Gasworks and Oil Storage Facility, Wandsworth

 

The site was to be redeveloped for luxury riverside apartments with associated retail and leisure facilities.

The underlying groundwater was grossly impacted with over 1000mm of heavy free phase hydrocarbons.

In order to meet the development program the remedial system was integrated into the permanent works and continually operated throughout the construction period and for a further two years beyond the building completion.

The remedial system was monitored and operated remotely using a telemetry system linked by a GSM internet connection to MEL’s offices so as to minimise any disturbance to the residents.

Client
Residential development company

Site
Former gasworks and oil storage facility, Wandsworth, London

Problem
Free phase hydrocarbon contamination particularly creosotes

Technologies utilised
Free phase recovery using down well skimming pumps, phase separation, GAC filtration, telemetry operation and monitoring

Remediation criteria
Reduction of free phase hydrocarbons across the site to less than 10mm measurable thickness

Validation
Project validated by an independent consultant with sign off by the Environment Agency