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Found 320 dataset(s) matching "Quality control, quality assurance".
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This dataset contains the lithologic class and topographic position index information and quality-assurance and quality-control data not available in the online National Water Information System...
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In June and July of 2020, 45 groundwater wells in McHenry County, Illinois, were sampled for water quality (field properties, major ions, nutrients, and trace metals) and 12 wells were sampled for...
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Data quality assurance and quality control are critical to the effective conduct of a clinical trial. In the present commentary, we discuss our experience in a large, multicenter stroke trial. In...
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This data record contains questions and responses to a USGS-wide survey conducted to identify issues and needs associated with quality assurance and quality control (QA/QC) of USGS timeseries data...
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Overview of the quality assurance and quality control that supports the data analysis across all papers. This dataset is associated with the following publication: Batt , A., E. Furlong, H. Mash...
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The USGS Precipitation Chemistry Quality Assurance Project (PCQA) operates QA programs to challenge and test the National Atmospheric Deposition Program (NADP) data-collection processes for both...
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The USGS Precipitation Chemistry Quality Assurance Project (PCQA) operates QA programs to challenge and test the National Atmospheric Deposition Program (NADP) data-collection processes for both...
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Watershed Data Management (WDM) database file WBDR18.WDM is updated with the quality-assured and quality-controlled meteorological and hydrologic data for the period October 1, 2018, through...
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The WDM database SC17.WDM is updated with the quality-assured and quality-controlled (QA/QC) data from October 1, 2017, through September 30, 2018, and renamed as SC18.WDM. Meteorological data...
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The U.S. Geological Survey (USGS) in cooperation with the Miami Conservancy District, Dayton, Ohio, in 2019 and 2020 collected and analyzed groundwater samples and quality-control samples to...
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As part of the Glassmeyer et al., (2023) review for the journal GeoHealth, the data from 84 journal articles was summarized. One of the metrics captured in the summary was the different types of...
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These data contain concentrations of major and trace elements in quality-assurance samples.These are the machine-readable versions of Tables 2–5 from the U.S. Geological Survey Scientific...
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This data release provides several data files representing groundwater levels reported through driller's reports for the State of Louisiana Department of Natural Resources (Louisiana Department of...
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<p>[ NOTE – 2022/05/06: this dataset is superseded by an updated version <a href="https://doi.org/10.15482/USDA.ADC/1526433">https://doi.org/10.15482/USDA.ADC/1526433</a> ] The dataset contains...
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The Micronutrients Measurement Quality Assurance Program (MMQAP) was coordinated by the Chemical Sciences Division and supported measurement technology for selected fat- and water-soluble vitamins...
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The California Groundwater Ambient Monitoring and Assessment Program Priority Basin Project (GAMA-PBP) analyzed per-and polyfluoroalkyl substances (PFAS) in groundwater samples collected from...
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Beaver Lake was constructed in 1966 on the White River in the northwest corner of Arkansas for flood control, hydroelectric power, public water supply, and recreation. The surface area of Beaver...
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From July to November 2019, 48 environmental samples and four quality assurance and quality control samples were collected throughout the Lake Champlain and Susquehanna River Basins. Samples were...
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The U.S. Geological Survey (USGS), in cooperation with DuPage County Stormwater Management Department, maintains a watershed data management (WDM) database of hourly meteorological and hydrologic...
