SA Water - Christies Beach Wastewater Treatment Plant Upgrade Project


The Christies Beach Wastewater Treatment Plant receives and treats wastewater from the surrounding communities and industry.

Since the Plant was commissioned in the early 1970s, the population of the region has increased and is expected to continue to grow over the next 25 years. To meet this expected population growth, SA Water is implementing a $272 million upgrade to the Plant.

GPA Engineering are providing engineering, procurement, construction and commissioning services for all aspects of the instrumentation and controls infrastructure for the project. The implementation of the project is phased over three years with the plant to remain operational during all stages of the project implementation.

Santos Spoolable Composite pull through Project


GPA assisted Santos for a flowline design project at Santos' Psyche and Barrolka gas fields in South West Queensland.

Both gas fields contained aging steel pipelines requiring replacement. To significantly reduce costs the flowlines were replaced with spoolable composite  pipe material using a pull through technique though the exiting pipes.

To overcome contraction during pressurising an innovative clamping method between the end of the spoolable pipe to the existing steel pipe was designed.