Tonbridge was polluted by sewage 794 times in 2024
lasting 7,112 hours

Constituency

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✔ means we have experimental daily data since 2023

Live data for Tonbridge in 2025

So far this year (as of Apr 16, 2025, 5:45 PM) there has been 2,346 hours of sewage overflows

Totals for Tonbridge in 2024

19 Sites polluted by Southern Water

794 sewage dumps
7,112 h duration

That's 9.88 months. On average 2.2 times a day

Change Over Time

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Constituencies near Tonbridge

Waterways in Tonbridge

Daily Data

We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for Tonbridge, 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 Unknown

Daily data is experimental and data is not guaranteed to be accurate. Please inform us of any issue, we will fix.

Pollution Summary 2024

Here are all the reported sewage overflow totals for Tonbridge in 2024. 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 constituency 0 of the total 23 CSO locations had reporting enabled for less than half the year, of which 0 had zero reporting.

Company	Waterway	Site	Sewage Dumps	Duration (Hours)	Reporting %
Southern Water	Somerhill Stream	PRIORY MILL TONBRIDGE WPS	101	1,387	94.5
Southern Water	Hilden Brook	COLDHARBOUR LANE PUMPING STATION	89	1,210	99.2
Southern Water	River Medway	PENSHURST S.T.W.	100	793	99.7
Southern Water	River Eden	EDENBRIDGE WWTW	67	782	98.8
Southern Water	River Medway	CANNON LANE COMBINED SEWER OVERFLOW	72	552	100
Southern Water	Botany Stream	TONBRIDGE WWTW	35	471	98.2
Southern Water	River Medway	FORDCOMBE WASTEWATER TREATMENT WRKS	50	277	99.2
Southern Water	Botany Stream	PRIORY ROAD TONBRIDGE O/S 86 CSO	55	263	99.8
Southern Water	River Bourne	REEDS LANE, SHIPBOURNE CEO	29	238	99.9
Southern Water	River Medway	HILDEN PARK PUMPING STATION	44	225	99.9
Southern Water	Unnamed Dicth/Stream	EGGPIE LANE LEIGH CSO	41	204	100
Southern Water	Mill Stream	MILL STREAM, TONBRIDGE CSO	21	199	93.9
Southern Water	Hilden Brook	HAWDEN ROAD TONBRIDGE CSO	19	126	60.6
Southern Water	River Bourne	BOURNE BRIDGE CSO	19	113	99.8
Southern Water	Hilden Brook	HILDEN BRIDGE PUMPING STATION	13	106	100
Southern Water	Little Hawden Stream	CHARCOTT PLACE CEO	13	68	99.7
Southern Water	Freshwater River	CHIDDINGSTONE CAUSEWAY PUMPING STN	12	45	100
Southern Water	River Medway	HARTLAKE ROAD PUMPING STATION	11	38	99.8
Southern Water	River Medway	CHAFFORD LANE FORDCOMBE CEO	3	7	99.9
Southern Water	River Medway	ENFIELD ROAD LEIGH WPS	0	0	100
Southern Water	River Medway	LEIGH ROAD HILDENBOROUGH CSO	0	0	90
Southern Water	Hilden Brook	RIDING LANE HILDENBOROUGH CSO	0	0	90
Southern Water	Hilden Brook	COLDHARBOUR LANE CSO	0	0	67.6

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. This 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.

Analysing sewage pollution by the Water Industry

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