Delineation of areas having elevated electrical conductivity, orientation and characterization of bedrock fractures, and occurrence of groundwater discharge to surface water at the U.S. Environmental Protection Agency Barite Hill/Nevada Goldfields Superfund site near McCormick, South Carolina

Chapman, Melinda J.; Huffman, Brad A.; McSwain, Kristen Bukowski

doi:10.3133/sir20155084

Cited by 2 publications

(2 citation statements)

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“…The hydrogeological settings are mainly dominated by the lithological properties of the selected study area where porosity or secondary porosity (e.g., fracture) can provide space to store and trap water [30][31][32][33][34][35]. This information is included in the map of the hydrogeological unit to provide a conceptual hydrogeological model and characteristics [36][37][38][39].…”

Section: Regolith and Fractured Bedrockmentioning

confidence: 99%

“…In terms of experimental hydraulic parameters (Figure 2), the storage, permeability, and porosity of regolith are generally higher than those of bedrock [27,[40][41][42]. However, groundwater in bedrock The hydrogeological settings are mainly dominated by the lithological properties of the selected study area where porosity or secondary porosity (e.g., fracture) can provide space to store and trap water [30][31][32][33][34][35]. This information is included in the map of the hydrogeological unit to provide a conceptual hydrogeological model and characteristics [36][37][38][39].…”

Section: Hydrogeological Propertiesmentioning

confidence: 99%

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Integrating In-Situ Data and RS-GIS Techniques to Identify Groundwater Potential Sites in Mountainous Regions of Taiwan

Lin

Liou

2020

Applied Sciences

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Due to rapid urbanization, the development of megacities and metropolises worldwide is creating water scarcity, social-environmental risk, and challenges to the regions where water supply from rivers and alluvial aquifers is insufficient and unstable. Groundwater exploration in fractured bedrock of mountainous regions is thus a crucial issue in the search for substitute water resources. To achieve cost effectiveness on groundwater exploration, the use of comprehensive remote sensing (RS)- and geographic information system (GIS)-based models appears feasible. The required parameters selected and analyzed from the literature depend on the hydrogeological characteristics. This study intends to investigate and improve the proposed parameters and data sources upon those presented in the literature. A total of 17 hydrogeological units of concern was delineated from 105 complex geological formations of the geological sections and main rock types. The other parameters related to groundwater potential were derived from the digital elevation model and Landsat imagery. In addition, 118 drilling cores were inspected and in-situ well yield data from 72 wells were employed to assess the normalized groundwater potential index in the raster-based empirical GIS model with a higher spatial resolution. The results show that the accuracy of the interpretation of groundwater potential sites improved from 48.6% to 84.7%. The three-dimensional (3D) visualization of a thematic map integrated with satellite imagery is useful as a cost-effective approach for assessing groundwater potential.

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