West Lancashire was polluted by sewage 938 times in 2023
lasting 5,948 hours
- but monitoring was disabled in some locations, so could be more

© OpenStreetMap contributors
Contains OS Data © Crown copyright & database right 2021-2023
© Top of the Poops 2021-2023
✔ means we have experimental daily data since 2023
Totals for West Lancashire in 2023
13 Sites polluted by United Utilities
938 sewage dumps
5,948 h duration
That's 8.26 months. On average 2.6 times a day
Change Over Time
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Pollution Summary 2023

Here are all the reported sewage overflow totals for West Lancashire in 2023. 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 1 of the total 14 CSO locations had reporting enabled for less than half the year, of which 1 had zero reporting.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
United Utilities River Douglas WIGAN WASTEWATER TREATMENT WORKS 77 1,192 100
United Utilities Castle Brook WESTHEAD WWTW 126 1,173 95.3
United Utilities River Douglas MILL LANE CSO 49201 151 1,131 91.1
United Utilities Hey Cop Drain, River Alt HILLHOUSE WWTW 79 677 99.9
United Utilities Simonswood Brook BARROWNOOK WWTW 104 674 99.8
United Utilities River Tawd NR FIRE STN ORMSKIRK RD 146 353 97.4
United Utilities Boathouse Sluice BURSCOUGH WWTW 25 329 100
United Utilities River Tawd Via Sws 194 ORMSKIRK ROAD CSO 73 169 91.5
United Utilities River Douglas SKELMERSDALE WWTW SKELM 55 148 99.85
United Utilities River Tawd Via Sws NEAR TAWD VALE INN CSO 49 40 100
United Utilities Pond Rivtawd Via Sws O/S 1 TEVERSHAM CSO 34 31 100
United Utilities Fine Janes Brook AINSDALE WASTEWATER TREATMENT WORKS 4 15 100
United Utilities Eller Brook Via Sws DERBY STREET CSO (49200) 15 11 100
United Utilities Bickerstaffe Brook BICKERSTAFFE W.WATER PUMP STATION 0 0 0

Data Sources & Accuracy

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.