Water hardness & quality in Henderson, WA
6166 · Perth Region · Reporting period 2023-2024
Henderson 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, Thomsons Lake, about 5 km away.
Water hardness
Moderately hardLikely86mg/L
Some scale builds up over time on kettles and shower heads. Most homes don't need a softener.
Estimated from Thomsons Lake (86 mg/L, 5 km).
ADWG aesthetic guideline: 200 mg/L. Hardness affects scale and taste, not safety.
Compare water hardness across WA →Nearest monitored supply · 5 km from Henderson
Thomsons Lake
Its water is clearer than most of the Perth Region.
Purity
By-products & nitrate
About average for the Perth Region
Clarity
Turbidity, colour, metals
Clearer than 69% of Perth Region supplies
Taste
Sodium, chloride, TDS
About average for the Perth Region
Hardness
Calcium & magnesium
About average for the Perth Region
pH balance
How close to neutral (7.0)
About average for the Perth Region
Other monitored supplies near Henderson
Water quality in suburbs near Henderson
Common questions
Is the tap water in Henderson tested?
Henderson isn't sampled as an individual locality. Its water is supplied through the Water Corporation network; the closest monitored supply point is Thomsons Lake, about 5 km away.
How hard is the water in Henderson?
Henderson isn't sampled directly. Its nearest monitored supply, Thomsons Lake (about 5 km away), averages 86 mg/L of hardness — moderately hard. Some scale builds up over time on kettles and shower heads. Most homes don't need a softener.
Is the tap water in Henderson safe to drink?
Henderson isn't tested on its own, but its nearest monitored supply, Thomsons Lake, met every NHMRC Australian Drinking Water Guidelines health limit with published data in 2023-2024.
How to read this
Henderson 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).