Department of Environment, Society and Design, Lincoln University, Lincoln 7647, New Zealand; Waterways Centre for Freshwater Management, University of Canterbury, Private Bag 4800, Christchurch, New Zealand; Corresponding author.
Leanne Morgan
Waterways Centre for Freshwater Management, University of Canterbury, Private Bag 4800, Christchurch, New Zealand; College of Science and Engineering, Flinders University, GPO Box 2100, Adelaide SA 5001, Australia
Crile Doscher
Department of Environment, Society and Design, Lincoln University, Lincoln 7647, New Zealand; Waterways Centre for Freshwater Management, University of Canterbury, Private Bag 4800, Christchurch, New Zealand
Kelvin Ng
Tonkin & Taylor Limited, 51 Halifax Street, Nelson 7010, New Zealand
Amandine Bosserelle
Department of Civil and Natural Resources Engineering, University of Canterbury, Ilam, Christchurch, New Zealand; WSP, 12 Moorhouse Avenue, Addington, Christchurch 8011, New Zealand
Shallow groundwater quality and level across the low-lying coastal city of Christchurch, New Zealand were surveyed at a high spatial resolution (1.3 piezometers/km2) in the spring of 2020. The groundwater quality parameters recorded across 99 piezometers include specific conductance, temperature, pH, and dissolved oxygen, following the pumping of approximately three bore volumes. Additionally, 27 out of 99 piezometers were analysed for chloride concentration and alkalinity as calcium carbonate. This dataset is useful to explore shallow groundwater conditions and how these might impact co-existing subsurface infrastructure and ecosystems. Furthermore, this dataset provides a valuable point of comparison against future changes, for example due to increased seawater intrusion, pollution events, or groundwater level rise.
