Top of the Poops | Constituency Sewage Map | Blyth and Ashington

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Live data for Blyth and Ashington in 2026

So far this year (as of 5 Sept 2026, 21:00) there has been 6,073 hours of sewage overflows, from 95 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s

Totals for Blyth and Ashington in 2025

39 Sites polluted by Northumbrian Water

1,050 sewage dumps

4,872 hours duration

That's 6.77 months. On average 2.9 times a day

Change Over Time

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Constituencies near Blyth and Ashington

Waterways in Blyth and Ashington

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Pollution Summary 2025

Here are all the reported sewage overflow totals for Blyth and Ashington 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 1 of the total 43 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway locations had reporting enabled for less than half the year.

Company	Waterway	Site	Sewage Dumps	Duration (Hours)	Reporting %
Northumbrian Water	River Blyth	BLYTH NO5 SPS	81	917	100
Northumbrian Water	North Sea	NEWBIGGIN SEWAGE TREATMENT WORKS	139	866	99.85
Northumbrian Water	North Sea	CAMBOIS SEWAGE TREATMENT WORKS	72	432	100
Northumbrian Water	River Blyth	BLYTH (NEW) SEWAGE TREATMENT WORKS	31	380	97.6
Northumbrian Water	River Blyth	BATES COLLIERY SPS	39	341	100
Northumbrian Water	Blyth Estuary	JOHN STREET CSO	55	310	96.5
Northumbrian Water	Blyth Saline Estuary	NORTH BLYTH PUMPING STATION	31	297	99.9
Northumbrian Water	Sleek Burn	WEST SLEEKBURN FARM CSO	30	232	95.2
Northumbrian Water	Rowlington Burn	SEATON NORTH HOTEL CSO (WK013)	43	168	98.3
Northumbrian Water	River Blyth	SOUTH BLYTH HARBOUR CSO	34	152	89.2
Northumbrian Water	Blackclose Burn	ASHINGTON CSO PARK ROAD WK 006	24	150	98.4
Northumbrian Water	Sleekburn	WELWYN FACTORY CSO	29	95	100
Northumbrian Water	Sleek Burn	SLEEKBURN EAST CSO	28	87	99.2
Northumbrian Water	River Blyth	FRONT STREET CSO CH68	32	57	99.7
Northumbrian Water	Wansbeck	CLEASEWELL HILL SPS	26	52	99.7
Northumbrian Water	Horton Burn	EAST HARTFORD PS	12	45	91.9
Northumbrian Water	Blyth	BEDSIDE CSO	11	41	99.5
Northumbrian Water	Blyth Estuary	BRIARDALE ROAD CSO	25	40	94.1
Northumbrian Water	River Blyth	BANK TOP CSO	26	36	99.7
Northumbrian Water	Sleek Burn	WILLOW BRIDGE CSO	16	25	99.1
Northumbrian Water	Wansbeck Estuary	EAST FORD ROAD PS EMERGENCY OVERFLO	11	22	99.9
Northumbrian Water	Sleek Burn	GRANGE PARK CSO (WK016)	21	22	98.5
Northumbrian Water	River Wansbeck	GLAXO WEST CSO	23	21	97.8
Northumbrian Water	River Wansbeck	NORTH SEATON LEVEL CROSSING CSO	3	16	31
Northumbrian Water	River Blyth	BLYTH NO6 SPS	29	15	99.8
Northumbrian Water	River Wansbeck	LYNDHURST ROAD CSO	14	14	97.3
Northumbrian Water	Wansbeck,	GREEN LANE CSO 9(WK 008)	6	6	92.9
Northumbrian Water	Blyth Estuary	BRIARDALE ROAD CSO	8	6	77.7
Northumbrian Water	North Sea	NEWBIGGIN SSO (WILKIE TERRACE)	3	3	100
Northumbrian Water	Green Letch	NEDDERTON CSO	9	2	95.8
Northumbrian Water	Wansbeck Estuary	ASHINGTON DRIVE CSO HLF MOON RNDBWT	6	1	99.7
Northumbrian Water	Blyth Saline Estuary	WARSDELL STREET PUMPING STATION	1	1	99.3
Northumbrian Water	Blyth Estuary	BEVAN HOUSE	1	1	98.8
Northumbrian Water	Blyth,	MILLFIELD CSO	3	1	99.4
Northumbrian Water	River Blyth	RIDLEY STREET SPS	1	0	99.9
Northumbrian Water	Wansbeck,	PARK ROAD & GREEN LANE CSO	120	0	99.7
Northumbrian Water	Blackclose Dene	SOUTH GREEN LANE CSO	4	0	100
Northumbrian Water	Unnamed Sleek Burn	BRIARDALE CSO	2	0	93.9
Northumbrian Water	R Wansbeck	BOTHAL COTTAGES	1	0	99.5
Northumbrian Water	Wansbeck Estuary	20 WANSBECK STREET	0	0	99.6
Northumbrian Water	River Blyth	COWPEN ROAD CSO	0	0	99.4
Northumbrian Water	North Sea	NORTH CAMBOIS PUMPING STATION	0	0	89.3
Northumbrian Water	River Blyth	SOLINGEN ESTATE CSO	0	0	95.9

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,
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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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