Nitrate Isotopic Composition and Ancillary Variables (Land Use, Redox, Excess N2, Age, Water Isotopics) in California Groundwater : The GAMA Database

Nathan Veale1, Jean E Moran2, Ate Visser3, Michael J Singleton3 and Brad Esser3, (1)California State University East Bay, Hayward, CA, United States, (2)California State University East Bay, Department of Earth and Environmental Sciences, Hayward, United States, (3)Lawrence Livermore National Laboratory, Livermore, CA, United States