Media Queries
Get in touch if you have queries or want to discuss our data.
press [at] top-of-the-poops.org
Please Support Us
We rely on donations to fund our work. Please support us if you can
Polluted by sewage 420 times in 2025 lasting 2,012 hours
Your local MP is Ashley Dalton (Labour) - Find out more about their interests, donors, and voting at They Work For You
Please consider a one-off or small recurring donation. We need your help to keep this site going.
Donate NowHere are all the reported sewage overflow totals for West Lancashire 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 | River Douglas | WIGAN WASTEWATER TREATMENT WORKS | 33 | 477 | 100 |
| United Utilities | River Douglas | MILL LANE CSO 49201 | 91 | 434 | 90.5 |
| United Utilities | Simonswood Brook | BARROWNOOK WWTW | 64 | 292 | 99.8 |
| United Utilities | Castle Brook | WESTHEAD WWTW | 51 | 232 | 97.5 |
| United Utilities | Hey Cop Drain, River Alt | HILLHOUSE WWTW | 27 | 138 | 100 |
| United Utilities | Boathouse Sluice | BURSCOUGH WWTW | 12 | 119 | 100 |
| United Utilities | River Douglas | SKELMERSDALE WWTW SKELM | 26 | 104 | 98.05 |
| United Utilities | River Tawd Via Sws | 194 ORMSKIRK ROAD CSO | 48 | 85 | 99.8 |
| United Utilities | Bickerstaffe Brook | BICKERSTAFFE W.WATER PUMP STATION | 8 | 48 | 99.9 |
| United Utilities | River Tawd Via Sws | NEAR TAWD VALE INN CSO | 28 | 32 | 100 |
| United Utilities | River Douglas | FAIRHURST DRIVE SPS | 3 | 15 | 98.8 |
| United Utilities | Pond Rivtawd Via Sws | O/S 1 TEVERSHAM CSO | 11 | 14 | 97.3 |
| United Utilities | River Tawd | NR FIRE STN ORMSKIRK RD | 10 | 6 | 99.8 |
| United Utilities | Fine Janes Brook | AINSDALE WASTEWATER TREATMENT WORKS | 4 | 6 | 95.3 |
| United Utilities | Eller Brook Via Sws | DERBY STREET CSO (49200) | 4 | 4 | 93.2 |
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