WaterCheck Ireland

Edenderry Tap Water Quality

EPA monitoring records for Water Supply Zones mapped to Edenderry contain 259 monitoring results across 67 parameters in 2025.

The separate EPA exceedance dataset contains 1 listed exceedance records across 1 parameter.

The most frequently listed parameter was Lead (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
Edenderry P.W.S.
Geographic overlap
90.97%
259Monitoring results
67Parameters tested
1EPA-listed exceedances
12Samples

The Edenderry Built Up Area overlaps Edenderry P.W.S. across approximately 90.97% of its land area.

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

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 median17 ug/l
2025 maximum17 ug/l
Measurements in 20252

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.

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Numeric resultEPA-listed exceedance

2 numeric measurements available; 8 text-only records retained in JSON.

Nitrate

2025 median11.915
2025 maximum14.54
Measurements in 20252

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

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

E. coli

2025 median0
2025 maximum0
Measurements in 202512

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

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

Coliform Bacteria

2025 median0
2025 maximum0
Measurements in 202512

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

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

Fluoride

2025 median0.225
2025 maximum0.23
Measurements in 20252

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

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

Iron

2025 median—
2025 maximum—
Measurements in 202512

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

2 numeric measurements available; 70 text-only records retained in JSON.

Arsenic

2025 median—
2025 maximum—
Measurements in 20252

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; 10 text-only records retained in JSON.

2025259 results · 1 listed exceedances
Total results — independent scale
0 145.5 291 278 2021 279 2022 290 2023 291 2024 259 2025
Listed exceedances per 1,000 results — independent scale
0.000 3.448 6.897 0.000 2021 0.000 2022 6.897 2023 0.000 2024 3.861 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
2021278156400.000
2022279156400.000
2023290156426.897
2024291156400.000
2025259126713.861

Year-to-year detail

2025 compared with 2024

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

Results
2024291
2025259
-32
Listed exceedances
20240
20251
+1
Samples
202415
202512
-3
Parameters
202464
202567
+3

Parameters with EPA-listed exceedances

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

Lead

1 listed exceedance records / 2 tests50.00%

Descriptive frequency of records, not an official compliance measure.

Highest listed result
17 ug/l
Reported limit
10 ug/l
Records with this unit/limit pair
1
Latest exceedance
21 Aug 2025

Across the year

When were listed exceedances recorded?

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

Lead21 Aug 2025
17 ug/lReported result
10 ug/lReported limit
Edenderry PWSWater supply
JanFebMarAprMayJunJulAugSepOctNovDecLead21 Aug 2025 — Lead: 17 ug/l; reported limit 10; Edenderry PWS; sample 8492/2508260/01

1 listed exceedance records across 1 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.

Edenderry P.W.S.

90.97% geographic overlap with the Edenderry Built Up Area.

Technical mapping details
EDEN code
2500PUB1008
Local authority
Offaly
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.

67 parameter rows1 listed exceedance records12 samples
Show detailed data67 parameters · 1 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-dichloroethane2021 Aug 20251
2,3,6-trichlorobenzoic acid2021 Aug 20251
2,4-D2021 Aug 20251
Aluminium3028 Aug 20251
Ammonium2021 Aug 20251
Antimony2021 Aug 20251
Arsenic2021 Aug 20251
Atrazine2021 Aug 20251
Bentazone2021 Aug 20251
Benzene2021 Aug 20251
Benzo(a)pyrene2021 Aug 20251
Bisphenol A2021 Aug 20251
Boron2021 Aug 20251
Bromate2021 Aug 20251
Cadmium2021 Aug 20251
Chlorfenvinphos2021 Aug 20251
Chloride2021 Aug 20251
Chromium2021 Aug 20251
Clopyralid2021 Aug 20251
Clostridium Perfringens2021 Aug 20251
Coliform Bacteria12005 Nov 20251
Colony Count @ 22°C10005 Nov 20251
Colour12005 Nov 20251
Conductivity12005 Nov 20251
Copper2021 Aug 20251
Cyanide2021 Aug 20251
Cypermethrin2021 Aug 20251
Dichlobenil2021 Aug 20251
Dichlorprop2021 Aug 20251
Diflufenican2021 Aug 20251
Diuron2021 Aug 20251
E. coli12005 Nov 20251
Enterococci12005 Nov 20251
Fluoride2021 Aug 20251
Free Chlorine12005 Nov 20251
Glyphosate2021 Aug 20251
Haloacetic acids (Sum of 5 HAAs)2021 Aug 20251
Iron12005 Nov 20251
Isoproturon2021 Aug 20251
Lead2121 Aug 20251
Linuron2021 Aug 20251
Manganese2021 Aug 20251
MCPA2021 Aug 20251
Mecoprop2021 Aug 20251
Mercury2021 Aug 20251
Metaldehyde2021 Aug 20251
Nickel2021 Aug 20251
Nitrate2021 Aug 20251
Nitrite (at tap)2021 Aug 20251
Odour10005 Nov 20251
PAH2021 Aug 20251
Pendimethalin2021 Aug 20251
Pesticides - Total2021 Aug 20251
pH12005 Nov 20251
Propyzamide2021 Aug 20251
Selenium2021 Aug 20251
Simazine2021 Aug 20251
Sodium2021 Aug 20251
Sulphate2021 Aug 20251
Sum of PFAS (sum of 20)2021 Aug 20251
Taste10005 Nov 20251
Tetrachloroethene & Trichloroethene2021 Aug 20251
Total Chlorine12005 Nov 20251
Total Organic Carbon2021 Aug 20251
Triclopyr2021 Aug 20251
Trihalomethanes(Total)2021 Aug 20251
Turbidity (at tap)12005 Nov 20251

Showing 67 of 67 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
21 Aug 2025Lead17ug/l10Edenderry PWS
2500PUB1008		8492/2508260/01

Common questions

Frequently asked questions

Is Edenderry 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 Edenderry?

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 Edenderry?

In 2025, monitoring data for the Water Supply Zone mapped to Edenderry included 259 results across 67 parameters. The separate EPA-listed exceedance dataset contains 1 records for those zones in 2025. These figures summarise historical records and are not a current safety verdict.

Who monitors drinking water quality in Edenderry?

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 Edenderry

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

PortarlingtonLaois · approximately 21.9 kmMonasterevinKildare · approximately 22.0 kmKildareKildare · approximately 22.5 kmNewbridgeKildare · approximately 24.7 kmClaneKildare · approximately 24.9 kmKilcockKildare · approximately 26.6 km

How this page is made

Sources and methodology

Settlement
Census 2022 Built Up Area: Edenderry. 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
Rhode RWSS P.W.S.2500PUB1017SECONDARY0.144096%