70'000m2

HDPE LINER INSTALLED

6500m3

CAPPING LAYER

3210m3

CONTAINMENT CELL

Client Department of Natural Resources, Mines & Energy
Location Hopeland | QLD
Value $4.0m
Timeline Jun 2019 - Dec 2019

Department of Natural Resources, Mines and Energy (DNRME) engaged Synergy to undertake the remediation of waste sludge storage dams at the former Linc Energy site in Hopeland, QLD.

The site was formerly managed by Linc Energy who used the area to perform underground coal gasification trials which ultimately failed. In June 2016, Linc Energy disclaimed the site and DNRME took over the management. Since then, DNRME have been investigating, isolating, decommissioning, decontaminating and dismantling facilities at the site.

As part of the remediation works, Synergy was contracted to consolidate and stabilise hydrocarbon contaminated sludge and soil generated from the underground coal gasification (UCG) process and gas to liquid (GTL) plant. Synergy used locally sourced flyash and cement to achieve solidification of the contaminated waste which was then relocated to a purpose built triple lined containment cell.

Synergy modified the containment cell design from the original specification to improve its constructability, durability and suitability.