Envirotreat were commissioned by ADI Building & Refurbishment to to carry out a pre-tender assessment of all risks associated with the development of the Brownfield site Staines. The project consisted of the construction of a new Aldi store and Lock n Store facility. The assessment indicated the requirement for remediation of hydrocarbon impacted soils which were impacting the groundwater. Envirotreat prepared a Remediation Strategy / Method Statement for the onsite treatment of the source contaminated soils Following delineation of the source, Envirotreat undertook E-Clay Stabilisation of the contamination. In addition, Envirotreat provided a watching brief during the enabling works for further contamination.