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
Pildacre Lane CSO
Overflow on sewer network
Company site name
PILDACRE LANE/NO 2 CSO
EA ID / permit
YWS01861 · WRA8572
Outlet location
SE2653920667 (OS grid reference) · View on Apple Maps
WFD catchment
Calder from River Colne to River Chald (GB104027062631)
2024 spills / hours
35 / 83
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 94 hours spilling →
Pildacre Mill Beck 28 94 down 20% 100%
Woodlands Drive CSO
Overflow on sewer network
Company site name
WOODLANDS DRIVE/CSO
EA ID / permit
YWS01205 · WADC1505
Outlet location
SE2050338449 (OS grid reference) · View on Apple Maps
WFD catchment
Aire from Gill Beck (Baildon) to Wyke Beck (GB104027063035)
2024 spills / hours
100 / 305
Long-term average
65.0 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 94 hours spilling →
River Aire 31 94 down 69% 100%
North Frodingham SPS
Overflow on sewer network
Company site name
NORTH FRODINGHAM/CSO
EA ID / permit
YWS01553 · WRA8006
Outlet location
TA0950053010 (OS grid reference) · View on Apple Maps
WFD catchment
Mickley Dike Catchment (GB104026066990)
2024 spills / hours
30 / 73
Long-term average
36.2 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 94 hours spilling →
Frodingham Mill Drain 28 94 down 7% 100%
Brinsworth Street SPS
Overflow on sewer network
Company site name
BRINSWORTH STREET/CSO
EA ID / permit
YWS00627 · 2775
Outlet location
SK4230692630 (OS grid reference) · View on Apple Maps
WFD catchment
Don from Greasborough Dyke to River Dearne (GB104027057452)
2024 spills / hours
19 / 111
Long-term average
15.2 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 94 hours spilling →
Holmes Tail Goit 13 94 down 32% 95%
Thormanby Sewage Treatment Works
Inlet overflow at sewage works
Sewage works
Thormanby
Company site name
THORMANBY/NO 2 STW
EA ID / permit
YWS00327 · 27/23/0106
Outlet location
SE4898075180 (OS grid reference) · View on Apple Maps
WFD catchment
Birdforth/Green's Bks Catch (trib of Swale) (GB104027068790)
2024 spills / hours
58 / 189
Long-term average
51.8 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 93 hours spilling →
Unnamed Trib of Birdforth Beck 43 93 down 26% 100%
Providence Nook York Road
Overflow on sewer network
Company site name
EASINGWOLD YORK RD/2 CSO
EA ID / permit
YWS00394 · 27/24/0181
Outlet location
SE5333169118 (OS grid reference) · View on Apple Maps
WFD catchment
Alne Beck from Source to River Kyle (GB104027063910)
2024 spills / hours
34 / 126
Long-term average
30.7 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 93 hours spilling →
Leasmires Drain 30 93 down 12% 100%
Valley Road North CSO
Overflow on sewer network
Company site name
VALLEY ROAD NORTH/CSO
EA ID / permit
YWS01088 · WA6003
Outlet location
SK4496494269 (OS grid reference) · View on Apple Maps
WFD catchment
Don from Greasborough Dyke to River Dearne (GB104027057452)
2024 spills / hours
36 / 87
Long-term average
36.8 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 93 hours spilling →
Herringthorpe Beck 33 93 down 8% 100%
Hook STW
Storm discharge at pumping station
Company site name
HOOK WATER LANE/SPS
EA ID / permit
YWS01886 · WRA8624
Outlet location
SE7631025520 (OS grid reference) · View on Apple Maps
WFD catchment
HUMBER UPPER (GB530402609203)
2024 spills / hours
19 / 80
Long-term average
62.5 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 92 hours spilling →
River Ouse (Tidal) 72 92 up 279% 100%
Cartmell Drive CSO
Overflow on sewer network
Company site name
CARTMELL DRIVE/CSO
EA ID / permit
YWS01577 · WRA8095
Outlet location
SE3403433424 (OS grid reference) · View on Apple Maps
WFD catchment
Wyke Beck from Source to River Aire (GB104027062880)
2024 spills / hours
26 / 69
Long-term average
26.3 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 92 hours spilling →
Wyke Beck 26 92 no change 100%
Sheepfoot Hill CSO
Overflow on sewer network
Company site name
SHEEPFOOT HILL/CSO
EA ID / permit
YWS00542 · 27/27/0156
Outlet location
SE7902571459 (OS grid reference) · View on Apple Maps
WFD catchment
Derwent from River Rye to Kirkham (GB104027068313)
2024 spills / hours
28 / 389
Long-term average
16.8 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 92 hours spilling →
River Derwent 6 92 down 79% 100%
Wass Sewage Treatment Works
Inlet overflow at sewage works
Sewage works
Wass
Company site name
WASS/NO 2 STW
EA ID / permit
YWS00498 · 27/25/0126
Outlet location
SE5597078690 (OS grid reference) · View on Apple Maps
WFD catchment
Holbeck from Source to Marrs Beck (GB104027068420)
2024 spills / hours
50 / 285
Long-term average
51.5 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 92 hours spilling →
Trib of Holbeck 24 92 down 52% 100%
Broadfield Road CSO
Overflow on sewer network
Company site name
BROADFIELD ROAD/CSO
EA ID / permit
YWS01811 · WRA8499
Outlet location
SK3470084800 (OS grid reference) · View on Apple Maps
WFD catchment
River Sheaf from Source to River Porter (GB104027057750)
2024 spills / hours
27 / 97
Long-term average
37.5 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 92 hours spilling →
River Sheaf 24 92 down 11% 100%
Huddersfield Road/South Lane CSO
Overflow on sewer network
Company site name
SOUTH LANE/CSO
EA ID / permit
YWS01903 · WRA8660
Outlet location
SE1099121470 (OS grid reference) · View on Apple Maps
WFD catchment
Calder from Ryburn Confluence to River Colne (GB104027062642)
2024 spills / hours
73 / 274
Long-term average
41.7 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 91 hours spilling →
Canker Dyke 47 91 down 36% 100%
Thearne Ferry Lane No. 2 SPS
Storm discharge at pumping station
Company site name
THEARNE FERRY LN/NO 2 SPS
EA ID / permit
YWS01115 · WA6394
Outlet location
TA0776037100 (OS grid reference) · View on Apple Maps
WFD catchment
Hull from Arram Beck to Humber (GB104026067212)
2024 spills / hours
44 / 131
Long-term average
47.8 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 91 hours spilling →
R.Hull (Oa)/Nrth Carr Drn (Ob) 38 91 down 14% 100%
Rawmarsh No 2 CSO
Overflow on sewer network
Company site name
RAWMARSH/NO 2 CSO
EA ID / permit
YWS01672 · WRA8211
Outlet location
SK4514096440 (OS grid reference) · View on Apple Maps
WFD catchment
Don from Greasborough Dyke to River Dearne (GB104027057452)
2024 spills / hours
16 / 92
Long-term average
20.5 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 91 hours spilling →
Roundwood Brook 12 91 down 25% 100%
Newsome Road CSO
Overflow on sewer network
Company site name
NEWSOME ROAD/CSO
EA ID / permit
YWS02064 · WRA9170
Outlet location
SE1470615810 (OS grid reference) · View on Apple Maps
WFD catchment
River Colne from River Holme to River Calder (GB104027062550)
2024 spills / hours
46 / 78
Long-term average
42.0 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 91 hours spilling →
River Colne 40 91 down 13% 100%
Crofton STW
Storm tank at sewage works
Sewage works
Crofton
Company site name
CROFTON/STW
EA ID / permit
YWS00093 · 2207
Outlet location
SE3629018470 (OS grid reference) · View on Apple Maps
WFD catchment
Oakenshaw Beck from Source to River Calder (GB104027062560)
2024 spills / hours
16 / 144
Long-term average
38.5 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 91 hours spilling →
Oakenshaw Beck 10 91 down 38% 100%
Masbrough Street CSO
Overflow on sewer network
Company site name
MASBROUGH STREET/CSO
EA ID / permit
YWS00711 · 3375
Outlet location
SK4206092600 (OS grid reference) · View on Apple Maps
WFD catchment
Don from Greasborough Dyke to River Dearne (GB104027057452)
2024 spills / hours
35 / 66
Long-term average
12.0 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Monitor below 90%
Sensor failure / issue · Resolved - Jun
Investigation
Env Act (SODRP) investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 91 hours spilling →
Holmes Tail Goit 36 91 up 3% 81%
CSO-Harrogate Stray
Overflow on sewer network
Company site name
STRAY ROAD/CSO
EA ID / permit
YWS01034 · QC.27/21/0026
Outlet location
SE3063054520 (OS grid reference) · View on Apple Maps
WFD catchment
Crimple Beck from Source to Park Beck (GB104027063741)
2024 spills / hours
43 / 327
Long-term average
39.3 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 91 hours spilling →
Hookstone Beck (Nidd Cat) 18 91 down 58% 100%
Pinfold Lane Recreation CSO
Overflow on sewer network
Company site name
PINFOLD LN RECREATION/CSO
EA ID / permit
YWS01536 · WRA7983
Outlet location
SE4202004500 (OS grid reference) · View on Apple Maps
WFD catchment
Dearne from Lundwood to River Dove (GB104027063172)
2024 spills / hours
45 / 82
Long-term average
51.8 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Investigation
UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 91 hours spilling →
River Dearne 42 91 down 7% 100%
Burcroft Hill SPS
Overflow on sewer network
Company site name
BURCROFT HILL/CSO
EA ID / permit
YWS01617 · WRA8153
Outlet location
SK5175099350 (OS grid reference) · View on Apple Maps
WFD catchment
Kearsley Bk (GB104027064244)
2024 spills / hours
20 / 52
Long-term average
20.3 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
No improvement action in reporting period
Volume & pollution
Estimate from 91 hours spilling →
Kearsley Brook 36 91 up 80% 98%
Hazelwood Street CSO
Overflow on sewer network
Company site name
HAZELWOOD STREET/CSO
EA ID / permit
YWS01320 · WADC984
Outlet location
SD9474024327 (OS grid reference) · View on Apple Maps
WFD catchment
Calder from Walsden Water to Colden Water (GB104027062650)
2024 spills / hours
36 / 96
Long-term average
48.0 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Monitor below 90%
Comms failure / issue · Resolved - January after reporting year
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 90 hours spilling →
River Calder 37 90 up 3% 82%
Airedale STW
Inlet overflow at sewage works
Sewage works
Airedale
Company site name
AIREDALE/STW
EA ID / permit
YWS01325 · WRA6658
Outlet location
SE4690027000 (OS grid reference) · View on Apple Maps
WFD catchment
Aire from Wyke Beck to Fryston Beck (GB104027063036)
2024 spills / hours
4 / 11
Long-term average
62.7 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
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 90 hours spilling →
River Aire 53 90 up 1225% 62%
Cold Kirby NO2 STW
Inlet overflow at sewage works
Sewage works
Cold Kirby
Company site name
COLD KIRBY/NO 2 STW
EA ID / permit
YWS01027 · NPSWQD009944
Outlet location
SE5352084630 (OS grid reference) · View on Apple Maps
WFD catchment
Spring Wood Catchment (Trib of Rye) (GB104027068450)
2024 spills / hours
0 / 0.0
Long-term average
2.3 spills a year (monitored since 2020)
Monitor below 90%
Sensor failure / issue · Resolved - January after reporting year
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 90 hours spilling →
Unnamed Trib Grass Keld 14 90 up from 0 4%
Ballotini Works CSO
Overflow on sewer network
Company site name
BALLOTINI WORKS/CSO
EA ID / permit
YWS01629 · WRA8165
Outlet location
SE3596406126 (OS grid reference) · View on Apple Maps
WFD catchment
River Dearne from Cawthorne Dyke to Lundwood STW (GB104027063171)
2024 spills / hours
40 / 69
Long-term average
42.3 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 90 hours spilling →
Measborough Dike 36 90 down 10% 100%
Stirling Cresent NO1 SPS
Storm discharge at pumping station
Company site name
STIRLING CRES/NO 1 CSO
EA ID / permit
YWS01479 · WRA7812
Outlet location
SE1968831248 (OS grid reference) · View on Apple Maps
WFD catchment
Low/Wortley/Pudsey Bks from Source to Milshaw Beck (GB104027062830)
2024 spills / hours
21 / 83
Long-term average
31.8 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 90 hours spilling →
Holme Beck 18 90 down 14% 100%
Hasland Horns Bridge CSO
Overflow on sewer network
Company site name
HASLAND HORNS BRIDGE/CSO
EA ID / permit
YWS00680 · 3209
Outlet location
SK3882070520 (OS grid reference) · View on Apple Maps
WFD catchment
Rother, Spittal Brook to Doe Lea (GB104027057771)
2024 spills / hours
28 / 96
Long-term average
11.8 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 89 hours spilling →
River Rother 22 89 down 21% 100%
Elland Lowfields SPS
Storm discharge at pumping station
Company site name
ELLAND LOWFIELDS/SPS
EA ID / permit
YWS00665 · 3111
Outlet location
SE1126021800 (OS grid reference) · View on Apple Maps
WFD catchment
Calder from Ryburn Confluence to River Colne (GB104027062642)
2024 spills / hours
52 / 120
Long-term average
58.6 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 89 hours spilling →
River Calder 38 89 down 27% 100%
Daisy Street CSO
Overflow on sewer network
Company site name
DAISY STREET/CSO
EA ID / permit
YWS02065 · WRA9171
Outlet location
SE1516316663 (OS grid reference) · View on Apple Maps
WFD catchment
River Colne from River Holme to River Calder (GB104027062550)
2024 spills / hours
39 / 80
Long-term average
54.3 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Monitor below 90%
Sensor failure / issue · Resolved - Mar
Investigation
Env Act (SODRP) investigation completed, UWWTR investigation completed, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 89 hours spilling →
River Colne 31 89 down 21% 87%
Skidby STW
Storm tank at sewage works
Sewage works
Skidby
Company site name
SKIDBY/STW
EA ID / permit
YWS01119 · WA6412
Outlet location
TA0179033970 (OS grid reference) · View on Apple Maps
WFD catchment
Beverley and Barmston Drain (GB104026067211)
2024 spills / hours
18 / 119
Long-term average
31.8 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 89 hours spilling →
Tributary of Mill Beck 14 89 down 22% 100%
Knottingley Common Lane SPS
Storm discharge at pumping station
Company site name
KNOTTINGLEY COMMON LN/CSO
EA ID / permit
YWS01973 · WRA8781
Outlet location
SE5091423767 (OS grid reference) · View on Apple Maps
WFD catchment
New Fleet Drain from source to R Went (GB104027063411)
2024 spills / hours
35 / 93
Long-term average
37.7 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 89 hours spilling →
Town Dyke 33 89 down 6% 100%
Ferry Road CSO
Overflow on sewer network
Company site name
FERRY ROAD/CSO
EA ID / permit
YWS02222 · YWUCD2/53
Outlet location
TA0345426002 (OS grid reference) · View on Apple Maps
WFD catchment
Fleet Drain (GB104026066750)
2024 spills / hours
42 / 86
Long-term average
61.8 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 89 hours spilling →
Fleet Drain 40 89 down 5% 100%
Meltham CSO
Overflow on sewer network
Company site name
MELTHAM/CSO
EA ID / permit
YWS00129 · 2378
Outlet location
SE1090511160 (OS grid reference) · View on Apple Maps
WFD catchment
Mag Brook from Source to River Holme (GB104027063590)
2024 spills / hours
10 / 30
Long-term average
17.3 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Monitor below 90%
Comms failure / issue · Resolved - Jul
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 88 hours spilling →
Meltham Dike 37 88 up 270% 68%
Jubilee Terrace CSO
Overflow on sewer network
Company site name
JUBILEE TERRACE/CSO
EA ID / permit
YWS00866 · C4958
Outlet location
SE5899052540 (OS grid reference) · View on Apple Maps
WFD catchment
Ouse from River Nidd to Stillingfleet Beck (GB104027069593)
2024 spills / hours
17 / 68
Long-term average
26.3 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 88 hours spilling →
River Ouse 14 88 down 18% 100%
Midland Road CSO
Overflow on sewer network
Company site name
MIDLAND ROAD/CSO
EA ID / permit
YWS00990 · EPRUP3226GB
Outlet location
SE1573038486 (OS grid reference) · View on Apple Maps
WFD catchment
Aire (R Worth to Gill Beck) (GB104027063034)
2024 spills / hours
48 / 169
Long-term average
36.8 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 88 hours spilling →
River Aire 24 88 down 50% 100%
Lythe Bank SPS
Storm discharge at pumping station
Company site name
LYTHE BANK/CSO
EA ID / permit
YWS00579 · 27/29/0042
Outlet location
NZ8608013130 (OS grid reference) · View on Apple Maps
WFD catchment
Yorkshire North (GB650401500004)
Bathing water
Sandsend
2024 spills / hours
47 / 523
Long-term average
14.3 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 88 hours spilling →
North Sea 8 88 down 83% 100%
Garmancarr SSO
Overflow on sewer network
Company site name
WISTOW GARMAN CARR/CSO
EA ID / permit
YWS01316 · WADC946
Outlet location
SE5960034900 (OS grid reference) · View on Apple Maps
WFD catchment
Holmes Dike catchment (trib of Ouse) (GB104027063650)
2024 spills / hours
30 / 83
Long-term average
27.3 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 88 hours spilling →
Garmancarr Dike 25 88 down 17% 100%
Kirk Hammerton SSO
Overflow on sewer network
Company site name
CHAPEL STREET YORK/CSO
EA ID / permit
YWS02227 · YWUCD2/61
Outlet location
SE4680055300 (OS grid reference) · View on Apple Maps
WFD catchment
River Nidd from Crimple Beck to River Ouse (GB104027068292)
2024 spills / hours
13 / 41
Long-term average
9.0 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Investigation
Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 88 hours spilling →
Kirk Hammerton Beck 33 88 up 154% 97%
The Wheatcroft Short Sea Outfall
Storm discharge at pumping station
Company site name
WHEATCROFT/CSO
EA ID / permit
YWS01052 · QR.27/27/0029
Outlet location
TA0604086350 (OS grid reference) · View on Apple Maps
WFD catchment
Yorkshire North (GB650401500004)
Bathing water
Scarborough South Bay
2024 spills / hours
21 / 258
Long-term average
27.7 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 87 hours spilling →
The North Sea 11 87 down 48% 100%
Endeavour Wharf Pumping Station
Storm discharge at pumping station
Company site name
ENDEAVOUR WHARF/CSO
EA ID / permit
YWS00576 · 27/29/0040
Outlet location
NZ9053011620 (OS grid reference) · View on Apple Maps
WFD catchment
Yorkshire North (GB650401500004)
Bathing water
Whitby
2024 spills / hours
58 / 226
Long-term average
32.2 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 87 hours spilling →
The North Sea and River Esk 37 87 down 36% 100%
Carleton West Street SPS
Storm discharge at pumping station
Company site name
CARLETON WEST ST/CSO
EA ID / permit
YWS00635 · 2837
Outlet location
SD9703950322 (OS grid reference) · View on Apple Maps
WFD catchment
Aire (Eshton Beck to R Worth) (GB104027063033)
2024 spills / hours
74 / 206
Long-term average
63.8 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 87 hours spilling →
Carleton Beck 45 87 down 39% 100%
Wheldon Road CSO
Overflow on sewer network
Company site name
WHELDON ROAD/CSO
EA ID / permit
YWS01639 · WRA8175
Outlet location
SE4304025958 (OS grid reference) · View on Apple Maps
WFD catchment
Aire from Wyke Beck to Fryston Beck (GB104027063036)
2024 spills / hours
59 / 200
Long-term average
51.8 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Investigation
Env Act (SODRP) investigation ongoing
Improvement
UWWTR improvement ongoing
Volume & pollution
Estimate from 87 hours spilling →
River Aire 38 87 down 36% 100%
Lupset SPS
Storm discharge at pumping station
Company site name
LUPSET/CSO
EA ID / permit
YWS01487 · WRA7896
Outlet location
SE3072018570 (OS grid reference) · View on Apple Maps
WFD catchment
Calder from River Colne to River Chald (GB104027062631)
2024 spills / hours
17 / 47
Long-term average
13.3 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 87 hours spilling →
Lupset Beck 20 87 up 18% 100%
Bridge Inn Ford CSO
Overflow on sewer network
Company site name
BRIDGE INN FORD/CSO
EA ID / permit
YWS02105 · WRA9211
Outlet location
SK4020680368 (OS grid reference) · View on Apple Maps
WFD catchment
The Moss from Source to River Rother (GB104027057720)
2024 spills / hours
37 / 82
Long-term average
63.7 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 87 hours spilling →
The Moss 27 87 down 27% 100%
Dewsbury Moor CSO
Overflow on sewer network
Company site name
DEWSBURY MOOR/CSO
EA ID / permit
YWS00704 · 3342
Outlet location
SE2232621626 (OS grid reference) · View on Apple Maps
WFD catchment
Spen Beck from Source to River Calder (GB104027062710)
2024 spills / hours
39 / 87
Long-term average
39.2 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 87 hours spilling →
River Spen (via Public Sewer) 38 87 down 3% 100%
Coach Road Baildon CSO
Overflow on sewer network
Company site name
COACH ROAD BAILDON/CSO
EA ID / permit
YWS01795 · WRA8472
Outlet location
SE1444038140 (OS grid reference) · View on Apple Maps
WFD catchment
Aire (R Worth to Gill Beck) (GB104027063034)
2024 spills / hours
53 / 178
Long-term average
48.3 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation completed, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 86 hours spilling →
River Aire 35 86 down 34% 100%
Towngate Holmfirth 2 CSO
Overflow on sewer network
Company site name
TOWNGATE HOLMFIRTH/2 CSO
EA ID / permit
YWS01776 · WRA8447
Outlet location
SE1424708232 (OS grid reference) · View on Apple Maps
WFD catchment
River Holme from Source to New Mill Dike (GB104027057600)
2024 spills / hours
25 / 56
Long-term average
30.7 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 86 hours spilling →
River Holme 22 86 down 12% 100%
Birkenshaw CSO
Overflow on sewer network
Company site name
BIRKENSHAW/NO 4 CSO
EA ID / permit
YWS01803 · WRA8486
Outlet location
SE2112026890 (OS grid reference) · View on Apple Maps
WFD catchment
Batley Beck from Source to River Calder (GB104027062670)
2024 spills / hours
12 / 80
Long-term average
12.0 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 86 hours spilling →
Nutter Beck 10 86 down 17% 100%
Permit applied for
Overflow on sewer network
Company site name
STANNINGTON ROAD/NO 2 CSO
EA ID / permit
YWS00804 · Permit applied for
Outlet location
SK3250789293 (OS grid reference) · View on Apple Maps
WFD catchment
Rivelin from Source to River Loxley (GB104027057340)
2024 spills / hours
53 / 92
Long-term average
65.7 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 86 hours spilling →
Permit applied for 49 86 down 8% 100%
Gasworks Street CSO
Overflow on sewer network
Company site name
GASWORKS STREET/CSO
EA ID / permit
YWS02072 · WRA9178
Outlet location
SE1515417340 (OS grid reference) · View on Apple Maps
WFD catchment
River Colne from River Holme to River Calder (GB104027062550)
2024 spills / hours
41 / 66
Long-term average
27.8 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 86 hours spilling →
River Colne 49 86 up 20% 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.