Water hardness & quality in South Boulder, WA
6432 · Goldfields and Agricultural Region · Reporting period 2023-2024
South Boulder 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, Kalgoorlie, about 5 km away.
Water hardness
Moderately hardLikely105mg/L
Some scale builds up over time on kettles and shower heads. Most homes don't need a softener.
Estimated from Kalgoorlie (105 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 South Boulder
Kalgoorlie
Its water is much closer to neutral pH and softer, though it runs less pure, versus the Goldfields and Agricultural Region.
Purity
By-products & nitrate
Less pure than 66% of Goldfields and Agricultural Region supplies
Clarity
Turbidity, colour, metals
About average for the Goldfields and Agricultural Region
Taste
Sodium, chloride, TDS
About average for the Goldfields and Agricultural Region
Hardness
Calcium & magnesium
Softer than 70% of Goldfields and Agricultural Region supplies
pH balance
How close to neutral (7.0)
More neutral than 97% of Goldfields and Agricultural Region supplies
Other monitored supplies near South Boulder
Water quality in suburbs near South Boulder
Common questions
Is the tap water in South Boulder tested?
South Boulder isn't sampled as an individual locality. Its water is supplied through the Water Corporation network; the closest monitored supply point is Kalgoorlie, about 5 km away.
How hard is the water in South Boulder?
South Boulder isn't sampled directly. Its nearest monitored supply, Kalgoorlie (about 5 km away), averages 105 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 South Boulder safe to drink?
South Boulder isn't tested on its own, but its nearest monitored supply, Kalgoorlie, met every NHMRC Australian Drinking Water Guidelines health limit with published data in 2023-2024.
How to read this
South Boulder 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).