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
Briston Water Recycling Centre Storm tank at sewage works Sewage works Briston Company site name BRISTON STW EA ID / permit AWS00151 · AEENF1263 Outlet location TG0732031410 (OS grid reference) · View on Apple Maps WFD catchment Bure (u/s confluence with Scarrow Beck) (GB105034055690) 2024 spills / hours 0 / 0.0 Long-term average 1.3 spills a year (monitored since 2023) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 11 hours spilling →	The River Bure	4	11	up from 0	100%
Woodhall Spa Water Recycling Centre Storm tank at sewage works Sewage works Woodhall Spa Company site name WOODHALL SPA STW EA ID / permit AWS01540 · AW3NFF1067 Outlet location TF1849063500 (OS grid reference) · View on Apple Maps WFD catchment Bucknall Catchwater (GB105030062440) 2024 spills / hours 50 / 512 Long-term average 41.3 spills a year (monitored since 2022) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 11 hours spilling →	Swine Syke	8	11	down 84%	99%
Marston Station Rd TPS Storm discharge at pumping station Company site name MARSTON-STATION ROAD TPS EA ID / permit AWS00824 · AWCNF11325 Outlet location SP9985041180 (OS grid reference) · View on Apple Maps WFD catchment Elstow Brook (US Shortstown) (GB105033038050) 2024 spills / hours 6 / 74 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 11 hours spilling →	Marston Brook	1	11	down 83%	100%
5 SSO at Wellingborough Overflow on sewer network Company site name WELLINGBOROUGH-RAIL STATION SSO EA ID / permit AWS00004 · AW5NF311 Outlet location SP9064068000 (OS grid reference) · View on Apple Maps WFD catchment Ise - Lower (GB105032045140) 2024 spills / hours 71 / 515 Long-term average 22.4 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 11 hours spilling →	Trib River Ise	10	11	down 86%	100%
Billericay Water Recycling Centre Inlet overflow at sewage works Sewage works Billericay Company site name BILLERICAY STW EA ID / permit AWS00090 · AW2NFE05358 Outlet location TQ6989094200 (OS grid reference) · View on Apple Maps WFD catchment Crouch (A129 - Wickford) (GB105037028540) 2024 spills / hours 5 / 1.8 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 11 hours spilling →	Tributary of R.Crouch Nt	5	11	no change	100%
Manningtree(Lawford) STW Storm tank at sewage works Sewage works Manningtree Company site name MANNINGTREE STW EA ID / permit AWS00808 · ASETS12026 Outlet location TM0993032410 (OS grid reference) · View on Apple Maps WFD catchment STOUR (ESSEX) (GB520503613602) Bathing water Manningtree Beach, Stour Estuary 2024 spills / hours 10 / 45 Long-term average 18.3 spills a year (monitored since 2023) Investigation Bathing Water and/or Shellfish Water investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 11 hours spilling →	Wignall Brook Stour Estuary	5	11	down 50%	100%
Fore Street CSO Overflow on sewer network Company site name FRAMLINGHAM-FORE ST SO EA ID / permit AWS00445 · ASENF1636 Outlet location TM2839063350 (OS grid reference) · View on Apple Maps WFD catchment Ore (GB105035045970) 2024 spills / hours 11 / 32 Long-term average 14.7 spills a year (monitored since 2023) Investigation Env Act (SODRP) investigation ongoing, Bathing Water and/or Shellfish Water investigation ongoing Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 11 hours spilling →	River Ore	1	11	down 91%	99%
West Thimbleby PS Storm discharge at pumping station Company site name THIMBLEBY-MAIN ROAD SP EA ID / permit AWS01476 · ANNNF13057 Outlet location TF2335069970 (OS grid reference) · View on Apple Maps WFD catchment Bucknall Catchwater (GB105030062440) 2024 spills / hours 8 / 101 Long-term average 5.0 spills a year (monitored since 2024) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 11 hours spilling →	unnamed ditch tributary Catchw	2	11	down 75%	100%
Creek Road/St.Johns Road CSO Overflow on sewer network Company site name MARCH-CREEK RD/ST JOHNS RD OV EA ID / permit AWS00295 · AECNF11501 Outlet location TL4215096980 (OS grid reference) · View on Apple Maps WFD catchment Middle Level (GB205033000050) 2024 spills / hours 5 / 33 Long-term average 13.0 spills a year (monitored since 2020) Monitor below 90% Power failure / issue · Resolved - Mar Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 11 hours spilling →	The River Nene (Old Course)	2	11	down 60%	86%
Earls Colne Church Hill #3 CSO Overflow on sewer network Company site name Earls Colne Church Hill #3 Combined Sewer Overflow EA ID / permit AWS00370 · ASENF16138 Outlet location TL8617028650 (OS grid reference) · View on Apple Maps WFD catchment Colne (d/s Doe's Corner) (GB105037041330) 2024 spills / hours 39 / 11 Long-term average 24.2 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 11 hours spilling →	Trib of River Colne	17	11	down 56%	99%
Wisbech - Lynn Road TPS Storm discharge at pumping station Company site name WISBECH-LYNN RD TPS EA ID / permit AWS01516 · AW5TS799B Outlet location TF4613009910 (OS grid reference) · View on Apple Maps WFD catchment NENE (GB530503200200) 2024 spills / hours 17 / 42 Long-term average 11.0 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 11 hours spilling →	River Nene	6	11	down 65%	100%
St Giles Church SSO Overflow on sewer network Company site name BLASTON-ST GILES CHURCH SSO EA ID / permit AWS01252 · AW5NF1839 Outlet location SP8027095380 (OS grid reference) · View on Apple Maps WFD catchment Medbourne Brook (GB105031050520) 2024 spills / hours 3 / 3.3 Long-term average 15.0 spills a year (monitored since 2024) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 11 hours spilling →	Trib Medbourne Brook	27	11	up 800%	99%
South Kyme STW Storm tank at sewage works Sewage works South Kyme EA ID / permit AWS01159 · ANNNF13039 Outlet location TF1624049710 (OS grid reference) · View on Apple Maps WFD catchment Kyme Eau (GB105030056710) 2024 spills / hours 0 / 0.0 Long-term average 2.0 spills a year (monitored since 2022) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 11 hours spilling →	Kyme Eau	2	11	up from 0	100%
Wethersfield Water Recycling Centre Storm tank at sewage works Sewage works Wethersfield Company site name Wethersfield Sewage Treatment Works EA ID / permit AWS01484 · AW2NFE00485 Outlet location TL7056030590 (OS grid reference) · View on Apple Maps WFD catchment Pant (GB105037041180) 2024 spills / hours 11 / 57 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 11 hours spilling →	River Pant Nt	3	11	down 73%	100%
Harwich and Dovercourt WRC Storm tank at sewage works Sewage works Harwich And Dovercourt Company site name HARWICH AND DOVERCOURT STW EA ID / permit AWS00566 · ASETS12050 Outlet location TM2255032680 (OS grid reference) · View on Apple Maps WFD catchment STOUR (ESSEX) (GB520503613602) 2024 spills / hours 19 / 143 Long-term average 23.3 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 11 hours spilling →	tidal River Stour	4	11	down 79%	100%
Pitsea WRC Storm tank at sewage works Sewage works Pitsea Company site name PITSEA STW EA ID / permit AWS00994 · CSSC.4457 Outlet location TQ7360086800 (OS grid reference) · View on Apple Maps WFD catchment THAMES LOWER (GB530603911401) 2024 spills / hours 16 / 8.0 Long-term average 17.5 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 11 hours spilling →	Timbermans Creek	19	11	up 19%	100%
Saffron Walden-George Abbey Ov Overflow on sewer network EA ID / permit AWS01088 · ASCNF2319 Outlet location TL5347238368 (OS grid reference) · View on Apple Maps WFD catchment Slade (GB105033037580) 2024 spills / hours 24 / 24 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 11 hours spilling →	The Slade Trib of River Cam	18	11	down 25%	100%
Turvey Station Rd Pumping Station Storm discharge at pumping station Company site name TURVEY-STATION ROAD SP EA ID / permit AWS01411 · AWCNF11811 Outlet location SP9578052200 (OS grid reference) · View on Apple Maps WFD catchment Ouse (Newport Pagnell to Roxton) (GB105033047923) 2024 spills / hours 7 / 134 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 11 hours spilling →	Pictshill Brook, Trib Gt Ouse	7	11	no change	100%
Water Supply Boreholes at Parsonage Overflow on sewer network Company site name HALSTEAD-PARSONS BRIDGE NO 2 EA ID / permit AWS01444 · AW2NFC35 Outlet location TL8160030200 (OS grid reference) · View on Apple Maps WFD catchment Colne (d/s Doe's Corner) (GB105037041330) 2024 spills / hours 19 / 31 Long-term average 13.0 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 10 hours spilling →	River Colne	7	10	down 63%	97%
Storm Overflow at Duck End Overflow on sewer network Company site name WILSTEAD-BEDFORD RD DUCK END EA ID / permit AWS01316 · AW1NF2071 Outlet location TL0605043960 (OS grid reference) · View on Apple Maps WFD catchment Harrowden Brook (GB105033038010) 2024 spills / hours 8 / 44 Long-term average 5.0 spills a year (monitored since 2024) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 10 hours spilling →	Brook Duck End Elstow Brook	2	10	down 75%	99%
Colchester Water Recycling Centre Inlet overflow at sewage works Sewage works Colchester Company site name COLCHESTER STW EA ID / permit AWS00258 · ASETS1046 Outlet location TM0225023610 (OS grid reference) · View on Apple Maps WFD catchment COLNE (GB520503713800) Shellfish water Colne; Pyefleet 2024 spills / hours 18 / 33 Long-term average 13.0 spills a year (monitored since 2024) Investigation Bathing Water and/or Shellfish Water investigation ongoing Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 10 hours spilling →	Colne Estuary	8	10	down 56%	98%
Clophill (Causeway) CSO Overflow on sewer network Company site name CLOPHILL WORKS SP EA ID / permit AWS00249 · AWCNF11064 Outlet location TL0866037830 (OS grid reference) · View on Apple Maps WFD catchment Flit and Ivel Navigation d/s of Shefford (GB105033037790) 2024 spills / hours 23 / 41 Long-term average 8.8 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 10 hours spilling →	River Flit	3	10	down 87%	100%
Dedham Water Recycling Centre Storm tank at sewage works Sewage works Dedham Company site name DEDHAM STW EA ID / permit AWS00323 · ASENF1055 Outlet location TM0598033610 (OS grid reference) · View on Apple Maps WFD catchment Stour (d/s R. Brett) (GB105036041000) 2024 spills / hours 3 / 7.5 Long-term average 22.2 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 10 hours spilling →	Dedham Mill Tail-Trib Rv Stour	2	10	down 33%	100%
School Road PS Storm discharge at pumping station Company site name LT TOTHAM-SCHOOL RD TPS EA ID / permit AWS01108 · AW2NFE06670 Outlet location TL8895011610 (OS grid reference) · View on Apple Maps WFD catchment BLACKWATER (GB520503714000) 2024 spills / hours 17 / 182 Long-term average 9.0 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 10 hours spilling →	Penny's Brook River Blackwater	1	10	down 94%	100%
Downham Market the Hythe Pumping St Storm discharge at pumping station Company site name DOWNHAM MARKET-THE HYTHE SP EA ID / permit AWS00350 · AECNF10447 Outlet location TF6007003300 (OS grid reference) · View on Apple Maps WFD catchment Relief Channel (GB205033047665) 2024 spills / hours 3 / 12 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 10 hours spilling →	the Relief Channel	14	10	up 367%	100%
Lavenham STW Inlet Pumping Station Storm discharge at pumping station Company site name LAVENHAM STW PS EA ID / permit AWS00712 · AW2NFE05470 Outlet location TL9237048590 (OS grid reference) · View on Apple Maps WFD catchment Lavenham Brook (GB105036040770) 2024 spills / hours 15 / 133 Long-term average 8.5 spills a year (monitored since 2024) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 10 hours spilling →	Lavenham Brook	2	10	down 87%	100%
Woodnewton STW Storm tank at sewage works Sewage works Woodnewton EA ID / permit AWS01542 · AW5NF598A Outlet location TL0416094050 (OS grid reference) · View on Apple Maps WFD catchment Willow Brook (Nene) (GB105032050290) 2024 spills / hours – / – Long-term average 20.3 spills a year (monitored since 2022) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 10.0 hours spilling →	Willow Brook	9	10.0		100%
Downham Market STW Inlet overflow at sewage works Sewage works Downham Market EA ID / permit AWS00349 · AECNF1059 Outlet location TF6049004280 (OS grid reference) · View on Apple Maps WFD catchment Relief Channel (GB205033047665) 2024 spills / hours 56 / 450 Long-term average 28.5 spills a year (monitored since 2024) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 9.8 hours spilling →	Trib Flood Relief Channel	1	9.8	down 98%	100%
Grimsby Fish Docks Pumping Station Storm discharge at pumping station Company site name Grimsby Fish Docks Pumping Station EA ID / permit AWS00527 · ANNTS13404 Outlet location TA2884010900 (OS grid reference) · View on Apple Maps WFD catchment Laceby Beck / River Freshney Catchment (to N Sea) (GB104029067530) 2024 spills / hours 33 / 60 Long-term average 35.0 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 9.8 hours spilling →	River Humber	9	9.8	down 73%	100%
Oundle Wharf Overflow on sewer network Company site name OUNDLE-NEW RD SSO EA ID / permit AWS00960 · AW5NF310 Outlet location TL0433088820 (OS grid reference) · View on Apple Maps WFD catchment Nene - Islip to tidal (GB105032050381) 2024 spills / hours 28 / 49 Long-term average 17.5 spills a year (monitored since 2024) Monitor below 90% Telemetry or data archiving failure / issue · Not Applicable - Ongoing investigation Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 9.8 hours spilling →	Oundle Wharf	7	9.8	down 75%	7%
SSO Upper Heyford Overflow on sewer network Company site name UPPER HEYFORD SSO EA ID / permit AWS01250 · AW5NF2152 Outlet location SP6630050000 (OS grid reference) · View on Apple Maps WFD catchment Blakesley Brook (GB105033038280) 2024 spills / hours 17 / 27 Long-term average 13.0 spills a year (monitored since 2024) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 9.8 hours spilling →	Trib River Nene	9	9.8	down 47%	100%
Flitwick STW Storm tank at sewage works Sewage works Flitwick EA ID / permit AWS00442 · AWCNF2057 Outlet location TL0399036540 (OS grid reference) · View on Apple Maps WFD catchment Running Waters-Steppingley (GB105033037660) 2024 spills / hours 13 / 82 Long-term average 5.3 spills a year (monitored since 2022) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 9.7 hours spilling →	Running Water River Flit	2	9.7	down 85%	100%
Ravensthorpe STW Storm tank at sewage works Sewage works Ravensthorpe EA ID / permit AWS01033 · AW5NF139 Outlet location SP6748069920 (OS grid reference) · View on Apple Maps WFD catchment Ravensthopre arm of Spratton Brook (GB105032045490) 2024 spills / hours 44 / 167 Long-term average 19.3 spills a year (monitored since 2022) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 9.6 hours spilling →	Brampton Branch River Nene	9	9.6	down 80%	100%
East Hanningfield Old Church Rd PS Storm discharge at pumping station Company site name E HANNINGFIELD-OLD CHRCH RD SP EA ID / permit AWS00378 · AW2NFE03174 Outlet location TL7669000600 (OS grid reference) · View on Apple Maps WFD catchment Sandon Brook (West arm) (GB105037028630) 2024 spills / hours 8 / 50 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 9.5 hours spilling →	Trib Sandon Brook	1	9.5	down 88%	100%
Humberston - Tetney Road Sp Storm discharge at pumping station Company site name HUMBERSTON-TETNEY RD SP EA ID / permit AWS00627 · ANNNF2648 Outlet location TA3105004520 (OS grid reference) · View on Apple Maps WFD catchment Waithe Beck lower catchment (to Tetney Lock) (GB104029062100) 2024 spills / hours 2 / 1.8 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 9.5 hours spilling →	un-Named Drain to River Humber	3	9.5	up 50%	100%
Latchingdon Water Recycling Centre Storm tank at sewage works Sewage works Latchingdon Company site name LATCHINGDON STW EA ID / permit AWS00710 · AW2NFE17367 Outlet location TL8799001590 (OS grid reference) · View on Apple Maps WFD catchment BLACKWATER (GB520503714000) 2024 spills / hours 7 / 65 Long-term average 44.8 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 9.5 hours spilling →	Latchington Brook Mundon Crk B	2	9.5	down 71%	99%
Wickham Bridge PS Storm discharge at pumping station Company site name WICKHAM MARKET-BRIDGE THE SP EA ID / permit AWS01497 · ASENF12432 Outlet location TM3065056510 (OS grid reference) · View on Apple Maps WFD catchment Deben (Brandeston Bridge - Melton) (GB105035046310) 2024 spills / hours 22 / 344 Long-term average 13.0 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 9.5 hours spilling →	Tributary of the River Deben	4	9.5	down 82%	100%
Sibbertoft STW Storm tank at sewage works Sewage works Sibbertoft EA ID / permit AWS01130 · AW5NF761 Outlet location SP6729083020 (OS grid reference) · View on Apple Maps WFD catchment Welland - headwaters to conf Jordan (GB105031045630) 2024 spills / hours 121 / 2,542 Long-term average 49.0 spills a year (monitored since 2022) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 9.5 hours spilling →	River Welland	26	9.5	down 79%	99%
The Common Swardeston TPS Storm discharge at pumping station Company site name SWARDESTON-THE COMMON TPS EA ID / permit AWS01357 · AEENF2228 Outlet location TG1967003070 (OS grid reference) · View on Apple Maps WFD catchment Intwood Stream (GB105034051240) 2024 spills / hours 10 / 72 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 9.5 hours spilling →	Main Idb Ditch Trib River Yare	7	9.5	down 30%	100%
Southend - Belton Gardens PS Overflow on sewer network Company site name SOUTHEND-CHURCH ROAD CSO EA ID / permit AWS01174 · EPR/AB3352TF Outlet location TQ8880084990 (OS grid reference) · View on Apple Maps WFD catchment THAMES LOWER (GB530603911401) Bathing water Southend Jubilee; Southend Three Shells 2024 spills / hours 17 / 8.8 Long-term average 17.5 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 9.5 hours spilling →	Thames Estuary	18	9.5	up 6%	100%
Peterborough Road PS Storm discharge at pumping station Company site name EYE-PETERBOROUGH ROAD SP EA ID / permit AWS00988 · AWNNF2804 Outlet location TF2190002200 (OS grid reference) · View on Apple Maps WFD catchment North Level Pumped Areas 2 and 3 (GB205032050385) 2024 spills / hours 16 / 177 Long-term average 11.3 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 9.3 hours spilling →	Trib Cat's Water	5	9.3	down 69%	100%
Billericay P.S. St Agnes Road Storm discharge at pumping station Company site name BILLERICAY-ST AGNES RD SP EA ID / permit AWS00088 · AW2NFE00754 Outlet location TQ6832091030 (OS grid reference) · View on Apple Maps WFD catchment Crouch (Upper) - u/s A129 (GB105037028500) 2024 spills / hours 22 / 184 Long-term average 14.0 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 9.3 hours spilling →	River Crouch	3	9.3	down 86%	100%
Laceby-Caistor Road #1 CSO Overflow on sewer network Company site name LACEBY-CAISTOR ROAD #1 SSO EA ID / permit AWS00708 · ANNNF2284 Outlet location TA2172006480 (OS grid reference) · View on Apple Maps WFD catchment Laceby Beck / River Freshney Catchment (to N Sea) (GB104029067530) 2024 spills / hours 0 / 0.0 Long-term average 31.3 spills a year (monitored since 2020) Monitor below 90% Installation set-up/design issue · Resolved - Oct Investigation Env Act (SODRP) investigation ongoing Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 9.3 hours spilling →	Laceby Beck	1	9.3	up from 0	21%
Hillcrest Ave Overflow on sewer network Company site name Burton Latimer Finedon Road SSO EA ID / permit AWS00596 · AW5NF502 Outlet location SP8980073800 (OS grid reference) · View on Apple Maps WFD catchment Ise - Lower (GB105032045140) 2024 spills / hours 49 / 124 Long-term average 29.0 spills a year (monitored since 2024) Monitor below 90% Power failure / issue · Resolved - Oct Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 9.3 hours spilling →	Outlet No 2 Burton Latimer Bro	9	9.3	down 82%	47%
Norwich - King Street #2 CSO Overflow on sewer network Company site name NORWICH-KING STREET SSO #2 EA ID / permit AWS00928 · EPR/MB3699WS Outlet location TG2366008130 (OS grid reference) · View on Apple Maps WFD catchment Wensum DS Norwich (GB105034055882) 2024 spills / hours 14 / 5.8 Long-term average 15.3 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 9.3 hours spilling →	River Wensum	20	9.3	up 43%	98%
Wash Lane PS Banham Storm discharge at pumping station Company site name BANHAM-WASH LANE SP EA ID / permit AWS01442 · AECNF11068 Outlet location TM0622287642 (OS grid reference) · View on Apple Maps WFD catchment Whittle (GB105033043390) 2024 spills / hours 9 / 23 Long-term average 8.7 spills a year (monitored since 2023) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 9.3 hours spilling →	Tributary River Thet	4	9.3	down 56%	100%
Doddinghurst WRC Storm tank at sewage works Sewage works Doddinghurst Company site name DODDINGHURST-STW EA ID / permit AWS00343 · ASENF1057 Outlet location TQ6062098940 (OS grid reference) · View on Apple Maps WFD catchment Doddinghurst Brook (GB105037028720) 2024 spills / hours 51 / 556 Long-term average 38.3 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 9.1 hours spilling →	River Wid Nt	2	9.1	down 96%	100%
Melton Contable - Burgh Beck PS Storm discharge at pumping station Company site name MELTON CONSTABLE-BURGH BECK SP EA ID / permit AWS00834 · AEENF12431 Outlet location TG0479033320 (OS grid reference) · View on Apple Maps WFD catchment Glaven (GB105034055780) 2024 spills / hours 13 / 48 Long-term average 5.7 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 9.0 hours spilling →	Trib of River Glaven	4	9.0	down 69%	100%
Mundesley - the Prom PS Storm discharge at pumping station Company site name Mundesley - The Prom Pumping Station EA ID / permit AWS00857 · AEECS3350/12196 Outlet location TG3166036560 (OS grid reference) · View on Apple Maps WFD catchment Mun (GB105034055900) Bathing water Mundesley 2024 spills / hours 2 / 6.7 Long-term average 2.0 spills a year (monitored since 2019) Investigation No investigation activity in reporting period Improvement Bathing Water and/or Shellfish Water improvement ongoing Volume & pollution Estimate from 8.9 hours spilling →	North Sea	1	8.9	down 50%	100%
Stanwick SPS Storm discharge at pumping station Company site name STANWICK TPS EA ID / permit AWS01278 · AW5NF5161 Outlet location SP9720071470 (OS grid reference) · View on Apple Maps WFD catchment Chelveston Brook (GB105032045090) 2024 spills / hours 5 / 15 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 8.8 hours spilling →	Unknown trib. River Nene	4	8.8	down 20%	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.