Top of the Poops | Constituency Sewage Map | Preston

It's a Dirty Business

Watch Channel 4's documentary about the state of the water industry, then sign the petition to bring water back to public ownership.

Select Another Constituency

Constituency

Select the constituency from the drop-down

✔ means we have live data (𝑥 if not)

Live data for Preston in 2026

So far this year (as of 11 Aug 2026, 20:45) there has been 287 hours of sewage overflows, from 85 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s

Totals for Preston in 2025

32 Sites polluted by United Utilities

681 sewage dumps

1,636 hours duration

That's 2.27 months. On average 1.9 times a day

Change Over Time

Take Action

Your local MP is Mark Hendrick (Labour/Co-operative) - Find out more about their interests, donors, and voting at They Work For You

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

Constituencies near Preston

Waterways in Preston

We need your support!

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

Donate Now

Pollution Summary 2025

Here are all the reported sewage overflow totals for Preston in 2025. Sometimes sewage can be being dumped for months at a time.

Reporting refers to how much of the time the monitoring was active. In this constituency all the declared CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s appeared to have monitoring enabled for more than 50% of the year

Company	Waterway	Site	Sewage Dumps	Duration (Hours)	Reporting %
United Utilities	Eaves Bk, Savick Bk	MANOR HOUSE LANE CSO 33037	23	233	100
United Utilities	River Ribble	GEORGE STREET CSO 331VJ	67	163	90.4
United Utilities	River Ribble	BLACKPOOL ROAD CSO	78	146	99.9
United Utilities	Savick Brook	SAVICK BROOK PUMPING STATION	46	146	96.7
United Utilities	Eaves Brook	VICTORIA RD CSO 33023	61	146	99.5
United Utilities	River Ribble	BANK PARADE CSO	39	125	100
United Utilities	Eaves Bk, Savick Bk	CATTLE MARKET CSO	10	113	100
United Utilities	River Ribble	HOLME ROAD COMBINED SEWER OVERFLOW	62	104	93.1
United Utilities	Savick Bk, Ribble Est	LEA GATE PUMPING STATION	22	83	98.7
United Utilities	River Ribble Tidal Via Sws	RIBBLETON LANE CSO 33103	10	81	100
United Utilities	Swillbrook Clvrt R Ribble	ALBYN STREET EAST CSO 33102	4	54	99.8
United Utilities	River Ribble	WOLSELEY ROAD CSO	3	37	99.9
United Utilities	Tidal River Ribble	PRESTON NETWORK TERMINAL PUMPING ST	11	35	99.9
United Utilities	Rvr Ribble	THORNPARK PUMPING STATION 33007	10	33	99.9
United Utilities	Eaves Brook Savick Brook	WATLING STREET ROAD CSO 33024	3	29	91.8
United Utilities	River Ribble	FISHERGATE HILL CSO (CHAMBER C9)	3	20	52.5
United Utilities	Chain Caul Culvert	POWIS ROAD CSO 332MG PRE0025	2	14	100
United Utilities	Chain Caul Ward Storm	WATERY LANE DOUGLAS ST CSO PRE0110	2	14	100
United Utilities	River Ribble	WATERY LANE FORMER PS CSO 339DQ	2	14	70.3
United Utilities	River Ribble	FISHERGATE HILL CSO CHAMBER C8	3	13	60.8
United Utilities	Chain Caul Storm Culvert	WATERY LANE CSO PRE0108	1	4	99.9
United Utilities	Savick Brk Ribble Est	BANKSFIELD AVENUE CSO 33027	6	4	99.9
United Utilities	Savick Brook Via Sws	2 MILL LANE COMBINED SEWER OVERFLOW	5	3	95.5
United Utilities	Moore Brook Culvert	ST GEORGES ROAD CSO	168	3	96.2
United Utilities	Moor Brook Culvert	208 DEEPDALE ROAD CSO	8	2	94
United Utilities	Swillbrook Culvert	FRENCHWOOD KNOLL CSO 331UX	18	2	100
United Utilities	Moorbrook Culvert -> River Ribble	WATERY LANE CSO SHAFT C1 PRE0093	1	1	78.1
United Utilities	River Ribble Estuary	ST PAULS ROAD CSO	3	0	93.6
United Utilities	Swill Brook Clvrt River Ribble	HALSBURY STREET CSO 331XR	3	0	99.9
United Utilities	Clvrt Moor Brook Rvr Ribb	MOORBROOK STREET CSO 332F2	3	0	100
United Utilities	River Ribble	HAWTHORN CRESCENT CSO	3	0	98.7
United Utilities	Unamed Woodplumpton Brook	LIGHTFOOT LANE PS	1	0	80
United Utilities	River Ribble Via Storm Culvert	18 DEEPDALE ROAD	0	0	54.7
United Utilities	Eaves Brook	75 LOWER BANK ROAD CSO	0	0	100
United Utilities	River Ribble Tidal	DALE STREET CSO 331R7	0	0	88.8
United Utilities	Savick Brook	HASLAM PARK NORTH & SOUTH CSO	0	0	99.8
United Utilities	Storm Culvert Into R Ribble	LONDON ROAD	0	0	99.9
United Utilities	River Ribble Via Chain Culvert	MARSH LANE CSO PRE0021	0	0	100
United Utilities	Storm Culvert, Ribble	PERCY STREET CSO	0	0	99.8
United Utilities	Chain Caul Culvert Into Ribble	WEST STRAND CSO CHAMBER C10 PRE0071	0	0	100

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.

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