Stewart, M.K. 2008 Age and source of Wairau Plains groundwater. Lower Hutt, N.Z.: GNS Science. GNS Science report 2008/18 18 p.
Abstract: Isotopic measurements are interpreted to reveal the ages (i.e. mean residence times) and (recharge) sources of groundwater in the Wairau Plains. The information is presented in maps to give a quick visual impression of the important flow processes in the groundwater in each area. (auth)