In the period we have records for, 2021-2023, sewage has been discharged in, or near (~3mi.), Treffynnon 1011 time(s). Sewage has been discharged for a total of 7019.7 hour(s). In total: 0.8 year(s)* of elapsed time.
95.6 The stations, on average, have been monitoring for 95.6% of the total time we have data for.
Discharge Volume by Year
Hours and Spills by Year
Uptime Yearly Summary (Average)
Summary of Bodies Receiving Discharge
Greenfield Stream Dee (N. Wales) Dee Estuary Ditch Esturial Waters Of The River Dee Holywell Stream Llanerchymor Gutter Nant Sir Roger (Dee Estuary) River Dee (Tidal) Swinchiard Brook Unnamed Stream Unnamed Tributary Of The River Dee Unnamed Watercourse
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Treffynnon - Yearly Summary
Summary for Year 2023
414 Spills | 4714.2 hours
In 2023, sewage was discharged in, or near (~3mi.), Treffynnon 414 time(s). Sewage was discharged for a total of 4714.2 hour(s). In total: 0.53 year(s)* of elapsed time.
91.6 The stations, on average, have been monitoring for 91.6% of the total time in 2023. Stations with missing data have been excluded from this calculation.
A single station may appear twice when there are multiple individual outlets in the top 3.
Summary for Year 2022
216 Spills | 472.7 hours
In 2022, sewage was discharged in, or near (~3mi.), Treffynnon 216 time(s). Sewage was discharged for a total of 472.7 hour(s). In total: 0.05 year(s)* of elapsed time.
96.2 The stations, on average, have been monitoring for 96.2% of the total time in 2022. Stations with missing data have been excluded from this calculation.
A single station may appear twice when there are multiple individual outlets in the top 3.
Summary for Year 2021
381 Spills | 1832.7 hours
In 2021, sewage was discharged in, or near (~3mi.), Treffynnon 381 time(s). Sewage was discharged for a total of 1832.7 hour(s). In total: 0.2 year(s)* of elapsed time.
98.9 The stations, on average, have been monitoring for 98.9% of the total time in 2021. Stations with missing data have been excluded from this calculation.