Leyton and Wanstead - 2025 Sewage

Polluted by sewage 31 hours in 2025

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

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View Annual Sewage Data

You're looking at the totals that we have calculated for sewage in Leyton and Wanstead 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.

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Daily Data

We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for Leyton and Wanstead, here you can see overflows in red, the darker the red, the more the CSO overflowed that day.

Each CSO has a row, the most recent data is on the right hand side.

Monitoring Online
Monitoring Offline
Polluting
Potentially Polluting
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Total Duration (days)
Thames Water Auckland Road (Leyton) Storm SPS Dagenham Brook 1 10 h 26m 0.42
Thames Water ELMCROFT AVENUE F TQ4189121G CSO River Roding 10 10 h 0.42
Thames Water ELMCROFT AVENUE XXX TQ40899104 CSO River Roding 4 3 h 54m 0.12
Thames Water Redbridge lane west, wanstead To River Roding 4 2 h 15m 0.08
Thames Water ELMCROFT AVENUE/NIGHTINGALE LANE TQ40886902 CSO River Roding 2 1 h 40m 0.04
Thames Water ELMCROFT AVENUE TQ40883902 CSO River Roding 4 1 h 28m 0.04
Thames Water ELMCROFT AVENUE (COLVIN GARDENS) TQ40899103 CSO River Roding 2 0 h 42m 0
Thames Water CHIGWELL ROAD TQ4189091F CSO River Roding 1 0 h 30m 0
Thames Water ELMCROFT AVENUE (COWLEY ROAD) TQ40885906 CSO River Roding 1 0 h 28m 0
Thames Water Empress Avenue N/A 1 0 h 18m 0
Thames Water ELMCROFT AVENUE (COLVIN GARDENS) TQ40899103 CSO River Roding 0 0 h 0
Thames Water Redbridge lane west, wanstead To River Roding 0 0 h 0
Thames Water ELMCROFT AVENUE F TQ4189121G CSO River Roding 0 0 h 0
Thames Water ELMCROFT AVENUE TQ40883902 CSO River Roding 0 0 h 0
Thames Water Empress Avenue N/A 0 0 h 0
Thames Water CHIGWELL ROAD TQ4189091F CSO River Roding 0 0 h 0
Thames Water ELMCROFT AVENUE (COWLEY ROAD) TQ40885906 CSO River Roding 0 0 h 0
Thames Water Auckland Road (Leyton) Storm SPS Dagenham Brook 0 0 h 0
Thames Water ELMCROFT AVENUE/NIGHTINGALE LANE TQ40886902 CSO River Roding 0 0 h 0
Thames Water ELMCROFT AVENUE XXX TQ40899104 CSO River Roding 0 0 h 0

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.