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
Castle Vale SPS Storm discharge at pumping station EA ID / permit NWL00254 · 210/1249 Outlet location NT9937053234 (OS grid reference) · View on Apple Maps WFD catchment River Tweed (GB510202110000) Bathing water Spittal 2024 spills / hours 3 / 0.7 Long-term average 1.0 spills a year (monitored since 2019) Investigation Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.9 hours spilling →	River Tweed	2	0.9	down 33%	100%
Farne Avenue CSO Overflow on sewer network EA ID / permit NWL00539 · 235/2004 Outlet location NZ2406869449 (OS grid reference) · View on Apple Maps WFD catchment Ouse Burn from Source to Tyne (GB103023075780) 2024 spills / hours 7 / 4.5 Long-term average 6.4 spills a year (monitored since 2013) Monitor below 90% Comms failure / issue · Resolved - Jul Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.9 hours spilling →	Ouseburn	5	0.9	down 29%	85%
Brenda Road/Park View CSO Overflow on sewer network Company site name OWTON MANOR LANE CSO EA ID / permit NWL00998 · 255/5014 Outlet location NZ5009029567 (OS grid reference) · View on Apple Maps WFD catchment North Sea (GB650301500005) Bathing water Seaton Carew Centre 2024 spills / hours 2 / 0.4 Long-term average 1.9 spills a year (monitored since 2013) Monitor below 90% Comms failure / issue · Resolved - Feb Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.9 hours spilling →	Stell	2	0.9	no change	86%
South East View CSO Overflow on sewer network EA ID / permit NWL01224 · 255/1214 Outlet location NZ4456341187 (OS grid reference) · View on Apple Maps WFD catchment Blackhills Gill to North Sea (GB650301500002) 2024 spills / hours 7 / 1.9 Long-term average 8.3 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.9 hours spilling →	Blackhills Gill	4	0.9	down 43%	100%
West Rainton CSO DU085 Overflow on sewer network EA ID / permit NWL01488 · 245/E/0507 Outlet location NZ3011646522 (OS grid reference) · View on Apple Maps WFD catchment Wear from Croxdale Beck to Lumley Park Burn (GB103024077621) 2024 spills / hours 20 / 30 Long-term average 27.1 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.9 hours spilling →	Wear	5	0.9	down 75%	100%
Victoria Road SPS Storm discharge at pumping station EA ID / permit NWL01429 · 25/03/1253 Outlet location NZ2906914156 (OS grid reference) · View on Apple Maps WFD catchment Skerne from Demons Beck to Tees (GB103025072596) 2024 spills / hours 1 / 1.0 Long-term average 6.7 spills a year (monitored since 2019) Investigation Env Act (SODRP) investigation ongoing, Operational investigation ongoing Improvement Operational improvement completed Volume & pollution Estimate from 0.9 hours spilling →	River Skerne	2	0.9	up 100%	100%
Caroline Street CSO Overflow on sewer network EA ID / permit NWL00250 · EPRAB3593AS Outlet location NZ2132828289 (OS grid reference) · View on Apple Maps WFD catchment Gaunless from Hummer Beck to Wear (GB103024072730) 2024 spills / hours 1 / 0.3 Long-term average 6.7 spills a year (monitored since 2014) Investigation Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.9 hours spilling →	River Gaunless	3	0.9	up 200%	98%
Cockfield Fell NO2 CSO Overflow on sewer network EA ID / permit NWL00304 · 242/1054 Outlet location NZ1332024630 (OS grid reference) · View on Apple Maps WFD catchment Gaunless from Source to Hummer Beck (GB103024072690) 2024 spills / hours 4 / 3.0 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 0.9 hours spilling →	The Black Burn via A Sw Sewer	5	0.9	up 25%	99%
Hunwick Lane CSO Overflow on sewer network EA ID / permit NWL00720 · 243/0994 Outlet location NZ1935035140 (OS grid reference) · View on Apple Maps WFD catchment Wear from Gaunless to Browney (GB103024077464) 2024 spills / hours 0 / 0.0 Long-term average 1.5 spills a year (monitored since 2013) Monitor below 90% Power failure / issue · Resolved - May Investigation Operational investigation ongoing Improvement Operational improvement completed Volume & pollution Estimate from 0.9 hours spilling →	Willington Burn Tributary	2	0.9	up from 0	90%
Main Street Spittal CSO Overflow on sewer network EA ID / permit NWL00840 · 210/1349 Outlet location NU0018151930 (OS grid reference) · View on Apple Maps WFD catchment TWEED (GB510202110000) Bathing water Spittal 2024 spills / hours 3 / 1.9 Long-term average 1.4 spills a year (monitored since 2013) Investigation Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.9 hours spilling →	North Sea	2	0.9	down 33%	100%
Chapel Street CSO Overflow on sewer network EA ID / permit NWL00267 · EPRJP3820PQ Outlet location NZ1946734630 (OS grid reference) · View on Apple Maps WFD catchment Wear from Gaunless to Browney (GB103024077464) 2024 spills / hours 3 / 1.3 Long-term average 4.8 spills a year (monitored since 2013) Monitor below 90% Comms failure / issue · Resolved - Jul Investigation Operational investigation completed Improvement Operational improvement completed Volume & pollution Estimate from 0.8 hours spilling →	Willington Burn	8	0.8	up 167%	70%
CSO Yarm Road DL18 Overflow on sewer network EA ID / permit NWL00408 · 25/03/1214 Outlet location NZ2912514232 (OS grid reference) · View on Apple Maps WFD catchment Skerne from Demons Beck to Tees (GB103025072596) 2024 spills / hours 0 / 0.0 Long-term average 1.4 spills a year (monitored since 2015) Investigation Env Act (SODRP) investigation ongoing, Operational investigation ongoing Improvement Operational improvement ongoing Volume & pollution Estimate from 0.8 hours spilling →	River Skerne	4	0.8	up from 0	93%
Dragon Lane CSO Overflow on sewer network EA ID / permit NWL00455 · 245/1136 Outlet location NZ3107842600 (OS grid reference) · View on Apple Maps WFD catchment Pittington Beck from Coalford to Old Durham Beck (GB103024077540) 2024 spills / hours 0 / 0.0 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 0.8 hours spilling →	Pittington Beck Trib	3	0.8	up from 0	96%
Heighington CSO Overflow on sewer network EA ID / permit NWL00665 · 25/03/1240 Outlet location NZ2519021910 (OS grid reference) · View on Apple Maps WFD catchment Skerne from Demons Beck to Tees (GB103025072596) 2024 spills / hours 6 / 3.8 Long-term average 7.9 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.8 hours spilling →	Dene Beck (Skerne Catchment)	2	0.8	down 67%	97%
Seaham CSO No 8 Overflow on sewer network EA ID / permit NWL01164 · 255/E/0620 Outlet location NZ4210848831 (OS grid reference) · View on Apple Maps WFD catchment Dalton Beck to North Sea (GB103025075970) Bathing water Seaham Hall Beach 2024 spills / hours 7 / 5.1 Long-term average 11.8 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.8 hours spilling →	Seaton Burn/Ice House Dene/Daw	5	0.8	down 29%	100%
A690 Slip Road CSO, SU27 Overflow on sewer network EA ID / permit NWL00016 · 245/1357 Outlet location NZ3343549097 (OS grid reference) · View on Apple Maps WFD catchment Lumley Park Burn from Source to Herrington Burn (GB103024077580) 2024 spills / hours 6 / 2.8 Long-term average 12.0 spills a year (monitored since 2013) Monitor below 90% Power failure / issue · Resolved - Sep Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.8 hours spilling →	Rainton Burn	1	0.8	down 83%	79%
Cathedral Banks CSO Overflow on sewer network EA ID / permit NWL00258 · 245/1336 Outlet location NZ2725242302 (OS grid reference) · View on Apple Maps WFD catchment Wear from Croxdale Beck to Lumley Park Burn (GB103024077621) 2024 spills / hours 3 / 1.0 Long-term average 5.6 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.8 hours spilling →	River Wear	6	0.8	up 100%	100%
Sadberge Sewage Pumping Station Storm discharge at pumping station EA ID / permit NWL01136 · 25/04/1749 Outlet location NZ3423015970 (OS grid reference) · View on Apple Maps WFD catchment Neasham Stell Catchment (trib of Tees) (GB103025072160) 2024 spills / hours 2 / 1.3 Long-term average 4.1 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.8 hours spilling →	Bumper Ha\Ll Beck	9	0.8	up 350%	96%
Seghill CSO Overflow on sewer network EA ID / permit NWL01177 · 226/F/0419 Outlet location NZ2836774535 (OS grid reference) · View on Apple Maps WFD catchment Seaton Burn from Source to Tidal Limit (GB103022076190) 2024 spills / hours 49 / 29 Long-term average 34.6 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement Operational improvement completed Volume & pollution Estimate from 0.8 hours spilling →	Seaton Burn	6	0.8	down 88%	93%
Sherburn SSO Manhole No 32 Overflow on sewer network EA ID / permit NWL01184 · 245/E/0511 Outlet location NZ3376042870 (OS grid reference) · View on Apple Maps WFD catchment Pittington Beck from Coalford to Old Durham Beck (GB103024077540) 2024 spills / hours 3 / 1.8 Long-term average 4.7 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.8 hours spilling →	Coalford Beck, Tributary of	7	0.8	up 133%	98%
Dunstan Sewage Treatment Works Inlet overflow at sewage works Sewage works Dunstan EA ID / permit NWL00464 · 221/0912 Outlet location NU2511019920 (OS grid reference) · View on Apple Maps WFD catchment Northumberland South (GB650301500001) 2024 spills / hours 1 / 0.0 Long-term average 4.0 spills a year (monitored since 2021) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 0.8 hours spilling →	Craster Burn	4	0.8	up 300%	100%
Durham Road CSO Overflow on sewer network EA ID / permit NWL00468 · 243/E/0569 Outlet location NZ2839533383 (OS grid reference) · View on Apple Maps WFD catchment Team from Source to Tyne (GB103023075670) 2024 spills / hours 7 / 2.5 Long-term average 10.3 spills a year (monitored since 2013) Monitor below 90% Sensor failure / issue · Resolved - Feb Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.8 hours spilling →	Unnamed Trib of Tursdale Beck	12	0.8	up 71%	88%
Park Road & Green Lane CSO Overflow on sewer network EA ID / permit NWL01010 · 225/G/0361 Outlet location NZ2708086616 (OS grid reference) · View on Apple Maps WFD catchment Wansbeck from Bothal Burn to North Sea (GB103022077062) 2024 spills / hours 6 / 5.0 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 0.8 hours spilling →	Wansbeck, Tributary of	5	0.8	down 17%	100%
Vinovium SSO No A32RIVER Walk Wv 12 Overflow on sewer network EA ID / permit NWL01436 · 242/1062 Outlet location NZ1858026500 (OS grid reference) · View on Apple Maps WFD catchment Gaunless from Source to Hummer Beck (GB103024072690) 2024 spills / hours 1 / 1.0 Long-term average 4.3 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement Operational improvement ongoing Volume & pollution Estimate from 0.8 hours spilling →	Gaunless	3	0.8	up 200%	100%
Lanchester Avenue CSO Overflow on sewer network EA ID / permit NWL00772 · 235/1956 Outlet location NZ2871059350 (OS grid reference) · View on Apple Maps WFD catchment Don from Source to Tidal Limit (GB103023075690) 2024 spills / hours 4 / 2.0 Long-term average 9.6 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.7 hours spilling →	River Don	5	0.7	up 25%	98%
Waterhouse CSO Overflow on sewer network EA ID / permit NWL01465 · EPRAB3691VY Outlet location NZ2268041971 (OS grid reference) · View on Apple Maps WFD catchment Deerness from Hedleyhope Burn to Browney (GB103024077280) 2024 spills / hours 1 / 0.3 Long-term average 4.2 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.7 hours spilling →	River Burn	3	0.7	up 200%	95%
Mayfair Road CSO Overflow on sewer network EA ID / permit NWL00859 · 253/1274 Outlet location NZ2956017800 (OS grid reference) · View on Apple Maps WFD catchment Skerne from Demons Beck to Tees (GB103025072596) 2024 spills / hours 1 / 0.3 Long-term average 1.9 spills a year (monitored since 2013) Investigation Operational investigation ongoing Improvement Operational improvement ongoing Volume & pollution Estimate from 0.7 hours spilling →	River Tees	3	0.7	up 200%	93%
Rear 3 Ernest Street CSO Overflow on sewer network EA ID / permit NWL01087 · EPRAB3390WN Outlet location NZ3543562359 (OS grid reference) · View on Apple Maps WFD catchment Don from Source to Tidal Limit (GB103023075690) 2024 spills / hours 7 / 4.5 Long-term average 9.3 spills a year (monitored since 2015) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement Operational improvement completed Volume & pollution Estimate from 0.7 hours spilling →	River Don	3	0.7	down 57%	95%
Stoney Lane CSO Overflow on sewer network EA ID / permit NWL01314 · 235/1928 Outlet location NZ3016555728 (OS grid reference) · View on Apple Maps WFD catchment Oxclose Burn to River Wear (GB510302402900) 2024 spills / hours 5 / 2.0 Long-term average 6.5 spills a year (monitored since 2018) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.7 hours spilling →	Oxclose Burn	5	0.7	no change	93%
Dudley Middle School CSO Overflow on sewer network EA ID / permit NWL00458 · 226/1259 Outlet location NZ2658373756 (OS grid reference) · View on Apple Maps WFD catchment Seaton Burn from Source to Tidal Limit (GB103022076190) 2024 spills / hours 10 / 16 Long-term average 7.7 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.7 hours spilling →	Sandy'S Letch,Trib Seaton Burn	2	0.7	down 80%	91%
Vinovium CSO No A22 Overflow on sewer network EA ID / permit NWL01432 · 242/C/0380 Outlet location NZ2182128532 (OS grid reference) · View on Apple Maps WFD catchment Gaunless from Hummer Beck to Wear (GB103024072730) 2024 spills / hours 0 / 0.0 Long-term average 1.4 spills a year (monitored since 2018) Monitor below 90% Comms failure / issue · Resolved - Feb Investigation Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.7 hours spilling →	River Gaunless	1	0.7	up from 0	79%
CSO WV79 Rough Lea Lane Overflow on sewer network EA ID / permit NWL00406 · 243/0909 Outlet location NZ1936133626 (OS grid reference) · View on Apple Maps WFD catchment Wear from Gaunless to Browney (GB103024077464) 2024 spills / hours 10 / 6.5 Long-term average 11.4 spills a year (monitored since 2017) Investigation Operational investigation ongoing Improvement Operational improvement completed Volume & pollution Estimate from 0.6 hours spilling →	Unnamed Beck Trib Rvr Wear	5	0.6	down 50%	100%
Horncliffe North STW Inlet overflow at sewage works Sewage works Horncliffe North EA ID / permit NWL00706 · 210/0887 Outlet location NT9267949961 (OS grid reference) · View on Apple Maps WFD catchment River Tweed (GB510202110000) 2024 spills / hours 2 / 0.5 Long-term average 4.5 spills a year (monitored since 2013) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 0.6 hours spilling →	River Tweed	4	0.6	up 100%	100%
Sixth St SSO Overflow on sewer network EA ID / permit NWL01205 · 244/0873 Outlet location NZ1192050530 (OS grid reference) · View on Apple Maps WFD catchment Smallhope Burn from Source to Browney, Stocke (GB103024077330) 2024 spills / hours 2 / 1.3 Long-term average 7.1 spills a year (monitored since 2013) Monitor below 90% Comms failure / issue · Resolved - Feb Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.6 hours spilling →	Stockerley Burn, Tributary of	4	0.6	up 100%	88%
Valley Terrace CSO Overflow on sewer network EA ID / permit NWL01424 · 241/1122 Outlet location NZ1667932599 (OS grid reference) · View on Apple Maps WFD catchment Beechburn Beck (Trib of Wear) (GB103024077390) 2024 spills / hours 6 / 30 Long-term average 16.4 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement Operational improvement ongoing Volume & pollution Estimate from 0.6 hours spilling →	Beechburn Beck	1	0.6	down 83%	100%
Yarm Road CSO (Y6) Overflow on sewer network EA ID / permit NWL01565 · EPRMB3892VE Outlet location NZ2912514232 (OS grid reference) · View on Apple Maps WFD catchment Skerne from Demons Beck to Tees (GB103025072596) 2024 spills / hours 0 / 0.0 Long-term average 0.8 spills a year (monitored since 2013) Monitor below 90% Comms failure / issue · Resolved - Oct Investigation Env Act (SODRP) investigation ongoing, Operational investigation ongoing Improvement Operational improvement ongoing Volume & pollution Estimate from 0.6 hours spilling →	River Skerne	1	0.6	up from 0	82%
Linton Pumping Station Storm discharge at pumping station EA ID / permit NWL00796 · 224/0958 Outlet location NZ2644991137 (OS grid reference) · View on Apple Maps WFD catchment Lyne from Source to Tidal Limit (GB103022076820) 2024 spills / hours 1 / 2.2 Long-term average 2.0 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.6 hours spilling →	Potland Burn	2	0.6	up 100%	100%
Benton Way Outfall No 2 CSO Overflow on sewer network EA ID / permit NWL00121 · 235/1626 Outlet location NZ3013065600 (OS grid reference) · View on Apple Maps WFD catchment TYNE (GB510302310200) 2024 spills / hours 3 / 0.8 Long-term average 4.7 spills a year (monitored since 2013) Investigation Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.6 hours spilling →	Tyne Estuary	2	0.6	down 33%	98%
Boldon Colliery South (N0'7) CSO Overflow on sewer network EA ID / permit NWL00169 · EPRCB3096RW Outlet location NZ3543562359 (OS grid reference) · View on Apple Maps WFD catchment Don from Source to Tidal Limit (GB103023075690) 2024 spills / hours 6 / 5.3 Long-term average 4.0 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.6 hours spilling →	River Don	2	0.6	down 67%	100%
Gomer Tce SSO Overflow on sewer network EA ID / permit NWL00599 · 241/1056 Outlet location NZ2065030350 (OS grid reference) · View on Apple Maps WFD catchment Wear from Beechburn Beck to Gaunless (GB103024077463) 2024 spills / hours 10 / 14 Long-term average 8.3 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.6 hours spilling →	Wear	1	0.6	down 90%	97%
Northside Place CSO Overflow on sewer network EA ID / permit NWL00967 · 226/1264 Outlet location NZ3112074340 (OS grid reference) · View on Apple Maps WFD catchment Seaton Burn from Source to Tidal Limit (GB103022076190) 2024 spills / hours 2 / 2.0 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 0.6 hours spilling →	Seaton Burn	2	0.6	no change	97%
Sea Road CSO Overflow on sewer network EA ID / permit NWL01159 · EPRPP3227GJ Outlet location NU0018151930 (OS grid reference) · View on Apple Maps WFD catchment TWEED (GB510202110000) Bathing water Spittal 2024 spills / hours 2 / 1.0 Long-term average 0.9 spills a year (monitored since 2013) Investigation Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.6 hours spilling →	Tweed Estuary	2	0.6	no change	100%
Easson Road/Dodds Street CSO Overflow on sewer network EA ID / permit NWL00475 · EPRBB3695WG Outlet location NZ2918014935 (OS grid reference) · View on Apple Maps WFD catchment Skerne from Demons Beck to Tees (GB103025072596) 2024 spills / hours 1 / 0.3 Long-term average 1.6 spills a year (monitored since 2013) Investigation Operational investigation ongoing Improvement Operational improvement ongoing Volume & pollution Estimate from 0.6 hours spilling →	River Skerne	3	0.6	up 200%	99%
20 Pearson Street CSO Se 009 Overflow on sewer network EA ID / permit NWL00002 · 243/1000 Outlet location NZ2837033580 (OS grid reference) · View on Apple Maps WFD catchment Croxdale Beck from Source to Wear (GB103024077410) 2024 spills / hours 3 / 1.5 Long-term average 2.0 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.6 hours spilling →	East Howle Beck, Tributary of	4	0.6	up 33%	100%
Barwick Street CSO Overflow on sewer network EA ID / permit NWL00093 · 255/1126 Outlet location NZ4001646498 (OS grid reference) · View on Apple Maps WFD catchment Dalton Beck to North Sea (GB103025075970) 2024 spills / hours 10 / 5.0 Long-term average 9.6 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement Operational improvement completed Volume & pollution Estimate from 0.6 hours spilling →	Murton Dene	6	0.6	down 40%	96%
Caldbeck Avenue/Pottery Bank CSO Overflow on sewer network EA ID / permit NWL00236 · 235/1325 Outlet location NZ2890162949 (OS grid reference) · View on Apple Maps WFD catchment TYNE (GB510302310200) 2024 spills / hours 9 / 3.0 Long-term average 5.0 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 0.6 hours spilling →	Tyne Estuary	4	0.6	down 56%	100%
Cornhill SPS Storm discharge at pumping station EA ID / permit NWL00327 · 210/0984 Outlet location NT8616539354 (OS grid reference) · View on Apple Maps WFD catchment Willow Burn Catchment (Trib of Tweed) (GB102021073010) 2024 spills / hours 0 / 0.0 Long-term average 1.5 spills a year (monitored since 2020) Monitor below 90% Installation set-up/design issue · Resolved - Jun Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.6 hours spilling →	Trib of the River Tweed	1	0.6	up from 0	38%
Dairy Lane CSO SU024 Overflow on sewer network EA ID / permit NWL00411 · 245/A/0520 Outlet location NZ3304749837 (OS grid reference) · View on Apple Maps WFD catchment Lumley Park Burn from Source to Herrington Burn (GB103024077580) 2024 spills / hours 6 / 9.0 Long-term average 6.3 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.6 hours spilling →	Rainton Burn	1	0.6	down 83%	100%
Jubilee Place CSO Overflow on sewer network EA ID / permit NWL00741 · 245/1299 Outlet location NZ2859040730 (OS grid reference) · View on Apple Maps WFD catchment Wear from Croxdale Beck to Lumley Park Burn (GB103024077621) 2024 spills / hours 1 / 0.3 Long-term average 2.6 spills a year (monitored since 2013) Monitor below 90% Comms failure / issue · Resolved - Nov Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 0.6 hours spilling →	Wear	2	0.6	up 100%	87%
Rear Forster St/Easson Road CSO Overflow on sewer network EA ID / permit NWL01090 · EPRBB3699VN Outlet location NZ2918014935 (OS grid reference) · View on Apple Maps WFD catchment Skerne from Demons Beck to Tees (GB103025072596) 2024 spills / hours 1 / 0.3 Long-term average 1.8 spills a year (monitored since 2013) Monitor below 90% Comms failure / issue · Resolved - Aug Investigation Operational investigation ongoing Improvement Operational improvement ongoing Volume & pollution Estimate from 0.6 hours spilling →	River Skerne	2	0.6	up 100%	89%

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.