Tributary River Ouzel at Drayton Parslow STW

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 River Ouzel | 137 Spills |
810.5 hours | 3.08

The declared body of water receiving this discharge is the "Tributary River Ouzel"
This station has discharged sewage 137 time(s).
The station has discharged for a total of 810.5 hour(s).
This is 3.08% of the time which we have data for.
In total: 33 day(s)* of elapsed time.

72.3 | 7270.8 hours
This monitor has been operational for 72.3% of its total time we have data for.
There are 7270.8 hours unaccounted for due to downtime of the monitor.

The worst year in our records for the "Drayton Parslow STW" is 2023, discharging sewage for 382.4 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 River Ouzel | 73 Spills |
382.4 hours | 4.36
The declared body of water receiving this discharge is the "Tributary River Ouzel"
This station discharged sewage 73 time(s) during 2023.
The station discharged for a total of 382.4 hour(s).
This is around 15 day(s)* or 4.36% of the year.

The following reasons have been given for the high spill frequency in 2023:
Data Collection - Confirmed Exceptional Weather – Remaining Spills Not Above Soaf Threshold

The following comments have been given on the station operators intended actions:
N/A - Hydraulic Capacity

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	Anglian Water
Primary Permit #	AW1NF1451
Secondary Permit #	AW1NF1451/V001

2022

Tributary River Ouzel | 47 Spills |
139.2 hours | 1.58
The declared body of water receiving this discharge is the "Tributary River Ouzel"
This station discharged sewage 47 time(s) during 2022.
The station discharged for a total of 139.2 hour(s).
This is around 5 day(s)* or 1.58% 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	Anglian Water
Primary Permit #	AW1NF1451
Secondary Permit #	AW1NF1451/V001

2021

Note: Data is potentially unreliable in 2021
Due to high unavailability of the monitor

Tributary River Ouzel | 17 Spills |
288.8 hours | 3.29
The declared body of water receiving this discharge is the "Tributary River Ouzel"
This station discharged sewage 17 time(s) during 2021.
The station discharged for a total of 288.8 hour(s).
This is around 12 day(s)* or 3.29% of the year.

17.8 | 7193.7 hours
This monitor was operational for 17.8% of the year.
Leaving 7193.7 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:
Telemetry Or Data Archiving 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	Anglian Water
Primary Permit #	AW1NF1451
Secondary Permit #	AW1NF1451/V001

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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 Ouzel at Bletchley and Caldecotte

River Ouzel at Simpson, Woolstone, Middleton and Willen

River Ouzel at Leighton Buzzard, Stoke Hammond and Great Brickhill

River Ouzel in Central Bedfordshire, Buckinghamshire and Milton Keynes

Nearby Stations

Bletchley

Milton Keynes

Willen

Nearby Sewage Discharge Stations

Bossington Lane CSO

Great Brickhill STW

Leighton Linslade Water Recycling C

Newton Longville-Whaddon Road Ps

Sewers At Ward Road Bletchley

So Leighton Buzzard

Station Data Information

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