Slack Brook polluted by sewage 67 times in 2025 - lasting 178 hours

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Totals for Slack Brook in 2025
3 Sites polluted by United Utilities
67 sewage dumps
178 h duration
That's 7.42 days. 1.3 times a week, on average
Constituencies along Slack Brook

Pollution Summary 2025

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

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
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 Slack Brook MERE DRIVE / RAKE LANE CSO (374Y5) 14 41 99.9

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.