Water hardness & quality in Serpentine, WA
6125 · Perth Region · Reporting period 2023-2024
Serpentine 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 the two monitored supply points it sits between — North Dandalup and Tamworth Hill.
Water hardness
SoftLikely33mg/L
Nearby supplies: 33–53 mg/L
Little to no scale on kettles, shower screens or appliances, and soap lathers easily. A water softener isn't needed.
Estimated from North Dandalup (33 mg/L, 16 km) and Tamworth Hill (53 mg/L, 18 km).
ADWG aesthetic guideline: 200 mg/L. Hardness affects scale and taste, not safety.
Compare water hardness across WA →Nearest monitored supply · 16 km from Serpentine
North Dandalup
Its water is much softer and much fresher, though it runs further from neutral pH, versus the Perth Region.
Purity
By-products & nitrate
Purer than 74% of Perth Region supplies
Clarity
Turbidity, colour, metals
About average for the Perth Region
Taste
Sodium, chloride, TDS
Fresher than 85% of Perth Region supplies
Hardness
Calcium & magnesium
Softer than 91% of Perth Region supplies
pH balance
How close to neutral (7.0)
Further from neutral than 81% of Perth Region supplies
Nearest monitored supply · 18 km from Serpentine
Tamworth Hill
Its water is much fresher and much purer, though it runs much further from neutral pH, versus the Perth Region.
Purity
By-products & nitrate
Purer than 93% of Perth Region supplies
Clarity
Turbidity, colour, metals
About average for the Perth Region
Taste
Sodium, chloride, TDS
Fresher than 100% of Perth Region supplies
Hardness
Calcium & magnesium
Softer than 91% of Perth Region supplies
pH balance
How close to neutral (7.0)
Further from neutral than 93% of Perth Region supplies
Other monitored supplies near Serpentine
Water quality in suburbs near Serpentine
Common questions
Is the tap water in Serpentine tested?
Serpentine isn't sampled as an individual locality. Its water is supplied through the Water Corporation network; the closest monitored supply point is North Dandalup, about 16 km away.
How hard is the water in Serpentine?
Serpentine isn't sampled directly. Its nearest monitored supply, North Dandalup (about 16 km away), averages 33 mg/L of hardness — soft. Other supplies within a few kilometres read 33–53 mg/L, so your street may differ. 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 Serpentine safe to drink?
Serpentine isn't tested on its own, but its nearest monitored supply, North Dandalup, met every NHMRC Australian Drinking Water Guidelines health limit with published data in 2023-2024.
How to read this
Serpentine 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).