The client was constructing a novel capping system for a municipal Landfill using evapotranspiration capping system design and construction techniques. Key challenges included:
1. Procurement of sufficient soil for the construction works, including confirmation of the absence of contamination.
2. Completion of trial pads to validate the construction methodology.
3. Adherence to the requirements of Design Documents approved by the environmental regulator, together with specific conditions provided by the regulator.
4. Integration of the evapotranspiration capping system with surrounding 'conventional' capping systems.
5. The establishment and monitoring/maintenance of the vegetation to ensure the function of the capping system.