Updates for residents and businesses near the Christchurch Wastewater Treatment Plant site.
Activated sludge reactor design finalised for tender
The initial design for the new Activated Sludge Reactor is now complete and has been issued to contractors as part of the tender process.
Contracts for construction monitoring (CA) and construction administration (CA) have also been awarded, ensuring independent oversight throughout the build.
Tendering for the main construction contract is underway, with work expected to begin once a contractor is confirmed. Site establishment and construction are expected to start by the end of this year or early in the new year.
The new reactor will be a substantial structure (67m x 67m and 7m high), housing a blower room to mix air with incoming wastewater. The design process has been accelerated by working closely with contractors and making use of 3D design technology. Once construction begins, our goal is to move quickly, with commissioning of the plant currently targeted for 2028.
Community meetings
We hold meetings for residents and businesses near the plant, where we share information about our on-site progress and upcoming works. These meetings are a chance for us to check in, answer some of your questions, and provide some insight into what to expect over the next few months. The next meeting will take place once the contractor is confirmed.
Neighbouring residents and businesses receive a leaflet with information before the next meeting. If you're on our neighbour's email database, you will also receive an email.
How to stay informed
If you’re a neighbouring resident or business, please email wastewater@ccc.govt.nz with "Neighbour Subscribe" in the subject line. We will send you updates as we receive confirmation of upcoming concrete pour dates.
This webpage will be regularly updated as information is confirmed.