Cassilis Sewer Treatment Plant

  • Project typeConstruction of Sewer System
  • Project value$9.7 Million
  • Project scheduleNot available
  • Contractor nameNot available
  • Completion Date31 December 2028
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The Cassilis Sewer Treatment Plant Project will deliver long-overdue modern sewer infrastructure to the village of Cassilis, improving public health, environmental outcomes, and paving the way for more resilient services into the future.

This project responds to the critical need for a centralised sewage system in Cassilis, where ageing and often failing on-site septic systems have posed ongoing challenges. Once complete, the new system will serve residential properties, key community facilities and commercial sites, including those that support major local events like the Cassilis Rodeo and Campdraft.

Backed by the NSW Government’s Regional Water and Waste Water Backlog Program, the new sewer scheme includes a reticulated collection system, a purpose-built pump station, and a multi-stage sewage treatment plant with an effluent reuse system for pasture irrigation on Council-owned land.

Environmental safeguards have been embedded in every stage of the design, from pond-based treatment with extended detention times to a land-based irrigation system that avoids discharge to local waterways.

The project represents a major infrastructure investment in the future of Cassilis, enhancing liveability, supporting environmental protection, and enabling long-term sustainability for the local community.