Top of the Poops | Constituency Sewage Map | South Dorset

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Live data for South Dorset in 2026

So far this year (as of 14 Nov 2026, 12:15) there has been 5,783 hours of sewage overflows, from 136 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s

Sewage without rain in South Dorset

On 1 occasion since December 2024, no rain fell anywhere in South Dorset for days — and its CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s discharged anyway.

10 May 2026 1 at once · 0h

Totals for South Dorset in 2025

53 Sites polluted by Wessex Water

630 sewage dumps

1,535 hours duration

Sewage pollution map of South Dorset: 630 spills in 2025, lasting 1,535 hours, by Wessex Water

That's 2.13 months. On average 1.7 times a day

Change Over Time

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Company	Waterway	Site	Sewage Dumps	Duration (Hours)	Reporting %
Wessex Water	Unknown	WEYMOUTH SEWAGE TREATMENT WORKS	65	302	100
Wessex Water	Corfe River	CORFE CASTLE STW	27	192	100
Wessex Water	River Frome	MORRIS ROAD PUMPING STATION	36	187	100
Wessex Water	River Frome	STATION ROAD CSO	23	110	100
Wessex Water	Swanage Bay	SWANAGE TUNNEL	22	76	100
Wessex Water	Corfe River	GLEBE FARM PUMPING STATION	15	75	100
Wessex Water	River Win	EAST CHALDON PUMPING STATION	10	50	99.9
Wessex Water	Unnamed Stream	HARMAN'S CROSS PUMPING STATION	10	45	99.5
Wessex Water	Corfe River	CHURCH KNOWLE ANIMAL SANCTUARY PS	9	36	100
Wessex Water	Weymouth Harbour Via Sws	RODWELL AVENUE CSO	44	33	98.3
Wessex Water	River Wey	CHAFEY'S LAKE CSO	14	32	96.1
Wessex Water	River Frome	LYTCHETT LANE PUMPING STATION	11	30	100
Wessex Water	River Win	EAST BURTON CROSS ROAD PS	6	29	100
Wessex Water	English Channel	OSMINGTON BAY HOLIDAY CENTRE PS	15	27	100
Wessex Water	Radipole Lake	ROMAN ROAD COMBINED SEWER OVERFLOW	38	26	100
Wessex Water	River Win	BLACKNOLL	12	23	100
Wessex Water	Stream At Winspit Botttom	WORTH MATRAVERS WWTW	19	22	100
Wessex Water	River Frome	RAILWAY COTTAGES PUMPING STATION	20	22	100
Wessex Water	Unnamed Stream To Durlston Bay	DURLSTON ROAD PS	20	19	100
Wessex Water	English Channel	WEST LULWORTH PUMPING STATION	8	17	100
Wessex Water	Corfe River	RED LANE PUMPING STATION	6	16	100
Wessex Water	Weymouth Harbour	THE MARSH COMBINED SEWER OVERFLOW	10	15	100
Wessex Water	River Frome	BOVINGTON TERMINAL PUMPING STATION	3	14	100
Wessex Water	Freshwater Bay	SOUTHWELL PS	12	14	100
Wessex Water	Corfe River	STUDLAND ROAD PUMPING STATION	10	11	99.9
Wessex Water	River Swan	HERSTON CROSS ATTENUATION TANK CSO	6	10	100
Wessex Water	Weymouth Harbour	ADMIRAL HARDY CSO	6	9	88.1
Wessex Water	Little Sea	WADMORE LANE PUMPING STATION	4	9	99.8
Wessex Water	Ulwell Stream	NEW SWANAGE ATTENUATION TANK	4	7	100
Wessex Water	River Piddle	BRIANTSPUDDLE SEWAGE	1	6	100
Wessex Water	Groundwater Via Infilt System	WESTON STREET COMBINED SEWER OF	8	6	99.9
Wessex Water	Unnamed Stream	RINGSTEAD STW	1	5	99.9
Wessex Water	Weymouth Bay	CRANFORD AVENUE CSO	17	4	95.9
Wessex Water	Weymouth Harbour	CHICKERELL BOYS CLUB CSO	20	4	95.3
Wessex Water	River Frome	EAST KNIGHTON PUMPING STATION	1	4	100
Wessex Water	River Wey	FAIRFIELD SEWAGE PUMPING STATION	4	4	100
Wessex Water	Studland Bay	COOMBE PUMPING STATION	5	4	100
Wessex Water	Weymouth Bay	MELCOMBE AVENUE CSO	13	4	99.8
Wessex Water	Portland Harbour	REAR DONCASTER ROAD	11	3	99.9
Wessex Water	Radipole Lake Via Sws	CORONATION CRESCENT CSO	14	3	100
Wessex Water	Radipole Lake Via Sws	ULLSWATER CRESCENT CSO	8	1	100
Wessex Water	English Channel	LULWORTH BEACH PUMPING STATION	7	1	100
Wessex Water	Weymouth Harbour	CHICKERELL ROAD CSO	6	1	34
Wessex Water	Portland Harbour	VICTORIA SQUARE PORTLAND	5	1	100
Wessex Water	Weymouth Harbour	WESTON ROAD CSO	3	0	100
Wessex Water	Lyme Bay	PORTLAND RAILWAY GRAVITY SEWER	7	0	90
Wessex Water	Portland Harbour	CASTLE COVE PUMPING STATION	2	0	100
Wessex Water	Portland Harbour	HILLCREST ROAD PUMPIMG STATION	1	0	100
Wessex Water	Weymouth Harbour	NEWSTEAD ROAD PUMPING STATION	1	0	100
Wessex Water	West Bay	HIGH STREET CSO	5	0	100
Wessex Water	Weymouth Harbour	LONGCROFT ROAD CSO	1	0	61.6
Wessex Water	English Channel	PORTLAND BILL STORM OVERFLOW	3	0	100
Wessex Water	Weymouth Harbour	WARDCLIFFE ROAD CSO	1	0	100
Wessex Water	River Piddle	AFFPUDDLE PUMPING STATION	0	0	100
Wessex Water	River Frome	DUNCAN CRESCENT PUMPING STATION	0	0	100
Wessex Water	Fleet	FERRYBRIDGE PS	0	0	100
Wessex Water	Radipole Lake	GRASMERE ROAD CSO	0	0	100
Wessex Water	Corfe River	HALVES COTTAGE PUMPING STATION	0	0	100
Wessex Water	Weymouth Harbour Via Sws	MARLOW ROAD COMBINED SEWER OVERFLOW	0	0	100
Wessex Water	Ground	PENNSYLVANIA ROAD PS	0	0	100
Wessex Water	Weymouth Harbour	RADIPOLE LAKE PUMPING STATION	0	0	100
Wessex Water	Radipole Lake Via Sws	SPA ROAD COMBINED SEWER OVERFLOW	0	0	100
Wessex Water	Weymouth Harbour Via Sws	SPRING LANE CSO	0	0	99.5
Wessex Water	Weymouth Harbour	SPRING ROAD COMBINED SEWER OVERFLOW	0	0	100
Wessex Water	To Studland Bay	WATERY LANE PUMPING STATION	0	0	100

South Dorset

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Live data for South Dorset in 2026

Sewage without rain in South Dorset

Totals for South Dorset in 2025

53 Sites polluted by Wessex Water

Change Over Time

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