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Polluted by sewage 63 hours in 2026 , monitoring offline 3,299 hours , potential overflows 96 hours so far..
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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Donate Now| Company | Site Name | Receiving Waterway | Overflow Days | Total Duration (hours) | Offline/Potential Pollution |
|---|---|---|---|---|---|
| Anglian Water | CHELMSFORD-AVON ROAD SSO | River Can | 55 | 62h 11m | 96 h |
| Anglian Water | GT BADDOW-BRAMSTON CL OV | Baddow Brook | 2 | 0h 59m | - |
| Anglian Water | CHELMSFORD-GALLEYWOOD RD SP | River Wid | 1 | 0h 13m | - |
| Anglian Water | GT BADDOW-BRAMSTON CL OV | Baddow Brook | 0 | 0h | - |
| Anglian Water | CHELMSFORD-BUTTS WAY SP | River Wid | 0 | 0h | 3,299 h |
| Anglian Water | GT BADDOW HIGH ST/TABORS HL OV | Baddow Brook | 0 | 0h | - |
| Anglian Water | SPRINGFIELD-UPLANDS SP | R Chelmer | 0 | 0h | - |
| Anglian Water | GT BADDOW HIGH ST/TABORS HL OV | Baddow Brook | 0 | 0h | - |
| Anglian Water | GT BADDOW VICARAGE LANE OV | Baddow Brook | 0 | 0h | - |
| Anglian Water | CHELMSFORD-AVON ROAD SSO | River Can | 0 | 0h | - |
| Anglian Water | SPRINGFIELD-UPLANDS SP | R Chelmer | 0 | 0h | - |
| Anglian Water | GT BADDOW VICARAGE LANE OV | Baddow Brook | 0 | 0h | - |
| Anglian Water | CHELMSFORD-GALLEYWOOD RD SP | River Wid | 0 | 0h | - |
| Anglian Water | CHELMSFORD-BUTTS WAY SP | River Wid | 0 | 0h | - |
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.
Get in touch if you have queries or want to discuss our data.
press [at] top-of-the-poops.org