Sydenham 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
151.3 mg/L
Est. Daily Cost
A$0.23
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 Sydenham, your appliances are currently losing 10% efficiency due to mineral buildup.
| Appliance | In Sydenham | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 7.2 yrs | 8.5 yrs | -15% |
| Washing Machine | 10.9 yrs | 12 yrs | -9% |
| Water Heater | 12.7 yrs | 15 yrs | -15% |
Regional Water Comparison
How Sydenham compares to its nearest neighbours
| City | Hardness | Risk | Source |
|---|---|---|---|
| ▶ Sydenham, Victoria | 73 mg/L | 🟡 Moderately Hard | reservoir |
| Taylors Hill, Victoria | 20.5 mg/L | 🟢 Soft | reservoir |
| Taylors Lakes, Victoria | 58.5 mg/L | 🟢 Soft | reservoir |
| Hillside, Victoria | 5.5 mg/L | 🟢 Soft | reservoir |
| Saint Albans, Victoria | 91.5 mg/L | 🟡 Moderately Hard | reservoir |
National Benchmark
How Sydenham compares to the Australia average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Sydenham | 73 mg/L | 🟡 Low |
| Australia National Avg | 125 mg/L | 🟠 Moderate |
| Boronia Top Rated | 5 mg/L | 🟢 None |
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What Makes Sydenham's Water Unique?
Local geology and source profile
Sydenham's drinking water is supplied by City West Water as water retailer, with bulk supply from Melbourne Water incorporating a low-to-moderate Winneke Water Treatment Plant contribution for the Brimbank City Council LGA outer north-western Melbourne distribution in Victoria. Water hardness in Sydenham is measured at 73 mg/L — classified as slightly hard — within the Australian Drinking Water Guidelines (ADWG) aesthetic guideline of 200 mg/L published by NHMRC. Sydenham, in the Brimbank City LGA — a large outer north-western Melbourne suburb adjacent to Keilor and the Calder Freeway growth corridor, known for the Sydenham station Park and Ride terminus on the Sunbury rail line, the Watergardens Town Centre retail precinct, and the rapidly developing outer north-western Melbourne community of the Brimbank–Hume corridor — receives slightly elevated supply consistent with the outer north-western Brimbank City West Water distribution, contrasting with the very soft City West Water inner Melbourne sub-zones.
Sydenham's slightly elevated hardness reflects a low-to-moderate Winneke Water Treatment Plant contribution at the outer north-western Brimbank City West Water distribution sub-zone. The Winneke WTP draws from the Yarra River at Yering Gorge traversing Devonian basalt terrain — contributing moderate calcium. At 73 mg/L and TDS 151.3 mg/L, Sydenham's outer north-western Brimbank distribution reflects a moderate Winneke WTP proportion — harder than the very soft inner City West Water sub-zones (Sunshine North 20.5 mg/L, West Footscray 20.5 mg/L) but consistent with the slightly hard outer western Melbourne City West Water distribution range.
Sydenham residents can expect occasional light limescale on taps and in kettles — descaling every two to three months is typically adequate. Hot water systems benefit from periodic inspection. The low lead reading (0.003 mg/L) is good. City West Water provides water quality information at citywestwater.com.au, with all ADWG health standards consistently met. Sydenham's outer north-western Melbourne Brimbank growth corridor community benefits from a safe supply meeting all ADWG standards.
Geology & Source: Supplied by City West Water (water retailer) and Melbourne Water (wholesale) incorporating a low-moderate Winneke Water Treatment Plant contribution — the Sydenham Brimbank City outer north-western Melbourne supply carries slightly hard water at 73 mg/L with TDS of 151.3 mg/L, reflecting a low-to-moderate Winneke WTP proportion in the outer north-western Brimbank City West Water Sydenham distribution sub-zone.