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North Dorset

Polluted by sewage 1,015 times in 2025 lasting 11,726 hours - That's 1.36 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 North Dorset in 2026

So far this year (as of 18 May 2026, 12:00) there has been 16,078 hours of sewage overflows, from 90 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s - that's 1.86 years!

Totals for North Dorset in 2025

37 Sites polluted by Wessex Water
1,015 sewage dumps
11,726 hours duration
That's 1.36 years. On average 2.8 times a day

Change Over Time

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Waterways in North Dorset

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Pollution Summary 2025

Here are all the reported sewage overflow totals for North Dorset 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 %
Wessex Water River Iwerne IWERNE MINSTER WRC 83 1,816 99.6
Wessex Water River Lydden HAZELBURY BRYAN 79 1,569 99.9
Wessex Water River Stour MARNHULL WASTEWATER TREATMENT WORKS 75 1,365 100
Wessex Water Unknown MAPPOWDER 62 1,002 97.7
Wessex Water River Stour BOURTON WATER RECYCLING CENTRE 62 812 100
Wessex Water Caundle Brook STOURTON CAUNDLE WRC 37 666 100
Wessex Water Stour SHILLINGSTONE STW 45 559 99.8
Wessex Water River Stour STURMINSTER NEWTON WRC 48 419 100
Wessex Water Unknown STALBRIDGE PUMPING STATION 40 399 100
Wessex Water River Crane CRANBORNE SEWAGE TREATMENT WORKS 23 374 100
Wessex Water River Lydden LYDLINCH WATER RECYCLING CENTRE 59 360 99.6
Wessex Water River Stour GILLINGHAM WATER RECYCLING CENTRE 35 318 100
Wessex Water Chivricks Brook SODOM LANE PUMPING STATION 31 268 100
Wessex Water River Lydden KING'S STAG WWTW 28 259 99.9
Wessex Water River Stour BULL INN CSO 19 195 100
Wessex Water River Stour BUCKINGHAM ROAD PUMPING STATION 32 183 100
Wessex Water River Lodden MOTCOMBE ATTENUATION TANK 19 161 100
Wessex Water River Stour MARNHULL SEWAGE TREATMENT WORKS 14 147 100
Wessex Water River Crane POTTERNE WAY PUMPING STATION 34 125 100
Wessex Water Key Brook To R Stour LONG CROSS PUMPING STATION 36 114 99.8
Wessex Water Key Brook STOUR ROW PUMPING STATION 19 110 100
Wessex Water Shreen Water QUEEN STREET CSO 17 96 100
Wessex Water River Stour THE BRIDGE PS 12 89 95.6
Wessex Water Stour TARRANT CRAWFORD STW 8 85 99.6
Wessex Water River Stour WATER LANE PUMPING STATION 6 54 100
Wessex Water Stirchell Brook SHAFTESBURY WRC 28 45 99.95
Wessex Water Unknown EBBLAKE PUMPING STATION 6 39 99.5
Wessex Water Chivericks Brook HINTON ST.MARY WATER RECYCLING 29 24 100
Wessex Water River Stour BRICKYARD LANE PUMPING STATION 4 20 99.9
Wessex Water River Stour CHILD OKEFORD PS 4 15 99.9
Wessex Water Bere Stream MILBORNE ST.ANDREW 2 10 99.9
Wessex Water River Iwerne SHROTON PUMPING STATION 1 4 100
Wessex Water Stirchell Brook HOLLYROOD FARM CSO 12 4 95.2
Wessex Water Fontmell Brook SUTTON WALDRON PUMPING STATION 1 3 100
Wessex Water Fern Brook NEW ROAD CSO 2 0 90.6
Wessex Water River Stour LANGTON ROAD PUMPING STATION 2 0 100
Wessex Water Bere Stream MILBORNE ST ANDREW PS 1 0 99.9
Wessex Water Unknown ACACIA AVENUE PUMPING STATION 0 0 100
Wessex Water River Stour BOURNEMOUTH ROAD PUMPING STATION 0 0 100
Wessex Water River Stour CRAWFORD BRIDGE PUMPING STATION 0 0 100
Wessex Water Cookwell Brook HAYWARDS BRIDGE 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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Analysing sewage pollution by the Water Industry

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