Chester South and Eddisbury was polluted by sewage 1,810 times in 2024
lasting 11,179 hours - that's 1.29 years!

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Contains OS Data © Crown copyright & database right 2021-2024
© Top of the Poops 2021-2024
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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 Apr 16, 2025, 5:45 PM) there has been 1,320 hours of sewage overflows - that's 0.15 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 h duration
That's 1.29 years! On average 5 times a day
Change Over Time
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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.

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 0 of the total 51 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 %
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.

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