Alyn - Hope To Dee at Caergwrle - Rhyddyn Hill Road 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
169.7 hours | 0.64
The declared body of water receiving this discharge is the "Alyn - Hope To Dee"
This station has discharged sewage 73 time(s).
The station has discharged for a total of 169.7 hour(s).
This is 0.64% of the time which we have data for.
In total: 7 day(s)* of elapsed time.
95.3 | 1226.4 hours
This monitor has been operational for 95.3% of its total time we have data for.
There are 1226.4 hours unaccounted for due to downtime of the monitor.
The worst year in our records for the "Caergwrle - Rhyddyn Hill Road CSO" is 2021, discharging sewage for 102.7 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
46.7 hours | 0.53
The declared body of water receiving this discharge is the "Alyn - Hope To Dee"
This station discharged sewage 24 time(s) during 2023.
The station discharged for a total of 46.7 hour(s).
This is around 1 day(s)* or 0.53% of the year.
88.5 | 1003 hours
This monitor was operational for 88.5% of the year.
Leaving 1003 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:
Comms 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 # | CM0116801 |
| Secondary Permit # | CM0116801 |
2022
20.2 hours | 0.23
The declared body of water receiving this discharge is the "Alyn - Hope To Dee"
This station discharged sewage 18 time(s) during 2022.
The station discharged for a total of 20.2 hour(s).
This is around 0 day(s)* or 0.23% of the year.
99.8 | 15.7 hours
This monitor was operational for 99.8% of the year.
Leaving 15.7 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 # | CM0116801 |
| Secondary Permit # | CM0116801 |
2021
102.7 hours | 1.17
The declared body of water receiving this discharge is the "Alyn - Hope To Confluence With Dee"
This station discharged sewage 31 time(s) during 2021.
The station discharged for a total of 102.7 hour(s).
This is around 4 day(s)* or 1.17% of the year.
99.3 | 60.4 hours
This monitor was operational for 99.3% of the year.
Leaving 60.4 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 # | CM0116801 |
| Secondary Permit # | CM0116801 |
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Local Information
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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