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South Devon

Polluted by sewage 3,733 times in 2025 lasting 30,085 hours - That's 3.48 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 South Devon in 2026

So far this year (as of 18 May 2026, 12:00) there has been 33,792 hours of sewage overflows, from 188 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s - that's 3.91 years!

Totals for South Devon in 2025

88 Sites polluted by South West Water
3,733 sewage dumps
30,085 hours duration
That's 3.48 years. On average 10.2 times a day

Change Over Time

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Pollution Summary 2025

Here are all the reported sewage overflow totals for South Devon 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 %
South West Water Harbourne River HARBERTONFORD WWTW 120 2,494 97.8
South West Water Kingston Stream KINGSTON WWTW 103 2,042 100
South West Water Harbeton Stream HARBERTON WWTW 168 1,838 100
South West Water Holy Brook SCORRITON STW 141 1,836 100
South West Water Bidwell Brook RATTERY WWTW CSO 107 1,712 100
South West Water Holy Brook HOLNE WWTW 117 1,405 100
South West Water River Avon SOUTH BRENT WWTW 66 1,268 100
South West Water Dart Estuary CORNWORTHY WWTW 74 1,001 100
South West Water Start Bay/Slapton Ley SLAPTON WASTEWATER TREATMENT WORKS 72 996 100
South West Water Blackawton Stream BLACKAWTON SEWAGE TREATMENT WORKS 56 973 100
South West Water River Dart Estuary SCOUT HUT CSO 51 772 98.3
South West Water Unknown MORELEIGH STW 92 764 100
South West Water Dart Estuary TOTNES STW 123 698 100
South West Water Aller Brook COMPTON CASTLE CSO 69 658 79
South West Water Ayleston Brook MODBURY WASTEWATER TREATMENT WORKS 54 656 100
South West Water Start Bay TORCROSS PUMPING STATION 40 654 100
South West Water Bidwell Brook DARTINGTON B CSO 45 507 100
South West Water Shilston Brook BROWNSTON STW 59 486 100
South West Water River Avon DIPTFORD SEWAGE TREATMENT WORKS 111 484 100
South West Water Small Brook EAST ALLINGTON WWTW 40 471 100
South West Water Ayleston Brook POUNDWELL MEADOW CSO 33 436 99.3
South West Water Start Bay, English Channel STRETE WWTW 49 432 99.8
South West Water Unnamed Coastal Stream EAST PRAWLE STW 60 423 100
South West Water Ringmore Stream RINGMORE STW 26 394 100
South West Water Charleton Stream WEST CHARLETON STW 46 390 100
South West Water River Dart Estuary STOKE GABRIEL PSCSO/EO 20 334 100
South West Water Salcombe Estuary EAST PORTLEMOUTH WWTW 29 324 100
South West Water Leonards Cove Stream STOKE FLEMING PUMPING STATION 36 324 100
South West Water River Dart STAVERTON WWTW 24 295 96.4
South West Water Galmpton Stream GALMPTON (HOPE COVE) STW 16 287 93.2
South West Water Chillington Stream CHILLINGTON & FROGMORE STW 28 284 100
South West Water Sherford Stream SHERFORD WASTEWATER TREATMENT WORKS 50 282 99.8
South West Water Bidwell Brook DARTINGTON C CSO 33 270 98.7
South West Water South Milton Stream SOUTH MILTON STW 37 268 97.7
South West Water Bidwell Brook TEXTILE MILL 52 251 97.2
South West Water River Dart TOTNES TOWN PUMPING STATION 90 244 99.8
South West Water Old Mill Creek Via Sws TOWNSTAL TANK CSO 25 228 95.2
South West Water Frogmore Creek EAST CHARLETON PUMPING STATION 15 221 99.4
South West Water River Dart Estuary DITTISHAM WWTW 46 212 99.9
South West Water Shadycombe Creek COMMINUTOR HOUSE CSO 89 200 97.4
South West Water Aller Brook LOVE LANE COMBINED SEWER OVERFLOW 63 169 99.8
South West Water River Dart Via Sws SMITH STREET CSO 85 162 100
South West Water River Avon LODDISWELL WWTW 15 151 100
South West Water River Dart Estuary FERRY BOAT INN PUMPING STATION 73 143 100
South West Water Kingsbridge Estuary BRIDGE STREET QUAY CSO 50 141 100
South West Water River Avon BRENT MILL CSO 36 129 97.3
South West Water Dart River Estuary MAYORS AVENUE PUMPING STATION 46 116 100
South West Water Blanksmill Creek MALBOROUGH EJECTOR PS 28 108 100
South West Water River Dart Estuary STEAMER QUAY BRIDGETOWN CSO 39 90 100
South West Water English Channel BOLTON STREET CSO 64 78 100
South West Water River Dart LOWER FERRY PUMPING STATION 44 76 100
South West Water Higher Brixham Stream EDEN PARK CSO 23 75 100
South West Water Brixham Outer Harbour OXEN COVE ATTENUATION TANK CSO 39 75 100
South West Water Stream KIMBERLEY NURSERIES CSO 68 67 100
South West Water Yalberton Stream Via Sws TOR PARK ROAD PUMPING STATION 14 61 100
South West Water River Dart Estuary SWALLOWFIELDS CSO 28 60 98.7
South West Water Kingsbridge Estuary PRINCE OF WALES ROAD CSO 35 59 100
South West Water Malt Mill Lake QUARRY CLOSE CSO 23 43 96.4
South West Water River Dart 31 FORE STREET CSO 46 35 98.8
South West Water Kirkham Stream MARLDON (CHURSCOMBE CROSS) PS 20 32 100
South West Water Baston Creek BATSON GREEN PUMPING STATION 17 31 99.9
South West Water Combe Stream QUILLETTS CSO 47 29 100
South West Water River Harbourne ASHPRINGTON WWTW 19 28 97.1
South West Water Frogmore Stream HOME CLOSE PUMPING STATION 2 25 100
South West Water Bidwell Brook SHINNER'S BRIDGE CSO 18 25 89
South West Water River Dart Estuary WARFLEET CREEK PUMPING STATION 6 23 99.4
South West Water Gatcombe Brook FURZEGOOD PUMPING STATION 26 21 100
South West Water Shadycombe Creek SHADYCOMBE LOWER TUNNEL 4 18 98.9
South West Water Slapton Ley STOKENHAM CARAVAN PARK CSO 28 18 76.3
South West Water Hope Cove OUTER HOPE PUMPING STATION 14 18 100
South West Water Dittisham Mill Creek-Estuarine MILL CREEK PUMPING STATION 15 16 100
South West Water Frogmore Creek CHILLINGTON COMBINED SEWER OVERFLOW 25 13 100
South West Water Galmpton Stream GALMPTON PUMPING STATION 10 13 100
South West Water River Dart DARTHAVEN MARINA PUMPING STATION 33 11 100
South West Water Kingsbridge Estuary SOUTHVILLE EMBANKMENT PS 8 10 100
South West Water Combe Stream MALBOROUGH VILLAGE PUMPING STATION 6 10 100
South West Water English Channel OVERSEAS ESTATE WEST PS 24 9 100
South West Water River Dart Estuary Via Sws ST KATHERINE'S WAY CSO 17 7 100
South West Water Avon River Estuary AVETON GIFFORD STW 4 6 95.3
South West Water Malt Mill Lake Via Sw Sewer ST JOHNS TERRACE CSO 20 5 98.7
South West Water Hope Cove INNER HOPE PSCSO/EO 3 4 100
South West Water Blackawton Stream FIELD ADJ COUNCIL HOUSES CSO 15 3 97.3
South West Water Dart Estuary PRIORY SLIP PUMPING STATION 5 3 100
South West Water Stream SOUTH MILTON CSO 6 2 99
South West Water Batson Creek SHADYCOMBE LOWER TUNNEL 7 2 98.9
South West Water Aller Brook COMPTON AND MARLDON WWTW 1 1 100
South West Water River Wash TUCKENHAY BRIDGE PS 1 0 98
South West Water Kingsbridge Estuary NORTH SANDS PUMPING STATION 1 0 100
South West Water English Channel APPLETREE CSO 0 0 100
South West Water Torbay BERRY HEAD ROAD CSO 0 0 95.2
South West Water Bigbury Bay BIGBURY & CHALLABOROUGH STW 0 0 100
South West Water Challaborough Stream CHALLABOROUGH PSCSO/EO 0 0 100
South West Water Horse Brook Via Sws HEATHER PARK PUMPING STATION 0 0 99.9
South West Water Leonards Cove Stream LEONARDS COVE PS 0 0 100
South West Water Malt Mill Lake Via Sws LOWER COLLAPARK CSO 0 0 100
South West Water English Channel OVERSEAS ESTATE EAST PS 0 0 100
South West Water Combe Stream SOUTH SANDS PS 0 0 99.9
South West Water Stream THE ANCHORAGE CSO 0 0 100
South West Water Bigbury Bay THE WARREN PUMPING STATION 0 0 100
South West Water Kingsbridge Estuary WEST ALVINGTON CSO 0 0 100
South West Water Kingsbridge Estuary WESTVILLE/TACKETWOOD PS 0 0 99.9
South West Water Dart Estuary YARROW BANK PUMPING STATION 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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