In the period we have records for, 2021-2023, sewage has been discharged in, or near (~3mi.), Harefield 401 time(s). Sewage has been discharged for a total of 6497.4 hour(s). In total: 0.74 year(s)* of elapsed time.
97.9 The stations, on average, have been monitoring for 97.9% 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
Misbourne The Guc (Harefield Reach)
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Harefield - Yearly Summary
Summary for Year 2023
172 Spills | 2955.5 hours
In 2023, sewage was discharged in, or near (~3mi.), Harefield 172 time(s). Sewage was discharged for a total of 2955.5 hour(s). In total: 0.33 year(s)* of elapsed time.
98.8 The stations, on average, have been monitoring for 98.8% 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
89 Spills | 1410.1 hours
In 2022, sewage was discharged in, or near (~3mi.), Harefield 89 time(s). Sewage was discharged for a total of 1410.1 hour(s). In total: 0.16 year(s)* of elapsed time.
99.7 The stations, on average, have been monitoring for 99.7% 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
140 Spills | 2131.8 hours
In 2021, sewage was discharged in, or near (~3mi.), Harefield 140 time(s). Sewage was discharged for a total of 2131.8 hour(s). In total: 0.24 year(s)* of elapsed time.
95.1 The stations, on average, have been monitoring for 95.1% of the total time in 2021. Stations with missing data have been excluded from this calculation.