Bonnet Hill vs Opossum Bay

Name: Water Quality Comparison: Bonnet Hill vs Opossum Bay
Creator: WaterScore
License: https://creativecommons.org/licenses/by/4.0/

Side-by-side tap water quality comparison

Opossum Bay, TAS

9.8

Quality Score

Supplied by TasWater

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Which suburb has better water?

It's very close! Bonnet Hill scores 9.7/10 and Opossum Bay scores 9.8/10. Both suburbs have similar water quality based on ADWG compliance data.

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Recommended for this suburb

Chlorine in Opossum Bay is 0.829548 mg/L — above the taste threshold. That pool smell in every glass is real.

Chlorine is added on purpose (kills bugs in the pipes), but by the time it reaches your tap it ruins everything you taste. Tea takes on a medicinal edge. Kids turn down water and drink juice or soft drink instead. The usual family fix is bottled water, but a simple carbon filter is the cleaner daily habit. Worse, many filter pitchers go in the fridge and get ignored because they're slow.

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Visual comparison

Bonnet Hill, TAS

Opossum Bay, TAS

Key metrics comparison

Hardness (mg/L)

Bonnet Hill

17.5 Lower

Opossum Bay

46.285714 Higher

pH Level

Bonnet Hill

7.125666 Normal

Opossum Bay

7.414137 Normal

Fluoride (mg/L)

Bonnet Hill

0.953333

Opossum Bay

—

Chlorine (mg/L)

Bonnet Hill

0.762816 Lower

Opossum Bay

0.829548 Higher

Full water quality comparison

All parameters compared against Australian Drinking Water Guidelines (ADWG)

Parameter	Bonnet Hill	Opossum Bay	Unit	ADWG Guideline
Alkalinity	9 Measured	19.727273 Measured	mg/L	No limit
Aluminium	0.016429 Good	0.033333 Good	mg/L	< 0.2
Ammonia	0.002263 Measured	0.002182 Measured	mg/L	No limit
Antimony	0.001 Measured	0.001 Measured	mg/L	No limit
Arsenic	0.001 Measured	0.001 Measured	mg/L	No limit
Cadmium	0.0002 Measured	0.0002 Measured	mg/L	No limit
Calcium	4.9 Measured	16.666667 Measured	mg/L	No limit
Chloride	7.428571 Good	10.111111 Good	mg/L	< 250
Chromium	0.001 Measured	0.001 Measured	mg/L	No limit
Colour	2.473684 Good	2.238095 Good	Pt-Co	< 15
Conductivity	59.368421 Measured	121.363636 Measured	uS/cm	No limit
Copper	0.007714 Good	0.007944 Good	mg/L	< 2
Cyanide	0.005 Measured	0.005 Measured	mg/L	No limit
E. coli	0 Compliant	0 Compliant	MPN/100ml	< 0
Fluoride	0.953333 Good	—	mg/L	< 1.5
Free Chlorine	0.762816 Good	0.829548 Good	mg/L	< 5
Hardness	17.5 Good	46.285714 Good	mg/L	< 200
Iron	0.026429 Good	0.012222 Good	mg/L	< 0.3
Lead	0.001 Good	0.001 Good	mg/L	< 0.01
Magnesium	1.057143 Measured	2.511111 Measured	mg/L	No limit
Manganese	0.001786 Good	0.001111 Good	mg/L	< 0.1
Mercury	0.0001 Measured	0.0001 Measured	mg/L	No limit
Nickel	0.001 Measured	0.001 Measured	mg/L	No limit
Nitrate	0.009158 Good	0.040409 Good	mg/L	< 50
Nitrite	0.002 Measured	0.002 Measured	mg/L	No limit
pH	7.125666 Normal	7.414137 Normal	pH units	6.5 – 8.5
Sodium	3.171429 Good	4.333333 Good	mg/L	< 180
Sulfate	3.578947 Good	20 Good	mg/L	< 500
Temperature	13.215529 Measured	13.944521 Measured	degrees C	No limit
Total Chlorine	0.9255 Good	0.966842 Good	mg/L	< 5
Total Coliforms	0 Compliant	0 Compliant	MPN/100ml	< 0
Total Dissolved Solids	38.789474 Good	75.285714 Good	mg/L	< 600
Trihalomethanes	0.04 Good	0.027556 Good	mg/L	< 0.25
Turbidity	0.481092 Good	0.310575 Good	NTU	< 5
Zinc	0.004 Measured	0.004056 Measured	mg/L	No limit

Explore further

Bonnet Hill

Opossum Bay

Disclaimer: This comparison is for general informational purposes only and does not constitute medical advice or professional guidance. Data is sourced from TasWater. Values shown are based on the most recent published water quality reports and may not reflect real-time conditions at your tap. Water quality can vary due to local plumbing, seasonal changes, and other factors. For specific health concerns, consult a qualified health professional or contact your local water utility. See our Terms of Use.