Coorow
Mid West Region · Western Australia · Reporting period 2023-2024
The verdict
Coorow's water is clearer and purer — though it runs further from neutral pH and saltier than most of its 50 neighbours.
At a glance
Position within the Mid West Region
Purity
By-products & nitrate
Purer than 67% of Mid West Region supplies
Clarity
Turbidity, colour, metals
Clearer than 69% of Mid West Region supplies
Taste
Sodium, chloride, TDS
Saltier than 78% of Mid West Region supplies
Hardness
Calcium & magnesium
About average for the Mid West Region
pH balance
How close to neutral (7.0)
Further from neutral than 84% of Mid West Region supplies
Full readings
Typical (mean) value at Coorow versus the Mid West Region average.
Purity & health
| Parameter | Coorow | Region avg | Unit |
|---|---|---|---|
| Trihalomethanes (THMs) | 0.01 | 0.02 | mg/L |
| Nitrate | 1.3 | 11.4 | mg/L |
Clarity & appearance
| Parameter | Coorow | Region avg | Unit |
|---|---|---|---|
| Iron | 0.02 | 0.03 | mg/L |
Taste & saltiness
| Parameter | Coorow | Region avg | Unit |
|---|---|---|---|
| SodiumAbove ADWG | 240 | 165 | mg/L |
| ChlorideAbove ADWG | 426 | 275 | mg/L |
| Total Dissolved Solids (TDS)Above ADWG | 807 | 671 | mg/L |
| Sulphate | 50.0 | 35.5 | mg/L |
Hardness & scale
| Parameter | Coorow | Region avg | Unit |
|---|---|---|---|
| Hardness | 128 | 134 | mg/L |
| Alkalinity | 13.0 | 88.0 | mg/L |
| Silica | 29.0 | 30.0 | mg/L |
pH balance
| Parameter | Coorow | Region avg | Unit |
|---|---|---|---|
| pH | 6.8 | 7.5 | pH units |
Compare nearby
All of Mid West Region →Data & methodology
Data source: Water Corporation of WA Drinking Water Quality Annual Report 2023-2024.
Regional ranking: Each measured parameter is ranked against every other locality in the Mid West Region using the typical (mean) reading. Lower readings rank better, except pH where the score is distance from neutral (7).
ADWG safety check: Every reading is independently checked against the NHMRC Australian Drinking Water Guidelines; any value above the limit is flagged regardless of how it compares to neighbours.