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Polluted by sewage 313 times in 2025 lasting 637 hours
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Donate NowHere are all the reported sewage overflow totals for Hereford in 2025. 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 place all the declared CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s appeared to have monitoring enabled for more than 50% of the year
| Company | Waterway | Site | Sewage Dumps | Duration (Hours) | Reporting % |
|---|---|---|---|---|---|
| Dwr Cymru Welsh Water | River Wye | EIGN WASTEWATER TREATMENT WORKS | 47 | 405 | 99.9 |
| Dwr Cymru Welsh Water | River Wye | ST MARTINS ALLOTMENTS CSO HEREFORD | 31 | 96 | 99.9 |
| Dwr Cymru Welsh Water | River Wye | BELMONT ROUNDABOUT CSO | 9 | 50 | 94.1 |
| Dwr Cymru Welsh Water | River Wye | GREYFRIARS BRIDGE CSO | 15 | 32 | 92.8 |
| Dwr Cymru Welsh Water | River Wye | EIGN 1B COMBINED SEWER OVERFLOW | 8 | 24 | 99.9 |
| Dwr Cymru Welsh Water | Yazor Brook | 3 ELMS ROAD COMBINED SEWER OVERFLOW | 24 | 11 | 98 |
| Dwr Cymru Welsh Water | Yazor Brook | THREE ELMS ROAD CSO | 14 | 6 | 99.9 |
| Dwr Cymru Welsh Water | Yazor Brook | GRANDSTAND ROAD CSO | 11 | 4 | 99.3 |
| Dwr Cymru Welsh Water | Yazor Brook | BARTON ROAD COMBINED SEWER OVERFLOW | 144 | 4 | 99.9 |
| Dwr Cymru Welsh Water | Lugg Rheay | SEATON AVENUE CSO | 6 | 2 | 93.7 |
| Dwr Cymru Welsh Water | Widemarsh Brook | MISS CHAVES COMBINED SEWER OVERFLOW | 2 | 0 | 99.9 |
| Dwr Cymru Welsh Water | Belvedere Brook | WHITECROSS ROAD CSO HEREFORD | 2 | 0 | 100 |
| Dwr Cymru Welsh Water | River Wye | LEYMANS FIELD PS BRAEMAR GARDENS | 0 | 0 | 99.9 |
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. Live sewage data from Stream Water API
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.
Get in touch if you have queries or want to discuss our data.
press [at] top-of-the-poops.org