My research is focused on determining the factors influencing groundwater organic matter character and concentration. The terrestrial surface water carbon cycle is a significant carbon sink, but the cycling of organic carbon in groundwater is largely unquantified. By quantifying the climatic and chemical variables which affect groundwater dissolved organic matter concentrations determining where and when groundwater is a carbon source or sink, I can help guide policy which will enable the management of the groundwater resource as part of the carbon economy.