Environmental monitoring
Wastewater routine and event-based monitoring
As part of the operational consents for our Wastewater Treatment Plants we undertake routine water quality sampling to ensure treated wastewater is safe for the public and the environment. As part of this, we monitor faecal indicator bacteria, including E. coli in freshwater environments and Enterococci in coastal and marine waters.
Additional water quality parameters are also monitored to provide a broader understanding of overall water condition and to identify any emerging risks or trends.
Routine monitoring results, along with sampling taken following wastewater discharges are displayed on the interactive map for public access. All data shown can also be downloaded in CSV format for further analysis and transparency.
Stormwater network routine monitoring
The stormwater network and associated receiving environments are monitored on a scheduled monthly basis to assess any potential influence from the wastewater network arising from acute or chronic faults. This monitoring programme was established under the global stormwater consent issued by Greater Wellington Regional Council.
This consent is independent of the Greater Wellington Regional Council recreational water quality monitoring. For information or guidance on safe swimming and recreational water quality, please refer to Land, Air, Water Aotearoa (LAWA). Monitoring data that informs the recreational beach programme is available via the GWRC Environmental Data Dashboard.