Moranbah Water Hardness & Quality Report (2026)
Water Hardness
Source
mixed
pH Level
7.5
neutral = 7.0
Lead
0.002 mg/L
✓ Below action level
TDS
255.3 mg/L
Est. Daily Cost
A$0.34
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 Moranbah, your appliances are currently losing 14% efficiency due to mineral buildup.
| Appliance | In Moranbah | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.1 yrs | 8.5 yrs | -28% |
| Washing Machine | 9.7 yrs | 12 yrs | -19% |
| Water Heater | 11.4 yrs | 15 yrs | -24% |
Regional Water Comparison
How Moranbah compares to its nearest neighbours
| City | Hardness | Risk | Source |
|---|---|---|---|
| ▶ Moranbah, Queensland | 106 mg/L | 🟡 Moderately Hard | mixed |
| Mackay, Queensland | 67.5 mg/L | 🟡 Moderately Hard | mixed |
| Emerald, Queensland | 132.5 mg/L | 🟠 Hard | mixed |
| Bowen, Queensland | 139 mg/L | 🟠 Hard | mixed |
| Gracemere, Queensland | 128 mg/L | 🟠 Hard | mixed |
National Benchmark
How Moranbah compares to the Australia average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Moranbah | 106 mg/L | 🟡 Low |
| Australia National Avg | 125 mg/L | 🟠 Moderate |
| Boronia Top Rated | 5 mg/L | 🟢 None |
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What Makes Moranbah's Water Unique?
Local geology and source profile
Moranbah's drinking water is supplied by the Isaac Regional Council, drawing from local Bowen Basin catchment dams and weirs supplemented by Bowen Basin groundwater bores for the Isaac Regional Council LGA remote Central Queensland mining town in Queensland. Water hardness in Moranbah is measured at 106 mg/L — classified as slightly hard — within the Australian Drinking Water Guidelines (ADWG) aesthetic guideline of 200 mg/L published by NHMRC. Moranbah — a remote Central Queensland company mining town in the Bowen Basin established to service the massive Goonyella and Saraji coal mines, one of Australia's most significant coal mining communities, known for the BMA and Glencore coal operations, the Moranbah sports and recreational facilities, and the fly-in fly-out mining community lifestyle — receives slightly elevated supply from the Bowen Basin catchment system.
Moranbah's slightly elevated hardness reflects the moderately mineralised Bowen Basin Permian-Triassic sedimentary catchment geology of the Isaac Regional Council water supply sources. The Bowen Basin catchments drain Permian coal-bearing sedimentary and Triassic sandstone formations — terrain contributing moderate dissolved calcium and carbonates to the local water supply. The Moranbah Isaac regional mining town distribution at 106 mg/L and TDS 255.3 mg/L reflects the moderately hard character of the Central Queensland Bowen Basin catchment supply, comparable to slightly hard supplies from similar sedimentary terrain in regional Queensland.
Moranbah 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 (0.002 mg/L) is excellent. Isaac Regional Council provides water quality information, with all ADWG health standards consistently met. Moranbah's Bowen Basin coal mining community and the remote Central Queensland township benefit from supply meeting all ADWG safe drinking standards despite the challenges of supplying a remote mining community.
Geology & Source: Supplied by the Isaac Regional Council from local Bowen Basin catchment dams and weirs supplemented by Bowen Basin groundwater — the Moranbah Isaac regional mining town supply carries slightly hard water at 106 mg/L with TDS of 255.3 mg/L, reflecting the moderately mineralised character of the Central Queensland Bowen Basin Permian-Triassic sedimentary catchment geology of the Moranbah regional water supply.