Water hardness & quality in Green Valley, WA
6330 · Great Southern Region · Reporting period 2023-2024
Green Valley 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 — Narrikup and Albany.
Water hardness
Very hardLikely258mg/L
Nearby supplies: 258–265 mg/L
Heavy scale on fixtures and appliances, and harder on hot water systems. Softeners and filters are common.
Estimated from Narrikup (258 mg/L, 15 km) and Albany (265 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 · 15 km from Green Valley
Narrikup
Its water is much clearer and closer to neutral pH, though it runs much harder and saltier, versus the Great Southern Region.
Purity
By-products & nitrate
About average for the Great Southern Region
Clarity
Turbidity, colour, metals
Clearer than 85% of Great Southern Region supplies
Taste
Sodium, chloride, TDS
Saltier than 79% of Great Southern Region supplies
Hardness
Calcium & magnesium
Harder than 86% of Great Southern Region supplies
pH balance
How close to neutral (7.0)
More neutral than 76% of Great Southern Region supplies
Nearest monitored supply · 18 km from Green Valley
Albany
Its water is much closer to neutral pH and clearer, though it runs much harder and saltier, versus the Great Southern Region.
Purity
By-products & nitrate
About average for the Great Southern Region
Clarity
Turbidity, colour, metals
Clearer than 70% of Great Southern Region supplies
Taste
Sodium, chloride, TDS
Saltier than 83% of Great Southern Region supplies
Hardness
Calcium & magnesium
Harder than 87% of Great Southern Region supplies
pH balance
How close to neutral (7.0)
More neutral than 95% of Great Southern Region supplies
Other monitored supplies near Green Valley
Water quality in suburbs near Green Valley
Common questions
Is the tap water in Green Valley tested?
Green Valley isn't sampled as an individual locality. Its water is supplied through the Water Corporation network; the closest monitored supply point is Narrikup, about 15 km away.
How hard is the water in Green Valley?
Green Valley isn't sampled directly. Its nearest monitored supply, Narrikup (about 15 km away), averages 258 mg/L of hardness — very hard. Other supplies within a few kilometres read 258–265 mg/L, so your street may differ. Heavy scale on fixtures and appliances, and harder on hot water systems. Softeners and filters are common.
Is the tap water in Green Valley safe to drink?
Green Valley isn't tested on its own, but its nearest monitored supply, Narrikup, met every NHMRC Australian Drinking Water Guidelines health limit with published data in 2023-2024.
How to read this
Green Valley 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).