Conceptual model of groundwater site
Insights gained from stable isotopes and environmental tracers in this study allow a conceptual model to be built that provides information pertinent to groundwater mixing and transport, sulfide oxidation mechanisms, and timeframes of remediation. This conceptual model of the site (not to scale) is based on hydrologic and geochemical data. Piston flow and dispersion flow are denoted using different symbolized arrows. Groundwater residence time (τGW) and residence time in the workings (τW) are differentiated. A conceptual cross-sectional plot of relative intensity of sulfide oxidation, physical groundwater connectivity, and groundwater age mixing is shown on the bottom.