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Ely and East Cambridgeshire

Polluted by sewage 385 times in 2025 lasting 2,165 hours

Monitoring fell below 50% in some locations so could be more

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

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Live data for Ely and East Cambridgeshire in 2026

So far this year (as of 18 May 2026, 12:00) there has been 1,281 hours of sewage overflows, from 103 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s

Totals for Ely and East Cambridgeshire in 2025

38 Sites polluted by Anglian Water
385 sewage dumps
2,165 hours duration
That's 3.01 months. On average 1.1 times a day

Change Over Time

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Constituencies near Ely and East Cambridgeshire

Waterways in Ely and East Cambridgeshire

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Pollution Summary 2025

Here are all the reported sewage overflow totals for Ely and East Cambridgeshire 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 2 of the total 49 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway locations had reporting enabled for less than half the year.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Anglian Water Witcham Catchwater River Ouse WITCHAM STW 42 614 99.25
Anglian Water River Great Ouse ELY WATER RECYCLING CENTRE (OLD) 22 218 100
Anglian Water Fen Drain River Great Ouse WITCHFORD STW 26 155 100
Anglian Water Stretham Catchwater NEWMARKET RD TERMINAL PS 17 141 100
Anglian Water Mare Fen Drain LITTLEPORT WRC 15 134 100
Anglian Water Grunty Fen Drain STATION RD PS HADDENHAM 23 132 40.7
Anglian Water Pipers Hill Drain River Great LITTLE DOWNHAM WATER RECYCLING CNTR 29 117 99.8
Anglian Water Grunty Fen Catchwater WILBURTON WRC TPS 5 96 100
Anglian Water Hundred Foot HADDENHAM - NEW TOWN ROAD PS 12 88 100
Anglian Water Unnamed South Fen Drain STATION RD 43 64 99.6
Anglian Water Ouse River ELY (NEW) WATER RECYCLING CENTRE 6 60 100
Anglian Water Trb Newmarket No2 Public Drain BROOMSTICK CORNER CSO 18 60 100
Anglian Water Newmarket No.1 Public Drain DULLINGHAM WATER RECYCLING CENTRE 10 54 99.7
Anglian Water Thetford Catchwater MAIN ST PS LITTLE THETFORD 4 34 79.4
Anglian Water Ten Mile River COVENEY CSO 15 28 98
Anglian Water Counter Drain SUTTON - STH OF THE ROW CSO 5 25 98.2
Anglian Water Unnamed Ely Ou LITTLEPORT-HOOF CLOSE CSO 25 20 100
Anglian Water River Great Ouse BERRY GREEN PS 3 20 100
Anglian Water Relief Channel WALSINGHAM WAY CSO 11 15 99.5
Anglian Water Soham Lode SOHAM WATER RECYCLING CENTRE 2 14 100
Anglian Water Grunty Fen Drain BROADWAY TERMINAL PS 7 13 100
Anglian Water River Kennett CHIPPENHAM WATER RECYCLING CTR PS 7 8 100
Anglian Water Soham Lode MILL CORNER TPS 5 7 90.8
Anglian Water Middle Fen Drain STUNTNEY LOWER STREET PS 1 6 100
Anglian Water River Great Ouse ELY LISLE LANE 13 5 100
Anglian Water Catchwater Drain Cottenham Lod BROAD LANE PS 1 4 100
Anglian Water Unknown WITCHAM 2 4 45.5
Anglian Water Beach Ditch HISTON ROAD SPS 2 4 100
Anglian Water Unknown PS HILL ROW 2 3 100
Anglian Water Swaffham Bulbeck Lode TUNBRIDGE LA PS 1 2 100
Anglian Water Swaffham Bulbeck Lode BOTTISHAM WATER RECYCLING CENTRE 4 2 99.7
Anglian Water River Great Ouse ELY WILLOW WALK TPS 1 1 100
Anglian Water Folly River WENTWORTH - COLLEGE FARM PS 1 1 73.6
Anglian Water Hundred Foot Drain LAWN LANE TERMINAL PS 1 1 100
Anglian Water Soham Lode SOHAM CHERRY TREE PUMPING STATION 1 0 98.5
Anglian Water Soham Lode DRURY LA PS 1 0 100
Anglian Water Aldreth Canal HADDENHAM SEWAGE TREATMENT WORKS 1 0 100
Anglian Water Hundred Foot River LITTLE DOWNHAM CALIFORNIA HSE CSO 1 0 100
Anglian Water Catchwater Drain BURWELL STW STORM TANKS & EO 0 0 99.8
Anglian Water Catchwater Drn - Burwell Lode BURWELL WATER RECYCLING CENTRE 0 0 100
Anglian Water Fen Drain River Great Ouse CHAPEL TPS 0 0 99.9
Anglian Water Un Sedge Fen Dr COVENEY - SCHOOL LANE PS 0 0 100
Anglian Water Littleport EAGLES LANE PS 0 0 100
Anglian Water Pypers Hill Drain LITTLE DOWNHAM WEST FEN PS 0 0 100
Anglian Water One Hundred Foot Dra MAIN ST PS 0 0 100
Anglian Water River Snall SO FORDHAM 0 0 68.8
Anglian Water Littleport STRAIGHT FURLONG PS 0 0 100
Anglian Water Stretham Catchwater River Grea STRETHAM STW 0 0 91
Anglian Water Hundred Ft Drain WARDY HILL - WITCHAM RD TPS 0 0 97.9

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.

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