Elwood Water Hardness & Quality Report (2026)
Water Hardness
Source
reservoir
pH Level
7.5
neutral = 7.0
Lead
0.003 mg/L
✓ Below action level
TDS
137.4 mg/L
Est. Daily Cost
A$0.21
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 Elwood, your appliances are currently losing 9% efficiency due to mineral buildup.
| Appliance | In Elwood | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 7.4 yrs | 8.5 yrs | -13% |
| Washing Machine | 11.1 yrs | 12 yrs | -8% |
| Water Heater | 12.9 yrs | 15 yrs | -14% |
Regional Water Comparison
How Elwood compares to its nearest neighbours
| City | Hardness | Risk | Source |
|---|---|---|---|
| ▶ Elwood, Victoria | 67.5 mg/L | 🟡 Moderately Hard | reservoir |
| Saint Kilda, Victoria | 89 mg/L | 🟡 Moderately Hard | reservoir |
| Elsternwick, Victoria | 32 mg/L | 🟢 Soft | reservoir |
| St Kilda East, Victoria | 77.5 mg/L | 🟡 Moderately Hard | reservoir |
| Brighton, Victoria | 96 mg/L | 🟡 Moderately Hard | reservoir |
National Benchmark
How Elwood compares to the Australia average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Elwood | 67.5 mg/L | 🟡 Low |
| Australia National Avg | 125 mg/L | 🟠 Moderate |
| Boronia Top Rated | 5 mg/L | 🟢 None |
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What Makes Elwood's Water Unique?
Local geology and source profile
Elwood's drinking water is supplied by South East Water as water retailer, with bulk supply from Melbourne Water incorporating a moderate Winneke Water Treatment Plant contribution for the City of Port Phillip LGA inner southern Melbourne coastal distribution in Victoria. Water hardness in Elwood is measured at 67.5 mg/L — classified as slightly hard — within the Australian Drinking Water Guidelines (ADWG) aesthetic guideline of 200 mg/L published by NHMRC. Elwood, in the Port Phillip LGA — a charming inner southern Melbourne beachside suburb adjacent to St Kilda, known for the Elwood Canal bicycle path, the Elwood Beach foreshore, the Brighton Road café strip, and the popular Elwood Farmers Market — receives a slightly elevated supply reflecting a moderate Winneke WTP blend at this inner southern coastal Melbourne distribution sub-zone.
Elwood's slightly elevated hardness reflects a moderate Winneke Water Treatment Plant blending proportion at the inner southern Port Phillip coastal distribution sub-zone. The Winneke plant draws from the Yarra River at Yering Gorge traversing Devonian basalt terrain — contributing moderate calcium relative to the soft Yarra Ranges granite reservoir supply. The Elwood inner southern Port Phillip coastal distribution at 67.5 mg/L and TDS 137.4 mg/L reflects the typical slightly elevated Winneke WTP blending across South East Water's inner southern Melbourne coastal supply network, broader than the near-pure soft supply of the inner northern City of Melbourne zones.
Elwood 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 (0.003 mg/L) warrants briefly running the cold tap before use in Elwood's many period interwar homes and heritage beachside apartments. South East Water provides water quality information at southeastwater.com.au, with all ADWG health standards consistently met. The supply is well within ADWG thresholds for Elwood's active beach lifestyle community.
Geology & Source: Supplied by South East Water (water retailer) and Melbourne Water (wholesale) incorporating a moderate Winneke Water Treatment Plant contribution — the Elwood Port Phillip inner south coastal supply carries slightly hard water at 67.5 mg/L, consistent with a moderate Winneke WTP proportion at this inner southern Port Phillip Melbourne coastal distribution sub-zone.