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
Jack Lane CSO
Overflow on sewer network
Company site name
OLD RUN ROAD/CSO
EA ID / permit
YWS01840 · WRA8543
Outlet location
SE3216031220 (OS grid reference) · View on Apple Maps
WFD catchment
Aire from Gill Beck (Baildon) to Wyke Beck (GB104027063035)
2024 spills / hours
12 / 6.3
Long-term average
11.8 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 20 hours spilling →
Aire and Calder Navigation 24 20 up 100% 100%
Woodseats Road 2 CSO
Overflow on sewer network
Company site name
WOODSEATS ROAD 2/CSO
EA ID / permit
YWS02091 · WRA9197
Outlet location
SK3437083902 (OS grid reference) · View on Apple Maps
WFD catchment
River Sheaf from Source to River Porter (GB104027057750)
2024 spills / hours
15 / 17
Long-term average
14.0 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 20 hours spilling →
River Sheaf 8 20 down 47% 97%
Askrigg Sewage Treatment Works
Inlet overflow at sewage works
Sewage works
Askrigg
Company site name
ASKRIGG/STW
EA ID / permit
YWS00286 · 27/22/0062
Outlet location
SD9460090470 (OS grid reference) · View on Apple Maps
WFD catchment
Coghill Beck Catch (trib of Ure) (GB104027069480)
2024 spills / hours
24 / 55
Long-term average
15.8 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 19 hours spilling →
Paddock Beck 16 19 down 33% 100%
Oakdale Avenue CSO
Overflow on sewer network
Company site name
OAKDALE AVENUE/CSO
EA ID / permit
YWS01159 · WADC1184
Outlet location
SE2938056231 (OS grid reference) · View on Apple Maps
WFD catchment
Oak Beck Catchment (Trib of Nidd) (GB104027063760)
2024 spills / hours
24 / 65
Long-term average
24.2 spills a year (monitored since 2020)
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 19 hours spilling →
Oak Beck 18 19 down 25% 100%
New Hey Road CSO
Overflow on sewer network
Company site name
NEW HEY ROAD/CSO
EA ID / permit
YWS00149 · 2504
Outlet location
SE0890818023 (OS grid reference) · View on Apple Maps
WFD catchment
Black Brook from Source to River Calder (GB104027062570)
2024 spills / hours
13 / 21
Long-term average
17.3 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 19 hours spilling →
Culverted Trib Longwood Brook 11 19 down 15% 100%
Milby Island SPS
Storm discharge at pumping station
Company site name
MILBY ISLAND/SPS
EA ID / permit
YWS01233 · WADC302
Outlet location
SE3950067100 (OS grid reference) · View on Apple Maps
WFD catchment
Ure from River Skell to River Tutt (GB104027064161)
2024 spills / hours
5 / 50
Long-term average
1.4 spills a year (monitored since 2020)
Investigation
Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 19 hours spilling →
River Ure 2 19 down 60% 100%
Kippax Storm Tanks
Overflow on sewer network
Company site name
KIPPAX TANKS/CSO
EA ID / permit
YWS01432 · WRA7538
Outlet location
SE4107029770 (OS grid reference) · View on Apple Maps
WFD catchment
Lin Dike from Source to River Aire (GB104027062810)
2024 spills / hours
2 / 4.0
Long-term average
1.7 spills a year (monitored since 2020)
Investigation
Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 19 hours spilling →
Hollins Beck 3 19 up 50% 100%
Fife Street CSO
Overflow on sewer network
Company site name
FIFE STREET/CSO
EA ID / permit
YWS02088 · WRA9194
Outlet location
SK3886492035 (OS grid reference) · View on Apple Maps
WFD catchment
Blackburn Brook from Source to River Don (GB104027057440)
2024 spills / hours
17 / 32
Long-term average
16.8 spills a year (monitored since 2020)
Monitor below 90%
Sensor failure / issue · Resolved - Aug
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 19 hours spilling →
Blackburn Brook 4 19 down 76% 54%
Whitwood (Whitwood Lane) SPS
Storm discharge at pumping station
Company site name
WHITWOOD/CSO
EA ID / permit
YWS02186 · YWUCD1/109
Outlet location
SE4017924649 (OS grid reference) · View on Apple Maps
WFD catchment
Calder from River Chald to River Aire (GB104027062632)
2024 spills / hours
2 / 4.3
Long-term average
1.8 spills a year (monitored since 2020)
Investigation
Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 19 hours spilling →
Willowbridge Beck 3 19 up 50% 100%
Permit applied for
Overflow on sewer network
Company site name
SOUTH END BEDALE/CSO
EA ID / permit
YWS02275 · Permit applied for
Outlet location
SE2700088059 (OS grid reference) · View on Apple Maps
WFD catchment
Bedale/Newton/Burton Bk from Rand Bk to R Swale (GB104027068910)
2024 spills / hours
22 / 35
Long-term average
22.7 spills a year (monitored since 2023)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 19 hours spilling →
Permit applied for 16 19 down 27% 100%
Holme Water End SPS
Storm discharge at pumping station
Company site name
HOLME WATER END FARM/CSO
EA ID / permit
YWS01488 · WRA7897
Outlet location
SE7884038150 (OS grid reference) · View on Apple Maps
WFD catchment
Foulness from Black Beck to Market Weighton Canal (GB104026066690)
2024 spills / hours
3 / 15
Long-term average
1.2 spills a year (monitored since 2020)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 19 hours spilling →
Unnamed Trib of River Foulness 2 19 down 33% 100%
Swinton (Kilnhurst-Hooton Rd) SPS
Storm discharge at pumping station
Company site name
HOOTON ROAD/CSO
EA ID / permit
YWS00688 · 3277(SS)
Outlet location
SK4662097400 (OS grid reference) · View on Apple Maps
WFD catchment
Don from Greasborough Dyke to River Dearne (GB104027057452)
2024 spills / hours
17 / 33
Long-term average
28.3 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 19 hours spilling →
River Don 9 19 down 47% 100%
The Narrows CSO
Overflow on sewer network
Company site name
THE NARROWS/CSO
EA ID / permit
YWS01092 · WA6075
Outlet location
SE0920438058 (OS grid reference) · View on Apple Maps
WFD catchment
Harden Beck from Source to River Aire (GB104027062870)
2024 spills / hours
22 / 44
Long-term average
20.2 spills a year (monitored since 2020)
Monitor below 90%
Comms failure / issue · Resolved - Nov
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 19 hours spilling →
Harden Beck 9 19 down 59% 55%
Hartley Brook Road CSO
Overflow on sewer network
Company site name
HARTLEY BROOK ROAD/CSO
EA ID / permit
YWS02084 · WRA9190
Outlet location
SK3624092747 (OS grid reference) · View on Apple Maps
WFD catchment
Blackburn Brook from Source to River Don (GB104027057440)
2024 spills / hours
17 / 22
Long-term average
18.7 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 19 hours spilling →
Sheffield Lane Dike 15 19 down 12% 100%
Wortley Valley CSO
Overflow on sewer network
Company site name
WORTLEY VALLEY/CSO
EA ID / permit
YWS00150 · 2506
Outlet location
SE2785631380 (OS grid reference) · View on Apple Maps
WFD catchment
Low/Wortley/Pudsey Bks from Source to Milshaw Beck (GB104027062830)
2024 spills / hours
17 / 25
Long-term average
33.6 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 18 hours spilling →
Wortley Beck Pumped Outlet 14 18 down 18% 100%
Broadway Station CSO
Storm discharge at pumping station
Company site name
BROADWAY 248/CSO
EA ID / permit
YWS00948 · EPREP3225GG
Outlet location
SE6499012610 (OS grid reference) · View on Apple Maps
WFD catchment
Don from Mill Dyke to River Ouse (GB104027064243)
2024 spills / hours
25 / 108
Long-term average
21.8 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 18 hours spilling →
River Don 18 18 down 28% 100%
Remple Lane CSO
Overflow on sewer network
Company site name
REMPLE LANE/CSO
EA ID / permit
YWS01079 · T/83/00963/O
Outlet location
SE6814908995 (OS grid reference) · View on Apple Maps
WFD catchment
Hatfield Waste Drain Catchment (trib of Torne/Three Rivers) (GB104028064330)
2024 spills / hours
19 / 27
Long-term average
17.5 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 18 hours spilling →
Stonehill Drain 18 18 down 5% 100%
Station Road Mickletown SPS
Storm discharge at pumping station
Company site name
STATION RD MICKLETOWN/CSO
EA ID / permit
YWS01561 · WRA8065
Outlet location
SE3935027370 (OS grid reference) · View on Apple Maps
WFD catchment
Aire from Wyke Beck to Fryston Beck (GB104027063036)
2024 spills / hours
24 / 18
Long-term average
13.0 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 18 hours spilling →
River Aire 20 18 down 17% 100%
Mulgrave Street 259 CSO
Overflow on sewer network
Company site name
MOUNT STREET/NO 3 CSO
EA ID / permit
YWS01706 · WRA8249
Outlet location
SE1734032810 (OS grid reference) · View on Apple Maps
WFD catchment
Bradford Beck (Clayton Bk to R Aire) (GB104027062862)
2024 spills / hours
1 / 1.3
Long-term average
9.8 spills a year (monitored since 2020)
Monitor below 90%
Capital / maintenance works affect EDM operation · Resolved - Sep
Investigation
Env Act (SODRP) investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 18 hours spilling →
East Brook (Culverted) 13 18 up 1200% 44%
Skipton on Swale STW
Inlet overflow at sewage works
Sewage works
Skipton On Swale
Company site name
SKIPTON ON SWALE/STW
EA ID / permit
YWS00351 · 27/23/0216
Outlet location
SE3640079770 (OS grid reference) · View on Apple Maps
WFD catchment
Swale from Wiske to River Ure (GB104027069591)
2024 spills / hours
9 / 16
Long-term average
45.5 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 18 hours spilling →
River Swale 10 18 up 11% 100%
Little Ouseburn SPS
Overflow on sewer network
Company site name
LITTLE OUSEBURN/NO 2 CSO
EA ID / permit
YWS00415 · 27/24/0249
Outlet location
SE4499560930 (OS grid reference) · View on Apple Maps
WFD catchment
River Ouse from Source to River Ure (GB104027063800)
2024 spills / hours
16 / 34
Long-term average
10.0 spills a year (monitored since 2020)
Investigation
Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 18 hours spilling →
Trib of Ouse Gill Beck 18 18 up 13% 100%
Kent Road CSO
Overflow on sewer network
Company site name
KENT ROAD/CSO
EA ID / permit
YWS00826 · C3961
Outlet location
SE2302032610 (OS grid reference) · View on Apple Maps
WFD catchment
Low/Wortley/Pudsey Bks from Source to Milshaw Beck (GB104027062830)
2024 spills / hours
25 / 28
Long-term average
24.0 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 18 hours spilling →
Tributary of Pudsey Beck 17 18 down 32% 100%
Thornton-Le-Beans CSO
Overflow on sewer network
Company site name
THORNTON LE BEANS/CSO
EA ID / permit
YWS00874 · C5056
Outlet location
SE3966590312 (OS grid reference) · View on Apple Maps
WFD catchment
Otterington Beck catchment (trib of Wiske) (GB104027069450)
2024 spills / hours
17 / 35
Long-term average
12.2 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 18 hours spilling →
Thornton Le Beans Beck 7 18 down 59% 100%
Redacre No 2 STW
Storm tank at sewage works
Sewage works
Redacre
Company site name
REDACRE/NO 2 STW/3XDWF OVERFLOW
EA ID / permit
YWS00922 · E740(SS)
Outlet location
SE0102026180 (OS grid reference) · View on Apple Maps
WFD catchment
Calder from Colden Water to Ryburn Confluence (GB104027062641)
2024 spills / hours
0 / 0.0
Long-term average
3.7 spills a year (monitored since 2020)
Investigation
Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 18 hours spilling →
River Calder 7 18 up from 0 100%
Cutthorpe Road CSO
Overflow on sewer network
Company site name
CUTTHORPE ROAD/CSO
EA ID / permit
YWS01163 · WADC1210
Outlet location
SK3490673370 (OS grid reference) · View on Apple Maps
WFD catchment
Holme Brook/Linacre Beck (GB104027057670)
2024 spills / hours
14 / 14
Long-term average
15.7 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 18 hours spilling →
Tributary of Holme Brook 15 18 up 7% 100%
Millhouses Street CSO
Overflow on sewer network
Company site name
MILLHOUSES STREET/CSO
EA ID / permit
YWS01509 · WRA7953
Outlet location
SE3769400309 (OS grid reference) · View on Apple Maps
WFD catchment
Knoll Beck from Source to River Dearne (GB104027057470)
2024 spills / hours
14 / 28
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 18 hours spilling →
Tributary of Knoll Beck 15 18 up 7% 100%
Canklow CSO
Overflow on sewer network
Company site name
CANKLOW/CSO
EA ID / permit
YWS02083 · WRA9189
Outlet location
SK4261491886 (OS grid reference) · View on Apple Maps
WFD catchment
Rother, Doe Lea to Don (GB104027057772)
2024 spills / hours
10 / 12
Long-term average
10.0 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 18 hours spilling →
River Rother 8 18 down 20% 99%
Watson Mill Lane CSO
Overflow on sewer network
Company site name
WATSON MILL LANE/CSO
EA ID / permit
YWS01746 · WRA8413
Outlet location
SE0558422995 (OS grid reference) · View on Apple Maps
WFD catchment
River Ryburn from Booth Dean Clough to R Calder (GB104027062580)
2024 spills / hours
8 / 8.1
Long-term average
28.0 spills a year (monitored since 2020)
Monitor below 90%
Sensor failure / issue · Scheduled
Investigation
Env Act (SODRP) investigation completed, UWWTR investigation completed, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 18 hours spilling →
River Ryburn 7 18 down 13% 27%
Harrogate Hydro Csos
Overflow on sewer network
Company site name
ST MARYS WALK 30/CSO
EA ID / permit
YWS00257 · 27/21/0216
Outlet location
SE2995055070 (OS grid reference) · View on Apple Maps
WFD catchment
Oak Beck Catchment (Trib of Nidd) (GB104027063760)
2024 spills / hours
20 / 40
Long-term average
20.7 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 18 hours spilling →
Oak Beck and Coppice Beck 17 18 down 15% 100%
Carver Clough No 2 CSO
Overflow on sewer network
Company site name
CARVER CLOUGH/NO 2 CSO
EA ID / permit
YWS00642 · 2853
Outlet location
SE0345518360 (OS grid reference) · View on Apple Maps
WFD catchment
Booth Dean Clough from Source to River Ryburn (GB104027062520)
2024 spills / hours
6 / 12
Long-term average
2.8 spills a year (monitored since 2020)
Investigation
Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 18 hours spilling →
Carver Clough 7 18 up 17% 95%
Dog Kennel Bank CSO
Overflow on sewer network
Company site name
SOMERSET ROAD/CSO
EA ID / permit
YWS01915 · WRA8681
Outlet location
SE1512016250 (OS grid reference) · View on Apple Maps
WFD catchment
River Colne from River Holme to River Calder (GB104027062550)
2024 spills / hours
12 / 8.0
Long-term average
17.2 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 18 hours spilling →
River Colne 13 18 up 8% 100%
Howden Road
Storm discharge at pumping station
Company site name
HOWDEN ROAD/CSO
EA ID / permit
YWS01136 · WADC1034
Outlet location
SE7885029780 (OS grid reference) · View on Apple Maps
WFD catchment
Foulness from Black Beck to Market Weighton Canal (GB104026066690)
2024 spills / hours
0 / 0.0
Long-term average
0.8 spills a year (monitored since 2020)
Investigation
Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 18 hours spilling →
Trib of River Ouse 2 18 up from 0 100%
Hessay Main Street CSO
Overflow on sewer network
Company site name
HESSAY MAIN STREET/CSO
EA ID / permit
YWS01208 · WADC1519
Outlet location
SE5296153423 (OS grid reference) · View on Apple Maps
WFD catchment
Foss Dike from Source to The Foss (GB104027063720)
2024 spills / hours
65 / 239
Long-term average
21.0 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 17 hours spilling →
New Dike 6 17 down 91% 100%
Molescroft SPS
Overflow on sewer network
Company site name
PIGHILL LANE/CSO
EA ID / permit
YWS01235 · WADC307
Outlet location
TA0280041500 (OS grid reference) · View on Apple Maps
WFD catchment
Beverley and Barmston Drain (GB104026067211)
2024 spills / hours
14 / 74
Long-term average
5.8 spills a year (monitored since 2020)
Investigation
Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 17 hours spilling →
Nearby Ditch 3 17 down 79% 100%
Bargate CSO
Overflow on sewer network
Company site name
BARGATE/NO 2 CSO
EA ID / permit
YWS01404 · WRA7458
Outlet location
SE0973014550 (OS grid reference) · View on Apple Maps
WFD catchment
River Colne from Wessenden Brook to R Holme (GB104027063330)
2024 spills / hours
17 / 24
Long-term average
18.0 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation completed, UWWTR investigation completed, Operational investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 17 hours spilling →
River Colne 8 17 down 53% 100%
Low Mill Lane 179 CSO
Overflow on sewer network
Company site name
LOW MILL LANE 179/CSO
EA ID / permit
YWS00191 · 27/19/0092
Outlet location
SE0871049560 (OS grid reference) · View on Apple Maps
WFD catchment
Wharfe from Barben Beck/River Dibb to Hundwith Beck (GB104027064257)
Bathing water
Wharfe at Cromwheel, Ilkley
2024 spills / hours
5 / 5.5
Long-term average
7.3 spills a year (monitored since 2020)
Investigation
Bathing Water and/or Shellfish Water investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 17 hours spilling →
Town Beck 6 17 up 20% 96%
Causeway Side 13 C.S.O
Overflow on sewer network
Company site name
CAUSEWAY SIDE 13/CSO
EA ID / permit
YWS01406 · WRA7460
Outlet location
SE0958714130 (OS grid reference) · View on Apple Maps
WFD catchment
River Colne from Wessenden Brook to R Holme (GB104027063330)
2024 spills / hours
20 / 22
Long-term average
25.0 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 17 hours spilling →
Hoyle House Brook 12 17 down 40% 93%
Anson Grove Sewage Pumping Station
Storm discharge at pumping station
Company site name
ANSON GROVE/CSO
EA ID / permit
YWS00400 · 27/24/0212
Outlet location
SE5725038190 (OS grid reference) · View on Apple Maps
WFD catchment
Ouse Still/fleet bk - Kelfield and Wharfe d/s Ryther (GB104027064280)
2024 spills / hours
0 / 0.0
Long-term average
1.2 spills a year (monitored since 2020)
Investigation
Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 17 hours spilling →
Unnamed Trib of Tidal Ouse 3 17 up from 0 100%
Shipton STW
Inlet overflow at sewage works
Sewage works
Shipton
Company site name
SHIPTON/NO 2 STW
EA ID / permit
YWS00392 · 27/24/0171
Outlet location
SE5580058300 (OS grid reference) · View on Apple Maps
WFD catchment
Hurns Gutterfrom Source to River Ouse (GB104027063780)
2024 spills / hours
12 / 18
Long-term average
36.5 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 17 hours spilling →
Hurns Gutter 7 17 down 42% 100%
Holdsworth Road CSO
Overflow on sewer network
Company site name
HOLDSWORTH ROAD/NO 2 CSO
EA ID / permit
YWS01424 · WRA7512
Outlet location
SE0841028600 (OS grid reference) · View on Apple Maps
WFD catchment
Hebble Brook from Source to River Calder (GB104027062780)
2024 spills / hours
12 / 28
Long-term average
3.7 spills a year (monitored since 2020)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 17 hours spilling →
Strines Beck 7 17 down 42% 100%
Bailiff Bridge CSO
Overflow on sewer network
Company site name
BOROUGH BOUNDARY/CSO
EA ID / permit
YWS00898 · E2
Outlet location
SE1466925807 (OS grid reference) · View on Apple Maps
WFD catchment
Clifton Beck from Source to River Calder (GB104027062700)
2024 spills / hours
19 / 19
Long-term average
15.8 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 16 hours spilling →
Wyke Beck 15 16 down 21% 91%
Anchroage Lane CSO
Storm discharge at pumping station
Company site name
ANCHORAGE LANE/ESO
EA ID / permit
YWS00961 · EPRTP3824XB
Outlet location
SE5626603904 (OS grid reference) · View on Apple Maps
WFD catchment
Bentley Mill Stream (GB104027057541)
2024 spills / hours
0 / 0.0
Long-term average
14.0 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 16 hours spilling →
Swaithe Dike 6 16 up from 0 100%
Engine Lane Sewage Pumping Station
Storm discharge at pumping station
Company site name
ENGINE LANE/CSO
EA ID / permit
YWS00777 · 3836
Outlet location
SE4073008830 (OS grid reference) · View on Apple Maps
WFD catchment
Grimethorpe Dike from Source to River Dearne (GB104027063180)
2024 spills / hours
33 / 97
Long-term average
20.0 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 16 hours spilling →
Grimethorpe Dyke 5 16 down 85% 100%
Airedale STW
Storm tank at sewage works
Sewage works
Airedale
Company site name
AIREDALE/STW
EA ID / permit
YWS01324 · WRA6658
Outlet location
SE4690027000 (OS grid reference) · View on Apple Maps
WFD catchment
Aire from Wyke Beck to Fryston Beck (GB104027063036)
2024 spills / hours
2 / 8.3
Long-term average
14.5 spills a year (monitored since 2020)
Monitor below 90%
Power 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 16 hours spilling →
River Aire 8 16 up 300% 62%
Allerton Grange CSO
Overflow on sewer network
Company site name
ALLERTON GRANGE/CSO
EA ID / permit
YWS01595 · WRA8124
Outlet location
SE3104037830 (OS grid reference) · View on Apple Maps
WFD catchment
Meanwood Beck from Source to River Aire (GB104027062900)
2024 spills / hours
21 / 20
Long-term average
25.2 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 16 hours spilling →
Gledhow Beck 17 16 down 19% 100%
Jordan CSO
Overflow on sewer network
Company site name
JORDAN/CSO
EA ID / permit
YWS00675 · 3167
Outlet location
SK4079092250 (OS grid reference) · View on Apple Maps
WFD catchment
Don from Greasborough Dyke to River Dearne (GB104027057452)
2024 spills / hours
26 / 38
Long-term average
20.7 spills a year (monitored since 2020)
Monitor below 90%
Comms failure / issue · Resolved - Apr
Investigation
Env Act (SODRP) investigation completed, UWWTR investigation completed, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 16 hours spilling →
Holmes Goit 11 16 down 58% 89%
Ashley Park SSO
Storm discharge at pumping station
Company site name
ASHLEY PARK CRESCENT/CSO
EA ID / permit
YWS01210 · WADC16
Outlet location
SE6355041950 (OS grid reference) · View on Apple Maps
WFD catchment
Tang Hall Bk/Old Foss Bk catch, trib of River Foss (GB104027063500)
2024 spills / hours
8 / 18
Long-term average
3.0 spills a year (monitored since 2020)
Investigation
Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 16 hours spilling →
Tang Hall Beck 5 16 down 38% 100%
Gilstead Lane 130 2 CSO
Overflow on sewer network
Company site name
GILSTEAD LANE 130/2 CSO
EA ID / permit
YWS01598 · WRA8127
Outlet location
SE1242438930 (OS grid reference) · View on Apple Maps
WFD catchment
Aire (R Worth to Gill Beck) (GB104027063034)
2024 spills / hours
5 / 12
Long-term average
16.2 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation completed, UWWTR investigation completed, Operational investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 16 hours spilling →
Little Beck Clvrtd via SWS 8 16 up 60% 100%
Lyon Road No 2 CSO
Overflow on sewer network
Company site name
LYON ROAD/NO 2 CSO
EA ID / permit
YWS00156 · 2541
Outlet location
SE0180044950 (OS grid reference) · View on Apple Maps
WFD catchment
Eastburn Beck from Lothersdale Beck to River Aire (GB104027062960)
2024 spills / hours
17 / 27
Long-term average
10.0 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 16 hours spilling →
Mill Stream Trib Eastburn Beck 7 16 down 59% 100%
Field 4751 Melmerby CSO
Overflow on sewer network
Company site name
FIELD 4751 MELMERBY/CSO
EA ID / permit
YWS00162 · 2601
Outlet location
SE3362576527 (OS grid reference) · View on Apple Maps
WFD catchment
Ure from Thornton Steward Beck to River Skell (GB104027069461)
2024 spills / hours
18 / 20
Long-term average
15.3 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 16 hours spilling →
Trib Norton Bk/Nunwick Bk/ 14 16 down 22% 100%

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.