Mount Compass vs Willunga South

Name: Water Quality Comparison: Mount Compass vs Willunga South
Creator: WaterScore
License: https://creativecommons.org/licenses/by/4.0/

Side-by-side tap water quality comparison

Willunga South, SA

8.6

Quality Score

Supplied by SA Water

Share this page Twitter Facebook LinkedIn

Which suburb has better water?

Mount Compass has better water quality with a score of 9.1/10 compared to Willunga South's 8.6/10. Mount Compass has softer water (56 vs 136 mg/L).

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

As an Amazon Associate, WaterScore earns from qualifying purchases. We may also earn from other affiliate links on this page — this doesn't affect our recommendations.

Recommended for this suburb

Chlorine in Mount Compass is 1.2 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.

BRITAOur pick

Marella 2.4L Fridge Water Filter Jug (Maxtra+)

4.7 · 16,095 ratings on Amazon

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.

Kill the taste →

Sponsored Amazon link · we may earn a commission at no cost to you. Check Amazon for current price and availability.

Visual comparison

Mount Compass, SA

Willunga South, SA

Key metrics comparison

Hardness (mg/L)

Mount Compass

56 Lower

Willunga South

136 Higher

pH Level

Mount Compass

0.05 Outside range

Willunga South

8.6 Outside range

Fluoride (mg/L)

Mount Compass

0.2 Lower

Willunga South

0.7 Higher

Chlorine (mg/L)

Mount Compass

1.2 Higher

Willunga South

0.1 Lower

Full water quality comparison

All parameters compared against Australian Drinking Water Guidelines (ADWG)

Parameter	Mount Compass	Willunga South	Unit	ADWG Guideline
Alkalinity	108 Measured	76 Measured	mg/L	No limit
Aluminium	0.005 Good	0.051 Good	mg/L	< 0.2
Calcium	11.79 Measured	28.7 Measured	mg/L	No limit
Chloride	57 Good	156 Good	mg/L	< 250
Colour	1 Good	2 Good	HU	< 15
Copper	0.0106 Good	0.0111 Good	mg/L	< 2
E. coli	0 Compliant	—	cfu/100mL	< 0
Fluoride	0.2 Good	0.7 Good	mg/L	< 1.5
Free Chlorine	1.2 Good	0.1 Good	mg/L	< 5
Hardness	56 Good	136 Good	PPM or mg/L	< 200
Iron	0.0025 Good	0.0026 Good	mg/L	< 0.3
Lead	0.0006 Good	0.0002 Good	mg/L	< 0.01
Magnesium	6.29 Measured	15.5 Measured	mg/L	No limit
Manganese	0.001 Good	0.0014 Good	mg/L	< 0.1
Nitrate	0.48 Good	0.93 Good	mg/L	< 50
pH	0.05 Outside range	8.6 Outside range	µg/L	6.5 – 8.5
Sodium	62.4 Good	106.4 Good	mg/L	< 180
Sulfate	8.6 Good	70.1 Good	mg/L	< 500
Total Chlorine	1.3 Good	2.8 Good	mg/L	< 5
Total Dissolved Solids	242 Good	468 Good	mg/L	< 600
Turbidity	0.1 Good	0.1 Good	NTU	< 5

Explore further

Mount Compass

Willunga South

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.