River Mersey Estuary polluted by sewage 1,343 times in 2022 - lasting 6,612 hours

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Totals for River Mersey Estuary in 2022
21 Sites polluted by United Utilities
1,343 sewage dumps
6,612 h duration
That's 9.18 months. On average 3.7 times a day

Pollution Summary 2022

Here are all the reported sewage overflow totals for River Mersey Estuary in 2022. Sometimes sewage can be being dumped for months at a time.

These numbers are very slightly different from the Rivers page - This is because there is an invalid grid reference on the pollution consent - so we don't know where the CSO is. We're working on it.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
United Utilities River Mersey Estuary BROMBOROUGH WWTW 233 2,366 100
United Utilities River Mersey Estuary WIDNES WWTW 173 1,146 100
United Utilities River Mersey Estuary WALLASEY WW PUMPING STATION 225 926 99.93
United Utilities River Mersey Estuary DOCK ROAD SOUTH CSO 114 754 100
United Utilities River Mersey Estuary LIVERPOOL WWTW 166 556 100
United Utilities River Mersey Estuary OS 49 ST ANDREWS ROAD CSO 38028 75 334 95.8
United Utilities River Mersey Estuary OPPOSITE 53 MOOR LANE CSO 382G6 91 193 100
United Utilities River Mersey Estuary O/S51 MOORLAND AVE CSO 382G6 91 191 100
United Utilities River Mersey Estuary DIBBS LANE CSO 381RT 45 57 95.3
United Utilities River Mersey Estuary COLLEGE ROAD ESHE ROAD CSO 38109 32 36 100
United Utilities River Mersey Estuary O/S 107 LIVERPOOL ROAD CSO 382D3 25 19 99.4
United Utilities River Mersey Estuary WINDBOURNE CSO 5 7 100
United Utilities River Mersey Estuary THE BYPASS/LPOOL RD JUNCT CSO 382UR 23 6 100
United Utilities River Mersey Estuary BOOTLE NORTHERN OPC CSO 99102 12 3 0
United Utilities River Mersey Estuary RIMROSE BROOK CSO 13 3 100
United Utilities River Mersey Estuary BEACONS GUTTER SSO 9 2 100
United Utilities River Mersey Estuary OUTSIDE 16 CORONATION RD CSO 381PQ 6 2 94.7
United Utilities River Mersey Estuary FULWOOD CSO 1 2 100
United Utilities River Mersey Estuary MILLERS BRIDGE CSO 99004 1 0 99.9
United Utilities River Mersey Estuary PARK STREET COMBINED SEWER OVERFLOW 2 0 99.9
United Utilities River Mersey Estuary WALLASEY COASTAL DRIVE 51052 1 0 100
United Utilities River Mersey Estuary TANHOUSE LANE 0 0 0
United Utilities River Mersey Estuary DIBBS LANE CSO 381RT 0 0 0
United Utilities River Mersey Estuary MAYFIELD DRIVE PS1 CSO 512EZ 0 0 100

Data Sources & Accuracy

EDM (Event Duration Monitoring) data and Consented Discharges to Controlled Waters with Conditions from Environment Agency & Data Map Wales

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.