Cardiff North polluted by sewage 312 times in 2022 - lasting 2,628 hours

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Contains OS Data © Crown copyright & database right 2021-2022
© Top of the Poops 2021-2023
✔ means we have experimental daily data for 2023
Totals for Cardiff North in 2022
9 Sites polluted by Dwr Cymru Welsh Water
312 sewage dumps
2,628 h duration
That's 3.65 months. 6 times a week, on average

Pollution Summary 2022

Here are all the reported sewage overflow totals for Cardiff North in 2022. Sometimes sewage can be being dumped for months at a time.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Dwr Cymru Welsh Water River Taff Tongwynlais CSO 106 2,013 100
Dwr Cymru Welsh Water River Rhymney Storm Water Overflow at Began, St Mellons 93 351 98.1
Dwr Cymru Welsh Water River Taff Ynys Bridge CSO 31 206 99.5
Dwr Cymru Welsh Water Nant-Y-Wedal HEATHWOOD ROAD CSO, HEATHWOOD JUNCTION 29 19 99.7
Dwr Cymru Welsh Water Rhydwaedlyd Brook Caedelyn Park Boundary CSO 27 17 99.6
Dwr Cymru Welsh Water Rhymney River Began Road CSO 2 7 99.5
Dwr Cymru Welsh Water Taff Bottom of Westbourne Crescent CSO, Cardiff 16 6 95.8
Dwr Cymru Welsh Water River Rhymney CSO at Bridge Road, St Mellons, Cardiff 2 4 91.8
Dwr Cymru Welsh Water River Taff Via Culverted Watercourse ABERPORTH RD CSO 6 2 99

Data Sources & Accuracy

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

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.

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