Altnahinch Bushmills: supplier water report
This is a report for the named source area. Check your postcode before assuming it describes the water serving your address.
Northern Ireland Water · Supply area: Altnahinch Bushmills
Published water hardness
87.54mg/l as CaCO₃
Soft
Hardness reporting period: 2025
8 samples
This result describes dissolved minerals. Use your appliance manual for settings and care instructions. Hardness is not a health or safety score.
0.88 mmol/l
A conversion of the published hardness, not another test. Follow your appliance’s model-specific instructions.
Has the hardness changed?
History for this reported source area. Only comparable annual statistics appear in the chart; rolling summaries are kept separate. These are not daily tests at your address.
Scroll the chart sideways on smaller screens, or read the values below. Vertical axis: hardness in mg/l as CaCO₃. Bars show annual means.
| Period | Mean | Sample range | Samples |
|---|---|---|---|
| 2023 | 96.29 | —–— | 8 |
| 2024 | 80.95 | —–— | 8 |
| 2025 | 87.54 | —–— | 8 |
Historical figures come from retained source copies. Supplier links may now open a newer edition. Ranges describe the samples reported, not confidence intervals. A short annual series supports a comparison; it does not establish a sustained trend or a change at your tap.
Inside the supplier report
Period: 2025. Summary values do not establish that every sample complied. Read the supplier’s notes for investigations and actions.
Hardness and minerals 3 parameters
Useful for understanding mineral composition and appliance settings. Different minerals are separate measurements; hardness does not determine them all.
Total hardness87.54 mg/l as CaCO₃
Source parameter: Total hardness. Published mean: 87.54 mg/l as CaCO₃.
Samples: 8. Range: not published to not published.
Compliance counts are not retained for this entry. Check the original report.
Calcium28.25 mg/l
Source parameter: Calcium. Published mean: 28.25 mg/l.
Samples: 8. Range: not published to not published.
Compliance counts are not retained for this entry. Check the original report.
Magnesium4.06 mg/l
Source parameter: Magnesium. Published mean: 4.06 mg/l.
Samples: 8. Range: not published to not published.
Compliance counts are not retained for this entry. Check the original report.
Other monitored substances 1 parameters
The source names are retained so you can find the same entry in the original report. A less-than symbol means the reported number is not an exact concentration.
Potassium0.44 mg/l
Source parameter: Potassium. Published mean: 0.44 mg/l.
Samples: 8. Range: not published to not published.
Compliance counts are not retained for this entry. Check the original report.
Unlisted parameters are not necessarily absent from the water. They may be unavailable in this extraction. The full supplier report remains the primary reference.
Source, dates and help
- Reporting period
- 2025
- Source retrieved
- 2026-09-06
- Last verified source check
- 2026-09-06
- Original source
- Northern Ireland Water report
NI Water publishes these annual water-supply-zone values under the Open Government Licence v3.0.
This extraction covers the hardness/mineral table, not the full water-quality register. Missing substances are not zero.
History follows the source zone code. Supply arrangements and zone names may change; a past zone result is not proof of the historical supply to your address.
WaterGrade uses the DWI hardness categories consistently; NI Water uses additional soft-water categories. Use your own appliance manual rather than the generic setting in the source table.
How we handle the data · Report a correction · Official supplier help and updates
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