Hills Direct
Perth Region · Western Australia · Reporting period 2023-2024
The verdict
Hills Direct's water is much closer to neutral pH and much softer than most other localities in the Perth Region.
At a glance
Position within the Perth Region
Purity
By-products & nitrate
Purer than 78% of Perth Region supplies
Clarity
Turbidity, colour, metals
About average for the Perth Region
Taste
Sodium, chloride, TDS
Fresher than 83% of Perth Region supplies
Hardness
Calcium & magnesium
Softer than 91% of Perth Region supplies
pH balance
How close to neutral (7.0)
More neutral than 96% of Perth Region supplies
Full readings
Typical (mean) value at Hills Direct versus the Perth Region average.
Purity & health
| Parameter | Hills Direct | Region avg | Unit |
|---|---|---|---|
| Trihalomethanes (THMs) | 0.03 | 0.07 | mg/L |
Clarity & appearance
| Parameter | Hills Direct | Region avg | Unit |
|---|---|---|---|
| Turbidity | 0.30 | 0.28 | NTU |
| Aluminium | 0.01 | 0.01 | mg/L |
| Iron | 0.04 | 0.03 | mg/L |
| Manganese | 0.00 | 0.01 | mg/L |
Taste & saltiness
| Parameter | Hills Direct | Region avg | Unit |
|---|---|---|---|
| Sodium | 40.0 | 85.0 | mg/L |
| Chloride | 75.0 | 142 | mg/L |
| Total Dissolved Solids (TDS) | 183 | 400 | mg/L |
| Sulphate | 7.0 | 19.4 | mg/L |
Hardness & scale
| Parameter | Hills Direct | Region avg | Unit |
|---|---|---|---|
| Hardness | 46.0 | 95.7 | mg/L |
| Alkalinity | 31.0 | 83.8 | mg/L |
| Silica | 1.7 | 8.9 | mg/L |
pH balance
| Parameter | Hills Direct | Region avg | Unit |
|---|---|---|---|
| pH | 7.5 | 7.8 | pH units |
Compare nearby
All of Perth Region →Suburbs near Hills Direct
These suburbs aren't individually tested — Hills Direct 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.