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Polluted by sewage 3,965 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 Boston and Skegness, 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 | Boston New East Side Terminal Pumping Station | Wash Estuary | 44 | 653 h 14m | 27.21 |
| Anglian Water | SIBSEY STW | Mallows Drain Hobhole Drain | 32 | 609 h 47m | 25.38 |
| Anglian Water | SKEGNESS-RICHMOND DR TPS | Croft Bank Drain | 34 | 597 h 42m | 24.88 |
| Anglian Water | MUMBY SP | Unknown | 28 | 553 h 28m | 23.04 |
| Anglian Water | STICKNEY STW | East Fen Catchwater Drain | 26 | 530 h 7m | 22.08 |
| Anglian Water | MUMBY SP | Unknown | 18 | 347 h 13m | 14.46 |
| Anglian Water | FRAMPTON STW | Frampton Town Drain | 7 | 97 h 59m | 4.04 |
| Anglian Water | SKEGNESS-RICHMOND DR TPS | Croft Bank Drain | 8 | 85 h 1m | 3.54 |
| Anglian Water | FRAMPTON STW | Frampton Town Drain | 5 | 77 h | 3.21 |
| Anglian Water | Boston New East Side Terminal Pumping Station | Wash Estuary | 12 | 65 h 47m | 2.71 |
| Anglian Water | SIBSEY STW | Mallows Drain Hobhole Drain | 8 | 61 h 47m | 2.54 |
| Anglian Water | Boston London Road Pumping Station | Haven | 4 | 48 h 59m | 2 |
| Anglian Water | Boston London Road Pumping Station | South Forty Foot Drain | 6 | 42 h 26m | 1.75 |
| Anglian Water | STICKNEY STW | East Fen Catchwater Drain | 5 | 30 h 8m | 1.25 |
| Anglian Water | OLD LEAKE-SKIPMARSH LANE STW | Leak Gride Drain | 6 | 22 h 28m | 0.92 |
| Anglian Water | FISHTOFT STW | Hobhole Drain | 6 | 21 h 18m | 0.88 |
| Anglian Water | FISHTOFT STW | Hobhole Drain | 2 | 21 h 15m | 0.88 |
| Anglian Water | BURGH LE MARSH-STOREYS LAN TPS | Catchwater Drain | 2 | 16 h 45m | 0.67 |
| Anglian Water | Skendleby STW | River Lymn | 8 | 15 h 46m | 0.62 |
| Anglian Water | Boston Queens Road Combined Sewer Overflow | Maud Foster Drain | 6 | 14 h 37m | 0.58 |
| Anglian Water | Ingoldmells Haven Pumping Station (Ingoldmells WRC) | North Sea | 4 | 14 h 25m | 0.58 |
| Anglian Water | BURGH LE MARSH-STOREYS LAN TPS | Catchwater Drain | 1 | 14 h 15m | 0.58 |
| Anglian Water | WAINFLEET STW | River Steeping | 2 | 11 h 30m | 0.46 |
| Anglian Water | INGOLDMELLS STW | North Sea | 1 | 7 h | 0.29 |
| Anglian Water | Boston Sleaford Road Pumping Station | North Forty Foot Drain | 4 | 1 h 44m | 0.04 |
| Anglian Water | Boston Norfolk Place Combined Sewer Overflow | Haven | 3 | 1 h 6m | 0.04 |
| Anglian Water | Boston Sleaford Road Pumping Station | North Forty Foot Drain | 2 | 0 h 59m | 0 |
| Anglian Water | Boston Church Road Pumping Station | Maud Foster Drain | 2 | 0 h 44m | 0 |
| Anglian Water | Norfolk Street Combined Sewer Overflow | Maud Foster Drain | 1 | 0 h 42m | 0 |
| Anglian Water | Boston Queens Road Combined Sewer Overflow | Maud Foster Drain | 1 | 0 h 15m | 0 |
| Anglian Water | Boston Fenside Road Pumping Station | North Forty Foot Drain | 1 | 0 h 15m | 0 |
| Anglian Water | Boston Norfolk Place Combined Sewer Overflow | Haven | 0 | 0 h | 0 |
| Anglian Water | Boston Church Road Pumping Station | Maud Foster Drain | 0 | 0 h | 0 |
| Anglian Water | FISHTOFT-ROCHFORD TOWER LANE | Hobhole Drain | 0 | 0 h | 0 |
| Anglian Water | Norfolk Street Combined Sewer Overflow | Maud Foster Drain | 0 | 0 h | 0 |
| Anglian Water | OLD LEAKE-SKIPMARSH LANE STW | Leak Gride Drain | 0 | 0 h | 0 |
| Anglian Water | Ingoldmells Haven Pumping Station (Ingoldmells WRC) | North Sea | 0 | 0 h | 0 |
| Anglian Water | INGOLDMELLS-SOUTH GATE CAMP | To Ingoldmells Main Drain | 0 | 0 h | 0 |
| Anglian Water | WAINFLEET-BOSTON RD SP | Unnamed Drain Steeping Haven | 0 | 0 h | 0 |
| Anglian Water | WAINFLEET-BOSTON RD SP | Unnamed Drain Steeping Haven | 0 | 0 h | 0 |
| Anglian Water | INGOLDMELLS STW | North Sea | 0 | 0 h | 0 |
| Anglian Water | Skendleby STW | River Lymn | 0 | 0 h | 0 |
| Anglian Water | Boston Fenside Road Pumping Station | North Forty Foot Drain | 0 | 0 h | 0 |
| Anglian Water | Boston London Road Pumping Station | South Forty Foot Drain | 0 | 0 h | 0 |
| Anglian Water | Boston London Road Pumping Station | Haven | 0 | 0 h | 0 |
| Anglian Water | WAINFLEET STW | River Steeping | 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