Water hardness & quality in Winthrop, WA
6150 · Perth Region · Reporting period 2023-2024
Winthrop 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, Melville, about 1 km away.
Water hardness
SoftLikely54mg/L
Little to no scale on kettles, shower screens or appliances, and soap lathers easily. A water softener isn't needed.
Estimated from Melville (54 mg/L, 1 km).
ADWG aesthetic guideline: 200 mg/L. Hardness affects scale and taste, not safety.
Compare water hardness across WA →Nearest monitored supply · 1 km from Winthrop
Melville
Its water is softer and closer to 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
About average for the Perth Region
Hardness
Calcium & magnesium
Softer than 73% of Perth Region supplies
pH balance
How close to neutral (7.0)
More neutral than 67% of Perth Region supplies
Other monitored supplies near Winthrop
Water quality in suburbs near Winthrop
Common questions
Is the tap water in Winthrop tested?
Winthrop isn't sampled as an individual locality. Its water is supplied through the Water Corporation network; the closest monitored supply point is Melville, about 1 km away.
How hard is the water in Winthrop?
Winthrop isn't sampled directly. Its nearest monitored supply, Melville (about 1 km away), averages 54 mg/L of hardness — soft. Little to no scale on kettles, shower screens or appliances, and soap lathers easily. A water softener isn't needed.
Is the tap water in Winthrop safe to drink?
Winthrop isn't tested on its own, but its nearest monitored supply, Melville, met every NHMRC Australian Drinking Water Guidelines health limit with published data in 2023-2024.
How to read this
Winthrop 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).