South Devon was polluted by sewage 5,106 times in 2024
lasting 49,847 hours - that's 5.77 years!

Constituency

Select the constituency from the drop-down

✔ means we have experimental daily data since 2023

Live data for South Devon in 2025

So far this year (as of Apr 16, 2025, 5:45 PM) there has been 12,714 hours of sewage overflows - that's 1.47 years!

Totals for South Devon in 2024

91 Sites polluted by South West Water

5,106 sewage dumps
49,847 h duration

That's 5.77 years! On average 14 times a day

Change Over Time

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Constituencies near South Devon

Waterways in South Devon

Daily Data

We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for South Devon, here you can see overflows in red, the darker the red, the more the CSO overflowed that day.

Each CSO has a row, the most recent data is on the right hand side.

Monitoring Online Monitoring Offline Polluting Potentially Polluting Unknown

Daily data is experimental and data is not guaranteed to be accurate. Please inform us of any issue, we will fix.

Pollution Summary 2024

Here are all the reported sewage overflow totals for South Devon in 2024. 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 0 of the total 102 CSO locations had reporting enabled for less than half the year, of which 0 had zero reporting.

Company	Waterway	Site	Sewage Dumps	Duration (Hours)	Reporting %
South West Water	Harbeton Stream	HARBERTON WWTW	233	3,603	99.7
South West Water	Harbourne River	HARBERTONFORD WWTW	166	3,517	93.7
South West Water	Kingston Stream	KINGSTON WWTW	119	2,520	100
South West Water	Start Bay/Slapton Ley	SLAPTON WASTEWATER TREATMENT WORKS	149	2,299	99.9
South West Water	Aller Brook	COMPTON CASTLE CSO	144	2,069	97.3
South West Water	Holy Brook	HOLNE WWTW	144	1,861	98.9
South West Water	River Avon	SOUTH BRENT WWTW	95	1,803	97.5
South West Water	Bidwell Brook	RATTERY WWTW CSO	114	1,768	88.6
South West Water	Galmpton Stream	GALMPTON (HOPE COVE) STW	72	1,581	99.1
South West Water	Dart Estuary	CORNWORTHY WWTW	103	1,574	92.4
South West Water	Holy Brook	SCORRITON STW	132	1,478	99.7
South West Water	Leonards Cove Stream	STOKE FLEMING PUMPING STATION	96	1,474	99.6
South West Water	Start Bay	TORCROSS PUMPING STATION	68	1,248	100
South West Water	Dart Estuary	TOTNES STW	177	1,212	100
South West Water	Bidwell Brook	DARTINGTON B CSO	84	1,202	100
South West Water	Sherford Stream	SHERFORD WASTEWATER TREATMENT WORKS	96	1,194	99.9
South West Water	River Dart Estuary	SCOUT HUT CSO	77	1,120	98.2
South West Water	Unnamed Coastal Stream	EAST PRAWLE STW	107	1,060	100
South West Water	Charleton Stream	WEST CHARLETON STW	73	1,003	100
South West Water	Unknown	MORELEIGH STW	123	982	100
South West Water	Blackawton Stream	BLACKAWTON SEWAGE TREATMENT WORKS	54	840	88.8
South West Water	South Milton Stream	SOUTH MILTON STW	50	819	98.3
South West Water	River Dart Estuary	STOKE GABRIEL PSCSO/EO	55	773	99.8
South West Water	Ayleston Brook	MODBURY WASTEWATER TREATMENT WORKS	86	702	100
South West Water	Salcombe Estuary	EAST PORTLEMOUTH WWTW	50	679	99.4
South West Water	Start Bay, English Channel	STRETE WWTW	68	630	100
South West Water	Kingsbridge Estuary	PRINCE OF WALES ROAD CSO	68	615	100
South West Water	Frogmore Creek	EAST CHARLETON PUMPING STATION	28	591	100
South West Water	Shilston Brook	BROWNSTON STW	49	590	61.6
South West Water	Ringmore Stream	RINGMORE STW	37	575	92.5
South West Water	Bidwell Brook	TEXTILE MILL	77	572	94
South West Water	Small Brook	EAST ALLINGTON WWTW	47	569	100
South West Water	Ayleston Brook	POUNDWELL MEADOW CSO	38	566	100
South West Water	River Avon	DIPTFORD SEWAGE TREATMENT WORKS	143	493	99.8
South West Water	Kingsbridge Estuary	BRIDGE STREET QUAY CSO	82	475	100
South West Water	River Dart Estuary	DITTISHAM WWTW	68	434	100
South West Water	Chillington Stream	CHILLINGTON & FROGMORE STW	44	420	100
South West Water	River Dart	STAVERTON WWTW	34	365	100
South West Water	Bidwell Brook	DARTINGTON C CSO	39	320	95.4
South West Water	Blanksmill Creek	MALBOROUGH EJECTOR PS	45	281	100
South West Water	Shadycombe Creek	COMMINUTOR HOUSE CSO	109	250	100
South West Water	Old Mill Creek Via Sws	TOWNSTAL TANK CSO	36	248	100
South West Water	River Dart	TOTNES TOWN PUMPING STATION	105	219	97.9
South West Water	River Dart Via Sws	SMITH STREET CSO	94	202	100
South West Water	Yalberton Stream Via Sws	TOR PARK ROAD PUMPING STATION	30	200	100
South West Water	Aller Brook	COMPTON AND MARLDON WWTW	38	184	97
South West Water	Shadycombe Creek	SHADYCOMBE LOWER TUNNEL	23	170	100
South West Water	River Harbourne	ASHPRINGTON WWTW	41	162	99.5
South West Water	Dart River Estuary	MAYORS AVENUE PUMPING STATION	74	157	100
South West Water	River Dart Estuary	FERRY BOAT INN PUMPING STATION	66	157	100
South West Water	Stream	KIMBERLEY NURSERIES CSO	87	157	98.8
South West Water	River Avon	BRENT MILL CSO	56	157	97.8
South West Water	Avon River Estuary	AVETON GIFFORD STW	12	150	99.8
South West Water	Dart Estuary	YARROW BANK PUMPING STATION	8	130	95.2
South West Water	Higher Brixham Stream	EDEN PARK CSO	34	128	100
South West Water	River Dart Estuary	STEAMER QUAY BRIDGETOWN CSO	43	114	100
South West Water	English Channel	BOLTON STREET CSO	59	114	100
South West Water	Dittisham Mill Creek-Estuarine	MILL CREEK PUMPING STATION	32	112	100
South West Water	Bidwell Brook	SHINNER'S BRIDGE CSO	37	96	100
South West Water	River Avon	LODDISWELL WWTW	23	91	100
South West Water	River Dart	LOWER FERRY PUMPING STATION	52	84	98.5
South West Water	River Dart Estuary	SWALLOWFIELDS CSO	30	69	97.1
South West Water	Brixham Outer Harbour	OXEN COVE ATTENUATION TANK CSO	34	68	91.5
South West Water	Kirkham Stream	MARLDON (CHURSCOMBE CROSS) PS	29	62	100
South West Water	Hope Cove	OUTER HOPE PUMPING STATION	22	58	100
South West Water	Baston Creek	BATSON GREEN PUMPING STATION	24	53	100
South West Water	River Dart Estuary	WARFLEET CREEK PUMPING STATION	7	51	100
South West Water	Galmpton Stream	GALMPTON PUMPING STATION	32	40	99.9
South West Water	River Dart	31 FORE STREET CSO	46	37	97.8
South West Water	Frogmore Stream	HOME CLOSE PUMPING STATION	2	22	100
South West Water	Gatcombe Brook	FURZEGOOD PUMPING STATION	27	22	100
South West Water	Malt Mill Lake	QUARRY CLOSE CSO	11	21	92.5
South West Water	English Channel	OVERSEAS ESTATE WEST PS	18	16	100
South West Water	Combe Stream	QUILLETTS CSO	33	16	100
South West Water	Kingsbridge Estuary	SOUTHVILLE EMBANKMENT PS	9	14	100
South West Water	River Dart	DARTHAVEN MARINA PUMPING STATION	49	13	100
South West Water	Batson Creek	SHADYCOMBE LOWER TUNNEL	12	12	100
South West Water	Frogmore Creek	CHILLINGTON COMBINED SEWER OVERFLOW	22	12	97
South West Water	River Dart Estuary Via Sws	ST KATHERINE'S WAY CSO	21	10	97.5
South West Water	Blackawton Stream	FIELD ADJ COUNCIL HOUSES CSO	17	10	56.1
South West Water	Kingsbridge Estuary	WEST ALVINGTON CSO	21	8	98.7
South West Water	Dart Estuary	PRIORY SLIP PUMPING STATION	9	7	78.4
South West Water	Hope Cove	INNER HOPE PSCSO/EO	5	6	100
South West Water	Malt Mill Lake Via Sw Sewer	ST JOHNS TERRACE CSO	18	5	94.2
South West Water	Combe Stream	MALBOROUGH VILLAGE PUMPING STATION	4	5	100
South West Water	Slapton Ley	STOKENHAM CARAVAN PARK CSO	3	2	27.4
South West Water	Combe Stream	SOUTH SANDS PS	3	1	100
South West Water	Kingsbridge Estuary	NORTH SANDS PUMPING STATION	2	0	97.1
South West Water	River Wash	TUCKENHAY BRIDGE PS	1	0	98.2
South West Water	Malt Mill Lake Via Sws	LOWER COLLAPARK CSO	1	0	89
South West Water	Stream	SOUTH MILTON CSO	1	0	92.5
South West Water	Challaborough Stream	CHALLABOROUGH PSCSO/EO	0	0	99.1
South West Water	Stream	THE ANCHORAGE CSO	0	0	100
South West Water	English Channel	APPLETREE CSO	0	0	100
South West Water	Kingsbridge Estuary	WESTVILLE/TACKETWOOD PS	0	0	99
South West Water	Aller Brook	LOVE LANE COMBINED SEWER OVERFLOW	0	0	100
South West Water	Horse Brook Via Sws	HEATHER PARK PUMPING STATION	0	0	100
South West Water	Torbay	BERRY HEAD ROAD CSO	0	0	100
South West Water	English Channel	OVERSEAS ESTATE EAST PS	0	0	100
South West Water	Leonards Cove Stream	LEONARDS COVE PS	0	0	100
South West Water	Bigbury Bay	BIGBURY & CHALLABOROUGH STW	0	0	100
South West Water	Bigbury Bay	THE WARREN 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. This 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.

Analysing sewage pollution by the Water Industry

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