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Using data to estimate locations of on-site wastewater systems in Canterbury

Water pollution
Data Set Esr
Data Set Esr

Regional councils in the New Zealand have little information on where the majority of the non-consented on-site wastewater systems (i.e., septic tanks) are located and if they pose a risk to drinking water supplies.

To bridge this information gap, we utilised geospatial datasets from Environment Canterbury to help identify the unknown on-site wastewater systems locations for 10 districts in Canterbury.

The findings of the project enable a comprehensive understanding of the spatial distribution of on-site wastewater systems, supports informed decision-making and sustainable wastewater management practices in Canterbury.