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
Wollaston - London Road CSO Overflow on sewer network Company site name WOLLASTON LONDON RD SSO EA ID / permit AWS01530 · AW5NF2034 Outlet location SP9058062090 (OS grid reference) · View on Apple Maps WFD catchment Nene - conf Brampton Branch to conf Ise (GB105032045050) 2024 spills / hours 54 / 68 Long-term average 31.8 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 →	Wollaston Brook	12	4.3	down 78%	100%
Grimoldby - Eastfield Lane Sp Storm discharge at pumping station Company site name GRIMOLDBY-EASTFIELD LA SP EA ID / permit AWS00526 · ANNNF2271 Outlet location TF3945088320 (OS grid reference) · View on Apple Maps WFD catchment South Dike and Grayfleet Drain (GB105029061680) 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 4.3 hours spilling →	Unnamed Dyke to Sykes Drain	1	4.3	up from 0	100%
Stowmarket-Bridge Street Ov Overflow on sewer network Company site name STOWMARKET-BRIDGE ST OV EA ID / permit AWS01321 · ASENF1779 Outlet location TM0557058120 (OS grid reference) · View on Apple Maps WFD catchment Gipping (through Stowmarket) (GB105035046130) 2024 spills / hours 28 / 88 Long-term average 16.5 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 →	River Gipping	5	4.3	down 82%	100%
Toddington - Luton Road CSO Overflow on sewer network Company site name TODDINGTON-LUTON ROAD SSO EA ID / permit AWS01390 · AW1NF2737 Outlet location TL0132028220 (OS grid reference) · View on Apple Maps WFD catchment Flit (GB105033037640) 2024 spills / hours 12 / 11 Long-term average 6.8 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 →	Trib Fancott Brook	5	4.3	down 58%	100%
Southend - Belton Gardens PS Overflow on sewer network Company site name SOUTHEND-PIER HL/HIGH ST CSO EA ID / permit AWS01173 · S/WR83 Outlet location TQ8848084950 (OS grid reference) · View on Apple Maps WFD catchment THAMES LOWER (GB530603911401) Bathing water Southend Jubilee; Southend Three Shells 2024 spills / hours 6 / 2.3 Long-term average 7.5 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 4.3 hours spilling →	Thames Estuary	9	4.3	up 50%	100%
Southend - Belton Gardens PS Overflow on sewer network Company site name SOUTHEND-SOUTHCHURCH ROAD CSO EA ID / permit AWS01176 · EPR/AB3254TZ 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 18 / 13 Long-term average 13.5 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 4.3 hours spilling →	Thames Estuary	9	4.3	down 50%	91%
Wells-Next-the-Sea STW Storm tank at sewage works Sewage works Wells Next The Sea Company site name WELLS-FREEMAN STREET STW EA ID / permit AWS01464 · AEENF12033 Outlet location TF9128044080 (OS grid reference) · View on Apple Maps WFD catchment STIFFKEY & GLAVEN (GB520503403600) 2024 spills / hours 6 / 29 Long-term average 2.8 spills a year (monitored since 2022) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 4.2 hours spilling →	tributary Wells Creek	2	4.2	down 67%	100%
Histon Road SPS Storm discharge at pumping station Company site name COTTENHAM-HISTON RD SP EA ID / permit AWS00600 · AW1NF1539 Outlet location TL4471066480 (OS grid reference) · View on Apple Maps WFD catchment Old West River (GB205033043375) 2024 spills / hours 25 / 354 Long-term average 17.7 spills a year (monitored since 2023) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 4.0 hours spilling →	Trib Beach Ditch	2	4.0	down 92%	100%
Ingrave Pumping Station Storm discharge at pumping station Company site name INGRAVE-PS EA ID / permit AWS00642 · ASENF1109 Outlet location TQ6269093280 (OS grid reference) · View on Apple Maps WFD catchment Haverings Grove Brook (GB105037028650) 2024 spills / hours 16 / 134 Long-term average 11.8 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 4.0 hours spilling →	Haveringsgrove Brook	1	4.0	down 94%	100%
Canvey Island - Furtherwick Road PS Storm discharge at pumping station Company site name CANVEY-FURTHERWICK RD SP EA ID / permit AWS00197 · AW2NFE11984 Outlet location TQ7943082730 (OS grid reference) · View on Apple Maps WFD catchment THAMES LOWER (GB530603911401) 2024 spills / hours 2 / 14 Long-term average 4.5 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 4.0 hours spilling →	Trib River Thames	1	4.0	down 50%	100%
Foulsham Water Recycling Centre Storm tank at sewage works Sewage works Foulsham Company site name FOULSHAM-STATION RD STW EA ID / permit AWS00449 · AEENF12055 Outlet location TG0246024350 (OS grid reference) · View on Apple Maps WFD catchment Foulsham Tributary (GB105034055850) 2024 spills / hours 25 / 327 Long-term average 12.5 spills a year (monitored since 2022) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 4.0 hours spilling →	Foulsham Beck River Wensum	2	4.0	down 92%	100%
Granborough - Bates Close TPS Storm discharge at pumping station Company site name GRANBOROUGH-BATES CLOSE TPS EA ID / permit AWS00475 · AWCNF11350 Outlet location SP7688025510 (OS grid reference) · View on Apple Maps WFD catchment Claydon Brook (GB105033030570) 2024 spills / hours 4 / 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 4.0 hours spilling →	Unnamed Trib. Winslow Brook	5	4.0	up 25%	91%
Whitlingham Water Recycling Centre Storm tank at sewage works Sewage works Whitlingham Company site name Whitlingham Water Recycling Centre EA ID / permit AWS01490 · AW4TF1789 Outlet location TG2829008040 (OS grid reference) · View on Apple Maps WFD catchment Yare (Wensum to tidal) (GB105034051370) 2024 spills / hours 6 / 36 Long-term average 38.0 spills a year (monitored since 2019) Investigation Env Act (SODRP) investigation ongoing Improvement UWWTR improvement ongoing Volume & pollution Estimate from 3.8 hours spilling →	Tidal River Yare	1	3.8	down 83%	100%
Earls Colne Storm discharge at pumping station Company site name EARLS COLNE-COLCHESTER RD TPS EA ID / permit AWS00369 · ASENF10322 Outlet location TL8665028950 (OS grid reference) · View on Apple Maps WFD catchment Colne (d/s Doe's Corner) (GB105037041330) 2024 spills / hours 2 / 0.5 Long-term average 2.0 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 3.8 hours spilling →	River Colne	6	3.8	up 200%	100%
Saffron Walden WRC Storm tank at sewage works Sewage works Saffron Walden Company site name SAFFRON WALDEN STW EA ID / permit AWS01086 · ASCNF1184 Outlet location TL5272038600 (OS grid reference) · View on Apple Maps WFD catchment Slade (GB105033037580) 2024 spills / hours 10 / 24 Long-term average 5.5 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 3.8 hours spilling →	The Slade River	2	3.8	down 80%	100%
Banovallum CSO Overflow on sewer network Company site name HORNCASTLE-BANOVALLUM OV EA ID / permit AWS00048 · ANNNF2770 Outlet location TF2565069570 (OS grid reference) · View on Apple Maps WFD catchment Bain - Middle (GB105030062300) 2024 spills / hours 5 / 6.8 Long-term average 9.5 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 3.8 hours spilling →	Old River Bain	4	3.8	down 20%	100%
Castle Hedingham - Queen St CSO Overflow on sewer network Company site name CASTLE HEDINGHAM-QUEEN ST OV EA ID / permit AWS00205 · EPRNB3993AQ Outlet location TL7818035210 (OS grid reference) · View on Apple Maps WFD catchment Colne (Gt. Yeldham - Doe's Corner) (GB105037041260) 2024 spills / hours 9 / 42 Long-term average 4.6 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 3.8 hours spilling →	River Colne	2	3.8	down 78%	100%
Northampton Spencer Bridge Road CSO Overflow on sewer network Company site name NORTHAMPTON-SPENCER BRIDGE R EA ID / permit AWS00914 · EPR/JB3296WT Outlet location SP7461060940 (OS grid reference) · View on Apple Maps WFD catchment Brampton Branch - Lower (GB105032045390) 2024 spills / hours 18 / 98 Long-term average 21.7 spills a year (monitored since 2019) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 3.7 hours spilling →	River Nene	6	3.7	down 67%	100%
East Road CSO Overflow on sewer network Company site name East Road Combined Sewer Overflow EA ID / permit AWS00381 · EPRLB3592AF Outlet location TL0461088770 (OS grid reference) · View on Apple Maps WFD catchment Nene - Islip to tidal (GB105032050381) 2024 spills / hours 8 / 1.4 Long-term average 13.6 spills a year (monitored since 2019) 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 3.7 hours spilling →	River Nene	11	3.7	up 38%	7%
Portmans Walk Tank Pumping Station Storm discharge at pumping station Company site name Portman's Walk Pumping Station EA ID / permit AWS01005 · ASETS12153 Outlet location TM1547044070 (OS grid reference) · View on Apple Maps WFD catchment Gipping (d/s Stowmarket) (GB105035046280) 2024 spills / hours 23 / 43 Long-term average 8.5 spills a year (monitored since 2019) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 3.6 hours spilling →	The Orwell Estuary	3	3.6	down 87%	95%
Berners Road Pumping Station Storm discharge at pumping station Company site name Berners Road Pumping Station EA ID / permit AWS00082 · ANNNF3501/13449 Outlet location TA3154006430 (OS grid reference) · View on Apple Maps WFD catchment Buck Beck from Source to N Sea (GB104029062110) Bathing water Cleethorpes; Humberston Fitties 2024 spills / hours 3 / 0.6 Long-term average 5.5 spills a year (monitored since 2022) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 3.6 hours spilling →	Little Buck Beck	1	3.6	down 67%	100%
Carvers La Terminal SPS Storm discharge at pumping station Company site name ATTLEBOROUGH-CARVERS LANE TPS EA ID / permit AWS00202 · AECNF11016 Outlet location TM0408095780 (OS grid reference) · View on Apple Maps WFD catchment Thet (US Swangey Fen) (GB105033047830) 2024 spills / hours 17 / 33 Long-term average 11.0 spills a year (monitored since 2023) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 3.5 hours spilling →	Tributary River Thet	2	3.5	down 88%	100%
PS Hill Row Storm discharge at pumping station Company site name HADDENHAM-HILL ROW SP EA ID / permit AWS01014 · AW1NF370 Outlet location TL4470075700 (OS grid reference) · View on Apple Maps WFD catchment Old West River (GB205033043375) 2024 spills / hours 9 / 34 Long-term average 5.7 spills a year (monitored since 2023) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 3.5 hours spilling →	Old west river	2	3.5	down 78%	100%
Sports Centre Mill Rd. Overflow on sewer network Company site name COLCHESTER-MILE END RD OV EA ID / permit AWS01217 · AW2NFC292 Outlet location TM0060028888 (OS grid reference) · View on Apple Maps WFD catchment Salary Brook (GB105037041320) 2024 spills / hours 23 / 15 Long-term average 15.5 spills a year (monitored since 2024) Monitor below 90% Installation set-up/design issue · Resolved - Aug 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 3.5 hours spilling →	Tendring Streams	8	3.5	down 65%	87%
Saffron Walden WRC Inlet overflow at sewage works Sewage works Saffron Walden Company site name SAFFRON WALDEN STW EA ID / permit AWS01087 · ASCNF1184 Outlet location TL5272038600 (OS grid reference) · View on Apple Maps WFD catchment Slade (GB105033037580) 2024 spills / hours 27 / 25 Long-term average 18.4 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 3.5 hours spilling →	The Slade River	9	3.5	down 67%	99%
East Rudham Pumping Station Storm discharge at pumping station Company site name EAST RUDHAM EYE LANE TPS EA ID / permit AWS00382 · EPRKP3526GY Outlet location TF8347928466 (OS grid reference) · View on Apple Maps WFD catchment Tat (GB105034055870) 2024 spills / hours 5 / 48 Long-term average 3.5 spills a year (monitored since 2024) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 3.3 hours spilling →	Rudham Stream, Trib R. Wensum	2	3.3	down 60%	100%
Doddinghurst STW Inlet overflow at sewage works Sewage works Doddinghurst Company site name DODDINGHURST-STW EA ID / permit AWS00342 · ASENF12043 Outlet location TQ6063098920 (OS grid reference) · View on Apple Maps WFD catchment Doddinghurst Brook (GB105037028720) 2024 spills / hours 23 / 115 Long-term average 16.0 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 3.3 hours spilling →	River Wid	3	3.3	down 87%	100%
Eastwood Park Overflow on sewer network Company site name SOUTHEND-EASTWOOD PK SOUTH SSO EA ID / permit AWS00391 · AW2NFE03958 Outlet location TQ8452088630 (OS grid reference) · View on Apple Maps WFD catchment Eastwood Brook (GB105037028741) 2024 spills / hours 14 / 9.3 Long-term average 7.8 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 3.3 hours spilling →	Eastwood Brook	6	3.3	down 57%	100%
Baldock PS Storm discharge at pumping station Company site name BALDOCK-NORTON ROAD SP EA ID / permit AWS00045 · AWCLF10344 Outlet location TL2420034250 (OS grid reference) · View on Apple Maps WFD catchment Ivel (US Henlow) (GB105033037720) 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 Volume & pollution Estimate from 3.3 hours spilling →	Onto Land	2	3.3	up from 0	100%
North Kelsey Water Recycling Centre Inlet overflow at sewage works Sewage works North Kelsey Company site name NORTH KELSEY STW EA ID / permit AWS00895 · AW3NFF654 Outlet location TA0460002000 (OS grid reference) · View on Apple Maps WFD catchment N Kelsey Beck Catchment (trib of Ancholme) (GB104029061940) 2024 spills / hours 5 / 10 Long-term average 4.0 spills a year (monitored since 2022) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 3.2 hours spilling →	Trib of North Kelsey Beck Rive	2	3.2	down 60%	100%
Alford STW Storm tank at sewage works Sewage works Alford EA ID / permit AWS00015 · AW3NF/131 Outlet location TF4605075950 (OS grid reference) · View on Apple Maps WFD catchment Woldgrift Drain (GB105029061750) 2024 spills / hours 20 / 151 Long-term average 18.8 spills a year (monitored since 2022) Investigation Env Act (SODRP) investigation ongoing Improvement UWWTR improvement ongoing Volume & pollution Estimate from 3.1 hours spilling →	Holme Fen Drain	3	3.1	down 85%	100%
Yarmouth Road CSO Overflow on sewer network Company site name Yarmouth Road Combined Sewer Overflow EA ID / permit AWS01551 · ASETS12157 Outlet location TM1499044710 (OS grid reference) · View on Apple Maps WFD catchment Gipping (d/s Stowmarket) (GB105035046280) 2024 spills / hours 7 / 8.3 Long-term average 12.7 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 3.0 hours spilling →	River Orwell	3	3.0	down 57%	100%
Green Man Ph Cowlinge PS Storm discharge at pumping station Company site name COWLINGE-GREEN MAN P H SP EA ID / permit AWS00518 · ASCNF2335 Outlet location TL7170054900 (OS grid reference) · View on Apple Maps WFD catchment Kennett-Lee Brook (GB105033042990) 2024 spills / hours 15 / 107 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 3.0 hours spilling →	River Kennett	1	3.0	down 93%	100%
Newton Flotman-Maids Head TPS Storm discharge at pumping station EA ID / permit AWS00879 · AEENF12009 Outlet location TM2121097960 (OS grid reference) · View on Apple Maps WFD catchment Tas (Tasburgh to R. Yare) (GB105034051230) 2024 spills / hours 4 / 49 Long-term average 7.8 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 3.0 hours spilling →	River Tas	2	3.0	down 50%	100%
Stambridge SPS Storm discharge at pumping station Company site name GT STAMBRIDGE-TPS EA ID / permit AWS01271 · AW2NF854 Outlet location TQ8993091630 (OS grid reference) · View on Apple Maps WFD catchment CROUCH (GB520503704100) 2024 spills / hours 7 / 34 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 3.0 hours spilling →	Stambridge Brook	2	3.0	down 71%	100%
Wappenham SPS EO Storm discharge at pumping station Company site name WAPPENHAM TPS EA ID / permit AWS01563 · AW1NF948 Outlet location SP6240046200 (OS grid reference) · View on Apple Maps WFD catchment Tove (US Greens Norton) (GB105033038260) 2024 spills / hours 98 / 1,473 Long-term average 50.0 spills a year (monitored since 2024) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 3.0 hours spilling →	River Tove	2	3.0	down 98%	99%
Gimingham - nr. Mill TPS Storm discharge at pumping station Company site name GIMINGHAM-NR MILL TPS EA ID / permit AWS00465 · AEENF2320 Outlet location TG2864036880 (OS grid reference) · View on Apple Maps WFD catchment Mun (GB105034055900) 2024 spills / hours 5 / 2.3 Long-term average 11.0 spills a year (monitored since 2023) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 3.0 hours spilling →	Mundesley Beck	8	3.0	up 60%	99%
Great Coates Station Road PS Storm discharge at pumping station Company site name GT COATES-STATION RD SP EA ID / permit AWS00490 · ANNNF13457 Outlet location TA2386010420 (OS grid reference) · View on Apple Maps WFD catchment Mawnbridge Drain (GB104029067540) 2024 spills / hours 12 / 13 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 3.0 hours spilling →	Towns Croft Drain	3	3.0	down 75%	100%
Bungay St Johns Road SSO Overflow on sewer network Company site name BUNGAY-ST JOHNS ROAD SSO EA ID / permit AWS00175 · AW4NF1773 Outlet location TM3419089240 (OS grid reference) · View on Apple Maps WFD catchment Waveney (Starston Brook - Ellingham Mill) (GB105034045902) 2024 spills / hours 4 / 1.3 Long-term average 4.2 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 3.0 hours spilling →	tributary River Waveney	8	3.0	up 100%	98%
Ex Pattishall STW SSO Overflow on sewer network Company site name PATTISHALL SSO EA ID / permit AWS00420 · AWNNF13336 Outlet location SP6769054630 (OS grid reference) · View on Apple Maps WFD catchment Bugbrooke (GB105032045280) 2024 spills / hours 13 / 30 Long-term average 9.5 spills a year (monitored since 2024) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 3.0 hours spilling →	Pattishall Brook	6	3.0	down 54%	100%
East Runton Beach Road Terminal PS Storm discharge at pumping station Company site name East Runton Beach Road Terminal Pumping Station EA ID / permit AWS00383 · AEECS12197 Outlet location TG2009042800 (OS grid reference) · View on Apple Maps WFD catchment Norfolk East (GB650503520003) Bathing water East Runton 2024 spills / hours 5 / 1.9 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 2.8 hours spilling →	The North Sea	5	2.8	no change	100%
Hythe Bridge Overflow on sewer network Company site name Colchester - Hythe Bridge Combined Sewer Overflow EA ID / permit AWS00633 · AW2TSE00863 Outlet location TM0130025000 (OS grid reference) · View on Apple Maps WFD catchment COLNE (GB520503713800) Shellfish water Colne; Pyefleet 2024 spills / hours 17 / 4.0 Long-term average 10.0 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 2.8 hours spilling →	River Colne	9	2.8	down 47%	96%
Clacton West Road Terminal PS Storm discharge at pumping station Company site name Clacton West Road Terminal Pumping Station EA ID / permit AWS00241 · ASECS3325/12231 Outlet location TM1672013370 (OS grid reference) · View on Apple Maps WFD catchment Essex (GB650503520001) Bathing water Clacton Beach Martello Tower 2024 spills / hours 5 / 13 Long-term average 5.9 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 2.8 hours spilling →	The North Sea	1	2.8	down 80%	100%
Irthlingborough Pumping Station Storm discharge at pumping station Company site name IRTHLINGBOROUGH SP EA ID / permit AWS00655 · AWNNF2404 Outlet location SP9601071450 (OS grid reference) · View on Apple Maps WFD catchment Nene - conf Ise to Islip (GB105032050383) 2024 spills / hours 1 / 2.3 Long-term average 2.2 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 2.8 hours spilling →	River Nene	3	2.8	up 200%	100%
Bures Hamlet PS Storm discharge at pumping station Company site name BURES HAMLET-SP EA ID / permit AWS00178 · AW2NFE16671 Outlet location TL9060034100 (OS grid reference) · View on Apple Maps WFD catchment Stour (Lamarsh - R. Brett) (GB105036040942) 2024 spills / hours 1 / 2.0 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 2.8 hours spilling →	River Stour	1	2.8	no change	100%
Stalham Mill Road TPS Storm discharge at pumping station Company site name STALHAM-MILL ROAD TPS EA ID / permit AWS01268 · AW4NF12216 Outlet location TG3725024740 (OS grid reference) · View on Apple Maps WFD catchment Ant (Dilham to R. Bure) (GB105034051330) 2024 spills / hours 5 / 7.5 Long-term average 7.2 spills a year (monitored since 2021) Monitor below 90% Power failure / issue · Resolved - January after reporting year Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 2.8 hours spilling →	Stalham Dyke	3	2.8	down 40%	48%
Saxilby - High Street/West Bank CSO Overflow on sewer network Company site name SAXILBY-HIGH ST/WEST BANK SSO EA ID / permit AWS01100 · AW3NF837 Outlet location SK8940075180 (OS grid reference) · View on Apple Maps WFD catchment Skellingthorpe Main Drain (GB105030062390) 2024 spills / hours 16 / 15 Long-term average 9.5 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 2.8 hours spilling →	Fossdyke Navigation Canal	6	2.8	down 63%	100%
Southend - Belton Gardens PS Overflow on sewer network Company site name SOUTHEND BRITTANIA RD TANK OV EA ID / permit AWS01165 · S/WR78 Outlet location TQ8627085220 (OS grid reference) · View on Apple Maps WFD catchment THAMES LOWER (GB530603911401) Bathing water Southend Chalkwell; Southend Westcliff Bay 2024 spills / hours 14 / 6.5 Long-term average 10.0 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 2.8 hours spilling →	Thames Estuary	6	2.8	down 57%	100%
Southend - Belton Gardens PS Storm discharge at pumping station Company site name SOUTHEND -WESTERN VALLEY SP EA ID / permit AWS01166 · S/WR78 Outlet location TQ8627085220 (OS grid reference) · View on Apple Maps WFD catchment THAMES LOWER (GB530603911401) Bathing water Southend Chalkwell; Southend Westcliff Bay 2024 spills / hours 5 / 7.0 Long-term average 4.5 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 2.8 hours spilling →	Thames Estuary	4	2.8	down 20%	100%
Holt Main Road WRC Storm tank at sewage works Sewage works Holt Main Road Company site name Holt Main Road WRC EA ID / permit AWS00612 · AW4NF118AW Outlet location TG0683038860 (OS grid reference) · View on Apple Maps WFD catchment Glaven (GB105034055780) 2024 spills / hours 6 / 4.5 Long-term average 4.3 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 2.6 hours spilling →	Trib of River Glaven	4	2.6	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.