In the period we have records for, 2021-2023, sewage has been discharged in, or near (~3mi.), Tretŵr 1007 time(s). Sewage has been discharged for a total of 4846.7 hour(s). In total: 0.55 year(s)* of elapsed time.
85.8 The stations, on average, have been monitoring for 85.8% 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
Nant Cleisfer - Source To Conf R Usk R Usk Conf Afon Crawnon To R Usk Conf Afon Crawnon To Conf Gavenny R Usk Conf Afon Crawnon To Conf Gavenny R
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Tretŵr - Yearly Summary
Summary for Year 2023
317 Spills | 1465.2 hours
In 2023, sewage was discharged in, or near (~3mi.), Tretŵr 317 time(s). Sewage was discharged for a total of 1465.2 hour(s). In total: 0.16 year(s)* of elapsed time.
88.3 The stations, on average, have been monitoring for 88.3% 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
295 Spills | 1162.7 hours
In 2022, sewage was discharged in, or near (~3mi.), Tretŵr 295 time(s). Sewage was discharged for a total of 1162.7 hour(s). In total: 0.13 year(s)* of elapsed time.
77.9 The stations, on average, have been monitoring for 77.9% 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
395 Spills | 2218.7 hours
In 2021, sewage was discharged in, or near (~3mi.), Tretŵr 395 time(s). Sewage was discharged for a total of 2218.7 hour(s). In total: 0.25 year(s)* of elapsed time.
91.3 The stations, on average, have been monitoring for 91.3% of the total time in 2021. Stations with missing data have been excluded from this calculation.