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Found 913 dataset(s) matching "National Water Quality Assessment".
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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,...
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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...
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This is a GENERALIZED version of the boundaries and codes used for the U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program Study-Unit investigations in the conterminous...
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This is a coverage of the boundaries and codes used for the U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program Study-Unit investigations in the conterminous United States,...
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This dataset represents water quality chemistry information for Fagatele Bay, a unit of the National Marine Sanctuary of American Samoa (NMSAS). Contaminant groups quantified were: pesticides,...
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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...
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The Southeast Coast Network assessed water-quality at Fort Matanzas National Monument as part of the National Park Service Vital Signs Monitoring Program. Monitoring was conducted following...
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This dataset includes Gross Primary Production (GPP) estimates at 46 agricultural streams around the United States. GPP values are based upon the single-station dissolved oxygen method with data...
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As part of the U.S. Geological Survey's National Water-Quality Assessment Program, an investigation of the Yellowstone River Basin study unit is being conducted to document status and trends...
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In 2002, the Environmental Protection Agency (EPA) Environmental Monitoring and Assessment Program (EMAP) National Coastal Assessment (NCA), in conjunction with state agencies, Region 9, and the...
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Water quality tabular dataset provided by the USGS National Water Quality Laboratory in Denver, Colorado.
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Water quality tabular dataset provided by the USGS National Water Quality Laboratory in Denver, Colorado.
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Water quality tabular dataset provided by the USGS National Water Quality Laboratory in Denver, Colorado.
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Water quality tabular dataset provided by the USGS National Water Quality Laboratory in Denver, Colorado.
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EPA's 2016 National Wetland Condition Assessment sampled wetlands across the conterminous USA for vegetation, soils, water chemistry, and anthropogenic impacts. Data for all of these elements of...
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The Southeast Coast Network assessed water-quality at Cumberland Island National Seashore as part of the National Park Service Vital Signs Monitoring Program. Monitoring was conducted following...
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This dataset represents three years of water quality data collected in Vatia Bay, American Samoa. A standard suite of nutrient parameters (nitrate, nitrite, ammonium, urea, total nitrogen,...
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The Southeast Coast Network assessed water-quality at Fort Pulaski National Monument as part of the National Park Service Vital Signs Monitoring Program. Monitoring was conducted following methods...
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In 2004, the Environmental Protection Agency (EPA) Environmental Monitoring and Assessment Program (EMAP) National Coastal Assessment (NCA), coordinated through the Gulf Ecology Division,...
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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...
