Schlossmatt Development, Kilchberg Construction project on a site with extensive Japanese knotweed (neophyte) coverage
Place: Kilchberg (ZH)
Phases: Planning, proposal, execution and commissioning (success monitoring)
Construction costs: -
As part of a construction project, the extensive neophyte coverage was removed and the contaminated soil was disposed of. The roots and rhizomes of the Japanese knotweed had to be excavated to a depth of approximately 3-4 m as part of the complete remediation of the site. Additional excavation work, follow-up monitoring and other control measures ensured that no neophytes could spread from adjoining properties.
- Survey of neophyte presence at the project site
- Development of a process and decontamination plan for neophyte clearance and excavation of biologically contaminated material.
- Contracting out the clearance and disposal of the existing knotweed
- Neophyte site management
- Site management of soil and earth connected with biological contamination by neophytes, including final documentation as part of “private monitoring”
- Follow-up monitoring at the project site and in the border area with regard to the recurrence of knotweed coverage
- Very extensive coverage with Japanese knotweed
- Handling existing knotweed on adjoining properties (park with biotope)
- Knotweed cover in the root zone of protected trees (excavation using tree protection measures)
- Coordination of the “total remediation” objective with the construction project