It's a Dirty Business

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St Helens North - 2025 Sewage

Polluted by sewage 2,799 hours in 2025 , monitoring offline 4,568 hours , potential overflows 14 hours

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

Which Year?

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View Annual Sewage Data

You're looking at the totals that we have calculated for sewage in St Helens North for 2025. It is an estimate, based on very poor quality live data from the Water Companies. This may not align with the 'official' reported sewage values from the water companies, which is reported in April following then end of the year - so 2025 numbers are reported in April 2026.

What's a potential overflow? If the CSO goes 'Offline' while its Overflowing, we don't know if it stopped overflowing until we get a 'Stop' event.

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Daily Data

Jan - 692 hours , 2 potential
Feb - 8 hours , 10 offline
Mar - 6 hours , 0 potential
Apr - 3 hours , 0 offline
May - 23 hours , 2 offline
Jun - 34 hours , 2 offline
Jul - 5 hours , 1,463 offline
Aug - 6 hours , 1,488 offline
Sept - 257 hours , 9 potential
Oct - 149 hours , 33 offline
Nov - 615 hours , 1 potential
Dec - 974 hours , 0 potential
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
United Utilities Lodge Lane (Near Ellams Brook) CSO Dean Dam 18 423 h 41m -
United Utilities West End Wharf Road CSO Sankey Brook 20 420 h 50m -
United Utilities St Helens Wastewater Treatment Works (Site STHEL) (016920130) Sankey Brook 31 347 h 32m -
United Utilities BILLINGE SOUTH PUMPING STATION Black Brook 16 163 h 35m 2,157 h
United Utilities Folds Road CSO Black Brook 55 161 h 33m 0 h
United Utilities St Helens Wastewater Treatment Works (Site STHEL) (016920130) Sankey Brook 14 157 h 43m -
United Utilities Red Brow Wood CSO Sankey Canal 32 125 h 43m 0 h
United Utilities Wharf Road CSO Sankey Brook 38 103 h 3m 1 h
United Utilities 10 Warwick Avenue CSO Newton Brook 31 101 h 47m 105 h
United Utilities Lodge Lane (Near Ellams Brook) CSO Dean Dam 13 80 h 17m -
United Utilities St Helens Wastewater Treatment Works (Site STHEL) (016920130) Sankey Brook 17 79 h 11m -
United Utilities West End Wharf Road CSO Sankey Brook 15 65 h 52m 7 h
United Utilities BILLINGE SOUTH PUMPING STATION Black Brook 6 65 h 51m -
United Utilities Carr Mill Road CSO Black Brook Via Sws 22 58 h 19m -
United Utilities Washway Lane CSO Rainford Brook 26 53 h 44m -
United Utilities Malvern Road (St.Helens) CSO Sankey Brook 18 52 h 59m 2 h
United Utilities Folds Road CSO Black Brook 14 50 h 27m -
United Utilities Red Brow Wood CSO Sankey Canal 7 47 h 56m -
United Utilities Berrys Lane Sutton Brook Via Sws 12 39 h 28m 0 h
United Utilities Vicarage Road CSO Clipsley Brook 5 34 h 36m 34 h
United Utilities 10 Warwick Avenue CSO Newton Brook 7 32 h 13m 53 h
United Utilities Wharf Road CSO Sankey Brook 8 30 h 10m 1 h
United Utilities Rudd Avenue SSO Sankey Brook 7 27 h 51m -
United Utilities St Helens Wastewater Treatment Works (Site STHEL) (016920130) Sankey Brook 7 18 h 10m -
United Utilities Penkford Bridge Sankey Brook 8 14 h 6m 0 h
United Utilities Malvern Road (St.Helens) CSO Sankey Brook 6 13 h 6m -
United Utilities Carr Mill Road CSO Black Brook Via Sws 6 12 h 10m -
United Utilities Washway Lane CSO Rainford Brook 8 10 h 22m -
United Utilities Berrys Lane Sutton Brook Via Sws 2 5 h 20m -
United Utilities Penkford Bridge Sankey Brook 3 1 h 12m -
United Utilities Wargrave Road CSO Newton Brook 2 0 h 22m 58 h
United Utilities Grange Valley Freshwater Stteam 2 0 h 22m 2 h
United Utilities Troutbeck Road CSO Millingford Brook 1 0 h 14m -
United Utilities Rudd Avenue SSO Sankey Brook 0 0 h -
United Utilities Gloucester Street CSO Sankey Brook 0 0 h -
United Utilities BILLINGE SOUTH PUMPING STATION Black Brook 0 0 h -
United Utilities BILLINGE SOUTH PUMPING STATION Black Brook 0 0 h 2,158 h
United Utilities Wargrave Road CSO Newton Brook 0 0 h 0 h
United Utilities Troutbeck Road CSO Millingford Brook 0 0 h -
United Utilities Grange Valley Freshwater Stteam 0 0 h -
United Utilities Vicarage Road CSO Clipsley Brook 0 0 h -

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.