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Blyth and Ashington - 2025 Sewage

Polluted by sewage 4,542 hours in 2025 , monitoring offline 14,981 hours , potential overflows 200 hours

© OpenStreetMap contributors
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 Blyth and Ashington 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 Blyth and Ashington

Daily Data

Jan - 872 hours , 192 potential
Feb - 7 hours , 114 offline
Mar - 14 hours , 388 offline
Apr - 1 hours , 397 offline
May - 34 hours , 1,537 offline
Jun - 66 hours , 2,051 offline
Jul - 212 hours , 1,590 offline
Aug - 16 hours , 1,191 offline
Sept - 377 hours , 1,531 offline
Oct - 323 hours , 1,291 offline
Nov - 1,524 hours , 4,582 offline
Dec - 1,091 hours , 8 potential
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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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
Northumbrian Water BLYTH NO 5 SPS River Blyth 32 534h 53m -
Northumbrian Water Unknown Unknown 42 367h 25m -
Northumbrian Water NEWBIGGIN SEWAGE TREATMENT WORKS North Sea 27 270h 41m -
Northumbrian Water CAMBOIS SEWAGE TREATMENT WORKS North Sea 26 260h 8m -
Northumbrian Water NEWBIGGIN SEWAGE TREATMENT WORKS North Sea 22 248h 46m -
Northumbrian Water BLYTH (NEW) SEWAGE TREATMENT WORKS River Blyth 18 221h 10m -
Northumbrian Water Unknown Unknown 16 186h 56m 22 h
Northumbrian Water Unknown Unknown 46 183h 32m 119 h
Northumbrian Water CRAMLINGTON SEWAGE TREATMENT WORKS River Blyth 19 163h 2m -
Northumbrian Water Unknown Unknown 42 162h 11m -
Northumbrian Water WEST SLEEKBURN FARM CSO Sleek Burn 16 156h 4m -
Northumbrian Water Unknown Unknown 19 124h 56m 7 h
Northumbrian Water NORTH BLYTH SPS River Blyth 17 111h 38m -
Northumbrian Water Unknown Unknown 27 111h 3m 986 h
Northumbrian Water Unknown Unknown 25 87h 41m -
Northumbrian Water Unknown Unknown 19 85h 36m 49 h
Northumbrian Water Unknown Unknown 15 78h 53m 23 h
Northumbrian Water SEATON NORTH HOTEL CSO (WK013) Rowlington Burn 18 77h 58m -
Northumbrian Water Unknown Unknown 13 73h 55m 430 h
Northumbrian Water ASHINGTON CSO PARK ROAD WK 006 Blackclose Burn 12 71h 40m -
Northumbrian Water WELWYN FACTORY CSO Sleekburn 19 70h 24m -
Northumbrian Water CRAMLINGTON SEWAGE TREATMENT WORKS River Blyth 16 69h 31m -
Northumbrian Water SOUTH BLYTH HARBOUR CSO River Blyth 14 65h 32m -
Northumbrian Water Unknown Unknown 12 60h -
Northumbrian Water SLEEKBURN EAST CSO Sleek Burn 15 58h 52m -
Northumbrian Water Unknown Unknown 12 55h 40m -
Northumbrian Water BATES COLLIERY SPS River Blyth 11 54h 18m -
Northumbrian Water JOHN STREET CSO Blyth Estuary 7 39h 44m 829 h
Northumbrian Water Unknown Unknown 11 39h 10m 913 h
Northumbrian Water Unknown Unknown 5 36h 45m 926 h
Northumbrian Water Unknown Unknown 7 33h 1m 27 h
Northumbrian Water Unknown Unknown 15 32h 41m 122 h
Northumbrian Water Unknown Unknown 17 32h 10m 8 h
Northumbrian Water Unknown Unknown 14 28h 30m 836 h
Northumbrian Water Unknown Unknown 11 25h 10m -
Northumbrian Water Unknown Unknown 11 23h 34m 156 h
Northumbrian Water FRONT STREET CSO CH68 River Blyth 13 21h 42m -
Northumbrian Water Unknown Unknown 15 21h 13m 15 h
Northumbrian Water Unknown Unknown 11 19h 28m 22 h
Northumbrian Water Unknown Unknown 9 16h 28m 63 h
Northumbrian Water Unknown Unknown 3 15h 45m 4,592 h
Northumbrian Water Unknown Unknown 15 13h 53m 192 h
Northumbrian Water CLEASEWELL HILL SPS River Wansbeck 14 13h 43m 187 h
Northumbrian Water BANK TOP CSO River Blyth 10 12h 26m -
Northumbrian Water Unknown Unknown 10 11h 10m -
Northumbrian Water GRANGE PARK CSO (WK016) Sleek Burn 7 10h 22m -
Northumbrian Water BEDSIDE CSO Blyth 8 8h 42m -
Northumbrian Water TAYLOR STREET CSO Blyth Estuary 6 7h 2m -
Northumbrian Water LYNDHURST ROAD CSO River Wansbeck 3 6h 54m -
Northumbrian Water Unknown Unknown 9 6h 24m 204 h
Northumbrian Water GLAXO WEST CSO River Wansbeck 4 6h 8m -
Northumbrian Water Unknown Unknown 5 6h 6m 7 h
Northumbrian Water WILLOW BRIDGE CSO Sleek Burn 3 5h 12m -
Northumbrian Water EAST HARTFORD PS Horton Burn 3 5h 8m -
Northumbrian Water Unknown Unknown 5 4h 32m 1,958 h
Northumbrian Water GREEN LANE CSO 9(WK 008) Wansbeck, 3 4h 30m -
Northumbrian Water EAST FORD ROAD SPS Wansbeck Estuary 3 3h 35m -
Northumbrian Water Unknown Unknown 2 3h 22m 7 h
Northumbrian Water Unknown Unknown 7 2h 11m -
Northumbrian Water Unknown Unknown 3 2h 8m -
Northumbrian Water Unknown Unknown 3 1h 54m 21 h
Northumbrian Water Unknown Unknown 1 1h 30m 7 h
Northumbrian Water Unknown Unknown 1 1h 18m 10 h
Northumbrian Water ASHINGTON DRIVE CSO HLF MOON RNDBWT Wansbeck Estuary 2 1h 8m -
Northumbrian Water Unknown Unknown 3 1h 2m -
Northumbrian Water Unknown Unknown 4 1h 1m 128 h
Northumbrian Water Unknown Unknown 4 0h 54m 882 h
Northumbrian Water Unknown Unknown 4 0h 36m 21 h
Northumbrian Water Unknown Unknown 2 0h 24m 7 h
Northumbrian Water Unknown Unknown 3 0h 22m 513 h
Northumbrian Water Unknown Unknown 1 0h 20m -
Northumbrian Water Unknown Unknown 1 0h 18m 23 h
Northumbrian Water Unknown Unknown 1 0h 8m -
Northumbrian Water Unknown Unknown 1 0h 6m -
Northumbrian Water Unknown Unknown 0 0h 346 h
Northumbrian Water 20 WANSBECK STREET Wansbeck Estuary 0 0h -
Northumbrian Water NEWBIGGIN SSO (WILKIE TERRACE) North Sea 0 0h -
Northumbrian Water BEVAN HOUSE Blyth Estuary 0 0h -
Northumbrian Water Unknown Unknown 0 0h 159 h
Northumbrian Water NORTH CAMBOIS PUMPING STATION North Sea 0 0h -
Northumbrian Water COWPEN ROAD CSO River Blyth 0 0h -
Northumbrian Water RIDLEY STREET SPS River Blyth 0 0h -
Northumbrian Water Unknown Unknown 0 0h 31 h
Northumbrian Water NORTH SEATON LEVEL CROSSING CSO River Wansbeck 0 0h -
Northumbrian Water MILLFIELD CSO Blyth, 0 0h -
Northumbrian Water BOTHAL COTTAGES R Wansbeck 0 0h -
Northumbrian Water WARSDELL STREET PUMPING STATION Blyth Saline Estuary 0 0h -
Northumbrian Water PARK ROAD & GREEN LANE CSO Wansbeck, 0 0h -
Northumbrian Water SOLINGEN ESTATE CSO River Blyth 0 0h -
Northumbrian Water BRIARDALE ROAD CSO Blyth Estuary 0 0h -
Northumbrian Water SOUTH GREEN LANE CSO Blackclose Dene 0 0h -
Northumbrian Water NEDDERTON CSO Green Letch 0 0h 313 h
Northumbrian Water BOTHAL CSO THE TUNNELS CM036 Bothal Burn 0 0h -
Northumbrian Water HUGHBOURNE STREET CSO River Blyth 0 0h -
Northumbrian Water BRIARDALE CSO Unnamed Sleek Burn 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

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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