Is Tap Water Safe to Drink in Hollow Tree, TAS?
Postcode 7140 · Supplied by TasWater · Current data · annual report
Yes, safe to drink
Tap water in Hollow Tree meets Australian Drinking Water Guidelines across all tested parameters. The water is safe to drink straight from the tap.
Compare with nearby suburbs: Black Hills , Boyer , Bradys Lake
ADWG compliance check
Each parameter tested against Australian Drinking Water Guidelines
| Parameter | Value | Unit | ADWG Guideline | Status |
|---|---|---|---|---|
| Alkalinity | 46.857143 | mg/L | No limit | Measured |
| Aluminium | 0.011667 | 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 | 17.666667 | mg/L | No limit | Measured |
| Chloride | 78.666667 | mg/L | < 250 | Good |
| Free Chlorine | 1.087187 | mg/L | < 5 | Good |
| Total Chlorine | 1.356667 | mg/L | < 5 | Good |
| Chromium | 0.001 | mg/L | No limit | Measured |
| Colour | 2.428571 | Pt-Co | < 15 | Good |
| Conductivity | 318.571429 | uS/cm | No limit | Measured |
| Copper | 0.003667 | mg/L | < 2 | Good |
| Cyanide | 0.005 | mg/L | No limit | Measured |
| E. coli | 0 | MPN/100ml | < 0 | Compliant |
| Hardness | 80.285714 | mg/L | < 200 | Good |
| Iron | 0.01 | mg/L | < 0.3 | Good |
| Lead | 0.001 | mg/L | < 0.01 | Good |
| Magnesium | 11.3 | mg/L | No limit | Measured |
| Manganese | 0.0015 | mg/L | < 0.1 | Good |
| Mercury | 0.0001 | mg/L | No limit | Measured |
| Nickel | 0.001 | mg/L | No limit | Measured |
| Nitrate | 0.105571 | mg/L | < 50 | Good |
| Nitrite | 0.002 | mg/L | No limit | Measured |
| pH | 7.385625 | pH units | 6.5 – 8.5 | Normal |
| Sodium | 23.0005 | mg/L | < 180 | Good |
| Sulfate | 10.571429 | mg/L | < 500 | Good |
| Temperature | 12.5375 | degrees C | No limit | Measured |
| Total Coliforms | 0 | MPN/100ml | < 0 | Compliant |
| Total Dissolved Solids | 185.714286 | mg/L | < 600 | Good |
| Trihalomethanes | 0.047667 | mg/L | < 0.25 | Good |
| Turbidity | 0.285938 | NTU | < 5 | Good |
| Zinc | 0.001667 | mg/L | No limit | Measured |
What's in your water
Key parameters explained in plain English
Water Hardness
At 80.285714 mg/L, Hollow Tree's water is classified as moderately hard. You may notice some limescale buildup in kettles and appliances. The ADWG aesthetic guideline is 200 mg/L.
pH Level
pH of 7.385625 is within the safe range of 6.5–8.5. Water outside this range may taste metallic or cause pipe corrosion.
Fluoride
Fluoride data is not currently available for Hollow Tree.
Chlorine (Disinfection)
Chlorine at 1.087187 mg/L (ADWG limit: 5 mg/L). Used to kill harmful bacteria and ensure water stays safe in the pipes. May affect taste — a carbon filter or refrigerating water can reduce chlorine.
E. coli
No E. coli detected — the water meets the ADWG standard of zero E. coli per 100 mL. This indicates effective disinfection.
About your water supply
- Water Utility
- TasWater
- Supply Zone
- Bothwell
Frequently asked questions
Is Hollow Tree tap water safe?
What contaminants are in Hollow Tree water?
Should I filter my tap water in Hollow Tree?
Guides for Hobart and Tasmania
In-depth articles on the water supply that serves Hollow Tree
Learn more about water in Hollow Tree
Is tap water safe in nearby suburbs?
Safety assessments for suburbs on the same water supply
Utility reports average the grid — not your home
Hollow Tree'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.
Recommended water filters for Hollow Tree
Based on Hollow Tree's water profile — matched to the parameters tested above
BRITA
Marella 2.4L Fridge Water Filter Jug (Maxtra+)
4.7 · 16,095 ratings on Amazon
Ideal for Hollow Tree — 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 Hollow Tree's water profile.
Purewell
8.5L Stainless Steel Gravity System
4.4 · 1,137 ratings on Amazon
Ideal for Hollow Tree — removes chlorine taste and odour.
Important disclaimer: The safety assessment on this page is for general informational purposes only and does not constitute medical advice, health recommendations, or a guarantee of water safety. Our assessment is based on comparison against Australian Drinking Water Guidelines (ADWG) using data from TasWater (annual report). This data reflects conditions at the time of utility testing and may not reflect real-time water quality at your specific tap. Water quality can be affected by local plumbing, building age, seasonal variations, and other factors not captured in utility reports. If you have health concerns about your drinking water, please consult a qualified health professional or contact your local water utility directly. See our Terms of Use.