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.
Sewage Reports that include this Station
Operational Summary - 2021-2023
Afon Lwyd - Conf Dowlais Bk To Pont Sadwrn | 252 Spills | 1336.7 hours | 5.08
The declared body of water receiving this discharge is the "Afon Lwyd - Conf Dowlais Bk To Pont Sadwrn" This station has discharged sewage 252 time(s). The station has discharged for a total of 1336.7 hour(s). This is 5.08% of the time which we have data for. In total: 55 day(s)* of elapsed time.
99.3 | 175.2 hours This monitor has been operational for 99.3% of its total time we have data for. There are 175.2 hours unaccounted for due to downtime of the monitor.
The worst year in our records for the "Caerleon WWTW (STW) CSO Caerleon" is 2023, discharging sewage for 543 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
95 Spills | 543 hours | 6.19 This station discharged sewage 95 time(s) during 2023. The station discharged for a total of 543 hour(s). This is around 22 day(s)* or 6.19% of the year.
99.8 | 13.1 hours This monitor was operational for 99.8% of the year. Leaving 13.1 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 #
AB0050001
Secondary Permit #
AB0050001
2022
72 Spills | 303.7 hours | 3.46 This station discharged sewage 72 time(s) during 2022. The station discharged for a total of 303.7 hour(s). This is around 12 day(s)* or 3.46% of the year.
100 | 0 hours This monitor was operational for 100% of the year. Leaving 0 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 #
AB0050001
Secondary Permit #
AB0050001
2021
Afon Lwyd - Conf Dowlais Bk To Pont Sadwrn | 85 Spills | 490 hours | 5.59 The declared body of water receiving this discharge is the "Afon Lwyd - Conf Dowlais Bk To Pont Sadwrn" This station discharged sewage 85 time(s) during 2021. The station discharged for a total of 490 hour(s). This is around 20 day(s)* or 5.59% of the year.
99.9 | 7 hours This monitor was operational for 99.9% of the year. Leaving 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 #
AB0050001
Secondary Permit #
AB0050001
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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
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