It's a Dirty Business

Watch Channel 4's documentary about the state of the water industry.

West Lancashire

Polluted by sewage 618 times in 2024 lasting 3,445 hours

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Contains OS Data © Crown copyright & database right 2021-2024
© Top of the Poops 2021-2024

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Live data for West Lancashire in 2026

So far this year (as of 13 Mar 2026, 13:15) there has been 218 hours of sewage overflows, from 46 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s

Totals for West Lancashire in 2024

14 Sites polluted by United Utilities
618 sewage dumps
3,445 hours duration
That's 4.78 months. On average 1.7 times a day

Change Over Time

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Pollution Summary 2024

Here 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 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 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

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. 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.