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Filters: Types: OGC WMS Layer (X) > partyWithName: R Blaine McCleskey (X)

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There are over 10,000 hydrothermal features in Yellowstone National Park (YNP), where waters have pH values ranging from about 1 to 10 and surface temperatures up to 95 °C. Active geothermal areas in YNP provide insight into a variety of processes occurring at depth, such as water-rock and oxidation-reduction (redox) reactions, the formation of alteration minerals, and microbial (thermophile) metabolism in extreme environments. Investigations into the water chemistry of YNP hot springs, geysers, fumaroles, mud pots, streams, and rivers have been conducted by the U.S. Geological Survey (USGS) and other earth-science organizations and academic institutions since 1888 (Gooch and Whitfield, 1888). More recently, USGS...
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The USGS National Field Manual (NFM) states “A representative sample is one that typifies in time and space that part of the aqueous system to be studied” and “obtaining representative samples is of primary importance for a relevant description of the environment.” The NFM contains detailed chapters on the best practices for representative and contamination free sampling of major and trace metals (U.S. Geological Survey 2006). However, as analytical capabilities have advanced and new preservation methods developed, there is a need to study the effectiveness of various amounts of nitric acid preservation for trace metals and major cations in surface water and groundwater. The amount of nitric acid prescribed by...
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Yellowstone National Park (YNP; Wyoming, Montana, and Idaho, USA) contains more than 10,000 hydrothermal features, several lakes, and four major watersheds. For more than 140 years, researchers at the U.S. Geological Survey and other scientific institutions have investigated the chemical compositions of hot springs, geysers, fumaroles, mud pots, streams, rivers, and lakes in YNP and surrounding areas. Water chemistry studies have revealed a range of compositions including waters with pH values ranging from about 1 to 10, surface temperatures from ambient to superheated values of 95°C, and elevated concentrations of silica, lithium, boron, fluoride, mercury, and arsenic. Hydrogeochemical data from YNP research have...
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In the United States and globally, the lack of data on contaminant exposure from unregulated private-well point-of-use (POU) tapwater (TW) is a recognized public health data gap and an obstacle to risk management and homeowner decision making. Mead, Nebraska, is an agricultural community about 30 miles west of Omaha. To help address the lack of data on broad contaminant exposures in TW sourced from private water wells, a total of 22 samples were collected from 18 private wells during June 2022 and January 2023 and analyzed for 495 organic compounds, 34 inorganic constituents, and 11 microbial groups. The organic compounds included pesticides, pharmaceuticals, volatile organic compounds (VOCs), disinfection byproducts...
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The Tenaya Lake Water Budget Study seeks to quantify and understand the water balance within the principal snow accumulation and runoff yielding zone in the Sierra Nevada Mountains. The Study operates stage sensors and data loggers to record Tenaya Lake inflows, water surface elevation, and outflow, with continuous annual data collection for the 21 square-kilometer watershed located in the alpine zone of Yosemite National Park. The Study began in September 2005 and includes discharge and water quality measurements. Water samples have been collected at several gage locations and analyzed for an extensive panel of dissolved constituents. Tenaya Lake lies in a glacially-scoured granitic basin. Murphy Creek, Tenaya...
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The total concentration of dissolved constituents in water is routinely quantified by measurements of salinity or total dissolved solids (TDS). However, salinity and TDS are operationally defined by their analytical methods and are not equivalent for most waters. Furthermore, multiple methods are available to determine salinity and TDS, and these methods have inherent differences. TDS is defined as the mass of anhydrous residue remaining in a sample vessel after evaporation and subsequent oven drying at a defined temperature. Salinity is a measure of the mass of dissolved salts in a given mass of solution. In addition, there are approaches that quantify the total solute (TS) concentration, including gases. PHREECI...
Chemical and isotopic analyses are reported for water samples collected from water supply wells, a geothermal well in the Puna Geothermal Venture (PGV) power plant, a hot spring in the Puna District, a research well on the summit of Kīlauea Volcano (informally called “NSF Well”, or “Keller Well ”), and a water catchment in the headquarters area of Hawai'i Volcanoes National Park, Hawai'i. These water samples were collected and analyzed as part of research investigations on the potential impact of the 2018 Kilauea lower East Rift Zone and summit eruption on water supplies. The presented data allow for a comparison with data from an investigation carried out prior to the 2018 eruption (Evans and others, 2015 ). Water...
    map background search result map search result map Groundwater chemistry in the Lower East Rift Zone and summit of Kīlauea Volcano, Hawai'i Streamflow and water chemistry in the Tenaya Lake Basin, Yosemite National Park, California Water-Chemistry and Isotope Data for Selected Springs, Geysers, Streams, and Rivers in Yellowstone National Park, Wyoming Evaluation of preservation techniques for trace metals and major cations for surface waters collected from the U.S. Geological Survey's National Water Quality Network Sites Salinity and total dissolved solid determinations using PHREEQCI Chemical Concentrations and Microbiological Results for Assessment of Mixed-Organic/Inorganic Chemical Exposures in Tapwater in Mead, Nebraska, June 2022 and January 2023 Historic Water Chemistry Data for Thermal Features, Streams, and Rivers in the Yellowstone National Park Area, 1883-2021 Streamflow and water chemistry in the Tenaya Lake Basin, Yosemite National Park, California Chemical Concentrations and Microbiological Results for Assessment of Mixed-Organic/Inorganic Chemical Exposures in Tapwater in Mead, Nebraska, June 2022 and January 2023 Water-Chemistry and Isotope Data for Selected Springs, Geysers, Streams, and Rivers in Yellowstone National Park, Wyoming Historic Water Chemistry Data for Thermal Features, Streams, and Rivers in the Yellowstone National Park Area, 1883-2021 Groundwater chemistry in the Lower East Rift Zone and summit of Kīlauea Volcano, Hawai'i Evaluation of preservation techniques for trace metals and major cations for surface waters collected from the U.S. Geological Survey's National Water Quality Network Sites Salinity and total dissolved solid determinations using PHREEQCI