River Dearne at Riverside Close Darfield CSO

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

River Dearne | 55 Spills |
99.5 hours | 0.37

The declared body of water receiving this discharge is the "River Dearne"
This station has discharged sewage 55 time(s).
The station has discharged for a total of 99.5 hour(s).
This is 0.37% of the time which we have data for.
In total: 4 day(s)* of elapsed time.

70.6 | 7708.7 hours
This monitor has been operational for 70.6% of its total time we have data for.
There are 7708.79 hours unaccounted for due to downtime of the monitor.

The worst year in our records for the "Riverside Close Darfield CSO" is 2021, discharging sewage for 56.8 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

River Dearne | 17 Spills |
23.5 hours | 0.26
The declared body of water receiving this discharge is the "River Dearne"
This station discharged sewage 17 time(s) during 2023.
The station discharged for a total of 23.5 hour(s).
This is around 0 day(s)* or 0.26% of the year.

78.6 | 1872 hours
This monitor was operational for 78.6% of the year.
Leaving 1872 hours unaccounted for in the data.
This falls below the 90% threshold where a reason should be given

The following reasons have been given for the downtime in 2023:
Comms Failure / Issue

The following description has been given for downtime related actions intended, or taken, by the operator in 2023:
Resolved - February After Reporting Year

*This is total time in days, not individual days of the year.

Permit & Governance

Attribute	Value
Governing Body	The Environment Agency
Operator	Yorkshire Water
Primary Permit #	WRA9255
Secondary Permit #	WRA9255 A1

2022

Note: Data is potentially unreliable in 2022
Due to high unavailability of the monitor

River Dearne | 11 Spills |
19.2 hours | 0.21
The declared body of water receiving this discharge is the "River Dearne"
This station discharged sewage 11 time(s) during 2022.
The station discharged for a total of 19.2 hour(s).
This is around 0 day(s)* or 0.21% of the year.

52.3 | 4174.1 hours
This monitor was operational for 52.3% of the year.
Leaving 4174.1 hours unaccounted for in the data.
This falls below the 90% threshold where a reason should be given

The following reasons have been given for the downtime in 2022:
Comms Failure / Issue

The following description has been given for downtime related actions intended, or taken, by the operator in 2022:
Scheduled

*This is total time in days, not individual days of the year.

Permit & Governance

Attribute	Value
Governing Body	The Environment Agency
Operator	Yorkshire Water
Primary Permit #	WRA9255
Secondary Permit #	WRA9255 A1

2021

River Dearne | 27 Spills |
56.8 hours | 0.64
The declared body of water receiving this discharge is the "River Dearne"
This station discharged sewage 27 time(s) during 2021.
The station discharged for a total of 56.8 hour(s).
This is around 2 day(s)* or 0.64% of the year.

82.2 | 1559.2 hours
This monitor was operational for 82.2% of the year.
Leaving 1559.2 hours unaccounted for in the data.
This falls below the 90% threshold where a reason should be given

The following reasons have been given for the downtime in 2021:
Comms Failure / Issue

The following description has been given for downtime related actions intended, or taken, by the operator in 2021:
Resolved - November

*This is total time in days, not individual days of the year.

Permit & Governance

Attribute	Value
Governing Body	The Environment Agency
Operator	Yorkshire Water
Primary Permit #	WRA9255
Secondary Permit #	WRA9255 A1

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Operator comments are presented, unedited, as they were received by us and do not reflect our views or position

Local Information

Nearby Flood Warnings

None

Nearby Alert Areas

River Dearne at Burton Grange and Lundwood

River Dearne at Darfield

River Dearne at Little Houghton

Station Data Information

Station overseen (meaning either provided, or regulated) by: The Environment Agency
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