Filters: System Type: Data Release (X) > Categories: NOT Data Release - In Progress (X) > Tags: {"scheme":"None","name":"water quality"} (X) > Tags: {"scheme":"None","name":"cycle 3"} (X)

Filters Date Range Past year (1) Past month (0) Past week (0) Past day (0) Custom range... To   Search Types Map Service (3) OGC WFS Layer (3) OGC WMS Layer (3) OGC WMS Service (3) Contacts Jennifer B Sharpe U.S. Geological Survey - ScienceBase U.S. Geological Survey Water Resources John E Solder More... Categories Data (7) Tag Types Theme (89) Place (19) Tags (with Scheme=None) cycle 3 (12) groundwater (12) nawqa (12) water quality (12) dissolved gas (2) domestic supply (2) drinking water (2) More... View Results as: JSON ATOM CSV

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 Geochemical Correction of Carbon-14 in Dissolved Inorganic Carbon used for Groundwater Age Dating in the Glacial Aquifer System, Conterminous United States Data provided here describe geochemical correction of carbon-14 in dissolved inorganic carbon (DIC) for groundwater age dating. Datasets include major ion chemistry of groundwater samples, model parameter inputs, and final corrected carbon-14 in DIC. Geochemical correction was completed in two phases: determination of reactive phase mole transfers through an inverse geochemical model (PHREEQC; Parkhurst and Appleo, 1992) and tracking of isotopic mass transfer among phases (NetpathXL; Parkhusrtand Charlton, 2008). Parkhurst, D.L., and Appelo, C.A.J., 2013, Description of input and examples for PHREEQC version 3—A computer program for speciation, batch-reaction, one-dimensional transport, and inverse geochemical... Tags: Cenozoic, Connecticut, Holocene, Idaho, Illinois, All tags... Indiana, Iowa, Kansas, Maine, Massachusetts, Michigan, Minnesota, Missouri, Montana, NAWQA, Nebraska, New Hampshire, New Jersey, New York, North Dakota, Ohio, Pennsylvania, Pleistocene, Quaternary, Rhode Island, South Dakota, USGS Science Data Catalog (SDC), Vermont, Washington, Wisconsin, alkalinity, aqueous solutions, atmospheric chemistry, calcium, carbon cycle, carbonate minerals, carbonate rocks, chemical equilibrium, chemical interactions, chemical precipitation, chemical speciation, cycle 3, data release, dissolved carbon dioxide, dissolved gases, exchangeable cations, gas exchange, geochemical processes, geochemistry, glacial deposits, glacial drift, glacial soils, groundwater, groundwater, groundwater flow, groundwater quality, half life, hydrogeochemistry, hydrogeology, isotope fractionation, magnesium, mathematical simulation, minerals, rain, soil chemistry, soil chemistry, soil sciences, soil water, soil-plant-atmosphere interactions, solubility, stable isotopes, thermodynamics, unsaturated flow, vadose zone, water analysis, water chemistry, water quality, Fewer tags Data for Groundwater Age and Susceptibility of Poorly Consolidated Sedimentary Aquifers of the United States Gulf Coast: Results from the Southeast Coastal Plain (SECP), Coastal Lowland (CLOW), Mississippi Embayment and Texas Coastal Upland (METX) Principal Aquifer Networks This data release documents eight Microsoft Excel tables; four which contain data for understanding groundwater ages in the South East Coastal Plain (SECP), Coastal Lowlands (CLOW) and Mississippi Embayment and Texas Coastal Uplands (METX) aquifer systems and four that describe the data fields. Results described include dissolved gas modeling results, environmental tracer concentrations (tritium, tritiogenic helium-3, sulfur hexafluoride, and radiogenic helium-4), mean age and age distribution, and carbon-14 geochmical modeling results Dissolved gas modeling results (DGmodel) contains detailed information on the calibration of dissolved gas models to dissolved gas concentrations (neon, argon, krypton, xenon, and... Categories: Data; Tags: Alabama, Arkansas, Coastal Lowlands (CLOW), Cycle 3, Dissolved gas, All tags... Florida, Georgia, Groundwater, Groundwater age, Gulf Coast, Gulf and South Atlantic Coast Aquifers, Kentucky, Louisiana, Lumped parameter modeling, Mississippi, Mississippi Embayment and Texas Coastal Uplands (METX), Missouri, NAWQA, Recharge temperature, South Atlantic coast, South Carolina, South East Coastal Plain (SECP), Tennessee, Texas, USGS Science Data Catalog (SDC), Water Quality, Water quality, Fewer tags Data for timescales of water-quality change in a karst aquifer, south-central Texas Continuous monitoring and discrete water-quality sampling were coupled in a karst aquifer to assess drivers and timescales of water-quality change. Water-quality data included environmental tracers of groundwater age (tritium [3H], tritiogenic helium-3 [3He-trit], sulfur hexafluoride [SF6], carbon-14 [14C], and radiogenic helium-4 [4He-rad]). All water quality data is available from the U.S. Geological Survey NWIS database (U.S. Geological Survey, 2019). Groundwater ages were estimated by calibration of environmental tracers to lumped parameter models of groundwater age for multiple samples collected at six groundwater wells using the program TracerLPM (Jurgens and others, 2012). The final estimates for mean groundwater... Tags: Aquifer vulnerability, Cycle 3, Dissolved gas, Edwards aquifer, Groundwater, All tags... Groundwater age, Hydrology, Karst, Lumped parameter modeling, NAWQA, Radiocarbon, Texas, Tritium, USGS Science Data Catalog (SDC), Water Quality, Water quality, Fewer tags Data for Time Scales of Arsenic Variability and the Role of High-Frequency Monitoring at Three Water-Supply Wells in New Hampshire, USA This data release consists of data (in four tables) for assessing the time scales of arsenic variability in three production wells in New Hampshire; tables that describe the data fields in the data tables are also included in the data release. High-frequency (every 5 to 15 minutes) and bi-monthly water-quality monitoring of a bedrock-aquifer domestic well (425651070573701), a bedrock-aquifer public-supply well (425400070545401), and a glacial-aquifer public-supply well (425311070535801) was completed between 2014 and 2018. Concentrations of arsenic and other geochemical constituents and dissolved gases, as tracers of groundwater age, were measured on a bimonthly basis; physicochemical data, including specific conductance,... Tags: Arsenic, Bedrock aquifer, Cycle 3, Groundwater, Kensington, New Hampshire, All tags... NAWQA, New England, New England Coastal Basins, New Hampshire, Rockingham County, New Hampshire, Seabrook, New Hampshire, USGS Science Data Catalog (SDC), Water quality, Water supply, glacial aquifer, groundwater age, groundwater geochemistry, groundwater quality, noble gases, Fewer tags Point data for four case studies related to testing of multi-order hydrologic position The location of a point (or pixel) within the conterminous U.S. can be assigned based on its position relative to the Nation’s stream network. Two metrics are recognized: lateral position (LP) and distance from stream to divide (DSD). And given that a point can have different positions in different hydrologic orders the term multi-order hydrologic position (MOHP) is used to describe the ensemble of hydrologic positions. LP and DSD were developed for nine hydrologic orders across the conterminous U.S. (Belitz and others, 2019; Moore and others, 2019). Four case studies are presented here that were used for evaluating the utility of MOHP in the context of random forest machine learning (Belitz and others, 2019).... Categories: Data; Tags: Central Valley, California, Conterminous United States, Cycle 3, Fox-Wolf-Peshtigo, Groundwater, All tags... Hydrologic position, Hydrologic systems, Hydrology, Information Sciences, Machine learning, NAWQA, USGS Science Data Catalog (SDC), Water quality, Wisconsin, Fewer tags Data used to evaluate drinking water quality in the glacial aquifer system, northern USA This data release contains groundwater-quality data and well information for the glacial aquifer system in the northern USA. Water-quality data and well information were derived from a dataset compiled from three sources: The U.S. Geological Survey (USGS) National Water Information System (NWIS; USGS, 1998, 2002), the U.S. Environmental Protection Agency (USEPA) Safe Drinking Water Information System (SDWIS; USEPA, 2013), and numerous agencies and organizations at the state, regional, and local level. The data compilation of the National Water Quality Program’s groundwater assessment team is an internal dataset informally referred to as the National Groundwater Aggregation (NGA). The current study of groundwater... Tags: Aquifer system, Connecticut, Contaminants, Cycle 3, Drinking water, All tags... Glacial aquifer system, Groundwater, Hydrogeology, Hydrology, Idaho, Illinois, Indiana, Iowa, Kansas, 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, Water Resources, Water quality, Wisconsin, Fewer tags Data Release for Hydrocarbons in Upland Groundwater, Marcellus Shale Region, Northeastern Pennsylvania and Southern New York, USA Water samples from 50 domestic wells located <1 kilometer (km) (proximal) and >1 km (distal) from shale-gas wells in upland areas of the Marcellus Shale region were analyzed for chemical, isotopic and groundwater-age tracers. Uplands were targeted because natural mixing with brine and hydrocarbons from deep formations is less common in those areas compared to valleys. Methane (CH4) -isotope and pre-drill CH4 data indicate one proximal sample (5 percent of proximal samples) contains thermogenic CH4 (2.6 milligrams per liter (mg/L)) associated with shale-gas production. Chloride (Cl), bromide (Br), lithium (Li), and neon-20 (20Ne)/argon-36 (36Ar) data suggest that CH4 leaked from a nearby gas well in a gas phase.... Categories: Data; Tags: Bradford County, PA, Broome County, NY, Cycle 3, Domestic well, Environmental Health, All tags... Geochemistry, Groundwater, Groundwater-age distribution, Hydrocarbons, Hydrogeology, Marcellus Shale, NAWQA, New York, Pennsylvania, Shale-gas well, Sullivan County, PA, Susquehanna County, PA, Tioga County, NY, USGS Science Data Catalog (SDC), Water Quality, Water quality, Wyoming County, PA, Fewer tags Data for Fluoride Occurrence in United States Groundwater Data from 38,105 wells were used to characterize fluoride occurrence in untreated United States groundwater. The data were retrieved from the U.S. Geological Survey (USGS) National Water Information System (NWIS). Groundwater samples were collected from 1988 to 2017 in the conterminous United States. Data for groundwater included in this dataset are pH, water temperature, and concentrations of dissolved oxygen, calcium, magnesium, potassium, sodium, alkalinity, chloride, fluoride, silica, sulfate, aluminum, iron, manganese, and total dissolved solids. Categories: Data; Tags: Cycle 3, Hydrology, NAWQA, USGS Science Data Catalog (SDC), United States, All tags... Water Quality, fluoride, geochemistry, groundwater, water quality, Fewer tags Datasets of Groundwater-Quality and Select Quality-Control Data from the National Water-Quality Assessment Project, January 2017 through December 2019 (ver. 1.1, January 2021) Groundwater-quality data were collected from 983 wells as part of the National Water-Quality Assessment Project of the U.S. Geological Survey National Water-Quality Program and are included in this report. The data were collected from six 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, which are used to evaluate the time scales during which groundwater quality changes; vertical flow-path study... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Cycle 3, Domestic supply, Groundwater, Hydrology, NAWQA, All tags... Principal aquifer, Public water supply, USGS Science Data Catalog (SDC), United States, Water Quality, Water quality, Fewer tags National Multi Order Hydrologic Position (MOHP) Predictor Data for Groundwater and Groundwater-Quality Modeling Multi Order Hydrologic Position (MOHP) raster datasets: Distance from Stream to Divide (DSD) and Lateral Position (LP) have been produced nationally for the 48 contiguous United States at 30-meter and 90-meter cell resolution for stream orders 1 through 9. These data are available for testing as predictor variables for various regional and national groundwater-flow and groundwater-quality statistical models. For quicker downloads, these data are available here nationally at a 90-meter cell resolution, as well as on the National Spatial Data Infrastructure (NSDI) Node at the higher 30-meter cell resolution ( https://water.usgs.gov/GIS/metadata/styles/landingPage/national_MOHP_Predictor.xml ). The concept... Tags: Cycle 3, Groundwater, Hydrologic Position, NAWQA, National Rasters, All tags... Statistical Predictors, USGS Science Data Catalog (SDC), United States, Water Quality, Water Quality, Water Resources, Fewer tags Select Groundwater-Quality and Quality-Control Data from the National Water-Quality Assessment Project 2019 to Present (ver. 3.0, November 2023) Groundwater samples were collected and analyzed from 782 wells as part of the National Water-Quality Assessment Project of the U.S. Geological Survey National Water-Quality Program and the water-quality data and quality-control data are included in this data release. The samples were collected from three 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, and major aquifer study networks, which are used to assess the quality of groundwater used for domestic supply. Groundwater samples were analyzed for a large number of water-quality... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Cycle 3, Domestic supply, Groundwater, NAWQA, Principal aquifer, All tags... Public water supply, USGS Science Data Catalog (SDC), United States, Water quality, Fewer tags