Results 151 to 160 of about 71,442 (339)
Groundwater, EarlyView.Pit lakes in semiarid and arid regions are often assumed to be terminal sinks for groundwater following mine closure. Using synthetic numerical modeling, we demonstrate that evaporation‐driven density gradients can reverse this behavior, transforming pit lakes into throughflow systems and potentially increasing salinity in adjacent aquifers.
Birte Moser +3 more
wiley +1 more source
Hydrogeology of Closed Basins and Deserts of South America, ERTS-1 Interpretations [PDF]
Hydrogeology of closed basins and deserts of South America (Bolivia, Argentina, Chile, and Peru), ERTS-1 ...
Carter, W. D., Stoertz, G. E.
core +2 more sources
Considerations for the Design of Sinusoidal Slug Testing Methods
Groundwater, EarlyView.Periodic hydraulic tests estimate aquifer properties using controlled groundwater‐level oscillations. Evaluating two sinusoidal slug‐test designs shows large motion errors when transfer‐link and flywheel ratios are high or variable. Rotating‐drive mechanisms are therefore suboptimal; stepper‐motor winches generate more accurate sinusoidal motion ...
Chris Turnadge +2 more
wiley +1 more source
Temporal Evolution of Contaminant Mass Discharge: Effect of Source Remediation at Contaminated Sites
Groundwater Monitoring &Remediation, EarlyView.Abstract Contaminant mass discharge (CMD) is a key metric for evaluating remediation performance at contaminated sites posing a risk to groundwater. This study assesses temporal CMD trends and associated uncertainties using a geostatistical approach at a chlorinated solvent contaminated site following source zone remediation, supported by two decades ...
Anton Bøllingtoft +4 more
wiley +1 more source
The SADC Groundwater Data and Information Archive, Knowledge Sharing and Co-operation Project. Final report [PDF]
, 2011 The Southern African Development Community (SADC) Groundwater Data and Information Archive, Knowledge Sharing and Co-operation Project, funded by the German Development Cooperation (GIZ) and Department for International Development, UK (DFID), was ...
Cobbing, J. +3 more
core
Groundwater Monitoring &Remediation, EarlyView.Abstract At many sites, chlorinated ethenes in some of the monitoring wells remain above cleanup goals, even though the water produced by the pumped wells of the pump‐and‐treat system meets the goals. Regulators and site risk managers need tools to determine whether it is appropriate to shut‐down the pump‐and‐treat system and transition to monitored ...
John T. Wilson +8 more
wiley +1 more source
Inflow and Loadings from Ground Water to the Great Bay Estuary, New Hampshire [PDF]
, 2004 This final report presents the results of a study to evaluate groundwater inflow and nutrient loadings to the Great Bay Estuary, New Hampshire. The evaluation of inflow was accomplished independently by two methods: one, used thermal imagery, and the ...
Ballestero, Thomas P. +2 more
core +1 more source
Groundwater Monitoring &Remediation, EarlyView.Abstract Characterizing the concentration and mass flux spatial distributions at sites with complex hydrogeologic conditions is critical to evaluate the fate and transport of contaminants, as well as to design effective remediation programs. PFAS (per‐ and polyfluoroalkyl substances)‐contaminated sites are even more complex due to the large number of ...
W. Andrew Jackson +8 more
wiley +1 more source
Water and Environment Journal, EarlyView.ABSTRACT The presence of microplastics (MPs) in groundwater has emerged as a significant concern due to their environmental impact and the threat they pose to vital water resources, groundwater being one of the most important freshwater sources in the world.
Lara Luiza de Oliveira Pompermayer +7 more
wiley +1 more source