This former mixed industrial site necessitated the use of treatment trials as part of the Options Appraisal stage, to determine the best technique to resolve a problematic contamination issues.

The significant NAPL and dissolved phase groundwater contamination was situated in an area located adjacent to a school, and it was essential that the remediation was completed without disruption or harm to the users.

In-situ methods of groundwater treatment were tested including the use of steam injection designed to enable viscous contamination to be removed. In-situ trials led to a modification of the approach which comprised additional investigation to target discrete but significant deposits of contamination.
By using this approach some 50,000 litres of product were removed successfully with full regulatory compliance and with no disruption to the users of the adjoining school.

Interested in how we did it? Download the case study here.