Ellesmere Port and Neston polluted by sewage 832 times in 2023 - lasting 5,752 hours
- but monitoring was disabled in some locations, so could be more

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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 Ellesmere Port and Neston in 2023
16 Sites polluted by Dwr Cymru Welsh Water, United Utilities
832 sewage dumps
5,752 h duration
That's 7.99 months. On average 2.3 times a day
Change Over Time

Pollution Summary 2023

Here are all the reported sewage overflow totals for Ellesmere Port and Neston 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 2 of the total 21 CSO locations had reporting enabled for less than half the year, of which 2 had zero reporting.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Dwr Cymru Welsh Water Stanney Brook NESTON WASTEWATER TREATMENT WORKS 117 1,217 100
United Utilities Stanney Mill Brook MICKLE TRAFFORD PUMPING STATION 122 1,201 99.8
Dwr Cymru Welsh Water Dee Estuary NESTON PARKGATE PUMPING STATION 127 1,029 99.9
United Utilities Dibbinsdale Brook HOOTON ROAD CSO 181ZR 92 891 100
United Utilities Thornton Brook/River Gowy ELLESMERE PORT WWTW 91 710 99.9
United Utilities Manchester Ship Canal TOWN PUMPING STATION 36 266 89.3
United Utilities Rivacre Brook RIVACRE VALLEY PARK CSO 40 102 100
United Utilities Little Stanney Drain THORNTON ROAD ELLESMERE PORT CSO 46 101 97.2
Dwr Cymru Welsh Water Dee Estuary HARP INN CSO 57 84 100
Dwr Cymru Welsh Water Stanney Brook TANKFIELDS CSO 47 74 100
Dwr Cymru Welsh Water Unnamed Watercourse GLADSTONE ROAD CSO 9 19 100
United Utilities Rivacre Brook VALLEY DRIVE CSO 14 19 100
United Utilities Rivacre Brook, Mersey RIVACRE VALLEY PARK CSO 7 14 95.2
Dwr Cymru Welsh Water Dee Estuary 5 DEE COTTAGES CSO 3 7 48.9
Dwr Cymru Welsh Water Dee Estuary GREENFIELDS DRIVE CSO 21 7 100
United Utilities West Central Drain, Mersey Est ELTON PS 3 6 100
United Utilities Manchester Ship Canal WHITBY ROAD COMBINED SEWER OVERFLOW 0 0 100
Dwr Cymru Welsh Water Clatter Brook CSO AT WILLASTON MILL SPS 0 0 100
Dwr Cymru Welsh Water Dee Esturary EARLE DRIVE - PARKGATE ROAD CSO 0 0 15.6
Dwr Cymru Welsh Water River Dee Estuary MARSHLANDS ROAD PS 0 0 0
United Utilities Dibbinsdale Brook WILLASTON RELIEF SEWER 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

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.