South Northamptonshire was polluted by sewage 2,747 times in 2024
lasting 29,205 hours - that's 3.38 years!

Constituency

Select the constituency from the drop-down

✔ means we have experimental daily data since 2023

Live data for South Northamptonshire in 2025

So far this year (as of Apr 16, 2025, 6:15 PM) there has been 5,007 hours of sewage overflows - that's 0.58 years!

Totals for South Northamptonshire in 2024

64 Sites polluted by Anglian Water, Thames Water

2,747 sewage dumps
29,205 h duration

That's 3.38 years! On average 7.5 times a day

Change Over Time

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Constituencies near South Northamptonshire

Waterways in South Northamptonshire

Daily Data

We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for South Northamptonshire, 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 South Northamptonshire 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 66 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 %
Anglian Water	River Tove River Great Ouse N	TOWCESTER WATER RECYCLING CENTRE	119	2,304	98.6
Anglian Water	Hulcote Brook River Tove	TIFFIELD STW	118	2,215	99.7
Anglian Water	River Tove River Gre	SILVERSTONE STW	152	2,071	100
Anglian Water	Dogsmouth Brook	COSGROVE CSO	118	1,517	99
Anglian Water	River Tove	STOKE BRUERNE STW	179	1,510	100
Anglian Water	Wootton Brook	HACKLETON SPS	76	1,504	99.2
Anglian Water	Grendon Brook River Nene	BOZEAT STW	98	1,494	100
Anglian Water	River Tove	WAPPENHAM SPS EO	98	1,472	99.8
Anglian Water	Unknown River Nene	BRAFIELD SSO	107	1,448	96.7
Anglian Water	Farthingstone Brook River Nene	LITCHBOROUGH WRC	86	1,439	97.6
Anglian Water	River Tove	GREENS NORTON WRC	65	1,152	100
Anglian Water	Helmdon Brook River Tove	HELMDON WATER RECYCLING CENTRE	99	1,108	99.9
Anglian Water	Grendon Brook	YARDLEY HASTINGS STW	75	734	100
Thames Water	Washle Brook	MIDDLETON CHENEY WTW	53	678	99.8
Anglian Water	Syresham Stream	STORM SEWER OVERFLOW CROWFIELD PS	59	648	100
Thames Water	Farthinghoestream	GREATWORTH STW, GREATWORTH, NORTHAN	48	636	100
Anglian Water	River Nene	UNITY CLOSE SSO	82	634	98.7
Anglian Water	Grendon Brook	EASTON MAUDIT WRC	46	612	94
Anglian Water	River Chater	GRENDON STW	50	469	98.4
Anglian Water	Wotton Brook	ROTHERSTHORPE PS	45	411	100
Anglian Water	Silverstone Brook	WHITTLEBURY SEWAGE PUMPING STATION	38	367	100
Anglian Water	River Nene	KISLINGBURY PUMPING STATION	53	349	100
Thames Water	Culworth Brook	Culworth	48	345	99.4
Thames Water	Chacombe Brook	CHACOMBE STW, CHACOMBE, NORTHANTS	51	324	100
Anglian Water	Stream River Great Ouse	EVENLEY STW	38	321	100
Anglian Water	River Tove	PAULERSPURY - CUTTLE MILL PS	49	317	100
Thames Water	Kings Sutton Stream	KINGS SUTTON STW, KINGS SUTTON, NOR	36	309	98.6
Anglian Water	River Tove	HELMDON TERMINAL PUMPING STATION	26	290	98.5
Anglian Water	River Nene	KISLINGBURY BAPTIST CHAPEL SSO	39	289	99.4
Anglian Water	Denton Brook	DENTON TPS (NORTHANTS)	35	280	100
Anglian Water	River Tove	BRADDEN PS NO.2	20	245	100
Anglian Water	Great River Ouse	POTTERSPURY - CHURCH END CSO	24	171	100
Anglian Water	Grendon Brook	YARDLEY HASTINGS STW PS	9	163	99.7
Thames Water	Ashby Brook	MORETON PINKNEY WWTW	26	157	99.9
Anglian Water	River Nene	WEEDON ROAD CSO	47	157	100
Anglian Water	Wootton Brook River Nene	GAYTON(NORTHANTS) STW	40	125	100
Anglian Water	Milton Brook	SSO MILTON MALSOR	32	103	100
Anglian Water	Bugbrooke Brook	BUGBROOKE SPS	13	97	100
Anglian Water	Unknown	SHUTLANGER	14	83	99.5
Anglian Water	Un Castle Ashby	CASTLE ASHBY STW	28	82	100
Anglian Water	Wollaston Brook	WOLLASTON - LONDON ROAD CSO	54	67	100
Anglian Water	River Ouse	BRACKLEY TERMINAL PS	34	66	100
Anglian Water	Of Wollaston Brook	A508 ROUNDABOUT	43	63	100
Thames Water	Middleton Brook	BANBURY ROAD PUMPING STATION, MIDDL	30	61	88.5
Anglian Water	Bugbrooke Brook	BUGBROOKE SSO ACE LANE	18	61	99.6
Anglian Water	River Nene	HARPOLE - NORTHAMPTON ROAD CSO	14	36	100
Anglian Water	River Tove	COSGROVE 23 MAIN STREET CSO	12	33	100
Anglian Water	Pattishall Brook	EX PATTISHALL STW SSO	13	30	99.6
Anglian Water	River Nene	SSO UPPER HEYFORD	17	26	99.7
Anglian Water	Grendon Brook	SSO LOWER END	11	22	100
Anglian Water	Bugbrooke Brook	GRIMSCOTE PUMPING STATION	9	21	100
Anglian Water	Silverstone Brook	RES DEV GREEN LANE	3	19	100
Anglian Water	River Tove	BENGAL LANE	6	19	100
Anglian Water	Grendon Brook	GRENDON HALF MOON	8	8	98.4
Anglian Water	Grendon Brook	SSO	16	8	99.3
Anglian Water	River Tove	ABTHORPE TERMINAL PUMPING STATION	2	7	100
Anglian Water	Unknown	ROADE SO	5	2	99.9
Anglian Water	River Tove	BLAKESLEY TPS MANHOLE 135	2	2	100
Anglian Water	Bugbrooke Brook	BUGBROOKE WRC	4	1	100
Anglian Water	River Nene	WOLLASTON (8250) SSO	3	0	98.6
Anglian Water	Hinton Stream	BRACKLEY - BRIDGE STREET CSO	1	0	100
Anglian Water	Great River Ouse	DEANSHANGER CSO	1	0	100
Anglian Water	Unknown River Nene	LITTLE HOUGHTON SSO	1	0	99.9
Anglian Water	Salcey Brook	SALCEY FOREST SO	1	0	100
Anglian Water	Silverstone Brook River Tove	TOWCESTER TERMINAL PUMPING STATION	0	0	100
Anglian Water	Salcey Brook	ASHTON WATER RECYCLING CENTRE	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. 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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