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North Durham - 2025 Sewage

Polluted by sewage 4,932 hours in 2025 , monitoring offline 16,987 hours , potential overflows 3,800 hours

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

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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 North Durham 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 North Durham

Daily Data

Jan - 1,133 hours , 1,287 offline
Feb - 359 hours , 716 offline
Mar - 29 hours , 900 offline
Apr - 16 hours , 816 potential
May - 22 hours , 744 potential
Jun - 11 hours , 720 potential
Jul - 176 hours , 872 potential
Aug - 13 hours , 647 potential
Sept - 486 hours , 1,242 offline
Oct - 113 hours , 2,144 offline
Nov - 1,635 hours , 2,370 offline
Dec - 934 hours , 1,374 offline
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 EAST TANFIELD STW Causey Burn 28 331h 13m -
Northumbrian Water CHESTER LE STREET STW Wear 28 317h 10m -
Northumbrian Water EDMONDSLEY STW Humble Burn 24 284h 42m -
Northumbrian Water Unknown Unknown 23 247h 40m 0 h
Northumbrian Water Unknown Unknown 18 190h 22m 782 h
Northumbrian Water BEECHVILLE CSO Cong Burn 22 182h 18m -
Northumbrian Water Unknown Unknown 22 164h 7m -
Northumbrian Water EAST TANFIELD STW Causey Burn 26 160h 52m -
Northumbrian Water Unknown Unknown 45 149h 13m -
Northumbrian Water Unknown Unknown 23 125h 17m 586 h
Northumbrian Water SACRISTON SEWAGE TREATMENT WORKS South Burn 13 102h 58m -
Northumbrian Water Unknown Unknown 30 94h 20m 7 h
Northumbrian Water LYNWOOD HOUSE CSO DER44 Smallhope Burn 21 79h 58m -
Northumbrian Water Unknown Unknown 12 79h 24m 4 h
Northumbrian Water Unknown Unknown 12 78h 24m 341 h
Northumbrian Water Unknown Unknown 29 77h 45m -
Northumbrian Water Unknown Unknown 14 76h 42m -
Northumbrian Water Unknown Unknown 24 76h 40m 180 h
Northumbrian Water Unknown Unknown 32 76h 38m 1,063 h
Northumbrian Water ST ANDREWS ROAD CSO Unnamed Houghwell Burn 20 76h 12m -
Northumbrian Water HUSTLEDOWN STW Twizell Burn 14 75h 45m -
Northumbrian Water LANCHESTER STW Smallhope Burn 14 73h 4m -
Northumbrian Water KIMBERLEY GARDENS CSO (DER 82) Twizell Burn 26 71h 18m -
Northumbrian Water Unknown Unknown 27 68h 7 h
Northumbrian Water Unknown Unknown 34 67h 32m 3,561 h
Northumbrian Water Unknown Unknown 14 63h 58m -
Northumbrian Water Unknown Unknown 14 63h 44m -
Northumbrian Water Unknown Unknown 14 59h 59m 22 h
Northumbrian Water PALM TERRACE CSO Farlieth Burn 11 59h 12m -
Northumbrian Water NIGHTINGALE PLACE CSO Stanley Burn, 19 56h 20m -
Northumbrian Water Unknown Unknown 18 55h 13m 685 h
Northumbrian Water Unknown Unknown 10 54h 49m -
Northumbrian Water Unknown Unknown 8 50h 30m 23 h
Northumbrian Water LINDOM AVENUE CSO River Wear 8 49h 54m -
Northumbrian Water PELTON FELL ROAD 3 CSO CH14 Chester Burn 18 47h 50m -
Northumbrian Water Unknown Unknown 9 45h 34m 7 h
Northumbrian Water KNITSLEY SEWAGE TREATMENT WORKS Smallhope Burn 3 45h 22m -
Northumbrian Water HOLYHILL GARDENS EAST CSO Stanley Burn 19 43h 42m -
Northumbrian Water Unknown Unknown 12 43h 30m -
Northumbrian Water Unknown Unknown 15 40h 37m 15 h
Northumbrian Water PARK ROAD CSO River Wear 15 40h 4m -
Northumbrian Water Unknown Unknown 9 39h 13m 12 h
Northumbrian Water Unknown Unknown 5 35h 51m 16 h
Northumbrian Water Unknown Unknown 19 35h 48m 7 h
Northumbrian Water MITCHEL TERRACE CSO Kyo Burn 14 33h 40m -
Northumbrian Water PELTON FELL ROAD CSO Chester Burn 14 31h 48m -
Northumbrian Water Unknown Unknown 7 31h 38m 21 h
Northumbrian Water Unknown Unknown 8 31h 29m 15 h
Northumbrian Water Unknown Unknown 12 29h 31m -
Northumbrian Water SHIELDS ROAD CSO River Wear 12 29h 2m -
Northumbrian Water Unknown Unknown 16 22h 47m -
Northumbrian Water PELAW BANK CSO CH57 Chester Burn 12 22h 44m -
Northumbrian Water FLOATERS MILL SPS Lumley Park Burn 7 22h 20m -
Northumbrian Water Unknown Unknown 16 21h 8m 138 h
Northumbrian Water Unknown Unknown 7 20h 6m 764 h
Northumbrian Water CSO ADJACENT 40 HOLLYHILL GARDENS Stanley Burn 9 16h 20m -
Northumbrian Water SOUTH MOOR MEMORIAL PARK SSO Stanley Burn 7 14h 34m -
Northumbrian Water Unknown Unknown 4 13h 55m -
Northumbrian Water Unknown Unknown 13 13h 42m -
Northumbrian Water Unknown Unknown 6 13h 41m -
Northumbrian Water SOUTHFIELDS CSO Chester Burn, 6 13h 6m -
Northumbrian Water RAILWAY SREET CSO Smallhope Burn 8 12h 58m -
Northumbrian Water Unknown Unknown 5 12h 18m 7 h
Northumbrian Water Unknown Unknown 2 12h 14m 2,937 h
Northumbrian Water 50 WOODSIDE GARDENS CSO Stanley Burn 5 12h -
Northumbrian Water TANFIELD COMPREHENSIVE SCHOOL CSO Kyo Burn 4 11h 52m -
Northumbrian Water LUMLEY SEWAGE PUMPING STATION Wear 2 11h 42m -
Northumbrian Water PLAWSWORTH CSO MH1 Black Dene Burn 12 10h 58m -
Northumbrian Water OAKS FIELD CSO Houghwell Burn 3 10h 38m -
Northumbrian Water MOUNT PLEASANT CSO DER41 Smallhope Burn 6 10h 16m -
Northumbrian Water Unknown Unknown 4 9h 34m 683 h
Northumbrian Water Unknown Unknown 8 8h 40m 8 h
Northumbrian Water DURHAM ROAD CSO Stanley Burn 6 8h 24m -
Northumbrian Water BEVERLEY GARDENS CSO River Wear 6 7h 54m 285 h
Northumbrian Water Unknown Unknown 9 7h 52m -
Northumbrian Water Unknown Unknown 4 7h -
Northumbrian Water Unknown Unknown 5 6h 48m 10 h
Northumbrian Water Unknown Unknown 1 6h 45m 130 h
Northumbrian Water Unknown Unknown 7 6h 40m 807 h
Northumbrian Water ELWIN PLACE CSO Cong Burn 6 6h 26m -
Northumbrian Water Unknown Unknown 4 6h 14m 122 h
Northumbrian Water Unknown Unknown 1 5h 39m -
Northumbrian Water Unknown Unknown 6 5h 37m -
Northumbrian Water Unknown Unknown 7 5h 36m -
Northumbrian Water BURNHOPE SEWAGE PUMPING STATION Ibbetsons' Sike 5 5h 36m -
Northumbrian Water Unknown Unknown 5 5h 19m 7 h
Northumbrian Water Unknown Unknown 6 5h 14m -
Northumbrian Water CHESTER LE STREET STW Wear 4 5h 8m -
Northumbrian Water Unknown Unknown 7 4h 46m 819 h
Northumbrian Water Unknown Unknown 3 4h 45m 15 h
Northumbrian Water Unknown Unknown 5 4h 22m 45 h
Northumbrian Water HUSTLEDOWN ROAD CSO Stanley Burn 6 4h 12m -
Northumbrian Water OUSTON VILLA FARM CSO Rowletch Burn 9River Team 2 3h 58m -
Northumbrian Water PARK ROAD NORTH CSO River Wear 3 3h 56m -
Northumbrian Water DUNN STREET Kyo Burn 3 3h 40m -
Northumbrian Water HOLMHILL FIELD CSO CH043 South Burn River Wear 2 3h 36m -
Northumbrian Water Unknown Unknown 5 3h 26m 0 h
Northumbrian Water HOPGARTH GARDENS CSO Cong Burn 2 3h 26m -
Northumbrian Water Unknown Unknown 1 2h 54m 459 h
Northumbrian Water TANFIELD TRUNK SEWER CSO Kyo Burn 1 2h 29m -
Northumbrian Water Unknown Unknown 3 2h 10m 23 h
Northumbrian Water RAILWAY GARDENS CSO DER047 Kyo Burn 4 2h 8m -
Northumbrian Water Unknown Unknown 3 2h 3m 39 h
Northumbrian Water SCORERS LANE CSO Broughs Gill 1 1h 22m -
Northumbrian Water Unknown Unknown 3 0h 58m 7 h
Northumbrian Water North of Front Street combined Stanley Burn 3 0h 56m -
Northumbrian Water LINTZ TERRACE CSO Kyo Burn 2 0h 50m -
Northumbrian Water Unknown Unknown 1 0h 50m 7 h
Northumbrian Water Unknown Unknown 3 0h 48m 31 h
Northumbrian Water Unknown Unknown 3 0h 46m 312 h
Northumbrian Water ASH MEADOWS CSO CHESTER LE STREET Of Wear Estuary 2 0h 46m -
Northumbrian Water WALDRIDGE ROAD CSO CH 13 Cong Burn 5 0h 44m -
Northumbrian Water SWINBURN PLACE CSO Rowletch Burn 2 0h 36m -
Northumbrian Water CONE LANE (CHESTER NO 4) CSO Chester Burn 2 0h 36m -
Northumbrian Water Unknown Unknown 8 0h 35m 15 h
Northumbrian Water Unknown Unknown 2 0h 32m -
Northumbrian Water Unknown Unknown 2 0h 32m -
Northumbrian Water WESTLINE INDUSTRIAL ESTATE CSO Rowletch Burn 2 0h 24m -
Northumbrian Water Unknown Unknown 5 0h 22m 7 h
Northumbrian Water Unknown Unknown 1 0h 22m 7 h
Northumbrian Water Unknown Unknown 5 0h 20m 7 h
Northumbrian Water Unknown Unknown 2 0h 16m 25 h
Northumbrian Water OLIVER STREET CSO Trip Of Stanley Burn 1 0h 14m -
Northumbrian Water Unknown Unknown 1 0h 12m 31 h
Northumbrian Water Unknown Unknown 1 0h 12m 15 h
Northumbrian Water KIMBLESWORTH CSO Blackdene Burn 1 0h 12m 490 h
Northumbrian Water Unknown Unknown 4 0h 10m -
Northumbrian Water Unknown Unknown 4 0h 10m 8 h
Northumbrian Water Unknown Unknown 1 0h 8m 15 h
Northumbrian Water THE OVAL CSO Rowletch Burn 1 0h 8m -
Northumbrian Water EAST VIEW CSO Stanley Burn 2 0h 6m -
Northumbrian Water Unknown Unknown 3 0h 6m 7 h
Northumbrian Water BACK LANE COMBINED SEWER OVERFLOW Brough'S Gill 2 0h 4m -
Northumbrian Water PELTON CSO Stella Gill 2 0h 2m -
Northumbrian Water Unknown Unknown 1 0h 2m 154 h
Northumbrian Water ROPERY LANE/EARDULPH AVE CSO Wear 1 0h 2m -
Northumbrian Water ROSE CRESCENT CSO Lumley Park Burn 1 0h 2m -
Northumbrian Water CONGBURN BANK CSO Cong Burn 1 0h 2m -
Northumbrian Water Unknown Unknown 1 0h 1m 134 h
Northumbrian Water DUKE STREET CSO Kyo Burn 1 0h -
Northumbrian Water BEAMISH CSO Urpeth Burn 0 0h -
Northumbrian Water Unknown Unknown 0 0h 23 h
Northumbrian Water WILLIAM STREET CSO Stanley Burn 0 0h -
Northumbrian Water Unknown Unknown 0 0h 208 h
Northumbrian Water Unknown Unknown 0 0h 276 h
Northumbrian Water ARGYLE COURT CSO Houghwell Burn 0 0h -
Northumbrian Water GRANGE VILLA CSO Blindy Burn 0 0h -
Northumbrian Water SOUTH MOOR ROAD FOOTBALL CLUB CSO Stanley Burn 0 0h -
Northumbrian Water CSO MANOR COURT Smallhope Burn 0 0h -
Northumbrian Water CHERRY BANKS CSO Wear 0 0h -
Northumbrian Water WHELDON TERRACE CSO Chester Burn 0 0h 89 h
Northumbrian Water Unknown Unknown 0 0h 97 h
Northumbrian Water TUART STREET CSO (NO1) Culverted Water Course To Chester Burn 0 0h -
Northumbrian Water CRICKET GROUND HOLMSIDE LANE CSO Iddeston'S Sike 0 0h -
Northumbrian Water BOURNMOOR SPS Lumley Park Burn 0 0h -
Northumbrian Water Unknown Unknown 0 0h 21 h
Northumbrian Water CAUSEY SEWAGE TREATMENT WORKS Causey Burn 0 0h -
Northumbrian Water Unknown Unknown 0 0h 83 h
Northumbrian Water WESLEY TERRACE CSO Kyo Burn 0 0h -
Northumbrian Water Unknown Unknown 0 0h -
Northumbrian Water Unknown Unknown 0 0h -
Northumbrian Water Unknown Unknown 0 0h -
Northumbrian Water STATION VILLAS CSO Houghwell Burn 0 0h -
Northumbrian Water OPP OLD CASTLESIDE STW CSO Wharnley Burn 0 0h -
Northumbrian Water WHITE-LE-HEAD ALLOTMENTS SSO Kyo Burn 0 0h -
Northumbrian Water WARKWORTH DRIVE CSO South Burn 0 0h -
Northumbrian Water SOUTH MOOR CSO CHARLES STREET DER066 - NWL name Culverted Stanley Burn 0 0h -
Northumbrian Water Unknown Unknown 0 0h 118 h
Northumbrian Water Unknown Unknown 0 0h -
Northumbrian Water Unknown Unknown 0 0h 22 h
Northumbrian Water THE MIDDLES CSO Stanley Burn 0 0h 1,688 h
Northumbrian Water CHARLAW TERRACE CSO Culverted Waterc' To Black Bur 0 0h -
Northumbrian Water FORMER CASTLE DENE SDW SSO Lumley Park Burn 0 0h -
Northumbrian Water Unknown Unknown 0 0h 204 h
Northumbrian Water Unknown Unknown 0 0h 45 h
Northumbrian Water ANNFIELD PLAIN & STANLEY CSO 8 Carrmyers Burn 0 0h -
Northumbrian Water STATION LANE CSO Chester Burn, 0 0h -
Northumbrian Water FRONT STREET CSO CH68 Chester Burn 0 0h -
Northumbrian Water Unknown Unknown 0 0h 23 h
Northumbrian Water HOLLINSIDE STW Browney, 0 0h -
Northumbrian Water SOUTH LEIGH CSO Houghwell Burn 0 0h -
Northumbrian Water CROSS LANE CSO CH8 Black Burn River Wear 0 0h -
Northumbrian Water Unknown Unknown 0 0h 1,731 h
Northumbrian Water Unknown Unknown 0 0h 199 h
Northumbrian Water THE BROOMS NORTH CSO Rowletch 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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Analysing sewage pollution by the Water Industry

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