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Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Extensions Citation (1) Types Map Service (2) OGC WFS Layer (2) OGC WMS Layer (2) OGC WMS Service (2) Contacts Office of Planning and Programming Water Resources Melissa L. Riskin U.S. Geological Survey - ScienceBase U.S. Geological Survey - ScienceBase More... Categories Data (9) Data Release - Revised (2) Publication (1) Tag Types Theme (20) Place (20) Harvest Set (20) Label (20) USGS Scientific Topic Keyword (13) Subject (1) Tag Schemes None (13) USGS Thesaurus (9) Common geographic areas (4) Geographic Names Information System (GNIS) (4) Oregon GEO Place Keywords (1) none (1) FGDC (2) Getty Thesaurus of Geographic Names (2) View Results as: JSON ATOM CSV

Water Balance Model Inputs and Outputs for the Conterminous United States, 1900-2015 This metadata record describes monthly input and output data covering the period 1900-2015 for a water-balance model described in McCabe and Wolock (2011). The input datasets are precipitation (PPT) and air temperature (TAV) from the PRISM group at Oregon State University. The model outputs include estimated potential evapotranspiration (PET), actual evapotranspiration (AET), runoff (RUN) (streamflow per unit area), soil moisture storage (STO), and snowfall (SNO). The datasets are arranged in tables of monthly total or average values measured in millimeters or degrees C and then multiplied by 100. The data are indexed by the identifier PRISMID, which refers to an ASCII raster of cells in an associated file named... Types: Citation; Tags: Conterminous United States, National Water Quality Program, USGS Science Data Catalog (SDC), Water Resources, evaporation, All tags... precipitation, streamflow, temperature, Fewer tags Pesticide concentration and streamflow datasets used to evaluate pesticide trends in the Nation’s rivers and streams, 1992-2012 In 1991, the U.S. Geological Survey (USGS) began a study of more than 50 major river basins across the Nation as part of the National Water-Quality Assessment (NAWQA) project of the National Water-Quality Program. One of the major goals of the NAWQA project is to determine how water-quality conditions change over time. To support that goal, long-term consistent and comparable monitoring has been conducted on streams and rivers throughout the Nation. Outside of the NAWQA project, the USGS also has collected long-term water-quality data to support additional assessments of changing water-quality conditions. These data have been combined to provide insight into how natural features and human activities have contributed... Categories: Data; Types: Citation; Tags: National Water Quality Program, USGS Science Data Catalog (SDC), United States, Water Quality, pesticides, All tags... streamflow, trends, usgsnawqaswtrends, water quality, Fewer tags Daily streamflow datasets used to analyze trends in streamflow at sites also analyzed for trends in water quality and ecological condition in the Nation's rivers and streams In 1991, the U.S. Geological Survey (USGS) began a study of more than 50 major river basins across the Nation as part of the National Water-Quality Assessment (NAWQA) project of the National Water-Quality Program. One of the major goals of the NAWQA project is to determine how water-quality conditions change over time. To support that goal, long-term consistent and comparable monitoring has been conducted on streams and rivers throughout the Nation. Outside of the NAWQA project, the USGS and other Federal, State, and local agencies also have collected long-term water-quality data to support their own assessments of changing water-quality conditions. Data from these multiple sources have been combined to support... Categories: Data Release - Revised; Types: Citation; Tags: National Water Quality Program, Puerto Rico, USGS Science Data Catalog (SDC), United States, Water Quality, All tags... daily streamflow, ecological streamflows, loads, pesticides, usgsnawqaswtrends, water quality, Fewer tags Groundwater Quality Data from the National Water Quality Assessment Project, May 2012 through December 2013 Groundwater-quality data were collected from 748 wells as part of the National Water-Quality Assessment Project of the U.S. Geological Survey National Water-Quality Program from May 2012 through December 2013. 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... Types: Citation; 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 Pesticides in Weekly Water Samples from the NAWQA Midwest Stream Quality Assessment (2013) Dissolved pesticides were measured in weekly water samples from 100 wadeable streams across eleven states in the Midwestern U.S. during May-August, 2013, as part of the Midwest Stream Quality Assessment study conducted by the U.S. Geological Survey's (USGS) National Water Quality Assessment (NAWQA) Project. Of the 100 stream sites, 12 were urban indicator sites and the remaining 88 sites were located along an agricultural gradient of watershed land use. Twelve depth- and width-integrated samples were collected at each site within the 14-week study period. Water samples were filtered (0.7 micrometers) and analyzed for 227 pesticide compounds by direct-injection liquid chromatography with tandem mass-spectrometry,... Categories: Data; Types: Citation; Tags: Corn Belt, Illinois, Indinana, Iowa, Kansas, All tags... Kentucky, Minnesota, Missouri, NAWQA, National Water Quality Assessment, National Water Quality Program, Nebraska, Ohio, South Dakota, USGS Science Data Catalog (SDC), United States, Water Resources, Wisconsin, aquatic insect communities, aquatic toxicity, fungicide, herbicide, insecticide, mixtures, pesticide, pesticide degradate, stream, water quality, Fewer tags Water-quality and streamflow datasets used in Seasonal Kendall trend tests for the Nation’s rivers and streams, 1972-2012 In 1991, the U.S. Geological Survey (USGS) began a study of more than 50 major river basins across the Nation as part of the National Water-Quality Assessment (NAWQA) project of the National Water-Quality Program. One of the major goals of the NAWQA project is to determine how water-quality conditions change over time. To support that goal, long-term consistent and comparable monitoring has been conducted on streams and rivers throughout the Nation. Outside of the NAWQA project, the USGS and other Federal, State, and local agencies also have collected long-term water-quality data to support their own assessments of changing water-quality conditions. Data from these multiple sources have been combined to support... Categories: Data; Types: Citation; Tags: National Water Quality Program, Puerto Rico, Seasonal Kendall, USGS Science Data Catalog (SDC), United States, All tags... Water Quality, carbon, nutrients, rivers, salinity, sediment, trends, usgsnawqaswtrends, Fewer tags Data and citations describing the connections between agriculture and water quality in the United States This U.S. Geological Survey data release provides the data and citations for selected tables and figures in “Agriculture-A river runs through it-The connections between agriculture and water quality”. This Circular is based on the National Water-Quality Assessment Project’s study of Agricultural Chemicals: Sources, Behavior, and Transport. This study focused on the connections between agriculture and water quality by examining multiple components of the hydrological system within agricultural areas to improve the understanding of how agricultural chemicals are transported into and through streams and groundwater. These data support the following publication: Capel, P.D., McCarthy, K.A., Coupe, R.H., Grey, K.M.,... Types: Citation; Tags: California, Georgia, Illinois, Indiana, Iowa, All tags... Kansas, Maryland, Minnesota, Mississippi, Missouri, National Water Quality Program, Nebraska, North Dakota, Ohio, Oregon, Pennsylvania, USGS Science Data Catalog (SDC), United States, Washington, Wisconsin, agriculture, evaporation, evapotranspiration, fungicide, herbicide, insecticide, pesticide, pesticide and herbicide contamination, photosynthesis, transformation product, transpiration, water quality, water table, Fewer tags Data Release for Metamodeling and Mapping of Nitrate Flux in the Unsaturated Zone and Groundwater, Wisconsin, USA Widespread nitrate contamination of groundwater in agricultural areas poses a major challenge to sustainable water resources. Efficient analysis of nitrate fluxes across large regions also remains difficult. This study introduces a method of characterizing nitrate transport processes continuously across regional unsaturated zones and groundwater based on surrogate, machine-learning metamodels of an N flux process-based model. The metamodels used boosted regression trees (BRTs) to relate mappable variables to parameters and outputs of a “vertical flux method” (VFM) applied in the Fox-Wolf-Peshtigo (FWP) area in Wisconsin. In this context, the metamodels are upscaling the VFM results throughout the region, and the... Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Fox River, Wisconsin, Hydrogeology, NAWQA, National Water Quality Program, Peshtigo River, Wisconsin, All tags... USGS Science Data Catalog (SDC), Water Quality, Wisconsin, Wolf River, Wisconsin, cycle 3, groundwater, metamodel, nawqa, nitrate flux, unsaturated zone, water quality, Fewer tags Nutrient and pesticide data collected from the USGS National Water Quality Network and previous networks, 1963-2016 The National Water Quality Network (NWQN) for Rivers and Streams includes 113 surface-water river and stream sites monitored by the U.S. Geological Survey (USGS) National Water Quality Program, National Water-Quality Assessment (NAWQA) Project. The NWQN includes 19 large river coastal sites, 44 large river inland sites, 30 wadeable stream reference sites, 10 wadeable stream urban sites, and 10 wadeable stream agricultural sites. In addition to the 113 NWQN sites, 3 large inland river monitoring sites from the USGS Cooperative Water Program are also included in this annual water-quality reporting Web site to be consistent with previous USGS studies of nutrient transport in the Mississippi-Atchafalaya River Basin.... Categories: Data; Types: Citation; Tags: National Water Quality Program, USGS Science Data Catalog (SDC), United States, Water Quality, nutrient content, All tags... pesticide and herbicide contamination, river systems, sediment transport, streamflow, water quality, Fewer tags Watershed boundaries for study sites of the U.S. Geological Survey Surface Water Trends project This product contains 1,297 watershed boundaries for water quality study sites of the U.S. Geological Survey (USGS) National Water Quality Program (NWQP) Surface Water Trends project. These include sites where water quality information was collected by both USGS and non-USGS agencies. The data consist of 1,285 boundaries in the conterminous United States, and 12 in Puerto Rico. Twenty-seven percent of boundaries were assembled from other efforts within the USGS which are using the same sites, and 73 percent of boundaries were created new for this project. The data are posted as a single shapefile with separate polygons for each boundary. Categories: Data; Types: Citation; Tags: Basin boundaries, Geographic Information Systems, Geospatial Analysis, Geospatial Datasets, NHDPlus, All tags... National Water Quality Program, Puerto Rico, USA, USGS Science Data Catalog (SDC), United States, United States of America, WBD, Watershed, Watershed Boundary Dataset, Watershed boundaries, inlandWaters, Fewer tags Data for Radium Mobility and the Age of Groundwater in Public-drinking-water Supplies from the Cambrian-Ordovician Aquifer System, North-Central USA High radium (Ra) concentrations in potable portions of the Cambrian-Ordovician (C-O) aquifer system were investigated using water-quality data and environmental tracers ( 3H, 3Hetrit, SF6 , 14C and 4Herad) of groundwater age from 80 public-supply wells (PSWs). Groundwater ages were estimated by calibration of tracers to lumped parameter models and ranged from modern (1 Myr) in the most downgradient, confined portions of the potable system. More than 80 and 40 percent of mean groundwater ages were older than 1000 and 50,000 yr, respectively. Anoxic, Fe-reducing conditions and increased mineralization develop with time in the aquifer system and mobilize Ra into solution resulting in the frequent occurrence of combined... Categories: Data; Types: Citation; Tags: Cambrian-Ordovician aquifer system, Illinois, Iowa, Michigan, Minnesota, All tags... NAWQA, National Water Quality Program, USGS Science Data Catalog (SDC), Wisconsin, alpha recoil, cycle 3, dissolved gas, groundwater age, lumped parameter modeling, nawqa, radium, radium 226 distribution coefficient, recharge temperature, water quality, Fewer tags County fresh-water withdrawal water use allocated to relevant land uses in the United States: 1985 to 2010 This product is a series of six national 1-kilometer (km) raster datasets, for five year intervals between 1985 and 2010, representing USGS Water Use "Total Fresh Water Withdrawals", allocated to areas of land use representing anthropogenic use. Pixels representing anthropogenic uses (urban, agriculture, and mining land uses) are derived from the NAWQA Wall-to-wall Anthropogenic Land-use Trends (NWALT) product (Falcone, 2015), a series of decadal national raster datasets for the period 1974-2012. The raster datasets created here are intended as a source of information for estimating water use for watersheds, at the scale of HUC12 watersheds and coarser. Units are millions of gallons per day (mgd) per square km. Types: Citation; Tags: Anthropogenic water use, Conterminous U.S., Dasymetric mapping, Freshwater withdrawals, Land use, All tags... NWALT, National Water Quality Program, USGS Science Data Catalog (SDC), United States, Water Resources, Water Use, inlandWaters, Fewer tags Code, data, executables, and other information used to run Unit Flows in Networks of Channels (UFINCH) - A method for simulating unit and daily flows in networks of channels described by NHDPlus using continuous flow data at U.S. Geological Survey streamgages This U.S. Geological Survey (USGS) data release contains the code, data, executables, and other information necessary to run the application Unit Flows in Networks of Channels (UFINCH). The UFINCH application is a computer code that utilizes the geospatial stream connectivity and catchment geometry described in National Hydrography Dataset Plus value added attributes (NHDPlus Version 2) to simulate unit (15-minute) flows in networks of channels, generally by use of daily flows at the most downstream stream segment in a basin at which a USGS streamgage is located. Preliminary testing indicates that UFINCH may be most applicable for simulating unregulated, non-estuarial, flows in basins as large as 3,000 square miles... Types: Citation; Tags: Hawaii, NHDPlus geospatial data describing stream networks, NWIS daily flows, National Water Quality Program, Puerto Rico, All tags... USGS Science Data Catalog (SDC), United States, Virgin Islands of the United States, geospatial datasets, stream-gage measurement, streamflow, surface water (non-marine), Fewer tags Data set used to develop a conceptual framework for effectively anticipating water-quality changes resulting from changes in agricultural activities This USGS data release contains 2013 streamflow, baseflow, and precipitation data from three hydrologically-diverse streams in the United States used to develop a conceptual framework for effectively anticipating water-quality changes resulting from changes in agricultural activities. The framework combined generalized concepts on the movement of water, the environmental behavior of chemicals and eroded soil, and the designed functions of various agricultural activities. The framework addresses the impacts on water quality of a broad range of agricultural chemicals and sediment across a variety of hydrologic settings. • Chesterville Branch near Crumpton, Maryland, (USGS site ID - 01493112) had substantial baseflow... Categories: Data; Types: Citation; Tags: Indiana, Kansas, Maryland, National Water Quality Program, USGS Science Data Catalog (SDC), All tags... agricultural management practices, agriculture, base flow, baseflow, chemical sorptivity, chemical transformation, chemical transport, flowpath, groundwater, groundwater flow, groundwater quality, hydrologic transit times, sediment transport, sorption, water chemistry, water quality, Fewer tags Probability distribution grids of dissolved oxygen and dissolved manganese concentrations at selected thresholds in drinking water depth zones, Central Valley, California The ascii grids represent regional probabilities that groundwater in a particular location will have dissolved oxygen (DO) concentrations less than selected threshold values representing anoxic groundwater conditions or will have dissolved manganese (Mn) concentrations greater than selected threshold values representing secondary drinking water-quality contaminant levels (SMCL) and health-based screening levels (HBSL) for water quality. The probability models were constrained by the alluvial boundary of the Central Valley to a depth of approximately 300 meters (m). We utilized prediction modeling methods, specifically boosted regression trees (BRT) with a Bernoulli error distribution within a statistical learning... Categories: Publication; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Boosted Regression Trees, California, Central Valley, California, Domestic Well Water Use, Drinking Water Use, All tags... Groundwater, Hydrogeology, National Water Quality Program, Predictive Modeling, Public Supply Water Use, Statistical Analysis, USGS Science Data Catalog (SDC), United States, Visualization Methods, Water Quality, Water Resources, Fewer tags Nutrient and pesticide data collected from the USGS National Water Quality Network and previous networks, 1980-2015 The National Water Quality Network (NWQN) for Rivers and Streams includes 113 surface-water river and stream sites monitored by the U.S. Geological Survey (USGS) National Water Quality Program, National Water-Quality Assessment (NAWQA) Project. The NWQN includes 19 large river coastal sites, 44 large river inland sites, 30 wadeable stream reference sites, 10 wadeable stream urban sites, and 10 wadeable stream agricultural sites. In addition to the 113 NWQN sites, 3 large inland river monitoring sites from the USGS Cooperative Water Program are also included in this annual water-quality reporting Web site to be consistent with previous USGS studies of nutrient transport in the Mississippi-Atchafalaya River Basin.... Categories: Data; Types: Citation; Tags: National Water Quality Program, USGS Science Data Catalog (SDC), United States, nutrient content, pesticide and herbicide contamination, All tags... river systems, sediment transport, streamflow, water quality, Fewer tags County-Level Estimates of Nitrogen and Phosphorus from Commercial Fertilizer for the Conterminous United States, 1987-2012 This data set contains county-level estimates of nitrogen and phosphorus from fertilizer, for both farm and nonfarm uses, for the conterminous United States, for 1987 through 2012. State-level farm and nonfarm nitrogen and phosphorus were derived from the Association of American Plant Food Control Officials (AAPFCO) commercial fertilizer sales data. State estimates were then allocated to the county-level using fertilizer expenditure from the Census of Agriculture as county weights for farm fertilizer, and effective population density as county weights for nonfarm fertilizer. Data computations for 2007 - 2012 estimates are results of methods applied directly from Gronberg and Spahr, 2012. Data for 1987 - 2006 are... Categories: Data; Types: Citation; Tags: Agricultural, Conterminous United States, Ecology, Farm, Fertilizer, All tags... Geography, Land Use Change, National Water Quality Program, Nitrogen, Nutrient, Phosphorus, USGS Science Data Catalog (SDC), Water Quality, Water Resources, inlandWaters, nonFarm, Fewer tags Ecological community datasets used to evaluate the presence of trends in ecological communities in selected rivers and streams across the United States, 1992-2012 In 1991, the U.S. Geological Survey (USGS) began a study of more than 50 major river basins across the Nation as part of the National Water-Quality Assessment (NAWQA) project of the National Water-Quality Program. One of the major goals of the NAWQA project is to determine how water-quality and ecological conditions change over time. To support that goal, long-term consistent and comparable ecological monitoring has been conducted on streams and rivers throughout the Nation. Fish, invertebrate, and algae data collected as part of the NAWQA program were retrieved from the USGS Aquatic Bioassessment database for use in trend analysis. Ultimately, these data will provide insight into how natural features and human... Types: Citation; Tags: Ecology, National Water Quality Program, USGS Science Data Catalog (SDC), United States, aquatic, All tags... biology, diatoms, ecology, fish, invertebrates, river, stream, trend, usgsnawqaswtrends, wadeable, Fewer tags Water-quality and streamflow datasets used in the Weighted Regressions on Time, Discharge, and Season (WRTDS) models to determine trends in the Nation’s rivers and streams, 1972-2012 In 1991, the U.S. Geological Survey (USGS) began a study of more than 50 major river basins across the Nation as part of the National Water-Quality Assessment (NAWQA) project of the National Water-Quality Program. One of the major goals of the NAWQA project is to determine how water-quality conditions change over time. To support that goal, long-term consistent and comparable monitoring has been conducted on streams and rivers throughout the Nation. Outside of the NAWQA project, the USGS and other Federal, State, and local agencies also have collected long-term water-quality data to support their own assessments of changing water-quality conditions. Data from these multiple sources have been combined to support... Categories: Data Release - Revised; Types: Citation; Tags: National Water Quality Program, Puerto Rico, USGS Science Data Catalog (SDC), United States, WRTDS, All tags... Water Quality, Water Resources, carbon, discharge, nutrients, rivers, salinity, sediment, trends, usgsnawqaswtrends, weighted regression, Fewer tags Datasets and metadata for estimates of nitrate loads and yields from groundwater to streams in the Chesapeake Bay watershed based on land use and geology This USGS data release contains datasets, metadata, and figures associated with estimating nitrate loads and yields from groundwater to streams in the Chesapeake Bay watershed based on land use and geology. There are three shapefiles with associated metadata and figures representing the shapefiles: • Catchments_GWcontribN.shp: NHDPlus catchment estimates of groundwater contribution of nitrate to streams in the Chesapeake Bay watershed • HUC12_GWcontribN.shp: HUC 12 estimates of groundwater contribution of nitrate to streams in the Chesapeake Bay watershed • Sites_GWcontribN.shp: Sites with baseflow measurements for nitrate plus nitrite within the Chesapeake Bay watershed These data support the following publication:... Types: Citation; Tags: Chesapeake Bay, Delaware, District of Columbia, Maryland, National Water Quality Program, All tags... New York, Pennsylvania, USGS Science Data Catalog (SDC), Virginia, West Virginia, baseflow, groundwater, nitrate, water quality, Fewer tags