Cardiff West polluted by sewage 463 times in 2022 - lasting 3,586 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 West in 2022
7 Sites polluted by Dwr Cymru Welsh Water
463 sewage dumps
3,586 h duration
That's 4.98 months. On average 1.3 times a day

Pollution Summary 2022

Here are all the reported sewage overflow totals for Cardiff West 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 Clun RHIWSAESON STW RHIWSAESON LLANTRI Settled Storm 164 1,190 100
Dwr Cymru Welsh Water Nant Glaswg Creigiau Sewage Treatment Works Hoel Settled Storm 62 1,043 100
Dwr Cymru Welsh Water River Elai St Fagans STW 89 789 100
Dwr Cymru Welsh Water Nant Henstaff CREIGIAU PS 36 283 100
Dwr Cymru Welsh Water Nant Dowlais RHYDLAFAR STW ST FAGANS CARDIFF 81 248 100
Dwr Cymru Welsh Water River Ely CSO at TRELAI PARK STORM SEWAGE PS 26 29 100
Dwr Cymru Welsh Water River Ely Ely Mill Rd/Muston Rd CSO, Cardiff 5 1 100
Dwr Cymru Welsh Water River Ely CSO at Cardiff Ely Plymouth Rd No 108 0 0 99.8

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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