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Polluted by sewage 1,135 times in 2024 lasting 3,861 hours
Monitoring fell below 50% in some locations so could be more
So far this year (as of Apr 30, 2025, 9:30 AM) there has been 3,577 hours of sewage overflows
Your local MP is Andrew Cooper (Labour) - Find out more about their interests, donors, and voting at They Work For You
We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for Mid Cheshire, here you can see overflows in red, the darker the red, the more the CSO overflowed that day.
Each CSO has a row, the most recent data is on the right hand side.
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Donate NowHere are all the reported sewage overflow totals for Mid Cheshire in 2024. 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 44 CSO locations had reporting enabled for less than half the year.
| Company | Waterway | Site | Sewage Dumps | Duration (Hours) | Reporting % |
|---|---|---|---|---|---|
| United Utilities | River Weaver | NORTHWICH WWTW | 83 | 768 | 99.5 |
| United Utilities | River Weaver | MEADOWBANK/BRADFORD RD PS | 47 | 448 | 100 |
| United Utilities | Rilshaw Brook | RILSHAW LANE | 78 | 368 | 98.3 |
| United Utilities | River Weaver | WINSFORD WASTEWATER TREATMENT WORKS | 78 | 313 | 96.35 |
| United Utilities | River Dane | MARLOWE ROAD (PLAYING FIELDS) CSO | 74 | 281 | 99.8 |
| United Utilities | Bogart Brook | MARTON NORTH WWTW | 23 | 221 | 100 |
| United Utilities | River Weaver | GREENBANK LANE CSO NORTHWICH | 56 | 201 | 96.1 |
| United Utilities | Wade Brook | 102 MIDDLEWICH ROAD CSO | 77 | 179 | 94.4 |
| United Utilities | Eldersbriar Brook | OUTSIDE 51 CHURCH STREET CSO 471JC | 51 | 127 | 95.1 |
| United Utilities | River Dane | MANORA ROAD (DANE NURSERIES) CSO | 66 | 104 | 100 |
| United Utilities | River Dane Via Sws | MIDDLEWICH RD/PARKFIELD RD CSO | 53 | 100 | 99.3 |
| United Utilities | River Croco | WARDLE BRIDGE PUMPING STATION | 31 | 84 | 100 |
| United Utilities | River Weaver | WINSFORD HILL STREET | 25 | 83 | 100 |
| United Utilities | River Croco | GASWORKS YARD PUMPING STATION | 32 | 79 | 100 |
| United Utilities | Weaver Navigation | NAVIGATION ROAD CSO (472HN) | 73 | 76 | 99.5 |
| United Utilities | Unknown | NANTWICH ROAD CHESTER RD CSO 131J6 | 44 | 73 | 99.9 |
| United Utilities | Handforth Brook Via Sws | 310-314 CHESTER ROAD CSO | 16 | 69 | 98.6 |
| United Utilities | River Weaver Via Sws | O/S 90 QUEENSWAY CSO | 21 | 65 | 97.2 |
| United Utilities | Unknown | BARONS QUAY PS | 4 | 46 | 100 |
| United Utilities | River Dane | OFF CARLTON ROAD CSO | 47 | 40 | 96.6 |
| United Utilities | River Dane Via Sws | 181 LONDON ROAD CSO | 32 | 36 | 99 |
| United Utilities | River Weaver | WEIR STREET COMBINED SEWER OVERFLOW | 10 | 27 | 99.8 |
| United Utilities | River Wheelock Via Sws | ST MICHAELS WAY CSO | 27 | 12 | 99.3 |
| United Utilities | River Dane Via Sws | 230 LONDON ROAD CSO | 23 | 12 | 99.2 |
| United Utilities | Peckmill Bk | MERE HEATH PUMPING STATION | 4 | 11 | 100 |
| United Utilities | River Weaver | CHURCH ST | 4 | 10 | 100 |
| United Utilities | River Weaver | WINNINGTON STREET CSO 472YM | 14 | 4 | 98.9 |
| United Utilities | Peckmill Brook Via Sws | REAR MEADOW LANE CSO | 4 | 2 | 11.6 |
| United Utilities | River Wheelock | 5 CROXTON RD PS | 7 | 2 | 100 |
| United Utilities | River Weaver | DOCK ROAD SPS | 7 | 1 | 100 |
| United Utilities | Weaver Navigation Via Sws | SPENCER STREET/DARWIN STREET CSO | 7 | 1 | 99.5 |
| United Utilities | Wade Brook | O/S 49 EDWARD ST | 3 | 1 | 97.8 |
| United Utilities | Peckmill Brook | OFF JACK LANE | 4 | 1 | 99.3 |
| United Utilities | Wade Brook | O/S 173 MIDDLEWICH RD | 3 | 1 | 99.2 |
| United Utilities | Culvert Dene Brook Viasws | DEAN STREET CSO (471RJ) | 2 | 0 | 97.2 |
| United Utilities | River Wheelock | NANTWICH ROAD CHESTER RD CSO 131J6 | 2 | 0 | 98.9 |
| United Utilities | River Weaver | SCHOOL LANE/LODGE LANE CSO | 2 | 0 | 85.3 |
| United Utilities | River Weaver Via Culvert | OFF JOHN ST CSO (472JC) | 1 | 0 | 99.3 |
| United Utilities | Eldersbriar Brook | CHURCH STREET CSO | 0 | 0 | 89.4 |
| United Utilities | Unknown | CHESTER WAY | 0 | 0 | 91.8 |
| United Utilities | Pettypool Brook | WHITEGATE WWTW | 0 | 0 | 100 |
| United Utilities | Wade Brook Via Sws | REAR OF 36 PETER STREET | 0 | 0 | 98.9 |
| United Utilities | Weaver Navigation | OFF SCHOOL LANE CSO (472JI) | 0 | 0 | 99.3 |
| United Utilities | Unknown | CASTLE ST | 0 | 0 | 90.5 |
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.
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Get in touch if you have queries or want to discuss our data.
press [at] top-of-the-poops.org