Lara Water Hardness & Quality Report (2026)

Barwon Water is the regional utility serving Lara in the City of Greater Geelong, Victoria, Australia, delivering drinking water to over 300,000 customers across the Bellarine Peninsula and surrounding areas. Lara receives treated water primarily from the Wurdi Youang Water Treatment Plant near Geelong, sourcing surface water from the Barwon River and Central Highlands reservoirs like the Moorabool System. This supply is supplemented by desalination from the Victorian Desalination Plant at Wonthaggi and local groundwater bores. The utility manages a network of reservoirs, pipelines, and advanced treatment facilities to ensure a reliable supply for its residents.

The Barwon River watershed spans the Otway Ranges and Victorian Volcanic Plains, with catchments influenced by Ordovician sandstones, Devonian granites, and extensive Quaternary basalt flows from the Newer Volcanics Province. Lara's groundwater taps into the Eastern View Formation and basalt aquifers within the Port Phillip Basin. This volcanic and sedimentary geology imparts a soft water character, with naturally low levels of calcium and magnesium due to limited limestone dissolution and effective natural filtration through basaltic soils, minimising mineral accumulation during recharge.

As soft water, Lara's supply poses no scaling risks to plumbing, appliances, or fixtures, eliminating buildup in kettles, water heaters, or dishwashers. Soap and detergents lather efficiently without excess, reducing cleaning product use. No water softener is needed or recommended; instead, focus on corrosion prevention through pH-balanced treatment. Routine maintenance involves checking for internal pipe corrosion over time, as soft water can be slightly more aggressive toward metals. Barwon Water maintains excellent compliance with Australian Drinking Water Guidelines, delivering safe, high-quality water through coagulation, filtration, disinfection, and fluoridation at plants like Wurdi Youang.