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Location Folder Show Tree ROOT _ScienceBase Catalog __National Water-Quality Assessment Project Agricultural Chemicals: Sources, Behavior, and Transport Groundwater Studies Integrated Watershed Studies Team National Water Quality Network National Water Quality Program – Trends More... Filters Date Range Past year (4) Past month (0) Past week (0) Past day (0) Custom range... To   Search Extensions Community (1) Types Map Service (41) OGC WFS Layer (41) Citation (8) Contacts Water Resources U.S. Geological Survey - ScienceBase U.S. Geological Survey U.S. Geological Survey Peter C VanMetre More... Categories Data (17) Data Release - Revised (1) Tag Types Theme (37) Place (29) USGS Scientific Topic Keyword (32) Harvest Set (36) Label (10) Tag Schemes None (22) Geographic Names Information System (5) Oregon GEO Place Keywords (5) USGS Thesaurus (15) Common geographic areas (11) none (3) FGDC (2) More... View Results as: JSON ATOM CSV Browse Folder

Study Boundary for the U.S. Geological Survey Southeast Stream Quality Assessment In 2015, the second of several Regional Stream Quality Assessments (RSQA) was done in the southeastern United States. The Southeast Stream Quality Assessment (SESQA) was a study by the U.S. Geological Survey (USGS) National Water Quality Assessment (NAWQA) project. One of the objectives of the RSQA, and thus the SESQA, is to characterize the relationships between water-quality stressors and stream ecology and subsequently determine the relative effects of these stressors on aquatic biota within the streams (Van Metre and Journey, 2014). To meet this objective, a framework of fundamental geospatial data was required to develop physical and anthropogenic characteristics of the study region, sampled sites and corresponding... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Study area, Water Quality Environmental and Quality-Control Data Collected by the USGS National Water-Quality Assessment Project for Hormones and Pharmaceuticals in Groundwater Used as a Source of Drinking Water Across the United States, 2013-15 This data set includes results for hormone and pharmaceutical compounds analyzed in environmental and quality-control samples collected by the USGS National Water-Quality Assessment Project during 2013 through 2015 for a study of groundwater resources used for drinking-water supply across the United States. Hormone and pharmaceutical results are provided for environmental samples collected at 1,120 wells or springs; selected ancillary data, such as principal aquifer, well depth, and land-use information also are provided for the sampled sites. The types of quality-control samples included in this data set are blanks, matrix spikes, and replicates collected at field sites or field offices. Included in this data... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Cycle 3, Drinking water, Environmental Health, Groundwater, Hormones, All tags... Human health, NAWQA, National Water Quality Program, Pharmaceuticals, USGS Science Data Catalog (SDC), United States, Water Quality, Water quality, Fewer tags Data for the occurrence and distribution of strontium in U.S. groundwater Water-quality data for groundwater samples collected from 4,824 sites between 1991 through 2018, and ancillary data and information on sampled wells and principal aquifers, were used to assess the occurrence and distribution of strontium in U.S. groundwater from 32 principal aquifers. This data release includes one tab-delimited text file detailing these data. Table: Chemical data from the U.S. Geological Survey National Water Information System and ancillary data considered for assessment of strontium concentration in U.S. groundwater. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Hydrology, NAWQA, USGS Science Data Catalog (SDC), Water Quality, cycle 3, All tags... drinking water, groundwater, strontium, water quality, Fewer tags Stream metabolism estimates for the Regional Stream Quality Assessments of the National Water Quality Program, 2013 to 2016 This dataset provides details from stream metabolism models for 20 stream sites in the United States that were sampled as part of the National Water Quality Program's Regional Stream Quality Assessments (RSQA). Metabolism was estimated at each site using the streamMetabolizer package in R. For each of the 20 sites, three files are provided; (1) the input data, which includes continuous dissolved oxygen, water temperature, light, and stream depth, (2) the output data containing the daily metabolism estimates, and (3) a site-specific html 'guide' for running the streamMetabolizer package in R. The site 'short_name' is included in each file name to distinguish the files associated with each field site. Final metabolism... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Connecticut, Georgia, Illinois, Indiana, Iowa, All tags... New York, North Carolina, Oregon, USGS Science Data Catalog (SDC), United States, Washington, dissolved oxygen, ecosystem respiration, environment, gross primary productivity, inlandWaters, oxygen content (water), photosynthesis, rivers, stream metabolism, streamMetabolizer, streams, water quality, water temperature, Fewer tags Datasets from Groundwater-Quality and Select Quality-Control Data from the National Water-Quality Assessment Project, January through December 2015 and Previously Unpublished Data from 2013-2014 Groundwater-quality data were collected from 502 wells as part of the National Water-Quality Assessment Project of the U.S. Geological Survey National Water-Quality Project and are included in this data release. Most of the wells (500) were sampled from January through December 2015 and 2 of them were sampled in 2013. The data were collected from five types of well networks: principal aquifer study networks, which are used to assess the quality of groundwater used for public water supply; land-use study networks, which are used to assess land-use effects on shallow groundwater quality; major aquifer study networks, which are used to assess the quality of groundwater used for domestic supply; enhanced trends networks,... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Cycle 3, NAWQA, National Water Quality Program, USGS Science Data Catalog (SDC), Water Quality, All tags... cycle 3, groundwater, nawqa, water quailty, Fewer tags Geospatial database of the study boundary, sampled sites, watersheds, and riparian zones for U.S. Geological Survey Southeast Stream Quality Assessment In 2015, the second of several Regional Stream Quality Assessments (RSQA) was done in the southeastern United States. The Southeast Stream Quality Assessment (SESQA) was a study by the U.S. Geological Survey (USGS) National Water Quality Assessment (NAWQA) project. One of the objectives of the RSQA, and thus the SESQA, is to characterize the relationships between water-quality stressors and stream ecology and subsequently determine the relative effects of these stressors on aquatic biota within the streams (Van Metre and Journey, 2014). To meet this objective, a framework of fundamental geospatial data was required to develop physical and anthropogenic characteristics of the study region, sampled sites and corresponding... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Ecology, National Water Quality Program, Riparian Zones, Sampling sites, USGS Science Data Catalog (SDC), All tags... Water Quality, Water Quality, Water Resources, Watersheds, Fewer tags Geospatial database of the study boundary, sampled sites, watersheds, and riparian zones developed for the U.S. Geological Survey Midwest Stream Quality Assessment In 2013, the first of several Regional Stream Quality Assessments (RSQA) was done in the Midwest United States. The Midwest Stream Quality Assessment (MSQA) was a collaborative study by the U.S. Geological Survey (USGS) National Water Quality Assessment (NAWQA), the USGS Columbia Environmental Research Center, and the U.S. Environmental Protection Agency (USEPA) National Rivers and Streams Assessment (NRSA). One of the objectives of the RSQA, and thus the MSQA, is to characterize the relationships between water-quality stressors and stream ecology and to determine the relative effects of these stressors on aquatic biota within the streams (U.S. Geological Survey, 2012). To meet this objective, a framework of fundamental... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: USGS Science Data Catalog (SDC), Water Quality Concentrations of glyphosate and atrazine compounds in 100 Midwest United States streams in 2013 Temporal patterns in glyphosate and atrazine concentrations were measured weekly by the U.S. Geological Survey (USGS) during the 2013 growing season in 100 small streams in the Midwestern United States. Concentrations also were measured every 2 days at a subset of 8 of the sites, all located in Missouri. Glyphosate was detected more frequently in urban streams than in agricultural streams, and at concentrations similar to those in streams with high agricultural land use in the watershed. In contrast, atrazine was detected more frequently and at higher concentrations in agricultural streams than in urban streams. This data release provides watershed characteristics and 2013 glyphosate and atrazine compound concentrations... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Corn Belt, ELISA, Illinois, Indiana, Iowa, All tags... Kansas, Kentucky, Minnesota, Missouri, Nebraska, Ohio, South Dakota, USGS Science Data Catalog (SDC), United States, Water Quality, Wisconsin, atrazine, glyphosate, herbicide, river, spring flush, stream, Fewer tags Third-party performance assessment data encompassing the time period of analysis of groundwater samples collected for hormones and pharmaceuticals by the National Water-Quality Assessment Project in 2013-15 This data set includes sample information and results for third-party performance assessment samples analyzed for hormones and pharmaceuticals during the same general time period as environmental samples collected by the National Water-Quality Assessment (NAWQA) Project for a study of groundwater resources used for drinking-water supply across the United States, 2013 through 2015. Hormone and pharmaceutical results are provided for spiked and unspiked samples submitted by the Quality Systems Branch (QSB) Organic Blind Sample Project (OBSP), providing information regarding analyte recovery and occurrence of false positive and false negative results. Included in this data release are the following data tables: Table... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Cycle 3, Groundwater, NAWQA, National Water Quality Program, USGS Science Data Catalog (SDC), All tags... United States, Water Quality, Water quality, hormones, laboratory performance, pharmaceuticals, quality control, Fewer tags Data for machine learning predictions of pH in the glacial aquifer system, northern USA A boosted regression tree (BRT) model was developed to predict pH conditions in three-dimensions throughout the glacial aquifer system (GLAC) of the contiguous United States using pH measurements in samples from 18,258 wells and predictor variables that represent aspects of the hydrogeologic setting. Model results indicate that the carbonate content of soils and aquifer materials strongly controls pH and when coupled with long flow paths, results in the most alkaline conditions. Conversely, in areas where glacial sediments are thin and carbonate-poor, pH conditions remain acidic. At depths typical of drinking-water supplies, predicted pH > 7.5 – which is associated with arsenic mobilization – occurs more frequently... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Boosted regression trees, Calcite saturation index, Connecticut, Geochemistry, Geochemistry, All tags... Glacial aquifer system, Groundwater, Groundwater corrosivity, Hydrology, Idaho, Illinois, Indiana, Iowa, Kansas, Machine learning, Maine, Massachusetts, Michigan, Minnesota, Missouri, Montana, NAWQA, Nebraska, New Hampshire, New Jersey, New York, North Dakota, Ohio, Pennsylvania, Rhode Island, South Dakota, USGS Science Data Catalog (SDC), Vermont, Washington, Water Quality, Wisconsin, pH, Fewer tags Till geochemistry from rotosonic cores in Minnesota, USA Samples for analysis were selected from 1) archived rotosonic cores drilled by the Minnesota Geological Survey and archived at the Lands and Minerals Drill Core Library, Minnesota Department of Natural Resources, Hibbing, Minnesota, USA; or b) freshly collected rotosonic cores, collected on-site at the time of coring. Cores in the sample archive are stored in wooden core-boxes in ambient air. Cores have supporting geology, stratigraphy, geochemistry, and hydrogeology data as published in County Geologic Atlases, Parts A and B, by the Minnesota Geological Survey (MGS) and the Minnesota Department of Natural Resources (MDNR); or in Regional Hydrogeologic Assessments, MGS. Included in this data release are: Core_Chem_Locations.pdf:... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Geochemistry, Hydrology, Minnesota, USGS Science Data Catalog (SDC), Water Quality, All tags... arsenic, county geologic atlas, drinking water use, groundwater, till geochemistry, trace elements, water quality, Fewer tags Data for three-dimensional distribution of groundwater residence time metrics in the glaciated United States using metamodels trained on general numerical simulation models Residence time distribution (RTD) is a critically important characteristic of groundwater flow systems; however, it cannot be measured directly. RTD can be inferred from tracer data with analytical models (few parameters) or with numerical models (many parameters). The second approach permits more variation in system properties but is used less frequently than the first because large-scale numerical models can be resource intensive. With the data and computer codes in this data release users can (1) reconstruct and run 115 General Simulation Models (GSMs) of groundwater flow, (2) calculate groundwater age metrics at selected GSM cells, (3) train a boosted regression tree model using the provided data, (4) predict... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Boosted regression tree, Connecticut, Cycle 3, Glacial Principal Aquifer, Groundwater age, All tags... Groundwater model, Hydrology, Illinois, Indiana, Iowa, Kansas, Maine, Massachusetts, Metamodel, Michigan, Minnesota, Missouri, Montana, NAWQA, Nebraska, New Hampshire, New Jersey, New York, North Dakota, Ohio, Pennsylvania, Residence time distribution, Rhode Island, South Dakota, USGS Science Data Catalog (SDC), Vermont, Washington, Water Quality, Wisconsin, Fewer tags Selected Environmental Characteristics of Sampled Sites, Watersheds, and Riparian Zones for the U.S. Geological Survey Midwest Stream Quality Assessment In 2013, the first of several Regional Stream Quality Assessments (RSQA) was done in the Midwest United States. The Midwest Stream Quality Assessment (MSQA) was a collaborative study by the U.S. Geological Survey (USGS) National Water Quality Assessment (NAWQA), the USGS Columbia Environmental Research Center, and the U.S. Environmental Protection Agency (USEPA) National Rivers and Streams Assessment (NRSA). One of the objectives of the RSQA, and thus the MSQA, is to characterize the relationships between water-quality stressors and stream ecology and to determine the relative effects of these stressors on aquatic biota within the streams (U.S. Geological Survey, 2012). To meet this objective, a framework of fundamental... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Basin characteristics, Drainage-area characteristics, Environmental characteristics, Geographic Information Systems, Geospatial Analysis, All tags... Geospatial Datasets, Illinois, Indiana, Iowa, Kansas, Kentucky, MSQA, Michigan, Midwest, Midwest Stream Quality Assessment, Minnesota, Missouri, National Water Quality Assessment, Nebraska, Ohio, RSQA, Regional Stream Quality Assessment, Riparian-zone characteristics, Site characteristics, South Dakota, USGS Science Data Catalog (SDC), Water Quality, Watershed characteristics, Wisconsin, inlandWaters, Fewer tags Water-quality trends and trend component estimates for the Nation's rivers and streams using Weighted Regressions on Time, Discharge, and Season (WRTDS) models and generalized flow normalization, 1972-2012 Nonstationary streamflow due to environmental and human-induced causes can affect water quality over time, yet these effects are poorly accounted for in water-quality trend models. This data release provides instream water-quality trends and estimates of two components of change, for sites across the Nation previously presented in Oelsner et al. (2017). We used previously calibrated Weighted Regressions on Time, Discharge, and Season (WRTDS) models published in De Cicco et al. (2017) to estimate instream water-quality trends and associated uncertainties with the generalized flow normalization procedure available in EGRET version 3.0 (Hirsch et al., 2018a) and EGRETci version 2.0 (Hirsch et al., 2018b). The procedure... Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Contiguous United States and Puerto Rico, USGS Science Data Catalog (SDC), United States, biota, carbon, All tags... concentration, loads (fluxes), major ions, nutrients, rivers, salinity, sediment, streams, surface water quality, water-quality trends, Fewer tags Crosswalk Table Between NHDPlus V2.1 and its Accompanying Watershed Boundary Dataset Snapshot of 12-Digit Hydrologic Units A crosswalk table between NHDPlus version 2.1 flowlines (using the unique field COMID) and the Watershed Boundary Dataset (WBD) 12-digit-hydrologic units (HU-12) is provided for the 48 contiguous United States. The crosswalk table provides a WBD HU-12 assignment for every networked flowline in the NHDPlus. In this way, the network developed for navigation and modeling, NHDPlus, is aligned with accounting units of the WBD HU-12s to the extent possible given the assumptions that were made in creating each. A crosswalk table for NHDPlus isolated sinks was produced by a simple overlay process where the sinks were assigned HU-12 values based on their position relative to the WBD snapshot HU-12s. This table was integrated... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: COMID, HUC12, NHDPlus, USGS Science Data Catalog (SDC), WBD, All tags... flowlines, sinks, Fewer tags Data from Decadal Change in Groundwater Quality Web Site, 1988-2014, Version 2.0 Evaluating Decadal Changes in Groundwater Quality: Groundwater quality data were collected from 5,000 wells between 1988-2001 (first sampling event) by the U.S. Geological Survey’s National Water-Quality Assessment Project. Samples are collected in groups of 20-30 wells with similar characteristics called networks. About 1,500 of these wells in 67 networks were sampled about 10 years later between 2002-2012 (second sampling event) to evaluate decadal changes in groundwater quality. Between 2012 and 2014 (third sampling event), a subset of these networks has been sampled again, allowing additional results to be displayed on the web page: Decadal changes in groundwater quality. Changes to this web page are referred... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: NAWQA, National Water Quality Program, USGS Science Data Catalog (SDC), United States, cycle 3, All tags... groundwater, groundwater quality, trends, water quality, Fewer tags Datasets from Groundwater-Quality Data from the National Water-Quality Assessment Project, January through December 2014 and Select Quality-Control Data from May 2012 through December 2014 Groundwater-quality data were collected from 559 wells as part of the National Water-Quality Assessment Project of the U.S. Geological Survey National Water-Quality Program from January through December 2014. The data were collected from four types of well networks: principal aquifer study networks, which assess the quality of groundwater used for public water supply; land-use study networks, which assess land-use effects on shallow groundwater quality; major aquifer study networks, which assess the quality of groundwater used for domestic supply; and enhanced trends networks, which evaluate the time scales during which groundwater quality changes. Groundwater samples were analyzed for a large number of water-quality... Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Hydrogeology, NAWQA, National Water Quality Program, USGS Science Data Catalog (SDC), United States, All tags... Water Quality, cycle 3, groundwater, groundwater, nawqa, water quality, Fewer tags Riparian-Zone Boundaries for the U.S. Geological Survey Southeast Stream Quality Assessment In 2015, the second of several Regional Stream Quality Assessments (RSQA) was done in the southeastern United States. The Southeast Stream Quality Assessment (SESQA) was a study by the U.S. Geological Survey (USGS) National Water Quality Assessment (NAWQA) project. One of the objectives of the RSQA, and thus the SESQA, is to characterize the relationships between water-quality stressors and stream ecology and subsequently determine the relative effects of these stressors on aquatic biota within the streams (Van Metre and Journey, 2014). To meet this objective, a framework of fundamental geospatial data was required to develop physical and anthropogenic characteristics of the study region, sampled sites and corresponding... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Riparian Zones, Water Quality Selected environmental characteristics of sampled sites, watersheds, and riparian zones for the U.S. Geological Survey Regional Stream Quality Assessment, 2013 to 2017 In 2013, the Regional Stream Quality Assessment (RSQA) study was started as part of the U.S. Geological Survey (USGS) National Water-Quality Assessment (NAWQA) project. One of the objectives of the RSQA is to characterize the relationships between water-quality stressors and stream ecology and subsequently determine the relative effects of these stressors on aquatic biota within the streams (Garrett and others, 2017; Journey and others, 2015; Coles and others, 2019; Sheibley and others, 2017; May and others, 2020). The study was implemented in five regions across the United States (U.S.); the Midwest (MSQA) in 2013, the southeast (SESQA) in 2014, the Pacific Northwest (PNSQA) in 2015, the northeast (NESQA) in 2016,... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alabama, Basin characteristics, California, Connecticut, Delaware, All tags... Drainage-area characteristics, Environmental characteristics, Geographic Information Systems, Georgia, Geospatial Analysis, Geospatial Datasets, Hydrology, Illinois, Indiana, Iowa, Kansas, Kentucky, Massachusetts, Midwest, Minnesota, Missouri, NAWQA, National Water Quality Assessment, Nebraska, New Jersey, New York, North Carolina, Northeast, Ohio, Oregon, Pacific Northwest, Pennsylvania, RSQA, Regional Stream Quality Assessment, Rhode Island, Riparian-zone characteristics, Site characteristics, South Carolina, Southeast, USGS Science Data Catalog (SDC), United States, Vermont, Virginia, Washington, Water Quality, Water Resources, Watershed characteristics, Wisconsin, biota, inlandWaters, Fewer tags Dissolved Pesticides in Weekly Water Samples from the NAWQA Regional Stream Quality Assessments (2013-2017) Dissolved pesticides were measured in weekly water samples from 482 wadeable streams in five regions of the United States during 2013-2017, as part of the U.S. Geological Survey's (USGS) Regional Stream Quality Assessment (RSQA). One study was conducted each year, starting with the Midwest (2013), followed by the Southeast Piedmont (2014), Pacific Northwest (2015), Northeast (2016), and Central California Coast (2017). Within each region, 77-100 streams were sampled over 6-14 weeks, followed by ecological surveys of fish, invertebrate and fish communities. The first study (Midwest) is an agricultural-gradient study, where the majority of sites were located along a gradient from undeveloped to 100% agricultural land... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alabama, California, Central California Foothills ecoregion, Coastal Mountains ecoregion, Connecticut, All tags... Corn Belt, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Massachusetts, Midwest, Minnesota, Missouri, NAWQA, National Water Quality Assessment, Nebraska, New Hampshire, New York, North Carolina, Northeast, Ohio, Pacific Northwest, Pennsylvania, Piedmont ecoregion, Puget lowlands ecoregion, Rhode Island, South Carolina, South Dakota, Southeast, Tennessee, USGS Science Data Catalog (SDC), United States, Vermont, Virginia, Water Quality, Water Resources, Willamette Valley, Wisconsin, fungicide, herbicide, insecticide, mixtures, pesticide, pesticide degradate, southern Appalachian Mountains, stream, surface water, surface water, water quality, Fewer tags 1 2 3 »