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Pipeline Rehabilitation for Community Centre in NSW

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 […]

Project Highlights

  • Improved Drainage Capacity: Clearing the target line ensured optimal flow during heavy rainfall, mitigating flooding risks.
  • Enhanced Pipeline Integrity: Elevating the pipeline’s serviceability and structural integrity from a rating of 4/5 to 1/5, ensuring long-term reliability.
  • Cost-Saving Council Solution: Avoidance of pipeline removal and replacement, offering cost-effective alternatives for the council.

MSI Inspection in Wellington

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.

Project Highlights

  • Proactive Identification: Through proactive identification, the TDG Team detected severe corrosion, initiating a comparison report spanning inspections from 2013, 2018, and 2020, which revealed substantial increases in wall loss percentages (2013 = 16%, 2018 = 26%, 2020 = 28%), validating the effectiveness of MSI technology and underscoring the necessity of ongoing inspections for infrastructure planning and budgeting.
  • Prominent Waterfront Location: Undertaken in a high-profile waterfront setting, the project presented unique challenges and heightened visibility.
  • Innovative Reporting: Pioneering the development of a comparison report with the Red Zone, TDG presented findings to the client, quantifying progressive pipe wall degradation over three consecutive inspections.

CCTV and Laser Profiling in Wellington

TDG was tasked by the client to conduct comprehensive data collection within the project’s catchment area to evaluate network conditions and renewal needs. This involved employing various techniques, including CCTV inspections, laser profiling, and GPS surveying.

Project Highlights

  • Comprehensive and Seamless Offerings: TDG’s integrated service offerings and efficient transition to the design phase met client requirements with expertise and efficiency.
  • Enhanced Pipeline Mapping: Uncovering buried manholes and updating GIS data accurately enabled precise calculation of liner length requirements, demonstrating attention to detail and technological proficiency.
  • Client Satisfaction: The client expressed utmost satisfaction with the project outcome, highlighting TDG’s ability to exceed expectations on a challenging assignment.

Car Removal from Creek in NSW

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.

Project Highlights

  • Expert Removal: The contractors lifted the car without any issues, showcasing their proficiency in such operations and preventing environmental harm.
  • Efficient Traffic Management: Traffic control measures were effectively implemented to ensure public safety during the works, demonstrating meticulous planning and execution.
  • Environmental Protection: The project successfully prevented environmental damage or flooding, highlighting TDG’s commitment to environmental stewardship.

Liquid Waste Removal for Event in VIC

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.

Project Highlights

  • Efficient Liquid Waste Removal: Successfully removed over 710,000 litres of liquid waste throughout the event
  • Collaborative Approach: TDG collaborated with numerous local suppliers to achieve desired outcomes, demonstrating effective teamwork and partnerships.
  • Meticulous Planning: Implementing a meticulously planned strategy, TDG executed the full scope of work within a challenging environment and tight timeframes, ensuring smooth operations throughout the event.

Traffic Management and NDD Works in VIC

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.

Project Highlights

  • Meticulous Planning: Thorough collaboration with clients and local suppliers ensured precise project execution, with works strategically scheduled for minimal disruption to the public.
  • Efficient Traffic Management: Overcoming challenges of a busy intersection, essential lane closures were managed adeptly, minimizing disruption to nearby schools and shopping complexes.
  • Timely Completion: With skilled teams and effective coordination, the project was completed well within operational timeframes, exceeding expectations and restoring normal traffic flow ahead of schedule.

Cleaning of NSW Sewer Treatment Plant

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 […]

Project Highlights

  • Safe Grease Removal: TDG safely removed years of grease buildup from the sediment tank using a Class B pump for water blasting, avoiding the need for hot works.
  • Rigorous Safety Measures: TDG meticulously planned and executed the project, ensuring strict adherence to FIFM and LOTO procedures, thorough equipment testing, and provision of appropriate PPE.
  • Effective Communication: TDG maintained constant communication with the client and contractors, ensuring a smooth and safe workflow, demonstrating professionalism, and delivering successful outcomes.

Sediment Removal at Airport in NSW

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.

Project Highlights

  • Efficient Sediment Removal: TDG efficiently managed over 300t of PFAS-traced sediment from multiple On-Site Detention Basins at the airport, addressing years of neglect and flooding issues.
  • Cost Savings: TDG negotiated competitive disposal pricing with licensed facilities, resulting in significant savings for the client.
  • Overcame Access Challenges: TDG provided an end-to-end solution, completing the project on time, within budget, and with zero environmental harm, exceeding client expectations.

Cleaning of a Culvert Chamber in NSW

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.

Project Highlights

  • TDG’s team successfully removed the debris, with over 95% being recycled, aligning with sustainability goals and contributing to a circular economy.
  • Despite the challenging conditions, TDG exceeded expectations by completing the project one day ahead of schedule.

Wastewater Inlet Works Cleaning in NSW

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).

Project Highlights

  • Confined Space Entry: removing rags and debris around the blocked pipes
  • Ultra High-Pressure Water Blasting (UHPWB): leveraging cutting-edge technology to effectively clean inlet pipes and sump.
  • Eco-Friendly Solution: sucking debris and sludge out of the inlet pipes and sump with the TDG Eco Recycler

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