Tap Water Quality in Bacchus Marsh, VIC
Postcode 3340 · Supplied by Greater Western Water via Darley
Quality Score
About Bacchus Marsh
Bacchus Marsh is a suburb of 7,808 residents in Victoria (postcode 3340). The median age is 39. It falls within the Greater Western Water area. Neighbouring suburbs include Darley, Merrimu, Maddingley, Parwan.
Most residents own their home with a mortgage (37%), while 32% own outright, while 26% rent. The median household income is $78,416 per year. The top countries of birth for residents are United Kingdom (28%), India (17%), and New Zealand (10%).
Tap water in Bacchus Marsh is supplied by Greater Western Water. The suburb receives water via the Darley supply zone.
Water quality summary
Based on 2023-24 water quality reports, Bacchus Marsh achieves a WaterScore of 9.4 out of 10, rated excellent overall. Water hardness measures 95 mg/L, classified as moderately hard. This may cause light mineral deposits on fixtures over time. The pH level is 7.7, which is within the ADWG guideline range of 6.5–8.5. The water is fluoridated at 0.57 mg/L, well under the ADWG maximum of 1.5 mg/L. Chlorine, used for disinfection, measures 0.81 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 0.35 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: Darley , Merrimu , Maddingley
Census Data
Suburb snapshot
Population
Median Age
Median Income
Owner-occupied
Recommended filters for Bacchus Marsh
Products matched to your water profile
BRITA
Marella 2.4L Fridge Water Filter Jug (Maxtra+)
4.7 · 16,095 ratings on Amazon
Ideal for Bacchus Marsh — removes chlorine taste and odour.
Waterdrop
TSA Under-Sink Filter (Fluoride + PFAS)
4.4 · 2,237 ratings on Amazon
A reliable tsa under-sink filter (fluoride + pfas) suitable for Bacchus Marsh's water profile.
Purewell
8.5L Stainless Steel Gravity System
4.4 · 1,137 ratings on Amazon
Ideal for Bacchus Marsh — removes chlorine taste and odour.
Comparison
How Bacchus Marsh compares
Compared to Victoria and national averages
| Metric | Bacchus Marsh | VIC Avg | National Avg |
|---|---|---|---|
| Hardness | 95 mg/L | 28 mg/L | 85.1 mg/L |
| pH | 7.7 | 7.4 | 8.4 |
| Fluoride | 0.57 mg/L | 0.7 mg/L | 0.7 mg/L |
| Chlorine | 0.81 mg/L | — | — |
| Turbidity | 0.35 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 | 36 | mg/L CaCO3 | No limit | Measured |
| Aluminium | 0.03 | mg/L | < 0.2 | Good |
| Free Chlorine | 0.81 | mg/L | < 5 | Good |
| Total Chlorine | 1.09 | mg/L | < 5 | Good |
| Colour | 2 | HU | < 15 | Good |
| E. coli | 0 | MPN/100mL | < 0 | Compliant |
| Electrical Conductivity | 389 | No limit | Measured | |
| Fluoride | 0.57 | mg/L | < 1.5 | Good |
| Hardness | 95 | mg/L CaCO3 | < 200 | Good |
| Iron | 0.02 | mg/L | < 0.3 | Good |
| Manganese | 0.001 | mg/L | < 0.1 | Good |
| pH | 7.7 | pH units | 6.5 – 8.5 | Normal |
| Sodium | 32.2 | mg/L | < 180 | Good |
| Trihalomethanes | 0.117 | mg/L | < 0.25 | Good |
| Turbidity | 0.35 | 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 (95 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 7.7 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 0.57 mg/L. Below the recommended range.
Chlorine
Disinfection
Chlorine measured at 0.81 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 Bacchus Marsh measures 0.81 mg/L, which is low. Filling a jug and letting it stand for 30 minutes will reduce any residual taste.
Soft Water Advantage
Bacchus Marsh's water is moderately hard at 95 mg/L. You can use less soap and detergent, as it lathers easily with softer water.
Fluoride in Your Water
Fluoride measures 0.57 mg/L in Bacchus Marsh. 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 Bacchus Marsh?
How hard is the water in Bacchus Marsh?
What water utility supplies Bacchus Marsh?
Does Bacchus Marsh water have fluoride?
What is the water quality score for Bacchus Marsh?
What is the population of Bacchus Marsh?
Supplier
Water utility
- Utility
- Greater Western Water
- Supply Zone
- Darley
- 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
Bacchus Marsh'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 Bacchus Marsh
Related
Explore more
Related pages for Bacchus Marsh, VIC
Is tap water safe?
Safety assessment
Water hardness
95 mg/L
Best water filter
Filter recommendations
Victoria water quality
State coverage
Greater Western Water
Water utility
Compare with Darley
Bacchus Marsh vs Darley
Compare with Merrimu
Bacchus Marsh vs Merrimu
Compare with Maddingley
Bacchus Marsh vs Maddingley
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.