Tap Water Quality in Lottah, TAS
Postcode 7216 · Supplied by TasWater via St Helens
Quality Score
About Lottah
Lottah is a suburb of 16 residents in Tasmania (postcode 7216). The median age is 59. It falls within the TasWater area. Neighbouring suburbs include Akaroa, Ansons Bay, Binalong Bay, Goshen.
Most residents own outright (89%), while 0% own their home with a mortgage, while 0% rent. The median household income is $25,428 per year.
Tap water in Lottah is supplied by TasWater. The suburb receives water via the St Helens supply zone.
Water quality summary
Based on recent water quality reports, Lottah achieves a WaterScore of 9.6 out of 10, rated excellent overall. Water hardness measures 13.5 mg/L, classified as soft. This is gentle on appliances and skin, with minimal limescale buildup expected. The pH level is 7.262424, which is within the ADWG guideline range of 6.5–8.5. The water is fluoridated at 0.86 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 1.132424 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 111.25 mg/L, considered low against the ADWG guideline of 600 mg/L. Turbidity is 0.333636 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: Akaroa , Ansons Bay , Binalong Bay
Census Data
Suburb snapshot
Population
Median Age
Median Income
Owner-occupied
Recommended filters for Lottah
Products matched to your water profile
BRITA
Marella 2.4L Fridge Water Filter Jug (Maxtra+)
4.7 · 16,095 ratings on Amazon
Ideal for Lottah — 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 Lottah's water profile.
Purewell
8.5L Stainless Steel Gravity System
4.4 · 1,137 ratings on Amazon
Ideal for Lottah — removes chlorine taste and odour.
Comparison
How Lottah compares
Compared to Tasmania and national averages
| Metric | Lottah | TAS Avg | National Avg |
|---|---|---|---|
| Hardness | 13.5 mg/L | 34.8 mg/L | 85.1 mg/L |
| pH | 7.262424 | 7.4 | 8.4 |
| Fluoride | 0.86 mg/L | 0.9 mg/L | 0.7 mg/L |
| Chlorine | 1.132424 mg/L | — | — |
| Turbidity | 0.333636 NTU | 0.3 NTU | 0.4 NTU |
| TDS | 111.25 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 | 26.666667 | mg/L | No limit | Measured |
| Aluminium | 0.0275 | mg/L | < 0.2 | Good |
| Ammonia | 0.002 | 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 | 3.325 | mg/L | No limit | Measured |
| Chloride | 18.25 | mg/L | < 250 | Good |
| Free Chlorine | 1.132424 | mg/L | < 5 | Good |
| Total Chlorine | 1.234286 | mg/L | < 5 | Good |
| Chromium | 0.001 | mg/L | No limit | Measured |
| Colour | 2.166667 | Pt-Co | < 15 | Good |
| Conductivity | 180 | uS/cm | No limit | Measured |
| Copper | 0.001875 | mg/L | < 2 | Good |
| Cyanide | 0.005 | mg/L | No limit | Measured |
| E. coli | 0 | MPN/100ml | < 0 | Compliant |
| Fluoride | 0.86 | mg/L | < 1.5 | Good |
| Hardness | 13.5 | mg/L | < 200 | Good |
| Iron | 0.01125 | mg/L | < 0.3 | Good |
| Lead | 0.001125 | mg/L | < 0.01 | Good |
| Magnesium | 1.45 | mg/L | No limit | Measured |
| Manganese | 0.002625 | mg/L | < 0.1 | Good |
| Mercury | 0.0001 | mg/L | No limit | Measured |
| Nickel | 0.001 | mg/L | No limit | Measured |
| Nitrate | 0.239167 | mg/L | < 50 | Good |
| Nitrite | 0.002 | mg/L | No limit | Measured |
| pH | 7.262424 | pH units | 6.5 – 8.5 | Normal |
| Sodium | 29.5 | mg/L | < 180 | Good |
| Sulfate | 29.916667 | mg/L | < 500 | Good |
| Temperature | 14.536364 | degrees C | No limit | Measured |
| Total Coliforms | 0 | MPN/100ml | < 0 | Compliant |
| Total Dissolved Solids | 111.25 | mg/L | < 600 | Good |
| Trihalomethanes | 0.03025 | mg/L | < 0.25 | Good |
| Turbidity | 0.333636 | NTU | < 5 | Good |
| Zinc | 0.002 | 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 (13.5 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 7.262424 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 0.86 mg/L. Within the recommended 0.6–1.1 mg/L range for dental health.
Chlorine
Disinfection
Chlorine measured at 1.132424 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
Reduce Chlorine Taste
Lottah's chlorine level is 1.132424 mg/L. An activated carbon jug filter or benchtop unit can noticeably reduce chlorine taste and odour from tap water.
Soft Water Advantage
Lottah's water is soft at 13.5 mg/L. You can use less soap and detergent, as it lathers easily with softer water.
Fluoride in Your Water
Fluoride measures 0.86 mg/L in Lottah. Australian guidelines allow up to 1.5 mg/L. This is added by utilities to support dental health in the community.
Get water quality alerts
We'll email you when Lottah's water data is updated.
FAQ
Frequently asked questions
Is tap water safe to drink in Lottah?
How hard is the water in Lottah?
What water utility supplies Lottah?
Does Lottah water have fluoride?
What is the water quality score for Lottah?
What is the population of Lottah?
Supplier
Water utility
- Utility
- TasWater
- Supply Zone
- St Helens
- Data Source
- TasWater — St Helens
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
Lottah'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 Lottah
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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 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.