Excavation and Cell-Burial, Cornwall

Excavation and Cell-Burial, Cornwall

cell burial in Cornwall

JKL surveyed the site and found a number of knotweed locations, one of which was located within the footprint of the proposed dwelling. A Knotweed Management Plan (KMP) was drawn up, which included several remediation options for the customer to consider.

Unfortunately the cost of landfill disposal of knotweed in Cornwall is prohibitively high (and much higher than most other areas of the UK). This means that finding an on-site sustainable remedial solution is often impetrative to our Cornwall based clients.

Fortunately this particular site possessed enough space to allow for a sustainable remediation method called ‘Cell-Burial’. The knotweed was fully excavated from multiple locations and temporarily stockpiled on site. The JKL Site Supervisor then calculated the size of the burial pit required and agreed with the client the most appropriate location for this. The receival pit was then excavated and lined with specialist non-porous root barrier, after which the knotweed contaminated soil was deposited within and the root barrier returned and butyl heat sealed over the top of the deposited material to form a secure cell. Clean spoil derived from the site was then used to backfill over the cell to a depth of 2.0m.

JKL site supervisors are part of our fully trained and professional operations team. All works on site are completed efficiently and in accordance to the Environment Agencies ‘The Knotweed Code of Practice’, 2013. Full records or works are retained and entered into the KMP document, which we furnish our clients with on completion.

On completion our client was able to develop the site free from the risk of knotweed. They were also afforded a 10 year Insurance-backed Guarantee.

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