Description

The interaction of surface and groundwater (e.g., the recharge of precipitation into the groundwater aquifer and the dynamics of groundwater levels) is of paramount importance in the sustainable use of groundwater resources and the prevention/remediation of groundwater contamination. The main objective of this research is to use stable isotope (i.e., H-2 and O-18) to quantify the dynamic interactions of surface and groundwater at Cedarburg Bog. Using the experimental data, the student will use appropriate hydrological models that he has learned in the Environmental Surface Hydrology class to simulate the interactions between surface water (including rainwater) and groundwater.

Tasks and Responsibilities

The student will perform the sample collection, isotope analysis and data quantification. Briefly, rain water samples and well water samples will be collected at Cedarburg Bog (UWM research station) These samples will be analyzed for stable hydrogen and oxygen isotopes (i.e. H-2 and O-18) because there are good tracers of water sources. The data will be grouped and plotted in a time series on Microsoft Excel. Stable isotope ratios of Oxygen-18 and Hydrogen-2 are depleted in surface water in the winter and early spring, and water is enriched in theses isotopes in summer and early fall. These ratios will be used to identify the source and timing of groundwater flow, and help to assess the vulnerability of wells to surface water infilitration and possible contaminants in the surface water.

Desired Qualifications

None Listed