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
Plaxtons Factory No 2 CSO
Overflow on sewer network
Company site name
PLAXTONS FACTORY/NO 2 CSO
EA ID / permit
YWS00508 · 27/26/0038
Outlet location
TA0429583445 (OS grid reference) · View on Apple Maps
WFD catchment
Eastfield Drain Lower to River Hertford (GB104027073281)
2024 spills / hours
28 / 144
Long-term average
28.2 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 127 hours spilling →
Culverted Trib River Hertford 29 127 up 4% 100%
Carr Hill Road CSO
Overflow on sewer network
Company site name
CARR HILL ROAD/CSO
EA ID / permit
YWS01700 · WRA8243
Outlet location
SE1784028320 (OS grid reference) · View on Apple Maps
WFD catchment
Spen Beck from Source to River Calder (GB104027062710)
2024 spills / hours
47 / 132
Long-term average
52.7 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 127 hours spilling →
High Royds Beck 50 127 up 6% 100%
Mytholmes Lane CSO
Overflow on sewer network
Company site name
MYTHOLMES LANE/CSO
EA ID / permit
YWS00773 · 3827
Outlet location
SE0360538083 (OS grid reference) · View on Apple Maps
WFD catchment
Worth from Bridgehouse Beck to R Aire (GB104027062891)
2024 spills / hours
52 / 196
Long-term average
61.3 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 127 hours spilling →
River Worth 42 127 down 19% 100%
Shute Road NO2 SPS
Storm discharge at pumping station
Company site name
SHUTE ROAD/NO 2 CSO
EA ID / permit
YWS00325 · QR.27/23/0076
Outlet location
SE1833797850 (OS grid reference) · View on Apple Maps
WFD catchment
Colburn Beck/Risedale Bk from Source to R Swale (GB104027069000)
2024 spills / hours
30 / 259
Long-term average
19.8 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 127 hours spilling →
Cottages Beck 18 127 down 40% 100%
Station Road Altofts CSO
Overflow on sewer network
Company site name
STATION ROAD ALTOFTS/CSO
EA ID / permit
YWS01608 · WRA8137
Outlet location
SE3890023530 (OS grid reference) · View on Apple Maps
WFD catchment
Choke Churl Bk from Source to River Calder (GB104027062590)
2024 spills / hours
48 / 151
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 126 hours spilling →
Ashfield Beck 39 126 down 19% 100%
Riverside Road No.2 CSO
Overflow on sewer network
Company site name
RIVERSIDE ROAD/NO 2 CSO
EA ID / permit
YWS00352 · 27/23/0219
Outlet location
NZ1697200612 (OS grid reference) · View on Apple Maps
WFD catchment
Swale from Clapgate Beck to Bedale Beck (GB104027069122)
2024 spills / hours
62 / 187
Long-term average
53.5 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 126 hours spilling →
River Swale 48 126 down 23% 100%
Dark Lane Worsboro CSO
Overflow on sewer network
Company site name
DARK LANE WORSBORO/CSO
EA ID / permit
YWS01368 · WRA7252
Outlet location
SE3594003490 (OS grid reference) · View on Apple Maps
WFD catchment
Dove from Source to River Dearne (GB104027057510)
2024 spills / hours
43 / 99
Long-term average
23.2 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Monitor below 90%
Sensor failure / issue · Resolved - Aug
Investigation
UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 126 hours spilling →
River Dove 31 126 down 28% 89%
Harlington Mill Lane CSO
Overflow on sewer network
Company site name
HARLINGTON MILL LN/CSO
EA ID / permit
YWS01154 · WADC1142
Outlet location
SE4834201988 (OS grid reference) · View on Apple Maps
WFD catchment
River Dearne Darfield STW to River Don (GB104027063173)
2024 spills / hours
27 / 154
Long-term average
35.6 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 125 hours spilling →
Culv Trib of Old River Dearne 16 125 down 41% 100%
Milnsbridge (Market Street) CSO
Overflow on sewer network
Company site name
MILNSBRIDGE/CSO
EA ID / permit
YWS01965 · WRA8766
Outlet location
SE1154816143 (OS grid reference) · View on Apple Maps
WFD catchment
River Colne from Wessenden Brook to R Holme (GB104027063330)
2024 spills / hours
69 / 131
Long-term average
59.3 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Monitor below 90%
Power failure / issue · Resolved - Jul
Investigation
Env Act (SODRP) investigation completed, UWWTR investigation completed, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 125 hours spilling →
Longwood Brook 55 125 down 20% 68%
Wombwell WwTW
Inlet overflow at sewage works
Sewage works
Wombwell
Company site name
WOMBWELL/STW
EA ID / permit
YWS01102 · WA 6273
Outlet location
SE4088103364 (OS grid reference) · View on Apple Maps
WFD catchment
River Dearne Darfield STW to River Don (GB104027063173)
2024 spills / hours
25 / 157
Long-term average
21.5 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 125 hours spilling →
River Dove and Bulling Dyke 15 125 down 40% 100%
Green End No 2 CSO
Overflow on sewer network
Company site name
GREEN END/NO 2 CSO
EA ID / permit
YWS01578 · WRA8096
Outlet location
SE1198032080 (OS grid reference) · View on Apple Maps
WFD catchment
Clayton Beck (Source to Bradford Bk) (GB104027062861)
2024 spills / hours
– / –
Long-term average
28.8 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 125 hours spilling →
Trib of Clayton Beck (Culvert) 13 125 100%
Castleford Lane/Castleford Rd CSO
Overflow on sewer network
Company site name
CASTLEFORD ROAD/CSO
EA ID / permit
YWS01723 · WRA8302
Outlet location
SE3966024070 (OS grid reference) · View on Apple Maps
WFD catchment
Choke Churl Bk from Source to River Calder (GB104027062590)
2024 spills / hours
37 / 146
Long-term average
30.3 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 125 hours spilling →
Wain Dike Beck 30 125 down 19% 100%
Woodbine Cottage CSO
Overflow on sewer network
Company site name
WOODBINE COTTAGE/CSO
EA ID / permit
YWS01538 · WRA7987
Outlet location
SE3443400334 (OS grid reference) · View on Apple Maps
WFD catchment
Rockley Dike from Source to River Dove (GB104027057480)
2024 spills / hours
31 / 128
Long-term average
32.3 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 125 hours spilling →
Birdwell Dike 29 125 down 6% 100%
Shadwell Sewage Pumping Station
Storm discharge at pumping station
Company site name
SHADWELL/CSO
EA ID / permit
YWS00203 · 27/20/0082
Outlet location
SE3531239811 (OS grid reference) · View on Apple Maps
WFD catchment
Collingham Bk Catchment (trib of Wharfe) (GB104027063970)
2024 spills / hours
64 / 117
Long-term average
53.0 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - hydraulic capacity
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing, Operational investigation ongoing, Bathing Water and/or Shellfish Water investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 124 hours spilling →
Culverted Trib Scarcroft Beck 47 124 down 27% 100%
Beeford SPS
Storm discharge at pumping station
Company site name
BEEFORD/SPS
EA ID / permit
YWS01231 · WADC284
Outlet location
TA1268054040 (OS grid reference) · View on Apple Maps
WFD catchment
Old Howe/Frodingham Beck to R Hull (GB104026067021)
2024 spills / hours
11 / 62
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 124 hours spilling →
Ditch 10 124 down 9% 100%
Hebble Brook CSO
Overflow on sewer network
Company site name
HEBBLE BROOK/CSO
EA ID / permit
YWS00789 · 555
Outlet location
SE0645029000 (OS grid reference) · View on Apple Maps
WFD catchment
Hebble Brook from Source to River Calder (GB104027062780)
2024 spills / hours
48 / 131
Long-term average
57.5 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 123 hours spilling →
Hebble Brook 43 123 down 10% 100%
Pottery Lane East CSO
Overflow on sewer network
Company site name
POTTERY LANE EAST/CSO
EA ID / permit
YWS01819 · WRA8513
Outlet location
SK3874473251 (OS grid reference) · View on Apple Maps
WFD catchment
Rother, Spittal Brook to Doe Lea (GB104027057771)
2024 spills / hours
51 / 178
Long-term average
44.2 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 123 hours spilling →
River Rother 39 123 down 24% 99%
Grewelthorpe/Galphay/Laverton Sch
Overflow on sewer network
Company site name
GREWELTHORPE/CSO
EA ID / permit
YWS00283 · 27/22/0059
Outlet location
SE2310076100 (OS grid reference) · View on Apple Maps
WFD catchment
Kex Beck from Source to River Laver (GB104027069260)
2024 spills / hours
74 / 248
Long-term average
58.5 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 123 hours spilling →
Tranmire Goit 58 123 down 22% 99%
Patrington SPS
Storm discharge at pumping station
Company site name
PATRINGTON HAVEN/SPS
EA ID / permit
YWS01238 · WADC334
Outlet location
TA3020021100 (OS grid reference) · View on Apple Maps
WFD catchment
Winestead Drain from Source to Humber (GB104026066570)
2024 spills / hours
6 / 76
Long-term average
4.0 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 123 hours spilling →
Nearby Ditch 8 123 up 33% 100%
Thornes Lane Wharfe CSO
Overflow on sewer network
Company site name
THORNES WHARFE/CSO
EA ID / permit
YWS00827 · C3967
Outlet location
SE3360019900 (OS grid reference) · View on Apple Maps
WFD catchment
Calder from River Colne to River Chald (GB104027062631)
2024 spills / hours
31 / 96
Long-term average
33.3 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 123 hours spilling →
River Calder 30 123 down 3% 100%
Little London Road CSO
Overflow on sewer network
Company site name
LITTLE LONDON 187/CSO
EA ID / permit
YWS00683 · 3239
Outlet location
SK3500084800 (OS grid reference) · View on Apple Maps
WFD catchment
River Sheaf from Source to River Porter (GB104027057750)
2024 spills / hours
43 / 100
Long-term average
43.0 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 122 hours spilling →
Meers Brook 45 122 up 5% 100%
Ravens Huddersfield Rd CSO
Overflow on sewer network
Company site name
RAVENS HUDDFLD RD/CSO
EA ID / permit
YWS00936 · EPRCB3598RG
Outlet location
SE2401320952 (OS grid reference) · View on Apple Maps
WFD catchment
Calder from River Colne to River Chald (GB104027062631)
2024 spills / hours
26 / 87
Long-term average
27.3 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 122 hours spilling →
River Calder 27 122 up 4% 94%
Lundhill CSO
Overflow on sewer network
Company site name
LUNDHILL/CSO
EA ID / permit
YWS01097 · WA6189
Outlet location
SE4052901656 (OS grid reference) · View on Apple Maps
WFD catchment
Knoll Beck from Source to River Dearne (GB104027057470)
2024 spills / hours
48 / 162
Long-term average
38.7 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 122 hours spilling →
Knoll Beck 34 122 down 29% 100%
Deerlands Avenue 178 No 2 CSO
Overflow on sewer network
Company site name
DEERLANDS AVE 178/2 CSO
EA ID / permit
YWS01631 · WRA8167
Outlet location
SK3592292564 (OS grid reference) · View on Apple Maps
WFD catchment
Blackburn Brook from Source to River Don (GB104027057440)
2024 spills / hours
50 / 155
Long-term average
53.2 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 121 hours spilling →
Sheffield Lane Dike 41 121 down 18% 100%
Heworth Green No 2 CSO
Overflow on sewer network
Company site name
HEWORTH GREEN/NO 2 CSO
EA ID / permit
YWS00420 · 27/24/0287
Outlet location
SE6089852505 (OS grid reference) · View on Apple Maps
WFD catchment
River Foss from the Syke to the River Ouse (GB104027063520)
2024 spills / hours
30 / 134
Long-term average
22.8 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 121 hours spilling →
River Foss 26 121 down 13% 99%
Treeton Mill Lane Sew Pumping Stn
Overflow on sewer network
Company site name
TREETON MILL LANE/CSO
EA ID / permit
YWS01461 · WRA7697
Outlet location
SK4257487801 (OS grid reference) · View on Apple Maps
WFD catchment
Rother, Doe Lea to Don (GB104027057772)
2024 spills / hours
31 / 126
Long-term average
22.5 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 120 hours spilling →
River Rother 29 120 down 6% 99%
Elmete Lane CSO
Overflow on sewer network
Company site name
ELMETE LANE/NO 2 CSO
EA ID / permit
YWS00072 · 1944
Outlet location
SE3371036940 (OS grid reference) · View on Apple Maps
WFD catchment
Wyke Beck from Source to River Aire (GB104027062880)
2024 spills / hours
16 / 60
Long-term average
15.7 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 119 hours spilling →
Wyke Beck 17 119 up 6% 97%
Dewsbury Road 51 NO2 CSO
Overflow on sewer network
Company site name
DEWSBURY ROAD 51/NO 2 CSO
EA ID / permit
YWS01014 · NPSWQD005961
Outlet location
SE2822928654 (OS grid reference) · View on Apple Maps
WFD catchment
Milshaw Beck from Source to Low/Wortley/Pudsey Bks (GB104027062750)
2024 spills / hours
59 / 130
Long-term average
60.7 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 119 hours spilling →
Cotton Mill Beck 50 119 down 15% 100%
Sheepscar Lane No 2 CSO
Overflow on sewer network
Company site name
SHEEPSCAR LANE/NO 2 CSO
EA ID / permit
YWS00041 · 1645
Outlet location
SE3068634701 (OS grid reference) · View on Apple Maps
WFD catchment
Meanwood Beck from Source to River Aire (GB104027062900)
2024 spills / hours
48 / 140
Long-term average
38.3 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 119 hours spilling →
Sheepscar Beck 30 119 down 38% 100%
Stockwell Hill CSO
Overflow on sewer network
Company site name
STOCKWELL HILL/CSO
EA ID / permit
YWS00743 · 3659
Outlet location
SE1360013700 (OS grid reference) · View on Apple Maps
WFD catchment
Holme from New Mill Dike to R Colne (GB104027063301)
2024 spills / hours
40 / 110
Long-term average
47.3 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 119 hours spilling →
River Holme 38 119 down 5% 100%
Beamsley Wastewater Treatment Works
Inlet overflow at sewage works
Sewage works
Beamsley
Company site name
BEAMSLEY/STW
EA ID / permit
YWS01340 · WRA6885
Outlet location
SE0766052350 (OS grid reference) · View on Apple Maps
WFD catchment
Kex Beck Catchment (trib of Wharfe) (GB104027064050)
Bathing water
Wharfe at Cromwheel, Ilkley
2024 spills / hours
104 / 238
Long-term average
99.8 spills a year (monitored since 2020)
High-spill reason (company)
Performance - SW Infiltration
Investigation
UWWTR investigation ongoing, Operational investigation ongoing, Bathing Water and/or Shellfish Water investigation ongoing
Improvement
Operational improvement ongoing
Volume & pollution
Estimate from 118 hours spilling →
River Wharfe 120 118 up 15% 100%
Haworth Combined Sewer Overflow
Overflow on sewer network
Company site name
HAWORTH/CSO
EA ID / permit
YWS01895 · WRA8641
Outlet location
SE0480038450 (OS grid reference) · View on Apple Maps
WFD catchment
Worth from Bridgehouse Beck to R Aire (GB104027062891)
2024 spills / hours
56 / 181
Long-term average
60.7 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 118 hours spilling →
River Worth 39 118 down 30% 98%
Sowgate Lane CSO
Storm discharge at pumping station
Company site name
SOWGATE LANE/CSO
EA ID / permit
YWS00078 · 2060
Outlet location
SE4718022950 (OS grid reference) · View on Apple Maps
WFD catchment
New Fleet Drain from source to R Went (GB104027063411)
2024 spills / hours
42 / 234
Long-term average
43.3 spills a year (monitored since 2020)
High-spill reason (company)
Performance - Asset configuration (e.g. PS/rising main/storm tanks)
Investigation
Env Act (SODRP) investigation completed, UWWTR investigation completed, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 118 hours spilling →
Wash Dike 33 118 down 21% 100%
Burntwood Close CSO
Overflow on sewer network
Company site name
BURNTWOOD CLOSE/CSO
EA ID / permit
YWS00755 · 3729
Outlet location
SE4503204820 (OS grid reference) · View on Apple Maps
WFD catchment
Ings/Carr/Thurnscoe Dikes from Source to Dearne (GB104027057550)
2024 spills / hours
36 / 87
Long-term average
32.2 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 118 hours spilling →
Tributary of Thurnscoe Dike 29 118 down 19% 100%
Flamborough SPS
Storm discharge at pumping station
Company site name
FLAMBOROUGH/CSO
EA ID / permit
YWS01341 · WA6516
Outlet location
TA2246269918 (OS grid reference) · View on Apple Maps
WFD catchment
Not part of a WFD catchment
Bathing water
Flamborough South Landing
2024 spills / hours
32 / 128
Long-term average
27.0 spills a year (monitored since 2021)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 118 hours spilling →
Hartendale Gutter 30 118 down 6% 100%
Broadway Station CSO
Storm discharge at pumping station
Company site name
BROADWAY 166/CSO
EA ID / permit
YWS00947 · EPREP3225GG
Outlet location
SE6499012610 (OS grid reference) · View on Apple Maps
WFD catchment
Don from Mill Dyke to River Ouse (GB104027064243)
2024 spills / hours
24 / 46
Long-term average
11.3 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 117 hours spilling →
River Don 42 117 up 75% 97%
Pool Wpc Works
Inlet overflow at sewage works
Sewage works
Pool Wpc Works
Company site name
POOL/STW/6XDWF OVERFLOW
EA ID / permit
YWS00200 · 27/20/0069
Outlet location
SE2636045420 (OS grid reference) · View on Apple Maps
WFD catchment
Wharfe from R Washburn to Collingham Beck (GB104027064254)
2024 spills / hours
54 / 429
Long-term average
31.0 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 117 hours spilling →
River Wharfe 14 117 down 74% 100%
Dalton Green Lane CSO
Overflow on sewer network
Company site name
DALTON GREEN LANE/CSO
EA ID / permit
YWS00707 · 336
Outlet location
SE1708017320 (OS grid reference) · View on Apple Maps
WFD catchment
Fenay beck from Source to River Colne (GB104027063340)
2024 spills / hours
51 / 91
Long-term average
36.2 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 117 hours spilling →
Calder 52 117 up 2% 100%
Colne Road CSO
Overflow on sewer network
Company site name
COLNE ROAD/CSO
EA ID / permit
YWS01852 · WRA8557
Outlet location
SE1503716169 (OS grid reference) · View on Apple Maps
WFD catchment
River Colne from River Holme to River Calder (GB104027062550)
2024 spills / hours
9 / 14
Long-term average
12.0 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 117 hours spilling →
River Colne 37 117 up 311% 99%
Silkstone Common (Moor End) SPS
Storm discharge at pumping station
Company site name
SILKSTONE COMMON/CSO
EA ID / permit
YWS01500 · WRA7939
Outlet location
SE2969004260 (OS grid reference) · View on Apple Maps
WFD catchment
Dodworth Dyke from Source to River Dove (GB104027057520)
2024 spills / hours
30 / 191
Long-term average
34.8 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 115 hours spilling →
House Carr Dike 25 115 down 17% 100%
Park Street CSO
Overflow on sewer network
Company site name
PARK STREET/CSO
EA ID / permit
YWS00299 · 27/22/0084
Outlet location
SE3102270990 (OS grid reference) · View on Apple Maps
WFD catchment
Skell from River Laver to River Ure (GB104027064140)
2024 spills / hours
47 / 158
Long-term average
38.5 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 115 hours spilling →
Skell 43 115 down 9% 100%
Victoria Park CSO
Overflow on sewer network
Company site name
VICTORIA PARK/CSO
EA ID / permit
YWS01425 · WRA7515
Outlet location
SE1680227955 (OS grid reference) · View on Apple Maps
WFD catchment
Spen Beck from Source to River Calder (GB104027062710)
2024 spills / hours
24 / 119
Long-term average
29.2 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 115 hours spilling →
Low Moor Beck (Culverted) 26 115 up 8% 97%
Norwood Road NO2 CSO
Overflow on sewer network
Company site name
NORWOOD ROAD/NO 2 CSO
EA ID / permit
YWS01626 · WRA8162
Outlet location
SK3585890336 (OS grid reference) · View on Apple Maps
WFD catchment
Don from River Loxley confl to River Don Works (GB104027057412)
2024 spills / hours
29 / 59
Long-term average
40.2 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 115 hours spilling →
Trib of Bagley Dike 42 115 up 45% 94%
Greasbrough CSO
Overflow on sewer network
Company site name
GREASBROUGH/CSO
EA ID / permit
YWS00744 · 3670
Outlet location
SK4228495559 (OS grid reference) · View on Apple Maps
WFD catchment
Greasbrough Dike from Source to River Don (GB104027057420)
2024 spills / hours
53 / 122
Long-term average
59.5 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 114 hours spilling →
Tributary of Ochre Dyke 47 114 down 11% 100%
Stocks Rise CSO
Overflow on sewer network
Company site name
STOCKS RISE/CSO
EA ID / permit
YWS02040 · WRA9144
Outlet location
SE3589835598 (OS grid reference) · View on Apple Maps
WFD catchment
Wyke Beck from Source to River Aire (GB104027062880)
2024 spills / hours
39 / 111
Long-term average
40.0 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 114 hours spilling →
Wyke Beck 37 114 down 5% 100%
Wheldrake SPS
Overflow on sewer network
Company site name
COURTNEYS/CSO
EA ID / permit
YWS01260 · WADC461
Outlet location
SE6840045200 (OS grid reference) · View on Apple Maps
WFD catchment
River Derwent from Elvington Beck to River Ouse (GB104027068311)
2024 spills / hours
31 / 162
Long-term average
58.8 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation completed, UWWTR investigation completed, Operational investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 114 hours spilling →
Ditch 21 114 down 32% 100%
The Poplars SPS
Overflow on sewer network
Company site name
OTTRINGHAM THE POPLAR/CSO
EA ID / permit
YWS01480 · WRA7815
Outlet location
TA2671023910 (OS grid reference) · View on Apple Maps
WFD catchment
Otteringham Drain from Otteringham Gr to Humber (GB104026066510)
2024 spills / hours
26 / 137
Long-term average
47.5 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 114 hours spilling →
Ottringham Drain 28 114 up 8% 99%
Carcroft (New Street) SPS
Storm discharge at pumping station
Company site name
CARCROFT NEW STREET/SPS
EA ID / permit
YWS02188 · YWUCD1/18
Outlet location
SE5460410025 (OS grid reference) · View on Apple Maps
WFD catchment
Ea Beck from the Skell to River Don (GB104027057591)
2024 spills / hours
19 / 173
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 114 hours spilling →
Wellsyke Drain 12 114 down 37% 100%
Standbridge Lane CSO
Overflow on sewer network
Company site name
STANDBRIDGE LANE/CSO
EA ID / permit
YWS01734 · WRA8342
Outlet location
SE3340017098 (OS grid reference) · View on Apple Maps
WFD catchment
Owler Beck from Source to River Calder (GB104027062530)
2024 spills / hours
50 / 106
Long-term average
59.5 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 114 hours spilling →
Owler Beck 41 114 down 18% 100%
Norton Church Street CSO
Overflow on sewer network
Company site name
NORTON CHURCH ST/2 CSO
EA ID / permit
YWS00545 · 27/27/0166
Outlet location
SE7919671444 (OS grid reference) · View on Apple Maps
WFD catchment
Derwent from River Rye to Kirkham (GB104027068313)
2024 spills / hours
50 / 218
Long-term average
57.3 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 113 hours spilling →
River Derwent 54 113 up 8% 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.