Envirotreat were employed to remediate contaminated soils at a site in Beverley, East Yorkshire. The Bartoline Factory occupied a 3.5acre site until May 2003 when a major fire destroyed the building, resulting in ground contamination and the pollution of two nearby watercourses.
The factory was formerly used for the manufacture, storage and distribution of chemicals including solvents and adhesives. Historical use had also resulted in widespread soil contamination across the site, whereas perched groundwater contamination was probably caused by the methods employed to fight the fire. Total Petroleum Hydrocarbons (TPH) was identified as the main contaminant of concern within the made ground and perched groundwater.
In October 2005, the factory was rebuilt on the site and production was continued.
The remediation strategy for the Beverley site was designed to address the source contamination on-site and indirectly the pathway contamination issues, with the intention of protecting Human Health and the identified groundwater receptors (i.e. The Barmstrum Drain which leads to the River Hull).
Envirotreat employed an ex-situ soil mixing strategy to treat in excess of 6,500m³ of contaminated soils at the Bartoline site.
The works were conducted over a period of 2 months under Envirotreat’s Mobile Process Licence (MPL). Specialist technology, materials and supervision were supplied by Envirotreat, whilst C.R. Reynolds (Construction) Ltd supplied all the required plant, and labour for application of the Envirotreat Process.
Envirotreat were requested to undertake the validation of the excavations. The identified contamination was excavated, stockpiled and treated on-site using the Envirotreat E-Clay technology. The treatment operation utilised 2 No. slurry production units and mixing zones.
The slurry production set up comprised two 1000L paddle mixers where the E-Clay reagents were combined together before being pumped across to the mixing zone. Two excavators mounted with a specialist processing bucket attachments then mixed the E-Clay slurry and contaminated soils.