Tap Water Quality in Garden Island Creek, TAS
Postcode 7112 · Supplied by TasWater via Kingborough Greater Hobart
Quality Score
About Garden Island Creek
Garden Island Creek is a suburb of 282 residents in Tasmania (postcode 7112). The median age is 38. It falls within the TasWater area. Neighbouring suburbs include Abels Bay, Charlotte Cove, Cygnet, Deep Bay.
Most residents own their home with a mortgage (42%), while 37% own outright, while 14% rent. The median household income is $53,872 per year. The top countries of birth for residents are United Kingdom (60%) and Ireland (10%).
Tap water in Garden Island Creek is supplied by TasWater. The suburb receives water via the Kingborough Greater Hobart supply zone.
Water quality summary
Based on recent water quality reports, Garden Island Creek achieves a WaterScore of 9.7 out of 10, rated excellent overall. Water hardness measures 17.5 mg/L, classified as soft. This is gentle on appliances and skin, with minimal limescale buildup expected. The pH level is 7.125666, which is within the ADWG guideline range of 6.5–8.5. The water is fluoridated at 0.953333 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 0.762816 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 38.789474 mg/L, considered low against the ADWG guideline of 600 mg/L. Turbidity is 0.481092 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: Abels Bay , Charlotte Cove , Cygnet
Census Data
Suburb snapshot
Population
Median Age
Median Income
Owner-occupied
Recommended filters for Garden Island Creek
Products matched to your water profile
BRITA
Marella 2.4L Fridge Water Filter Jug (Maxtra+)
4.7 · 16,095 ratings on Amazon
Ideal for Garden Island Creek — removes chlorine taste and odour.
ZeroWater
2.8L 5-Stage Jug (PFAS + Fluoride + Lead, IAPMO Certified)
4.2 · 5,315 ratings on Amazon
A reliable 2.8l 5-stage jug (pfas + fluoride + lead, iapmo certified) suitable for Garden Island Creek's water profile.
Purewell
8.5L Stainless Steel Gravity System
4.4 · 1,137 ratings on Amazon
Ideal for Garden Island Creek — removes chlorine taste and odour.
Comparison
How Garden Island Creek compares
Compared to Tasmania and national averages
| Metric | Garden Island Creek | TAS Avg | National Avg |
|---|---|---|---|
| Hardness | 17.5 mg/L | 34.8 mg/L | 85.1 mg/L |
| pH | 7.125666 | 7.4 | 8.4 |
| Fluoride | 0.953333 mg/L | 0.9 mg/L | 0.7 mg/L |
| Chlorine | 0.762816 mg/L | — | — |
| Turbidity | 0.481092 NTU | 0.3 NTU | 0.4 NTU |
| TDS | 38.789474 mg/L | 93.3 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 |
|---|---|---|---|---|
| Alkalinity | 9 | mg/L | No limit | Measured |
| Aluminium | 0.016429 | mg/L | < 0.2 | Good |
| Ammonia | 0.002263 | mg/L | No limit | Measured |
| Antimony | 0.001 | mg/L | No limit | Measured |
| Arsenic | 0.001 | mg/L | No limit | Measured |
| Cadmium | 0.0002 | mg/L | No limit | Measured |
| Calcium | 4.9 | mg/L | No limit | Measured |
| Chloride | 7.428571 | mg/L | < 250 | Good |
| Free Chlorine | 0.762816 | mg/L | < 5 | Good |
| Total Chlorine | 0.9255 | mg/L | < 5 | Good |
| Chromium | 0.001 | mg/L | No limit | Measured |
| Colour | 2.473684 | Pt-Co | < 15 | Good |
| Conductivity | 59.368421 | uS/cm | No limit | Measured |
| Copper | 0.007714 | mg/L | < 2 | Good |
| Cyanide | 0.005 | mg/L | No limit | Measured |
| E. coli | 0 | MPN/100ml | < 0 | Compliant |
| Fluoride | 0.953333 | mg/L | < 1.5 | Good |
| Hardness | 17.5 | mg/L | < 200 | Good |
| Iron | 0.026429 | mg/L | < 0.3 | Good |
| Lead | 0.001 | mg/L | < 0.01 | Good |
| Magnesium | 1.057143 | mg/L | No limit | Measured |
| Manganese | 0.001786 | mg/L | < 0.1 | Good |
| Mercury | 0.0001 | mg/L | No limit | Measured |
| Nickel | 0.001 | mg/L | No limit | Measured |
| Nitrate | 0.009158 | mg/L | < 50 | Good |
| Nitrite | 0.002 | mg/L | No limit | Measured |
| pH | 7.125666 | pH units | 6.5 – 8.5 | Normal |
| Sodium | 3.171429 | mg/L | < 180 | Good |
| Sulfate | 3.578947 | mg/L | < 500 | Good |
| Temperature | 13.215529 | degrees C | No limit | Measured |
| Total Coliforms | 0 | MPN/100ml | < 0 | Compliant |
| Total Dissolved Solids | 38.789474 | mg/L | < 600 | Good |
| Trihalomethanes | 0.04 | mg/L | < 0.25 | Good |
| Turbidity | 0.481092 | NTU | < 5 | Good |
| Zinc | 0.004 | mg/L | No limit | Measured |
Safety
Safety assessment
Based on 35 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 (17.5 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 7.125666 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 0.953333 mg/L. Within the recommended 0.6–1.1 mg/L range for dental health.
Chlorine
Disinfection
Chlorine measured at 0.762816 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 Garden Island Creek measures 0.762816 mg/L, which is low. Filling a jug and letting it stand for 30 minutes will reduce any residual taste.
Soft Water Advantage
Garden Island Creek's water is soft at 17.5 mg/L. You can use less soap and detergent, as it lathers easily with softer water.
Fluoride in Your Water
Fluoride measures 0.953333 mg/L in Garden Island Creek. 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 Garden Island Creek?
How hard is the water in Garden Island Creek?
What water utility supplies Garden Island Creek?
Does Garden Island Creek water have fluoride?
What is the water quality score for Garden Island Creek?
What is the population of Garden Island Creek?
Supplier
Water utility
- Utility
- TasWater
- Supply Zone
- Kingborough Greater Hobart
- Data Source
- TasWater — Kingborough Greater Hobart
Nearby
Nearby suburbs
Same water utility, similar water quality
Similar Quality
Suburbs with similar water quality
Suburbs scoring between 8.7 and 10.0
Utility reports average the grid — not your home
Garden Island Creek'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 Hobart and Tasmania
In-depth articles on the water supply that serves Garden Island Creek
Related
Explore more
Related pages for Garden Island Creek, TAS
Is tap water safe?
Safety assessment
Water hardness
17.5 mg/L
Best water filter
Filter recommendations
Tasmania water quality
State coverage
TasWater
Water utility
Compare with Abels Bay
Garden Island Creek vs Abels Bay
Compare with Charlotte Cove
Garden Island Creek vs Charlotte Cove
Compare with Cygnet
Garden Island Creek vs Cygnet
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 TasWater (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.