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Mid Dorset and North Poole

Polluted by sewage 273 times in 2025 lasting 1,461 hours

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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 Mid Dorset and North Poole in 2026

So far this year (as of 18 May 2026, 12:00) there has been 3,989 hours of sewage overflows, from 65 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s

Totals for Mid Dorset and North Poole in 2025

23 Sites polluted by Wessex Water
273 sewage dumps
1,461 hours duration
That's 2.03 months. 5.2 times a week, on average

Change Over Time

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Constituencies near Mid Dorset and North Poole

Waterways in Mid Dorset and North Poole

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Pollution Summary 2025

Here are all the reported sewage overflow totals for Mid Dorset and North Poole 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 Sherford River BULBURY LANE PUMPING STATION 49 467 100
Wessex Water River Stour CORFE MULLEN WWTW 30 226 99.9
Wessex Water River Stour WIMBORNE STW 22 165 100
Wessex Water Lytchett Bay LYTCHETT MINSTER STW 13 162 100
Wessex Water River Frome KINGS ARMS PS, STOBOROUGH 22 95 100
Wessex Water Uddens Water HOLT SEWAGE TREATMENT WORKS 10 53 100
Wessex Water Lytchett Bay MOORLAND WAY PUMPING STATION 17 49 100
Wessex Water Rushcombe Stream RUSHCOMBE BOTTOM PUMPING STATION 17 41 99.9
Wessex Water Freshwater WOOD LANE PS 13 38 100
Wessex Water River Stour PARDY'S HILL PS 8 23 100
Wessex Water Uddens Water GAUNTS COMMON STW 8 19 99.9
Wessex Water Tidal River Piddle WAREHAM WASTEWATER TREATMENT WORKS 7 18 100
Wessex Water Uddens Water PILFORD HEATH PUMPING STATION 14 17 100
Wessex Water River Frome SOUTH EAST PUMPING STATION 10 16 100
Wessex Water Poole Harbour HOLTON HEATH WW PUMPING STATION 6 14 100
Wessex Water River Stour CANFORD MAIN PUMPING STATION 4 12 100
Wessex Water River Stour FAIRVIEW PUMPING STATION 4 9 100
Wessex Water River Frome STOBOROUGH RIDGE PUMPING STATION 3 8 99.9
Wessex Water River Frome WAREHAM COMBINED SEWER OVERFLOW 6 7 100
Wessex Water River Stour BROOK ROAD PUMPING STATION 2 6 100
Wessex Water Lytchett Bay SANDY LANE PS 6 5 99.8
Wessex Water River Piddle SANDFORD LANE PUMPING STATION 1 0 100
Wessex Water Sherford River GLEBE ROAD PUMPING STATION 1 0 88.3
Wessex Water Sherford River BLACKHEATH WWTW 0 0 100
Wessex Water Hatch Pond Stream CANFORD HEATH PUMPING STATION 0 0 99.8
Wessex Water Sherford River COCK AND BOTTLE PUMPING STATION 0 0 96.7
Wessex Water River Allen POOLE ROAD PUMPING STATION 0 0 100
Wessex Water Knighton Stream PUMPING STATION AT MAGNA ROAD 0 0 100
Wessex Water River Piddle WEST MILL CRESCENT 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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