St Helens North - 2025 Sewage

Polluted by sewage 2,799 hours in 2025 , monitoring offline 4,566 hours , potential overflows 14 hours

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

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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.

Totals for St Helens North in 2025

Sewage2,799 hours
Monitoring offline4,566 hours
Potential pollution14 hours
Storm overflows41

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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 423h 41m -
United Utilities West End Wharf Road CSO Sankey Brook 20 420h 50m -
United Utilities St Helens Wastewater Treatment Works (Site STHEL) (016920130) Sankey Brook 31 347h 32m -
United Utilities BILLINGE SOUTH PUMPING STATION Black Brook 16 163h 35m 2,156 h
United Utilities Folds Road CSO Black Brook 55 161h 33m 0 h
United Utilities St Helens Wastewater Treatment Works (Site STHEL) (016920130) Sankey Brook 14 157h 43m -
United Utilities Red Brow Wood CSO Sankey Canal 32 125h 43m 0 h
United Utilities Wharf Road CSO Sankey Brook 38 103h 3m 1 h
United Utilities 10 Warwick Avenue CSO Newton Brook 31 101h 47m 105 h
United Utilities Lodge Lane (Near Ellams Brook) CSO Dean Dam 13 80h 17m -
United Utilities St Helens Wastewater Treatment Works (Site STHEL) (016920130) Sankey Brook 17 79h 11m -
United Utilities West End Wharf Road CSO Sankey Brook 15 65h 52m 7 h
United Utilities BILLINGE SOUTH PUMPING STATION Black Brook 6 65h 51m -
United Utilities Carr Mill Road CSO Black Brook Via Sws 22 58h 19m -
United Utilities Washway Lane CSO Rainford Brook 26 53h 44m -
United Utilities Malvern Road (St.Helens) CSO Sankey Brook 18 52h 59m 2 h
United Utilities Folds Road CSO Black Brook 14 50h 27m -
United Utilities Red Brow Wood CSO Sankey Canal 7 47h 56m -
United Utilities Berrys Lane Sutton Brook Via Sws 12 39h 28m 0 h
United Utilities Vicarage Road CSO Clipsley Brook 5 34h 36m 34 h
United Utilities 10 Warwick Avenue CSO Newton Brook 7 32h 13m 53 h
United Utilities Wharf Road CSO Sankey Brook 8 30h 10m 1 h
United Utilities Rudd Avenue SSO Sankey Brook 7 27h 51m -
United Utilities St Helens Wastewater Treatment Works (Site STHEL) (016920130) Sankey Brook 7 18h 10m -
United Utilities Penkford Bridge Sankey Brook 8 14h 6m 0 h
United Utilities Malvern Road (St.Helens) CSO Sankey Brook 6 13h 6m -
United Utilities Carr Mill Road CSO Black Brook Via Sws 6 12h 10m -
United Utilities Washway Lane CSO Rainford Brook 8 10h 22m -
United Utilities Berrys Lane Sutton Brook Via Sws 2 5h 20m -
United Utilities Penkford Bridge Sankey Brook 3 1h 12m -
United Utilities Wargrave Road CSO Newton Brook 2 0h 22m 58 h
United Utilities Grange Valley Freshwater Stteam 2 0h 22m 2 h
United Utilities Troutbeck Road CSO Millingford Brook 1 0h 14m -
United Utilities Rudd Avenue SSO Sankey Brook 0 0h -
United Utilities Gloucester Street CSO Sankey Brook 0 0h -
United Utilities BILLINGE SOUTH PUMPING STATION Black Brook 0 0h -
United Utilities BILLINGE SOUTH PUMPING STATION Black Brook 0 0h 2,157 h
United Utilities Wargrave Road CSO Newton Brook 0 0h 0 h
United Utilities Troutbeck Road CSO Millingford Brook 0 0h -
United Utilities Grange Valley Freshwater Stteam 0 0h -
United Utilities Vicarage Road CSO Clipsley Brook 0 0h -

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

Annual figures up to and including 2025 come from official water company returns. The 2026 figure is our own estimate, derived continuously from the companies' live data feeds.

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.