Harrogate and Knaresborough was polluted by sewage 1,663 times in 2023
lasting 8,726 hours - that's 1.01 years!

© 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 Harrogate and Knaresborough in 2023
41 Sites polluted by Yorkshire Water
1,663 sewage dumps
8,726 h duration
That's 1.01 years! On average 4.6 times a day
Change Over Time
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Pollution Summary 2023

Here are all the reported sewage overflow totals for Harrogate and Knaresborough 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 45 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 Ure BOROUGHBRIDGE STW 143 2,151 100
Yorkshire Water Oak Beck HARROGATE NORTH SEWAGE TREATMENT 157 1,244 99.8
Yorkshire Water Nidd And S KILLINGHALL/HAMPSTHWAITE/KETTLESING 131 825 96.1
Yorkshire Water Oak Beck And Coppice Beck HARROGATE HYDRO CSOS 410 768 95.15
Yorkshire Water Hookstone Beck CSO-HARROGATE STRAY 71 755 99.9
Yorkshire Water Tanner Beck SSO AT STAVELEY 47 622 80.5
Yorkshire Water River Nidd KNARESBOROUGH WPC WORKS 47 586 99.9
Yorkshire Water Crimple Beck CRIMPLE LANE CSO 76 399 99.5
Yorkshire Water River Nidd MANSE LANE 57 CSO 75 279 100
Yorkshire Water Rud Beck SHERWOOD DRIVE CSO 56 201 93.3
Yorkshire Water Mill Stream WATERSIDE 48 CSO 55 137 77
Yorkshire Water Crimple Beck ALMSFORD AVENUE CSO 63 135 100
Yorkshire Water River Crimple Via Sewer CSO ADJ TO STATION BRIDGE 47 105 100
Yorkshire Water Hookstone Beck HOOKSTONE ROAD CSO 26 97 100
Yorkshire Water Oak Beck OAKDALE AVENUE CSO 30 69 94.3
Yorkshire Water Nidd KILLINGHALL NO 2 CSO 24 66 100
Yorkshire Water Jumwell Beck LOW MOOR LANE SPS 21 63 99.4
Yorkshire Water Mill Stream WATERSIDE 47 CSO 24 35 100
Yorkshire Water Bilton Beck BILTON LANE COMBINED SEWER OVERFLOW 26 33 84.7
Yorkshire Water River Nidd SPITAL CROFT CSO 24 33 73.6
Yorkshire Water Oak Beck OAKDALE HARROGATE CSO 7 24 96.1
Yorkshire Water River Nidd ABBEY ROAD NO 2 CSO 15 23 85.1
Yorkshire Water River Nidd WATERSIDE 49 CSO 12 17 70.8
Yorkshire Water Culverted Star Beck FOREST LANE CSO 10 11 99.7
Yorkshire Water Rud Beck Via A Public Sewer WEDDERBURN SCHOOL CSO 4 8 99.9
Yorkshire Water River Nidd CRAGG TOP COMBINED SEWER OVERFLOW 15 5 99.3
Yorkshire Water Caulkhill Beck UPPER DUNSFORTH CSO 2 4 70.7
Yorkshire Water Frogmire Dyke BOROUGHBRIDGE ROAD CSO 10 4 99.9
Yorkshire Water Oak Beck Via A Public Sewer 109 SKIPTON ROAD CSO 9 3 100
Yorkshire Water Rud Beck Via Public Sewer HOOKSTONE GRANGE WAY CSO 4 2 99.9
Yorkshire Water Oak Beck Via Public Sewer UNITY GROVE CSO 5 2 99.2
Yorkshire Water Oak Beck Via Public Sewer 35 SKIPTON ROAD CSO 3 1 71.8
Yorkshire Water Ripley Beck RIPLEY NO2 CSO 2 1 83.8
Yorkshire Water Crimple Beck Or River Crimple BLACK SWAN CSO 4 1 100
Yorkshire Water Culverted Rud Beck/Publicsewer HOOKSTONE DRIVE NO 2 CSO 1 1 63.7
Yorkshire Water Hoohstone Beck STRAY REIN CSO 1 0 99.4
Yorkshire Water Oak Beck Via A Public Sewer 33 SKIPTON ROAD CSO 1 0 31.9
Yorkshire Water Low Commondrain ALDBOROUGH SSO 2 0 94.5
Yorkshire Water Clvrt Bilton Beck HAMBLETON ROAD CSO 1 0 73
Yorkshire Water Rud Beck Via A Public Sewer GREENFIELDS ROAD NO3 CSO 1 0 93.9
Yorkshire Water Oak Beck Via A Public Sewer 83 SKIPTON ROAD CSO 1 0 100
Yorkshire Water Crimple Beck FULWITHMILL FARM N0 2 CSO 0 0 99.9
Yorkshire Water River Nidd ABBEY MILL CSO 0 0 53.2
Yorkshire Water River Nidd VILLAGE GREEN CSO 0 0 99.9
Yorkshire Water River Tutt NEW ROW COMBINED SEWER OVERFLOW 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.