Top of the Poops | AONB Sewage Map - Live Data

Which Year?

Select Another Area

Area of Outstanding Natural Beauty

Totals for Arnside & Silverdale in 2026

Sewage195 hours

Monitoring offline130 hours

Potential pollution652 hours

Storm overflows12

Take Action

Share this page, post a message, and tell others about the huge problem of sewage pollution across the UK

We need your support!

Please consider a one-off or small recurring donation. We need your help to keep this site going.

Donate Now

Daily Data - when it rained, and when they spilled

Square = rainfall none → heavy

Drop = sewage minutes → all day

Potential pollution Monitoring offline

Jan - 0 hours

Feb - 10 hours , 4 potential

Mar - 110 hours , 8 potential

Apr - 1 hours

May - 0 hours

Jun - 0 hours

Jul - 0 hours

Aug - 11 hours , 0 potential

Sept - 17 hours , 1 potential

Oct - 44 hours , 637 potential

Nov - 0 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 Arnside & Silverdale

Company	Site Name	Receiving Waterway	Overflow Days	Total Duration (hours)	Offline/Potential Pollution
United Utilities	Arnside Promenade Pumping Station (Site ID 39042) (LAK0002)	River Kent Estuary, Morecambe Bay	32	94h 56m	25 h
United Utilities	Ash Meadow Pumping Station (Site id ASHME)(LAK0100)	Kent Estuary	6	39h 37m	-
United Utilities	Arnside Promenade/Silverdale Road CSO	Morecambe Bay Estuarine Wtrs	14	36h 32m	-
United Utilities	Milnthorpe Sewage PS	River Bela	7	20h 30m	120 h
United Utilities	Sandside PS	River Bela	1	2h 14m	-
United Utilities	Gardner Road Pumping Station (Site ID 25027) (LAN0058)	River Keer	2	1h 39m	637 h
United Utilities	Arnside Promenade Pumping Station (Site ID 39042) (LAK0002)	River Kent Estuary, Morecambe Bay	0	0h	-
United Utilities	Arnside Promenade/Silverdale Road CSO	Morecambe Bay Estuarine Wtrs	0	0h	-
United Utilities	Milnthorpe Sewage PS	River Bela	0	0h	-
United Utilities	Gardner Road Pumping Station (Site ID 25027) (LAN0058)	River Keer	0	0h	-
United Utilities	Ash Meadow Pumping Station (Site id ASHME)(LAK0100)	Kent Estuary	0	0h	-
United Utilities	Sandside PS	River Bela	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.

Analysing sewage pollution by the Water Industry

Media Queries

Get in touch if you have queries or want to discuss our data.

press [at] top-of-the-poops.org

Please Support Us

We rely on donations to fund our work. Please support us if you can

Yes! Support TOTP!

© 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

Please don't scrape these pages - we can maybe share our data with you

Arnside & Silverdale - Live Sewage