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

010k20k30k40kJan 2025: 32,000 hours spillingJanFeb 2025: 10,152 hours spillingFebMar 2025: 1,794 hours spillingMarApr 2025: 1,375 hours spillingAprMay 2025: 789 hours spillingMayJun 2025: 1,209 hours spillingJunJul 2025: 3,556 hours spillingJulAug 2025: 359 hours spillingAugSep 2025: 1,848 hours spillingSepOct 2025: 2,287 hours spillingOctNov 2025: 24,856 hours spillingNovDec 2025: 25,568 hours spillingDec
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.

OverflowDischarges toSpills 2025Hours 2025Spills vs 2024Monitor uptime
Seaview Estate PS
Storm discharge at pumping station
Company site name
Great Wakering Seaview Estate Pumping Station
EA ID / permit
AWS01111 · AW2NFE07169
Outlet location
TQ9550086970 (OS grid reference) · View on Apple Maps
WFD catchment
THAMES LOWER (GB530603911401)
Shellfish water
Foulness
2024 spills / hours
4 / 0.4
Long-term average
3.3 spills a year (monitored since 2019)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.5 hours spilling →
The River Thames 3 0.5 down 25% 100%
Brantham - Factory Lane (B) TPS
Storm discharge at pumping station
Company site name
Brantham Factory Lane OV
EA ID / permit
AWS00130 · ASENF2290
Outlet location
TM1027033020 (OS grid reference) · View on Apple Maps
WFD catchment
STOUR (ESSEX) (GB520503613602)
2024 spills / hours
8 / 5.5
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 0.5 hours spilling →
Trib River Stour 2 0.5 down 75% 100%
Hadleigh Road CSO
Overflow on sewer network
Company site name
IPSWICH-HADLEIGH RD OV
EA ID / permit
AWS00546 · AW4NF74X
Outlet location
TM1409044910 (OS grid reference) · View on Apple Maps
WFD catchment
Gipping (d/s Stowmarket) (GB105035046280)
2024 spills / hours
11 / 4.0
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 0.5 hours spilling →
River Gipping 1 0.5 down 91% 100%
Overflow Outlet at the Civic Centre
Overflow on sewer network
Company site name
SOUTHEND-VICTORIA AVENUE
EA ID / permit
AWS00965 · AW2NFE01558
Outlet location
TQ8760087200 (OS grid reference) · View on Apple Maps
WFD catchment
Prittle Brook (GB105037028730)
2024 spills / hours
1 / 0.5
Long-term average
1.5 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 0.5 hours spilling →
Prittle Brook 2 0.5 up 100% 100%
Rochford Tower CSO
Overflow on sewer network
Company site name
FISHTOFT-ROCHFORD TOWER LANE
EA ID / permit
AWS01058 · ANNNF13493
Outlet location
TF3509044360 (OS grid reference) · View on Apple Maps
WFD catchment
East & West Fen Drains (GB205030056405)
2024 spills / hours
0 / 0.0
Long-term average
0.5 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 0.5 hours spilling →
Tributary of the Hobhole Drain 1 0.5 up from 0 99%
Southend - Belton Gardens PS
Overflow on sewer network
Company site name
SOUTHEND-HAMS/ROY ART W CSO
EA ID / permit
AWS01184 · CASM.0089
Outlet location
TQ9068081920 (OS grid reference) · View on Apple Maps
WFD catchment
THAMES LOWER (GB530603911401)
2024 spills / hours
0 / 0.0
Long-term average
1.0 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 0.5 hours spilling →
Thames Estuary 2 0.5 up from 0 97%
Great Chesterford WRC
Storm tank at sewage works
Sewage works
Great Chesterford
Company site name
GREAT CHESTERFORD STW
EA ID / permit
AWS00489 · AWCNF11340
Outlet location
TL4982043970 (OS grid reference) · View on Apple Maps
WFD catchment
Cam (Audley End to Stapleford) (GB105033037590)
2024 spills / hours
0 / 0.0
Long-term average
2.3 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.5 hours spilling →
River Cam 1 0.5 up from 0 100%
Great Welnetham WRC
Storm tank at sewage works
Sewage works
Great Welnetham
Company site name
GT WHELNETHAM STW
EA ID / permit
AWS00512 · ASCNF2062
Outlet location
TL8766060270 (OS grid reference) · View on Apple Maps
WFD catchment
Lark (Hawstead to Abbey Gardens) (GB105033042940)
2024 spills / hours
8 / 36
Long-term average
7.6 spills a year (monitored since 2021)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.5 hours spilling →
The River Lark Nt 1 0.5 down 88% 100%
Swineshead(Beds) STW
Storm tank at sewage works
Sewage works
Swineshead
Company site name
SWINESHEAD STW (BEDS)
EA ID / permit
AWS01344 · AW1NF2725
Outlet location
TL0601065850 (OS grid reference) · View on Apple Maps
WFD catchment
Pertenhall Brook (GB105033042960)
2024 spills / hours
4 / 25
Long-term average
2.5 spills a year (monitored since 2024)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.5 hours spilling →
Trib of Riseley Brook River Ky 1 0.5 down 75% 100%
Weston Underwood STW
Overflow on sewer network
Company site name
Weston Underwood WRC
EA ID / permit
AWS01482 · AWCNF11086
Outlet location
SP8680050310 (OS grid reference) · View on Apple Maps
WFD catchment
Ouse (Newport Pagnell to Roxton) (GB105033047923)
2024 spills / hours
83 / 1,495
Long-term average
42.5 spills a year (monitored since 2024)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.5 hours spilling →
tributary River Great Ouse 2 0.5 down 98% 100%
Soham Cherry Tree Pumping Station
Storm discharge at pumping station
Company site name
SOHAM-CHERRY TREE SP
EA ID / permit
AWS01154 · AECNF11498
Outlet location
TL6019072090 (OS grid reference) · View on Apple Maps
WFD catchment
Ely Ouse (South Level) (GB205033000070)
2024 spills / hours
1 / 1.8
Long-term average
2.7 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.5 hours spilling →
Tributary of the Soham Lode 1 0.5 no change 99%
St Peters Rd (N) PS
Storm discharge at pumping station
Company site name
KINGS LYNN-ST PETERS ROAD TPS
EA ID / permit
AWS01263 · AECNF10472
Outlet location
TF6108019860 (OS grid reference) · View on Apple Maps
WFD catchment
GREAT OUSE (GB530503300300)
2024 spills / hours
22 / 37
Long-term average
12.0 spills a year (monitored since 2024)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.5 hours spilling →
West Lynn Drain 2 0.5 down 91% 100%
Great Baddow - Bramston Close CSO
Overflow on sewer network
Company site name
GT BADDOW-BRAMSTON CL OV
EA ID / permit
AWS00481 · ASENF12075
Outlet location
TL7275005810 (OS grid reference) · View on Apple Maps
WFD catchment
Chelmer (d/s confluence with Can) (GB105037033530)
2024 spills / hours
7 / 9.8
Long-term average
7.6 spills a year (monitored since 2021)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.5 hours spilling →
Baddow Brook 1 0.5 down 86% 92%
Great Houghton CSO
Overflow on sewer network
EA ID / permit
AWS00503 · AW5NF70
Outlet location
SP7910059300 (OS grid reference) · View on Apple Maps
WFD catchment
Nene - conf Brampton Branch to conf Ise (GB105032045050)
2024 spills / hours
0 / 0.0
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 0.5 hours spilling →
Unknown trib. 2 0.5 up from 0 100%
Kettering Rd (2504)
Overflow on sewer network
Company site name
GREAT HARROWDEN-KETTERING ROAD SSO
EA ID / permit
AWS00671 · AW5NF2038
Outlet location
SP8829071590 (OS grid reference) · View on Apple Maps
WFD catchment
Ise - Lower (GB105032045140)
2024 spills / hours
3 / 1.3
Long-term average
2.5 spills a year (monitored since 2024)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.5 hours spilling →
Trib River Nene 2 0.5 down 33% 98%
Kimbolton
Overflow on sewer network
Company site name
KIMBOLTON-GEORGE LANE SSO
EA ID / permit
AWS00677 · AW1NF141
Outlet location
TL0000060000 (OS grid reference) · View on Apple Maps
WFD catchment
Sharn Brook (GB105033043250)
2024 spills / hours
30 / 310
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 0.5 hours spilling →
River Kym 1 0.5 down 97% 100%
Kings Lynn Tuesday Market Place CSO
Overflow on sewer network
Company site name
Kings Lynn - Tuesday Market Place Combined Sewer Overflow
EA ID / permit
AWS00689 · EPRNB3291NA
Outlet location
TF6148020470 (OS grid reference) · View on Apple Maps
WFD catchment
GREAT OUSE (GB530503300300)
2024 spills / hours
3 / 0.8
Long-term average
3.5 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.5 hours spilling →
Tidal River Great Ouse 2 0.5 down 33% 99%
Lincoln Sincil Bank Combined Sew Ov
Overflow on sewer network
Company site name
LINCOLN-SINCIL BANK SSO
EA ID / permit
AWS00737 · AW3NF833
Outlet location
SK9759070630 (OS grid reference) · View on Apple Maps
WFD catchment
Witham - conf Catchwater Drain to conf Bain (GB205030062425)
2024 spills / hours
3 / 1.0
Long-term average
2.0 spills a year (monitored since 2021)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.5 hours spilling →
Sincil Dyke 2 0.5 down 33% 100%
Littleport-Friars Wy Wis Rd
Overflow on sewer network
EA ID / permit
AWS00758 · AWCNF3106/11357
Outlet location
TL5642087280 (OS grid reference) · View on Apple Maps
WFD catchment
Ely Ouse (South Level) (GB205033000070)
2024 spills / hours
4 / 1.0
Long-term average
3.2 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.5 hours spilling →
tributary Mare Fen Drain 2 0.5 down 50% 100%
Norwich Recorder Road CSO
Overflow on sewer network
Company site name
NORWICH - RECORDER ROAD
EA ID / permit
AWS00941 · AW4NF548X
Outlet location
TG2378308540 (OS grid reference) · View on Apple Maps
WFD catchment
Wensum DS Norwich (GB105034055882)
2024 spills / hours
1 / 0.3
Long-term average
2.3 spills a year (monitored since 2023)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.5 hours spilling →
The River Wensum 2 0.5 up 100% 100%
Reepham Kennel Lane/Clough Hill CSO
Overflow on sewer network
Company site name
REEPHAM-KENNEL LA/CLOUGH HIL
EA ID / permit
AWS01040 · ANNNF1641
Outlet location
TF0352073740 (OS grid reference) · View on Apple Maps
WFD catchment
Barlings Eau (GB105030062290)
2024 spills / hours
1 / 0.3
Long-term average
1.4 spills a year (monitored since 2021)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.5 hours spilling →
The Reepham Beck 1 0.5 no change 100%
SSO Stanwell Way Wellingborough
Overflow on sewer network
Company site name
WELLINGBOROUGH-STANWELL WAY
EA ID / permit
AWS01249 · AW5NF1801
Outlet location
SP8714067170 (OS grid reference) · View on Apple Maps
WFD catchment
Swanspool Brook (GB105032045070)
2024 spills / hours
13 / 128
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 0.5 hours spilling →
Trib Swanspool Brook 1 0.5 down 92% 100%
Elizabeth Road Outfall
Overflow on sewer network
Company site name
SOUTHEND-WOODGRANGE DRIVE CSO 1
EA ID / permit
AWS00396 · S/WR479
Outlet location
TQ9001084720 (OS grid reference) · View on Apple Maps
WFD catchment
THAMES LOWER (GB530603911401)
Bathing water
Southend Jubilee; Southend Three Shells
2024 spills / hours
0 / 0.0
Long-term average
0.5 spills a year (monitored since 2024)
Investigation
Bathing Water and/or Shellfish Water investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.5 hours spilling →
Thames Estuary 1 0.5 up from 0 100%
Frinton - Esplanade/Second Ave CSO
Overflow on sewer network
Company site name
Frinton Esplanade/Second Avenue Combined Sewer Overflow
EA ID / permit
AWS00453 · ASECS3309/12191
Outlet location
TM2354018870 (OS grid reference) · View on Apple Maps
WFD catchment
Holland Brook (GB105037077810)
Bathing water
Frinton
2024 spills / hours
4 / 0.4
Long-term average
4.4 spills a year (monitored since 2019)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.5 hours spilling →
The North Sea 1 0.5 down 75% 100%
Great Yarmouth Boundary Road PS
Storm discharge at pumping station
Company site name
Great Yarmouth Boundary Road Pumping Station
EA ID / permit
AWS00515 · AEETS3291/12173
Outlet location
TG5242006170 (OS grid reference) · View on Apple Maps
WFD catchment
BURE & WAVENEY & YARE & LOTHING (GB510503410700)
Bathing water
Great Yarmouth South
2024 spills / hours
5 / 0.4
Long-term average
7.1 spills a year (monitored since 2019)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.5 hours spilling →
Tidal River Yare 6 0.5 up 20% 100%
Southend - Belton Gardens PS
Overflow on sewer network
Company site name
SOUTHEND-HAMLET CT RD CSO
EA ID / permit
AWS01167 · S/WR79
Outlet location
TQ8660085180 (OS grid reference) · View on Apple Maps
WFD catchment
THAMES LOWER (GB530603911401)
Bathing water
Southend Westcliff Bay
2024 spills / hours
2 / 0.5
Long-term average
2.0 spills a year (monitored since 2024)
Investigation
Bathing Water and/or Shellfish Water investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.5 hours spilling →
Thames Estuary 2 0.5 no change 100%
Hunstanton South End Road TPS
Storm discharge at pumping station
Company site name
Hunstanton South End Road Terminal Pumping Station
EA ID / permit
AWS01565 · AECCS660/10416
Outlet location
TF6600040160 (OS grid reference) · View on Apple Maps
WFD catchment
Wash Outer (GB640523160000)
Bathing water
Hunstanton Main Beach
2024 spills / hours
2 / 1.5
Long-term average
1.5 spills a year (monitored since 2024)
Investigation
No investigation activity in reporting period
Improvement
Bathing Water and/or Shellfish Water improvement ongoing
Volume & pollution
Estimate from 0.5 hours spilling →
The Wash 1 0.5 down 50% 100%
Boston Church Road PS
Storm discharge at pumping station
Company site name
Boston Church Road Pumping Station
EA ID / permit
AWS00098 · AW3NFF988
Outlet location
TF3344043530 (OS grid reference) · View on Apple Maps
WFD catchment
Maud Foster and Fen Catchwater Drains (GB205030056465)
Shellfish water
West Wash
2024 spills / hours
8 / 7.6
Long-term average
36.4 spills a year (monitored since 2019)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.5 hours spilling →
Maud Foster Drain 2 0.5 down 75% 99%
Hitchin Water Recycling Centre
Storm tank at sewage works
Sewage works
Hitchin
Company site name
HITCHIN STW
EA ID / permit
AWS00601 · AW1NF2464
Outlet location
TL1862031240 (OS grid reference) · View on Apple Maps
WFD catchment
Hiz (DS Hitchin) (GB105033037700)
2024 spills / hours
44 / 369
Long-term average
25.7 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
UWWTR improvement ongoing
Volume & pollution
Estimate from 0.5 hours spilling →
River Hiz 3 0.5 down 93% 100%
Pytchley STW
Inlet overflow at sewage works
Sewage works
Pytchley
EA ID / permit
AWS01020 · AW5NF566
Outlet location
SP8631174069 (OS grid reference) · View on Apple Maps
WFD catchment
Pytchley Brook (GB105032045110)
2024 spills / hours
4 / 24
Long-term average
8.8 spills a year (monitored since 2022)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.4 hours spilling →
The Pytchley Brook Trib of Ise 5 0.4 up 25% 100%
Everton STW
Storm tank at sewage works
Sewage works
Everton
EA ID / permit
AWS00419 · AWCNF1068
Outlet location
TL1794052510 (OS grid reference) · View on Apple Maps
WFD catchment
Stone Brook (GB105033038190)
2024 spills / hours
1 / 0.1
Long-term average
1.0 spills a year (monitored since 2023)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.4 hours spilling →
Stone Brook / River Gt Ouse 1 0.4 no change 100%
Turvey (Cottages) STW
Storm tank at sewage works
Sewage works
Turvey
Company site name
TURVEY-COTTAGE/N BLOVIL R STW
EA ID / permit
AWS01409 · AWCNF2089
Outlet location
SP9382051840 (OS grid reference) · View on Apple Maps
WFD catchment
Ouse (Newport Pagnell to Roxton) (GB105033047923)
2024 spills / hours
43 / 60
Long-term average
13.0 spills a year (monitored since 2022)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.3 hours spilling →
River Great Ouse Nt 3 0.3 down 93% 100%
Sudbury Bailey & Coates CSO
Overflow on sewer network
Company site name
Sudbury Bailey and Coates Combined Sewer Overflow
EA ID / permit
AWS01332 · ASENF1728
Outlet location
TL8730040870 (OS grid reference) · View on Apple Maps
WFD catchment
Stour (Wixoe - Lamarsh) (GB105036040941)
Bathing water
Friars Meadow, River Stour
2024 spills / hours
14 / 3.8
Long-term average
13.0 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 0.3 hours spilling →
R Stour 2 0.3 down 86% 100%
Clacton Golf Green Road Jaywick CSO
Overflow on sewer network
Company site name
Clacton Golf Green Road Jaywick Combined Sewer Overflow
EA ID / permit
AWS00237 · ASETS3332/12240
Outlet location
TM1530013590 (OS grid reference) · View on Apple Maps
WFD catchment
Essex (GB650503520001)
Bathing water
Jaywick
2024 spills / hours
7 / 1.8
Long-term average
8.4 spills a year (monitored since 2019)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.3 hours spilling →
The North Sea 2 0.3 down 71% 100%
Haddenham Sewage Treatment Works
Inlet overflow at sewage works
Sewage works
Haddenham
Company site name
HADDENHAM WRC
EA ID / permit
AWS00543 · AECNF1089
Outlet location
TL4690074140 (OS grid reference) · View on Apple Maps
WFD catchment
Old West River (GB205033043375)
2024 spills / hours
3 / 1.5
Long-term average
1.0 spills a year (monitored since 2022)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.3 hours spilling →
Aldreth Canal 1 0.3 down 67% 100%
Filgrave Sewage Treatment Works
Storm tank at sewage works
Sewage works
Filgrave
Company site name
FILGRAVE STW
EA ID / permit
AWS00436 · AW1NF3012
Outlet location
SP8690048350 (OS grid reference) · View on Apple Maps
WFD catchment
Ouse (Newport Pagnell to Roxton) (GB105033047923)
2024 spills / hours
15 / 161
Long-term average
8.0 spills a year (monitored since 2024)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.3 hours spilling →
Tributary River Great Ouse Nt 1 0.3 down 93% 100%
Sawston STW
Storm tank at sewage works
Sewage works
Sawston
EA ID / permit
AWS01096 · ASCNF1186
Outlet location
TL4690050620 (OS grid reference) · View on Apple Maps
WFD catchment
Cam (Audley End to Stapleford) (GB105033037590)
2024 spills / hours
24 / 378
Long-term average
14.6 spills a year (monitored since 2021)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.3 hours spilling →
Tributary River Cam Nt 1 0.3 down 96% 100%
Baffin Close SSO Rothwell
Overflow on sewer network
Company site name
ROTHWELL-BAFFIN CLOSE SSO
EA ID / permit
AWS00042 · AW5NF1799
Outlet location
SP8225080780 (OS grid reference) · View on Apple Maps
WFD catchment
Slade Brook (GB105032045170)
2024 spills / hours
15 / 13
Long-term average
8.0 spills a year (monitored since 2024)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.3 hours spilling →
Slade Brook 1 0.3 down 93% 100%
Grafton Street SSO
Overflow on sewer network
Company site name
NORTHAMPTON - GRAFTON STREET SSO
EA ID / permit
AWS00474 · AW5NF1862
Outlet location
SP7478061000 (OS grid reference) · View on Apple Maps
WFD catchment
Brampton Branch - Lower (GB105032045390)
2024 spills / hours
81 / 339
Long-term average
41.0 spills a year (monitored since 2024)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.3 hours spilling →
Trib River Nene 1 0.3 down 99% 100%
Kings Lynn-Highgate CSO
Overflow on sewer network
Company site name
KINGS LYNN-HIGHGATE OV
EA ID / permit
AWS00693 · AECNF11032
Outlet location
TF6241020210 (OS grid reference) · View on Apple Maps
WFD catchment
Gaywood River (GB105033047680)
2024 spills / hours
22 / 61
Long-term average
11.8 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.3 hours spilling →
Gaywood River 1 0.3 down 95% 100%
Drury La PS
Storm discharge at pumping station
Company site name
WICKEN-DRURY LANE SP
EA ID / permit
AWS00356 · AECNF797/11000
Outlet location
TL5726071310 (OS grid reference) · View on Apple Maps
WFD catchment
Ely Ouse (South Level) (GB205033000070)
2024 spills / hours
26 / 305
Long-term average
14.8 spills a year (monitored since 2021)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.3 hours spilling →
trib of Soham Lode 1 0.3 down 96% 100%
Yardley Hastings STW PS
Storm discharge at pumping station
Company site name
YARDLEY HASTINGS WORKS SP
EA ID / permit
AWS01550 · AWNNF13311
Outlet location
SP8668057430 (OS grid reference) · View on Apple Maps
WFD catchment
Grendon Brook (GB105032045040)
2024 spills / hours
9 / 163
Long-term average
21.6 spills a year (monitored since 2021)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.3 hours spilling →
Grendon Brook 1 0.3 down 89% 100%
Foston PS Foston
Storm discharge at pumping station
Company site name
FOSTON SP
EA ID / permit
AWS00448 · AWNNF13421
Outlet location
SK8592042340 (OS grid reference) · View on Apple Maps
WFD catchment
Ease Drain (GB105030056730)
2024 spills / hours
3 / 11
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 0.3 hours spilling →
Unnamed Drain 1 0.3 down 67% 100%
Kings Lynn - Samphire Place PS
Storm discharge at pumping station
Company site name
Kings Lynn - Samphire Place Pumping Station
EA ID / permit
AWS00685 · AECNF10468
Outlet location
TF6123019850 (OS grid reference) · View on Apple Maps
WFD catchment
GREAT OUSE (GB530503300300)
2024 spills / hours
3 / 1.5
Long-term average
2.4 spills a year (monitored since 2021)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.3 hours spilling →
West Lynn Drain 1 0.3 down 67% 100%
Knapwell Pumping Station
Storm discharge at pumping station
Company site name
KNAPWELL-SP
EA ID / permit
AWS00705 · AWCNF11492
Outlet location
TL3341062400 (OS grid reference) · View on Apple Maps
WFD catchment
Fen Drayton Drain (GB105033042740)
2024 spills / hours
15 / 154
Long-term average
5.8 spills a year (monitored since 2021)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.3 hours spilling →
Trib of Connington Brook 1 0.3 down 93% 100%
Poundon Terminal PS
Storm discharge at pumping station
Company site name
POUNDON STW
EA ID / permit
AWS01009 · AW1NF2277
Outlet location
SP6477025560 (OS grid reference) · View on Apple Maps
WFD catchment
Padbury Brook (GB105033038210)
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 0.3 hours spilling →
Poundon Brook Nt 1 0.3 up from 0 100%
Sleaford - St Giles Avenue SPS
Storm discharge at pumping station
Company site name
CSO and EO at Sleaford - St. Giles Avenue SP
EA ID / permit
AWS01143 · ANNNF2608
Outlet location
TF0745045980 (OS grid reference) · View on Apple Maps
WFD catchment
Slea (GB105030056670)
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 0.3 hours spilling →
Dyke to River Slea 1 0.3 up from 0 100%
Thetford - Hayling Path PS
Storm discharge at pumping station
Company site name
THETFORD-HAYLING PATH SP
EA ID / permit
AWS01363 · AECNF11042
Outlet location
TL8672083140 (OS grid reference) · View on Apple Maps
WFD catchment
Little Ouse River (GB105033043400)
2024 spills / hours
0 / 0.0
Long-term average
1.2 spills a year (monitored since 2021)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.3 hours spilling →
River Little Ouse 1 0.3 up from 0 100%
Point Road Pumping Station
Storm discharge at pumping station
Company site name
CANVEY-POINT RD SP
EA ID / permit
AWS01000 · ASETS16193
Outlet location
TQ8159083300 (OS grid reference) · View on Apple Maps
WFD catchment
THAMES LOWER (GB530603911401)
2024 spills / hours
1 / 4.3
Long-term average
2.0 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 0.3 hours spilling →
River Thames 1 0.3 no change 100%
S Benfleet- Hall Farm Road PS
Storm discharge at pumping station
Company site name
S BENFLEET-HALL FARM RD SP
EA ID / permit
AWS01085 · EPRNB3199DJ
Outlet location
TQ7758086230 (OS grid reference) · View on Apple Maps
WFD catchment
THAMES LOWER (GB530603911401)
2024 spills / hours
29 / 29
Long-term average
30.0 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 0.3 hours spilling →
Common Watercourse No 7 1 0.3 down 97% 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.