Dee - Alwen To Llyn Tegid at Bala Wastewater Treatment Works
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 - 2023-2023
Dee - Alwen To Llyn Tegid | 80 Spills | 836 hours | 9.54
The declared body of water receiving this discharge is the "Dee - Alwen To Llyn Tegid" This station has discharged sewage 80 time(s). The station has discharged for a total of 836 hour(s). This is 9.54% of the time which we have data for. In total: 34 day(s)* of elapsed time.
99 | 87.6 hours This monitor has been operational for 99% of its total time we have data for. There are 87.6 hours unaccounted for due to downtime of the monitor.
The worst year in our records for the "Bala Wastewater Treatment Works" is 2023, discharging sewage for 836 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
Dee - Alwen To Llyn Tegid | 80 Spills | 836 hours | 9.54 The declared body of water receiving this discharge is the "Dee - Alwen To Llyn Tegid" This station discharged sewage 80 time(s) during 2023. The station discharged for a total of 836 hour(s). This is around 34 day(s)* or 9.54% of the year.
99.9 | 2.6 hours This monitor was operational for 99.9% of the year. Leaving 2.6 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 #
CM0001501
Secondary Permit #
CM0001501
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Local Information
Nearby Flood Warnings
None
Nearby Alert Areas
River Dee communities from Llanuwchllyn to Llangollen