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West Dorset

Polluted by sewage 2,497 times in 2025 lasting 27,605 hours - That's 3.2 years!

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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 West Dorset in 2026

So far this year (as of 18 May 2026, 12:00) there has been 30,188 hours of sewage overflows, from 179 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s - that's 3.49 years!

Totals for West Dorset in 2025

74 Sites polluted by South West Water Wessex Water
2,497 sewage dumps
27,605 hours duration
That's 3.2 years. On average 6.8 times a day

Change Over Time

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Waterways in West Dorset

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Pollution Summary 2025

Here are all the reported sewage overflow totals for West Dorset 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 all the declared CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s appeared to have monitoring enabled for more than 50% of the year

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Wessex Water Sydling Water SYDLING ST.NICHOLAS WRC 97 2,149 99.9
Wessex Water South Winterbourne MARTINSTOWN PS 129 2,029 100
Wessex Water River Bride CHICKSBRIDGE PS 112 1,957 99.9
Wessex Water River Piddle PUMPING STN ADJACENT THE PIDDLE INN 78 1,753 100
Wessex Water River Piddle PUMPING STATION ADJACENT RIVENDELL 76 1,692 100
Wessex Water River Lydden BUCKLAND NEWTON WRC 108 1,684 99.6
Wessex Water River Yeo HALSTOCK WATER RECYCLING CENTRE 82 1,423 99.8
Wessex Water Caundle Brook BISHOPS CAUNDLE STW 46 862 99.8
Wessex Water Wriggle River BEER HACKETT PUMPING STATION 50 790 90.9
Wessex Water River Yeo POYNTINGTON WATER RECYLCING CENTRE 53 726 100
Wessex Water River Frome MAIDEN NEWTON WATER RECYCLING CENTR 41 669 99.8
Wessex Water River Frome DORCHESTER (LOUDS MILL) STW 44 644 99.85
Wessex Water River Brit SOUTHGATE PUMPING STATION 62 637 100
Wessex Water River Bride PUNCKNOWLE WRC 43 623 98.8
Wessex Water Abbotsbury Brook ABBOTSBURY WWTW 40 616 100
Wessex Water River Brit NETHERBURY PUMPING STATION 52 588 99.1
Wessex Water River Yeo SHERBORNE WWTW 65 553 97.95
Wessex Water River Cerne GODMANSTONE STW 24 545 94.3
Wessex Water River Frome NORTH STREET PS 37 539 100
Wessex Water River Hooke TOLLER PORCORUM WRC 35 520 100
Wessex Water Caundle Brook HOLWELL STW 42 518 100
Wessex Water Tadnoll Brook BROADMAYNE WWTW 32 459 100
South West Water Drimpton Stream BROADWINDSOR WWTW 95 447 100
Wessex Water River Winniford CHIDEOCK STW 31 413 100
Wessex Water River Frome EVERSHOT WASTEWATER TREATMENT WORKS 45 405 100
Wessex Water Lyme Bay BRIDPORT SEWAGE TREATMENT WORKS 52 400 99.9
Wessex Water River Yeo SANDFORD ORCAS WRC 31 352 100
Wessex Water River Parrett SOUTH PERROTT WWTW 37 341 100
Wessex Water Sydling Water SYDLING ST NICHOLAS PUMPING STATION 16 335 100
Wessex Water River Brit SOUTH STREET CSO 58 314 94.1
South West Water River Axe MOSTERTON PUMPING STATION 72 311 100
South West Water Temple Brook DRIMPTON PUMPING STATION 27 270 100
Wessex Water Dorchester Mill Stream 16 HIGH STREET CSO 29 234 99.9
South West Water River Lim HORN BRIDGE PSEO/CSO 32 222 100
Wessex Water Sea Lagoon Chessel Beach WEST BEXINGTON PUMPING STATION 26 160 96.4
Wessex Water Wriggle River FRAMPTON FARM PUMPING STATION 31 153 100
Wessex Water River Frome EVERSHOT COMBINED SEWER OVERFLOW 76 144 100
Wessex Water Unknown CSO AT SCOUT HUT 9 127 99.5
Wessex Water River Asker SOUTH BRIDGE COMB. STORM OVERFLOW 26 96 100
Wessex Water Bridport Harbour WEST BAY SLUICES 10 94 100
Wessex Water River Wriggle LEIGH BRIDGE FARM PUMPING STATION 16 94 99.9
Wessex Water Mangerton River WEST MILTON WATER RECYCLING CENTRE 23 89 100
Wessex Water Lyme Bay CHARMOUTH SEWAGE DISPOSAL WORKS 72 80 100
Wessex Water River Asker LEE LANE PUMPING STATION 15 66 100
Wessex Water River Brit BRIDPORT WEST STREET CSO 40 65 89.7
Wessex Water Halstock Stream CORSCOMBE WASTEWATER TREATMENT WORK 15 63 100
Wessex Water Mill Stream Via Sws 35 KINGS ROAD 29 53 100
Wessex Water Tadnoll Brook KNIGHTON LANE CSO 31 28 99.9
Wessex Water West Fleet LANGTON HERRING WRC 38 27 100
Wessex Water Lyme Bay BRIDPORT WATER RECYCLING CENTRE PS 8 26 99.9
Wessex Water Unknown CSO AT PRINCES BRIDGE 3 24 100
Wessex Water Winniford SEATOWN PUMPING STATION 6 22 100
South West Water River Lim GUN CLIFF PSEO/CSO 4 18 100
Wessex Water River Yeo MILL LANE PUMPING STATION 3 15 100
Wessex Water River Bride SHIPTON GORGE PUMPING STATION 4 15 99.8
Wessex Water River Yeo Via Sws LUDBORNE ROAD CSO 10 12 100
Wessex Water Mill Stream CHURCH STREET PUMPING STATION 10 12 100
Wessex Water River Asker Via Sws FISHWEIR FIELDS PS 3 11 100
Wessex Water River Brit HAMS PATH COMBINED SEWER OVERFLOW 12 11 100
South West Water River Synderford THORNCOMBE WWTW 8 8 100
Wessex Water River Bride BURTON BRADSTOCK 4 7 100
Wessex Water Corton Denham Stream SANDFORD ORCAS PUMPING STATION 2 7 100
Wessex Water River Brit WEST BRIDGE CSO 11 6 99.3
Wessex Water River Yeo Via Sws 63 CHEAP STREET CSO 23 5 100
Wessex Water River Yeo ABBEY ROAD COMBINED SEWER OVERFLOW 11 3 100
Wessex Water Caundle Brook GLANVILLES WOOTTON WATER RECYCLING 3 3 99.8
Wessex Water River Yeo Via Sws CHEAP STREET NORTH CSO 12 1 99
Wessex Water River Yeo Via Sws NEWLAND COMBINED SEWER OVERFLOW 9 1 95.5
Wessex Water River Frome Via Sws CSO AT TOP OF SOUTH WALKS 2 1 97.7
South West Water River Lim JERICHO CSO 8 1 100
Wessex Water Mill Stream Via Sws VICTORIA ROAD CSO 5 0 100
South West Water River Lim GOSLINGS BRIDGE CSO 3 0 95.8
Wessex Water Unknown CSO AT 97 HIGH STREET 1 0 100
Wessex Water River Asker EAST BRIDGE COMBINED SEWER OVERFLOW 2 0 100
Wessex Water River Bride BURTON SOUTHOVER PS 0 0 100
Wessex Water South Winterbourne DORCHESTER ROAD PS 0 0 99.9
Wessex Water River Yeo Via Sws LONG STREET CSO 0 0 100
Wessex Water River Char THE STREET CSO, CHARMOUTH 0 0 94.3
Wessex Water River Yeo Via Sws THORN BANK CSO 0 0 99.9
Wessex Water River Brit WEST BAY ROAD CSO 0 0 100
Wessex Water River Simene WEST ROAD FOUNDRY PUMPING STATION 0 0 100
Wessex Water River Yeo Via Sws WESTBURY COMBINED SEWER OVERFLOW 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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