Tap Water Quality in Deer Park East, VIC
Postcode 3022 · Supplied by Greater Western Water via Caroline Springs
Quality Score
About Deer Park East
Deer Park East is a suburb in Victoria, Australia (postcode 3022). It falls within the Greater Western Water area. Neighbouring suburbs include Ardeer, Sunshine West, Derrimut, Deer Park North.
Tap water in Deer Park East is supplied by Greater Western Water. The suburb receives water via the Caroline Springs supply zone.
Water quality summary
Based on 2023-24 water quality reports, Deer Park East achieves a WaterScore of 9.6 out of 10, rated excellent overall. Water hardness measures 19 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 0.8 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 0.39 mg/L — well within the ADWG guideline of 5 mg/L. Turbidity is 1.3 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: Ardeer , Sunshine West , Derrimut
Recommended filters for Deer Park East
Products matched to your water profile
BRITA
Marella 2.4L Fridge Water Filter Jug (Maxtra Pro)
4.8 · 125 ratings on Amazon
A reliable marella 2.4l fridge water filter jug (maxtra pro) suitable for Deer Park East'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 Deer Park East'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 Deer Park East's water profile.
Comparison
How Deer Park East compares
Compared to Victoria and national averages
| Metric | Deer Park East | VIC Avg | National Avg |
|---|---|---|---|
| Hardness | 19 mg/L | 28 mg/L | 80.3 mg/L |
| pH | 7.5 | 7.4 | 7.8 |
| Fluoride | 0.8 mg/L | 0.7 mg/L | 0.7 mg/L |
| Chlorine | 0.39 mg/L | — | — |
| Turbidity | 1.3 NTU | 1.8 NTU | 0.4 NTU |
| TDS | — | — | 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 |
|---|---|---|---|---|
| Free Chlorine | 0.39 | mg/L | < 5 | Good |
| Total Chlorine | 0.53 | mg/L | < 5 | Good |
| Colour | 2 | HU | < 15 | Good |
| E. coli | 0 | MPN/100mL | < 0 | Compliant |
| Electrical Conductivity | 90 | No limit | Measured | |
| Fluoride | 0.8 | mg/L | < 1.5 | Good |
| Hardness | 19 | mg/L CaCO3 | < 200 | Good |
| Iron | 0.06 | mg/L | < 0.3 | Good |
| Manganese | 0.002 | mg/L | < 0.1 | Good |
| pH | 7.5 | pH units | 6.5 – 8.5 | Normal |
| Sodium | 6.5 | mg/L | < 180 | Good |
| Trihalomethanes | 0.027 | mg/L | < 0.25 | Good |
| Turbidity | 1.3 | NTU | < 5 | Good |
Safety
Safety assessment
Based on 13 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 (19 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 0.8 mg/L. Within the recommended 0.6–1.1 mg/L range for dental health.
Chlorine
Disinfection
Chlorine measured at 0.39 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 Deer Park East measures 0.39 mg/L, which is low. Filling a jug and letting it stand for 30 minutes will reduce any residual taste.
Soft Water Advantage
Deer Park East's water is soft at 19 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 Deer Park East. 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 1.3 NTU in Deer Park East. A sediment pre-filter on your main line can help reduce fine particles and improve water clarity at the tap.
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FAQ
Frequently asked questions
Is tap water safe to drink in Deer Park East?
How hard is the water in Deer Park East?
What water utility supplies Deer Park East?
Does Deer Park East water have fluoride?
What is the water quality score for Deer Park East?
Supplier
Water utility
- Utility
- Greater Western Water
- Supply Zone
- Caroline Springs
- 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 8.6 and 10.0
Utility reports average the grid — not your home
Deer Park East'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 Deer Park East
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 Deer Park East, VIC [Data set]. Compiled from Greater Western Water data (2023-24 annual report). https://waterscore.com.au/water-quality/deer-park-east-vic/
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Related
Explore more
Related pages for Deer Park East, VIC
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Safety assessment
Water hardness
19 mg/L
Best water filter
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Victoria water quality
State coverage
Greater Western Water
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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 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.