Geotechnical and
Environmental Services

Specialists in the investigation, assessment and reclamation
of development land.


A viable option where space is available.

Rather than disposing of knotweed contaminated soils off site to a suitable landfill, it can be buried on site where sufficient room is available.  Ideal places for burial are beneath large public open spaces where a ‘cell’ of knotweed contaminated soils can be placed at depth within a wrapping of geomembrane (special plastic sheet).  This operation requires the same level of care as with excavation and off site disposal to avoid spreading the plant. 

The burial operation must also be undertaken in strict accordance with Environment Agency guidance to ensure the operation does not fall foul of criminal offences under waste management legislation.