Fairfield West Water Hardness & Quality Report (2026)
Water Hardness
Source
reservoir
pH Level
7.6
neutral = 7.0
Lead
0.003 mg/L
✓ Below action level
TDS
213.8 mg/L
Est. Daily Cost
A$0.34
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 Fairfield West, your appliances are currently losing 14% efficiency due to mineral buildup.
| Appliance | In Fairfield West | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.1 yrs | 8.5 yrs | -28% |
| Washing Machine | 9.6 yrs | 12 yrs | -20% |
| Water Heater | 11.3 yrs | 15 yrs | -25% |
Regional Water Comparison
How Fairfield West compares to its nearest neighbours
| City | Hardness | Risk | Source |
|---|---|---|---|
| ▶ Fairfield West, New South Wales | 107.5 mg/L | 🟡 Moderately Hard | reservoir |
| Canley Heights, New South Wales | 147 mg/L | 🟠 Hard | reservoir |
| Smithfield, New South Wales | 54.5 mg/L | 🟢 Soft | reservoir |
| Fairfield, New South Wales | 28 mg/L | 🟢 Soft | reservoir |
| Bossley Park, New South Wales | 95.5 mg/L | 🟡 Moderately Hard | reservoir |
National Benchmark
How Fairfield West compares to the Australia average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Fairfield West | 107.5 mg/L | 🟡 Low |
| Australia National Avg | 125 mg/L | 🟠 Moderate |
| Boronia Top Rated | 5 mg/L | 🟢 None |
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What Makes Fairfield West's Water Unique?
Local geology and source profile
Fairfield West's drinking water is supplied by Sydney Water, treated at the Prospect Water Filtration Plant with a moderate Hawkesbury-Nepean component for the Fairfield City LGA outer western Sydney distribution in New South Wales. Water hardness in Fairfield West is measured at 107.5 mg/L — classified as slightly hard — within the Australian Drinking Water Guidelines (ADWG) aesthetic guideline of 200 mg/L published by NHMRC. Fairfield West — a residential suburb in the outer western Sydney Fairfield City LGA adjacent to Fairfield town centre, known for the Fairfield West residential community on the Cumberland Plain, the diverse multicultural residential character of the Fairfield City corridor, and the western Sydney community services precinct — receives slightly elevated supply harder than the soft Smithfield sub-zone (54.5 mg/L) in the same Fairfield City LGA, reflecting a higher Hawkesbury-Nepean proportion at the Fairfield West Prospect distribution sub-zone.
Fairfield West's slightly elevated hardness reflects a moderate Hawkesbury-Nepean component in the outer western Fairfield Prospect distribution blend at this sub-zone. The Hawkesbury-Nepean system traverses Cumberland Plain alluvial terrain and Triassic carbonate-cemented Hawkesbury Sandstone deposits contributing moderate dissolved calcium before Prospect treatment. The Fairfield West outer western Sydney distribution at 107.5 mg/L and TDS 213.8 mg/L contrasts with the soft Smithfield sub-zone (54.5 mg/L) in the same Fairfield LGA, confirming the marked supply blend variation within the Fairfield City LGA distribution network.
Fairfield West 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 low lead reading (0.003 mg/L) is good. Sydney Water provides water quality information at sydneywater.com.au, with all ADWG health standards consistently met. Fairfield West's outer western Sydney multicultural residential community benefits from a safe supply meeting all ADWG standards.
Geology & Source: Supplied by Sydney Water via the Prospect Water Filtration Plant with a moderate Hawkesbury-Nepean component — the Fairfield West Fairfield City outer western Sydney supply carries slightly hard water at 107.5 mg/L with TDS of 213.8 mg/L, harder than the Smithfield Fairfield sub-zone (54.5 mg/L) in the same Fairfield LGA, reflecting a higher Hawkesbury-Nepean proportion in the Fairfield West distribution sub-zone.