Wells and Mendip Hills was polluted by sewage 2,063 times in 2024
lasting 24,002 hours - that's 2.78 years!

Constituency

Select the constituency from the drop-down

✔ means we have experimental daily data since 2023

Live data for Wells and Mendip Hills in 2025

So far this year (as of Apr 16, 2025, 5:45 PM) there has been 4,395 hours of sewage overflows - that's 0.51 years!

Totals for Wells and Mendip Hills in 2024

42 Sites polluted by Wessex Water

2,063 sewage dumps
24,002 h duration

That's 2.78 years! On average 5.7 times a day

Change Over Time

Take Action

Your local MP is Tessa Munt (Liberal Democrat) - Find out more about their interests, donors, and voting at They Work For You

Constituencies near Wells and Mendip Hills

Waterways in Wells and Mendip Hills

Daily Data

We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for Wells and Mendip Hills, 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 Wells and Mendip Hills 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 46 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 %
Wessex Water	River Axe	WOOKEY WATER RECYCLING CENTRE	197	3,541	99.65
Wessex Water	Dolmead Rhyne	DRAYCOTT AND RODNEYSTOKE STW	123	2,108	100
Wessex Water	River Sheppey	SHEPTON MALLET WWTW	98	1,976	100
Wessex Water	Nidon Rhyne	BROADMEAD LANE PUMP STATION	99	1,933	100
Wessex Water	Lox Yeo	WINSCOMBE WWTW	114	1,721	99.65
Wessex Water	Cheddar Yeo	CHEDDAR WASTEWATER TREATMENT WORKS	85	1,252	100
Wessex Water	River Brue	MEARE WASTEWATER TREATMENT WORKS	85	1,200	99.7
Wessex Water	Whitelake	PILTON WATER RECYCLING CENTRE	62	1,170	85.8
Wessex Water	Sth Drain- Lwr Brue	SHAPWICK PUMPING STATION	65	974	100
Wessex Water	Cross Rhyne	CROSS EAST PUMPING STATION	55	861	99.9
Wessex Water	Cheddar Yeo	CLIFF STREET/REDCLIFFE STREET CSO	64	819	99.9
Wessex Water	Langford Brook	LANGFORD PUMPING STATION	46	791	99.9
Wessex Water	Landcourse Rhyne	WEDMORE WATER RECYCLING CENTRE	66	752	94.4
Wessex Water	Congresbury Yeo	BLAGDON WASTEWATER TREATMENT WORKS	46	540	100
Wessex Water	Wells Moat Stream	WELLS STW	46	513	99.9
Wessex Water	Nidon Brook	GOOSE LANE COMBINED SEWER OVERFLOW	127	477	97.1
Wessex Water	Unknown	KINGSTON SEYMOUR WRC	51	355	100
Wessex Water	River Sheppey	SUNNY MOUNT CSO	56	351	99.5
Wessex Water	River Sheppey	MILL LANE PUMPING STATION	64	348	100
Wessex Water	Lower River Axe	BLEADNEY MILL PUMPING STATION	32	289	99.4
Wessex Water	Sandmead Rhyne	SANDMEAD LANE PUMPING STATION	27	268	99.5
Wessex Water	Helliers Stream Via Sws	41 WIDEATTS ROAD CSO	29	251	99.4
Wessex Water	River Yeo	FROGLANDS PUMPING STATION	69	204	98.7
Wessex Water	Wellow Brook	TERRACE WOOD CSO	67	180	88.1
Wessex Water	River Sheppey	COXLEY RIPPLE PUMPING STATION	18	175	100
Wessex Water	River Axe	GLEN COTTAGE CSO	56	172	99.4
Wessex Water	Greinton Rhyne	PEDWELL PUMPING STATION	29	162	96.8
Wessex Water	River Sheppey	LONG STREET COMBINED SEWER OVERFLOW	24	134	99
Wessex Water	Nidon Brook	CHILTON POLDEN PUMPING STATION	13	119	100
Wessex Water	River Sheppey	CATS ASH COMBINED SEWER OVERFLOW	43	69	99.5
Wessex Water	Wellow Brook	HOME FARM CSO	29	56	51
Wessex Water	Kings Sedgemoor Drain	SUTTON MALLET PUMPING STATION	6	33	99.9
Wessex Water	Towerhead Brook	SANDFORD BATCH PS	7	31	99.3
Wessex Water	St Andrews Stream	PRIORY HOSPITAL CSO	16	31	81.6
Wessex Water	River Sheppey Via Sws	FOSSE LANE PS	10	23	100
Wessex Water	River Axe	AXE ROAD COMBINED SEWER OVERFLOW	11	22	99.6
Wessex Water	River Sheppey	MANOR HOUSE COMBINED SEWER OVERFLOW	6	18	99.2
Wessex Water	Unnamed Rhyne	GILLS LANE PS	3	17	100
Wessex Water	River Axe Via Sws	KENNEL BATCH CSO	9	17	99.3
Wessex Water	Greinton Rhyne Drain	GREINTON WASTEWATER PUMPING STATION	5	16	99.9
Wessex Water	Axe Link Rhtne To River Yeo	LOXTON SEWAGE TREATMENT WORKS (NEW)	2	11	100
Wessex Water	River Sheppey Via Sws	CHARLTON ROAD CSO	3	0	94.9
Wessex Water	Small Moor Rhyne	WALTON GLOBE PUMPING STATION	0	0	100
Wessex Water	Ellenge Stream	AXBRIDGE PUMPING STATION	0	0	99.7
Wessex Water	Groundwater Via Infilt System	SHAFTGATE AVENUE CSO	0	0	99.4
Wessex Water	River Sheppey	CROSCOMBE STW	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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