12 years experience analyzing environmental data in support of human health and ecological data risk-based decision with a focus on large datasets. Specialties include exposure modeling, probabilistic modeling, predictive modeling and numerical analysis. My strong understanding of the relationship among the different facets of an environmental investigation allows me to quickly develop practical and efficient approaches to problem definition, sampling design and data analysis. I possess strong statistical computing skills in SAS, R, Matlab, Access and Excel. My publications on chemical mixtures have become important to the US EPA for use in developing drinking water regulatory guidelines.