River Tweed Estuary polluted by sewage 74 times in 2025 - lasting 153 hours

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Totals for River Tweed Estuary in 2025
2 Sites polluted by Northumbrian Water
74 sewage dumps
153 h duration
That's 6.38 days. 1.4 times a week, on average
Constituencies along River Tweed Estuary
Places along River Tweed Estuary

Pollution Summary 2025

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

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Northumbrian Water River Tweed Estuary QUAY WALL SPS 42 77 96.6
Northumbrian Water River Tweed Estuary BT41 MAIN STREET NO 4 CSO 32 75 99.2

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.

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