Kingsford Water Hardness & Quality Report (2026)
Water Hardness
Source
reservoir
pH Level
7.5
neutral = 7.0
Lead
0.002 mg/L
✓ Below action level
TDS
157.2 mg/L
Est. Daily Cost
A$0.26
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 Kingsford, your appliances are currently losing 11% efficiency due to mineral buildup.
| Appliance | In Kingsford | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.8 yrs | 8.5 yrs | -20% |
| Washing Machine | 10.5 yrs | 12 yrs | -13% |
| Water Heater | 12.3 yrs | 15 yrs | -18% |
Regional Water Comparison
How Kingsford compares to its nearest neighbours
| City | Hardness | Risk | Source |
|---|---|---|---|
| ▶ Kingsford, New South Wales | 83.5 mg/L | 🟡 Moderately Hard | reservoir |
| Kensington, New South Wales | 195 mg/L | 🔴 Very Hard | reservoir |
| Randwick, New South Wales | 31.5 mg/L | 🟢 Soft | reservoir |
| Zetland, New South Wales | 168 mg/L | 🟠 Hard | reservoir |
| Maroubra, New South Wales | 169 mg/L | 🟠 Hard | reservoir |
National Benchmark
How Kingsford compares to the Australia average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Kingsford | 83.5 mg/L | 🟡 Low |
| Australia National Avg | 125 mg/L | 🟠 Moderate |
| Boronia Top Rated | 5 mg/L | 🟢 None |
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What Makes Kingsford's Water Unique?
Local geology and source profile
Kingsford's drinking water is supplied by Sydney Water, treated at the Prospect Water Filtration Plant blending Warragamba Dam with a moderate Hawkesbury-Nepean component for the Randwick LGA eastern Sydney distribution in New South Wales. Water hardness in Kingsford is measured at 83.5 mg/L — classified as slightly hard — within the Australian Drinking Water Guidelines (ADWG) aesthetic guideline of 200 mg/L published by NHMRC. Kingsford — the thriving eastern Sydney suburb at the gateway to the University of New South Wales, famous for the Anzac Parade dining strip of Vietnamese, Chinese, and Korean restaurants, and adjacent to the Kensington residential heritage precinct — receives supply with a moderate Hawkesbury-Nepean contribution, softer than the adjacent Coogee sub-zone (109 mg/L) in the same Randwick LGA.
Kingsford's slightly elevated hardness reflects a moderate Hawkesbury-Nepean component in the eastern Sydney Randwick Prospect distribution blend. The Hawkesbury-Nepean system traverses Cumberland Plain alluvial terrain and Triassic carbonate-cemented sedimentary deposits — dissolving moderate calcium bicarbonate before Prospect treatment. The Kingsford Randwick eastern distribution sub-zone at 83.5 mg/L and TDS 157.2 mg/L receives a proportionally moderate Hawkesbury-Nepean fraction, positioned between the standard soft inner eastern Sydney zones and the harder Randwick coastal sub-zones.
Kingsford residents can expect moderate limescale build-up 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 (0.002 mg/L) is reassuring. Sydney Water provides water quality information at sydneywater.com.au, with all ADWG health standards consistently met. The Anzac Parade restaurant and café community benefits from water quality meeting all safe drinking standards, and the UNSW campus community is served by a supply well within ADWG health and aesthetic thresholds.
Geology & Source: Supplied by Sydney Water via the Prospect Water Filtration Plant blending Warragamba Dam with a moderate Hawkesbury-Nepean component — the Kingsford Randwick LGA eastern Sydney supply carries slightly hard water at 83.5 mg/L, consistent with the moderate Hawkesbury-Nepean proportion at the eastern Sydney Randwick distribution corridor.