Port Macquarie 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
222.5 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 Port Macquarie, your appliances are currently losing 15% efficiency due to mineral buildup.
| Appliance | In Port Macquarie | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 5.9 yrs | 8.5 yrs | -31% |
| Washing Machine | 9.5 yrs | 12 yrs | -21% |
| Water Heater | 11.2 yrs | 15 yrs | -25% |
Regional Water Comparison
How Port Macquarie compares to its nearest neighbours
| City | Hardness | Risk | Source |
|---|---|---|---|
| ▶ Port Macquarie, New South Wales | 111 mg/L | 🟡 Moderately Hard | reservoir |
| Taree, New South Wales | 102.5 mg/L | 🟡 Moderately Hard | reservoir |
| Forster, New South Wales | 163 mg/L | 🟠 Hard | reservoir |
| Coffs Harbour, New South Wales | 136 mg/L | 🟠 Hard | reservoir |
| Armidale, New South Wales | 55.5 mg/L | 🟢 Soft | reservoir |
National Benchmark
How Port Macquarie compares to the Australia average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Port Macquarie | 111 mg/L | 🟡 Low |
| Australia National Avg | 125 mg/L | 🟠 Moderate |
| Boronia Top Rated | 5 mg/L | 🟢 None |
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What Makes Port Macquarie's Water Unique?
Local geology and source profile
Port Macquarie's drinking water is supplied by Port Macquarie-Hastings Council Water, drawn from the Hastings River via the Rawdon Island Weir extraction point near Wauchope, treated at the Thrumster Water Treatment Plant in New South Wales. Water hardness in Port Macquarie is measured at 111 mg/L — classified as moderately hard — within the Australian Drinking Water Guidelines (ADWG) aesthetic guideline of 200 mg/L published by NHMRC. The Hastings River system, draining from the New England Tablelands to the mid-north NSW coast, provides a consistent and moderate mineral supply to the coastal city.
Port Macquarie's moderate hardness reflects the geology of the Hastings River catchment. The upper Hastings River drains through Devonian–Carboniferous granodiorite and metamorphic basement of the New England Fold Belt, while the middle and lower catchment traverses alluvial river valley formations containing calcium-bearing sedimentary deposits. Water moving through these mixed geological sequences accumulates a consistent moderate mineral load that produces the 111 mg/L hardness measured at the Port Macquarie tap.
Port Macquarie residents can expect moderate limescale build-up on tap fittings and in kettles — descaling every two to three months is typically adequate. Hot water systems benefit from an annual inspection to check for scale deposits on heating elements. The elevated lead reading (0.003 mg/L) warrants applying the ADWG precautionary guidance of running the cold tap briefly before use in older homes. Council publishes annual water quality reports meeting all ADWG health standards, and a benchtop filter is a worthwhile option for those seeking improved taste from the Hastings River supply.
Geology & Source: Supplied by Port Macquarie-Hastings Council Water from the Hastings River system via the Thrumster Water Treatment Plant and the Rawdon Island Weir extraction point — water draining through Devonian–Carboniferous granodiorite and mixed sedimentary terrain of the New England hinterland and Hastings catchment dissolves moderate calcium and magnesium, producing moderately hard supply at 111 mg/L.