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.

Totals for Mid Dorset and North Poole in 2025

Sewage2,130 hours
Monitoring offline709 hours
Potential pollution0 hours
Storm overflows65

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

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

Annual figures up to and including 2025 come from official water company returns. The 2026 figure is our own estimate, derived continuously from the companies' live data feeds.

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.