Dr. Heikoop is an isotope geochemist with research interests including 1) the use of nitrogen, carbon, chlorine, oxygen, deuterium and sulfur isotopes as geochemical tracers of pollution; 2) contaminant dynamics in complex surface and subsurface environments; and 3) reconstructing paleoclimate records from the lake sediments, bogs, corals and tree rings. He has a Ph.D. degree in geology from McMaster University and is currently a Project Leader in the LANL Water Stewardship Program.