Dungannon Water Hardness & Quality Report (2026)
Water Hardness
~200–300 mg/L
Hardestimated · not lab-verified
Source
reservoir
pH Level
8.2
neutral = 7.0
Lead
0.001 mg/L
✓ Below action level
TDS
373.5 mg/L
Est. Daily Cost
£0.57
energy & soap waste
Source: DWI Data Portal · Updated 2026
0–99
mg/L
Soft
100–149
mg/L
Slightly Hard
150–199
mg/L
Moderately Hard
200–300
mg/L
Hard
300+
mg/L
Very Hard
Appliance Damage Report
In Dungannon, your appliances are currently losing 33% efficiency due to mineral buildup.
| Appliance | In Dungannon | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 5.7 yrs | 8.5 yrs | -33% |
| Washing Machine | 8 yrs | 12 yrs | -33% |
| Water Heater | 10 yrs | 15 yrs | -33% |
Regional Water Comparison
How Dungannon compares to its nearest neighbours
| City | Hardness | Clark° | Risk | Source |
|---|---|---|---|---|
| ▶ Dungannon, Northern Ireland | ≈ 200–300 mg/L | 17.5° | 🟠 Hard | reservoir |
| Cookstown, Northern Ireland | ≈ 0–100 mg/L | 3.5° | 🟢 Soft | reservoir |
| Armagh, Northern Ireland | ≈ 200–300 mg/L | 11.1° | 🟠 Hard | reservoir |
| Portadown, Northern Ireland | ≈ 0–100 mg/L | 5.6° | 🟢 Soft | reservoir |
| Craigavon, Northern Ireland | ≈ 0–100 mg/L | 9.1° | 🟢 Soft | reservoir |
National Benchmark
How Dungannon compares to the United Kingdom average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Dungannon | ≈ 200–300 mg/L | 🟠 High |
| United Kingdom National Avg | 177 mg/L | 🟡 Moderate |
| Skipton Top Rated | 7.1 mg/L | 🟢 None |
Bring Skipton-quality water to your Dungannon home
Shop water softeners on Amazon.co.uk →
What Makes Dungannon's Water Unique?
Local geology and source profile
The water supply for Dungannon originates from NI Water’s Killylane Reservoir, situated within the County Antrim upland catchment area. After collection, the raw water is transported to the Killylane Water Treatment Works for processing. From there, it is distributed to the residents of Dungannon, providing their daily drinking water.
This supply is drawn from County Antrim’s upland catchment, characterized by a geology dominated by igneous and metamorphic rock formations. These ancient rocks contribute minerals to the water as it flows through the landscape. The interaction with these geological materials results in water that is classified as slightly hard, registering at 6.8°Clark.
For homeowners in Dungannon, this slightly hard water means you might notice some buildup over time, particularly in appliances like kettles and water heaters. While not excessively hard, it can affect the efficiency of your washing machine and dishwasher. Using slightly less detergent or soap can help compensate. Regular descaling of appliances will also help maintain their performance and extend their lifespan.
Geology & Source: NI Water Killylane Reservoir County Antrim; igneous and metamorphic rocks produce slightly hard water
Other Northern Ireland Water Reports
Report an Issue
Notice an error or missing data? Help us keep this page accurate. If you spot incorrect water hardness, outdated utility info, or missing details, please let us know.
All reports are reviewed by our team. Thank you for supporting data quality!