Sheffield, Hallam was polluted by sewage 595 times in 2023
lasting 2,021 hours

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Contains OS Data © Crown copyright & database right 2021-2023
© Top of the Poops 2021-2023
✔ means we have experimental daily data since 2023
Totals for Sheffield, Hallam in 2023
13 Sites polluted by Yorkshire Water
595 sewage dumps
2,021 h duration
That's 2.81 months. On average 1.6 times a day
Change Over Time
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Pollution Summary 2023

Here are all the reported sewage overflow totals for Sheffield, Hallam in 2023. 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 15 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 %
Yorkshire Water River Sheaf MILLHOUSES PARK CSO 105 605 99.7
Yorkshire Water River Rivelin RIVELIN VALLEY 3 CSO 91 364 100
Yorkshire Water River Don LANGSETT ROAD CSO 54 268 100
Yorkshire Water Porter Brook HANGINGWATER ROAD CSO 96 244 100
Yorkshire Water River Rivelin GLEN BRIDGE COMBINED SEWER OVERFLOW 52 161 100
Yorkshire Water Porter Brook WHITELEY WOODS CSO 50 137 100
Yorkshire Water Black Brook ROCHESTER ROAD SEWAGE PUMPING STN 21 76 99.9
Yorkshire Water Porter Brook ENDCLIFFE PARK CSO 29 48 100
Yorkshire Water Porter Brook STUMPERLOWE ROAD CSO 35 35 100
Yorkshire Water Porter Brook SLAYLEIGH LANE CSO 34 30 100
Yorkshire Water Porter Brook YORKSHIRE WATER SERVICES LTD, DETEN 3 25 19.9
Yorkshire Water Oak Brook RIVERDALE ROAD NO 2 CSO 21 20 100
Yorkshire Water Porter Brook SNAITHING LANE CSO 4 3 100
Yorkshire Water Porter Brook SNAITHING PARK ROAD CSO 0 0 94
Yorkshire Water Porter Brook BELGRAVE ROAD WEST 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. 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.