WaterCheck Ireland

Ballina Tap Water Quality

EPA monitoring records for Water Supply Zones mapped to Ballina contain 864 monitoring results across 69 parameters in 2025.

The separate EPA exceedance dataset contains no listed exceedance records for the mapped Water Supply Zones in 2025.

These are historical monitoring records and do not confirm the current status of water at a specific address. Current notices are maintained by Uisce Éireann.

Latest monitoring year
2025
Page updated
September 2026
Water Supply Zones
2
864Monitoring results
69Parameters tested
0EPA-listed exceedances
40Samples

Monitoring results apply to the Water Supply Zones as a whole and may include sampling locations outside Ballina.

Selected monitoring data

Key drinking water parameters

Parameters are shown when measurements are available. Text-only and censored values remain unchanged in the detailed history.

Lead

2025 median—
2025 maximum—
Measurements in 20256

0 EPA-listed exceedances in 2025.

View parameter history

Individual numeric measurements from 2021–2025. Text-only and censored results are retained in the history JSON and are not plotted as numbers.

Open this chart to load the measurements.

Numeric resultEPA-listed exceedance

1 numeric measurements available; 26 text-only records retained in JSON.

Nitrate

2025 median1.96
2025 maximum3.28
Measurements in 20256

0 EPA-listed exceedances in 2025.

View parameter history

Individual numeric measurements from 2021–2025. Text-only and censored results are retained in the history JSON and are not plotted as numbers.

Open this chart to load the measurements.

Numeric resultEPA-listed exceedance

7 numeric measurements available; 18 text-only records retained in JSON.

E. coli

2025 median0
2025 maximum0
Measurements in 202540

0 EPA-listed exceedances in 2025.

View parameter history

Individual numeric measurements from 2021–2025. Text-only and censored results are retained in the history JSON and are not plotted as numbers.

Open this chart to load the measurements.

Numeric resultEPA-listed exceedance

187 numeric measurements available; 0 text-only records retained in JSON.

Coliform Bacteria

2025 median0 100ml
2025 maximum0 100ml
Measurements in 202540

0 EPA-listed exceedances in 2025.

View parameter history

Individual numeric measurements from 2021–2025. Text-only and censored results are retained in the history JSON and are not plotted as numbers.

Open this chart to load the measurements.

Numeric resultEPA-listed exceedance

187 numeric measurements available; 0 text-only records retained in JSON.

Fluoride

2025 median0.7 mg/l
2025 maximum0.8 mg/l
Measurements in 20256

0 EPA-listed exceedances in 2025.

View parameter history

Individual numeric measurements from 2021–2025. Text-only and censored results are retained in the history JSON and are not plotted as numbers.

Open this chart to load the measurements.

Numeric resultEPA-listed exceedance

27 numeric measurements available; 0 text-only records retained in JSON.

Iron

2025 median15.5
2025 maximum24
Measurements in 202540

0 EPA-listed exceedances in 2025.

View parameter history

Individual numeric measurements from 2021–2025. Text-only and censored results are retained in the history JSON and are not plotted as numbers.

Open this chart to load the measurements.

Numeric resultEPA-listed exceedance

50 numeric measurements available; 137 text-only records retained in JSON.

Arsenic

2025 median3
2025 maximum3
Measurements in 20256

0 EPA-listed exceedances in 2025.

View parameter history

Individual numeric measurements from 2021–2025. Text-only and censored results are retained in the history JSON and are not plotted as numbers.

Open this chart to load the measurements.

Numeric resultEPA-listed exceedance

5 numeric measurements available; 22 text-only records retained in JSON.

2025864 results · 0 listed exceedances
Total results — independent scale
0 432 864 796 2021 686 2022 758 2023 764 2024 864 2025
Listed exceedances per 1,000 results — independent scale
0.000 2.915 5.831 1.256 2021 5.831 2022 5.277 2023 0.000 2024 0.000 2025

This is our descriptive frequency: listed exceedance records divided by result records, multiplied by 1,000. It is not an official EPA compliance rate. Differences in sampling volume and parameters tested affect comparisons. A missing denominator is shown as unavailable.

Monitoring history by year
YearResultsSamplesParametersListed exceedancesPer 1,000 results
2021796446511.256
2022686396545.831
2023758426745.277
2024764416700.000
2025864406900.000

Year-to-year detail

2025 compared with 2024

Changes describe dataset volumes only. The comparison uses the previous available year.

Results
2024764
2025864
+100
Listed exceedances
20240
20250
0
Samples
202441
202540
-1
Parameters
202467
202569
+2

Parameters with EPA-listed exceedances

Values and limits are reproduced as reported. Different unit/limit pairs are shown separately.

No listed exceedance records are available for this reporting year.

Across the year

When were listed exceedances recorded?

Each point represents one listed exceedance record. Records on the same date remain separate.

No listed exceedance records to plot.

Your mapped supply

Water supply

Every Water Supply Zone used for this page's headline figures is included. Geographic overlaps are reported separately and are not added together or weighted by population.

Ballina Town Mixed Supply

66.63% geographic overlap with the Ballina Built Up Area.

Technical mapping details
EDEN code
2200PUB1008
Local authority
Mayo
Page totals
Included
Spatial rank
1
Historical EPA scheme
Available
Latest monitoring year
2025
Ballina Lisglennon

24.72% geographic overlap with the Ballina Built Up Area.

Technical mapping details
EDEN code
2200PUB1004
Local authority
Mayo
Page totals
Included
Spatial rank
2
Historical EPA scheme
Available
Latest monitoring year
2025

Detailed data

The complete parameter and listed exceedance tables for the reporting year.

69 parameter rows0 listed exceedance records40 samples
Show detailed data69 parameters · 0 exceedance records

Complete parameter index

All parameters in 2025

All parameters with test results or listed exceedance records in the latest reporting year
1,2-dichloroethane6011 Sep 20252
2,3,6-trichlorobenzoic acid6011 Sep 20252
2,4-D6011 Sep 20252
Acrylamide6011 Sep 20252
Aluminium40016 Dec 20252
Ammonium6011 Sep 20252
Antimony6011 Sep 20252
Arsenic6011 Sep 20252
Atrazine6011 Sep 20252
Bentazone6011 Sep 20252
Benzene6011 Sep 20252
Benzo(a)pyrene6011 Sep 20252
Bisphenol A4011 Sep 20252
Boron6011 Sep 20252
Bromate6011 Sep 20252
Cadmium6011 Sep 20252
Chlorfenvinphos6011 Sep 20252
Chloride6011 Sep 20252
Chromium6011 Sep 20252
Clopyralid6011 Sep 20252
Clostridium Perfringens6011 Sep 20252
Coliform Bacteria40016 Dec 20252
Colony Count @ 22°C34016 Dec 20252
Colour40016 Dec 20252
Conductivity40016 Dec 20252
Copper6011 Sep 20252
Cyanide6011 Sep 20252
Cypermethrin6011 Sep 20252
Dichlobenil6011 Sep 20252
Dichlorprop6011 Sep 20252
Diflufenican6011 Sep 20252
Diuron6011 Sep 20252
E. coli40016 Dec 20252
Enterococci40016 Dec 20252
Fluoride6011 Sep 20252
Free Chlorine40016 Dec 20252
Glyphosate6011 Sep 20252
Haloacetic acids (Sum of 5 HAAs)4011 Sep 20252
Iron40016 Dec 20252
Isoproturon6011 Sep 20252
Lead6011 Sep 20252
Linuron6011 Sep 20252
Manganese6011 Sep 20252
MCPA6011 Sep 20252
Mecoprop6011 Sep 20252
Mercury6011 Sep 20252
Metaldehyde6011 Sep 20252
Microcystin-LR4011 Sep 20252
Nickel6011 Sep 20252
Nitrate6011 Sep 20252
Nitrite (at tap)6011 Sep 20252
Odour34016 Dec 20252
PAH6011 Sep 20252
Pendimethalin6011 Sep 20252
Pesticides - Total6011 Sep 20252
pH40016 Dec 20252
Propyzamide6011 Sep 20252
Selenium6011 Sep 20252
Simazine6011 Sep 20252
Sodium6011 Sep 20252
Sulphate6011 Sep 20252
Sum of PFAS (sum of 20)4011 Sep 20252
Taste34016 Dec 20252
Tetrachloroethene & Trichloroethene6011 Sep 20252
Total Chlorine40016 Dec 20252
Total Organic Carbon6011 Sep 20252
Triclopyr6011 Sep 20252
Trihalomethanes(Total)6011 Sep 20252
Turbidity (at tap)40016 Dec 20252

Showing 69 of 69 parameters.

EPA exceedance dataset

Listed exceedances in 2025

Newest first. Sample IDs distinguish records that may otherwise look identical.

All listed exceedance records in the latest reporting year
DateParameterResultUnitReported limitWater supply / EDENSample ID
No listed exceedance records available.

Common questions

Frequently asked questions

Is Ballina tap water safe to drink?

WaterCheck Ireland does not issue a current safe or unsafe verdict. This page presents historical monitoring data. Check Uisce Éireann for any current Boil Water or Do Not Consume notices affecting your address.

Can you drink tap water in Ballina?

WaterCheck Ireland provides historical drinking-water monitoring data, not a current safe or unsafe verdict. For current Boil Water or Do Not Consume notices, check your Eircode with Uisce Éireann.

What is the tap water quality in Ballina?

In 2025, monitoring data for 2 Water Supply Zones mapped to Ballina included 864 results across 69 parameters. The separate EPA-listed exceedance dataset contains 0 records for those zones in 2025. These figures summarise historical records and are not a current safety verdict.

Who monitors drinking water quality in Ballina?

The historical monitoring figures shown here come from drinking-water datasets published by the Environmental Protection Agency (EPA), Ireland. Uisce Éireann operates public water supplies and publishes current supply notices.

What is a Water Supply Zone?

A Water Supply Zone is a defined area supplied by a public drinking-water system. Monitoring records apply to the zone as a whole, so sampling locations can be outside the Census Built Up Area.

What does a listed exceedance mean?

It is a record published in the separate EPA exceedance dataset. WaterCheck Ireland reproduces those records and does not infer additional exceedances or turn the record count into a safety assessment.

How can I check current water notices for my Eircode?

Use your Eircode on the Uisce Éireann website to check current Boil Water and Do Not Consume notices. This page is based on historical monitoring data and is not a live notice service.

Explore nearby reports

Water Quality Near Ballina

Nearest published Built Up Areas, ordered by straight-line distance between Census reference points.

CastlebarMayo · approximately 30.5 kmWestportMayo · approximately 43.0 kmSligoSligo · approximately 47.1 kmTuamGalway · approximately 69.3 kmRoscommonRoscommon · approximately 83.2 kmGalwayGalway · approximately 92.6 km

How this page is made

Sources and methodology

Settlement
Census 2022 Built Up Area: Ballina. Population refers to the whole Built Up Area.
Supply mapping
Uisce Éireann Water Supply Zone boundaries are matched geographically to the settlement.
Monitoring
EPA monitoring results and the separate listed exceedance dataset, 2021–2025.
Interpretation
Geographic overlap measures land area, not population served; monitoring applies across the full supply zone.

Read the full methodologyView data sources

Additional spatial intersections (1)

Retained for mapping transparency; excluded from primary monitoring totals.

ZoneEDENClassGeographic overlap
Ballina - Wherrew2200PUB1003BOUNDARY_TOUCH0.027929%