Karapiro Water Treatment Plant Capacity Upgrade

Waipa District Council

Project Scope:

 The overall scope of this contract is to install, construct, test and commission a new prefabricated water treatment stream and all associated works to augment the existing Karapiro Water Treatment Plant (WTP).

Major works included:

  • Supply and install Raw Water Pump Pontoon with Raw Water Pumps
  • Raw water pipework, including dosing points
  • Design and construct a Waste Treatment Plant Building
  • General pipework connections, including:

    - Filtered water pipework and connection to existing storage on site

    - Sludge pipework and Design-Build pump station/rising main

    - Overflow/Filter to Waste pipework

    - General drainage

  • Chemical Storage Tank Replacement
  • Chemical Dosing/Pipework
  • Powdered Activated Carbon (PAC) facility, including repurposing of existing PAC dosing equipment within a new design-build facility shed
  • Instrumentation, electrical and control systems, including electrical cabling, motor starters and MCC boards
  • Software Control Programming, Software FAT testing and SAT testing
  • Backwash pump and pipework
  • Site Earthworks and Hardstand Pavement
  • Site Landscaping
  • Sludge Management System upgrade


More photos coming soon.


This project is due for completion August 2018.