It's a Dirty Business

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Hazel Grove - 2025 Sewage

Polluted by sewage 3,154 hours in 2025 , monitoring offline 21,067 hours , potential overflows 40 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 Hazel Grove 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 - 836 hours , 27 potential
Feb - 40 hours , 1,596 offline
Mar - 18 hours , 1,488 offline
Apr - 0 hours , 1,480 offline
May - 76 hours , 6 potential
Jun - 138 hours , 5 potential
Jul - 75 hours , 2,289 offline
Aug - 13 hours , 2,281 offline
Sept - 367 hours , 2,163 offline
Oct - 208 hours , 1 potential
Nov - 540 hours , 1,479 offline
Dec - 839 hours , 938 offline
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
United Utilities Otterspool Road Combined Sewer Overflow River Goyt 85 423 h 5m 12 h
United Utilities Otterspool Road Combined Sewer Overflow River Goyt 26 303 h 33m -
United Utilities LOW MARPLE WwTW River Etherow 49 257 h 27m -
United Utilities Hazel Grove WwTW River Goyt 22 206 h 53m -
United Utilities Hurstheads Lane/Green Lane CSO River Goyt 58 195 h 6m -
United Utilities Hazel Grove WwTW River Goyt 18 158 h 27m -
United Utilities Compstall Road CSO River Goyt 46 156 h 16m -
United Utilities Coppiceside PS Bollinhurst Brook 15 135 h 47m -
United Utilities Coppiceside PS Bollinhurst Brook 20 126 h 51m -
United Utilities LOW MARPLE WwTW River Etherow 19 126 h 42m -
United Utilities STRINES WwTW River Goyt 16 126 h 40m -
United Utilities Bongs Valley PS River Goyt 28 124 h 5m 2,334 h
United Utilities Compstall Road (Romilly)CSO River Etherow 32 111 h 3m -
United Utilities Hurstheads Lane/Green Lane CSO River Goyt 17 97 h 45m -
United Utilities STRINES WwTW River Goyt 34 80 h 57m 998 h
United Utilities Compstall Road CSO River Goyt 15 71 h 28m -
United Utilities Town Street Combined Sewer Overflow (Site ID 439AB) (STK0138) River Goyt 13 62 h 18m -
United Utilities Bongs Road CSO River Goyt 25 54 h 34m -
United Utilities 56 Cross Lane combined sewer overflow (STK0152) Marple Brook 3 40 h 28m 456 h
United Utilities Bongs Valley PS River Goyt 13 39 h 37m 0 h
United Utilities Opposite 255 Buxton Road CSO Hazel Grove Brook 8 36 h 44m 6 h
United Utilities Buxton Road/Andrew Lane CSO Unnamed Brook 22 31 h 50m 10 h
United Utilities Torkington Road CSO Ocherley Brook 2 27 h 58m 39 h
United Utilities Manor Road PS River Tame 6 24 h 8m -
United Utilities BREDBURY UID CSO Crookilley Brook Via A Sws 6 21 h 19m 0 h
United Utilities Bongs Road CSO River Goyt 8 15 h 32m -
United Utilities Hazelwood Road combined sewer overflow (435GY) (STK0094) Poise Brook Rvr Goyt 11 15 h 16m 1 h
United Utilities Town Street Combined Sewer Overflow (Site ID 439AB) (STK0138) River Goyt 2 14 h 36m -
United Utilities Marple Road CSO Poise Brook 9 12 h 58m -
United Utilities Compstall Road (Romilly)CSO River Etherow 6 11 h 24m -
United Utilities Higher Bents Lane/Newlyn Road CSO Bredbury Stream Via Sws 5 8 h 44m 0 h
United Utilities Buxton Road/Andrew Lane CSO Unnamed Brook 6 8 h 20m -
United Utilities Compstall Road CSO River Etherow 5 7 h 24m 0 h
United Utilities Marple Road CSO Poise Brook 3 5 h 7m 0 h
United Utilities BREDBURY UID CSO Crookilley Brook Via A Sws 1 4 h 4m -
United Utilities 19 Wood Lane (Marple) CSO Torkington Brook Via Sws 1 3 h 32m 0 h
United Utilities Stockport Road CSO Marple Brook Via Sws 1 2 h 22m -
United Utilities Stockport Road West/Ashton Road CSO Crookilley Brook Via Sws 8 1 h 36m 29 h
United Utilities Manor Road PS River Tame 3 1 h 20m -
United Utilities Compstall Road CSO River Etherow 1 0 h 42m -
United Utilities Stockport Road West/Ashton Road CSO Crookilley Brook Via Sws 1 0 h 2m -
United Utilities 36 Hibbert Lane CSO Marple Brk Torkington Br 0 0 h 1 h
United Utilities Stockport Road CSO Marple Brook Via Sws 0 0 h -
United Utilities Hazelwood Road combined sewer overflow (435GY) (STK0094) Poise Brook Rvr Goyt 0 0 h -
United Utilities 242 Stockport Road West CSO Crookilley Brook Culvert 0 0 h 59 h
United Utilities 36 Hibbert Lane CSO Marple Brk Torkington Br 0 0 h -
United Utilities 56 Cross Lane combined sewer overflow (STK0152) Marple Brook 0 0 h -
United Utilities Torkington Road CSO Ocherley Brook 0 0 h -
United Utilities STRINES WwTW River Goyt 0 0 h 8,784 h
United Utilities Higher Bents Lane/Newlyn Road CSO Bredbury Stream Via Sws 0 0 h -
United Utilities Opposite 255 Buxton Road CSO Hazel Grove Brook 0 0 h -
United Utilities STRINES WwTW River Goyt 0 0 h 8,189 h
United Utilities 242 Stockport Road West CSO Crookilley Brook Culvert 0 0 h 180 h
United Utilities 19 Wood Lane (Marple) CSO Torkington Brook Via Sws 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.