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
Beacon Avenue SPS Storm discharge at pumping station EA ID / permit NWL00095 · 253/0237 Outlet location NZ3629429041 (OS grid reference) · View on Apple Maps WFD catchment Skerne from Source to Carrs (GB103025076070) 2024 spills / hours 5 / 24 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 6.4 hours spilling →	Redcar Beck	1	6.4	down 80%	100%
Reyrolle Sewer (South) CSO Overflow on sewer network EA ID / permit NWL01105 · 235/1186 Outlet location NZ3001764352 (OS grid reference) · View on Apple Maps WFD catchment TYNE (GB510302310200) 2024 spills / hours 43 / 107 Long-term average 59.9 spills a year (monitored since 2019) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 6.4 hours spilling →	River Tyne	21	6.4	down 51%	98%
Brooke Avenue (NO20) STY049 CSO Overflow on sewer network EA ID / permit NWL00204 · EPRBB3792AU Outlet location NZ3586962022 (OS grid reference) · View on Apple Maps WFD catchment Don from Source to Tidal Limit (GB103023075690) 2024 spills / hours 42 / 74 Long-term average 37.1 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement Operational improvement completed Volume & pollution Estimate from 6.2 hours spilling →	River Don	7	6.2	down 83%	98%
Andrews House Overflow on sewer network EA ID / permit NWL00051 · 233/1265 Outlet location NZ0928763520 (OS grid reference) · View on Apple Maps WFD catchment Tyne from Watersmeet to Tidal Limit (GB103023075801) 2024 spills / hours 14 / 28 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 6.1 hours spilling →	Tyne (Unamed Trib.)	10	6.1	down 29%	98%
Chatton STW Inlet overflow at sewage works Sewage works Chatton EA ID / permit NWL00273 · 210/0328 Outlet location NU0597728706 (OS grid reference) · View on Apple Maps WFD catchment Till from Roddam Burn to Glen (GB102021073042) 2024 spills / hours 10 / 189 Long-term average 20.8 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 6.1 hours spilling →	Till	7	6.1	down 30%	97%
Calf Fallow Lane SPS Storm discharge at pumping station EA ID / permit NWL00239 · 25/04/1790 Outlet location NZ4384223040 (OS grid reference) · View on Apple Maps WFD catchment Billingham Beck from Brierley Beck to Tees Es (GB103025076010) 2024 spills / hours 3 / 4.0 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 6.1 hours spilling →	Trib of Billingham Beck	4	6.1	up 33%	100%
Moor Road South CSO Overflow on sewer network EA ID / permit NWL00901 · 235/1959 Outlet location NZ2468067410 (OS grid reference) · View on Apple Maps WFD catchment Ouse Burn from Source to Tyne (GB103023075780) 2024 spills / hours 14 / 26 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 6.0 hours spilling →	Unnamed Trib of Ouse Burn	8	6.0	down 43%	99%
East Street Was Swinburn St End CSO Overflow on sewer network EA ID / permit NWL00486 · 235/1924 Outlet location NZ2526963670 (OS grid reference) · View on Apple Maps WFD catchment TYNE (GB510302310200) 2024 spills / hours 24 / 20 Long-term average 20.6 spills a year (monitored since 2018) Monitor below 90% Telemetry or data archiving failure / issue · Resolved - February after reporting year Investigation Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 6.0 hours spilling →	River Tyne	13	6.0	down 46%	83%
Tanfield Trunk Sewer CSO Overflow on sewer network EA ID / permit NWL01341 · 235/1931 Outlet location NZ1714352689 (OS grid reference) · View on Apple Maps WFD catchment Team from Source to Tyne (GB103023075670) 2024 spills / hours 20 / 66 Long-term average 14.3 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing, Operational investigation ongoing Improvement Operational improvement ongoing Volume & pollution Estimate from 5.9 hours spilling →	Kyo Burn (River Team)	3	5.9	down 85%	95%
Kirkby Sewage Pumping Station CSO Storm discharge at pumping station EA ID / permit NWL00763 · 25/04/1636 Outlet location NZ5362005880 (OS grid reference) · View on Apple Maps WFD catchment Leven from Source to Tame (GB103025071890) 2024 spills / hours 6 / 40 Long-term average 1.9 spills a year (monitored since 2018) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 5.8 hours spilling →	The West Beck - Leven	2	5.8	down 67%	100%
Bournmoor SPS Storm discharge at pumping station EA ID / permit NWL00176 · 245/1329 Outlet location NZ3064550935 (OS grid reference) · View on Apple Maps WFD catchment Lumley Park Burn from Herrington Burn to R Wear (GB103024077570) 2024 spills / hours 0 / 0.0 Long-term average 4.0 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 5.7 hours spilling →	Trib of Lumley Park Burn	1	5.7	up from 0	100%
Anick Grange SPS Storm discharge at pumping station EA ID / permit NWL00054 · 233/1046 Outlet location NY9485464992 (OS grid reference) · View on Apple Maps WFD catchment Tyne from Watersmeet to Tidal Limit (GB103023075801) 2024 spills / hours 19 / 101 Long-term average 12.2 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 5.6 hours spilling →	Tyne Trib	2	5.6	down 89%	100%
Wesley Terrace CSO Overflow on sewer network EA ID / permit NWL01477 · 235/1536 Outlet location NZ1687452290 (OS grid reference) · View on Apple Maps WFD catchment Team from Source to Tyne (GB103023075670) 2024 spills / hours 8 / 8.3 Long-term average 7.6 spills a year (monitored since 2017) Investigation Env Act (SODRP) investigation ongoing, Operational investigation ongoing Improvement Operational improvement completed Volume & pollution Estimate from 5.6 hours spilling →	Kyo Burn (Culverted)	8	5.6	no change	97%
Former Castle Dene Sdw SSO Overflow on sewer network EA ID / permit NWL00563 · 245/E/0592 Outlet location NZ2954050630 (OS grid reference) · View on Apple Maps WFD catchment Lumley Park Burn from Herrington Burn to R Wear (GB103024077570) 2024 spills / hours 0 / 0.0 Long-term average 1.3 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement Operational improvement completed Volume & pollution Estimate from 5.5 hours spilling →	Lumley Park Burn	1	5.5	up from 0	100%
Marske Sewage Treatment Works Inlet overflow at sewage works Sewage works Marske EA ID / permit NWL00855 · 25/06/1015 Outlet location NZ6405024200 (OS grid reference) · View on Apple Maps WFD catchment Tees Coastal (GB650301500005) Bathing water Marske Sands 2024 spills / hours 10 / 26 Long-term average 14.9 spills a year (monitored since 2019) Investigation Operational investigation ongoing Improvement Operational improvement ongoing Volume & pollution Estimate from 5.5 hours spilling →	North Sea	24	5.5	up 140%	100%
Walkergate Durham CSO Overflow on sewer network EA ID / permit NWL01444 · EPRCB3097WP Outlet location NZ2733142671 (OS grid reference) · View on Apple Maps WFD catchment Wear from Croxdale Beck to Lumley Park Burn (GB103024077621) 2024 spills / hours 7 / 4.3 Long-term average 16.0 spills a year (monitored since 2023) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 5.5 hours spilling →	River Wear	8	5.5	up 14%	96%
Westbourne Estate SSO Overflow on sewer network EA ID / permit NWL01500 · 226/1274 Outlet location NZ3073174473 (OS grid reference) · View on Apple Maps WFD catchment Seaton Burn from Source to Tidal Limit (GB103022076190) 2024 spills / hours 19 / 19 Long-term average 22.0 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement Operational improvement completed Volume & pollution Estimate from 5.5 hours spilling →	Seaton Burn	18	5.5	down 5%	91%
Stamfordham CSO Overflow on sewer network EA ID / permit NWL01276 · 226/G/0092 Outlet location NZ0817771830 (OS grid reference) · View on Apple Maps WFD catchment Pont from Fenwick Burn to Med Burn (GB103022076840) 2024 spills / hours 16 / 42 Long-term average 19.1 spills a year (monitored since 2018) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement Operational improvement completed Volume & pollution Estimate from 5.3 hours spilling →	Pont	1	5.3	down 94%	98%
Cantebury Road CSO Overflow on sewer network EA ID / permit NWL00242 · 245/1154 Outlet location NZ2805044540 (OS grid reference) · View on Apple Maps WFD catchment Wear from Croxdale Beck to Lumley Park Burn (GB103024077621) 2024 spills / hours 18 / 35 Long-term average 20.0 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 5.2 hours spilling →	Wear Trib	7	5.2	down 61%	100%
Burdon Main Row CSO Overflow on sewer network EA ID / permit NWL00215 · 235/2006 Outlet location NZ3558767688 (OS grid reference) · View on Apple Maps WFD catchment TYNE (GB510302310200) 2024 spills / hours 15 / 17 Long-term average 16.2 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 5.2 hours spilling →	Tyne Estuary	13	5.2	down 13%	99%
Croftdale Road CSO Overflow on sewer network EA ID / permit NWL00350 · 235/1437 Outlet location NZ1822463606 (OS grid reference) · View on Apple Maps WFD catchment TYNE (GB510302310200) 2024 spills / hours 18 / 10 Long-term average 19.0 spills a year (monitored since 2013) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 5.1 hours spilling →	Tyne Estuary	14	5.1	down 22%	100%
The Yarker Lane CSO Overflow on sewer network EA ID / permit NWL01560 · 25/01/0917 Outlet location NY9740123936 (OS grid reference) · View on Apple Maps WFD catchment Tees from Maize Beck to Percy Beck (GB103025072511) 2024 spills / hours 7 / 6.3 Long-term average 14.4 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing, Operational investigation ongoing Improvement Operational improvement ongoing Volume & pollution Estimate from 5.1 hours spilling →	Heugh Sike	6	5.1	down 14%	100%
Collingwood Terrace CSO Overflow on sewer network EA ID / permit NWL00308 · Permit applied for Outlet location NZ3694368873&NZ3694268961 (OS grid reference) · View on Apple Maps WFD catchment River Tyne Estury (GB510302310200) Bathing water Littlehaven Beach 2024 spills / hours 22 / 20 Long-term average 25.6 spills a year (monitored since 2013) Monitor below 90% Sensor failure / issue · Resolved - May Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 4.9 hours spilling →	River Tyne	17	4.9	down 23%	87%
Sea View Storage Tank Overflow on sewer network EA ID / permit NWL01161 · 255/1178 Outlet location NZ4030047850 (OS grid reference) · View on Apple Maps WFD catchment Dalton Beck to North Sea (GB103025075970) 2024 spills / hours 4 / 11 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 4.9 hours spilling →	Dalton Burn	6	4.9	up 50%	94%
Black Lane CSO Overflow on sewer network EA ID / permit NWL00143 · 235/1963 Outlet location NZ2674457739 (OS grid reference) · View on Apple Maps WFD catchment Team from Source to Tyne (GB103023075670) 2024 spills / hours 11 / 7.5 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 4.9 hours spilling →	Longacre Burn	12	4.9	up 9%	96%
High Friarside CSO Overflow on sewer network EA ID / permit NWL00679 · 234/A/0590 Outlet location NZ1568557297 (OS grid reference) · View on Apple Maps WFD catchment Derwent from Burnhope Burn to River Tyne (GB103023074790) 2024 spills / hours 10 / 6.0 Long-term average 18.7 spills a year (monitored since 2013) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 4.9 hours spilling →	Derwent, Tributary of	17	4.9	up 70%	93%
Heddon Banks Farm CSO Overflow on sewer network EA ID / permit NWL00663 · 233/1237 Outlet location NZ1365865567 (OS grid reference) · View on Apple Maps WFD catchment River Tyne (GB510302310200) 2024 spills / hours 30 / 25 Long-term average 25.3 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing, Operational investigation ongoing Improvement Operational improvement completed Volume & pollution Estimate from 4.8 hours spilling →	River Tyne	16	4.8	down 47%	100%
Davey Lamp Ph CSO Overflow on sewer network EA ID / permit NWL00422 · 243/0990 Outlet location NZ3426036230 (OS grid reference) · View on Apple Maps WFD catchment Croxdale Beck from Source to Wear (GB103024077410) 2024 spills / hours 9 / 9.5 Long-term average 12.5 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 4.7 hours spilling →	Coxhoe Beck	8	4.7	down 11%	99%
Essex Close CSO Overflow on sewer network EA ID / permit NWL00526 · 235/1319 Outlet location NZ2382462901 (OS grid reference) · View on Apple Maps WFD catchment TYNE (GB510302310200) 2024 spills / hours 24 / 16 Long-term average 21.4 spills a year (monitored since 2015) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 4.6 hours spilling →	Tyne Estuary	10	4.6	down 58%	90%
Station Road CSO Overflow on sewer network EA ID / permit NWL01292 · 256/1067 Outlet location NZ6014725450&NZ6019425998 (OS grid reference) · View on Apple Maps WFD catchment Tyne from Watersmeet to Tidal Limit (GB103023075801) Bathing water Redcar Coatham 2024 spills / hours 6 / 4.5 Long-term average 7.9 spills a year (monitored since 2014) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 4.6 hours spilling →	North Sea	3	4.6	down 50%	93%
Amelia Close CSO - C49/102 Overflow on sewer network EA ID / permit NWL00050 · 235/1316 Outlet location NZ2207663278 (OS grid reference) · View on Apple Maps WFD catchment TYNE (GB510302310200) 2024 spills / hours 19 / 13 Long-term average 18.4 spills a year (monitored since 2018) Investigation Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 4.6 hours spilling →	Tyne Estuary	11	4.6	down 42%	100%
Railway Street Overflow on sewer network EA ID / permit NWL01081 · 210/1350 Outlet location NT9937153235 (OS grid reference) · View on Apple Maps WFD catchment TWEED (GB510202110000) Bathing water Spittal 2024 spills / hours 12 / 6.9 Long-term average 12.7 spills a year (monitored since 2013) Investigation Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 4.5 hours spilling →	River Tweed (Saline Estuary)	6	4.5	down 50%	100%
Eastern Avenue CSO Overflow on sewer network EA ID / permit NWL00493 · 235/F/0651 Outlet location NZ2464059880 (OS grid reference) · View on Apple Maps WFD catchment Team from Source to Tyne (GB103023075670) 2024 spills / hours 40 / 86 Long-term average 33.9 spills a year (monitored since 2015) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 4.4 hours spilling →	Team	11	4.4	down 73%	90%
Gardner Avenue CSO Overflow on sewer network EA ID / permit NWL00581 · 243/1025 Outlet location NZ1947034630 (OS grid reference) · View on Apple Maps WFD catchment Wear from Gaunless to Browney (GB103024077464) 2024 spills / hours 8 / 8.0 Long-term average 9.8 spills a year (monitored since 2013) Investigation Operational investigation ongoing Improvement Operational improvement ongoing Volume & pollution Estimate from 4.4 hours spilling →	Willington Burn	9	4.4	up 13%	99%
Old School Combined Sewer Overflow Overflow on sewer network EA ID / permit NWL00979 · 25/01/0916 Outlet location NY9741023950 (OS grid reference) · View on Apple Maps WFD catchment Tees from Maize Beck to Percy Beck (GB103025072511) 2024 spills / hours 4 / 3.8 Long-term average 2.5 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing, Operational investigation ongoing Improvement Operational improvement ongoing Volume & pollution Estimate from 4.4 hours spilling →	Heugh Sike	2	4.4	down 50%	99%
Back Elm Street CSO Overflow on sewer network EA ID / permit NWL00075 · 244/E/0216 Outlet location NZ2138344981 (OS grid reference) · View on Apple Maps WFD catchment Browney from Smallhope Burn Deerness confl (GB103024077551) 2024 spills / hours 8 / 12 Long-term average 8.5 spills a year (monitored since 2013) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 4.3 hours spilling →	River Browney	11	4.3	up 38%	91%
Newbrough Pumping Station Storm discharge at pumping station EA ID / permit NWL00943 · 232/0969 Outlet location NY8745367434 (OS grid reference) · View on Apple Maps WFD catchment Newbrough Burn Catchment (trib of South Tyne) (GB103023075560) 2024 spills / hours 19 / 23 Long-term average 22.0 spills a year (monitored since 2020) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 4.3 hours spilling →	Newbrough Burn (South Tyne)	9	4.3	down 53%	100%
Cemetery Road CSO06- Overflow on sewer network EA ID / permit NWL00263 · 255/1057 Outlet location NZ3775038879 (OS grid reference) · View on Apple Maps WFD catchment Castle Eden Burn from Source to North Sea (GB103025075930) 2024 spills / hours 13 / 15 Long-term average 10.3 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 4.2 hours spilling →	Trib of Edderacres Burn	13	4.2	no change	95%
King Street Sewage Pumping Station Storm discharge at pumping station EA ID / permit NWL00758 · 221/1074 Outlet location NU2229131513&NU2305031504 (OS grid reference) · View on Apple Maps WFD catchment North Sea (GB620301100000) 2024 spills / hours 10 / 21 Long-term average 10.0 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 4.2 hours spilling →	North Sea	7	4.2	down 30%	100%
Hetton-Le-Hole SSO No. 1 Overflow on sewer network Company site name HETTON-LE-HOLE DAY CENTRE CSO (SU37) EA ID / permit NWL00671 · 245/1365 Outlet location NZ3509047230&NZ3506047230 (OS grid reference) · View on Apple Maps WFD catchment Lumley Park Burn from Source to Herrington Burn (GB103024077580) 2024 spills / hours 6 / 7.5 Long-term average 9.0 spills a year (monitored since 2014) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 4.2 hours spilling →	Hetton Burn	6	4.2	no change	94%
Janadab CSO Overflow on sewer network EA ID / permit NWL00733 · 235/1200 Outlet location NZ2903062876 (OS grid reference) · View on Apple Maps WFD catchment TYNE (GB510302310200) 2024 spills / hours 22 / 9.0 Long-term average 19.2 spills a year (monitored since 2020) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 4.2 hours spilling →	Tyne Estuary	22	4.2	no change	100%
Red Barns, Bamburgh SPS Storm discharge at pumping station EA ID / permit NWL01097 · 221/1069 Outlet location NU1974935013 (OS grid reference) · View on Apple Maps WFD catchment Northumberland North (GB650301440000) Bathing water Bamburgh Castle 2024 spills / hours 10 / 17 Long-term average 7.4 spills a year (monitored since 2018) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 4.2 hours spilling →	North Sea	3	4.2	down 70%	100%
East Howle STW Inlet overflow at sewage works Sewage works East Howle EA ID / permit NWL00484 · 243/1026 Outlet location NZ2956733918 (OS grid reference) · View on Apple Maps WFD catchment Croxdale Beck from Source to Wear (GB103024077410) 2024 spills / hours 23 / 13 Long-term average 20.6 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 4.2 hours spilling →	Trib of Coxhoe Beck	23	4.2	no change	100%
Foundry Lane NO1 CSO Overflow on sewer network EA ID / permit NWL00566 · 235/1528 Outlet location NZ2624564671 (OS grid reference) · View on Apple Maps WFD catchment TYNE (GB510302310200) 2024 spills / hours 15 / 11 Long-term average 28.7 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 4.1 hours spilling →	Ouse Burn Estuary	8	4.1	down 47%	100%
Lintz Terrace CSO Overflow on sewer network EA ID / permit NWL00797 · 235/1708 Outlet location NZ1818052630 (OS grid reference) · View on Apple Maps WFD catchment Team from Source to Tyne (GB103023075670) 2024 spills / hours 10 / 8.0 Long-term average 9.3 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing, Operational investigation ongoing Improvement Operational improvement ongoing Volume & pollution Estimate from 4.1 hours spilling →	Trib Kyo Burn	8	4.1	down 20%	98%
Derwent Water Terrace CSO BT022 Overflow on sewer network EA ID / permit NWL00442 · EPRAB3090VG Outlet location NU0236149575 (OS grid reference) · View on Apple Maps WFD catchment Northumberland North (GB650301440000) Bathing water Spittal 2024 spills / hours 15 / 37 Long-term average 7.6 spills a year (monitored since 2013) Investigation Operational investigation ongoing Improvement Operational improvement ongoing Volume & pollution Estimate from 4.0 hours spilling →	North Sea	4	4.0	down 73%	100%
Oakfield Road CSO Overflow on sewer network EA ID / permit NWL00972 · 254/1207 Outlet location NZ5091219502 (OS grid reference) · View on Apple Maps WFD catchment Marton West Beck Catchment (trib of Tidal Tees) (GB103025072210) 2024 spills / hours 3 / 1.3 Long-term average 4.4 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 4.0 hours spilling →	Ormesby Beck	5	4.0	up 67%	99%
William Street CSO Overflow on sewer network EA ID / permit NWL01525 · 235/1746 Outlet location NZ3063565667 (OS grid reference) · View on Apple Maps WFD catchment TYNE (GB510302310200) 2024 spills / hours 6 / 4.3 Long-term average 11.4 spills a year (monitored since 2013) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 4.0 hours spilling →	River Tyne Saline Estuary	15	4.0	up 150%	100%
Westfield Court CSO Overflow on sewer network EA ID / permit NWL01502 · 254/1921 Outlet location NZ4317520372 (OS grid reference) · View on Apple Maps WFD catchment Lustrum Beck Catchment (trib of Tees) (GB103025072550) 2024 spills / hours 3 / 4.0 Long-term average 6.9 spills a year (monitored since 2013) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 4.0 hours spilling →	Lustrum Beck Tributary	8	4.0	up 167%	100%
Howdon STW Inlet overflow at sewage works Sewage works Howdon EA ID / permit NWL00711 · 235/1804 Outlet location NZ3370066130 (OS grid reference) · View on Apple Maps WFD catchment River Tyne (GB510302310200) 2024 spills / hours 5 / 4.1 Long-term average 7.7 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 3.9 hours spilling →	River Tyne Saline Estuary	3	3.9	down 40%	100%

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.