Construction of a new sediment basin designed to provide a total water storage capacity of approximately 35,000m3
Installation of two swale drains and an overflow system connected to Lake Liddell to manage excess flows
Oil and Grit Trap cleaned and cleared of contaminated sludge to restore its operational capacity
Key Challenges
Volume of contaminated sludge significantly exceeded initial scope/expectations. Geotextile dewatering tube solution introduced to reduce overall volume prior to bulk load out and onsite capping and containment
Sequencing of Oil & Grit Trap cleaning in parallel with basin works to maintain operational capacity and reduce environmental risks during (concurrent) demolition works
