Storm overflow register · 2025 annual return

Severn Trent Water storm overflows, 2025

Severn Trent Water reported 2,452 storm overflows in England for 2025. Together they recorded 36,471 spills over 200,361 hours, an average of 14.9 spills per overflow against 20.4 across England. That ranks 2 of 10 companies, where 1 is the fewest spills per overflow. Counting the same overflows in both years, spills were down 41% on 2024.

429 overflows did not spill · 72 spilled more than 60 times · 2,342 had monitors working for 90% of the year or more · 435 sewage treatment works with overflows

Hours spilling by month, 2025

020k40k60kJan 2025: 59,762 hours spillingJanFeb 2025: 8,544 hours spillingFebMar 2025: 2,127 hours spillingMarApr 2025: 992 hours spillingAprMay 2025: 2,015 hours spillingMayJun 2025: 1,050 hours spillingJunJul 2025: 2,845 hours spillingJulAug 2025: 481 hours spillingAugSep 2025: 8,682 hours spillingSepOct 2025: 4,788 hours spillingOctNov 2025: 51,286 hours spillingNovDec 2025: 57,819 hours spillingDec
Hours spilling, all Severn Trent Water overflows, from the start/stop records. Spills running across a month end are split between the months.

All Severn Trent 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
James Scott Road CSO
Overflow on sewer network
Company site name
LYE - JAMES SCOTT ROAD (CSO)
EA ID / permit
SVT01228 · S/06/21175/O
Outlet location
SO9305185150 (OS grid reference) · View on Apple Maps
WFD catchment
Stour (Worcs) source to conf Smestow Bk (GB109054044750)
2024 spills / hours
46 / 48
Long-term average
40.2 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - Hydraulic capacity
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 43 hours spilling →
River Stour 36 43 down 22% 99%
Leamington CSO 50
Overflow on sewer network
Company site name
LEAMINGTON - PARADE/HAMILTON TERR (CSO)
EA ID / permit
SVT01331 · S/12/20259/O
Outlet location
SP3176865511 (OS grid reference) · View on Apple Maps
WFD catchment
Leam - conf R Itchen to conf R Avon (GB109054044140)
2024 spills / hours
35 / 33
Long-term average
13.0 spills a year (monitored since 2019)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation completed, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 43 hours spilling →
River Leam 26 43 down 26% 100%
Chasetown Pumping Station
Storm discharge at pumping station
Company site name
CHASETOWN - TRIANGLE (SSO)
EA ID / permit
SVT00517 · T/17/12355/O
Outlet location
SK0554007580 (OS grid reference) · View on Apple Maps
WFD catchment
Crane Brook - source to FootherleyBrook (GB104028046480)
2024 spills / hours
21 / 81
Long-term average
18.2 spills a year (monitored since 2021)
Investigation
UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 43 hours spilling →
Bourne/Black/Crane Brook 14 43 down 33% 94%
Denstone Hall CSO
Overflow on sewer network
Company site name
DENSTONE - DENSTONE HALL (CSO)
EA ID / permit
SVT00750 · T/30/21772/O
Outlet location
SK1034040663 (OS grid reference) · View on Apple Maps
WFD catchment
Churnet from Consall to River Dove (GB104028052652)
2024 spills / hours
21 / 78
Long-term average
13.4 spills a year (monitored since 2019)
Investigation
UWWTR investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 43 hours spilling →
River Churnet 20 43 down 5% 99%
Baslow-Church Lane(Car Park) SPS
Storm discharge at pumping station
Company site name
BASLOW CAR PARK (SSO)
EA ID / permit
SVT00195 · T/38/40243/O
Outlet location
SK2578172056 (OS grid reference) · View on Apple Maps
WFD catchment
Bar Brook (GB104028057810)
2024 spills / hours
5 / 32
Long-term average
3.4 spills a year (monitored since 2021)
Investigation
Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 43 hours spilling →
Bar Brook 4 43 down 20% 100%
St Michaels Road CSO
Overflow on sewer network
Company site name
CROSS HEATH - ST MICHAELS ROAD (CSO)
EA ID / permit
SVT02148 · T/01/30008/O
Outlet location
SJ8485147008 (OS grid reference) · View on Apple Maps
WFD catchment
Lyme Brook Catchment (trib of Trent) (GB104028053340)
2024 spills / hours
21 / 27
Long-term average
27.7 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - Hydraulic capacity
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 43 hours spilling →
Lyme Brook 38 43 up 81% 100%
Various CSO'S - Areas of Carlton
Overflow on sewer network
Company site name
CARLTON - VALLEY ROAD (CSO)
EA ID / permit
SVT00481 · T/64/46346/O
Outlet location
SK6220441934 (OS grid reference) · View on Apple Maps
WFD catchment
Ouse Dyke Catchment (trib of Trent) (GB104028053260)
2024 spills / hours
38 / 47
Long-term average
35.5 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - Hydraulic capacity
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation completed, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 43 hours spilling →
Tributary of Ouse Dyke 44 43 up 16% 100%
Prestbury Linden Close CSO
Overflow on sewer network
Company site name
PRESTBURY - LINDEN CLOSE (CSO)
EA ID / permit
SVT01822 · S/17/08870/O
Outlet location
SO9611024273 (OS grid reference) · View on Apple Maps
WFD catchment
Swilgate - source to conf R Avon (GB109054039780)
2024 spills / hours
68 / 266
Long-term average
84.8 spills a year (monitored since 2021)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation completed, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 43 hours spilling →
Mill Stream 25 43 down 63% 100%
Leek Sewage Treatment Works
Storm tank at sewage works
Sewage works
Leek
Company site name
LEEK STW (SSTO)
EA ID / permit
SVT01344 · T/30/36067/R
Outlet location
SJ9784054410 (OS grid reference) · View on Apple Maps
WFD catchment
Churnet from Meerbrook to Leekbrook (GB104028052770)
2024 spills / hours
20 / 135
Long-term average
22.8 spills a year (monitored since 2021)
Investigation
UWWTR investigation completed, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 43 hours spilling →
River Churnet 8 43 down 60% 100%
Coven Heath Sewage Treatment Works
Storm tank at sewage works
Sewage works
Coven Heath
Company site name
COVEN HEATH STW (SSTO)
EA ID / permit
SVT00651 · T/03/35959/O
Outlet location
SJ8995005550 (OS grid reference) · View on Apple Maps
WFD catchment
Penk from Source toSaredon Brook (GB104028046680)
2024 spills / hours
31 / 268
Long-term average
15.0 spills a year (monitored since 2021)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation completed, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 43 hours spilling →
River Penk 5 43 down 84% 100%
Melton Mowbray STW
Storm tank at sewage works
Sewage works
Melton Mowbray
Company site name
MELTON STW (SSTO)
EA ID / permit
SVT01544 · T/55/45835/R
Outlet location
SK7348018293 (OS grid reference) · View on Apple Maps
WFD catchment
Eye / Wreake from Langham Brook to Soar (GB104028047550)
2024 spills / hours
30 / 242
Long-term average
31.3 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 42 hours spilling →
River Wreake 15 42 down 50% 97%
Hartshill - Riseley Road CSO
Overflow on sewer network
Company site name
HARTSHILL - RISELEY ROAD (CSO)
EA ID / permit
SVT01073 · T/01/35715/O
Outlet location
SJ8603645160 (OS grid reference) · View on Apple Maps
WFD catchment
Lyme Brook Catchment (trib of Trent) (GB104028053340)
2024 spills / hours
42 / 36
Long-term average
49.3 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - Hydraulic capacity
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 42 hours spilling →
Tributary of Lyme Brook 31 42 down 26% 100%
Low Burnham - Beck Lane (SSO)
Storm discharge at pumping station
EA ID / permit
SVT01422 · Permit application submitted
Outlet location
SE7788902235 (OS grid reference) · View on Apple Maps
WFD catchment
Torne/Three Rivers from Mother Drain to Trent (GB104028064340)
2024 spills / hours
5 / 36
Long-term average
2.6 spills a year (monitored since 2021)
Investigation
Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 42 hours spilling →
Burnham Beck 7 42 up 40% 100%
Marsden Lane CSO
Overflow on sewer network
Company site name
AYLESTONE - MARSDEN LANE (CSO)
EA ID / permit
SVT01508 · T/52/12345/O
Outlet location
SK5687600970 (OS grid reference) · View on Apple Maps
WFD catchment
Soar from Sence to Rothley Brook (GB104028047030)
2024 spills / hours
23 / 205
Long-term average
7.9 spills a year (monitored since 2019)
Investigation
Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 42 hours spilling →
River Soar 5 42 down 78% 100%
Riddings Lane CSO
Overflow on sewer network
Company site name
CURBAR - RIDDINGS LANE (CSO)
EA ID / permit
SVT01887 · 671
Outlet location
SK2370075300 (OS grid reference) · View on Apple Maps
WFD catchment
Derwent from Westend to Wye (GB104028057880)
2024 spills / hours
113 / 641
Long-term average
126.3 spills a year (monitored since 2019)
High-spill reason (company)
Not asset maintenance - Hydraulic capacity
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 42 hours spilling →
River Derwent 48 42 down 58% 99%
Beechs Garage CSO
Overflow on sewer network
Company site name
STOKE-ON-TRENT - BEECHS GARAGE (CSO)
EA ID / permit
SVT00230 · T/01/30305/O
Outlet location
SJ8689046220 (OS grid reference) · View on Apple Maps
WFD catchment
Fowlea Brook from Source to River Trent (GB104028053360)
2024 spills / hours
16 / 19
Long-term average
19.0 spills a year (monitored since 2019)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 42 hours spilling →
Fowlea Brook 19 42 up 19% 100%
Off Walker Drive (A) CSO
Overflow on sewer network
Company site name
NECHELLS - OFF WALKER DR A (CSO)
EA ID / permit
SVT01708 · TSC1716
Outlet location
SP1018589765 (OS grid reference) · View on Apple Maps
WFD catchment
Tame - conf two arms to R Rea (GB104028046842)
2024 spills / hours
17 / 30
Long-term average
6.3 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 42 hours spilling →
River Tame 10 42 down 41% 100%
Blackfordby CSO
Overflow on sewer network
Company site name
BLACKFORDBY VILLAGE (CSO)
EA ID / permit
SVT00284 · T/23/09108/O
Outlet location
SK3288417548 (OS grid reference) · View on Apple Maps
WFD catchment
Mease from Gilwiskaw Bk to Hooborough Brook (GB104028046570)
2024 spills / hours
17 / 44
Long-term average
36.4 spills a year (monitored since 2019)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation completed, Operational investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 42 hours spilling →
Tributary of Shell Brook 18 42 up 6% 97%
Various PS'S & CSO'S Quorn/Barrow
Overflow on sewer network
Company site name
BARROW - WELLAND ROAD (CSO)
EA ID / permit
SVT02402 · EPRTB3152GZ
Outlet location
SK5780016800 (OS grid reference) · View on Apple Maps
WFD catchment
Soar from Rothley Brook to Long Whatton Brook (GB104028047211)
2024 spills / hours
25 / 208
Long-term average
13.5 spills a year (monitored since 2020)
Investigation
UWWTR investigation completed, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 41 hours spilling →
River Soar - Tributary 9 41 down 64% 100%
Eastcroft Depot CSO
Overflow on sewer network
Company site name
MEADOWS - EASTCROFT DEPOT (CSO)
EA ID / permit
SVT00831 · T/64/45210/O
Outlet location
SK5803338996 (OS grid reference) · View on Apple Maps
WFD catchment
Trent from Soar to The Beck (GB104028053110)
2024 spills / hours
17 / 87
Long-term average
9.8 spills a year (monitored since 2017)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 41 hours spilling →
Tinkers Leen 10 41 down 41% 100%
Greenacres Avenue CSO
Overflow on sewer network
Company site name
HEANOR - GREENACRE AVENUE (CSO)
EA ID / permit
SVT01007 · T/61/45741/O
Outlet location
SK4416347065 (OS grid reference) · View on Apple Maps
WFD catchment
Bailey Brook Catchment (trib of Erewash) (GB104028052590)
2024 spills / hours
30 / 65
Long-term average
32.0 spills a year (monitored since 2019)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing, Operational investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 41 hours spilling →
Bailey Brook 24 41 down 20% 100%
Lorry Park Storm Overflow
Overflow on sewer network
Company site name
CINDERFORD - VALLEY ROAD (CSO)
EA ID / permit
SVT01415 · S/20/26242/O
Outlet location
SO6489013800 (OS grid reference) · View on Apple Maps
WFD catchment
Cinderford Bk - source to conf Blackpool Bk (GB109054032710)
2024 spills / hours
39 / 156
Long-term average
26.7 spills a year (monitored since 2023)
Investigation
UWWTR investigation completed, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 41 hours spilling →
Cinderford Brook 14 41 down 64% 100%
Various CSO'S - Areas of Carlton
Overflow on sewer network
Company site name
CARLTON - FOXHILL RD/FIRST AVE (CSO)
EA ID / permit
SVT02389 · T/64/08304/O
Outlet location
SK6220041940 (OS grid reference) · View on Apple Maps
WFD catchment
Ouse Dyke Catchment (trib of Trent) (GB104028053260)
2024 spills / hours
87 / 303
Long-term average
64.2 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing, Operational investigation ongoing
Improvement
UWWTR improvement completed
Volume & pollution
Estimate from 41 hours spilling →
Ouse Dyke 15 41 down 83% 91%
Orton-on-the-Hill STW
Inlet overflow at sewage works
Sewage works
Orton On The Hill
Company site name
ORTON ON THE HILL STW (CSO)
EA ID / permit
SVT01731 · T/21/35938/R
Outlet location
SK3142204353 (OS grid reference) · View on Apple Maps
WFD catchment
Anker from River Sence to River Tame (GB104028046460)
2024 spills / hours
26 / 163
Long-term average
17.3 spills a year (monitored since 2020)
Investigation
UWWTR investigation completed, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 41 hours spilling →
Tributary of River Anker 8 41 down 69% 99%
Sapcote-Aston Firs Pumping Station
Storm discharge at pumping station
Company site name
SAPCOTE - ASTON FIRS (SSO)
EA ID / permit
SVT00139 · T/50/40071/O
Outlet location
SP4525093641 (OS grid reference) · View on Apple Maps
WFD catchment
Thurlaston Brook Catchment (trib of Soar) (GB104028046940)
2024 spills / hours
1 / 5.8
Long-term average
3.0 spills a year (monitored since 2021)
Investigation
Env Act (SODRP) investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 41 hours spilling →
Tributary of Thurlaston Brook 6 41 up 500% 100%
Abberley Pumping Station
Storm discharge at pumping station
Company site name
ABBERLEY - COMMON ROAD TPS (CSO)
EA ID / permit
SVT00015 · S/08/22038/O
Outlet location
SO7438067570 (OS grid reference) · View on Apple Maps
WFD catchment
Dick Bk - source to conf R Severn (GB109054044210)
2024 spills / hours
27 / 127
Long-term average
25.8 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 41 hours spilling →
Trib of Dick Brook 9 41 down 67% 90%
Carbolite CSO
Overflow on sewer network
Company site name
BAMFORD - THE HOLLOW (CARBOLITE) (CSO)
EA ID / permit
SVT00476 · T/38/21621/O
Outlet location
SK2058683218 (OS grid reference) · View on Apple Maps
WFD catchment
Derwent from Westend to Wye (GB104028057880)
2024 spills / hours
19 / 73
Long-term average
26.4 spills a year (monitored since 2019)
Investigation
UWWTR investigation completed, Operational investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 41 hours spilling →
Trib of River Derwent 23 41 up 21% 100%
Asfordby,Kirby Bellars,Rotherby Pss
Overflow on sewer network
Company site name
ASFORDBY - PUMP LANE CSO
EA ID / permit
SVT01832 · T/55/02241/O
Outlet location
SK6740016500 (OS grid reference) · View on Apple Maps
WFD catchment
Eye / Wreake from Langham Brook to Soar (GB104028047550)
2024 spills / hours
7 / 27
Long-term average
13.4 spills a year (monitored since 2021)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing, Operational investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 41 hours spilling →
River Wreake 15 41 up 114% 100%
Nottingham Road Pumping Station
Storm discharge at pumping station
Company site name
OXTON - SOUTHWELL ROAD (SSO)
EA ID / permit
SVT01691 · T/64/09313/O
Outlet location
SK6275051020 (OS grid reference) · View on Apple Maps
WFD catchment
Dover Beck Catchment (trib of Trent) (GB104028053370)
2024 spills / hours
7 / 11
Long-term average
7.2 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation ongoing, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 41 hours spilling →
Oxton Dumble 9 41 up 29% 100%
Sandringham Drive CSO
Overflow on sewer network
Company site name
SPONDON - DALE RD/SANDRINGHAM DR (CSO)
EA ID / permit
SVT01942 · T/48/20202/O
Outlet location
SK4103236210 (OS grid reference) · View on Apple Maps
WFD catchment
Derwent from Bottle Brook to Trent (GB104028053240)
2024 spills / hours
31 / 101
Long-term average
28.3 spills a year (monitored since 2019)
Investigation
UWWTR investigation completed, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 41 hours spilling →
Trib of River Derwent 28 41 down 10% 100%
Habury Sewage Pmp.Stn - Storm
Storm discharge at pumping station
Company site name
HARBURY - DEPPERS BRIDGE (CSO)
EA ID / permit
SVT01022 · S/12/25043/O
Outlet location
SP3996059830 (OS grid reference) · View on Apple Maps
WFD catchment
Itchen - source to conf with R Stowe (GB109054044070)
2024 spills / hours
12 / 102
Long-term average
6.2 spills a year (monitored since 2021)
Investigation
Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 41 hours spilling →
River Itchen 5 41 down 58% 100%
Church Rd/Eastlands Lane Jcn CSO
Overflow on sewer network
Company site name
CHURCH WARSOP - EASTLANDS LANE (SSO)
EA ID / permit
SVT00550 · T/71/40115/O
Outlet location
SK5686568638 (OS grid reference) · View on Apple Maps
WFD catchment
Meden from Sookholme Brook to Maun (GB104028058060)
2024 spills / hours
7 / 75
Long-term average
8.3 spills a year (monitored since 2019)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 41 hours spilling →
Trib of the River Meden 4 41 down 43% 100%
Digbeth High Street CSO
Overflow on sewer network
Company site name
DIGBETH - DIGBETH/UPPER MILL LANE (CSO)
EA ID / permit
SVT00767 · T/09/36065/O
Outlet location
SP0771286243 (OS grid reference) · View on Apple Maps
WFD catchment
Rea from Bourn Brook to River Tame (GB104028042550)
2024 spills / hours
46 / 46
Long-term average
48.5 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - Hydraulic capacity
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 41 hours spilling →
River Rea 50 41 up 9% 100%
Lower Road Trading Estate CSO
Overflow on sewer network
Company site name
LEDBURY - LOWER RD TRADING EST (CSO)
EA ID / permit
SVT01437 · S/21/23083/O
Outlet location
SO6984537525 (OS grid reference) · View on Apple Maps
WFD catchment
Leadon - source to conf Preston Bk (GB109054039640)
2024 spills / hours
18 / 126
Long-term average
9.2 spills a year (monitored since 2021)
Investigation
Operational investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 41 hours spilling →
River Leadon 10 41 down 44% 100%
Bridge Street Pumping Station SSO
Storm discharge at pumping station
Company site name
GAINSBOROUGH - BRIDGE STREET (CSO)
EA ID / permit
SVT00345 · T/69/12379/O
Outlet location
SK8146089150 (OS grid reference) · View on Apple Maps
WFD catchment
Trent from Carlton-on-Trent to Laughton Drain (GB104028058480)
2024 spills / hours
67 / 295
Long-term average
85.0 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - Hydraulic capacity
Investigation
UWWTR investigation completed, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 40 hours spilling →
River Trent 62 40 down 7% 100%
Lutterworth - Fox Inn CSO
Overflow on sewer network
Company site name
LUTTERWORTH - FOX INN (CSO)
EA ID / permit
SVT01921 · S/10/26166/O
Outlet location
SP5450584098 (OS grid reference) · View on Apple Maps
WFD catchment
Swift source to conf Avon (GB109054043940)
2024 spills / hours
0 / 0.0
Long-term average
9.6 spills a year (monitored since 2021)
Monitor below 90%
Comms failure / issue · Resolved - Dec
Investigation
UWWTR investigation completed, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 40 hours spilling →
River Swift 12 40 up from 0 73%
Snowshill Sewage Pumping Station
Storm discharge at pumping station
Company site name
SNOWSHILL (CSO)
EA ID / permit
SVT02087 · S/18/26411/O
Outlet location
SP0932233916 (OS grid reference) · View on Apple Maps
WFD catchment
Broadway-Badsey Bk - source to conf R Avon (GB109054039350)
2024 spills / hours
14 / 164
Long-term average
4.2 spills a year (monitored since 2021)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 40 hours spilling →
Tributary of Badsey Brook 4 40 down 71% 99%
Mickleton - Cotswold Edge SPS
Storm discharge at pumping station
Company site name
MICKLETON - COTSWOLD EDGE (CSO)
EA ID / permit
SVT01554 · S/13/09102/O
Outlet location
SP1565443498 (OS grid reference) · View on Apple Maps
WFD catchment
Noleham Bk - source to conf R Avon (GB109054039470)
2024 spills / hours
15 / 93
Long-term average
8.1 spills a year (monitored since 2019)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 40 hours spilling →
Trib of Noleham Brook 8 40 down 47% 100%
Aston - Trinity Rd/Lodge Rd (CSO)
Overflow on sewer network
EA ID / permit
SVT02346 · EPRJB3791NP
Outlet location
SP0801490545 (OS grid reference) · View on Apple Maps
WFD catchment
Tame - conf two arms to R Rea (GB104028046842)
2024 spills / hours
69 / 59
Long-term average
62.0 spills a year (monitored since 2021)
High-spill reason (company)
Not asset maintenance - Hydraulic capacity
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation completed, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 40 hours spilling →
River Tame 66 40 down 4% 100%
Long Whatton - Mill Lane (SSO)
Storm discharge at pumping station
EA ID / permit
SVT01406 · Permit application submitted
Outlet location
SK4842523535 (OS grid reference) · View on Apple Maps
WFD catchment
Long Whatton Brook Catchment (trib of Soar) (GB104028047170)
2024 spills / hours
50 / 352
Long-term average
40.0 spills a year (monitored since 2023)
Investigation
UWWTR investigation completed, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 40 hours spilling →
Long Whatton Brook 11 40 down 78% 100%
Breedon on the Hill STW
Storm tank at sewage works (with treatment)
Sewage works
Breedon On The Hill
Company site name
BREEDON STW (CSO)
EA ID / permit
SVT00336 · T/36/45725/R
Outlet location
SK4178623916 (OS grid reference) · View on Apple Maps
WFD catchment
Ramsley Brook from Source to Carr-New Brook (GB104028047340)
Treatment
Reed bed
2024 spills / hours
167 / 2,696
Long-term average
116.0 spills a year (monitored since 2021)
Monitor below 90%
Sensor failure / issue · Resolved - Jul
Investigation
UWWTR investigation completed, Operational investigation completed
Improvement
Operational improvement ongoing
Volume & pollution
Estimate from 40 hours spilling →
Ramsley Brook 9 40 down 95% 90%
Harworth - Church Walk (CSO)
Overflow on sewer network
Company site name
HARWORTH - CHURCH WALK (CSO)
EA ID / permit
SVT01939 · Unpermitted
Outlet location
SK6133991701 (OS grid reference) · View on Apple Maps
WFD catchment
Torne from Ruddle to St Catherine's Well Stream (GB104028058400)
2024 spills / hours
9 / 29
Long-term average
7.0 spills a year (monitored since 2025)
Investigation
Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 40 hours spilling →
Harworth Sewage Dike 7 40 down 22% 99%
Wickersley - Second Lane SPS
Storm discharge at pumping station
Company site name
WICKERSLEY - SECOND LANE (SSO)
EA ID / permit
SVT01974 · T/76/09342/O
Outlet location
SK4881190679 (OS grid reference) · View on Apple Maps
WFD catchment
Oldcotes Dyke Catchment (trib of Ryton) (GB104028058230)
2024 spills / hours
13 / 29
Long-term average
18.0 spills a year (monitored since 2021)
Investigation
UWWTR investigation completed, Operational investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 40 hours spilling →
Tributary of Kingsforth Brook 14 40 up 8% 100%
Shobnall Road CSO
Overflow on sewer network
Company site name
HORNINGLOW - HORNINGLOW ROAD 49 (CSO)
EA ID / permit
SVT02026 · EPRHB3896WR
Outlet location
SK2285923554 (OS grid reference) · View on Apple Maps
WFD catchment
Trent - R Tame to R Dove (GB104028047180)
2024 spills / hours
23 / 34
Long-term average
24.7 spills a year (monitored since 2019)
Investigation
UWWTR investigation completed, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 40 hours spilling →
Shobnall Brook 26 40 up 13% 100%
Castlecroft Ln SPS CSO
Storm discharge at pumping station
Company site name
FINCHFIELD - CASTLECROFT LANE PS (CSO)
EA ID / permit
SVT00497 · S/06/55921/O
Outlet location
SO8669597960 (OS grid reference) · View on Apple Maps
WFD catchment
Smestow Bk - source to conf Wom-Penn Bk (GB109054049340)
2024 spills / hours
8 / 46
Long-term average
7.0 spills a year (monitored since 2019)
Investigation
Env Act (SODRP) investigation ongoing, Operational investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 40 hours spilling →
Smestow Brook 6 40 down 25% 100%
Captains Lane Sco
Overflow on sewer network
Company site name
MARKFIELD - CROFTWAY (FIELD 5247) (CSO)
EA ID / permit
SVT00474 · T/56/45446/O
Outlet location
SK4731507164 (OS grid reference) · View on Apple Maps
WFD catchment
Rothley Brook Catchment (trib of Soar) (GB104028046730)
2024 spills / hours
26 / 45
Long-term average
66.4 spills a year (monitored since 2019)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 40 hours spilling →
Rothley Brook 22 40 down 15% 100%
Kings Norton SPS & Gaulby STW
Storm discharge at pumping station
Company site name
KINGS NORTON - ILLSTON ROAD (SSO)
EA ID / permit
SVT01277 · T/51/03218/O
Outlet location
SK6900000600 (OS grid reference) · View on Apple Maps
WFD catchment
Burton Brook from Source to Sence (GB104028046630)
2024 spills / hours
22 / 184
Long-term average
7.8 spills a year (monitored since 2021)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 40 hours spilling →
Trib of River Sence 4 40 down 82% 100%
Ashbourne - Henmore Brook CSO
Overflow on sewer network
Company site name
ASHBOURNE - HENMORE BROOK (CSO)
EA ID / permit
SVT01606 · DT/6404
Outlet location
SK1742546083 (OS grid reference) · View on Apple Maps
WFD catchment
Henmore Brook Catch (trib of R Dove) (GB104028052700)
2024 spills / hours
21 / 37
Long-term average
21.1 spills a year (monitored since 2019)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
Operational improvement ongoing
Volume & pollution
Estimate from 40 hours spilling →
Henmore Brook 13 40 down 38% 96%
Kirk Road CSO
Overflow on sewer network
Company site name
MAPPERLEY - KIRK ROAD (CSO)
EA ID / permit
SVT01289 · T/64/46345/O
Outlet location
SK6220441934 (OS grid reference) · View on Apple Maps
WFD catchment
Ouse Dyke Catchment (trib of Trent) (GB104028053260)
2024 spills / hours
33 / 30
Long-term average
30.7 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - Hydraulic capacity
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation completed, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 39 hours spilling →
Tributary of Ouse Dyke 35 39 up 6% 100%
Alcester Road CSO
Overflow on sewer network
Company site name
STRATFORD - ALCESTER RD/CHURCH LA (CSO)
EA ID / permit
SVT00041 · S/13/23220/O
Outlet location
SP1841455290 (OS grid reference) · View on Apple Maps
WFD catchment
Avon- Tramway Br Stratford to Workman Br Evesham (GB109054044401)
2024 spills / hours
29 / 22
Long-term average
36.9 spills a year (monitored since 2019)
Investigation
UWWTR investigation completed, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 39 hours spilling →
Shottery Brook 25 39 down 14% 100%

Sewage treatment works

Storm tanks and inlet overflows at each Severn Trent 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.