Modular UV Disinfection Upgrade for Learmonth
In May 2025, Central Highlands Water identified a potential E. coli risk at one of its bore supplies from surface water contamination during heavy rain events. The bore is located within a volcanic scoria formation, making surface water ingress difficult to prevent.
Strengthening treatment barriers and maintaining supply resilience became a key focus, and FILTEC was engaged under a Design & Construct contract to deliver a validated UV treatment barrier at Learmonth, Victoria.
FILTEC designed, prefabricated and installed a modular UV disinfection system incorporating a Trojan UV Swift D06. The system provides a validated ultraviolet treatment barrier achieving log-removal targets for protozoa, bacteria and viruses.
Mitigating Surface Water Ingress Risk in a Volcanic Bore Formation
Heavy rainfall events increased the risk of surface water ingress into the bore, located within a porous volcanic scoria formation, elevating E. coli risk and requiring strengthened treatment barriers. Central Highlands Water required:
A validated UV treatment barrier compliant with USEPA UVGM standards
4-log protozoa and bacteria reduction
1-log virus reduction
Rapid mobilisation with minimal supply disruption
Modular design suitable for replication across similar sites
The solution needed to be delivered quickly while maintaining design robustness, regulatory confidence and ease of operation.
Trojan UV Swift D06 with Integrated Strainer Filtration
FILTEC supplied and installed a Trojan UV Swift D06 system, selected for its validated performance and suitability for small community drinking water applications. The upgrade incorporates:
Trojan UV Swift D06 reactor (6-lamp)
Validation to USEPA UVGM standards
Automatic dose pacing from flow and UVT
Trojan OptiView UVT analyser
100mm Y-type strainer filtration
Pressure and valve position monitoring
SCADA integration and remote monitoring
The system achieves 4-log protozoa reduction, 4-log bacteria reduction and 1-log virus reduction, providing a verified disinfection barrier.
Prefabricated UV Building for Rapid Site Integration
FILTEC delivered full mechanical, electrical, civil and process integration for the UV installation, reducing coordination risk and aligning treatment performance with supporting infrastructure.
Onsite pipe work realignment
Civil works, building supports and site contouring
Sediment controls to protect the aquifer during civil works
Mechanical pipework connections during commissioning
Electrical integration and remote SCADA control
Mechanical assemblies were prefabricated in FILTEC’s Melbourne workshop to improve quality control and reduce onsite programme duration.
Commissioning, Automation and Regional Replicability
The system is automated, using real-time UVT monitoring and automatic dose control to maintain validated performance under variable bore-water quality.
UV intensity and sensor verification
Pressure and flow confirmation
Control logic validation
SCADA integration and remote monitoring verification
The Learmonth installation now serves as the reference design for Central Highlands Water’s wider UV rapid deployment programme across the Ballarat region, enabling consistent and efficient delivery at additional sites.
Strengthened Multi-Barrier Protection for Learmonth
The Learmonth Water Treatment upgrade delivers:
A fully validated UV treatment barrier
4-log protozoa protection capability
Independent disinfection resilience to support the site chlorine system
Rapid modular deployment under urgent timeframes
A scalable and replicable prefabricated design model
Through integrated design, prefabrication and UV technical expertise, FILTEC delivered a rapid yet robust solution that strengthens drinking water security and regional infrastructure resilience.
