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Polluted by sewage 1,030 times in 2025 lasting 2,704 hours
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Donate NowHere are all the reported sewage overflow totals for St Helens North 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 constituency 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 % |
|---|---|---|---|---|---|
| United Utilities | Sankey Brook | ST HELENS STW | 570 | 601 | 100 |
| United Utilities | Sankey Brook | WEST END/ WHARF ROAD CSO 425F3 | 35 | 485 | 95.3 |
| United Utilities | Dean Brook R Douglas | DEAN WOOD CSO | 70 | 303 | 97.9 |
| United Utilities | Black Brook | BILLINGE SOUTH PS | 25 | 261 | 100 |
| United Utilities | Black Brook | FOLDS ROAD COMBINED SEWER OVERFLOW | 68 | 216 | 99.5 |
| United Utilities | Sankey Canal | RED BROW CSO (42076) | 42 | 173 | 99.4 |
| United Utilities | Newton Brook | 10 WARWICK AVENUE CSO (42058) | 40 | 136 | 96.4 |
| United Utilities | Sankey Brook | WHARF ROAD CSO 42077 | 44 | 122 | 98.9 |
| United Utilities | Ellams Brook, Newton Brook | LODGE LANE COMBINED SEWER OVERFLOW | 13 | 94 | 99.9 |
| United Utilities | Black Brook Via Sws | CARR MILL ROAD CSO | 35 | 73 | 99.4 |
| United Utilities | Sankey Brook | MALVERN ROAD CSO (42052) | 29 | 66 | 99.8 |
| United Utilities | Rainford Brook | WASHWAY LANE | 31 | 62 | 99.8 |
| United Utilities | Sutton Brook Via Sws | BERRYS LANE COMBINED SEWER OVERFLOW | 11 | 44 | 97.4 |
| United Utilities | Unknown | VICARAGE ROAD | 5 | 34 | 95.3 |
| United Utilities | Sankey Brook | RUDD AVENUE | 5 | 27 | 99.9 |
| United Utilities | Newton Brook | WARGRAVE ROAD CSO | 5 | 1 | 85 |
| United Utilities | Newton Brook | MILL LANE CSO 425E6 | 2 | 0 | 99.5 |
| United Utilities | Sankey Brook | GLOUCESTER STREET | 0 | 0 | 96.3 |
| United Utilities | Unknown | PARK ROAD NORTH | 0 | 0 | 83.6 |
| United Utilities | Sankey Brook | WHARF ROAD CSO | 0 | 0 | 99 |
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