In the period we have records for, 2021-2024, sewage has been discharged in, or near (~3mi.), Derril 2123 time(s). Sewage has been discharged for a total of 28593.8 hour(s). In total: 3.26 year(s)* of elapsed time.
76.9 The stations, on average, have been monitoring for 76.9% 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
Coles Stream (S) Derril Water(S) River Deer River Derril (S) River Tamar (S) Trib Of River Deer Trib River Deer (S)
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Derril - Yearly Summary
Summary for Year 2024
593 Spills | 7134 hours
In 2024, sewage was discharged in, or near (~3mi.), Derril 593 time(s). Sewage was discharged for a total of 7134 hour(s). In total: 0.81 year(s)* of elapsed time.
87.4 The stations, on average, have been monitoring for 87.4% of the total time in 2024. 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 2023
665 Spills | 8200.1 hours
In 2023, sewage was discharged in, or near (~3mi.), Derril 665 time(s). Sewage was discharged for a total of 8200.1 hour(s). In total: 0.93 year(s)* of elapsed time.
85.3 The stations, on average, have been monitoring for 85.3% 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
416 Spills | 5742.6 hours
In 2022, sewage was discharged in, or near (~3mi.), Derril 416 time(s). Sewage was discharged for a total of 5742.6 hour(s). In total: 0.65 year(s)* of elapsed time.
92.2 The stations, on average, have been monitoring for 92.2% 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
449 Spills | 7516.9 hours
In 2021, sewage was discharged in, or near (~3mi.), Derril 449 time(s). Sewage was discharged for a total of 7516.9 hour(s). In total: 0.85 year(s)* of elapsed time.
42.8 The stations, on average, have been monitoring for 42.8% of the total time in 2021. Stations with missing data have been excluded from this calculation.