Melton Water Quality: What’s Actually Coming Out of Your Taps

Who manages your water

Your water supply and local infrastructure are managed by Greater Western Water. They are the government authority responsible for the pipes and water quality across Melbourne’s western growth areas. If you have concerns about the safety of your water or experience significant discolouration due to nearby construction works, they are the primary authority for your region.

Where your water actually comes from

Melton is primarily supplied via the Melbourne supply system, drawing water from the Thomson and Silvan Reservoirs in the Yarra Ranges. In 2026, due to the massive population surge in the west and lower rainfall inflows, this mountain water is regularly supplemented by the Victorian Desalination Plant. Because your water is a fluctuating mix of mountain rain and treated seawater, the taste and mineral profile can change from month to month. Whole-house water filters help to standardise this supply, providing a consistent taste and feel regardless of how the city’s grid is being balanced.

The specific challenge for Melton homes

While water in Victoria is typically soft, usually measuring between 20,60 mg/L, Melton residents face two distinct infrastructure-related issues:

• Chlorine Residuals: To ensure water remains safe as it travels through kilometres of new pipes to reach the edge of the growth corridor, Greater Western Water maintains chlorine levels at a high residual. Residents in new estates often notice a strong swimming pool smell in the shower, which can dry out sensitive skin and make drinking water taste like chemicals.
• Construction Sediment: As new estates and street stages are tapped into the live network, the pressure changes dislodge fine grit, rust, and dirt from the mains. This sediment travels through the pipes and ends up trapped in your high-end tap aerators or, more significantly, clogging the sensitive internal valves of your new dishwasher and washing machine.