Douglas River vs Four Mile Creek

Name: Water Quality Comparison: Douglas River vs Four Mile Creek
Creator: WaterScore
License: https://creativecommons.org/licenses/by/4.0/

Side-by-side tap water quality comparison

Four Mile Creek, TAS

9.7

Quality Score

Supplied by TasWater

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Which suburb has better water?

It's very close! Douglas River scores 9.5/10 and Four Mile Creek scores 9.7/10. Both suburbs have similar water quality based on ADWG compliance data.

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Recommended for this suburb

Chlorine in Four Mile Creek is 0.911111 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

Douglas River, TAS

Four Mile Creek, TAS

Key metrics comparison

Hardness (mg/L)

Douglas River

153.333333 Higher

Four Mile Creek

23.333333 Lower

pH Level

Douglas River

7.10697 Normal

Four Mile Creek

7.243737 Normal

Fluoride (mg/L)

Douglas River

0.943333 Higher

Four Mile Creek

0.883333 Lower

Chlorine (mg/L)

Douglas River

0.792576 Lower

Four Mile Creek

0.911111 Higher

Full water quality comparison

All parameters compared against Australian Drinking Water Guidelines (ADWG)

Parameter	Douglas River	Four Mile Creek	Unit	ADWG Guideline
Alkalinity	146.666667 Measured	14.416667 Measured	mg/L	No limit
Aluminium	0.01 Good	0.01 Good	mg/L	< 0.2
Ammonia	0.002 Measured	0.002 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	55.5 Measured	4.65 Measured	mg/L	No limit
Chloride	33 Good	30.5 Good	mg/L	< 250
Chromium	0.001 Measured	0.001 Measured	mg/L	No limit
Colour	2.166667 Good	2.25 Good	Pt-Co	< 15
Conductivity	411.666667 Measured	140 Measured	uS/cm	No limit
Copper	0.0115 Good	0.013125 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	0.943333 Good	0.883333 Good	mg/L	< 1.5
Free Chlorine	0.792576 Good	0.911111 Good	mg/L	< 5
Hardness	153.333333 Good	23.333333 Good	mg/L	< 200
Iron	0.0275 Good	0.01375 Good	mg/L	< 0.3
Lead	0.001 Good	0.001 Good	mg/L	< 0.01
Magnesium	4.95 Measured	3.275 Measured	mg/L	No limit
Manganese	0.00325 Good	0.001875 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	0.007333 Good	0.191417 Good	mg/L	< 50
Nitrite	0.002 Measured	0.002 Measured	mg/L	No limit
pH	7.10697 Normal	7.243737 Normal	pH units	6.5 – 8.5
Sodium	17 Good	16 Good	mg/L	< 180
Sulfate	14.333333 Good	3 Good	mg/L	< 500
Temperature	13.442424 Measured	15.135354 Measured	degrees C	No limit
Total Chlorine	1 Good	1.170833 Good	mg/L	< 5
Total Coliforms	0 Compliant	0 Compliant	MPN/100ml	< 0
Total Dissolved Solids	231.666667 Good	93.833333 Good	mg/L	< 600
Trihalomethanes	0.0115 Good	0.02275 Good	mg/L	< 0.25
Turbidity	0.57303 Good	0.365051 Good	NTU	< 5
Zinc	0.0045 Measured	0.007 Measured	mg/L	No limit

Explore further

Douglas River

Four Mile Creek

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.