In the period we have records for, 2021-2023, sewage has been discharged in, or near (~3mi.), Derwen Fawr 281 time(s). Sewage has been discharged for a total of 3165.7 hour(s). In total: 0.36 year(s)* of elapsed time.
83.2 The stations, on average, have been monitoring for 83.2% 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
Clawdd Bk - Source To Conf R Usk Nant Y Wilcae - Source To Conf Olway Bk Clawdd Bk - Source To Conf R Usk Nant Y Wilcae - Source To Conf Olway Bk
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Derwen Fawr - Yearly Summary
Summary for Year 2023
123 Spills | 1611 hours
In 2023, sewage was discharged in, or near (~3mi.), Derwen Fawr 123 time(s). Sewage was discharged for a total of 1611 hour(s). In total: 0.18 year(s)* of elapsed time.
90.3 The stations, on average, have been monitoring for 90.3% 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
73 Spills | 841 hours
In 2022, sewage was discharged in, or near (~3mi.), Derwen Fawr 73 time(s). Sewage was discharged for a total of 841 hour(s). In total: 0.09 year(s)* of elapsed time.
66.6 The stations, on average, have been monitoring for 66.6% 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
85 Spills | 713.7 hours
In 2021, sewage was discharged in, or near (~3mi.), Derwen Fawr 85 time(s). Sewage was discharged for a total of 713.7 hour(s). In total: 0.08 year(s)* of elapsed time.
92.6 The stations, on average, have been monitoring for 92.6% of the total time in 2021. Stations with missing data have been excluded from this calculation.