It's a Dirty Business

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Macclesfield - 2025 Sewage

Polluted by sewage 1,301 hours in 2025 , monitoring offline 4,993 hours , potential overflows 431 hours

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

Which Year?

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✔ means we have live data (𝑥 if not)

View Annual Sewage Data

You're looking at the totals that we have calculated for sewage in Macclesfield 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 - 360 hours , 6 potential
Feb - 5 hours , 80 offline
Mar - 25 hours , 415 potential
Apr - 0 hours , 712 offline
May - 29 hours , 128 offline
Jun - 49 hours , 5 offline
Jul - 14 hours , 2 offline
Aug - 7 hours
Sept - 152 hours , 0 potential
Oct - 87 hours , 0 potential
Nov - 229 hours , 1,440 offline
Dec - 338 hours , 8 potential
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
United Utilities Disley PS River Goyt 64 255 h 43m 5 h
United Utilities MACCLESFIELD WwTW River Bollin 41 239 h 19m 0 h
United Utilities Disley PS River Goyt 22 202 h 47m 8 h
United Utilities MACCLESFIELD WwTW River Bollin 18 135 h 14m 0 h
United Utilities 18/20 Beech Farm Drive CSO River Bollin 40 71 h 32m -
United Utilities River Bank Close CSO River Dean 46 70 h 14m 1,647 h
United Utilities Westminster Road CSO River Bollin 45 56 h 7m -
United Utilities Hibel Road CSO River Bollin 11 39 h 5m -
United Utilities 18/20 Beech Farm Drive CSO River Bollin 11 38 h 46m -
United Utilities Westminster Road CSO River Bollin 11 37 h 7m -
United Utilities Roewoods Outfall Sewer (27206) (MAC0028) River Bollin 19 29 h 46m -
United Utilities Cartmel Close (Macclesfield) Combined Sewer Overflow (Site ID 273BV) (MAC0061) River Bollin 8 24 h 26m 415 h
United Utilities Barnaby Road CSO Poynton Brook Via Sws 4 18 h 46m 89 h
United Utilities Hibel Road CSO River Bollin 5 15 h 10m -
United Utilities Water Street CSO River Roch 14 14 h 16m -
United Utilities Adlington Road (Bollington Park) CSO River Dean 7 14 h 12m 28 h
United Utilities Palmerston Street/Shrigley Road CSO Harrop Brook 11 10 h 34m 3 h
United Utilities Roewoods Outfall Sewer (27206) (MAC0028) River Bollin 9 10 h 32m -
United Utilities Palmerston Street/Shrigley Road CSO Harrop Brook 7 3 h 44m -
United Utilities Barnaby Road CSO Poynton Brook Via Sws 2 2 h 46m -
United Utilities 20 Adlington Road CSO River Dean 3 2 h 18m 89 h
United Utilities Water Street CSO River Roch 5 2 h 8m -
United Utilities Allen Street/Lord Street CSO River Dean 5 1 h 58m 866 h
United Utilities Waters Green (Dams Valley) CSO River Bollin 2 1 h 40m 1 h
United Utilities Banbury Close CSO Shoresclough Brook 2 1 h 24m 26 h
United Utilities 20 Adlington Road CSO River Dean 4 0 h 38m 0 h
United Utilities Adlington Road (Bollington Park) CSO River Dean 1 0 h 18m -
United Utilities Banbury Close CSO Shoresclough Brook 1 0 h 18m -
United Utilities Cartmel Close (Macclesfield) Combined Sewer Overflow (Site ID 273BV) (MAC0061) River Bollin 1 0 h 18m -
United Utilities BEECH BRIDGE SOUTH CSO River Bollin 2 0 h 18m -
United Utilities BEECH BRIDGE SOUTH CSO River Bollin 0 0 h -
United Utilities River Bank Close CSO River Dean 0 0 h 2,241 h
United Utilities Waters Green (Dams Valley) CSO River Bollin 0 0 h -
United Utilities Allen Street/Lord Street CSO River Dean 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.