Mundaring
Perth Region · Western Australia · Reporting period 2023-2024
The verdict
Mundaring's water is much clearer and much purer — though it runs much further from neutral pH and saltier than most of its 27 neighbours.
At a glance
Position within the Perth Region
Purity
By-products & nitrate
Purer than 93% of Perth Region supplies
Clarity
Turbidity, colour, metals
Clearer than 98% of Perth Region supplies
Taste
Sodium, chloride, TDS
Saltier than 81% of Perth Region supplies
Hardness
Calcium & magnesium
About average for the Perth Region
pH balance
How close to neutral (7.0)
Further from neutral than 96% of Perth Region supplies
Full readings
Typical (mean) value at Mundaring versus the Perth Region average.
Purity & health
| Parameter | Mundaring | Region avg | Unit |
|---|---|---|---|
| Trihalomethanes (THMs) | 0.03 | 0.07 | mg/L |
| Nitrate | 0.40 | 2.3 | mg/L |
Clarity & appearance
| Parameter | Mundaring | Region avg | Unit |
|---|---|---|---|
| Aluminium | 0.01 | 0.01 | mg/L |
| Iron | 0.01 | 0.03 | mg/L |
Taste & saltiness
| Parameter | Mundaring | Region avg | Unit |
|---|---|---|---|
| Sodium | 113 | 85.0 | mg/L |
| Chloride | 203 | 142 | mg/L |
| Total Dissolved Solids (TDS) | 467 | 400 | mg/L |
| Sulphate | 30.0 | 19.4 | mg/L |
Hardness & scale
| Parameter | Mundaring | Region avg | Unit |
|---|---|---|---|
| Hardness | 98.0 | 95.7 | mg/L |
| Alkalinity | 64.0 | 83.8 | mg/L |
| Silica | 5.2 | 8.9 | mg/L |
pH balance
| Parameter | Mundaring | Region avg | Unit |
|---|---|---|---|
| pHAbove ADWG | 8.4 | 7.8 | pH units |
Compare nearby
All of Perth Region →Suburbs near Mundaring
These suburbs aren't individually tested — Mundaring is their closest monitored supply point.
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 Perth 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.