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

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.

Overflow	Discharges to	Spills vs 2024	Monitor uptime
Damems Road CSO Overflow on sewer network Company site name DAMEMS ROAD/CSO EA ID / permit YWS01894 · WRA8640 Outlet location SE0527939100 (OS grid reference) · View on Apple Maps WFD catchment Worth from Bridgehouse Beck to R Aire (GB104027062891) 2024 spills / hours 3 / 1.8 Long-term average 2.2 spills a year (monitored since 2020) Investigation Operational investigation completed Improvement No improvement action in reporting period	River Worth	down 100%	100%
Melton Street CSO Overflow on sewer network Company site name MELTON STREET/CSO EA ID / permit YWS01908 · WRA8671 Outlet location SE2397224645 (OS grid reference) · View on Apple Maps WFD catchment Batley Beck from Source to River Calder (GB104027062670) 2024 spills / hours 0 / 0.0 Long-term average 0.3 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period	Carlinghow Beck	no change	100%
Beaumont Park CSO Overflow on sewer network Company site name BEAUMONT PARK/CSO EA ID / permit YWS01910 · WRA8677 Outlet location SE1264214116 (OS grid reference) · View on Apple Maps WFD catchment Holme from New Mill Dike to R Colne (GB104027063301) 2024 spills / hours – / – Long-term average 1.2 spills a year (monitored since 2020) Monitor below 90% Comms failure / issue · Resolved - Mar Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period	Tributary of River Holme		71%
Queens Mill Road (Off) Overflow on sewer network Company site name QUEENS MILL ROAD/CSO EA ID / permit YWS01912 · WRA8679 Outlet location SE1413115635 (OS grid reference) · View on Apple Maps WFD catchment Holme from New Mill Dike to R Colne (GB104027063301) 2024 spills / hours 1 / 0.3 Long-term average 3.2 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period	River Holme	down 100%	100%
Birk Road, Kendray CSO Overflow on sewer network Company site name BIRK ROAD/CSO EA ID / permit YWS01919 · WRA8687 Outlet location SE3726106230 (OS grid reference) · View on Apple Maps WFD catchment River Dearne from Cawthorne Dyke to Lundwood STW (GB104027063171) 2024 spills / hours 0 / 0.0 Long-term average 0.3 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period	Tributary of the River Dearne	no change	100%
Hill Top Farm CSO Overflow on sewer network Company site name HILL TOP FARM/CSO EA ID / permit YWS01921 · WRA8691 Outlet location SE3456008840 (OS grid reference) · View on Apple Maps WFD catchment River Dearne from Cawthorne Dyke to Lundwood STW (GB104027063171) 2024 spills / hours 3 / 2.3 Long-term average 1.5 spills a year (monitored since 2020) Monitor below 90% Comms failure / issue · Scheduled Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement No improvement action in reporting period	Ditch to the River Dearne	down 100%	49%
Burley Road CSO Overflow on sewer network Company site name BURLEY ROAD/CSO EA ID / permit YWS01922 · WRA8693 Outlet location SE2748134221 (OS grid reference) · View on Apple Maps WFD catchment Aire from Gill Beck (Baildon) to Wyke Beck (GB104027063035) 2024 spills / hours 0 / 0.0 Long-term average 3.5 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period	River Aire	no change	100%
Island (River Aire) CSO Overflow on sewer network Company site name COMMERCIAL ROAD/CSO EA ID / permit YWS01926 · WRA8699 Outlet location SE2650035070 (OS grid reference) · View on Apple Maps WFD catchment Aire from Gill Beck (Baildon) to Wyke Beck (GB104027063035) 2024 spills / hours 0 / 0.0 Long-term average 0.0 spills a year (monitored since 2023) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period	River Aire	no change	100%
Stocks Hill CSO Overflow on sewer network Company site name STOCKS HILL/CSO EA ID / permit YWS01927 · WRA8702 Outlet location SE2916032720 (OS grid reference) · View on Apple Maps WFD catchment Low/Wortley/Pudsey Bks from Source to Milshaw Beck (GB104027062830) 2024 spills / hours 0 / 0.0 Long-term average 0.5 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period	Hol Beck	no change	100%
Town Farm 4 CSO Overflow on sewer network Company site name INNFOLD FARM 1/CSO EA ID / permit YWS01929 · WRA8707 Outlet location SE2896013604 (OS grid reference) · View on Apple Maps WFD catchment Dearne from Bentley Brook to Cawthorne Dyke (GB104027063260) 2024 spills / hours 1 / 3.3 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	River Dearne	down 100%	93%
Goddard Hall Road CSO Overflow on sewer network Company site name GODDARD HALL ROAD/CSO EA ID / permit YWS01930 · WRA8708 Outlet location SK3628090150 (OS grid reference) · View on Apple Maps WFD catchment Don from River Loxley confl to River Don Works (GB104027057412) 2024 spills / hours 0 / 0.0 Long-term average 0.3 spills a year (monitored since 2020) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period	Tributary of Bagley Dyke	no change	100%
Furnival Road CSO Overflow on sewer network Company site name FURNIVAL ROAD/CSO EA ID / permit YWS01931 · WRA8710 Outlet location SK3629288094 (OS grid reference) · View on Apple Maps WFD catchment Don from River Loxley confl to River Don Works (GB104027057412) 2024 spills / hours 0 / 0.0 Long-term average 0.8 spills a year (monitored since 2020) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period	River Don	no change	100%
John Calvert Lane CSO Overflow on sewer network Company site name JOHN CALVERT ROAD/CSO EA ID / permit YWS01932 · WRA8713 Outlet location SK4298084880 (OS grid reference) · View on Apple Maps WFD catchment Shire Brook (GB104027057773) 2024 spills / hours 0 / 0.0 Long-term average 0.7 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period	Tributary of the River Rother	no change	99%
Sheffield Road Fire Station CSO Overflow on sewer network Company site name SHEFFIELD RD FIRE STN/CSO EA ID / permit YWS01937 · WRA8726 Outlet location SK3880073300 (OS grid reference) · View on Apple Maps WFD catchment Rother, Spittal Brook to Doe Lea (GB104027057771) 2024 spills / hours 0 / 0.0 Long-term average 0.3 spills a year (monitored since 2020) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period	River Rother	no change	100%
Stonegate (CSO 174) CSO Overflow on sewer network Company site name BUSLINGTHORPE VALE/CSO EA ID / permit YWS01943 · WRA8734 Outlet location SE3021035490 (OS grid reference) · View on Apple Maps WFD catchment Meanwood Beck from Source to River Aire (GB104027062900) 2024 spills / hours 0 / 0.0 Long-term average 0.0 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period	Meanwood Beck	no change	97%
Valley Farm CSO Overflow on sewer network Company site name VALLEY FARM/CSO EA ID / permit YWS01948 · WRA8741 Outlet location SE2800038390 (OS grid reference) · View on Apple Maps WFD catchment Meanwood Beck from Source to River Aire (GB104027062900) 2024 spills / hours 0 / 0.0 Long-term average 0.0 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period	Adel Beck	no change	100%
Armstead Road CSO Overflow on sewer network Company site name ARMSTEAD ROAD/NO 2 CSO EA ID / permit YWS01955 · WRA8749 Outlet location SK4399083120 (OS grid reference) · View on Apple Maps WFD catchment Rother, Doe Lea to Don (GB104027057772) 2024 spills / hours 0 / 0.0 Long-term average 0.3 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement No improvement action in reporting period	Ochre Dyke	no change	100%
Crescent Road CSO Overflow on sewer network Company site name CRESCENT RD BIRKBY/2 CSO EA ID / permit YWS01961 · WRA8759 Outlet location SE1410018120 (OS grid reference) · View on Apple Maps WFD catchment River Colne from River Holme to River Calder (GB104027062550) 2024 spills / hours 0 / 0.0 Long-term average 0.2 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement No improvement action in reporting period	Tributary of Grimscar Dike	no change	100%
Endcliffe Vale Road CSO Overflow on sewer network Company site name ENDCLIFFE VALE ROAD/2 CSO EA ID / permit YWS01969 · WRA8774 Outlet location SK3331085820 (OS grid reference) · View on Apple Maps WFD catchment River Porter from Source to River Sheaf (GB104027057760) 2024 spills / hours 5 / 3.0 Long-term average 1.3 spills a year (monitored since 2020) Investigation Operational investigation completed Improvement No improvement action in reporting period	Porter Brook	down 100%	100%
Batley Mount Street CSO Overflow on sewer network Company site name BATLEY MOUNT STREET/CSO EA ID / permit YWS01977 · WRA8819 Outlet location SE2469023188 (OS grid reference) · View on Apple Maps WFD catchment Batley Beck from Source to River Calder (GB104027062670) 2024 spills / hours 0 / 0.0 Long-term average 12.2 spills a year (monitored since 2020) Monitor below 90% Comms failure / issue · Resolved - Apr Investigation Env Act (SODRP) investigation completed, UWWTR investigation completed, Operational investigation completed Improvement No improvement action in reporting period	Batley Beck	no change	69%
Old Road Chesterfield CSO Overflow on sewer network Company site name OLD ROAD CHESTERFIELD/CSO EA ID / permit YWS02001 · WRA9093 Outlet location SK3683970773 (OS grid reference) · View on Apple Maps WFD catchment Hipper from Source to River Rother (GB104027057660) 2024 spills / hours 0 / 0.0 Long-term average 0.8 spills a year (monitored since 2020) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period	River Hipper	no change	100%
Woodhouse Road 38 CSO Overflow on sewer network Company site name WOODHOUSE RD 38/CSO EA ID / permit YWS02012 · WRA9105 Outlet location SE0588640188 (OS grid reference) · View on Apple Maps WFD catchment Worth from Bridgehouse Beck to R Aire (GB104027062891) 2024 spills / hours 0 / 0.0 Long-term average 0.0 spills a year (monitored since 2023) Investigation UWWTR investigation ongoing Improvement No improvement action in reporting period	River Worth	no change	100%
Bridge Inn Keighley CSO Overflow on sewer network Company site name BRIDGE INN KEIGHLEY/CSO EA ID / permit YWS02013 · WRA9107 Outlet location SE0742042220 (OS grid reference) · View on Apple Maps WFD catchment Aire (Eshton Beck to R Worth) (GB104027063033) 2024 spills / hours 0 / 0.0 Long-term average 0.3 spills a year (monitored since 2020) Monitor below 90% Sensor failure / issue · Resolved - Feb Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period	River Aire	no change	88%
Fraser Road CSO Overflow on sewer network Company site name FRASER ROAD/CSO EA ID / permit YWS02018 · WRA9113 Outlet location SK3425183281 (OS grid reference) · View on Apple Maps WFD catchment River Sheaf from Source to River Porter (GB104027057750) 2024 spills / hours 1 / 0.3 Long-term average 3.3 spills a year (monitored since 2020) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period	River Sheaf	down 100%	96%
Snaithing Park Road CSO Overflow on sewer network Company site name SNAITHING PARK ROAD/CSO EA ID / permit YWS02019 · WRA9115 Outlet location SK3116086220 (OS grid reference) · View on Apple Maps WFD catchment River Porter from Source to River Sheaf (GB104027057760) 2024 spills / hours 0 / 0.0 Long-term average 0.7 spills a year (monitored since 2020) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period	Tributary of Porter Brook	no change	100%
Snaithing Lane CSO Overflow on sewer network Company site name SNAITHING LANE/CSO EA ID / permit YWS02020 · WRA9116 Outlet location SK3133086170 (OS grid reference) · View on Apple Maps WFD catchment River Porter from Source to River Sheaf (GB104027057760) 2024 spills / hours 3 / 2.3 Long-term average 2.2 spills a year (monitored since 2020) Investigation Operational investigation completed Improvement No improvement action in reporting period	Tributary of Porter Brook	down 100%	100%
Globe Road CSO Overflow on sewer network Company site name GLOBE ROAD/CSO EA ID / permit YWS02022 · WRA9118 Outlet location SE2966032930 (OS grid reference) · View on Apple Maps WFD catchment Low/Wortley/Pudsey Bks from Source to Milshaw Beck (GB104027062830) 2024 spills / hours 0 / 0.0 Long-term average 0.0 spills a year (monitored since 2020) Monitor below 90% Comms failure / issue · Resolved - Feb Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period	Hol Beck	no change	90%
Attercliffe Common CSO Overflow on sewer network Company site name ATTERCLIFFE COMMON/CSO EA ID / permit YWS02024 · WRA9123 Outlet location SK3802089390 (OS grid reference) · View on Apple Maps WFD catchment Don from River Loxley confl to River Don Works (GB104027057412) 2024 spills / hours 0 / 0.0 Long-term average 0.3 spills a year (monitored since 2020) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period	River Don	no change	100%
Meadowhall Way No.2 CSO Overflow on sewer network Company site name MEADOWHALL WAY/NO 2 CSO EA ID / permit YWS02027 · WRA9128 Outlet location SK3827090200 (OS grid reference) · View on Apple Maps WFD catchment Don from River Loxley confl to River Don Works (GB104027057412) 2024 spills / hours 0 / 0.0 Long-term average 0.2 spills a year (monitored since 2020) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period	River Don	no change	98%
Waingate CSO Overflow on sewer network Company site name WAINGATE/CSO EA ID / permit YWS02029 · WRA9130 Outlet location SK3572487758 (OS grid reference) · View on Apple Maps WFD catchment Don from River Loxley confl to River Don Works (GB104027057412) 2024 spills / hours 0 / 0.0 Long-term average 0.0 spills a year (monitored since 2020) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period	River Don	no change	100%
Vulcan Road CSO Overflow on sewer network Company site name VULCAN ROAD/CSO EA ID / permit YWS02033 · WRA9136 Outlet location SK3956090610 (OS grid reference) · View on Apple Maps WFD catchment Don from River Don Works to River Rother (GB104027057413) 2024 spills / hours 0 / 0.0 Long-term average 0.3 spills a year (monitored since 2020) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period	Tributary of the River Don	no change	100%
Effingham Street CSO Overflow on sewer network Company site name EFFINGHAM STREET/CSO EA ID / permit YWS02034 · WRA9137 Outlet location SK3635088100 (OS grid reference) · View on Apple Maps WFD catchment Don from River Loxley confl to River Don Works (GB104027057412) 2024 spills / hours 0 / 0.0 Long-term average 0.3 spills a year (monitored since 2020) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period	River Don	no change	100%
Asling Road CSO Overflow on sewer network Company site name ALSING ROAD/CSO EA ID / permit YWS02037 · WRA9141 Outlet location SK3928091340 (OS grid reference) · View on Apple Maps WFD catchment Blackburn Brook from Source to River Don (GB104027057440) 2024 spills / hours 0 / 0.0 Long-term average 0.0 spills a year (monitored since 2020) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period	Blackburn Brook	no change	94%
Oakfield Wood Lane CSO Overflow on sewer network Company site name OAKFIELD WOOD LANE/CSO EA ID / permit YWS02049 · WRA9153 Outlet location SE2860036350 (OS grid reference) · View on Apple Maps WFD catchment Meanwood Beck from Source to River Aire (GB104027062900) 2024 spills / hours 1 / 0.3 Long-term average 0.8 spills a year (monitored since 2020) Monitor below 90% Comms failure / issue · Resolved - Dec Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period	Meanwood Beck	down 100%	70%
Thornton Road 201 CSO Overflow on sewer network Company site name THORNTON ROAD 201/CSO EA ID / permit YWS02050 · WRA9155 Outlet location SE0907032800 (OS grid reference) · View on Apple Maps WFD catchment Clayton Beck (Source to Bradford Bk) (GB104027062861) 2024 spills / hours 1 / 0.3 Long-term average 0.2 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period	Pinch Beck	down 100%	95%
Dawsons Hill CSO Overflow on sewer network Company site name DAWSONS HILL/CSO EA ID / permit YWS02051 · WRA9156 Outlet location SE1015032370 (OS grid reference) · View on Apple Maps WFD catchment Clayton Beck (Source to Bradford Bk) (GB104027062861) 2024 spills / hours 5 / 72 Long-term average 1.0 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period	Pinch Beck	down 100%	100%
Roslyn Place CSO Overflow on sewer network Company site name ROSLYN PLACE/CSO EA ID / permit YWS02053 · WRA9159 Outlet location SE1492032590 (OS grid reference) · View on Apple Maps WFD catchment Bradford Beck (Clayton Bk to R Aire) (GB104027062862) 2024 spills / hours 0 / 0.0 Long-term average 2.0 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period	Horton Beck	no change	100%
Birch Lane CSO Overflow on sewer network Company site name BIRCH LANE/CSO EA ID / permit YWS02054 · WRA9160 Outlet location SE1662031050 (OS grid reference) · View on Apple Maps WFD catchment Bradford Beck (Clayton Bk to R Aire) (GB104027062862) 2024 spills / hours 6 / 3.3 Long-term average 4.7 spills a year (monitored since 2020) Monitor below 90% Comms failure / issue · Resolved - May Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement No improvement action in reporting period	Tributary of Bowling Beck	down 100%	79%
Upper Park House CSO Overflow on sewer network Company site name UPPER PARK HOUSE/CSO EA ID / permit YWS02057 · WRA9163 Outlet location SE1644029120 (OS grid reference) · View on Apple Maps WFD catchment Spen Beck from Source to River Calder (GB104027062710) 2024 spills / hours 2 / 1.0 Long-term average 1.2 spills a year (monitored since 2020) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period	Low Moor Beck	down 100%	100%
Rooley Avenue CSO Overflow on sewer network Company site name ROOLEY AVENUE/CSO EA ID / permit YWS02059 · WRA9165 Outlet location SE1598829987 (OS grid reference) · View on Apple Maps WFD catchment Bradford Beck (Clayton Bk to R Aire) (GB104027062862) 2024 spills / hours 0 / 0.0 Long-term average 0.0 spills a year (monitored since 2020) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period	Dean Beck	no change	100%
Common Road CSO Overflow on sewer network Company site name COMMON ROAD/CSO EA ID / permit YWS02060 · WRA9166 Outlet location SE1563328782 (OS grid reference) · View on Apple Maps WFD catchment Spen Beck from Source to River Calder (GB104027062710) 2024 spills / hours 1 / 0.5 Long-term average 0.3 spills a year (monitored since 2020) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period	Tributary of Low Moor Beck	down 100%	92%
Smith Avenue CSO Overflow on sewer network Company site name SMITH AVENUE/CSO EA ID / permit YWS02061 · WRA9167 Outlet location SE1531329890 (OS grid reference) · View on Apple Maps WFD catchment Spen Beck from Source to River Calder (GB104027062710) 2024 spills / hours 0 / 0.0 Long-term average 0.3 spills a year (monitored since 2020) Monitor below 90% Comms failure / issue · Resolved - Mar Investigation No investigation activity in reporting period Improvement No improvement action in reporting period	Tributary of Low Moor Beck	no change	83%
Brook Motors CSO Overflow on sewer network Company site name BROOK MOTORS/CSO EA ID / permit YWS02069 · WRA9175 Outlet location SE1384016120 (OS grid reference) · View on Apple Maps WFD catchment River Colne from Wessenden Brook to R Holme (GB104027063330) 2024 spills / hours 0 / 0.0 Long-term average 0.3 spills a year (monitored since 2020) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period	River Colne	no change	100%
Springdale Mills CSO Overflow on sewer network Company site name SPRINGDALE MILLS/CSO EA ID / permit YWS02070 · WRA9176 Outlet location SE1384016130 (OS grid reference) · View on Apple Maps WFD catchment River Colne from Wessenden Brook to R Holme (GB104027063330) 2024 spills / hours 0 / 0.0 Long-term average 0.7 spills a year (monitored since 2020) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period	River Colne	no change	100%
Charlie Browns CSO Overflow on sewer network Company site name CHARLIE BROWNS/CSO EA ID / permit YWS02073 · WRA9179 Outlet location SE1353016090 (OS grid reference) · View on Apple Maps WFD catchment River Colne from Wessenden Brook to R Holme (GB104027063330) 2024 spills / hours 0 / 0.0 Long-term average 0.5 spills a year (monitored since 2020) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period	River Colne	no change	100%
Woodseats Road 1 CSO Overflow on sewer network Company site name WOODSEATS ROAD 1/CSO EA ID / permit YWS02086 · WRA9192 Outlet location SK3437083910 (OS grid reference) · View on Apple Maps WFD catchment River Sheaf from Source to River Porter (GB104027057750) 2024 spills / hours 2 / 1.8 Long-term average 2.6 spills a year (monitored since 2020) Monitor below 90% Comms failure / issue · Resolved - February after reporting year Investigation No investigation activity in reporting period Improvement No improvement action in reporting period	River Sheaf	down 100%	7%
New Scarborough CSO Overflow on sewer network Company site name NEW SCARBOROUGH/CSO EA ID / permit YWS02098 · WRA9204 Outlet location SE3192020870 (OS grid reference) · View on Apple Maps WFD catchment River Chald from Source to River Calder (GB104027062620) 2024 spills / hours 0 / 0.0 Long-term average 0.0 spills a year (monitored since 2020) Monitor below 90% Comms failure / issue · Resolved - Apr Investigation No investigation activity in reporting period Improvement No improvement action in reporting period	Alverthorpe Beck	no change	85%
Queens Road Beighton CSO Overflow on sewer network Company site name QUEENS ROAD BEIGHTON/CSO EA ID / permit YWS02102 · WRA9208 Outlet location SK4431083830 (OS grid reference) · View on Apple Maps WFD catchment Rother, Doe Lea to Don (GB104027057772) 2024 spills / hours 0 / 0.0 Long-term average 1.8 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period	Ochre Beck	no change	100%
Crow Lane Field CSO Overflow on sewer network Company site name CROW LANE FIELD/CSO EA ID / permit YWS02106 · WRA9212 Outlet location SK3792077870 (OS grid reference) · View on Apple Maps WFD catchment Drone from Source to River Whitting (GB104027057710) 2024 spills / hours 1 / 0.3 Long-term average 2.5 spills a year (monitored since 2020) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period	Tributary of the River Drone	down 100%	100%
Siscar Cottage CSO Overflow on sewer network Company site name SISCAR COTTAGE/CSO EA ID / permit YWS02108 · WRA9214 Outlet location SK3759077184 (OS grid reference) · View on Apple Maps WFD catchment Drone from Source to River Whitting (GB104027057710) 2024 spills / hours 0 / 0.0 Long-term average 0.8 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period	River Drone	no change	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.