Neilly Group was engaged by the District Council of Loxton and Waikerie to design and construct a stormwater reuse wetland system at Hart Lagoon, adjacent to the River Murray. The project addressed stormwater runoff from Waikerie township and surrounding agricultural areas, which previously polluted the lagoon with sediments and contaminants.
The solution included a stormwater harvesting and reuse system that treats runoff, restores wetland functions, and supports local irrigation — a strong example of Integrated Water Management and Water-Sensitive Urban Design.
Key project elements:
- Catchment Management: Runoff from 129 ha captured via swales and sedimentation basins.
- Infrastructure: 3,170 m² constructed wetland and 8,140 m² storage pond, pumps, tanks, and reuse system for irrigation and fire emergency use.
- Community Features: Nature play spaces, trails, bird hides, and seating.
- Environmental Impact: Reduced nutrient and sediment pollution, restored native vegetation, habitat for migratory birds, enhanced biodiversity, and mosquito population control.
- Key Results: 55 ML/year of stormwater treated (meeting ~84% of community demand), recreational and educational facilities created, and strong local engagement with schools and contractors
