River Basins Humber Aire and Calder Calder Lower Calder from River Colne to River Chald Mitchell Laithes WWTW
River Calder at Mitchell Laithes WWTW
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.
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 - 2021-2023
1651.7 hours | 6.28
The declared body of water receiving this discharge is the "River Calder"
This station has discharged sewage 97 time(s).
The station has discharged for a total of 1651.7 hour(s).
This is 6.28% of the time which we have data for.
In total: 68 day(s)* of elapsed time.
38.6 | 16118.4 hours
This monitor has been operational for 38.6% of its total time we have data for.
There are 16118.4 hours unaccounted for due to downtime of the monitor.
The worst year in our records for the "Mitchell Laithes WWTW" is 2022, discharging sewage for 1248.7 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
Note: Data is potentially unreliable in 2023
Due to high unavailability of the monitor
River Calder | 0 Spills | Due to high unavailability of the monitor
0 hours | 0
The declared body of water receiving this discharge is the "River Calder"
This station discharged sewage 0 time(s) during 2023.
The station discharged for a total of 0 hour(s).
This is around 0 day(s)* or 0% of the year.
0 | 8760 hours
This monitor was operational for 0% of the year.
Leaving 8760 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 2023:
Sensor Failure / Issue
The following description has been given for downtime related actions intended, or taken, by the operator in 2023:
Scheduled
*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 # | E15 |
| Secondary Permit # | E15 3 |
2022
1248.7 hours | 14.25
The declared body of water receiving this discharge is the "River Calder"
This station discharged sewage 77 time(s) during 2022.
The station discharged for a total of 1248.7 hour(s).
This is around 52 day(s)* or 14.25% 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 | 19.2 hours
This monitor was operational for 99.7% of the year.
Leaving 19.2 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 # | E15 |
| Secondary Permit # | E15 3 |
2021
Note: Data is potentially unreliable in 2021
Due to high unavailability of the monitor
River Calder | 20 Spills | Due to high unavailability of the monitor
403 hours | 4.6
The declared body of water receiving this discharge is the "River Calder"
This station discharged sewage 20 time(s) during 2021.
The station discharged for a total of 403 hour(s).
This is around 16 day(s)* or 4.6% of the year.
17.6 | 7218.2 hours
This monitor was operational for 17.6% of the year.
Leaving 7218.2 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:
Installation Set-Up/Design Issue
The following description has been given for downtime related actions intended, or taken, by the operator in 2021:
Scheduled
*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 # | E15 |
| Secondary Permit # | E15 3 |
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Operator comments are presented, unedited, as they were received by us and do not reflect our views or position
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Station Data Information
Station overseen (meaning either provided, or regulated) by: The Environment Agency
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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
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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