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Polluted by sewage 618 times in 2024 lasting 3,445 hours
So far this year (as of May 8, 2025, 2:00 PM) there has been 922 hours of sewage overflows
Your local MP is Ashley Dalton (Labour) - Find out more about their interests, donors, and voting at They Work For You
We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for West Lancashire, here you can see overflows in red, the darker the red, the more the CSO overflowed that day.
Each CSO has a row, the most recent data is on the right hand side.
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Donate NowHere are all the reported sewage overflow totals for West Lancashire in 2024. 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 CSOs 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 | 45 | 829 | 99.5 |
| United Utilities | Castle Brook | WESTHEAD WWTW | 84 | 596 | 94.8 |
| United Utilities | River Douglas | MILL LANE CSO 49201 | 130 | 592 | 99.4 |
| United Utilities | Simonswood Brook | BARROWNOOK WWTW | 80 | 476 | 99.9 |
| United Utilities | Boathouse Sluice | BURSCOUGH WWTW | 25 | 302 | 100 |
| United Utilities | Hey Cop Drain, River Alt | HILLHOUSE WWTW | 56 | 214 | 100 |
| United Utilities | River Tawd Via Sws | 194 ORMSKIRK ROAD CSO | 69 | 156 | 99.2 |
| United Utilities | River Douglas | SKELMERSDALE WWTW SKELM | 36 | 130 | 100 |
| United Utilities | River Tawd Via Sws | NEAR TAWD VALE INN CSO | 39 | 69 | 93.5 |
| United Utilities | Bickerstaffe Brook | BICKERSTAFFE W.WATER PUMP STATION | 12 | 40 | 100 |
| United Utilities | Pond Rivtawd Via Sws | O/S 1 TEVERSHAM CSO | 20 | 22 | 99.4 |
| United Utilities | River Tawd | NR FIRE STN ORMSKIRK RD | 11 | 8 | 85.5 |
| United Utilities | Eller Brook Via Sws | DERBY STREET CSO (49200) | 10 | 7 | 100 |
| United Utilities | Fine Janes Brook | AINSDALE WASTEWATER TREATMENT WORKS | 1 | 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. 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.
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