Top of the Poops | AONB Sewage Map - 2025 Data

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Area of Outstanding Natural Beauty

Totals for 2025

Sewage1,930 hours

Monitoring offline0 hours

Potential pollution0 hours

Storm overflows6

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Sewage pollution map of Quantock Hills, 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 - 807 hours

Feb - 250 hours

Mar - 0 hours

Apr - 10 hours

May - 0 hours

Jun - 1 hours

Jul - 0 hours

Aug - 0 hours

Sept - 8 hours

Oct - 0 hours

Nov - 146 hours

Dec - 705 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 Quantock Hills

Company	Site Name	Receiving Waterway	Overflow Days	Total Duration (hours)	Offline/Potential Pollution
Wessex Water	WEST BAGBOROUGH INLET	Back Stream	26	401h 1m	-
Wessex Water	KILVE BEACH CAR PARK STORM TANK	Bristol Channel	25	395h 57m	-
Wessex Water	CROWCOMBE STORM TANK	Doniford Stream	21	345h 38m	-
Wessex Water	WEST BAGBOROUGH INLET	Back Stream	36	337h 18m	-
Wessex Water	CROWCOMBE STORM TANK	Doniford Stream	18	282h 40m	-
Wessex Water	KILVE BEACH CAR PARK STORM TANK	Bristol Channel	15	168h 10m	-

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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It's a Dirty Business

Area of Outstanding Natural Beauty

Quantock Hills - 2025 Sewage

Polluted by sewage 1,930 hours in 2025

Quantock Hills - 2025 Sewage

Which Year?

Select Another Area

Totals for 2025

Take Action

We need your support!

Daily Data - when it rained, and when they spilled

Storm overflows in and around Quantock Hills

Data Sources & Accuracy

Media Queries

Please Support Us

It's a Dirty Business

Area of Outstanding Natural Beauty Quantock Hills - 2025 Sewage Polluted by sewage 1,930 hours in 2025

Quantock Hills - 2025 Sewage

Which Year?

Select Another Area

Totals for 2025

Take Action

We need your support!

Daily Data - when it rained, and when they spilled

Storm overflows in and around Quantock Hills

Data Sources & Accuracy

Media Queries

Please Support Us

Area of Outstanding Natural Beauty

Quantock Hills - 2025 Sewage

Polluted by sewage 1,930 hours in 2025