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
Snainton No.2 Foulbridge Lane SPS
Storm discharge at pumping station
Company site name
FOULBRIDGE LANE/CSO
EA ID / permit
YWS00515 · 27/27/0058
Outlet location
SE9183081870 (OS grid reference) · View on Apple Maps
WFD catchment
River Derwent from Troutsdale Beck to River Rye (GB104027067930)
2024 spills / hours
15 / 100
Long-term average
12.7 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 16 hours spilling →
Welldale Beck 4 16 down 73% 100%
Nanny Marr Road No. 2 CSO
Overflow on sewer network
Company site name
NANNY MARR ROAD/NO 2 CSO
EA ID / permit
YWS01565 · WRA8081
Outlet location
SE4178005210 (OS grid reference) · View on Apple Maps
WFD catchment
Dearne from Lundwood to River Dove (GB104027063172)
2024 spills / hours
30 / 33
Long-term average
30.8 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 →
Trib of River Dearne 21 16 down 30% 100%
Hall Terrace Clay Cross & High Haze
Overflow on sewer network
Company site name
HALL TERRACE/CSO
EA ID / permit
YWS01884 · WRA8620
Outlet location
SK4037064190 (OS grid reference) · View on Apple Maps
WFD catchment
Rother from Source to Redleadmill Brook (GB104027052280)
2024 spills / hours
25 / 27
Long-term average
25.8 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 16 hours spilling →
River Rother 20 16 down 20% 100%
Scar Lane CSO
Overflow on sewer network
Company site name
SCAR LANE/CSO
EA ID / permit
YWS01972 · WRA8780
Outlet location
SE1155715975 (OS grid reference) · View on Apple Maps
WFD catchment
River Colne from Wessenden Brook to R Holme (GB104027063330)
2024 spills / hours
0 / 0.0
Long-term average
7.2 spills a year (monitored since 2020)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 16 hours spilling →
River Colne 11 16 up from 0 100%
Farnham Road CSO
Overflow on sewer network
Company site name
FARNHAM ROAD/CSO
EA ID / permit
YWS02167 · WRA9299
Outlet location
SE1448332338 (OS grid reference) · View on Apple Maps
WFD catchment
Bradford Beck (Clayton Bk to R Aire) (GB104027062862)
2024 spills / hours
22 / 15
Long-term average
18.8 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 16 hours spilling →
Horton Beck (West Brook) 17 16 down 23% 100%
Hemsworth SPS (Woodlands)
Storm discharge at pumping station
Company site name
WOODLANDS/CSO
EA ID / permit
YWS01475 · WRA7806
Outlet location
SE4316013890 (OS grid reference) · View on Apple Maps
WFD catchment
Hoyle Mill Stream from Source to River Went (GB104027063320)
2024 spills / hours
5 / 2.8
Long-term average
4.3 spills a year (monitored since 2020)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 15 hours spilling →
Trib of Hoyle Mill Drain 7 15 up 40% 100%
Not matched in Ea Consents Database
Overflow on sewer network
Company site name
UPPER MILLGATE/CSO
EA ID / permit
YWS02278 · EPR/JB3590WL
Outlet location
SK4273393067 (OS grid reference) · View on Apple Maps
WFD catchment
Don from Greasborough Dyke to River Dearne (GB104027057452)
2024 spills / hours
19 / 21
Long-term average
16.0 spills a year (monitored since 2023)
Investigation
Env Act (SODRP) investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 15 hours spilling →
Not matched in Ea Consents Database 17 15 down 11% 98%
Harrogate Hydro Csos
Overflow on sewer network
Company site name
ST MARYS WALK 7/CSO
EA ID / permit
YWS00261 · 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
17 / 19
Long-term average
14.7 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 15 hours spilling →
Oak Beck and Coppice Beck 12 15 down 29% 100%
Gilling West Sewage Treatment Works
Storm tank at sewage works
Sewage works
Gilling West
Company site name
GILLING WEST/STW
EA ID / permit
YWS00337 · 27/23/0141
Outlet location
NZ1876004690 (OS grid reference) · View on Apple Maps
WFD catchment
Skeeby/Holme/Dalton Bk from Source to River Swale (GB104027069180)
2024 spills / hours
5 / 15
Long-term average
48.2 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 15 hours spilling →
Gilling Beck 7 15 up 40% 100%
Leeming Bar CSO
Overflow on sewer network
Company site name
LEEMING BAR/CSO
EA ID / permit
YWS01142 · WADC1071
Outlet location
SE2933689687 (OS grid reference) · View on Apple Maps
WFD catchment
Bedale/Newton/Burton Bk from Rand Bk to R Swale (GB104027068910)
2024 spills / hours
7 / 17
Long-term average
8.6 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 15 hours spilling →
Bedale Beck 8 15 up 14% 90%
Paull Back Road CSO
Overflow on sewer network
Company site name
PAULL BACK ROAD/CSO
EA ID / permit
YWS01277 · WADC691
Outlet location
TA1675726350 (OS grid reference) · View on Apple Maps
WFD catchment
Not part of a WFD catchment
2024 spills / hours
0 / 0.0
Long-term average
0.3 spills a year (monitored since 2020)
Investigation
Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 15 hours spilling →
Culv Tributary of Hedon Haven 2 15 up from 0 100%
Hesley Lane CSO
Overflow on sewer network
Company site name
HESLEY LANE/CSO
EA ID / permit
YWS02117 · WRA9225
Outlet location
SK3744896086 (OS grid reference) · View on Apple Maps
WFD catchment
Greasbrough Dike from Source to River Don (GB104027057420)
2024 spills / hours
9 / 20
Long-term average
6.0 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 15 hours spilling →
Thorpe Dyke 6 15 down 33% 100%
Station Road No. 2 CSO
Overflow on sewer network
Company site name
WESTBOURNE DRIVE/NO 1 CSO
EA ID / permit
YWS00183 · 27/19/0064
Outlet location
SE1716044880 (OS grid reference) · View on Apple Maps
WFD catchment
Wharfe from Hundwith Beck to River Washburn (GB104027064258)
2024 spills / hours
28 / 30
Long-term average
40.0 spills a year (monitored since 2022)
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 15 hours spilling →
Mickle Ing Beck 15 15 down 46% 100%
Hillcrest Road No 2 CSO
Overflow on sewer network
Company site name
HILLCREST ROAD/NO 2 CSO
EA ID / permit
YWS01524 · WRA7969
Outlet location
SE1047029635 (OS grid reference) · View on Apple Maps
WFD catchment
Red Beck, Source to Calder and Hebble Navigation (GB104027062720)
2024 spills / hours
7 / 5.0
Long-term average
24.0 spills a year (monitored since 2020)
Monitor below 90%
Comms failure / issue · Resolved - Feb
Investigation
UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 15 hours spilling →
Trib of Shibden Brook 14 15 up 100% 86%
Permit applied for
Overflow on sewer network
Company site name
BARKER LANE S40/CSO
EA ID / permit
YWS02295 · Permit applied for
Outlet location
SK3693570838 (OS grid reference) · View on Apple Maps
WFD catchment
Hipper from Source to River Rother (GB104027057660)
2024 spills / hours
12 / 13
Long-term average
15.0 spills a year (monitored since 2024)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 15 hours spilling →
Permit applied for 18 15 up 50% 100%
Birstwith NO2 SPS
Storm discharge at pumping station
Company site name
BIRSTWITH/NO 2 CSO
EA ID / permit
YWS00224 · 27/21/0083
Outlet location
SE2446459675 (OS grid reference) · View on Apple Maps
WFD catchment
Nidd from Burstwith to Oak Beck (GB104027068296)
2024 spills / hours
20 / 84
Long-term average
35.3 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 14 hours spilling →
River Nidd 5 14 down 75% 100%
Waterside 49 CSO
Overflow on sewer network
Company site name
WATERSIDE 49/CSO
EA ID / permit
YWS00275 · 27/21/0261
Outlet location
SE3457557131 (OS grid reference) · View on Apple Maps
WFD catchment
Nidd from Oak Beck to Low Bridge on Briggate (Knaresborough) (GB104027068297)
Bathing water
Nidd at the Lido, Knaresborough
2024 spills / hours
17 / 27
Long-term average
13.7 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 14 hours spilling →
River Nidd 16 14 down 6% 98%
Borrage Bridge CSO
Overflow on sewer network
Company site name
BORRAGE BRIDGE/CSO
EA ID / permit
YWS00310 · 27/22/0111
Outlet location
SE3102170991 (OS grid reference) · View on Apple Maps
WFD catchment
Skell from River Laver to River Ure (GB104027064140)
2024 spills / hours
31 / 33
Long-term average
54.0 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 14 hours spilling →
River Skell via A Public Sewer 28 14 down 10% 100%
Flanshaw Road CSO
Overflow on sewer network
Company site name
FLANSHAW ROAD/CSO
EA ID / permit
YWS01869 · WRA8583
Outlet location
SE3138220938 (OS grid reference) · View on Apple Maps
WFD catchment
River Chald from Source to River Calder (GB104027062620)
2024 spills / hours
15 / 11
Long-term average
18.2 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 14 hours spilling →
Alverthorpe Beck 15 14 no change 99%
Manor Drive CSO
Overflow on sewer network
Company site name
MANOR DRIVE/CSO
EA ID / permit
YWS01596 · WRA8125
Outlet location
SE1201837395 (OS grid reference) · View on Apple Maps
WFD catchment
Aire (R Worth to Gill Beck) (GB104027063034)
2024 spills / hours
45 / 27
Long-term average
58.3 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing
Improvement
Operational improvement completed
Volume & pollution
Estimate from 14 hours spilling →
Cottingley Beck 33 14 down 27% 100%
Harrogate Hydro Csos
Overflow on sewer network
Company site name
MONTPELLIER RD27/CSO
EA ID / permit
YWS00264 · 27/21/0216
Outlet location
SE2995055270 (OS grid reference) · View on Apple Maps
WFD catchment
Oak Beck Catchment (Trib of Nidd) (GB104027063760)
2024 spills / hours
– / –
Long-term average
6.0 spills a year (monitored since 2020)
Monitor below 90%
Sensor failure / issue · Resolved - Apr
Investigation
Env Act (SODRP) investigation ongoing, Operational investigation completed, Bathing Water and/or Shellfish Water investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 14 hours spilling →
Oak Beck and Coppice Beck 12 14 68%
Bradley Road No'S 1 & 2 CSO
Overflow on sewer network
Company site name
BRADLEY ROAD/NO 3 CSO
EA ID / permit
YWS01518 · WRA7962
Outlet location
SE1610020610 (OS grid reference) · View on Apple Maps
WFD catchment
River Colne from River Holme to River Calder (GB104027062550)
2024 spills / hours
17 / 16
Long-term average
22.3 spills a year (monitored since 2020)
Monitor below 90%
Comms failure / issue · Resolved - Jun
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 14 hours spilling →
Trib of Huddersfield Brd Canal 15 14 down 12% 52%
Gordon Street CSO
Overflow on sewer network
Company site name
GORDON STREET/CSO
EA ID / permit
YWS01557 · WRA8055
Outlet location
SE1654032390 (OS grid reference) · View on Apple Maps
WFD catchment
Bradford Beck (Clayton Bk to R Aire) (GB104027062862)
2024 spills / hours
5 / 20
Long-term average
42.2 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 14 hours spilling →
Bowling Beck (Culverted) 3 14 down 40% 100%
Dronfield Yard CSO
Overflow on sewer network
Company site name
DRONFIELD YARD/CSO
EA ID / permit
YWS02138 · WRA9251
Outlet location
SK3512278686 (OS grid reference) · View on Apple Maps
WFD catchment
Drone from Source to River Whitting (GB104027057710)
2024 spills / hours
23 / 16
Long-term average
19.2 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 14 hours spilling →
River Drone 14 14 down 39% 100%
Whitby Golf Course CSO
Overflow on sewer network
Company site name
WHITBY GOLF COURSE/CSO
EA ID / permit
YWS00602 · 27/29/0087
Outlet location
NZ8829011350 (OS grid reference) · View on Apple Maps
WFD catchment
Not part of a WFD catchment
Bathing water
Whitby
2024 spills / hours
23 / 46
Long-term average
14.5 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 14 hours spilling →
Trib of Upgang Beck 9 14 down 61% 100%
Klondyke SPS
Overflow on sewer network
Company site name
KLONDYKE/CSO
EA ID / permit
YWS01095 · WA6126
Outlet location
SE3790008460 (OS grid reference) · View on Apple Maps
WFD catchment
Cudworth Dyke from Source to River Dearne (GB104027063230)
2024 spills / hours
5 / 6.8
Long-term average
2.2 spills a year (monitored since 2020)
Investigation
Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 14 hours spilling →
Trib of Small Bridge Dike 7 14 up 40% 100%
Lockington No.1 SPS
Storm discharge at pumping station
Company site name
CHAPEL STREET/CSO
EA ID / permit
YWS01229 · WADC275
Outlet location
SE9860047500 (OS grid reference) · View on Apple Maps
WFD catchment
Bryan Mills Beck Source to Bryan Mills Farm (GB104026066960)
2024 spills / hours
5 / 43
Long-term average
3.2 spills a year (monitored since 2020)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 14 hours spilling →
Nearby Dyke 2 14 down 60% 100%
Swan Bank No 2 CSO
Overflow on sewer network
Company site name
SWAN BANK/NO 2 CSO
EA ID / permit
YWS01759 · WRA8431
Outlet location
SE1448607860 (OS grid reference) · View on Apple Maps
WFD catchment
River Holme from Source to New Mill Dike (GB104027057600)
2024 spills / hours
4 / 6.3
Long-term average
7.7 spills a year (monitored since 2020)
Investigation
Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 14 hours spilling →
River Ribble 3 14 down 25% 100%
Hilderthorpe Road CSO
Overflow on sewer network
Company site name
HILDERTHORPE ROAD/CSO
EA ID / permit
YWS00931 · EPRBB3194WR
Outlet location
TA1888065320 (OS grid reference) · View on Apple Maps
WFD catchment
Yorkshire South (GB640402491000)
Bathing water
Bridlington South Beach
2024 spills / hours
14 / 21
Long-term average
12.7 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 14 hours spilling →
North Sea 12 14 down 14% 100%
Yws Unknown Sites Default
Overflow on sewer network
Company site name
BEESTON RING ROAD/CSO
EA ID / permit
YWS00132 · 2408
Outlet location
SE2823029570 (OS grid reference) · View on Apple Maps
WFD catchment
Milshaw Beck from Source to Low/Wortley/Pudsey Bks (GB104027062750)
2024 spills / hours
8 / 6.5
Long-term average
8.3 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 14 hours spilling →
Millshaw Beck 22 14 up 175% 100%
Lowther Street CSO
Overflow on sewer network
Company site name
LOWTHER STREET/CSO
EA ID / permit
YWS00992 · EPRUP3228GU
Outlet location
SE6088052563 (OS grid reference) · View on Apple Maps
WFD catchment
River Foss from the Syke to the River Ouse (GB104027063520)
2024 spills / hours
10 / 12
Long-term average
8.2 spills a year (monitored since 2020)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 14 hours spilling →
River Foss 10 14 no change 100%
Yws Unknown Sites Default
Overflow on sewer network
Company site name
LOW COMMON/CSO
EA ID / permit
YWS01063 · S/CB/51
Outlet location
SE1429017830 (OS grid reference) · View on Apple Maps
WFD catchment
Fenay beck from Source to River Colne (GB104027063340)
2024 spills / hours
2 / 3.0
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 14 hours spilling →
Varies With Outlet 4 14 up 100% 100%
Ryedale Carr Lane CSO
Overflow on sewer network
Company site name
RYEDALE CARR LANE/CSO
EA ID / permit
YWS01194 · WADC1420
Outlet location
SE5793278696 (OS grid reference) · View on Apple Maps
WFD catchment
Holbeck from Source to Marrs Beck (GB104027068420)
2024 spills / hours
5 / 2.0
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 14 hours spilling →
Tributary of Holbeck 12 14 up 140% 100%
Gargrave Road No 2 CSO
Overflow on sewer network
Company site name
GARGRAVE ROAD/NO 2 CSO
EA ID / permit
YWS01609 · WRA8138
Outlet location
SD9861051740 (OS grid reference) · View on Apple Maps
WFD catchment
Eller Beck from Haw Beck to River Aire (GB104027063020)
2024 spills / hours
10 / 10
Long-term average
22.7 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 14 hours spilling →
Eller Beck (via Public Sewer) 8 14 down 20% 92%
Upper Road CSO
Overflow on sewer network
Company site name
UPPER ROAD/NO 2 CSO
EA ID / permit
YWS01847 · WRA8553
Outlet location
SE2376022830 (OS grid reference) · View on Apple Maps
WFD catchment
Batley Beck from Source to River Calder (GB104027062670)
2024 spills / hours
11 / 11
Long-term average
14.3 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 14 hours spilling →
Batley Carr Dyke Culverted 17 14 up 55% 100%
Lockwood Scar CSO
Overflow on sewer network
Company site name
LOCKWOOD SCAR/CSO
EA ID / permit
YWS02076 · WRA9182
Outlet location
SE1369015110 (OS grid reference) · View on Apple Maps
WFD catchment
Holme from New Mill Dike to R Colne (GB104027063301)
2024 spills / hours
10 / 8.3
Long-term average
11.3 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 14 hours spilling →
River Holme 9 14 down 10% 100%
Tulip Tree Close CSO
Overflow on sewer network
Company site name
TULIP TREE CLOSE/CSO
EA ID / permit
YWS00650 · 2943
Outlet location
SK4420684234 (OS grid reference) · View on Apple Maps
WFD catchment
Rother, Doe Lea to Don (GB104027057772)
2024 spills / hours
6 / 11
Long-term average
13.2 spills a year (monitored since 2020)
Monitor below 90%
Sensor failure / issue · Resolved - Sep
Investigation
Env Act (SODRP) investigation completed, UWWTR investigation completed, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 13 hours spilling →
River Rother 10 13 up 67% 62%
Ingrow Lane CSO
Overflow on sewer network
Company site name
INGROW LANE/CSO
EA ID / permit
YWS00659 · 3054
Outlet location
SE0565539764 (OS grid reference) · View on Apple Maps
WFD catchment
Worth from Bridgehouse Beck to R Aire (GB104027062891)
2024 spills / hours
12 / 12
Long-term average
40.0 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 13 hours spilling →
River Worth 4 13 down 67% 100%
Wath Doncaster Road CSO
Overflow on sewer network
Company site name
WATH DONCASTER ROAD/CSO
EA ID / permit
YWS00687 · 3276
Outlet location
SE4417801044 (OS grid reference) · View on Apple Maps
WFD catchment
River Dearne Darfield STW to River Don (GB104027063173)
2024 spills / hours
34 / 33
Long-term average
40.0 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 13 hours spilling →
Brook Dike 17 13 down 50% 100%
Ayton Footbridge SSO
Overflow on sewer network
Company site name
FOOTBRIDGE WST AYTON/CSO
EA ID / permit
YWS01276 · WADC688
Outlet location
SE9871084470 (OS grid reference) · View on Apple Maps
WFD catchment
River Derwent from Troutsdale Beck to River Rye (GB104027067930)
2024 spills / hours
22 / 41
Long-term average
19.7 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 13 hours spilling →
River Derwent 13 13 down 41% 97%
Belle Isle Road CSO
Overflow on sewer network
Company site name
BELLE ISLE ROAD/CSO
EA ID / permit
YWS01585 · WRA8104
Outlet location
SE0340637009 (OS grid reference) · View on Apple Maps
WFD catchment
Bridgehouse Beck from Source to River Worth (GB104027064200)
2024 spills / hours
22 / 21
Long-term average
27.3 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 13 hours spilling →
Bridgehouse Beck 16 13 down 27% 100%
Westthorpe No 2 CSO
Overflow on sewer network
Company site name
WESTHORPE/NO 2 CSO
EA ID / permit
YWS01716 · WRA8262
Outlet location
SK4548579482 (OS grid reference) · View on Apple Maps
WFD catchment
Rother, Doe Lea to Don (GB104027057772)
2024 spills / hours
8 / 9.8
Long-term average
6.5 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 13 hours spilling →
Park Brook 10 13 up 25% 100%
Skinner Lane CSO
Overflow on sewer network
Company site name
SKINNER LANE/CSO
EA ID / permit
YWS00939 · EPRCB3893AH
Outlet location
SE3091933975 (OS grid reference) · View on Apple Maps
WFD catchment
Meanwood Beck from Source to River Aire (GB104027062900)
2024 spills / hours
8 / 17
Long-term average
11.2 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 13 hours spilling →
Lady Beck 7 13 down 13% 100%
Spring Valley NO2 CSO
Overflow on sewer network
Company site name
SPRING VALLEY/NO 2 CSO
EA ID / permit
YWS01008 · NPSWQD005795
Outlet location
SE2203434396 (OS grid reference) · View on Apple Maps
WFD catchment
Aire from Gill Beck (Baildon) to Wyke Beck (GB104027063035)
2024 spills / hours
20 / 28
Long-term average
20.2 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 13 hours spilling →
Farsley Beck 16 13 down 20% 99%
Forest Lane CSO
Overflow on sewer network
Company site name
FOREST LANE/NO 2 CSO
EA ID / permit
YWS00241 · 27/21/0149
Outlet location
SE3353055270 (OS grid reference) · View on Apple Maps
WFD catchment
Crimple Beck from Source to Park Beck (GB104027063741)
2024 spills / hours
18 / 27
Long-term average
9.0 spills a year (monitored since 2020)
Investigation
Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 13 hours spilling →
Culverted Star Beck 9 13 down 50% 100%
Brook Park NO2 CSO
Overflow on sewer network
Company site name
BROOK PARK/NO 2 CSO
EA ID / permit
YWS01022 · NPSWQD009652
Outlet location
NZ8690408259 (OS grid reference) · View on Apple Maps
WFD catchment
Esk from Sleddale Beck to Ruswarp (GB104027068150)
2024 spills / hours
13 / 27
Long-term average
12.8 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 13 hours spilling →
Tributary of River Esk 6 13 down 54% 100%
Ampleforth CSO
Overflow on sewer network
Company site name
AMPLEFORTH/CSO
EA ID / permit
YWS01152 · WADC1140
Outlet location
SE5821478092 (OS grid reference) · View on Apple Maps
WFD catchment
Holbeck from Source to Marrs Beck (GB104027068420)
2024 spills / hours
11 / 16
Long-term average
11.2 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 13 hours spilling →
Tributary of Holbeck 13 13 up 18% 100%
Holme Lane CSO
Overflow on sewer network
Company site name
HOLME LANE SHEFFIELD/CSO
EA ID / permit
YWS01816 · WRA8509
Outlet location
SK3342589701 (OS grid reference) · View on Apple Maps
WFD catchment
Loxley from Strines Dyke to River Don (GB104027057370)
2024 spills / hours
21 / 16
Long-term average
32.2 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 13 hours spilling →
River Loxley 16 13 down 24% 100%
Portland Street CSO
Overflow on sewer network
Company site name
PORTLAND STREET/CSO
EA ID / permit
YWS00464 · 27/24/0450
Outlet location
SE5960652083 (OS grid reference) · View on Apple Maps
WFD catchment
Ouse from River Nidd to Stillingfleet Beck (GB104027069593)
2024 spills / hours
74 / 321
Long-term average
15.0 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 13 hours spilling →
River Ouse 15 13 down 80% 99%
Wath Moor Road CSO
Overflow on sewer network
Company site name
WATH MOOR ROAD/CSO
EA ID / permit
YWS00842 · C4237
Outlet location
SE4366001130 (OS grid reference) · View on Apple Maps
WFD catchment
River Dearne Darfield STW to River Don (GB104027063173)
2024 spills / hours
23 / 23
Long-term average
23.0 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 13 hours spilling →
Brook Dike 17 13 down 26% 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.