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Perth Water Quality · Lexia

Water quality in Lexia

Your local water hardness and the full breakdown of 16 parameters, sourced from Water Corporation's 2023–24 report.

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Lexia supply zone
Hard water
145mg/L total hardness (range 120–170)
Water in Lexia is hard. Expect limescale on appliances, shower screens and hot water systems over time. Scale prevention or softening makes a noticeable difference here.
Other figures worth knowing
Chlorine by-products (THMs)0.102mg/L
pH7.7
Dissolved solids465mg/L
Sodium73mg/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 Lexia they run at about 41% of the safety guideline.

What this means for your home

Water in Lexia is hard. Expect limescale on appliances, shower screens and hot water systems over time. Scale prevention or softening makes a noticeable difference here.

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Our honest take: A scale-prevention or softening stage is worth it — it protects your appliances and hot water system.
See your filtration options → Learn about hard water
Full water quality breakdown — Lexia
Scale & hardness
Total hardness145120–170 mg/L as CaCO3
Total dissolved solids465435–495 mg/L
Alkalinity115110–120 mg/L as CaCO3
Silica15.514–17 mg/L
General chemistry
pH7.77.69–7.7 pH units
Sodium7347–98 mg/L
Chloride13090–170 mg/L
Sulphate3923–55 mg/L
Aesthetic (taste, colour, staining)
Iron0.0150.01–0.02 mg/L
Manganese0.0090.003–0.014 mg/L
Aluminium0.0090.008–0.01 mg/L
True colour11–2 HU
Turbidity0.20.1–0.3 NTU
Health-related
Fluoride0.780.7–0.85 mg/L
Nitrate1.30.4–2.6 mg/L
Trihalomethanes (THMs)0.1020.078–0.13 mg/L
Suburbs in the Lexia supply area: Aveley, Brabham, Caversham, Dayton, Ellenbrook, Henley Brook, Lexia, The Vines, West Swan. Water Corporation reports quality by supply locality rather than individual suburb, so these suburbs share the Lexia 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. Lexia 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.