River Basins Western Wales Llyn and Eryri Gwyrfai Seiont Gwyrfai - downstream of Cwellyn Llanfaglan WWTW Settled Storm Overflow
Gwyrfai - Downstream Of Cwellyn at Llanfaglan WWTW Settled Storm Overflow
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
1593 hours | 6.06
The declared body of water receiving this discharge is the "Gwyrfai - Downstream Of Cwellyn"
This station has discharged sewage 167 time(s).
The station has discharged for a total of 1593 hour(s).
This is 6.06% of the time which we have data for.
In total: 66 day(s)* of elapsed time.
99 | 262.8 hours
This monitor has been operational for 99% of its total time we have data for.
There are 262.8 hours unaccounted for due to downtime of the monitor.
The worst year in our records for the "Llanfaglan WWTW Settled Storm Overflow" is 2022, discharging sewage for 709.2 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
301.7 hours | 3.44
The declared body of water receiving this discharge is the "Gwyrfai - Downstream Of Cwellyn"
This station discharged sewage 30 time(s) during 2023.
The station discharged for a total of 301.7 hour(s).
This is around 12 day(s)* or 3.44% of the year.
99.1 | 71.8 hours
This monitor was operational for 99.1% of the year.
Leaving 71.8 hours unaccounted for in the data.
*This is total time in days, not individual days of the year.
Permit & Governance
| Attribute | Value |
|---|---|
| Governing Body | Natural Resources Wales |
| Operator | Dwr Cymru Welsh Water |
| Primary Permit # | CG0078102 |
| Secondary Permit # | CG0078102 |
2022
709.2 hours | 8.09
The declared body of water receiving this discharge is the "Gwyrfai - Downstream Of Cwellyn"
This station discharged sewage 74 time(s) during 2022.
The station discharged for a total of 709.2 hour(s).
This is around 29 day(s)* or 8.09% of the year.
99.9 | 5.2 hours
This monitor was operational for 99.9% of the year.
Leaving 5.2 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 # | CG0078102 |
| Secondary Permit # | CG0078102 |
2021
582 hours | 6.64
The declared body of water receiving this discharge is the "Gwyrfai"
This station discharged sewage 63 time(s) during 2021.
The station discharged for a total of 582 hour(s).
This is around 24 day(s)* or 6.64% of the year.
99.9 | 1.7 hours
This monitor was operational for 99.9% of the year.
Leaving 1.7 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 # | CG0078102 |
| Secondary Permit # | CG0078102 |
FloodMapper is not affiliated with this monitoring stations operator(s) or any other entities that may be mentioned on this page.
All trademarks and registered trademarks are the property of their respective owners.
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: Natural Resources Wales
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
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
FloodMapper is an independent site and is not associated with any government bodies (e.g. Environment Agency).
Copyright © FloodMapper 2023-2024.
All Rights Reserved