Wallsend 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
217.6 mg/L
Est. Daily Cost
A$0.35
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 Wallsend, your appliances are currently losing 15% efficiency due to mineral buildup.
| Appliance | In Wallsend | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6 yrs | 8.5 yrs | -29% |
| Washing Machine | 9.6 yrs | 12 yrs | -20% |
| Water Heater | 11.2 yrs | 15 yrs | -25% |
Regional Water Comparison
How Wallsend compares to its nearest neighbours
| City | Hardness | Risk | Source |
|---|---|---|---|
| ▶ Wallsend, New South Wales | 109 mg/L | 🟡 Moderately Hard | reservoir |
| New Lambton, New South Wales | 26 mg/L | 🟢 Soft | reservoir |
| Charlestown, New South Wales | 183.5 mg/L | 🔴 Very Hard | reservoir |
| Merewether, New South Wales | 119.5 mg/L | 🟡 Moderately Hard | reservoir |
| Newcastle, New South Wales | 48 mg/L | 🟢 Soft | reservoir |
National Benchmark
How Wallsend compares to the Australia average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Wallsend | 109 mg/L | 🟡 Low |
| Australia National Avg | 125 mg/L | 🟠 Moderate |
| Boronia Top Rated | 5 mg/L | 🟢 None |
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What Makes Wallsend's Water Unique?
Local geology and source profile
Wallsend's drinking water is supplied by Hunter Water, drawing from the Chichester Dam (Allyn River, Barrington Tops catchment) and Grahamstown Dam (Williams River) for the City of Newcastle LGA inner western distribution in New South Wales. Water hardness in Wallsend is measured at 109 mg/L — classified as slightly hard — within the Australian Drinking Water Guidelines (ADWG) aesthetic guideline of 200 mg/L published by NHMRC. Wallsend — a large inner western Newcastle suburb with deep coal-mining heritage, birthplace of former Australian Prime Minister John Curtin, known for the Wallsend Town Centre, the Newcastle Entertainment Centre precinct, the historic Wallsend Diggers community club, and the working-class residential character of the inner western Newcastle LGA — receives slightly elevated supply from the Hunter Water Newcastle distribution blend.
Wallsend's slightly elevated hardness reflects a moderate blending of Chichester Dam and Grahamstown Dam supply in the Hunter Water Newcastle LGA western distribution. The Chichester Dam on the Allyn River drains the Barrington Tops National Park — chemically resistant Permian volcanic and igneous terrain — contributing soft water. The Grahamstown Dam on the Williams River drains sandstone and alluvial terrain contributing slightly more mineralised water. The Wallsend inner western Newcastle distribution at 109 mg/L and TDS 217.6 mg/L reflects a moderate blend of these two Hunter Water sources, harder than the Port Stephens Raymond Terrace sub-zone (66.5 mg/L).
Wallsend 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. Hunter Water provides water quality information at hunterwater.com.au, with all ADWG health standards consistently met. Wallsend's inner western Newcastle residential community and the John Curtin heritage precinct benefit from a safe supply meeting all ADWG standards.
Geology & Source: Supplied by Hunter Water from the Chichester Dam and Grahamstown Dam catchments — the Wallsend Newcastle LGA inner western Newcastle supply carries slightly hard water at 109 mg/L with TDS of 217.6 mg/L, reflecting a moderate blending of the Barrington Tops Chichester catchment and Grahamstown reservoir supply in the Hunter Water distribution for the Newcastle LGA inner western suburbs.