Holme Chapel Excavations
- Ongoing sampling and testing regime to establish accurate waste classification of excavated material.
- Removal of 8,000 tonnes of contaminated non-hazardous rail ballast from site.
- Achieve 95%+ recovery rate for all waste streams removed from site.
- Source alternative recycling and recovery options for varying degrees of excavated material dependent on clay content.
- Ongoing physical inspection of material to ensure compliance.
- Implement segregation strategy to separate and minimise clay based ballast.
Ecofficiency were tasked by AMCO to provide soil testing and waste classification services to monitor ongoing waste arising’s from tunnel excavations.
AMCO required cost effective removal and recycling options for the material with a view to avoidance from landfill.
The waste ballast needed to be assessed from both a chemical and physical perspective to determine its suitability to recycling or for restoration due to varying degrees of quality.
Heavy clay content within deeper excavations determined a percentage of the material to be unsuitable for recycling and reuse. Alternative restoration sites were sought with a view to avoid expensive landfill tax charges.
Successful segregation of the clay based ballast was essential to minimise volume and reduce costs.
Throughout the tunnel excavation Ecofficiency successfully removed 8,000t of various degrees of ballast material for recovery and restoration.
100% recycling & recovery of the excavated material.
100% avoidance of landfill.
Production levels throughout the project were maintained to ensure stockpiles were kept to a manageable level.
Compliance was maintained through close monitoring and inspection of the excavated arising’s with rejected loads being reduced to a minimum.