Former Brompton Gasworks

In December 2022, the EPA entered into an Environment Performance Agreement (the Agreement) with Renewal SA and MAB for the gasworks site. The Agreement requires MAB to engage an EPA-accredited site contamination auditor (the auditor) to complete a site contamination audit. The auditor is overseeing and reviewing the assessment and remediation undertaken at the site to confirm that the remediation undertaken has made the land suitable for the proposed use.

The Agreement allows the EPA to maintain regulatory involvement in the assessment and remediation of site contamination at the site. It also requires MAB to submit a number of deliverables to the EPA, including the following documents:

• Revised site specific risk assessment
• Remediation options assessment
• Site remediation plan
• Community engagement plan
• Interim audit advice
• Quarterly progress reports
• Remediation validation report
• Site contamination audit report.

The deliverable reports recorded in the EPA Public Register are available in the Reports library. Any additional reports will be added when they become available in the Public Register. Please contact the EPA Public Register administrator for a copy of the Agreement.

The deliverables under the Agreement are intended to achieve the following:

• Confirm the nature and extent of site contamination
• Identify and assess any potential risks to human health and the environment
• Develop and execute a site remediation plan
• Validate the suitability of the site for the proposed land use
• Address any residual site contamination through the development of a site management plan as necessary
• Provide sufficient information to enable the auditor to prepare a site contamination audit report.

In August 2023, the auditor prepared interim audit advice which endorsed the remediation proposed in a site remediation plan. Following the EPA’s acceptance of the interim audit advice, remediation commenced at the site. Site remediation was undertaken by MAB’s remediation contractor, Enviropacific.

The on-site remediation works were completed in April 2025, but MAB and its contractors must finalise the associated remediation validation report. This will be reviewed by the independent auditor and incorporated into the final site contamination audit report.

Following the completion of remediation in line with the site remediation plan, a remediation validation report is to be prepared which details the results of the site validation works. The remediation validation report is due to be completed in June 2026.

The final requirement of the Agreement is the completion of a site contamination audit report prepared by the site contamination auditor, that clearly provides the auditor’s opinion on the site’s suitability for the proposed use. The site contamination audit report is due to be completed late 2026, pending completion of the other deliverables under the Agreement.

MAB commenced civil works at the site in February 2026. The civil works are expected to be completed over the next 12 months. In their December 2025 Community Update, MAB indicated that the works will include:

• Early earthworks, which will prepare the site for construction
• Establishing stormwater, sewer and water connections
• Delivery of road and pavement upgrades
• Electrical works.

Environmental issues (including dust and odour) will be managed through the implementation of a Construction Environmental Management Plan (CEMP). The CEMP was prepared by an environmental consultant and has been reviewed by the auditor. The environmental consultant will be on-site during civil works.

MAB

MAB is responsible for ensuring the milestones set out in the Agreement are satisfied. MAB is also responsible for site management. MAB is managing the civil works at the site. MAB will also manage construction of the development, which is expected to commence towards the end of 2026 following completion of the site contamination audit.

Further information about the gasworks remediation is available on the MAB website.

Site contamination auditor

Auditors are expert individuals accredited by the EPA who are subject to specific legislative obligations and guideline requirements. Auditors independently review the assessment and remediation carried out by others and provide their written opinions and determinations, including the preparation of interim audit advice and a site contamination audit report.

Information about the audit system is available on the EPA website, and includes information regarding:

• Site contamination auditors
• An overview of the audit system
• Site contamination audit reports and audit statements.
  
  

City of Charles Sturt

Local environmental nuisance issues are regulated by local councils under the Local Nuisance and Litter Control Act 2016. The City of Charles Sturt is responsible for regulating environmental nuisance issues, including dust and odour, related to the current civil works and future construction works at the site. Further information can be found on the City of Charles Sturt website.

EPA

The EPA administers the Environment Protection Act 1993 and Environment Protection Regulations 2023. The Agreement is a regulatory tool under the Environment Protection Act 1993 which gives a framework for the remediation activities that were undertaken at the gasworks site.

The EPA is also responsible for the administration of the audit system.

More information about the role and function of the EPA can be found on our Environmental Info webpage.

If you would like information about site management and monitoring, or would like to discuss specific concerns about dust, noise or odour, please contact MAB on (08) 7095 8222 or via their online form.

To report an environmental nuisance issue related to the civil works, please contact City of Charles Sturt Community Safety on (08) 8408 1111 or council@charlessturt.sa.gov.au.