The inventory records data about New Zealand's publicly owned wastewater treatment plants. It replaces the Wastewater Information Database (WINFO).
The National Performance Review is used to update New Zealand’s wastewater treatment plant inventory.
It is the largest publicly available collection of information on New Zealand's estimated 329 publicly owned wastewater treatment plants.
This map was produced with the assistance of Eagle Technology using the Esri platform. More information on Esri 2021-2022 is available here.
More information on WWTPs in New Zealand is available by downloading the Excel file below.
2021-2022 Combined WWTP Data.xlsx - Updated 22/03/2023