Landfill Gas Risk Assessment
Site-wide landfill gas and migration risk assessment for active and closed landfill sites.
- Regulator-aligned recommendations
- Clear programs for mitigation
Independent LFG Specialists
Landfill Gas Expertise
On Demand
Bridging science and engineering through experience.
Nexus Landfill Gas provides specialist landfill gas and hazardous ground gas advice to support councils, consulting projects, and property developments near and on landfills and sites impacted by hazardous ground gas. We focus on practical, defensible solutions that keep projects compliant and on-program, avoid late surprises, and protect future asset value.
- Years LFG Experience
- 30+
- States & Territories
- 5
- Sites Assessed
- 100+
Currently Taking Projects
QLD · NSW · VIC · WA · SA
Core Service Areas
Specialist advice across landfill gas and hazardous ground gas
For consulting and development businesses, this means earlier clarity on gas risk, fewer planning surprises, and more predictable development and remediation costs.
Monitoring Plans, Compliance and Reporting
Monitoring plans and reporting that turn data into decisions and compliance confidence.
- Network design and optimisation
- Management and regulator-ready reporting
Gasfield Design, Optimisation and Troubleshooting
Independent review and optimisation of gas collection and control systems to improve capture efficiency, yield or migration control.
- Reduce odour and migration risk
- Operational troubleshooting support
Development Interface and Hazardous Ground Gas
Early screening, risk assessment, and pragmatic mitigation concepts to secure approvals.
- Planning-compliant assessment
- Buildable mitigation strategies
Capabilities
Comprehensive support, from early screening to delivery
Practical, defensible deliverables designed to reduce uncertainty and keep projects moving.
Technical consultancy (SQP)
- Defensible risk assessments and conceptual site models
- Structured sampling and analysis plans for gas-impacted sites
- Clear action levels and trigger frameworks
Monitoring and reporting
- Monitoring networks aligned to guidance and licence expectations
- QA-backed analysis and trend reporting
- Management and regulator-ready reporting
Design and CQA support
- Buildable concepts: membranes, venting, pathway breaks
- Tender-ready specifications and documentation
Compliance and regulator support
- Clear responses to regulator and auditor findings
- LGMP and monitoring protocols
- Licence variations and compliance reporting
Landfill services
- Phytocap lysimeter design and installation with remote sensing and logging
- Subsurface hotspot investigation and targeted remediation advice
- Leachate level management to improve gas yield and stability
- Third-party landfill gas collection system audits
- Subsurface migration assessment and remediation planning
Detailed Capabilities
Structured support that scales with your project
Landfill Gas Risk Assessment and Technical Consultancy
- Principal-level SQP support for contaminated land investigation documents
- Buffer zone, encroachment, and land optimisation inputs
- Structured sampling and analysis plans for gas-impacted sites
- Action levels, triggers, and response frameworks that reduce uncertainty
- Hazardous Ground Gas Risk Assessments aligned to regulator guidance
- Conceptual site model development and refinement for decision-making
Concept Design and Construction Support
- Buildable concepts: passive/active venting, membranes, pathway breaks
- Pathway interception barriers and engineered ventilation solutions
- Membrane suitability assessment, including targeted testing where needed
- Tender-ready specifications and documentation inputs
- Construction support, inspection, and verification testing
- Long-term monitoring planning and performance validation
Landfill Gas Collection Efficiency
- Capture efficiency estimation with practical optimisation analysis
- Wellfield design and extraction system performance assessment
- Flare and energy recovery feasibility studies and delivery support
- Ongoing monitoring reviews and baseline recalculation support
- Operational troubleshooting, optimisation, and training
Regulator Compliance and Support
- Clear technical responses to regulators and auditor findings
- Landfill gas management plans and monitoring protocols
- Documentation aligned with international best practice and Australian regulatory
- Support for licence variations and compliance reporting
- Expert witness support and regulatory liaison when required
Our Approach
Direct access to principal-level expertise for risk assessment, monitoring, mitigation, and troubleshooting. We focus on practical, buildable solutions that support approvals and protect long-term asset value.
- Principal-only delivery with clear, defensible recommendations
- Compliance aligned with commercial outcomes and project timelines
- Independent perspective on monitoring, reports, and gas systems
Ready to assess your site?
Whether you are a property developer requiring a ground gas risk assessment, a council managing a legacy landfill, or a waste operator seeking to better understand and control off-site gas migration, we welcome the opportunity to discuss your project.
Start a ConversationWhy Nexus
Why Engage Nexus Landfill Gas
Practical, defensible outcomes for developers, landfill operators, and regulators, with direct specialist support from scoping through delivery.
Principal-only delivery
Your work is delivered by an experienced landfill gas specialist, not delegated.
Better investment decisions
Early, realistic view of risk and mitigation cost so development stacks up before commitment.
Compliance without over-engineering
Solutions that satisfy regulators without unnecessary cost or program impact.
Flexible resourcing
On-call support during peak periods, projects, or regulator pressure without recruiting.
Independent perspective
A fresh set of eyes on monitoring, reporting, and gas systems to reduce blind spots.
Contact Us
Send a message and we will respond within one business day. For urgent requests, email us directly.