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

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.

Overflow	Discharges to	Spills 2025	Hours 2025	Spills vs 2024	Monitor uptime
Honnington - Lilleshall SPS Storm discharge at pumping station Company site name CHURCH ROAD HONNINGTON SPS (CSO) EA ID / permit SVT01173 · S/04/55811/O Outlet location SJ7235215057 (OS grid reference) · View on Apple Maps WFD catchment Wall Bk - source to conf Pipe Strine (GB109054050130) 2024 spills / hours 34 / 169 Long-term average 22.8 spills a year (monitored since 2021) Investigation UWWTR investigation ongoing, Operational investigation completed Improvement Operational improvement completed Volume & pollution Estimate from 28 hours spilling →	Tributary of River Strine	7	28	down 79%	99%
High Street Storm Overflow Overflow on sewer network Company site name WOLLASTON - HIGH STREET (CSO) EA ID / permit SVT01127 · S/06/21847/O Outlet location SO8945085480 (OS grid reference) · View on Apple Maps WFD catchment Stour (Worcs) source to conf Smestow Bk (GB109054044750) 2024 spills / hours 22 / 50 Long-term average 20.8 spills a year (monitored since 2022) Investigation UWWTR investigation ongoing, Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 28 hours spilling →	River Stour	17	28	down 23%	100%
Amy Street 14 Braunstone CSO Overflow on sewer network Company site name BRAUNSTONE - AMY STREET 14 (CSO) EA ID / permit SVT00076 · T/52/01648/O Outlet location SK5664501584 (OS grid reference) · View on Apple Maps WFD catchment Soar from Sence to Rothley Brook (GB104028047030) 2024 spills / hours 18 / 88 Long-term average 5.3 spills a year (monitored since 2019) Investigation Operational investigation completed Improvement Operational improvement completed Volume & pollution Estimate from 27 hours spilling →	Trib of River Biam	6	27	down 67%	96%
Stapleford Phase 1 CSO Overflow on sewer network Company site name STAPLEFORD - NEW ROAD (CSO) EA ID / permit SVT02170 · T/61/12357/O Outlet location SK4855638192 (OS grid reference) · View on Apple Maps WFD catchment Erewash from Gilt Brook to Trent (GB104028052480) 2024 spills / hours 15 / 38 Long-term average 12.0 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 27 hours spilling →	River Erewash	10	27	down 33%	100%
Harworth Sewage Treatment Works Inlet overflow at sewage works Sewage works Harworth Company site name HARWORTH STW (CSO) EA ID / permit SVT01078 · T/83/45790/R Outlet location SK6111692053 (OS grid reference) · View on Apple Maps WFD catchment Torne from Ruddle to St Catherine's Well Stream (GB104028058400) 2024 spills / hours 9 / 1.7 Long-term average 15.6 spills a year (monitored since 2021) Investigation UWWTR investigation ongoing, Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 27 hours spilling →	Harworth Sewage Dyke	21	27	up 133%	100%
Lodge Wood Av CSO Storm discharge at pumping station Company site name THURMASTON - CANAL STREET (SSO) EA ID / permit SVT01393 · EPRKB3591VU Outlet location SK5880009100 (OS grid reference) · View on Apple Maps WFD catchment Soar from Sence to Rothley Brook (GB104028047030) 2024 spills / hours 4 / 18 Long-term average 50.4 spills a year (monitored since 2019) Investigation UWWTR investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 27 hours spilling →	Birstall Brook / River Soar	4	27	no change	100%
Lower High Street CSO Overflow on sewer network Company site name STOURBRIDGE - LOWER HIGH STREET (CSO) EA ID / permit SVT01429 · S/06/21181/O Outlet location SO8993784749 (OS grid reference) · View on Apple Maps WFD catchment Stour (Worcs) source to conf Smestow Bk (GB109054044750) 2024 spills / hours 53 / 40 Long-term average 27.8 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 27 hours spilling →	River Stour	47	27	down 11%	100%
Calver - Sheffield Road CSO Overflow on sewer network Company site name CALVER - SHEFFIELD ROAD (CSO) EA ID / permit SVT00456 · EPRSB3693ES Outlet location SK2366575335 (OS grid reference) · View on Apple Maps WFD catchment Derwent from Westend to Wye (GB104028057880) 2024 spills / hours 4 / 52 Long-term average 15.3 spills a year (monitored since 2020) Investigation UWWTR investigation completed, Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 27 hours spilling →	Dale Brook	9	27	up 125%	100%
Tutnalls Street - Hams Road CSO Overflow on sewer network Company site name LYDNEY - TUTNALLS ST/HAMS RD (CSO) EA ID / permit SVT02354 · S/20/05156/O Outlet location SO6369703100 (OS grid reference) · View on Apple Maps WFD catchment Cannop Bk - source to R Severn Estuary (GB109054032640) 2024 spills / hours 24 / 30 Long-term average 18.6 spills a year (monitored since 2019) Investigation UWWTR investigation completed, Operational investigation completed Improvement Operational improvement completed Volume & pollution Estimate from 27 hours spilling →	River Roden	20	27	down 17%	99%
Areas Milford & Belper/Sm & Em O/F Storm discharge at pumping station Company site name MILFORD - PLAY GROUND (SSO) EA ID / permit SVT00093 · T/42/03392/O Outlet location SK3490044800 (OS grid reference) · View on Apple Maps WFD catchment Derwent from Amber to Bottle Brook (GB104028052310) 2024 spills / hours 23 / 22 Long-term average 18.8 spills a year (monitored since 2020) Investigation UWWTR investigation ongoing, Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 27 hours spilling →	River Derwent	25	27	up 9%	97%
Bromford Lane CSO Overflow on sewer network Company site name OLDBURY - BROMFORD LANE (CSO) EA ID / permit SVT00374 · T/08/03038/O Outlet location SO9941490211 (OS grid reference) · View on Apple Maps WFD catchment Tame (Oldbury Arm) - source to conf R Tame (Wton Arm) (GB104028042601) 2024 spills / hours 11 / 14 Long-term average 52.9 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 27 hours spilling →	River Tame	16	27	up 45%	100%
High Ercall Sewage Treatment Works Storm tank at sewage works Sewage works High Ercall Company site name HIGH ERCALL (STW) EA ID / permit SVT01116 · S/04/55903/R Outlet location SJ5934016413 (OS grid reference) · View on Apple Maps WFD catchment Roden - conf Sleap Bk to conf R Tern (GB109054049190) 2024 spills / hours 20 / 117 Long-term average 7.6 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 27 hours spilling →	Trib of River Roden	4	27	down 80%	100%
St Wilfrid'S Road CSO Overflow on sewer network Company site name WEST HALLAM - ST WILFRIDS ROAD (CSO) EA ID / permit SVT02150 · T/61/45469/O Outlet location SK4370041489 (OS grid reference) · View on Apple Maps WFD catchment Nut Brook Catchment (trib of Erewash) (GB104028052520) 2024 spills / hours 20 / 40 Long-term average 12.6 spills a year (monitored since 2021) Investigation UWWTR investigation completed, Operational investigation completed Improvement Operational improvement ongoing Volume & pollution Estimate from 27 hours spilling →	Tributary of Stanley Brook	14	27	down 30%	100%
Wergs Sewage Pumping Station Storm discharge at pumping station Company site name WERGS - WROTTERSELY/WESTCROFT RD (CSO) EA ID / permit SVT02500 · Permit application submitted Outlet location SJ8653500641 (OS grid reference) · View on Apple Maps WFD catchment Penk from Source toSaredon Brook (GB104028046680) 2024 spills / hours 57 / 151 Long-term average 30.6 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 27 hours spilling →	Tributary of River Penk	16	27	down 72%	100%
Marlborough Road (Rear) CSO Storm discharge at pumping station Company site name BREASTON - MARLBOROUGH ROAD (CSO) EA ID / permit SVT01506 · T/49/02839/O Outlet location SK4568533180 (OS grid reference) · View on Apple Maps WFD catchment Erewash from Gilt Brook to Trent (GB104028052480) 2024 spills / hours 10 / 13 Long-term average 5.9 spills a year (monitored since 2019) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement Operational improvement completed Volume & pollution Estimate from 26 hours spilling →	Golden Brook	5	26	down 50%	100%
Off Blurton Road CSO Overflow on sewer network Company site name LONGTON - BLURTON ROAD (CSO) EA ID / permit SVT01703 · T/01/35837/O Outlet location SJ8946742850 (OS grid reference) · View on Apple Maps WFD catchment Longton Bk - source to R Trent (GB104028053273) 2024 spills / hours 13 / 2.5 Long-term average 25.3 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 ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 26 hours spilling →	Longton Brook	31	26	up 138%	100%
Witton – Witton Lane Sst (CSO) Overflow on sewer network EA ID / permit SVT02713 · EPRJB3793RK Outlet location SP0782090460 (OS grid reference) · View on Apple Maps WFD catchment Tame - conf two arms to R Rea (GB104028046842) 2024 spills / hours 11 / 18 Long-term average 9.5 spills a year (monitored since 2022) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 26 hours spilling →	River Tame	7	26	down 36%	100%
Kings Park (CSO) Overflow on sewer network Company site name RETFORD - KINGS PARK (CSO) EA ID / permit SVT00099 · T/74/02547/O Outlet location SK7040080200 (OS grid reference) · View on Apple Maps WFD catchment Idle from Maun/Poulter to Tiln (GB104028058091) 2024 spills / hours 9 / 53 Long-term average 9.0 spills a year (monitored since 2021) Investigation UWWTR investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 26 hours spilling →	River Idle/Maun/Carr Dyke	3	26	down 67%	99%
Darley Abbey CSO Overflow on sewer network Company site name DARLEY ABBEY - NEW ROAD (CSO) EA ID / permit SVT00731 · Unpermitted Outlet location SK3529738505 (OS grid reference) · View on Apple Maps WFD catchment Derwent from Bottle Brook to Trent (GB104028053240) 2024 spills / hours 14 / 4.5 Long-term average 25.4 spills a year (monitored since 2019) Investigation UWWTR investigation ongoing, Operational investigation completed Improvement Operational improvement completed Volume & pollution Estimate from 26 hours spilling →	River Derwent	25	26	up 79%	100%
Selly Oak Moor Green Lane CSO Overflow on sewer network Company site name SELLY OAK - MOOR GREEN LANE (CSO) EA ID / permit SVT01977 · T/12/36469/O Outlet location SP0604582168 (OS grid reference) · View on Apple Maps WFD catchment Rea source to Bourn Brook (GB104028042510) 2024 spills / hours 39 / 43 Long-term average 36.8 spills a year (monitored since 2021) Monitor below 90% Sensor failure / issue · 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 26 hours spilling →	River Rea	29	26	down 26%	89%
Lichfield Sewage Treatment Works Storm tank at sewage works Sewage works Lichfield Company site name LICHFILED STW (SSTO) EA ID / permit SVT01359 · T/07/36033/R Outlet location SK1270712894 (OS grid reference) · View on Apple Maps WFD catchment Pyford Brook Catchment (trib of Trent) (GB104028047250) 2024 spills / hours 22 / 71 Long-term average 16.0 spills a year (monitored since 2020) Investigation UWWTR investigation ongoing, Operational investigation completed Improvement Operational improvement completed Volume & pollution Estimate from 26 hours spilling →	Full Brook	10	26	down 55%	100%
SO Mickleover Hs/Brierfield Way CSO Overflow on sewer network Company site name MICKLEOVER - BRIERFIELD WAY (CSO) EA ID / permit SVT02092 · T/36/07474/O Outlet location SK3147834247 (OS grid reference) · View on Apple Maps WFD catchment Twyford Brook Catchment (trib of Trent) (GB104028053140) 2024 spills / hours 9 / 12 Long-term average 10.3 spills a year (monitored since 2019) Investigation UWWTR investigation completed, Operational investigation completed Improvement Operational improvement completed Volume & pollution Estimate from 26 hours spilling →	Hell Brook	10	26	up 11%	100%
Eaton Pumping Station Storm discharge at pumping station Company site name EATON - DISTRICT (SSO) EA ID / permit SVT00838 · T/65/40325/O Outlet location SK8014029100 (OS grid reference) · View on Apple Maps WFD catchment Devon from Source to Smite (GB104028052490) 2024 spills / hours 8 / 40 Long-term average 3.8 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement Operational improvement completed Volume & pollution Estimate from 26 hours spilling →	Trib of River Devon	3	26	down 63%	98%
North Willenhall - Bentley Rd CSO Overflow on sewer network Company site name NORTH WILLENHALL - BENTLEY RD (CSO) EA ID / permit SVT01668 · T/08/36258/O Outlet location SO9866897987 (OS grid reference) · View on Apple Maps WFD catchment Tame (W/ton Arm) source to conf Oldbury (GB104028046930) 2024 spills / hours 7 / 19 Long-term average 6.2 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement Operational improvement completed Volume & pollution Estimate from 26 hours spilling →	River Tame	7	26	no change	92%
Meadow Road CSO Overflow on sewer network Company site name WOODHOUSE EAVES - MEADOW LANE (CSO) EA ID / permit SVT01524 · T/57/45735/O Outlet location SK5338614429 (OS grid reference) · View on Apple Maps WFD catchment Quorn Brook Catchment (trib of Soar) (GB104028047060) 2024 spills / hours 12 / 21 Long-term average 16.9 spills a year (monitored since 2019) Investigation UWWTR investigation ongoing, Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 26 hours spilling →	Tributary of River Soar	19	26	up 58%	100%
Two Gates-Mount Pleasant CSO Overflow on sewer network Company site name TWO GATES - MOUNT PLEASANT 8 (CSO) EA ID / permit SVT02359 · EPRKB3594VF Outlet location SK2105501860 (OS grid reference) · View on Apple Maps WFD catchment Tame from R Blythe to River Anker (GB104028046440) 2024 spills / hours 24 / 60 Long-term average 19.4 spills a year (monitored since 2019) Investigation Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing, Operational investigation completed Improvement Operational improvement completed Volume & pollution Estimate from 26 hours spilling →	River Tame	9	26	down 63%	100%
Cheswardine Sewage Treatment Works Storm tank at sewage works Sewage works Cheswardine Company site name CHESWARDINE (STW) EA ID / permit SVT00535 · S/04/55997/R Outlet location SJ7190428802 (OS grid reference) · View on Apple Maps WFD catchment Ellerton Bk - source to conf R Meese (GB109054050230) 2024 spills / hours 40 / 203 Long-term average 24.4 spills a year (monitored since 2021) Investigation UWWTR investigation completed, Operational investigation completed Improvement Operational improvement completed Volume & pollution Estimate from 26 hours spilling →	Trib of Ellerton Brook	15	26	down 63%	98%
Staverton Bridge Pumping Station Storm discharge at pumping station Company site name STAVERTON BRIDGE (CSO) EA ID / permit SVT02191 · S/20/25539/O Outlet location SO8912022510 (OS grid reference) · View on Apple Maps WFD catchment Hatherley Bk - source to conf R Severn (GB109054032801) 2024 spills / hours 0 / 0.0 Long-term average 3.0 spills a year (monitored since 2021) Investigation Operational investigation completed Improvement Operational improvement completed Volume & pollution Estimate from 26 hours spilling →	Hatherley Brook	5	26	up from 0	96%
Kingsbury - Coventry Road (SSO) Storm discharge at pumping station EA ID / permit SVT02401 · EPRKB3597EP Outlet location SP2100097100 (OS grid reference) · View on Apple Maps WFD catchment Tame from R Blythe to River Anker (GB104028046440) 2024 spills / hours 29 / 158 Long-term average 19.9 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 26 hours spilling →	Thistlewood Brook	8	26	down 72%	100%
Branting Hill CSO Overflow on sewer network Company site name GROBY - BRANTING HILL (CSO) EA ID / permit SVT00330 · T/56/45416/O Outlet location SK5362407477 (OS grid reference) · View on Apple Maps WFD catchment Rothley Brook Catchment (trib of Soar) (GB104028046730) 2024 spills / hours 15 / 34 Long-term average 12.0 spills a year (monitored since 2019) Investigation UWWTR investigation completed, Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 26 hours spilling →	Tributary of Rothely Brook	12	26	down 20%	100%
Edingale - Pessall Lane SPS Storm discharge at pumping station Company site name EDINGALE - PESSALL LANE (SSO) EA ID / permit SVT00845 · Permit application submitted Outlet location SK2109612348 (OS grid reference) · View on Apple Maps WFD catchment Mease from Hooborough Brook to Trent (GB104028046560) 2024 spills / hours 11 / 73 Long-term average 8.0 spills a year (monitored since 2024) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 25 hours spilling →	Pessall Brook	5	25	down 55%	96%
Jackfield Pumping Station (SPS) Storm discharge at pumping station Company site name JACKFIELD - COALFORD TPS (CSO) EA ID / permit SVT01226 · S/02/08939/O Outlet location SJ6821003210 (OS grid reference) · View on Apple Maps WFD catchment Severn conf M Wenlock-Farley Bk to conf R Worfe (GB109054049143) 2024 spills / hours 32 / 41 Long-term average 18.6 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 25 hours spilling →	River Severn (Non Tidal)	20	25	down 38%	100%
Wilmorton College/Harrow Street CSO Overflow on sewer network Company site name DERBY - HARROW STREET (CSO) EA ID / permit SVT02567 · T/48/21453/O Outlet location SK3776434873 (OS grid reference) · View on Apple Maps WFD catchment Derwent from Bottle Brook to Trent (GB104028053240) 2024 spills / hours 0 / 0.0 Long-term average 16.9 spills a year (monitored since 2019) Investigation UWWTR investigation ongoing, Operational investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 25 hours spilling →	River Derwent	21	25	up from 0	92%
Roundhill Wastewater Treatment Wrks Inlet overflow at sewage works Sewage works Roundhill Wastewater Treatment Wrks Company site name ROUNDHILL STW (CSO) EA ID / permit SVT01910 · S/06/55232/R Outlet location SO8532782749 (OS grid reference) · View on Apple Maps WFD catchment Stour (Worcs) - conf Smestow Bk to conf R Severn (GB109054044710) 2024 spills / hours 19 / 25 Long-term average 15.0 spills a year (monitored since 2024) Investigation Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 25 hours spilling →	River Stour&Gallows Brook	11	25	down 42%	100%
Kingsway Combined Sewer Overflow Overflow on sewer network Company site name BRAUNSTONE - KINGSWAY 10 (CSO) EA ID / permit SVT01283 · T/52/21090/O Outlet location SK5617001040 (OS grid reference) · View on Apple Maps WFD catchment Soar from Sence to Rothley Brook (GB104028047030) 2024 spills / hours 16 / 40 Long-term average 32.3 spills a year (monitored since 2019) Investigation UWWTR investigation completed, Operational investigation completed Improvement Operational improvement completed Volume & pollution Estimate from 25 hours spilling →	Trib of River Soar	6	25	down 63%	99%
CSO at Stapleton SPS Storm discharge at pumping station Company site name STAPLETON - DADLINGTON LANE (SSO) EA ID / permit SVT00707 · T/20/30311/O Outlet location SP4284199052 (OS grid reference) · View on Apple Maps WFD catchment Stoke Golding Brook from Source to R Sence (GB104028046640) 2024 spills / hours 18 / 64 Long-term average 8.3 spills a year (monitored since 2020) Monitor below 90% Installation set-up/design issue · Resolved - Nov Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 25 hours spilling →	Tributary of Sence Brook	8	25	down 56%	44%
Coalville - London Road CSO Overflow on sewer network Company site name COALVILLE - LONDON ROAD (CSO) EA ID / permit SVT00593 · T/20/12234/O Outlet location SK4363813447 (OS grid reference) · View on Apple Maps WFD catchment Sence from Source to Ibstock Brook (GB104028046750) 2024 spills / hours 13 / 19 Long-term average 18.4 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 25 hours spilling →	Tributary of River Sence	12	25	down 8%	100%
Droitwich - Station Road CSO Overflow on sewer network Company site name DROITWICH - STATION ROAD (CSO) EA ID / permit SVT02187 · S/07/21157/O Outlet location SO8707459769 (OS grid reference) · View on Apple Maps WFD catchment Salwarpe - conf Elmbridge Bk to conf R Severn (GB109054044170) 2024 spills / hours 17 / 26 Long-term average 14.8 spills a year (monitored since 2021) Investigation UWWTR investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 25 hours spilling →	Martin Brook	16	25	down 6%	100%
Earl Shilton Sewage Treatment Works Storm tank at sewage works Sewage works Earl Shilton Company site name EARL SHILTON STW (SSTO) EA ID / permit SVT00814 · T/50/45319/R Outlet location SP4758497357 (OS grid reference) · View on Apple Maps WFD catchment Thurlaston Brook Catchment (trib of Soar) (GB104028046940) 2024 spills / hours 2 / 7.0 Long-term average 2.6 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing, Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 25 hours spilling →	Earl Shilton Brook	3	25	up 50%	100%
Scunthorpe - Rochdale Road CSO Overflow on sewer network Company site name SCUNTHORPE - ROCHDALE RD (CSO) EA ID / permit SVT01966 · T/81/46343/O Outlet location SE9065507392 (OS grid reference) · View on Apple Maps WFD catchment Bottesford Beck Catchment (trib of Trent) (GB104028064290) 2024 spills / hours 18 / 20 Long-term average 27.4 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 ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 25 hours spilling →	Bottesford Beck	31	25	up 72%	100%
Various CSO'S -Sutton-in-Ashfield Overflow on sewer network Company site name SKEGBY - COLLIERY VALLEY (CSO) EA ID / permit SVT02393 · EPRHB3995RN Outlet location SK4780058500 (OS grid reference) · View on Apple Maps WFD catchment Meden from Source to Sookholme Brook (GB104028058020) 2024 spills / hours 21 / 23 Long-term average 15.4 spills a year (monitored since 2019) Investigation UWWTR investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 25 hours spilling →	River Meden & Idle/Town Brook	27	25	up 29%	100%
Nottingham Road / Welby Lane CSO Overflow on sewer network Company site name MELTON - NOTTINGHAM RD/WELBY LN (CSO) EA ID / permit SVT01692 · EPRHB3897EL Outlet location SK7466119354 (OS grid reference) · View on Apple Maps WFD catchment Eye / Wreake from Langham Brook to Soar (GB104028047550) 2024 spills / hours 17 / 41 Long-term average 15.7 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 25 hours spilling →	River Wreake	15	25	down 12%	100%
Ray Hall Combined Sewer Overflow Overflow on sewer network Company site name BIRMINGHAM - RAY HALL (CSO) EA ID / permit SVT01871 · NPSWQD010064 Outlet location SP0236094660 (OS grid reference) · View on Apple Maps WFD catchment Tame - conf two arms to R Rea (GB104028046842) 2024 spills / hours 3 / 24 Long-term average 3.1 spills a year (monitored since 2019) Monitor below 90% Sensor failure / issue · Resolved - Oct Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 25 hours spilling →	River Tame	9	25	up 200%	66%
Bescot Crescent CSO Overflow on sewer network Company site name WALSALL - BESCOT CRESCENT (CSO) EA ID / permit SVT00260 · T/08/35325/O Outlet location SP0109096240 (OS grid reference) · View on Apple Maps WFD catchment Tame - conf two arms to R Rea (GB104028046842) 2024 spills / hours 24 / 82 Long-term average 31.6 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 25 hours spilling →	Full Brook	11	25	down 54%	100%
Leek - Junction Road CSO Overflow on sewer network Company site name LEEK - JUNCTION RD (OLD STN YARD) (CSO) EA ID / permit SVT01340 · T/30/03561/O Outlet location SJ9814655205 (OS grid reference) · View on Apple Maps WFD catchment Churnet from Meerbrook to Leekbrook (GB104028052770) 2024 spills / hours 76 / 89 Long-term average 63.0 spills a year (monitored since 2021) High-spill reason (company) Not asset maintenance - Hydraulic capacity Investigation UWWTR investigation completed, Operational investigation completed Improvement Operational improvement completed Volume & pollution Estimate from 25 hours spilling →	Tributary of River Churnet	45	25	down 41%	99%
Pleck - Wolverhampton Road CSO Overflow on sewer network Company site name PLECK - WOLVERHAMPTON ROAD (CSO) EA ID / permit SVT01825 · T/08/35135/O Outlet location SO9921298203 (OS grid reference) · View on Apple Maps WFD catchment Sneyd Brook from Source to Tame (W/hampton Arm) (GB104028046950) 2024 spills / hours 13 / 17 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 25 hours spilling →	Sneyd Brook	12	25	down 8%	100%
Morley Street CSO Overflow on sewer network Company site name LOUGHBOROUGH - MORLEY STREET (CSO) EA ID / permit SVT01588 · T/57/08828/O Outlet location SK5440620098 (OS grid reference) · View on Apple Maps WFD catchment Soar from Rothley Brook to Long Whatton Brook (GB104028047211) 2024 spills / hours 17 / 44 Long-term average 12.4 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 25 hours spilling →	Hermitage Brook	10	25	down 41%	100%
Woodville - Broomy Furlong CSO Overflow on sewer network Company site name WOODVILLE - BROOMY FURLONG (CSO) EA ID / permit SVT02623 · T/36/09236/O Outlet location SK3179120352 (OS grid reference) · View on Apple Maps WFD catchment Repton Brook Catchment (trib of Trent) (GB104028047390) 2024 spills / hours 23 / 137 Long-term average 12.2 spills a year (monitored since 2021) Investigation UWWTR investigation completed, Operational investigation completed Improvement Operational improvement ongoing Volume & pollution Estimate from 25 hours spilling →	Tributary of Repton Brook	6	25	down 74%	100%
Bromsgrove Road CSO Overflow on sewer network Company site name HUNNINGTON - BROMSGROVE ROAD (CSO) EA ID / permit SVT00376 · S/06/21059/O Outlet location SO9652481329 (OS grid reference) · View on Apple Maps WFD catchment Stour (Worcs) source to conf Smestow Bk (GB109054044750) 2024 spills / hours 4 / 0.9 Long-term average 14.0 spills a year (monitored since 2021) Investigation UWWTR investigation completed, Operational investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 25 hours spilling →	Tributary of River Stour	16	25	up 300%	98%
Brookside CSO Overflow on sewer network Company site name BARLESTONE - BROOKSIDE (CSO) EA ID / permit SVT00389 · T/20/35410/O Outlet location SK4293205386 (OS grid reference) · View on Apple Maps WFD catchment Carlton Brook from Source to River Sence (GB104028046690) 2024 spills / hours 11 / 15 Long-term average 11.6 spills a year (monitored since 2019) Investigation UWWTR investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 25 hours spilling →	Tributary of River Sence	15	25	up 36%	100%

Sewage treatment works

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

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