His research interests include evaluating the impacts of the developed environment on environmental quality. The majority of his research relates to evaluating the impacts of impervious surface on receiving waters and evaluating mitigation practices for controlling stormwater runoff. His expertise is in design, monitoring, simulation, and evaluation of stormwater control measures. Dr. Bean also has research interests in non-point source nutrient loadings from wastewater treatment and impacts of flow regime change on stream ecological function.