On the Atlantic coast of the United States, the Battelle laboratory in Duxbury, Massachusetts, is internationally recognized for staff expertise in risk-based organic analytical chemistry. Duxbury researchers are also the foremost experts in the field of Environmental Forensics™, the characterization of petroleum hydrocarbon compounds through advanced hydrocarbon fingerprinting techniques, site-specific geology and hydrogeology, fate and transport modeling, chemometrics, and visualization, among other techniques, to provide answers to questions of contaminant source and ownership. Battelle has owned and operated this world-class laboratory since 1964.