Decommissioning and Site Remediation

It really comes down to the experience of our team, professional work ethic and strong safety culture that enables OPEC to deliver a successful project.’ Kieron Zajac, Energy Group Manager (Newcastle)

OPEC Systems’ Energy Division is an experienced provider of decommissioning of fuel systems in accordance with AS4976 in a wide range of market sectors. Our experienced team of Project Managers, Quality, Safety & Environment (QSE) Managers, Environmental Scientists, and Fuel Technicians has successfully delivered numerous decommissioning projects for clients Australia-wide.

Disused, damaged and abandoned fuel systems are a potential environmental liability for site owners, facilities managers and tenants.

As such, OPEC provides the following services

  • Onsite bulk tank demolition
  • Aboveground and underground tank removal, disposal and certification
  • Gas freeing
  • Disposal of residue fuels, oil and water waste
  • Pipeline chasing and capping
  • Explosive atmosphere testing
  • Environmental validation
  • In-situ abandonment
  • Reporting to environmental management register
  • DA submissions and
  • EPA reporting

Our experience ensures we provide a comprehensive and flexible decommissioning service with minimum disruption to sites and facilities. All decommissioned tanks are disposed of in accordance with all legislative requirements and a certificate of disposal is issued with every project.

Site Remediation

OPEC’s team of qualified environmental scientists can test and manage any contaminated soils or groundwater which may be encountered in conjunction with the works. We assist our clients with preparing a site in accordance with the environmental guidelines to effect a sale or achieve approvals to enable the site to be used for a higher and better use.

To achieve this, OPEC offers the following services

  • A comprehensive program of environmental monitoring
  • Bio-remediation
  • Stockpile management and assessment
  • Land farming
  • Hazardous materials transport and disposal
  • Remediation action plans and
  • Environmental reporting

Our management systems are certified to the following international standards

OPEC’s application of accredited QSE systems enables a robust testing, commissioning, handover, training and operating agent takeover process to round out our construction and installation service.


We work closely with you to understand the unique requirements of your business, and can create a customised, integrated industrial solution to suit your needs. We focus on providing our customers with safe and efficient outcomes, with minimal impact on the environment.

If you would like to contact us at [email protected] one of our experts would be delighted to assist you in your bulk fuel infrastructure or site remediation needs.

Fuel System Assessment

Fuel System Design

Fuel System Construction and Installation

Fuel System Repair and Maintenance

Fuel System Testing