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 (Tidal) | 76 Spills | 615.5 hours | 3.51
The declared body of water receiving this discharge is the "River Don (Tidal)" This station has discharged sewage 76 time(s). The station has discharged for a total of 615.5 hour(s). This is 3.51% of the time which we have data for. In total: 25 day(s)* of elapsed time.
75.5 | 4292.4 hours This monitor has been operational for 75.5% of its total time we have data for. There are 4292.4 hours unaccounted for due to downtime of the monitor.
The worst year in our records for the "Thorne STW" is 2023, discharging sewage for 347.5 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 (Tidal) | 44 Spills | 347.5 hours | 3.96 The declared body of water receiving this discharge is the "River Don (Tidal)" This station discharged sewage 44 time(s) during 2023. The station discharged for a total of 347.5 hour(s). This is around 14 day(s)* or 3.96% 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
99.5 | 42 hours This monitor was operational for 99.5% of the year. Leaving 42 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 #
3332
Secondary Permit #
3332(SS) A2
2022
Note: Data is potentially unreliable in 2022 Due to high unavailability of the monitor
River Don (Tidal) | 32 Spills | 268 hours | 3.05 The declared body of water receiving this discharge is the "River Don (Tidal)" This station discharged sewage 32 time(s) during 2022. The station discharged for a total of 268 hour(s). This is around 11 day(s)* or 3.05% of the year. The following reasons have been given for the high spill frequency in 2022: Not Asset Maintenance - Hydraulic Capacity The following comments have been given on the station operators intended actions: N/A - Hydraulic Capacity
52.5 | 4153.9 hours This monitor was operational for 52.5% of the year. Leaving 4153.9 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: Sensor 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 #
3332
Secondary Permit #
3332(SS) A2
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Local Information
Nearby Flood Warnings
None
Nearby Alert Areas
River Don at Fosterhouses and Wormley Hill
River Don at Braithwaite
River Don at Marshgate Retail Park, Crimpsall
River Don at Thorne
River Aire, Don and Dutch River at East Cowick and Lidgate
River Don and River Went at Pollington, Eskholme and Pincheon Green
River Don and Dutch River from Moorends to Rawcliffe Bridge
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