This is a charge for the amount of sewage (waste and greywater) you put into the sewerage network via the sinks, drains, toilets and appliances such as washing machines and dishwashers.
It is effectively a charge for your 'use' of Unitywater's sewerage services, as it pays for the treatment and disposal of your sewage, which is transported by sewer pipes and pump stations to our sewage treatment plants. Your sewage is put through stringent cleansing processes to ensure that its disposal is safe for our community and the environment, and complies with very strict environmental legislation.
This charge also contributes to the 24-hour emergency response service we provide to our customers 365 days a year.
Find out more about what happens after you flush?
Sewerage usage is a variable charge because it is based on the amount of water used at your property. As there is no meter to measure the amount of sewage, it is calculated as being 90% of your average daily water usage (as measured by your water meter), and is charged at the price per kilolitre (1000 litres).
In other words, we estimate that 90% of the water that comes out of your taps, shower, bath, toilet, dishwasher and washing machine goes into the sewer network. This charge is capped when sewerage usage reaches 740 litres per day for residential customers. The cap limits the impact on high water users and anyone who may have a concealed leak on their property.
More information on pricing for your region.