It's a Dirty Business

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Sevenoaks - 2025 Sewage

Polluted by sewage 0 hours in 2025 , monitoring offline 563 hours

© OpenStreetMap contributors
Contains OS Data © Crown copyright & database right 2021-2024
© Top of the Poops 2021-2024

Which Year?

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✔ means we have live data (𝑥 if not)

View Annual Sewage Data

You're looking at the totals that we have calculated for sewage in Sevenoaks for 2025. It is an estimate, based on very poor quality live data from the Water Companies. This may not align with the 'official' reported sewage values from the water companies, which is reported in April following then end of the year - so 2025 numbers are reported in April 2026.

What's a potential overflow? If the CSO goes 'Offline' while its Overflowing, we don't know if it stopped overflowing until we get a 'Stop' event.

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Daily Data

Jan - 0 hours
Feb - 0 hours
Mar - 0 hours , 62 offline
Apr - 0 hours
May - 0 hours
Jun - 0 hours
Jul - 0 hours
Aug - 0 hours
Sept - 0 hours
Oct - 0 hours , 130 offline
Nov - 0 hours , 136 offline
Dec - 0 hours , 233 offline
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
Thames Water Wilderness Avenue (Sevenoaks) SPS Freshwater River 0 0 h 369 h
Thames Water Wilderness Avenue (Sevenoaks) SPS Freshwater River 0 0 h 193 h

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.