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
Springfield Avenue 2 CSO
Overflow on sewer network
Company site name
SPRINGFIELD AVENUE/2 CSO
EA ID / permit
YWS01373 · WRA7343
Outlet location
TA1819066800 (OS grid reference) · View on Apple Maps
WFD catchment
Yorkshire South (GB640402491000)
Bathing water
Bridlington South Beach
2024 spills / hours
26 / 36
Long-term average
11.7 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 53 hours spilling →
Gypsey Race 39 53 up 50% 100%
Town Street Sheffield CSO
Overflow on sewer network
Company site name
ST LAWRENCE ROAD/CSO
EA ID / permit
YWS00801 · 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
14 / 21
Long-term average
9.7 spills a year (monitored since 2020)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 53 hours spilling →
Don 27 53 up 93% 100%
Seagrave Crescent 2 CSO
Overflow on sewer network
Company site name
SEAGRAVE CRESCENT/2 CSO
EA ID / permit
YWS01881 · WRA8608
Outlet location
SK3851483411 (OS grid reference) · View on Apple Maps
WFD catchment
Shire Brook (GB104027057773)
2024 spills / hours
29 / 55
Long-term average
38.5 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 53 hours spilling →
Shire Brook 27 53 down 7% 100%
SSO at Goldsborough
Storm discharge at pumping station
Company site name
GOLDSBOROUGH/CSO
EA ID / permit
YWS00230 · 27/21/0119
Outlet location
SE3890056100 (OS grid reference) · View on Apple Maps
WFD catchment
Gundrifs Beck (trib of Nidd) (GB104027063770)
2024 spills / hours
0 / 0.0
Long-term average
7.0 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 53 hours spilling →
New Cut 35 53 up from 0 100%
Ilkley Road
Overflow on sewer network
Company site name
ILKLEY ROAD/CSO
EA ID / permit
YWS01270 · WADC640
Outlet location
SE1962545353 (OS grid reference) · View on Apple Maps
WFD catchment
Wharfe from Hundwith Beck to River Washburn (GB104027064258)
2024 spills / hours
46 / 99
Long-term average
43.2 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 53 hours spilling →
River Wharfe 28 53 down 39% 100%
Poppleton Road North CSO
Overflow on sewer network
Company site name
POPPLETON ROAD NORTH/CSO
EA ID / permit
YWS00414 · 27/24/0248
Outlet location
SE5871251555 (OS grid reference) · View on Apple Maps
WFD catchment
Holgate Beck to Ouse (GB104027064001)
2024 spills / hours
46 / 57
Long-term average
49.0 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 52 hours spilling →
Culverted Holgate Beck 38 52 down 17% 100%
Kirkbymoorside STW
Storm tank at sewage works
Sewage works
Kirkbymoorside
Company site name
KIRKBYMOORSIDE/STW
EA ID / permit
YWS00483 · 27/25/0078
Outlet location
SE7045085680 (OS grid reference) · View on Apple Maps
WFD catchment
River Dove from Source to Hodge Beck (GB104027068260)
2024 spills / hours
48 / 392
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 52 hours spilling →
River Dove 9 52 down 81% 91%
Bradley Old Works CSO
Overflow on sewer network
Company site name
BRADLEY OLD WKS/CSO
EA ID / permit
YWS00634 · 2836
Outlet location
SD9969947967 (OS grid reference) · View on Apple Maps
WFD catchment
Aire (Eshton Beck to R Worth) (GB104027063033)
2024 spills / hours
15 / 21
Long-term average
18.3 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 52 hours spilling →
Laithehouse Beck 33 52 up 120% 99%
New Mill Library CSO
Overflow on sewer network
Company site name
NEW MILL LIBRARY/CSO
EA ID / permit
YWS00955 · EPRHB3892NS
Outlet location
SE1625008918 (OS grid reference) · View on Apple Maps
WFD catchment
New Mill Dike from Source to River Holme (GB104027057610)
2024 spills / hours
5 / 5.5
Long-term average
15.4 spills a year (monitored since 2020)
Monitor below 90%
Comms failure / issue · Resolved - Mar
Investigation
UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 52 hours spilling →
New Mill Dike 17 52 up 240% 82%
Lowtown CSO
Overflow on sewer network
Company site name
LOWTOWN/CSO
EA ID / permit
YWS01785 · WRA8458
Outlet location
SE2287633566 (OS grid reference) · View on Apple Maps
WFD catchment
Low/Wortley/Pudsey Bks from Source to Milshaw Beck (GB104027062830)
2024 spills / hours
56 / 87
Long-term average
58.2 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 52 hours spilling →
Clvrtdtrib of Pudsey Beck 37 52 down 34% 100%
Bedale Sewage Treatment Works
Inlet overflow at sewage works
Sewage works
Bedale
Company site name
BEDALE/STW
EA ID / permit
YWS00339 · 27/23/0144
Outlet location
SE2730087880 (OS grid reference) · View on Apple Maps
WFD catchment
Bedale/Newton/Burton Bk from Rand Bk to R Swale (GB104027068910)
2024 spills / hours
113 / 647
Long-term average
89.5 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 52 hours spilling →
Bedale Beck 24 52 down 79% 100%
Knavesmire Road CSO
Overflow on sewer network
Company site name
KNAVESMIRE ROAD/CSO
EA ID / permit
YWS00461 · 27/24/0437
Outlet location
SE5926050438 (OS grid reference) · View on Apple Maps
WFD catchment
Ouse from River Nidd to Stillingfleet Beck (GB104027069593)
2024 spills / hours
45 / 327
Long-term average
55.4 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 52 hours spilling →
Tributary of River Ouse 12 52 down 73% 100%
Pastures Road SPS
Storm discharge at pumping station
Company site name
PASTURES ROAD/NO 2 CSO
EA ID / permit
YWS00855 · C4614
Outlet location
SE4897000120 (OS grid reference) · View on Apple Maps
WFD catchment
Don from Greasborough Dyke to River Dearne (GB104027057452)
2024 spills / hours
13 / 57
Long-term average
12.8 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 52 hours spilling →
Tributary of the River Dearne 9 52 down 31% 100%
Silkstone CSO
Overflow on sewer network
Company site name
SILKSTONE/CSO
EA ID / permit
YWS01918 · WRA8686
Outlet location
SE2933506092 (OS grid reference) · View on Apple Maps
WFD catchment
Silkstone Beck from Source to Cawthorne Dyke (GB104027057560)
2024 spills / hours
13 / 35
Long-term average
16.0 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 52 hours spilling →
Silkstone Beck 14 52 up 8% 100%
Hill Bridge CSO
Overflow on sewer network
Company site name
HILL BRIDGE/CSO
EA ID / permit
YWS02030 · WRA9131
Outlet location
SK3327689572 (OS grid reference) · View on Apple Maps
WFD catchment
Loxley from Strines Dyke to River Don (GB104027057370)
2024 spills / hours
49 / 61
Long-term average
44.3 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Monitor below 90%
Comms failure / issue · Resolved - Mar
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 52 hours spilling →
River Loxley 33 52 down 33% 84%
Goole Lock Hill SPS
Overflow on sewer network
Company site name
GOOLE LOCK HILL/CSO
EA ID / permit
YWS01441 · WRA7557
Outlet location
SE7495423471 (OS grid reference) · View on Apple Maps
WFD catchment
HUMBER UPPER (GB530402609203)
2024 spills / hours
2 / 0.8
Long-term average
9.8 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 51 hours spilling →
River Ouse 44 51 up 2100% 100%
Northern General Hospital CSO
Overflow on sewer network
Company site name
NORTHERN GENERAL HOSP/CSO
EA ID / permit
YWS01627 · WRA8163
Outlet location
SK3647890392 (OS grid reference) · View on Apple Maps
WFD catchment
Don from River Loxley confl to River Don Works (GB104027057412)
2024 spills / hours
43 / 122
Long-term average
42.5 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 51 hours spilling →
Bagley Dike 19 51 down 56% 100%
Timothy Lane Tank CSO
Overflow on sewer network
Company site name
TIMOTHY LANE/CSO
EA ID / permit
YWS01780 · WRA8451
Outlet location
SE2477925318 (OS grid reference) · View on Apple Maps
WFD catchment
Batley Beck from Source to River Calder (GB104027062670)
2024 spills / hours
5 / 45
Long-term average
6.0 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 51 hours spilling →
Howley Beck 7 51 up 40% 100%
Permit applied for
Inlet overflow at sewage works
Sewage works
Permit Applied For
Company site name
HOOTON PAGNELL/STW
EA ID / permit
YWS00138 · Permit applied for
Outlet location
SE4820008300 (OS grid reference) · View on Apple Maps
WFD catchment
Frickley Beck from Source to Ea Beck (GB104027063140)
2024 spills / hours
45 / 65
Long-term average
52.2 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 51 hours spilling →
Permit applied for 31 51 down 31% 100%
Scarcroft CSO
Overflow on sewer network
Company site name
SCARCROFT/CSO
EA ID / permit
YWS00728 · 3528(SS)
Outlet location
SE3660042100 (OS grid reference) · View on Apple Maps
WFD catchment
Collingham Bk Catchment (trib of Wharfe) (GB104027063970)
2024 spills / hours
30 / 99
Long-term average
20.2 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 51 hours spilling →
Syke Beck 25 51 down 17% 100%
Wrenthorpe CSO
Overflow on sewer network
Company site name
WRENTHORPE/CSO
EA ID / permit
YWS00735 · 3594
Outlet location
SE3192621788 (OS grid reference) · View on Apple Maps
WFD catchment
River Chald from Source to River Calder (GB104027062620)
2024 spills / hours
10 / 30
Long-term average
12.5 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 51 hours spilling →
Balne Beck 16 51 up 60% 100%
Furlong Pond No 2 CSO
Overflow on sewer network
Company site name
FURLONG POND/NO 2 CSO
EA ID / permit
YWS00739 · 3640
Outlet location
SE4616103358 (OS grid reference) · View on Apple Maps
WFD catchment
River Dearne Darfield STW to River Don (GB104027063173)
2024 spills / hours
19 / 42
Long-term average
20.8 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 51 hours spilling →
Far Moor Dyke 16 51 down 16% 100%
Granville Road CSO
Overflow on sewer network
Company site name
GRANVILLE ROAD/CSO
EA ID / permit
YWS00873 · C4968
Outlet location
SK3585086550 (OS grid reference) · View on Apple Maps
WFD catchment
River Sheaf from Source to River Porter (GB104027057750)
2024 spills / hours
26 / 44
Long-term average
25.3 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 51 hours spilling →
River Sheaf 26 51 no change 100%
Grange Road 7 CSO
Overflow on sewer network
Company site name
GRANGE ROAD 7/CSO
EA ID / permit
YWS00697 · 3319
Outlet location
SE0739142246 (OS grid reference) · View on Apple Maps
WFD catchment
Aire (Eshton Beck to R Worth) (GB104027063033)
2024 spills / hours
28 / 40
Long-term average
35.5 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 51 hours spilling →
River Aire 27 51 down 4% 100%
Brewery Lane CSO
Overflow on sewer network
Company site name
BREWERY LANE/CSO
EA ID / permit
YWS01286 · WADC745
Outlet location
SE2403820061 (OS grid reference) · View on Apple Maps
WFD catchment
Calder from River Colne to River Chald (GB104027062631)
2024 spills / hours
11 / 21
Long-term average
22.0 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 51 hours spilling →
Culverted Trib of River Calder 14 51 up 27% 100%
Poole Road East CSO
Overflow on sewer network
Company site name
POOLE ROAD EAST/CSO
EA ID / permit
YWS01643 · WRA8180
Outlet location
SK3931087580 (OS grid reference) · View on Apple Maps
WFD catchment
Car Brook from Source to River Don (GB104027057360)
2024 spills / hours
33 / 44
Long-term average
26.3 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 50 hours spilling →
Car Brook 32 50 down 3% 100%
A1/A645 Slip Road SSO
Overflow on sewer network
Company site name
KNOTTINGLEY A1/CSO
EA ID / permit
YWS01942 · WRA8732
Outlet location
SE4834523515 (OS grid reference) · View on Apple Maps
WFD catchment
New Fleet Drain from source to R Went (GB104027063411)
2024 spills / hours
29 / 74
Long-term average
31.5 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 50 hours spilling →
Aire & Calder Navigation 24 50 down 17% 100%
Yws Unknown Sites Default
Overflow on sewer network
Company site name
SCHOOL WALK/CSO
EA ID / permit
YWS01076 · S/UD/5
Outlet location
SK504998 (OS grid reference) · View on Apple Maps
WFD catchment
Don from River Dearne to Mill Dyke (GB104027064242)
2024 spills / hours
8 / 34
Long-term average
7.8 spills a year (monitored since 2020)
Monitor below 90%
Comms failure / issue · Resolved - Sep
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 50 hours spilling →
Unknown 7 50 down 13% 87%
St Pauls Street CSO
Overflow on sewer network
Company site name
ST PAULS STREET/CSO
EA ID / permit
YWS01581 · WRA8099
Outlet location
SE2975033270 (OS grid reference) · View on Apple Maps
WFD catchment
Aire from Gill Beck (Baildon) to Wyke Beck (GB104027063035)
2024 spills / hours
32 / 97
Long-term average
21.8 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 50 hours spilling →
River Aire 18 50 down 44% 98%
Jackson Bridge No 2 CSO
Overflow on sewer network
Company site name
JACKSON BRIDGE/NO 2 CSO
EA ID / permit
YWS01807 · WRA8490
Outlet location
SE1641007420 (OS grid reference) · View on Apple Maps
WFD catchment
New Mill Dike from Source to River Holme (GB104027057610)
2024 spills / hours
20 / 27
Long-term average
15.3 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 50 hours spilling →
Jackson Bridge Dyke 19 50 down 5% 100%
Bleakley Lane No 2 CSO
Overflow on sewer network
Company site name
BLEAKLEY LANE/NO 2 CSO
EA ID / permit
YWS01950 · WRA8744
Outlet location
SE3577512318 (OS grid reference) · View on Apple Maps
WFD catchment
Owler Beck from Source to River Calder (GB104027062530)
2024 spills / hours
24 / 51
Long-term average
26.8 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 50 hours spilling →
Applehaigh Beck 16 50 down 33% 100%
South Station Road CSO
Overflow on sewer network
Company site name
SOUTH STATION ROAD/CSO
EA ID / permit
YWS00170 · 2688
Outlet location
SE1568039160 (OS grid reference) · View on Apple Maps
WFD catchment
Aire (R Worth to Gill Beck) (GB104027063034)
2024 spills / hours
44 / 75
Long-term average
48.7 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 50 hours spilling →
Barnsley Beack to River Aire 39 50 down 11% 100%
Yws Unknown Sites Default
Storm discharge at pumping station
Company site name
TREETON LANE/CSO
EA ID / permit
YWS00105 · 2250
Outlet location
SK3889092820 (OS grid reference) · View on Apple Maps
WFD catchment
Rother, Doe Lea to Don (GB104027057772)
2024 spills / hours
13 / 19
Long-term average
26.8 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 49 hours spilling →
Tributary of the River Rother 14 49 up 8% 100%
Roundhay Park Lane CSO
Overflow on sewer network
Company site name
ROUNDHAY PARK LANE/CSO
EA ID / permit
YWS01573 · WRA8089
Outlet location
SE3288238714 (OS grid reference) · View on Apple Maps
WFD catchment
Wyke Beck from Source to River Aire (GB104027062880)
2024 spills / hours
45 / 55
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 49 hours spilling →
Trib of Wyke Beck 37 49 down 18% 100%
Railway Street (B to D) CSO
Overflow on sewer network
Company site name
RAILWAY ST DEWSBURY/CSO
EA ID / permit
YWS02210 · YWUCD2/28
Outlet location
SE2475021324 (OS grid reference) · View on Apple Maps
WFD catchment
Calder from River Colne to River Chald (GB104027062631)
2024 spills / hours
33 / 176
Long-term average
57.8 spills a year (monitored since 2020)
Monitor below 90%
Comms failure / issue · Resolved - Mar
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 49 hours spilling →
River Calder 13 49 down 61% 58%
Dalton Wakefield Road CSO
Overflow on sewer network
Company site name
DALTON WAKEFIELD ROAD/CSO
EA ID / permit
YWS00028 · 1485
Outlet location
SE1741617069 (OS grid reference) · View on Apple Maps
WFD catchment
Fenay beck from Source to River Colne (GB104027063340)
2024 spills / hours
18 / 37
Long-term average
8.0 spills a year (monitored since 2020)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 49 hours spilling →
Round Wood Beck 28 49 up 56% 100%
Bramley Hall Farm SPS
Storm discharge at pumping station
Company site name
BRAMLEY HALL FM/CSO
EA ID / permit
YWS01264 · WADC53
Outlet location
SK4067079380 (OS grid reference) · View on Apple Maps
WFD catchment
The Moss from Source to River Rother (GB104027057720)
2024 spills / hours
6 / 16
Long-term average
8.8 spills a year (monitored since 2020)
Investigation
Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 49 hours spilling →
Tributary of the River Moss 5 49 down 17% 100%
Dock Walk CSO
Overflow on sewer network
Company site name
DOCK WALK/CSO
EA ID / permit
YWS02004 · WRA9097
Outlet location
SK3764070920 (OS grid reference) · View on Apple Maps
WFD catchment
Hipper from Source to River Rother (GB104027057660)
2024 spills / hours
15 / 49
Long-term average
11.7 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 49 hours spilling →
River Hipper 13 49 down 13% 98%
Whinney Moor Pub House CSO
Overflow on sewer network
Company site name
WHINNEY MOOR PUB HSE/CSO
EA ID / permit
YWS02099 · WRA9205
Outlet location
SE3170719679 (OS grid reference) · View on Apple Maps
WFD catchment
Calder from River Colne to River Chald (GB104027062631)
2024 spills / hours
3 / 5.5
Long-term average
5.2 spills a year (monitored since 2020)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 49 hours spilling →
Tributary of the River Calder 26 49 up 767% 100%
Abbey Road No 2 CSO
Overflow on sewer network
Company site name
ABBEY ROAD/NO 2 CSO
EA ID / permit
YWS00231 · 27/21/0123
Outlet location
SE3512356374 (OS grid reference) · View on Apple Maps
WFD catchment
Nidd from Oak Beck to Low Bridge on Briggate (Knaresborough) (GB104027068297)
Bathing water
Nidd at the Lido, Knaresborough
2024 spills / hours
20 / 26
Long-term average
11.8 spills a year (monitored since 2020)
Monitor below 90%
Comms failure / issue · Resolved - Apr
Investigation
Operational investigation completed, Bathing Water and/or Shellfish Water investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 49 hours spilling →
River Nidd 19 49 down 5% 81%
Stonebridge Gate CSO
Storm discharge at pumping station
Company site name
STONEBRIDGE GATE/CSO
EA ID / permit
YWS00323 · 27/22/0169
Outlet location
SE3158071570 (OS grid reference) · View on Apple Maps
WFD catchment
Skell from River Laver to River Ure (GB104027064140)
2024 spills / hours
24 / 96
Long-term average
13.8 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 49 hours spilling →
Skittergate Gutter 11 49 down 54% 99%
Dropping Well Road SPS
Storm discharge at pumping station
Company site name
DROPPINGWELL ROAD/CSO
EA ID / permit
YWS01463 · WRA7704
Outlet location
SK3941993814 (OS grid reference) · View on Apple Maps
WFD catchment
Blackburn Brook from Source to River Don (GB104027057440)
2024 spills / hours
31 / 39
Long-term average
35.0 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 49 hours spilling →
Oakley Bottom Dike 27 49 down 13% 100%
Hares Road No 2 CSO
Overflow on sewer network
Company site name
HARES ROAD/NO 2 CSO
EA ID / permit
YWS01612 · WRA8141
Outlet location
SE3163435633 (OS grid reference) · View on Apple Maps
WFD catchment
Meanwood Beck from Source to River Aire (GB104027062900)
2024 spills / hours
54 / 83
Long-term average
54.5 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 49 hours spilling →
Gipton Beck 30 49 down 44% 100%
Derby Road Garage CSO
Overflow on sewer network
Company site name
DERBY ROAD GARAGE/CSO
EA ID / permit
YWS01999 · WRA9091
Outlet location
SK3842069870 (OS grid reference) · View on Apple Maps
WFD catchment
Rother from Redleadmill Brook to Spital Brook (GB104027057630)
2024 spills / hours
14 / 71
Long-term average
13.5 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 49 hours spilling →
River Rother 10 49 down 29% 100%
Helperby Sewage Treatment Works
Storm tank at sewage works
Sewage works
Helperby
Company site name
HELPERBY/STW
EA ID / permit
YWS00365 · 27/23/0264
Outlet location
SE4391069890 (OS grid reference) · View on Apple Maps
WFD catchment
Swale from Wiske to River Ure (GB104027069591)
2024 spills / hours
11 / 159
Long-term average
15.2 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 49 hours spilling →
Culverted Trib of Swale 7 49 down 36% 100%
Endeavour Wharf Pumping Station
Storm discharge at pumping station
Company site name
ENDEAVOUR WHARF/CSO
EA ID / permit
YWS00577 · 27/29/0040
Outlet location
NZ8993010930 (OS grid reference) · View on Apple Maps
WFD catchment
ESK (E) (GB510402703400)
2024 spills / hours
40 / 141
Long-term average
29.7 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 49 hours spilling →
The North Sea and River Esk 15 49 down 63% 100%
Coach Road SPS
Storm discharge at pumping station
Company site name
BAILDON COACH RD/CSO
EA ID / permit
YWS01318 · WADC96
Outlet location
SE1410038200 (OS grid reference) · View on Apple Maps
WFD catchment
Aire (R Worth to Gill Beck) (GB104027063034)
2024 spills / hours
21 / 173
Long-term average
8.7 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 49 hours spilling →
River Aire 5 49 down 76% 100%
Rivadale View CSO
Overflow on sewer network
Company site name
RIVADALE VIEW/CSO
EA ID / permit
YWS00674 · 3166(SS)
Outlet location
SE1170048000 (OS grid reference) · View on Apple Maps
WFD catchment
Wharfe from Barben Beck/River Dibb to Hundwith Beck (GB104027064257)
Bathing water
Wharfe at Cromwheel, Ilkley
2024 spills / hours
40 / 108
Long-term average
48.5 spills a year (monitored since 2020)
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 48 hours spilling →
River Wharfe 20 48 down 50% 100%
Bondgate CSO
Overflow on sewer network
Company site name
BONDGATE/CSO
EA ID / permit
YWS01528 · WRA7973
Outlet location
SE4674822768 (OS grid reference) · View on Apple Maps
WFD catchment
New Fleet Drain from source to R Went (GB104027063411)
2024 spills / hours
28 / 48
Long-term average
37.2 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 48 hours spilling →
Wash Dike 30 48 up 7% 100%
Jack Lane CSO
Overflow on sewer network
Company site name
MIDDLETON GROVE/CSO
EA ID / permit
YWS01842 · WRA8543
Outlet location
SE3216031220 (OS grid reference) · View on Apple Maps
WFD catchment
Aire from Gill Beck (Baildon) to Wyke Beck (GB104027063035)
2024 spills / hours
18 / 25
Long-term average
9.3 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Investigation
Env Act (SODRP) investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 48 hours spilling →
Aire and Calder Navigation 36 48 up 100% 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.