WaterCheck Ireland

Tralee Tap Water Quality

EPA monitoring records for Water Supply Zones mapped to Tralee contain 1,995 monitoring results across 68 parameters in 2025.

The separate EPA exceedance dataset contains 6 listed exceedance records across 4 parameters.

The most frequently listed were Iron (2), pH (2) and Coliform Bacteria (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 Zone
Central Regional: Lough Guitane (H) 400F
Geographic overlap
81.18%
1,995Monitoring results
68Parameters tested
6EPA-listed exceedances
102Samples

The Tralee Built Up Area overlaps Central Regional: Lough Guitane (H) 400F across approximately 81.18% of its land area.

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

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 202511

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; 41 text-only records retained in JSON.

Nitrate

2025 median—
2025 maximum—
Measurements in 202511

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; 49 text-only records retained in JSON.

E. coli

2025 median0
2025 maximum0
Measurements in 2025101

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

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

Coliform Bacteria

2025 median0 100ml
2025 maximum2 100ml
Measurements in 2025101

1 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

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

Fluoride

2025 median0.8
2025 maximum0.9
Measurements in 202511

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

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

Iron

2025 median23 ug/l
2025 maximum277 ug/l
Measurements in 2025100

2 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

233 numeric measurements available; 225 text-only records retained in JSON.

Arsenic

2025 median—
2025 maximum—
Measurements in 202511

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; 49 text-only records retained in JSON.

20251,995 results · 6 listed exceedances
Total results — independent scale
0 997.5 1,995 1,669 2021 1,655 2022 1,735 2023 1,708 2024 1,995 2025
Listed exceedances per 1,000 results — independent scale
0.000 1.813 3.625 1.797 2021 3.625 2022 3.458 2023 0.585 2024 3.008 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
20211,6691056431.797
20221,655896463.625
20231,735906463.458
20241,708916510.585
20251,9951026863.008

Year-to-year detail

2025 compared with 2024

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

Results
20241,708
20251,995
+287
Listed exceedances
20241
20256
+5
Samples
202491
2025102
+11
Parameters
202465
202568
+3

Parameters with EPA-listed exceedances

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

Iron

2 listed exceedance records / 100 tests2.00%

Descriptive frequency of records, not an official compliance measure.

Highest listed result
277 ug/l
Reported limit
200 ug/l
Records with this unit/limit pair
2
Latest exceedance
12 Nov 2025

pH

2 listed exceedance records / 101 tests1.98%

Descriptive frequency of records, not an official compliance measure.

Highest listed result
9.8 pH Units
Reported limit
9.5 pH Units
Records with this unit/limit pair
2
Latest exceedance
16 Jun 2025

Coliform Bacteria

1 listed exceedance records / 101 tests0.99%

Descriptive frequency of records, not an official compliance measure.

Highest listed result
2 100ml
Reported limit
0 100ml
Records with this unit/limit pair
1
Latest exceedance
06 Oct 2025

Colony Count @ 22°C

1 listed exceedance records / 89 tests1.12%

Descriptive frequency of records, not an official compliance measure.

Highest listed result
300 1ml
Reported limit
100 1ml
Records with this unit/limit pair
1
Latest exceedance
08 Dec 2025

Across the year

When were listed exceedances recorded?

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

Colony Count @ 22°C08 Dec 2025
300 1mlReported result
100 1mlReported limit
Central Regional - Lough Guitane (H) 400FWater supply
JanFebMarAprMayJunJulAugSepOctNovDecColiform BacteriaColony Count @ 22°CIronpH08 Dec 2025 — Colony Count @ 22°C: 300 1ml; reported limit 100; Central Regional - Lough Guitane (H) 400F; sample 28389312 Nov 2025 — Iron: 232 ug/l; reported limit 200; Central Regional - Lough Guitane (H) 400F; sample 28125106 Oct 2025 — Coliform Bacteria: 2 100ml; reported limit 0; Central Regional - Lough Guitane (H) 400F; sample 27840030 Jun 2025 — Iron: 277 ug/l; reported limit 200; Central Regional - Lough Guitane (H) 400F; sample 27156816 Jun 2025 — pH: 9.8 pH Units; reported limit 9.5; Central Regional - Lough Guitane (H) 400F; sample 27056914 Apr 2025 — pH: 9.8 pH Units; reported limit 9.5; Central Regional - Lough Guitane (H) 400F; sample 267061

6 listed exceedance records across 4 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.

Central Regional: Lough Guitane (H) 400F

81.18% geographic overlap with the Tralee Built Up Area.

Technical mapping details
EDEN code
1300PUB1016
Local authority
Kerry
Page totals
Included
Spatial rank
1
Historical EPA scheme
Available
Latest monitoring year
2025

Detailed data

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

68 parameter rows6 listed exceedance records102 samples
Show detailed data68 parameters · 6 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-dichloroethane11013 Oct 20251
2,3,6-trichlorobenzoic acid11013 Oct 20251
2,4-D11013 Oct 20251
Acrylamide11013 Oct 20251
Aluminium97008 Dec 20251
Ammonium11013 Oct 20251
Antimony8015 Sep 20251
Arsenic11013 Oct 20251
Atrazine11013 Oct 20251
Bentazone11013 Oct 20251
Benzene11013 Oct 20251
Benzo(a)pyrene11013 Oct 20251
Bisphenol A11013 Oct 20251
Boron11013 Oct 20251
Bromate11013 Oct 20251
Cadmium11013 Oct 20251
Chlorfenvinphos11013 Oct 20251
Chloride11013 Oct 20251
Chromium11013 Oct 20251
Clopyralid11013 Oct 20251
Clostridium Perfringens11013 Oct 20251
Coliform Bacteria101108 Dec 20251
Colony Count @ 22°C89108 Dec 20251
Colour101008 Dec 20251
Conductivity101008 Dec 20251
Copper11013 Oct 20251
Cyanide11013 Oct 20251
Cypermethrin11013 Oct 20251
Dichlobenil11013 Oct 20251
Dichlorprop11013 Oct 20251
Diflufenican11013 Oct 20251
Diuron11013 Oct 20251
E. coli101008 Dec 20251
Enterococci101008 Dec 20251
Fluoride11013 Oct 20251
Free Chlorine101008 Dec 20251
Glyphosate11013 Oct 20251
Haloacetic acids (Sum of 5 HAAs)11013 Oct 20251
Iron100208 Dec 20251
Isoproturon11013 Oct 20251
Lead11013 Oct 20251
Linuron11013 Oct 20251
Manganese16013 Oct 20251
MCPA11013 Oct 20251
Mecoprop11013 Oct 20251
Mercury11013 Oct 20251
Metaldehyde11013 Oct 20251
Nickel11013 Oct 20251
Nitrate11013 Oct 20251
Nitrite (at tap)11013 Oct 20251
Odour101008 Dec 20251
PAH11013 Oct 20251
Pendimethalin11013 Oct 20251
Pesticides - Total11013 Oct 20251
pH101208 Dec 20251
Propyzamide11013 Oct 20251
Selenium11013 Oct 20251
Simazine11013 Oct 20251
Sodium13013 Oct 20251
Sulphate11013 Oct 20251
Sum of PFAS (sum of 20)11013 Oct 20251
Taste101008 Dec 20251
Tetrachloroethene & Trichloroethene11013 Oct 20251
Total Chlorine101008 Dec 20251
Total Organic Carbon11013 Oct 20251
Triclopyr11013 Oct 20251
Trihalomethanes(Total)11013 Oct 20251
Turbidity (at tap)101008 Dec 20251

Showing 68 of 68 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
08 Dec 2025Colony Count @ 22°C3001ml100Central Regional - Lough Guitane (H) 400F
1300PUB1016		283893
12 Nov 2025Iron232ug/l200Central Regional - Lough Guitane (H) 400F
1300PUB1016		281251
06 Oct 2025Coliform Bacteria2100ml0Central Regional - Lough Guitane (H) 400F
1300PUB1016		278400
30 Jun 2025Iron277ug/l200Central Regional - Lough Guitane (H) 400F
1300PUB1016		271568
16 Jun 2025pH9.8pH Units9.5Central Regional - Lough Guitane (H) 400F
1300PUB1016		270569
14 Apr 2025pH9.8pH Units9.5Central Regional - Lough Guitane (H) 400F
1300PUB1016		267061

Common questions

Frequently asked questions

Is Tralee 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 Tralee?

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 Tralee?

In 2025, monitoring data for the Water Supply Zone mapped to Tralee included 1,995 results across 68 parameters. The separate EPA-listed exceedance dataset contains 6 records for those zones in 2025. These figures summarise historical records and are not a current safety verdict.

Who monitors drinking water quality in Tralee?

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 Tralee

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

KillarneyKerry · approximately 27.3 kmNewcastle WestLimerick · approximately 48.2 kmMallowCork · approximately 73.7 kmShannonClare · approximately 74.2 kmEnnisClare · approximately 80.6 kmLimerickLimerick · approximately 84.6 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.

KillarneyCentral Regional: Lough Guitane (H) 400F

How this page is made

Sources and methodology

Settlement
Census 2022 Built Up Area: Tralee. 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