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Mid Dorset and North Poole - 2025 Sewage

Polluted by sewage 2,130 hours in 2025 , monitoring offline 709 hours

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Contains OS Data © Crown copyright & database right 2021-2024
© Top of the Poops 2021-2024

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View Annual Sewage Data

You're looking at the totals that we have calculated for sewage in Mid Dorset and North Poole for 2025. It is an estimate, based on very poor quality live data from the Water Companies. This may not align with the 'official' reported sewage values from the water companies, which is reported in April following then end of the year - so 2025 numbers are reported in April 2026.

What's a potential overflow? If the CSO goes 'Offline' while its Overflowing, we don't know if it stopped overflowing until we get a 'Stop' event.

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Constituencies near Mid Dorset and North Poole

Daily Data

Jan - 807 hours , 8 offline
Feb - 278 hours , 335 offline
Mar - 0 hours , 2 offline
Apr - 1 hours , 162 offline
May - 0 hours , 37 offline
Jun - 28 hours , 8 offline
Jul - 0 hours , 3 offline
Aug - 22 hours
Sept - 41 hours , 131 offline
Oct - 65 hours , 7 offline
Nov - 64 hours , 10 offline
Dec - 817 hours , 2 offline
Daily data is experimental and data is not guaranteed to be accurate. Please inform us of any issue, we will fix.
Please note: We don't have rainfall data for Wales. If you know where to source it please let us know!
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Thank you so much to everyone who contributed to the site in 2025 to keep it running. We do rely on your contributions! Developing and running a website costs real money.
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
Wessex Water Unknown Unknown 23 420 h 46m 0 h
Wessex Water LYTCHETT MATRAVERS BULBURY LANE Sherford River 22 257 h 42m -
Wessex Water LYTCHETT MATRAVERS BULBURY LANE Sherford River 30 215 h 21m -
Wessex Water CORFE MULLEN DORCHESTER ROAD STORM TANK River Stour 14 126 h 28m -
Wessex Water CORFE MULLEN DORCHESTER ROAD STORM TANK River Stour 14 116 h 18m -
Wessex Water WIMBORNE BROOK ROAD STORM TANK River Stour 10 115 h 18m -
Wessex Water LYTCHETT MINSTER LYTCHETT BAY STORM TANK Lytchett Bay 9 106 h 56m -
Wessex Water GAUNTS COMMON STORM TANK Uddens Water 7 91 h 29m -
Wessex Water WIMBORNE BROOK ROAD STORM TANK River Stour 10 83 h 26m -
Wessex Water LYTCHETT MINSTER LYTCHETT BAY STORM TANK Lytchett Bay 6 56 h 37m -
Wessex Water HOLT POND HEAD STORM TANK Uddens Water 5 53 h 36m -
Wessex Water STOBOROUGH KINGS ARMS River Frome 14 50 h 28m -
Wessex Water WIMBORNE HAYES LANE COLEHILL River Stour 10 49 h 56m -
Wessex Water STOBOROUGH KINGS ARMS River Frome 8 40 h 58m -
Wessex Water WIMBORNE HAYES LANE COLEHILL River Stour 18 40 h 41m -
Wessex Water CORFE MULLEN RUSHCOMBE BOTTOM Rushcombe Stream 16 27 h 21m 0 h
Wessex Water POOLE WOOD LANE Freshwater 11 22 h 54m -
Wessex Water Unknown Unknown 5 20 h 19m -
Wessex Water CORFE MULLEN RUSHCOMBE BOTTOM Rushcombe Stream 4 19 h 50m -
Wessex Water UPTON MOORLANDS WAY Lytchett Bay 10 18 h 41m -
Wessex Water UPTON MOORLANDS WAY Lytchett Bay 7 18 h 2m -
Wessex Water HOLT POND HEAD STORM TANK Uddens Water 2 17 h -
Wessex Water CORFE MULLEN PARDYS HILL River Stour 3 13 h 39m -
Wessex Water GAUNTS COMMON STORM TANK Uddens Water 3 11 h 58m -
Wessex Water CANFORD MAGNA CANFORD MAIN River Stour 3 11 h 46m -
Wessex Water WAREHAM SOUTH EAST River Frome 10 11 h 37m -
Wessex Water WAREHAM KEYSWORTH DRIVE STORM TANK Tidal River Piddle 8 11 h 3m -
Wessex Water CORFE MULLEN PARDYS HILL River Stour 5 10 h 22m -
Wessex Water WIMBORNE PILFORD HEATH Uddens Water 9 9 h 52m -
Wessex Water POOLE WOOD LANE Freshwater 3 8 h 47m -
Wessex Water WIMBORNE PILFORD HEATH Uddens Water 3 8 h 32m -
Wessex Water STOBOROUGH RIDGE River Frome 3 8 h 16m -
Wessex Water WAREHAM KEYSWORTH DRIVE STORM TANK Tidal River Piddle 1 7 h 24m -
Wessex Water POOLE FAIRVIEW ROAD River Stour 1 6 h 22m -
Wessex Water HOLTON HEATH HOLTON HEATH SEWAGE PUMPING STATION Poole Harbour 1 6 h 22m -
Wessex Water WIMBORNE BROOK ROAD NO X River Stour 1 5 h 52m -
Wessex Water WAREHAM SOUTH EAST River Frome 1 5 h 10m -
Wessex Water HOLTON HEATH HOLTON HEATH SEWAGE PUMPING STATION Poole Harbour 4 4 h 54m 21 h
Wessex Water WAREHAM ABBOTTS QUAY River Frome 1 4 h 4m -
Wessex Water WAREHAM NORTH BRIDGE Unknown 1 3 h 43m -
Wessex Water WAREHAM ABBOTTS QUAY River Frome 5 3 h 34m -
Wessex Water POOLE FAIRVIEW ROAD River Stour 4 3 h 10m -
Wessex Water UPTON FRENCHS FARM Sherford River 2 1 h 20m -
Wessex Water CANFORD MAGNA CANFORD MAIN River Stour 1 0 h 45m -
Wessex Water WAREHAM SANDFORD LANE River Piddle 1 0 h 42m 21 h
Wessex Water WIMBORNE BROOK ROAD NO X River Stour 1 0 h 40m -
Wessex Water Unknown Unknown 0 0 h 14 h
Wessex Water POOLE MAGNA ROAD Knighton Stream 0 0 h -
Wessex Water POOLE CANFORD HEATH ROAD Hatch Pond Stream 0 0 h 12 h
Wessex Water POOLE CANFORD HEATH ROAD Hatch Pond Stream 0 0 h 4 h
Wessex Water Unknown Unknown 0 0 h 17 h
Wessex Water MORDEN COCK AND BOTTLE Sherford River 0 0 h 0 h
Wessex Water WAREHAM WEST MILL CRESCENT River Piddle 0 0 h 6 h
Wessex Water LYTCHETT MATRAVERS GLEBE ROAD Sherford River 0 0 h 2 h
Wessex Water STOBOROUGH RIDGE River Frome 0 0 h -
Wessex Water WAREHAM NORTH BRIDGE Unknown 0 0 h 105 h
Wessex Water POOLE MAGNA ROAD Knighton Stream 0 0 h -
Wessex Water BLACKHEATH STORM TANK Sherford River 0 0 h 163 h
Wessex Water WIMBORNE POOLE ROAD River Allen 0 0 h -
Wessex Water LYTCHETT MATRAVERS GLEBE ROAD Sherford River 0 0 h 338 h
Wessex Water WAREHAM SANDFORD LANE River Piddle 0 0 h -
Wessex Water WIMBORNE POOLE ROAD River Allen 0 0 h -
Wessex Water BLACKHEATH STORM TANK Sherford River 0 0 h -
Wessex Water WAREHAM WEST MILL CRESCENT River Piddle 0 0 h -

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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