In the period we have records for, 2021-2023, sewage has been discharged in, or near (~3mi.), Trefor 253 time(s). Sewage has been discharged for a total of 2684.2 hour(s). In total: 0.3 year(s)* of elapsed time.
83 The stations, on average, have been monitoring for 83% 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
Un-Named To Caernarfon Bay South Caernarfon Bay South Un-Named To Caernarfon Bay South
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Trefor - Yearly Summary
Summary for Year 2023
192 Spills | 2578.5 hours
In 2023, sewage was discharged in, or near (~3mi.), Trefor 192 time(s). Sewage was discharged for a total of 2578.5 hour(s). In total: 0.29 year(s)* of elapsed time.
99.8 The stations, on average, have been monitoring for 99.8% 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
21 Spills | 8 hours
In 2022, sewage was discharged in, or near (~3mi.), Trefor 21 time(s). Sewage was discharged for a total of 8 hour(s). In total: 0 year(s)* of elapsed time.
49.8 The stations, on average, have been monitoring for 49.8% 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
40 Spills | 97.7 hours
In 2021, sewage was discharged in, or near (~3mi.), Trefor 40 time(s). Sewage was discharged for a total of 97.7 hour(s). In total: 0.01 year(s)* of elapsed time.
99.5 The stations, on average, have been monitoring for 99.5% of the total time in 2021. Stations with missing data have been excluded from this calculation.