Campbelltown Water Hardness & Quality Report (2026)
Water Hardness
Source
reservoir
pH Level
7.3
neutral = 7.0
Lead
0.002 mg/L
✓ Below action level
TDS
108.8 mg/L
Est. Daily Cost
A$0.19
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 Campbelltown, your appliances are currently losing 8% efficiency due to mineral buildup.
| Appliance | In Campbelltown | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 7.6 yrs | 8.5 yrs | -11% |
| Washing Machine | 11.3 yrs | 12 yrs | -6% |
| Water Heater | 13.2 yrs | 15 yrs | -12% |
Regional Water Comparison
How Campbelltown compares to its nearest neighbours
| City | Hardness | Risk | Source |
|---|---|---|---|
| ▶ Campbelltown, New South Wales | 61 mg/L | 🟡 Moderately Hard | reservoir |
| Minto, New South Wales | 89 mg/L | 🟡 Moderately Hard | reservoir |
| Mount Annan, New South Wales | 198 mg/L | 🔴 Very Hard | reservoir |
| Ingleburn, New South Wales | 93.5 mg/L | 🟡 Moderately Hard | reservoir |
| Harrington Park, New South Wales | 102.5 mg/L | 🟡 Moderately Hard | reservoir |
National Benchmark
How Campbelltown compares to the Australia average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Campbelltown | 61 mg/L | 🟡 Low |
| Australia National Avg | 125 mg/L | 🟠 Moderate |
| Boronia Top Rated | 5 mg/L | 🟢 None |
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What Makes Campbelltown's Water Unique?
Local geology and source profile
Campbelltown's drinking water is supplied by Sydney Water, treated at the Prospect Water Filtration Plant drawing predominantly from Warragamba Dam (Nepean River system) for the Campbelltown City LGA outer south-western Sydney distribution in New South Wales. Water hardness in Campbelltown is measured at 61 mg/L — classified as slightly hard — within the Australian Drinking Water Guidelines (ADWG) aesthetic guideline of 200 mg/L published by NHMRC. Campbelltown — the outer south-western Sydney city and major regional centre at the southern end of the Metropolitan Rail Network, home to Western Sydney University Campbelltown Campus, the Ingleburn and Campbelltown Civic Centre precinct, and the thriving Campbelltown CBD retail and arts culture in Macarthur Square — receives remarkably soft supply in striking contrast to the hard Macquarie Fields (160 mg/L) also in the Campbelltown LGA, demonstrating dramatic supply blend variation within the same LGA.
Campbelltown CBD's soft supply reflects a predominantly Warragamba Dam contribution at this outer south-western Campbelltown Prospect distribution sub-zone, with minimal Hawkesbury-Nepean blending through this specific CBD distribution routing. Warragamba Dam collects rainfall from the Blue Mountains sandstone plateau and Kanangra–Boyd granite uplands — chemically resistant terrain contributing negligible dissolved minerals. The Campbelltown outer south-western distribution at 61 mg/L and TDS 108.8 mg/L receives a proportionally high Warragamba fraction through supply routing distinct from the harder outer Macquarie Fields sub-zone in the same Campbelltown LGA.
Campbelltown residents enjoy low to moderate limescale accumulation on taps and in kettles — descaling every two to three months is typically adequate. Hot water systems accumulate minimal scale. The very low lead reading (0.002 mg/L) is excellent. Sydney Water provides water quality information at sydneywater.com.au, with all ADWG health standards consistently met. Campbelltown's regional city CBD community and Western Sydney University campus benefit from this soft, clean supply meeting all ADWG standards.
Geology & Source: Supplied by Sydney Water via the Prospect Water Filtration Plant drawing predominantly from Warragamba Dam — the Campbelltown Campbelltown LGA outer south-western Sydney supply carries slightly hard water at 61 mg/L with low TDS of 108.8 mg/L, remarkably soft in contrast to the hard Macquarie Fields (160 mg/L) in the same Campbelltown LGA, reflecting a predominantly Warragamba-dominant supply routing through the outer south-western Campbelltown CBD distribution.