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Ely and East Cambridgeshire - 2025 Sewage

Polluted by sewage 13,811 hours in 2025 - That's 1.6 years , monitoring offline 15,686 hours , potential overflows 859 hours

© OpenStreetMap contributors
Contains OS Data © Crown copyright & database right 2021-2024
© Top of the Poops 2021-2024

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View Annual Sewage Data

You're looking at the totals that we have calculated for sewage in Ely and East Cambridgeshire for 2025. It is an estimate, based on very poor quality live data from the Water Companies. This may not align with the 'official' reported sewage values from the water companies, which is reported in April following then end of the year - so 2025 numbers are reported in April 2026.

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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Daily Data

Jan - 388 hours
Feb - 192 hours
Mar - 28 hours , 584 offline
Apr - 36 hours , 720 offline
May - 5 hours , 744 offline
Jun - 42 hours , 720 offline
Jul - 114 hours , 1,043 offline
Aug - 11 hours , 2,232 offline
Sept - 35 hours , 2,160 offline
Oct - 84 hours , 2,232 offline
Nov - 10,038 hours , 406 potential
Dec - 2,830 hours , 428 potential
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
Anglian Water WILBURTON STW Grunty Fen Catchwater 44 719h 23m -
Anglian Water STRETHAM-OFF NEWMARKET RD TPS Stretham Catchwater 40 656h 41m -
Anglian Water WITCHFORD STW Fen Drain River Great Ouse 32 572h 58m -
Anglian Water LITTLEPORT STW Mare Fen Drain 29 565h 3m -
Anglian Water MEPAL STW 100 Foot River 32 559h 20m -
Anglian Water Ely Water Recycling Centre River Great Ouse 34 554h 47m -
Anglian Water SUTTON-STATION RD OV Unnamed South Fen Drain 74 543h 41m -
Anglian Water HADDENHAM WRC Aldreth Canal 37 539h 42m -
Anglian Water SUTTON-STH OF THE ROW OV Counter Drain 29 539h 2m -
Anglian Water LITTLE DOWNHAM STW Pipers Hill Drain River Great 39 534h 38m -
Anglian Water WITCHFORD-THE BROADWAY SP Grunty Fen Drain 31 530h 49m -
Anglian Water HADDENHAM-NEW TOWN RD SP Hundred Foot 26 528h 11m -
Anglian Water CHEVELEY-BROOMSTICK CNR OV Trb Newmarket No2 Public Drain 32 525h 46m -
Anglian Water STUNTNEY-LOWER STREET SP Middle Fen Drain 24 524h 14m -
Anglian Water ELY-WEST FEN ROAD SP A Littleport 27 520h 41m -
Anglian Water LT THETFORD-MAIN ST TPS Thetford Catchwater 24 514h 54m 2,779 h
Anglian Water SUTTON-LAWN LANE SP Hundred Foot Drain 24 512h 35m -
Anglian Water STRETHAM-OFF BERRY GREEN SP River Great Ouse 24 512h 25m -
Anglian Water COVENEY STW Ten Mile River 27 511h -
Anglian Water Ely New Water Recycling Centre Ouse River 23 510h 25m -
Anglian Water SOHAM-CHERRY TREE SP Soham Lode 26 509h 45m -
Anglian Water PYMORE-MAIN STREET SP One Hundred Foot Dra 22 507h 49m -
Anglian Water WITCHAM WRC Witcham Catchwater River Ouse 18 251h 5m 181 h
Anglian Water WITCHAM WRC Witcham Catchwater River Ouse 21 190h 58m 515 h
Anglian Water MEPAL STW 100 Foot River 13 154h 31m -
Anglian Water Ely Water Recycling Centre River Great Ouse 12 153h 4m -
Anglian Water SUTTON-STH OF THE ROW OV Counter Drain 10 132h 13m -
Anglian Water LITTLE DOWNHAM STW Pipers Hill Drain River Great 11 81h 55m -
Anglian Water WITCHFORD STW Fen Drain River Great Ouse 14 76h 8m -
Anglian Water LITTLEPORT STW Mare Fen Drain 7 71h 19m -
Anglian Water STRETHAM-OFF NEWMARKET RD TPS Stretham Catchwater 7 69h 58m -
Anglian Water DULLINGHAM STW Newmarket No.1 Public Drain 10 58h 54m -
Anglian Water Ely New Water Recycling Centre Ouse River 5 54h 16m -
Anglian Water WILBURTON STW Grunty Fen Catchwater 7 51h 25m -
Anglian Water HADDENHAM WRC Aldreth Canal 12 42h 33m -
Anglian Water Cambridge Water Recycling Centre River Cam 3 37h 25m -
Anglian Water SUTTON-STATION RD OV Unnamed South Fen Drain 14 31h 40m 343 h
Anglian Water WITCHFORD-THE BROADWAY SP Grunty Fen Drain 4 26h 33m 11 h
Anglian Water ELY-WEST FEN ROAD SP A Littleport 2 26h 5m -
Anglian Water Cambridge Water Recycling Centre River Cam 14 24h 56m -
Anglian Water HADDENHAM-NEW TOWN RD SP Hundred Foot 5 24h 15m -
Anglian Water WATERBEACH STW Bannold Drove Ditch 2 23h 44m 1,132 h
Anglian Water LT THETFORD-MAIN ST TPS Thetford Catchwater 2 23h 33m -
Anglian Water STUNTNEY-LOWER STREET SP Middle Fen Drain 2 22h 20m -
Anglian Water CHEVELEY-BROOMSTICK CNR OV Trb Newmarket No2 Public Drain 5 20h 12m -
Anglian Water COVENEY STW Ten Mile River 7 17h 28m 1 h
Anglian Water DULLINGHAM STW Newmarket No.1 Public Drain 4 16h 52m -
Anglian Water PYMORE-MAIN STREET SP One Hundred Foot Dra 2 14h 15m -
Anglian Water SUTTON-LAWN LANE SP Hundred Foot Drain 2 14h 15m -
Anglian Water SOHAM STW Soham Lode 2 14h 9m -
Anglian Water LITTLEPORT-HOOF CLOSE SSO Unnamed Ely Ou 18 13h 22m -
Anglian Water STRETHAM-OFF BERRY GREEN SP River Great Ouse 2 10h 50m -
Anglian Water ELY-WALSINGHAM WAY OV Relief Channel 10 9h -
Anglian Water WATERBEACH STW Bannold Drove Ditch 2 8h 45m -
Anglian Water LITTLEPORT-HOOF CLOSE SSO Unnamed Ely Ou 7 6h 24m -
Anglian Water WICKEN-DRURY LANE SP Soham Lode 1 5h 55m -
Anglian Water ELY-WALSINGHAM WAY OV Relief Channel 4 5h 14m -
Anglian Water CHIPPENHAM STW River Kennett 7 5h 2m -
Anglian Water COTTENHAM BROAD LANE SP 1 Catchwater Drain Cottenham Lod 1 4h 40m -
Anglian Water Ely Lisle Lane CSO River Great Ouse 6 4h 5m -
Anglian Water COTTENHAM-HISTON RD SP Beach Ditch 1 3h 39m -
Anglian Water HADDENHAM-HILL ROW SP Old West River 2 2h 42m -
Anglian Water PYMORE-STRAIGHT FURLONG SP Littleport 1 2h 21m -
Anglian Water Ely Lisle Lane CSO River Great Ouse 1 1h 49m -
Anglian Water BOTTISHAM STW Swaffham Bulbeck Lode 3 1h 30m -
Anglian Water Ely Willow Walk Terminal Pumping Station River Great Ouse 1 1h 29m -
Anglian Water LT DOWNHAM-CALIFORNIA SSO Hundred Foot River 3 1h 28m -
Anglian Water LITTLE DOWNHAM-EAGLE LANE SP Littleport 2 0h 59m -
Anglian Water BOTTISHAM-TUNBRIDGE LANE TPS Swaffham Bulbeck Lode 1 0h 58m -
Anglian Water SOHAM-CHERRY TREE SP Soham Lode 1 0h 12m -
Anglian Water LT DOWNHAM-CALIFORNIA SSO Hundred Foot River 1 0h 12m -
Anglian Water LITTLEPORT-FRIARS WY WIS RD Mare Fen Drain 1 0h 11m -
Anglian Water WITCHAM WRC Witcham Catchwater River Ouse 0 0h 6,549 h
Anglian Water COTTENHAM-HISTON RD SP Beach Ditch 0 0h -
Anglian Water Ely Willow Walk Terminal Pumping Station River Great Ouse 0 0h 1,162 h
Anglian Water Chapel Terminal Pumping Station Fen Drain River Great Ouse 0 0h -
Anglian Water LITTLE DOWNHAM-EAGLE LANE SP Littleport 0 0h -
Anglian Water BURWELL STW Catchwater Drain 0 0h -
Anglian Water FORDHAM-CARTER STREET OV River Snall 0 0h -
Anglian Water Soham - Mill Corner TPS Soham Lode 0 0h -
Anglian Water FORDHAM-CARTER STREET OV River Snall 0 0h -
Anglian Water Witcham Road Terminal Pumping Station Hundred Ft Drain 0 0h -
Anglian Water WITCHAM WRC Witcham Catchwater River Ouse 0 0h -
Anglian Water HADDENHAM-STATION ROAD SP Grunty Fen Drain 0 0h 3,039 h
Anglian Water HADDENHAM-HILL ROW SP Old West River 0 0h -
Anglian Water BOTTISHAM STW Swaffham Bulbeck Lode 0 0h -
Anglian Water STRETHAM STW Stretham Catchwater River Grea 0 0h -
Anglian Water HADDENHAM-STATION ROAD SP Grunty Fen Drain 0 0h -
Anglian Water COVENEY-SCHOOL LANE SP Un Sedge Fen Dr 0 0h -
Anglian Water HADDENHAM WRC Aldreth Canal 0 0h -
Anglian Water PYMORE-STRAIGHT FURLONG SP Littleport 0 0h 0 h
Anglian Water Chapel Terminal Pumping Station Fen Drain River Great Ouse 0 0h -
Anglian Water WITCHAM-THE SLADE MH90 OVSSO Counter Drain 0 0h -
Anglian Water COVENEY-SCHOOL LANE SP Un Sedge Fen Dr 0 0h -
Anglian Water LITTLE DOWNHAM PS Pypers Hill Drain 0 0h -
Anglian Water BOTTISHAM-TUNBRIDGE LANE TPS Swaffham Bulbeck Lode 0 0h -
Anglian Water CHIPPENHAM STW River Kennett 0 0h -
Anglian Water BURWELL STW Catchwater Drain 0 0h -
Anglian Water WITCHAM-THE SLADE MH90 OVSSO Counter Drain 0 0h 826 h
Anglian Water HADDENHAM WRC Aldreth Canal 0 0h -
Anglian Water Witcham Road Terminal Pumping Station Hundred Ft Drain 0 0h -
Anglian Water WENTWORTH-COLLEGE FARM SP Folly River 0 0h -
Anglian Water LITTLEPORT-FRIARS WY WIS RD Mare Fen Drain 0 0h -

Data Sources & Accuracy

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.