Asbestos is often associated with buildings, plant rooms, insulation and asbestos-containing materials (ACMs) found during refurbishment or demolition projects. However, one of the most overlooked risks in the construction industry is asbestos contamination within soils and made ground.
Across the UK, thousands of brownfield sites, former industrial premises, demolished buildings, military facilities and redevelopment projects contain buried asbestos. Without the right training, workers can unknowingly disturb asbestos-containing materials hidden beneath the surface, creating significant health, legal and financial consequences.
Why Is Asbestos Found in Soil?
Historically, asbestos waste was frequently buried on-site during demolition, refurbishment and redevelopment projects. Common sources include:
- Demolition rubble and buried construction waste
- Asbestos cement sheets and fragments
- Floor tiles and tile adhesives
- Insulation board fragments
- Pipe lagging materials
- Fire blankets and other asbestos products
- Historic fly-tipping and illegal waste disposal
Many sites that appear clean on the surface can contain asbestos fragments beneath the ground. Even detailed site investigations cannot always identify every buried asbestos-containing material before excavation begins.
The Risk of Unexpected Discovery
One of the key lessons from asbestos in soils training is understanding that asbestos is not always identified before work starts.
Groundworkers, utility contractors, civil engineering teams and landscapers regularly encounter unexpected materials during excavation. If suspicious debris is uncovered, work should stop immediately and the material should be treated as asbestos unless proven otherwise. This follows the principle that materials should be presumed to contain asbestos until evidence demonstrates they do not.
Without training, workers may:
- Continue excavating contaminated areas
- Break or crush asbestos-containing materials
- Spread contamination across the site
- Expose themselves and others to airborne fibres
- Incorrectly dispose of contaminated waste
Understanding Different Risk Levels
A common misconception is that some asbestos products are automatically “safe”.
Training helps delegates understand that risk is determined not only by the type of asbestos product but also by its condition and how it is handled. For example:
- Asbestos cement is generally considered lower risk because fibres are bound within a cement matrix.
- However, cutting, grinding or aggressively breaking asbestos cement can generate significant fibre release.
- Materials such as insulation board, lagging and coatings can present much higher risks when disturbed.
Understanding these differences is critical when assessing contaminated land and deciding how work should proceed.
Protecting Groundworkers and Site Personnel
Workers involved in excavation and ground disturbance activities are often the first people to encounter buried asbestos.
Training helps personnel:
- Recognise suspicious materials
- Understand site investigation findings
- Follow emergency procedures
- Use appropriate control measures
- Prevent fibre release and contamination spread
- Work safely alongside asbestos surveyors and analysts
This knowledge can significantly reduce the likelihood of accidental exposure.
The Importance of Emergency Procedures
Even with robust planning, unexpected asbestos discoveries can occur.
Asbestos in soils training covers emergency response procedures, including:
- Stopping work immediately
- Restricting access to the area
- Preventing further disturbance
- Dampening materials where appropriate
- Managing potentially contaminated clothing
- Seeking competent advice and assessment
Having clear emergency procedures in place can prevent a minor incident from becoming a major contamination event.
Understanding Legal Responsibilities
Employers and site managers have legal duties to assess and manage asbestos risks.
Training helps delegates understand:
- The Control of Asbestos Regulations 2012
- Risk assessment requirements
- Licensed, non-licensed and notifiable non-licensed work categories
- Waste management obligations
- The role of competent surveyors and analysts
- Requirements for training and competence
Understanding these duties helps organisations demonstrate compliance and make informed decisions when asbestos is encountered.
Managing Asbestos Waste Correctly
When asbestos is discovered in soils, disposal costs can become a major project issue.
Training explains:
- Hazardous waste classification
- Segregation of contaminated materials
- Soil screening and remediation approaches
- Disposal requirements
- Documentation and waste tracking obligations
Effective management can help reduce costs while ensuring legal compliance and environmental protection.
Why Competence Matters
Perhaps the most important message from asbestos in soils training is that awareness alone is not enough.
Personnel working on sites where asbestos contamination may be present need suitable training and competence appropriate to the risk. Groundworkers, supervisors, project managers, consultants and environmental professionals all have a role to play in identifying risks and ensuring safe working practices.
Training provides the knowledge needed to make informed decisions, protect workers, prevent contamination and maintain compliance throughout a project lifecycle.
Conclusion
As redevelopment of brownfield land continues across the UK, asbestos contamination remains a significant challenge for the construction and environmental sectors.
Proper asbestos in soils and contaminated land training helps organisations:
- Protect workers and the public
- Reduce the risk of accidental exposure
- Meet legal responsibilities
- Avoid costly project delays
- Manage contaminated materials safely
- Improve confidence when working on potentially contaminated sites
Investing in training is not simply a compliance exercise—it is a practical step towards safer, more efficient and better-managed construction and remediation projects.
NATAS Asbestos in Soils & Contaminated Land Training provides delegates with a practical understanding of asbestos contamination risks, legal requirements, site investigation principles, emergency procedures and best-practice management techniques for working safely on potentially contaminated land.
