We’re embarking on a major upgrade to the Cowes Wastewater Treatment Plant to support economic prosperity and liveability on the Bass Coast.
The $27M* project will be our largest ever single infrastructure project and will ensure the plant has sufficient capacity for a projected increase in sewage volumes, while continuing to protect public health and the environment.
*2025 estimate subject to market conditions.
What the project involves
Located within the existing footprint of the Cowes Wastewater Treatment Plant on Pyramid Rock Road, the upgrades are largely mechanical and electrical and are based on proven technologies of the existing plant.
New treatment technologies, the latest design principals, and allowances for the future will be incorporated into the new integrated system and structure. There will be no impacts to sewer services. Occasional traffic management will be required to ensure public and contractor safety.
When will construction start?
Subject to planning and approvals, we anticipate that construction will start in late 2026.
Works will take approximately three years to complete, with commissioning of the upgraded plant anticipated in late 2029.When and where are works occurring?
Contact us
Please call 1300 720 711 or and ask to speak with the Project Manager or email Westernport Water, cowesupgrade@westernportwater.com.au
National Relay Service (TTY Text Phone): 133 677 then ask for 5956 4100
If you are deaf, or have a hearing or speech impairment, contact us through the National Relay Service: