TDG was engaged for assessment and rectification of 4.5 kilometers of Stormwater conduit and maintenance holes, utilising CCTV inspections or physical traversing methods, followed by necessary rectification works.
TDG was engaged to pressure clean and record data from pressure drains at the base of the Dam wall and spillway. The drains provide important pressure release role in operation of the dam to mitigate destabilising pressure in the structure.
TDG delivered a comprehensive and organised solution to fulfill the client’s specified works scope, involving coordination with various contractors such as locators, traffic management, and surveyors, while navigating through multiple jurisdictions and permits including those from local government, Department of Transport, and resident notifications.
The client engaged TDG to carry out smoke testing as a proactive measure to identify and address leaks and defects in sewer systems. The local pump station for council has recorded more water going through then what is scheduled capacity. Through the implementation of smoke testing, TDG successfully pinpointed areas of concern within their sewer […]
The client engaged TDG to conduct an investigation into a pipeline connected to a drainage tank for a Community Centre, which experienced surcharge and flooding during heavy rainfall. Through CCTV investigation, we identified the pipeline obstruction caused by large tap roots and masses. Subsequently, TDG was tasked with restoring the pipeline to its full structural […]
The project in Wellington involved TDG Environmental using Multi-Sensor Inspections (MSI) to profile interceptor corrosion, resulting in the discovery of rapid degradation, demonstrated through a comparison report spanning 2013 to 2020, highlighting the need for ongoing inspections and leading to client satisfaction and pipeline relining.
The client engaged TDG to provide a comprehensive data collection within the project’s catchment area to assess network conditions and renewal needs, employing various techniques such as CCTV inspections, laser profiling, and GPS surveying. Despite challenges like difficult access and high infiltration, the project successfully provided essential data for detailed design and construction, resulting in […]
The successful removal of a submerged car from creek in Sydney NSW, conducted by experienced contractors via crane while ensuring minimal environmental impact and implementing traffic control for public safety, resulted in a safely accessible site following completion of fencing repairs and car removal.
TDG provided liquid waste removal services for the 2023 Airshow, managing the largest attendance in the event’s history; approx 20,000 per day during the trade days and 80,000 people per day during the general public days. With 8 vehicles strategically stationed on site, we removed over 710,000 litres of liquid waste throughout the event.
The project involved meticulous organisation and execution of traffic management plans, including MOAs and TGS, as well as hydro excavation to expose services and utilities for service proving. Close collaboration with surveyors facilitated accurate service proving, while careful attention was paid to reinstating surfaces to their original condition.
Client engaged TDG to assist with grease removal using a Class B pump for water blasting. After years of grease buildup in the sediment tank, it was deemed unsafe for the contractor to perform any hot works. TDG entered the confined space and removed all hot work hazards using high-pressure water blasting and emulsified grease […]
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.
Faced with an extremely challenging culvert, this historic brick arch required precision and caution due to its fragile nature, susceptible to damage if mishandled. TDG Environmental was tasked with cleaning out the culvert chamber, measuring nearly 30m in length and 2m in width.
TDG Environmental was reached out by a local council to clean and clear the blockages at the inlet. The client was also aware that we were unable to clear the blockages without Ultra High-Pressure Water Blasting (UHPWB).
Stormwater Survey, Inspection and Condition Assessment of the entire North Adelaide Storm Water network
TDG’s unmanned (remote operated) dredge is unmatched when it comes to delivering efficient desludging of wastewater lagoons. The minimal footprint requirements of the equipment profile make it an ideal solution for sites that have challenging site constraints.
Successful Partnership with TDG and client in delivery of Sewer Bypass in Queensland
Cleaning of one of the largest pump stations in Brisbane, handling all waste from the S1 trunk main.
TDG was contacted about using our high-pressure robotic cutter to remove concrete slurry that had entered a 375mm trunk sewer main during construction. Another contractor had started the process of removing the concrete deposit but their robotic milling unit was proving to be ineffective and as a result an alternative methodology was needed.
Australia 1300 330 294
AU 1300 330 294 
info@tdg.com.au 
