Responsible Agency: Seqwater
Proposal Stage of Development: Preliminary Business Case Complete
Building Queensland Role: To be determined*
Planned Stage End Date: Not Applicable
Estimated Cost of Delivery: $70–$130 million**
Date of Publication: June 2017 (for period 4 December 2016 – 3 June 2017)


The projected bulk water demand from the Beaudesert township is expected to exceed capacity by 2022 and increase significantly thereafter due to significant growth in the area, particularly within the Bromelton State Development Area. There is also significant growth predicted in the adjacent Logan City Council area of South Logan (including Yarrabilba and Flagstone). Water supply to the Beaudesert township is currently provided by the Beaudesert Water Treatment Plant. The Plant is a stand-alone water supply that extracts raw water from the Logan River, which has highly variable water quality. It is not connected to the South East Queensland Water Grid. The Water Treatment Plant was refurbished in 2014 to increase its water treatment capacity to four megalitres per day.


The proposal investigated options to augment the bulk water supply for the region. Two strategic options were considered viable and investigated in more detail. These options included a new connection from the Southern Regional Water Pipeline to Beaudesert and a pipeline connection via a new Wyaralong Water Treatment Plant. Either would allow the existing Beaudesert Water Treatment Plant to be decommissioned.

Further investigation of corridor requirements has shown that the pipeline connection via a new Wyaralong Water Treatment Plant is the preferred strategic option. The Southern Regional Water Pipeline connection project would be delivered first to meet short-term needs in the Beaudesert area. The treatment plant project would then be delivered based on demand triggers.

The preferred option is expected to meet the future demand of the Beaudesert township and provide water supply security to growth areas in the Logan City Council area. It also has the strategic benefit of providing an additional source of water to the grid, increasing bulk water supply reliability in South East Queensland.


Commence Detailed Business Case

* Building Queensland’s role subject to further development of technical specifications.
**A range is provided by Responsible Agency as a number of technical specifications are still being considered.