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 - 2021-2023
River Calder | 222 Spills | 226.9 hours | 0.86
The declared body of water receiving this discharge is the "River Calder" This station has discharged sewage 222 time(s). The station has discharged for a total of 226.9 hour(s). This is 0.86% of the time which we have data for. In total: 9 day(s)* of elapsed time.
97 | 788.4 hours This monitor has been operational for 97% of its total time we have data for. There are 788.4 hours unaccounted for due to downtime of the monitor.
The worst year in our records for the "Sowerby New Road CSO" is 2023, discharging sewage for 87.1 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 | 82 Spills | 87.1 hours | 0.99 The declared body of water receiving this discharge is the "River Calder" This station discharged sewage 82 time(s) during 2023. The station discharged for a total of 87.1 hour(s). This is around 3 day(s)* or 0.99% 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
92.8 | 626.3 hours This monitor was operational for 92.8% of the year. Leaving 626.3 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 #
1061
Secondary Permit #
1061 A1
2022
River Calder | 68 Spills | 66.4 hours | 0.75 The declared body of water receiving this discharge is the "River Calder" This station discharged sewage 68 time(s) during 2022. The station discharged for a total of 66.4 hour(s). This is around 2 day(s)* or 0.75% 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
99.7 | 23.6 hours This monitor was operational for 99.7% of the year. Leaving 23.6 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 #
1061
Secondary Permit #
1061 A1
2021
River Calder | 72 Spills | 73.4 hours | 0.83 The declared body of water receiving this discharge is the "River Calder" This station discharged sewage 72 time(s) during 2021. The station discharged for a total of 73.4 hour(s). This is around 3 day(s)* or 0.83% of the year.
100 | 0 hours This monitor was operational for 100% of the year. Leaving 0 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 #
1061
Secondary Permit #
1061 A1
FloodMapper is not affiliated with this monitoring stations operator(s) or any other entities that may be mentioned on this page. All trademarks and registered trademarks are the property of their respective owners. Operator comments are presented, unedited, as they were received by us and do not reflect our views or position
Local Information
Nearby Flood Warnings
Upper River Calder catchment
Nearby Alert Areas
River Calder at Central Mytholmroyd
River Calder and Hebden Water at Hebden Bridge
River Calder at Hebden Bridge - Mytholm and Hebble End
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
FloodMapper is an independent site and is not associated with any government bodies (e.g. Environment Agency).