Twymyn - Lower at Commins Coch Pumping Station 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
8671.5 hours | 32.99
The declared body of water receiving this discharge is the "Twymyn - Lower"
This station has discharged sewage 394 time(s).
The station has discharged for a total of 8671.5 hour(s).
This is 32.99% of the time which we have data for.
In total: 361 day(s)* of elapsed time.
84 | 4204.8 hours
This monitor has been operational for 84% of its total time we have data for.
There are 4204.8 hours unaccounted for due to downtime of the monitor.
The worst year in our records for the "Commins Coch Pumping Station CSO" is 2023, discharging sewage for 4422.7 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
4422.7 hours | 50.48
The declared body of water receiving this discharge is the "Twymyn - Lower"
This station discharged sewage 195 time(s) during 2023.
The station discharged for a total of 4422.7 hour(s).
This is around 184 day(s)* or 50.48% of the year.
99.9 | 6.1 hours
This monitor was operational for 99.9% of the year.
Leaving 6.1 hours unaccounted for in the data.
*This is total time in days, not individual days of the year.
Permit & Governance
| Attribute | Value |
|---|---|
| Governing Body | Natural Resources Wales |
| Operator | Dwr Cymru Welsh Water |
| Primary Permit # | CG0087402 |
| Secondary Permit # | CG0087402 |
2022
Note: Data is potentially unreliable in 2022
Due to high unavailability of the monitor
Twymyn - Lower | 67 Spills | Due to high unavailability of the monitor
1458.5 hours | 16.64
The declared body of water receiving this discharge is the "Twymyn - Lower"
This station discharged sewage 67 time(s) during 2022.
The station discharged for a total of 1458.5 hour(s).
This is around 60 day(s)* or 16.64% of the year.
67.9 | 2810.2 hours
This monitor was operational for 67.9% of the year.
Leaving 2810.2 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 2022:
Sensor Failure / Issue
*This is total time in days, not individual days of the year.
Permit & Governance
| Attribute | Value |
|---|---|
| Governing Body | Natural Resources Wales |
| Operator | Dwr Cymru Welsh Water |
| Primary Permit # | CG0087402 |
| Secondary Permit # | CG0087402 |
2021
2790.2 hours | 31.85
This station discharged sewage 132 time(s) during 2021.
The station discharged for a total of 2790.2 hour(s).
This is around 116 day(s)* or 31.85% of the year.
86.5 | 1176.4 hours
This monitor was operational for 86.5% of the year.
Leaving 1176.4 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 2021:
Data Unreliable From 13/11 To 31/12/2021. Due To Static Telemetry Signal. Instrumentation Task Escalated Through Business As Usual For Instrumentation Defect.
*This is total time in days, not individual days of the year.
Permit & Governance
| Attribute | Value |
|---|---|
| Governing Body | Natural Resources Wales |
| Operator | Dwr Cymru Welsh Water |
| Primary Permit # | CG0087402 |
| Secondary Permit # | CG0087402 |
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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
None
Nearby Stations
No nearby stations
Nearby Sewage Discharge Stations
No nearby stations
Station Data Information
Station overseen (meaning either provided, or regulated) by: Natural Resources Wales
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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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