Tap Water Quality in Gembrook, VIC
Postcode 3783 · Supplied by Yarra Valley Water via Emerald
Quality Score
About Gembrook
Gembrook is a suburb of 2,559 residents in Victoria (postcode 3783). The median age is 41. It falls within the Melbourne North-East area. Neighbouring suburbs include Cockatoo, Avonsleigh, Yellingbo, Emerald.
Most residents own their home with a mortgage (52%), while 32% own outright, while 12% rent. The median household income is $104,104 per year. The top countries of birth for residents are United Kingdom (42%), New Zealand (10%), and Germany (7%).
Tap water in Gembrook is supplied by Yarra Valley Water. Yarra Valley Water serves Melbourne North-East. The suburb receives water via the Emerald, Gembrook, Emerald supply zones.
Water quality summary
Based on 2023-24 water quality reports, Gembrook achieves a WaterScore of 9.5 out of 10, rated excellent overall. Water hardness measures 13 mg/L, classified as soft. This is gentle on appliances and skin, with minimal limescale buildup expected. The pH level is 7.5, which is within the ADWG guideline range of 6.5–8.5. The water is fluoridated at 0.71 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 0.38 mg/L — well within the ADWG guideline of 5 mg/L. Turbidity is 2.8 NTU, 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: Cockatoo , Avonsleigh , Yellingbo
Census Data
Suburb snapshot
Population
Median Age
Median Income
Owner-occupied
Recommended filters for Gembrook
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 Gembrook's water profile.
ZeroWater
23-Cup Dispenser (incl. TDS Meter)
4.3 · 27,123 ratings on Amazon
A reliable 23-cup dispenser (incl. tds meter) suitable for Gembrook'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 Gembrook's water profile.
Comparison
How Gembrook compares
Compared to Victoria and national averages
| Metric | Gembrook | VIC Avg | National Avg |
|---|---|---|---|
| Hardness | 13 mg/L | 28 mg/L | 85.1 mg/L |
| pH | 7.5 | 7.4 | 8.4 |
| Fluoride | 0.71 mg/L | 0.7 mg/L | 0.7 mg/L |
| Chlorine | 0.38 mg/L | — | — |
| Turbidity | 2.8 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 |
|---|---|---|---|---|
| E. coli | 0 | MPN/100mL | < 0 | Compliant |
| Trihalomethanes | 0.07 | mg/L | < 0.25 | Good |
| Turbidity | 2.8 | NTU | < 5 | Good |
| Copper | 0.034 | mg/L | < 2 | Good |
| Free Chlorine | 0.38 | mg/L | < 5 | Good |
| Fluoride | 0.71 | mg/L | < 1.5 | Good |
| Lead | 0.0003 | mg/L | < 0.01 | Good |
| pH | 7.5 | pH units | 6.5 – 8.5 | Normal |
| Iron | 0.067 | mg/L | < 0.3 | Good |
| Zinc | 0.022 | mg/L | No limit | Measured |
| Hardness | 13 | mg/L CaCO3 | < 200 | Good |
Safety
Safety assessment
Based on 11 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
Soft (13 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 7.5 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 0.71 mg/L. Within the recommended 0.6–1.1 mg/L range for dental health.
Chlorine
Disinfection
Chlorine measured at 0.38 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 Gembrook measures 0.38 mg/L, which is low. Filling a jug and letting it stand for 30 minutes will reduce any residual taste.
Soft Water Advantage
Gembrook's water is soft at 13 mg/L. You can use less soap and detergent, as it lathers easily with softer water.
Fluoride in Your Water
Fluoride measures 0.71 mg/L in Gembrook. Australian guidelines allow up to 1.5 mg/L. This is added by utilities to support dental health in the community.
Sediment Filtration
Turbidity is 2.8 NTU in Gembrook. A sediment pre-filter on your main line can help reduce fine particles and improve water clarity at the tap.
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We'll email you when Gembrook's water data is updated.
FAQ
Frequently asked questions
Is tap water safe to drink in Gembrook?
How hard is the water in Gembrook?
What water utility supplies Gembrook?
Does Gembrook water have fluoride?
What is the water quality score for Gembrook?
What is the population of Gembrook?
Supplier
Water utility
- Utility
- Yarra Valley Water
- Service Area
- Melbourne North-East
- Supply Zone
- Emerald
- Website
- www.yvw.com.au
- Data Source
- Yarra Valley Water — YVW 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 8.5 and 10.0
Utility reports average the grid — not your home
Gembrook'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 Gembrook
Related
Explore more
Related pages for Gembrook, VIC
Is tap water safe?
Safety assessment
Water hardness
13 mg/L
Best water filter
Filter recommendations
Victoria water quality
State coverage
Yarra Valley Water
Water utility
Compare with Cockatoo
Gembrook vs Cockatoo
Compare with Avonsleigh
Gembrook vs Avonsleigh
Compare with Yellingbo
Gembrook vs Yellingbo
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 Yarra Valley 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.