Top of the Poops | Constituency Sewage Map

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View Annual Sewage Data

You're looking at the totals that we have calculated for sewage in Leeds South so far for 2026. It is an estimate, based on very poor quality live data from the Water Companies. The water companies report their sewage to the Environment Agency every year in April. You can see the last reported year in the other page

What's a potential overflow? If the CSO goes 'Offline' while its Overflowing, we don't know if it stopped overflowing until we get a 'Stop' event.

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Constituencies near Leeds South

Company	Site Name	Receiving Waterway	Overflow Days	Total Duration (hours)	Offline/Potential Pollution
Yorkshire Water	KNOSTROP/H LEVEL STW/3XDWF OVERFLOW	Wyke Beck And River Aire	38	449h 24m	-
Yorkshire Water	WIDE LANE WOODLANDS/2 CSO	Mill Shaw Beck	23	160h 14m	-
Yorkshire Water	WESTBURY PLACE/CSO	Balm Beck	19	160h 11m	6 h
Yorkshire Water	KNOSTROP/L LEVEL STW/6XDWF OVERFLOW	Wyke Beck And River Aire	15	142h 48m	0 h
Yorkshire Water	KNOSTROP/H LEVEL STW/6XDWF OVERFLOW	Wyke Beck And River Aire	19	134h 26m	-
Yorkshire Water	KNOSTROP/COLTON CSO	Wyke Beck	8	63h 58m	-
Yorkshire Water	MIDDLETON GROVE/CSO	Aire And Calder Navigation	21	41h 56m	9 h
Yorkshire Water	SHANNON STREET/CSO	Lady Beck	13	29h 48m	-
Yorkshire Water	CARTMELL DRIVE/CSO	Wyke Beck	7	19h 55m	-
Yorkshire Water	LOWFIELDS ROAD/CSO	Wortley Beck Culverted	8	11h 5m	-
Yorkshire Water	KNOSTROP/L LEVEL STW/3XDWF OVERFLOW	Wyke Beck And River Aire	12	10h	-
Yorkshire Water	GLOBE ROAD/CSO	Hol Beck	2	9h 50m	28 h
Yorkshire Water	ST PAULS STREET/CSO	River Aire	7	9h 3m	-
Yorkshire Water	STOURTON/CSO	Stourton Beck	6	8h 26m	50 h
Yorkshire Water	MILLSHAW/NO 2 CSO	Mill Shaw Beck	4	6h 29m	463 h
Yorkshire Water	JACK LANE/CSO	Aire And Calder Navigation	4	5h 21m	-
Yorkshire Water	OLD RUN ROAD/CSO	Aire And Calder Navigation	6	4h 48m	7 h
Yorkshire Water	WORTLEY VALLEY/CSO	Wortley Beck Pumped Outlet	1	2h 54m	-
Yorkshire Water	WESTLAND ROAD/CSO	Aire And Calder Navigation	2	0h 27m	-
Yorkshire Water	VICTORIA AVENUE/NO 2 CSO	Wyke Beck	1	0h 15m	-
Yorkshire Water	LUCY AVENUE/CSO	Deane Dike	1	0h 4m	-
Yorkshire Water	CITY SQUARE/CSO	River Aire	0	0h	3,299 h
Yorkshire Water	BRIGGATE/NO 2 CSO	River Aire	0	0h	-
Yorkshire Water	THE WELLINGTON/CSO	Aire And Calder Navigation	0	0h	-
Yorkshire Water	HALTON DEAN TIP/CSO	Dean Dyke	0	0h	3,299 h
Yorkshire Water	STOCKS HILL/CSO	Hol Beck	0	0h	3,299 h
Yorkshire Water	MEADOW ROAD/CSO	Aire And Calder Navigation	0	0h	1,285 h
Yorkshire Water	SUSSEX AVENUE/CSO	Aire And Calder Navigation	0	0h	-
Yorkshire Water	THORPE ROAD/CSO	Throstle Carr Beck	0	0h	-
Yorkshire Water	EASTGATE LEEDS/NO 2 CSO	Lady Beck	0	0h	-
Yorkshire Water	WESTBURY GROVE/CSO	Tbc When Permit Issued	0	0h	2,787 h

Company

Site Name

Receiving Waterway

Overflow Days

Total Duration (hours)

Offline/Potential Pollution

Yorkshire Water

KNOSTROP/H LEVEL STW/3XDWF OVERFLOW

Wyke Beck And River Aire

449h 24m

Yorkshire Water

WIDE LANE WOODLANDS/2 CSO