River Tonge at Hag End Brow CSO
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
63 hours | 0.23
The declared body of water receiving this discharge is the "River Tonge"
This station has discharged sewage 133 time(s).
The station has discharged for a total of 63 hour(s).
This is 0.23% of the time which we have data for.
In total: 2 day(s)* of elapsed time.
82.6 | 4555.1 hours
This monitor has been operational for 82.6% of its total time we have data for.
There are 4555.19 hours unaccounted for due to downtime of the monitor.
The worst year in our records for the "Hag End Brow CSO" is 2021, discharging sewage for 25.5 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 Tonge | 47 Spills | Due to high unavailability of the monitor
22.6 hours | 0.25
The declared body of water receiving this discharge is the "River Tonge"
This station discharged sewage 47 time(s) during 2023.
The station discharged for a total of 22.6 hour(s).
This is around 0 day(s)* or 0.25% 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
67.6 | 2832.9 hours
This monitor was operational for 67.6% of the year.
Leaving 2832.9 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:
Capital / Maintenance Works Affect Edm Operation
The following description has been given for downtime related actions intended, or taken, by the operator in 2023:
N/A - Ongoing Investigation
*This is total time in days, not individual days of the year.
Permit & Governance
| Attribute | Value |
|---|---|
| Governing Body | The Environment Agency |
| Operator | United Utilities |
| Primary Permit # | 016993783 |
| Secondary Permit # | BOL0111 |
2022
14.8 hours | 0.16
The declared body of water receiving this discharge is the "River Tonge A Tributary Of The River Croal"
This station discharged sewage 38 time(s) during 2022.
The station discharged for a total of 14.8 hour(s).
This is around 0 day(s)* or 0.16% 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
89.3 | 932 hours
This monitor was operational for 89.3% of the year.
Leaving 932 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:
Sensor Failure / Issue
The following description has been given for downtime related actions intended, or taken, by the operator in 2022:
N/A - Ongoing Investigation
*This is total time in days, not individual days of the year.
Permit & Governance
| Attribute | Value |
|---|---|
| Governing Body | The Environment Agency |
| Operator | United Utilities |
| Primary Permit # | 016993783 |
| Secondary Permit # | BOL0111 |
2021
25.5 hours | 0.29
The declared body of water receiving this discharge is the "River Tonge"
This station discharged sewage 48 time(s) during 2021.
The station discharged for a total of 25.5 hour(s).
This is around 1 day(s)* or 0.29% of the year.
The following reasons have been given for the high spill frequency in 2021:
Not Asset Maintenance - Hydraulic Capacity
The following comments have been given on the station operators intended actions:
N/A - Hydraulic Capacity
92 | 700.8 hours
This monitor was operational for 92% of the year.
Leaving 700.8 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 | United Utilities |
| Primary Permit # | 016993783 |
| Secondary Permit # | BOL0111 |
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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
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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