Chester South and Eddisbury

Polluted by sewage 1,810 times in 2024 lasting 11,179 hours - That's 1.29 years!

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

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✔ means we have experimental daily data since 2023

Live data for Chester South and Eddisbury in 2025

So far this year (as of May 9, 2025, 9:30 AM) there has been 1,367 hours of sewage overflows - that's 0.16 years!

Totals for Chester South and Eddisbury in 2024

46 Sites polluted by Dwr Cymru Welsh Water, United Utilities

1,810 sewage dumps

11,179 hours duration

That's 1.29 years! On average 5 times a day

Change Over Time

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Your local MP is Aphra Brandreth (Conservative) - Find out more about their interests, donors, and voting at They Work For You

Constituencies near Chester South and Eddisbury

Waterways in Chester South and Eddisbury

Daily Data

We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for Chester South and Eddisbury, 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.

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Pollution Summary 2024

Here are all the reported sewage overflow totals for Chester South and Eddisbury 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 1 of the total 51 CSO locations had reporting enabled for less than half the year.

Company	Waterway	Site	Sewage Dumps	Duration (Hours)	Reporting %
Dwr Cymru Welsh Water	Unnamed Watercourse	MALPAS SUNNYSIDE PS	115	1,647	99.9
United Utilities	River Weaver	CREWE WWTW	111	1,333	100
United Utilities	Crowton Brook	KINGSLEY STW	85	1,105	100
Dwr Cymru Welsh Water	Aldford Brook	ALDFORD SEWAGE TREATMENT WORKS	107	976	99.8
Dwr Cymru Welsh Water	Golbourne Brook	CSO AT TATTENHALL STW	97	757	100
Dwr Cymru Welsh Water	Powsey Brook	SAIGHTON SEWAGE TREATMENT WORKS	121	663	99.9
United Utilities	Fir Brook	OAKMERE PUMPING STATION	51	500	100
Dwr Cymru Welsh Water	Of Balderton Brook	MARLSTON CUM LACHE PS SSO	45	476	53.3
United Utilities	Wettenhall Brook	TARPORLEY WWTW	84	372	99.85
United Utilities	Milton Brook	TARVIN STW	64	345	100
United Utilities	River Weaver	WEAVERHAM STW	37	306	98.25
United Utilities	River Weaver	BULKELEY STW	36	298	99.8
United Utilities	Crowton Brook	OFF RODDY LANE CSO (472O5)	78	246	99.1
United Utilities	Sandyford Brook	COTEBROOK STW	40	181	100
United Utilities	River Weaver	BADDILEY LANE SPS	50	175	99.7
United Utilities	Cuddington	CUDDINGTON PUMPING STATION	21	168	99.8
United Utilities	Caldy Brook River Dee	APPLEGARTH	19	164	99
United Utilities	River Gowy	BUNBURY STW	58	158	99.8
Dwr Cymru Welsh Water	River Dee	CHESTER WEIR (SOUTH BANK) CSO	39	147	96.7
United Utilities	Swanback Mill Brook	VICARAGE ROAD CSO	39	130	99
United Utilities	Wettenhall Brook	RUSHTON WASTEWATER TREATMENT WORKS	8	118	99.9
Dwr Cymru Welsh Water	Carden Brook	CSO TILSTON SEWAGE TREATMENT WORKS	35	102	99.5
United Utilities	River Weaver	WRENBURY WASTEWATER TREATMENT WORKS	24	94	99.9
Dwr Cymru Welsh Water	Dee	ECCLESTON PUMPING STATION	15	88	99.9
United Utilities	Sales Brook	WHITCHURCH ROAD SPS	34	71	99.9
Dwr Cymru Welsh Water	Bache Brook	CHESTER TROOPER INN CSO	37	71	99.9
Dwr Cymru Welsh Water	River Dee	THE DINGLE CHESTER CSO	113	62	92.6
Dwr Cymru Welsh Water	River Dee	GROSVENOR BRIDGE CSO	25	55	99.4
Dwr Cymru Welsh Water	Wych Brook	MALPAS SEWAGE TREATMENT WORKS	34	46	99.8
United Utilities	Cuddington Brook	WASTE LANE CSO SITE ID 472W0	25	37	99.1
United Utilities	River Weaver	BROOMHALL SPS	4	33	86.5
United Utilities	Cuddington Brook	CUDDINGTON LANE CSO (471QL)	15	31	89.8
Dwr Cymru Welsh Water	River Dee	SALTNEY SEWERAGE CHESTER STREET PS	23	31	99.4
Dwr Cymru Welsh Water	River Dee	SANDY LANE COMBINED SEWER OVERFLOW	12	26	99.9
United Utilities	Cuddington Brook	CUDDINGTON LANE CSO (471QL)	18	25	99.1
United Utilities	Shropshire Union Canal	WRENBURY HALL ROAD SPS	19	25	87.4
Dwr Cymru Welsh Water	Caldy Brook	THE RAKE AND PIKLE PUMPING STATION	3	23	99.8
Dwr Cymru Welsh Water	Millbrook	MILLBROOK PARK PUMPING STATION	5	19	99.9
United Utilities	River Weaver	OWLEY WOOD ROAD CSO	16	17	99.2
United Utilities	River Weaver	KEEPER'S LANE CSO (472BH)	14	13	99.3
Dwr Cymru Welsh Water	River Dee	EDGAR PARK CSO	16	9	98.2
Dwr Cymru Welsh Water	Ditch	PLOUGH LANE EAST PUMPING STATION	3	7	99.9
Dwr Cymru Welsh Water	Caldy Brook	CHRISTLETON WHITCHURCH ROAD PS	12	5	99.8
Dwr Cymru Welsh Water	River Dee	THE DINGLE COMBINED SEWER OVERFLOW	1	4	24.8
Dwr Cymru Welsh Water	Unnambed River	WELL STREET COMBINED SEWER OVERFLOW	1	0	72.8
Dwr Cymru Welsh Water	Balderton Brook	MARLSTON-CUM-LACHE PUMPING STATION	1	0	99.9
Dwr Cymru Welsh Water	River Dee	REAR OF 22 CURZON PARK NORTH CSO	0	0	99.2
Dwr Cymru Welsh Water	Caldy Brook	CHRISTLETON OLD WOMAN'S LANE CSO	0	0	99.9
Dwr Cymru Welsh Water	River Dee	HANDBRIDGE GREENBANK SPS	0	0	99.9
United Utilities	River Weaver	(IN SCOUT HUT) OWLEY WOOD ROAD CSO	0	0	99.5
Dwr Cymru Welsh Water	River Dee	CHESTER BELGRAVE PARK SPS	0	0	99.9

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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Chester South and Eddisbury Polluted by sewage 1,810 times in 2024 lasting 11,179 hours - That's 1.29 years! Monitoring fell below 50% in some locations so could be more

Chester South and Eddisbury