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Water-Quality Data for Discrete Samples and Continuous Monitoring on the Merrimack River, Massachusetts, June to September 2020 This data release includes water-quality data collected at up to thirteen locations along the Merrimack River and Merrimack River Estuary in Massachusetts. In this study, conducted by the U.S. Geological Survey (USGS) in cooperation with the Massachusetts Department of Environmental Protection, discrete samples were collected, and continuous monitoring was completed from June to September 2020. The data include results of measured field properties (water temperature, specific conductivity, pH, dissolved oxygen) and laboratory concentrations of nitrogen and phosphorus species, total carbon, pheophytin-a, and chlorophyll-a. These data were collected to assess selected (mainly nutrients) water-quality conditions in... Categories: Data; Tags: Amesbury, MA, Haverhill, MA, Lawrence, MA, Lowell, MA, Massachusetts, All tags... Merrimac, MA, Merrimack River, Methuen, MA, Newburyport, MA, Salisbury, MA, Tyngsborough, MA, USGS Science Data Catalog (SDC), Water Quality, continuous water-quality, datasets, discrete water-quality, environment, marine water-quality, surface water (non-marine), surface water-quality, water sampling, Fewer tags Nitrogen Loads, Yields, and Associated Field Data Collected During Baseflow Conditions and Site Attributes for Small Basins Draining to Long Island Sound During the spring and summer of 2022, the U.S. Geological Survey collected water-quality samples for nutrient analysis at 45 stations across the state of Connecticut and adjacent areas of New York and Rhode Island to better understand the groundwater discharge component of nitrogen loading to the Long Island Sound. The targeted stations were located in small drainage basins (less than 50 square kilometers) in the southern portion of the Long Island Sound watershed. Sites were selected randomly from groups based on expected drivers or controls on baseflow nitrogen loads. Factors used in the grouping included four metrics calculated for the upstream watershed: percent impervious cover, septic system density, percent... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Connecticut, Connecticut Coastal, Hydrology, Long Island Sound, New York, All tags... Rhode Island, USGS Science Data Catalog (SDC), Water Quality, Water Resources, groundwater and surface-water interaction, inlandWaters, nitrogen, nutrient content (water), stream discharge, Fewer tags Temperature data collected from the Lower Yakima River from October 2018 to October 2020 A total of 27 temperature sensors were deployed along the lower 90 miles of the Yakima River at 7 locations where cold water had been previously observed. These 7 cold-water areas had 3 to 6 temperature sensors installed to document the extent and duration of these cold-water areas and their impacts on mainstem temperatures of the Lower Yakima River. Cold-water areas included the mouths of tributaries, alongside channels, and within alcoves. Sensor deployments ranged from 1 to 2 years beginning in October 2018. All temperature data are included in the Yakima.temperatures.zip folder. Details of each monitoring location are provided in the site.locs.csv file. In addition to the raw data and site location information,... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Aquatic Biology, Benton County, Ecology, Hydrology, Richland, WA, All tags... USGS Science Data Catalog (SDC), Washington State, Water Quality, Water Resources, Wildlife Biology, Yakima River, cold-water areas, inlandWaters, water temperature, Fewer tags Specific conductance data collected during slug additions Slug additions are often the most accurate method for determining discharge when traditional current meter or acoustic measurements are unreliable because of high turbulence, rocky streambed, shallow or sheet flow, or the stream is physically inaccessible (e.g., under ice or canyon walls) or unsafe to wade (Zellweger et al., 1989, Kilpatrick and Cobb 1984, Ferranti 2015). The slug addition method for determining discharge requires an injection of a known amount of a single salt and high-frequency downstream measurement of solute concentration to capture the response curve (Kilpatrick and Cobb 1984). A new slug method was developed to determine stream discharge utilizing specific conductance and ionic molal conductivities... Categories: Data; Tags: Geochemistry, Hydrology, NA, USGS Science Data Catalog (SDC), Water Quality, All tags... conductivity, discharge, slug, specific conductance, Fewer tags Benthic-macroinvertebrate and habitat data in Chester, Delaware, and Philadelphia Counties, Pennsylvania, 1998-2021 The Stream Conditions of Chester County Biological Monitoring Network was established by the U.S. Geological Survey and the Chester County Water Resources Authority in 1969. Benthic-macroinvertebrate, habitat, and stream chemistry data were collected annually from 1998-2021 at 18 fixed location sites. Additionally, nine flexible location sites were selected and sampled annually from 1998-2021. Some of the flexible location sites were sampled more than once over the study period. All data were collected in the fall months (October-November) during baseflow conditions. The benthic-macroinvertebrate data collected was used to calculate six metrics and to establish an index of biotic integrity for each sample, while... Categories: Data; Tags: Aquatic Biology, Chester County, Delaware County, Hydrology, Pennsylvania, All tags... Philadelphia County, USGS Science Data Catalog (SDC), Water Quality, biota, habitat quality, macroinvertebrates, Fewer tags High-resolution spatial water-quality and discrete phytoplankton data, Owasco Lake, Seneca Lake, and Skaneateles Lake, Finger Lakes Region, New York, 2018-2019 From August 2018 to October 2019, the U.S. Geological Survey collected spatially high-resolution water quality data as part of five shoreline synoptic surveys around the perimeters of Owasco, Seneca, and Skaneateles Lakes within the Finger Lakes Region of New York. Water-quality data were collected just below water surface utilizing YSI EXO2 multiparameter sondes and portable nitrate sensors paired with real-time GPS data as part of a HABs monitoring program in the Finger Lakes. In October 2019, water-quality data collection was paired with discrete phytoplankton grab samples on Owasco Lake and Seneca Lake. Phytoplankton grab samples were collected just below water surface with a peristaltic pump at twelve locations... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Aquatic Biology, Contaminants, HABS, Finger Lakes, Limnology, New York, All tags... Owasco Lake, Seneca Lake, Skaneateles Lake, Surface-Water Quality Monitoring, USGS Science Data Catalog (SDC), United States, Water Quality, Water Quality, Water Resources, algae, algal blooms, chlorophyll, class, continuously-measured, cyanobacteria, dissolved oxygen, division, family, fluorescent dissolved organic matter (fDOM), freshwater (surface), genus, hazards, lake ecosystems, limnology, nitrate, nutrient content (water), order, oxygen content (water), phycocyanin, phycology, phytoplankton, spatial, species, specific conductance, surface water quality, synoptic, taxa, taxonomy, turbidity, water pH, water temperature, Fewer tags Hydroacoustic Data to Support Embayment Monitoring in Long Island Sound, Mystic and Norwalk Embayments, Connecticut, 2021-2022 This data release includes hydroacoustic data for the 2021 to 2022 water years at four stations. These stations are part of a discrete and continuous monitoring project in embayments on Long Island Sound to support nutrient management activities in Connecticut. The data were collected by the U.S Geological Survey (USGS) in cooperation with the Connecticut Department of Energy and Environmental Protection. The data were collected using acoustic doppler current profilers (ADCPs) sampling 134 parameters every six minutes. Recorded values above the water surface were removed from files using an R script. The ADCPs were deployed at upstream and downstream locations in the Mystic and Norwalk embayments. For the Mystic... Tags: Embayment Monitoring, Environmental Health, Hydrology, Long Island Sound, Mystic River at Mystic Seaport, All tags... Mystic River at Rams Island Yacht Club, Norwalk Harbor at the Cove Marina, Norwalk River at Norwalk Aquarium, USGS Science Data Catalog (SDC), Water Quality, Water Resources, biota, hydroacoustics, Fewer tags Chemicals of Emerging Concern in Water and Bottom Sediment in Great Lakes Areas of Concern, 2013—Analytical Methods, Collection Methods, Environmental Data, and Quality Assurance The U.S. Geological Survey (USGS), in cooperation with the U.S. Fish and Wildlife Service (USFWS) and the U.S. Environmental Protection Agency (EPA), identified the occurrence of contaminants of emerging concern (CECs) in water and bottom sediment collected in 2013 at 57 sites throughout the Great Lakes Basin. The 2013 effort is part of a long-term study that began in 2010. Included in this directory are references to or descriptions of analytical methods used, collection methods, environmental data, and associated quality-assurance data for samples collected in 2013. Samples were collected from April through October 2013 by USGS, USFWS, and/or EPA personnel. Study sites include tributaries to the Great Lakes... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Area of Concern, Area of Concern, Emerging Contaminants, Emerging Contaminants, Great Lakes, All tags... Great Lakes Area of Concern, Great Lakes Restoration Initiative, Great Lakes Restoration Initiative, Toxicology, Toxicology, USGS Science Data Catalog (SDC), Water Quality, Fewer tags Water quality data from a multiparameter sonde collected in the Herring River during November 2018 to November 2019 in Wellfleet, MA Management efforts of the tidally-restricted Herring River in Wellfleet, MA include research to understand pre-restoration sediment conditions. Submerged multiparameter sondes that measure optical turbidity were deployed at four sites landward and seaward of the Herring River restriction. Periodically, the sites were visited and additional turbidity measurements were collected with a handheld multiparameter sonde, and water samples were collected for determination of suspended-sediment concentration (SSC). The handheld turbidity measurements were regressed against SSC using a repeated median regression to determine a calibration curve for calibrating the turbidity time-series data to SSC. The SSC derived from the... Categories: Data; Tags: Cape Cod National Seashore, Herring River, Massachusetts, Water Quality, Wellfleet, All tags... inlandWaters, oceans, sediment transport, suspended material (water), Fewer tags Water temperature in the Lower Missouri River and selected tributaries This dataset documents locations of and water temperature recorded by Hobo Water Temp Pro series loggers (Onset Computer Corp., Bourne, MA) deployed by the USGS Comprehensive Sturgeon Research Project at up to 24 locations in the Lower Missouri River (from the Gavins Point Dam near Yankton, South Dakota to its confluence with the Mississippi River near St. Louis, Missouri) and 13 selected tributaries (James River, Big Sioux River, Little Sioux River, Platte River (in Nebraska), Nishnabotna River, Nodaway River, Platte River (in Missouri), Kansas River, Grand River, Chariton River, Lamine River, Osage River, and Gasconade River) since 2005. Data document the site name, spatial location, temporal extent of water temperature... Categories: Data; Tags: Chariton-Grand, Gasconade-Osage, Grand River, James, Lamine, All tags... Lower Missouri, Lower Osage, Missouri-Big Sioux, Missouri-Little Sioux, Missouri-Nishnabotna, Platte River, Q, USGS Science Data Catalog (SDC), Water Quality, West Nodaway, environment, habitats, water temperature, Fewer tags Velocity Survey at Cross Sections in the Illinois River below Starved Rock Lock and Dam near Utica, Illinois, June 16, 2021 In support of U.S. Geological Survey invasive carp research examining aggregations of invasive carp in the tail water of dams, water velocity measurements were made at cross sections in the Illinois River below Starved Rock Lock and Dam on June 16, 2021. A total of 16 cross sections were surveyed, with two transects per cross section. Water depth and crew safety limited the extent of the survey. The discharge in the Illinois River at Starved Rock Lock and Dam at the time of data collection was approximately 185.7 cubic meters per second. The data were processed in the Velocity Mapping Toolbox (VMT) v.4.09 (Parsons and others, 2013) to obtain a depth-averaged velocity field for each cross section from paired transects... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Ecology, GPS measurement, Hydrology, Illinois, Illinois River, All tags... Starved Rock Lock and Dam, USGS Science Data Catalog (SDC), United States, Utica, Velocity Mapping Toolbox (VMT), Water Quality, Water Resources, acoustic doppler current profiling, bathymetry, inlandWaters, invasive species, Fewer tags Geospatially derived environmental characteristics to prioritize watersheds for research and monitoring needs within 18 hydrologic regions across the United States Water availability for human and ecosystem needs is a function of both water quantity and water quality, as described in the U.S. Geological Survey (USGS) Water Science Strategy (Evenson and others, 2013). Recently, a quantitative approach to prioritize candidate watersheds for monitoring investment was developed to understand changes in water availability and advance the objectives of new USGS programs (Van Metre and others, 2020). In this study design, the contiguous United States (CONUS) was divided into 18 regions (referred to here as “hydrologic regions” or “HRs”) with relatively homogeneous hydrologic drivers and processes to represent the wide diversity in conditions that exist across the CONUS. The gap analysis... Categories: Data; Tags: Ecology, Geochemistry, Hydrology, USGS Science Data Catalog (SDC), United States, All tags... Water Quality, Water Resources, contaminants of emerging concern, geogenics, geoscientificInformation, geospatial datasets, hydrologic region, inlandWaters, nutrient content (water), salinity, sediment transport, water temperature, Fewer tags Pilot Study of Per- and Polyfluoroalkyl Substances (PFAS) Infiltration to Shallow Groundwater Through Selected Soils in New Hampshire, 2023 In a study conducted by the U.S. Geological Survey (USGS) and the New Hampshire Department of Environmental Services, detectable concentrations of per- and polyfluoroalkyl substances (PFAS) were found in the soil at every site despite targeting locations with no known PFAS sources (Santangelo and others, 2022). The widespread distribution of PFAS concentrations in New Hampshire has since sparked critical interest into understanding whether recharge to groundwater contains significant concentrations of PFAS after infiltration through soils. To address this concern, the USGS implemented a pilot study designed to evaluate whether PFAS infiltrate through shallow soil into shallow groundwater. Five sites were selected... Categories: Data; Tags: Eastern United States, Environmental Health, Hydrology, New Hampshire, Northeast, All tags... PFAS, Soil Sciences, USGS Science Data Catalog (SDC), Water Quality, Water Resources, biota, chemical analysis, groundwater, hydrology, lysimeters, soil, Fewer tags Continuous water quality sensor data from the main channel and a backwater of the Upper Mississippi River from 2015-2018 This dataset includes high-frequency sensor data collected during four consecutive summers from buoys deployed at main channel and backwater sites in Pool 8 of the Upper Mississippi River from 2015-2018. It also includes the event-specific concentration-discharge metrics (hysteresis and slope) calculated by combining the water quality sensor data with discharge data from a nearby USGS gage in Winona, MN (05378500). High-frequency sensor data were collected using water quality buoys (PISCES monitoring platforms; EMM350 Water Monitoring Pontoon Platform | ysi.com | ysi.com; Yellow Springs, Ohio) set up with EXO2 Multiparameter Sondes (YSI, Inc, Yellow Springs, Ohio) to monitor hourly or bi-hourly concentrations of... Categories: Data; Tags: Mississippi River, USGS Science Data Catalog (SDC), Water Quality, chlorophyll a, dissolved organic matter, All tags... inlandWaters, nitrogen, phycocyanin, turbidity, water quality, Fewer tags Climate, Landscape, and Water-Quality Metrics for Selected Watersheds in Fairfax County, Virginia, 2007 – 2018 This data release documents spatiotemporal water-quality, landscape, and climatic conditions in Fairfax County, Virginia from 2007 through 2018. These data were used to evaluate the water-quality and ecological condition of 20 Fairfax County watersheds monitored since 2007. Data include measures of water-quality, precipitation, air temperature, land use, land cover, wastewater and stormwater infrastructure, soil properties, geologic setting, and stream networks. Annual values from 2007 through 2018 are reported for data expected to change over time. Watershed-specific values are reported for data that differ across the landscape. Annual values for the 20 study watersheds and Fairfax County are reported in the file... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Fairfax, USGS Science Data Catalog (SDC), Water Quality, air temperature, biota, All tags... land use and land cover, precipitation (atmospheric), water quality, Fewer tags Volatile organic compound, polychlorinated biphenyl, and biogeochemical data from passive samplers and laboratory experiments for wetland bioremediation study, Standard Chlorine of Delaware, Inc. Superfund Site, New Castle County, Delaware, 2019–2021 This metadata record contains 15 tables with results from field and laboratory tests used to assess bioremediation in wetland areas at the Standard Chlorine of Delaware, Inc. Superfund site, New Castle County, Delaware, during 2019-2021. Included in the dataset are (1) polychlorinated biphenyl (PCB) concentrations in wetland sediment from sediment microcosm laboratory experiments, (2) chlorobenzene concentrations in wetland sediment from sediment microcosm laboratory experiments, (3) polychlorinated biphenyl concentrations from PCB microcosm laboratory experiments using polyethylene strips, (4) chlorobenzene concentrations from PCB microcosm laboratory experiments using polyethylene strips, (5) total iron and ferrous... Categories: Data; Tags: Delaware, Delaware City, Environmental Health, Geochemistry, New Castle, All tags... Standard Chlorine of Delaware, Inc. Superfund site, Superfund site, USGS Science Data Catalog (SDC), Water Quality, bioavailability, bioremediation, chlorobenzene, compost microcosm, contamination and pollution, environment, geoscientificInformation, industrial pollution, iron, methane, microcosm, passive sampling, polychlorinated biphenyls, remediation, sediment, volatile organic compound, wetland ecosystems, Fewer tags Microplastics in the water column and sediment in Milwaukee-Area streams, the Milwaukee Harbor, and Lake Michigan, 2016 This dataset describes the quantity, morphology, and polymer identity of microplastics in the water column and surficial sediments of Milwaukee-Area streams, the Milwaukee Harbor, and Lake Michigan (Wisconsin). Water samples were collected at 10 locations, 2-4 times each, from May to September, 2016. At the 4 shallowest locations, water was collected only at the water surface. At the remaining 6 locations, water was collected at the water surface and at 1-4 depths below the surface. Sediment samples were collected once, in June 2016, at a subset of 9 locations. Sampling and analysis methods are described in the Processing Steps section of the metadata. These data are interpreted in the following journal article:... Categories: Data; Tags: Environmental Health, Hydrology, Lake Michigan, Milwaukee, USGS Science Data Catalog (SDC), All tags... Water Quality, Water Resources, Wisconsin, contamination and pollution, inlandWaters, microplastics, runoff, surface water quality, Fewer tags Compilation of multi-agency specific conductance observations for streams within the Chesapeake Bay watershed Freshwater salinization is an emerging issue for freshwater environments in the Chesapeake Bay, USA region. Salinization is often described by measurements of specific conductance (SC). This data release contains specific conductance observations collected by multiple regional agencies for streams within the Chesapeake Bay Watershed. This inventory compiles and harmonizes data from the Water Quality Portal (WQP), which is a data repository developed by the National Water Quality Monitoring Council and supported by the U.S. Environmental Protection Agency and U.S. Geological Survey, and the U.S. Geological Survey National Water Information System (NWIS). Both discrete measures of SC, which are single measures taken... Categories: Data; Tags: Chesapeake Bay watershed, Delaware, District of Columbia, Hydrology, Maryland, All tags... New York, Pennsylvania, USGS Science Data Catalog (SDC), United States, Virginia, Water Quality, Water Resources, West Virginia, biota, environment, freshwater ecosystems, inlandWaters, salinity, surface water quality, Fewer tags Nutrient and Sediment Concentrations, Loads, and Yields in the Upper Macoupin Creek Watershed, Water Years 2018–2021 This data release includes estimates of annual and daily concentrations and fluxes for nitrate plus nitrite, total phosphorus, and suspended sediment for two sites in the Upper Macoupin Creek Basin watershed (UMCB) produced using the Weighted Regressions on Time, Discharge, and Season -- Kalman Filter (WRTDS-K; Zhang and Hirsch, 2019) model in the Exploration of and Graphics for RivEr Trends (EGRET) package (Hirsch and De Cicco, 2015). It also includes a model archive (R scripts in Scripts.zip) used to retrieve and format the model input data and run the model. Input data, for Macoupin Creek at Highway 111 near Summerville, Illinois, and Macoupin Creek at Highway 108 near Carlinville, Illinois (U.S. Geological Survey... Categories: Data; Tags: Macoupin Creek, Nitrate plus nitrite, Nutrients, Phosphorus, Suspended sediment concentration, All tags... USGS Science Data Catalog (SDC), Water Quality, Water Quality, Water Resources, Weighted Regression on Time, Discharge, and Season - Kalman, biota, Fewer tags Lidar-derived rasters of point density, elevation, and geomorphological features for 2013, 2015, and 2022 for the Greater Raleigh Area, North Carolina As part of a collaborative study with the City of Raleigh, North Carolina, the U.S. Geological Survey developed a suite of high-resolution lidar-derived raster datasets for the Greater Raleigh Area, North Carolina, using repeat lidar data from the years 2013, 2015, and 2022. These datasets include raster representations of digital elevation models (DEMs), DEM of difference, the ten most common geomorphons (i.e. geomorphologic feature), lidar point density, and positive topographic openness. Raster footprints vary by year based on extent of lidar data collection. All files are available as Cloud Optimized GeoTIFF, meaning they are formatted to work on the cloud or can be directly downloaded. These metrics have been... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Geomorphology, Hydrology, North Carolina, Raleigh, Remote Sensing, All tags... USGS Science Data Catalog (SDC), Upper Neuse, Wake, Water Quality, environment, erosion, geography, geomorphology, geomorphon, geoscientificInformation, geospatial analysis, geospatial datasets, hydrology, land surface characteristics, lidar, positive openness, topography, Fewer tags 1 2 3 4 5 ... 18 »