This is a sewage discharge monitoring station, which is usually a type of Event Duration Monitor (EDM). These stations themselves are designed to mitigate the impact of heavy rainfall by discharging, under permitted conditions, any overflow into a water body. They are often actively discharging during flood events. This page presents the data acquired by the monitoring system for this discharge station.
Sewage Reports that include this Station
Operational Summary - 2022-2023
River Calder | 204 Spills | 2455.7 hours | 14.01
The declared body of water receiving this discharge is the "River Calder" This station has discharged sewage 204 time(s). The station has discharged for a total of 2455.7 hour(s). This is 14.01% of the time which we have data for. In total: 102 day(s)* of elapsed time.
97.5 | 438 hours This monitor has been operational for 97.5% of its total time we have data for. There are 438 hours unaccounted for due to downtime of the monitor.
The worst year in our records for the "Horbury STW" is 2023, discharging sewage for 2229 hours of the year.
Uptimes below 90% (red line) should be accompanied by a reason
*This is total time in days, not individual days.
Yearly Summary
Most Recent Year - 2023
River Calder | 151 Spills | 2229 hours | 25.44 The declared body of water receiving this discharge is the "River Calder" This station discharged sewage 151 time(s) during 2023. The station discharged for a total of 2229 hour(s). This is around 92 day(s)* or 25.44% of the year. The following reasons have been given for the high spill frequency in 2023: Not Asset Maintenance - Hydraulic Capacity The following comments have been given on the station operators intended actions: N/A - Hydraulic Capacity
96.9 | 264.5 hours This monitor was operational for 96.9% of the year. Leaving 264.5 hours unaccounted for in the data.
*This is total time in days, not individual days of the year.
Permit & Governance
Attribute
Value
Governing Body
The Environment Agency
Operator
Yorkshire Water
Primary Permit #
C4107
Secondary Permit #
C4107 A2
2022
River Calder | 53 Spills | 226.7 hours | 2.58 The declared body of water receiving this discharge is the "River Calder" This station discharged sewage 53 time(s) during 2022. The station discharged for a total of 226.7 hour(s). This is around 9 day(s)* or 2.58% of the year. The following reasons have been given for the high spill frequency in 2022: Not Asset Maintenance - Hydraulic Capacity The following comments have been given on the station operators intended actions: N/A - Hydraulic Capacity
99.9 | 6.1 hours This monitor was operational for 99.9% of the year. Leaving 6.1 hours unaccounted for in the data.
*This is total time in days, not individual days of the year.
Permit & Governance
Attribute
Value
Governing Body
The Environment Agency
Operator
Yorkshire Water
Primary Permit #
C4107
Secondary Permit #
C4107 A2
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Local Information
Nearby Flood Warnings
None
Nearby Alert Areas
River Calder at Horbury - The Strands
River Calder at Wakefield - Thornes and Calder Vale
River Calder at Ravensthorpe
River Calder at Horbury Junction
River Calder at Mirfield - Calder View to Steanard Lane
River Calder at Dewsbury
River Calder at Healey and Horbury Bridge
River Calder at Dewsbury - Lodge Farm and Sands Mill
Station overseen (meaning either provided, or regulated) by: The Environment Agency The information displayed here is used under license. We are not affiliated with any governing, or other, bodies. Nor do they necessarily endorse us, or us them. Please note that FloodMapper does not verify or check the accuracy of the data provided by third parties. The data is used as received from the source. Any underlying errors, inconsistencies, or inaccuracies in the original data will be reflected in the information presented on our platform. Users are advised to exercise their own judgment and caution when using the data for decision-making purposes. Information about our data sources and licenses can be found
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