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
Eden Walk CSO Overflow on sewer network EA ID / permit NWL00496 · 235/1969 Outlet location NZ3343663192 (OS grid reference) · View on Apple Maps WFD catchment Don from Source to Tidal Limit (GB103023075690) 2024 spills / hours 34 / 50 Long-term average 28.4 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 29 hours spilling →	River Don	26	29	down 24%	90%
Railway Line CSO Overflow on sewer network EA ID / permit NWL01078 · 243/1014 Outlet location NZ3408536027 (OS grid reference) · View on Apple Maps WFD catchment Croxdale Beck from Source to Wear (GB103024077410) 2024 spills / hours 22 / 44 Long-term average 34.1 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 29 hours spilling →	Coxhoe Beck	23	29	up 5%	88%
Stamfordham Road SPS Storm discharge at pumping station EA ID / permit NWL01277 · 235/1394 Outlet location NZ1866768300 (OS grid reference) · View on Apple Maps WFD catchment Ouse Burn from Source to Tyne (GB103023075780) 2024 spills / hours 10 / 58 Long-term average 7.8 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 29 hours spilling →	Tributary of Ouse Burn	4	29	down 60%	100%
Cree Beck CSO Overflow on sewer network EA ID / permit NWL00345 · NPSWQD005054 Outlet location NZ3065712805 (OS grid reference) · View on Apple Maps WFD catchment Neasham Stell Catchment (trib of Tees) (GB103025072160) 2024 spills / hours 4 / 9.0 Long-term average 3.4 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing, Operational investigation ongoing Improvement Operational improvement ongoing Volume & pollution Estimate from 29 hours spilling →	Cree Beck	6	29	up 50%	91%
Mount Pleasant CSO DER41 Overflow on sewer network EA ID / permit NWL00911 · 244/1020 Outlet location NZ1639647567 (OS grid reference) · View on Apple Maps WFD catchment Smallhope Burn from Source to Browney, Stocke (GB103024077330) 2024 spills / hours 27 / 48 Long-term average 25.8 spills a year (monitored since 2013) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 29 hours spilling →	Smallhope Burn	29	29	up 7%	100%
Cornfield Road Pumping Station Storm discharge at pumping station EA ID / permit NWL00325 · 254/1805 Outlet location NZ4475617659 (OS grid reference) · View on Apple Maps WFD catchment Tees from Skerne to Tidal Limit (GB103025072595) 2024 spills / hours 4 / 21 Long-term average 2.7 spills a year (monitored since 2013) Investigation Operational investigation ongoing Improvement Operational improvement ongoing Volume & pollution Estimate from 29 hours spilling →	Tees Estuary	6	29	up 50%	100%
Peth Head PS Storm discharge at pumping station EA ID / permit NWL01030 · 233/0993 Outlet location NY9433864182 (OS grid reference) · View on Apple Maps WFD catchment Tyne from Watersmeet to Tidal Limit (GB103023075801) 2024 spills / hours 35 / 66 Long-term average 42.5 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 29 hours spilling →	Tyne	22	29	down 37%	100%
Consett Academy South CSO DER090 Overflow on sewer network EA ID / permit NWL00315 · 234/1154 Outlet location NZ0844449648 (OS grid reference) · View on Apple Maps WFD catchment Derwent from Burnhope Burn to River Tyne (GB103023074790) 2024 spills / hours 39 / 60 Long-term average 31.4 spills a year (monitored since 2013) Investigation Operational investigation ongoing Improvement Operational improvement ongoing Volume & pollution Estimate from 29 hours spilling →	Unnamed Trib of Dene Burn	26	29	down 33%	100%
Albany Road/Saltmeadows Road CSO Overflow on sewer network EA ID / permit NWL00029 · 235/1659 Outlet location NZ2669063657 (OS grid reference) · View on Apple Maps WFD catchment TYNE (GB510302310200) 2024 spills / hours 32 / 35 Long-term average 27.9 spills a year (monitored since 2013) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 28 hours spilling →	Tyne Saline Estuary	25	28	down 22%	100%
Morpeth STW Inlet overflow at sewage works Sewage works Morpeth EA ID / permit NWL00908 · 225/1036 Outlet location NZ2086686427 (OS grid reference) · View on Apple Maps WFD catchment Wansbeck from Font to Bothal Burn (GB103022077061) 2024 spills / hours 0 / 0.0 Long-term average 5.7 spills a year (monitored since 2020) 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 28 hours spilling →	River Wansbeck	15	28	up from 0	38%
Plawsworth CSO MH1 Overflow on sewer network EA ID / permit NWL01039 · 245/E/0213 Outlet location NZ2646447467 (OS grid reference) · View on Apple Maps WFD catchment Blackdene Burn to confluence with Wear (GB103024077622) 2024 spills / hours 19 / 24 Long-term average 37.9 spills a year (monitored since 2013) High-spill reason (company) Not asset maintenance - Hydraulic capacity Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 28 hours spilling →	Black Dene Burn	35	28	up 84%	100%
Station Road/Swan Hunters CSO Overflow on sewer network EA ID / permit NWL01296 · 235/1597 Outlet location NZ3033665764 (OS grid reference) · View on Apple Maps WFD catchment River Tyne (GB510302310200) 2024 spills / hours 42 / 70 Long-term average 41.5 spills a year (monitored since 2022) Monitor below 90% Sensor failure / issue · Resolved - Sep Investigation Env Act (SODRP) investigation ongoing, Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 28 hours spilling →	Tyne Estuary	23	28	down 45%	55%
Grove Road CSO M009 Overflow on sewer network EA ID / permit NWL00628 · 254/1851 Outlet location NZ5079319593 (OS grid reference) · View on Apple Maps WFD catchment Marton West Beck Catchment (trib of Tidal Tees) (GB103025072210) 2024 spills / hours 18 / 34 Long-term average 17.6 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement Operational improvement completed Volume & pollution Estimate from 28 hours spilling →	Ormesby Beck	14	28	down 22%	100%
New Hall Farm CSO Overflow on sewer network EA ID / permit NWL00931 · 223/0922 Outlet location NU1319300547 (OS grid reference) · View on Apple Maps WFD catchment Coquet from Forest Burn to Tidal Limit (GB103022076693) 2024 spills / hours 0 / 0.0 Long-term average 44.0 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing, Operational investigation ongoing Improvement Operational improvement ongoing Volume & pollution Estimate from 28 hours spilling →	Unnamed Trib of River Coquet	22	28	up from 0	90%
Quebec Pumping Station Storm discharge at pumping station EA ID / permit NWL01070 · 244/A/0456 Outlet location NZ1828744481 (OS grid reference) · View on Apple Maps WFD catchment Browney from Smallhope Burn Deerness confl (GB103024077551) 2024 spills / hours 45 / 288 Long-term average 36.0 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing, Operational investigation ongoing Improvement Operational improvement ongoing Volume & pollution Estimate from 28 hours spilling →	Trib of Hamsteels Beck	18	28	down 60%	100%
Jubilee Road CSO Overflow on sewer network EA ID / permit NWL00742 · 253/1109 Outlet location NZ2381625646 (OS grid reference) · View on Apple Maps WFD catchment Woodham Burn from Source to Rushyford beck (GB103025072400) 2024 spills / hours 18 / 29 Long-term average 17.0 spills a year (monitored since 2018) Monitor below 90% Comms failure / issue · Resolved - Apr Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement Operational improvement completed Volume & pollution Estimate from 28 hours spilling →	Trib of River Skerne	15	28	down 17%	66%
Leamside CSO Overflow on sewer network EA ID / permit NWL00785 · 245/1295 Outlet location NZ2990046700 (OS grid reference) · View on Apple Maps WFD catchment Wear from Croxdale Beck to Lumley Park Burn (GB103024077621) 2024 spills / hours 1 / 4.5 Long-term average 4.7 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 28 hours spilling →	Wear	2	28	up 100%	99%
Killingworth Wagonway CSO Overflow on sewer network EA ID / permit NWL00752 · 235/1842 Outlet location NZ3042767058 (OS grid reference) · View on Apple Maps WFD catchment Wallsend Burn (Trib of Tyne) (GB103023075760) 2024 spills / hours 33 / 83 Long-term average 26.4 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 27 hours spilling →	Wallsend Burn	20	27	down 39%	99%
Haugh Lane CSO Overflow on sewer network EA ID / permit NWL00654 · 233/1224 Outlet location NZ1711464192 (OS grid reference) · View on Apple Maps WFD catchment Culverted watercourse to River Tyne (GB510302310200) 2024 spills / hours 13 / 52 Long-term average 7.3 spills a year (monitored since 2022) Monitor below 90% Comms failure / issue · Resolved - May Investigation Env Act (SODRP) investigation ongoing, Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 27 hours spilling →	Trib River Tyne	5	27	down 62%	63%
Evenwood Lane CSO Overflow on sewer network EA ID / permit NWL00531 · NPSWQD006151 Outlet location NZ1601924497 (OS grid reference) · View on Apple Maps WFD catchment Gaunless from Source to Hummer Beck (GB103024072690) 2024 spills / hours 26 / 34 Long-term average 20.4 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing, Operational investigation ongoing Improvement Operational improvement ongoing Volume & pollution Estimate from 27 hours spilling →	Crook Beck	20	27	down 23%	100%
Southfields CSO Overflow on sewer network EA ID / permit NWL01249 · 245/1280 Outlet location NZ2548652509 (OS grid reference) · View on Apple Maps WFD catchment Cong Burn from Twizell Burn to Wear (GB103024077600) 2024 spills / hours 13 / 20 Long-term average 12.3 spills a year (monitored since 2014) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 27 hours spilling →	Chester Burn, Tributary of	12	27	down 8%	100%
Stainsby Road CSO Overflow on sewer network EA ID / permit NWL01273 · 254/1816 Outlet location NZ4723017880 (OS grid reference) · View on Apple Maps WFD catchment TEES (GB510302509900) 2024 spills / hours 9 / 41 Long-term average 7.2 spills a year (monitored since 2013) Monitor below 90% Comms failure / issue · Resolved - Sep Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 26 hours spilling →	Old River Tees	7	26	down 22%	74%
Huntshield Ford CSO Overflow on sewer network EA ID / permit NWL00719 · 241/1157 Outlet location NY8886738132 (OS grid reference) · View on Apple Maps WFD catchment Wear from Wearhead to Middlehope Burn, Iresho (GB103024077440) 2024 spills / hours 39 / 107 Long-term average 27.7 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 26 hours spilling →	River Wear	13	26	down 67%	88%
Skinningrove Sewage Pumping Station Storm discharge at pumping station Company site name SKINNINGROVE SEWAGE PUMPING STATION 2 EA ID / permit NWL01207 · 25/06/1033 Outlet location NZ7132020110 (OS grid reference) · View on Apple Maps WFD catchment Kilton Beck from Middle Gill Beck to North Sea (GB103025071950) 2024 spills / hours 7 / 39 Long-term average 23.2 spills a year (monitored since 2021) Investigation Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 26 hours spilling →	North Sea	6	26	down 14%	100%
West Cornforth SPS Storm discharge at pumping station EA ID / permit NWL01481 · 243/0979 Outlet location NZ3071934663 (OS grid reference) · View on Apple Maps WFD catchment Croxdale Beck from Source to Wear (GB103024077410) 2024 spills / hours 20 / 41 Long-term average 15.7 spills a year (monitored since 2017) Monitor below 90% Telemetry or data archiving failure / issue · Resolved - Dec Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement Operational improvement completed Volume & pollution Estimate from 26 hours spilling →	Coxhoe Beck	8	26	down 60%	82%
Demesnes Mill CSO Overflow on sewer network EA ID / permit NWL00428 · 252/1124 Outlet location NZ0529815894 (OS grid reference) · View on Apple Maps WFD catchment Tees from Percy Beck to River Greta (GB103025072512) 2024 spills / hours 33 / 56 Long-term average 29.6 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 26 hours spilling →	River Tees	20	26	down 39%	98%
East End CSO (Se 026) Overflow on sewer network EA ID / permit NWL00478 · 253/1264 Outlet location NZ3616929104 (OS grid reference) · View on Apple Maps WFD catchment Waskerley Beck from Source to Wear (GB103024077520) 2024 spills / hours 30 / 38 Long-term average 31.6 spills a year (monitored since 2018) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 26 hours spilling →	Tributary of Redcar Beck	26	26	down 13%	100%
Willow Bridge CSO Overflow on sewer network EA ID / permit NWL01529 · 226/1239 Outlet location NZ2568683607 (OS grid reference) · View on Apple Maps WFD catchment Sleek Burn / Hepscott Burn Source to Tidal Limit (GB103022076230) 2024 spills / hours 36 / 109 Long-term average 29.8 spills a year (monitored since 2014) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 26 hours spilling →	The Sleek Burn	16	26	down 56%	99%
New Quay CSO NC058 Overflow on sewer network EA ID / permit NWL00935 · 235/1903 Outlet location NZ3566367900 (OS grid reference) · View on Apple Maps WFD catchment TYNE (GB510302310200) 2024 spills / hours 33 / 155 Long-term average 24.5 spills a year (monitored since 2013) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 26 hours spilling →	Tyne Estuary	14	26	down 58%	100%
Wellfield SPS Storm discharge at pumping station EA ID / permit NWL01473 · 255/1108 Outlet location NZ4045938485 (OS grid reference) · View on Apple Maps WFD catchment Castle Eden Burn from Source to North Sea (GB103025075930) 2024 spills / hours 18 / 62 Long-term average 16.0 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 26 hours spilling →	Castle Eden Burn Trib	14	26	down 22%	100%
Slaggyford SPS Storm discharge at pumping station EA ID / permit NWL01209 · 232/0992 Outlet location NY6795952323 (OS grid reference) · View on Apple Maps WFD catchment South Tyne from Black Burn to Tipalt Burn (GB103023075531) 2024 spills / hours 7 / 30 Long-term average 10.2 spills a year (monitored since 2020) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 25 hours spilling →	Trib of River South Tyne	4	25	down 43%	100%
The Swirle CSO Overflow on sewer network EA ID / permit NWL01377 · 235/1918 Outlet location NZ2579864071 (OS grid reference) · View on Apple Maps WFD catchment TYNE (GB510302310200) 2024 spills / hours 61 / 97 Long-term average 46.5 spills a year (monitored since 2018) Investigation Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 25 hours spilling →	Tyne Estuary	19	25	down 69%	100%
Park Hill CSO Overflow on sewer network EA ID / permit NWL01008 · 243/1013 Outlet location NZ3140036250 (OS grid reference) · View on Apple Maps WFD catchment Croxdale Beck from Source to Wear (GB103024077410) 2024 spills / hours 24 / 53 Long-term average 18.9 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement Operational improvement completed Volume & pollution Estimate from 25 hours spilling →	Coxhoe Beck	16	25	down 33%	98%
Spring Way CSO ST021 Overflow on sewer network EA ID / permit NWL01254 · 254/1827 Outlet location NZ4303017882 (OS grid reference) · View on Apple Maps WFD catchment Lustrum Beck Catchment (trib of Tees) (GB103025072550) 2024 spills / hours 32 / 33 Long-term average 27.7 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 25 hours spilling →	Hartburn Beck	22	25	down 31%	99%
Haggerston Castle STW Inlet overflow at sewage works Sewage works Haggerston Castle EA ID / permit NWL00636 · 210/A/0849 Outlet location NU0523743557 (OS grid reference) · View on Apple Maps WFD catchment South Low from Haggerston Bridge to N Sea (GB103021073222) 2024 spills / hours 23 / 181 Long-term average 18.7 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 25 hours spilling →	South Low	10	25	down 57%	100%
Station Street CSO Overflow on sewer network EA ID / permit NWL01298 · 254/1277 Outlet location NZ4496718363 (OS grid reference) · View on Apple Maps WFD catchment Tees from Skerne to Tidal Limit (GB103025072595) 2024 spills / hours 21 / 8.0 Long-term average 25.4 spills a year (monitored since 2013) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 25 hours spilling →	Tees Estuary	25	25	up 19%	97%
Wark Sewage Treatment Works Storm discharge at pumping station EA ID / permit NWL01453 · 210/1312 Outlet location NT8275038650 (OS grid reference) · View on Apple Maps WFD catchment River Tweed (GB510202110000) 2024 spills / hours 31 / 108 Long-term average 22.2 spills a year (monitored since 2013) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 25 hours spilling →	The Goat	24	25	down 23%	100%
Cow Plantation CSO Overflow on sewer network EA ID / permit NWL00335 · 243/0973 Outlet location NZ2558834626 (OS grid reference) · View on Apple Maps WFD catchment Valley Burn from Source to Wear (GB103024077350) 2024 spills / hours 16 / 18 Long-term average 15.2 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement Operational improvement completed Volume & pollution Estimate from 25 hours spilling →	Valley Burn, River Wear	14	25	down 13%	100%
Quarry Plantation CSO Overflow on sewer network EA ID / permit NWL01066 · EPRNB3990VN Outlet location NZ4286715217 (OS grid reference) · View on Apple Maps WFD catchment Tees from Skerne to Tidal Limit (GB103025072595) 2024 spills / hours 18 / 28 Long-term average 20.3 spills a year (monitored since 2020) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 25 hours spilling →	River Tees	10	25	down 44%	100%
Alnwick Castle CSO A011 Overflow on sewer network EA ID / permit NWL00040 · 222/0857 Outlet location NU1885113533 (OS grid reference) · View on Apple Maps WFD catchment Aln from Edlingham Burn to Tidal Limit (GB103022076350) 2024 spills / hours 40 / 59 Long-term average 53.9 spills a year (monitored since 2013) High-spill reason (company) Not asset maintenance - Hydraulic capacity Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 25 hours spilling →	Bow Burn	33	25	down 18%	100%
New Marske Methodist Church Overflow on sewer network EA ID / permit NWL00933 · 25/06/1018 Outlet location NZ6296422768 (OS grid reference) · View on Apple Maps WFD catchment Tees Coastal (GB650301500005) Bathing water Marske Sands 2024 spills / hours 28 / 64 Long-term average 17.2 spills a year (monitored since 2013) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 25 hours spilling →	North Sea	19	25	down 32%	100%
Tanfield Comprehensive School CSO Overflow on sewer network EA ID / permit NWL01340 · 235/1716 Outlet location NZ1918053780 (OS grid reference) · View on Apple Maps WFD catchment Team from Source to Tyne (GB103023075670) 2024 spills / hours 7 / 5.0 Long-term average 8.7 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing, Operational investigation ongoing Improvement Operational improvement ongoing Volume & pollution Estimate from 25 hours spilling →	Kyo Burn	8	25	up 14%	100%
Oaks Field CSO Overflow on sewer network EA ID / permit NWL00974 · 235/1710 Outlet location NZ1929053510 (OS grid reference) · View on Apple Maps WFD catchment Team from Source to Tyne (GB103023075670) 2024 spills / hours 19 / 66 Long-term average 14.9 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing, Operational investigation ongoing Improvement Operational improvement completed Volume & pollution Estimate from 24 hours spilling →	Houghwell Burn	7	24	down 63%	100%
Grays Road CSO Overflow on sewer network EA ID / permit NWL00611 · 25/04/1661 Outlet location NZ4349019453 (OS grid reference) · View on Apple Maps WFD catchment Lustrum Beck Catchment (trib of Tees) (GB103025072550) 2024 spills / hours 11 / 26 Long-term average 8.0 spills a year (monitored since 2014) Investigation Env Act (SODRP) investigation ongoing, Operational investigation ongoing Improvement Operational improvement ongoing Volume & pollution Estimate from 24 hours spilling →	Lustrum Beck	10	24	down 9%	100%
South Moor Memorial Park SSO Overflow on sewer network EA ID / permit NWL01229 · 245/1179 Outlet location NZ1888051190 (OS grid reference) · View on Apple Maps WFD catchment Twizell Burn from Source to Cong Burn (GB103024077590) 2024 spills / hours 24 / 52 Long-term average 25.5 spills a year (monitored since 2014) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 24 hours spilling →	Stanley Burn	26	24	up 8%	99%
Ferryhill PS Storm discharge at pumping station Company site name FERRYHILL (GORDON TERRACE) SPS EA ID / permit NWL00551 · 253/1037 Outlet location NZ2961231647 (OS grid reference) · View on Apple Maps WFD catchment Carrs from Source to Skerne (GB103025072520) 2024 spills / hours 20 / 31 Long-term average 24.5 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 24 hours spilling →	Trib of Mainsforth Stell	18	24	down 10%	100%
Mount Road CSO BT003 Overflow on sewer network EA ID / permit NWL00912 · 210/1358 Outlet location NT9973552213 (OS grid reference) · View on Apple Maps WFD catchment TWEED (GB510202110000) Bathing water Spittal 2024 spills / hours 38 / 27 Long-term average 35.8 spills a year (monitored since 2013) High-spill reason (company) Not asset maintenance - Hydraulic capacity Investigation Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 24 hours spilling →	River Tweed (Saline Estuary)	32	24	down 16%	96%
Newburn SPS Storm discharge at pumping station EA ID / permit NWL00946 · 233/1163 Outlet location NZ1663865136 (OS grid reference) · View on Apple Maps WFD catchment TYNE (GB510302310200) 2024 spills / hours 7 / 6.7 Long-term average 13.0 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing, Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 24 hours spilling →	River Tyne Saline Estuary	10	24	up 43%	99%
Bydale School CSO Overflow on sewer network EA ID / permit NWL00233 · 25/06/1019 Outlet location NZ6297222796 (OS grid reference) · View on Apple Maps WFD catchment Tees Coastal (GB650301500005) Bathing water Marske Sands 2024 spills / hours 27 / 42 Long-term average 22.6 spills a year (monitored since 2013) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 24 hours spilling →	North Sea	18	24	down 33%	90%
Joyce Terrace and Deerness View STW Inlet overflow at sewage works Sewage works Joyce Terrace And Deerness View EA ID / permit NWL00740 · 244/E/0315 Outlet location NZ2172042750 (OS grid reference) · View on Apple Maps WFD catchment Deerness from Hedleyhope Burn to Browney (GB103024077280) 2024 spills / hours 13 / 86 Long-term average 8.0 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 23 hours spilling →	Deerness	17	23	up 31%	93%

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.