This is a sewage discharge monitoring station, which is usually a type of Event Duration Monitor (EDM). These stations themselves are designed to mitigate the impact of heavy rainfall by discharging, under permitted conditions, any overflow into a water body. They are often actively discharging during flood events. This page presents the data acquired by the monitoring system for this discharge station.
Sewage Reports that include this Station
Operational Summary - 2021-2023
Tributary Of The River Arun | 121 Spills | 1469.5 hours | 5.59
The declared body of water receiving this discharge is the "Tributary Of The River Arun" This station has discharged sewage 121 time(s). The station has discharged for a total of 1469.5 hour(s). This is 5.59% of the time which we have data for. In total: 61 day(s)* of elapsed time.
99.3 | 175.2 hours This monitor has been operational for 99.3% of its total time we have data for. There are 175.2 hours unaccounted for due to downtime of the monitor.
The worst year in our records for the "Horsham WWTW" is 2023, discharging sewage for 776.4 hours of the year.
Uptimes below 90% (red line) should be accompanied by a reason
*This is total time in days, not individual days.
Yearly Summary
Most Recent Year - 2023
Tributary Of The River Arun | 58 Spills | 776.4 hours | 8.86 The declared body of water receiving this discharge is the "Tributary Of The River Arun" This station discharged sewage 58 time(s) during 2023. The station discharged for a total of 776.4 hour(s). This is around 32 day(s)* or 8.86% of the year.
99.7 | 26.2 hours This monitor was operational for 99.7% of the year. Leaving 26.2 hours unaccounted for in the data.
*This is total time in days, not individual days of the year.
Permit & Governance
Attribute
Value
Governing Body
The Environment Agency
Operator
Southern Water
Primary Permit #
A00152
Secondary Permit #
COPA/4682
2022
Tributary Of The River Arun | 28 Spills | 329.6 hours | 3.76 The declared body of water receiving this discharge is the "Tributary Of The River Arun" This station discharged sewage 28 time(s) during 2022. The station discharged for a total of 329.6 hour(s). This is around 13 day(s)* or 3.76% of the year.
99.9 | 1.7 hours This monitor was operational for 99.9% of the year. Leaving 1.7 hours unaccounted for in the data.
*This is total time in days, not individual days of the year.
Permit & Governance
Attribute
Value
Governing Body
The Environment Agency
Operator
Southern Water
Primary Permit #
A00152
Secondary Permit #
COPA/4682
2021
Tributary Of The River Arun | 35 Spills | 363.4 hours | 4.14 The declared body of water receiving this discharge is the "Tributary Of The River Arun" This station discharged sewage 35 time(s) during 2021. The station discharged for a total of 363.4 hour(s). This is around 15 day(s)* or 4.14% of the year.
100 | 0 hours This monitor was operational for 100% of the year. Leaving 0 hours unaccounted for in the data.
*This is total time in days, not individual days of the year.
Permit & Governance
Attribute
Value
Governing Body
The Environment Agency
Operator
Southern Water
Primary Permit #
A00152
Secondary Permit #
COPA/4682
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