It's a Dirty Business

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Area of Outstanding Natural Beauty

North Pennines - Live Sewage

Polluted by sewage 4,092 hours in 2026 , monitoring offline 4,641 hours , potential overflows 1,711 hours so far..

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

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Totals for 2026

Sewage4,092 hours
Monitoring offline4,641 hours
Potential pollution1,711 hours
Storm overflows74

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Daily Data - when it rained, and when they spilled

Square = rainfall none → heavy
Drop = sewage minutes → all day
Potential pollution Monitoring offline
Jan - 1,572 hours , 1,098 offline
Feb - 1,842 hours , 1,006 offline
Mar - 537 hours , 1 potential
Apr - 29 hours , 396 potential
May - 23 hours , 121 potential
Jun - 12 hours , 20 offline
Jul - 0 hours
Aug - 44 hours , 324 potential
Sept - 12 hours , 720 potential
Oct - 18 hours , 147 potential

Storm overflows in and around North Pennines

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
Northumbrian Water ALLENDALE STW River East Allen 70 1,142h 42m -
Northumbrian Water WESTERN AREA STW River Wear 66 1,092h 47m -
Northumbrian Water ROOKHOPE STW Rookhope Burn 43 577h 7m -
Northumbrian Water NENTHEAD STW River Nent 35 432h 17m 2,061 h
Northumbrian Water FROSTERLEY SEWAGE TREATMENT WORKS Wear 26 274h 39m -
Northumbrian Water CHURCH DENE CSO Unnamed River Burn 40 163h -
Northumbrian Water BLANCHLAND STW River Derwent 13 102h 26m -
Northumbrian Water STOTSFIELD BURN CSO Rookhope Burn 13 46h 26m 523 h
United Utilities Stenkrith Bridge CSO River Eden 5 32h 32m -
Northumbrian Water THE CARAVAN PARK CSO River Nent 30 31h 36m -
United Utilities BLENCARN WwTW Blencarn Beck 8 27h 29m 64 h
Northumbrian Water HUNTSHIELD FORD CSO River Wear 5 25h 58m -
United Utilities Gamblesby PS Gamblesby Beck 8 24h 57m 31 h
Northumbrian Water ALSTON EJECTOR STATION SPS River South Tyne 8 24h 52m -
United Utilities CASTLE CARROCK WwTW Castle Carrock Beck 22 24h 11m 28 h
Northumbrian Water TINDALE STW Tarn Beck 5 18h 20m -
United Utilities DUFTON WwTW Mill Beck 12 17h 59m 80 h
United Utilities Unthank PS Hazelrigg Beck 5 14h 2m 29 h
Northumbrian Water SLAGGYFORD SPS River South Tyne 3 8h 29m -
Northumbrian Water FRONT STREET (TOWN HALL) CSO River Nent 4 2h 30m -
Northumbrian Water PHILIPBURN DENE SPS Philip Burn 1 1h 47m -
Northumbrian Water VEDRA CLOSE SSO Wear 2 1h 46m -
Northumbrian Water WESTGATE CSO River Wear 7 1h 22m 2,517 h
Northumbrian Water HOLMSFOOT CSO River Nent 3 1h 13m -
Northumbrian Water CSO AT HILLIERSON TERRACE River Nent 9 0h 58m 1,015 h
United Utilities Renwick CSO Harberry Beck 3 0h 24m -
Northumbrian Water WESTGATE CARAVAN SITE CSO Wear 1 0h 20m -
Northumbrian Water OPP OLD CASTLESIDE STW CSO Wharnley Burn 2 0h 16m -
Northumbrian Water THE FIRS CSO ED003 River South Tyne 1 0h 10m -
Northumbrian Water KINGS ARMS LANE CSO River Nent 3 0h 8m -
Northumbrian Water GARRIGILL MANHOLE 9901 SSO South Tyne 1 0h 4m -
Northumbrian Water Unknown Unknown 0 0h -
United Utilities Unthank PS Hazelrigg Beck 0 0h -
Northumbrian Water Unknown Unknown 0 0h -
Northumbrian Water THE PETH CSO River East Allen 0 0h -
Northumbrian Water Unknown Unknown 0 0h -
Northumbrian Water Unknown Unknown 0 0h -
Northumbrian Water Unknown Unknown 0 0h -
United Utilities Gamblesby PS Gamblesby Beck 0 0h -
Northumbrian Water Unknown Unknown 0 0h -
Northumbrian Water Unknown Unknown 0 0h -
United Utilities Murton (Bridge House) PS Murton Beck 0 0h -
United Utilities Stenkrith Bridge CSO River Eden 0 0h -
Northumbrian Water Unknown Unknown 0 0h -
Northumbrian Water Unknown Unknown 0 0h -
Northumbrian Water Unknown Unknown 0 0h -
Northumbrian Water Unknown Unknown 0 0h -
Northumbrian Water Unknown Unknown 0 0h -
Northumbrian Water Unknown Unknown 0 0h -
Northumbrian Water MARKET PLACE CSO Hudeshope Beck 0 0h -
Northumbrian Water Unknown Unknown 0 0h -
Northumbrian Water Unknown Unknown 0 0h -
Northumbrian Water Unknown Unknown 0 0h -
Northumbrian Water Unknown Unknown 0 0h -
Northumbrian Water Unknown Unknown 0 0h -
Northumbrian Water Unknown Unknown 0 0h -
Northumbrian Water Unknown Unknown 0 0h -
Northumbrian Water CATTON LEA CSO River East Allen 0 0h -
Northumbrian Water Unknown Unknown 0 0h -
Northumbrian Water Unknown Unknown 0 0h -
Northumbrian Water Unknown Unknown 0 0h -
United Utilities BLENCARN WwTW Blencarn Beck 0 0h -
Northumbrian Water Unknown Unknown 0 0h -
United Utilities Castle Carrok CSO (Adjacent Donlea House) Castle Carrock Beck 0 0h -
Northumbrian Water Unknown Unknown 0 0h -
United Utilities CASTLE CARROCK WwTW Castle Carrock Beck 0 0h -
Northumbrian Water Unknown Unknown 0 0h -
Northumbrian Water Unknown Unknown 0 0h -
United Utilities Castle Carrok CSO (Adjacent Donlea House) Castle Carrock Beck 0 0h -
United Utilities Murton (Bridge House) PS Murton Beck 0 0h -
Northumbrian Water MILL COTTAGE CSO River East Allen 0 0h -
United Utilities Renwick CSO Harberry Beck 0 0h -
Northumbrian Water Unknown Unknown 0 0h -
United Utilities DUFTON WwTW Mill Beck 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.