Japanese knotweed on-site burial is a technique recommended by the Environment Agency for as it diverts waste from landfill and is sustainable, quick and cost-effective.
It is recommended that Japanese knotweed on-site burial is considered early on in Knotweed remediation programme to ensure that a suitable location is found.
There are two recognised and approved methods for on-site burial of Japanese knotweed, the first of which is to bury all of the knotweed-impacted waste to a depth of at least 5 metres. The alternative is to encapsulate the knotweed-impacted waste inside a buried cell constructed from an appropriate root barrier. The top of cell must sit at a minimum of 2 metres below finished level.
The advantages of on-site burial of Japanese knotweed are:
- Because the knotweed-impacted waste stays on site, it does not require licensed transportation and disposal
- It is often more cost-effective than using off-site disposal
- It complies with a Site Waste Management Plan (SWMP), applicable to construction projects over £300,000 in England
- There is a very low residual risk of future Japanese knotweed issues
How PBA Solutions help you
PBA Solutions have many years of experience in the excavation and burial of Japanese knotweed on-site, providing an end-to-end package or selected management services only, where the developer completes work using their own machinery under the watchful eye of a PBA Japanese Knotweed Clerk of Works. For both of these options, PBA will develop detailed management plans and also offer insurance backed guarantees.
For your peace of mind, PBA have accreditations with Safe Contractor, Constructionline and CHAS. Our staff carry CSCS cards, with all our technicians being SSST (Site Safety Supervisor Trained) qualified. PBA also retain the expertise of an independent health and safety advisor.