A clear, detailed explanation of IVM’s supervised excavation methodology — a controlled, cost‑effective alternative to traditional Dig & Dump operations for Japanese knotweed removal, reducing soil volumes, environmental impact and overall project costs.
A detailed explanation of IVM’s supervised excavation methodology, offering a controlled, cost‑effective alternative to traditional Dig & Dump operations for Japanese knotweed removal.
Excavation and off‑site removal — commonly known as “Dig & Dump” — is often used by construction companies on sites where time is critical. Following Environment Agency guidelines, this method requires removing soils up to 7 metres horizontally from the last visible plant and 3 metres deep.
The excavated material must then be treated as controlled waste under the Environmental Protection Act 1990 and transported to a landfill site licensed to accept invasive plant waste. Due to recent changes in landfill legislation, suitable facilities can be difficult to locate.
Excavation to EA standards is often impractical on many sites due to nearby structures, roads, boundaries or neighbouring land. Additional financial and environmental costs also arise from:
IVM can supply a fully trained specialist to oversee and advise during Japanese knotweed excavation. With an IVM expert supervising operations, the volume of soil requiring removal can be significantly reduced, lowering both cost and environmental impact.
This supervised methodology is fully guaranteed by IVM and can deliver savings of around 65% compared to traditional Dig & Dump operations.
Key benefits of IVM Supervised Excavation include:
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