8 MLD Treated Water Pump Station.


The Warkworth Wells Water Treatment Plant is designed for future growth with initial production of 3 MLD with staged increases to 8 MLD average daily flow (ADF). MTL undertook the treated water pump station and network tie in design to accommodate the initial capacity while providing for the future capacity upgrades.

The treated water pump station and rising mains deliver treated water to two pressure zones:

  • the reticulation network & Thompson Rd reservoir.
  • the View Rd reservoir.

The design required an intensive pump and drive sizing & selection process, hydraulic modelling and transient analysis. The system includes surge protection via a single 4 m3 surge vessel, expandable to 8 m3 for future flows. MTL’s sub-consultant Arup completed the directionally drilled PE treated water rising main design.


The construction of the pumping station and treated water rising mains were completed in 2018. The plant can be easily upgraded in future with all buried and header pipework sized for future capacities.


Watercare, Cassidy Construction, Arup, Neo, Filtec, Beca.