Maidstone

Polluted by sewage 38 times in 2025 lasting 55 hours

Monitoring fell below 50% in some locations so could be more

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Totals for Maidstone in 2025

9 Sites polluted by Southern Water
38 sewage dumps
55 hours duration
Sewage pollution map of Maidstone
Sewage pollution map of Maidstone: 55 hours in 2025
That's 2.29 days. 3.2 times a month, over the year

Change Over Time

Constituency for Maidstone

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Pollution Summary 2025

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

Reporting refers to how much of the time the monitoring was active. In this place 4 of the total 16 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway locations had reporting enabled for less than half the year.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Southern Water Medway Estuary CASTLE RD ALLINGTON PS+STORM TK CEO 14 27 99.5
Southern Water River Len BEARSTED WASTEWATER P S 9 13 99.6
Southern Water Freshwater River BOARLEY LANE PUMPING STATION 5 5 100
Southern Water River Len DERINGWOOD DRIVE MAIDSTONE CEO 1 4 100
Southern Water River Medway SOUTH STREET EAST BARMING CEO 3 2 100
Southern Water River Len OXFORD ROAD SHEPWAY CSO 1 0 99.4
Southern Water River Len KING STREET MAIDSTONE CSO 3 0 98.8
Southern Water River Len LOWER STONE STREET MAIDSTONE CSO 1 0 17
Southern Water River Medway BARKER ROAD MAIDSTONE CSO 1 0 99.5
Southern Water River Len SPOT LANE BEARSTED CEO 0 0 95.5
Southern Water River Len ALBION PLACE MAIDSTONE CSO 0 0 50
Southern Water River Medway BOXLEY ROAD MAIDSTONE CSO 0 0 73.9
Southern Water River Medway KNIGHTRIDER STREET CSO 0 0 48.5
Southern Water River Len PADSOLE LANE MAIDSTONE CSO 0 0 9.3
Southern Water River Medway SANDLING LANE MAIDSTONE CSO 0 0 48.85
Southern Water River Medway TOVIL WHARF WASTEWATER PS 0 0 100

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.