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South Devon - 2025 Sewage

Polluted by sewage 32,851 hours in 2025 - That's 3.8 years , monitoring offline 3,979 hours , potential overflows 378 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 South Devon 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 South Devon

Daily Data

Jan - 7,347 hours , 494 offline
Feb - 3,833 hours , 254 potential
Mar - 939 hours , 67 potential
Apr - 810 hours , 0 potential
May - 30 hours
Jun - 380 hours , 10 offline
Jul - 27 hours
Aug - 213 hours , 758 offline
Sept - 471 hours
Oct - 227 hours , 387 offline
Nov - 5,101 hours , 1,401 offline
Dec - 13,424 hours , 56 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
South West Water HARBERTONFORD STW_SSO_HARBERTONFORD Harbourne River 79 1,490h 51m 99 h
South West Water SCORRITON STW_SO_SCORRITON Holy Brook 105 1,373h 25m 259 h
South West Water HOLNE STW_SO_HOLNE Holy Brook 98 1,294h 16m -
South West Water KINGSTON STW_SSO_KINGSTON Kingston Stream 62 1,119h 59m -
South West Water HARBERTONFORD STW_SSO_HARBERTONFORD Harbourne River 47 1,039h 44m -
South West Water KINGSTON STW_SSO_KINGSTON Kingston Stream 43 922h 36m -
South West Water SCORRITON STW_SO_SCORRITON Holy Brook 49 916h 47m -
South West Water RATTERY STW_SO_RATTERY Bidwell Brook 61 895h 9m -
South West Water TOTNES STW_SSO_TOTNES Dart Estuary 74 876h 47m 166 h
South West Water HARBERTON STW_SSO_HARBERTON Harbeton Stream 45 859h 11m -
South West Water SOUTH BRENT STW_SO_SOUTH BRENT River Avon 40 849h 49m -
South West Water RATTERY STW_SO_RATTERY Bidwell Brook 40 815h 22m -
South West Water HOLNE STW_SO_HOLNE Holy Brook 40 810h 16m -
South West Water HARBERTON STW_SSO_HARBERTON Harbeton Stream 70 796h 18m -
South West Water SLAPTON STW_SSO_SLAPTON Start Bay/Slapton Ley 52 675h 55m -
South West Water COMPTON CASTLE_CSO_COMPTON Aller Brook 38 642h 10m -
South West Water LOWER FERRY SPS_PSCSOEO_KINGSWEAR River Dart 62 578h 8m -
South West Water COMPTON CASTLE_CSO_COMPTON Aller Brook 50 553h 15m 29 h
South West Water BLACKAWTON STW_SSO_BLACKAWTON Blackawton Stream 27 545h 27m -
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 MORELEIGH STW_SO_MORELEIGH Unknown 30 440h 17m -
South West Water EAST ALLINGTON STW_SSO_EAST ALLINGTON Small Brook 24 430h 56m -
South West Water BLACKAWTON STW_SSO_BLACKAWTON Blackawton Stream 30 428h 34m -
South West Water DARTINGTON SCH TWO_CSO_DARTINGTON Bidwell Brook 33 427h 2m -
South West Water SOUTH BRENT STW_SO_SOUTH BRENT River Avon 29 419h -
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 DIPTFORD STW_SO_DIPTFORD River Avon 30 358h 30m -
South West Water RINGMORE STW_SO_RINGMORE Ringmore Stream 20 355h 36m -
South West Water TOTNES STW_SSO_TOTNES Dart Estuary 36 346h 51m -
South West Water STOKE GABRIEL SPS_PSCSOEO_TOTNES River Dart Estuary 18 333h 25m -
South West Water SLAPTON STW_SSO_SLAPTON Start Bay/Slapton Ley 21 322h 21m -
South West Water MORELEIGH STW_SO_MORELEIGH Unknown 53 313h 1m -
South West Water SCOUT HUT_CSO_STOKE GABRIEL River Dart Estuary 27 302h 19m 36 h
South West Water BROWNSTON STW_SO_LOWER BROWNSTON Shilston Brook 32 283h 56m -
South West Water WEST CHARLETON STW_SSO_CHARLETON Charleton Stream 22 280h 41m -
South West Water SHERFORD STW_SO_SHERFORD Sherford Stream 20 276h 21m -
South West Water SHADY LANE SPS_PSCSOEO_STOKE FLEMING Leonards Cove Stream 19 266h 8m -
South West Water STAVERTON STW_SSO_STAVERTON River Dart 16 261h 36m 56 h
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 BROWNSTON STW_SO_LOWER BROWNSTON Shilston Brook 20 203h 40m -
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 SHERFORD STW_SO_SHERFORD Sherford Stream 32 161h 41m 26 h
South West Water TOWNSTAL TANK_CSO_DARTMOUTH Old Mill Creek Via Sws 15 148h 23m -
South West Water DARTINGTON C_CSO_DARTINGTON Bidwell Brook 20 139h 9m -
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 DARTINGTON C_CSO_DARTINGTON Bidwell Brook 15 131h 40m -
South West Water TEXTILE MILL_CSO_DARTINGTON Bidwell Brook 20 131h 21m -
South West Water TEXTILE MILL_CSO_DARTINGTON Bidwell Brook 36 130h 1m 248 h
South West Water E CHARLETON SPS_PSCSOEO_EAST CHARLETON Frogmore Creek 7 130h -
South West Water HARBERTON STW_SO_HARBERTON Harbeton Stream 17 129h 36m -
South West Water DIPTFORD STW_SO_DIPTFORD River Avon 61 115h 30m -
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 BRENT MILL_CSO_SOUTH BRENT River Avon 15 104h 17m -
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 TOTNES TOWN SPST_PSCSOEO_TOTNES River Dart 39 98h 37m 332 h
South West Water E CHARLETON SPS_PSCSOEO_EAST CHARLETON Frogmore Creek 7 91h 8m -
South West Water LOVE LN_CSO_MARLDON Aller Brook 17 83h 18m 1 h
South West Water DARTINGTON SCH TWO_CSO_DARTINGTON Bidwell Brook 12 79h 14m -
South West Water SOUTH MILTON STW_SSO_SOUTH MILTON South Milton Stream 13 78h 27m 164 h
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 TOTNES TOWN SPST_PSCSOEO_TOTNES River Dart 15 60h 48m 468 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 MAYORS AVENUE SPST_PSCSO_DARTMOUTH Dart River Estuary 28 50h 21m -
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 OXEN COVE SPST_PSCSOEO_BRIXHAM Brixham Outer Harbour 22 45h 37m -
South West Water BRIDGETOWN STEAMER QUAY_CSO_TOTNES River Dart Estuary 12 45h 6m -
South West Water HARBERTON STW_SO_HARBERTON Harbeton Stream 26 44h 46m -
South West Water BOLTON STREET_CSO_BRIXHAM English Channel 37 44h 29m -
South West Water BRIDGETOWN STEAMER QUAY_CSO_TOTNES River Dart Estuary 24 44h 16m -
South West Water EAST ALLINGTON STW_SSO_EAST ALLINGTON Small Brook 18 42h 42m -
South West Water STAVERTON STW_SSO_STAVERTON River Dart 8 41h 45m -
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 EDEN PARK_CSO_BRIXHAM Higher Brixham Stream 16 38h 15m -
South West Water EDEN PARK_CSO_BRIXHAM Higher Brixham Stream 10 37h 30m -
South West Water SLAPTON_CSO_SLAPTON Stream 42 36h 27m 92 h
South West Water QUARRY CLOSE_CSO_TOTNES Malt Mill Lake 10 31h 42m -
South West Water TOR PARK SPS_PSCSOEO_PAIGNTON Yalberton Stream Via Sws 7 31h 20m -
South West Water SWALLOWFIELDS_CSO_TOTNES River Dart Estuary 9 30h 10m -
South West Water TOR PARK SPS_PSCSOEO_PAIGNTON Yalberton Stream Via Sws 8 30h 2m -
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 SWALLOWFIELDS_CSO_TOTNES River Dart Estuary 16 27h 33m 6 h
South West Water BOLTON STREET_CSO_BRIXHAM English Channel 16 26h 58m -
South West Water SLAPTON_CSO_SLAPTON Stream 17 26h 40m -
South West Water OXEN COVE SPST_PSCSOEO_BRIXHAM Brixham Outer Harbour 12 26h 19m -
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 31 FORE STREET_CSO_TOTNES River Dart 29 22h 59m -
South West Water WARFLEET CREEK SPS_PSCSOEO_DARTMOUTH River Dart Estuary 4 22h 15m -
South West Water SHINNERS BRIDGE_CSO_DARTINGTON Bidwell Brook 10 21h 10m -
South West Water LODDISWELL STW_SSO_LODDISWELL River Avon 9 20h 15m -
South West Water BRENT MILL_CSO_SOUTH BRENT River Avon 17 19h 32m -
South West Water CHURSCOMBE CROSS SPS_PSCSOEO_MARLDON Kirkham Stream 8 17h 15m -
South West Water SHADYCOMBE TANK_CSOEO_SALCOMBE Shadycombe Creek 2 16h 39m 50 h
South West Water ASHPRINGTON STW_SSO_ASHPRINGTON River Harbourne 11 15h 29m -
South West Water CHURSCOMBE CROSS SPS_PSCSOEO_MARLDON Kirkham Stream 14 15h 9m -
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 LOVE LN_CSO_MARLDON Aller Brook 19 13h 21m -
South West Water FURZEGOOD SPS_PSCSOEO_MARLDON Gatcombe Brook 15 13h 20m -
South West Water MILL CREEK SPS_PSCSOEO_DITTISHAM Dittisham Mill Creek-Estuarine 9 12h 36m -
South West Water SHUTE PARK_CSO_MALBOROUGH Combe Stream 17 11h 52m -
South West Water ASHPRINGTON STW_SSO_ASHPRINGTON River Harbourne 7 11h 28m -
South West Water MAYFLOWER DRIVE_CSO_BRIXHAM Higher Brixham Stream 11 10h 20m -
South West Water QUARRY CLOSE_CSO_TOTNES Malt Mill Lake 7 10h 16m -
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 SOUTHVILLE SPST_PSCSOEO_KINGSBRIDGE Kingsbridge Estuary 6 8h 14m -
South West Water FURZEGOOD SPS_PSCSOEO_MARLDON Gatcombe Brook 7 8h 11m -
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 31 FORE STREET_CSO_TOTNES River Dart 8 5h 50m -
South West Water SHINNERS BRIDGE_CSO_DARTINGTON Bidwell Brook 8 5h 35m -
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 KILN ROAD SPS_PSCSOEO_GALMPTON Galmpton Stream 6 4h 25m -
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 ST KATHERINES WAY_ CSO_TOTNES River Dart Estuary Via Sws 8 3h 48m -
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 MAYFLOWER DRIVE_CSO_BRIXHAM Higher Brixham Stream 14 3h 32m -
South West Water MALBOROUGH STW_SO_SALCOMBE Combe Stream 2 3h 31m -
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 ST KATHERINES WAY_ CSO_TOTNES River Dart Estuary Via Sws 3 2h 18m -
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 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 STOKE GABRIEL SPS_PSCSOEO_TOTNES River Dart Estuary 1 0h 36m -
South West Water ST JOHNS TERRACE_CSO_TOTNES Malt Mill Lake Via Sw Sewer 2 0h 34m 111 h
South West Water FIELD ADJ COUNCIL HSES_CSO_BLACKAWTON Blackawton Stream 2 0h 29m -
South West Water FIELD ADJ COUNCIL HSES_CSO_BLACKAWTON Blackawton Stream 1 0h 20m -
South West Water ST JOHNS TERRACE_CSO_TOTNES Malt Mill Lake Via Sw Sewer 3 0h 20m -
South West Water SOUTH MILTON_CSO_SOUTH MILTON Stream 2 0h 20m -
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 BERRY HEAD_CSO_BRIXHAM Torbay 1 0h 2m -
South West Water NORTH SANDS SPST_PSCSOEO_SALCOMBE Kingsbridge Estuary 0 0h -
South West Water SHADYCOMBE TANK_CSOEO_SALCOMBE Shadycombe Creek 0 0h -
South West Water WARREN POINT SPS_PSCSOEO_BIGBURY Bigbury Bay 0 0h -
South West Water ASHPRINGTON STW_SO_ASHPRINGTON River Harbourne 0 0h -
South West Water LEONARDS COVE_PSCSOEO_STOKE FLEMING Leonards Cove Stream 0 0h -
South West Water BERRY HEAD_CSO_BRIXHAM Torbay 0 0h -
South West Water PRIORY SLIP SPS_PSCSOEO_KINGSWEAR Dart Estuary 0 0h -
South West Water WESTVILLE SPST_PSCSOEO_KINGSBRIDGE Kingsbridge Estuary 0 0h -
South West Water YARROW BANK SPS_PSCSOEO_KINGSWEAR Dart Estuary 0 0h -
South West Water INNER HOPE COVE SPS_PSCSOEO_HOPE COVE Hope Cove 0 0h -
South West Water SOUTH SANDS SPS_PSCSOEO_SALCOMBE Combe Stream 0 0h -
South West Water WESTVILLE SPST_PSCSOEO_KINGSBRIDGE Kingsbridge Estuary 0 0h -
South West Water WEST ALVINGTON_CSO_W ALVINGTON Kingsbridge Estuary 0 0h -
South West Water CHILLINGTON SPS_PSCSOEO_CHILLINGTON Frogmore Stream 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.

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Contains Water UK National Storm Overflow Hub Data CC-BY-SA 4.0 and analysis © 2025 Top-Of-The-Poops

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