Tap Water Quality in Mount Stromlo, ACT
Postcode 2611 · Supplied by Icon Water via South Canberra, Woden and Weston
Quality Score
About Mount Stromlo
Mount Stromlo is a suburb in Australian Capital Territory, Australia (postcode 2611). It falls within the Icon Water area. Neighbouring suburbs include Pierces Creek, Uriarra Forest, Weston Creek, Uriarra Village.
Tap water in Mount Stromlo is supplied by Icon Water. The suburb receives water via the South Canberra, Woden and Weston supply zone.
Water quality summary
Based on 2024-25 water quality reports, Mount Stromlo achieves a WaterScore of 8.3 out of 10, rated excellent overall. Water hardness measures 38 mg/L, classified as soft. This is gentle on appliances and skin, with minimal limescale buildup expected. The pH level is 7.78, which is within the ADWG guideline range of 6.5–8.5. The water is fluoridated at 0.8 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 0.69 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. Total dissolved solids (TDS) measure 72 mg/L, considered low against the ADWG guideline of 600 mg/L. 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: Pierces Creek , Uriarra Forest , Weston Creek
Recommended filters for Mount Stromlo
Products matched to your water profile
BRITA
Marella 2.4L Fridge Water Filter Jug (Maxtra+)
4.7 · 16,095 ratings on Amazon
Ideal for Mount Stromlo — 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 Mount Stromlo's water profile.
Purewell
8.5L Stainless Steel Gravity System
4.4 · 1,137 ratings on Amazon
Ideal for Mount Stromlo — removes chlorine taste and odour.
Comparison
How Mount Stromlo compares
Compared to Australian Capital Territory and national averages
| Metric | Mount Stromlo | ACT Avg | National Avg |
|---|---|---|---|
| Hardness | 38 mg/L | 37.9 mg/L | 85.1 mg/L |
| pH | 7.78 | 7.8 | 8.4 |
| Fluoride | 0.8 mg/L | 0.8 mg/L | 0.7 mg/L |
| Chlorine | 0.69 mg/L | — | — |
| Turbidity | 0.3 NTU | 0.4 NTU | 0.4 NTU |
| TDS | 72 mg/L | 72.6 mg/L | 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 |
|---|---|---|---|---|
| E. coli | 0 | MPN/100mL | < 0 | Compliant |
| Total Coliforms | 0 | MPN/100mL | < 0 | Compliant |
| Conductivity | 103 | µS/cm | No limit | Measured |
| pH | 7.78 | pH units | 6.5 – 8.5 | Normal |
| Temperature | 16.7 | °C | No limit | Measured |
| Total Dissolved Solids | 72 | mg/L | < 600 | Good |
| Colour | 1 | HU | < 15 | Good |
| Turbidity | 0.3 | NTU | < 5 | Good |
| Alkalinity | 37 | mg/L CaCO3 | No limit | Measured |
| Aluminium | 28 | mg/L | < 0.2 | Exceeds |
| Calcium | 12.61 | mg/L | No limit | Measured |
| Chloride | 4.3 | mg/L | < 250 | Good |
| Monochloramine | 0.1 | mg/L | < 3 | Good |
| Free Chlorine | 0.69 | mg/L | < 5 | Good |
| Total Chlorine | 0.79 | mg/L | < 5 | Good |
| Cyanide | 0.004 | mg/L | No limit | Measured |
| Fluoride | 0.8 | mg/L | < 1.5 | Good |
| Hardness | 38 | mg/L CaCO3 | < 200 | Good |
| Magnesium | 1.5 | mg/L | No limit | Measured |
| Nitrate | 0.1 | mg/L | < 50 | Good |
| Sodium | 3.8 | mg/L | < 180 | Good |
| Sulfate | 5.5 | mg/L | < 500 | Good |
| Antimony | 3 | mg/L | No limit | Measured |
| Cadmium | 0.05 | mg/L | No limit | Measured |
| Chromium | 2 | mg/L | No limit | Measured |
| Copper | 21 | mg/L | < 2 | Exceeds |
| Iron | 0.01 | mg/L | < 0.3 | Good |
| Lead | 0.5 | mg/L | < 0.01 | Exceeds |
| Manganese | 0.005 | mg/L | < 0.1 | Good |
| Nickel | 1 | mg/L | No limit | Measured |
| Zinc | 5 | mg/L | No limit | Measured |
| Trihalomethanes | 0.039 | mg/L | < 0.25 | Good |
Safety
Safety assessment
Of 32 parameters tested, several exceed Australian Drinking Water Guidelines: Aluminium (28 mg/L), Copper (21 mg/L), Lead (0.5 mg/L). 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
Soft (38 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 7.78 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 0.8 mg/L. Within the recommended 0.6–1.1 mg/L range for dental health.
Chlorine
Disinfection
Chlorine measured at 0.69 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 Mount Stromlo measures 0.69 mg/L, which is low. Filling a jug and letting it stand for 30 minutes will reduce any residual taste.
Soft Water Advantage
Mount Stromlo's water is soft at 38 mg/L. You can use less soap and detergent, as it lathers easily with softer water.
Fluoride in Your Water
Fluoride measures 0.8 mg/L in Mount Stromlo. 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 Mount Stromlo?
How hard is the water in Mount Stromlo?
What water utility supplies Mount Stromlo?
Does Mount Stromlo water have fluoride?
What is the water quality score for Mount Stromlo?
Supplier
Water utility
- Utility
- Icon Water
- Supply Zone
- South Canberra, Woden and Weston
- Data Source
- Icon Water — Drinking Water Quality Report 2024 25, Icon Water Drinking Water Quality Report 2015 2016
Nearby
Nearby suburbs
Same water utility, similar water quality
Similar Quality
Suburbs with similar water quality
Suburbs scoring between 7.3 and 9.3
Utility reports average the grid — not your home
Mount Stromlo'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 Canberra
In-depth articles on the water supply that serves Mount Stromlo
Related
Explore more
Related pages for Mount Stromlo, ACT
Is tap water safe?
Safety assessment
Water hardness
38 mg/L
Best water filter
Filter recommendations
Australian Capital Territory water quality
State coverage
Icon Water
Water utility
Compare with Pierces Creek
Mount Stromlo vs Pierces Creek
Compare with Uriarra Forest
Mount Stromlo vs Uriarra Forest
Compare with Weston Creek
Mount Stromlo vs Weston Creek
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 Icon Water (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.