Storm overflow register · 2025 annual return

Yorkshire Water storm overflows, 2025

Yorkshire Water reported 2,187 storm overflows in England for 2025. Together they recorded 51,431 spills over 285,931 hours, an average of 23.5 spills per overflow against 20.4 across England. That ranks 8 of 10 companies, where 1 is the fewest spills per overflow. Counting the same overflows in both years, spills were down 25% on 2024.

291 overflows did not spill · 196 spilled more than 60 times · 1,981 had monitors working for 90% of the year or more · 283 sewage treatment works with overflows

Hours spilling by month, 2025

025k50k75k100kJan 2025: 83,826 hours spillingJanFeb 2025: 5,531 hours spillingFebMar 2025: 3,935 hours spillingMarApr 2025: 545 hours spillingAprMay 2025: 1,606 hours spillingMayJun 2025: 1,734 hours spillingJunJul 2025: 7,048 hours spillingJulAug 2025: 729 hours spillingAugSep 2025: 20,226 hours spillingSepOct 2025: 12,651 hours spillingOctNov 2025: 64,756 hours spillingNovDec 2025: 83,310 hours spillingDec
Hours spilling, all Yorkshire Water overflows, from the start/stop records. Spills running across a month end are split between the months.

All Yorkshire Water storm overflows

Sorted by hours spilling. Open an overflow for its permit, location, reasons for high spills and improvement status.

OverflowDischarges toSpills 2025Hours 2025Spills vs 2024Monitor uptime
Fulwithmill Farm N0 2 CSO
Overflow on sewer network
Company site name
FULWITHMILL FARM/NO 2 CSO
EA ID / permit
YWS00239 · 27/21/0144
Outlet location
SE3176652688 (OS grid reference) · View on Apple Maps
WFD catchment
Crimple Beck from Source to Park Beck (GB104027063741)
2024 spills / hours
29 / 137
Long-term average
8.8 spills a year (monitored since 2020)
Investigation
Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 113 hours spilling →
Crimple Beck 24 113 down 17% 96%
Sherburn in Elmet STW
Storm tank at sewage works
Sewage works
Sherburn In Elmet
Company site name
SHERBURN IN ELMET/STW
EA ID / permit
YWS00388 · 27/24/0162
Outlet location
SE5292033420 (OS grid reference) · View on Apple Maps
WFD catchment
Carr Dike from Green Dike to Selby Dam (GB104027063610)
2024 spills / hours
33 / 163
Long-term average
23.5 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 113 hours spilling →
Upper Fox Drain 22 113 down 33% 93%
Leyburn Road Sheffield NO2 CSO
Overflow on sewer network
Company site name
LEYBURN RD SHEFFLD/2 CSO
EA ID / permit
YWS01812 · WRA8500
Outlet location
SK3459384631 (OS grid reference) · View on Apple Maps
WFD catchment
River Sheaf from Source to River Porter (GB104027057750)
2024 spills / hours
41 / 116
Long-term average
36.2 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 113 hours spilling →
River Sheaf 30 113 down 27% 100%
Pateley Bridge STW
Inlet overflow at sewage works
Sewage works
Pateley Bridge
Company site name
PATELEY BRIDGE/STW
EA ID / permit
YWS00226 · 27/21/0088
Outlet location
SE1768064070 (OS grid reference) · View on Apple Maps
WFD catchment
Nidd from Ashfoldside Beck to Birstwith (GB104027068295)
2024 spills / hours
7 / 17
Long-term average
37.8 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Bathing Water and/or Shellfish Water investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 113 hours spilling →
River Nidd 15 113 up 114% 100%
Pickering Sewage Treatment Works
Storm tank at sewage works
Sewage works
Pickering
Company site name
PICKERING/STW/3XDWF OVERFLOW
EA ID / permit
YWS00481 · 27/25/0075
Outlet location
SE7746083680 (OS grid reference) · View on Apple Maps
WFD catchment
Costa Beck from Source to Pickering Beck (GB104027068480)
2024 spills / hours
47 / 256
Long-term average
64.7 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 113 hours spilling →
Costa Beck 33 113 down 30% 100%
Hemingbrough Wpc Works
Storm tank at sewage works
Sewage works
Hemingbrough Wpc Works
Company site name
HEMINGBROUGH/NO 2 STW
EA ID / permit
YWS00390 · 27/24/0168
Outlet location
SE6689030040 (OS grid reference) · View on Apple Maps
WFD catchment
Ouse from R Wharfe to Upper Humber (GB104027064270)
2024 spills / hours
26 / 121
Long-term average
23.3 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 113 hours spilling →
River Ouse (Tidal) 26 113 no change 100%
Lee Lane STW
Inlet overflow at sewage works
Sewage works
Lee Lane
Company site name
LEE LANE/STW
EA ID / permit
YWS00894 · E18
Outlet location
SE0971027440 (OS grid reference) · View on Apple Maps
WFD catchment
Red Beck, Source to Calder and Hebble Navigation (GB104027062720)
2024 spills / hours
43 / 151
Long-term average
62.8 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 113 hours spilling →
Tributary of Shibden Beck 36 113 down 16% 100%
Seaside Road Easington CSO
Overflow on sewer network
Company site name
SEASIDE RD EASINGTON/CSO
EA ID / permit
YWS01178 · WADC1317
Outlet location
TA4013619032 (OS grid reference) · View on Apple Maps
WFD catchment
Not part of a WFD catchment
2024 spills / hours
30 / 182
Long-term average
41.2 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 112 hours spilling →
Easington Drain 20 112 down 33% 100%
Holme Lane SPS
Storm discharge at pumping station
Company site name
HOLME LANE/CSO
EA ID / permit
YWS00395 · 27/24/0188
Outlet location
SE6156032670 (OS grid reference) · View on Apple Maps
WFD catchment
Ouse from R Wharfe to Upper Humber (GB104027064270)
2024 spills / hours
70 / 822
Long-term average
52.5 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 112 hours spilling →
Ouse 47 112 down 33% 100%
Lealholm Sewage Treatment Works
Inlet overflow at sewage works
Sewage works
Lealholm
Company site name
LEALHOLM/STW
EA ID / permit
YWS00611 · 27/29/0109
Outlet location
NZ7654007530 (OS grid reference) · View on Apple Maps
WFD catchment
Esk from Sleddale Beck to Ruswarp (GB104027068150)
2024 spills / hours
34 / 73
Long-term average
30.3 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 111 hours spilling →
River Esk 33 111 down 3% 100%
Westbury Place CSO
Overflow on sewer network
Company site name
WESTBURY PLACE/CSO
EA ID / permit
YWS00719 · 3435
Outlet location
SE3188031360 (OS grid reference) · View on Apple Maps
WFD catchment
Aire from Gill Beck (Baildon) to Wyke Beck (GB104027063035)
2024 spills / hours
1 / 0.3
Long-term average
50.0 spills a year (monitored since 2020)
Monitor below 90%
Sensor failure / issue · Resolved - May
Investigation
Env Act (SODRP) investigation completed, UWWTR investigation completed, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 111 hours spilling →
Balm Beck 29 111 up 2800% 90%
Chapel Haddlesey WwTW
Storm tank at sewage works
Sewage works
Chapel Haddlesey
Company site name
CHAPEL HADDLESEY/STW
EA ID / permit
YWS01471 · WRA7780
Outlet location
SE5955025160 (OS grid reference) · View on Apple Maps
WFD catchment
Aire from Fryston Beck to River Ouse (GB104027063037)
2024 spills / hours
103 / 1,310
Long-term average
54.3 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation completed, UWWTR investigation completed, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 111 hours spilling →
River Aire 19 111 down 82% 100%
Lime Grove CSO
Overflow on sewer network
Company site name
LIME GROVE/CSO
EA ID / permit
YWS02136 · WRA9249
Outlet location
SK4638198985 (OS grid reference) · View on Apple Maps
WFD catchment
Don from Greasborough Dyke to River Dearne (GB104027057452)
2024 spills / hours
59 / 264
Long-term average
46.2 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 111 hours spilling →
Clvrt Trib of Kilnhurst Cut 35 111 down 41% 100%
Riverside Close Darfield CSO
Overflow on sewer network
Company site name
RIVERSIDE CL DARFIELD/CSO
EA ID / permit
YWS02141 · WRA9255
Outlet location
SE4207804550 (OS grid reference) · View on Apple Maps
WFD catchment
Dearne from Lundwood to River Dove (GB104027063172)
2024 spills / hours
21 / 41
Long-term average
21.7 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 111 hours spilling →
River Dearne 27 111 up 29% 98%
Holme Bottom CSO
Overflow on sewer network
Company site name
HOLME BOTTOM/CSO
EA ID / permit
YWS02157 · WRA9275
Outlet location
SE1618009080 (OS grid reference) · View on Apple Maps
WFD catchment
New Mill Dike from Source to River Holme (GB104027057610)
2024 spills / hours
29 / 54
Long-term average
76.2 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 111 hours spilling →
New Mill Dike 36 111 up 24% 99%
Mitchell Laithes WwTW
Inlet overflow at sewage works
Sewage works
Mitchell Laithes
Company site name
DEWSBURY/STW/6XDWF OVERFLOW
EA ID / permit
YWS00890 · E15
Outlet location
SE2646019490 (OS grid reference) · View on Apple Maps
WFD catchment
Calder from River Colne to River Chald (GB104027062631)
2024 spills / hours
12 / 65
Long-term average
27.8 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 110 hours spilling →
River Calder 19 110 up 58% 100%
Littlemoor Newbold CSO
Overflow on sewer network
Company site name
LITTLEMOOR NEWBOLD/CSO
EA ID / permit
YWS00760 · 3778
Outlet location
SK3740873988 (OS grid reference) · View on Apple Maps
WFD catchment
Drone from Source to River Whitting (GB104027057710)
2024 spills / hours
52 / 117
Long-term average
53.2 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 110 hours spilling →
Ridding Brook Clvrt via SWS 43 110 down 17% 100%
Eldertree Road NO2 SPS
Overflow on sewer network
Company site name
ELDERTREE ROAD/NO 2 CSO
EA ID / permit
YWS01464 · WRA7705
Outlet location
SK3751995328 (OS grid reference) · View on Apple Maps
WFD catchment
Blackburn Brook from Source to River Don (GB104027057440)
2024 spills / hours
38 / 103
Long-term average
31.7 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Investigation
UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 109 hours spilling →
Trib of Blackburn Brook 31 109 down 18% 100%
Embsay CSO
Overflow on sewer network
Company site name
EMBSAY/CSO
EA ID / permit
YWS02175 · WRA9313
Outlet location
SE0057553332 (OS grid reference) · View on Apple Maps
WFD catchment
Haw Beck from Source to Eller beck (GB104027063060)
2024 spills / hours
66 / 251
Long-term average
49.0 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 109 hours spilling →
Embsay Beck 49 109 down 26% 100%
Red Doles Road CSO
Overflow on sewer network
Company site name
RED DOLES ROAD/CSO
EA ID / permit
YWS00164 · 2623
Outlet location
SE1580618021 (OS grid reference) · View on Apple Maps
WFD catchment
River Colne from River Holme to River Calder (GB104027062550)
2024 spills / hours
51 / 115
Long-term average
43.7 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Investigation
Env Act (SODRP) investigation completed, UWWTR investigation completed, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 109 hours spilling →
River Colne 44 109 down 14% 100%
Rawdon Transfer SPS
Storm discharge at pumping station
Company site name
RAWDON/CSO
EA ID / permit
YWS00892 · E152
Outlet location
SE2123037870 (OS grid reference) · View on Apple Maps
WFD catchment
Aire from Gill Beck (Baildon) to Wyke Beck (GB104027063035)
2024 spills / hours
33 / 174
Long-term average
41.3 spills a year (monitored since 2023)
Investigation
Env Act (SODRP) investigation completed, UWWTR investigation completed, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 109 hours spilling →
River Aire 26 109 down 21% 100%
Landing Lane CSO
Overflow on sewer network
Company site name
YORK LANDING LANE/CSO
EA ID / permit
YWS00471 · 27/24/0458
Outlet location
SE5834752566 (OS grid reference) · View on Apple Maps
WFD catchment
Ouse from River Nidd to Stillingfleet Beck (GB104027069593)
2024 spills / hours
33 / 106
Long-term average
19.0 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 108 hours spilling →
River Ouse 13 108 down 61% 95%
Filey Waste Water Treatment Works
Storm discharge at pumping station
Company site name
FILEY TRANSFER/CSO
EA ID / permit
YWS00510 · 27/27/0051
Outlet location
TA1377081370 (OS grid reference) · View on Apple Maps
WFD catchment
Yorkshire North (GB650401500004)
Bathing water
Filey
2024 spills / hours
61 / 159
Long-term average
52.7 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 108 hours spilling →
North Sea 44 108 down 28% 100%
Hackforth No. 2 STW
Inlet overflow at sewage works
Sewage works
Hackforth
Company site name
HACKFORTH/NO 2 STW
EA ID / permit
YWS00368 · 27/23/0273
Outlet location
SE2453093230 (OS grid reference) · View on Apple Maps
WFD catchment
Scurf Beck from Source to Bedale Beck (GB104027068970)
2024 spills / hours
50 / 246
Long-term average
13.5 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 108 hours spilling →
Bowbridge Beck 31 108 down 38% 100%
Permit applied for
Inlet overflow at sewage works
Sewage works
Permit Applied For
Company site name
HUDSWELL/STW
EA ID / permit
YWS02292 · Permit applied for
Outlet location
SE1535899617 (OS grid reference) · View on Apple Maps
WFD catchment
Sand Beck from Source to River Swale (GB104027069020)
2024 spills / hours
– / –
Long-term average
22.0 spills a year (monitored since 2025)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 108 hours spilling →
Permit applied for 22 108 96%
Harrogate North Sewage Treatment
Inlet overflow at sewage works
Sewage works
Harrogate North Sewage Treatment
Company site name
HARROGATE NORTH/STW/6XDWF OVERFLOW
EA ID / permit
YWS01040 · QR.27/21/0047
Outlet location
SE3020057985 (OS grid reference) · View on Apple Maps
WFD catchment
Oak Beck Catchment (Trib of Nidd) (GB104027063760)
2024 spills / hours
53 / 190
Long-term average
48.5 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing, Operational investigation ongoing, Bathing Water and/or Shellfish Water investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 108 hours spilling →
Oak Beck (Nidd Cat) 37 108 down 30% 100%
Harrogate Hydro Csos
Overflow on sewer network
Company site name
ST MARYS WALK 112/CSO
EA ID / permit
YWS00259 · 27/21/0216
Outlet location
SE2995055220 (OS grid reference) · View on Apple Maps
WFD catchment
Oak Beck Catchment (Trib of Nidd) (GB104027063760)
2024 spills / hours
86 / 203
Long-term average
91.8 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing, Operational investigation ongoing, Bathing Water and/or Shellfish Water investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 108 hours spilling →
Oak Beck and Coppice Beck 49 108 down 43% 100%
Bishop Burton SPS
Storm discharge at pumping station
Company site name
BISHOP BURTON/CSO
EA ID / permit
YWS01251 · WADC41
Outlet location
SE9890040000 (OS grid reference) · View on Apple Maps
WFD catchment
High Hunsley to Arram Area (GB104026066841)
2024 spills / hours
37 / 220
Long-term average
38.3 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 108 hours spilling →
Nearby Ditch 27 108 down 27% 100%
Gordon Terrace CSO
Overflow on sewer network
Company site name
GORDON TERRACE/CSO
EA ID / permit
YWS01403 · WRA7457
Outlet location
SE0989214773 (OS grid reference) · View on Apple Maps
WFD catchment
River Colne from Wessenden Brook to R Holme (GB104027063330)
2024 spills / hours
37 / 93
Long-term average
85.0 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation completed, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 108 hours spilling →
River Colne 29 108 down 22% 100%
Permit applied for
Overflow on sewer network
Company site name
DEMA WORKS/CSO
EA ID / permit
YWS02273 · Permit applied for
Outlet location
SK3866773093 (OS grid reference) · View on Apple Maps
WFD catchment
Rother, Spittal Brook to Doe Lea (GB104027057771)
2024 spills / hours
21 / 59
Long-term average
21.0 spills a year (monitored since 2023)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Investigation
Env Act (SODRP) investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 108 hours spilling →
Permit applied for 36 108 up 71% 100%
Masham Sewage Treatment Works
Storm tank at sewage works
Sewage works
Masham
Company site name
MASHAM/STW
EA ID / permit
YWS00287 · 27/22/0063
Outlet location
SE2308080630 (OS grid reference) · View on Apple Maps
WFD catchment
Ure from Thornton Steward Beck to River Skell (GB104027069461)
2024 spills / hours
67 / 875
Long-term average
46.0 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 107 hours spilling →
River Ure 38 107 down 43% 100%
Carr Green CSO
Overflow on sewer network
Company site name
CARR GREEN/CSO
EA ID / permit
YWS00834 · C4139
Outlet location
SE3308209288 (OS grid reference) · View on Apple Maps
WFD catchment
River Dearne from Cawthorne Dyke to Lundwood STW (GB104027063171)
2024 spills / hours
42 / 88
Long-term average
38.2 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Investigation
Env Act (SODRP) investigation completed, UWWTR investigation completed, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 107 hours spilling →
Dyke to River Dearne 33 107 down 21% 100%
Stoneyrock Lane CSO
Overflow on sewer network
Company site name
COMPTON PLACE/CSO
EA ID / permit
YWS01713 · WRA8259
Outlet location
SE3105034220 (OS grid reference) · View on Apple Maps
WFD catchment
Meanwood Beck from Source to River Aire (GB104027062900)
2024 spills / hours
77 / 154
Long-term average
79.2 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Investigation
Env Act (SODRP) investigation completed, UWWTR investigation completed, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 107 hours spilling →
Stoney Rock Beck 54 107 down 30% 97%
Fenay Lane CSO
Overflow on sewer network
Company site name
FENAY LANE/CSO
EA ID / permit
YWS01762 · WRA8434
Outlet location
SE1812115508 (OS grid reference) · View on Apple Maps
WFD catchment
Fenay beck from Source to River Colne (GB104027063340)
2024 spills / hours
30 / 78
Long-term average
39.0 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 107 hours spilling →
Fenay Beck 31 107 up 3% 100%
Broomfield Lane No 2 CSO
Overflow on sewer network
Company site name
BROOMFIELD LANE/NO 2 CSO
EA ID / permit
YWS01711 · WRA8256
Outlet location
SE2414313223 (OS grid reference) · View on Apple Maps
WFD catchment
Bentley Brook from Source to River Dearne (GB104027063310)
2024 spills / hours
31 / 145
Long-term average
29.3 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 107 hours spilling →
Out Lane Dyke 20 107 down 35% 100%
Tadcaster Brittania CSO
Overflow on sewer network
Company site name
TADCASTER BRITTANIA/CSO
EA ID / permit
YWS00209 · 27/20/0114
Outlet location
SE4884943375 (OS grid reference) · View on Apple Maps
WFD catchment
Wharfe from Collingham Beck to Tadcaster Weir (GB104027064255)
2024 spills / hours
33 / 268
Long-term average
67.5 spills a year (monitored since 2020)
Investigation
Operational investigation ongoing
Improvement
UWWTR improvement completed, Operational improvement ongoing
Volume & pollution
Estimate from 107 hours spilling →
River Wharfe 24 107 down 27% 98%
The Falls SPS
Storm discharge at pumping station
Company site name
ARDSLEY FALLS/CSO
EA ID / permit
YWS00840 · C4235
Outlet location
SE3147025970 (OS grid reference) · View on Apple Maps
WFD catchment
Oulton Beck from Source to River Aire (GB104027062680)
2024 spills / hours
16 / 57
Long-term average
29.2 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation completed, UWWTR investigation completed, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 106 hours spilling →
Bowling Beck 19 106 up 19% 98%
Cragg Top Combined Sewer Overflow
Overflow on sewer network
Company site name
CRAGG TOP/CSO
EA ID / permit
YWS00277 · 27/21/0263
Outlet location
SE3513056250 (OS grid reference) · View on Apple Maps
WFD catchment
Nidd from Low Bridge on Briggate (Knaresborough) to Crimple Beck (GB104027068298)
Bathing water
Nidd at the Lido, Knaresborough
2024 spills / hours
13 / 5.0
Long-term average
13.3 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed, Bathing Water and/or Shellfish Water investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 106 hours spilling →
River Nidd 11 106 down 15% 96%
Bramley Park Close CSO
Overflow on sewer network
Company site name
BRAMLEY PARK CLOSE/CSO
EA ID / permit
YWS00835 · C4153
Outlet location
SK4064085840 (OS grid reference) · View on Apple Maps
WFD catchment
Rother, Doe Lea to Don (GB104027057772)
2024 spills / hours
49 / 109
Long-term average
52.7 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Investigation
Env Act (SODRP) investigation completed, UWWTR investigation completed, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 106 hours spilling →
Shirtcliff Brook 37 106 down 24% 100%
Woodhall Way
Overflow on sewer network
Company site name
BEVERLEY WOODHALL WAY/CSO
EA ID / permit
YWS00764 · 3793(SS)
Outlet location
TA0295040550 (OS grid reference) · View on Apple Maps
WFD catchment
Beverley and Barmston Drain (GB104026067211)
2024 spills / hours
23 / 208
Long-term average
11.7 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 106 hours spilling →
Un-Named Trib of Sister Beck 15 106 down 35% 98%
Ravenfield Village STW
Inlet overflow at sewage works
Sewage works
Ravenfield Village
Company site name
RAVENFIELD/STW
EA ID / permit
YWS00928 · E756(SS)
Outlet location
SK4852095380 (OS grid reference) · View on Apple Maps
WFD catchment
Hooton Brook from Source to River Don (GB104027057430)
2024 spills / hours
115 / 1,012
Long-term average
135.3 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 106 hours spilling →
Trib of Hooton Brook 34 106 down 70% 100%
Tadcaster Wpc Works
Storm tank at sewage works
Sewage works
Tadcaster Wpc Works
Company site name
TADCASTER/DOMESTIC STW
EA ID / permit
YWS00201 · 27/20/0073
Outlet location
SE4949042450 (OS grid reference) · View on Apple Maps
WFD catchment
Wharfe from Tadcaster Weir to River Ouse (GB104027064256)
2024 spills / hours
29 / 267
Long-term average
13.5 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 105 hours spilling →
River Wharfe 11 105 down 62% 100%
Balby STW (Yws)
Storm tank at sewage works
Sewage works
Balby
Company site name
BALBY/STW/STORM TREATMENT
EA ID / permit
YWS01081 · T/83/45405/R
Outlet location
SE5719001070 (OS grid reference) · View on Apple Maps
WFD catchment
Mother Drain from Source to R Torne (GB104028058440)
2024 spills / hours
20 / 176
Long-term average
31.5 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 105 hours spilling →
Trib of Mother Drain 11 105 down 45% 100%
Buck Mill Lane CSO
Overflow on sewer network
Company site name
BUCK MILL LANE/CSO
EA ID / permit
YWS00630 · 2788
Outlet location
SE1689338881 (OS grid reference) · View on Apple Maps
WFD catchment
Aire (R Worth to Gill Beck) (GB104027063034)
2024 spills / hours
58 / 153
Long-term average
54.5 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation completed, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 105 hours spilling →
Brackendale Beck 51 105 down 12% 100%
Aldwark Moor Sewage Treatment Works
Inlet overflow at sewage works
Sewage works
Aldwark Moor
Company site name
ALDWARK BAY HORSE/2 STW
EA ID / permit
YWS01044 · QR.27/22/0039
Outlet location
SE4650063500 (OS grid reference) · View on Apple Maps
WFD catchment
Ouse from River Ure to River Nidd (GB104027069592)
2024 spills / hours
131 / 897
Long-term average
109.5 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 105 hours spilling →
Unnamed Trib of River Ure 44 105 down 66% 99%
Sinnington SPS
Storm discharge at pumping station
Company site name
SINNINGTON MAIN ST/CSO
EA ID / permit
YWS01244 · WADC383
Outlet location
SE7440085400 (OS grid reference) · View on Apple Maps
WFD catchment
Seven from Little Beck to Catter Beck (GB104027068490)
2024 spills / hours
15 / 122
Long-term average
15.5 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 105 hours spilling →
River Severn 18 105 up 20% 100%
Shibden Head SPS
Overflow on sewer network
Company site name
SHIBDEN HEAD/CSO
EA ID / permit
YWS01416 · WRA7500
Outlet location
SE0966028430 (OS grid reference) · View on Apple Maps
WFD catchment
Red Beck, Source to Calder and Hebble Navigation (GB104027062720)
2024 spills / hours
10 / 34
Long-term average
44.0 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Investigation
UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 105 hours spilling →
Shibden Brook 38 105 up 280% 100%
Cloughfields Road No 2 CSO
Overflow on sewer network
Company site name
CLOUGHFIELDS/NO 2 CSO
EA ID / permit
YWS01510 · WRA7954
Outlet location
SK3693099830 (OS grid reference) · View on Apple Maps
WFD catchment
Knoll Beck from Source to River Dearne (GB104027057470)
2024 spills / hours
51 / 99
Long-term average
52.5 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 105 hours spilling →
Tributary of Harley Dike 42 105 down 18% 100%
Thearne Green CSO
Overflow on sewer network
Company site name
THEARNE GREEN/CSO
EA ID / permit
YWS01658 · WRA8199
Outlet location
SE1270031760 (OS grid reference) · View on Apple Maps
WFD catchment
Clayton Beck (Source to Bradford Bk) (GB104027062861)
2024 spills / hours
54 / 116
Long-term average
59.5 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Investigation
UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 104 hours spilling →
Bull Greave Beck 55 104 up 2% 100%
Great Ouseburn SPS
Storm discharge at pumping station
Company site name
GREAT OUSEBURN/CSO
EA ID / permit
YWS00302 · 27/22/0092
Outlet location
SE4450861779 (OS grid reference) · View on Apple Maps
WFD catchment
River Ouse from Source to River Ure (GB104027063800)
2024 spills / hours
17 / 38
Long-term average
12.0 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Investigation
Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 104 hours spilling →
Unnamed Trib of Ouse Gill Beck 33 104 up 94% 96%

Sewage treatment works

Storm tanks and inlet overflows at each Yorkshire Water sewage works. The figures are 2025 spills.

← All water companies · Contains Environment Agency data licensed under the Open Government Licence v3.0. How to read the data.