Sewer works in Harkaway from March 2023

South East Water has been working with the City of Casey, under their Domestic Wastewater Management Plan, to identify areas where household waste from failing septic systems is polluting groundwater and the environment. Harkaway has been identified as an area where this is occurring.

To remove this risk for the community, we're extending the sewerage network to 104 properties in the Harkaway area, to reduce the use of existing onsite septic tanks on smaller blocks (under 0.4 hectares).

To arrange a free site visit from our Connections Team please call 1800 720 613 or email

What we're doing

We're constructing the Harkaway Pressure Sewer Scheme to reduce the use of existing onsite septic tanks on smaller blocks (under 0.4 hectares). We've appointed Interflow to help us deliver this project. 

We’ve also engaged with customers on larger blocks on the periphery of the scheme to determine their interest in having the sewer extend to their properties enabling them to connect. The map below shows the final alignment of the new sewer pipes to be installed.

When it's happening

We started work in early March 2023 and planned to take around 15 weeks to finish construction (depending on the weather).

Our final checks and approvals are taking a bit longer than expected. We apologise for the delay and we’ll let you know when connections are available.

You can expect us to work Monday to Friday between 7 am and 6 pm. On the odd occasion, we might need to work at other times for safety, technical or permit reasons.

What might impact you

We’ll do our best to keep impacts to a minimum, however these are the kinds of things you might notice while we work:

  • More trucks on the streets around you.
  • Less car parks on some streets.
  • Noise from machinery, like beepers when trucks reverse.
  • A change in normal traffic flow around the works area.
  • Our traffic management team will be around to make sure people, bikes and cars can move around safely.
Don't miss these details

We’re working with our delivery partner Interflow to minimise construction impacts to the community.

When we’ve finished the job, we’ll leave things how we found them and make sure we return any areas we’ve impacted as close as possible to their original condition.

Properties under 0.4 hecatres are eligible to connect under the scheme. Any properties over 0.4 hectares or vacant blocks, don’t qualify for connection under the scheme, however can still connect if the property fronts the new sewer main for an additional fee.

See below for the project FAQ, information on costs and our hardship policy, for those experiencing financial difficulties.

Where we will be working

Blue legend icon Location of pressure sewer pipes to be installed

Blue legend icon   Extended scope of works

Blue legend icon   Backlog boundary


Need to get in touch?

We're here to help.


Contact us via phone

1800 330 129

Contact us via email

Contact us via post

Harkaway Sewerage Scheme
PO Box 2268
Seaford VIC 3198

Translator Interpreter Service
All languages 03 9280 0779


National Relay Service (NRS)
TTY: 13 36 77 (ask for 131 851)