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Wellington Auckland Taupo Canterbury

Wellington

  • Number of wells: 22
  • Aquifer lithology: Sand/gravel
  • Depth of wells: 5-114.6 m
  • Oxygen levels: 0.3-89 %
  • pH: 5.5-7.1
  • Temperature: 13.6-16.1 °C
  • Dissolved organic carbon: 0-5.5 g/m3
  • Sulfate: 0-34 g/m3
  • Land uses: Dairy, agriculture, urban, industrial

Auckland

  • Number of wells: 3
  • Aquifer lithology: Sand, basalt and shellbed
  • Depth of wells: 46.7-64 m
  • Oxygen levels: 0%
  • pH: 7.35-8
  • Temperature: 17.2-18.2 °C
  • Dissolved organic carbon: 0-0.7 g/m3
  • Sulfate: 0-2.5 g/m3
  • Land uses: Urban

Taupo

• Number of wells: 10
• Aquifer lithology: Sand, ignimbrite, pumice
• Depth of wells: 4.6-53.6 m
• Oxygen levels: 5.4-67.4 %
• pH: 6-7.5
• Temperature: 12-15.8 °C
• Dissolved organic carbon: 0-1.6 g/m3
• Sulfate: 0-46 g/m3
• Land uses: Urban and agricultural

Canterbury

• Number of wells: 26
• Aquifer lithology: Sand, gravel, peat
• Depth of wells: 1.2-69.8 m
• Oxygen levels: 1-100 %
• pH: 5.46-7.57
• Temperature: 7.3-16.1 °C
• Dissolved organic carbon: 0-26 g/m3
• Sulfate: 2.1-49 g/m3
• Land uses: Urban, agricultural, reserve