Cardno / Kapiti Coast District Council
Maximising the use of existing assets, in particular the filters, greatly reduced the capital spend to achieve the desired results. Our Compass coagulant control system provided resilience when treating extreme raw water quality events.
Process Design, Commissioning
Waikanae WTP is a 28 ML/d plant near Wellington New Zealand experiencing considerable demand growth from population expansion. It treats river water that rapidly deteriorates in quality when the river is in spate. The existing chemical dosing systems struggled in these extreme events.
Lutra provided the process design for the Waikanae WTP Stage 1 upgrade. The upgrade featured all new chemical dosing systems, electrical, and control systems. Following the filter audits, conducted by Lutra, the filters were given a minor refurbishment. Lutra also provided commissioning assistance.