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 - 2022-2023
River Don | 103 Spills | 951.7 hours | 5.43
The declared body of water receiving this discharge is the "River Don" This station has discharged sewage 103 time(s). The station has discharged for a total of 951.7 hour(s). This is 5.43% of the time which we have data for. In total: 39 day(s)* of elapsed time.
94.5 | 963.6 hours This monitor has been operational for 94.5% of its total time we have data for. There are 963.6 hours unaccounted for due to downtime of the monitor.
The worst year in our records for the "Denaby No 2 STW" is 2023, discharging sewage for 808.7 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 Don | 66 Spills | 808.7 hours | 9.23 The declared body of water receiving this discharge is the "River Don" This station discharged sewage 66 time(s) during 2023. The station discharged for a total of 808.7 hour(s). This is around 33 day(s)* or 9.23% of the year. The following reasons have been given for the high spill frequency in 2023: Not Asset Maintenance - Hydraulic Capacity The following comments have been given on the station operators intended actions: N/A - Hydraulic Capacity
99.9 | 4.3 hours This monitor was operational for 99.9% of the year. Leaving 4.3 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
Yorkshire Water
Primary Permit #
E728(SS)
Secondary Permit #
E728(SS) A2
2022
River Don | 37 Spills | 143 hours | 1.63 The declared body of water receiving this discharge is the "River Don" This station discharged sewage 37 time(s) during 2022. The station discharged for a total of 143 hour(s). This is around 5 day(s)* or 1.63% of the year.
90.1 | 861.1 hours This monitor was operational for 90.1% of the year. Leaving 861.1 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
Yorkshire Water
Primary Permit #
E728(SS)
Secondary Permit #
E728(SS) A2
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Local Information
Nearby Flood Warnings
None
Nearby Alert Areas
River Don at Kilnhurst
River Don at Swinton Bridge and Mexborough
River Don at Rotherham - Northfield, St Ann's Parkgate and Retail World
River Don at New York
River Don at Old Denaby
River Don at Rotherham Central
Middle River Don catchment
River Don at Kilnhurst - Beighton Road, Springfield Road and Wharf Road
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