North Dorset

Polluted by sewage 2,067 times in 2024 lasting 26,386 hours - That's 3.05 years!

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✔ means we have experimental daily data since 2023

Live data for North Dorset in 2025

So far this year (as of May 8, 2025, 1:00 PM) there has been 7,366 hours of sewage overflows - that's 0.85 years!

Totals for North Dorset in 2024

37 Sites polluted by Wessex Water

2,067 sewage dumps

26,386 hours duration

That's 3.05 years! On average 5.7 times a day

Change Over Time

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Constituencies near North Dorset

Waterways in North Dorset

Daily Data

We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for North Dorset, 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.

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Pollution Summary 2024

Here are all the reported sewage overflow totals for North Dorset 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 all the declared CSOs appeared to have monitoring enabled for more than 50% of the year

Company	Waterway	Site	Sewage Dumps	Duration (Hours)	Reporting %
Wessex Water	River Iwerne	IWERNE MINSTER WRC	167	3,647	99.9
Wessex Water	River Stour	BOURTON WATER RECYCLING CENTRE	180	2,913	100
Wessex Water	River Lydden	HAZELBURY BRYAN	130	2,523	100
Wessex Water	River Stour	MARNHULL WASTEWATER TREATMENT WORKS	134	2,464	99.9
Wessex Water	Unknown	MAPPOWDER	103	2,088	96.6
Wessex Water	River Crane	CRANBORNE SEWAGE TREATMENT WORKS	116	2,017	98.5
Wessex Water	Stour	SHILLINGSTONE STW	119	1,675	99.8
Wessex Water	Caundle Brook	STOURTON CAUNDLE WRC	72	1,134	99.9
Wessex Water	Bere Stream	MILBORNE ST.ANDREW	45	852	100
Wessex Water	River Stour	GILLINGHAM WATER RECYCLING CENTRE	76	672	99.5
Wessex Water	River Stour	STURMINSTER NEWTON WRC	74	614	100
Wessex Water	Unknown	STALBRIDGE PUMPING STATION	60	585	99.3
Wessex Water	River Lydden	LYDLINCH WATER RECYCLING CENTRE	82	571	99.8
Wessex Water	Chivricks Brook	SODOM LANE PUMPING STATION	55	520	100
Wessex Water	River Iwerne	SHROTON PUMPING STATION	30	485	100
Wessex Water	Stour	TARRANT CRAWFORD STW	30	424	99.8
Wessex Water	River Crane	POTTERNE WAY PUMPING STATION	64	389	100
Wessex Water	River Lydden	KING'S STAG WWTW	39	383	99.9
Wessex Water	River Stour	BUCKINGHAM ROAD PUMPING STATION	60	368	100
Wessex Water	River Stour	BULL INN CSO	34	297	99.5
Wessex Water	River Lodden	MOTCOMBE ATTENUATION TANK	32	292	99.9
Wessex Water	River Stour	WATER LANE PUMPING STATION	43	285	100
Wessex Water	Key Brook To R Stour	LONG CROSS PUMPING STATION	66	243	99.9
Wessex Water	Unknown	EBBLAKE PUMPING STATION	24	240	100
Wessex Water	River Stour	THE BRIDGE PS	24	157	99.5
Wessex Water	Key Brook	STOUR ROW PUMPING STATION	16	121	99.9
Wessex Water	River Stour	MARNHULL SEWAGE TREATMENT WORKS	16	118	100
Wessex Water	Shreen Water	QUEEN STREET CSO	26	114	90.2
Wessex Water	Stirchell Brook	SHAFTESBURY WRC	52	99	99.55
Wessex Water	Chivericks Brook	HINTON ST.MARY WATER RECYCLING	53	26	97.8
Wessex Water	River Stour	CHILD OKEFORD PS	5	14	100
Wessex Water	Stirchell Brook	HOLLYROOD FARM CSO	23	14	82
Wessex Water	River Stour	BRICKYARD LANE PUMPING STATION	2	10	100
Wessex Water	River Stour	LANGTON ROAD PUMPING STATION	5	8	100
Wessex Water	Fontmell Brook	SUTTON WALDRON PUMPING STATION	5	6	99.8
Wessex Water	River Stour	BOURNEMOUTH ROAD PUMPING STATION	1	0	100
Wessex Water	Fern Brook	NEW ROAD CSO	4	0	85.6
Wessex Water	Bere Stream	MILBORNE ST ANDREW PS	0	0	100
Wessex Water	Cookwell Brook	HAYWARDS BRIDGE PUMPING STATION	0	0	100
Wessex Water	River Stour	CRAWFORD BRIDGE PUMPING STATION	0	0	99.9
Wessex Water	Unknown	ACACIA AVENUE PUMPING STATION	0	0	96.6

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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North Dorset Polluted by sewage 2,067 times in 2024 lasting 26,386 hours - That's 3.05 years!

North Dorset