River Basins Western Wales Llyn and Eryri Dwyryd Prysor - upstream Llyn Trawsfynydd CSO At Trawsfynydd Near Bron Gwyndy
Prysor - Upstream Llyn Trawsfynydd at CSO At Trawsfynydd Near Bron Gwyndy
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
49 hours | 0.18
The declared body of water receiving this discharge is the "Prysor - Upstream Llyn Trawsfynydd"
This station has discharged sewage 50 time(s).
The station has discharged for a total of 49 hour(s).
This is 0.18% of the time which we have data for.
In total: 2 day(s)* of elapsed time.
89.3 | 2803.2 hours
This monitor has been operational for 89.3% of its total time we have data for.
There are 2803.2 hours unaccounted for due to downtime of the monitor.
The worst year in our records for the "CSO At Trawsfynydd Near Bron Gwyndy" is 2021, discharging sewage for 19 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
13.7 hours | 0.15
The declared body of water receiving this discharge is the "Prysor - Upstream Llyn Trawsfynydd"
This station discharged sewage 18 time(s) during 2023.
The station discharged for a total of 13.7 hour(s).
This is around 0 day(s)* or 0.15% of the year.
91.1 | 779.6 hours
This monitor was operational for 91.1% of the year.
Leaving 779.6 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 # | CG0357501 |
| Secondary Permit # | CG0357501 |
2022
16.2 hours | 0.18
The declared body of water receiving this discharge is the "Prysor - Upstream Llyn Trawsfynydd"
This station discharged sewage 14 time(s) during 2022.
The station discharged for a total of 16.2 hour(s).
This is around 0 day(s)* or 0.18% of the year.
78.8 | 1852.7 hours
This monitor was operational for 78.8% of the year.
Leaving 1852.7 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:
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 # | CG0357501 |
| Secondary Permit # | CG0357501 |
2021
19 hours | 0.21
The declared body of water receiving this discharge is the "Prysor"
This station discharged sewage 18 time(s) during 2021.
The station discharged for a total of 19 hour(s).
This is around 0 day(s)* or 0.21% of the year.
99.3 | 61.3 hours
This monitor was operational for 99.3% of the year.
Leaving 61.3 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 # | CG0357501 |
| Secondary Permit # | CG0357501 |
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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
CSO At Trawsfynydd WWTW
CSO Rear Of Prysor Filling Station Traw
Trawsfynydd Maesgwindy Est CSO
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