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.

Pendlebury and Clifton

Polluted by sewage 816 times in 2025 lasting 2,991 hours

Select Another Place

Place Name

Select the place from the drop-down

✔ means we have live data

Totals for Pendlebury and Clifton in 2025

25 Sites polluted by United Utilities

816 sewage dumps

2,991 hours duration

That's 4.15 months. On average 2.2 times a day

Change Over Time

Constituency for Pendlebury and Clifton

Nearby Constituencies

Waterways in Pendlebury and Clifton

Take Action

Your local MP is Rebecca Long-Bailey (Labour) - 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

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 Pendlebury and Clifton 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 place 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	River Irwell	BOLTON WASTEWATER TREATMENT WORKS	116	1,395	97.5
United Utilities	Unity Brook	HULTON LANE ENDS STW	62	300	99.8
United Utilities	River Irwell	CLIFTON PUMPING STATION	69	297	100
United Utilities	River Irwell	PRESTWICH PS	66	214	99.8
United Utilities	River Irwell	AGECROFT POWER STATION CSO	73	124	97.8
United Utilities	River Irwell	RAINSOUGH BROW CSO	42	100	60.1
United Utilities	Slack Brook	CSO ADJ TO NUMBER 214 RAKE LANE	19	73	100
United Utilities	Slack Brook	CITY WALK PS	34	63	99.9
United Utilities	Gilda Brook	LANCASTER RD RADCLIFFE RD CSO 372CC	50	56	99.4
United Utilities	Slack Brook Via Suface Water S	QUEENSWAY CSO	14	49	100
United Utilities	River Irwell Via Sws	ROBIN HOOD CLIFTON PUMPING STATION	7	45	97.4
United Utilities	Slack Brook	MERE DRIVE / RAKE LANE CSO (374Y5)	14	41	99.9
United Utilities	Folly Brook	WELWYN DRIVE CSO 37044	77	38	98.5
United Utilities	River Irwell	LANGLEY ROAD CSO	32	33	99.9
United Utilities	River Irwell Via Sws	LAUNDRY ST/DUCHY RD CSO	27	33	100
United Utilities	River Irwell	LITTLETON ROAD CSO	23	31	99.7
United Utilities	Prestwich Clough Via Culvert	FARM HILL CSO 091KO	31	29	99.8
United Utilities	Prestwich Clough Clvrt Irwell	CARR CLOUGH CSO 091IG	35	27	99.9
United Utilities	River Irwell	CLIFTON HOUSE ROAD PUMPING STATION	2	15	99.2
United Utilities	River Irwell	AGECROFT COMMERCE PARK PUMPING STN	1	8	100
United Utilities	Folly Brook Via A Sws	IN FIELDS REAR OF 36 EAST DRIVE CSO	5	3	99.8
United Utilities	Folly Brook Via Sws	PARK ST/SWINTON HALL ROAD CSO	8	3	100
United Utilities	River Irwell	LANGLEY RD NORTH CSO	5	1	95.9
United Utilities	Folly Brook Via Sws	DORCHESTER RD ADJ NO 182 MANCH CSO	2	0	96.8
United Utilities	Gilda Brook Via Sws	VICTORIA RD/ORVIETTO AVENUE CSO	2	0	100
United Utilities	River Irwell	RIVERSIDE CSO BOLTO BOL0058	0	0	100
United Utilities	Gilda Brook	LANCASTER ROAD/HAYFIELD ROAD TANK	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

Full Copyright information available at: our GitHub page