
Auckland
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- 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
- Nitrate: 0 - 0.005 g/m3
- Dissolved organic carbon: 0 - 0.7 g/m3
- Sulfate: 0 - 2.5 g/m3
- Land uses: Urban
Taupo
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- Number of wells: 9
- 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
- Nitrate: 0 - 5.7 g/m3
- Dissolved organic carbon: 0 - 1.6 g/m3
- Sulfate: 0 - 46 g/m3
- Land uses: Urban and agricultural
Wellington
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- Number of wells: 21
- 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
- Nitrate: 0 - 9.4 g/m3
- Dissolved organic carbon: 0 - 5.5 g/m3
- Sulfate: 0 - 34 g/m3
- Land uses: Dairy, agriculture, urban, industrial
Canterbury
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- Number of wells: 26
- Aquifer lithology: Sand, gravel, peat
- Depth of wells: 1.2 - 69.8 m
- Nitrate: 0 - 22 g/m3
- Oxygen levels: 1 - 100 %
- pH: 5.46 - 7.57
- Temperature: 7.3 - 16.1 °C
- Nitrate: 0 - 22 g/m3
- Dissolved organic carbon: 0 - 26 g/m3
- Sulfate: 2.1 - 49 g/m3
- Land uses: Urban, agricultural, reserve