Wiley Park Water Hardness & Quality Report (2026)
Water Hardness
Source
reservoir
pH Level
8
neutral = 7.0
Lead
0.004 mg/L
✓ Below action level
TDS
394.5 mg/L
Est. Daily Cost
A$0.55
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 Wiley Park, your appliances are currently losing 23% efficiency due to mineral buildup.
| Appliance | In Wiley Park | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 3.9 yrs | 8.5 yrs | -54% |
| Washing Machine | 7.2 yrs | 12 yrs | -40% |
| Water Heater | 8.7 yrs | 15 yrs | -42% |
Regional Water Comparison
How Wiley Park compares to its nearest neighbours
| City | Hardness | Risk | Source |
|---|---|---|---|
| ▶ Wiley Park, New South Wales | 173 mg/L | 🟠 Hard | reservoir |
| Lakemba, New South Wales | 135 mg/L | 🟠 Hard | reservoir |
| Roselands, New South Wales | 90.5 mg/L | 🟡 Moderately Hard | reservoir |
| Punchbowl, New South Wales | 199.5 mg/L | 🔴 Very Hard | reservoir |
| Belmore, New South Wales | 145 mg/L | 🟠 Hard | reservoir |
National Benchmark
How Wiley Park compares to the Australia average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Wiley Park | 173 mg/L | 🟠 Moderate |
| Australia National Avg | 125 mg/L | 🟠 Moderate |
| Boronia Top Rated | 5 mg/L | 🟢 None |
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What Makes Wiley Park's Water Unique?
Local geology and source profile
Wiley Park's drinking water is supplied by Sydney Water, treated at the Prospect Water Filtration Plant with an elevated Hawkesbury-Nepean component for the Canterbury-Bankstown LGA inner southern Sydney distribution in New South Wales. Water hardness in Wiley Park is measured at 173 mg/L — classified as moderately hard — within the Australian Drinking Water Guidelines (ADWG) aesthetic guideline of 200 mg/L published by NHMRC. Wiley Park — a multicultural residential suburb in the Canterbury-Bankstown LGA adjacent to Lakemba and Punchbowl, known for the Wiley Park and Wiley Park Girls High School, the Wiley Park–Lakemba multicultural community on the Bankstown–Canterbury corridor, and the established inner southern Sydney residential precinct of the Canterbury-Bankstown LGA — receives moderately hard supply reflecting the elevated Hawkesbury-Nepean proportion at the inner southern Canterbury-Bankstown Prospect distribution sub-zone.
Wiley Park's moderately hard supply reflects an elevated Hawkesbury-Nepean component in the inner southern Canterbury-Bankstown Prospect distribution blend. The Hawkesbury-Nepean system traverses Cumberland Plain alluvial terrain and Triassic carbonate-cemented Hawkesbury Sandstone deposits contributing elevated dissolved calcium before Prospect treatment. At 173 mg/L and TDS 394.5 mg/L, Wiley Park's moderately hard supply is consistent with the elevated Hawkesbury-Nepean character of the inner southern Sydney Canterbury-Bankstown distribution — comparable to Bellevue Hill (174 mg/L) and the Cremorne/Neutral Bay lower north shore sub-zones (183 mg/L) all driven by elevated Hawkesbury-Nepean fractions.
Wiley Park residents can expect moderate-to-significant limescale on taps and in kettles — descaling every four to six weeks is typical. Hot water systems benefit from regular inspection. The elevated lead reading (0.004 mg/L) warrants briefly running the cold tap before use. Sydney Water provides water quality information at sydneywater.com.au, with all ADWG health standards consistently met. Wiley Park's multicultural inner southern Sydney residential community benefits from supply meeting all ADWG safe drinking standards.
Geology & Source: Supplied by Sydney Water via the Prospect Water Filtration Plant with an elevated Hawkesbury-Nepean component — the Wiley Park Canterbury-Bankstown inner southern Sydney supply carries moderately hard water at 173 mg/L with TDS of 394.5 mg/L, reflecting the elevated Hawkesbury-Nepean proportion in the inner southern Canterbury-Bankstown LGA Wiley Park Prospect distribution sub-zone.