By working together, we explore innovative solutions to reduce the project’s carbon footprint, and increase its efficiency and affordability. From treatment systems to storm water storage, we’ll help find a solution for every challenge.
Our team of specialist engineers combine extensive expertise with industry-leading techniques and cutting-edge technology to fully understand clients’ wastewater asset needs.
We use our detailed understanding of asset health and client requirements to inform feasibility assessments and optioneering. Together with our clients, we identify the optimal design and programming to guarantee the most sustainable, cost-effective and efficient solution.


Wastewater assets
- Storm tanks
- Combined sewer overflow
- Reed beds
- Outfalls
- Artificial wetlands
- Drainage
- Storm lakes
- Sludge tanks
- Settlement tanks
- Lagoons
- Filter tanks
- Bio-filters
- Access steps & platforms
- Digesters
- Holding tanks
- Treatment tanks
- Trickling filters
- Wet wells
- Septic tanks
Wastewater consultation services
- Asset data capture, diagnostics & analytics
- Bathymetric sonar surveys & 3D modelling
- Condition surveys, investigation & inspections
- Drone & confined space surveys
- Laser scan structural condition surveys
- ROV underwater investigation & inspections
I am part of the wastewater asset maintenance team, where we support our clients in ensuring their assets comply with government regulations. I am proud of the work I do at Stonbury, which directly contributes to improving water quality, reducing storm overflow discharge and maintaining sustainable tertiary treatment systems.
Derek Allgood
Project Manager
Awards & Accreditations






















