Updates for residents and businesses near the Christchurch Wastewater Treatment Plant site.
The activated sludge plant construction has started
HEB Construction has been confirmed as the contractor for the construction of the activated sludge plant, and construction is underway.Here’s what you need to know about noise, dust and traffic management:
- Noise and vibration will be monitored at the site boundary, with strict limits in place. If these limits are exceeded, mitigation measures will be put in place.
- Dust control will include visual monitoring, water carts, speed limits, and other suppression techniques to keep dust to a minimum.
- Traffic management is being planned with HEB’s ground improvement subcontractor to reduce impacts on the community. During ground improvement work, there may be up to 30 trucks per day coming to the site. We haven't yet confirmed the route trucks will take to the site, but we will share this once we know.
Work hours will be Monday to Saturday, 7.30am to 6pm. If any work needs to happen outside these hours, we'll notify the community in advance.
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 using 3D design technology. Once construction begins, our goal is to move quickly, with commissioning of the plant currently targeted for 2028.
How to stay informed
Sign up for our regular newsletter to stay up to date on the latest at the plant.
Sign up to the Christchurch Wastewater Treatment Plant newsletter
