Capalaba vs Karratha

Name: Water Quality Comparison: Capalaba vs Karratha
Creator: WaterScore
License: https://creativecommons.org/licenses/by/4.0/

Side-by-side tap water quality comparison

Karratha, WA

9.6

Quality Score

Supplied by Water Corporation

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Which suburb has better water?

It's very close! Capalaba scores 9.5/10 and Karratha scores 9.6/10. Both suburbs have similar water quality based on ADWG compliance data.

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Recommended for this suburb

Chlorine in Capalaba is 1.3 mg/L — that's high. It's why your tap water smells like a pool.

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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A BRITA Marella is the opposite: fast (2.4L, fills in under a minute), kid-friendly handle, fridge-door fit, replacement cartridges available everywhere in AU. Chlorine gone, taste clean, no plumber, no faff — this is the default answer for chlorine taste in Australia.

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Visual comparison

Capalaba, QLD

Karratha, WA

Key metrics comparison

Hardness (mg/L)

Capalaba

70.2 Higher

Karratha

54 Lower

pH Level

Capalaba

—

Karratha

7.85 Normal

Fluoride (mg/L)

Capalaba

0.85 Higher

Karratha

0.1 Lower

Chlorine (mg/L)

Capalaba

1.3

Karratha

—

Full water quality comparison

All parameters compared against Australian Drinking Water Guidelines (ADWG)

Parameter	Capalaba	Karratha	Unit	ADWG Guideline
Alkalinity	34.8 Measured	49 Measured	mg/L	No limit
Aluminium	0.042 Good	0.008 Good	mg/L	< 0.2
Arsenic	0.0005 Measured	—	mg/L	No limit
Cadmium	0.0001 Measured	—	mg/L	No limit
Calcium	19.3 Measured	—	mg/L	No limit
Chlorate	0.005 Measured	—	mg/L	No limit
Chloride	51.6 Good	42 Good	mg/L	< 250
Chromium	0.001 Measured	—	mg/L	No limit
Colour	1 Good	1 Good	HU	< 15
Conductivity	278.9 Measured	—	µS/cm	No limit
Copper	0.001 Good	—	mg/L	< 2
E. coli	0 Compliant	—	CFU/100mL	< 0
Fluoride	0.85 Good	0.1 Good	mg/L	< 1.5
Free Chlorine	1.3 Good	—	mg/L	< 5
Hardness	70.2 Good	54 Good	mg/L	< 200
Iron	0.02 Good	0.009 Good	mg/L	< 0.3
Lead	0.001 Good	—	mg/L	< 0.01
Magnesium	5.22 Measured	—	mg/L	No limit
Manganese	0.003 Good	0.005 Good	mg/L	< 0.1
Mercury	0.0001 Measured	—	mg/L	No limit
Ndma	0.003 Measured	—	µg/L	No limit
Nickel	0.001 Measured	—	mg/L	No limit
Nitrate	—	0.44 Good	mg/L	< 50
pH	—	7.85 Normal	pH units	6.5 – 8.5
Sodium	24.7 Good	21 Good	mg/L	< 180
Sulfate	—	0.15 Good	mg/L	< 500
Temperature	25.5 Measured	—	°C	No limit
Total Chlorine	1.3 Good	—	mg/L	< 5
Total Dissolved Solids	—	157 Good	mg/L	< 600
Trihalomethanes	0.07390000000000001 Good	0.052 Good	mg/L	< 0.25
Turbidity	0.4 Good	0.1 Good	NTU	< 5
Zinc	0.005 Measured	—	mg/L	No limit

Explore further

Capalaba

Karratha

Disclaimer: This comparison is for general informational purposes only and does not constitute medical advice or professional guidance. Data is sourced from Seqwater and Water Corporation. 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.