Keighley and Ilkley was polluted by sewage 2,515 times in 2023
lasting 17,639 hours - that's 2.04 years!
- but monitoring was disabled in some locations, so could be more

© OpenStreetMap contributors
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 Keighley and Ilkley in 2023
44 Sites polluted by Yorkshire Water
2,515 sewage dumps
17,639 h duration
That's 2.04 years! On average 6.9 times a day
Change Over Time
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Pollution Summary 2023

Here are all the reported sewage overflow totals for Keighley and Ilkley 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 1 of the total 51 CSO locations had reporting enabled for less than half the year, of which 1 had zero reporting.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Yorkshire Water River Aire KEIGHLEY (MARLEY) STW 337 3,862 99.03
Yorkshire Water Bridge House Beck OXENHOPE WWTW 166 2,752 100
Yorkshire Water River Wharfe BEN RHYDDING (ILKLEY) WPC WORKS, ST 140 2,566 100
Yorkshire Water River Wharfe ADDINGHAM PUMPING STATION 194 1,439 99.95
Yorkshire Water River Aire CEMETERY LANE CSO 136 942 99.8
Yorkshire Water River Wharfe ILKLEY SEWAGE TREATMENT WORKS 149 905 100
Yorkshire Water River Aire MORTON CSO 131 829 99.8
Yorkshire Water River Wharfe WYVIL CRESCENT CSO 107 822 100
Yorkshire Water River Wharfe MIDDLETON (ILKLEY) PUMPING STATION 49 507 100
Yorkshire Water River Wharfe WHEATLEY LANE 2 CSO 78 442 100
Yorkshire Water River Worth MYTHOLMES LANE CSO 77 363 100
Yorkshire Water River Aire KEIGHLEY ROAD 76 CSO 82 354 99.5
Yorkshire Water River Worth WORTH WAY NORTH BECK CSO 58 308 99.6
Yorkshire Water River Worth HAWORTH COMBINED SEWER OVERFLOW 85 281 99.9
Yorkshire Water Steeton Beck STEETON CSO 90 268 100
Yorkshire Water Mill Stream EASTBURN OLD STW CSO 53 200 94.1
Yorkshire Water River Worth EAST COWICK SEWAGE PUMPING STATION 50 128 99.15
Yorkshire Water River Wharfe SSO 250 METRES DOWNSTREAM 65 118 100
Yorkshire Water River Aire BRADFORD ROAD 5 CSO 72 94 99.8
Yorkshire Water River Aire KING GEORGE CSO 40 83 88.2
Yorkshire Water River Aire BRADFORD ROAD 26 57 16.3
Yorkshire Water River Aire GRANGE ROAD 7 CSO 41 51 100
Yorkshire Water Silsden Beck CLOG BRIDGE CSO 25 37 70.2
Yorkshire Water River Worth WORTH WAY SUN STREET CSO 34 32 100
Yorkshire Water River Worth Via Knowle Pk Spng SOUTH STREET KEIGHLEY CSO 32 30 100
Yorkshire Water Mill Stream Eastburn Beck LYON ROAD NO 2 CSO 20 25 100
Yorkshire Water Bridgehouse Beck BELLE ISLE ROAD CSO 41 23 100
Yorkshire Water River Worth INGROW LANE CSO 22 22 89.6
Yorkshire Water River Worth LONG LEE LANE CSO 15 20 99.9
Yorkshire Water River Worth SOUTH GOODS YARD CSO 25 13 99.9
Yorkshire Water Town Beck LOW MILL LANE 179 CSO 9 10 93.8
Yorkshire Water River Worth BRANDY MILL 34 CSO 15 9 100
Yorkshire Water Gingerbread Clough SPRING BANK CSO 7 9 100
Yorkshire Water River Worth PITT STREET CSO 7 7 99.9
Yorkshire Water River Aire BAR LANE CSO 16 7 97.1
Yorkshire Water Spicey Gill BRIDGE LANE SEWAGE PUMPING STATION 3 2 99.9
Yorkshire Water River Worth THE WALK CSO 5 2 100
Yorkshire Water River Aire WAVERLEY AVENUE CSO 4 1 100
Yorkshire Water River Worth DAMEMS ROAD CSO 2 1 91.6
Yorkshire Water River Worth LONG LEE LANE CSO 3 1 99.6
Yorkshire Water River Worth WOODHOUSE ROAD 36 CSO 1 0 99.9
Yorkshire Water River Worth INGROW BRIDGE CSO 1 0 93.6
Yorkshire Water River Aire BRIDGE INN KEIGHLEY CSO 1 0 80.4
Yorkshire Water Hog Holes Beck GLEN LEE LANE CSO 1 0 62.8
Yorkshire Water River Worth CLOUGHS MILL NO 2 CSO 0 0 93.2
Yorkshire Water Silsden Beck ST JOHN STREET CSO 0 0 85.3
Yorkshire Water River Wharfe WYVILL ROAD CSO 0 0 99.9
Yorkshire Water River Worth CONEY LANE CSO 0 0 23.4
Yorkshire Water River Wharfe LEEDS ROAD ILKLEY NO2 CSO 0 0 99.9
Yorkshire Water River Worth WOODHOUSE ROAD 38 CSO 0 0 24.9
Yorkshire Water River Worth LOW MILL LANE CSO 0 0 0

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.