Tap Water Quality in Millbrook, SA
Postcode 5231 · Supplied by SA Water via Anstey Hill (supplying north eastern Adelaide)
Quality Score
About Millbrook
Millbrook is a suburb of 133 residents in South Australia (postcode 5231). The median age is 50. It falls within the SA Water area. Neighbouring suburbs include Cudlee Creek, Inglewood, Chain Of Ponds, Lower Hermitage.
Most residents own outright (58%), while 22% own their home with a mortgage, while 16% rent. The median household income is $53,612 per year. The top countries of birth for residents are United Kingdom (105%).
Tap water in Millbrook is supplied by SA Water. The suburb receives water via the Anstey Hill (supplying north eastern Adelaide) supply zone.
Water quality summary
Based on 2025 water quality reports, Millbrook achieves a WaterScore of 9.6 out of 10, rated excellent overall. Water hardness measures 87 mg/L, classified as moderately hard. This may cause light mineral deposits on fixtures over time. The water is fluoridated at 0.7 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 0.2 mg/L — well within the ADWG guideline of 5 mg/L. Total dissolved solids (TDS) measure 263 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. E. coli was not detected in testing, meeting the ADWG standard for microbiological safety.
Compare with nearby suburbs: Cudlee Creek , Inglewood , Chain Of Ponds
Census Data
Suburb snapshot
Population
Median Age
Median Income
Owner-occupied
Recommended filters for Millbrook
Products matched to your water profile
BRITA
Marella 2.4L Fridge Water Filter Jug (Maxtra+)
4.7 · 16,095 ratings on Amazon
A reliable marella 2.4l fridge water filter jug (maxtra+) suitable for Millbrook'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 Millbrook'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 Millbrook's water profile.
Comparison
How Millbrook compares
Compared to South Australia and national averages
| Metric | Millbrook | SA Avg | National Avg |
|---|---|---|---|
| Hardness | 87 mg/L | 119.3 mg/L | 80.3 mg/L |
| pH | — | 8.6 | 7.8 |
| Fluoride | 0.7 mg/L | 0.5 mg/L | 0.7 mg/L |
| Chlorine | 0.2 mg/L | — | — |
| Turbidity | 0.1 NTU | 0.1 NTU | 0.4 NTU |
| TDS | 263 mg/L | 341.5 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 | 54 | mg/L | No limit | Measured |
| Aluminium | 0.029 | mg/L | < 0.2 | Good |
| Calcium | 18.7 | mg/L | No limit | Measured |
| Chloride | 74 | mg/L | < 250 | Good |
| Free Chlorine | 0.2 | mg/L | < 5 | Good |
| Total Chlorine | 0.3 | mg/L | < 5 | Good |
| Colour | 1 | HU | < 15 | Good |
| Copper | 0.0027 | mg/L | < 2 | Good |
| E. coli | 0 | cfu/100mL | < 0 | Compliant |
| Fluoride | 0.7 | mg/L | < 1.5 | Good |
| Hardness | 87 | PPM or mg/L | < 200 | Good |
| Iron | 0.0054 | mg/L | < 0.3 | Good |
| Lead | 0.0002 | mg/L | < 0.01 | Good |
| Magnesium | 9.91 | mg/L | No limit | Measured |
| Manganese | 0.0004 | mg/L | < 0.1 | Good |
| Nitrate | 0.62 | mg/L | < 50 | Good |
| Sodium | 47 | mg/L | < 180 | Good |
| Sulfate | 42.7 | mg/L | < 500 | Good |
| Total Dissolved Solids | 263 | mg/L | < 600 | Good |
| Turbidity | 0.1 | NTU | < 5 | Good |
Safety
Safety assessment
Based on 20 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 (87 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.
Data unavailable
pH Level
pH data is not currently available for Millbrook.
Fluoridated
Fluoride
Fluoride at 0.7 mg/L. Within the recommended 0.6–1.1 mg/L range for dental health.
Chlorine
Disinfection
Chlorine measured at 0.2 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 Millbrook measures 0.2 mg/L, which is low. Filling a jug and letting it stand for 30 minutes will reduce any residual taste.
Soft Water Advantage
Millbrook's water is moderately hard at 87 mg/L. You can use less soap and detergent, as it lathers easily with softer water.
Fluoride in Your Water
Fluoride measures 0.7 mg/L in Millbrook. Australian guidelines allow up to 1.5 mg/L. This is added by utilities to support dental health in the community.
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FAQ
Frequently asked questions
Is tap water safe to drink in Millbrook?
How hard is the water in Millbrook?
What water utility supplies Millbrook?
Does Millbrook water have fluoride?
What is the water quality score for Millbrook?
What is the population of Millbrook?
Supplier
Water utility
- Utility
- SA Water
- Supply Zone
- Anstey Hill (supplying north eastern Adelaide)
- Data Source
- SA Water — water quality performance results november 2025
Nearby
Nearby suburbs
Same water utility, similar water quality
Similar Quality
Suburbs with similar water quality
Suburbs scoring between 8.6 and 10.0
Utility reports average the grid — not your home
Millbrook'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 Adelaide and SA
In-depth articles on the water supply that serves Millbrook
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 Millbrook, SA [Data set]. Compiled from SA Water data (2025 report). https://waterscore.com.au/water-quality/millbrook-sa/
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Related
Explore more
Related pages for Millbrook, SA
Is tap water safe?
Safety assessment
Water hardness
87 mg/L
Best water filter
Filter recommendations
South Australia water quality
State coverage
SA Water
Water utility
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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 SA Water (2025 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.