Coorow vs Winchester

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

Side-by-side tap water quality comparison

Coorow, WA

8.5

Quality Score

Supplied by Water Corporation

Winchester, WA

8.5

Quality Score

Supplied by Water Corporation

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Which suburb has better water?

It's very close! Coorow scores 8.5/10 and Winchester scores 8.5/10. Both suburbs have similar water quality based on ADWG compliance data.

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Recommended for this suburb

TDS in Coorow is 858 mg/L — above the 600 mg/L guideline. That's a lot of dissolved mineral passing your lips.

TDS is the total of every salt, metal and mineral dissolved in your water. At this level, water tastes flat or mildly salty, kettles descale constantly, and skin/hair feels rougher after a shower. Standard carbon filters won't move this number — they're designed for taste and chlorine, not dissolved solids. This is the one water issue where you genuinely need RO; no other consumer filter gets close.

iSpringOur pick

RCC7AK 6-Stage Under-Sink RO (with Alkaline Re-min)

4.6 · 13,756 ratings on Amazon

Reverse osmosis pushes water through a sub-micron membrane that blocks 90–99% of dissolved solids. The water that comes out the other side reads 50–100 mg/L — drinking-water-plant territory. Installs under the sink, with its own tap above the bench.

Drop the TDS →

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Visual comparison

Coorow, WA

Winchester, WA

Key metrics comparison

Hardness (mg/L)

Coorow

120 Same

Winchester

120 Same

pH Level

Coorow

7.76 Normal

Winchester

7.76 Normal

Fluoride (mg/L)

Coorow

0.78 Same

Winchester

0.78 Same

Chlorine (mg/L)

Coorow

—

Winchester

—

Full water quality comparison

All parameters compared against Australian Drinking Water Guidelines (ADWG)

Parameter	Coorow	Winchester	Unit	ADWG Guideline
Alkalinity	63.3 Measured	63.3 Measured	mg/L CaCO3	No limit
Aluminium	0.013 Good	0.013 Good	mg/L	< 0.2
Chloride	400 Exceeds	400 Exceeds	mg/L	< 250
Colour	1 Good	1 Good	HU	< 15
Fluoride	0.78 Good	0.78 Good	mg/L	< 1.5
Hardness	120 Good	120 Good	mg/L CaCO3	< 200
Iron	0.107 Good	0.107 Good	mg/L	< 0.3
Manganese	0.005 Good	0.005 Good	mg/L	< 0.1
Nitrate	2.6 Good	2.6 Good	mg/L	< 50
pH	7.76 Normal	7.76 Normal	pH units	6.5 – 8.5
Sodium	253 Exceeds	253 Exceeds	mg/L	< 180
Sulfate	57 Good	57 Good	mg/L	< 500
Total Dissolved Solids	858 Exceeds	858 Exceeds	mg/L	< 600
Trihalomethanes	0.038 Good	0.038 Good	mg/L	< 0.25
Turbidity	0.1 Good	0.1 Good	NTU	< 5

Explore further

Coorow

Winchester

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