Water & Wastewater

Our team’s expertise extends across all facets of water and wastewater, from treatment to pipelines, pumping and irrigation systems, dams and water storage. Our collaborative approach to design and delivery allows us to draw on specialist from across our business to provide a complete project delivery solution for water, wastewater or environmental infrastructure projects for the public and private sectors.

Coffs Harbour Water Treatment Plant, NSW


We are a leader in all facets of water and wastewater treatment plant, design, construction, operation and maintenance. We have delivered large scale urban and regional projects, designing and delivering comprehensive integrated infrastructure solutions.

Every aspect of our delivery is focused on achieving first class outcomes, from robust planning, to integrated design, cost effective procurement, fast-track construction and seamless transition to operation.

Our whole-of-life approach aims to maximise efficiency, optimise performance and sustain reliability through rigorous preventative maintenance programs.

Our expertise includes:

  • Pre-treatment specialists (screens, dissolved air flotation (DAF), clarifiers, filtration)
  • Membrane filtration (microfiltration (MF), ultrafiltration (UF) and pressure membranes of for nano-filtration (NF))
  • Desalination (reverse osmosis)
  • Demineralisation (ion exchange)
  • Ultra-pure water (condensate polishing, tripol)
  • Zero liquid discharge (brine concentration, crystallisation)
  • Biological nutrient removal
  • Sludge treatment (aerobic, anaerobic)
  • Chemical treatment & PH control



We plan, design and deliver pipelines, and irrigation and reticulation channels, and have automated delivery systems and refurbishment solutions for aging water distribution and irrigation channels to improve water access and efficiency. 

Pipes and smart irrigation requires flow control and metering technology that involves customised approaches based on flow rates and the characteristics of pressurised systems. We have developed specialist in-house capabilities in control, instrumentation and SCADA engineering. We also custom engineer high-efficiency pumping systems to meet the demand of the reticulation scheme.


We have delivered a number of dam upgrades across Australia to improve safety and storage capacity of reservoirs.  Our capabilities include strengthening of the existing embankments, major structural upgrades of the existing spillway, installation of gates on spillway crests. On a number of projects such as Wyangala Dam, NSW, Eildon Dam, Vic, Split Rock Dam, NSW have included construction works and adjacent to operating dams and reservoirs, and we fully appreciate the importance of maintaining the integrity, safety and operation of these facilities throughout delivery.