Broken Hill Water Hardness & Quality Report (2026)
Water Hardness
Source
reservoir
pH Level
7.9
neutral = 7.0
Lead
0.004 mg/L
✓ Below action level
TDS
336.7 mg/L
Est. Daily Cost
A$0.49
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 Broken Hill, your appliances are currently losing 20% efficiency due to mineral buildup.
| Appliance | In Broken Hill | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 4.5 yrs | 8.5 yrs | -47% |
| Washing Machine | 7.9 yrs | 12 yrs | -34% |
| Water Heater | 9.5 yrs | 15 yrs | -37% |
Regional Water Comparison
How Broken Hill compares to its nearest neighbours
| City | Hardness | Risk | Source |
|---|---|---|---|
| ▶ Broken Hill, New South Wales | 153.5 mg/L | 🟠 Hard | reservoir |
| Mildura, Victoria | 57.5 mg/L | 🟢 Soft | reservoir |
| Port Pirie, South Australia | 292 mg/L | 🔴 Very Hard | mixed |
| Port Augusta, South Australia | 294.5 mg/L | 🔴 Very Hard | mixed |
| Gawler, South Australia | 320 mg/L | 🔴 Very Hard | mixed |
National Benchmark
How Broken Hill compares to the Australia average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Broken Hill | 153.5 mg/L | 🟠 Moderate |
| Australia National Avg | 125 mg/L | 🟠 Moderate |
| Boronia Top Rated | 5 mg/L | 🟢 None |
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What Makes Broken Hill's Water Unique?
Local geology and source profile
Broken Hill's drinking water is supplied by Essential Water (a business unit of the NSW Department of Planning and Environment), drawing from Menindee Lakes — the Darling River impoundment system on the far western NSW plains — via a 105-kilometre supply pipeline to this iconic outback mining city in New South Wales. Water hardness in Broken Hill is measured at 153.5 mg/L — classified as moderately hard — within the Australian Drinking Water Guidelines (ADWG) aesthetic guideline of 200 mg/L published by NHMRC. Broken Hill — Australia's most celebrated outback mining city and a living museum of mining heritage, Arts and Crafts architecture, and the extraordinary Red Earth landscape of the Barrier Ranges — receives supply reflecting the dissolved mineral character of the far western NSW Darling River system.
Broken Hill's moderately hard supply reflects the dissolved mineral accumulation of the Darling River far western plains system at Menindee. The Darling River traverses the semi-arid far western NSW plains — draining across Cambrian–Devonian sedimentary sequences, alluvial plains, and the sulphide-rich terrain of the Broken Hill Domain — accumulating calcium, magnesium, and sodium salts from shallow evaporative soils and sedimentary contact along its extensive inland catchment. The relatively long supply pipeline from Menindee adds further mineral pick-up at 153.5 mg/L and TDS 336.7 mg/L, consistent with far western NSW inland river supply chemistry.
Broken Hill residents face moderate limescale build-up on taps and in kettles — descaling every three to four weeks is typical in this semi-arid outback environment where high temperatures accelerate scale formation. Hot water systems benefit from annual inspection. Essential Water provides water quality information online, with all ADWG health standards consistently met. Water efficiency is particularly important in Broken Hill given the city's remote water supply infrastructure and the importance of water conservation in Australia's driest outback city.
Geology & Source: Supplied by Essential Water from Menindee Lakes (Darling River impoundment) via a 105-kilometre pipeline across the far western New South Wales outback plains — the Broken Hill supply carries moderately hard water at 153.5 mg/L with TDS of 336.7 mg/L, reflecting dissolved minerals accumulated by the Darling River traversing the semi-arid far western NSW plains and Cambrian–Devonian outback sedimentary basin.