Altrincham and Sale West was polluted by sewage 1,023 times in 2023
lasting 3,366 hours
- but monitoring was disabled in some locations, so could be more

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Contains OS Data © Crown copyright & database right 2021-2023
© Top of the Poops 2021-2023
✔ means we have experimental daily data since 2023
Totals for Altrincham and Sale West in 2023
16 Sites polluted by United Utilities
1,023 sewage dumps
3,366 h duration
That's 4.67 months. On average 2.8 times a day
Change Over Time
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Pollution Summary 2023

Here are all the reported sewage overflow totals for Altrincham and Sale West in 2023. Sometimes sewage can be being dumped for months at a time.

Reporting refers to how much of the time the monitoring was active. In this constituency 1 of the total 19 CSO locations had reporting enabled for less than half the year, of which 1 had zero reporting.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
United Utilities Sinderland Brook ALTRINCHAM STW 108 782 99.9
United Utilities River Bollin PARK ROAD ARTHOG ROAD CSO 452LS 141 574 100
United Utilities River Bollin DUNHAM MASSEY STW 94 543 99.4
United Utilities River Bollin POOL BANK FARM BOWDON CSO 452L6 114 425 100
United Utilities Timperley Brook OAKFIELD ST COMBINED SEWER OVERFLOW 66 265 76.7
United Utilities River Bollin Via Sws DUNHAM MASSEY OUTFALL CSO (451SS) 75 231 100
United Utilities Timperley Brook GOLF ROAD PUMPING STATION 73 131 84.6
United Utilities River Bollin BARROW LANE CSO (451G7) 72 91 100
United Utilities Timperley Brook BROOK CLOSE CSO 44 82 57
United Utilities Stromford Brook Via Sws MANOR AVENUE CSO (45056) 78 80 100
United Utilities Stromford Brk Rvr Mersey THE AVENUE SYPHON CSO 452UO 42 57 100
United Utilities Timperley Brook STAMFORD NEW ROAD CSO 62 47 99.9
United Utilities Manchester Ship Canal PARKGATE FARM (WARBURTON) CSO 38 41 100
United Utilities Sinderland Brook ALTRINHAM WWTW HIGH LEVEL OVERFLOW 7 5 100
United Utilities Stromford Brook MANOR AVENUE/FIRS ROAD CSO 7 5 99.9
United Utilities Timperley Brook BALFOUR ROAD CSO 2 1 100
United Utilities River Bollin CHAPEL LANE 0 0 0
United Utilities Timperley Brook HAWTHORN ROAD CSO 451YJ 0 0 99.5
United Utilities River Bollin Via Sws CECIL ROAD/ASHLEY ROAD CSO 0 0 100

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. This 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.