Roxburgh Park Water Hardness & Quality Report (2026)

Roxburgh Park's drinking water is supplied by City West Water as water retailer, with bulk supply from Melbourne Water drawn from the Thomson Reservoir and Upper Yarra Reservoir catchments in the Yarra Ranges, Victoria. Water hardness in Roxburgh Park is measured at 60.5 mg/L — classified as soft — within the Australian Drinking Water Guidelines (ADWG) aesthetic guideline of 200 mg/L published by NHMRC. Roxburgh Park, in the Hume LGA of Melbourne's outer northern growth corridor adjacent to Craigieburn, receives Melbourne Water's Yarra Ranges supply through City West Water's northern metropolitan distribution network, with modest hardness slightly above the CBD reflecting the outer northern distribution pathway.

Roxburgh Park's slightly elevated hardness relative to the Melbourne CBD (41.5 mg/L) reflects the northern outer distribution pipeline characteristics. The supply originates from Melbourne Water's Devonian granite Yarra Ranges catchments, producing soft base supply, but the extended northern pipeline route through the Hume LGA outer corridor picks up modest additional mineral content along the distribution infrastructure. City West Water's northern outer distribution network shows consistent softness in the outer Hume suburbs, with Roxburgh Park's 60.5 mg/L representative of this gently elevated outer northern Melbourne supply characteristic.

Roxburgh Park residents experience minimal limescale accumulation on taps, in kettles, and around shower fittings — descaling every two to three months is generally adequate. Hot water systems accumulate minimal scale throughout their service life. The elevated lead reading (0.003 mg/L) warrants briefly running the cold tap before use in older established homes. City West Water provides water quality information at citywestwater.com.au, with all ADWG health standards consistently met throughout the Hume outer northern supply zone.