Narrogin
Great Southern Region · Western Australia · Reporting period 2023-2024
The verdict
Narrogin's water is much softer and much purer than most other localities in the Great Southern Region.
At a glance
Position within the Great Southern Region
Purity
By-products & nitrate
Purer than 86% of Great Southern Region supplies
Clarity
Turbidity, colour, metals
About average for the Great Southern Region
Taste
Sodium, chloride, TDS
Fresher than 72% of Great Southern Region supplies
Hardness
Calcium & magnesium
Softer than 88% of Great Southern Region supplies
pH balance
How close to neutral (7.0)
About average for the Great Southern Region
Full readings
Typical (mean) value at Narrogin versus the Great Southern Region average.
Purity & health
| Parameter | Narrogin | Region avg | Unit |
|---|---|---|---|
| Trihalomethanes (THMs) | 0.04 | 0.07 | mg/L |
Clarity & appearance
| Parameter | Narrogin | Region avg | Unit |
|---|---|---|---|
| Turbidity | 0.50 | 0.53 | NTU |
| True colour | 2.0 | 2.4 | TCU |
| Aluminium | 0.01 | 0.02 | mg/L |
| Iron | 0.11 | 0.10 | mg/L |
| Manganese | 0.01 | 0.01 | mg/L |
Taste & saltiness
| Parameter | Narrogin | Region avg | Unit |
|---|---|---|---|
| Sodium | 39.8 | 58.9 | mg/L |
| Chloride | 83.0 | 111 | mg/L |
| Total Dissolved Solids (TDS) | 164 | 324 | mg/L |
| Sulphate | 11.0 | 16.7 | mg/L |
Hardness & scale
| Parameter | Narrogin | Region avg | Unit |
|---|---|---|---|
| Hardness | 37.0 | 101 | mg/L |
| Alkalinity | 7.0 | 70.2 | mg/L |
| Silica | 3.0 | 8.3 | mg/L |
pH balance
| Parameter | Narrogin | Region avg | Unit |
|---|---|---|---|
| pH | 7.0 | 7.7 | pH units |
Compare nearby
All of Great Southern 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 Great Southern 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.