Whakaraupō/Lyttelton Harbour Wastewater

The Lyttelton Harbour wastewater scheme is now working, and all of the wastewater from Governors Bay, Lyttelton and Diamond Harbour is being pumped directly to the Christchurch wastewater treatment plant at Bromley.

Previously wastewater from Lyttelton, Governors Bay and Diamond Harbour was treated at wastewater treatment plants in each township before being discharged into the harbour.

The Governors Bay Treatment Plant used to serve the community of around 750 residents living along Main Road to approximately 350 metres short of Church Lane. The treatment plant was located approximately 400 metres south of the Governors Bay wharf, above the foreshore.

The Diamond Harbour wastewater treatment plant treated wastewater from Diamond Harbour, Church Bay and Charteris Bay. It was accessed off Otamuhua Lane and is located below Koromiko Crescent.

As part of the Lyttelton Harbour wastewater scheme, all of the wastewater from Governors Bay, Lyttelton and Diamond Harbour is being pumped directly to the Christchurch wastewater treatment plant at Bromley.

Consent monitoring and reporting

These treatment plants had resource consent requirements for monitoring treated wastewater and the area receiving the discharge (receiving environment). Samples are taken and analysed on a regular basis.

The volume of wastewater leaving the plant is recorded continuously. Together these provide an indication of how the plant is performing and whether there are any potential adverse effects of the discharge on human health or the environment.

Monitoring data is provided below.