Remediation of Redundant STPs

STPs 4
Remediation of Redundant STP’s at Maclean, Townsend & Ilarwill
Client Clarence Valley Council/ Public Works
Contract (52 weeks)
  • Remediation of 3 redundant Sewage Treatment Plants located at Maclean, Townsend and Ilarwill sites.
  • Engage environmental consultants to perform site investigations, testing and develop Remedial Action Plans for each site.


Value $ 2.4 M
Scope The project involves demolition and remediation for future land-use of 3 redundant STP’s located at Maclean, Townsend and Ilarwill.The scope of work include: 

  • Performing detailed site investigations, testing and developing RAP and REF for the three sites.
    • Removal of approx. 700 tonnes of Contaminated Material at Townsend site to Waste Disposal Facility.
    • Excavation/Removal of Biosolids from redundant STP ponds & Importing ENM to fill ponds at all three sites.
    • Demolition and disposal of redundant concrete structures
    • Engaging EPA accredited Site Auditor to validate the remediation process at each site per EPA guidelines


Project Status On-going



STPs 5 STPs 4 STPs 3 STPs 2 STPs 1