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Gravesham - 2025 Sewage

Polluted by sewage 628 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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✔ 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 Gravesham 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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Constituencies near Gravesham

Daily Data

Jan - 78 hours
Feb - 11 hours
Mar - 0 hours
Apr - 26 hours
May - 0 hours
Jun - 38 hours
Jul - 34 hours
Aug - 18 hours
Sept - 16 hours
Oct - 135 hours
Nov - 26 hours
Dec - 242 hours
Daily data is experimental and data is not guaranteed to be accurate. Please inform us of any issue, we will fix.
Please note: We don't have rainfall data for Wales. If you know where to source it please let us know!
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
Southern Water EMPRESS ROAD DENTON CATCH CHAMBERS 1 CSO - 116097 Thames Estuary 11 196 h 30m -
Southern Water GRAVESEND NO.1 SSO - 115412 Tidal River Thames 34 146 h 52m -
Southern Water EMPRESS ROAD DENTON CATCH CHAMBERS 1 CSO - 116097 Thames Estuary 21 95 h 21m -
Southern Water EMPRESS ROAD DENTON CATCH CHAMBERS 3 CSO - 116099 Thames Estuary 11 61 h 34m -
Southern Water EMPRESS ROAD DENTON CATCH CHAMBERS 2 CSO - 116098 Thames Estuary 8 30 h -
Southern Water EMPRESS ROAD DENTON CATCH CHAMBERS 2 CSO - 116098 Thames Estuary 3 27 h 26m -
Southern Water GRAVESEND NO.1 SSO - 115412 Tidal River Thames 7 17 h 32m -
Southern Water CRAWLEY COURT GRAVESEND CSO - 115015 Thames Estuary 9 14 h 24m -
Southern Water OLD ROAD WEST GRAVESEND CSO - 108693 Tidal River Thames 9 13 h 11m -
Southern Water MILTON ROAD GRAVESEND CSO - 108695 Tidal River Thames 7 10 h 2m -
Southern Water COBHAM STREET GRAVESEND CSO - 108609 Tidal River Thames 1 6 h 40m -
Southern Water NORTHFLEET SSO - 115753 Tidal River Thames 1 3 h 6m -
Southern Water CROSS LANE EAST GRAVESEND CSO - 108704 River Thames - Tidal 9 2 h 38m -
Southern Water MILTON ROAD GRAVESEND CSO - 108695 Tidal River Thames 2 2 h 12m -
Southern Water HIGH STREET GRAVESEND OUTSIDE 70 CSO - 108651 River Thames Estuary 1 0 h 28m -
Southern Water SINGLEWELL ROAD GRAVESEND OUTSIDE XXX CSO - 108728 Tidal River Thames 2 0 h 12m -
Southern Water SINGLEWELL ROAD GRAVESEND OUTSIDE XXX CSO - 108728 Tidal River Thames 0 0 h -
Southern Water HIGH STREET GRAVESEND OUTSIDE 70 CSO - 108651 River Thames Estuary 0 0 h -
Southern Water CROSS LANE WEST GRAVESEND CSO - 108622 Tidal River Thames 0 0 h -
Southern Water EMPRESS ROAD DENTON CATCH CHAMBERS 3 CSO - 116099 Thames Estuary 0 0 h -
Southern Water OLD ROAD WEST GRAVESEND CSO - 108693 Tidal River Thames 0 0 h -
Southern Water CRAWLEY COURT GRAVESEND CSO - 115015 Thames Estuary 0 0 h -
Southern Water NORTHFLEET SSO - 115753 Tidal River Thames 0 0 h -
Southern Water COBHAM STREET GRAVESEND CSO - 108609 Tidal River Thames 0 0 h -
Southern Water CROSS LANE EAST GRAVESEND CSO - 108704 River Thames - Tidal 0 0 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.

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© Openstreetmap contributors, Contains OS data © Crown copyright and database right 2021-2025,
Contains Water UK National Storm Overflow Hub Data CC-BY-SA 4.0 and analysis © 2025 Top-Of-The-Poops

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