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Exeter

Polluted by sewage 508 times in 2025 lasting 965 hours

Monitoring was disabled in some locations, so could be more

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Contains OS Data © Crown copyright & database right 2021-2024
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Live data for Exeter in 2026

So far this year (as of 18 May 2026, 12:00) there has been 739 hours of sewage overflows, from 90 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s

Totals for Exeter in 2025

38 Sites polluted by South West Water
508 sewage dumps
965 hours duration
That's 1.34 months. On average 1.4 times a day

Change Over Time

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Pollution Summary 2025

Here are all the reported sewage overflow totals for Exeter 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 1 of the total 52 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. Of these 1 had zero reporting.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
South West Water Higher Leat Via Sw Sewer LOWER NORTH STREET CSO 57 178 100
South West Water Mill Race, River Exe MILL RACE COMBINED SEWER OVERFLOW 37 123 100
South West Water River Exe Via Sws DUNSFORD ROAD CSO 47 111 100
South West Water Higher Least Via Sw Sewer PENNSYLVANIA ROAD CSO 39 107 100
South West Water Higher Leat Via Sws HOWELL ROAD CSO 7 62 100
South West Water Northbrook NORTHBROOK GOLF COURSE LOWER CSO 19 51 100
South West Water River Exe Via Sws HOLLOWAY STREET CSO 28 47 99.9
South West Water Northbrook NORTHBROOK PARK GOLF CRSE UPPER CSO 24 41 100
South West Water River Exe Via Sws TEMPLE ROAD CSO 29 39 100
South West Water Alphin Brook CHURCH ROAD CSO 24 30 100
South West Water Mincinglake Stream 121A ST. KATHERINES ROAD CSO 11 30 100
South West Water River Exe BONHAY PARK CSO 8 27 100
South West Water River Exe Via Sws 23 KING EDWARD STREET CSO 6 22 98.4
South West Water River Exe Via Sws COLLETON GROVE CSO 16 16 100
South West Water River Exe Via Sws OKEHAMPTON ROAD CSO 11 12 100
South West Water Northbrook SWEETBRIER LANE CSO 16 12 100
South West Water River Exe Via Sws MAGDALEN ROAD CSO 13 10 99.5
South West Water River Exe Via Sws LARKBEARE HOUSE CSO 13 9 100
South West Water River Exe Via Sws CHURCH ROAD JCT OF CECIL ROAD CSO 9 5 100
South West Water River Exe Via Sws 19 HEAVITREE ROAD CSO 8 4 94.5
South West Water River Exe Via Sws BUDDLE LANE CSO 20 4 93.1
South West Water Taddiforde Brook R/O IMPERIAL HOTEL CSO 9 4 99.2
South West Water North Brook Via Sws FIRST AVENUE SERVICE LANE CSO 11 2 100
South West Water River Exe Via Sws CHUTE STREET CSO 4 2 100
South West Water Higher Leat Via Sw Sewer WELL STREET CSO 10 1 100
South West Water River Exe MILL ROAD PUMPING STATION 5 1 100
South West Water River Exe Via Sws EXETER BOWLING CLUB CSO 4 0 100
South West Water Higher Leat Via Sw Sewer QUAY HILL CSO 3 0 100
South West Water North Brook Via Sws NORTH LAWN COURT CSO 5 0 97
South West Water North Brook Via Sws HEAVITREE PLEASURE GROUND CSO 4 0 100
South West Water Northbrook Via Sws BURNTHOUSE LANE CSO 2 0 100
South West Water Northbrook Via Sws 21 WONFORD STREET CSO 2 0 100
South West Water River Exe Via Sws 14 CLIFTON ROAD CSO 1 0 100
South West Water Higher Leat Via Sws CENTRAL STATION YARD CSO 1 0 97.3
South West Water North Brook 15 HAMLIN LANE CSO 1 0 98.3
South West Water North Brook Via Sws LOWER AVENUE CSO 1 0 100
South West Water Higher Leat QUAY HILL COMBINED SEWER OVERFLOW 2 0 100
South West Water Higher Leat Via Sws THORNTON HILL CSO 1 0 100
South West Water North Brook Via Sws 2 DRYDEN ROAD CSO 0 0 76.7
South West Water River Exe Via Sws 28 CLIFTON ROAD CSO 0 0 100
South West Water River Exe Via Sws 34 CLIFTON ROAD CSO 0 0 100
South West Water Duryard Stream ARGYLL ROAD PUMPING STATION 0 0 100
South West Water River Exe Via Sws BULLER ROAD COMBINED SEWER OVERFLOW 0 0 98.8
South West Water River Exe Via Sws CLIFTON ROAD/JCT ALBERT ROAD CSO 0 0 100
South West Water River Exe Via Sw Sewer DIX'S FIELD CSO 0 0 99.8
South West Water Higher Leat EXE STREET CSO 0 0 97
South West Water Higher Leat Via Sw Sewer EXETER COLLEGE CSO 0 0 100
South West Water River Exe Via Sws PARIS STREET CSO 0 0 100
South West Water Higher Leat Via Sw Sewer ST SIDWELLS SCHOOL CSO 0 0 100
South West Water Mincinglake Stream Via Sws STOKE MEADOW CLOSE PUMPING STATION 0 0 100
South West Water Alphin Brook TAN LANE PUMPING STATION 0 0 100
South West Water River Exe Via Sws TOPSHAM ROAD JCT ROBERS ROAD CSO 0 0 0

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.