Tap Water Quality in Kwinana, WA
Postcode 6966 · Supplied by Water Corporation via Tamworth Hill
Quality Score
About Kwinana
Kwinana is a suburb in Western Australia, Australia (postcode 6966). It falls within the Water Corporation area. Neighbouring suburbs include Atwell, Aubin Grove, Banjup, Beeliar.
Tap water in Kwinana is supplied by Water Corporation. The suburb receives water via the Tamworth Hill supply zone.
Water quality summary
Based on 2024-25 water quality reports, Kwinana achieves a WaterScore of 9.5 out of 10, rated excellent overall. Water hardness measures 47 mg/L, classified as soft. This is gentle on appliances and skin, with minimal limescale buildup expected. The pH level is 8.11, which is within the ADWG guideline range of 6.5–8.5. The water is fluoridated at 0.82 mg/L, within the recommended range of 0.6–1.1 mg/L for dental health, well under the ADWG maximum of 1.5 mg/L. Total dissolved solids (TDS) measure 129 mg/L, considered low against the ADWG guideline of 600 mg/L. Turbidity is 0.1 NTU, indicating clear water, within the ADWG guideline of 5 NTU.
Compare with nearby suburbs: Atwell , Aubin Grove , Banjup
Recommended filters for Kwinana
Products matched to your water profile
BRITA
Marella 2.4L Fridge Water Filter Jug (Maxtra Pro)
4.8 · 125 ratings on Amazon
A reliable marella 2.4l fridge water filter jug (maxtra pro) suitable for Kwinana's water profile.
ZeroWater
2.8L 5-Stage Jug (IAPMO Certified: PFOA/PFOS + Lead)
4.2 · 5,315 ratings on Amazon
A reliable 2.8l 5-stage jug (iapmo certified: pfoa/pfos + lead) suitable for Kwinana's water profile.
Purewell
8.5L Stainless Steel Gravity System
4.4 · 1,137 ratings on Amazon
A reliable 8.5l stainless steel gravity system suitable for Kwinana's water profile.
Comparison
How Kwinana compares
Compared to Western Australia and national averages
| Metric | Kwinana | WA Avg | National Avg |
|---|---|---|---|
| Hardness | 47 mg/L | 99.8 mg/L | 80.3 mg/L |
| pH | 8.11 | 7.9 | 7.8 |
| Fluoride | 0.82 mg/L | 0.7 mg/L | 0.7 mg/L |
| Turbidity | 0.1 NTU | 0.2 NTU | 0.4 NTU |
| TDS | 129 mg/L | 434.2 mg/L | 267.4 mg/L |
Full Results
Detailed water quality data
All values compared against Australian Drinking Water Guidelines (ADWG)
| Parameter | Value | Unit | ADWG Guideline | Status |
|---|---|---|---|---|
| Alkalinity | 44 | mg/L CaCO3 | No limit | Measured |
| Aluminium | 0.014 | mg/L | < 0.2 | Good |
| Chloride | 34 | mg/L | < 250 | Good |
| Hardness | 47 | mg/L CaCO3 | < 200 | Good |
| Iron | 0.007 | mg/L | < 0.3 | Good |
| Manganese | 0.002 | mg/L | < 0.1 | Good |
| pH | 8.11 | pH units | 6.5 – 8.5 | Normal |
| Sodium | 21 | mg/L | < 180 | Good |
| Sulfate | 2 | mg/L | < 500 | Good |
| Total Dissolved Solids | 129 | mg/L | < 600 | Good |
| Colour | 1 | HU | < 15 | Good |
| Turbidity | 0.1 | NTU | < 5 | Good |
| Fluoride | 0.82 | mg/L | < 1.5 | Good |
| Nitrate | 0.2 | mg/L | < 50 | Good |
| Trihalomethanes | 0.013 | mg/L | < 0.25 | Good |
Safety
Safety assessment
Based on 15 parameters tested, all results fall within Australian Drinking Water Guidelines.
Based on comparison with Australian Drinking Water Guidelines (ADWG)
Explained
What these numbers mean
Soft (47 mg/L)
Water Hardness
Your water is classified as soft, which means minimal limescale buildup on fixtures and appliances. Soap and shampoo will lather easily, and you should notice no drying effects on skin or hair. Hot water systems and kettles are unlikely to suffer scale-related efficiency losses.
Normal Range
pH Level
pH of 8.11 is within the ideal range of 6.5–8.5. The ADWG recommends pH between 6.5 and 8.5 for drinking water.
Fluoridated
Fluoride
Fluoride at 0.82 mg/L. Within the recommended 0.6–1.1 mg/L range for dental health.
Data unavailable
Disinfection
Chlorine data is not currently available for Kwinana.
Learn more about these measurements in our water quality glossary — including Hardness , pH , Fluoride , and ADWG guidelines .
Advice
Practical tips for residents
Soft Water Advantage
Kwinana's water is soft at 47 mg/L. You can use less soap and detergent, as it lathers easily with softer water.
Fluoride in Your Water
Fluoride measures 0.82 mg/L in Kwinana. Australian guidelines allow up to 1.5 mg/L. This is added by utilities to support dental health in the community.
Flush After Absence
If your home has been unoccupied for several days, run the kitchen tap for 30 seconds before drinking. This clears stale water that has been sitting in pipes.
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We'll email you when Kwinana's water data is updated.
FAQ
Frequently asked questions
Is tap water safe to drink in Kwinana?
How hard is the water in Kwinana?
What water utility supplies Kwinana?
Does Kwinana water have fluoride?
What is the water quality score for Kwinana?
Supplier
Water utility
- Utility
- Water Corporation
- Supply Zone
- Tamworth Hill
- Data Source
- Water Corporation — WC Perth Aesthetic Tables 2024 25, WC Perth Health Tables 2024 25
Nearby
Nearby suburbs
Same water utility, similar water quality
Similar Quality
Suburbs with similar water quality
Suburbs scoring between 8.5 and 10.0
Utility reports average the grid — not your home
Kwinana's water meets ADWG standards at the source, but old pipes, roof tanks, and ageing plumbing can add lead, copper or bacteria before the water reaches your tap. These won't show up in your utility report.
Check your own tap before buying a filter or assuming the suburb average matches your home.
Tetra
EasyStrips 6-in-1 Water Test (100 strips)
4.6 · 8,650 ratings on Amazon
Tests 6 parameters in 60 seconds: hardness, chlorine, pH, nitrate, nitrite, alkalinity. Cheapest way to verify your utility data.
Test my tap →Sponsored Amazon link. Check Amazon for current price and availability.
Heavy Metals
Drinking Water Test Kit (Lead, Copper, Iron, Mercury)
4.2 · 250 ratings on Amazon
20 tests. Detects lead, copper, iron, mercury — the things utility reports miss. Mobile-app results, EPA-standard thresholds.
Check metals kit →Sponsored Amazon link. Check Amazon for current price and availability.
Guides for Perth and WA
In-depth articles on the water supply that serves Kwinana
Cite
Cite this page
Free to quote and reuse with a credit to WaterScore and a link to this page. Journalists and researchers can find key figures and contacts on our press and data page.
WaterScore. (2026). Tap water quality in Kwinana, WA [Data set]. Compiled from Water Corporation data (2024-25 annual report). https://waterscore.com.au/water-quality/kwinana-wa/
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Related
Explore more
Related pages for Kwinana, WA
Is tap water safe?
Safety assessment
Water hardness
47 mg/L
Best water filter
Filter recommendations
Western Australia water quality
State coverage
Water Corporation
Water utility
Compare with Atwell
Kwinana vs Atwell
Compare with Aubin Grove
Kwinana vs Aubin Grove
Compare with Banjup
Kwinana vs Banjup
Disclaimer: The information on this page is for general informational purposes only and does not constitute medical advice, health recommendations, or professional guidance. Water quality data is sourced from Water Corporation (2024-25 annual report) and reflects conditions at the time of utility testing — it may not reflect real-time water quality at your tap. Actual water quality can vary due to local plumbing, seasonal changes, and distance from the treatment plant. For specific health concerns, consult a qualified health professional. For the most current water quality information, contact your local water utility directly. See our Terms of Use.