The Ludmilla project involved the upgrade of the existing wastewater treatment plant and associated pumping stations and rising mains to the outfall structure. It was the largest sewer project ever undertaken by NT Power and Water Corporation. We designed the brownfield upgrade to utilise most of the existing infrastructure. The design was sensitive to the challenging construction conditions and ensured ongoing service levels to customers.
Hunter H2O was responsible for the detailed design of the primary sedimentation process, digestion and centrifuge system, as well as contractual management of construction and commissioning management.
On completing the detailed design phase, Hunter H2O was also appointed to act as the Client’s Engineer for the upgrade
As Client’s Engineer, Hunter H2O managed the main construction contractor. This included:
- Project and contract management
- Tender assessment and contract award (within NT Power & Water’s procurement framework)
- Ongoing works inspections for quality auditing
- Processing progress payments
- Formulating responses to requests for information from the main contractor
- Contract administration including assessing variations and enforcing contract clauses to ensure the timeliness and project quality met the client expectations.
- During this time, our project team also led the Commissioning Phase for the project.
Hunter H2O won an Engineering Excellence award (Design and Client’s Engineer) in 2014 for this project in the Northern Territory awards. Our team successfully delivered the award-winning project under budget and on schedule.
This project demonstrated that through our robust design practices and close contractor management, we achieved customised client driven outcomes for the benefit of the local community. The Ludmilla WWTP is an excellent example of Hunter H2O’s ability to undertake large scale sewerage treatment augmentation projects from ‘cradle to grave’