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Honiton and Sidmouth

Polluted by sewage 4,257 times in 2025 lasting 30,254 hours - That's 3.5 years!

Monitoring fell below 50% 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 Honiton and Sidmouth in 2026

So far this year (as of 18 May 2026, 12:00) there has been 26,119 hours of sewage overflows, from 148 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s - that's 3.02 years!

Totals for Honiton and Sidmouth in 2025

64 Sites polluted by South West Water
4,257 sewage dumps
30,254 hours duration
That's 3.5 years. On average 11.7 times a day

Change Over Time

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Constituencies near Honiton and Sidmouth

Waterways in Honiton and Sidmouth

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Pollution Summary 2025

Here are all the reported sewage overflow totals for Honiton and Sidmouth 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 73 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 %
South West Water Salcombe Regis Stream SALCOMBE REGIS WWTW CSO 235 5,446 100
South West Water River Otter HONITON WASTEWATER TREATMENT WORKS 223 2,424 100
South West Water Weaver DULFORD PSCSO/EO 132 2,411 100
South West Water Payhembury Stream PAYHEMBURY STW 119 2,058 80
South West Water Offwell Brook OFFWELL WASTEWATER TREATMENT WORKS 71 1,124 100
South West Water Corry Brook DALWOOD PUMPING STATION 65 1,042 87.9
South West Water River Axe KILMINGTON WWTW 110 995 99.8
South West Water Unknown THE HAM PS TANK & CSO - SIDMOUTH 101 981 99.67
South West Water River Axe COLYTON & COLYFORD WWTW 75 976 100
South West Water River Ken STONEYFORD PUMPING STATION 59 930 100
South West Water Aylesbeare Brook AYLESBEARE STW 55 831 100
South West Water River Axe Estuary SEATON STW 60 825 100
South West Water Unknown YARCOMBE STW 87 821 100
South West Water River Otter FLUXTON WASTEWATER TREATMENT WORKS 107 808 100
South West Water River Tale BROADHEMBURY PUMPING STATION 47 769 100
South West Water River Otter GITTISHAM PUMPING STATION 67 621 99.5
South West Water River Axe RAILWAY STATION COMBINED SEWER OF 68 587 99.8
South West Water River Axe HORSLEARS PUMPING STATION 64 576 100
South West Water River Coly COLYFORD PSCSO/EO 64 557 100
South West Water Blackwater River/Stream HAWKCHURCH STW 37 487 95.7
South West Water River Coly BRIDGE HOUSE CSO 63 487 94.7
South West Water Watercourse STOCKLAND STW 41 439 100
South West Water Unknown WILMINGTON STW 34 419 100
South West Water River Otter FENITON WASTEWATER TREATMENT WORKS 33 413 99.3
South West Water River Tale TALATON WASTEWATER TREATMENT WORKS 29 408 100
South West Water River Weaver PLYMTREE STW 38 379 100
South West Water Unknown MUSBURY & WHITFORD STW 1,464 281 100
South West Water River Wolf AWLISCOMBE PUMPING STATION 32 238 99.6
South West Water Cullompton Mill Leat DUKE STREET PUMPING STATION 19 217 99.7
South West Water Ditch VENTURA CSO 44 179 100
South West Water River Madford DUNKESWELL WWTW 26 173 98.4
South West Water River Clyst PENCEPOOL FARM PUMPING STATION 21 157 98.5
South West Water Branscombe Stream BRANSCOMBE WWTW 29 138 100
South West Water River Otter TIPTON ST JOHN PUMPING STATION 36 111 100
South West Water River Axe AXMOUTH PSCSO/EO 36 105 100
South West Water River Otter OTTERY ST MARY ATTENUATION TANK 30 99 100
South West Water River Axe CHARD ROAD COMBINED SEWER OVERFLOW 29 86 98.9
South West Water River Otter GLEBE FARM PUMPING STATION 34 79 99.3
South West Water River Clyst TALATON PUMPING STATION 23 77 100
South West Water River Otter WESTON PUMPING STATION 12 63 99.7
South West Water Dunkeswell Stream DUNKESWELL PS 19 52 100
South West Water River Otter WEST BANK PUMPING STATION 7 51 100
South West Water River Axe SHAND PARK CSO 18 49 100
South West Water River Sid Via Sws FORTESCUE COMBINED SEWER OVERFLOW 26 38 97.4
South West Water River Lim MILL LANE CSO 10 36 8.3
South West Water Lyme Bay/Seaton Bay BEER CAR PARK PUMPING STATION 27 34 100
South West Water River Axe CHAPEL STREET CSO 7 28 100
South West Water Lyme Bay And Seaton Bay MEMORIAL GARDENS PS 31 23 100
South West Water River Axe WHITFORD ROAD COMBINED SEWER O/F 5 22 100
South West Water Groundwater Via Infilt System BUTTS HILL PUMPING STATION 17 20 100
South West Water Gissage 191 HIGH STREET CSO 26 14 100
South West Water River Otter CHAPEL LANE COMBINED SEWER OVERFLOW 28 8 100
South West Water Woolbrook MANSTONE LANE CSO 19 7 99
South West Water River Otter Via Sws MILLMOOR LANE COMBINED SEWER OF 15 6 100
South West Water River Coly COLYTON CHANTRY CSO 13 6 100
South West Water Gissage 27 OAKLEA COMBINED SEWER OVEFLOW 12 5 100
South West Water River Coly FIRE STATION CSO 25 4 100
South West Water River Otter BATTS LANE COMBINED SEWER OVERFLOW 13 4 100
South West Water River Otter Via Sws MILLSTREET CSO 4 2 100
South West Water Back Brook RECREATION GROUND CSO 5 1 100
South West Water Mill Stream FORGE WAY CAR PARK CSO 2 0 100
South West Water River Sid TEMPLE STREET CSO 4 0 99.7
South West Water River Sid Via Sws VICARAGE ROAD CSO 3 0 100
South West Water Mill Leat MIDDLE MILL LANE CSO 2 0 98
South West Water Branscombe BRANSCOMBE PSCSO/EO 0 0 100
South West Water River Otter BUCKERELL PUMPING STATION 0 0 98.9
South West Water River Sid Via Sws BYES LANE COMBINED SEWER OVERFLOW 0 0 100
South West Water River Otter CASTLE COPSE PUMPING STATION 0 0 100
South West Water River Axe Estuary HARBOUR ROAD SPS (SEATON) 0 0 100
South West Water An Unnamed -River Clyst PLYMTREE STW 0 0 100
South West Water Woolbrook R/O 68 WOOLBROOK ROAD CSO 0 0 100
South West Water River Otter WATERLEAT PARK PSCSO/EO 0 0 100
South West Water River Otter WILLOWDALE PSCSO/EO 0 0 100

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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Analysing sewage pollution by the Water Industry

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