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March for Clean Water

South Dorset was polluted by sewage 1,007 times in 2023
lasting 3,214 hours

Select the constituency from the drop-down

Constituency

✔ means we have experimental daily data since 2023

Totals for South Dorset in 2023

54 Sites polluted by Wessex Water

1,007 sewage dumps
3,214 h duration

That's 4.46 months. On average 2.8 times a day

Change Over Time

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Your local MP is Lloyd Hatton (Labour) - Find out more about their interests, donors, and voting at They Work For You

Constituencies near South Dorset

Waterways in South Dorset

Pollution Summary 2023

Here are all the reported sewage overflow totals for South Dorset in 2023. 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 65 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 %
Wessex Water	Corfe River	CORFE CASTLE STW	60	631	98.5
Wessex Water	Unknown	WEYMOUTH SEWAGE TREATMENT WORKS	90	424	95.4
Wessex Water	River Frome	MORRIS ROAD PUMPING STATION	46	296	99.8
Wessex Water	River Frome	STATION ROAD CSO	36	252	100
Wessex Water	Corfe River	GLEBE FARM PUMPING STATION	34	200	100
Wessex Water	Swanage Bay	SWANAGE TUNNEL	44	175	99.3
Wessex Water	Stream At Winspit Botttom	WORTH MATRAVERS WWTW	36	116	99.9
Wessex Water	Corfe River	CHURCH KNOWLE ANIMAL SANCTUARY PS	27	114	100
Wessex Water	River Win	EAST CHALDON PUMPING STATION	12	89	100
Wessex Water	River Win	BLACKNOLL	22	73	100
Wessex Water	Unnamed Stream To Durlston Bay	DURLSTON ROAD PS	43	66	100
Wessex Water	Unnamed Stream	HARMAN'S CROSS PUMPING STATION	13	65	99.9
Wessex Water	River Piddle	BRIANTSPUDDLE SEWAGE	9	58	100
Wessex Water	River Frome	RAILWAY COTTAGES PUMPING STATION	38	51	100
Wessex Water	Ulwell Stream	NEW SWANAGE ATTENUATION TANK	18	47	99.9
Wessex Water	Weymouth Harbour Via Sws	RODWELL AVENUE CSO	55	45	99.9
Wessex Water	Corfe River	RED LANE PUMPING STATION	14	42	100
Wessex Water	English Channel	OSMINGTON BAY HOLIDAY CENTRE PS	17	39	100
Wessex Water	River Frome	LYTCHETT LANE PUMPING STATION	11	39	100
Wessex Water	Radipole Lake	ROMAN ROAD COMBINED SEWER OVERFLOW	48	37	100
Wessex Water	River Wey	CHAFEY'S LAKE CSO	12	29	99.8
Wessex Water	Little Sea	WADMORE LANE PUMPING STATION	12	27	100
Wessex Water	Corfe River	STUDLAND ROAD PUMPING STATION	20	25	100
Wessex Water	Weymouth Harbour	THE MARSH COMBINED SEWER OVERFLOW	9	24	96.1
Wessex Water	Weymouth Harbour	ADMIRAL HARDY CSO	8	24	99.8
Wessex Water	River Frome	DUNCAN CRESCENT PUMPING STATION	15	23	100
Wessex Water	Freshwater Bay	SOUTHWELL PS	19	23	100
Wessex Water	English Channel	WEST LULWORTH PUMPING STATION	8	21	100
Wessex Water	Unnamed Stream	RINGSTEAD STW	3	16	96.7
Wessex Water	Weymouth Harbour	CHICKERELL ROAD CSO	41	14	100
Wessex Water	River Win	EAST BURTON CROSS ROAD PS	2	13	100
Wessex Water	River Frome	BOVINGTON TERMINAL PUMPING STATION	3	12	100
Wessex Water	Portland Harbour	REAR DONCASTER ROAD	11	8	99.9
Wessex Water	To Studland Bay	WATERY LANE PUMPING STATION	1	8	100
Wessex Water	Groundwater Via Infilt System	WESTON STREET COMBINED SEWER OF	12	7	97.3
Wessex Water	River Swan	HERSTON CROSS ATTENUATION TANK CSO	5	7	87.7
Wessex Water	English Channel	PORTLAND BILL STORM OVERFLOW	8	6	98.2
Wessex Water	River Wey	FAIRFIELD SEWAGE PUMPING STATION	4	6	100
Wessex Water	Weymouth Bay	MELCOMBE AVENUE CSO	14	6	95.1
Wessex Water	Studland Bay	COOMBE PUMPING STATION	8	6	99.9
Wessex Water	Weymouth Harbour	CHICKERELL BOYS CLUB CSO	22	5	99.5
Wessex Water	West Bay	HIGH STREET CSO	31	4	99.9
Wessex Water	Portland Harbour	CASTLE COVE PUMPING STATION	5	4	100
Wessex Water	Portland Harbour	VICTORIA SQUARE PORTLAND	12	3	100
Wessex Water	English Channel	LULWORTH BEACH PUMPING STATION	11	2	93
Wessex Water	Radipole Lake Via Sws	CORONATION CRESCENT CSO	11	2	100
Wessex Water	Weymouth Harbour	WESTON ROAD CSO	3	2	99.9
Wessex Water	Radipole Lake	GRASMERE ROAD CSO	3	1	99.9
Wessex Water	Portland Harbour	HILLCREST ROAD PUMPIMG STATION	4	1	95
Wessex Water	Weymouth Harbour Via Sws	MARLOW ROAD COMBINED SEWER OVERFLOW	3	0	100
Wessex Water	Weymouth Harbour	LONGCROFT ROAD CSO	7	0	57.3
Wessex Water	Lyme Bay	PORTLAND RAILWAY GRAVITY SEWER	2	0	100
Wessex Water	Radipole Lake Via Sws	ULLSWATER CRESCENT CSO	3	0	99.8
Wessex Water	Weymouth Harbour	SPRING ROAD COMBINED SEWER OVERFLOW	2	0	99.5
Wessex Water	River Piddle	AFFPUDDLE PUMPING STATION	0	0	100
Wessex Water	Radipole Lake Via Sws	SPA ROAD COMBINED SEWER OVERFLOW	0	0	100
Wessex Water	Fleet	FERRYBRIDGE PS	0	0	99.9
Wessex Water	Weymouth Bay	CRANFORD AVENUE CSO	0	0	99.9
Wessex Water	Weymouth Harbour	WARDCLIFFE ROAD CSO	0	0	100
Wessex Water	Ground	PENNSYLVANIA ROAD PS	0	0	100
Wessex Water	River Frome	EAST KNIGHTON PUMPING STATION	0	0	100
Wessex Water	Corfe River	HALVES COTTAGE PUMPING STATION	0	0	96.1
Wessex Water	Weymouth Harbour	RADIPOLE LAKE PUMPING STATION	0	0	100
Wessex Water	Weymouth Harbour Via Sws	SPRING LANE CSO	0	0	100
Wessex Water	Weymouth Harbour	NEWSTEAD ROAD 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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