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Showing 1 to 13 of 13 for “"Groundwater--North Dakota"”.

  1. Groundwater flow in part of the Little Missouri River Basin, North Dakota

    Hamilton, Thomas M.

    <p> The Little Missouri valley in western North Dakota is deeply incised into slightly permeable Mesozoic and Cenozoic sediments. An evaluation of the groundwater flow in part of this valley was 'based on the present groundwater flow-system models. Abrupt changes in the hydrochemical facies have …

    nodak Repository record

  2. The occurrence and distribution of selenium in North Dakota ground waters

    Peterson, Hjalmer V.

    nodak Repository record

  3. The effects of seismic blasting on shallow water wells and aquifers in western North Dakota

    Beaver, Frank W., Jr. P. E.

    <p>Seismographic petroleum exploration throughout North Dakota has generated concern over the effects of blasting on groundwater supplies and wells. A preliminary investigation revealed complaints alleging declining productivity and decreased water quality in regions where coal aquifers are …

    nodak Repository record

  4. Hydrology of the springs, seeps, and fens at The Nature Conservancy's Pigeon Point Preserve, Ransom County, North Dakota

    Askin, Corey W.

    … part of the Sheyenne Delta Aquifer, southeastern North Dakota. Groundwater discharges along a north-facing bluff at Pigeon Point and forms springs, seeps, and fens 'hosting atypical boreal species. The Nature Conservancy owns 231 ha at Pigeon Point, a tract that also includes the largest and least …

    nodak Repository record

  5. The geohydrology and hydrogeochemistry of the proposed Garrison Lignite Mine

    Morin, Kevin

    <p>A local groundwater study is a necessity before the opening of any lignite mine in North Dakota. The study becomes an important reference for the environmental impact during mining and after reclamation.</p> <p>This report is a groundwater study of the Proposed Garrison Lignite Mine, McLean …

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  6. Hydrogeology of a sanitary landfill, Mandan, North Dakota

    Butler, Raymond D.

    … study can be applied to much of southwestern North Dakota because the geologic and climatic conditions are similar. </p><p> The Mandan landfill is on the Heart River floodplain and next to the river on the north and steep valley wall on the south. The sanitary landfill bas been used for over …

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  7. Groundwater of the Spiritwood Lake area, Stutsman County, North Dakota

    Schulte, Frank J.

    … undulating to rolling glacial plain 17 miles north and east of Jamestown, North Dakota. Spiritwood Lake is about 50 feet below the surface of the bedrock plain in a former melt-water channel. In the study area, glacial drift unconformably overlies the Pierre Shale, the youngest pre-Pleistocene …

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  8. Isotopic Tracers as Evidence of Denitrification in the Karlsruhe Aquifer

    Spencer, Eben J.

    <p>The Karlsruhe Aquifer of north-central North Dakota has experienced considerable nitrate contamination sparking an investigation by the North Dakota State Water Commission. Certain portions of the aquifer have experienced nitrate-N concentrations of up to seven times the drinking water standard. …

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  9. The geochemical evolution of saline groundwater within a fresh water aquifer south of Oakes, North Dakota

    Williams, David L.

    <p>An area of saline/brackish groundwater south of Oakes, North Dakota has been reported by the North Dakota State Water Commission. The concentrated water (over 12,000 mg/L of total dissolved solids) is in direct hydraulic connection with relatively fresh water and shows an abrupt change in …

    nodak Repository record

  10. The effect of oil-and-gas well drilling fluids on shallow groundwater in western North Dakota

    Murphy, Edward C.

    <p> Upon completion of an oil-and-gas well in North Dakota the drilling fluid is buried in the reserve pit at the site. Reclamation of the drill site is expedited by digging a series of trenches which radiate out from the reserve pit, The majority of buried drilling fluid is ultimately contained …

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  11. Modeling Groundwater Denitrification by Ferrous Iron Using PHREEQC

    Tesfay, Tedros

    <p>Nitrate is one of the most common groundwater contaminants, and ingesting it leads to potential health risks. Denitrification, the only effective process to eliminate nitrate, is limited by the abundance of biologically available electron donors. Thus, understanding the natural denitrification …

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  12. Hydrologic factors affecting the discharge of ground water in the Red River of the North Basin, northeastern North Dakota

    Strobel, Michael Lee

    … amounts of salinity to the Red River of the North. The area of major discharge is represented on the land surface by saline soils, wetlands, and flowing wells. As tributaries flow through these areas, the dissolved-solids concentrations in the streams increase. This salinity is then …

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  13. Hydrogeological characterization of the Akzo Salt Company, Williston Facility, Williston, North Dakota

    Geiger, Jane K.

    … of Stony Creek and waste salt is buried just north of the plant. The salt dump poses surface and groundwater hazards. A recent flood on the plant site in August of 1993 resulted in groundwater corning into contact with buried salt. Groundwater quality and water level elevation data collected …

    nodak Repository record