Top of the Poops | Constituency Sewage Map | Middlesbrough and Thornaby East

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Live data for Middlesbrough and Thornaby East in 2026

So far this year (as of 18 May 2026, 12:00) there has been 761 hours of sewage overflows, from 56 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s

Totals for Middlesbrough and Thornaby East in 2025

22 Sites polluted by Northumbrian Water

1,463 sewage dumps

1,859 hours duration

That's 2.58 months. On average 4 times a day

Change Over Time

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Constituencies near Middlesbrough and Thornaby East

Waterways in Middlesbrough and Thornaby East

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Pollution Summary 2025

Here are all the reported sewage overflow totals for Middlesbrough and Thornaby East 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 %
Northumbrian Water	Ormsby Beck	CARGO FLEET STW (OUTLET B)	168	1,059	99.95
Northumbrian Water	Old River Tees	ACKLAM ROAD CSO	66	196	89.2
Northumbrian Water	Tees Estuary	SUN STREET STORM SEWAGE OVERFLOW	36	124	99.25
Northumbrian Water	Ormesby Beck	LEVEN ROAD CSO	21	81	92.6
Northumbrian Water	Old River Tees	PRIORY ROAD CSO	29	79	98.9
Northumbrian Water	River Tees	ACKLAM STREET OUTFALL	44	60	100
Northumbrian Water	Old River Tees	OLD RIVER TEES PUMPING STATION	25	58	100
Northumbrian Water	Tees Estuary	CORNFIELD ROAD PUMPING STATION	6	28	99.9
Northumbrian Water	Ormesby Beck	GROVE ROAD CSO M009	14	27	99.7
Northumbrian Water	Old River Tees	STAINSBY ROAD CSO	7	26	74.3
Northumbrian Water	Tees Estuary	STATION STREET CSO	25	25	97.3
Northumbrian Water	River Tees	VULCAN STREET OUTFALL	8	23	90.4
Northumbrian Water	River Tees Estuary	NEWPORT ROAD CSO	960	21	97.7
Northumbrian Water	River Tees	SNOWDON ROAD PS	23	15	99.9
Northumbrian Water	Ormesby Beck	VERONICA STREET CSO	4	12	97.9
Northumbrian Water	Ormesby Beck	OAKFIELD ROAD CSO	5	3	99.5
Northumbrian Water	Middle Beck	THORNTON STREET PS	5	2	100
Northumbrian Water	Old River Tees	A66 RIDER SEWER CSO	4	2	97
Northumbrian Water	Middle Beck	JAMES STREET SSO	5	2	91
Northumbrian Water	Marton West Beck	DEEPDALE AVENUE NO2 CSO (M007)	4	2	98.9
Northumbrian Water	Stainsby Beck	TEDDER AVENUE SSO	2	2	94.3
Northumbrian Water	Marton West Beck	RAVENSCROFT AVE CSO	2	1	99.3
Northumbrian Water	Stainsby Beck	ALLENSWAY CSO	0	0	99.3

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

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Contains Water UK National Storm Overflow Hub Data CC-BY-SA 4.0 and analysis © 2025 Top-Of-The-Poops

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