Elsternwick Water Hardness & Quality Report (2026)
Water Hardness
Source
reservoir
pH Level
7.2
neutral = 7.0
Lead
0.002 mg/L
✓ Below action level
TDS
57.3 mg/L
Est. Daily Cost
A$0.10
energy & soap waste
Source: BOM National Performance Report & ADWG · Updated 2026
0–60
mg/L
Soft
61–120
mg/L
Moderately Hard
121–180
mg/L
Hard
180+
mg/L
Very Hard
Appliance Damage Report
In Elsternwick, your appliances are currently losing 4% efficiency due to mineral buildup.
| Appliance | In Elsternwick | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 8.5 yrs | 8.5 yrs | — |
| Washing Machine | 12.4 yrs | 12 yrs | — |
| Water Heater | 14.3 yrs | 15 yrs | -5% |
Regional Water Comparison
How Elsternwick compares to its nearest neighbours
| City | Hardness | Risk | Source |
|---|---|---|---|
| ▶ Elsternwick, Victoria | 32 mg/L | 🟢 Soft | reservoir |
| Brighton, Victoria | 96 mg/L | 🟡 Moderately Hard | reservoir |
| St Kilda East, Victoria | 77.5 mg/L | 🟡 Moderately Hard | reservoir |
| Elwood, Victoria | 67.5 mg/L | 🟡 Moderately Hard | reservoir |
| Brighton East, Victoria | 68.5 mg/L | 🟡 Moderately Hard | reservoir |
National Benchmark
How Elsternwick compares to the Australia average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Elsternwick | 32 mg/L | 🟢 None |
| Australia National Avg | 125 mg/L | 🟠 Moderate |
| Boronia Top Rated | 5 mg/L | 🟢 None |
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What Makes Elsternwick's Water Unique?
Local geology and source profile
Elsternwick's drinking water is supplied by South East Water as water retailer, with bulk supply from Melbourne Water via predominantly direct Thomson Reservoir and Upper Yarra catchment supply for the Glen Eira City Council LGA inner southern Melbourne distribution in Victoria. Water hardness in Elsternwick is measured at 32 mg/L — classified as soft — well below the Australian Drinking Water Guidelines (ADWG) aesthetic guideline of 200 mg/L published by NHMRC. Elsternwick — a charming inner southern Melbourne suburb in the Glen Eira City LGA adjacent to Caulfield and St Kilda East, known for the Elsternwick Village and Glenhuntly Road Jewish cultural and café precinct, the Royal Brighton Yacht Club on Brighton Beach Road, the Elwood Canal parklands and the Elsternwick Park cricket and football oval, and the heritage residential and cultural character of the inner southern Melbourne corridor — receives soft supply from the predominantly direct reservoir routing at the inner southern Glen Eira City South East Water sub-zone.
Elsternwick's soft supply reflects the predominantly direct Thomson Reservoir and Upper Yarra catchment contribution at the inner southern Glen Eira City South East Water distribution sub-zone, with minimal Winneke WTP blending. The Thomson and Upper Yarra storages drain exclusively Devonian granite and rhyodacite in protected wilderness catchments — contributing negligible dissolved minerals — producing soft supply. At 32 mg/L and TDS 57.3 mg/L, Elsternwick's inner southern Melbourne supply is among the softest in the South East Water distribution, reflecting the predominantly direct soft reservoir supply routing at this inner southern sub-zone.
Elsternwick residents enjoy very 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. South East Water provides water quality information at southeastwater.com.au, with all ADWG health standards consistently met. Elsternwick's inner southern Melbourne cultural community and the Glen Eira City residential corridor benefit from this soft, clean supply meeting all ADWG standards.
Geology & Source: Supplied by South East Water (water retailer) and Melbourne Water (wholesale) via predominantly direct Thomson Reservoir and Upper Yarra catchment supply — the Elsternwick Glen Eira City inner southern Melbourne supply carries soft water at 32 mg/L with very low TDS of 57.3 mg/L, reflecting the predominantly soft direct reservoir supply character of the inner southern Glen Eira City South East Water Elsternwick distribution sub-zone.