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Castlemaine developed into a major regional centre during the gold rush. Located in the Mount Alexander Shire, it has a population of around 6700 people.

You can view the latest Water Summary for Castlemaine here.

Water restrictions

Water Supply

Coliban System (Southern) - supplies Castlemaine, Kyneton, Maldon, Newstead, Malmsbury, Harcourt, Elphinstone, Tylden and Taradale. Raw water is supplied by our Coliban River catchment storages: Upper Coliban, Lauriston and Malmsbury Reservoirs, located near Kyneton and the Coliban River.

Water Treatment

Water is treated at the Castlemaine Water Treatment Plant, operated by Veolia.

The Water Treatment Process (PDF 43KB) includes microfiltration, coagulation/flocculation, BAC, ozonation, pH correction, fluoridation and disinfection.



Sewage from Castlemaine, Campbells Creek, Chewton, Harcourt, Newstead and Maldon flows through an extensive sewerage system to the Castlemaine Water Reclamation Plant (WRP).

The sewerage system also collects trade waste from commercial sites.

What happens at the water reclamation plant

The WRP produces treated Class C recycled water through a series of processes including screening, biological nutrient removal, aeration, chemical dosing, clarification and UV disinfection.

Treated water is used for irrigation at the Castlemaine Golf Club and release into Campbells Creek as use for dust suppression and construction works has ceased.

Biosolids are also treated and used on farmland for the nutrients.


The nearest standpipes to Castlemaine are:

  • Tivey Street, Newstead
  • Fountain Street, Maldon
  • Roderick Street (corner of Jackson Street), Taradale

For more information on standpipes and how to use them, see water carting.

Projects and planned works

We plan projects and works to maintain and improve our services. Find out more about our current projects or planned works in our region.


Last updated on 22 Apr 2021
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