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River Calder And Hebble Brook at Halifax Copley STW

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.
Operational Summary - 2022-2023
River Calder And Hebble Brook | 167 Spills |
2464 hours | 14.06


The declared body of water receiving this discharge is the "River Calder And Hebble Brook"
This station has discharged sewage 167 time(s).
The station has discharged for a total of 2464 hour(s).
This is 14.06% of the time which we have data for.
In total: 102 day(s)* of elapsed time.

99 | 175.2 hours
This monitor has been operational for 99% of its total time we have data for.
There are 175.2 hours unaccounted for due to downtime of the monitor.


The worst year in our records for the "Halifax Copley STW" is 2023, discharging sewage for 1856.7 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 And Hebble Brook | 109 Spills |
1856.7 hours | 21.19

The declared body of water receiving this discharge is the "River Calder And Hebble Brook"
This station discharged sewage 109 time(s) during 2023.
The station discharged for a total of 1856.7 hour(s).
This is around 77 day(s)* or 21.19% 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

99.9 | 4.3 hours
This monitor was operational for 99.9% of the year.
Leaving 4.3 hours unaccounted for in the data.


*This is total time in days, not individual days of the year.

Permit & Governance

AttributeValue
Governing BodyThe Environment Agency
OperatorYorkshire Water
Primary Permit #WRA7510
Secondary Permit #WRA7510 A2

2022
River Calder And Hebble Brook | 58 Spills |
607.2 hours | 6.93

The declared body of water receiving this discharge is the "River Calder And Hebble Brook"
This station discharged sewage 58 time(s) during 2022.
The station discharged for a total of 607.2 hour(s).
This is around 25 day(s)* or 6.93% of the year.

99.7 | 20.1 hours
This monitor was operational for 99.7% of the year.
Leaving 20.1 hours unaccounted for in the data.


*This is total time in days, not individual days of the year.

Permit & Governance

AttributeValue
Governing BodyThe Environment Agency
OperatorYorkshire Water
Primary Permit #WRA7510
Secondary Permit #WRA7510 A2


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Operator comments are presented, unedited, as they were received by us and do not reflect our views or position

Local Information
Nearby Flood Warnings
None
Nearby Alert Areas
No flood warning icon

River Calder at Copley


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River Calder between Sowerby Bridge and Copley


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River Calder at Elland - North Dean Business Park to Park Road


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River Calder at Brighouse


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River Calder at Brighouse - Brookfoot Mills


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River Calder at Bradley


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River Calder at Brighouse - Nun Bank Wood


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River Calder at Brighouse - Brookfoot Business Park


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River Calder at Elland - Saddleworth Road to Lowfields Business Park


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River Calder and River Ryburn at Sowerby Bridge


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River Calder and River Ryburn at Central Sowerby Bridge


Station Data Information
Station overseen (meaning either provided, or regulated) by: The Environment Agency
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