Top of the Poops | Constituency | St Helens South and Whiston| Polluted by United Utilities

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✔ means we have experimental daily data since 2023

Live data for St Helens South and Whiston in 2025

So far this year (as of Apr 30, 2025, 9:00 AM) there has been 125 hours of sewage overflows

Totals for St Helens South and Whiston in 2024

12 Sites polluted by United Utilities

219 sewage dumps

327 hours duration

That's 13.62 days. 4.2 times a week, on average

Change Over Time

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Constituencies near St Helens South and Whiston

Waterways in St Helens South and Whiston

Daily Data

We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for St Helens South and Whiston, 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

Daily data is experimental and data is not guaranteed to be accurate. Please inform us of any issue, we will fix.

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Pollution Summary 2024

Here are all the reported sewage overflow totals for St Helens South and Whiston 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 2 of the total 12 CSO locations had reporting enabled for less than half the year.

Company	Waterway	Site	Sewage Dumps	Duration (Hours)	Reporting %
United Utilities	Rainford Brook	HARESFINCH ROAD	37	108	96.9
United Utilities	Prescot Brook	MOLYNEUX DRIVE CSO 24009	34	58	13.3
United Utilities	Sutton Brook Sankey Brook	GASKELL STREET CSO	37	47	98.2
United Utilities	Hardshaw Brook	WARRINGTON NEW ROAD (42060)	20	34	100
United Utilities	Rainford Brook	SANKEY BROOK (ST HELENS) CSO	26	29	99.9
United Utilities	Hardshaw Brook	JACKSON STREET CSO	15	25	13.2
United Utilities	Eccleston Mere	ST HELENS ROAD CSO 422SZ	25	8	98.8
United Utilities	Sutton Mill Brook	LEACH LANE ST HELENS CSO	13	7	97.3
United Utilities	Hardshaw Brook	WARRINGTON NEW ROAD CSO	5	2	100
United Utilities	Sutton Brook	MOSS NOOK PS	3	2	100
United Utilities	Sutton Mill Brook	95 MILL LANE (ST. HELENS) CSO	3	1	99.5
United Utilities	Unknown	CRAB ST/DUKE ST	1	0	65.5

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.

Analysing sewage pollution by the Water Industry

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(C) 2020-2024 Top-Of-The-Poops CC-BY-SA 4.0,
(C) Openstreetmap contributors, Contains OS data © Crown copyright and database right 2021-2024,
Contains Water UK National Storm Overflow Hub Data CC-BY-SA 4.0 and analysis (C) 2024 Top-Of-The-Poops

St Helens South and Whiston Polluted by sewage 219 times in 2024 lasting 327 hours Monitoring fell below 50% in some locations so could be more

St Helens South and Whiston