Tap Water Quality in Maddingley, VIC
Postcode 3340 · Supplied by Greater Western Water via Maddingley
Quality Score
About Maddingley
Maddingley is a suburb of 5,491 residents in Victoria (postcode 3340). The median age is 33. It falls within the Greater Western Water area. Neighbouring suburbs include Bacchus Marsh, Darley, Parwan, Merrimu.
Most residents own their home with a mortgage (55%), while 24% rent, while 19% own outright. The median household income is $99,996 per year. The top countries of birth for residents are India (30%), United Kingdom (16%), and New Zealand (7%).
Tap water in Maddingley is supplied by Greater Western Water. The suburb receives water via the Maddingley supply zone.
Water quality summary
Based on 2023-24 water quality reports, Maddingley achieves a WaterScore of 9.4 out of 10, rated excellent overall. Water hardness measures 91 mg/L, classified as moderately hard. This may cause light mineral deposits on fixtures over time. The pH level is 7.6, which is within the ADWG guideline range of 6.5–8.5. The water is fluoridated at 0.61 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. Chlorine, used for disinfection, measures 0.93 mg/L — well within the ADWG guideline of 5 mg/L. Some residents may notice a slight taste, which can be reduced by refrigerating water or using a carbon filter. Turbidity is 0.3 NTU, indicating clear water, within the ADWG guideline of 5 NTU. E. coli was not detected in testing, meeting the ADWG standard for microbiological safety.
Compare with nearby suburbs: Bacchus Marsh , Darley , Parwan
Census Data
Suburb snapshot
Population
Median Age
Median Income
Owner-occupied
Recommended filters for Maddingley
Products matched to your water profile
BRITA
Marella 2.4L Fridge Water Filter Jug (Maxtra+)
4.7 · 16,095 ratings on Amazon
Ideal for Maddingley — removes chlorine taste and odour.
ZeroWater
23-Cup Dispenser (incl. TDS Meter)
4.3 · 27,123 ratings on Amazon
A reliable 23-cup dispenser (incl. tds meter) suitable for Maddingley's water profile.
Purewell
8.5L Stainless Steel Gravity System
4.4 · 1,137 ratings on Amazon
Ideal for Maddingley — removes chlorine taste and odour.
Comparison
How Maddingley compares
Compared to Victoria and national averages
| Metric | Maddingley | VIC Avg | National Avg |
|---|---|---|---|
| Hardness | 91 mg/L | 28 mg/L | 85.3 mg/L |
| pH | 7.6 | 7.4 | 7.8 |
| Fluoride | 0.61 mg/L | 0.7 mg/L | 0.7 mg/L |
| Chlorine | 0.93 mg/L | — | — |
| Turbidity | 0.3 NTU | 1.8 NTU | 0.4 NTU |
| TDS | — | — | 275.7 mg/L |
Full Results
Detailed water quality data
All values compared against Australian Drinking Water Guidelines (ADWG)
| Parameter | Value | Unit | ADWG Guideline | Status |
|---|---|---|---|---|
| Alkalinity | 35 | mg/L CaCO3 | No limit | Measured |
| Aluminium | 0.04 | mg/L | < 0.2 | Good |
| Free Chlorine | 0.93 | mg/L | < 5 | Good |
| Total Chlorine | 1.2 | mg/L | < 5 | Good |
| Colour | 2 | HU | < 15 | Good |
| E. coli | 0 | MPN/100mL | < 0 | Compliant |
| Electrical Conductivity | 392 | No limit | Measured | |
| Fluoride | 0.61 | mg/L | < 1.5 | Good |
| Hardness | 91 | mg/L CaCO3 | < 200 | Good |
| Iron | 0.02 | mg/L | < 0.3 | Good |
| Manganese | 0.001 | mg/L | < 0.1 | Good |
| pH | 7.6 | pH units | 6.5 – 8.5 | Normal |
| Sodium | 32.8 | mg/L | < 180 | Good |
| Trihalomethanes | 0.129 | mg/L | < 0.25 | Good |
| Turbidity | 0.3 | NTU | < 5 | Good |
Safety
Safety assessment
Based on 15 parameters tested, all results fall within Australian Drinking Water Guidelines. E. coli was not detected, meeting the ADWG standard for microbiological safety.
Based on comparison with Australian Drinking Water Guidelines (ADWG)
Explained
What these numbers mean
Moderately hard (91 mg/L)
Water Hardness
Your water is moderately hard. You may notice light limescale deposits on kettle elements and taps over time. Soap lathers reasonably well, though slightly more product may be needed. Skin and hair are generally unaffected, and appliance lifespan should not be significantly reduced at this level.
Normal Range
pH Level
pH of 7.6 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 0.61 mg/L. Within the recommended 0.6–1.1 mg/L range for dental health.
Chlorine
Disinfection
Chlorine measured at 0.93 mg/L, well within the ADWG guideline of 5 mg/L. Used for disinfection to keep water safe. May affect taste slightly — refrigerating water or using a carbon filter can help.
Learn more about these measurements in our water quality glossary — including Hardness , pH , Fluoride , and ADWG guidelines .
Advice
Practical tips for residents
Chlorine Levels Are Low
Chlorine in Maddingley measures 0.93 mg/L, which is low. Filling a jug and letting it stand for 30 minutes will reduce any residual taste.
Soft Water Advantage
Maddingley's water is moderately hard at 91 mg/L. You can use less soap and detergent, as it lathers easily with softer water.
Fluoride in Your Water
Fluoride measures 0.61 mg/L in Maddingley. Australian guidelines allow up to 1.5 mg/L. This is added by utilities to support dental health in the community.
Get water quality alerts
We'll email you when Maddingley's water data is updated.
FAQ
Frequently asked questions
Is tap water safe to drink in Maddingley?
How hard is the water in Maddingley?
What water utility supplies Maddingley?
Does Maddingley water have fluoride?
What is the water quality score for Maddingley?
What is the population of Maddingley?
Supplier
Water utility
- Utility
- Greater Western Water
- Supply Zone
- Maddingley
- Data Source
- Greater Western Water — GWW Annual Water Quality Report 2023 24
Nearby
Nearby suburbs
Same water utility, similar water quality
Similar Quality
Suburbs with similar water quality
Suburbs scoring between 8.4 and 10.0
Utility reports average the grid — not your home
Maddingley'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 Melbourne
In-depth articles on the water supply that serves Maddingley
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 Maddingley, VIC [Data set]. Compiled from Greater Western Water data (2023-24 annual report). https://waterscore.com.au/water-quality/maddingley-vic/
Embed
Add Maddingley, VIC water data to your website
For plumbers, filter suppliers, cafés and real estate agents. Paste this code into your page to show the badge below, which links back to this report.
Related
Explore more
Related pages for Maddingley, VIC
Is tap water safe?
Safety assessment
Water hardness
91 mg/L
Best water filter
Filter recommendations
Victoria water quality
State coverage
Greater Western Water
Water utility
Compare with Bacchus Marsh
Maddingley vs Bacchus Marsh
Compare with Darley
Maddingley vs Darley
Compare with Parwan
Maddingley vs Parwan
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 Greater Western Water (2023-24 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.