Runcorn and Helsby

Polluted by sewage 850 times in 2024 lasting 4,857 hours

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

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✔ means we have experimental daily data since 2023

Live data for Runcorn and Helsby in 2025

So far this year (as of Apr 30, 2025, 9:00 AM) there has been 1,032 hours of sewage overflows

Totals for Runcorn and Helsby in 2024

25 Sites polluted by United Utilities
850 sewage dumps
4,857 hours duration
That's 6.75 months. On average 2.3 times a day

Change Over Time

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Daily Data

We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for Runcorn and Helsby, here you can see overflows in red, the darker the red, the more the CSO overflowed that day.

Each CSO has a row, the most recent data is on the right hand side.

Monitoring Online
Monitoring Offline
Polluting
Potentially Polluting
Unknown
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Pollution Summary 2024

Here are all the reported sewage overflow totals for Runcorn and Helsby 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 CSOs appeared to have monitoring enabled for more than 50% of the year

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
United Utilities Stanney Mill Brook MICKLE TRAFFORD PUMPING STATION 167 1,853 99.9
United Utilities Thornton Brook/River Gowy ELLESMERE PORT WWTW 91 885 99.9
United Utilities M/C Ship Canal RUNCORN WASTEWATER TREATMENT WORKS 63 719 100
United Utilities Manchester Ship Canal TOWN PUMPING STATION 62 455 99.9
United Utilities River Weaver NEWTOWN PUMPING STATION 47 272 100
United Utilities Hornsmill Brook HELSBY WWTW 34 216 99.1
United Utilities Manchester Ship Canal PENN LANE WESTON POINT PR CSO 202LE 65 113 99.1
United Utilities Manchester Ship Canal HALTON BROW CSO 203EF 79 105 98.4
United Utilities Manchester Ship Canal HARDWICK ROADCSO 24 73 99.1
United Utilities West Central Drain, Mersey Est ELTON PS 16 47 100
United Utilities River Weaver WATERSIDE DRIVE CSO 472H4 27 46 98.9
United Utilities Main Drain HIGH STREET/MOORS LANE CSO 29 21 99
United Utilities Manchester Ship Canal RUNCORN ROAD CSO 16 11 99.2
United Utilities Frodsham Marsh Ditch HATLEY LANE COMBINED SEWER OVERFLOW 17 7 99
United Utilities Manchester Ship Canal THE BROW CSO 202UP 12 6 99
United Utilities River Mersey TRENTHAM P.S 46 5 100
United Utilities Willow Brook RUNCORN TOWN HALL CSO 3 3 99.3
United Utilities River Weaver BRIDGE LANE QUAYSIDE CSO 10 2 99.1
United Utilities Manchester Ship Canal WATERLOO ROAD CSO (202ZW) 9 1 96.2
United Utilities Hornsmill Brook HAPSFORD SPS 3 1 100
United Utilities Unknown WINDSOR GROVE 8 1 97.1
United Utilities River Mersey DARESBURY COMBINED SEWER OVERFLOW 8 1 80.1
United Utilities Bridgewater Canal Via Sws DOWNS ROAD COMBINED SEWER OVERFLOW 7 1 98.8
United Utilities Kingsley Brook OFF WELL LANE KINGSLEY CSO (472JN) 3 1 99.4
United Utilities Unknown LABURNUM GROVE 4 0 90.5
United Utilities Weaver Navigation SOUTH PARADE CSO 202S2 0 0 93.7
United Utilities Manchester Ship Canal Via Sws SALTWORKS PUMPING STATION 0 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. 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.