Concord Water Hardness & Quality Report (2026)
Water Hardness
Source
reservoir
pH Level
7.7
neutral = 7.0
Lead
0.003 mg/L
✓ Below action level
TDS
245.4 mg/L
Est. Daily Cost
A$0.38
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 Concord, your appliances are currently losing 16% efficiency due to mineral buildup.
| Appliance | In Concord | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 5.6 yrs | 8.5 yrs | -34% |
| Washing Machine | 9.2 yrs | 12 yrs | -23% |
| Water Heater | 10.8 yrs | 15 yrs | -28% |
Regional Water Comparison
How Concord compares to its nearest neighbours
| City | Hardness | Risk | Source |
|---|---|---|---|
| ▶ Concord, New South Wales | 120 mg/L | 🟠 Hard | reservoir |
| Rhodes, New South Wales | 42.5 mg/L | 🟢 Soft | reservoir |
| Ryde, New South Wales | 159 mg/L | 🟠 Hard | reservoir |
| Gladesville, New South Wales | 32 mg/L | 🟢 Soft | reservoir |
| Burwood, New South Wales | 89.5 mg/L | 🟡 Moderately Hard | reservoir |
National Benchmark
How Concord compares to the Australia average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Concord | 120 mg/L | 🟠 Moderate |
| Australia National Avg | 125 mg/L | 🟠 Moderate |
| Boronia Top Rated | 5 mg/L | 🟢 None |
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What Makes Concord's Water Unique?
Local geology and source profile
Concord's drinking water is supplied by Sydney Water, treated at the Prospect Water Filtration Plant with a significant Hawkesbury-Nepean component for the Canada Bay LGA inner western Sydney distribution in New South Wales. Water hardness in Concord is measured at 120 mg/L — classified as moderately hard — within the Australian Drinking Water Guidelines (ADWG) aesthetic guideline of 200 mg/L published by NHMRC. Concord — a prestigious inner western Sydney suburb in the Canada Bay LGA, known for the Concord Golf Club, the Concord Repatriation Hospital, the Brays Bay and Majors Bay waterfront reserves, and the Federation-era and interwar residential heritage precinct on the Parramatta River bend — receives supply with a notable Hawkesbury-Nepean component, consistent with the Inner West and Canada Bay LGA harder supply corridor.
Concord's moderately elevated hardness reflects the significant Hawkesbury-Nepean component in the Canada Bay inner western Prospect distribution blend. The Hawkesbury-Nepean system traverses Cumberland Plain alluvial terrain and Triassic carbonate-cemented sedimentary deposits — dissolving substantial calcium bicarbonate before Prospect treatment. The Concord Canada Bay inner western distribution sub-zone at 120 mg/L and TDS 245.4 mg/L is consistent with the adjacent Inner West LGA supply corridor (Newtown 121 mg/L, Leichhardt 110 mg/L), confirming the elevated Hawkesbury-Nepean proportion across the inner western Sydney supply zone.
Concord residents face 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 elevated lead reading (0.003 mg/L) warrants briefly running the cold tap before use in older Concord heritage homes. Sydney Water provides water quality information at sydneywater.com.au, with all ADWG health standards consistently met. Concord's waterfront residential community and the Concord Repatriation Hospital precinct benefit from a safe and reliable supply.
Geology & Source: Supplied by Sydney Water via the Prospect Water Filtration Plant with a significant Hawkesbury-Nepean component — the Concord Canada Bay LGA inner Sydney supply carries moderately hard water at 120 mg/L with TDS of 245.4 mg/L, reflecting the elevated Hawkesbury-Nepean proportion in the Canada Bay inner western Sydney supply corridor.