Clyde Water Hardness & Quality Report (2026)
Water Hardness
Source
reservoir
pH Level
7.6
neutral = 7.0
Lead
0.004 mg/L
✓ Below action level
TDS
188.9 mg/L
Est. Daily Cost
A$0.28
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 Clyde, your appliances are currently losing 12% efficiency due to mineral buildup.
| Appliance | In Clyde | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.7 yrs | 8.5 yrs | -21% |
| Washing Machine | 10.4 yrs | 12 yrs | -13% |
| Water Heater | 12.1 yrs | 15 yrs | -19% |
Regional Water Comparison
How Clyde compares to its nearest neighbours
| City | Hardness | Risk | Source |
|---|---|---|---|
| ▶ Clyde, Victoria | 87 mg/L | 🟡 Moderately Hard | reservoir |
| Cranbourne East, Victoria | 17.5 mg/L | 🟢 Soft | reservoir |
| Cranbourne, Victoria | 34.5 mg/L | 🟢 Soft | reservoir |
| Cranbourne North, Victoria | 17.5 mg/L | 🟢 Soft | reservoir |
| Cranbourne West, Victoria | 17.5 mg/L | 🟢 Soft | reservoir |
National Benchmark
How Clyde compares to the Australia average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Clyde | 87 mg/L | 🟡 Low |
| Australia National Avg | 125 mg/L | 🟠 Moderate |
| Boronia Top Rated | 5 mg/L | 🟢 None |
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What Makes Clyde's Water Unique?
Local geology and source profile
Clyde's drinking water is supplied by South East Water as water retailer, with bulk supply from Melbourne Water incorporating a low-to-moderate Winneke Water Treatment Plant contribution for the Casey City Council LGA outer south-eastern Melbourne growth area distribution in Victoria. Water hardness in Clyde is measured at 87 mg/L — classified as slightly hard — within the Australian Drinking Water Guidelines (ADWG) aesthetic guideline of 200 mg/L published by NHMRC. Clyde, in the Casey City LGA — one of the fastest-growing outer south-eastern Melbourne growth area suburbs, situated on the Cranbourne growth frontier of the Casey–Cardinia growth corridor, known for the rapidly developing Clyde North master-planned community, the Casey North regional sporting, retail, and community hubs, and the outer south-eastern Melbourne greenfield residential estates adjacent to the Western Port Bay hinterland — receives slightly elevated supply consistent with the South East Water outer south-eastern Casey distribution.
Clyde's slightly elevated hardness reflects a low-to-moderate Winneke Water Treatment Plant contribution at the outer south-eastern Casey City growth corridor sub-zone. The Winneke WTP draws from the Yarra River at Yering Gorge traversing Devonian basalt terrain — contributing moderate calcium. At 87 mg/L and TDS 188.9 mg/L, the Clyde Casey outer growth distribution is slightly less hard than the Hallam Casey sub-zone (111.5 mg/L) in the same LGA, reflecting a lower Winneke proportion at the more distant outer south-eastern growth corridor distribution sub-zone.
Clyde residents can expect 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 (0.004 mg/L) warrants briefly running the cold tap before use. South East Water provides water quality information at southeastwater.com.au, with all ADWG health standards consistently met. Clyde's outer south-eastern Melbourne growth community and the Casey–Cardinia corridor benefit from a safe supply meeting all ADWG standards.
Geology & Source: Supplied by South East Water (water retailer) and Melbourne Water (wholesale) incorporating a low-to-moderate Winneke Water Treatment Plant contribution — the Clyde Casey City outer south-eastern Melbourne growth area supply carries slightly hard water at 87 mg/L with TDS of 188.9 mg/L, reflecting the moderate Winneke WTP proportion in the outer south-eastern Casey City South East Water growth corridor sub-zone.