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Polluted by sewage 1,842 hours in 2025
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We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for Southend East and Rochford, 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 Now| Company | Site Name | Receiving Waterway | Overflow Days | Total Duration (hours) | Total Duration (days) |
|---|---|---|---|---|---|
| Anglian Water | SOUTHEND STW | Thames Estuary | 81 | 734 h 32m | 30.58 |
| Anglian Water | SOUTHEND-SOUTHCHURCH ROAD CSO | Thames Estuary | 30 | 696 h 43m | 29 |
| Anglian Water | SOUTHEND-WOODGRANGE DRIVE CSO 1 | Thames Estuary | 19 | 257 h 18m | 10.71 |
| Anglian Water | SOUTHEND STW | Thames Estuary | 11 | 47 h 4m | 1.96 |
| Anglian Water | Southend - Manilla Road | Thames Estuary | 8 | 30 h 18m | 1.25 |
| Anglian Water | SOUTHEND-RIV DR/CHINCH'LA CSO | Thames Estuary | 16 | 12 h 59m | 0.5 |
| Anglian Water | SOUTHEND-SOUTHCHURCH ROAD CSO | Thames Estuary | 12 | 10 h 5m | 0.42 |
| Anglian Water | SOUTHEND-CHURCH ROAD CSO | Thames Estuary | 11 | 6 h 45m | 0.25 |
| Anglian Water | PAGLESHAM-CHURCH END SP | Paglesham Creek | 1 | 5 h 19m | 0.21 |
| Anglian Water | PAGLESHAM-WEST TPS | Stannets Creek Brook | 1 | 5 h 14m | 0.21 |
| Anglian Water | Rochford Depot Pumping Station | River Roach | 1 | 5 h | 0.21 |
| Anglian Water | SOUTHEND-WOODGRANGE DRIVE CSO 1 | Thames Estuary | 4 | 3 h 59m | 0.12 |
| Anglian Water | SOUTHEND-ROY ART/ASH AV CSO | Thames Estuary | 3 | 3 h 44m | 0.12 |
| Anglian Water | SOUTHEND-PIER HL/HIGH ST CSO | Thames Estuary | 5 | 3 h 36m | 0.12 |
| Anglian Water | Paglesham East TPS | River Roach | 1 | 3 h 24m | 0.12 |
| Anglian Water | SOUTHEND-SHOEBURY NESS RD SP | Thames Estuary | 3 | 3 h 13m | 0.12 |
| Anglian Water | GT STAMBRIDGE-TPS | Stambridge Brook | 2 | 2 h 50m | 0.08 |
| Anglian Water | SOUTHEND-VICTORIA ROAD CSO OV | Thames Estuary | 3 | 2 h 30m | 0.08 |
| Anglian Water | PAGLESHAM-CHURCH END SP | Paglesham Creek | 1 | 2 h 20m | 0.08 |
| Anglian Water | SOUTHEND-HAMLET CT RD CSO | Thames Estuary | 4 | 2 h | 0.08 |
| Anglian Water | SOUTHEND-RETREAT ROAD CSO | Thames Estuary | 3 | 1 h | 0.04 |
| Anglian Water | SOUTHEND-HARTINGTON RD BF | Thames Estuary | 1 | 0 h 34m | 0 |
| Anglian Water | Southend Burdett Road Combined Sewer Overflow | Thames Estuary | 2 | 0 h 34m | 0 |
| Anglian Water | SOUTHEND-HAMS/ROY ART W CSO | Thames Estuary | 1 | 0 h 24m | 0 |
| Anglian Water | Great Wakering Seaview Estate Pumping Station | River Thames | 1 | 0 h 15m | 0 |
| Anglian Water | SOUTHEND-WOODGRANGE DRIVE CSO 1 | Thames Estuary | 1 | 0 h 15m | 0 |
| Anglian Water | Unknown | Unknown | 1 | 0 h 15m | 0 |
| Anglian Water | WAKERING COMMON-HAVENGORE TPS | Havengore Creek, R Roach | 0 | 0 h | 0 |
| Anglian Water | SOUTHEND-PIER HL/HIGH ST CSO | Thames Estuary | 0 | 0 h | 0 |
| Anglian Water | SOUTHEND-SHOEBURY NESS RD SP | Thames Estuary | 0 | 0 h | 0 |
| Anglian Water | SOUTHEND-SHOEBURY RAMPARTST SP | Thames Estuary | 0 | 0 h | 0 |
| Anglian Water | SOUTHEND-HAMLET CT RD CSO | Thames Estuary | 0 | 0 h | 0 |
| Anglian Water | SOUTHEND-WOODGRANGE DRIVE CSO 1 | Thames Estuary | 0 | 0 h | 0 |
| Anglian Water | Paglesham East TPS | River Roach | 0 | 0 h | 0 |
| Anglian Water | PAGLESHAM-WEST TPS | Stannets Creek Brook | 0 | 0 h | 0 |
| Anglian Water | SOUTHEND CANEWDON ROAD SP | Thames Estuary | 0 | 0 h | 0 |
| Anglian Water | ROCHFORD-SCOTTS HALL RD SP | River Roach | 0 | 0 h | 0 |
| Anglian Water | ROCHFORD-SCOTTS HALL RD SP | River Roach | 0 | 0 h | 0 |
| Anglian Water | SOUTHEND-CHURCH ROAD CSO | Thames Estuary | 0 | 0 h | 0 |
| Anglian Water | Southend Burdett Road Combined Sewer Overflow | Thames Estuary | 0 | 0 h | 0 |
| Anglian Water | SOUTHEND-ROY ART/ASH AV CSO | Thames Estuary | 0 | 0 h | 0 |
| Anglian Water | SOUTHEND-QUEENSWAY CSO | Thames Estuary | 0 | 0 h | 0 |
| Anglian Water | Great Wakering Seaview Estate Pumping Station | River Thames | 0 | 0 h | 0 |
| Anglian Water | SOUTHEND-VICTORIA ROAD CSO OV | Thames Estuary | 0 | 0 h | 0 |
| Anglian Water | Southend - Manilla Road | Thames Estuary | 0 | 0 h | 0 |
| Anglian Water | SOUTHEND-RETREAT ROAD CSO | Thames Estuary | 0 | 0 h | 0 |
| Anglian Water | SOUTHEND-HARTINGTON RD BF | Thames Estuary | 0 | 0 h | 0 |
| Anglian Water | SOUTHEND-HAMS/ROY ART W CSO | Thames Estuary | 0 | 0 h | 0 |
| Anglian Water | Rochford Depot Pumping Station | River Roach | 0 | 0 h | 0 |
| Anglian Water | SOUTHEND ARCHER CL CSO | Thames Estuary | 0 | 0 h | 0 |
| Anglian Water | SOUTHEND RIVIERA DRIVE BF | Thames Estuary | 0 | 0 h | 0 |
| Anglian Water | GT STAMBRIDGE-TPS | Stambridge Brook | 0 | 0 h | 0 |
| Anglian Water | SOUTHEND-SHOEBURY RAMPARTST SP | Thames Estuary | 0 | 0 h | 0 |
| Anglian Water | SOUTHEND-RIV DR/CHINCH'LA CSO | Thames Estuary | 0 | 0 h | 0 |
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