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Area of Outstanding Natural Beauty

Cannock Chase - 2025 Sewage

Polluted by sewage 29 hours in 2025 , monitoring offline 874 hours

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Area of Outstanding Natural Beauty

Totals for 2025

Sewage29 hours

Monitoring offline874 hours

Potential pollution0 hours

Storm overflows6

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Sewage pollution map of Cannock Chase, an Area of Outstanding Natural Beauty, showing where sewage is discharged

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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 - 8 hours , 187 offline

Feb - 0 hours , 12 offline

Mar - 0 hours , 392 offline

Apr - 0 hours , 92 offline

May - 0 hours

Jun - 0 hours

Jul - 0 hours

Aug - 0 hours , 66 offline

Sept - 7 hours

Oct - 1 hours

Nov - 6 hours , 124 offline

Dec - 5 hours

Daily data is experimental and data is not guaranteed to be accurate. Please inform us of any issue, we will fix.

Storm overflows in and around Cannock Chase

Company	Site Name	Receiving Waterway	Overflow Days	Total Duration (hours)	Offline/Potential Pollution
Severn Trent Water	GREAT HAYWOOD - MANHOLE 1 (CSO)	River Trent	12	24h 1m	24 h
Severn Trent Water	GREAT HAYWOOD - MANHOLE 1 (CSO)	River Trent	2	5h 7m	-
Severn Trent Water	CANNOCK WOOD - CHESTALL FARM (CSO)	River Humber	1	0h 25m	0 h
Severn Trent Water	CANNOCK WOOD - CHESTALL FARM (CSO)	River Humber	0	0h	-
Severn Trent Water	HEDNESFORD - BRADBURY LANE (CSO)	Wem Brook	0	0h	124 h
Severn Trent Water	HEDNESFORD - BRADBURY LANE (CSO)	Wem Brook	0	0h	726 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

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.

Analysing sewage pollution by the Water Industry

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© 2020-2025 Top-Of-The-Poops CC-BY-SA 4.0,
© Openstreetmap contributors, Contains OS data © Crown copyright and database right 2021-2025,
Contains Water UK National Storm Overflow Hub Data CC-BY-SA 4.0 and analysis © 2025 Top-Of-The-Poops

Some data reproduced under Open Government Licence

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