Caerphilly

Polluted by sewage 1,819 times in 2024 lasting 9,496 hours - That's 1.1 years!

Monitoring fell below 50% in some locations so could be more

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Contains OS Data © Crown copyright & database right 2021-2024
© Top of the Poops 2021-2024

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✔ means we have experimental daily data since 2023

Totals for Caerphilly in 2024

36 Sites polluted by Dwr Cymru Welsh Water

1,819 sewage dumps

9,496 hours duration

That's 1.1 years! On average 5 times a day

Change Over Time

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Constituencies near Caerphilly

Waterways in Caerphilly

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Pollution Summary 2024

Here are all the reported sewage overflow totals for Caerphilly in 2024. Sometimes sewage can be being dumped for months at a time.

Reporting refers to how much of the time the monitoring was active. In this constituency 1 of the total 42 CSO locations had reporting enabled for less than half the year.

Search:

Company	Waterway	Site	Sewage Dumps	Duration (Hours)	Reporting %
Dwr Cymru Welsh Water	Sirhowy River	CSO 20 OLD MILL NEWPORT ROAD	148	1,392	99.8
Dwr Cymru Welsh Water	Porset Brook	CSO at Lansbury Park Estate	139	1,334	91.9
Dwr Cymru Welsh Water	River Rhymney	CWM LAS CSO	115	1,149	98.2
Dwr Cymru Welsh Water	River Rhymney	CSO at Glan-yr-Afon Nursing Home No2, Pengam	119	1,138	87.4
Dwr Cymru Welsh Water	River Sirhowy	Springfield Est CSO, Pontllanfraith	112	882	96.7
Dwr Cymru Welsh Water	River Rhymney	Tredomen AFC CSO, Ystrad Mynach	95	824	99.8
Dwr Cymru Welsh Water	Nant Y Aber	Combined Sewer Overflow at Bryn Siriol	81	361	80.8
Dwr Cymru Welsh Water	River Rhymney	CSO at Glan-yr-Afon Nursing Home 1	93	320	99
Dwr Cymru Welsh Water	River Sirhowy	Bottom of Nine Mile Point Colliery CSO	30	235	98.5
Dwr Cymru Welsh Water	River Rhymney	Tir-y-Berth behind William St	67	197	98.5

Showing 1 to 10 of 42 entries

Data Sources & Accuracy

EDM (Event Duration Monitoring) data and Consented Discharges to Controlled Waters with Conditions from Environment Agency & Data Map Wales, and Scottish Water

Experimental derived data from Thames Water API, Some data may be missing or inaccurate. This uses Environment Agency rainfall data from the real-time data API (Beta) - Rainfall data is delayed by up to two days.

This website is intended to provide an accurate representation of the Environment Agency data. The data is hard to use, and thus some errors may have been made. If you find something that is incorrect, please raise an issue at the GitHub issues page and we'll endeavour to fix it quickly.

This project is not associated, approved or endorsed by any of the companies whose logos you see here.

Analysing sewage pollution by the Water Industry

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Caerphilly Polluted by sewage 1,819 times in 2024 lasting 9,496 hours - That's 1.1 years! Monitoring fell below 50% in some locations so could be more

Caerphilly