Tonbridge and Malling was polluted by sewage 743 times in 2023
lasting 6,653 hours
- but monitoring was disabled in some locations, so could be more

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Constituency

✔ means we have experimental daily data since 2023

Totals for Tonbridge and Malling in 2023

20 Sites polluted by Southern Water, Thames Water

743 sewage dumps
6,653 h duration

That's 9.24 months. On average 2 times a day

Change Over Time

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Constituencies near Tonbridge and Malling

Waterways in Tonbridge and Malling

Pollution Summary 2023

Here are all the reported sewage overflow totals for Tonbridge and Malling in 2023. 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 3 of the total 25 CSO locations had reporting enabled for less than half the year, of which 3 had zero reporting.

Company	Waterway	Site	Sewage Dumps	Duration (Hours)	Reporting %
Southern Water	Somerhill Stream	PRIORY MILL TONBRIDGE WPS	96	1,279	100
Southern Water	Hilden Brook	COLDHARBOUR LANE PUMPING STATION	90	1,253	99.8
Southern Water	River Eden	EDENBRIDGE WWTW	75	1,220	100
Southern Water	River Medway	CANNON LANE COMBINED SEWER OVERFLOW	67	477	100
Southern Water	River Medway	PENSHURST S.T.W.	67	463	99.8
Southern Water	Hilden Brook	HAWDEN ROAD TONBRIDGE CSO	47	362	90.4
Southern Water	Botany Stream	TONBRIDGE WWTW	32	317	98.9
Southern Water	River Bourne	REEDS LANE, SHIPBOURNE CEO	31	244	100
Southern Water	River Medway	HILDEN PARK PUMPING STATION	53	239	99.8
Southern Water	Unnamed Dicth/Stream	EGGPIE LANE LEIGH CSO	33	146	100
Southern Water	River Medway	FORDCOMBE WASTEWATER TREATMENT WRKS	32	139	100
Southern Water	Botany Stream	PRIORY ROAD TONBRIDGE O/S 86 CSO	41	131	100
Southern Water	Hilden Brook	HILDEN BRIDGE PUMPING STATION	17	99	100
Southern Water	Mill Stream	MILL STREAM, TONBRIDGE CSO	13	95	100
Southern Water	Little Hawden Stream	CHARCOTT PLACE CEO	12	50	96.3
Southern Water	River Bourne	BOURNE BRIDGE CSO	15	40	100
Southern Water	River Medway	CHAFFORD LANE FORDCOMBE CEO	8	31	100
Southern Water	Freshwater River	CHIDDINGSTONE CAUSEWAY PUMPING STN	9	29	100
Southern Water	Hilden Brook	RIDING LANE HILDENBOROUGH CSO	4	24	23
Southern Water	River Medway	HARTLAKE ROAD PUMPING STATION	1	4	99.9
Southern Water	Hilden Brook	COLDHARBOUR LANE CSO	0	0	0
Thames Water	Into Land	STANSTEAD	0	0	0
Thames Water	Into Land	FAIRSEAT	0	0	0
Southern Water	River Medway	ENFIELD ROAD LEIGH WPS	0	0	96.4
Southern Water	River Medway	LEIGH ROAD HILDENBOROUGH CSO	0	0	39.2

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

With generous support from:

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