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Rawmarsh and Conisbrough

Polluted by sewage 1,611 times in 2025 lasting 4,294 hours

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Contains OS Data © Crown copyright & database right 2021-2024
© Top of the Poops 2021-2024

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Live data for Rawmarsh and Conisbrough in 2026

So far this year (as of 16 Aug 2026, 14:16) there has been 4,377 hours of sewage overflows, from 47 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s

Totals for Rawmarsh and Conisbrough in 2025

28 Sites polluted by Severn Trent Water Yorkshire Water
1,611 sewage dumps
4,294 hours duration
That's 5.96 months. On average 4.4 times a day

Change Over Time

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Constituencies near Rawmarsh and Conisbrough

Waterways in Rawmarsh and Conisbrough

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Pollution Summary 2025

Here are all the reported sewage overflow totals for Rawmarsh and Conisbrough in 2025. 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 all the declared CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s appeared to have monitoring enabled for more than 50% of the year

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Yorkshire Water Unnamed Of Harley Dyke WENTWORTH WWTW 99 1,638 100
Yorkshire Water River Don SWINTON SEWAGE TREATMENT WORKS 106 800 85.7
Yorkshire Water River Don ALDWARKE WWTW 936 316 86.4
Severn Trent Water Warmsworth Beck WARMSWORTH WASTEWATER TREATMENT WKS 49 165 100
Yorkshire Water Hooton Brook HOOTON ROBERTS STW 25 139 100
Yorkshire Water Harley Dike HARLEY STW 29 137 100
Yorkshire Water River Don DENABY SEWAGE TREATMENT WORKS 32 134 100
Yorkshire Water Clvrt Kilnhurst Cut LIME GROVE CSO 35 110 100
Yorkshire Water Hooton Brook RAVENFIELD VILLAGE STW 34 105 99.8
Severn Trent Water Hellaby Dyke RAVENFIELD COMMON PS/STM/EMERG OF 21 103 99
Yorkshire Water River Don FERRYBOAT LANE SEWAGE PUMPING STN 13 96 100
Yorkshire Water Roundwood Brook RAWMARSH NO 2 CSO 12 91 100
Yorkshire Water Kearsley Brook BURCROFT SEWAGE PUMPING STATION 36 90 97.5
Yorkshire Water Sheff CARLISLE STREET CSO 27 84 100
Yorkshire Water Brook Dike YORKSHIRE WATER SERVICES LTD 17 66 88.3
Yorkshire Water Brook Dyke WATH BROOK DIKE CSO 18 38 100
Yorkshire Water Harley Dike BARROWFIELD ROAD CSO 13 38 99.1
Yorkshire Water Parish Dyke STADIUM WAY CSO 8 36 100
Yorkshire Water Knoll Beck PONTEFRACT ROAD CSO 16 20 99.7
Yorkshire Water River Don GREYS BRIDGE CSO 3 20 100
Yorkshire Water River Don SWINTON (KILNHURST-HOOTON RD) SPS 9 18 100
Yorkshire Water Brook Dike WATH DONCASTER ROAD CSO 17 13 100
Yorkshire Water Brook Dike WATH MOOR ROAD CSO 17 12 100
Yorkshire Water Kearsley Brook KEARSLEY LNE/DAYLANDS AVE/HAMELINE 21 7 100
Yorkshire Water Knoll Beck MOORBRIDGE ROAD CSO 8 4 100
Yorkshire Water Brook Dike MELTON GREEN CSO 6 3 99.9
Severn Trent Water Warmsworth Beck WARMSWORTH - COMMON LANE CSO 2 1 99.1
Yorkshire Water Brook Dike Culverted WAT CHURCH STREET CSO 2 0 100
Yorkshire Water Brook Dike NEW HILL PARK CSO 0 0 97.8
Yorkshire Water River Don NORTH CLIFF ROAD CSO 0 0 100
Yorkshire Water Brook Dike STUMP CROSS ROAD CSO 0 0 100
Yorkshire Water Brook Dike WATH CEMETERY ROAD CSO 0 0 99.9
Yorkshire Water Brook Dike WATH WEST STREET CSO 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. Live sewage data from Stream Water API

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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