Water hardness & quality in Nilgen
6044 · Mid West Region · Reporting period 2023-2024
Reported by Water Corporation as the “Nilgen (Ocean Farms)” supply.
The verdict
Nilgen's water is fresher than most other localities in the Mid West Region.
Water hardness
Very hard205mg/L
Heavy scale on fixtures and appliances, and harder on hot water systems. Softeners and filters are common.
Measured at the Nilgen 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
About average for the Mid West Region
Taste
Sodium, chloride, TDS
Fresher than 84% of Mid West Region supplies
Hardness
Calcium & magnesium
About average for the Mid West Region
pH balance
How close to neutral (7.0)
About average for the Mid West Region
Full readings
Typical (mean) value at Nilgen versus the Mid West Region average.
Purity & health
| Parameter | Nilgen | Region avg | Unit |
|---|---|---|---|
| Trihalomethanes (THMs) | 0.00 | 0.02 | mg/L |
| Nitrate | 24.2 | 11.4 | mg/L |
Taste & saltiness
| Parameter | Nilgen | Region avg | Unit |
|---|---|---|---|
| Sodium | 72.0 | 165 | mg/L |
| Chloride | 110 | 275 | mg/L |
| Total Dissolved Solids (TDS)Above ADWG | 559 | 671 | mg/L |
| Sulphate | 16.0 | 35.5 | mg/L |
Hardness & scale
| Parameter | Nilgen | Region avg | Unit |
|---|---|---|---|
| HardnessAbove ADWG | 205 | 134 | mg/L |
| Alkalinity | 195 | 88.0 | mg/L |
| Silica | 17.0 | 30.0 | mg/L |
pH balance
| Parameter | Nilgen | Region avg | Unit |
|---|---|---|---|
| pH | 7.8 | 7.5 | pH units |
Compare nearby
All of Mid West Region →Common questions
Is the tap water in Nilgen safe to drink?
In the 2023-2024 reporting year, Nilgen's supply met the NHMRC Australian Drinking Water Guidelines health limits for every parameter with published data.
How hard is the water in Nilgen?
Nilgen's water averages 205 mg/L of hardness (as calcium carbonate), which is very hard. That's about average for the Mid West Region. Heavy scale on fixtures and appliances, and harder on hot water systems. Softeners and filters are common.
Is Nilgen's water fluoridated?
No — the Nilgen supply isn't fluoridated.
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.