Although Dig and Dump is the quickest method for removal of Japanese Knotweed it is environmentally unfriendly and can be very expensive.
Reduced Waste
By accurately identifying the knotweed rhizome (roots) in the ground during excavation we only remove the relevant areas containing knotweed. This means we can eradicate all of the knotweed with up to two-thirds less waste than some other contractors who routinely use the ‘7×3’ rule (where excavation is 7 metres lateral from the visible growth and to a depth of 3 metres).
Reduced landfill volumes
Japanese Knotweed waste is classed as “controlled waste” and must be disposed of in line with the Duty of Care Regulations 1991 under the Environmental Protection Act 1990.
By minimising the amount of controlled waste, we’re actively helping to reduce landfill levels. This is better for the environment and conforms to the Environment Agency’s ‘Knotweed Code of Practice 2013’, which requires quantities of knotweed waste removed to landfill to be substantially reduced.
The Government is also seeking to reduce landfill levels, with a target of zero landfill disposals by 2020.
While sending the waste to landfill is not as sustainable as on-site burial, our methods for reducing excavated waste help to minimise the environmental impact.
Saving you money
Less waste also means fewer loads to transport to landfill and therefore fewer transportation and landfill tax fees, saving you money.
Contamination
If the knotweed waste is also contaminated or hazardous (such as excess heavy metals or presence of asbestos), it can still be disposed of at specially licensed landfill sites. Contaminant or hazardous substances are normally tested for by way of a soil sample before we begin the knotweed excavation.
