Defence Site Maribyrnong, served as a major explosives and munitions manufacturing facility and research centre for various agencies within the Department of Defence from 1908 until its closure in 2000.
The risk of latent explosive residues in building fabrics and aged site infrastructure such as wastewater pipelines and culverts is an identified hazard for organisations working in and around the Maribyrnong site. To support the quantification and mitigation of this risk, Defence commissioned OPEC to work with CH2M Hill to prepare a detailed explosives survey of the site. The works involved supporting CH2M Hill’s explosives assessment teams and moving in advance of these teams to prepare work areas, check for potential asbestos, lead and biological contamination and identify any safety hazards or structural integrity issues within buildings.
Explosive residues, when encountered, were identified and neutralised. Additional functions included the provision of height access equipment, shoring works, the removal of heavy machinery to provide access to sub-floor areas and waste removal and segregation tasks. OPEC undertook the logging and analysis of individual test results and supported the development of recommendations and strategies to support the remediation of impacted sites.