Smithfield Water Hardness & Quality Report (2026)
Water Hardness
Source
reservoir
pH Level
7.3
neutral = 7.0
Lead
0.002 mg/L
✓ Below action level
TDS
95.6 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 Smithfield, your appliances are currently losing 7% efficiency due to mineral buildup.
| Appliance | In Smithfield | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 7.8 yrs | 8.5 yrs | -8% |
| Washing Machine | 11.6 yrs | 12 yrs | -3% |
| Water Heater | 13.4 yrs | 15 yrs | -11% |
Regional Water Comparison
How Smithfield compares to its nearest neighbours
| City | Hardness | Risk | Source |
|---|---|---|---|
| ▶ Smithfield, New South Wales | 54.5 mg/L | 🟢 Soft | reservoir |
| Fairfield West, New South Wales | 107.5 mg/L | 🟡 Moderately Hard | reservoir |
| Fairfield, New South Wales | 28 mg/L | 🟢 Soft | reservoir |
| Greystanes, New South Wales | 155 mg/L | 🟠 Hard | reservoir |
| Canley Heights, New South Wales | 147 mg/L | 🟠 Hard | reservoir |
National Benchmark
How Smithfield compares to the Australia average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Smithfield | 54.5 mg/L | 🟢 None |
| Australia National Avg | 125 mg/L | 🟠 Moderate |
| Boronia Top Rated | 5 mg/L | 🟢 None |
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What Makes Smithfield's Water Unique?
Local geology and source profile
Smithfield's drinking water is supplied by Sydney Water, treated at the Prospect Water Filtration Plant drawing predominantly from Warragamba Dam (Nepean River system) for the Fairfield City LGA outer western Sydney distribution in New South Wales. Water hardness in Smithfield is measured at 54.5 mg/L — classified as soft — well below the Australian Drinking Water Guidelines (ADWG) aesthetic guideline of 200 mg/L published by NHMRC. Smithfield — a large residential suburb in the outer western Sydney Fairfield City LGA adjacent to Wetherill Park and Prairiewood, known for the Smithfield industrial and commercial estate precinct, the Green Valley and Fairfield City suburban community, and the diverse multicultural residential character of this outer western Sydney corridor — receives predominantly soft supply from the Prospect Water Filtration Plant distribution.
Smithfield's soft supply reflects a predominantly Warragamba Dam contribution with minimal Hawkesbury-Nepean blending at the outer western Fairfield City Prospect distribution sub-zone. Warragamba Dam collects rainfall from the Blue Mountains sandstone plateau and Kanangra–Boyd granite uplands — chemically resistant terrain contributing negligible dissolved minerals. The Smithfield Fairfield outer western Sydney distribution at 54.5 mg/L and TDS 95.6 mg/L reflects the predominantly soft Warragamba-dominant character of the outer western Sydney Fairfield City supply corridor, consistent with soft outer western Sydney sub-zones in the same distribution zone.
Smithfield residents enjoy low to moderate limescale accumulation on taps and in kettles — descaling every two to three months is typically adequate. Hot water systems accumulate minimal scale. The low lead reading (0.002 mg/L) is excellent. Sydney Water provides water quality information at sydneywater.com.au, with all ADWG health standards consistently met. Smithfield's outer western Sydney multicultural community and the Wetherill Park industrial corridor benefit from this soft supply meeting all ADWG standards.
Geology & Source: Supplied by Sydney Water via the Prospect Water Filtration Plant drawing predominantly from Warragamba Dam — the Smithfield Fairfield outer western Sydney supply carries soft water at 54.5 mg/L with low TDS of 95.6 mg/L, reflecting a predominantly Warragamba-dominant supply with minimal Hawkesbury-Nepean component in the outer western Fairfield City LGA distribution.