Summary
The redevelopment of a former service station required the removal of underground fuel storage tanks that had been decommissioned a number of years previously.
The extent of the contamination and tank infrastructure was far more extensive than originally expected. TRM worked closely with the client and brought the original and additional works to completion on time and within budget.
Works
- Breaking out of concrete slabs and crushing for retention on site.
- Removing tanks and associated fuel lines, pumps and interceptor.
- Selective excavation of clean and contaminated material for re-use or treatment / disposal as appropriate.
- Contaminant abstraction and treatment of hydrocarbon impacted groundwater.
- Completion and validation of the works to regulatory and client requirements.
Synopsis
The groundwater beneath the site was found to be contaminated by petroleum hydrocarbons which were attributed to the presence of residual fuel and oil in the underground tanks. TRM provided all of the necessary resources i.e. civil engineering works, tank content treatment and removal, groundwater treatment and treatment/disposal of the contaminated soil and wastes all in a cost effective and timely manner.
Volumes of materials expertly handled:
- Waste oil 5,800 litres
- Oily sludge 1,200 litres
- Contaminated soil 1,000 tonnes
- Removal of 8 redundant tanks
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Case study