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
Riverside Gardens SPS
Storm discharge at pumping station
Company site name
RIVERSIDE GARDENS/CSO
EA ID / permit
YWS00478 · 27/24/0465
Outlet location
SE5569654982 (OS grid reference) · View on Apple Maps
WFD catchment
Ouse from River Nidd to Stillingfleet Beck (GB104027069593)
2024 spills / hours
110 / 1,055
Long-term average
69.7 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 306 hours spilling →
A Tributary of the River Ouse 62 306 down 44% 100%
Kearby Sewage Treatment Works
Storm tank at sewage works
Sewage works
Kearby
Company site name
KEARBY/STW
EA ID / permit
YWS00213 · 27/20/0128
Outlet location
SE3334246699 (OS grid reference) · View on Apple Maps
WFD catchment
Wharfe from R Washburn to Collingham Beck (GB104027064254)
2024 spills / hours
38 / 305
Long-term average
41.5 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
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 305 hours spilling →
River Wharfe 35 305 down 8% 100%
Honley Huddersfield Road No 2
Overflow on sewer network
Company site name
HONLEY HUDDSFLD RD/2 CSO
EA ID / permit
YWS01771 · WRA8441
Outlet location
SE1404212580 (OS grid reference) · View on Apple Maps
WFD catchment
Holme from New Mill Dike to R Colne (GB104027063301)
2024 spills / hours
67 / 336
Long-term average
59.8 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 305 hours spilling →
River Holme 58 305 down 13% 100%
Yws Unknown Sites Default
Overflow on sewer network
Company site name
NORTON HIGH STREET/CSO
EA ID / permit
YWS00785 · 478
Outlet location
SE5484015150 (OS grid reference) · View on Apple Maps
WFD catchment
Went from Hoyle Mill Stream to Blowell Drain (GB104027063360)
2024 spills / hours
25 / 236
Long-term average
24.8 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 303 hours spilling →
Great Common Drain 25 303 no change 100%
Sowgate Lane CSO
Storm discharge at pumping station
Company site name
SOWGATE LANE/CSO
EA ID / permit
YWS00077 · 2060
Outlet location
SE4718022950 (OS grid reference) · View on Apple Maps
WFD catchment
New Fleet Drain from source to R Went (GB104027063411)
2024 spills / hours
61 / 588
Long-term average
57.7 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 303 hours spilling →
Wash Dike 50 303 down 18% 100%
Spittal Sewage Pumping Station
Overflow on sewer network
Company site name
SPITTAL BRIDGE/CSO
EA ID / permit
YWS00547 · 27/28/0095
Outlet location
SE7679052520 (OS grid reference) · View on Apple Maps
WFD catchment
Blackfoss Bk lower Catch (trib of Pocklington Bk) (GB104027063460)
2024 spills / hours
35 / 328
Long-term average
31.5 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
Operational improvement ongoing
Volume & pollution
Estimate from 301 hours spilling →
Spittal Beck 29 301 down 17% 100%
Long Riston WwTW
Storm tank at sewage works
Sewage works
Long Riston
Company site name
LONG RISTON NORTH/STW
EA ID / permit
YWS01367 · WRA7249
Outlet location
TA1193042430 (OS grid reference) · View on Apple Maps
WFD catchment
Foredyke Stream Lower to Holderness Dr (GB104026066910)
2024 spills / hours
25 / 243
Long-term average
28.7 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 301 hours spilling →
Stonley Goat Dyke 26 301 up 4% 100%
Thornton in Craven SPS
Storm discharge at pumping station
Company site name
THORNTON IN CRAVEN/CSO
EA ID / permit
YWS01887 · WRA8627
Outlet location
SD9077048170 (OS grid reference) · View on Apple Maps
WFD catchment
Earby Beck from Source to Langber beck (GB104027062980)
2024 spills / hours
58 / 354
Long-term average
62.3 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 300 hours spilling →
Thornton Beck 52 300 down 10% 100%
Bedale Sewage Treatment Works
Storm tank at sewage works
Sewage works
Bedale
Company site name
BEDALE/STW
EA ID / permit
YWS00338 · 27/23/0144
Outlet location
SE2738187810 (OS grid reference) · View on Apple Maps
WFD catchment
Bedale/Newton/Burton Bk from Rand Bk to R Swale (GB104027068910)
2024 spills / hours
122 / 1,515
Long-term average
78.0 spills a year (monitored since 2020)
High-spill reason (company)
Performance - SW Infiltration
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 299 hours spilling →
Bedale Beck 37 299 down 70% 100%
Ruston Parva WwTW
Inlet overflow at sewage works
Sewage works
Ruston Parva
Company site name
RUSTON PARVA/STW
EA ID / permit
YWS01731 · WRA8338
Outlet location
TA0669061620 (OS grid reference) · View on Apple Maps
WFD catchment
Lowthorpe/Kelk/Foston Bks from Source to Frodingham Beck (GB104026067101)
2024 spills / hours
186 / 3,862
Long-term average
90.2 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 299 hours spilling →
Unnamed Trib of White Dike 53 299 down 72% 100%
Ilkley Sewage Treatment Works
Inlet overflow at sewage works
Sewage works
Ilkley
Company site name
ILKLEY/STW/6XDWF OVERFLOW
EA ID / permit
YWS00175 · 27/19/0045
Outlet location
SE1240048430 (OS grid reference) · View on Apple Maps
WFD catchment
Wharfe from Barben Beck/River Dibb to Hundwith Beck (GB104027064257)
2024 spills / hours
74 / 386
Long-term average
81.2 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Investigation
UWWTR investigation completed, Operational investigation completed, Bathing Water and/or Shellfish Water investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 298 hours spilling →
River Wharfe 71 298 down 4% 100%
New Ellerby STW
Inlet overflow at sewage works
Sewage works
New Ellerby
Company site name
NEW ELLERBY/STW
EA ID / permit
YWS01985 · WRA8862
Outlet location
TA1667040300 (OS grid reference) · View on Apple Maps
WFD catchment
Lambwath Stream from Source to Foredyke Stream (GB104026066860)
2024 spills / hours
149 / 1,564
Long-term average
33.8 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 297 hours spilling →
Lambwath Stream 41 297 down 72% 100%
Northallerton Road CSO
Overflow on sewer network
Company site name
NORTHALLERTON ROAD/CSO
EA ID / permit
YWS01157 · WADC1179
Outlet location
SE2925990224 (OS grid reference) · View on Apple Maps
WFD catchment
Bedale/Newton/Burton Bk from Rand Bk to R Swale (GB104027068910)
2024 spills / hours
34 / 137
Long-term average
38.3 spills a year (monitored since 2020)
High-spill reason (company)
Performance - Partial / no capacity due to blockage or restriction (e.g. roots / grid) - maintenance issue
Investigation
UWWTR investigation ongoing, Operational investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 297 hours spilling →
Terry Gutter 36 297 up 6% 95%
Foundry Lane CSO
Overflow on sewer network
Company site name
FOUNDRY LANE/NO 2 CSO
EA ID / permit
YWS00709 · 337
Outlet location
SE3390035010 (OS grid reference) · View on Apple Maps
WFD catchment
Wyke Beck from Source to River Aire (GB104027062880)
2024 spills / hours
44 / 166
Long-term average
41.8 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 295 hours spilling →
Wyke Beck 39 295 down 11% 100%
Bolton on Dearne STW
Storm tank at sewage works
Sewage works
Bolton On Dearne
Company site name
BOLTON ON DEARNE/STW/3XDWF OVERFLOW
EA ID / permit
YWS00699 · 3331
Outlet location
SE4584902021 (OS grid reference) · View on Apple Maps
WFD catchment
River Dearne Darfield STW to River Don (GB104027063173)
2024 spills / hours
53 / 425
Long-term average
50.8 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 294 hours spilling →
River Dearne 38 294 down 28% 99%
Hetchell View CSO
Overflow on sewer network
Company site name
HETCHELL VIEW/NO 2 CSO
EA ID / permit
YWS00211 · 27/20/0117
Outlet location
SE3693042990 (OS grid reference) · View on Apple Maps
WFD catchment
Collingham Bk Catchment (trib of Wharfe) (GB104027063970)
2024 spills / hours
65 / 1,088
Long-term average
76.2 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 292 hours spilling →
Bardsey Beck 23 292 down 65% 100%
Crimple Lane CSO
Overflow on sewer network
Company site name
CRIMPLE LANE/NO 2 CSO
EA ID / permit
YWS00238 · 27/21/0143
Outlet location
SE3340954046 (OS grid reference) · View on Apple Maps
WFD catchment
Crimple Beck from Source to Park Beck (GB104027063741)
2024 spills / hours
56 / 325
Long-term average
54.3 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 292 hours spilling →
Crimple Beck 55 292 down 2% 100%
Bridlington STW
Inlet overflow at sewage works
Sewage works
Bridlington
Company site name
BRIDLINGTON/STW
EA ID / permit
YWS01452 · WRA7637
Outlet location
TA1929064910 (OS grid reference) · View on Apple Maps
WFD catchment
Yorkshire South (GB640402491000)
Bathing water
Bridlington South Beach
2024 spills / hours
90 / 405
Long-term average
75.5 spills a year (monitored since 2020)
High-spill reason (company)
Performance - SW Infiltration
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 292 hours spilling →
North Sea 81 292 down 10% 100%
Ruswarp Sewage Pumping Station
Storm discharge at pumping station
Company site name
RUSWARP/CSO
EA ID / permit
YWS00593 · 27/29/0071
Outlet location
NZ8901009060 (OS grid reference) · View on Apple Maps
WFD catchment
Esk from Sleddale Beck to Ruswarp (GB104027068150)
2024 spills / hours
101 / 588
Long-term average
97.5 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 292 hours spilling →
River Esk 67 292 down 34% 100%
Thorp Arch Sewage Treatment Works
Storm tank at sewage works
Sewage works
Thorp Arch
Company site name
THORP ARCH/STW
EA ID / permit
YWS00198 · 27/20/0068
Outlet location
SE4511045840 (OS grid reference) · View on Apple Maps
WFD catchment
Wharfe from Collingham Beck to Tadcaster Weir (GB104027064255)
2024 spills / hours
156 / 1,292
Long-term average
56.2 spills a year (monitored since 2020)
High-spill reason (company)
Performance - SW Infiltration
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 291 hours spilling →
St Helens Dike 54 291 down 65% 100%
Owler Lane CSO
Overflow on sewer network
Company site name
OWLER LANE/CSO
EA ID / permit
YWS00884 · C5538
Outlet location
SK3730090210 (OS grid reference) · View on Apple Maps
WFD catchment
Don from River Loxley confl to River Don Works (GB104027057412)
2024 spills / hours
62 / 237
Long-term average
63.3 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 290 hours spilling →
Bagley Dyke 73 290 up 18% 100%
Holme Road CSO
Overflow on sewer network
Company site name
HOLME ROAD/CSO
EA ID / permit
YWS01971 · WRA8779
Outlet location
SE8756041540 (OS grid reference) · View on Apple Maps
WFD catchment
Foulness from Black Beck to Market Weighton Canal (GB104026066690)
2024 spills / hours
121 / 1,736
Long-term average
85.3 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 288 hours spilling →
Weighton Beck 50 288 down 59% 97%
Wrangbrook STW
Storm tank at sewage works
Sewage works
Wrangbrook
Company site name
UPTON WRANGBROOK/STW/3XDWF OVERFLOW
EA ID / permit
YWS00927 · E744
Outlet location
SE4959012540 (OS grid reference) · View on Apple Maps
WFD catchment
The Skell from Source to Ea Beck (GB104027063280)
2024 spills / hours
31 / 331
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 288 hours spilling →
The Skell (Wrangbrook Dyke) 27 288 down 13% 100%
Dronfield WwTW
Storm tank at sewage works
Sewage works
Dronfield
Company site name
DRONFIELD/STW
EA ID / permit
YWS00061 · 1863
Outlet location
SK3667677888 (OS grid reference) · View on Apple Maps
WFD catchment
Drone from Source to River Whitting (GB104027057710)
2024 spills / hours
43 / 245
Long-term average
48.0 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
No improvement action in reporting period
Volume & pollution
Estimate from 287 hours spilling →
River Drone 42 287 down 2% 100%
Bower Grn/Chestnut St/Myrtle St/
Overflow on sewer network
Company site name
BOWER GREEN/CSO
EA ID / permit
YWS01698 · WRA8241
Outlet location
SE1734032810 (OS grid reference) · View on Apple Maps
WFD catchment
Bradford Beck (Clayton Bk to R Aire) (GB104027062862)
2024 spills / hours
40 / 183
Long-term average
81.5 spills a year (monitored since 2020)
High-spill reason (company)
Performance - SW Infiltration
Monitor below 90%
Sensor 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 286 hours spilling →
East Brook (Culverted) 78 286 up 95% 73%
SSO at Staveley
Overflow on sewer network
Company site name
STAVELEY QUARRY/NO 2 CSO
EA ID / permit
YWS00730 · 3539(SS)
Outlet location
SE3620063200 (OS grid reference) · View on Apple Maps
WFD catchment
Tutt Catchment (Trib of Ure) (GB104027064100)
2024 spills / hours
1 / 10
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 286 hours spilling →
Tanner Beck 29 286 up 2800% 96%
Notton SPS
Storm discharge at pumping station
Company site name
NOTTON/CSO
EA ID / permit
YWS01960 · WRA8754
Outlet location
SE3524113141 (OS grid reference) · View on Apple Maps
WFD catchment
Owler Beck from Source to River Calder (GB104027062530)
2024 spills / hours
77 / 456
Long-term average
59.5 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 285 hours spilling →
Applehaigh Beck 38 285 down 51% 99%
Temple Normanton STW
Storm tank at sewage works
Sewage works
Temple Normanton
Company site name
TEMPLE NORMANTON/STW
EA ID / permit
YWS00906 · E294
Outlet location
SK4223067690 (OS grid reference) · View on Apple Maps
WFD catchment
Spital/Calow/Muster Brook (GB104027057640)
2024 spills / hours
59 / 226
Long-term average
74.5 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 284 hours spilling →
Muster Brook 44 284 down 25% 100%
West Street Combined Sewer Overflow
Overflow on sewer network
Company site name
WEST STREET/CSO
EA ID / permit
YWS02122 · WRA9233
Outlet location
SE0582823292 (OS grid reference) · View on Apple Maps
WFD catchment
River Ryburn from Booth Dean Clough to R Calder (GB104027062580)
2024 spills / hours
137 / 548
Long-term average
111.5 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 284 hours spilling →
River Ryburn 103 284 down 25% 100%
CSO at Milner Lane
Overflow on sewer network
Company site name
MILNER LANE/NO 2 CSO
EA ID / permit
YWS00194 · 27/20/0051
Outlet location
SE3784041000 (OS grid reference) · View on Apple Maps
WFD catchment
Thorner Beck Catchment (trib of Wharfe) (GB104027063950)
2024 spills / hours
103 / 1,230
Long-term average
61.0 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
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 283 hours spilling →
Mill Beck (Wharfe Catchment) 49 283 down 52% 100%
Langthorpe SPS
Storm discharge at pumping station
Company site name
LANGTHORPE/CSO
EA ID / permit
YWS01225 · WADC250
Outlet location
SE3940067200 (OS grid reference) · View on Apple Maps
WFD catchment
Ure from River Skell to River Tutt (GB104027064161)
2024 spills / hours
75 / 674
Long-term average
70.2 spills a year (monitored since 2020)
High-spill reason (company)
Performance - SW Infiltration
Investigation
UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 283 hours spilling →
River Ure 45 283 down 40% 100%
Dacre Sewage Pumping Station
Overflow on sewer network
Company site name
DACRE BANKS/CSO
EA ID / permit
YWS01155 · WADC115
Outlet location
SE1990061700 (OS grid reference) · View on Apple Maps
WFD catchment
Nidd from Ashfoldside Beck to Birstwith (GB104027068295)
2024 spills / hours
118 / 1,470
Long-term average
80.7 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
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 281 hours spilling →
River Nidd 48 281 down 59% 100%
Marygate Lane CSO
Overflow on sewer network
Company site name
MARYGATE LANE/CSO
EA ID / permit
YWS00463 · 27/24/0449
Outlet location
SE5960052080 (OS grid reference) · View on Apple Maps
WFD catchment
Ouse from River Nidd to Stillingfleet Beck (GB104027069593)
2024 spills / hours
71 / 658
Long-term average
38.5 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Monitor below 90%
Sensor failure / issue · Resolved - Jun
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 281 hours spilling →
River Ouse 34 281 down 52% 86%
Ripon Wpc Works
Storm tank at sewage works
Sewage works
Ripon Wpc Works
Company site name
RIPON/STW
EA ID / permit
YWS00281 · 27/22/0052
Outlet location
SE3241570792 (OS grid reference) · View on Apple Maps
WFD catchment
Skell from River Laver to River Ure (GB104027064140)
2024 spills / hours
58 / 601
Long-term average
59.7 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 278 hours spilling →
River Ure 46 278 down 21% 100%
Marton Le Moor STW
Inlet overflow at sewage works
Sewage works
Marton Le Moor
Company site name
MARTON LE MOOR/STW
EA ID / permit
YWS01336 · WRA6820
Outlet location
SE3694070990 (OS grid reference) · View on Apple Maps
WFD catchment
Ure from River Skell to River Tutt (GB104027064161)
2024 spills / hours
153 / 532
Long-term average
180.3 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Monitor below 90%
Sensor failure / issue · Resolved - Sep
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 276 hours spilling →
Trib of Cundall Beck 114 276 down 25% 83%
Foston STW
Inlet overflow at sewage works
Sewage works
Foston
Company site name
FOSTON/STW
EA ID / permit
YWS00571 · 27/28/0194
Outlet location
SE7058065330 (OS grid reference) · View on Apple Maps
WFD catchment
Spittle/Bulmer/Ings Becks catch (trib of Derwent) (GB104027063580)
2024 spills / hours
12 / 46
Long-term average
33.2 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 274 hours spilling →
Spital Beck 36 274 up 200% 100%
Earby Sewage Treatment Works
Inlet overflow at sewage works
Sewage works
Earby
Company site name
EARBY/STW
EA ID / permit
YWS00758 · 3761(SS)
Outlet location
SD9095047240 (OS grid reference) · View on Apple Maps
WFD catchment
Earby Beck from Source to Langber beck (GB104027062980)
2024 spills / hours
95 / 458
Long-term average
99.4 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 273 hours spilling →
Earby Beck 73 273 down 23% 100%
Springvale CSO
Overflow on sewer network
Company site name
SPRINGVALE/CSO
EA ID / permit
YWS00075 · 2002
Outlet location
SE2574403213 (OS grid reference) · View on Apple Maps
WFD catchment
Don from Scout Dyke to the Little Don (GB104027057490)
2024 spills / hours
52 / 304
Long-term average
54.3 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 273 hours spilling →
River Don 51 273 down 2% 100%
Bewholme WwTW
Inlet overflow at sewage works
Sewage works
Bewholme
Company site name
BEWHOLME/STW
EA ID / permit
YWS01730 · WRA8337
Outlet location
TA1690050190 (OS grid reference) · View on Apple Maps
WFD catchment
Barmston Sea Drain / Skipsea Drain to Conf (GB104026077770)
2024 spills / hours
34 / 240
Long-term average
32.3 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 272 hours spilling →
Unnamed Trib of Stream Dike 36 272 up 6% 100%
Permit applied for
Inlet overflow at sewage works
Sewage works
Permit Applied For
Company site name
THORALBY/STW
EA ID / permit
YWS00046 · Permit applied for
Outlet location
SE0030086700 (OS grid reference) · View on Apple Maps
WFD catchment
Bishopdale Bk from Source to Walden Beck (GB104027069360)
2024 spills / hours
59 / 385
Long-term average
73.5 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 272 hours spilling →
Permit applied for 46 272 down 22% 100%
Gilberdyke STW
Inlet overflow at sewage works
Sewage works
Gilberdyke
Company site name
GILBERDYKE/STW
EA ID / permit
YWS01718 · WRA8281
Outlet location
SE8470024110 (OS grid reference) · View on Apple Maps
WFD catchment
HUMBER UPPER (GB530402609203)
2024 spills / hours
129 / 548
Long-term average
120.8 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 272 hours spilling →
River Ouse 83 272 down 36% 96%
Birds Edge CSO
Overflow on sewer network
Company site name
BIRDS EDGE/CSO
EA ID / permit
YWS00806 · 791
Outlet location
SE2041007970 (OS grid reference) · View on Apple Maps
WFD catchment
Dearne from Source to Bentley Brook (GB104027063220)
2024 spills / hours
9 / 25
Long-term average
14.0 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 268 hours spilling →
River Dearne 40 268 up 344% 99%
Darfield WwTW
Storm tank at sewage works
Sewage works
Darfield
Company site name
DARFIELD/NO 2 STW
EA ID / permit
YWS00904 · E281
Outlet location
SE4196303817 (OS grid reference) · View on Apple Maps
WFD catchment
Dearne from Lundwood to River Dove (GB104027063172)
2024 spills / hours
46 / 226
Long-term average
43.3 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 268 hours spilling →
River Dearne 45 268 down 2% 100%
Kirkby Moorside No.2 CSO
Overflow on sewer network
Company site name
KIRKBY MOORSIDE/NO 2 CSO
EA ID / permit
YWS00499 · 27/25/0130
Outlet location
SE7051385943 (OS grid reference) · View on Apple Maps
WFD catchment
River Dove from Source to Hodge Beck (GB104027068260)
2024 spills / hours
92 / 364
Long-term average
97.3 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 267 hours spilling →
River Dove 84 267 down 9% 100%
Cudworth STW
Storm tank at sewage works
Sewage works
Cudworth
Company site name
CUDWORTH/NO 2 STW/3XDWF OVERFLOW
EA ID / permit
YWS00168 · 2655
Outlet location
SE3931007110 (OS grid reference) · View on Apple Maps
WFD catchment
Dearne from Lundwood to River Dove (GB104027063172)
2024 spills / hours
30 / 268
Long-term average
55.0 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 265 hours spilling →
River Dearne 30 265 no change 99%
Herries Road No 2 CSO
Overflow on sewer network
Company site name
HERRIES ROAD/NO 2 CSO
EA ID / permit
YWS01715 · WRA8261
Outlet location
SK3377090740 (OS grid reference) · View on Apple Maps
WFD catchment
Don from Little Don to River Loxley confluence (GB104027057411)
2024 spills / hours
79 / 226
Long-term average
74.0 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 264 hours spilling →
Todd Hole Dike/Mill Stream 71 264 down 10% 100%
Flaxton Sewage Treatment Works
Inlet overflow at sewage works
Sewage works
Flaxton
Company site name
FLAXTON/STW
EA ID / permit
YWS00438 · 27/24/0369
Outlet location
SE6806061480 (OS grid reference) · View on Apple Maps
WFD catchment
The Syke from Source to River Foss (GB104027063530)
2024 spills / hours
69 / 282
Long-term average
96.3 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 263 hours spilling →
Unnamed Trib of the Sike 57 263 down 17% 100%
Permit applied for
Overflow on sewer network
Company site name
MIDDLE LANE SOUTH/CSO
EA ID / permit
YWS02259 · Permit applied for
Outlet location
SK4310193705 (OS grid reference) · View on Apple Maps
WFD catchment
Don from Greasborough Dyke to River Dearne (GB104027057452)
2024 spills / hours
86 / 267
Long-term average
82.3 spills a year (monitored since 2023)
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 262 hours spilling →
Permit applied for 65 262 down 24% 93%
Cheshire Homes
Storm discharge at pumping station
Company site name
ALNE CHESHIRE HOME/CSO
EA ID / permit
YWS00386 · 27/24/0154
Outlet location
SE4955065160 (OS grid reference) · View on Apple Maps
WFD catchment
Kyle from Derrings Beck to New Parks Beck (GB104027063860)
2024 spills / hours
56 / 236
Long-term average
49.2 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 262 hours spilling →
River Kyle 64 262 up 14% 100%
Abbeydale Mount CSO
Overflow on sewer network
Company site name
ABBEYDALE MOUNT/CSO
EA ID / permit
YWS00036 · 1588
Outlet location
SE2533036380 (OS grid reference) · View on Apple Maps
WFD catchment
Aire from Gill Beck (Baildon) to Wyke Beck (GB104027063035)
2024 spills / hours
81 / 245
Long-term average
65.8 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 258 hours spilling →
River Aire 74 258 down 9% 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.