Rhodes Water Hardness & Quality Report (2026)

Rhodes' drinking water is supplied by Sydney Water, treated at the Prospect Water Filtration Plant drawing predominantly from Warragamba Dam (Nepean River system) for the Canada Bay LGA inner western Sydney distribution in New South Wales. Water hardness in Rhodes is measured at 42.5 mg/L — classified as soft — well below the Australian Drinking Water Guidelines (ADWG) aesthetic guideline of 200 mg/L published by NHMRC. Rhodes — a rapidly transformed inner western Sydney suburb on the Rhodes Peninsula at the confluence of the Parramatta River and Duck River, known for the Rhodes Waterside shopping complex, the Rhodes station transit-oriented high-density apartment development precinct, the former industrial and chemical manufacturing site now remediated into a vibrant inner western Sydney mixed-use community, and the Parramatta River waterfront lifestyle — receives predominantly soft supply, dramatically softer than the adjacent Drummoyne sub-zone (176.5 mg/L) in the same Canada Bay LGA, confirming extreme supply blend variation within the LGA.

Rhodes' soft supply reflects a predominantly Warragamba Dam contribution with minimal Hawkesbury-Nepean blending at the Rhodes Peninsula Canada Bay Prospect distribution sub-zone. Warragamba Dam collects rainfall from the Blue Mountains sandstone plateau and Kanangra–Boyd granite uplands — chemically resistant terrain contributing negligible dissolved minerals — producing soft supply at 42.5 mg/L and TDS 72.3 mg/L. This contrasts dramatically with the very hard Drummoyne sub-zone (176.5 mg/L, TDS 405.1 mg/L) in the same Canada Bay LGA, confirming completely different distribution main supply routings across the Canada Bay LGA network.

Rhodes residents enjoy low limescale accumulation on taps and in kettles — descaling every two to three months is typically adequate. Hot water systems accumulate minimal scale. The low lead reading (0.002 mg/L) is excellent. Sydney Water provides water quality information at sydneywater.com.au, with all ADWG health standards consistently met. Rhodes' Parramatta River peninsula community and the Rhodes transit precinct benefit from this soft, clean supply meeting all ADWG standards.