Top of the Poops | Constituency | Blackburn| Polluted by United Utilities

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✔ means we have experimental daily data since 2023

Live data for Blackburn in 2025

So far this year (as of May 29, 2025, 1:15 AM) there has been 655 hours of sewage overflows

Totals for Blackburn in 2024

35 Sites polluted by United Utilities

1,136 sewage dumps

3,122 hours duration

That's 4.34 months. On average 3.1 times a day

Change Over Time

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Your local MP is Adnan Hussain (Independent) - Find out more about their interests, donors, and voting at They Work For You

Constituencies near Blackburn

Waterways in Blackburn

Daily Data

We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for Blackburn, here you can see overflows in red, the darker the red, the more the CSO overflowed that day.

Each CSO has a row, the most recent data is on the right hand side.

Monitoring Online

Monitoring Offline

Polluting

Potentially Polluting

Unknown

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

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Pollution Summary 2024

Here are all the reported sewage overflow totals for Blackburn in 2024. 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 3 of the total 44 CSO locations had reporting enabled for less than half the year.

Company	Waterway	Site	Sewage Dumps	Duration (Hours)	Reporting %
United Utilities	River Darwen	AQUEDUCT ROAD CSO	71	568	99.1
United Utilities	Culvert River Darwen	SHARPLES STREET CSO	184	515	93.2
United Utilities	Leeds/Liverpool Canal	INFIRMARY STREET CSO 05050	28	276	92.9
United Utilities	River Blakewater V Sws	PHILIPS ROAD CSO (052LO)	133	276	98.3
United Utilities	River Blakewater	PHILIPS ROAD CSO	35	248	100
United Utilities	Clvrt'D Section Knuzden Brook	ACCRINGTON ROAD CSO	54	211	99.9
United Utilities	River Blakewater	LOWER AUDLEY CSO	55	164	99.6
United Utilities	River Blakewater	APPLEBY SREETT CSO	61	145	99.8
United Utilities	Queens Park Culvert Via Sws	CUMBERLAND STREET CSO	56	109	100
United Utilities	River Blakewater	THWAITES BREWERY YARD	43	106	9.8
United Utilities	River Blakewater	WITTON TANKS CSO	47	105	99.9
United Utilities	Little Harwood Brook	WHALLEY OLD RD/PROVIDENCE ST CSO	83	71	99.2
United Utilities	River Blakewater	ADDISON CLOSE CSO	36	64	13.3
United Utilities	Queens Park Culvert	DICKENS STREET CSO	26	62	100
United Utilities	River Darwen	BOLTON ROAD COMBINED SEWER OVERFLOW	54	59	100
United Utilities	Queens Park Culvert	QUEENS PARK ROAD CSO	19	48	99.9
United Utilities	River Blakewater	DUKES BROW CSO	38	20	99
United Utilities	River Darwen	GORSE ST COMBINED SEWER OVERFLOW	25	20	100
United Utilities	River Blakewater	GATE STREET CSO	24	15	96.1
United Utilities	River Blakewater	NEW MILL STREET CSO	6	14	97.7
United Utilities	River Blakewater	VICTORIA STREET CSO	26	5	99.3
United Utilities	River Darwen	CHERRY TREE WORKS SITE	6	3	99.2
United Utilities	River Darwen	293 PRESTON OLD ROAD CSO (052M0)	1	1	99.4
United Utilities	River Blakewater	NOTRE DAME GARDENS CSO	2	1	99.3
United Utilities	River Blakewater	APPLE STREET CSO	6	0	99.3
United Utilities	River Darwen	WELLINGTON ROAD CSO	2	0	98.9
United Utilities	River Blakewater	BROWNHILL DRIVE CSO	1	0	99.4
United Utilities	River Blakewater	BEECHWOOD ROAD CSO	1	0	98.1
United Utilities	River Blakewater	WHALLEY RANGE/GRACE STREET CSO	4	0	94.8
United Utilities	River Blakewater	RAMSGREAVE DRIVE CSO	1	0	99.7
United Utilities	River Blakewater Via Sws	WHALLEY RANGE/MILLHAM STREET CSO	4	0	98.6
United Utilities	River Blakewater	FIELDEN STREET CSO	1	0	94
United Utilities	River Blakewater	293 PRESTON OLD ROAD CSO (052M0)	1	0	100
United Utilities	River Blakewater	MANOR ROAD CSO (052ER)	1	0	99.3
United Utilities	River Blakewater	LARK HILL/BROOKHOUSE LANE CSO	1	0	87.5
United Utilities	River Blakewater	WHALLEY NEW ROAD CSO	0	0	99.3
United Utilities	River Blakewater	PRINGLE STREET CSO	0	0	40.2
United Utilities	River Blakewater	WHALLEY RANGE / WESLEY STREET CSO	0	0	96
United Utilities	River Blakewater	GREAT BOLTON STREET CSO	0	0	99.3
United Utilities	Culvert Pringle St	BACK QUEENS PARK RD	0	0	85.5
United Utilities	Arley Brook	REVIDGE RD/PRESTON NEW RD SSO	0	0	85
United Utilities	River Blakewater	DAISY LANE CSO	0	0	90.2
United Utilities	Culvert Culvert St	MERCHANTS LANDING CULVERT ST CSO	0	0	99.2
United Utilities	River Blakewater	GRIMSHAW PARK CSO	0	0	99.5

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. This 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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(C) 2020-2024 Top-Of-The-Poops CC-BY-SA 4.0,
(C) Openstreetmap contributors, Contains OS data © Crown copyright and database right 2021-2024,
Contains Water UK National Storm Overflow Hub Data CC-BY-SA 4.0 and analysis (C) 2024 Top-Of-The-Poops

Blackburn Polluted by sewage 1,136 times in 2024 lasting 3,122 hours Monitoring fell below 50% in some locations so could be more

Blackburn