Wastewater services

There are two wastewater treatment plants in the Westernport region. These process 1100 megalitres (ML) of domestic wastewater each year.

The Cowes Wastewater Treatment Plant (CWWTP) is the main plant treating 90 per cent of waste by volume. The secondary plant, the King Road Wastewater Treatment Plant (KRWWTP) in Coronet Bay, treats the remaining 10 per cent of waste by volume. Both accept domestic waste only. The CWWTP can treat up to 8.5 ML per day and the KRWWTP can treat up to 0.35ML per day.

Westernport Water supplies wastewater services to 90 per cent of properties that receive water.

Wastewater charge

Wastewater charges are levied as a stepped annual service charge. There is no volume charge component. All serviced properties are liable for an annual service charge, whether connected or not. Properties with more than two cisterns are levied a cistern charge for each additional cistern.

You can download a copy of an application for a sewer connection pdf form (105 KB) or contact Westernport Water on 1300 720 711 or email westport@westernportwater.com.au for more information about sewer connections.

For more information about wastewater charges visit our Access & usage charges pages (under Customer-commercial or Customer-residential).

Keeping our sewers clean and environment healthy

Things to be mindful of - including basic information about what you can put down the sink, or flush away in the toilet to prevent blockages and potential damages to the environment. Click Here