Former industrial sites, fuel stations, and depot land often contain hydrocarbon contamination from spilled fuels, oils, and solvents. Disturbing contaminated soil releases volatile organic compounds that pose inhalation, skin absorption, and fire risks. Controlled excavation, handling, and disposal of hydrocarbon-contaminated material require specific safety measures. This talk covers the controls needed during hydrocarbon clean-up works.
Key Hazards
Inhalation of volatile organic compound vapours from contaminated soil
Skin absorption of hydrocarbons through direct contact with contaminated material
Fire or explosion from ignition of volatile vapours in excavation areas
Groundwater pollution from uncontrolled migration of contaminated runoff
Control Measures
Review the remediation strategy and contamination assessment before starting excavation.
Monitor the atmosphere continuously for volatile organic compounds using a PID detector.
Wear chemical-resistant gloves, coveralls, and RPE selected based on the COSHH assessment.
Establish an exclusion zone downwind of the excavation to protect workers from vapour drift.
Eliminate all ignition sources within the exclusion zone including engines, smoking, and hot works.
Load contaminated soil directly into sealed or covered vehicles for immediate removal to a licensed facility.
Install silt fencing and drainage controls to prevent contaminated runoff entering watercourses.
Provide decontamination facilities including boot wash and hand wash at the exclusion zone boundary.
Brief all operatives on the specific contaminants present and their health effects before starting work.
Remember
Monitor the atmosphere continuously for volatile organic compounds during all excavation work
Wear the correct chemical-resistant PPE as identified in the COSHH assessment
Eliminate all ignition sources within the exclusion zone around contaminated excavations
Load contaminated material into sealed or covered vehicles for immediate removal from site
Use the decontamination facilities before eating, drinking, or leaving the work area