Sunshine North Water Hardness & Quality Report (2026)

Sunshine North's drinking water is supplied by City West Water as water retailer, with bulk supply from Melbourne Water drawing predominantly from the Thomson Reservoir and Upper Yarra Reservoir direct catchment supply with a near-zero Winneke Water Treatment Plant contribution for the City of Brimbank LGA outer western Melbourne distribution in Victoria. Water hardness in Sunshine North is measured at 20.5 mg/L — classified as very soft — far below the Australian Drinking Water Guidelines (ADWG) aesthetic guideline of 200 mg/L published by NHMRC. Sunshine North, in the Brimbank City LGA — a diverse outer western Melbourne suburb adjacent to the Sunshine industrial and commercial precinct, known for the Sunshine North residential community, the Brimbank Park and Steele Creek Corridor reserve, the large multicultural community of the Brimbank western Melbourne growth corridor, and the Deer Park–Sunshine transport interchange — receives one of the softest urban water supplies in the entire Australian dataset.

Sunshine North's extraordinary softness reflects near-pure Thomson Reservoir and Upper Yarra catchment supply delivered through City West Water's outer western Brimbank distribution with essentially zero Winneke blending at this sub-zone. The Thomson and Upper Yarra storages drain exclusively Devonian granite and rhyodacite — the most chemically resistant igneous rock — in protected wilderness catchments, contributing essentially zero dissolved minerals. At 20.5 mg/L and TDS 35 mg/L, the Sunshine North outer western Brimbank distribution sub-zone receives near-pure chemically inert water, one of the softest urban water supplies measured in metropolitan Australia.

Sunshine North residents experience essentially no limescale accumulation on taps, in kettles, or around shower fittings — scale build-up is negligible. Hot water systems maintain excellent element life with minimal scale. The low lead reading (0.002 mg/L) is excellent. City West Water provides water quality information at citywestwater.com.au, with all ADWG health standards consistently met. Sunshine North's outer western Brimbank community and the Brimbank Park precinct benefit from this remarkably soft, pure water supply meeting all ADWG standards.