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WASTEWATER LEAK - PROSSER STREET, TITAHI BAY
Wellington Water crews responding to a wastewater leak on Prosser Street, Titahi Bay

Our team have responded to a wastewater leak at the corner of Prosser Street and Titahi Bay Road. 

Excavation is currently underway. The pump station is operating but will need to be shutdown before repair. Plans to divert the wastewater flow away from the pipe is being developed as the pipe will also need to be shutdown before repair.

There has been an earlier discharge into the stormwater network. This has now stopped with sucker trucks managing the flow, preventing wastewater entering the stormwater network. Signage has been placed at the outlets into the harbour and water quality sampling will be underway.

Traffic management has been set up on Titahi Bay Road. One southbound lane has been closed.
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Your Water / The Network / Wastewater / Wastewater Treatment Plants / Lake Ferry Wastewater Treatment

Lake Ferry Wastewater Treatment

At Lake Ferry the wastewater treatment system consists of on-lot septic tanks with effluent filters and a community wastewater treatment plant. At the treatment plant, septic tank effluent flows through a packed bed reactor, a recirculation tank and ultraviolet treatment. Discharge of the treated effluent is managed to either an adjacent block of land by irrigation or to a constructed wetland, depending on the conditions of the Resource Consents.

The plant was granted new consents on 17 June 2005. A change of conditions was granted on 10 January 2011.  These consents will expire on 30 September 2025.

In general, the consents allow SWDC:

  • to discharge treated wastewater to land via an irrigation system at up to a maximum daily flow rate of 200 cubic meters per day and a maximum weekly flow rate of 700 cubic meters per week.
  • to discharge treated wastewater to land at a maximum application rate of 3.0mm/day or up to the field capacity.
  • to discharge treated wastewater to water (wetland) when the field capacity of the irrigation field has been exceeded or when a discharge is required for emergency or maintenance purposes.
  • to discharge contaminants and odours from the collection, treatment and discharge facilities within the site boundary.

Resource Consents

WAR040096 Lake Ferry WWTP Consent Conditions Variation 2011

Plant Performance

 

 

 

 

Current Status: Compliant, but faces certain risks

Period: February 2026

Commentary:

The new resource consent application was submitted in August.

However, ongoing work associated with the consent process will be managed by South Wairarapa District Council. The operations team are currently undertaking a minor upgrade to the chemical mixing to minimise manual handling. 

 

Items of significance:​

With effect 01 July 2025, SWDC took back ownership of the Capital Delivery Programme and associated projects .

Source of current high inflow and infiltration is still not funded for WWL to undertake investigations. Peak loads during wet weather events are impacting on the plant's hydraulic capacity, which is likely to adversely affect the plant's performance and compliance .

Read all the Lake Ferry wastewater treatment plant performance monthly reports​