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West Dorset - 2025 Sewage

Polluted by sewage 28,605 hours in 2025 - That's 3.31 years , monitoring offline 1,466 hours , potential overflows 298 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 West Dorset 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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Constituencies near West Dorset

Daily Data

Jan - 5,445 hours , 10 offline
Feb - 5,540 hours , 46 offline
Mar - 2,013 hours , 6 potential
Apr - 125 hours , 3 potential
May - 22 hours , 501 offline
Jun - 63 hours
Jul - 4 hours
Aug - 93 hours , 2 offline
Sept - 197 hours , 55 offline
Oct - 273 hours , 85 potential
Nov - 3,048 hours , 116 potential
Dec - 11,633 hours , 87 potential
Daily data is experimental and data is not guaranteed to be accurate. Please inform us of any issue, we will fix.
Please note: We don't have rainfall data for Wales. If you know where to source it please let us know!
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
Wessex Water MARTINSTOWN B3159 South Winterbourne 92 1,499 h 49m 8 h
Wessex Water HALSTOCK WATERY LANE STORM TANK River Yeo 75 1,456 h 23m -
Wessex Water PIDDLETRENTHIDE R/O TRENT HOUSE (CSO6) River Piddle 56 1,287 h 19m -
Wessex Water PIDDLETRENTHIDE ACROSS RIVER FROM RIVENDELL (CSO4) River Piddle 54 1,172 h 10m -
Wessex Water SYDLING ST NICHOLAS NEAR HUISH FARM STORM TANK Sydling Water 52 1,145 h 24m -
Wessex Water LITTON CHENEY CHICKSBRIDGE River Bride 49 1,049 h 13m -
Wessex Water BUCKLAND NEWTON DUNTISH INLET River Lydden 69 973 h 22m 2 h
Wessex Water BUCKLAND NEWTON DUNTISH INLET River Lydden 47 951 h 9m -
Wessex Water LITTON CHENEY CHICKSBRIDGE River Bride 59 861 h 14m -
Wessex Water SYDLING ST NICHOLAS NEAR HUISH FARM STORM TANK Sydling Water 31 728 h 42m -
Wessex Water Unknown Unknown 44 657 h 50m -
Wessex Water MARTINSTOWN B3159 South Winterbourne 33 561 h 33m -
Wessex Water MAIDEN NEWTON DORCHESTER ROAD STORM TANK River Frome 30 551 h -
Wessex Water GODMANSTONE River Cerne 24 545 h 18m -
Wessex Water PIDDLETRENTHIDE ACROSS RIVER FROM RIVENDELL (CSO4) River Piddle 23 544 h 59m -
Wessex Water BRIDPORT WEST STREET River Brit 48 533 h 49m -
Wessex Water PIDDLETRENTHIDE R/O TRENT HOUSE (CSO6) River Piddle 22 519 h 3m -
Wessex Water HALSTOCK WATERY LANE STORM TANK River Yeo 28 478 h 54m -
Wessex Water BISHOPS CAUNDLE BLIND LANE OFF A3030 STORM TANK Caundle Brook 21 437 h 52m -
Wessex Water BISHOPS CAUNDLE BLIND LANE OFF A3030 STORM TANK Caundle Brook 22 428 h 41m -
Wessex Water TOLLER PORCORUM TOLLER LANE INLET River Hooke 26 402 h 50m -
Wessex Water POYNTINGTON NEAR HILLSIDE FARM STORM TANK River Yeo 26 394 h 30m -
Wessex Water PUNCKNOWLE NEXT TO GULLY KNAP FARM STORM TANK River Bride 25 375 h 53m -
Wessex Water CHARMINSTER NORTH STREET River Frome 21 364 h 56m 0 h
Wessex Water BRIDPORT XXXX XXXX STORM TANK Lyme Bay 26 360 h 3m -
Wessex Water NETHERBURY BEAMINSTER River Brit 25 344 h 59m -
Wessex Water POYNTINGTON NEAR HILLSIDE FARM STORM TANK River Yeo 27 336 h 44m -
Wessex Water SYDLING ST NICHOLAS Sydling Water 15 333 h 13m -
Wessex Water BROADMAYNE WEST KNIGHTON ROAD STORM TANK Tadnoll Brook 21 327 h 20m -
Wessex Water BEAMINSTER SOUTHGATE River Brit 34 317 h 26m 85 h
Wessex Water ABBOTSBURY B3157 PORTESHAM ROAD STORM TANK Abbotsbury Brook 21 313 h 41m -
Wessex Water BRIDPORT XXXX XXXX STORM TANK Lyme Bay 33 300 h 57m -
Wessex Water DORCHESTER LOUDS MILL ST GEORGES ROAD STORM TANKS STORM TANK River Frome 14 296 h 44m -
Wessex Water BEER HACKETT Wriggle River 20 296 h 34m 1,004 h
Wessex Water BEAMINSTER SOUTHGATE River Brit 24 273 h 34m -
Wessex Water BROADMAYNE KNIGHTON LANE (PUMPED) Tadnoll Brook 19 271 h 3m -
Wessex Water PUNCKNOWLE NEXT TO GULLY KNAP FARM STORM TANK River Bride 19 258 h 19m -
Wessex Water HOLWELL NEW Caundle Brook 18 253 h 17m -
Wessex Water SOUTH PERROTT NEAR PIPPLEPEN FARM STORM TANK River Parrett 19 250 h 17m -
Wessex Water HOLWELL NEW Caundle Brook 22 243 h 5m -
Wessex Water NETHERBURY BEAMINSTER River Brit 27 242 h 42m 16 h
Wessex Water EVERSHOT OFF EAST HILL STORM TANK River Frome 24 226 h 47m -
Wessex Water CHIDEOCK MILL LANE STORM TANK River Winniford 16 222 h 10m -
Wessex Water BEER HACKETT Wriggle River 16 210 h 27m 7 h
Wessex Water FORDINGTON HIGH STREET NO 16 Dorchester Mill Stream 17 204 h 42m -
South West Water UPLYME STW_SSO_UPLYME River Lim 26 199 h 7m -
South West Water BROADWINDSOR STW_SSO_BROADWINDSOR Drimpton Stream 19 195 h 7m -
Wessex Water CHIDEOCK MILL LANE STORM TANK River Winniford 14 191 h 38m -
South West Water BROADWINDSOR STW_SSO_BROADWINDSOR Drimpton Stream 21 181 h 40m -
Wessex Water ABBOTSBURY B3157 PORTESHAM ROAD STORM TANK Abbotsbury Brook 13 180 h 31m -
Wessex Water SOUTH PERROTT NEAR PIPPLEPEN FARM STORM TANK River Parrett 14 178 h 32m -
South West Water UPLYME STW_SSO_UPLYME River Lim 25 173 h 13m -
Wessex Water EVERSHOT OFF EAST HILL STORM TANK River Frome 22 159 h 50m -
South West Water DRIMPTON SPST_PSCSOEO_DRIMPTON Temple Brook 15 145 h 58m -
South West Water HORN BRIDGE SPST_PSCSOEO_LYME REGIS River Lim 15 143 h 38m 86 h
South West Water HORN BRIDGE SPST_PSCSOEO_LYME REGIS River Lim 20 141 h 34m 1 h
South West Water MOSTERTON SPS_PSCSOEO_MOSTERTON River Axe 32 140 h 39m -
Wessex Water CHARMINSTER NORTH STREET River Frome 13 127 h 59m -
Wessex Water MAIDEN NEWTON DORCHESTER ROAD STORM TANK River Frome 10 125 h 28m -
South West Water DRIMPTON SPST_PSCSOEO_DRIMPTON Temple Brook 12 124 h 14m -
Wessex Water SHERBORNE WEST MILL LANE INLET River Yeo 19 123 h 22m -
Wessex Water TOLLER PORCORUM TOLLER LANE INLET River Hooke 10 117 h 53m -
South West Water MOSTERTON SPS_PSCSOEO_MOSTERTON River Axe 32 115 h 16m -
Wessex Water DORCHESTER LITTLE BRITTAIN ADJ SCOUT HUT Unknown 7 113 h 58m -
Wessex Water SHERBORNE WEST MILL LANE STORM TANK River Yeo 10 105 h 45m -
Wessex Water WEST BEXINGTON Chesil Beach 17 104 h 41m -
Wessex Water SHERBORNE WEST MILL LANE INLET River Yeo 14 97 h 43m 108 h
Wessex Water XXXXX FRAMPTON FARM Wriggle River 17 89 h 57m -
Wessex Water WEST MILTON INLET Mangerton River 15 77 h 20m -
Wessex Water CORSCOMBE OFF FUDGE HILL STORM TANK Halstock Stream 10 74 h 36m -
Wessex Water BRIDPORT SOUTH STREET DEPOT River Brit 30 71 h 54m 98 h
Wessex Water XXXXX FRAMPTON FARM Wriggle River 13 64 h 7m -
Wessex Water EVERSHOT COMMON River Frome 44 61 h 58m -
Wessex Water LEIGH BRIDGE FARM River Wriggle 10 61 h 52m -
Wessex Water BROADMAYNE WEST KNIGHTON ROAD STORM TANK Tadnoll Brook 10 58 h 56m -
Wessex Water EVERSHOT COMMON River Frome 19 57 h 58m -
Wessex Water DORCHESTER LOUDS MILL ST GEORGES ROAD INLET River Frome 6 51 h 18m -
Wessex Water BRIDPORT SOUTH BRIDGE TANK River Asker 15 48 h 17m -
Wessex Water BRIDPORT SOUTH BRIDGE TANK River Asker 12 48 h 14m -
Wessex Water BRADPOLE LEE LANE River Asker 8 47 h 16m -
Wessex Water CHARMOUTH SEA OUTFALL INLET Lyme Bay 21 39 h 24m 1 h
Wessex Water DORCHESTER LOUDS MILL ST GEORGES ROAD STORM TANKS STORM TANK River Frome 11 38 h 44m -
Wessex Water BRIDPORT WEST STREET River Brit 17 36 h 58m -
Wessex Water Unknown Unknown 6 36 h 51m -
South West Water BROADWINDSOR STW_SO_BROADWINDSOR Drimpton Stream 14 35 h 41m -
Wessex Water BRIDPORT WEST BAY SLUICES Bridport Harbour 4 35 h 14m -
Wessex Water LEIGH BRIDGE FARM River Wriggle 9 32 h 16m -
Wessex Water DORCHESTER KINGS ROAD NO 35 Mill Stream Via Sws 14 30 h 40m -
South West Water BROADWINDSOR STW_SO_BROADWINDSOR Drimpton Stream 29 29 h 56m -
Wessex Water SHERBORNE WEST MILL LANE STORM TANK River Yeo 9 29 h 54m -
Wessex Water FORDINGTON HIGH STREET NO 16 Dorchester Mill Stream 12 29 h 52m -
Wessex Water DORCHESTER PRINCES BRIDGE Unknown 2 24 h 40m -
South West Water WINSHAM STW_PSCSOEO_WINSHAM River Axe 38 22 h 3m -
Wessex Water CORSCOMBE OFF FUDGE HILL STORM TANK Halstock Stream 5 21 h 56m -
Wessex Water WEST BEXINGTON Chesil Beach 4 20 h 25m -
Wessex Water DORCHESTER KINGS ROAD NO 35 Mill Stream Via Sws 17 20 h 20m -
Wessex Water BRADPOLE LEE LANE River Asker 7 19 h 35m -
Wessex Water BRIDPORT WEST BAY SLUICES Bridport Harbour 6 19 h 30m -
South West Water WINSHAM STW_PSCSOEO_WINSHAM River Axe 14 18 h 20m 120 h
Wessex Water BRIDPORT WEST BAY Lyme Bay 5 15 h 50m -
Wessex Water CHIDEOCK SEATOWN Winniford 5 15 h 2m -
Wessex Water DORCHESTER LITTLE BRITTAIN ADJ SCOUT HUT Unknown 3 13 h 34m -
South West Water GUN CLIFF SPST_PSCSOEO_LYME REGIS River Lim 3 11 h 55m -
Wessex Water BRIDPORT WEST BAY Lyme Bay 5 11 h 50m -
Wessex Water LANGTON HERRING OFF LOWER FARM INLET West Fleet 8 10 h 30m -
Wessex Water LANGTON HERRING OFF LOWER FARM INLET West Fleet 15 9 h 11m -
Wessex Water SHIPTON GORGE OFF MARKETS LANE River Bride 1 8 h 29m -
South West Water THE COBB SPS_PSCSOEO_LYME REGIS Lyme Bay 7 8 h 15m -
Wessex Water ABBOTSBURY CHURCH STREET Mill Stream 5 8 h 6m -
Wessex Water BEAMINSTER HAMS PLOT SOUTH GATE River Brit 6 8 h 4m -
Wessex Water BRADFORD ABBAS MILL LANE River Yeo 2 7 h 58m -
Wessex Water WEST MILTON INLET Mangerton River 8 7 h 50m -
Wessex Water BRADFORD ABBAS MILL LANE River Yeo 1 7 h 25m -
Wessex Water CHIDEOCK SEATOWN Winniford 2 7 h 10m -
Wessex Water BRIDPORT SOUTH STREET DEPOT River Brit 12 7 h 2m 31 h
South West Water GUN CLIFF SPST_PSCSOEO_LYME REGIS River Lim 2 6 h 48m -
Wessex Water CHARMOUTH SEA OUTFALL INLET Lyme Bay 7 6 h 35m 9 h
Wessex Water SHERBORNE LUDBORNE ROAD / SOUTH STREET River Yeo Via Sws 5 6 h 34m -
Wessex Water SHERBORNE LUDBORNE ROAD / SOUTH STREET River Yeo Via Sws 5 5 h 58m -
South West Water THORNCOMBE STW_SO_THORNCOMBE River Synderford 5 5 h 27m -
Wessex Water BROADMAYNE KNIGHTON LANE (PUMPED) Tadnoll Brook 11 5 h 24m -
Wessex Water SANDFORD ORCAS Corton Denham Stream 1 5 h 6m -
Wessex Water BRIDPORT WEST BRIDGE River Brit 5 4 h 54m -
Wessex Water BURTON BRADSTOCK GROVE ROAD River Bride 1 4 h 36m -
Wessex Water GLANVILLES WOOTTON INLET Caundle Brook 3 3 h 59m -
Wessex Water ABBOTSBURY CHURCH STREET Mill Stream 6 3 h 58m -
Wessex Water BURTON BRADSTOCK GROVE ROAD River Bride 4 3 h 14m -
Wessex Water SHIPTON GORGE OFF MARKETS LANE River Bride 3 3 h 11m -
Wessex Water SYDLING ST NICHOLAS Sydling Water 1 2 h 43m -
South West Water THORNCOMBE STW_SO_THORNCOMBE River Synderford 1 2 h 28m -
South West Water THE COBB SPS_PSCSOEO_LYME REGIS Lyme Bay 1 2 h 23m -
Wessex Water CHARMOUTH STORM TANKS STORM TANK River Char 1 2 h 22m -
Wessex Water CHARMOUTH STORM TANKS STORM TANK River Char 1 2 h 17m -
Wessex Water SANDFORD ORCAS Corton Denham Stream 1 2 h 10m -
South West Water JERICHO_CSO_LYME REGIS River Lim 5 1 h 57m -
Wessex Water BRIDPORT WEST BRIDGE River Brit 4 1 h 52m -
Wessex Water SHERBORNE JUNCTION HOUND STREET AND CHEAP STREET River Yeo Via Sws 6 1 h 50m -
Wessex Water Unknown Unknown 1 1 h 50m -
Wessex Water Unknown Unknown 4 1 h 49m 0 h
Wessex Water BEAMINSTER HAMS PLOT SOUTH GATE River Brit 3 1 h 40m -
Wessex Water SHERBORNE ABBEY ROAD River Yeo 4 1 h 30m -
Wessex Water SHERBORNE JUNCTION HOUND STREET AND CHEAP STREET River Yeo Via Sws 4 1 h -
Wessex Water DORCHESTER VICTORIA ROAD / DAMERS ROAD Mill Stream Via Sws 1 0 h 38m -
Wessex Water DORCHESTER SOUTH WALKS / SOUTH STREET River Frome Via Sws 2 0 h 26m -
Wessex Water SHERBORNE CHEAP STREET River Yeo Via Sws 3 0 h 26m -
South West Water GOSLINGS BRIDGE_CSO_LYME REGIS River Lim 2 0 h 24m -
Wessex Water SHERBORNE ABBEY ROAD River Yeo 1 0 h 18m -
Wessex Water DORCHESTER LOUDS MILL ST GEORGES ROAD INLET River Frome 1 0 h 16m -
Wessex Water SHERBORNE NEWLANDS/THE AVENUE River Yeo Via Sws 1 0 h 12m -
Wessex Water SHERBORNE CHEAP STREET River Yeo Via Sws 1 0 h 8m -
Wessex Water FORDINGTON HIGH STREET NO 97 Unknown 1 0 h 6m -
Wessex Water GLANVILLES WOOTTON INLET Caundle Brook 1 0 h 6m -
Wessex Water BRIDPORT EAST BRIDGE River Asker 1 0 h 6m -
Wessex Water BRADPOLE FISHWEIR FOUL River Asker Via Sws 1 0 h 35 h
Wessex Water SHERBORNE NEWLANDS/THE AVENUE River Yeo Via Sws 1 0 h -
Wessex Water GODMANSTONE River Cerne 0 0 h 3 h
Wessex Water SHERBORNE WESTBURY OPP DALWOODS River Yeo Via Sws 0 0 h -
Wessex Water WEST STAFFORD DORCHESTER ROAD South Winterbourne 0 0 h 0 h
Wessex Water Unknown Unknown 0 0 h 80 h
South West Water GOSLINGS BRIDGE_CSO_LYME REGIS River Lim 0 0 h -
Wessex Water BRIDPORT WEST BAY ROAD REAR GARDEN OF XXX River Brit 0 0 h -
Wessex Water CHARMOUTH THE STREET ADJ BENHARH River Char 0 0 h -
Wessex Water FORDINGTON HIGH STREET NO 97 Unknown 0 0 h -
South West Water WINSHAM STW_SO_WINSHAM River Axe 0 0 h -
Wessex Water CHARMOUTH THE STREET ADJ BENHARH River Char 0 0 h -
Wessex Water BRIDPORT WEST BAY ROAD REAR GARDEN OF XXX River Brit 0 0 h -
Wessex Water BURTON BRADSTOCK BURTON SOUTHOVER River Bride 0 0 h -
Wessex Water SHERBORNE LONG STREET OUTSIDE THORN BANK River Yeo Via Sws 0 0 h -
Wessex Water BURTON BRADSTOCK BURTON SOUTHOVER River Bride 0 0 h 20 h
Wessex Water Unknown Unknown 0 0 h 1 h
Wessex Water SHERBORNE LONG STREET THE VINES River Yeo Via Sws 0 0 h -
South West Water WINSHAM STW_SO_WINSHAM River Axe 0 0 h -
Wessex Water DORCHESTER VICTORIA ROAD / DAMERS ROAD Mill Stream Via Sws 0 0 h -
Wessex Water SHERBORNE LONG STREET THE VINES River Yeo Via Sws 0 0 h -
Wessex Water BRADPOLE FISHWEIR FOUL River Asker Via Sws 0 0 h -
Wessex Water DORCHESTER PRINCES BRIDGE Unknown 0 0 h 19 h
Wessex Water DORCHESTER SOUTH WALKS / SOUTH STREET River Frome Via Sws 0 0 h -
Wessex Water WEST STAFFORD DORCHESTER ROAD South Winterbourne 0 0 h 18 h
South West Water JERICHO_CSO_LYME REGIS River Lim 0 0 h -

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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