WaterCheck Ireland

Athy Tap Water Quality

EPA monitoring records for Water Supply Zones mapped to Athy contain 803 monitoring results across 69 parameters in 2025.

The separate EPA exceedance dataset contains 2 listed exceedance records across 2 parameters.

The most frequently listed were Triclopyr (1) and Trihalomethanes(Total) (1).

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
803Monitoring results
69Parameters tested
2EPA-listed exceedances
40Samples

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

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 median1
2025 maximum1
Measurements in 20255

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.

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Numeric resultEPA-listed exceedance

4 numeric measurements available; 17 text-only records retained in JSON.

Nitrate

2025 median11.37
2025 maximum16.7
Measurements in 20255

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.

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Numeric resultEPA-listed exceedance

21 numeric measurements available; 0 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.

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Numeric resultEPA-listed exceedance

186 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

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

Fluoride

2025 median0.6 mg/l
2025 maximum0.7 mg/l
Measurements in 20255

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.

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Numeric resultEPA-listed exceedance

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

Iron

2025 median23.5
2025 maximum25
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

12 numeric measurements available; 174 text-only records retained in JSON.

Arsenic

2025 median—
2025 maximum—
Measurements in 20255

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

0 numeric measurements available; 21 text-only records retained in JSON.

2025803 results · 2 listed exceedances
Total results — independent scale
0 401.5 803 649 2021 648 2022 712 2023 715 2024 803 2025
Listed exceedances per 1,000 results — independent scale
0.000 6.320 12.640 12.327 2021 3.086 2022 12.640 2023 2.797 2024 2.491 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
20216494064812.327
2022648406423.086
20237125664912.640
2024715576422.797
2025803406922.491

Year-to-year detail

2025 compared with 2024

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

Results
2024715
2025803
+88
Listed exceedances
20242
20252
0
Samples
202457
202540
-17
Parameters
202464
202569
+5

Parameters with EPA-listed exceedances

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

Triclopyr

1 listed exceedance records / 5 tests20.00%

Descriptive frequency of records, not an official compliance measure.

Highest listed result
0.117 µg/l
Reported limit
0.1 µg/l
Records with this unit/limit pair
1
Latest exceedance
06 Jun 2025

Trihalomethanes(Total)

1 listed exceedance records / 5 tests20.00%

Descriptive frequency of records, not an official compliance measure.

Highest listed result
102.1 ug/l
Reported limit
100 ug/l
Records with this unit/limit pair
1
Latest exceedance
06 Jun 2025

Across the year

When were listed exceedances recorded?

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

Triclopyr06 Jun 2025
0.117 µg/lReported result
0.1 µg/lReported limit
Barrow SupplyWater supply
JanFebMarAprMayJunJulAugSepOctNovDecTriclopyrTrihalomethanes(Total)06 Jun 2025 — Triclopyr: 0.117 µg/l; reported limit 0.1; Barrow Supply; sample 0844/2506989/0106 Jun 2025 — Trihalomethanes(Total): 102.1 ug/l; reported limit 100; Barrow Supply; sample 0844/2506989/01

2 listed exceedance records across 2 parameters in 2025.

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.

Barrow Supply

84.41% geographic overlap with the Athy Built Up Area.

Technical mapping details
EDEN code
1400PUB1060
Local authority
Kildare
Page totals
Included
Spatial rank
1
Historical EPA scheme
Available
Latest monitoring year
2025
Monasterevin

9.06% geographic overlap with the Athy Built Up Area.

Technical mapping details
EDEN code
1400PUB1020
Local authority
Kildare
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 rows2 listed exceedance records40 samples
Show detailed data69 parameters · 2 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-dichloroethane5006 Nov 20252
2,3,6-trichlorobenzoic acid5006 Nov 20252
2,4-D5006 Nov 20252
Acrylamide5006 Nov 20252
Aluminium27016 Dec 20252
Ammonium5006 Nov 20252
Antimony5006 Nov 20252
Arsenic5006 Nov 20252
Atrazine5006 Nov 20252
Bentazone5006 Nov 20252
Benzene5006 Nov 20252
Benzo(a)pyrene5006 Nov 20252
Bisphenol A5006 Nov 20252
Boron5006 Nov 20252
Bromate5006 Nov 20252
Cadmium5006 Nov 20252
Chlorfenvinphos5006 Nov 20252
Chloride5006 Nov 20252
Chromium5006 Nov 20252
Clopyralid5006 Nov 20252
Clostridium Perfringens5006 Nov 20252
Coliform Bacteria40016 Dec 20252
Colony Count @ 22°C35016 Dec 20252
Colour40016 Dec 20252
Conductivity40016 Dec 20252
Copper5006 Nov 20252
Cyanide5006 Nov 20252
Cypermethrin5006 Nov 20252
Dichlobenil5006 Nov 20252
Dichlorprop5006 Nov 20252
Diflufenican5006 Nov 20252
Diuron5006 Nov 20252
E. coli40016 Dec 20252
Enterococci40016 Dec 20252
Fluoride5006 Nov 20252
Free Chlorine40016 Dec 20252
Glyphosate5006 Nov 20252
Haloacetic acids (Sum of 5 HAAs)5006 Nov 20252
Iron40016 Dec 20252
Isoproturon5006 Nov 20252
Lead5006 Nov 20252
Linuron5006 Nov 20252
Manganese5006 Nov 20252
MCPA5006 Nov 20252
Mecoprop5006 Nov 20252
Mercury5006 Nov 20252
Metaldehyde5006 Nov 20252
Microcystin-LR1006 Nov 20251
Nickel5006 Nov 20252
Nitrate5006 Nov 20252
Nitrite (at tap)5006 Nov 20252
Odour35016 Dec 20252
PAH5006 Nov 20252
Pendimethalin5006 Nov 20252
Pesticides - Total5006 Nov 20252
pH40016 Dec 20252
Propyzamide5006 Nov 20252
Selenium5006 Nov 20252
Simazine5006 Nov 20252
Sodium5006 Nov 20252
Sulphate5006 Nov 20252
Sum of PFAS (sum of 20)5006 Nov 20252
Taste35016 Dec 20252
Tetrachloroethene & Trichloroethene5006 Nov 20252
Total Chlorine40016 Dec 20252
Total Organic Carbon5006 Nov 20252
Triclopyr5106 Nov 20252
Trihalomethanes(Total)5106 Nov 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
06 Jun 2025Triclopyr0.117µg/l0.1Barrow Supply
1400PUB1060		0844/2506989/01
06 Jun 2025Trihalomethanes(Total)102.1ug/l100Barrow Supply
1400PUB1060		0844/2506989/01

Common questions

Frequently asked questions

Is Athy 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 Athy?

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 Athy?

In 2025, monitoring data for 2 Water Supply Zones mapped to Athy included 803 results across 69 parameters. The separate EPA-listed exceedance dataset contains 2 records for those zones in 2025. These figures summarise historical records and are not a current safety verdict.

Who monitors drinking water quality in Athy?

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 Athy

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

MonasterevinKildare · approximately 17.5 kmCarlowCarlow · approximately 17.8 kmKildareKildare · approximately 19.4 kmPortlaoiseLaois · approximately 21.7 kmPortarlingtonLaois · approximately 23.0 kmNewbridgeKildare · approximately 24.1 km

Connected by mapped supply

Places sharing this Water Supply Zone

These published places share at least one Water Supply Zone used in this page's headline figures.

MonasterevinMonasterevin

How this page is made

Sources and methodology

Settlement
Census 2022 Built Up Area: Athy. 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