Mortana vs Oak Valley

Name: Water Quality Comparison: Mortana vs Oak Valley
Creator: WaterScore
License: https://creativecommons.org/licenses/by/4.0/

Side-by-side tap water quality comparison

Oak Valley, SA

9.8

Quality Score

Supplied by SA Water

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Which suburb has better water?

Oak Valley has better water quality with a score of 9.8/10 compared to Mortana's 9.3/10. Oak Valley has softer water (7 vs 194 mg/L).

Based on ADWG compliance across all measured parameters. Both suburbs receive treated, safe drinking water.

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Recommended for this suburb

Mortana's water is hard at 194 mg/L — you're cleaning scale off things that shouldn't need cleaning.

At this level, you'll see white rings inside the kettle, cloudy spots on glassware, and shampoo that never lathers properly. Over 5–10 years, scale slowly kills heating elements in your hot water system and dishwasher — the damage is invisible until they fail 2–3 years early. Boiling doesn't help; it concentrates the minerals.

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An under-sink reverse-osmosis tap gives you clean, soft drinking water without re-plumbing the whole house. The kettle stops scaling. Tea tastes like tea. No more bottled water runs. Fits on standard 15mm pipework, installs in a Saturday.

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Visual comparison

Mortana, SA

Oak Valley, SA

Key metrics comparison

Hardness (mg/L)

Mortana

194 Higher

Oak Valley

7 Lower

pH Level

Mortana

—

Oak Valley

7.3 Normal

Fluoride (mg/L)

Mortana

0.5 Higher

Oak Valley

0.1 Lower

Chlorine (mg/L)

Mortana

1.1

Oak Valley

—

Full water quality comparison

All parameters compared against Australian Drinking Water Guidelines (ADWG)

Parameter	Mortana	Oak Valley	Unit	ADWG Guideline
Alkalinity	158 Measured	12 Measured	mg/L	No limit
Aluminium	0.012 Good	0.002 Good	mg/L	< 0.2
Calcium	52.6 Measured	2.43 Measured	mg/L	No limit
Chloride	132 Good	5 Good	mg/L	< 250
Colour	1 Good	1 Good	HU	< 15
Copper	0.0076 Good	0.4811 Good	mg/L	< 2
E. coli	0 Compliant	0 Compliant	cfu/100mL	< 0
Fluoride	0.5 Good	0.1 Good	mg/L	< 1.5
Free Chlorine	1.1 Good	—	mg/L	< 5
Hardness	194 Near limit	7 Good	PPM or mg/L	< 200
Iron	0.007 Good	0.0043 Good	mg/L	< 0.3
Lead	0.0003 Good	0.0025 Good	mg/L	< 0.01
Magnesium	15.1 Measured	0.29 Measured	mg/L	No limit
Manganese	0.0015 Good	0.0027 Good	mg/L	< 0.1
Nitrate	10.35 Good	3.57 Good	mg/L	< 50
pH	—	7.3 Normal	pH units	6.5 – 8.5
Sodium	79.6 Good	3.3 Good	mg/L	< 180
Sulfate	33.6 Good	1 Good	mg/L	< 500
Total Chlorine	1.1 Good	—	mg/L	< 5
Total Dissolved Solids	461 Good	25 Good	mg/L	< 600
Turbidity	0.12 Good	0.13 Good	NTU	< 5

Explore further

Mortana

Oak Valley

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.