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Wamuran Irrigation Scheme D&C

About the project

The Wamuran Irrigation Scheme is being designed and constructed with the intention of delivering Class A recycled water to agricultural irrigation. Unitywater engaged the WIS JV (Pensar is a partner) to deliver the scheme infrastructure and ensure its maintenance into the future.

Location

Wamuran, Queensland

Client & Duration

Unitywater
Design Phase March 2020 - June 2021, Construction Phase January 2022 - November 2023

Project Scope

  • The $100 million project sees Pensar designing and building a network of pipelines, pump stations and reservoirs to deliver recycled water from the Caboolture wastewater treatment plant to the Wamuran Valley some 25km away.
  • The system will deliver more than 2.5 gigalitres of Class A water per year to the region’s growers – reusing a valuable resource and diverting discharge from local river systems.
  • Unitywater engaged the WIS JV (Pensar is a partner) to design and deliver the scheme infrastructure.

Challenges

  • Working with, and upgrading where needed, varying existing assets
  • Creating a scheme design solution, meeting the increasing needs of sewerage treatment and disposal as a result of the forecasted population growth for the Caboolture River Catchment
  • Taking into consideration the varying crop types, water quantity required and differing times of day/year irrigation takes place

Achievements

  • The WIS JV worked closely with Unitywater, AECOM and Hydroplan to deliver a design meeting the scheme requirements of delivering Class A recycled water to farm gates
  • Undertaking a customer focused design methodology, placing customer requirements at the forefront of the concept design
  • Incorporating the upgrade and repurpose of existing assets including pump stations and Moodlu quarry and the design of 40km of new pipeline, running to farm gates

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