Dee - Upstream Llyn Tegid at The Eagles CSO, Llanwchllyn
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
1672 hours | 6.36
The declared body of water receiving this discharge is the "Dee - Upstream Llyn Tegid"
This station has discharged sewage 177 time(s).
The station has discharged for a total of 1672 hour(s).
This is 6.36% of the time which we have data for.
In total: 69 day(s)* of elapsed time.
98.3 | 438 hours
This monitor has been operational for 98.3% of its total time we have data for.
There are 438 hours unaccounted for due to downtime of the monitor.
The worst year in our records for the "The Eagles CSO, Llanwchllyn" is 2023, discharging sewage for 831 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
831 hours | 9.48
The declared body of water receiving this discharge is the "Dee - Upstream Llyn Tegid"
This station discharged sewage 79 time(s) during 2023.
The station discharged for a total of 831 hour(s).
This is around 34 day(s)* or 9.48% of the year.
98.3 | 141 hours
This monitor was operational for 98.3% of the year.
Leaving 141 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 # | CG0357301 |
| Secondary Permit # | CG0357301 |
2022
514.5 hours | 5.87
The declared body of water receiving this discharge is the "Dee - Upstream Llyn Tegid"
This station discharged sewage 52 time(s) during 2022.
The station discharged for a total of 514.5 hour(s).
This is around 21 day(s)* or 5.87% of the year.
99.1 | 72.7 hours
This monitor was operational for 99.1% of the year.
Leaving 72.7 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 # | CG0357301 |
| Secondary Permit # | CG0357301 |
2021
326.5 hours | 3.72
The declared body of water receiving this discharge is the "Dee - Above Afon Lliw"
This station discharged sewage 46 time(s) during 2021.
The station discharged for a total of 326.5 hour(s).
This is around 13 day(s)* or 3.72% of the year.
98.9 | 94.6 hours
This monitor was operational for 98.9% of the year.
Leaving 94.6 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 # | CG0357301 |
| Secondary Permit # | CG0357301 |
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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 Sewage Discharge Stations
No nearby stations
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