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
Various CSO'S - Areas of Carlton Overflow on sewer network Company site name CARLTON - FOXHILL RD CENTRAL (CSO) EA ID / permit SVT02387 · T/64/08304/O Outlet location SK6220041940 (OS grid reference) · View on Apple Maps WFD catchment Ouse Dyke Catchment (trib of Trent) (GB104028053260) 2024 spills / hours 5 / 0.2 Long-term average 4.2 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 0.0 hours spilling →	Ouse Dyke	1	0.0	down 80%	100%
49 Underdale Rd O/F Overflow on sewer network Company site name SHREWSBURY - UNDERDALE ROAD 49 (CSO) EA ID / permit SVT00006 · S/02/21083/O Outlet location SJ5023013060 (OS grid reference) · View on Apple Maps WFD catchment Severn - conf Bele Bk to conf Sundorne Bk (GB109054049142) 2024 spills / hours 0 / 0.0 Long-term average 0.0 spills a year (monitored since 2023) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period	River Severn	0	0.0	no change	99%
86 Park Hall Road CSO Overflow on sewer network Company site name MANSF. WOODHOUSE - PARK HALL RD 86 (CSO) EA ID / permit SVT00011 · T/71/40173/O Outlet location SK5434664362 (OS grid reference) · View on Apple Maps WFD catchment Meden from Source to Sookholme Brook (GB104028058020) 2024 spills / hours 0 / 0.0 Long-term average 3.1 spills a year (monitored since 2019) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period	Tributary of Leas Brook	0	0.0	no change	100%
Abberley - the Common STW (Ssto) Inlet overflow at sewage works Sewage works Abberley The Common EA ID / permit SVT00014 · S/08/55849/R Outlet location SO7452068040 (OS grid reference) · View on Apple Maps WFD catchment Dick Bk - source to conf R Severn (GB109054044210) 2024 spills / hours 5 / 0.4 Long-term average 22.8 spills a year (monitored since 2020) Investigation UWWTR investigation completed, Operational investigation completed Improvement No improvement action in reporting period	Unnamed Trib of Dick Brook	0	0.0	down 100%	100%
Abbey Hulton-Greasley/Leek Road (CSO) Overflow on sewer network Company site name ABBEY HULTON-GREASLEY RD/LEEK ROAD (CSO) EA ID / permit SVT00018 · Permit application submitted Outlet location SJ9041148703 (OS grid reference) · View on Apple Maps WFD catchment Trent - Ford Green Bk to Fowlea Bk (GB104028053301) 2024 spills / hours 0 / 0.0 Long-term average 0.0 spills a year (monitored since 2023) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period	River Trent	0	0.0	no change	100%
Adderley Road Overflow on sewer network Company site name SALTLEY - ADDERLEY ROAD 264 (CSO) EA ID / permit SVT00027 · DT/9815 Outlet location SP0922088100 (OS grid reference) · View on Apple Maps WFD catchment Rea from Bourn Brook to River Tame (GB104028042550) 2024 spills / hours 5 / 0.9 Long-term average 1.8 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period	River Rea	0	0.0	down 100%	94%
Albert Square CSO Overflow on sewer network Company site name MANSFIELD WOODHOUSE - PARK HALL RD (CSO) EA ID / permit SVT00035 · EPRJB3497VN Outlet location SK5468964117 (OS grid reference) · View on Apple Maps WFD catchment Meden from Source to Sookholme Brook (GB104028058020) 2024 spills / hours 1 / 0.5 Long-term average 1.6 spills a year (monitored since 2021) Investigation Operational investigation completed Improvement Operational improvement completed	Leas Brook	0	0.0	down 100%	99%
Mansf. Woodhouse - Church/High St (CSO) Overflow on sewer network EA ID / permit SVT00036 · EPRJB3497RH Outlet location SK5436463554 (OS grid reference) · View on Apple Maps WFD catchment Meden from Source to Sookholme Brook (GB104028058020) 2024 spills / hours 0 / 0.0 Long-term average 0.0 spills a year (monitored since 2021) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period	Leas Brook	0	0.0	no change	100%
Alcott Grove CSO Overflow on sewer network Company site name TILE CROSS - ALCOTT GROVE (CSO) EA ID / permit SVT00043 · T/12/36417/O Outlet location SP1619087705 (OS grid reference) · View on Apple Maps WFD catchment Cole from Springfield to Hatchford-Kingshurst Brook (GB104028042502) 2024 spills / hours 0 / 0.0 Long-term average 9.0 spills a year (monitored since 2019) Investigation UWWTR investigation completed, Operational investigation completed Improvement Operational improvement completed	River Cole	0	0.0	no change	100%
Anglesey Road CSO Overflow on sewer network Company site name BURTON UPON TRENT - ANGLESEY RD 87 (CSO) EA ID / permit SVT00082 · T/24/21575/O Outlet location SK2539123995 (OS grid reference) · View on Apple Maps WFD catchment Trent - R Tame to R Dove (GB104028047180) 2024 spills / hours 0 / 0.0 Long-term average 0.7 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement No improvement action in reporting period	River Trent	0	0.0	no change	100%
Ardencote Road 24 CSO Overflow on sewer network Company site name KINGS HEATH - ARDENCOTE ROAD 24 (CSO) EA ID / permit SVT00090 · T/12/35459/O Outlet location SP0815080852 (OS grid reference) · View on Apple Maps WFD catchment Cole from Source to Springfield (GB104028042501) 2024 spills / hours 5 / 0.7 Long-term average 3.3 spills a year (monitored since 2020) Investigation Operational investigation completed Improvement No improvement action in reporting period	Tributary of Chinn Brook	0	0.0	down 100%	100%
Areley Kings Pumping Station Storm discharge at pumping station Company site name STOURPORT ON SEVERN - ARELEY KINGS (SSO) EA ID / permit SVT00101 · S/08/55511/O Outlet location SO8063071110 (OS grid reference) · View on Apple Maps WFD catchment Severn - conf R Worfe to conf R Stour (GB109054049145) 2024 spills / hours 8 / 130 Long-term average 34.0 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing, UWWTR investigation completed, Operational investigation completed Improvement Operational improvement ongoing	River Severn	0	0.0	down 100%	100%
Argyle Street Storm discharge at pumping station Company site name NECHELLS - ARGYLE STREET (CSO) EA ID / permit SVT00102 · DT/9774 Outlet location SP0985089910 (OS grid reference) · View on Apple Maps WFD catchment Tame - conf two arms to R Rea (GB104028046842) 2024 spills / hours 0 / 0.0 Long-term average 0.0 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement No improvement action in reporting period	River Tame	0	0.0	no change	100%
Armitage Road Pumping Station Storm discharge at pumping station Company site name RUGELEY - ARMITAGE ROAD (SSO) EA ID / permit SVT00103 · T/05/35793/O Outlet location SK0580016300 (OS grid reference) · View on Apple Maps WFD catchment Trent from Moreton Brook to River Tame (GB104028047290) 2024 spills / hours 3 / 2.9 Long-term average 4.5 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement No improvement action in reporting period	River Trent (Non Tidal Trib)	0	0.0	down 100%	100%
Armitage Road Pumping Station Overflow on sewer network Company site name RUGELEY - BRERETON PARK (CSO) EA ID / permit SVT00105 · T/05/03401/O Outlet location SK0530016900 (OS grid reference) · View on Apple Maps WFD catchment Trent from Moreton Brook to River Tame (GB104028047290) 2024 spills / hours 1 / 0.1 Long-term average 0.5 spills a year (monitored since 2020) Investigation Operational investigation completed Improvement No improvement action in reporting period	River Trent (Non Tidal Trib)	0	0.0	down 100%	100%
Asfordby,Kirby Bellars,Rotherby Pss Storm discharge at pumping station Company site name KIRBY BELLARS - WASHDYKE LANE (CSO) EA ID / permit SVT00114 · T/55/02241/O Outlet location SK7190018000 (OS grid reference) · View on Apple Maps WFD catchment Eye / Wreake from Langham Brook to Soar (GB104028047550) 2024 spills / hours 10 / 109 Long-term average 9.3 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing, Operational investigation completed Improvement Operational improvement completed	River Wreake	0	0.0	down 100%	100%
Stoke-on-Trent - Ash Green Close (CSO) Overflow on sewer network EA ID / permit SVT00116 · EPRJB3396AZ Outlet location SJ8724441077 (OS grid reference) · View on Apple Maps WFD catchment Longton Bk - source to R Trent (GB104028053273) 2024 spills / hours 4 / 3.0 Long-term average 10.2 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing, Operational investigation completed Improvement No improvement action in reporting period	Longton Brook	0	0.0	down 100%	100%
Ashby Folville STW Storm tank at sewage works Sewage works Ashby Folville Company site name ASHBY FOLVILLE STW (SSTO) EA ID / permit SVT00121 · T/55/45649/R Outlet location SK7020812305 (OS grid reference) · View on Apple Maps WFD catchment Queniborough Brook Catchment (trib of Wreake) (GB104028047450) 2024 spills / hours 29 / 184 Long-term average 41.0 spills a year (monitored since 2021) Investigation UWWTR investigation ongoing, Operational investigation completed Improvement Operational improvement completed	Gaddesby Brook	0	0.0	down 100%	99%
Ashby Rd/Stapenhill Rd Jcn SSO Overflow on sewer network Company site name BURTON UPON TRENT - ASHBY RD (CSO) EA ID / permit SVT00123 · T/24/22286/O Outlet location SK2574023230 (OS grid reference) · View on Apple Maps WFD catchment Trent - R Tame to R Dove (GB104028047180) 2024 spills / hours 0 / 0.0 Long-term average 0.0 spills a year (monitored since 2023) Monitor below 90% Installation set-up/design issue · Resolved - January after reporting year Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period	River Trent	–	–		0%
Ashton Under Hill STW Storm tank at sewage works Sewage works Ashton Under Hill Company site name ASHTON UNDER HILL STW (CSO) EA ID / permit SVT00132 · S/17/26154/R Outlet location SO9999937308 (OS grid reference) · View on Apple Maps WFD catchment Carrant Bk - source to conf R Avon (GB109054039851) 2024 spills / hours 0 / 0.0 Long-term average 1.4 spills a year (monitored since 2021) Investigation Operational investigation completed Improvement No improvement action in reporting period	Carrant Brook	0	0.0	no change	100%
Aspley - Amersham Rise (CSO) Overflow on sewer network EA ID / permit SVT00135 · Permit application submitted Outlet location SK5421341815 (OS grid reference) · View on Apple Maps WFD catchment Leen from Day Brook to Trent (GB104028053250) 2024 spills / hours 0 / 0.0 Long-term average 0.0 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement No improvement action in reporting period	River Leen	0	0.0	no change	91%
Aston - Chester Street (CSO) Overflow on sewer network EA ID / permit SVT00138 · Permit application submitted Outlet location SP0744288641 (OS grid reference) · View on Apple Maps WFD catchment Hockley Brook Catchment (trib of Rea) (GB104028042640) 2024 spills / hours 0 / 0.0 Long-term average 0.5 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement No improvement action in reporting period	Hockley Brook	0	0.0	no change	96%
Aston-Aston Church Road (CSO) Overflow on sewer network EA ID / permit SVT00142 · Permit application submitted Outlet location SP0956389040 (OS grid reference) · View on Apple Maps WFD catchment Rea from Bourn Brook to River Tame (GB104028042550) 2024 spills / hours 0 / 0.0 Long-term average 0.0 spills a year (monitored since 2022) Investigation Env Act (SODRP) investigation ongoing, Operational investigation ongoing Improvement No improvement action in reporting period	River Rea	0	0.0	no change	92%
Averham - Church Lane SPS Storm discharge at pumping station Company site name AVERHAM - CHURCH LANE (CSO) EA ID / permit SVT00151 · T/68/00222/O Outlet location SK7655454448 (OS grid reference) · View on Apple Maps WFD catchment Trent Bifurcation Pingley Dyke to Winthorpe (GB104028053390) 2024 spills / hours 0 / 0.0 Long-term average 0.4 spills a year (monitored since 2021) Monitor below 90% No longer operational as an overflow - permit revoked or to be revoked · Overflow no longer spilling to environment - from May Investigation Operational investigation completed Improvement No improvement action in reporting period	Tributary of River Trent	0	0.0	no change	66%
Awsworth - the Glebe (CSO) Overflow on sewer network EA ID / permit SVT00152 · Permit application submitted Outlet location SK4758943590 (OS grid reference) · View on Apple Maps WFD catchment Erewash from Gilt Brook to Trent (GB104028052480) 2024 spills / hours 2 / 0.3 Long-term average 1.7 spills a year (monitored since 2023) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period	Nottingham Canal (Disused)	0	0.0	down 100%	100%
Market Street CSO Overflow on sewer network Company site name BAKEWELL - MARKET STREET (CSO) EA ID / permit SVT00159 · T/39/45883/O Outlet location SK2250467592 (OS grid reference) · View on Apple Maps WFD catchment Wye from Monk's Dale to Derwent (GB104028057820) 2024 spills / hours 9 / 6.5 Long-term average 5.8 spills a year (monitored since 2020) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period	River Wye	0	0.0	down 100%	100%
Bakewell Road / Dimple Road CSO Overflow on sewer network Company site name MATLOCK - BAKEWELL ROAD/DIMPLE RD (CSO) EA ID / permit SVT00160 · DT/2168 Outlet location SK2962360351 (OS grid reference) · View on Apple Maps WFD catchment Derwent from Wye to Amber (GB104028052390) 2024 spills / hours 1 / 0.3 Long-term average 13.2 spills a year (monitored since 2017) Investigation UWWTR investigation completed, Operational investigation completed Improvement No improvement action in reporting period	River Derwent	0	0.0	down 100%	100%
Ballinson Road CSO Overflow on sewer network Company site name BLURTON - BALLINSON ROAD (CSO) EA ID / permit SVT00164 · T/01/30151/O Outlet location SJ8899142570 (OS grid reference) · View on Apple Maps WFD catchment Longton Bk - source to R Trent (GB104028053273) 2024 spills / hours 0 / 0.0 Long-term average 1.5 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement No improvement action in reporting period	Longton Brook	0	0.0	no change	100%
Balsall Heath-Balsall Heath Rd CSO Overflow on sewer network Company site name BALSALL HEATH - BALSALL HEATH ROAD (CSO) EA ID / permit SVT00167 · DT/9839 Outlet location SP0727985020 (OS grid reference) · View on Apple Maps WFD catchment Rea from Bourn Brook to River Tame (GB104028042550) 2024 spills / hours 0 / 0.0 Long-term average 0.0 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement No improvement action in reporting period	River Rea	0	0.0	no change	100%
Balsall Heath - Mary Street CSO Overflow on sewer network Company site name BALSALL HEATH - MARY STREET (CSO) EA ID / permit SVT00168 · DT/9841 Outlet location SP0695584551 (OS grid reference) · View on Apple Maps WFD catchment Rea from Bourn Brook to River Tame (GB104028042550) 2024 spills / hours 0 / 0.0 Long-term average 0.2 spills a year (monitored since 2021) Monitor below 90% Comms failure / issue · Resolved - Apr Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement No improvement action in reporting period	River Rea	0	0.0	no change	71%
Barnt Green - Woodend Drive (SSO) Storm discharge at pumping station EA ID / permit SVT00184 · Permit application submitted Outlet location SO9926273802 (OS grid reference) · View on Apple Maps WFD catchment Spadesbourne Bk - source to conf Battlefield Bk (GB109054044230) 2024 spills / hours 0 / 0.0 Long-term average 0.3 spills a year (monitored since 2023) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period	Unnamed Tributary of the Spadesbourne Brook	0	0.0	no change	100%
Bath Rd-Station Rd CSO Overflow on sewer network Company site name WOODCHESTER - BATH RD/STATION RD (CSO) EA ID / permit SVT00200 · S/22/20979/O Outlet location SO8415202263 (OS grid reference) · View on Apple Maps WFD catchment Nailsworth Stream - source to conf R Frome (GB109054026531) 2024 spills / hours 0 / 0.0 Long-term average 0.0 spills a year (monitored since 2021) Investigation Operational investigation ongoing Improvement No improvement action in reporting period	Nailsworth Stream	0	0.0	no change	100%
Bean Road CSO Overflow on sewer network Company site name TIPTON - BEAN ROAD (CSO) EA ID / permit SVT00214 · T/08/22104/O Outlet location SO9471292900 (OS grid reference) · View on Apple Maps WFD catchment Tame (Oldbury Arm) - source to conf R Tame (Wton Arm) (GB104028042601) 2024 spills / hours 0 / 0.0 Long-term average 0.0 spills a year (monitored since 2019) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement No improvement action in reporting period	Tributary of Swan Brook	0	0.0	no change	100%
Beard'S Lane CSO Overflow on sewer network Company site name STROUD - BEARDS LANE (SDC 30) (CSO) EA ID / permit SVT00215 · S/22/04828/O Outlet location SO8413405066 (OS grid reference) · View on Apple Maps WFD catchment Frome - source to Ebley Mill (GB109054032470) 2024 spills / hours 2 / 0.5 Long-term average 1.3 spills a year (monitored since 2019) Investigation Operational investigation completed Improvement No improvement action in reporting period	River Frome	0	0.0	down 100%	96%
Bedworth Road CSO Inlet overflow at sewage works Sewage works Bedworth Road Company site name BULKINGTON - BEDWORTH ROAD (CSO) EA ID / permit SVT00228 · T/19/01498/O Outlet location SP3840786599 (OS grid reference) · View on Apple Maps WFD catchment Wem Brook from Source to River Anker (GB104028042430) 2024 spills / hours 0 / 0.0 Long-term average 0.2 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement Operational improvement ongoing	Tributary of Wem Brook	0	0.0	no change	100%
Beechwood Avenue Pumping Station Storm discharge at pumping station Company site name LEICESTER FOREST E - BEECHWOOD AVE (CSO) EA ID / permit SVT00231 · T/52/40157/O Outlet location SK5330003800 (OS grid reference) · View on Apple Maps WFD catchment Soar from Sence to Rothley Brook (GB104028047030) 2024 spills / hours 0 / 0.0 Long-term average 0.3 spills a year (monitored since 2020) Investigation Operational investigation completed Improvement No improvement action in reporting period	Trib of Rothley Brook	0	0.0	no change	100%
Belchers Bar Pumping Station Storm discharge at pumping station Company site name IBSTOCK - BELCHERS BAR (SSO) EA ID / permit SVT00235 · T/20/02945/O Outlet location SK4040009000 (OS grid reference) · View on Apple Maps WFD catchment Ibstock Brook from Source to River Sence (GB104028046700) 2024 spills / hours 0 / 0.0 Long-term average 0.0 spills a year (monitored since 2021) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period	Trib of River Sence (Soar)	0	0.0	no change	96%
Belper - Belper Lane (CSO) Overflow on sewer network EA ID / permit SVT00241 · Permit application submitted Outlet location SK3444248130 (OS grid reference) · View on Apple Maps WFD catchment Derwent from Amber to Bottle Brook (GB104028052310) 2024 spills / hours 1 / 0.4 Long-term average 0.3 spills a year (monitored since 2022) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period	River Derwent	0	0.0	down 100%	99%
Belper - Marsh Lane 1 (CSO) Overflow on sewer network EA ID / permit SVT00244 · Permit application submitted Outlet location SK3603547752 (OS grid reference) · View on Apple Maps WFD catchment Derwent from Amber to Bottle Brook (GB104028052310) 2024 spills / hours 0 / 0.0 Long-term average 0.0 spills a year (monitored since 2022) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period	Coppice Brook	0	0.0	no change	100%
Belper - Marsh Lane 2 (CSO) Overflow on sewer network EA ID / permit SVT00245 · Permit application submitted Outlet location SK3603547752 (OS grid reference) · View on Apple Maps WFD catchment Derwent from Amber to Bottle Brook (GB104028052310) 2024 spills / hours 0 / 0.0 Long-term average 0.0 spills a year (monitored since 2022) Investigation Operational investigation completed Improvement No improvement action in reporting period	Coppice Brook	0	0.0	no change	100%
Belper - Marsh Lane 3 (CSO) Overflow on sewer network EA ID / permit SVT00246 · Permit application submitted Outlet location SK3603547752 (OS grid reference) · View on Apple Maps WFD catchment Derwent from Amber to Bottle Brook (GB104028052310) 2024 spills / hours 0 / 0.0 Long-term average 0.0 spills a year (monitored since 2022) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period	Coppice Brook	0	0.0	no change	100%
Belper - Marsh Lane 4 (CSO) Overflow on sewer network EA ID / permit SVT00247 · Permit application submitted Outlet location SK3603547752 (OS grid reference) · View on Apple Maps WFD catchment Derwent from Amber to Bottle Brook (GB104028052310) 2024 spills / hours 0 / 0.0 Long-term average 0.0 spills a year (monitored since 2022) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period	Coppice Brook	0	0.0	no change	100%
Belper - Wheeldon Avenue (CSO) Overflow on sewer network EA ID / permit SVT00249 · Permit application submitted Outlet location SK3603647752 (OS grid reference) · View on Apple Maps WFD catchment Derwent from Amber to Bottle Brook (GB104028052310) 2024 spills / hours 0 / 0.0 Long-term average 0.3 spills a year (monitored since 2022) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period	Coppice Brook	0	0.0	no change	100%
Benton Green -Benton Green Lane SPS Storm discharge at pumping station Company site name BENTON GREEN - BENTON GREEN LANE (SSO) EA ID / permit SVT00255 · T/11/12330/O Outlet location SP2545378938 (OS grid reference) · View on Apple Maps WFD catchment Blythe from Temple Balsall Brook to Patrick Bridge (GB104028042571) 2024 spills / hours 5 / 50 Long-term average 1.0 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing, Operational investigation ongoing Improvement No improvement action in reporting period	Tributary of River Blythe	0	0.0	down 100%	100%
Berry Hill Overflow on sewer network Company site name BERRY HILL - VICTORIA STREET (CSO) EA ID / permit SVT00258 · T/01/21502/O Outlet location SJ8878045910 (OS grid reference) · View on Apple Maps WFD catchment Trent - Ford Green Bk to Fowlea Bk (GB104028053301) 2024 spills / hours 0 / 0.0 Long-term average 0.0 spills a year (monitored since 2023) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period	River Trent	0	0.0	no change	100%
Birch Drive CSO Overflow on sewer network Company site name STOURBRIDGE - BIRCH DRIVE (CSO) EA ID / permit SVT00268 · S/06/21183/O Outlet location SO8953884771 (OS grid reference) · View on Apple Maps WFD catchment Stour (Worcs) source to conf Smestow Bk (GB109054044750) 2024 spills / hours 0 / 0.0 Long-term average 0.2 spills a year (monitored since 2020) Monitor below 90% Installation set-up/design issue · Resolved - Oct Investigation Operational investigation completed Improvement No improvement action in reporting period	River Stour	0	0.0	no change	17%
Birmingham Road Storm Overflow Overflow on sewer network Company site name WATER ORTON - BIRMINGHAM ROAD (CSO) EA ID / permit SVT00275 · T/10/22019/O Outlet location SP1739091140 (OS grid reference) · View on Apple Maps WFD catchment Tame - R Rea to R Blythe (GB104028046841) 2024 spills / hours 5 / 2.0 Long-term average 2.0 spills a year (monitored since 2023) Investigation Env Act (SODRP) investigation ongoing, Operational investigation ongoing Improvement No improvement action in reporting period	Trib of River Tame	0	0.0	down 100%	100%
Bishops Castle - Union Street CSO Overflow on sewer network Company site name BISHOPS CASTLE - UNION STREET (CSO) EA ID / permit SVT00278 · S/09/21721/O Outlet location SO3257288462 (OS grid reference) · View on Apple Maps WFD catchment Snakescroft Bk (GB109054044061) 2024 spills / hours 34 / 376 Long-term average 87.5 spills a year (monitored since 2021) Monitor below 90% No longer operational as an overflow - permit revoked or to be revoked · Overflow no longer spilling to environment - from Jan Investigation UWWTR investigation completed Improvement No improvement action in reporting period	Tributary of River Kemp	–	–		–
Blaby - West Street Storm Tanks (CSO) Overflow on sewer network EA ID / permit SVT00280 · Unpermitted Outlet location SP5640798238 (OS grid reference) · View on Apple Maps WFD catchment Sence from Countesthorpe Brook to Soar (GB104028046870) 2024 spills / hours 0 / 0.0 Long-term average 0.0 spills a year (monitored since 2022) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period	River Sence	0	0.0	no change	100%
Blidworth - Dale Lane-Park Ave CSO Overflow on sewer network Company site name BLIDWORTH - DALE LANE/PARK AVENUE (CSO) EA ID / permit SVT00292 · T/64/46425/OG Outlet location SK6077256221 (OS grid reference) · View on Apple Maps WFD catchment Greet Catchment (trib of Trent) (GB104028053410) 2024 spills / hours 0 / 0.0 Long-term average 1.2 spills a year (monitored since 2021) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period	Groundwater via Infiltration	0	0.0	no change	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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