Water hardness & quality in Dongara & Port Denison
6525 · Mid West Region · Reporting period 2023-2024
Reported by Water Corporation as the “Dongara/Denison” supply.
The verdict
Dongara & Port Denison's water is purer — though it runs saltier and further from neutral pH than most of its 50 neighbours.
Water hardness
Hard120mg/L
Noticeable scale on kettles, taps and hot water systems. Regular descaling helps, and some homes add a softener.
Measured at the Dongara & Port Denison supply.
ADWG aesthetic guideline: 200 mg/L. Hardness affects scale and taste, not safety.
Compare water hardness across WA →At a glance
Position within the Mid West Region
Purity
By-products & nitrate
Purer than 68% of Mid West Region supplies
Clarity
Turbidity, colour, metals
About average for the Mid West Region
Taste
Sodium, chloride, TDS
Saltier than 82% 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 68% of Mid West Region supplies
Full readings
Typical (mean) value at Dongara & Port Denison versus the Mid West Region average.
Purity & health
| Parameter | Dongara & Port Denison | Region avg | Unit |
|---|---|---|---|
| Trihalomethanes (THMs) | 0.01 | 0.02 | mg/L |
| Nitrate | 2.6 | 11.4 | mg/L |
Clarity & appearance
| Parameter | Dongara & Port Denison | Region avg | Unit |
|---|---|---|---|
| Turbidity | 0.50 | 0.29 | NTU |
| Iron | 0.02 | 0.03 | mg/L |
Taste & saltiness
| Parameter | Dongara & Port Denison | Region avg | Unit |
|---|---|---|---|
| SodiumAbove ADWG | 250 | 165 | mg/L |
| ChlorideAbove ADWG | 400 | 275 | mg/L |
| Total Dissolved Solids (TDS)Above ADWG | 854 | 671 | mg/L |
| Sulphate | 55.0 | 35.5 | mg/L |
Hardness & scale
| Parameter | Dongara & Port Denison | Region avg | Unit |
|---|---|---|---|
| Hardness | 120 | 134 | mg/L |
| Alkalinity | 65.0 | 88.0 | mg/L |
| Silica | 23.0 | 30.0 | mg/L |
pH balance
| Parameter | Dongara & Port Denison | Region avg | Unit |
|---|---|---|---|
| pH | 7.0 | 7.5 | pH units |
Compare nearby
All of Mid West Region →Common questions
Is the tap water in Dongara & Port Denison safe to drink?
In the 2023-2024 reporting year, Dongara & Port Denison's supply met the NHMRC Australian Drinking Water Guidelines health limits for every parameter with published data.
How hard is the water in Dongara & Port Denison?
Dongara & Port Denison's water averages 120 mg/L of hardness (as calcium carbonate), which is hard. That's about average for the Mid West Region. Noticeable scale on kettles, taps and hot water systems. Regular descaling helps, and some homes add a softener.
Is Dongara & Port Denison's water fluoridated?
Yes — Water Corporation fluoridates the Dongara & Port Denison supply. Fluoride averaged 0.79 mg/L in 2023-2024, within the ADWG limit of 1.5 mg/L.
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.