Perth Water Quality · Greenmount
Water quality in Greenmount
Your local water hardness and the full breakdown of 16 parameters, sourced from Water Corporation's 2023–24 report.
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Greenmount supply zone
Moderately hard
95mg/L total hardness (range 89–110)
Water in Greenmount is moderately hard. You may notice some scale over time on kettles and shower screens, but it’s manageable. Carbon filtration improves taste; softening is optional.
Other figures worth knowing
Chlorine by-products (THMs)0.113mg/L
pH8.13
Dissolved solids488mg/L
Sodium113mg/L
Perth's water is disinfected with free chlorine at roughly 0.4–1.0 mg/L network-wide. The figure above is trihalomethanes (THMs) — by-products of chlorination that a catalytic carbon filter reduces. In Greenmount they run at about 45% of the safety guideline.
What this means for your home
Water in Greenmount is moderately hard. You may notice some scale over time on kettles and shower screens, but it’s manageable. Carbon filtration improves taste; softening is optional.
✓Our honest take: A carbon filter improves taste and chlorine; scale prevention is a nice-to-have, not essential.
Full water quality breakdown — Greenmount
Scale & hardness
Total hardness9589–110 mg/L as CaCO3
Total dissolved solids488443–575 mg/L
Alkalinity10070–130 mg/L as CaCO3
Silica12.34.7–18 mg/L
General chemistry
pH8.137.94–8.37 pH units
Sodium11397–130 mg/L
Chloride176160–195 mg/L
Sulphate2220–23 mg/L
Aesthetic (taste, colour, staining)
Iron0.0130.004–0.02 mg/L
Manganese0.0020.002–0.003 mg/L
Aluminium0.0080.008–0.02 mg/L
True colour11–1 HU
Turbidity0.10.1–0.2 NTU
Health-related
Fluoride0.830.75–0.9 mg/L
Nitrate1.80.9–3.1 mg/L
Trihalomethanes (THMs)0.1130.08–0.14 mg/L
Suburbs in the Greenmount supply area: Bellevue, Greenmount, Helena Valley, Jane Brook, Koongamia, Midland, Midvale, Stratton, Swan View. Water Corporation reports quality by supply locality rather than individual suburb, so these suburbs share the Greenmount figures above. Your exact property may vary slightly.
Check a different suburb
Source: Water Corporation Drinking Water Quality Annual Report 2023–24, Perth Region (aesthetic & health tables). Figures are locality means with min–max range. Verified June 2026. Greenmount met all health-related safety requirements in 2023–24. See all Perth suburbs →
Complete Home Filtration and CHF are trademarks used by Environmental Water Solutions Pty Ltd. ProperWater is not affiliated with, endorsed by, or sponsored by Complete Home Filtration or Environmental Water Solutions Pty Ltd. Model references including CHF-6000 and CHF-6200 are used solely to indicate product compatibility — PW Series replacement filters are independently designed for compatibility with standard 15" × 4.5" filter housings. All comparative pricing based on Complete Home Filtration's publicly published rates as of 2025.