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
51 Spills | 329.1 hours | 1.25
This station has discharged sewage 51 time(s). The station has discharged for a total of 329.1 hour(s). This is 1.25% of the time which we have data for. In total: 13 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 "Mill Road West Chiltington CSO" is 2023, discharging sewage for 193.6 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
25 Spills | 193.6 hours | 2.21 This station discharged sewage 25 time(s) during 2023. The station discharged for a total of 193.6 hour(s). This is around 8 day(s)* or 2.21% of the year.
99.6 | 35 hours This monitor was operational for 99.6% of the year. Leaving 35 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 #
A01509
Secondary Permit #
A.1509/S/07
2022
19 Spills | 111.1 hours | 1.26 This station discharged sewage 19 time(s) during 2022. The station discharged for a total of 111.1 hour(s). This is around 4 day(s)* or 1.26% of the year.
99.7 | 21 hours This monitor was operational for 99.7% of the year. Leaving 21 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 #
A01509
Secondary Permit #
A.1509/S/07
2021
7 Spills | 24.3 hours | 0.27 This station discharged sewage 7 time(s) during 2021. The station discharged for a total of 24.3 hour(s). This is around 1 day(s)* or 0.27% 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 #
A01509
Secondary Permit #
A.1509/S/07
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