Blackley and Middleton South - Live Sewage

Polluted by sewage 804 hours in 2026 , monitoring offline 2,262 hours , potential overflows 3,114 hours so far..

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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 Blackley and Middleton South so far for 2026. It is an estimate, based on very poor quality live data from the Water Companies. The water companies report their sewage to the Environment Agency every year in April. You can see the last reported year in the other page

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 Blackley and Middleton South in 2026

Sewage804 hours
Monitoring offline2,262 hours
Potential pollution3,114 hours
Storm overflows90

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Daily Data

Jan - 45 hours , 614 offline
Feb - 102 hours , 673 offline
Mar - 169 hours , 298 potential
Apr - 14 hours , 720 potential
May - 25 hours , 744 potential
Jun - 0 hours , 720 potential
Jul - 0 hours , 612 potential
Aug - 222 hours , 18 potential
Sept - 87 hours , 31 offline
Oct - 136 hours , 0 offline
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
United Utilities Rochdale Road/Collyhurst CSO River Irk 65 216h 30m -
United Utilities Boothroyden Road CSO River Irk 44 195h 17m 3,095 h
United Utilities Smedley Road CSO River Irk 10 103h 32m 209 h
United Utilities MIDDLETON MAIN OUTFALL CSO River Irk 41 88h 18m -
United Utilities Mainway/Worcester Road CSO Boardman Brook 23 59h 14m -
United Utilities Moston Lane/Rochdale Road CSO River Irk 20 29h 26m -
United Utilities Middleton Old Road CSO (Site ID - 28064/28CSO143) River Irk 22 26h 52m -
United Utilities Victoria Avenue/Glenbrook CSO River Irk Via Sws 7 14h 48m 2,016 h
United Utilities Whiteley Drive CSO Wince Brook 17 14h 44m 0 h
United Utilities Mill Brow/Blackley Road CSO Culverted River Irk 24 11h 12m 1 h
United Utilities Lathbury Road (Adjacent to the footpath) Combined Sewer Overflow Moston Brook 10 10h 8m -
United Utilities Cleveland/Delauney's Road CSO River Irk 14 7h -
United Utilities QUEENS ROAD CSO Moss Brook 9 4h 18m -
United Utilities Waterloo Street/Crescent Road CSO River Irk 7 4h 2m 24 h
United Utilities POTTERS LANE CSO Culverted Section Moston Brook 5 2h 54m 0 h
United Utilities LATHBURY ROAD / SILCHESTER DRIVE CSO Moston Brook 10 2h 42m -
United Utilities Chudleigh Road CSO River Irk Via Sws 7 2h -
United Utilities Rochdale/Collyhurst Road CSO Culv'Ted Section Of Moss Brook 7 1h 48m 0 h
United Utilities Cleveland Road/Delaunays CSO River Irk 4 1h 22m -
United Utilities BLACKLEY NEW ROAD CSO River Irk 7 1h 22m -
United Utilities Manchester New Road Combined Sewer Overflow Boardman Brook 4 1h 10m -
United Utilities Rochdale Road/Alfreton Street CSO River Irk 4 1h 8m 2 h
United Utilities VICTORIA AVENUE/RIVER IRK CSO River Irk 3 1h 6m -
United Utilities Greengate CSO Wince Brook 4 1h 0 h
United Utilities Mill Brow/Blackley New Road CSO A Culverted Section River Irk 6 0h 58m -
United Utilities Manchester Old Road CSO River Irk 3 0h 36m -
United Utilities Blackley New Road CSO River Irk 2 0h 30m -
United Utilities Queens Road/Scorpton Street CSO Culverted Section Moston Brook 2 0h 26m -
United Utilities Kendall Road (Blackley) Combined Sewer Overflow River Irk Via Birch Brook Clvr 2 0h 18m -
United Utilities Central Avenue CSO River Irk 1 0h 12m -
United Utilities Glenbrook Road/Dexter Road CSO River Irk 1 0h 4m -
United Utilities Mainway/Lincoln Road Combined Sewer Overflow Wince Brook Via Sws 0 0h -
United Utilities Kenyon Lane CSO River Irk 0 0h -
United Utilities Rochdale Road/Alfreton Street CSO River Irk 0 0h -
United Utilities Queens Road/Hendham Vale CSO Culverted Section Moston Brook 0 0h -
United Utilities Mossway CSO Boardman Brook 0 0h -
United Utilities Smedley Road CSO River Irk 0 0h -
United Utilities VICTORIA AVENUE/RIVER IRK CSO River Irk 0 0h -
United Utilities WINDSOR ROAD / WINTERDYNE STREET CSO Moston Brook 0 0h -
United Utilities Kendall Road (Blackley) Combined Sewer Overflow River Irk Via Birch Brook Clvr 0 0h -
United Utilities QUEENS ROAD CSO Moss Brook 0 0h -
United Utilities MIDDLETON ROAD / VICTORIA AVENUE CSO River Irk 0 0h -
United Utilities Whiteley Drive CSO Wince Brook 0 0h -
United Utilities Cleveland Road/Delaunays CSO River Irk 0 0h -
United Utilities Dexter Road/Heaton Park Road CSO River Irk 0 0h -
United Utilities Blackley New Road CSO River Irk 0 0h -
United Utilities BLACKLEY NEW ROAD CSO River Irk 0 0h -
United Utilities Lathbury Road (Adjacent to the footpath) Combined Sewer Overflow Moston Brook 0 0h -
United Utilities Queens Road/Hendham Vale CSO Culverted Section Moston Brook 0 0h -
United Utilities South Blackley New Road CSO River Irk 0 0h -
United Utilities Moston Lane/Rochdale Road CSO River Irk 0 0h -
United Utilities Burton Street near Dalton Street CSO River Irk 0 0h -
United Utilities Central Avenue CSO River Irk 0 0h -
United Utilities POTTERS LANE CSO Culverted Section Moston Brook 0 0h -
United Utilities Middleton Old Road CSO (Site ID - 28064/28CSO143) River Irk 0 0h -
United Utilities MONSALL ROAD (J SEWER) CSO Culverted Moston Brook 0 0h 25 h
United Utilities Mill Brow/Blackley Road CSO Culverted River Irk 0 0h -
United Utilities Boothroyden Road CSO River Irk 0 0h -
United Utilities ROCHDALE ROAD / EGGINGTON STREET CSO Moston Brook 0 0h -
United Utilities Chudleigh Road CSO River Irk Via Sws 0 0h -
United Utilities Burton Street near Dalton Street CSO River Irk 0 0h -
United Utilities Rochdale/Collyhurst Road CSO Culv'Ted Section Of Moss Brook 0 0h -
United Utilities BRENTFORD STREET CSO Unnamed Watercourse 0 0h -
United Utilities BRENTFORD STREET CSO Unnamed Watercourse 0 0h -
United Utilities Kenyon Lane CSO River Irk 0 0h -
United Utilities Waterloo Street/Crescent Road CSO River Irk 0 0h -
United Utilities MIDDLETON ROAD / VICTORIA AVENUE CSO River Irk 0 0h -
United Utilities Rochdale Road/Collyhurst CSO River Irk 0 0h -
United Utilities Mossway CSO Boardman Brook 0 0h -
United Utilities Manchester Old Road CSO River Irk 0 0h -
United Utilities Hendham Vale CSO River Irk 0 0h -
United Utilities Kingsbridge Road CSO River Irk 0 0h -
United Utilities MIDDLETON MAIN OUTFALL CSO River Irk 0 0h -
United Utilities Mainway/Worcester Road CSO Boardman Brook 0 0h -
United Utilities Mainway/Lincoln Road Combined Sewer Overflow Wince Brook Via Sws 0 0h -
United Utilities Dexter Road/Heaton Park Road CSO River Irk 0 0h -
United Utilities Mill Brow/Blackley New Road CSO A Culverted Section River Irk 0 0h -
United Utilities Hendham Vale CSO River Irk 0 0h -
United Utilities Greengate CSO Wince Brook 0 0h -
United Utilities Manchester New Road Combined Sewer Overflow Boardman Brook 0 0h -
United Utilities LATHBURY ROAD / SILCHESTER DRIVE CSO Moston Brook 0 0h -
United Utilities ROCHDALE ROAD / EGGINGTON STREET CSO Moston Brook 0 0h -
United Utilities South Blackley New Road CSO River Irk 0 0h -
United Utilities WINDSOR ROAD / WINTERDYNE STREET CSO Moston Brook 0 0h -
United Utilities Kingsbridge Road CSO River Irk 0 0h -
United Utilities Cleveland/Delauney's Road CSO River Irk 0 0h -
United Utilities MONSALL ROAD (J SEWER) CSO Culverted Moston Brook 0 0h -
United Utilities Victoria Avenue/Glenbrook CSO River Irk Via Sws 0 0h -
United Utilities Queens Road/Scorpton Street CSO Culverted Section Moston Brook 0 0h -
United Utilities Glenbrook Road/Dexter Road CSO River Irk 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.