Storm overflow register · 2025 annual return

Northumbrian Water storm overflows, 2025

Northumbrian Water reported 1,561 storm overflows in England for 2025. Together they recorded 27,860 spills over 123,803 hours, an average of 17.8 spills per overflow against 20.4 across England. That ranks 5 of 10 companies, where 1 is the fewest spills per overflow. Counting the same overflows in both years, spills were down 32% on 2024.

255 overflows did not spill · 69 spilled more than 60 times · 1,359 had monitors working for 90% of the year or more · 183 sewage treatment works with overflows

Hours spilling by month, 2025

Hours spilling, all Northumbrian Water overflows, from the start/stop records. Spills running across a month end are split between the months.

All Northumbrian 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 2025	Hours 2025	Spills vs 2024	Monitor uptime
Chare Bank CSO Overflow on sewer network EA ID / permit NWL00269 · 234/1156 Outlet location NZ1005055440 (OS grid reference) · View on Apple Maps WFD catchment Derwent from Burnhope Burn to River Tyne (GB103023074790) 2024 spills / hours 40 / 142 Long-term average 27.3 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing, Operational investigation ongoing Improvement Operational improvement ongoing Volume & pollution Estimate from 18 hours spilling →	River Derwent	19	18	down 53%	100%
CSO at Cromwell Road Overflow on sewer network EA ID / permit NWL00369 · 235/1199 Outlet location NZ2966463002 (OS grid reference) · View on Apple Maps WFD catchment TYNE (GB510302310200) 2024 spills / hours 27 / 36 Long-term average 28.1 spills a year (monitored since 2018) Investigation Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 18 hours spilling →	Tyne Estuary	21	18	down 22%	100%
Atlas Wynd Sewage Pumping Station Storm discharge at pumping station EA ID / permit NWL01583 · 25/04/1647 Outlet location NZ4208112677 (OS grid reference) · View on Apple Maps WFD catchment Tees from Skerne to Tidal Limit (GB103025072595) 2024 spills / hours 10 / 10 Long-term average 11.5 spills a year (monitored since 2024) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 18 hours spilling →	River Tees	13	18	up 30%	100%
Durham Road CSO Overflow on sewer network EA ID / permit NWL00466 · 245/1076 Outlet location NZ2075951817 (OS grid reference) · View on Apple Maps WFD catchment Twizell Burn from Source to Cong Burn (GB103024077590) 2024 spills / hours 7 / 5.5 Long-term average 5.4 spills a year (monitored since 2014) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 18 hours spilling →	Stanley Burn Tributary	22	18	up 214%	100%
Dipwood Road CSO GO16 Overflow on sewer network EA ID / permit NWL00450 · 234/1126 Outlet location NZ1595858053 (OS grid reference) · View on Apple Maps WFD catchment Derwent from Burnhope Burn to River Tyne (GB103023074790) 2024 spills / hours 26 / 39 Long-term average 25.9 spills a year (monitored since 2013) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 18 hours spilling →	Derwent, Tributary of	23	18	down 12%	100%
Pont B CSO Overflow on sewer network EA ID / permit NWL01045 · 234/1055 Outlet location NZ1251052520 (OS grid reference) · View on Apple Maps WFD catchment Pont Burn Catchment (trib of Derwent) (GB103023074780) 2024 spills / hours 46 / 299 Long-term average 24.9 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing, Operational investigation ongoing Improvement Operational improvement ongoing Volume & pollution Estimate from 18 hours spilling →	Tributary Pont Burn	13	18	down 72%	100%
Acklam Road CSO Overflow on sewer network EA ID / permit NWL01571 · 25/04/1673 Outlet location NZ4614917663 (OS grid reference) · View on Apple Maps WFD catchment Tees (GB510302509900) 2024 spills / hours 12 / 14 Long-term average 9.7 spills a year (monitored since 2023) Monitor below 90% Comms failure / issue · Resolved - Mar Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 18 hours spilling →	The Old River Tees	16	18	up 33%	85%
Cos to Rear 12 Springwell Close Overflow on sewer network EA ID / permit NWL00330 · 25/02/1097 Outlet location NZ1707220059 (OS grid reference) · View on Apple Maps WFD catchment Piercebridge Beck from Source to Tees (GB103025072300) 2024 spills / hours 30 / 69 Long-term average 13.7 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 18 hours spilling →	Langton Beck, Tees Catch	24	18	down 20%	100%
Shincliffe SSO Manhole No. 2 Storm discharge at pumping station EA ID / permit NWL01196 · 245/E/0499 Outlet location NZ2872041000 (OS grid reference) · View on Apple Maps WFD catchment Wear from Croxdale Beck to Lumley Park Burn (GB103024077621) 2024 spills / hours 3 / 5.0 Long-term average 8.1 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 17 hours spilling →	Wear	7	17	up 133%	99%
Station Road CSO Overflow on sewer network EA ID / permit NWL01291 · 255/1221 Outlet location NZ4391543374 (OS grid reference) · View on Apple Maps WFD catchment Tyne from Watersmeet to Tidal Limit (GB103023075801) 2024 spills / hours 24 / 27 Long-term average 25.9 spills a year (monitored since 2013) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 17 hours spilling →	Horden Burn	17	17	down 29%	96%
Wear Chare CSO Overflow on sewer network EA ID / permit NWL01468 · 241/1116 Outlet location NZ2110830404&NZ2111130406 (OS grid reference) · View on Apple Maps WFD catchment Wear from Beechburn Beck to Gaunless (GB103024077463) 2024 spills / hours 23 / 23 Long-term average 37.5 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing, Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 17 hours spilling →	Wear	19	17	down 17%	98%
Garrigill Manhole 9901 SSO Overflow on sewer network EA ID / permit NWL00582 · 232/1020 Outlet location NY7390641881 (OS grid reference) · View on Apple Maps WFD catchment South Tyne from Cross Gill to Black Burn (Aleson) (GB103023075400) 2024 spills / hours 10 / 39 Long-term average 5.0 spills a year (monitored since 2020) Monitor below 90% Comms failure / issue · Resolved - January after reporting year Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 17 hours spilling →	South Tyne	4	17	down 60%	83%
Front Street (Town Hall) CSO Overflow on sewer network EA ID / permit NWL00569 · 232/1168 Outlet location NY7172346568 (OS grid reference) · View on Apple Maps WFD catchment South Tyne from Black Burn to Tipalt Burn (GB103023075531) 2024 spills / hours 46 / 64 Long-term average 23.0 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 17 hours spilling →	River Nent	16	17	down 65%	100%
Wooler SPS Storm discharge at pumping station EA ID / permit NWL01552 · 210/0970 Outlet location NT9946528531 (OS grid reference) · View on Apple Maps WFD catchment Wooler Water from Harthope Burn to Till (GB102021072930) 2024 spills / hours 14 / 40 Long-term average 11.9 spills a year (monitored since 2019) Investigation Env Act (SODRP) investigation ongoing, Operational investigation ongoing Improvement Operational improvement ongoing Volume & pollution Estimate from 17 hours spilling →	Wooler Water	12	17	down 14%	100%
Church Road CSO Overflow on sewer network EA ID / permit NWL00288 · 234/1132 Outlet location NZ0970051700 (OS grid reference) · View on Apple Maps WFD catchment Derwent from Burnhope Burn to River Tyne (GB103023074790) 2024 spills / hours 46 / 136 Long-term average 43.8 spills a year (monitored since 2013) Investigation Operational investigation ongoing Improvement Operational improvement ongoing Volume & pollution Estimate from 17 hours spilling →	Backstone Burn	19	17	down 59%	100%
Steppy Lane Pumping Station Storm discharge at pumping station EA ID / permit NWL00788 · 222/0868 Outlet location NU2382611576 (OS grid reference) · View on Apple Maps WFD catchment Aln from Edlingham Burn to Tidal Limit (GB103022076350) 2024 spills / hours 19 / 74 Long-term average 14.1 spills a year (monitored since 2019) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 17 hours spilling →	River Aln	9	17	down 53%	100%
Westgate Caravan Site CSO Overflow on sewer network EA ID / permit NWL01504 · 241/1064 Outlet location NY9074238028 (OS grid reference) · View on Apple Maps WFD catchment Wear from Middlehope Burn to Houselop Beck (GB103024077461) 2024 spills / hours 1 / 4.8 Long-term average 2.0 spills a year (monitored since 2018) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 17 hours spilling →	Wear	2	17	up 100%	99%
Hay Street CSO SU056 Overflow on sewer network EA ID / permit NWL00658 · 245/1374 Outlet location NZ3953357455 (OS grid reference) · View on Apple Maps WFD catchment WEAR (GB510302402900) 2024 spills / hours 20 / 21 Long-term average 19.1 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 17 hours spilling →	Wear (Saline Estuary)	10	17	down 50%	100%
Mill Strand Combined Sewer Overflow Overflow on sewer network EA ID / permit NWL00889 · 210/1348 Outlet location NT9965652335 (OS grid reference) · View on Apple Maps WFD catchment TWEED (GB510202110000) Bathing water Spittal 2024 spills / hours 4 / 0.4 Long-term average 10.3 spills a year (monitored since 2023) Monitor below 90% Telemetry or data archiving failure / issue · Resolved - Oct Investigation Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 17 hours spilling →	River Tweed (Saline Estuary)	8	17	up 100%	80%
Dock Road CSO (BT44) Overflow on sewer network EA ID / permit NWL00451 · 210/1363 Outlet location NT9987152110 (OS grid reference) · View on Apple Maps WFD catchment TWEED (GB510202110000) Bathing water Spittal 2024 spills / hours 35 / 64 Long-term average 36.7 spills a year (monitored since 2013) Investigation Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 17 hours spilling →	River Tweed	19	17	down 46%	95%
Hetton Park Bowling Green CSO Overflow on sewer network EA ID / permit NWL00669 · 245/1364 Outlet location NZ3507247840 (OS grid reference) · View on Apple Maps WFD catchment Lumley Park Burn from Source to Herrington Burn (GB103024077580) 2024 spills / hours 24 / 35 Long-term average 17.0 spills a year (monitored since 2013) Monitor below 90% Comms failure / issue · Not Applicable - Ongoing investigation Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 16 hours spilling →	Hetton Burn	12	16	down 50%	89%
Kilburn Road CSO Overflow on sewer network EA ID / permit NWL00751 · 254/D/0407 Outlet location NZ4293218548 (OS grid reference) · View on Apple Maps WFD catchment Lustrum Beck Catchment (trib of Tees) (GB103025072550) 2024 spills / hours 7 / 15 Long-term average 7.6 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 16 hours spilling →	Greens Beck	7	16	no change	99%
North Seaton Level Crossing CSO Overflow on sewer network EA ID / permit NWL00966 · 225/1020 Outlet location NZ2773285873 (OS grid reference) · View on Apple Maps WFD catchment Wansbeck from Bothal Burn to North Sea (GB103022077062) 2024 spills / hours 39 / 200 Long-term average 37.8 spills a year (monitored since 2020) Monitor below 90% Comms failure / issue · Not Applicable - Ongoing investigation Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 16 hours spilling →	River Wansbeck(Saline Estuary)	3	16	down 92%	31%
Blyth NO6 SPS Storm discharge at pumping station EA ID / permit NWL00165 · 226/1177 Outlet location NZ3101282307 (OS grid reference) · View on Apple Maps WFD catchment BLYTH (N) (GB510302203200) 2024 spills / hours 65 / 47 Long-term average 68.8 spills a year (monitored since 2020) Investigation Operational investigation completed Improvement Operational improvement ongoing Volume & pollution Estimate from 16 hours spilling →	River Blyth	29	16	down 55%	100%
Grangetown CSO Overflow on sewer network EA ID / permit NWL00605 · 255/1202 Outlet location NZ4129455288 (OS grid reference) · View on Apple Maps WFD catchment North Sea (GB650301500002) 2024 spills / hours 34 / 45 Long-term average 24.8 spills a year (monitored since 2020) Monitor below 90% Power failure / issue · Resolved - Sep Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 16 hours spilling →	The North Sea	10	16	down 71%	56%
Chatton CSO Overflow on sewer network EA ID / permit NWL00272 · NPSWQD006661 Outlet location NU0614028346 (OS grid reference) · View on Apple Maps WFD catchment Till from Roddam Burn to Glen (GB102021073042) 2024 spills / hours 15 / 28 Long-term average 12.1 spills a year (monitored since 2019) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 16 hours spilling →	The River Till	17	16	up 13%	100%
Snowdon Road PS Storm discharge at pumping station EA ID / permit NWL01216 · 254/1511 Outlet location NZ4950021430 (OS grid reference) · View on Apple Maps WFD catchment River Tees Estury (GB510302509900) 2024 spills / hours 3 / 1.0 Long-term average 10.5 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 16 hours spilling →	The River Tees	23	16	up 667%	100%
Fellside CSO (Der 174) Overflow on sewer network EA ID / permit NWL00541 · 244/1010 Outlet location NZ1143049200 (OS grid reference) · View on Apple Maps WFD catchment Smallhope Burn from Source to Browney, Stocke (GB103024077330) 2024 spills / hours 17 / 28 Long-term average 17.6 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 16 hours spilling →	Backgill Burn Tributary	13	16	down 24%	100%
Chowdene CSO Overflow on sewer network EA ID / permit NWL00282 · 235/F/0655 Outlet location NZ2580559497 (OS grid reference) · View on Apple Maps WFD catchment Team from Source to Tyne (GB103023075670) 2024 spills / hours 26 / 30 Long-term average 27.6 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 16 hours spilling →	Team, Tributary of	20	16	down 23%	100%
North Groyne SPS Storm discharge at pumping station EA ID / permit NWL00961 · 235/1481 Outlet location NZ3642868498 (OS grid reference) · View on Apple Maps WFD catchment TYNE (GB510302310200) Bathing water Littlehaven Beach 2024 spills / hours 23 / 69 Long-term average 15.3 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement Operational improvement ongoing Volume & pollution Estimate from 16 hours spilling →	Tyne Estuary	12	16	down 48%	100%
Belford Sewage Treatment Works Storm tank at sewage works Sewage works Belford EA ID / permit NWL00111 · 221/1034 Outlet location NU1171033885 (OS grid reference) · View on Apple Maps WFD catchment Belford Burn from Source to Ross Low (GB103022076460) 2024 spills / hours 91 / 1,349 Long-term average 56.7 spills a year (monitored since 2020) Monitor below 90% Sensor failure / issue · Resolved - Dec Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 15 hours spilling →	Belford Burn	2	15	down 98%	6%
Abbey Court (Ampleforth Avenue) CSO Overflow on sewer network EA ID / permit NWL00019 · 254/1855 Outlet location NZ5475118719 (OS grid reference) · View on Apple Maps WFD catchment Cross Beck (river Tees) (GB510302509900) 2024 spills / hours 11 / 25 Long-term average 7.4 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 15 hours spilling →	Cross Beck	8	15	down 27%	100%
Manor Gardens CSO Overflow on sewer network EA ID / permit NWL00847 · 235/1965 Outlet location NZ2966362978 (OS grid reference) · View on Apple Maps WFD catchment TYNE (GB510302310200) 2024 spills / hours 13 / 37 Long-term average 15.1 spills a year (monitored since 2013) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 15 hours spilling →	River Tyne (Estuary)	15	15	up 15%	94%
Merryshields CSO Overflow on sewer network EA ID / permit NWL00869 · 233/1255 Outlet location NZ0599061540 (OS grid reference) · View on Apple Maps WFD catchment Tyne from Watersmeet to Tidal Limit (GB103023075801) 2024 spills / hours 28 / 79 Long-term average 26.4 spills a year (monitored since 2013) Monitor below 90% Telemetry or data archiving failure / issue · Resolved - May Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 15 hours spilling →	Bellassis Burn	15	15	down 46%	88%
The Slack CSO (Te 010) Overflow on sewer network EA ID / permit NWL01375 · 242/1064 Outlet location NZ1131425356 (OS grid reference) · View on Apple Maps WFD catchment Gaunless from Source to Hummer Beck (GB103024072690) 2024 spills / hours 6 / 16 Long-term average 4.2 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 15 hours spilling →	River Gaunless	5	15	down 17%	91%
Acomb Crescent (Cathedral) CSO Overflow on sewer network EA ID / permit NWL00022 · 235/1609 Outlet location NZ2296069880 (OS grid reference) · View on Apple Maps WFD catchment Ouse Burn from Source to Tyne (GB103023075780) 2024 spills / hours 18 / 57 Long-term average 14.8 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 15 hours spilling →	Ouse Burn	12	15	down 33%	100%
Church Lane CSO Overflow on sewer network EA ID / permit NWL00286 · 244/1023 Outlet location NZ1226039080 (OS grid reference) · View on Apple Maps WFD catchment Deerness from Source to Hedleyhope Burn (GB103024077270) 2024 spills / hours 18 / 20 Long-term average 14.8 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 15 hours spilling →	Deerness	18	15	no change	98%
The Lendings (Startforth) SPS Storm discharge at pumping station EA ID / permit NWL01367 · 252/0993 Outlet location NZ0499515949 (OS grid reference) · View on Apple Maps WFD catchment Tees from Percy Beck to River Greta (GB103025072512) 2024 spills / hours 17 / 21 Long-term average 16.7 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement Operational improvement completed Volume & pollution Estimate from 15 hours spilling →	River Tees	6	15	down 65%	100%
Burnhope Sewage Pumping Station Overflow on sewer network EA ID / permit NWL00218 · 245/A/0575 Outlet location NZ1932748466 (OS grid reference) · View on Apple Maps WFD catchment Cong Burn from Source to Twizell Burn (GB103024077560) 2024 spills / hours 17 / 28 Long-term average 64.8 spills a year (monitored since 2013) Monitor below 90% Comms failure / issue · Resolved - Apr Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 15 hours spilling →	Ibbetsons' Sike (River Wear)	25	15	up 47%	81%
CSO Forth Banks Overflow on sewer network EA ID / permit NWL00386 · 235/1628 Outlet location NZ2474263431 (OS grid reference) · View on Apple Maps WFD catchment TYNE (GB510302310200) 2024 spills / hours 28 / 31 Long-term average 29.5 spills a year (monitored since 2013) Investigation Operational investigation ongoing Improvement Operational improvement ongoing Volume & pollution Estimate from 15 hours spilling →	Tyne Estuary	17	15	down 39%	97%
Kyloe View SSO Overflow on sewer network EA ID / permit NWL00767 · 210/0995 Outlet location NU0218339803 (OS grid reference) · View on Apple Maps WFD catchment South Low from Source to Haggerston Bridge (GB103021073221) 2024 spills / hours 25 / 36 Long-term average 20.7 spills a year (monitored since 2017) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement Operational improvement ongoing Volume & pollution Estimate from 15 hours spilling →	Tributary of the Low	22	15	down 12%	97%
Ouseburn East PS Storm discharge at pumping station EA ID / permit NWL00989 · 235/1825 Outlet location NZ2647864093 (OS grid reference) · View on Apple Maps WFD catchment TYNE (GB510302310200) 2024 spills / hours 99 / 319 Long-term average 56.0 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing, Operational investigation ongoing Improvement Operational improvement ongoing Volume & pollution Estimate from 15 hours spilling →	River Tyne Saline Estuary	12	15	down 88%	99%
Atherstone Drive CSO (L022) Overflow on sewer network EA ID / permit NWL00065 · 256/1044 Outlet location NZ6138915392 (OS grid reference) · View on Apple Maps WFD catchment Skelton Beck Catch (Saltburn) trib of North Sea (GB103025071970) 2024 spills / hours 12 / 65 Long-term average 7.0 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 15 hours spilling →	Tributary of Chapel Beck	6	15	down 50%	100%
Elsdon Sewage Treatment Works Inlet overflow at sewage works Sewage works Elsdon EA ID / permit NWL00511 · 231/1027 Outlet location NY9372992983 (OS grid reference) · View on Apple Maps WFD catchment Elsdon Burn Upper Catchment West (GB103023075240) 2024 spills / hours 35 / 96 Long-term average 22.5 spills a year (monitored since 2021) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 15 hours spilling →	Elsdon Burn	18	15	down 49%	100%
Zetland Row CSO Overflow on sewer network EA ID / permit NWL01567 · 256/1076 Outlet location NZ7137519883 (OS grid reference) · View on Apple Maps WFD catchment Kilton Beck from Middle Gill Beck to North Sea (GB103025071950) 2024 spills / hours 10 / 36 Long-term average 7.2 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 15 hours spilling →	Skinningrove Beck (Kilton B.)	4	15	down 60%	96%
Galgate CSO Overflow on sewer network EA ID / permit NWL00580 · 252/1122 Outlet location NZ0479416561 (OS grid reference) · View on Apple Maps WFD catchment Tees from Percy Beck to River Greta (GB103025072512) 2024 spills / hours 19 / 26 Long-term average 12.4 spills a year (monitored since 2018) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 15 hours spilling →	River Tees	14	15	down 26%	97%
Sowerby Crescent/North Rd Junct CSO Overflow on sewer network EA ID / permit NWL01250 · 25/04/1570 Outlet location NZ5217108122 (OS grid reference) · View on Apple Maps WFD catchment Leven from Source to Tame (GB103025071890) 2024 spills / hours 10 / 13 Long-term average 4.5 spills a year (monitored since 2013) Monitor below 90% Installation set-up/design issue · Resolved - Aug Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 15 hours spilling →	River Leven	6	15	down 40%	71%
Gill Cemetery CSO (SU061) Overflow on sewer network EA ID / permit NWL00587 · 245/1371 Outlet location NZ3925257487 (OS grid reference) · View on Apple Maps WFD catchment WEAR (GB510302402900) 2024 spills / hours 23 / 21 Long-term average 50.1 spills a year (monitored since 2013) Monitor below 90% Comms failure / issue · Resolved - January after reporting year Investigation Env Act (SODRP) investigation ongoing, Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 15 hours spilling →	Wear (Saline Estuary)	18	15	down 22%	84%
Elwin Place CSO Overflow on sewer network EA ID / permit NWL00516 · 245/1275 Outlet location NZ2549052510 (OS grid reference) · View on Apple Maps WFD catchment Cong Burn from Twizell Burn to Wear (GB103024077600) 2024 spills / hours 19 / 25 Long-term average 22.9 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 15 hours spilling →	Trib of Cong Burn	14	15	down 26%	99%
Lyndhurst Road CSO Overflow on sewer network EA ID / permit NWL00827 · NPSWQD005300 Outlet location NZ2892985584 (OS grid reference) · View on Apple Maps WFD catchment Rushyford Beck from Source to Woodham Burn (GB103025072450) Bathing water Newbiggin North; Newbiggin South 2024 spills / hours 24 / 32 Long-term average 18.1 spills a year (monitored since 2015) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 14 hours spilling →	River Wansbeck	14	14	down 42%	97%

Sewage treatment works

Storm tanks and inlet overflows at each Northumbrian 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.