McCosker Contracting have an ongoing contract with QAL to conduct Mud Farming and Dam Maintenance operations on Residue Disposal Area (RDA) dams #1 and #2.
The operation includes the supply of Amphibious Scrollers, designed and built by McCosker, and modified LGP Bulldozers, operation/training and maintenance of amphibious excavators, Dam wall raisers and repairs for all Maintenance and Operations Works at the RDA, Ash Dams and associated structures.
Key activities include:
– Ash Dam facility and residue
– Upstream wall raises
– Dam maintenance
– Operation and maintenance of dewatering pumps and piping systems
– Road and drain maintenance
– Miscellaneous drainage and civil works
– Sediment control structures
– Decant Structures
– HDPE Installation and welding
– Dam wall raisers and repairs.
Queensland Alumina Limited (QAL)
Alumina Refinery Plant
Ongoing since 2007