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Area of Outstanding Natural Beauty

South Devon - 2025 Sewage

Polluted by sewage 16,827 hours in 2025 - That's 1.95 years , monitoring offline 4,158 hours , potential overflows 54 hours

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

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Totals for 2025

Sewage16,827 hours
Monitoring offline4,158 hours
Potential pollution54 hours
Storm overflows152

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Daily Data - when it rained, and when they spilled

Square = rainfall none → heavy
Drop = sewage minutes → all day
Potential pollution Monitoring offline
Jan - 4,103 hours , 233 offline
Feb - 2,078 hours
Mar - 427 hours , 6 potential
Apr - 466 hours , 0 potential
May - 70 hours , 47 potential
Jun - 294 hours , 10 offline
Jul - 23 hours
Aug - 144 hours , 659 offline
Sept - 203 hours
Oct - 54 hours , 286 offline
Nov - 1,009 hours , 2,555 offline
Dec - 7,950 hours , 354 offline

Storm overflows in and around South Devon

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
South West Water KINGSTON STW_SSO_KINGSTON Kingston Stream 62 1,119h 59m -
South West Water KINGSTON STW_SSO_KINGSTON Kingston Stream 43 922h 36m -
South West Water WEMBURY STW_SSO_WEMBURY Wembury Bay 41 760h 55m -
South West Water WEMBURY STW_SSO_WEMBURY Wembury Bay 33 725h 10m -
South West Water SLAPTON STW_SSO_SLAPTON Start Bay/Slapton Ley 52 675h 55m -
South West Water BRIDGEND SPS_PSCSOEO_NEWTON FERRERS Newton Creek 33 600h 2m 577 h
South West Water LOWER FERRY SPS_PSCSOEO_KINGSWEAR River Dart 62 578h 8m -
South West Water CORNWORTHY STW_SSO_DARTMOUTH Dart Estuary 29 544h 11m -
South West Water CORNWORTHY STW_SSO_DARTMOUTH Dart Estuary 48 496h 44m -
South West Water SCOUT HUT_CSO_STOKE GABRIEL River Dart Estuary 23 463h 26m -
South West Water MODBURY STW_SSO_MODBURY Ayleston Brook 37 457h 47m 2 h
South West Water TORCROSS SPST_PSCSOEO_TORCROSS Start Bay 21 402h 8m 1 h
South West Water EAST PRAWLE STW_SO_SALCOMBE Unnamed Coastal Stream 47 380h 43m -
South West Water HOLBETON STW_SSO_HOLBETON River Erme 22 375h 52m 0 h
South West Water DIPTFORD STW_SO_DIPTFORD River Avon 30 358h 30m -
South West Water RINGMORE STW_SO_RINGMORE Ringmore Stream 20 355h 36m -
South West Water STOKE GABRIEL SPS_PSCSOEO_TOTNES River Dart Estuary 18 333h 25m -
South West Water BRIDGEND SPS_PSCSOEO_NEWTON FERRERS Newton Creek 19 323h 26m -
South West Water SLAPTON STW_SSO_SLAPTON Start Bay/Slapton Ley 21 322h 21m -
South West Water SCOUT HUT_CSO_STOKE GABRIEL River Dart Estuary 27 302h 19m 36 h
South West Water WEST CHARLETON STW_SSO_CHARLETON Charleton Stream 22 280h 41m -
South West Water SHADY LANE SPS_PSCSOEO_STOKE FLEMING Leonards Cove Stream 19 266h 8m -
South West Water DITCH END S T_PSCSOEO_EAST PORTLEMOUTH Salcombe Estuary 24 260h 27m -
South West Water POUNDWELL MEADOW_CSO_MODBURY Ayleston Brook 15 250h 19m -
South West Water TORCROSS SPST_PSCSOEO_TORCROSS Start Bay 21 244h 15m -
South West Water STRETE STW_SO_DARTMOUTH Start Bay, English Channel 21 236h 32m -
South West Water MODBURY STW_SSO_MODBURY Ayleston Brook 16 200h 55m -
South West Water POUNDWELL MEADOW_CSO_MODBURY Ayleston Brook 18 195h 37m -
South West Water SOUTH MILTON STW_SSO_SOUTH MILTON South Milton Stream 26 190h 56m 528 h
South West Water STRETE STW_SO_DARTMOUTH Start Bay, English Channel 24 184h 26m -
South West Water CHILLINGTON STW_SSO_CHILLINGTON Chillington Stream 14 182h 25m -
South West Water GALMPTON HOPE COVE STW_SSO_SALCOMBE Galmpton Stream 9 177h 14m -
South West Water TOWNSTAL TANK_CSO_DARTMOUTH Old Mill Creek Via Sws 15 148h 23m -
South West Water LODDISWELL STW_SSO_LODDISWELL River Avon 8 132h 55m -
South West Water COMMINUTOR HOUSE GOULD RD_CSO_SALCOMBE Shadycombe Creek 65 131h 42m 22 h
South West Water E CHARLETON SPS_PSCSOEO_EAST CHARLETON Frogmore Creek 7 130h -
South West Water DIPTFORD STW_SO_DIPTFORD River Avon 61 115h 30m -
South West Water YEALMPTON STW_SSO_YEALMPTON River Yealm 9 113h 14m -
South West Water WEST CHARLETON STW_SSO_CHARLETON Charleton Stream 27 113h 3m -
South West Water GALMPTON HOPE COVE STW_SSO_SALCOMBE Galmpton Stream 8 111h 45m 895 h
South West Water DITTISHAM MAIN STW_SO_DITTISHAM River Dart Estuary 18 111h 40m -
South West Water SMITH ST_CSO_DARTMOUTH River Dart Via Sws 50 104h 14m -
South West Water PINHEY EJECTOR SPS_PSCSOEO_MALBOROUGH Blanksmill Creek 26 103h 13m -
South West Water CHILLINGTON STW_SSO_CHILLINGTON Chillington Stream 14 102h 35m -
South West Water DITTISHAM MAIN STW_SO_DITTISHAM River Dart Estuary 26 99h 34m -
South West Water HOLBETON STW_SO_HOLBETON River Erme 21 96h 48m -
South West Water WEMBURY BEACH SPST_PSCSOEO_WEMBURY Wembury Bay 7 93h 34m 26 h
South West Water E CHARLETON SPS_PSCSOEO_EAST CHARLETON Frogmore Creek 7 91h 8m -
South West Water HEYBROOK BAY SPS_PSCSOEO_WEMBURY English Channel- Heybrook Bay 19 83h 42m -
South West Water SOUTH MILTON STW_SSO_SOUTH MILTON South Milton Stream 13 78h 27m 164 h
South West Water HMS CAMBRIDGE SPS_PSCSOEO_WEMBURY English Channelat Wembury Bay 8 76h 18m -
South West Water TOWNSTAL TANK_CSO_DARTMOUTH Old Mill Creek Via Sws 13 73h 41m -
South West Water FERRY BOAT SPST_PSCSOEO_DITTISHAM River Dart Estuary 44 71h 47m -
South West Water DITCH END S T_PSCSOEO_EAST PORTLEMOUTH Salcombe Estuary 4 64h 9m -
South West Water SMITH ST_CSO_DARTMOUTH River Dart Via Sws 24 63h 53m -
South West Water PRINCE OF WALES RD_CSO_KINGSBRIDGE Kingsbridge Estuary 36 63h 41m -
South West Water MAYORS AVENUE SPST_PSCSO_DARTMOUTH Dart River Estuary 15 62h 43m -
South West Water FERRY BOAT SPST_PSCSOEO_DITTISHAM River Dart Estuary 20 62h 32m 3 h
South West Water RINGMORE STW_SO_RINGMORE Ringmore Stream 25 61h 9m 10 h
South West Water BRIDGE STREET_CSO_KINGSBRIDGE Kingsbridge Estuary 45 59h 55m -
South West Water SHADY LANE SPS_PSCSOEO_STOKE FLEMING Leonards Cove Stream 20 58h 33m -
South West Water HEYBROOK BAY SPS_PSCSOEO_WEMBURY English Channel- Heybrook Bay 41 52h 3m -
South West Water BRIXTON STW_SSO_BRIXTON Broad Ooze, Yealm Estuary 21 50h 50m -
South West Water MAYORS AVENUE SPST_PSCSO_DARTMOUTH Dart River Estuary 28 50h 21m -
South West Water CHURCH WAY_CSO_YEALMPTON River Yealm 6 50h 16m 47 h
South West Water COMMINUTOR HOUSE GOULD RD_CSO_SALCOMBE Shadycombe Creek 18 46h 42m 73 h
South West Water BRIDGE STREET_CSO_KINGSBRIDGE Kingsbridge Estuary 21 46h 36m -
South West Water PRINCE OF WALES RD_CSO_KINGSBRIDGE Kingsbridge Estuary 17 40h 43m -
South West Water EAST PRAWLE STW_SO_SALCOMBE Unnamed Coastal Stream 12 40h 36m -
South West Water SLAPTON_CSO_SLAPTON Stream 42 36h 27m 92 h
South West Water GABBER INJECTOR SPS_PSCSOEO_WEMBURY Hey Brook 7 33h 50m -
South West Water YEALMPTON SPST_PSCSOEO_YEALMPTON River Yealm 4 30h 14m -
South West Water SHUTE PARK_CSO_MALBOROUGH Combe Stream 37 29h 8m 0 h
South West Water LOWER FERRY SPS_PSCSOEO_KINGSWEAR River Dart 15 28h 41m -
South West Water SLAPTON_CSO_SLAPTON Stream 17 26h 40m -
South West Water CHILLINGTON SPS_PSCSOEO_CHILLINGTON Frogmore Stream 2 25h 54m -
South West Water BATSON SPS_PSCSOEO_SALCOMBE Baston Creek 17 23h 46m -
South West Water WARFLEET CREEK SPS_PSCSOEO_DARTMOUTH River Dart Estuary 4 22h 15m -
South West Water LODDISWELL STW_SSO_LODDISWELL River Avon 9 20h 15m -
South West Water WEMBURY BEACH SPST_PSCSOEO_WEMBURY Wembury Bay 5 19h 22m -
South West Water SHADYCOMBE TANK_CSOEO_SALCOMBE Shadycombe Creek 2 16h 39m 50 h
South West Water GABBER INJECTOR SPS_PSCSOEO_WEMBURY Hey Brook 9 15h 45m 577 h
South West Water YEALMPTON STW_SSO_YEALMPTON River Yealm 5 15h 40m -
South West Water ASHPRINGTON STW_SSO_ASHPRINGTON River Harbourne 11 15h 29m -
South West Water OUTER HOPE COVE SPST_PSCSOEO_HOPE COVE Hope Cove 11 14h 59m -
South West Water CARAVAN PARK_CSO_STOKENHAM Slapton Ley 12 13h 48m -
South West Water TORBRIDGE SOUTH_CSO_YEALMPTON River Yealm 5 13h 3m -
South West Water MILL CREEK SPS_PSCSOEO_DITTISHAM Dittisham Mill Creek-Estuarine 9 12h 36m -
South West Water HOLBETON STW_SO_HOLBETON River Erme 20 11h 57m -
South West Water SHUTE PARK_CSO_MALBOROUGH Combe Stream 17 11h 52m -
South West Water HMS CAMBRIDGE SPS_PSCSOEO_WEMBURY English Channelat Wembury Bay 7 11h 47m -
South West Water ASHPRINGTON STW_SSO_ASHPRINGTON River Harbourne 7 11h 28m -
South West Water KILN ROAD SPS_PSCSOEO_GALMPTON Galmpton Stream 4 8h 59m -
South West Water O/SEAS EST W SPS_PSCSOEO_STOKE FLEMING English Channel 10 8h 52m -
South West Water BRIXTON STW_SSO_BRIXTON Broad Ooze, Yealm Estuary 2 8h 45m -
South West Water SOUTHVILLE SPST_PSCSOEO_KINGSBRIDGE Kingsbridge Estuary 6 8h 14m -
South West Water MEADOWSIDE CHILLINGTON_CSO Frogmore Creek 10 7h 34m -
South West Water DARTHAVEN MARINA SPS_PSCSOEO_KINGSWEAR River Dart 9 6h 42m -
South West Water MALBOROUGH STW_SO_SALCOMBE Combe Stream 5 6h 31m -
South West Water SHADYCOMBE TK LOWER TUNNELS_CSO_SALCOMBE Batson Creek 5 6h 7m -
South West Water MILL CREEK SPS_PSCSOEO_DITTISHAM Dittisham Mill Creek-Estuarine 6 5h 7m -
South West Water PINHEY EJECTOR SPS_PSCSOEO_MALBOROUGH Blanksmill Creek 4 5h 3m -
South West Water AVETON GIFFORD STW_SSO_AVETON GIFFORD River Avon Estuary 3 4h 47m -
South West Water YEALMPTON SPST_PSCSOEO_YEALMPTON River Yealm 2 4h 38m -
South West Water KILN ROAD SPS_PSCSOEO_GALMPTON Galmpton Stream 6 4h 25m -
South West Water HOLBETON STW_SSO_HOLBETON River Erme 12 4h 23m 85 h
South West Water INNER HOPE COVE SPS_PSCSOEO_HOPE COVE Hope Cove 3 3h 59m -
South West Water CARAVAN PARK_CSO_STOKENHAM Slapton Ley 10 3h 53m 659 h
South West Water DARTHAVEN MARINA SPS_PSCSOEO_KINGSWEAR River Dart 6 3h 41m -
South West Water OUTER HOPE COVE SPST_PSCSOEO_HOPE COVE Hope Cove 4 3h 34m -
South West Water MALBOROUGH STW_SO_SALCOMBE Combe Stream 2 3h 31m -
South West Water TORBRIDGE SOUTH_CSO_YEALMPTON River Yealm 4 3h 30m -
South West Water MEADOWSIDE CHILLINGTON_CSO Frogmore Creek 5 3h 29m -
South West Water BATSON SPS_PSCSOEO_SALCOMBE Baston Creek 4 3h 20m -
South West Water PRIORY SLIP SPS_PSCSOEO_KINGSWEAR Dart Estuary 3 3h 20m -
South West Water SHADYCOMBE TK LOWER TUNNELS_CSO_SALCOMBE Batson Creek 6 2h 16m 9 h
South West Water SOUTH MILTON_CSO_SOUTH MILTON Stream 2 2h 2m -
South West Water SOUTHVILLE SPST_PSCSOEO_KINGSBRIDGE Kingsbridge Estuary 1 1h 47m -
South West Water WARFLEET CREEK SPS_PSCSOEO_DARTMOUTH River Dart Estuary 2 1h 40m -
South West Water COURTWOOD SPS_PSCSOEO_NEWTON FERRERS River Yealm Estuary 3 1h 24m -
South West Water WINSTON LN_CSO_BRIXTON Silverbridge Lake 3 1h 1m -
South West Water AVETON GIFFORD STW_SSO_AVETON GIFFORD River Avon Estuary 1 1h -
South West Water O/SEAS EST W SPS_PSCSOEO_STOKE FLEMING English Channel 4 0h 53m -
South West Water THE WARREN SPST_PSCSOEO_BIGBURY ON SEA Bigbury Bay 2 0h 45m -
South West Water TORBRIDGE NORTH_CSO_YEALMPTON River Yealm 6 0h 42m -
South West Water STOKE GABRIEL SPS_PSCSOEO_TOTNES River Dart Estuary 1 0h 36m -
South West Water KILN QUAY SPS_PSCSOEO_NEWTON FERRERS Newton Creek 2 0h 33m -
South West Water SOUTH MILTON_CSO_SOUTH MILTON Stream 2 0h 20m -
South West Water WINSTON LN_CSO_BRIXTON Silverbridge Lake 1 0h 19m -
South West Water YARROW BANK SPS_PSCSOEO_KINGSWEAR Dart Estuary 1 0h 16m -
South West Water NORTH SANDS SPST_PSCSOEO_SALCOMBE Kingsbridge Estuary 1 0h 13m -
South West Water THE WARREN SPST_PSCSOEO_BIGBURY ON SEA Bigbury Bay 1 0h 4m -
South West Water RIVERSIDE NO. 1_CSO_NEWTON FERRERS Newton Creek 1 0h 2m -
South West Water COURTWOOD SPS_PSCSOEO_NEWTON FERRERS River Yealm Estuary 0 0h -
South West Water NOSS MAYO SPST_PSCSOEO_NEWTON FERRERS Newton Creek 0 0h 347 h
South West Water CHURCH WAY_CSO_YEALMPTON River Yealm 0 0h -
South West Water INNER HOPE COVE SPS_PSCSOEO_HOPE COVE Hope Cove 0 0h -
South West Water ASHPRINGTON STW_SO_ASHPRINGTON River Harbourne 0 0h -
South West Water KILN QUAY SPS_PSCSOEO_NEWTON FERRERS Newton Creek 0 0h -
South West Water TORBRIDGE NORTH_CSO_YEALMPTON River Yealm 0 0h -
South West Water RIVERSIDE NO. 1_CSO_NEWTON FERRERS Newton Creek 0 0h -
South West Water LEONARDS COVE_PSCSOEO_STOKE FLEMING Leonards Cove Stream 0 0h -
South West Water YARROW BANK SPS_PSCSOEO_KINGSWEAR Dart Estuary 0 0h -
South West Water WEST ALVINGTON_CSO_W ALVINGTON Kingsbridge Estuary 0 0h -
South West Water WESTVILLE SPST_PSCSOEO_KINGSBRIDGE Kingsbridge Estuary 0 0h -
South West Water WESTVILLE SPST_PSCSOEO_KINGSBRIDGE Kingsbridge Estuary 0 0h -
South West Water WARREN POINT SPS_PSCSOEO_BIGBURY Bigbury Bay 0 0h -
South West Water CHILLINGTON SPS_PSCSOEO_CHILLINGTON Frogmore Stream 0 0h -
South West Water SOUTH SANDS SPS_PSCSOEO_SALCOMBE Combe Stream 0 0h -
South West Water NORTH SANDS SPST_PSCSOEO_SALCOMBE Kingsbridge Estuary 0 0h -
South West Water PRIORY SLIP SPS_PSCSOEO_KINGSWEAR Dart Estuary 0 0h -
South West Water SHADYCOMBE TANK_CSOEO_SALCOMBE Shadycombe Creek 0 0h -

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

Annual figures up to and including 2025 come from official water company returns. The 2026 figure is our own estimate, derived continuously from the companies' live data feeds.

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.