characteristics along the southern coast of Cape Cod. Characteristics of interest included the depth and character of the freshwater/saltwater interface and bedrock surface, and vertical variations in grain size, bedding structure, and hydraulic conductivity. Sediment cores were collected from land surface to the bedrock surface at 305 feet below land surface. Bedrock cores were collected from 305 to 310 feet below land... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: East Falmouth, Freshwater/Saltwater Interface, Hydrogeology, Lithology, Lithostratigraphy, All tags... hydrogeologic units, hydrostratigraphy, Fewer tags Microplastics data collected from streams in the northeastern United States, 2017-2018 These data were collected to characterize the quantity and quality of microplastic particles found in 17 streams in the northeastern United States, from New York to Virginia. USGS staff who represent the Urban Landscapes Capabilities Team (ULCT) within the North Atlantic-Appalachian Region designed the study and collected the water samples on which the data are based. Data were collected during 2017 and 2018 and included a baseflow and stormflow sample at each site. Additionally, the various microplastic particles in each sample were characterized by one of two different size-fraction categories (categories of 355-1000 micrometers and 1000-5600 micrometers), by type of particle (fiber/line, fiber clump, bead/pellet,... Categories: Data; Tags: Connecticut, New Jersey, New York, Pennsylvania, Rhode Island, All tags... USGS Science Data Catalog (SDC), Virginia, Washington, DC, contamination and pollution, human impacts, inlandWaters, microplastics, surface water quality, Fewer tags Chemical Data From 40 Years of Monitoring a Treated-Wastewater Groundwater Plume in a Sand and Gravel Aquifer, Cape Cod, Massachusetts, 1978-2018 This U.S. Geological Survey data release provides a comprehensive dataset of water-quality data and sampling-site characteristics collected in 1978–2018 during a study of the effects of land disposal of treated wastewater on groundwater quality in an unconsolidated sand and gravel aquifer on Cape Cod, Massachusetts. Treated sewage-derived wastewater was discharged to rapid-infiltration beds at Joint Base Cape Cod for nearly 60 years before the disposal was moved to a different location in December 1995. The discharge formed a plume of contaminated groundwater that partly discharges to a glacial kettle lake about 1,600 feet from the beds and extends about 4.5 miles toward coastal saltwater bodies at Vineyard Sound.... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Barnstable County, Bourne, Cape Cod, Falmouth, Mashpee, All tags... Massachusetts, Sandwich, USGS Science Data Catalog (SDC), contaminant transport, groundwater, groundwater flow, groundwater quality, hydrogeology, natural restoration, nutrient content (water), nutrient cycling, oxygen content (water), reaction transport, reactive transport, water chemistry, water quality, water sampling, water-quality restoration, Fewer tags Exceedance Probability and Predictor Data for Uranium and Radon Concentrations in New Hampshire Groundwater Statewide maps of the probability of exceeding a given concentration of either uranium (U) or radon (Rn) in New Hampshire groundwater (represented as statewide rasters) are the product of statistical analyses and are available here. The dependent variables in these statistical models were either 1) the natural log of Rn concentrations or 2) a dichotomous variable indicating the exceedance of 1 microgram per liter (μg/L) U in groundwater samples. In the case of U, a dichotomous variable was used because of the large number of measured samples below the detection limit. A boosted Regression Tree (BRT) model was selected for the U analysis with an exceedance probability of 1 ug/L because that was near the center of... Categories: Data; Tags: Groundwater, Hydrologic Position, Hydrology, Information Sciences, National, All tags... New Hampshire, Radon, USGS Science Data Catalog (SDC), United States, Uranium, Water Quality, Water Quality, Water Resources, concentration, probability, Fewer tags Water-Quality Data in and near Groundwater Flow-Through Kettle-Hole Lakes, Western Cape Cod, Massachusetts, 2003 - 2018 This U.S. Geological Survey (USGS) data release provides a comprehensive dataset of water-quality results, physical-parameter measurements, hydrologic measurements, and site information collected to study the nature and extent of water quality along groundwater flow paths adjacent to glacial-kettle lakes on Cape Cod, Massachusetts. Water-quality samples were collected in 2003, 2005, and 2012 through 2018 in and near seven kettle lakes located on western Cape Cod, with most of the data collected in 2015-2017 from Ashumet Pond, which is located in the towns of Falmouth and Mashpee. Data were also collected at other lakes to compare the lake-specific influences of geochemistry and hydrology on the downgradient groundwater... Categories: Data; Tags: Ashumet Pond, Bourne, Cape Cod, Centerville, Ecology, All tags... Falmouth, Geochemistry, Hydrogeology, Long Pond, Lovells Pond, Mashpee, Massachusetts, Sandwich, Santuit Pond, Shubael Pond, Snake Pond, USGS Science Data Catalog (SDC), Water Quality, eutrophication, groundwater, groundwater and surface-water interaction, groundwater flow, groundwater quality, hydrogeology, lake ecosystems, lake-bed characteristics, limnology, microbiology, nutrient content (water), nutrient cycling, oxygen content (water), reaction transport, water chemistry, water quality, water sampling, Fewer tags Computed Streamflow Using Satellite Data for Selected Rivers in Alaska This dataset provides computed remotely-sensed streamflows (RSQ) at river reaches of selected rivers in Alaska. We used the relation between water-surface elevation data derived from satellite altimetry and dynamic surface water extent data derived from LANDSAT and Sentinel imagery data with the Modified Optimized Manning Method Algorithm (MOMMA) to compute remotely sensed streamflows. Data are organized in ZIP packages named for each river reach. Reach-specific details are provided in a README file included in each river reach ZIP package. Depending on the input data available for specific reaches, we used different workflows to estimate river reach width and process the data from river reaches. Each workflow... Categories: Data, Data Release - Revised; Tags: Alaska, Altimetry measurement, Canning River, Colville River, Copper River, All tags... Elevation, Holitna River, Hydrology, InlandWaters, Innoko River, Kantishna River, Knik River, Koyukuk River, Kuskokwim River, Multispectral imaging, Nushagak River, Porcupine River, Remote Sensing, Remote sensing, Streamflow, Susitna River, Tanana River, USGS Science Data Catalog (SDC), Water Resources, Yukon River, Fewer tags Geospatial Dataset of Wells and Attributes in the New England Groundwater Level Network, 2017 (ver. 1.1, December 2019) A dataset of well information and geospatial data was developed for 426 U.S. Geological Survey (USGS) observation wells in Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont. An extensive list of attributes is included about each well, its location, and water-level history to provide the public and water-resources community with comprehensive information on the USGS well network in New England and data available from these sites. These data may be useful for evaluating groundwater conditions and variability across the region. The well list and site attributes, which were extracted from USGS National Water Information System (NWIS), represent all of the active wells in the New England network... Categories: Data, Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Aquifer, Ground Water, Hydrology, Topographic setting, USGS Science Data Catalog (SDC), All tags... Water Quality, Water Resources, Water levels, Well Network, Fewer tags Concentrations of metals and other water-quality data for the Assabet and Concord Rivers, Massachusetts, 2008 This dataset contains water-quality data for stream samples collected by the U.S. Geological Survey at 12 sites on the Assabet and Concord Rivers in eastern Massachusetts in 2008. The samples were collected monthly from June to October, 2008. The water-quality parameters and constituents include field parameters (water temperature, specific conductance, pH, and dissolved oxygen), concentrations of dissolved and total calcium, magnesium, and selected metals, total suspended solids, and dissolved organic carbon. Hardness calculated from dissolved calcium and magnesium also is included. Data collection was done in cooperation with the Massachusetts Department of Environmental Protection and the U.S. Environmental Protection... Categories: Data; Tags: Assabet River, Concord River, Environmental Health, Massachusetts, USGS Science Data Catalog (SDC), All tags... Water Quality, Water Resources, surface water quality, Fewer tags Testing data set for independent analysis of New Hampshire arsenic model This data release contains a table of measured arsenic concentrations and associated model input variables used to test existing multivariate logistic regression models that predict the probabilities of arsenic concentrations exceeding threshold values of 1, 5, and 10 micrograms per liter in bedrock aquifers of New Hampshire. Location data are censored to the county level. Categories: Data; Tags: Arsenic, Drinking Water, Mathematical Modeling, New Hampshire, Spatial Analysis, All tags... USGS Science Data Catalog (SDC), Water Quality, Water Quality, Fewer tags Arsenic datasets and other physical and chemical measurements for selected domestic well-water supplies in Maine: 2001-2 and 2006-7 The U.S. Geological Survey (USGS), in cooperation with the U.S. Centers for Disease Control and Prevention and the Maine Center for Disease Control and Prevention, assessed the physical and chemical characteristics and the occurrence, distribution, and oxidation state of inorganic arsenic in drinking water from selected domestic well-water supplies in Maine in 2001-2 and 2006-7. The data collected provide support for evaluating arsenic-removal efficiencies of household water-purification systems and provide information to State and local officials that can be used in determining a water-treatment approach for the removal of arsenic from drinking water. Categories: Data; Tags: Maine, USGS Science Data Catalog (SDC), Water Quality, arsenic, arsenic(III), All tags... arsenic(V), biota, domestic well water use, drinking water, groundwater quality, Fewer tags « 1 2 3 4 5 6 »