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Ribble Valley - 2025 Sewage

Polluted by sewage 15,816 hours in 2025 - That's 1.83 years , monitoring offline 7,711 hours , potential overflows 2,070 hours

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

Which Year?

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View Annual Sewage Data

You're looking at the totals that we have calculated for sewage in Ribble Valley 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 - 3,233 hours , 227 potential
Feb - 181 hours , 274 potential
Mar - 159 hours , 231 potential
Apr - 2 hours , 343 potential
May - 351 hours , 1 potential
Jun - 942 hours , 23 potential
Jul - 219 hours , 21 potential
Aug - 91 hours , 21 potential
Sept - 2,444 hours , 67 potential
Oct - 1,932 hours , 44 potential
Nov - 2,715 hours , 546 potential
Dec - 3,542 hours , 266 potential
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
United Utilities BARTON WwTW Barton Brook 123 1,884 h 4m 432 h
United Utilities WADDINGTON WwTW Bashall Brook 111 1,354 h 22m -
United Utilities BILLINGTON WwTW River Calder 95 1,116 h 51m -
United Utilities Hurst Green WwTW Dean Brook 111 1,004 h 31m 54 h
United Utilities WHALLEY WwTW River Calder 67 689 h 48m 23 h
United Utilities BARTON WwTW Barton Brook 33 589 h 14m 49 h
United Utilities WADDINGTON WwTW Bashall Brook 33 573 h 45m -
United Utilities CLITHEROE WwTW Barrow Clough/Pendleton Brook 58 509 h 14m 4 h
United Utilities BILLINGTON WwTW River Calder 29 434 h 40m -
United Utilities Hurst Green WwTW Dean Brook 29 391 h 4m 98 h
United Utilities M/H 63 East End of Copster Green CSO Dinckley Brook 76 380 h 8m 17 h
United Utilities Field East of River Darwin CSO River Darwin 50 376 h 16m 0 h
United Utilities GISBURN WwTW River Ribble 69 333 h 59m 141 h
United Utilities WHALLEY WwTW River Calder 21 296 h 42m -
United Utilities WILPSHIRE WwTW Showley Brook 59 275 h 45m 61 h
United Utilities SLAIDBURN WwTW River Hodder 21 265 h 48m 32 h
United Utilities Field East of River Darwin CSO River Darwin 25 244 h 40m -
United Utilities Stirk House Hotel PS Wheatley Beck, River Ribble 20 243 h 36m -
United Utilities Hennel Lane CSO River Darwen 33 237 h 44m -
United Utilities Ridding Lane Combined Sewage Overflow River Calder 31 232 h 37m 800 h
United Utilities Lower Tabley PS Woodplumpton Brook 36 199 h 56m -
United Utilities CLITHEROE WwTW Barrow Clough/Pendleton Brook 21 194 h 7m 0 h
United Utilities Sharoe Green Hospital CSO Savick Brook 73 181 h 13m 105 h
United Utilities GISBURN WwTW River Ribble 19 176 h 36m 20 h
United Utilities Stirk House Hotel PS Wheatley Beck, River Ribble 27 175 h 24m 0 h
United Utilities WALTON-LE-DALE WwTW River Ribble Estuary 23 167 h 8m 5 h
United Utilities Causey Way CSO Boundary Brook 25 165 h 19m 575 h
United Utilities Lower Brundhurst Farm CSO Mellor Brook 47 160 h 41m -
United Utilities Gregson Lane Area CSO Duddon Estuary 64 155 h 56m 1 h
United Utilities GRINDLETON WwTW River Ribble/West Clough Brook 20 155 h 29m -
United Utilities Whittams Farm CSO Un River Calder 67 148 h 12m 1 h
United Utilities Ridding Lane Combined Sewage Overflow River Calder 18 139 h 38m -
United Utilities GISBURN WwTW River Ribble 13 128 h 30m 45 h
United Utilities Daub Hall Lane, Walton-le-Dale CSO Black Brook 54 126 h 24m 9 h
United Utilities M/H 63 East End of Copster Green CSO Dinckley Brook 18 124 h 36m -
United Utilities Mellor Brook PS Mellor Brook 42 124 h 19m -
United Utilities Petre Arms Roundabout CSO Stream Bushburn Brook 15 111 h 10m -
United Utilities Bolton by Bowland Skirden Beck 20 106 h 28m 0 h
United Utilities WILPSHIRE WwTW Showley Brook 15 95 h 52m 0 h
United Utilities West Bradford WwNPS West Bradford Brook 16 91 h 56m 0 h
United Utilities Yew Tree Drive CSO Arley Brook 30 91 h 44m -
United Utilities Hennel Lane CSO River Darwen 13 88 h 36m -
United Utilities Mellor Brook PS Mellor Brook 17 82 h 41m -
United Utilities West Bradford WwNPS West Bradford Brook 12 80 h 47m 35 h
United Utilities South of Old Langho Road CSO Bushburn Brook 9 79 h 43m -
United Utilities Spring Gardens(Waddington) CSO Waddington Brook 28 75 h 12m 5 h
United Utilities WALTON-LE-DALE WwTW River Ribble Estuary 11 68 h 55m -
United Utilities SLAIDBURN WwTW River Hodder 7 68 h 34m 61 h
United Utilities BLACKBURN WwTW Hole Brook 14 59 h 45m 28 h
United Utilities Duddle Lane CSO Hennel Brook 9 50 h 51m -
United Utilities RIBCHESTER WwTW River Ribble 7 46 h 13m -
United Utilities Osbaldeston PS Bezza Brook 8 46 h 6m 99 h
United Utilities Lower Brundhurst Farm CSO Mellor Brook 13 42 h 50m -
United Utilities Sharoe Green Hospital CSO Savick Brook 15 42 h 30m 13 h
United Utilities Cow Hill Lane, Preston CSO (33100) Savick Brook Rvr Ribble 3 38 h 31m -
United Utilities Sharoe Green Lane combined sewer overflow (33034) (PRE0124) Savick Brook 18 37 h 5m 45 h
United Utilities Gregson Lane Area CSO Duddon Estuary 14 36 h 16m -
United Utilities Lower Tabley PS Woodplumpton Brook 7 35 h 48m -
United Utilities Whittams Farm CSO Un River Calder 16 35 h 44m -
United Utilities Daub Hall Lane, Walton-le-Dale CSO Black Brook 13 34 h 58m -
United Utilities West of Dewhurst Farm CSO Dinckley Brook 39 30 h 52m 0 h
United Utilities Copster Green Sewer Ejector Station Showley Brook 2 30 h 21m 583 h
United Utilities Black Bull Lane M/H C1 Savick Brook 24 28 h 42m 677 h
United Utilities ST MARYS CHURCH CSO Chipping Brook 26 28 h 38m 4 h
United Utilities REAR OF No4 RIBBLE AVENUE CSO Culverted Grindleton Brook 13 24 h 42m -
United Utilities Longridge Combined Sewer Overflow Savick Brook 11 22 h 22m 266 h
United Utilities GISBURN WwTW River Ribble 3 16 h 51m -
United Utilities Spring Gardens(Waddington) CSO Waddington Brook 9 16 h 4m -
United Utilities Cann Bridge Street CSO River Darwen 23 14 h 2m 12 h
United Utilities Garstang Road Bridge CSO Savick Brook 7 10 h 52m 37 h
United Utilities Rear of Lunar Caravans CSO River Lostock 10 10 h 36m 0 h
United Utilities Petre Arms Roundabout CSO Stream Bushburn Brook 3 10 h 32m -
United Utilities ST MARYS CHURCH CSO Chipping Brook 6 10 h 22m -
United Utilities GRINDLETON WwTW River Ribble/West Clough Brook 2 8 h 54m -
United Utilities Yew Tree Drive CSO Arley Brook 7 8 h 41m -
United Utilities BLACKBURN WwTW Hole Brook 3 8 h 5m 13 h
United Utilities Brownedge Lane CSO Cockshott Bk Trb R Darwen 3 6 h 20m -
United Utilities Slaidburn PS River Hodder 4 5 h 47m 1,877 h
United Utilities Causey Way CSO Boundary Brook 2 5 h 26m -
United Utilities Bolton by Bowland Skirden Beck 2 4 h 58m -
United Utilities West of Dewhurst Farm CSO Dinckley Brook 3 2 h 44m -
United Utilities REAR OF No4 RIBBLE AVENUE CSO Culverted Grindleton Brook 2 1 h 20m 1 h
United Utilities MH Y6 Havelock Road CSO River Lostock 1 0 h 32m 1 h
United Utilities Sharoe Green Lane combined sewer overflow (33034) (PRE0124) Savick Brook 1 0 h 28m -
United Utilities Cann Bridge Street CSO River Darwen 2 0 h 26m -
United Utilities Longridge Combined Sewer Overflow Savick Brook 1 0 h 18m -
United Utilities MH Y6 Havelock Road CSO River Lostock 1 0 h 10m 2 h
United Utilities RIBCHESTER WwTW River Ribble 1 0 h 187 h
United Utilities CUERDALE LANE CSO River Ribble 0 0 h 0 h
United Utilities Black Bull Lane M/H C1 Savick Brook 0 0 h -
United Utilities Holden WwTW Holden Beck 0 0 h -
United Utilities Garstang Road Bridge CSO Savick Brook 0 0 h -
United Utilities Grimsargh CSO Tun Brook 0 0 h -
United Utilities Rear of Lunar Caravans CSO River Lostock 0 0 h -
United Utilities RIBCHESTER WwTW River Ribble 0 0 h -
United Utilities Cow Hill Lane, Preston CSO (33100) Savick Brook Rvr Ribble 0 0 h -
United Utilities RIBCHESTER WwTW River Ribble 0 0 h -
United Utilities Chipping WwTW Chipping Brook 0 0 h -
United Utilities CUERDALE LANE CSO River Ribble 0 0 h -
United Utilities Slaidburn PS River Hodder 0 0 h 2,472 h
United Utilities Holden WwTW Holden Beck 0 0 h 613 h
United Utilities Osbaldeston PS Bezza Brook 0 0 h -
United Utilities Grimsargh CSO Tun Brook 0 0 h 0 h
United Utilities South of Old Langho Road CSO Bushburn Brook 0 0 h -
United Utilities Copster Green Sewer Ejector Station Showley Brook 0 0 h 257 h
United Utilities Brownedge Lane CSO Cockshott Bk Trb R Darwen 0 0 h -
United Utilities Duddle Lane CSO Hennel Brook 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.