River Calder at Ashenhurst Road

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 | 129 Spills |
156.8 hours | 0.59

The declared body of water receiving this discharge is the "River Calder"
This station has discharged sewage 129 time(s).
The station has discharged for a total of 156.8 hour(s).
This is 0.59% of the time which we have data for.
In total: 6 day(s)* of elapsed time.

82.3 | 4642.8 hours
This monitor has been operational for 82.3% of its total time we have data for.
There are 4642.8 hours unaccounted for due to downtime of the monitor.

The worst year in our records for the "Ashenhurst Road" is 2023, discharging sewage for 85.2 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 | 65 Spills |
85.2 hours | 0.97
The declared body of water receiving this discharge is the "River Calder"
This station discharged sewage 65 time(s) during 2023.
The station discharged for a total of 85.2 hour(s).
This is around 3 day(s)* or 0.97% of the year.

The following reasons have been given for the high spill frequency in 2023:
Data Collection - Confirmed Exceptional Weather – Remaining Spills Not Above Soaf Threshold

97.8 | 188.3 hours
This monitor was operational for 97.8% of the year.
Leaving 188.3 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 #	WADC682
Secondary Permit #	WADC682 A1

2022

Note: Data is potentially unreliable in 2022
Due to high unavailability of the monitor

River Calder | 47 Spills |
50.7 hours | 0.57
The declared body of water receiving this discharge is the "River Calder"
This station discharged sewage 47 time(s) during 2022.
The station discharged for a total of 50.7 hour(s).
This is around 2 day(s)* or 0.57% of the year.

73.8 | 2292.4 hours
This monitor was operational for 73.8% of the year.
Leaving 2292.4 hours unaccounted for in the data.
This falls below the 90% threshold where a reason should be given

The following reasons have been given for the downtime in 2022:
Comms Failure / Issue

The following description has been given for downtime related actions intended, or taken, by the operator in 2022:
Resolved - Aug

*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 #	WADC682
Secondary Permit #	WADC682 A1

2021

River Calder | 17 Spills |
20.8 hours | 0.23
The declared body of water receiving this discharge is the "River Calder"
This station discharged sewage 17 time(s) during 2021.
The station discharged for a total of 20.8 hour(s).
This is around 0 day(s)* or 0.23% of the year.

77.4 | 1979.7 hours
This monitor was operational for 77.4% of the year.
Leaving 1979.7 hours unaccounted for in the data.
This falls below the 90% threshold where a reason should be given

The following reasons have been given for the downtime in 2021:
Telemetry Or Data Archiving Failure / Issue

The following description has been given for downtime related actions intended, or taken, by the operator in 2021:
Resolved - Feburary

*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 #	WADC682
Secondary Permit #	WADC682 A1

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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

River Calder at Todmorden - Harley Wood

River Calder at Cornholme, Lydgate and Todmorden High School

River Calder at Todmorden from the Cricket Ground to the Railway Bridge

River Calder at Todmorden - Patmos Burnley Road

Nearby Stations

Portsmouth Lennox Road

Nearby Sewage Discharge Stations

Alma Road CSO

Burnley Road Cornholme CSO

Station Data Information

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