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
Westline Industrial Estate CSO Overflow on sewer network EA ID / permit NWL01506 · 235/1872 Outlet location NZ2648055681 (OS grid reference) · View on Apple Maps WFD catchment Team from Source to Tyne (GB103023075670) 2024 spills / hours 1 / 0.3 Long-term average 2.2 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.3 hours spilling →	Rowletch Burn	1	0.3	no change	100%
Aln Bank CSO Overflow on sewer network EA ID / permit NWL00037 · 222/0865 Outlet location NU0711612015 (OS grid reference) · View on Apple Maps WFD catchment Aln from Callaly Burn to Coe Burn (GB103022076310) 2024 spills / hours 5 / 46 Long-term average 7.0 spills a year (monitored since 2022) Investigation Env Act (SODRP) investigation ongoing, Operational investigation ongoing Improvement Operational improvement ongoing Volume & pollution Estimate from 0.3 hours spilling →	River Aln	3	0.3	down 40%	100%
Hartley Caravan Park PS Storm discharge at pumping station EA ID / permit NWL00649 · 226/1090 Outlet location NZ3443475772 (OS grid reference) · View on Apple Maps WFD catchment Tyne and Wear (GB650301500002) 2024 spills / hours 6 / 1.4 Long-term average 5.5 spills a year (monitored since 2020) Investigation Operational investigation completed Improvement Operational improvement ongoing Volume & pollution Estimate from 0.3 hours spilling →	North Sea	2	0.3	down 67%	93%
Palace Street North CSO 1 Overflow on sewer network Company site name PALACE STREET NORTH CSO 2 EA ID / permit NWL01001 · 210/1357 Outlet location NT9993852464 (OS grid reference) · View on Apple Maps WFD catchment TWEED (GB510202110000) Bathing water Spittal 2024 spills / hours 11 / 3.1 Long-term average 11.8 spills a year (monitored since 2013) Investigation Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.3 hours spilling →	River Tweed (Saline Estuary)	1	0.3	down 91%	96%
Rutland Street/Leeholme Road CSO Overflow on sewer network EA ID / permit NWL01133 · 253/1260 Outlet location NZ2573030190 (OS grid reference) · View on Apple Maps WFD catchment Rushyford Beck from Source to Woodham Burn (GB103025072450) 2024 spills / hours 0 / 0.0 Long-term average 0.8 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 0.3 hours spilling →	Rushyford Beck Tributary	2	0.3	up from 0	98%
Tay Street CSO Overflow on sewer network EA ID / permit NWL01344 · 234/1160 Outlet location NZ1242358329 (OS grid reference) · View on Apple Maps WFD catchment Derwent from Burnhope Burn to River Tyne (GB103023074790) 2024 spills / hours 4 / 1.5 Long-term average 6.5 spills a year (monitored since 2013) Investigation Operational investigation ongoing Improvement Operational improvement ongoing Volume & pollution Estimate from 0.3 hours spilling →	Trib of River Derwent	2	0.3	down 50%	99%
Darlington Lane SSO Overflow on sewer network EA ID / permit NWL00421 · 25/04/1623 Outlet location NZ4370021100 (OS grid reference) · View on Apple Maps WFD catchment Lustrum Beck Catchment (trib of Tees) (GB103025072550) 2024 spills / hours 6 / 3.8 Long-term average 11.0 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement Operational improvement completed Volume & pollution Estimate from 0.3 hours spilling →	Lustrum Beck	1	0.3	down 83%	99%
Shilbottle CSO Overflow on sewer network EA ID / permit NWL01190 · 223/G/0089 Outlet location NU2064008830 (OS grid reference) · View on Apple Maps WFD catchment Tyelaw Burn Catchment (trib of Coquet) (GB103022076720) 2024 spills / hours 0 / 0.0 Long-term average 0.1 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement Operational improvement ongoing Volume & pollution Estimate from 0.3 hours spilling →	Tyelaw Burn	1	0.3	up from 0	94%
Woolsington CSO Overflow on sewer network EA ID / permit NWL01554 · EPRCB3191ED Outlet location NZ1961469983 (OS grid reference) · View on Apple Maps WFD catchment Ouse Burn from Source to Tyne (GB103023075780) 2024 spills / hours 0 / 0.0 Long-term average 0.6 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.3 hours spilling →	Ouse Burn	1	0.3	up from 0	99%
St Nicholas Hospital SSO Overflow on sewer network EA ID / permit NWL01267 · 235/1548 Outlet location NZ2422069510 (OS grid reference) · View on Apple Maps WFD catchment Ouse Burn from Source to Tyne (GB103023075780) 2024 spills / hours 3 / 4.3 Long-term average 3.5 spills a year (monitored since 2013) Monitor below 90% Comms failure / issue · Resolved - Dec Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.2 hours spilling →	Ouse Burn	2	0.2	down 33%	85%
Beech Hill CSO Overflow on sewer network EA ID / permit NWL00105 · 233/D/0390 Outlet location NY9258164111 (OS grid reference) · View on Apple Maps WFD catchment Tyne from Watersmeet to Tidal Limit (GB103023075801) 2024 spills / hours 6 / 0.5 Long-term average 3.7 spills a year (monitored since 2013) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 0.2 hours spilling →	Cockshaw Burn Culverted	4	0.2	down 33%	95%
Congburn Bank CSO Overflow on sewer network EA ID / permit NWL00312 · 245/E/0621 Outlet location NZ2354749568 (OS grid reference) · View on Apple Maps WFD catchment Cong Burn from Source to Twizell Burn (GB103024077560) 2024 spills / hours 4 / 1.5 Long-term average 4.6 spills a year (monitored since 2014) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.2 hours spilling →	Cong Burn	3	0.2	down 25%	92%
CSO Outside Milkwell Cottages Overflow on sewer network EA ID / permit NWL00395 · 233/1246 Outlet location NY9892964220 (OS grid reference) · View on Apple Maps WFD catchment Tyne from Watersmeet to Tidal Limit (GB103023075801) 2024 spills / hours 5 / 3.0 Long-term average 2.0 spills a year (monitored since 2013) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 0.2 hours spilling →	River Tyne	2	0.2	down 60%	98%
Daphne Crescent CSO Overflow on sewer network EA ID / permit NWL00417 · NPSWQD005830 Outlet location NZ4206548416 (OS grid reference) · View on Apple Maps WFD catchment Dalton Beck to North Sea (GB103025075970) 2024 spills / hours 4 / 1.3 Long-term average 2.3 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.2 hours spilling →	Trib of Dawdon Dene	2	0.2	down 50%	100%
Geneva Road CSO Overflow on sewer network EA ID / permit NWL00585 · 254/1908 Outlet location NZ3069012930 (OS grid reference) · View on Apple Maps WFD catchment Neasham Stell Catchment (trib of Tees) (GB103025072160) 2024 spills / hours 6 / 10 Long-term average 3.5 spills a year (monitored since 2024) Monitor below 90% Comms failure / issue · Resolved - Nov Investigation Env Act (SODRP) investigation ongoing, Operational investigation ongoing Improvement Operational improvement ongoing Volume & pollution Estimate from 0.2 hours spilling →	Cree Beck Tees Catchment	1	0.2	down 83%	75%
Wingate CSO No 1 Overflow on sewer network EA ID / permit NWL01535 · Permit applied for Outlet location NZ3784436372 (OS grid reference) · View on Apple Maps WFD catchment Skerne from Source to Carrs (GB103025076070) 2024 spills / hours 2 / 1.0 Long-term average 5.0 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement Operational improvement completed Volume & pollution Estimate from 0.2 hours spilling →	River Skerne	1	0.2	down 50%	100%
St Lukes Road CSO Overflow on sewer network EA ID / permit NWL01264 · 245/1372 Outlet location NZ3542657317 (OS grid reference) · View on Apple Maps WFD catchment WEAR (GB510302402900) 2024 spills / hours 5 / 1.4 Long-term average 2.8 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.2 hours spilling →	River Wear	1	0.2	down 80%	100%
Allotment Gardens CSO Overflow on sewer network EA ID / permit NWL00036 · EPRZB3892WU Outlet location NZ3962641209 (OS grid reference) · View on Apple Maps WFD catchment Castle Eden Burn from Source to North Sea (GB103025075930) 2024 spills / hours 1 / 0.3 Long-term average 1.8 spills a year (monitored since 2022) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 0.2 hours spilling →	Trib of the Castle Eden Burn	1	0.2	no change	100%
Cathedral Banks CSO Overflow on sewer network Company site name DU37 B Barclays Court Lane EA ID / permit NWL00259 · 245/E/0659 Outlet location NZ2759542214 (OS grid reference) · View on Apple Maps WFD catchment Wear from Croxdale Beck to Lumley Park Burn (GB103024077621) 2024 spills / hours 4 / 1.0 Long-term average 1.3 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.2 hours spilling →	Wear/Pelaw Wood Beck	2	0.2	down 50%	100%
Marton Avenue CSO Overflow on sewer network EA ID / permit NWL00358 · 25/04/1600 Outlet location NZ5174317156 (OS grid reference) · View on Apple Maps WFD catchment Marton West Beck Catchment (trib of Tidal Tees) (GB103025072210) 2024 spills / hours 5 / 9.8 Long-term average 1.6 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.2 hours spilling →	Ormesby Beck	1	0.2	down 80%	98%
CSO in Gunnergate Lane Overflow on sewer network EA ID / permit NWL00387 · 25/04/1666 Outlet location NZ5134015080 (OS grid reference) · View on Apple Maps WFD catchment Marton West Beck Catchment (trib of Tidal Tees) (GB103025072210) 2024 spills / hours 0 / 0.0 Long-term average 0.1 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.2 hours spilling →	Marton West Beck	1	0.2	up from 0	100%
High St CSO Overflow on sewer network EA ID / permit NWL00687 · 245/1155 Outlet location NZ3076044630 (OS grid reference) · View on Apple Maps WFD catchment Wear from Croxdale Beck to Lumley Park Burn (GB103024077621) 2024 spills / hours 2 / 5.0 Long-term average 5.2 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.2 hours spilling →	Wear Trib	2	0.2	no change	100%
King Oswy Drive CSO Overflow on sewer network EA ID / permit NWL00756 · 255/1117 Outlet location NZ5001235871 (OS grid reference) · View on Apple Maps WFD catchment Tees Coastal (GB650301500005) 2024 spills / hours 1 / 0.3 Long-term average 0.9 spills a year (monitored since 2013) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 0.2 hours spilling →	North Sea	1	0.2	no change	98%
Links Road CSO Overflow on sewer network EA ID / permit NWL00795 · EPRTP3325PT Outlet location NZ3361076757 (OS grid reference) · View on Apple Maps WFD catchment Tyne and Wear (GB650301500002) Bathing water Seaton Sluice 2024 spills / hours 1 / 0.0 Long-term average 7.4 spills a year (monitored since 2013) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 0.2 hours spilling →	Seaton Burn	2	0.2	up 100%	100%
Osman Terrace CSO Overflow on sewer network EA ID / permit NWL00985 · 245/1378 Outlet location NZ3249350763 (OS grid reference) · View on Apple Maps WFD catchment Lumley Park Burn from Source to Herrington Burn (GB103024077580) 2024 spills / hours 5 / 16 Long-term average 6.6 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.2 hours spilling →	Moors Burn	2	0.2	down 60%	100%
Rear 39 Cutlers Hall Road Overflow on sewer network EA ID / permit NWL01088 · 234/1133 Outlet location NZ0895152310 (OS grid reference) · View on Apple Maps WFD catchment Derwent from Burnhope Burn to River Tyne (GB103023074790) 2024 spills / hours 2 / 0.5 Long-term average 2.5 spills a year (monitored since 2013) Investigation Operational investigation ongoing Improvement Operational improvement ongoing Volume & pollution Estimate from 0.2 hours spilling →	Backstone Burn	3	0.2	up 50%	99%
Smithy Lane CSO Overflow on sewer network EA ID / permit NWL01215 · 235/1558 Outlet location NZ2597058230 (OS grid reference) · View on Apple Maps WFD catchment Team from Source to Tyne (GB103023075670) 2024 spills / hours 2 / 0.5 Long-term average 1.1 spills a year (monitored since 2017) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.2 hours spilling →	Tributary of River Team	2	0.2	no change	94%
Waldridge Road CSO Ch 13 Overflow on sewer network EA ID / permit NWL01443 · 245/1305 Outlet location NZ2528050380 (OS grid reference) · View on Apple Maps WFD catchment Cong Burn from Source to Twizell Burn (GB103024077560) 2024 spills / hours 4 / 1.0 Long-term average 2.4 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.2 hours spilling →	Cong Burn	2	0.2	down 50%	100%
Clavering Rd & Ruskin Rd Overflow on sewer network EA ID / permit NWL00294 · 234/1144 Outlet location NZ2006062130 (OS grid reference) · View on Apple Maps WFD catchment River Derwent (GB510302310200) 2024 spills / hours 15 / 2.9 Long-term average 10.8 spills a year (monitored since 2013) Monitor below 90% Comms failure / issue · Resolved - Feb Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement Operational improvement completed Volume & pollution Estimate from 0.2 hours spilling →	Derwent Mill Race	2	0.2	down 87%	88%
Consett Oap Hall CSO Overflow on sewer network EA ID / permit NWL00319 · EPRAB3596NY Outlet location NZ0894552307 (OS grid reference) · View on Apple Maps WFD catchment Derwent from Burnhope Burn to River Tyne (GB103023074790) 2024 spills / hours 2 / 0.5 Long-term average 3.9 spills a year (monitored since 2013) Investigation Operational investigation ongoing Improvement Operational improvement ongoing Volume & pollution Estimate from 0.2 hours spilling →	Backstone Burn	3	0.2	up 50%	99%
Durham Street CSO Overflow on sewer network EA ID / permit NWL00471 · 255/1155 Outlet location NZ4153049819 (OS grid reference) · View on Apple Maps WFD catchment Ice House Dene to North Sea (GB650301500002) Bathing water Seaham Hall Beach 2024 spills / hours 4 / 0.9 Long-term average 5.4 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.2 hours spilling →	Ice House Dean	2	0.2	down 50%	96%
Front Street CSO CH68 Overflow on sewer network EA ID / permit NWL00575 · 245/1315 Outlet location NZ2743851607&NZ2745651598 (OS grid reference) · View on Apple Maps WFD catchment Cong Burn from Twizell Burn to Wear (GB103024077600) 2024 spills / hours 0 / 0.0 Long-term average 2.7 spills a year (monitored since 2013) Monitor below 90% Comms failure / issue · Resolved - Jun Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.2 hours spilling →	Chester Burn	1	0.2	up from 0	82%
Horden STW Overflow on sewer network EA ID / permit NWL00705 · 255/1145 Outlet location NZ4577043310 (OS grid reference) · View on Apple Maps WFD catchment Tyne and Wear (GB650301500002) 2024 spills / hours 3 / 1.0 Long-term average 2.9 spills a year (monitored since 2015) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 0.2 hours spilling →	North Sea	1	0.2	down 67%	98%
Sherburn SSO Manhole No. 33 Overflow on sewer network EA ID / permit NWL01185 · 245/1297 Outlet location NZ3192041820 (OS grid reference) · View on Apple Maps WFD catchment Old Durham Beck from Source to Pittington Beck (GB103024077490) 2024 spills / hours 1 / 0.3 Long-term average 0.2 spills a year (monitored since 2013) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 0.2 hours spilling →	Sherburnhouse Beck	1	0.2	no change	100%
Teesside High School PS Storm discharge at pumping station EA ID / permit NWL01350 · 254/1431 Outlet location NZ4276714969 (OS grid reference) · View on Apple Maps WFD catchment Tees from Skerne to Tidal Limit (GB103025072595) 2024 spills / hours – / – Long-term average 5.5 spills a year (monitored since 2021) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 0.2 hours spilling →	River Tees	1	0.2		94%
Tollesby Manor SPS & CSO Storm discharge at pumping station EA ID / permit NWL01392 · 254/1894 Outlet location NZ5133915081 (OS grid reference) · View on Apple Maps WFD catchment Marton West Beck Catchment (trib of Tidal Tees) (GB103025072210) 2024 spills / hours 0 / 0.0 Long-term average 0.3 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.2 hours spilling →	Trib of Marton West Beck	1	0.2	up from 0	95%
West Street CSO Overflow on sewer network EA ID / permit NWL01494 · 243/0914 Outlet location NZ2794036440 (OS grid reference) · View on Apple Maps WFD catchment Croxdale Beck from Source to Wear (GB103024077410) 2024 spills / hours 0 / 0.0 Long-term average 1.6 spills a year (monitored since 2013) Monitor below 90% Comms failure / issue · Resolved - Jun Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.2 hours spilling →	Blagdon Beck Trib	1	0.2	up from 0	84%
Wincomblee B PS Storm discharge at pumping station EA ID / permit NWL01530 · 235/1757 Outlet location NZ2980564272 (OS grid reference) · View on Apple Maps WFD catchment TYNE (GB510302310200) 2024 spills / hours 1 / 3.3 Long-term average 8.4 spills a year (monitored since 2018) Investigation Env Act (SODRP) investigation ongoing, Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.2 hours spilling →	River Tyne Saline Estuary	1	0.2	no change	99%
Felton STW Inlet overflow at sewage works Sewage works Felton EA ID / permit NWL00543 · 223/0993 Outlet location NU1912800567&NU1915300559 (OS grid reference) · View on Apple Maps WFD catchment Coquet from Forest Burn to Tidal Limit (GB103022076693) 2024 spills / hours 72 / 29 Long-term average 39.0 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing, Operational investigation ongoing Improvement Operational improvement ongoing Volume & pollution Estimate from 0.2 hours spilling →	Coquet	7	0.2	down 90%	99%
Longbyre STW Inlet overflow at sewage works Sewage works Longbyre EA ID / permit NWL00807 · 232/1155 Outlet location NY6564066240 (OS grid reference) · View on Apple Maps WFD catchment Tipalt Burn from Source to South Tyne (GB103023075580) 2024 spills / hours 1 / 0.0 Long-term average 1.6 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.1 hours spilling →	Pow Charney Burn	1	0.1	no change	94%
Meadow View CSO Overflow on sewer network EA ID / permit NWL00865 · NPSWQD003443 Outlet location NY6861461700 (OS grid reference) · View on Apple Maps WFD catchment Park Burn from Source to South Tyne (GB103023075500) 2024 spills / hours 2 / 0.5 Long-term average 0.7 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement Operational improvement completed Volume & pollution Estimate from 0.1 hours spilling →	Park Burn	2	0.1	no change	97%
Mill Lane CSO Overflow on sewer network EA ID / permit NWL00888 · EPRTP3525PZ Outlet location NZ3187241798 (OS grid reference) · View on Apple Maps WFD catchment Old Durham Beck from Source to Pittington Beck (GB103024077490) 2024 spills / hours 4 / 27 Long-term average 27.2 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.1 hours spilling →	Sherburnhouse Beck	2	0.1	down 50%	100%
Owen Brannigan Drive CSO Overflow on sewer network EA ID / permit NWL00997 · 226/1260 Outlet location NZ2686273529 (OS grid reference) · View on Apple Maps WFD catchment Seaton Burn from Source to Tidal Limit (GB103022076190) 2024 spills / hours 5 / 9.5 Long-term average 3.3 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement Operational improvement completed Volume & pollution Estimate from 0.1 hours spilling →	Seaton Burn	2	0.1	down 60%	99%
Riversdale Road CSO Overflow on sewer network EA ID / permit NWL01112 · 235/1365 Outlet location NZ2466763084 (OS grid reference) · View on Apple Maps WFD catchment TYNE (GB510302310200) 2024 spills / hours 10 / 3.0 Long-term average 6.9 spills a year (monitored since 2019) Investigation Operational investigation completed Improvement Operational improvement completed Volume & pollution Estimate from 0.1 hours spilling →	River Tyne	2	0.1	down 80%	100%
Shibdon Road CSO Overflow on sewer network EA ID / permit NWL01187 · 234/1021 Outlet location NZ1983562379 (OS grid reference) · View on Apple Maps WFD catchment TYNE (GB510302310200) 2024 spills / hours 3 / 1.0 Long-term average 3.7 spills a year (monitored since 2013) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 0.1 hours spilling →	Derwent Estuary	1	0.1	down 67%	98%
Tower Street CSO Overflow on sewer network EA ID / permit NWL01399 · 25/04/1700 Outlet location NZ4473118661,NZ4649319169&NZ4651519191 (OS grid reference) · View on Apple Maps WFD catchment TEES (GB510302509900) 2024 spills / hours 1 / 0.1 Long-term average 0.3 spills a year (monitored since 2018) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.1 hours spilling →	River Tees	1	0.1	no change	100%
Whitburn Storm Sewage Overflow Overflow on sewer network EA ID / permit NWL01513 · 245/1106 Outlet location NZ4097061410 (OS grid reference) · View on Apple Maps WFD catchment Tyne and Wear (GB650301500002) Bathing water Seaburn - Sunderland 2024 spills / hours 3 / 0.5 Long-term average 2.3 spills a year (monitored since 2013) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 0.1 hours spilling →	North Sea	2	0.1	down 33%	100%
Blackhall Mill Pumping Station Overflow on sewer network EA ID / permit NWL00147 · 234/0918 Outlet location NZ1227956921 (OS grid reference) · View on Apple Maps WFD catchment Derwent from Burnhope Burn to River Tyne (GB103023074790) 2024 spills / hours 8 / 6.8 Long-term average 5.0 spills a year (monitored since 2013) Monitor below 90% Installation set-up/design issue · Resolved - Nov Investigation Env Act (SODRP) investigation ongoing, Operational investigation ongoing Improvement Operational improvement ongoing Volume & pollution Estimate from 0.1 hours spilling →	Tongue Burn (Derwent)	3	0.1	down 63%	88%
Ravensdowne Barracks SPS Storm discharge at pumping station EA ID / permit NWL01086 · 210/1251 Outlet location NU0035352507 (OS grid reference) · View on Apple Maps WFD catchment TWEED (GB510202110000) Bathing water Spittal 2024 spills / hours 0 / 0.0 Long-term average 0.1 spills a year (monitored since 2019) Investigation Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.1 hours spilling →	River Tweed	1	0.1	up from 0	100%
Fordley CSO Fern Drive Overflow on sewer network Company site name ANNITSFORD BRIDGE CSO EA ID / permit NWL00056 · 226/1261 Outlet location NZ2702273777 (OS grid reference) · View on Apple Maps WFD catchment Seaton Burn from Source to Tidal Limit (GB103022076190) 2024 spills / hours 1 / 0.8 Long-term average 0.5 spills a year (monitored since 2018) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.1 hours spilling →	Seaton Burn	1	0.1	no change	99%

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.