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
North Luffenham TPS Storm discharge at pumping station EA ID / permit AWS00897 · AWNNF2501 Outlet location SK9450002700 (OS grid reference) · View on Apple Maps WFD catchment Chater - Lower (GB105031050440) 2024 spills / hours 15 / 106 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 29 hours spilling →	R Chater	10	29	down 33%	100%
Haverhill WRC Storm tank at sewage works Sewage works Haverhill Company site name HAVERHILL STW EA ID / permit AWS00574 · AW2NF342 Outlet location TL6808044820 (OS grid reference) · View on Apple Maps WFD catchment Stour Brook (GB105036040950) 2024 spills / hours 15 / 65 Long-term average 7.7 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 29 hours spilling →	Stour Brook River Stour Nt	3	29	down 80%	100%
Dereham WRC Storm tank at sewage works Sewage works Dereham Company site name DEREHAM-RUSHMEADOW RD STW EA ID / permit AWS00328 · AEENF/527 Outlet location TF9754013780 (OS grid reference) · View on Apple Maps WFD catchment Wendling Beck (GB105034051020) 2024 spills / hours 49 / 440 Long-term average 25.3 spills a year (monitored since 2022) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 29 hours spilling →	Wendling Beck	7	29	down 86%	100%
Greenfield Est. PS Storm discharge at pumping station Company site name SKELLINGTHORPE-GARDENFIELD SP EA ID / permit AWS00520 · AW3NF809 Outlet location SK9305071270 (OS grid reference) · View on Apple Maps WFD catchment Boultham Catchwater Drain (GB105030062380) 2024 spills / hours 0 / 0.0 Long-term average 11.0 spills a year (monitored since 2024) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 29 hours spilling →	Unknown trib. Boultham Catchwa	22	29	up from 0	100%
Narborough STW Storm tank at sewage works Sewage works Narborough EA ID / permit AWS00860 · AECNF1147 Outlet location TF7405012620 (OS grid reference) · View on Apple Maps WFD catchment Nar upstream of Abbey Farm (GB105033047791) 2024 spills / hours 68 / 1,487 Long-term average 33.3 spills a year (monitored since 2023) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 29 hours spilling →	Ketlam Drain River Nar Nt	4	29	down 94%	100%
Teeton Storm discharge at pumping station Company site name TEETON SP EA ID / permit AWS01351 · AWNNF2647 Outlet location SP6950070200 (OS grid reference) · View on Apple Maps WFD catchment Hollowell Arm of Spratton Brook (GB105032045510) 2024 spills / hours 9 / 40 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 29 hours spilling →	River Nene (Brixworth Branch)	5	29	down 44%	100%
Coveney CSO Overflow on sewer network Company site name COVENEY STW EA ID / permit AWS00287 · AW1NF458 Outlet location TL4892082640 (OS grid reference) · View on Apple Maps WFD catchment Old Bedford River / River Delph (inc The Hundred Foot Washes) (GB205033000060) 2024 spills / hours 56 / 187 Long-term average 35.8 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 29 hours spilling →	Ten Mile River	15	29	down 73%	98%
Bugbrooke SPS Storm discharge at pumping station Company site name BUGBROOKE TPS EA ID / permit AWS00170 · AW5NF592 Outlet location SP6747857394 (OS grid reference) · View on Apple Maps WFD catchment Bugbrooke (GB105032045280) 2024 spills / hours 13 / 98 Long-term average 7.7 spills a year (monitored since 2023) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 29 hours spilling →	Bugbrooke Brook	6	29	down 54%	100%
Abbotsley - Harbins Lane SPS Storm discharge at pumping station Company site name ABBOTSLEY-HARBINS LANE SP EA ID / permit AWS00007 · AWCNF2355 Outlet location TL2308056740 (OS grid reference) · View on Apple Maps WFD catchment Abbotsley and Hen Brooks (GB105033043240) 2024 spills / hours 14 / 110 Long-term average 10.0 spills a year (monitored since 2024) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 28 hours spilling →	The Hen Brook	6	28	down 57%	100%
Gibraltar Gardens CSO Overflow on sewer network Company site name Norwich - Gibraltar Gardens Combined Sewer Overflow EA ID / permit AWS00464 · AEENF12369 Outlet location TG2175009870 (OS grid reference) · View on Apple Maps WFD catchment Wensum DS Norwich (GB105034055882) 2024 spills / hours 6 / 31 Long-term average 23.7 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 28 hours spilling →	The River Wensum	8	28	up 33%	95%
Burnham on Crouch WRC Inlet overflow at sewage works Sewage works Burnham On Crouch Company site name Burnham-on-Crouch Water Recycling Centre EA ID / permit AWS00180 · ASETS/10533 Outlet location TQ9581095280 (OS grid reference) · View on Apple Maps WFD catchment CROUCH (GB520503704100) 2024 spills / hours 36 / 139 Long-term average 65.1 spills a year (monitored since 2019) Monitor below 90% Power failure / issue · Resolved - Dec Investigation Env Act (SODRP) investigation ongoing, Bathing Water and/or Shellfish Water investigation ongoing Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 28 hours spilling →	The River Crouch (Tidal)	10	28	down 72%	61%
Elsham Hall PS Storm discharge at pumping station Company site name ELSHAM HALL SP EA ID / permit AWS00403 · ANNNF2275 Outlet location TA0314011650 (OS grid reference) · View on Apple Maps WFD catchment Ancholme from Bishopbridge to the Humber (GB104029067520) 2024 spills / hours 7 / 43 Long-term average 10.0 spills a year (monitored since 2024) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 28 hours spilling →	unnamed dyke land drain	13	28	up 86%	100%
Elwyn Road Combined Sewer Overflow Overflow on sewer network Company site name MARCH-ELWYN RD/EL CT OV EA ID / permit AWS00407 · AECNF11503 Outlet location TL4190096700 (OS grid reference) · View on Apple Maps WFD catchment Middle Level (GB205033000050) 2024 spills / hours 30 / 235 Long-term average 19.7 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 28 hours spilling →	River Nene (Old Course)	7	28	down 77%	100%
Great Brington PS Storm discharge at pumping station Company site name GT BRINGTON SP EA ID / permit AWS00485 · AW5NF5255 Outlet location SP6681064790 (OS grid reference) · View on Apple Maps WFD catchment Church Brampton Arm (GB105032045380) 2024 spills / hours 26 / 155 Long-term average 34.5 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 27 hours spilling →	Tributary of the River Nene	12	27	down 54%	100%
Boughton Crossing PS Storm discharge at pumping station Company site name BOUGHTON SP EA ID / permit AWS00106 · AW5NF136 Outlet location SP7370065100 (OS grid reference) · View on Apple Maps WFD catchment Brampton Branch - Lower (GB105032045390) 2024 spills / hours 7 / 29 Long-term average 6.5 spills a year (monitored since 2024) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 27 hours spilling →	Unknown Trib	6	27	down 14%	100%
Crown Street CSO Overflow on sewer network Company site name NEEDHAM MARKET-CROWN ST OV 1 EA ID / permit AWS00301 · ASENF/3739/12421 Outlet location TM0892055220 (OS grid reference) · View on Apple Maps WFD catchment Gipping (d/s Stowmarket) (GB105035046280) 2024 spills / hours 25 / 39 Long-term average 18.5 spills a year (monitored since 2024) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 27 hours spilling →	The River Gipping	12	27	down 52%	94%
Watton Water Recycling Centre Storm tank at sewage works Sewage works Watton Company site name WATTON STW EA ID / permit AWS01448 · AECNF10530 Outlet location TF8856000220 (OS grid reference) · View on Apple Maps WFD catchment Watton Brook (GB105033047870) 2024 spills / hours 28 / 341 Long-term average 32.0 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 27 hours spilling →	The Watton Brook	3	27	down 89%	100%
Walton-on-the-Naze Terminal PS Storm discharge at pumping station Company site name Walton on the Naze Terminal Pumping Station EA ID / permit AWS01434 · ASECS3376/12213 Outlet location TM2604022270 (OS grid reference) · View on Apple Maps WFD catchment Essex (GB650503520001) Bathing water Walton 2024 spills / hours 22 / 66 Long-term average 34.3 spills a year (monitored since 2019) Investigation Bathing Water and/or Shellfish Water investigation ongoing Improvement Bathing Water and/or Shellfish Water improvement ongoing Volume & pollution Estimate from 27 hours spilling →	The North Sea	11	27	down 50%	100%
Daventry Sewerage System Overflow on sewer network Company site name DAVENTRY-SSO(3) EA ID / permit AWS00319 · AW5NF242 Outlet location SP5755062100 (OS grid reference) · View on Apple Maps WFD catchment Welton Village Trib, Whilton branch of R. Nene (GB105032045360) 2024 spills / hours 45 / 81 Long-term average 31.5 spills a year (monitored since 2024) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 27 hours spilling →	Feeder stream Daventry Reservo	18	27	down 60%	100%
Elton Park PS Storm discharge at pumping station Company site name SPROUGHTON-DAUNDY CLOSE TPS (ELTON PARK PS) EA ID / permit AWS00405 · AW4NF740X Outlet location TM1380044700 (OS grid reference) · View on Apple Maps WFD catchment Gipping (d/s Stowmarket) (GB105035046280) 2024 spills / hours 34 / 58 Long-term average 29.5 spills a year (monitored since 2024) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 27 hours spilling →	River Gipping	25	27	down 26%	99%
Alma Park STW - SSO Overflow on sewer network Company site name STORM WATER ALMA PARK EA ID / permit AWS00017 · AW3NFF134 Outlet location SK9360037350 (OS grid reference) · View on Apple Maps WFD catchment Witham - conf Cringle Bk to conf Brant (GB105030056780) 2024 spills / hours 1 / 8.5 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 27 hours spilling →	Unknown trib.	8	27	up 700%	100%
Selbourne Avenue Pumping Station Storm discharge at pumping station Company site name BLETCHLEY-SELBOURNE AVENUE SP EA ID / permit AWS01112 · AW1NF1881 Outlet location SP8588032700 (OS grid reference) · View on Apple Maps WFD catchment Newton Longville Brook (GB105033037840) 2024 spills / hours 23 / 101 Long-term average 13.7 spills a year (monitored since 2023) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 26 hours spilling →	Newton Longville Brook	8	26	down 65%	100%
Rothwell Combined Sewer Overflow Overflow on sewer network Company site name ROTHWELL CSO GLENDON ROAD EA ID / permit AWS01064 · EPRDP3729XW Outlet location SP8248180762 (OS grid reference) · View on Apple Maps WFD catchment Slade Brook (GB105032045170) 2024 spills / hours 48 / 184 Long-term average 33.0 spills a year (monitored since 2024) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 26 hours spilling →	Slade Brook	18	26	down 63%	100%
Gayton(Northants) STW Storm tank at sewage works Sewage works Gayton Company site name GAYTON STW (S NORTHANTS) EA ID / permit AWS00461 · AW5NF171 Outlet location SP7040055100 (OS grid reference) · View on Apple Maps WFD catchment Kislingbury Arm of Wootton Brook (GB105032045560) 2024 spills / hours 40 / 125 Long-term average 18.0 spills a year (monitored since 2022) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 26 hours spilling →	Wootton Brook River Nene Nt	14	26	down 65%	100%
Grimsby Riby St.PS O.F Storm discharge at pumping station Company site name Grimsby Riby Street Sewage Pumping Station EA ID / permit AWS00530 · AW3TS226227 Outlet location TA2892011600 (OS grid reference) · View on Apple Maps WFD catchment Laceby Beck / River Freshney Catchment (to N Sea) (GB104029067530) 2024 spills / hours 17 / 124 Long-term average 15.4 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 26 hours spilling →	River Humber	11	26	down 35%	100%
Catworth (Hostel) STW Storm tank at sewage works Sewage works Catworth Company site name CATWORTH-HOSTEL STW EA ID / permit AWS00210 · AWCNF10528 Outlet location TL0847073290 (OS grid reference) · View on Apple Maps WFD catchment Ellington Brook (GB105033042870) 2024 spills / hours 20 / 156 Long-term average 20.2 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 26 hours spilling →	Trib Ellington Brook	3	26	down 85%	100%
Gorse Lane Terminal Pumping Station Storm discharge at pumping station Company site name TIPTREE-GORSE LA TPS EA ID / permit AWS00472 · NPSWQD000563 Outlet location TL8953015510 (OS grid reference) · View on Apple Maps WFD catchment Layer Brook (GB105037034130) 2024 spills / hours 7 / 25 Long-term average 5.7 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 26 hours spilling →	Trib of the Layer Brook	4	26	down 43%	100%
Hitchin Water Recycling Centre Inlet overflow at sewage works Sewage works Hitchin Company site name HITCHIN STW EA ID / permit AWS00602 · AW1NF2464 Outlet location TL1862031240 (OS grid reference) · View on Apple Maps WFD catchment Hiz (DS Hitchin) (GB105033037700) 2024 spills / hours 21 / 54 Long-term average 49.7 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement UWWTR improvement ongoing Volume & pollution Estimate from 26 hours spilling →	River Hiz	13	26	down 38%	100%
Billericay Water Recycling Centre Storm tank at sewage works Sewage works Billericay Company site name BILLERICAY STW EA ID / permit AWS00089 · AW2NFE05358 Outlet location TQ6989094200 (OS grid reference) · View on Apple Maps WFD catchment Crouch (A129 - Wickford) (GB105037028540) 2024 spills / hours 27 / 202 Long-term average 27.5 spills a year (monitored since 2022) 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 25 hours spilling →	Tributary of R.Crouch Nt	3	25	down 89%	100%
Rayleigh East STW Storm tank at sewage works Sewage works Rayleigh East Company site name RAYLEIGH-EAST STW EA ID / permit AWS01036 · ASENF1172 Outlet location TQ8321090390 (OS grid reference) · View on Apple Maps WFD catchment Noblesgreen Ditch (GB105037028743) 2024 spills / hours 10 / 52 Long-term average 11.4 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 25 hours spilling →	Rayleigh East Brook	3	25	down 70%	99%
Whitton STW Inlet overflow at sewage works Sewage works Whitton EA ID / permit AWS01493 · ANNNF13413 Outlet location SE9031024250 (OS grid reference) · View on Apple Maps WFD catchment Winterton Beck from Source to the Humber (GB104029067660) 2024 spills / hours 170 / 3,290 Long-term average 91.5 spills a year (monitored since 2024) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 25 hours spilling →	Unnamed Drain to R.Humber	13	25	down 92%	100%
Huntingdon Rd Storm Sewage Overflow Overflow on sewer network Company site name CHATTERIS-HUNTINGDON RD OV EA ID / permit AWS00632 · AECNF10512 Outlet location TL3856085650 (OS grid reference) · View on Apple Maps WFD catchment Middle Level (GB205033000050) 2024 spills / hours 34 / 66 Long-term average 22.6 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 25 hours spilling →	Fenton Lode	9	25	down 74%	100%
Sleaford Water Recycling Centre Inlet overflow at sewage works Sewage works Sleaford Company site name SLEAFORD WRC EA ID / permit AWS01146 · ANNNF13036 Outlet location TF0862047210 (OS grid reference) · View on Apple Maps WFD catchment Slea (GB105030056670) 2024 spills / hours 41 / 725 Long-term average 24.5 spills a year (monitored since 2024) Investigation Env Act (SODRP) investigation ongoing, Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 25 hours spilling →	Old River Slea	8	25	down 80%	100%
Bylaugh Water Recycling Centre Storm tank at sewage works Sewage works Bylaugh Company site name BYLAUGH-NEAR CHURCH STW EA ID / permit AWS00185 · AW4NF624X Outlet location TG0372018170 (OS grid reference) · View on Apple Maps WFD catchment Wensum US Norwich (GB105034055881) 2024 spills / hours 25 / 456 Long-term average 15.2 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 25 hours spilling →	River Wensum Nt	3	25	down 88%	100%
Spaldwick PS EO Storm discharge at pumping station Company site name SPALDWICK TPS EA ID / permit AWS01208 · AW1NF993 Outlet location TL1330072900 (OS grid reference) · View on Apple Maps WFD catchment Ellington Brook (GB105033042870) 2024 spills / hours 19 / 178 Long-term average 13.7 spills a year (monitored since 2023) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 25 hours spilling →	Ellington Brook	4	25	down 79%	100%
Walsham Le Willows TPS Storm discharge at pumping station Company site name WALSHAM LE WILLOWS-CAUSEWY TPS EA ID / permit AWS01432 · ASCNF10014 Outlet location TM0000071020 (OS grid reference) · View on Apple Maps WFD catchment Stowlangtoft Stream (GB105033043340) 2024 spills / hours 23 / 152 Long-term average 15.6 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 25 hours spilling →	Stowlangtoft Stream	6	25	down 74%	100%
Uppingham STW Storm tank at sewage works Sewage works Uppingham EA ID / permit AWS01418 · AW5NF743 Outlet location SP8779099280 (OS grid reference) · View on Apple Maps WFD catchment Uppingham Brook (GB105031050530) 2024 spills / hours 0 / 0.0 Long-term average 29.8 spills a year (monitored since 2022) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 25 hours spilling →	Uppingham Brook	11	25	up from 0	92%
King Street Combined Sewer Overflow Overflow on sewer network Company site name King Street Combined Sewer Overflow (Previously Known as Turning Basin CSO) EA ID / permit AWS00679 · AW4TF777X Outlet location TG2364008230 (OS grid reference) · View on Apple Maps WFD catchment Wensum DS Norwich (GB105034055882) 2024 spills / hours 57 / 72 Long-term average 50.7 spills a year (monitored since 2019) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 25 hours spilling →	The River Wensum	26	25	down 54%	100%
Barnwell TPS Storm discharge at pumping station EA ID / permit AWS00055 · AWNNF2128 Outlet location TL0480085200 (OS grid reference) · View on Apple Maps WFD catchment Barnwell Brook (GB105032045210) 2024 spills / hours 33 / 628 Long-term average 14.3 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 25 hours spilling →	Barnwell Brook	2	25	down 94%	100%
Harpole - Northampton Road CSO Overflow on sewer network Company site name Harpole - Northampton Road Combined Sewer Overflow EA ID / permit AWS00563 · AWCNF13665 Outlet location SP6931060390 (OS grid reference) · View on Apple Maps WFD catchment Nene - conf Whilton Branch to conf Brampton Branch (GB105032045320) 2024 spills / hours 14 / 37 Long-term average 16.0 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 25 hours spilling →	Trib River Nene	21	25	up 50%	100%
Scawby Sewer CSO Overflow on sewer network Company site name SCAWBY SEWER SSO EA ID / permit AWS01105 · AW3NFF795 Outlet location SE9710005600 (OS grid reference) · View on Apple Maps WFD catchment Ancholme from Bishopbridge to the Humber (GB104029067520) 2024 spills / hours 4 / 33 Long-term average 7.3 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 25 hours spilling →	Unknown trib.	25	25	up 525%	100%
Woodbridge Station Road CSO Overflow on sewer network Company site name WOODBRIDGE-STATION RD CSO EA ID / permit AWS01537 · ASETS16180 Outlet location TM2739048590 (OS grid reference) · View on Apple Maps WFD catchment DEBEN (GB520503503900) Shellfish water Deben 2024 spills / hours 14 / 27 Long-term average 18.9 spills a year (monitored since 2019) Investigation No investigation activity in reporting period Improvement Env Act (SODRP) improvement ongoing, Bathing Water and/or Shellfish Water improvement ongoing Volume & pollution Estimate from 24 hours spilling →	River Deben	7	24	down 50%	100%
Ferry Rd SPS Hullbridge Storm discharge at pumping station Company site name HULLBRIDGE-FERRY RD SP EA ID / permit AWS00435 · AW2TS670 Outlet location TQ8091095510 (OS grid reference) · View on Apple Maps WFD catchment CROUCH (GB520503704100) 2024 spills / hours 18 / 170 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 24 hours spilling →	Tidal River Crouch	4	24	down 78%	100%
Woolverstone - Marina TPS Storm discharge at pumping station Company site name WOOLVERSTONE-MARINA TPS EA ID / permit AWS01543 · ASETS10492 Outlet location TM1893039080 (OS grid reference) · View on Apple Maps WFD catchment ORWELL (GB520503613601) 2024 spills / hours 27 / 73 Long-term average 12.6 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 24 hours spilling →	River Orwell	9	24	down 67%	100%
Ringstead SPS Storm discharge at pumping station Company site name RINGSTEAD-CARLOW RD SP EA ID / permit AWS01051 · AW5NF1571 Outlet location SP9837075220 (OS grid reference) · View on Apple Maps WFD catchment Nene - conf Ise to Islip (GB105032050383) 2024 spills / hours 25 / 68 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 24 hours spilling →	Trib River Nene	6	24	down 76%	100%
Harleston STW Storm tank at sewage works Sewage works Harleston EA ID / permit AWS00560 · AW4NF/533 Outlet location TM2501084040 (OS grid reference) · View on Apple Maps WFD catchment Starston Brook (GB105034045880) 2024 spills / hours 5 / 18 Long-term average 6.0 spills a year (monitored since 2023) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 24 hours spilling →	Starston Beck River Waveney N	5	24	no change	99%
Pitsford SPS Storm discharge at pumping station Company site name PITSFORD SP EA ID / permit AWS00995 · AWNNF13563 Outlet location SP7551068410 (OS grid reference) · View on Apple Maps WFD catchment Pitsford Arm of the Brampton Branch (GB105032045470) 2024 spills / hours 8 / 19 Long-term average 7.0 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 24 hours spilling →	Trib of the Faxton Brook	5	24	down 38%	100%
Letchworth Water Recycling Centre Storm tank at sewage works Sewage works Letchworth Company site name Letchworth WRC EA ID / permit AWS00733 · AWCNF1123 Outlet location TL2095034570 (OS grid reference) · View on Apple Maps WFD catchment Pix Brook (GB105033037730) 2024 spills / hours 0 / 0.0 Long-term average 0.8 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing Improvement UWWTR improvement ongoing Volume & pollution Estimate from 24 hours spilling →	Pix Brook, Trib River Gt Ouse	5	24	up from 0	100%
Market Rasen STW PS Storm discharge at pumping station Company site name MARKET RASEN STW TPS EA ID / permit AWS00817 · ANNNF3604/13475 Outlet location TF0761089010 (OS grid reference) · View on Apple Maps WFD catchment Rase from Market Rasen to Bishopbridge (GB104029061870) 2024 spills / hours – / – 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 24 hours spilling →	River Rase	2	24		92%
Debenham Water Recycling Centre Storm tank at sewage works Sewage works Debenham Company site name DEBENHAM STW EA ID / permit AWS00322 · ASENF1054 Outlet location TM1772063170 (OS grid reference) · View on Apple Maps WFD catchment Deben (u/s Brandeston Bridge) (GB105035046200) 2024 spills / hours 12 / 104 Long-term average 6.8 spills a year (monitored since 2022) 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 24 hours spilling →	River Deben Nt	5	24	down 58%	100%

Sewage treatment works

Storm tanks and inlet overflows at each Anglian Water sewage works. The figures are 2025 spills.

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