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
Southend - Rochford Road CSO
Overflow on sewer network
Company site name
Southend - Rochford Road CSO
EA ID / permit
AWS01188 · AW2NFE05483
Outlet location
TQ8750088760 (OS grid reference) · View on Apple Maps
WFD catchment
Prittle Brook (GB105037028730)
2024 spills / hours
2 / 1.8
Long-term average
3.0 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 →
Trib Prittle Brook 1 0.3 down 50% 100%
Wivenhoe-the Folly CSO
Overflow on sewer network
Company site name
WIVENHOE-THE FOLLY OV
EA ID / permit
AWS01527 · ASETS19247
Outlet location
TM0405021420 (OS grid reference) · View on Apple Maps
WFD catchment
COLNE (GB520503713800)
2024 spills / hours
16 / 119
Long-term average
15.2 spills a year (monitored since 2021)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
Env Act (SODRP) improvement ongoing
Volume & pollution
Estimate from 0.3 hours spilling →
Tidal River Colne 1 0.3 down 94% 100%
Ashline Gr Storm Sewage Overflow
Overflow on sewer network
Company site name
WHITTLESEY-ASHLINE GROVE OV
EA ID / permit
AWS00027 · AW5NF2043
Outlet location
TL2652096530 (OS grid reference) · View on Apple Maps
WFD catchment
Middle Level (GB205033000050)
2024 spills / hours
4 / 3.8
Long-term average
2.5 spills a year (monitored since 2024)
Monitor below 90%
Installation set-up/design issue · Resolved - Nov
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 75% 88%
Attleborough Norwich Road PS
Storm discharge at pumping station
Company site name
Attleborough-Norwich Road#2 Pumping Station
EA ID / permit
AWS00034 · AECNF11045
Outlet location
TM0571096140 (OS grid reference) · View on Apple Maps
WFD catchment
Thet (US Swangey Fen) (GB105033047830)
2024 spills / hours
2 / 13
Long-term average
1.7 spills a year (monitored since 2020)
Monitor below 90%
Telemetry or data archiving failure / issue · Resolved - Jul
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.3 hours spilling →
culverted tributary R Thet 1 0.3 down 50% 44%
Cold Ashby CSO
Overflow on sewer network
Company site name
COLD ASHBY SSO
EA ID / permit
AWS00266 · AWNNF13917
Outlet location
SP6552076040 (OS grid reference) · View on Apple Maps
WFD catchment
Hollowell Arm of Spratton Brook (GB105032045510)
2024 spills / hours
17 / 16
Long-term average
7.0 spills a year (monitored since 2021)
Monitor below 90%
Power failure / issue · Resolved - Aug
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.3 hours spilling →
Trib. of Spratton Brook 1 0.3 down 94% 81%
Peterborough-Werrton Lincoln Road
Overflow on sewer network
Company site name
Lincoln Road, Peterborough
EA ID / permit
AWS00991 · AW5NF1818
Outlet location
TF1689002750 (OS grid reference) · View on Apple Maps
WFD catchment
Folly River (including Werrington and Marholm Brooks) (GB105031050560)
2024 spills / hours
4 / 7.5
Long-term average
2.0 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 0.3 hours spilling →
Werrington Brook 1 0.3 down 75% 86%
Station Rd Kelvedon
Overflow on sewer network
Company site name
KELVEDON-EASTERFORD RD SO
EA ID / permit
AWS01282 · AW2NFC185
Outlet location
TL8633019360 (OS grid reference) · View on Apple Maps
WFD catchment
Blackwater (Combined Essex) (GB105037041160)
2024 spills / hours
4 / 2.0
Long-term average
2.5 spills a year (monitored since 2024)
Monitor below 90%
Comms failure / issue · Resolved - Jul
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.3 hours spilling →
Blackwater (Combined Essex) 1 0.3 down 75% 41%
Wakering Common TPS via Havengore
Other storm discharge asset type
Company site name
WAKERING COMMON-HAVENGORE TPS
EA ID / permit
AWS01429 · ASETF12389
Outlet location
TQ9683088400 (OS grid reference) · View on Apple Maps
WFD catchment
CROUCH (GB520503704100)
2024 spills / hours
2 / 0.5
Long-term average
1.5 spills a year (monitored since 2024)
Monitor below 90%
Telemetry or data archiving failure / issue · Resolved - Nov
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.3 hours spilling →
Havengore Creek, R Roach 1 0.3 down 50% 88%
Park Street CSO
Overflow on sewer network
Company site name
Park Street CSO
EA ID / permit
AWS01555 · AW2NF/E03779/1/1
Outlet location
TL6115030430 (OS grid reference) · View on Apple Maps
WFD catchment
Chelmer (u/s Gt. Easton) (GB105037041220)
2024 spills / hours
6 / 1.5
Long-term average
3.5 spills a year (monitored since 2024)
Monitor below 90%
Power failure / issue · Scheduled
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.3 hours spilling →
Trib of the River Chelmer 1 0.3 down 83% 42%
East Harling STW
Storm tank at sewage works
Sewage works
East Harling
EA ID / permit
AWS00379 · AECNF1062
Outlet location
TM0104088040 (OS grid reference) · View on Apple Maps
WFD catchment
Whittle (GB105033043390)
2024 spills / hours
7 / 73
Long-term average
4.2 spills a year (monitored since 2021)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
UWWTR improvement ongoing
Volume & pollution
Estimate from 0.3 hours spilling →
River Whittle Nt 1 0.3 down 86% 100%
Colchester - Shearwater Mews CSO
Overflow on sewer network
Company site name
COLCHESTER-SHEARWATER MEWS OV
EA ID / permit
AWS00254 · ASENF19250
Outlet location
TM0317025850 (OS grid reference) · View on Apple Maps
WFD catchment
Salary Brook (GB105037041320)
2024 spills / hours
0 / 0.0
Long-term average
0.4 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 0.3 hours spilling →
Salary Brook 1 0.3 up from 0 100%
Lower Church Road
Overflow on sewer network
Company site name
BENFLEET LOWER CHURCH RD CSO
EA ID / permit
AWS00782 · ASENF15692
Outlet location
TQ7659089320 (OS grid reference) · View on Apple Maps
WFD catchment
Crouch (A129 - Wickford) (GB105037028540)
2024 spills / hours
3 / 5.3
Long-term average
2.3 spills a year (monitored since 2023)
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 →
Trib of the River Crouch 1 0.3 down 67% 99%
Sible Hedingham - Alderford St CSO
Overflow on sewer network
Company site name
Sible Hedingham -Alderford Street CSO
EA ID / permit
AWS01131 · AW2NFE36066
Outlet location
TL7858033900 (OS grid reference) · View on Apple Maps
WFD catchment
Colne (Gt. Yeldham - Doe's Corner) (GB105037041260)
2024 spills / hours
6 / 4.3
Long-term average
10.7 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 Colne 1 0.3 down 83% 99%
Southend - Belton Gardens PS
Overflow on sewer network
Company site name
SOUTHEND ARCHER CL CSO
EA ID / permit
AWS01183 · 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
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 0.3 hours spilling →
Thames Estuary 1 0.3 up from 0 100%
Southend 21-27 Shakespeare Ave CSO
Overflow on sewer network
Company site name
Southend - 21-27 Shakespeare Avenue Combined Sewer Avenue
EA ID / permit
AWS01189 · AW2NFE18768
Outlet location
TQ8710086900 (OS grid reference) · View on Apple Maps
WFD catchment
Prittle Brook (GB105037028730)
2024 spills / hours
0 / 0.0
Long-term average
0.2 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 0.3 hours spilling →
Prittle Brook 1 0.3 up from 0 100%
Sports Centre Mill Rd.
Overflow on sewer network
Company site name
COLCHESTER-MALDON RD OV
EA ID / permit
AWS01218 · AW2NFC293
Outlet location
TM0060028888 (OS grid reference) · View on Apple Maps
WFD catchment
Salary Brook (GB105037041320)
2024 spills / hours
1 / 0.3
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 0.3 hours spilling →
Tendring Stream 1 0.3 no change 100%
Sports Centre Mill Rd.
Overflow on sewer network
Company site name
COLCHESTER-BALKERNE HILL OV
EA ID / permit
AWS01220 · AW2NFC295
Outlet location
TM0060028888 (OS grid reference) · View on Apple Maps
WFD catchment
Salary Brook (GB105037041320)
2024 spills / hours
7 / 3.3
Long-term average
4.0 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 0.3 hours spilling →
Tendring Stream 1 0.3 down 86% 100%
Corton - Church Lane TPS
Storm discharge at pumping station
Company site name
CORTON-CHURCH LANE SM
EA ID / permit
AWS00279 · ASECS15627
Outlet location
TM5443097860 (OS grid reference) · View on Apple Maps
WFD catchment
Norfolk East (GB650503520003)
2024 spills / hours
3 / 2.5
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 0.3 hours spilling →
The North Sea 1 0.3 down 67% 100%
The Overflow at PS
Storm discharge at pumping station
Company site name
HENGRAVE-OFF LACKFORD RD SP
EA ID / permit
AWS01361 · AW1NF870
Outlet location
TL8250069000 (OS grid reference) · View on Apple Maps
WFD catchment
Lark (Abbey Gardens to Mildenhall) (GB105033043051)
2024 spills / hours
24 / 177
Long-term average
12.5 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 →
Trib River Lark 1 0.3 down 96% 100%
83 Church Street CSO
Overflow on sewer network
Company site name
BURTON LATIMER 83CHURCH ST SSO
EA ID / permit
AWS00005 · AWNNF13858
Outlet location
SP9037074740 (OS grid reference) · View on Apple Maps
WFD catchment
Ise - Lower (GB105032045140)
2024 spills / hours
5 / 1.5
Long-term average
3.0 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 Tributary of River Ise 1 0.3 down 80% 95%
Desborough-Rushton Road SSO
Overflow on sewer network
Company site name
DESBOROUGH-RUSHTON RD SSO
EA ID / permit
AWS00335 · AW5NF1887
Outlet location
SP8163083100 (OS grid reference) · View on Apple Maps
WFD catchment
Ise - Upper (GB105032045200)
2024 spills / hours
2 / 0.5
Long-term average
3.7 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.3 hours spilling →
River Ise 1 0.3 down 50% 97%
Grendon Half Moon
Overflow on sewer network
Company site name
GRENDON-HALF MOON SSO
EA ID / permit
AWS00523 · AWNNF13848
Outlet location
SP8808060870 (OS grid reference) · View on Apple Maps
WFD catchment
Grendon Brook (GB105032045040)
2024 spills / hours
8 / 8.8
Long-term average
4.5 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 →
Grendon Brook 1 0.3 down 88% 98%
Guilsborough SSO
Overflow on sewer network
Company site name
GUILSBOROUGH CSO
EA ID / permit
AWS00539 · AWCNF13954
Outlet location
SP6928071980 (OS grid reference) · View on Apple Maps
WFD catchment
Hollowell Arm of Spratton Brook (GB105032045510)
2024 spills / hours
17 / 8.8
Long-term average
9.0 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 of Spratton Brook 1 0.3 down 94% 100%
Hardwick Meadow Fields CSO
Overflow on sewer network
Company site name
Hardwick Meadow Fields Combined Sewer Overflow
EA ID / permit
AWS00558 · EPRSB3696AM
Outlet location
SP8527069840 (OS grid reference) · View on Apple Maps
WFD catchment
Hardwick Brook (GB105032045100)
2024 spills / hours
5 / 6.3
Long-term average
8.2 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 →
Trib of the River Ise 1 0.3 down 80% 99%
Kings Lynn Pagestair Lane CSO
Overflow on sewer network
Company site name
Kings Lynn Page Stair Lane Combined Sewer Overflow
EA ID / permit
AWS00687 · EPRNB3292AG
Outlet location
TF6148020470 (OS grid reference) · View on Apple Maps
WFD catchment
GREAT OUSE (GB530503300300)
2024 spills / hours
0 / 0.0
Long-term average
1.3 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.3 hours spilling →
Tidal River Great Ouse 1 0.3 up from 0 98%
Little Downham California Hse CSO
Overflow on sewer network
Company site name
LT DOWNHAM-CALIFORNIA SSO
EA ID / permit
AWS00748 · AECNF11457
Outlet location
TL5315084600 (OS grid reference) · View on Apple Maps
WFD catchment
Ely Ouse (South Level) (GB205033000070)
2024 spills / hours
11 / 11
Long-term average
6.0 spills a year (monitored since 2021)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.3 hours spilling →
Trib of Hundred Foot River 1 0.3 down 91% 100%
Ramsgate Road CSO
Overflow on sewer network
Company site name
Ramsgate Road combined sewer overflow
EA ID / permit
AWS01028 · EPRGB3790RQ
Outlet location
TF3353087820 (OS grid reference) · View on Apple Maps
WFD catchment
Louth Canal (GB104029061990)
2024 spills / hours
4 / 1.3
Long-term average
6.7 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.3 hours spilling →
River Lud/Louth Canal 1 0.3 down 75% 95%
Raunds - Rotten Row/High Street CSO
Overflow on sewer network
Company site name
RAUNDS-ROTTEN ROW/HIGH STREET
EA ID / permit
AWS01029 · AW5NF645
Outlet location
SP9986072950 (OS grid reference) · View on Apple Maps
WFD catchment
Hog Dyke (GB105032045120)
2024 spills / hours
2 / 0.8
Long-term average
5.4 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 →
Hog Dyke 1 0.3 down 50% 100%
Sleaford Mh 53 Carr Street
Overflow on sewer network
Company site name
SLEAFORD MH 53 CARR ST
EA ID / permit
AWS01144 · ANNNF1751
Outlet location
TF0727045890 (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 →
Old River Slea 1 0.3 up from 0 100%
Southend - Belton Gardens PS
Overflow on sewer network
Company site name
SOUTHEND-LEIGH HILL CSO
EA ID / permit
AWS01163 · EPR/AB3756TL
Outlet location
TQ8414085540 (OS grid reference) · View on Apple Maps
WFD catchment
THAMES LOWER (GB530603911401)
Bathing water
Leigh Bell Wharf
2024 spills / hours
7 / 2.5
Long-term average
4.0 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 0.3 hours spilling →
Leigh Creek 1 0.3 down 86% 100%
Southend - Belton Gardens PS
Overflow on sewer network
Company site name
SOUTHEND-HARTINGTON RD BF
EA ID / permit
AWS01177 · S/WR85
Outlet location
TQ8881085010 (OS grid reference) · View on Apple Maps
WFD catchment
THAMES LOWER (GB530603911401)
Bathing water
Southend Jubilee; Southend Three Shells
2024 spills / hours
1 / 0.3
Long-term average
1.0 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 0.3 hours spilling →
Thames Estuary 1 0.3 no change 100%
Oundle New Road Terminal PS
Storm discharge at pumping station
Company site name
Oundle New Road Terminal Pumping Station
EA ID / permit
AWS00958 · AWNNF2492
Outlet location
TL0424089090 (OS grid reference) · View on Apple Maps
WFD catchment
Nene - Islip to tidal (GB105032050381)
2024 spills / hours
1 / 0.7
Long-term average
8.7 spills a year (monitored since 2019)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.2 hours spilling →
River Nene 2 0.2 up 100% 100%
Oundle Water Recycling Centre
Storm tank at sewage works
Sewage works
Oundle
Company site name
Oundle Water Recycling Centre
EA ID / permit
AWS00959 · AW5NF809
Outlet location
TL0407089710 (OS grid reference) · View on Apple Maps
WFD catchment
Nene - Islip to tidal (GB105032050381)
2024 spills / hours
2 / 0.2
Long-term average
47.1 spills a year (monitored since 2019)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
Env Act (SODRP) improvement ongoing
Volume & pollution
Estimate from 0.2 hours spilling →
River Nene 1 0.2 down 50% 100%
Rowhedge - High Street Pumping St.
Storm discharge at pumping station
Company site name
Rowhedge - High Street Pumping Station
EA ID / permit
AWS01068 · AW2NFE06884
Outlet location
TM0296021910 (OS grid reference) · View on Apple Maps
WFD catchment
COLNE (GB520503713800)
Shellfish water
Colne
2024 spills / hours
2 / 0.3
Long-term average
1.9 spills a year (monitored since 2019)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.2 hours spilling →
Birch Brook 2 0.2 no change 100%
Southwold Station Road PS
Storm discharge at pumping station
Company site name
Southwold Station Road Pumping Station
EA ID / permit
AWS01204 · AW4NF1762
Outlet location
TM5034076730 (OS grid reference) · View on Apple Maps
WFD catchment
BLYTH (S) (GB510503503700)
2024 spills / hours
3 / 1.6
Long-term average
17.1 spills a year (monitored since 2019)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.1 hours spilling →
Buss Creek 1 0.1 down 67% 100%
Royal Norfolk & Suffolk Yacht Club
Storm discharge at pumping station
Company site name
Lowestoft Royal Norfolk & Suffolk Yacht Club Pumping Station
EA ID / permit
AWS01070 · AW4TS12090
Outlet location
TM5479092690 (OS grid reference) · View on Apple Maps
WFD catchment
BURE & WAVENEY & YARE & LOTHING (GB510503410700)
Bathing water
Lowestoft (North of Claremont Pier)
2024 spills / hours
0 / 0.0
Long-term average
44.6 spills a year (monitored since 2019)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.1 hours spilling →
North Sea via Outer Harbour 2 0.1 up from 0 100%
Aldborough Water Recycling Centre
Storm tank at sewage works
Sewage works
Aldborough
Company site name
ALDBOROUGH-THWAITE HILL FM STW
EA ID / permit
AWS00011 · AEENF/12058
Outlet location
TG1858033590 (OS grid reference) · View on Apple Maps
WFD catchment
Scarrow Beck (GB105034055740)
2024 spills / hours
6 / 28
Long-term average
5.3 spills a year (monitored since 2022)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
UWWTR improvement ongoing
Volume & pollution
Estimate from 0.1 hours spilling →
Scarrow Beck River Bure 2 0.1 down 67% 100%
Brightlingsea Station Road CSO
Overflow on sewer network
Company site name
Brightlingsea Overflow (Western Road) Community Centre
EA ID / permit
AWS00146 · ASENF3270/12167
Outlet location
TM0812016640 (OS grid reference) · View on Apple Maps
WFD catchment
Colne Essex (GB520503713800)
Bathing water
Brightlingsea
Shellfish water
Colne
2024 spills / hours
3 / 0.1
Long-term average
13.1 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 0.1 hours spilling →
The West Dyke 2 0.1 down 33% 100%
Cromer Promenade Terminal PS
Storm discharge at pumping station
Company site name
Cromer Promenade Terminal Pumping Station
EA ID / permit
AWS00297 · AEECS868/12071
Outlet location
TG2155042440 (OS grid reference) · View on Apple Maps
WFD catchment
Norfolk East (GB650503520003)
Bathing water
Cromer
2024 spills / hours
2 / 0.2
Long-term average
1.9 spills a year (monitored since 2019)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.1 hours spilling →
The North Sea 1 0.1 down 50% 100%
Brigg Gas House Lane TPS
Storm discharge at pumping station
Company site name
Brigg Gas House Lane Terminal Pumping Station
EA ID / permit
AWS00139 · ANNNF13096
Outlet location
SE9975007330 (OS grid reference) · View on Apple Maps
WFD catchment
Ancholme from Bishopbridge to the Humber (GB104029067520)
2024 spills / hours
0 / 0.0
Long-term average
3.4 spills a year (monitored since 2019)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.0 hours spilling →
Old River Ancholme 1 0.0 up from 0 100%
Burnham Market Water Recycling Ctr
Storm tank at sewage works
Sewage works
Burnham Market Water Recycling Ctr
Company site name
Burnham Market Water Recycling Centre
EA ID / permit
AWS00179 · AEENF1265
Outlet location
TF8453042380 (OS grid reference) · View on Apple Maps
WFD catchment
Burn (GB105034055750)
Shellfish water
Norton Creek
2024 spills / hours
92 / 110
Long-term average
49.3 spills a year (monitored since 2019)
Investigation
Bathing Water and/or Shellfish Water investigation ongoing
Improvement
Env Act (SODRP) improvement ongoing
Volume & pollution
Estimate from 0.0 hours spilling →
The River Burn 1 0.0 down 99% 100%
Fenside Road Pumping Station
Storm discharge at pumping station
Company site name
Boston Fenside Road Pumping Station
EA ID / permit
AWS00432 · ANNNF13728
Outlet location
TF3145044510 (OS grid reference) · View on Apple Maps
WFD catchment
Black Sluice IDB draining to the South Forty Foot Drain (GB205030051515)
Shellfish water
West Wash
2024 spills / hours
0 / 0.0
Long-term average
4.6 spills a year (monitored since 2019)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 0.0 hours spilling →
North Forty Foot Drain 1 0.0 up from 0 100%
Kirton - Drunkards Lane WRC
Storm tank at sewage works
Sewage works
Kirton Drunkards Lane
Company site name
KIRTON-DRUNKARDS L STW
EA ID / permit
AWS00702 · ASENF/938/12042
Outlet location
TM2864039700 (OS grid reference) · View on Apple Maps
WFD catchment
DEBEN (GB520503503900)
Shellfish water
Deben
2024 spills / hours
23 / 402
Long-term average
12.0 spills a year (monitored since 2019)
Investigation
Bathing Water and/or Shellfish Water investigation ongoing
Improvement
UWWTR improvement ongoing
Volume & pollution
Estimate from 0.0 hours spilling →
Kirton Stream 1 0.0 down 96% 100%
Clacton Park Road/Vicarage Grd CSO
Overflow on sewer network
Company site name
Clacton - Park Road/Vicarage Gardens CSO
EA ID / permit
AWS00238 · ASECS12232
Outlet location
TM1710013910 (OS grid reference) · View on Apple Maps
WFD catchment
Essex (GB650503520001)
Bathing water
Clacton Beach Martello Tower
2024 spills / hours
3 / 0.4
Long-term average
2.0 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 0.0 hours spilling →
The North Sea 1 0.0 down 67% 100%
Abthorpe Terminal Pumping Station
Storm discharge at pumping station
Company site name
ABTHORPE TPS
EA ID / permit
AWS00009 · AW1NF947
Outlet location
SP6419046470 (OS grid reference) · View on Apple Maps
WFD catchment
Tove (US Greens Norton) (GB105033038260)
2024 spills / hours
2 / 7.0
Long-term average
0.7 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
The River Tove 0 0.0 down 100% 100%
Aldgate/Ketton Pumping Station
Storm discharge at pumping station
Company site name
KETTON-ALDGATE TPS
EA ID / permit
AWS00013 · AW5NF1791
Outlet location
SK9830004600 (OS grid reference) · View on Apple Maps
WFD catchment
Chater - Lower (GB105031050440)
2024 spills / hours
0 / 0.0
Long-term average
0.5 spills a year (monitored since 2022)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
River Chater 0 0.0 no change 100%
Anwick-River Lane TPS
Storm discharge at pumping station
Company site name
ANWICK-RIVER LA TPS
EA ID / permit
AWS00019 · ANNNF13375
Outlet location
TF1147050140 (OS grid reference) · View on Apple Maps
WFD catchment
Slea (GB105030056670)
2024 spills / hours
1 / 3.5
Long-term average
9.5 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Unnamed Tributary Anwick Soke 0 0.0 down 100% 100%
Ashline Terminal Pumping Station
Storm discharge at pumping station
Company site name
WHITTLESEY-ASHLINE TPS
EA ID / permit
AWS00028 · AECNF11027
Outlet location
TL2709096270 (OS grid reference) · View on Apple Maps
WFD catchment
Middle Level (GB205033000050)
2024 spills / hours
0 / 0.0
Long-term average
0.0 spills a year (monitored since 2024)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
tributary Whittlesey Dyke 0 0.0 no change 100%
Attleborough
Storm discharge at pumping station
Company site name
ATTLEBOROUGH-NORWICH RD #1 SP
EA ID / permit
AWS00033 · AW1NF297
Outlet location
TM0571096140 (OS grid reference) · View on Apple Maps
WFD catchment
Thet (US Swangey Fen) (GB105033047830)
2024 spills / hours
0 / 0.0
Long-term average
1.7 spills a year (monitored since 2023)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Upper River Crouch 0 0.0 no change 100%
Attleborough PS
Storm discharge at pumping station
Company site name
ATTLEBOROUGH-NEW ROAD TPS
EA ID / permit
AWS00035 · AW1NF296
Outlet location
TM0440094100 (OS grid reference) · View on Apple Maps
WFD catchment
Buckenham Stream (GB105033043411)
2024 spills / hours
5 / 21
Long-term average
2.5 spills a year (monitored since 2024)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Buckenham Stream 0 0.0 down 100% 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.