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Darlington - 2025 Sewage

Polluted by sewage 767 hours in 2025 , monitoring offline 9,483 hours , potential overflows 1,365 hours

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

Which Year?

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✔ means we have live data (𝑥 if not)

View Annual Sewage Data

You're looking at the totals that we have calculated for sewage in Darlington 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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Daily Data

Jan - 157 hours , 1,987 offline
Feb - 11 hours , 1,153 offline
Mar - 1 hours , 1,338 offline
Apr - 0 hours , 278 offline
May - 1 hours , 454 offline
Jun - 20 hours , 174 potential
Jul - 72 hours , 744 potential
Aug - 0 hours , 447 potential
Sept - 75 hours , 1,049 offline
Oct - 13 hours , 652 offline
Nov - 354 hours , 7 offline
Dec - 57 hours
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
Northumbrian Water HARROWGATE HILL SEWAGE PS Skerne, 7 85h 5m -
Northumbrian Water SOUTH PARK CSO DL035 River Skerne 17 84h 54m -
Northumbrian Water Brafferton Combined Sewer Overflow River Skerne 10 74h 16m -
Northumbrian Water Unknown Unknown 14 68h 5m 1 h
Northumbrian Water Unknown Unknown 12 62h 51m 980 h
Northumbrian Water Unknown Unknown 8 47h 39m 152 h
Northumbrian Water Unknown Unknown 8 43h 14m 6 h
Northumbrian Water Unknown Unknown 11 30h 21m 29 h
Northumbrian Water Unknown Unknown 12 28h 30m 3,931 h
Northumbrian Water REDWORTH SEWAGE PUMPING STATION Red House Beck, 7 25h 28m -
Northumbrian Water WHESSOE SPS River Skerne 4 23h 4m -
Northumbrian Water CREE BECK CSO Cree Beck 6 21h 2m -
Northumbrian Water Unknown Unknown 9 17h 41m 7 h
Northumbrian Water 248 GENEVA ROAD CSO Cree Beck Into Kent Beck 4 15h 50m -
Northumbrian Water DARLINGTON CROWN STREET NO 34 CSO River Skerne 4 15h 24m -
Northumbrian Water VICTORIA EMBANKMENT - POLAM LANE River Skerne 4 15h 18m -
Northumbrian Water Unknown Unknown 7 14h 28m 8 h
Northumbrian Water EDINBURGH DRIVE CSO Tees 4 13h 42m -
Northumbrian Water BEAUMONT HILL SSO Skerne 8 11h 50m -
Northumbrian Water NEASHAM ROAD CSO (Y5) River Skerne 7 9h 56m -
Northumbrian Water Unknown Unknown 4 8h 2m 587 h
Northumbrian Water Unknown Unknown 7 7h 46m -
Northumbrian Water Unknown Unknown 5 6h 35m 23 h
Northumbrian Water Unknown Unknown 6 6h 15m 432 h
Northumbrian Water DENE GROVE CSO Cocker Beck 3 6h -
Northumbrian Water Unknown Unknown 2 4h 34m 1,358 h
Northumbrian Water Unknown Unknown 4 4h 34m 996 h
Northumbrian Water YARM ROAD CSO (Y2) River Skerne 3 1h 32m -
Northumbrian Water Unknown Unknown 3 1h 6m 230 h
Northumbrian Water Unknown Unknown 1 1h 6m -
Northumbrian Water Unknown Unknown 2 1h 4m 16 h
Northumbrian Water NEASHAM ROAD (Y4) CSO River Skerne 2 1h 4m -
Northumbrian Water CSO YARM ROAD DL18 River Skerne 2 1h -
Northumbrian Water BROKEN BLACKWELL SCAR PUMPING STATION River Tees 1 0h 58m -
Northumbrian Water GLADSTONE STREET (G1) Skerne 3 0h 56m -
Northumbrian Water SOUTH PARK EAST CSO Skerne 2 0h 54m -
Northumbrian Water VICTORIA ROAD SPS River Skerne 2 0h 53m -
Northumbrian Water YARM ROAD CSO (Y6) River Skerne 1 0h 38m -
Northumbrian Water Unknown Unknown 2 0h 32m 15 h
Northumbrian Water Unknown Unknown 3 0h 27m 22 h
Northumbrian Water Unknown Unknown 1 0h 24m -
Northumbrian Water MAYFAIR ROAD CSO River Tees 1 0h 20m -
Northumbrian Water Unknown Unknown 2 0h 18m 655 h
Northumbrian Water Unknown Unknown 16 0h 18m 29 h
Northumbrian Water REAR FORSTER ST/EASSON ROAD CSO River Skerne 1 0h 16m -
Northumbrian Water HEIGHINGTON CSO Dene Beck 1 0h 16m -
Northumbrian Water Unknown Unknown 1 0h 16m 250 h
Northumbrian Water Unknown Unknown 1 0h 15m 192 h
Northumbrian Water Unknown Unknown 1 0h 10m 6 h
Northumbrian Water Unknown Unknown 1 0h 307 h
Northumbrian Water Unknown Unknown 0 0h -
Northumbrian Water Unknown Unknown 0 0h 39 h
Northumbrian Water YARM ROAD CSO (Y3) River Skerne 0 0h -
Northumbrian Water Unknown Unknown 0 0h 535 h
Northumbrian Water Unknown Unknown 0 0h -
Northumbrian Water SPRING COURT CSO DL006 West Beck 0 0h -
Northumbrian Water FORSTER STREET/EASSON ROAD CSO River Skerne 0 0h -
Northumbrian Water CSO AT WOODLAND ROAD Cocker Beck 0 0h -
Northumbrian Water Unknown Unknown 0 0h 7 h
Northumbrian Water ASKRIGG STREET COMBINED SEWER OVERF River Skerne 0 0h -
Northumbrian Water GENEVA ROAD CSO Cree Beck Tees Catchment 0 0h -
Northumbrian Water Unknown Unknown 0 0h 22 h
Northumbrian Water EASSON ROAD/DODDS STREET CSO River Skerne 0 0h 0 h
Northumbrian Water Unknown Unknown 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.