Assessment and management of hazardous ground gases: Contaminated Land Guidelines

The NSW EPA is reviewing its guidance to ensure that hazardous ground gases are effectively assessed and managed in NSW.

Ground gases are frequently encountered during the assessment and remediation processes that occur before redeveloping potentially contaminated sites. They may also be encountered on land next to such sites. As awareness of the issue has grown, so has the number of sites found to be impacted and requiring management. Failing to recognise and appropriately manage risks associated with ground gases, while assessing and remediating potentially contaminated land, or when developing land next to sites impacted by ground gases, may have significant consequences.


Draft guidelines for assessment and management of hazardous ground gases

The EPA has released the paper Contaminated Land Guidelines: Assessment and management of hazardous ground gases for public consultation.These guidelines:

  • describe the issues relating to ground gases as they have been encountered in Australia and overseas
  • set out recommended approaches and procedures for assessing and characterising sites that may be impacted by ground gases
  • focus on assessing the risks associated with ground gases
  • outline options for managing and mitigating risks associated with ground gases
  • describe the planning and regulatory process relating to ground gases in NSW.

The EPA invites feedback on the draft guidelines to ensure it:

  • adequately achieves its purpose
  • contains up-to-date, correct, and relevant information
  • is useful and user-friendly.

The final version of the Contaminated Land Guidelines: Assessment and management of hazardous ground gases: will replace the current Guidelines for the Assessment and Management of Sites Impacted by Hazardous Ground Gases (PDF 815KB).
The guidelines will become statutory guidelines under section 105 of the Contaminated Land Management Act 1997 following publication in the NSW Government Gazette. This means the EPA, site auditors, contaminated land consultants, and those responsible for contaminating land will be required to follow these guidelines.

Download the draft guidelines for assessing and managing hazardous ground gases (PDF 2.6MB)


Consultation process

The consultation is open for six weeks, from 27 August until midnight 8 October 2019.

To have your say, please submit feedback on the guidelines by completing the online submission form below.

If you have any questions on the consultation, please see the FAQs or contact the EPA by:

The NSW EPA is reviewing its guidance to ensure that hazardous ground gases are effectively assessed and managed in NSW.

Ground gases are frequently encountered during the assessment and remediation processes that occur before redeveloping potentially contaminated sites. They may also be encountered on land next to such sites. As awareness of the issue has grown, so has the number of sites found to be impacted and requiring management. Failing to recognise and appropriately manage risks associated with ground gases, while assessing and remediating potentially contaminated land, or when developing land next to sites impacted by ground gases, may have significant consequences.


Draft guidelines for assessment and management of hazardous ground gases

The EPA has released the paper Contaminated Land Guidelines: Assessment and management of hazardous ground gases for public consultation.These guidelines:

  • describe the issues relating to ground gases as they have been encountered in Australia and overseas
  • set out recommended approaches and procedures for assessing and characterising sites that may be impacted by ground gases
  • focus on assessing the risks associated with ground gases
  • outline options for managing and mitigating risks associated with ground gases
  • describe the planning and regulatory process relating to ground gases in NSW.

The EPA invites feedback on the draft guidelines to ensure it:

  • adequately achieves its purpose
  • contains up-to-date, correct, and relevant information
  • is useful and user-friendly.

The final version of the Contaminated Land Guidelines: Assessment and management of hazardous ground gases: will replace the current Guidelines for the Assessment and Management of Sites Impacted by Hazardous Ground Gases (PDF 815KB).
The guidelines will become statutory guidelines under section 105 of the Contaminated Land Management Act 1997 following publication in the NSW Government Gazette. This means the EPA, site auditors, contaminated land consultants, and those responsible for contaminating land will be required to follow these guidelines.

Download the draft guidelines for assessing and managing hazardous ground gases (PDF 2.6MB)


Consultation process

The consultation is open for six weeks, from 27 August until midnight 8 October 2019.

To have your say, please submit feedback on the guidelines by completing the online submission form below.

If you have any questions on the consultation, please see the FAQs or contact the EPA by:

Submission form

 

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