Water hardness & quality in Westminster, WA
6061 · Perth Region · Reporting period 2023-2024
Westminster isn't sampled as its own locality. Its drinking water is supplied through the Water Corporation network, so the closest picture of what comes out of the tap is its nearest monitored supply point, Mirrabooka, about 3 km away.
Water hardness
HardLikely128mg/L
Nearby supplies: 103–128 mg/L
Noticeable scale on kettles, taps and hot water systems. Regular descaling helps, and some homes add a softener.
Estimated from Mirrabooka (128 mg/L, 3 km) and Mount Yokine (103 mg/L, 4 km).
ADWG aesthetic guideline: 200 mg/L. Hardness affects scale and taste, not safety.
Compare water hardness across WA →Nearest monitored supply · 3 km from Westminster
Mirrabooka
Its water runs saltier and further from neutral pH than most of the Perth Region.
Purity
By-products & nitrate
About average for the Perth Region
Clarity
Turbidity, colour, metals
About average for the Perth Region
Taste
Sodium, chloride, TDS
Saltier than 84% of Perth Region supplies
Hardness
Calcium & magnesium
About average for the Perth Region
pH balance
How close to neutral (7.0)
Further from neutral than 70% of Perth Region supplies
Other monitored supplies near Westminster
Water quality in suburbs near Westminster
Common questions
Is the tap water in Westminster tested?
Westminster isn't sampled as an individual locality. Its water is supplied through the Water Corporation network; the closest monitored supply point is Mirrabooka, about 3 km away.
How hard is the water in Westminster?
Westminster isn't sampled directly. Its nearest monitored supply, Mirrabooka (about 3 km away), averages 128 mg/L of hardness — hard. Other supplies within a few kilometres read 103–128 mg/L, so your street may differ. Noticeable scale on kettles, taps and hot water systems. Regular descaling helps, and some homes add a softener.
Is the tap water in Westminster safe to drink?
Westminster isn't tested on its own, but its nearest monitored supply, Mirrabooka, met every NHMRC Australian Drinking Water Guidelines health limit with published data in 2023-2024.
How to read this
Westminster doesn't have its own published sampling point. The supplies shown here are the closest monitored locations by distance — a useful proxy, but not a guarantee of the exact source feeding your street, since much of Perth draws on the blended Integrated Water Supply Scheme. For the authoritative picture, check with Water Corporation.
Readings come from the Water Corporation of WA Drinking Water Quality Annual Report 2023-2024, ranked within each supply's region. Suburb locations: GeoNames (CC BY 4.0).