In the period we have records for, 2021-2023, sewage has been discharged in, or near (~3mi.), Derry Hill 618 time(s). Sewage has been discharged for a total of 6207.1 hour(s). In total: 0.7 year(s)* of elapsed time.
79.9 The stations, on average, have been monitoring for 79.9% 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
(S) River Marden River Avon River Avon Via Sws River Marden River Marden(S) Trib Of River Marden(S)
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Derry Hill - Yearly Summary
Summary for Year 2023
315 Spills | 3488 hours
In 2023, sewage was discharged in, or near (~3mi.), Derry Hill 315 time(s). Sewage was discharged for a total of 3488 hour(s). In total: 0.39 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
143 Spills | 453.7 hours
In 2022, sewage was discharged in, or near (~3mi.), Derry Hill 143 time(s). Sewage was discharged for a total of 453.7 hour(s). In total: 0.05 year(s)* of elapsed time.
71.4 The stations, on average, have been monitoring for 71.4% 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
160 Spills | 2265.4 hours
In 2021, sewage was discharged in, or near (~3mi.), Derry Hill 160 time(s). Sewage was discharged for a total of 2265.4 hour(s). In total: 0.25 year(s)* of elapsed time.
68.5 The stations, on average, have been monitoring for 68.5% of the total time in 2021. Stations with missing data have been excluded from this calculation.