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
Glen Bridge Combined Sewer Overflow
Overflow on sewer network
Company site name
GLEN BRIDGE/CSO
EA ID / permit
YWS01534 · WRA7981
Outlet location
SK3115087828 (OS grid reference) · View on Apple Maps
WFD catchment
Rivelin from Source to River Loxley (GB104027057340)
2024 spills / hours
50 / 153
Long-term average
23.8 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 86 hours spilling →
River Rivelin 36 86 down 28% 99%
Aughton (Treeton Lane) SPS
Overflow on sewer network
Company site name
AUGHTON/CSO
EA ID / permit
YWS01938 · WRA8727
Outlet location
SK4495087110 (OS grid reference) · View on Apple Maps
WFD catchment
Ulley Brook from Source to River Rother (GB104027057740)
2024 spills / hours
27 / 208
Long-term average
24.5 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 86 hours spilling →
Tributary of Ulley Brook 21 86 down 22% 100%
Yws Unknown Sites Default
Storm discharge at pumping station
Company site name
WATER END/CSO
EA ID / permit
YWS00097 · 2218
Outlet location
SE3774096520 (OS grid reference) · View on Apple Maps
WFD catchment
Willow Beck Catchment (trib of Wiske) (GB104027069540)
2024 spills / hours
36 / 103
Long-term average
14.8 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 85 hours spilling →
Trib Wiske/Swale 25 85 down 31% 100%
Yws Unknown Sites Default
Overflow on sewer network
Company site name
RAVENSBRIDGE IND EST/CSO
EA ID / permit
YWS00647 · 2921
Outlet location
SE2404020959 (OS grid reference) · View on Apple Maps
WFD catchment
Calder from River Colne to River Chald (GB104027062631)
2024 spills / hours
32 / 109
Long-term average
37.0 spills a year (monitored since 2020)
Monitor below 90%
Sensor failure / issue · Resolved - Mar
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 85 hours spilling →
River Calder 21 85 down 34% 63%
Heathcote Drive CSO
Overflow on sewer network
Company site name
HEATHCOTE DRIVE/CSO
EA ID / permit
YWS00651 · 2952
Outlet location
SK3994070040 (OS grid reference) · View on Apple Maps
WFD catchment
Spital/Calow/Muster Brook (GB104027057640)
2024 spills / hours
27 / 103
Long-term average
24.0 spills a year (monitored since 2020)
Monitor below 90%
Comms failure / issue · Resolved - Sep
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 85 hours spilling →
Spital Brook 14 85 down 48% 75%
Steeton CSO
Overflow on sewer network
Company site name
STEETON/CSO
EA ID / permit
YWS01633 · WRA8169
Outlet location
SE0361045030 (OS grid reference) · View on Apple Maps
WFD catchment
Bradford Beck (Clayton Bk to R Aire) (GB104027063033)
2024 spills / hours
65 / 122
Long-term average
68.3 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Monitor below 90%
Sensor failure / issue · Resolved - Apr
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 85 hours spilling →
Steeton Beck 51 85 down 22% 68%
Roseville Road CSO
Overflow on sewer network
Company site name
ROSEVILLE ROAD/CSO
EA ID / permit
YWS01637 · WRA8173
Outlet location
SE3092134375 (OS grid reference) · View on Apple Maps
WFD catchment
Meanwood Beck from Source to River Aire (GB104027062900)
2024 spills / hours
23 / 41
Long-term average
30.2 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Monitor below 90%
Sensor failure / issue · Resolved - Jul
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 85 hours spilling →
Lady Beck Culverted 35 85 up 52% 76%
Fisher End SSO
Storm discharge at pumping station
Company site name
FISHER END/CSO
EA ID / permit
YWS01315 · WADC932
Outlet location
SE5095060110 (OS grid reference) · View on Apple Maps
WFD catchment
Ouse from River Ure to River Nidd (GB104027069592)
2024 spills / hours
32 / 75
Long-term average
25.3 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 85 hours spilling →
River Ouse 46 85 up 44% 100%
Heptonstall Road CSO
Overflow on sewer network
Company site name
HEPTONSTALL ROAD/CSO
EA ID / permit
YWS01748 · WRA8417
Outlet location
SD9914927765 (OS grid reference) · View on Apple Maps
WFD catchment
Hebden Water from Widdop Beck to R Calder (GB104027062731)
2024 spills / hours
22 / 67
Long-term average
38.7 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 85 hours spilling →
Hebden Water 30 85 up 36% 100%
Armitage Fold CSO
Overflow on sewer network
Company site name
ARMITAGE FOLD/CSO
EA ID / permit
YWS00742 · 3658
Outlet location
SE1336213819 (OS grid reference) · View on Apple Maps
WFD catchment
Holme from New Mill Dike to R Colne (GB104027063301)
2024 spills / hours
57 / 89
Long-term average
62.3 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 85 hours spilling →
River Holme 54 85 down 5% 100%
Gledhow Lane CSO
Overflow on sewer network
Company site name
GLEDHOW LANE/CSO
EA ID / permit
YWS01604 · WRA8133
Outlet location
SE3131137146 (OS grid reference) · View on Apple Maps
WFD catchment
Meanwood Beck from Source to River Aire (GB104027062900)
2024 spills / hours
37 / 71
Long-term average
49.7 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 85 hours spilling →
Gledhow Beck 41 85 up 11% 92%
Foulridge CSO
Overflow on sewer network
Company site name
FOULRIDGE/CSO
EA ID / permit
YWS00102 · 2240
Outlet location
SD8886242637 (OS grid reference) · View on Apple Maps
WFD catchment
Earby Beck from Source to Langber beck (GB104027062980)
2024 spills / hours
75 / 177
Long-term average
84.0 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Investigation
UWWTR investigation completed, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 84 hours spilling →
County Dyke 56 84 down 25% 98%
Carlisle Street CSO
Overflow on sewer network
Company site name
CARLISLE STREET/CSO
EA ID / permit
YWS00682 · 3232
Outlet location
SK4638298985 (OS grid reference) · View on Apple Maps
WFD catchment
Don from Greasborough Dyke to River Dearne (GB104027057452)
2024 spills / hours
43 / 105
Long-term average
41.8 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 84 hours spilling →
Sheff & South Yorks Nav Canal 27 84 down 37% 100%
Thorpe Hesley CSO
Overflow on sewer network
Company site name
THORPE HESLEY/CSO
EA ID / permit
YWS00731 · 3541
Outlet location
SK3816196204 (OS grid reference) · View on Apple Maps
WFD catchment
Greasbrough Dike from Source to River Don (GB104027057420)
2024 spills / hours
43 / 84
Long-term average
36.5 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 84 hours spilling →
Thorpe Dyke 38 84 down 12% 100%
Calverley East No 2 CSO
Overflow on sewer network
Company site name
CALVERLEY EAST/NO 2 CSO
EA ID / permit
YWS01856 · WRA8566
Outlet location
SE2098337084 (OS grid reference) · View on Apple Maps
WFD catchment
Aire from Gill Beck (Baildon) to Wyke Beck (GB104027063035)
2024 spills / hours
56 / 95
Long-term average
52.3 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 84 hours spilling →
Leeds & Liverpool Canal 52 84 down 7% 95%
Pollard Street No 2 CSO
Overflow on sewer network
Company site name
POLLARD STREET/NO 2 CSO
EA ID / permit
YWS01777 · WRA8448
Outlet location
SE1483022550 (OS grid reference) · View on Apple Maps
WFD catchment
Calder from Ryburn Confluence to River Colne (GB104027062642)
2024 spills / hours
34 / 84
Long-term average
34.3 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 83 hours spilling →
River Calder 29 83 down 15% 100%
Hardings Lane CSO
Overflow on sewer network
Company site name
HARDINGS LANE/CSO
EA ID / permit
YWS01018 · NPSWQD008018
Outlet location
SE0144545292 (OS grid reference) · View on Apple Maps
WFD catchment
Aire (Eshton Beck to R Worth) (GB104027063033)
2024 spills / hours
38 / 126
Long-term average
39.8 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 83 hours spilling →
Clvrt Tributary of River Aire 34 83 down 11% 100%
Hatfield Woodhouse STW
Storm tank at sewage works
Sewage works
Hatfield Woodhouse
Company site name
HATFIELD WOODHOUSE/SPS
EA ID / permit
YWS01084 · T/83/45453/R
Outlet location
SE6857008180 (OS grid reference) · View on Apple Maps
WFD catchment
Hatfield Waste Drain Catchment (trib of Torne/Three Rivers) (GB104028064330)
2024 spills / hours
37 / 179
Long-term average
37.3 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 83 hours spilling →
The Hatfield Waste Drain 17 83 down 54% 100%
Rugby Field Richmond CSO
Overflow on sewer network
Company site name
RUGBY FIELD RICHMOND/CSO
EA ID / permit
YWS00009 · 1114
Outlet location
NZ1787800815 (OS grid reference) · View on Apple Maps
WFD catchment
Swale from Clapgate Beck to Bedale Beck (GB104027069122)
2024 spills / hours
63 / 125
Long-term average
57.0 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 83 hours spilling →
River Swale 47 83 down 25% 100%
Calow Oaks Farm CSO
Overflow on sewer network
Company site name
CALOW OAKS FARM/NO 2 CSO
EA ID / permit
YWS01618 · WRA8154
Outlet location
SK4121070800 (OS grid reference) · View on Apple Maps
WFD catchment
Spital/Calow/Muster Brook (GB104027057640)
2024 spills / hours
68 / 237
Long-term average
55.8 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing
Improvement
Operational improvement completed
Volume & pollution
Estimate from 83 hours spilling →
Trib of Calow Brook 26 83 down 62% 100%
Engine Lane Sewage Pumping Station
Storm discharge at pumping station
Company site name
ENGINE LANE/CSO
EA ID / permit
YWS00778 · 3836
Outlet location
SE4075008860 (OS grid reference) · View on Apple Maps
WFD catchment
Grimethorpe Dike from Source to River Dearne (GB104027063180)
2024 spills / hours
3 / 14
Long-term average
6.4 spills a year (monitored since 2020)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 83 hours spilling →
Grimethorpe Dyke 16 83 up 433% 94%
Ashenhurst Road
Overflow on sewer network
Company site name
ASHENHURST ROAD/CSO
EA ID / permit
YWS01275 · WADC682
Outlet location
SD9312224854 (OS grid reference) · View on Apple Maps
WFD catchment
Calder from Source to Walsden Water (GB104027062660)
2024 spills / hours
75 / 189
Long-term average
43.5 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 83 hours spilling →
River Calder 40 83 down 47% 100%
Black Swan CSO
Overflow on sewer network
Company site name
BLACK SWAN/CSO
EA ID / permit
YWS01282 · WADC722
Outlet location
SE2995051338 (OS grid reference) · View on Apple Maps
WFD catchment
Crimple Beck from Source to Park Beck (GB104027063741)
2024 spills / hours
25 / 75
Long-term average
9.8 spills a year (monitored since 2020)
Investigation
Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 83 hours spilling →
Crimple Beck Or River Crimple 27 83 up 8% 99%
Dearne Hall Road CSO
Overflow on sewer network
Company site name
DEARNE HALL ROAD/CSO
EA ID / permit
YWS01892 · WRA8637
Outlet location
SE3195009080 (OS grid reference) · View on Apple Maps
WFD catchment
River Dearne from Cawthorne Dyke to Lundwood STW (GB104027063171)
2024 spills / hours
18 / 48
Long-term average
32.8 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation completed, UWWTR investigation completed, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 83 hours spilling →
River Dearne 25 83 up 39% 100%
Kirkgate Chantry Bridge CSO
Overflow on sewer network
Company site name
KIRKGATE CHANTRY BRDG/CSO
EA ID / permit
YWS00844 · C4245
Outlet location
SE3378320018 (OS grid reference) · View on Apple Maps
WFD catchment
Calder from River Chald to River Aire (GB104027062632)
2024 spills / hours
10 / 20
Long-term average
17.7 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 82 hours spilling →
River Calder via Pumped Outlet 23 82 up 130% 98%
Carrs Sewage Pumping Station
Storm discharge at pumping station
Company site name
RUSWARP CARRS/SPS
EA ID / permit
YWS01293 · WADC78
Outlet location
NZ8790008600 (OS grid reference) · View on Apple Maps
WFD catchment
Esk from Sleddale Beck to Ruswarp (GB104027068150)
2024 spills / hours
27 / 309
Long-term average
17.3 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 82 hours spilling →
Ditch 13 82 down 52% 100%
Shipyard Road
Overflow on sewer network
Company site name
SHIPYARD ROAD/CSO
EA ID / permit
YWS00387 · 27/24/0156
Outlet location
SE6207032140 (OS grid reference) · View on Apple Maps
WFD catchment
Ouse from R Wharfe to Upper Humber (GB104027064270)
2024 spills / hours
35 / 188
Long-term average
84.3 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing
Improvement
Operational improvement completed
Volume & pollution
Estimate from 82 hours spilling →
Culverted Brayton Junction 22 82 down 37% 100%
Springfield Lane CSO
Overflow on sewer network
Company site name
MANOR ROAD/CSO
EA ID / permit
YWS02125 · WRA9236
Outlet location
SE1719012793 (OS grid reference) · View on Apple Maps
WFD catchment
Fenay beck from Source to River Colne (GB104027063340)
2024 spills / hours
2 / 24
Long-term average
6.3 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 82 hours spilling →
Tributary of Range Dike 7 82 up 250% 100%
Cherry Burton STW
Storm tank at sewage works
Sewage works
Cherry Burton
Company site name
CHERRY BURTON/STW
EA ID / permit
YWS01110 · WA6378
Outlet location
SE9929541151 (OS grid reference) · View on Apple Maps
WFD catchment
High Hunsley to Arram Area (GB104026066841)
2024 spills / hours
78 / 959
Long-term average
45.5 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 81 hours spilling →
Tributary of Catchwater Drain 13 81 down 83% 100%
Birches Lane SPS
Storm discharge at pumping station
Company site name
BIRCHES LANE/CSO
EA ID / permit
YWS01246 · WADC39
Outlet location
SK3664079810 (OS grid reference) · View on Apple Maps
WFD catchment
The Moss from Source to River Rother (GB104027057720)
2024 spills / hours
37 / 83
Long-term average
35.5 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 81 hours spilling →
Tributary of the River Moss 31 81 down 16% 100%
Basin Bridge SPS
Storm discharge at pumping station
Company site name
BASIN BRIDGE/CSO
EA ID / permit
YWS01449 · WRA7617
Outlet location
TA1712025070 (OS grid reference) · View on Apple Maps
WFD catchment
HUMBER LOWER (GB530402609201)
2024 spills / hours
22 / 120
Long-term average
11.0 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 81 hours spilling →
R. Humber & Burstwick Drain 11 81 down 50% 100%
Reeth Road No 2 CSO
Overflow on sewer network
Company site name
REETH ROAD/NO 2 CSO
EA ID / permit
YWS00357 · 27/23/0227
Outlet location
NZ1623700985 (OS grid reference) · View on Apple Maps
WFD catchment
Swale from Clapgate Beck to Bedale Beck (GB104027069122)
2024 spills / hours
58 / 151
Long-term average
63.2 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 81 hours spilling →
River Swale 48 81 down 17% 100%
South Parkway CSO
Overflow on sewer network
Company site name
SOUTH PARKWAY/CSO
EA ID / permit
YWS02038 · WRA9142
Outlet location
SE3426935278 (OS grid reference) · View on Apple Maps
WFD catchment
Wyke Beck from Source to River Aire (GB104027062880)
2024 spills / hours
49 / 60
Long-term average
24.3 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 81 hours spilling →
Wyke Beck 51 81 up 4% 100%
Smithies Lane Barnsley CSO
Overflow on sewer network
Company site name
SMITHIES LN BARNSLEY/CSO
EA ID / permit
YWS01514 · WRA7958
Outlet location
SE3479007990 (OS grid reference) · View on Apple Maps
WFD catchment
River Dearne from Cawthorne Dyke to Lundwood STW (GB104027063171)
2024 spills / hours
27 / 23
Long-term average
24.7 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 80 hours spilling →
Tributary of the River Dearne 31 80 up 15% 100%
Village Place No 2CSO
Overflow on sewer network
Company site name
VILLAGE PLACE/NO 2 CSO
EA ID / permit
YWS01924 · WRA8696
Outlet location
SE2748134221 (OS grid reference) · View on Apple Maps
WFD catchment
Aire from Gill Beck (Baildon) to Wyke Beck (GB104027063035)
2024 spills / hours
57 / 85
Long-term average
45.5 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 79 hours spilling →
River Aire 43 79 down 25% 99%
Rainbow Avenue SPS
Storm discharge at pumping station
Company site name
RAINBOW AVENUE/CSO
EA ID / permit
YWS02103 · WRA9209
Outlet location
SK4270783820 (OS grid reference) · View on Apple Maps
WFD catchment
Shire Brook (GB104027057773)
2024 spills / hours
12 / 69
Long-term average
63.2 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 79 hours spilling →
Tributary of Shire Brook 8 79 down 33% 100%
Thornton Le Dale STW
Storm tank at sewage works
Sewage works
Thornton Le Dale
Company site name
THORNTON LE DALE/STW
EA ID / permit
YWS00516 · 27/27/0063
Outlet location
SE8331681851 (OS grid reference) · View on Apple Maps
WFD catchment
Thornton/Dalby/Staindale from Source to the Syme (GB104027067950)
2024 spills / hours
159 / 3,419
Long-term average
68.7 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 79 hours spilling →
Thornton Beck 11 79 down 93% 100%
Jumples CSO
Overflow on sewer network
Company site name
JUMPLES/CSO
EA ID / permit
YWS01606 · WRA8135
Outlet location
SE0645327890 (OS grid reference) · View on Apple Maps
WFD catchment
Hebble Brook from Source to River Calder (GB104027062780)
2024 spills / hours
48 / 89
Long-term average
57.5 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Monitor below 90%
Power failure / issue · Resolved - Apr
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 79 hours spilling →
Hebble Brook 45 79 down 6% 89%
Pasture Lane No 2 CSO
Overflow on sewer network
Company site name
PASTURE LANE/NO 2 CSO
EA ID / permit
YWS01659 · WRA8200
Outlet location
SE1290531821 (OS grid reference) · View on Apple Maps
WFD catchment
Clayton Beck (Source to Bradford Bk) (GB104027062861)
2024 spills / hours
52 / 89
Long-term average
61.0 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Monitor below 90%
Sensor failure / issue · Resolved - Feb
Investigation
UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 79 hours spilling →
Bull Greave Beck (Culverted) 37 79 down 29% 85%
Sharow SPS
Storm discharge at pumping station
Company site name
SHAROW/CSO
EA ID / permit
YWS00303 · 27/22/0094
Outlet location
SE3209471922 (OS grid reference) · View on Apple Maps
WFD catchment
Ure from Thornton Steward Beck to River Skell (GB104027069461)
2024 spills / hours
12 / 38
Long-term average
5.7 spills a year (monitored since 2020)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 79 hours spilling →
River Ure 22 79 up 83% 100%
Town Street Sheffield CSO
Overflow on sewer network
Company site name
SHEFFIELD ROAD WORKS/CSO
EA ID / permit
YWS00803 · 665
Outlet location
SK4014091540 (OS grid reference) · View on Apple Maps
WFD catchment
Don from River Don Works to River Rother (GB104027057413)
2024 spills / hours
27 / 49
Long-term average
12.0 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Investigation
Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 78 hours spilling →
Don 32 78 up 19% 100%
Dalton Brook CSO
Overflow on sewer network
Company site name
DALTON BROOK/CSO
EA ID / permit
YWS00756 · 3742
Outlet location
SK4559094480 (OS grid reference) · View on Apple Maps
WFD catchment
Don from Greasborough Dyke to River Dearne (GB104027057452)
2024 spills / hours
39 / 226
Long-term average
33.8 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 78 hours spilling →
Dalton Brook 16 78 down 59% 100%
Whiteley Woods CSO
Overflow on sewer network
Company site name
WHITELEY WOODS/CSO
EA ID / permit
YWS01822 · WRA8517
Outlet location
SK3214585886 (OS grid reference) · View on Apple Maps
WFD catchment
River Porter from Source to River Sheaf (GB104027057760)
2024 spills / hours
32 / 86
Long-term average
35.7 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 78 hours spilling →
Porter Brook 27 78 down 16% 100%
Bellerby Sewage Treatment Works
Inlet overflow at sewage works
Sewage works
Bellerby
Company site name
BELLERBY/STW
EA ID / permit
YWS00366 · 27/23/0265
Outlet location
SE1205092780 (OS grid reference) · View on Apple Maps
WFD catchment
Bedale/Newton/Burton Bk from Source to Brompton Bk (GB104027068940)
2024 spills / hours
13 / 39
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 78 hours spilling →
Bellerby Beck 32 78 up 146% 100%
Rufforth STW
Inlet overflow at sewage works
Sewage works
Rufforth
Company site name
RUFFORTH/STW
EA ID / permit
YWS00430 · 27/24/0337
Outlet location
SE5368352263 (OS grid reference) · View on Apple Maps
WFD catchment
The Foss/Moor Drain from Source to Foss Dike (GB104027063730)
2024 spills / hours
26 / 268
Long-term average
17.0 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 78 hours spilling →
Smawith Dike 6 78 down 77% 100%
Harmby Combined Sewer Overflow
Overflow on sewer network
Company site name
HARMBY/CSO
EA ID / permit
YWS00307 · 27/22/0106
Outlet location
SE1303089380 (OS grid reference) · View on Apple Maps
WFD catchment
Ure from Mill Beck to Thornton Steward Beck (GB104027069464)
2024 spills / hours
31 / 100
Long-term average
33.7 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 77 hours spilling →
Harmby Beck 29 77 down 6% 97%
Hunmanby Gap SPS
Storm discharge at pumping station
Company site name
HUNMANBY GAP/CSO
EA ID / permit
YWS01223 · WADC228
Outlet location
TA1310077210 (OS grid reference) · View on Apple Maps
WFD catchment
Not part of a WFD catchment
Bathing water
Reighton
2024 spills / hours
30 / 105
Long-term average
14.8 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 77 hours spilling →
North Sea via Reighton Gill 27 77 down 10% 100%
Runswick Bay SPS
Storm discharge at pumping station
Company site name
RUNSWICK BAY LOWER/CSO
EA ID / permit
YWS00584 · 27/29/0051
Outlet location
NZ8135016550 (OS grid reference) · View on Apple Maps
WFD catchment
Yorkshire North (GB650401500004)
Bathing water
Runswick Bay
2024 spills / hours
32 / 463
Long-term average
13.8 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 77 hours spilling →
North Sea 10 77 down 69% 100%
Prince of Wales Public Sewer
Overflow on sewer network
Company site name
RAVENCARR ROAD/CSO
EA ID / permit
YWS01683 · EPR/RB3791NK
Outlet location
SK3931087310 (OS grid reference) · View on Apple Maps
WFD catchment
Car Brook from Source to River Don (GB104027057360)
2024 spills / hours
30 / 61
Long-term average
27.3 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 77 hours spilling →
Car Brook (via Public Sewer) 32 77 up 7% 100%
Gowdall Pumping Station CSO
Storm discharge at pumping station
Company site name
GOWDALL/CSO
EA ID / permit
YWS00055 · EPRQB3697VB
Outlet location
SE6254522713 (OS grid reference) · View on Apple Maps
WFD catchment
Aire from Fryston Beck to River Ouse (GB104027063037)
2024 spills / hours
58 / 131
Long-term average
18.5 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 76 hours spilling →
Tidal River Aire 30 76 down 48% 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.