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
Sling Lane Combined Sewer Overflow
Storm discharge at pumping station
Company site name
BROADHEATH - OLD SD WORKS PS (SSO)
EA ID / permit
SVT00362 · S/09/55763/O
Outlet location
SO8119656069 (OS grid reference) · View on Apple Maps
WFD catchment
Laughern Bk - source to conf R Teme (GB109054044380)
2024 spills / hours
19 / 154
Long-term average
14.6 spills a year (monitored since 2021)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 36 hours spilling →
Tributary of Laughern Brook 5 36 down 74% 95%
South Croxton SPS
Storm discharge at pumping station
Company site name
SOUTH CROXTON - SCHOOL LANE PS (CSO)
EA ID / permit
SVT02102 · T/55/45236/O
Outlet location
SK6865710160 (OS grid reference) · View on Apple Maps
WFD catchment
Queniborough Brook Catchment (trib of Wreake) (GB104028047450)
2024 spills / hours
17 / 156
Long-term average
6.3 spills a year (monitored since 2019)
Investigation
Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 36 hours spilling →
Queniborough Brook 4 36 down 76% 100%
Brewood - Four Ashes Road SPS
Storm discharge at pumping station
Company site name
BREWOOD - FOUR ASHES ROAD (CSO)
EA ID / permit
SVT00340 · T/03/12149/O
Outlet location
SJ8914209012 (OS grid reference) · View on Apple Maps
WFD catchment
Penk - Saredon Bk to Whiston Bk (GB104028047122)
2024 spills / hours
11 / 20
Long-term average
38.5 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - Hydraulic capacity
Investigation
UWWTR investigation completed, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 35 hours spilling →
Chillington Brook 41 35 up 273% 100%
Newport Road SSO
Overflow on sewer network
Company site name
ALBRIGHTON - NEWPORT ROAD (CSO)
EA ID / permit
SVT01639 · NPSWQD000857
Outlet location
SJ8058004670 (OS grid reference) · View on Apple Maps
WFD catchment
Albrighton Bk - source to conf R Worfe (GB109054050270)
2024 spills / hours
33 / 52
Long-term average
30.2 spills a year (monitored since 2021)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 35 hours spilling →
Albrighton Brook 30 35 down 9% 97%
King Edward Street CSO
Overflow on sewer network
Company site name
ASHBOURNE - KING EDWARD STREET (CSO)
EA ID / permit
SVT01268 · DT/6403
Outlet location
SK1742546083 (OS grid reference) · View on Apple Maps
WFD catchment
Henmore Brook Catch (trib of R Dove) (GB104028052700)
2024 spills / hours
2 / 0.3
Long-term average
4.8 spills a year (monitored since 2022)
Investigation
Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 35 hours spilling →
Henmore Brook 16 35 up 700% 99%
Washwood Heath - Watson Road CSO
Overflow on sewer network
Company site name
WASHWOOD HEATH - WATSON ROAD (CSO)
EA ID / permit
SVT02461 · T/10/35023/O
Outlet location
SP1008589489 (OS grid reference) · View on Apple Maps
WFD catchment
Rea from Bourn Brook to River Tame (GB104028042550)
2024 spills / hours
18 / 36
Long-term average
11.6 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 35 hours spilling →
River Rea 9 35 down 50% 99%
Victoria Ave / Crescent Ln CSO
Overflow on sewer network
Company site name
SHREWSBURY - VICTORIA AVE/CRES LA (CSO)
EA ID / permit
SVT02413 · S/02/21017/O
Outlet location
SJ4896112063 (OS grid reference) · View on Apple Maps
WFD catchment
Severn - conf Bele Bk to conf Sundorne Bk (GB109054049142)
2024 spills / hours
27 / 59
Long-term average
66.3 spills a year (monitored since 2019)
Monitor below 90%
Capital / maintenance works affect EDM operation · Resolved - Dec
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation completed, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 35 hours spilling →
River Severn 20 35 down 26% 89%
Tittensor Combined Sewer Overflow
Overflow on sewer network
Company site name
TITTENSOR - STONE ROAD (CSO)
EA ID / permit
SVT02328 · T/01/00122/O
Outlet location
SJ8762838215 (OS grid reference) · View on Apple Maps
WFD catchment
Trent from Fowlea Brook to Tittensor (GB104028053271)
2024 spills / hours
25 / 21
Long-term average
25.4 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 35 hours spilling →
River Trent 27 35 up 8% 99%
Izons Lane CSO
Overflow on sewer network
Company site name
OLDBURY - IZONS LANE (CSO)
EA ID / permit
SVT01225 · T/08/02798/O
Outlet location
SO9917090360 (OS grid reference) · View on Apple Maps
WFD catchment
Tame (Oldbury Arm) - source to conf R Tame (Wton Arm) (GB104028042601)
2024 spills / hours
34 / 38
Long-term average
32.1 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 35 hours spilling →
River Tame 23 35 down 32% 100%
Curdworth Pumping Station (CSO)
Storm discharge at pumping station
EA ID / permit
SVT00713 · Permit application submitted
Outlet location
SP1742091446 (OS grid reference) · View on Apple Maps
WFD catchment
Tame - R Rea to R Blythe (GB104028046841)
2024 spills / hours
13 / 135
Long-term average
3.8 spills a year (monitored since 2021)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 34 hours spilling →
River Tame 3 34 down 77% 100%
Station Road P.S,Codsall
Storm discharge at pumping station
Company site name
CODSALL - STATION ROAD (SSO)
EA ID / permit
SVT02183 · T/03/30099/O
Outlet location
SJ8602003500 (OS grid reference) · View on Apple Maps
WFD catchment
Penk from Source toSaredon Brook (GB104028046680)
2024 spills / hours
14 / 85
Long-term average
8.2 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation ongoing, Operational investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 34 hours spilling →
Trib of Moat Brook 17 34 up 21% 100%
North Street CSO
Overflow on sewer network
Company site name
LEEK - NORTH STREET (CSO)
EA ID / permit
SVT01666 · T/30/30328/O
Outlet location
SJ9677557142 (OS grid reference) · View on Apple Maps
WFD catchment
Churnet from Meerbrook to Leekbrook (GB104028052770)
2024 spills / hours
49 / 49
Long-term average
43.0 spills a year (monitored since 2019)
High-spill reason (company)
Performance - Partial / no capacity due to blockage or restriction (e.g. roots / grid) - maintenance issue
Investigation
UWWTR investigation completed, Operational investigation completed
Improvement
Operational improvement ongoing
Volume & pollution
Estimate from 34 hours spilling →
River Churnet 32 34 down 35% 100%
Clayton Road CSO
Overflow on sewer network
Company site name
NEWCASTLE - CLAYTON RD (HOMEBASE) (CSO)
EA ID / permit
SVT00575 · T/01/36239/O
Outlet location
SJ8497645407 (OS grid reference) · View on Apple Maps
WFD catchment
Lyme Brook Catchment (trib of Trent) (GB104028053340)
2024 spills / hours
28 / 69
Long-term average
25.7 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing, Operational investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 34 hours spilling →
Lyme Brook 23 34 down 18% 100%
Craven Arms - Stokesay CSO
Overflow on sewer network
Company site name
CRAVEN ARMS - OLD SCHOOL (CSO)
EA ID / permit
SVT02206 · S/09/56277/O
Outlet location
SO4378581799 (OS grid reference) · View on Apple Maps
WFD catchment
Onny - conf R E Onny to conf R Teme (GB109054044330)
2024 spills / hours
33 / 84
Long-term average
35.2 spills a year (monitored since 2021)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation completed, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 34 hours spilling →
River Onny 19 34 down 42% 100%
Hinckley Sewage Treatment Works
Inlet overflow at sewage works
Sewage works
Hinckley
Company site name
HINCKLEY - BROOKFIELD ROAD (CSO)
EA ID / permit
SVT01150 · T/19/36495/R
Outlet location
SP4144092550 (OS grid reference) · View on Apple Maps
WFD catchment
Sketchley Brook from Source to River Anker (GB104028042470)
2024 spills / hours
47 / 181
Long-term average
37.2 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 34 hours spilling →
Sketchley Brook 15 34 down 68% 100%
Forest Road CSO
Overflow on sewer network
Company site name
HINCKLEY - FOREST ROAD (CSO)
EA ID / permit
SVT01145 · T/19/30143/O
Outlet location
SP4351693460 (OS grid reference) · View on Apple Maps
WFD catchment
Sketchley Brook from Source to River Anker (GB104028042470)
2024 spills / hours
54 / 78
Long-term average
49.7 spills a year (monitored since 2019)
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 34 hours spilling →
Sketchley Brook 32 34 down 41% 100%
The Grove CSO
Overflow on sewer network
Company site name
WEM - THE GROVE 36 (REAR GARDEN) (CSO)
EA ID / permit
SVT02289 · S/04/21012/O
Outlet location
SJ5088428672 (OS grid reference) · View on Apple Maps
WFD catchment
Roden - conf Sleap Bk to conf R Tern (GB109054049190)
2024 spills / hours
28 / 152
Long-term average
14.7 spills a year (monitored since 2019)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation completed, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 34 hours spilling →
Tri of River Roden 15 34 down 46% 99%
Cold Overton STW
Storm tank at sewage works (with treatment)
Sewage works
Cold Overton
Company site name
COLD OVERTON STW (SSTO)
EA ID / permit
SVT00603 · T/54/45654/R
Outlet location
SK8092610895 (OS grid reference) · View on Apple Maps
WFD catchment
Whissendine Brook Catchment (trib of Langham Brook) (GB104028047460)
Treatment
Reed bed
2024 spills / hours
57 / 732
Long-term average
69.8 spills a year (monitored since 2021)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 34 hours spilling →
Tributary of Whissendine Brook 20 34 down 65% 100%
Shrewsbury - 5 Severn Terrace (CSO)
Overflow on sewer network
EA ID / permit
SVT00007 · Permit application submitted
Outlet location
SJ4922812913 (OS grid reference) · View on Apple Maps
WFD catchment
Severn - conf Bele Bk to conf Sundorne Bk (GB109054049142)
Bathing water
River Severn in Shrewsbury
2024 spills / hours
57 / 110
Long-term average
63.4 spills a year (monitored since 2021)
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 34 hours spilling →
River Severn 38 34 down 33% 100%
Leamore Lane CSO
Overflow on sewer network
Company site name
BLOXWICH - LEAMORE LANE 2 (CSO)
EA ID / permit
SVT01334 · T/08/35943/O
Outlet location
SJ9885201426 (OS grid reference) · View on Apple Maps
WFD catchment
Sneyd Brook from Source to Tame (W/hampton Arm) (GB104028046950)
2024 spills / hours
38 / 67
Long-term average
25.2 spills a year (monitored since 2021)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation completed, Operational investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 34 hours spilling →
Tributary of Sneyd Brook 18 34 down 53% 100%
Ipstones Pumping Station
Storm discharge at pumping station
Company site name
IPSTONES PS (CSO)
EA ID / permit
SVT01212 · T/30/20183/O
Outlet location
SK0229049290 (OS grid reference) · View on Apple Maps
WFD catchment
Churnet from Consall to River Dove (GB104028052652)
2024 spills / hours
26 / 49
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 34 hours spilling →
Ipstones Brook 24 34 down 8% 100%
Heather - Mill Lane PS (CSO)
Storm discharge at pumping station
EA ID / permit
SVT01107 · Permit application submitted
Outlet location
SK3944010620 (OS grid reference) · View on Apple Maps
WFD catchment
Sence from Source to Ibstock Brook (GB104028046750)
2024 spills / hours
12 / 42
Long-term average
7.4 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 33 hours spilling →
River Sence 8 33 down 33% 100%
Hay Hall Road CSO
Overflow on sewer network
Company site name
TYSELEY - HAY HALL ROAD (CSO)
EA ID / permit
SVT01095 · T/12/21954/O
Outlet location
SP1050584504 (OS grid reference) · View on Apple Maps
WFD catchment
Cole from Springfield to Hatchford-Kingshurst Brook (GB104028042502)
2024 spills / hours
29 / 77
Long-term average
21.7 spills a year (monitored since 2023)
Investigation
UWWTR investigation completed, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 33 hours spilling →
River Cole 12 33 down 59% 99%
Peopleton Sewage Treatment Works
Storm tank at sewage works
Sewage works
Peopleton
Company site name
PEOPLETON RBC STW (SSTO)
EA ID / permit
SVT01784 · S/19/25426/R
Outlet location
SO9345050730 (OS grid reference) · View on Apple Maps
WFD catchment
Bow Bk - Shell to conf R Avon (GB109054043712)
2024 spills / hours
29 / 75
Long-term average
37.7 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 33 hours spilling →
Bow Brook 10 33 down 66% 100%
Leach Heath Lane CSO
Overflow on sewer network
Company site name
RUBERY - LEACH HEATH LANE (CSO)
EA ID / permit
SVT01328 · T/09/36064/O
Outlet location
SO9917777151 (OS grid reference) · View on Apple Maps
WFD catchment
Rea source to Bourn Brook (GB104028042510)
2024 spills / hours
39 / 58
Long-term average
30.2 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation completed, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 33 hours spilling →
Tributary of Callow Brook 26 33 down 33% 100%
Little Heakley Farm CSO
Overflow on sewer network
Company site name
NORTON GREEN - LITTLE HEAKLEY FARM (CSO)
EA ID / permit
SVT01378 · T/01/36408/O
Outlet location
SJ9022751732 (OS grid reference) · View on Apple Maps
WFD catchment
Trent from Source to Ford Green Brook (GB104028053400)
2024 spills / hours
17 / 66
Long-term average
14.7 spills a year (monitored since 2019)
Investigation
UWWTR investigation completed, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 33 hours spilling →
River Trent 13 33 down 24% 98%
Lime Grove Walk/Bank Road Po CSO
Overflow on sewer network
Company site name
MATLOCK - BANK ROAD (POST OFFICE) (CSO)
EA ID / permit
SVT01367 · DT/2170
Outlet location
SK2980260180 (OS grid reference) · View on Apple Maps
WFD catchment
Derwent from Wye to Amber (GB104028052390)
2024 spills / hours
84 / 65
Long-term average
93.0 spills a year (monitored since 2017)
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 33 hours spilling →
River Derwent 61 33 down 27% 100%
Asfordby Terminalsps
Storm discharge at pumping station
Company site name
ASFORDBY PS (CSO)
EA ID / permit
SVT00113 · EPRDB3191NX
Outlet location
SK7111118809 (OS grid reference) · View on Apple Maps
WFD catchment
Eye / Wreake from Langham Brook to Soar (GB104028047550)
2024 spills / hours
60 / 858
Long-term average
41.6 spills a year (monitored since 2021)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 33 hours spilling →
River Wreake 3 33 down 95% 100%
Weston Hall Pu St. Emerg Sewage
Storm discharge at pumping station
Company site name
WESTON-UNDER-LIZARD - WESTON HALL (SSO)
EA ID / permit
SVT02520 · S/05/06051/O
Outlet location
SJ8060010700 (OS grid reference) · View on Apple Maps
WFD catchment
Neachley Bk - source to conf Burlington Bk (GB109054050070)
2024 spills / hours
21 / 107
Long-term average
15.2 spills a year (monitored since 2021)
Investigation
UWWTR investigation completed, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 33 hours spilling →
River Worfe (Tributary) 4 33 down 81% 100%
Wigston Parva STW
Inlet overflow at sewage works
Sewage works
Wigston Parva
Company site name
WIGSTON PARVA STW SSO
EA ID / permit
SVT02559 · T/50/00533/O
Outlet location
SP4640089800 (OS grid reference) · View on Apple Maps
WFD catchment
Soar Brook from Source to Soar (GB104028042590)
2024 spills / hours
3 / 20
Long-term average
2.8 spills a year (monitored since 2021)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 33 hours spilling →
Trib of River Soar 3 33 no change 100%
Wood Road/School Road CSO
Overflow on sewer network
Company site name
TETTENHALL - SCHOOL RD/WOODLAND AV (CSO)
EA ID / permit
SVT02601 · EPRQB3396AD
Outlet location
SO8780099130 (OS grid reference) · View on Apple Maps
WFD catchment
Penk from Source toSaredon Brook (GB104028046680)
2024 spills / hours
21 / 13
Long-term average
22.5 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - Hydraulic capacity
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 33 hours spilling →
River Penk/Wergs Brook 31 33 up 48% 99%
Mh at Junction of Black Tor Road
Overflow on sewer network
Company site name
BONSALL - CLATTERWAY/BLACK TOR RD (CSO)
EA ID / permit
SVT01548 · DT/2187
Outlet location
SK2810057700 (OS grid reference) · View on Apple Maps
WFD catchment
Derwent from Wye to Amber (GB104028052390)
2024 spills / hours
30 / 68
Long-term average
28.2 spills a year (monitored since 2021)
Investigation
UWWTR investigation completed, Operational investigation completed
Improvement
Operational improvement ongoing
Volume & pollution
Estimate from 33 hours spilling →
River Derwent 22 33 down 27% 93%
West Street PS - Storm Overflow
Storm discharge at pumping station
Company site name
GLENFIELD - WEST STREET (SSO)
EA ID / permit
SVT02515 · T/56/07427/O
Outlet location
SK5410006500 (OS grid reference) · View on Apple Maps
WFD catchment
Rothley Brook Catchment (trib of Soar) (GB104028046730)
2024 spills / hours
2 / 13
Long-term average
2.0 spills a year (monitored since 2022)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 33 hours spilling →
Rothley Brook 4 33 up 100% 100%
Stroud - Bath Rd Ind Est (Sdc 10) (CSO)
Overflow on sewer network
EA ID / permit
SVT01598 · Permit application submitted
Outlet location
SO8381404181 (OS grid reference) · View on Apple Maps
WFD catchment
Nailsworth Stream - source to conf R Frome (GB109054026531)
2024 spills / hours
15 / 23
Long-term average
18.8 spills a year (monitored since 2021)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 33 hours spilling →
Nailsworth Stream 29 33 up 93% 100%
Elms Estate CSO
Overflow on sewer network
Company site name
ALFRETON - LYDFORD ROAD (CSO)
EA ID / permit
SVT00862 · T/41/21121/O
Outlet location
SK4123456852 (OS grid reference) · View on Apple Maps
WFD catchment
Alfreton Brook from Westwood Brook to Amber (GB104028052320)
2024 spills / hours
16 / 23
Long-term average
12.9 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 33 hours spilling →
Alfreton Brook 16 33 no change 100%
Shobnall Road CSO
Overflow on sewer network
Company site name
SHOBNALL - SHOBNALL ROAD (CSO)
EA ID / permit
SVT02028 · T/33/07069/O
Outlet location
SK2285923554 (OS grid reference) · View on Apple Maps
WFD catchment
Trent - R Tame to R Dove (GB104028047180)
2024 spills / hours
27 / 136
Long-term average
33.6 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 32 hours spilling →
Shobnall Brook 15 32 down 44% 100%
Wigston Crow Mills SPS
Storm tank at sewage works
Sewage works
Wigston Crow Mills Sps
Company site name
COUNTESTHORPE ROAD SST (SSTO)
EA ID / permit
SVT02686 · TSC1534
Outlet location
SP5887597685 (OS grid reference) · View on Apple Maps
WFD catchment
Sence from Countesthorpe Brook to Soar (GB104028046870)
2024 spills / hours
32 / 206
Long-term average
19.5 spills a year (monitored since 2024)
Investigation
UWWTR investigation completed, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 32 hours spilling →
River Sence 7 32 down 78% 100%
Cheddleton WwTW
Storm tank at sewage works
Sewage works
Cheddleton
Company site name
CHEDDLETON (STW)
EA ID / permit
SVT00523 · T/30/35983/R
Outlet location
SJ9828651314 (OS grid reference) · View on Apple Maps
WFD catchment
Churnet from Endon Brook to Consall (GB104028052651)
2024 spills / hours
3 / 17
Long-term average
9.4 spills a year (monitored since 2021)
Investigation
Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 32 hours spilling →
River Churnet 11 32 up 267% 100%
Burton Street CSO
Overflow on sewer network
Company site name
CASTLEFIELDS - BURTON STREET (CSO)
EA ID / permit
SVT00435 · S/02/21039/O
Outlet location
SJ5006913047 (OS grid reference) · View on Apple Maps
WFD catchment
Severn - conf Bele Bk to conf Sundorne Bk (GB109054049142)
2024 spills / hours
22 / 85
Long-term average
61.4 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 32 hours spilling →
River Severn 17 32 down 23% 100%
Anglers Lane CSO
Overflow on sewer network
Company site name
SPONDON - ANGLERS LANE 39/41 (CSO)
EA ID / permit
SVT00081 · T/48/21193/O
Outlet location
SK4055234793 (OS grid reference) · View on Apple Maps
WFD catchment
Derwent from Bottle Brook to Trent (GB104028053240)
2024 spills / hours
14 / 42
Long-term average
17.0 spills a year (monitored since 2019)
Investigation
UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 32 hours spilling →
River Derwent 7 32 down 50% 100%
Cottage Lane CSO
Overflow on sewer network
Company site name
SHOTTERY - COTTAGE LANE (SO)
EA ID / permit
SVT00647 · S/13/21484/O
Outlet location
SP1853054688 (OS grid reference) · View on Apple Maps
WFD catchment
Avon- Tramway Br Stratford to Workman Br Evesham (GB109054044401)
2024 spills / hours
23 / 56
Long-term average
18.5 spills a year (monitored since 2020)
Investigation
UWWTR investigation completed, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 32 hours spilling →
Shottery Brook 12 32 down 48% 100%
Barwell - the Common Pumping Stn
Storm discharge at pumping station
Company site name
BARWELL - THE COMMON (SSO)
EA ID / permit
SVT00624 · T/50/03182/O
Outlet location
SP4523996101 (OS grid reference) · View on Apple Maps
WFD catchment
Thurlaston Brook Catchment (trib of Soar) (GB104028046940)
2024 spills / hours
40 / 37
Long-term average
34.4 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 32 hours spilling →
Trib of Thurlaston Brook 27 32 down 33% 100%
Queens Mead Pmp St Emg O/F & Sur Wt
Storm discharge at pumping station
Company site name
UPTON UPON SEVERN - NEW STREET PS (CSO)
EA ID / permit
SVT01844 · Permit application submitted
Outlet location
SO8505340804 (OS grid reference) · View on Apple Maps
WFD catchment
Severn - conf R Teme to conf R Avon (GB109054039760)
2024 spills / hours
6 / 31
Long-term average
7.8 spills a year (monitored since 2021)
Monitor below 90%
Sensor failure / issue · Resolved - Apr
Investigation
Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 32 hours spilling →
Buryfield Brook 5 32 down 17% 61%
Bishops Cleeve - Dean Farm (SSO)
Storm discharge at pumping station
EA ID / permit
SVT00743 · S/20/05468/O
Outlet location
SO9480028700 (OS grid reference) · View on Apple Maps
WFD catchment
R Swilgate - source to conf R Avon (GB109054039780)
2024 spills / hours
18 / 141
Long-term average
9.8 spills a year (monitored since 2021)
Investigation
UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 32 hours spilling →
Dean Brook 5 32 down 72% 100%
Curzon Gardens Combined Sewer Overf
Overflow on sewer network
Company site name
ST ANNS - CURZON GARDENS (CSO)
EA ID / permit
SVT00714 · T/64/21894/O
Outlet location
SK5907038770 (OS grid reference) · View on Apple Maps
WFD catchment
Trent from Soar to The Beck (GB104028053110)
2024 spills / hours
46 / 79
Long-term average
32.1 spills a year (monitored since 2017)
High-spill reason (company)
Performance - Partial / no capacity due to blockage or restriction (e.g. roots / grid) - maintenance issue
Investigation
UWWTR investigation completed, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 32 hours spilling →
River Trent 37 32 down 20% 99%
Wellington - Morrisons CSO
Storm discharge at pumping station
Company site name
WELLINGTON - MORRISONS (CSO)
EA ID / permit
SVT02490 · S/04/50009/O
Outlet location
SJ6390612045 (OS grid reference) · View on Apple Maps
WFD catchment
Beanhill Brook source to shawbirch B4394 (GB109054050090)
2024 spills / hours
24 / 78
Long-term average
14.0 spills a year (monitored since 2021)
Investigation
UWWTR investigation completed, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 32 hours spilling →
Tributary of River Tern 13 32 down 46% 96%
Smalley- Smalley Mill Road (CSO)
Overflow on sewer network
EA ID / permit
SVT00667 · EPRTB3793VJ
Outlet location
SK3710043500 (OS grid reference) · View on Apple Maps
WFD catchment
Bottle Brook Catchment (trib of Derwent) (GB104028052300)
2024 spills / hours
15 / 25
Long-term average
11.8 spills a year (monitored since 2021)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation completed, Operational investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 32 hours spilling →
Park/Bottle Brook 18 32 up 20% 100%
Bridge Hill/Belper Lane CSO
Overflow on sewer network
Company site name
BELPER - BRIDGE HILL/BELPER LANE (CSO)
EA ID / permit
SVT00757 · EPRHB3896NH
Outlet location
SK3440347022 (OS grid reference) · View on Apple Maps
WFD catchment
Derwent from Amber to Bottle Brook (GB104028052310)
2024 spills / hours
71 / 128
Long-term average
24.4 spills a year (monitored since 2019)
High-spill reason (company)
Not asset maintenance - Hydraulic capacity
Investigation
UWWTR investigation completed, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 31 hours spilling →
River Derwent 46 31 down 35% 100%
Underhill Street Pumping Station
Storm discharge at pumping station
Company site name
BRIDGNORTH - UNDERHILL STREET (SSO)
EA ID / permit
SVT02365 · S/02/55569/O
Outlet location
SO7182092500 (OS grid reference) · View on Apple Maps
WFD catchment
Severn - conf R Worfe to conf R Stour (GB109054049145)
2024 spills / hours
16 / 165
Long-term average
42.7 spills a year (monitored since 2019)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation completed, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 31 hours spilling →
River Severn (Non Tidal) 11 31 down 31% 100%
Bridgnorth Road CSO
Overflow on sewer network
Company site name
TETTENHALL - BRIDGNORTH RD (CSO)
EA ID / permit
SVT00350 · S/06/20944/O
Outlet location
SO8692398246 (OS grid reference) · View on Apple Maps
WFD catchment
Smestow Bk - source to conf Wom-Penn Bk (GB109054049340)
2024 spills / hours
5 / 44
Long-term average
52.6 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 31 hours spilling →
Smestow Brook 5 31 no change 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.