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
Bedworth Marston Lane STW
Storm tank at sewage works
Sewage works
Bedworth Marston Lane
Company site name
BEDWORTH - MARSTON LANE STW (CSO)
EA ID / permit
SVT00227 · T/19/36017/R
Outlet location
SP3680187603 (OS grid reference) · View on Apple Maps
WFD catchment
Wem Brook from Source to River Anker (GB104028042430)
2024 spills / hours
22 / 105
Long-term average
15.2 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation completed, Operational investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 55 hours spilling →
Wem Brook 10 55 down 55% 100%
Braunstone - Colbert Drive (SSO)
Storm discharge at pumping station
EA ID / permit
SVT00333 · Permit application submitted
Outlet location
SK5625201194 (OS grid reference) · View on Apple Maps
WFD catchment
Soar from Sence to Rothley Brook (GB104028047030)
2024 spills / hours
26 / 315
Long-term average
11.5 spills a year (monitored since 2022)
Investigation
UWWTR investigation completed, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 55 hours spilling →
River Biam 5 55 down 81% 100%
West Felton STW
Storm tank at sewage works
Sewage works
West Felton
Company site name
WEST FELTON STW (CSO & EO)
EA ID / permit
SVT02510 · S/01/56178/R
Outlet location
SJ3448624917 (OS grid reference) · View on Apple Maps
WFD catchment
Weir Bk - source to conf R Severn (GB109054049940)
2024 spills / hours
8 / 65
Long-term average
7.8 spills a year (monitored since 2021)
Investigation
Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 54 hours spilling →
Weir Brook&Trib of Weir Brook 5 54 down 38% 100%
Various CSO'S-Melton Mowbray Area
Overflow on sewer network
Company site name
MELTON - ASFORDBY ROAD 137 (CSO)
EA ID / permit
SVT02395 · T/55/20197/O
Outlet location
SK7440019200 (OS grid reference) · View on Apple Maps
WFD catchment
Eye / Wreake from Langham Brook to Soar (GB104028047550)
2024 spills / hours
29 / 54
Long-term average
46.2 spills a year (monitored since 2020)
High-spill reason (company)
Not asset maintenance - Hydraulic capacity
Monitor below 90%
Capital / maintenance works affect EDM operation · Resolved - Feb
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation completed, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 54 hours spilling →
River Wreake (Eye) Trib 40 54 up 38% 89%
Rearsby Pumping Station
Storm discharge at pumping station
Company site name
REARSBY - MILL ROAD PS (CSO)
EA ID / permit
SVT01876 · T/55/40129/O
Outlet location
SK6485914570 (OS grid reference) · View on Apple Maps
WFD catchment
Eye / Wreake from Langham Brook to Soar (GB104028047550)
2024 spills / hours
36 / 309
Long-term average
22.9 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 53 hours spilling →
Rearsby Brook 11 53 down 69% 100%
Worksop - Manton STW
Inlet overflow at sewage works
Sewage works
Worksop Manton
Company site name
WORKSOP - MANTON STW 6DWF (CSO)
EA ID / permit
SVT02637 · T/75/45222/R
Outlet location
SK6100978889 (OS grid reference) · View on Apple Maps
WFD catchment
Ryton from Anston Brook to Idle (GB104028058100)
2024 spills / hours
25 / 276
Long-term average
34.0 spills a year (monitored since 2021)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 53 hours spilling →
River Ryton 22 53 down 12% 100%
Main Road CSO
Overflow on sewer network
Company site name
GEDLING - MAIN ROAD (CSO)
EA ID / permit
SVT01455 · T/64/21205/O
Outlet location
SK6207642111 (OS grid reference) · View on Apple Maps
WFD catchment
Ouse Dyke Catchment (trib of Trent) (GB104028053260)
2024 spills / hours
66 / 95
Long-term average
43.7 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
Operational improvement ongoing
Volume & pollution
Estimate from 53 hours spilling →
Ouse Dyke 54 53 down 18% 100%
Mickleover - Sandown Avenue SPS
Storm discharge at pumping station
Company site name
MICKLEOVER - SANDOWN AVENUE (SSO)
EA ID / permit
SVT01553 · T/36/02736/O
Outlet location
SK3000635386 (OS grid reference) · View on Apple Maps
WFD catchment
Eggington Brook Catchment (trib of Trent) (GB104028053170)
2024 spills / hours
8 / 9.7
Long-term average
5.8 spills a year (monitored since 2021)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 53 hours spilling →
Tributary of Egginton Brook 17 53 up 113% 100%
Town Green Street CSO
Overflow on sewer network
Company site name
ROTHLEY - TOWN GREEN STREET (CSO)
EA ID / permit
SVT02338 · T/56/08751/O
Outlet location
SK5807512182 (OS grid reference) · View on Apple Maps
WFD catchment
Rothley Brook Catchment (trib of Soar) (GB104028046730)
2024 spills / hours
10 / 41
Long-term average
28.4 spills a year (monitored since 2019)
Investigation
UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 53 hours spilling →
Rothley Brook 10 53 no change 100%
Keyworth - Platt Lane SPS
Storm discharge at pumping station
Company site name
KEYWORTH - PLATT LANE PS (CSO)
EA ID / permit
SVT01800 · T/64/40319/O
Outlet location
SK6190931783 (OS grid reference) · View on Apple Maps
WFD catchment
Polser Brook from Source to Cotgrave Brook (GB104028053180)
2024 spills / hours
14 / 61
Long-term average
17.6 spills a year (monitored since 2021)
Investigation
UWWTR investigation completed, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 52 hours spilling →
Tributary of Polser Brook 13 52 down 7% 100%
East Bridgford-Springdale Lane SPS
Storm discharge at pumping station
Company site name
EAST BRIDGFORD - SPRINGDALE LANE (SSO)
EA ID / permit
SVT02131 · T/67/40161/O
Outlet location
SK7040742413 (OS grid reference) · View on Apple Maps
WFD catchment
Car Dyke (GB104028052501)
2024 spills / hours
16 / 72
Long-term average
22.6 spills a year (monitored since 2021)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 52 hours spilling →
Tributary of Car Dyke 11 52 down 31% 100%
Church Lawford STW
Inlet overflow at sewage works
Sewage works
Church Lawford
Company site name
CHURCH LAWFORD STW INLET (CSO)
EA ID / permit
SVT00547 · S/10/25784/R
Outlet location
SP4479076940 (OS grid reference) · View on Apple Maps
WFD catchment
Avon - ClaycotonYelvertoft Bk to conf R Sowe (GB109054043920)
2024 spills / hours
42 / 125
Long-term average
27.8 spills a year (monitored since 2021)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
Operational improvement ongoing
Volume & pollution
Estimate from 52 hours spilling →
River Avon 4 52 down 90% 100%
Hilton SPS
Storm discharge at pumping station
Company site name
HILTON - MILL LANE (SSO)
EA ID / permit
SVT01143 · EPRKB3597AD
Outlet location
SK2420030400 (OS grid reference) · View on Apple Maps
WFD catchment
Hilton Bk (trib of R Dove) (GB104028052870)
2024 spills / hours
13 / 100
Long-term average
4.0 spills a year (monitored since 2019)
Investigation
Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 52 hours spilling →
The Hilton Brook 5 52 down 62% 100%
Matlock MH79 Udc - Imperial Road Cs
Overflow on sewer network
Company site name
MATLOCK - IMPERIAL ROAD (CSO)
EA ID / permit
SVT01516 · T/40/01693/O
Outlet location
SK2971460292 (OS grid reference) · View on Apple Maps
WFD catchment
Derwent from Wye to Amber (GB104028052390)
2024 spills / hours
37 / 12
Long-term average
43.3 spills a year (monitored since 2017)
High-spill reason (company)
Not asset maintenance - Hydraulic capacity
Investigation
UWWTR investigation completed, Operational investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 52 hours spilling →
River Derwent 37 52 no change 100%
Victoria Avenue Storm Sewer of
Overflow on sewer network
Company site name
SHREWSBURY - VICTORIA AVE (CSO)
EA ID / permit
SVT02414 · S/02/21018/O
Outlet location
SJ4883012130 (OS grid reference) · View on Apple Maps
WFD catchment
Severn - conf Bele Bk to conf Sundorne Bk (GB109054049142)
2024 spills / hours
63 / 481
Long-term average
41.3 spills a year (monitored since 2022)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation completed, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 52 hours spilling →
River Severn 25 52 down 60% 92%
Grange Road CSO
Overflow on sewer network
Company site name
TUFFLEY - GRANGE ROAD (CSO)
EA ID / permit
SVT02349 · S/20/12253/R
Outlet location
SO8214814660 (OS grid reference) · View on Apple Maps
WFD catchment
Severn River and Trib Estuary (GB530905415403)
2024 spills / hours
19 / 67
Long-term average
12.3 spills a year (monitored since 2019)
Investigation
UWWTR investigation completed, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 52 hours spilling →
Whaddon Brook 10 52 down 47% 96%
SSO at Little Marcle Road P/Station
Storm discharge at pumping station
Company site name
LEDBURY - LITTLE MARCLE RD (BIFR)
EA ID / permit
SVT02138 · S/21/26218/O
Outlet location
SO6994037120 (OS grid reference) · View on Apple Maps
WFD catchment
Leadon - source to conf Preston Bk (GB109054039640)
2024 spills / hours
35 / 106
Long-term average
23.6 spills a year (monitored since 2021)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 52 hours spilling →
The River Leadon 24 52 down 31% 100%
Witton - Gec Grounds (CSO)
Overflow on sewer network
EA ID / permit
SVT02579 · EPRJB3490EG
Outlet location
SP0921590368 (OS grid reference) · View on Apple Maps
WFD catchment
Tame - conf two arms to R Rea (GB104028046842)
2024 spills / hours
40 / 44
Long-term average
35.8 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 ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 51 hours spilling →
Trib River Tame 33 51 down 18% 100%
Castle Foregate Street CSO
Overflow on sewer network
Company site name
SHREWSBURY - CASTLE FOREGATE (CSO)
EA ID / permit
SVT00490 · S/02/21080/O
Outlet location
SJ4943013298 (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
63 / 80
Long-term average
60.0 spills a year (monitored since 2019)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation completed, Operational investigation completed
Improvement
Operational improvement ongoing
Volume & pollution
Estimate from 51 hours spilling →
Bagley Brook 29 51 down 54% 99%
Holloway - Lea Road CSO
Overflow on sewer network
Company site name
HOLLOWAY - LEA ROAD (LEA MILLS) (CSO)
EA ID / permit
SVT01163 · T/40/00737/O
Outlet location
SK3176256204 (OS grid reference) · View on Apple Maps
WFD catchment
Lea Brook Catchment (trib of Derwent) (GB104028052760)
2024 spills / hours
12 / 53
Long-term average
22.8 spills a year (monitored since 2021)
Investigation
UWWTR investigation completed, Operational investigation completed
Improvement
Operational improvement ongoing
Volume & pollution
Estimate from 51 hours spilling →
Lea Brook 25 51 up 108% 93%
Nottingham - Colwick Rd/Trent Ln (CSO)
Overflow on sewer network
EA ID / permit
SVT01680 · Permit application submitted
Outlet location
SK5907038774 (OS grid reference) · View on Apple Maps
WFD catchment
Trent from Soar to The Beck (GB104028053110)
2024 spills / hours
32 / 95
Long-term average
27.4 spills a year (monitored since 2021)
Investigation
UWWTR investigation completed, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 51 hours spilling →
River Trent 27 51 down 16% 100%
Darley Dale - Church Road (CSO)
Overflow on sewer network
EA ID / permit
SVT00735 · Permit application submitted
Outlet location
SK2664462537 (OS grid reference) · View on Apple Maps
WFD catchment
Derwent from Wye to Amber (GB104028052390)
2024 spills / hours
24 / 3.7
Long-term average
23.6 spills a year (monitored since 2019)
High-spill reason (company)
Not asset maintenance - Hydraulic capacity
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 51 hours spilling →
River Derwent 32 51 up 33% 100%
Websters Terrace CSO
Overflow on sewer network
Company site name
MATLOCK - ALFRETON RD (CSO)
EA ID / permit
SVT02476 · TSC2088
Outlet location
SK3062859827 (OS grid reference) · View on Apple Maps
WFD catchment
Bentley Brook Catchment (trib of Derwent) (GB104028052810)
2024 spills / hours
76 / 440
Long-term average
33.6 spills a year (monitored since 2017)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 51 hours spilling →
Bentley Brook 22 51 down 71% 100%
Old Coleham Combined Sewer Overflow
Overflow on sewer network
Company site name
SHREWSBURY - OLD COLEHAM (CSO)
EA ID / permit
SVT01713 · S/02/21108/O
Outlet location
SJ4982912250 (OS grid reference) · View on Apple Maps
WFD catchment
Rea Bk - conf Pontesford Bk to conf R Severn (GB109054049630)
2024 spills / hours
45 / 112
Long-term average
39.6 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 51 hours spilling →
Rea Brook 27 51 down 40% 100%
Nailstone Terminal Pumping Station
Storm discharge at pumping station
Company site name
NAILSTONE PS (CSO)
EA ID / permit
SVT01596 · T/20/30309/O
Outlet location
SK4084407529 (OS grid reference) · View on Apple Maps
WFD catchment
Ibstock Brook from Source to River Sence (GB104028046700)
2024 spills / hours
23 / 205
Long-term average
11.6 spills a year (monitored since 2021)
Investigation
UWWTR investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 51 hours spilling →
Tributary of River Sence 7 51 down 70% 100%
Chadwell SPS
Storm discharge at pumping station
Company site name
CHADWELL - MANOR FARM (CSO)
EA ID / permit
SVT00505 · T/54/12319/O
Outlet location
SK7852024490 (OS grid reference) · View on Apple Maps
WFD catchment
Thorpe Brook Catchment (trib of Eye) (GB104028047590)
2024 spills / hours
16 / 110
Long-term average
9.8 spills a year (monitored since 2021)
Investigation
UWWTR investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 51 hours spilling →
Thorpe Brook 4 51 down 75% 100%
Leylands / Broadway 76 CSO
Overflow on sewer network
Company site name
DERBY - BROADWAY 76 (CSO)
EA ID / permit
SVT01353 · T/46/21203/O
Outlet location
SK3408037750 (OS grid reference) · View on Apple Maps
WFD catchment
Markeaton Brook from Mackworth Brook to Derwent (GB104028052830)
2024 spills / hours
51 / 128
Long-term average
48.9 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
Operational improvement completed
Volume & pollution
Estimate from 51 hours spilling →
Markeaton Brook 32 51 down 37% 100%
King Street Combined Sewer Overflow
Overflow on sewer network
Company site name
BAKEWELL - SOUTH CHURCH ST (CSO)
EA ID / permit
SVT01269 · T/38/45886/O
Outlet location
SK2249867592 (OS grid reference) · View on Apple Maps
WFD catchment
Wye from Monk's Dale to Derwent (GB104028057820)
2024 spills / hours
9 / 10
Long-term average
26.5 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 ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 51 hours spilling →
River Wye 32 51 up 256% 100%
Sapcote Road CSO
Overflow on sewer network
Company site name
STONEY STANTON - SAPCOTE ROAD (CSO)
EA ID / permit
SVT01944 · T/50/07734/O
Outlet location
SP4891994097 (OS grid reference) · View on Apple Maps
WFD catchment
Soar from Soar Brook to Thurlaston Brook (GB104028042620)
2024 spills / hours
27 / 82
Long-term average
28.0 spills a year (monitored since 2019)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 50 hours spilling →
Tributary of River Soar 20 50 down 26% 96%
Etruria Vale 1 CSO
Overflow on sewer network
Company site name
ETRURIA VALE 1 (CSO)
EA ID / permit
SVT00874 · T/01/01822/O
Outlet location
SJ8704046687 (OS grid reference) · View on Apple Maps
WFD catchment
Fowlea Brook from Source to River Trent (GB104028053360)
2024 spills / hours
16 / 17
Long-term average
13.4 spills a year (monitored since 2019)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing
Improvement
UWWTR improvement ongoing
Volume & pollution
Estimate from 50 hours spilling →
Tributary of Fowlea Brook 26 50 up 63% 100%
Netherfield Ln Storm Sewage Overflw
Storm discharge at pumping station
Company site name
MEDEN VALE - WELBECK COLLIERY (SSO)
EA ID / permit
SVT01612 · T/71/02650/O
Outlet location
SK5830069700 (OS grid reference) · View on Apple Maps
WFD catchment
Meden from Sookholme Brook to Maun (GB104028058060)
2024 spills / hours
42 / 62
Long-term average
30.0 spills a year (monitored since 2021)
High-spill reason (company)
Not asset maintenance - Hydraulic capacity
Investigation
UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 50 hours spilling →
River Meden 37 50 down 12% 100%
Alfrick Clay Green STW
Inlet overflow at sewage works
Sewage works
Alfrick Clay Green
Company site name
ALFRICK - CLAY GREEN STW (CSO)
EA ID / permit
SVT00049 · S/09/56139/R
Outlet location
SO7482753380 (OS grid reference) · View on Apple Maps
WFD catchment
Teme - conf R Onny to conf R Severn (GB109054044510)
2024 spills / hours
33 / 115
Long-term average
50.6 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 50 hours spilling →
Tributary of River Teme 19 50 down 42% 100%
North Anston - Ryton Road SPS
Storm discharge at pumping station
Company site name
NORTH ANSTON - RYTON ROAD PS (CSO)
EA ID / permit
SVT00086 · T/75/12427/O
Outlet location
SK5195284063 (OS grid reference) · View on Apple Maps
WFD catchment
Anston Brook from Source to Ryton (GB104028058210)
2024 spills / hours
17 / 46
Long-term average
18.0 spills a year (monitored since 2021)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 50 hours spilling →
Anston Brook 19 50 up 12% 100%
South Littleton - Farm Lane SPS
Storm discharge at pumping station
Company site name
SOUTH LITTLETON - FARM LANE (CSO)
EA ID / permit
SVT02104 · S/16/26059/O
Outlet location
SP0795646329 (OS grid reference) · View on Apple Maps
WFD catchment
Littleton Bk - source to conf Bretforton Bk (GB109054039430)
2024 spills / hours
20 / 132
Long-term average
28.0 spills a year (monitored since 2021)
Investigation
UWWTR investigation completed, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 50 hours spilling →
Littleton Brook 12 50 down 40% 100%
Fenny Drayton Sewage PS
Storm discharge at pumping station
Company site name
FENNY DRAYTON SPS (SSO)
EA ID / permit
SVT00893 · T/19/12086/O
Outlet location
SP3511296472 (OS grid reference) · View on Apple Maps
WFD catchment
Anker from Wem Brook to River Sence (GB104028046430)
2024 spills / hours
32 / 76
Long-term average
30.6 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 50 hours spilling →
Tributary of River Anker 24 50 down 25% 100%
Radstock Avenue
Overflow on sewer network
Company site name
WASHWOOD HEATH - BROMFORD ROAD (CSO)
EA ID / permit
SVT01856 · T/10/09369/O
Outlet location
SP1165089470 (OS grid reference) · View on Apple Maps
WFD catchment
Tame - R Rea to R Blythe (GB104028046841)
2024 spills / hours
55 / 139
Long-term average
40.0 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 50 hours spilling →
River Tame 48 50 down 13% 100%
Worth Street/Foxhill Road CSO
Overflow on sewer network
Company site name
CARLTON - WORTH ST/FOXHILL RD (CSO)
EA ID / permit
SVT02639 · TSC2178
Outlet location
SK6220441934 (OS grid reference) · View on Apple Maps
WFD catchment
Ouse Dyke Catchment (trib of Trent) (GB104028053260)
2024 spills / hours
52 / 135
Long-term average
81.3 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
Operational improvement completed
Volume & pollution
Estimate from 50 hours spilling →
Ouse Dyke 33 50 down 37% 99%
Clive Road Combined Sewer Overflow
Overflow on sewer network
Company site name
SHREWSBURY - CLIVE ROAD (CSO)
EA ID / permit
SVT00583 · S/02/21986/O
Outlet location
SJ5065913592 (OS grid reference) · View on Apple Maps
WFD catchment
Severn - conf Bele Bk to conf Sundorne Bk (GB109054049142)
2024 spills / hours
57 / 80
Long-term average
47.3 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 50 hours spilling →
Trib of River Severn 42 50 down 26% 98%
Horninglow - Wyggeston Street 316 (CSO)
Overflow on sewer network
EA ID / permit
SVT02027 · EPRHB3897AQ
Outlet location
SK2427027960 (OS grid reference) · View on Apple Maps
WFD catchment
Trent - R Tame to R Dove (GB104028047180)
2024 spills / hours
38 / 83
Long-term average
27.6 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
Env Act (SODRP) investigation ongoing, UWWTR investigation completed, Operational investigation completed
Improvement
Operational improvement ongoing
Volume & pollution
Estimate from 50 hours spilling →
Station Road Brook 50 50 up 32% 96%
Lower Mill Farm CSO
Overflow on sewer network
Company site name
KEMERTON - LOWER MILL FARM (CSO)
EA ID / permit
SVT01433 · S/17/25504/O
Outlet location
SO9446336400 (OS grid reference) · View on Apple Maps
WFD catchment
Carrant Bk - source to conf R Avon (GB109054039851)
2024 spills / hours
30 / 64
Long-term average
16.4 spills a year (monitored since 2019)
Investigation
UWWTR investigation completed, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 50 hours spilling →
Tributary of Carrant Brook 19 50 down 37% 100%
Dorrington STW
Inlet overflow at sewage works
Sewage works
Dorrington
Company site name
DORRINGTON STW (CSO)
EA ID / permit
SVT00783 · S/02/55348/R
Outlet location
SJ4804002628 (OS grid reference) · View on Apple Maps
WFD catchment
Cound Bk - conf unnamed trib to conf unnamed trib (GB109054049400)
2024 spills / hours
34 / 69
Long-term average
44.0 spills a year (monitored since 2021)
High-spill reason (company)
Not asset maintenance - Hydraulic capacity
Investigation
UWWTR investigation ongoing, Operational investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 50 hours spilling →
Comley Brook 32 50 down 6% 100%
CSO at Little Glen Road SPS
Storm discharge at pumping station
Company site name
GLEN PARVA - LITTLE GLEN SPS (CSO)
EA ID / permit
SVT00705 · EPRKB3596WV
Outlet location
SP5690098500 (OS grid reference) · View on Apple Maps
WFD catchment
Soar from Sence to Rothley Brook (GB104028047030)
2024 spills / hours
13 / 58
Long-term average
10.1 spills a year (monitored since 2019)
Investigation
UWWTR investigation completed, Operational investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 50 hours spilling →
River Sence (Soar) 10 50 down 23% 100%
CSO at Lichfield Road SPS
Storm discharge at pumping station
Company site name
TAMWORTH - LICHFIELD ROAD (SSO)
EA ID / permit
SVT00703 · T/22/02643/O
Outlet location
SK1967504122 (OS grid reference) · View on Apple Maps
WFD catchment
Tame from River Anker to River Trent (GB104028047050)
2024 spills / hours
41 / 384
Long-term average
28.9 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 49 hours spilling →
River Tame 9 49 down 78% 100%
Farnsfield Sewage Treatment Works
Storm tank at sewage works
Sewage works
Farnsfield
Company site name
FARNSFIELD STW (SSTO)
EA ID / permit
SVT00888 · T/64/45766/R
Outlet location
SK6627756168 (OS grid reference) · View on Apple Maps
WFD catchment
Greet Catchment (trib of Trent) (GB104028053410)
2024 spills / hours
21 / 100
Long-term average
26.4 spills a year (monitored since 2021)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 49 hours spilling →
Cotton Mill Dyke, Trib R Greet 11 49 down 48% 100%
Markeaton St/Merchant St Jcn CSO
Overflow on sewer network
Company site name
DERBY - MARKEATON ST/MERCHANT ST (CSO)
EA ID / permit
SVT01498 · T/47/21114/O
Outlet location
SK3420036850 (OS grid reference) · View on Apple Maps
WFD catchment
Markeaton Brook from Mackworth Brook to Derwent (GB104028052830)
2024 spills / hours
30 / 123
Long-term average
28.3 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 49 hours spilling →
Markeaton Brook 20 49 down 33% 100%
Areas Milford & Belper/Sm & Em O/F
Storm discharge at pumping station
Company site name
BELPER - BRIDGE ST (F/BALL GROUND) (CSO)
EA ID / permit
SVT00092 · T/42/03392/O
Outlet location
SK3426747878 (OS grid reference) · View on Apple Maps
WFD catchment
Derwent from Amber to Bottle Brook (GB104028052310)
2024 spills / hours
18 / 78
Long-term average
16.2 spills a year (monitored since 2020)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 49 hours spilling →
River Derwent 16 49 down 11% 95%
Bawtry Road CSO
Overflow on sewer network
Company site name
HELLABY - BAWTRY ROAD (CSO)
EA ID / permit
SVT00207 · T/83/40034/O
Outlet location
SK5107792083 (OS grid reference) · View on Apple Maps
WFD catchment
Oldcotes Dyke Catchment (trib of Ryton) (GB104028058230)
2024 spills / hours
30 / 40
Long-term average
33.3 spills a year (monitored since 2019)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 49 hours spilling →
Hellaby Brook 23 49 down 23% 100%
Fernhill Heath SPS
Storm discharge at pumping station
Company site name
FERNHILL HEATH - KENNELS LANE (CSO)
EA ID / permit
SVT00895 · S/07/12223/O
Outlet location
SO8698760083 (OS grid reference) · View on Apple Maps
WFD catchment
Salwarpe - conf Elmbridge Bk to conf R Severn (GB109054044170)
2024 spills / hours
27 / 129
Long-term average
14.3 spills a year (monitored since 2019)
Investigation
UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 49 hours spilling →
Martin Brook 13 49 down 52% 99%
Various CSO'S-Melton Mowbray Area
Overflow on sewer network
Company site name
MELTON - LEICESTER BRIDGE O/L G (CSO)
EA ID / permit
SVT02397 · EPRHB3995AY
Outlet location
SK7510018900 (OS grid reference) · View on Apple Maps
WFD catchment
Eye / Wreake from Langham Brook to Soar (GB104028047550)
2024 spills / hours
14 / 91
Long-term average
5.2 spills a year (monitored since 2020)
Investigation
Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 49 hours spilling →
River Wreake (Eye) Trib 4 49 down 71% 100%
Cocks Moors Woods Golf Course CSO
Overflow on sewer network
Company site name
BRANDWD END-COCKS MOOR WD GLF CRSE (CSO)
EA ID / permit
SVT00598 · T/12/36474/O
Outlet location
SP0825879821 (OS grid reference) · View on Apple Maps
WFD catchment
Cole from Source to Springfield (GB104028042501)
2024 spills / hours
58 / 92
Long-term average
33.0 spills a year (monitored since 2020)
High-spill reason (company)
Performance - Asset configuration (e.g. PS/rising main/storm tanks)
Investigation
UWWTR investigation completed, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 49 hours spilling →
Chinn Brook 31 49 down 47% 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.