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Liverpool

Polluted by sewage 508 times in 2025 lasting 2,323 hours

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Totals for Liverpool in 2025

25 Sites polluted by United Utilities

508 sewage dumps

2,323 hours duration

That's 3.23 months. On average 1.4 times a day

Change Over Time

Constituency for Liverpool

Nearby Constituencies

Waterways in Liverpool

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Pollution Summary 2025

Here are all the reported sewage overflow totals for Liverpool 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 Mersey Estuary	LIVERPOOL WWTW	178	996	100
United Utilities	Ditton Brook	HUYTON WASTEWATER TREATMENT WORKS	54	434	99.15
United Utilities	Halewood Brook	WOOLTON STW	23	209	87
United Utilities	River Alt	FAZAKERLEY WWTW	18	168	99.7
United Utilities	Mersey Estuary	SOUTHERN RELIEF CSO	46	159	100
United Utilities	Mersey Estuary	DINGLE COMBINED SEWER OVERFLOW	39	68	100
United Utilities	Mersey Estuary	GARSTON CSO LIVERPOOL	23	62	100
United Utilities	Lady Pool	HALE ROAD / DINNER LANE CSO	12	43	99.7
United Utilities	Mersey Estuary	BANKHALL RELIEF CSO 99005	20	39	100
United Utilities	River Alt	MELLING WWTW	5	27	99.9
United Utilities	Mersey Estuary	MERSEY ROAD COMBINED SEWER OVERFLOW	12	23	100
United Utilities	Unknown	WINDBOURNE CSO	7	20	100
United Utilities	Mersey Estuary	JERICHO LANE CSO	6	19	100
United Utilities	Mersey Estuary	GRASSENDALE COMBINED SEWER OVERFLOW	10	16	100
United Utilities	River Mersey Estuarine Waters	BANKHALL RELIEF CSO 99005	7	10	100
United Utilities	River Alt	CROXTETH HALL LANE CSO 261QD	4	5	100
United Utilities	River Mersey Estuary	FULWOOD CSO	7	4	100
United Utilities	River Mersey Estuary	BEACONS GUTTER SSO	10	4	100
United Utilities	Mersey Estuary	ST NICHOLAS STORM SEWER OVERFLOW	7	3	100
United Utilities	Mersey Estaury	HALEWOOD PUMPING STATION	2	2	100
United Utilities	Mersey Estuary	SANDHILLS LANE CSO	3	1	100
United Utilities	River Mersey	BANKHALL CSO 99007 LIV0038	6	1	100
United Utilities	Mersey Estuary	GOWER ST/KINGS DOCK CSO	4	0	100
United Utilities	Mersey Estuary	BATTERY LANE CSO	2	0	100
United Utilities	River Mersey Estuary	PARK STREET COMBINED SEWER OVERFLOW	3	0	100
United Utilities	River Mersey Estuary	MILLERS BRIDGE CSO 99004	0	0	100
United Utilities	Un-Named Of River Alt	HUYTON FARM PUMPING STATION	0	0	99.3

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.

Analysing sewage pollution by the Water Industry

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