Volume 64, 2025 | Special edition

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Number 1 

• Helen Rutter and Jaco Fourie

  Nitrate-N concentrations in the Christchurch-West Melton Zone, Canterbury: an update based on newly available historical groundwater quality data

• Zeb Etheridge, Matt Dumon and Evelyn Charlesworth Causes and consequences of rising groundwater levels in the shallow Christchurch aquifer system

• Helen K. Rutter, Amandine Bosserelle, Marion R. Schoenfeld, Simon C. Cox, Julian J. Weir, Rachel Teen and Leanne K. Morgan History and use of Ōtautahi/Christchurch’s shallow groundwater monitoring network

  
  

• Helen Rutter, Iain Haycock and Ross Hector Ground source heat pump systems in Christchurch: history, issues and opportunities

  
  

• Lennard J. Brown and Carl R. Hanson Late-Quaternary stratigraphy of the Christchurch Artesian System, coastal Canterbury Plains, New Zealand

  
  

• Len J. Brown, Lee F. Burbery, Helen Rutter, Michael K. Stewart and John H. Weeber

  The Christchurch Artesian System: a historical treatise

  
  

• Lee Burbery

  Christchurch groundwater exposed

  
  

• EDITORIAL