Lilydale Water Hardness & Quality Report (2026)
Water Hardness
Source
reservoir
pH Level
7.4
neutral = 7.0
Lead
0.003 mg/L
✓ Below action level
TDS
103.7 mg/L
Est. Daily Cost
A$0.17
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 Lilydale, your appliances are currently losing 7% efficiency due to mineral buildup.
| Appliance | In Lilydale | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 7.8 yrs | 8.5 yrs | -8% |
| Washing Machine | 11.6 yrs | 12 yrs | -3% |
| Water Heater | 13.5 yrs | 15 yrs | -10% |
Regional Water Comparison
How Lilydale compares to its nearest neighbours
| City | Hardness | Risk | Source |
|---|---|---|---|
| ▶ Lilydale, Victoria | 53.5 mg/L | 🟢 Soft | reservoir |
| Mooroolbark, Victoria | 25.5 mg/L | 🟢 Soft | reservoir |
| Kilsyth, Victoria | 108 mg/L | 🟡 Moderately Hard | reservoir |
| Croydon, Victoria | 25 mg/L | 🟢 Soft | reservoir |
| Ringwood East, Victoria | 14.5 mg/L | 🟢 Soft | reservoir |
National Benchmark
How Lilydale compares to the Australia average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Lilydale | 53.5 mg/L | 🟢 None |
| Australia National Avg | 125 mg/L | 🟠 Moderate |
| Boronia Top Rated | 5 mg/L | 🟢 None |
Bring Boronia-quality water to your Lilydale home
Shop water softeners on Amazon.com →
What Makes Lilydale's Water Unique?
Local geology and source profile
Lilydale's drinking water is supplied by Yarra Valley Water as water retailer, with bulk supply from Melbourne Water drawn from the Maroondah Reservoir and Upper Yarra Reservoir catchments in the Yarra Ranges, Victoria. Water hardness in Lilydale is measured at 53.5 mg/L — classified as soft — within the Australian Drinking Water Guidelines (ADWG) aesthetic guideline of 200 mg/L published by NHMRC. Lilydale — the historic outer eastern gateway township at the foot of the Yarra Ranges, famous for its proximity to the Yarra Valley wine region, Hanging Rock picnic ground, and the Lilydale-to-Warburton Rail Trail — receives supply blending the characteristically soft Yarra Ranges reservoir supply with a moderate Winneke contribution, consistent with the outer eastern Melbourne distribution corridor.
Lilydale's soft supply reflects a predominantly direct Maroondah Reservoir and Upper Yarra supply pathway with a moderate Winneke Water Treatment Plant component at this outer eastern Yarra Ranges corridor. The Maroondah and Upper Yarra storages drain across Devonian granite and rhyodacite — highly resistant igneous terrain contributing negligible dissolved minerals. Lilydale's position near the Yering Gorge Winneke intake introduces a moderate Yarra River contribution at 53.5 mg/L — softer than the inner Winneke-dominant zones (Pascoe Vale 110.5 mg/L) but harder than the near-source reservoir supply sub-zones (Ringwood 15 mg/L).
Lilydale residents enjoy very low limescale accumulation on taps, in kettles, and around shower fittings — descaling is an occasional task. Hot water systems accumulate minimal scale. Yarra Valley Water provides water quality information at yvw.com.au, with all ADWG health standards consistently met. The elevated lead reading (0.003 mg/L) warrants briefly running the cold tap before use in older Lilydale township buildings. The very soft supply benefits Lilydale's community as the outer eastern Melbourne gateway to the Yarra Valley wine and tourism region.
Geology & Source: Supplied by Yarra Valley Water (water retailer) and Melbourne Water (wholesale) from the Maroondah Reservoir and Upper Yarra catchment systems, with potential Winneke WTP influence at the outer eastern distribution node — the Lilydale Yarra Ranges outer east supply carries soft water at 53.5 mg/L, reflecting a moderate blend of Yarra Ranges reservoir and Yering Gorge Winneke supply at this outer eastern corridor.