Variables: waterlevel oxygen_saturation alkalinity total_cell_concentration hydraulic_conductivity Keywords: groundwater denitrification riparian zone Substances: Sulfate (InChI=1S/H2O4S/c1-5(2,3)4/h(H2,1,2,3,4)/p-2 Krypton (InChI=1S/Kr) Nitrate (InChI=1S/NO3/c2-1(3)4/q-1)