groundwater chemistry, acid mine drainage, abandoned mine reclamation, stable isotopes, geochemical modeling, coal ash, FGD - residue, hydrology issues, geochemistry

• Geochemical characterization of coal-combustion byproducts and numerical simulations of their long-term effects as capping materials at coal mine reclamation sites
• Mineral formation and the fate of iron, aluminum and sulfur within field-scale sulfate-reducing bioreactors
• Carbon isotopes as a basis for evaluating alkalinity generation over time with a sulfate-reducing bioreactor in south-central Indiana
• Weathering and leaching characteristics of a fixated scrubber sludge cap at an abandoned mine site in Pike County, Indiana
• Physico-chemical assessment of a fixated flue-gas desulfurization sludge cap emplaced along with other coal-combustion residues to abate acid mine drainage

• Critical zone karst observatory
• IDEM RiverWatch Program
• 2017 StateMap Project 1_Logansport 1:100,000 scale quadrangle bedrock mapping
• Groundwater geochemistry of Indiana aquifers: database development and analysis of the natural chemical character of bedrock and glacial aquifer systems
• Sulfates in Indiana Substrates