Derwent Park vs Risdon Vale

Name: Water Quality Comparison: Derwent Park vs Risdon Vale
Creator: WaterScore
License: https://creativecommons.org/licenses/by/4.0/

Side-by-side tap water quality comparison

Risdon Vale, TAS

9.8

Quality Score

Supplied by TasWater

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Which suburb has better water?

It's very close! Derwent Park scores 9.6/10 and Risdon Vale 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 Derwent Park is 0.866797 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

Derwent Park, TAS

Risdon Vale, TAS

Key metrics comparison

Hardness (mg/L)

Derwent Park

29.538462 Lower

Risdon Vale

46.285714 Higher

pH Level

Derwent Park

7.272285 Normal

Risdon Vale

7.414137 Normal

Fluoride (mg/L)

Derwent Park

0.92

Risdon Vale

—

Chlorine (mg/L)

Derwent Park

0.866797 Higher

Risdon Vale

0.829548 Lower

Full water quality comparison

All parameters compared against Australian Drinking Water Guidelines (ADWG)

Parameter	Derwent Park	Risdon Vale	Unit	ADWG Guideline
Alkalinity	13.071429 Measured	19.727273 Measured	mg/L	No limit
Aluminium	0.042 Good	0.033333 Good	mg/L	< 0.2
Ammonia	0.002286 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	9.08 Measured	16.666667 Measured	mg/L	No limit
Chloride	8.4 Good	10.111111 Good	mg/L	< 250
Chromium	0.001 Measured	0.001 Measured	mg/L	No limit
Colour	2.285714 Good	2.238095 Good	Pt-Co	< 15
Conductivity	93.785714 Measured	121.363636 Measured	uS/cm	No limit
Copper	0.0263 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	0.92 Good	—	mg/L	< 1.5
Free Chlorine	0.866797 Good	0.829548 Good	mg/L	< 5
Hardness	29.538462 Good	46.285714 Good	mg/L	< 200
Iron	0.017 Good	0.012222 Good	mg/L	< 0.3
Lead	0.001 Good	0.001 Good	mg/L	< 0.01
Magnesium	1.28 Measured	2.511111 Measured	mg/L	No limit
Manganese	0.0015 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	0.02895 Good	0.040409 Good	mg/L	< 50
Nitrite	0.002 Measured	0.002 Measured	mg/L	No limit
pH	7.272285 Normal	7.414137 Normal	pH units	6.5 – 8.5
Sodium	3.9 Good	4.333333 Good	mg/L	< 180
Sulfate	13.071429 Good	20 Good	mg/L	< 500
Temperature	13.452148 Measured	13.944521 Measured	degrees C	No limit
Total Chlorine	1.304615 Good	0.966842 Good	mg/L	< 5
Total Coliforms	0 Compliant	0 Compliant	MPN/100ml	< 0
Total Dissolved Solids	62.307692 Good	75.285714 Good	mg/L	< 600
Trihalomethanes	0.0256 Good	0.027556 Good	mg/L	< 0.25
Turbidity	0.378691 Good	0.310575 Good	NTU	< 5
Zinc	0.0024 Measured	0.004056 Measured	mg/L	No limit

Explore further

Derwent Park

Risdon Vale

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.