Clay Wells vs Thornlea

Name: Water Quality Comparison: Clay Wells vs Thornlea
Creator: WaterScore
License: https://creativecommons.org/licenses/by/4.0/

Side-by-side tap water quality comparison

Thornlea, SA

8.8

Quality Score

Supplied by SA Water

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Which suburb has better water?

It's very close! Clay Wells scores 8.8/10 and Thornlea scores 8.8/10. Both suburbs have similar water quality based on ADWG compliance data.

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Recommended for this suburb

Clay Wells's tap water is 'very hard' at 257 mg/L — and scale is building up in your home right now.

Every time you boil a kettle or run the hot tap, calcium is baking onto heating elements. Hot water systems, dishwashers, coffee machines, shower screens and glassware all take the same damage. "Descaler tablets" treat the symptom; they don't stop the mineral from entering your home in the first place.

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Visual comparison

Clay Wells, SA

Thornlea, SA

Key metrics comparison

Hardness (mg/L)

Clay Wells

257 Same

Thornlea

257 Same

pH Level

Clay Wells

0.05 Outside range

Thornlea

0.05 Outside range

Fluoride (mg/L)

Clay Wells

0.2 Same

Thornlea

0.2 Same

Chlorine (mg/L)

Clay Wells

1 Same

Thornlea

1 Same

Full water quality comparison

All parameters compared against Australian Drinking Water Guidelines (ADWG)

Parameter	Clay Wells	Thornlea	Unit	ADWG Guideline
Alkalinity	325 Measured	325 Measured	mg/L	No limit
Aluminium	0.002 Good	0.002 Good	mg/L	< 0.2
Calcium	75.2 Measured	75.2 Measured	mg/L	No limit
Chloride	171 Good	171 Good	mg/L	< 250
Colour	1 Good	1 Good	HU	< 15
Copper	0.0521 Good	0.0521 Good	mg/L	< 2
E. coli	0 Compliant	0 Compliant	cfu/100mL	< 0
Fluoride	0.2 Good	0.2 Good	mg/L	< 1.5
Free Chlorine	1 Good	1 Good	mg/L	< 5
Hardness	257 Exceeds	257 Exceeds	PPM or mg/L	< 200
Iron	0.0629 Good	0.0629 Good	mg/L	< 0.3
Lead	0.0022 Good	0.0022 Good	mg/L	< 0.01
Magnesium	16.9 Measured	16.9 Measured	mg/L	No limit
Manganese	0.001 Good	0.001 Good	mg/L	< 0.1
Nitrate	0.07 Good	0.07 Good	mg/L	< 50
pH	0.05 Outside range	0.05 Outside range	µg/L	6.5 – 8.5
Sodium	123 Good	123 Good	mg/L	< 180
Sulfate	21.9 Good	21.9 Good	mg/L	< 500
Total Chlorine	0.8 Good	0.8 Good	mg/L	< 5
Total Dissolved Solids	674 Exceeds	674 Exceeds	mg/L	< 600
Turbidity	0.1 Good	0.1 Good	NTU	< 5

Explore further

Clay Wells

Thornlea

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