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Polluted by sewage 184 times in 2025 lasting 495 hours
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Donate NowHere are all the reported sewage overflow totals for Penwortham 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 % |
|---|---|---|---|---|---|
| United Utilities | River Ribble | BANK PARADE CSO | 39 | 125 | 100 |
| United Utilities | River Ribble | HOLME ROAD COMBINED SEWER OVERFLOW | 62 | 104 | 93.1 |
| United Utilities | Boundary Brook | CAUSEY WAY COMBINED SEWER OVERFLOW | 22 | 70 | 92.5 |
| United Utilities | River Ribble | WOLSELEY ROAD CSO | 3 | 37 | 99.9 |
| United Utilities | Tidal River Ribble | PRESTON NETWORK TERMINAL PUMPING ST | 11 | 35 | 99.9 |
| United Utilities | Unnamed Of Mill Brook | THE GREENACRES CSO | 13 | 33 | 99.8 |
| United Utilities | River Ribble | FISHERGATE HILL CSO (CHAMBER C9) | 3 | 20 | 52.5 |
| United Utilities | Of River Ribble | COP LANE CSO | 1 | 15 | 100 |
| United Utilities | Chain Caul Culvert | POWIS ROAD CSO 332MG PRE0025 | 2 | 14 | 100 |
| United Utilities | River Ribble | WATERY LANE FORMER PS CSO 339DQ | 2 | 14 | 70.3 |
| United Utilities | River Ribble | FISHERGATE HILL CSO CHAMBER C8 | 3 | 13 | 60.8 |
| United Utilities | Chain Caul Storm Culvert | WATERY LANE CSO PRE0108 | 1 | 4 | 99.9 |
| United Utilities | Swillbrook Culvert | FRENCHWOOD KNOLL CSO 331UX | 18 | 2 | 100 |
| United Utilities | River Ribble | VALLEY ROAD PUMPING STATION | 3 | 1 | 100 |
| United Utilities | Moorbrook Culvert -> River Ribble | WATERY LANE CSO SHAFT C1 PRE0093 | 1 | 1 | 78.1 |
| United Utilities | River Ribble Via Chain Culvert | MARSH LANE CSO PRE0021 | 0 | 0 | 100 |
| United Utilities | Chain Caul Culvert Into Ribble | WEST STRAND CSO CHAMBER C10 PRE0071 | 0 | 0 | 100 |
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
Annual figures up to and including 2025 come from official water company returns. The 2026 figure is our own estimate, derived continuously from the companies' live data feeds.
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