Client engaged TDG to assist with a major sediment removal and rectification works project for multiple On-Site Detention Basins within an airport in NSW. These OSDs had suffered years of neglect and were contributing to localised flooding in major rain events. Scope of works outlined below.
Due to years of neglect, access to the On-Site Detention Basins was poor; overgrown vegetation blocked access to most sites along with previously eroded access tracks to basin entries. Additionally, the OSD outlets were blocked with unmaintained vegetation and large sediment deposits, resulting in improper water discharge as per their design, thereby complicating the removal works.
TDG provided an end-to-end cost-effective solution by project managing, removing, and transporting over 300t of PFAS-traced material from multiple OSDs within an airport in NSW, successfully exceeding client expectations. Works were delivered on time, within budget, and with zero environmental harm, accidents, or incidents.