Storm overflow register · 2025 annual return

Anglian Water storm overflows, 2025

Anglian Water reported 1,442 storm overflows in England for 2025. Together they recorded 17,322 spills over 105,806 hours, an average of 12.0 spills per overflow against 20.4 across England. That ranks 1 of 10 companies, where 1 is the fewest spills per overflow. Counting the same overflows in both years, spills were down 61% on 2024.

244 overflows did not spill · 38 spilled more than 60 times · 1,323 had monitors working for 90% of the year or more · 419 sewage treatment works with overflows

Hours spilling by month, 2025

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

All Anglian 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
Guilden Morden STW Storm tank at sewage works Sewage works Guilden Morden EA ID / permit AWS00538 · ASCNF1087 Outlet location TL2765045250 (OS grid reference) · View on Apple Maps WFD catchment Rhee (US Wendy) (GB105033038100) 2024 spills / hours 33 / 49 Long-term average 19.0 spills a year (monitored since 2023) Investigation Env Act (SODRP) investigation ongoing Improvement UWWTR improvement ongoing Volume & pollution Estimate from 5.8 hours spilling →	Tributary River Rhee Nt	19	5.8	down 42%	100%
Brightlingsea CSO (Bellfield 35) Overflow on sewer network Company site name Brightlingsea Overflow (Bellfld 35) EA ID / permit AWS00143 · ASENF3270/12163 Outlet location TM0812016640 (OS grid reference) · View on Apple Maps WFD catchment Colne Essex (GB520503713800) Bathing water Brightlingsea Shellfish water Colne 2024 spills / hours 1 / 0.0 Long-term average 8.9 spills a year (monitored since 2019) Investigation Bathing Water and/or Shellfish Water investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 5.8 hours spilling →	The West Dyke	16	5.8	up 1500%	100%
Suffling Road Pumping Station Storm discharge at pumping station Company site name GT YARMOUTH SUFFLING RD SP EA ID / permit AWS01335 · AEETS12169 Outlet location TG5271005520 (OS grid reference) · View on Apple Maps WFD catchment BURE & WAVENEY & YARE & LOTHING (GB510503410700) 2024 spills / hours 10 / 4.5 Long-term average 14.0 spills a year (monitored since 2023) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 5.8 hours spilling →	Tidal River Yare	12	5.8	up 20%	100%
Colchester-East Br (East) CSO Ov Overflow on sewer network Company site name COLCHESTER-EAST BR (EAST)OV EA ID / permit AWS00262 · ASETS1736 Outlet location TM0071025280 (OS grid reference) · View on Apple Maps WFD catchment COLNE (GB520503713800) 2024 spills / hours 5 / 2.0 Long-term average 51.6 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing, Bathing Water and/or Shellfish Water investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 5.8 hours spilling →	River Colne (Tidal)	12	5.8	up 140%	99%
Brightlingsea Station Road CSO Overflow on sewer network Company site name Brightlingsea Overflow Lower Park Road EA ID / permit AWS00144 · ASENF3270/12162 Outlet location TM0812016640 (OS grid reference) · View on Apple Maps WFD catchment Colne Essex (GB520503713800) Bathing water Brightlingsea Shellfish water Colne 2024 spills / hours 33 / 9.8 Long-term average 63.9 spills a year (monitored since 2019) Investigation Bathing Water and/or Shellfish Water investigation ongoing Improvement Env Act (SODRP) improvement ongoing, UWWTR improvement ongoing Volume & pollution Estimate from 5.7 hours spilling →	The West Dyke	20	5.7	down 39%	100%
Oundle Barnwell Road TPS Storm discharge at pumping station Company site name Oundle Barnwell Road Terminal Pumping Station EA ID / permit AWS00957 · AWNNF2127 Outlet location TL0367087830 (OS grid reference) · View on Apple Maps WFD catchment Lyveden Brook (GB105032045240) 2024 spills / hours 4 / 14 Long-term average 4.7 spills a year (monitored since 2019) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 5.6 hours spilling →	River Nene	3	5.6	down 25%	100%
Ashwell Water Recycling Centre Inlet overflow at sewage works Sewage works Ashwell Company site name ASHWELL STW EA ID / permit AWS00030 · AW1NF2723 Outlet location TL2548040970 (OS grid reference) · View on Apple Maps WFD catchment Rhee (US Wendy) (GB105033038100) 2024 spills / hours 45 / 421 Long-term average 21.0 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 5.6 hours spilling →	The River Rhee	10	5.6	down 78%	100%
Northampton Victoria Gardens CSO Overflow on sewer network Company site name NORTHAMPTON-VICTORIA GARDENS EA ID / permit AWS00916 · EPRJB3297RX Outlet location SP7582060010 (OS grid reference) · View on Apple Maps WFD catchment Nene - conf Brampton Branch to conf Ise (GB105032045050) 2024 spills / hours 28 / 25 Long-term average 33.6 spills a year (monitored since 2019) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 5.6 hours spilling →	River Nene	12	5.6	down 57%	100%
Elizabeth Avenue PS Storm discharge at pumping station Company site name TATTERSHALL BR-ELIZBTH AV TPS EA ID / permit AWS00394 · ANNNF2274 Outlet location TF1920056100 (OS grid reference) · View on Apple Maps WFD catchment Witham - conf Catchwater Drain to conf Bain (GB205030062425) 2024 spills / hours 1 / 1.0 Long-term average 1.0 spills a year (monitored since 2024) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 5.5 hours spilling →	Soke Dyke R Witham	1	5.5	no change	100%
Gt Chishill Rd Pumping Station Storm discharge at pumping station Company site name HEYDON-GREAT CHISHILL RD SP EA ID / permit AWS00535 · AWCNF11487 Outlet location TL4293039440 (OS grid reference) · View on Apple Maps WFD catchment Rhee (DS Wendy) (GB105033037610) 2024 spills / hours 0 / 0.0 Long-term average 0.5 spills a year (monitored since 2024) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 5.5 hours spilling →	Unnamed Watercourse	1	5.5	up from 0	100%
SSO Milton Malsor Overflow on sewer network Company site name MILTON MALSOR-LOWER ROAD SSO EA ID / permit AWS01247 · AW5NF1808 Outlet location SP7328056060 (OS grid reference) · View on Apple Maps WFD catchment Wootton Brook (GB105032045550) 2024 spills / hours 32 / 103 Long-term average 21.0 spills a year (monitored since 2024) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 5.5 hours spilling →	Milton Brook	10	5.5	down 69%	94%
21 High Street CSO Overflow on sewer network Company site name BURTON LATIMER XX KING RD SSO EA ID / permit AWS00001 · AWNNF13860 Outlet location SP9037074740 (OS grid reference) · View on Apple Maps WFD catchment Ise - Lower (GB105032045140) 2024 spills / hours 9 / 4.5 Long-term average 9.0 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 →	Un-Named Trib River Ise	17	5.5	up 89%	99%
Grantham Rd - Sleaford Overflow on sewer network Company site name SLEAFORD-QUEEN ST/GRANTHA RD EA ID / permit AWS00478 · AW3NFF1139 Outlet location TF0650045400 (OS grid reference) · View on Apple Maps WFD catchment Slea (GB105030056670) 2024 spills / hours 3 / 0.8 Long-term average 4.3 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 →	Unknown Trib. Nine Foot Drain	4	5.5	up 33%	100%
Ely Lisle Lane Overflow on sewer network Company site name Ely Lisle Lane CSO EA ID / permit AWS00409 · AECNF10401 Outlet location TL5458079950 (OS grid reference) · View on Apple Maps WFD catchment Ely Ouse (South Level) (GB205033000070) 2024 spills / hours 2 / 0.2 Long-term average 6.6 spills a year (monitored since 2019) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 5.4 hours spilling →	River Great Ouse	13	5.4	up 550%	100%
Langham WRC (Aka Binham WRC) Storm tank at sewage works Sewage works Langham Company site name LANGHAM STW (NORFOLK) EA ID / permit AWS00709 · AEENF1295 Outlet location TF9990041100 (OS grid reference) · View on Apple Maps WFD catchment Binham Tributary (GB105034055830) 2024 spills / hours 88 / 1,501 Long-term average 43.7 spills a year (monitored since 2023) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 5.3 hours spilling →	River Stiffkey Nt	2	5.3	down 98%	100%
Paglesham West Terminal PS Storm discharge at pumping station Company site name PAGLESHAM-WEST TPS EA ID / permit AWS00970 · ASENF10352 Outlet location TQ9262092460 (OS grid reference) · View on Apple Maps WFD catchment CROUCH (GB520503704100) 2024 spills / hours 28 / 350 Long-term average 20.0 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 5.3 hours spilling →	Stannets Creek Brook	1	5.3	down 96%	100%
Benfleet Marsh Pumping Station Storm discharge at pumping station Company site name Benfleet Marsh Terminal Pumping Station EA ID / permit AWS00078 · AW2NFE08669 Outlet location TQ7742086250 (OS grid reference) · View on Apple Maps WFD catchment Crouch (A129 - Wickford) (GB105037028540) 2024 spills / hours 20 / 64 Long-term average 12.3 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing, Bathing Water and/or Shellfish Water investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 5.3 hours spilling →	Trib Benfleet Creek	1	5.3	down 95%	100%
Wickford-Elizabeth Drive CSO Overflow on sewer network Company site name WICKFORD ELIZABETH DRIVE MH9603 FDT EA ID / permit AWS01568 · Permit Applied For Outlet location TQ7405593730 (OS grid reference) · View on Apple Maps WFD catchment Crouch (A129 - Wickford) (GB105037028540) 2024 spills / hours 0 / 0.0 Long-term average 5.0 spills a year (monitored since 2024) Investigation Env Act (SODRP) investigation ongoing, Bathing Water and/or Shellfish Water investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 5.3 hours spilling →	River Crouch	5	5.3	up from 0	91%
Nethergate Street CSO Overflow on sewer network Company site name BUNGAY NETHERGATE ST CSO EA ID / permit AWS00872 · ASENF15588 Outlet location TM3369090030 (OS grid reference) · View on Apple Maps WFD catchment Waveney (Starston Brook - Ellingham Mill) (GB105034045902) 2024 spills / hours 24 / 11 Long-term average 17.2 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 5.3 hours spilling →	River Waveney	12	5.3	down 50%	95%
SSO at Swinstead Overflow on sewer network Company site name SWINSTEAD SSO EA ID / permit AWS01234 · AW5NF1811 Outlet location TF0237022780 (OS grid reference) · View on Apple Maps WFD catchment Grimsthorpe Park Brook (GB105031050450) 2024 spills / hours 1 / 5.0 Long-term average 1.0 spills a year (monitored since 2024) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 5.3 hours spilling →	Trib East Glen	1	5.3	no change	99%
Rochford Depot Pumping Station Storm discharge at pumping station Company site name Rochford Depot Pumping Station EA ID / permit AWS01057 · AW2NFE15272 Outlet location TQ8773090230 (OS grid reference) · View on Apple Maps WFD catchment Noblesgreen Ditch (GB105037028743) Shellfish water Upper Roach 2024 spills / hours 12 / 17 Long-term average 8.6 spills a year (monitored since 2019) Investigation Bathing Water and/or Shellfish Water investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 5.1 hours spilling →	The River Roach	1	5.1	down 92%	100%
Wilsford STW Storm Inlet overflow at sewage works Sewage works Wilsford Company site name WILSFORD STW EA ID / permit AWS01506 · ANNNF1707 Outlet location TF0090042850 (OS grid reference) · View on Apple Maps WFD catchment Slea (GB105030056670) 2024 spills / hours 2 / 20 Long-term average 2.0 spills a year (monitored since 2024) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 5.0 hours spilling →	Ditch to Swallow Hole	2	5.0	no change	100%
Mears Ashby Main PS Storm discharge at pumping station Company site name MEARS ASHBY MAIN SP EA ID / permit AWS00831 · AW5NF455 Outlet location SP8430065220 (OS grid reference) · View on Apple Maps WFD catchment Swanspool Brook (GB105032045070) 2024 spills / hours 10 / 28 Long-term average 5.0 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 5.0 hours spilling →	Swanspool Brook	4	5.0	down 60%	100%
Caravan Park Pumping Station Storm discharge at pumping station Company site name STONE ST LAWRENCE-MAIN RD TPS EA ID / permit AWS00200 · ASENF16187 Outlet location TL9541005540 (OS grid reference) · View on Apple Maps WFD catchment Blackwater (Combined Essex) (GB105037041160) 2024 spills / hours 9 / 29 Long-term average 6.0 spills a year (monitored since 2024) Investigation Env Act (SODRP) investigation ongoing, Bathing Water and/or Shellfish Water investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 5.0 hours spilling →	Motts Farm Drain Trib R Black	3	5.0	down 67%	100%
Aldwincle TPS Storm discharge at pumping station EA ID / permit AWS00014 · AWNNF2104 Outlet location TL0079081380 (OS grid reference) · View on Apple Maps WFD catchment Harpers Brook (GB105032045230) 2024 spills / hours 16 / 195 Long-term average 8.7 spills a year (monitored since 2023) Investigation Env Act (SODRP) investigation ongoing Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 5.0 hours spilling →	Trib River Nene	2	5.0	down 88%	100%
Wignall Street PS Storm discharge at pumping station Company site name LAWFORD-WIGNALL ST SP EA ID / permit AWS01501 · AW2NFE04383 Outlet location TM0875031190 (OS grid reference) · View on Apple Maps WFD catchment STOUR (ESSEX) (GB520503613602) 2024 spills / hours 77 / 1,667 Long-term average 39.5 spills a year (monitored since 2024) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 5.0 hours spilling →	Trib Wignall Brook	2	5.0	down 97%	100%
Warboys Church Street Term Pump Sta Storm discharge at pumping station Company site name WARBOYS-CHURCH STREET TPS EA ID / permit AWS01436 · AWCNF11054 Outlet location TL3030079740 (OS grid reference) · View on Apple Maps WFD catchment Bury Brook (GB105033043140) 2024 spills / hours 12 / 162 Long-term average 4.8 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 5.0 hours spilling →	tributary Ripton Brook	1	5.0	down 92%	97%
White Hart TPS Storm discharge at pumping station Company site name GODMANCHESTER-WHITE HART TPS EA ID / permit AWS01488 · AW1NF2281 Outlet location TL2507070850 (OS grid reference) · View on Apple Maps WFD catchment Ouse (Roxton to Earith) (GB105033047921) 2024 spills / hours 10 / 7.3 Long-term average 3.8 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 5.0 hours spilling →	Trib River Great Ouse	3	5.0	down 70%	100%
Cheapside Overflow on sewer network Company site name RAYLEIGH-CHEAPSIDE SSO EA ID / permit AWS00216 · AW2NFE02858 Outlet location TQ7950091800 (OS grid reference) · View on Apple Maps WFD catchment CROUCH (GB520503704100) 2024 spills / hours 25 / 12 Long-term average 15.5 spills a year (monitored since 2024) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 5.0 hours spilling →	Trib River Crouch	6	5.0	down 76%	97%
Heathfield Way SSO Overflow on sewer network Company site name NORTHAMPTON-HEATHFIELD WAY SSO EA ID / permit AWS00582 · AW5NF1833 Outlet location SP7447062340 (OS grid reference) · View on Apple Maps WFD catchment Brampton Branch - Lower (GB105032045390) 2024 spills / hours 8 / 3.5 Long-term average 7.0 spills a year (monitored since 2024) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 5.0 hours spilling →	Trib River Nene	6	5.0	down 25%	99%
Lowestoft Marina CSO Overflow on sewer network Company site name Lowestoft Marina Combined Sewer Overflow EA ID / permit AWS00787 · ASETS4083/16991 Outlet location TM5513093030 (OS grid reference) · View on Apple Maps WFD catchment BURE & WAVENEY & YARE & LOTHING (GB510503410700) Bathing water Lowestoft (North of Claremont Pier) 2024 spills / hours 16 / 3.8 Long-term average 47.6 spills a year (monitored since 2019) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 4.9 hours spilling →	North Sea via Waveney Dock	12	4.9	down 25%	98%
Broad Lane PS Storm discharge at pumping station Company site name COTTENHAM BROAD LANE SP 1 EA ID / permit AWS00153 · AWCNF11397 Outlet location TL4486068240 (OS grid reference) · View on Apple Maps WFD catchment Old West River (GB205033043375) 2024 spills / hours 1 / 2.5 Long-term average 2.0 spills a year (monitored since 2023) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 4.8 hours spilling →	Catchwater Drain Cottenham Lod	1	4.8	no change	100%
Wolverton Rail Freight CSO Overflow on sewer network Company site name WOLVERTON RAIL FREIGHT MD SSO EA ID / permit AWS01532 · AW1NF121 Outlet location SP8230041340 (OS grid reference) · View on Apple Maps WFD catchment Loughton Brook (GB105033037900) 2024 spills / hours 17 / 39 Long-term average 12.5 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 4.8 hours spilling →	Trib of River Great Ouse	9	4.8	down 47%	100%
Snitterby Pumping Station Storm discharge at pumping station Company site name SNITTERBY SP EA ID / permit AWS01147 · ANNNF10111 Outlet location SK9852094910 (OS grid reference) · View on Apple Maps WFD catchment Black Dyke (trib of Ancholme) (GB104029061890) 2024 spills / hours 0 / 0.0 Long-term average 1.0 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 4.8 hours spilling →	unnamed tributary Black Dyke	1	4.8	up from 0	100%
Leiston - Valley Road/Crown Street Overflow on sewer network Company site name Leiston - Valley Road/Crown Street CSO EA ID / permit AWS00726 · EPRNB3695EB Outlet location TM4523063300 (OS grid reference) · View on Apple Maps WFD catchment Leiston Beck (GB105035046271) 2024 spills / hours 31 / 46 Long-term average 16.3 spills a year (monitored since 2020) Monitor below 90% Comms failure / issue · Resolved - Oct Investigation Env Act (SODRP) investigation ongoing, Bathing Water and/or Shellfish Water investigation ongoing Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 4.8 hours spilling →	Leiston Beck	11	4.8	down 65%	79%
Witcham Overflow on sewer network Company site name WITCHAM-THE SLADE MH90 OVSSO EA ID / permit AWS01520 · AW1NF999 Outlet location TL4640079000 (OS grid reference) · View on Apple Maps WFD catchment Old Bedford River / River Delph (inc The Hundred Foot Washes) (GB205033000060) 2024 spills / hours 9 / 18 Long-term average 5.5 spills a year (monitored since 2024) Monitor below 90% Power failure / issue · Resolved - Jul Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 4.8 hours spilling →	Counter Drain (Suttin and Mepal Idb incl, Cranbrook Drain)	2	4.8	down 78%	46%
March-Elliot Road CSO Overflow on sewer network Company site name March-Elliot Road CSO EA ID / permit AWS00812 · AW1NF3189 Outlet location TL4083096940 (OS grid reference) · View on Apple Maps WFD catchment Middle Level (GB205033000050) 2024 spills / hours 8 / 31 Long-term average 3.5 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 4.8 hours spilling →	River Nene (Old Course)	1	4.8	down 88%	96%
Windsor Drive CSO Overflow on sewer network Company site name MARCH WISBECH RD/NORWOOD RD OV EA ID / permit AWS01508 · AECNF11505 Outlet location TL4082096940 (OS grid reference) · View on Apple Maps WFD catchment Middle Level (GB205033000050) 2024 spills / hours 8 / 31 Long-term average 3.7 spills a year (monitored since 2023) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 4.8 hours spilling →	The River Nene (Old Course)	1	4.8	down 88%	96%
Cublington (Wing) STW Storm tank at sewage works Sewage works Cublington Company site name WING-CUBLINGTON ROAD STW EA ID / permit AWS00313 · AW1NF700 Outlet location SP8566021880 (OS grid reference) · View on Apple Maps WFD catchment Ledburn Brook (GB105033030540) 2024 spills / hours 25 / 144 Long-term average 10.0 spills a year (monitored since 2022) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 4.7 hours spilling →	Wing Brook River Ouzel Nt	3	4.7	down 88%	100%
Gtyarmouth Gorleston/Brush Bend CSO Overflow on sewer network Company site name Gt Yarmouth Gorleston/Brush Bend Combined Sewer Overflow EA ID / permit AWS00537 · AEETS3292/12178 Outlet location TG5301003720 (OS grid reference) · View on Apple Maps WFD catchment BURE & WAVENEY & YARE & LOTHING (GB510503410700) Bathing water Gorleston Beach 2024 spills / hours 12 / 9.9 Long-term average 13.7 spills a year (monitored since 2019) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 4.7 hours spilling →	River Yare (Tidal)	4	4.7	down 67%	100%
Kings Rd PS Storm discharge at pumping station Company site name CLEETHORPES, KINGS ROAD PS EA ID / permit AWS00697 · ANNTS13063 Outlet location TA3273006640 (OS grid reference) · View on Apple Maps WFD catchment HUMBER LOWER (GB530402609201) Bathing water Cleethorpes; Humberston Fitties 2024 spills / hours 2 / 4.2 Long-term average 1.3 spills a year (monitored since 2022) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 4.6 hours spilling →	tidal section Buck Beck	1	4.6	down 50%	100%
Biggleswade - Shortmead St TPS Storm discharge at pumping station Company site name BIGGLESWADE-SHORTMEAD ST TPS EA ID / permit AWS00085 · AWCNF10469 Outlet location TL1868045280 (OS grid reference) · View on Apple Maps WFD catchment Ivel (DS Langford to Roxton) (GB105033038170) 2024 spills / hours 6 / 32 Long-term average 4.7 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 4.5 hours spilling →	River Ivel	2	4.5	down 67%	100%
Diss Road Pumping Station Storm discharge at pumping station Company site name ATTLEBOROUGH-DISS ROAD SP EA ID / permit AWS00338 · AECNF11499 Outlet location TM0581093720 (OS grid reference) · View on Apple Maps WFD catchment Buckenham Stream (GB105033043411) 2024 spills / hours 27 / 458 Long-term average 14.5 spills a year (monitored since 2024) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 4.5 hours spilling →	Trib of River Thet	2	4.5	down 93%	100%
Greenside Close Storm discharge at pumping station Company site name SWAVESEY-COW FEN SM EA ID / permit AWS00522 · ASCNF11061 Outlet location TL3640068720 (OS grid reference) · View on Apple Maps WFD catchment Swavesey Drain (GB105033042770) 2024 spills / hours 0 / 0.0 Long-term average 0.5 spills a year (monitored since 2024) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 4.5 hours spilling →	unnamed ditch tributary River	1	4.5	up from 0	100%
Sports Centre Mill Rd. Overflow on sewer network Company site name COLCHESTER-CRICKET PAV OV EA ID / permit AWS01222 · AW2NFC297 Outlet location TM0060028888 (OS grid reference) · View on Apple Maps WFD catchment Salary Brook (GB105037041320) 2024 spills / hours 8 / 9.8 Long-term average 7.0 spills a year (monitored since 2024) Investigation Env Act (SODRP) investigation ongoing, Bathing Water and/or Shellfish Water investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 4.5 hours spilling →	Tendring Streams	6	4.5	down 25%	100%
St Peters St and Newsons Meadow CSO Overflow on sewer network Company site name Lowestoft CSO’s EA ID / permit AWS01265 · ASETS16977 Outlet location TM5388092820 (OS grid reference) · View on Apple Maps WFD catchment Waveney (Ellingham Mill - Burgh St. Peter) (GB105034045903) 2024 spills / hours 13 / 4.0 Long-term average 14.0 spills a year (monitored since 2024) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 4.5 hours spilling →	Inner Harbour	15	4.5	up 15%	100%
Ruskington MH0102 Manor Street CSO Overflow on sewer network Company site name RUSKINGTON-MH0102 MANOR ST SSO EA ID / permit AWS01080 · ANNNF1750 Outlet location TF0809051150 (OS grid reference) · View on Apple Maps WFD catchment Ruskington Beck (GB105030056700) 2024 spills / hours 7 / 3.8 Long-term average 3.4 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 4.3 hours spilling →	The Ruskington Beck	3	4.3	down 57%	100%
Southend - Belton Gardens PS Overflow on sewer network Company site name SOUTHEND-ROY ART/ASH AV CSO EA ID / permit AWS01185 · CASM.0089 Outlet location TQ9068081920 (OS grid reference) · View on Apple Maps WFD catchment THAMES LOWER (GB530603911401) 2024 spills / hours 5 / 6.8 Long-term average 4.5 spills a year (monitored since 2024) Investigation Env Act (SODRP) investigation ongoing, Bathing Water and/or Shellfish Water investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 4.3 hours spilling →	Thames Estuary	4	4.3	down 20%	100%
Great Gidding PS Storm discharge at pumping station Company site name GREAT GIDDING TPS EA ID / permit AWS00498 · AW1NF629 Outlet location TL1160082800 (OS grid reference) · View on Apple Maps WFD catchment Alconbury Brook (GB105033042820) 2024 spills / hours 73 / 479 Long-term average 37.5 spills a year (monitored since 2024) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 4.3 hours spilling →	Alconbury Brook	2	4.3	down 97%	100%
Stamford - Castle Street CSO Overflow on sewer network Company site name Stamford - Castle Street Combined Sewer Overflow EA ID / permit AWS01272 · EPRPB3893RV Outlet location TF0294206954 (OS grid reference) · View on Apple Maps WFD catchment Welland - conf Langton Bk to conf Gwash (GB105031050580) 2024 spills / hours 15 / 15 Long-term average 16.3 spills a year (monitored since 2022) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 4.3 hours spilling →	River Welland	10	4.3	down 33%	100%

Sewage treatment works

Storm tanks and inlet overflows at each Anglian 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.