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Polluted by sewage 157 times in 2025 lasting 820 hours
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Donate NowHere are all the reported sewage overflow totals for Maldon in 2025. 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 all the declared CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s appeared to have monitoring enabled for more than 50% of the year
| Company | Waterway | Site | Sewage Dumps | Duration (Hours) | Reporting % |
|---|---|---|---|---|---|
| Anglian Water | Bradwell Brook Sea | TILLINGHAM STW | 20 | 205 | 99.9 |
| Anglian Water | Sandon Brook | RIGNALS LA CSO | 9 | 119 | 99.7 |
| Anglian Water | Mayland Creek River Blackwater | MAYLAND WATER RECYCLING CENTRE | 33 | 80 | 100 |
| Anglian Water | Mundon Wash River | PURLEIGH WATER RECYCLING CENTRE | 10 | 79 | 100 |
| Anglian Water | River Chelmer | LITTLE BADDOW PS | 17 | 73 | 99.1 |
| Anglian Water | Mayland Brook | NIPSELLS CHASE PS | 6 | 44 | 100 |
| Anglian Water | Asheldham Brook | DEVONSHIRE ROAD | 8 | 44 | 100 |
| Anglian Water | River Crouch | RUNWELL - BROCK HILL CSO | 23 | 43 | 96.7 |
| Anglian Water | Pennys Brook | MALDON WATER RECYCLING CENTRE | 4 | 36 | 100 |
| Anglian Water | Sandon Brook | HEATH ROAD PS | 2 | 29 | 100 |
| Anglian Water | River Blackwater | FAMBRIDGE RD - MALDON | 4 | 19 | 99.5 |
| Anglian Water | River Crouch | COLD NORTON - STOW ROAD PS | 7 | 15 | 100 |
| Anglian Water | Sandon Brook | EAST HANNINGFIELD OLD CHURCH RD PS | 1 | 9 | 100 |
| Anglian Water | Latchington Brook Mundon Crk B | LATCHINGDON WATER RECYCLING CENTRE | 2 | 9 | 99.4 |
| Anglian Water | River Crouch | SOUTHMINSTER - BURNHAM ROAD CSO | 8 | 6 | 100 |
| Anglian Water | Motts Farm Drain R Black | CARAVAN PARK PUMPING STATION | 3 | 5 | 100 |
| Anglian Water | Fen Creek | BICKNACRE - WOODHAM ROAD SPS | 0 | 0 | 100 |
| Anglian Water | Bradwell Creek | BRADWELL-ON-SEA STW | 0 | 0 | 100 |
| Anglian Water | Sandon Brook | LOWER GREEN GT BADDOW | 0 | 0 | 100 |
| Anglian Water | River Blackwater Via A Lagoon | MALDON PARK DRIVE CSO | 0 | 0 | 100 |
| Anglian Water | Motts Farm Drain | RAMSEY ISLAND ST LAWRENCE DRIVE PS | 0 | 0 | 100 |
| Anglian Water | River Crouch | RUNWELL-DOWNHAM ROAD CSO | 0 | 0 | 70.9 |
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
Annual figures up to and including 2025 come from official water company returns. The 2026 figure is our own estimate, derived continuously from the companies' live data feeds.
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