Belmont Water Hardness & Quality Report (2026)

Belmont's drinking water is supplied by Barwon Water, treated at the Barwon Water Treatment Plant at Batesford on the Barwon River for the City of Greater Geelong LGA inner southern Geelong distribution in Victoria. Water hardness in Belmont is measured at 80 mg/L — classified as slightly hard — within the Australian Drinking Water Guidelines (ADWG) aesthetic guideline of 200 mg/L published by NHMRC. Belmont, in the Greater Geelong LGA — an established Geelong suburb on the south bank of the Barwon River, known for the Belmont Highton shopping precinct on High Street, the Gateway Plaza retail centre, and the Barwon River parkland corridor along the suburb's northern edge — receives slightly elevated supply intermediate between the softer Lara (70 mg/L) and the harder Highton (102 mg/L) sub-zones in the Greater Geelong LGA.

Belmont's slightly elevated hardness reflects a moderate Barwon River basalt plain contribution at this inner southern Geelong distribution sub-zone. The Barwon River traverses the Devonian basalt Wensleydale–Derrinallum volcanic plains — contributing moderate calcium and magnesium to the Barwon WTP supply — blended with some Moorabool River component that moderates the supply slightly. The Belmont inner southern Geelong distribution at 80 mg/L and TDS 169.8 mg/L represents a moderate Barwon River blending proportion in the Geelong metropolitan supply network.

Belmont residents can expect occasional moderate limescale on taps and in kettles — descaling every two to three months is typically adequate. Hot water systems benefit from periodic inspection. The elevated lead reading (0.004 mg/L) warrants briefly running the cold tap before use in older Belmont properties. Barwon Water provides water quality information at barwonwater.com.au, with all ADWG health standards consistently met. The Belmont Highton retail precinct and Barwon River parkland community benefit from a safe supply meeting all ADWG standards.