Water hardness & quality in College Grove, WA
6230 · South West Region · Reporting period 2023-2024
College Grove 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, Dalyellup, about 5 km away.
Water hardness
Moderately hardLikely76mg/L
Some scale builds up over time on kettles and shower heads. Most homes don't need a softener.
Estimated from Dalyellup (76 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 College Grove
Dalyellup
Its water runs harder and saltier than most of the South West Region.
Purity
By-products & nitrate
About average for the South West Region
Clarity
Turbidity, colour, metals
About average for the South West Region
Taste
Sodium, chloride, TDS
Saltier than 70% of South West Region supplies
Hardness
Calcium & magnesium
Harder than 75% of South West Region supplies
pH balance
How close to neutral (7.0)
About average for the South West Region
Other monitored supplies near College Grove
Water quality in suburbs near College Grove
Common questions
Is the tap water in College Grove tested?
College Grove isn't sampled as an individual locality. Its water is supplied through the Water Corporation network; the closest monitored supply point is Dalyellup, about 5 km away.
How hard is the water in College Grove?
College Grove isn't sampled directly. Its nearest monitored supply, Dalyellup (about 5 km away), averages 76 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 College Grove safe to drink?
College Grove isn't tested on its own, but its nearest monitored supply, Dalyellup, met every NHMRC Australian Drinking Water Guidelines health limit with published data in 2023-2024.
How to read this
College Grove 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).