Porirua Central Wastewater Retention Tank

The Porirua Central Wastewater Tank infrastructure project was conducted to address the issue of wastewater overflowing into Porirua Stream and Te Awarua-o-Porirua Harbour.   

This project was crucial in ensuring a healthier harbour and coastal environment by reducing the amount of untreated wastewater that enters the network. The overflows occur when heavy rainfall causes an excess of water to flow through the pipes, surpassing their capacity. To combat this problem, they constructed a storage tank in central Porirua. This tank plays a vital role in preventing wastewater from overflowing into the stream and harbour, ultimately improving the overall water quality in the area.

With the retention tank being built between the main railway line, SH1, and the major arterial road network, keeping the roads clean was a must. There was also a requirement for treating the construction site water.  To solve this, Condor supplied a MobyDick 400B Wheel Wash System, and a Condor XXL Water Treatment System to ensure the site water met compliance before being discharged to the stormwater network.