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Blyth and Ashington - 2025 Sewage

Polluted by sewage 4,542 hours in 2025 , monitoring offline 20,330 hours , potential overflows 200 hours

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

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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 , 1,726 offline
Jun - 66 hours , 2,771 offline
Jul - 212 hours , 2,334 offline
Aug - 16 hours , 1,935 offline
Sept - 377 hours , 2,251 offline
Oct - 323 hours , 2,035 offline
Nov - 1,524 hours , 5,302 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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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
Northumbrian Water BLYTH NO 5 SPS River Blyth 32 534 h 53m -
Northumbrian Water Unknown Unknown 42 367 h 25m -
Northumbrian Water NEWBIGGIN SEWAGE TREATMENT WORKS North Sea 27 270 h 41m -
Northumbrian Water CAMBOIS SEWAGE TREATMENT WORKS North Sea 26 260 h 8m -
Northumbrian Water NEWBIGGIN SEWAGE TREATMENT WORKS North Sea 22 248 h 46m -
Northumbrian Water BLYTH (NEW) SEWAGE TREATMENT WORKS River Blyth 18 221 h 10m -
Northumbrian Water Unknown Unknown 16 186 h 56m 22 h
Northumbrian Water Unknown Unknown 46 183 h 32m 119 h
Northumbrian Water CRAMLINGTON SEWAGE TREATMENT WORKS River Blyth 19 163 h 2m -
Northumbrian Water Unknown Unknown 42 162 h 11m -
Northumbrian Water WEST SLEEKBURN FARM CSO Sleek Burn 16 156 h 4m -
Northumbrian Water Unknown Unknown 19 124 h 56m 7 h
Northumbrian Water NORTH BLYTH SPS River Blyth 17 111 h 38m -
Northumbrian Water Unknown Unknown 27 111 h 3m 986 h
Northumbrian Water Unknown Unknown 25 87 h 41m -
Northumbrian Water Unknown Unknown 19 85 h 36m 49 h
Northumbrian Water Unknown Unknown 15 78 h 53m 23 h
Northumbrian Water SEATON NORTH HOTEL CSO (WK013) Rowlington Burn 18 77 h 58m -
Northumbrian Water Unknown Unknown 13 73 h 55m 430 h
Northumbrian Water ASHINGTON CSO PARK ROAD WK 006 Blackclose Burn 12 71 h 40m -
Northumbrian Water WELWYN FACTORY CSO Sleekburn 19 70 h 24m -
Northumbrian Water CRAMLINGTON SEWAGE TREATMENT WORKS River Blyth 16 69 h 31m -
Northumbrian Water SOUTH BLYTH HARBOUR CSO River Blyth 14 65 h 32m -
Northumbrian Water Unknown Unknown 12 60 h -
Northumbrian Water SLEEKBURN EAST CSO Sleek Burn 15 58 h 52m -
Northumbrian Water Unknown Unknown 12 55 h 40m -
Northumbrian Water BATES COLLIERY SPS River Blyth 11 54 h 18m -
Northumbrian Water JOHN STREET CSO Blyth Estuary 7 39 h 44m 829 h
Northumbrian Water Unknown Unknown 11 39 h 10m 913 h
Northumbrian Water Unknown Unknown 5 36 h 45m 926 h
Northumbrian Water Unknown Unknown 7 33 h 1m 27 h
Northumbrian Water Unknown Unknown 15 32 h 41m 122 h
Northumbrian Water Unknown Unknown 17 32 h 10m 8 h
Northumbrian Water Unknown Unknown 14 28 h 30m 836 h
Northumbrian Water Unknown Unknown 11 25 h 10m -
Northumbrian Water Unknown Unknown 11 23 h 34m 156 h
Northumbrian Water FRONT STREET CSO CH68 River Blyth 13 21 h 42m -
Northumbrian Water Unknown Unknown 15 21 h 13m 15 h
Northumbrian Water Unknown Unknown 11 19 h 28m 22 h
Northumbrian Water Unknown Unknown 9 16 h 28m 63 h
Northumbrian Water Unknown Unknown 3 15 h 45m 4,592 h
Northumbrian Water Unknown Unknown 15 13 h 53m 192 h
Northumbrian Water CLEASEWELL HILL SPS River Wansbeck 14 13 h 43m 187 h
Northumbrian Water BANK TOP CSO River Blyth 10 12 h 26m -
Northumbrian Water Unknown Unknown 10 11 h 10m -
Northumbrian Water GRANGE PARK CSO (WK016) Sleek Burn 7 10 h 22m -
Northumbrian Water BEDSIDE CSO Blyth 8 8 h 42m -
Northumbrian Water TAYLOR STREET CSO Blyth Estuary 6 7 h 2m -
Northumbrian Water LYNDHURST ROAD CSO River Wansbeck 3 6 h 54m -
Northumbrian Water Unknown Unknown 9 6 h 24m 204 h
Northumbrian Water GLAXO WEST CSO River Wansbeck 4 6 h 8m -
Northumbrian Water Unknown Unknown 5 6 h 6m 7 h
Northumbrian Water WILLOW BRIDGE CSO Sleek Burn 3 5 h 12m -
Northumbrian Water EAST HARTFORD PS Horton Burn 3 5 h 8m -
Northumbrian Water Unknown Unknown 5 4 h 32m 1,958 h
Northumbrian Water GREEN LANE CSO 9(WK 008) Wansbeck, 3 4 h 30m -
Northumbrian Water EAST FORD ROAD SPS Wansbeck Estuary 3 3 h 35m -
Northumbrian Water Unknown Unknown 2 3 h 22m 7 h
Northumbrian Water Unknown Unknown 7 2 h 11m -
Northumbrian Water Unknown Unknown 3 2 h 8m -
Northumbrian Water Unknown Unknown 3 1 h 54m 21 h
Northumbrian Water Unknown Unknown 1 1 h 30m 7 h
Northumbrian Water Unknown Unknown 1 1 h 18m 10 h
Northumbrian Water ASHINGTON DRIVE CSO HLF MOON RNDBWT Wansbeck Estuary 2 1 h 8m -
Northumbrian Water Unknown Unknown 3 1 h 2m -
Northumbrian Water Unknown Unknown 4 1 h 1m 128 h
Northumbrian Water Unknown Unknown 4 0 h 54m 882 h
Northumbrian Water Unknown Unknown 4 0 h 36m 21 h
Northumbrian Water Unknown Unknown 2 0 h 24m 7 h
Northumbrian Water Unknown Unknown 3 0 h 22m 513 h
Northumbrian Water Unknown Unknown 1 0 h 20m -
Northumbrian Water Unknown Unknown 1 0 h 18m 23 h
Northumbrian Water Unknown Unknown 1 0 h 8m -
Northumbrian Water Unknown Unknown 1 0 h 6m -
Northumbrian Water Unknown Unknown 0 0 h 346 h
Northumbrian Water 20 WANSBECK STREET Wansbeck Estuary 0 0 h -
Northumbrian Water NEWBIGGIN SSO (WILKIE TERRACE) North Sea 0 0 h -
Northumbrian Water BEVAN HOUSE Blyth Estuary 0 0 h -
Northumbrian Water Unknown Unknown 0 0 h 159 h
Northumbrian Water NORTH CAMBOIS PUMPING STATION North Sea 0 0 h -
Northumbrian Water COWPEN ROAD CSO River Blyth 0 0 h -
Northumbrian Water RIDLEY STREET SPS River Blyth 0 0 h -
Northumbrian Water Unknown Unknown 0 0 h 31 h
Northumbrian Water NORTH SEATON LEVEL CROSSING CSO River Wansbeck 0 0 h 5,348 h
Northumbrian Water MILLFIELD CSO Blyth, 0 0 h -
Northumbrian Water BOTHAL COTTAGES R Wansbeck 0 0 h -
Northumbrian Water WARSDELL STREET PUMPING STATION Blyth Saline Estuary 0 0 h -
Northumbrian Water PARK ROAD & GREEN LANE CSO Wansbeck, 0 0 h -
Northumbrian Water SOLINGEN ESTATE CSO River Blyth 0 0 h -
Northumbrian Water BRIARDALE ROAD CSO Blyth Estuary 0 0 h -
Northumbrian Water SOUTH GREEN LANE CSO Blackclose Dene 0 0 h -
Northumbrian Water NEDDERTON CSO Green Letch 0 0 h 313 h
Northumbrian Water BOTHAL CSO THE TUNNELS CM036 Bothal Burn 0 0 h -
Northumbrian Water HUGHBOURNE STREET CSO River Blyth 0 0 h -
Northumbrian Water BRIARDALE CSO Unnamed Sleek Burn 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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