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Area of Outstanding Natural Beauty

Forest Of Bowland - 2025 Sewage

Polluted by sewage 7,688 hours in 2025 , monitoring offline 7,033 hours , potential overflows 498 hours

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

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Totals for 2025

Sewage7,688 hours
Monitoring offline7,033 hours
Potential pollution498 hours
Storm overflows46

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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 - 1,648 hours , 42 potential
Feb - 107 hours , 0 potential
Mar - 58 hours , 24 potential
Apr - 133 hours , 85 offline
May - 105 hours , 63 offline
Jun - 353 hours , 6 potential
Jul - 413 hours , 107 potential
Aug - 31 hours , 128 potential
Sept - 1,155 hours , 74 potential
Oct - 533 hours , 12 potential
Nov - 1,356 hours , 26 potential
Dec - 1,790 hours , 74 potential

Storm overflows in and around Forest Of Bowland

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
United Utilities WADDINGTON WwTW Bashall Brook 111 1,354h 22m -
United Utilities Austwick SPS Fen Beck Via Drying Beds 60 1,099h 23m -
United Utilities Wray Wastewater Treatment Works (WRAYZ) (017270020) River Hindburn 104 864h 58m 185 h
United Utilities Austwick SPS Fen Beck Via Drying Beds 35 755h 13m 0 h
United Utilities CATON WwTW River Lune 63 597h 3m -
United Utilities WADDINGTON WwTW Bashall Brook 33 573h 45m -
United Utilities GISBURN WwTW River Ribble 69 333h 59m 141 h
United Utilities LOW BENTHAM WwTW River Wenning 43 283h 46m -
United Utilities CATON WwTW River Lune 18 267h 55m -
United Utilities SLAIDBURN WwTW River Hodder 21 265h 48m 32 h
United Utilities Wray Wastewater Treatment Works (WRAYZ) (017270020) River Hindburn 22 261h 17m 7 h
United Utilities HORNBY WwTW River Wenning 12 210h 25m 273 h
United Utilities GISBURN WwTW River Ribble 19 176h 36m 20 h
United Utilities GISBURN WwTW River Ribble 13 128h 30m 44 h
United Utilities Bolton by Bowland Skirden Beck 20 106h 28m 0 h
United Utilities Calder Vale PS River Calder 25 75h 35m 99 h
United Utilities SLAIDBURN WwTW River Hodder 7 68h 34m 61 h
United Utilities Thurtell Cottages CSO River Lune 20 45h 12m 1,511 h
United Utilities ST MARYS CHURCH CSO Chipping Brook 26 28h 38m 4 h
United Utilities Calder Vale PS River Calder 9 28h 24m -
United Utilities REAR OF No4 RIBBLE AVENUE CSO Culverted Grindleton Brook 13 24h 42m -
United Utilities Bull Beck Brookhouse Combined Sewer Overflow (Site ID 251HH) (LAN0089) Bull Beck 6 19h 30m 0 h
United Utilities Thurtell Cottages CSO River Lune 10 17h 52m -
United Utilities GISBURN WwTW River Ribble 3 16h 51m -
United Utilities LOW BENTHAM WwTW River Wenning 7 15h 52m -
United Utilities Clapham WwTW River Wenning 2 15h 14m 3 h
United Utilities Artle Beck CSO Artle Beck, River Lune 10 14h 40m 40 h
United Utilities ST MARYS CHURCH CSO Chipping Brook 6 10h 22m -
United Utilities Slaidburn PS River Hodder 4 5h 47m 1,877 h
United Utilities Bull Beck Brookhouse Combined Sewer Overflow (Site ID 251HH) (LAN0089) Bull Beck 3 5h 24m -
United Utilities Bolton by Bowland Skirden Beck 2 4h 58m -
United Utilities Sabden CSO Sabden Brook 6 3h 44m 126 h
United Utilities Hewlett Avenue CSO Tanyard Brook 5 2h 28m -
United Utilities Hindburn Bridge PS River Ehen 8 1h 43m -
United Utilities REAR OF No4 RIBBLE AVENUE CSO Culverted Grindleton Brook 2 1h 20m 1 h
United Utilities Artle Beck Road CSO Artle Beck, River Lune 6 1h 20m 0 h
United Utilities Hindburn Bridge PS River Ehen 1 0h 15m -
United Utilities Artle Beck Road CSO Artle Beck, River Lune 1 0h 12m -
United Utilities HORNBY WwTW River Wenning 1 0h 12 h
United Utilities Holden WwTW Holden Beck 0 0h 613 h
United Utilities Artle Beck CSO Artle Beck, River Lune 0 0h -
United Utilities Clapham WwTW River Wenning 0 0h -
United Utilities Chipping WwTW Chipping Brook 0 0h -
United Utilities Slaidburn PS River Hodder 0 0h 2,472 h
United Utilities Holden WwTW Holden Beck 0 0h -
United Utilities Sabden CSO Sabden Brook 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.