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
Hoobrook Sewage Pumping Station Storm discharge at pumping station Company site name KIDDERMINSTER - HOOBROOK PS (STW) (CSO) EA ID / permit SVT01174 · S/06/55076/O Outlet location SO8298074660 (OS grid reference) · View on Apple Maps WFD catchment Stour (Worcs) - conf Smestow Bk to conf R Severn (GB109054044710) 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	River Stour	0	0.0	no change	100%
Hopyard Lane/Straights Rd Jct CSO Overflow on sewer network Company site name GORNAL WOOD -STRAITS RD/HOPYARD LA (CSO) EA ID / permit SVT01176 · S/06/21304/O Outlet location SO9068891284 (OS grid reference) · View on Apple Maps WFD catchment Bobs-Holbeche Bk - source to conf Smestow Bk (GB109054044830) 2024 spills / hours 1 / 0.0 Long-term average 0.2 spills a year (monitored since 2020) Investigation Operational investigation completed Improvement Operational improvement completed	Tributary of Smestow Brook	0	0.0	down 100%	100%
Nottingham - Longford Cresent (CSO) Overflow on sewer network Company site name NOTTINGHAM - LONGFORD CRESCENT (CSO) EA ID / permit SVT01187 · EPRJB3791EE Outlet location SK5439846125 (OS grid reference) · View on Apple Maps WFD catchment Leen from Source to Day Brook (GB104028052880) 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	River Leen	0	0.0	no change	100%
Hucknall Nabbs Lane CSO Overflow on sewer network Company site name HUCKNALL - NABBS LANE (CSO) EA ID / permit SVT01188 · T/63/03780/O Outlet location SK5194548446 (OS grid reference) · View on Apple Maps WFD catchment Leen from Source to Day Brook (GB104028052880) 2024 spills / hours 14 / 10 Long-term average 4.0 spills a year (monitored since 2021) Investigation Operational investigation ongoing Improvement No improvement action in reporting period	Tributary of River Leen	0	0.0	down 100%	100%
Hugglescote Station Road CSO Overflow on sewer network Company site name HUGGLESCOTE - STATION ROAD (CSO) EA ID / permit SVT01189 · T/20/12374/O Outlet location SK4521212374 (OS grid reference) · View on Apple Maps WFD catchment Sence from Source to Ibstock Brook (GB104028046750) 2024 spills / hours 10 / 13 Long-term average 6.0 spills a year (monitored since 2022) Investigation Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing Improvement No improvement action in reporting period	River Sence	0	0.0	down 100%	100%
Huncote Overflow on sewer network Company site name HUNCOTE - FOREST RD/EUNICE AVENUE (CSO) EA ID / permit SVT01193 · DT/8047 Outlet location SP5170097400 (OS grid reference) · View on Apple Maps WFD catchment Thurlaston Brook Catchment (trib of Soar) (GB104028046940) 2024 spills / hours 0 / 0.0 Long-term average 0.0 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period	Thurlaston Brook (River Soar)	0	0.0	no change	100%
Manholes Overflow on sewer network Company site name ILKESTON - NELSON STREET (CSO) EA ID / permit SVT01205 · T/61/01787/O Outlet location SK4710043100 (OS grid reference) · View on Apple Maps WFD catchment Erewash from Gilt Brook to Trent (GB104028052480) 2024 spills / hours 0 / 0.0 Long-term average 0.1 spills a year (monitored since 2019) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement No improvement action in reporting period	River Erewash	0	0.0	no change	100%
Ipstones CSO Overflow on sewer network Company site name IPSTONES - BROOKFIELDS ROAD (CSO) EA ID / permit SVT01211 · T/30/01383/O Outlet location SK0227749709 (OS grid reference) · View on Apple Maps WFD catchment Churnet from Consall to River Dove (GB104028052652) 2024 spills / hours 0 / 0.0 Long-term average 3.3 spills a year (monitored since 2019) Investigation UWWTR investigation completed Improvement No improvement action in reporting period	Trib of Blackbank Brook	0	0.0	no change	97%
Ironbridge - New Road 1 Overflow on sewer network EA ID / permit SVT01214 · Permit application submitted Outlet location SJ6702703524 (OS grid reference) · View on Apple Maps WFD catchment Severn conf M Wenlock-Farley Bk to conf R Worfe (GB109054049143) 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 Severn	0	0.0	no change	100%
Ironbridge - New Road 2 Overflow on sewer network EA ID / permit SVT01215 · Permit application submitted Outlet location SJ6702703524 (OS grid reference) · View on Apple Maps WFD catchment Severn conf M Wenlock-Farley Bk to conf R Worfe (GB109054049143) 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 Severn	0	0.0	no change	100%
Ironbridge - St. Lukes Road (MH4501) Overflow on sewer network EA ID / permit SVT01216 · Unpermitted Outlet location SJ6760803336 (OS grid reference) · View on Apple Maps WFD catchment Severn conf M Wenlock-Farley Bk to conf R Worfe (GB109054049143) 2024 spills / hours 0 / 0.0 Long-term average 0.2 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement No improvement action in reporting period	River Severn	0	0.0	no change	100%
Ironbridge - Waterloo Street (CSO) Storm discharge at pumping station EA ID / permit SVT01217 · Permit application submitted Outlet location SJ6802103333 (OS grid reference) · View on Apple Maps WFD catchment Severn conf M Wenlock-Farley Bk to conf R Worfe (GB109054049143) 2024 spills / hours 4 / 61 Long-term average 2.8 spills a year (monitored since 2019) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement No improvement action in reporting period	Oldcotes Dyke	0	0.0	down 100%	100%
Ironbridge - Madeley Road (CSO) Overflow on sewer network EA ID / permit SVT01219 · Unpermitted Outlet location SJ6764703338 (OS grid reference) · View on Apple Maps WFD catchment Severn conf M Wenlock-Farley Bk to conf R Worfe (GB109054049143) 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 Severn	0	0.0	no change	98%
Edgbaston-Islington Row/Middleway (CSO) Overflow on sewer network EA ID / permit SVT01222 · EPRJB3792EW Outlet location SP0739685240 (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 4.0 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%
Jacques Brickyard CSO Overflow on sewer network Company site name SOUTH NORMANTON - WATER LANE (CSO) EA ID / permit SVT01227 · T/41/03160/O Outlet location SK4483356878 (OS grid reference) · View on Apple Maps WFD catchment Alfreton Brook from Source to Westwood Brook (GB104028052350) 2024 spills / hours 0 / 0.0 Long-term average 5.9 spills a year (monitored since 2019) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period	Trib of Normanton Brook	0	0.0	no change	100%
Jnct of Bell Rd / Birmingham Rd CSO Overflow on sewer network Company site name WALSALL - BIRMINGHAM RD (THE BELL) (CSO) EA ID / permit SVT01232 · T/08/03428/O Outlet location SP0355096427 (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 0.9 spills a year (monitored since 2019) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement No improvement action in reporting period	Tributary of Full Brook	0	0.0	no change	95%
Kempsey STW Storm tank at sewage works Sewage works Kempsey Company site name KEMPSEY WORKS STW (SSTO) EA ID / permit SVT01244 · S/08/26590/R Outlet location SO8422048180 (OS grid reference) · View on Apple Maps WFD catchment Severn - conf R Teme to conf R Avon (GB109054039760) 2024 spills / hours 0 / 0.0 Long-term average 0.2 spills a year (monitored since 2020) Investigation Operational investigation completed Improvement No improvement action in reporting period	River Severn	0	0.0	no change	100%
Kidderminster - Church Street (CSO) Overflow on sewer network EA ID / permit SVT01253 · Unpermitted Outlet location SO8301276832 (OS grid reference) · View on Apple Maps WFD catchment Stour (Worcs) - conf Smestow Bk to conf R Severn (GB109054044710) 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	River Stour	0	0.0	no change	100%
Kidderminster Bewdley Road CSO Overflow on sewer network Company site name KIDDERMINSTER - BEWDLEY ROAD (CSO) EA ID / permit SVT01255 · S/06/12206/O Outlet location SO8273476863 (OS grid reference) · View on Apple Maps WFD catchment Stour (Worcs) - conf Smestow Bk to conf R Severn (GB109054044710) 2024 spills / hours 2 / 1.2 Long-term average 1.6 spills a year (monitored since 2021) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period	River Stour	0	0.0	down 100%	100%
King St-Strutt St CSO Overflow on sewer network Company site name BELPER - KING STREET/STRUTT STREET (CSO) EA ID / permit SVT01271 · T/42/20919/O Outlet location SK3466047150 (OS grid reference) · View on Apple Maps WFD catchment Derwent from Amber to Bottle Brook (GB104028052310) 2024 spills / hours 1 / 0.3 Long-term average 1.0 spills a year (monitored since 2020) Investigation Operational investigation completed Improvement No improvement action in reporting period	Coppice Brook	0	0.0	down 100%	100%
Yardley Wood Road CSO Overflow on sewer network Company site name KINGS HEATH - YARDLEY WOOD ROAD (CSO) EA ID / permit SVT01273 · NPSWQD006693 Outlet location SP0868179977 (OS grid reference) · View on Apple Maps WFD catchment Cole from Source to Springfield (GB104028042501) 2024 spills / hours 75 / 189 Long-term average 46.0 spills a year (monitored since 2023) Monitor below 90% Installation set-up/design issue · Resolved - Mar Investigation UWWTR investigation completed, Operational investigation completed Improvement Operational improvement completed	Chinn Brook	0	0.0	down 100%	81%
Kings Stanley - Ryeford Rd South (CSO) Overflow on sewer network EA ID / permit SVT01279 · Permit application submitted Outlet location SO8121804233 (OS grid reference) · View on Apple Maps WFD catchment Frome - Ebley Mill to conf R Severn (GB109054032450) 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 Frome	0	0.0	no change	98%
Kingston Road Overflow on sewer network Company site name BORDESLEY - KINGSTON ROAD (CSO) EA ID / permit SVT01282 · T/09/21544/O Outlet location SP0824086940 (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 1.3 spills a year (monitored since 2023) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period	River Rea	0	0.0	no change	100%
Kinver STW Storm tank at sewage works Sewage works Kinver Company site name KINVER (STW) EA ID / permit SVT01285 · S/06/55384/R Outlet location SO8523382347 (OS grid reference) · View on Apple Maps WFD catchment Stour (Worcs) - conf Smestow Bk to conf R Severn (GB109054044710) 2024 spills / hours 1 / 6.7 Long-term average 2.5 spills a year (monitored since 2020) Investigation Operational investigation completed Improvement No improvement action in reporting period	River Stour	0	0.0	down 100%	100%
Kneeton Sewage Treatment Works Inlet overflow at sewage works Sewage works Kneeton Company site name KNEETON (CSO) EA ID / permit SVT01301 · T/67/45313/R Outlet location SK7148346284 (OS grid reference) · View on Apple Maps WFD catchment Beck Dyke from Source to Car Dyke (GB104028052550) 2024 spills / hours 1 / 3.2 Long-term average 1.6 spills a year (monitored since 2021) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period	Beck Dyke	0	0.0	down 100%	100%
Knutton - Cotswold Avenue PS (CSO) Storm discharge at pumping station EA ID / permit SVT01304 · Permit application submitted Outlet location SJ8353647222 (OS grid reference) · View on Apple Maps WFD catchment Lyme Brook Catchment (trib of Trent) (GB104028053340) 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	Day Brook	0	0.0	no change	100%
Langar - Cropwell Road CSO Overflow on sewer network Company site name LANGAR - CROPWELL ROAD (CSO) EA ID / permit SVT01310 · EPRJB3993VV Outlet location SK7217334340 (OS grid reference) · View on Apple Maps WFD catchment Stroom Dyke Catchment (trib of Smite) Water Body (GB104028053030) 2024 spills / hours 0 / 0.0 Monitor below 90% No longer operational as an overflow - permit revoked or to be revoked · Overflow no longer spilling to environment - from Jan Investigation No investigation activity in reporting period Improvement No improvement action in reporting period	Stroom Dyke	–	–		–
Langley Mill - Cromford Road CSO Overflow on sewer network Company site name LANGLEY MILL - CROMFORD RD (CSO) EA ID / permit SVT01315 · T/61/21599/O Outlet location SK4363248185 (OS grid reference) · View on Apple Maps WFD catchment Erewash from Source to Nethergreen Brook (GB104028052740) 2024 spills / hours 4 / 1.9 Long-term average 4.2 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period	Tributary of River Erewash	0	0.0	down 100%	99%
Langwith - the Woodlands (CSO&EO) Storm discharge at pumping station EA ID / permit SVT01319 · Permit application submitted Outlet location SK5342071301 (OS grid reference) · View on Apple Maps WFD catchment Poulter from Source to Millwood Brook (GB104028058130) 2024 spills / hours 1 / 2.7 Long-term average 0.7 spills a year (monitored since 2023) Investigation Operational investigation completed Improvement No improvement action in reporting period	Dry Ditch	0	0.0	down 100%	98%
Latherford Lane SPS Storm discharge at pumping station Company site name CALF HEATH - LATHERFORD LANE (SSO) EA ID / permit SVT01321 · Permit application submitted Outlet location SJ9362508417 (OS grid reference) · View on Apple Maps WFD catchment Saredon Brook from Source to River Penk (GB104028046740) 2024 spills / hours 5 / 17 Long-term average 3.6 spills a year (monitored since 2019) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement Operational improvement completed	Goldie Brook	0	0.0	down 100%	99%
Leamington SSO 11 and 12 Overflow on sewer network Company site name LEAMINGTON - PRIORY TERRACE/MILL ST (CSO) EA ID / permit SVT01332 · S/12/20258/O Outlet location SP3210065520 (OS grid reference) · View on Apple Maps WFD catchment Leam - conf R Itchen to conf R Avon (GB109054044140) 2024 spills / hours 1 / 0.5 Long-term average 0.3 spills a year (monitored since 2019) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement No improvement action in reporting period	River Leam	0	0.0	down 100%	100%
Leeming Lane CSO Overflow on sewer network Company site name MANSF. WOODHOUSE - WARSOP RD (CSO) EA ID / permit SVT01345 · T/71/46331/O Outlet location SK5467164074 (OS grid reference) · View on Apple Maps WFD catchment Meden from Source to Sookholme Brook (GB104028058020) 2024 spills / hours 3 / 2.2 Long-term average 0.4 spills a year (monitored since 2019) Investigation Operational investigation completed Improvement UWWTR improvement completed, Operational improvement completed	Tributary of Leas Brook	0	0.0	down 100%	100%
Leicester Forest East - Somerfield Way (CSO) Overflow on sewer network EA ID / permit SVT01346 · Permit application submitted Outlet location SK5335302462 (OS grid reference) · View on Apple Maps WFD catchment Lubbesthorpe Brook Catchment (trib of Soar) (GB104028046920) 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	Lubbesthorpe Brook	0	0.0	no change	100%
Lewis Close Pumping Station Storm discharge at pumping station Company site name DRAKES BROUGHTON - LEWIS CLOSE (SSO) EA ID / permit SVT01352 · S/19/26045/O Outlet location SO9296048970 (OS grid reference) · View on Apple Maps WFD catchment Bow Bk - Shell to conf R Avon (GB109054043712) 2024 spills / hours 22 / 194 Long-term average 13.5 spills a year (monitored since 2020) Monitor below 90% Comms failure / issue · Resolved - Feb Investigation UWWTR investigation ongoing, Operational investigation completed Improvement No improvement action in reporting period	Tributary of Bow Brook	0	0.0	down 100%	88%
St John Street CSO Overflow on sewer network Company site name LICHFIELD - ST JOHN ST (HOSPITAL) (CSO) EA ID / permit SVT01355 · Permit application submitted Outlet location SK1217610186 (OS grid reference) · View on Apple Maps WFD catchment Pyford Brook Catchment (trib of Trent) (GB104028047250) 2024 spills / hours 0 / 0.0 Long-term average 0.0 spills a year (monitored since 2021) Investigation Operational investigation completed Improvement No improvement action in reporting period	Trib Curborough Brook via SWS	0	0.0	no change	100%
Lichfield - the Friary (CSO) Overflow on sewer network EA ID / permit SVT01356 · EPRJB3997EG Outlet location SK1217410186 (OS grid reference) · View on Apple Maps WFD catchment Pyford Brook Catchment (trib of Trent) (GB104028047250) 2024 spills / hours 5 / 1.4 Long-term average 1.2 spills a year (monitored since 2021) Investigation Operational investigation completed Improvement No improvement action in reporting period	River Erewash	0	0.0	down 100%	97%
Lichfield Road CSO Overflow on sewer network Company site name SALFORD CIRCUS - LICHFIELD ROAD (CSO) EA ID / permit SVT01357 · T/08/35258/O Outlet location SP0956190084 (OS grid reference) · View on Apple Maps WFD catchment Tame - conf two arms to R Rea (GB104028046842) 2024 spills / hours 1 / 0.1 Long-term average 9.0 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	River Tame	0	0.0	down 100%	100%
Lightwood Road Overflow on sewer network Company site name LIGHTWOOD - LIGHTWOOD ROAD (CSO) EA ID / permit SVT01363 · T/01/30152/O Outlet location SJ9240041010 (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 0.3 spills a year (monitored since 2022) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period	Longton Brook	0	0.0	no change	100%
Little Eaton SPS - Stm/Emergency of Storm discharge at pumping station Company site name LITTLE EATON - ALFRETON RD (CSO) EA ID / permit SVT01376 · T/45/12100/O Outlet location SK3604040930 (OS grid reference) · View on Apple Maps WFD catchment Bottle Brook Catchment (trib of Derwent) (GB104028052300) 2024 spills / hours 0 / 0.0 Long-term average 3.5 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement Operational improvement ongoing	Bottle Brook	0	0.0	no change	100%
Little Stretton STW Inlet overflow at sewage works Sewage works Little Stretton Company site name LITTLE STRETTON (STW) EA ID / permit SVT01381 · T/51/46383/R Outlet location SK6673600360 (OS grid reference) · View on Apple Maps WFD catchment Sence from Source to Burton Brook (GB104028046650) 2024 spills / hours 0 / 0.0 Long-term average 10.6 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	River Sence	0	0.0	no change	100%
Littledean STW Storm tank at sewage works Sewage works Littledean Company site name LITTLEDEAN STW (SSTO) EA ID / permit SVT01382 · S/20/26168/R Outlet location SO6817714013 (OS grid reference) · View on Apple Maps WFD catchment Severn River and Trib Estuary (GB530905415403) 2024 spills / hours 0 / 0.0 Long-term average 0.2 spills a year (monitored since 2021) Investigation Operational investigation completed Improvement No improvement action in reporting period	Tributary of Westbury Brook	0	0.0	no change	100%
Bordesley - Liverpool Street CSO Overflow on sewer network Company site name BORDESLEY - LIVERPOOL STREET (CSO) EA ID / permit SVT01388 · DT/9820 Outlet location SP0805086734 (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 1.3 spills a year (monitored since 2019) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement No improvement action in reporting period	River Rea	0	0.0	no change	100%
Redditch - Lodge Road 76 (CSO) Overflow on sewer network EA ID / permit SVT01391 · EPRJB3395VK Outlet location SP0567267159 (OS grid reference) · View on Apple Maps WFD catchment Arrow - source to Spernall Hall Fm, Studley (GB109054043890) 2024 spills / hours 0 / 0.0 Long-term average 1.0 spills a year (monitored since 2021) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period	Park Brook	0	0.0	no change	100%
Nechells - Long Acre/Holborn Hill (CSO) Overflow on sewer network EA ID / permit SVT01398 · EPRJB3691AT Outlet location SP0936489887 (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 0.0 spills a year (monitored since 2021) Monitor below 90% Telemetry or data archiving failure / issue · Resolved - May Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement No improvement action in reporting period	Chad Brook	0	0.0	no change	78%
Longbridge Lane CSO Overflow on sewer network Company site name LONGBRIDGE - LONGBRIDGE LN (CSO) EA ID / permit SVT01409 · T/09/36464/O Outlet location SP0141077730 (OS grid reference) · View on Apple Maps WFD catchment Rea source to Bourn Brook (GB104028042510) 2024 spills / hours 2 / 0.2 Long-term average 1.0 spills a year (monitored since 2022) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period	River Rea	0	0.0	down 100%	100%
Loomer Road SPS Storm discharge at pumping station Company site name CHESTERTON - LOOMER ROAD PS (CSO) EA ID / permit SVT01412 · T/01/30243/O Outlet location SJ8266048110 (OS grid reference) · View on Apple Maps WFD catchment Lyme Brook Catchment (trib of Trent) (GB104028053340) 2024 spills / hours 0 / 0.0 Long-term average 0.5 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement No improvement action in reporting period	Trib of Lyme Brook	0	0.0	no change	100%
Loscoe Brook Farm Storm Overflow Overflow on sewer network Company site name LOSCOE - HIGH STREET (BROOK FARM) (CSO) EA ID / permit SVT01416 · T/61/21522/O Outlet location SK4211048070 (OS grid reference) · View on Apple Maps WFD catchment Bailey Brook Catchment (trib of Erewash) (GB104028052590) 2024 spills / hours 0 / 0.0 Long-term average 0.5 spills a year (monitored since 2022) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period	Loscoe Brook	0	0.0	no change	100%
Loscoe Road/Allandale Road CSO Overflow on sewer network Company site name HEANOR - LOSCOE ROAD/ALLANDALE RD (CSO) EA ID / permit SVT01417 · T/61/21513/O Outlet location SK4299646925 (OS grid reference) · View on Apple Maps WFD catchment Bailey Brook Catchment (trib of Erewash) (GB104028052590) 2024 spills / hours 0 / 0.0 Long-term average 0.6 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period	Tributary of Bailey Brook	0	0.0	no change	100%
Loscoe-High St/Springfield Ave CSO Overflow on sewer network Company site name LOSCOE - HIGH ST/SPRINGFIELD AVE (CSO) EA ID / permit SVT01418 · T/61/21520/O Outlet location SK4210148094 (OS grid reference) · View on Apple Maps WFD catchment Bailey Brook Catchment (trib of Erewash) (GB104028052590) 2024 spills / hours 0 / 0.0 Long-term average 0.4 spills a year (monitored since 2021) Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement No improvement action in reporting period	Tributary of Loscoe Brook	0	0.0	no change	98%
Low Street Sewage Pumping Station Storm discharge at pumping station Company site name COLLINGHAM MAIN STREET (SSO) EA ID / permit SVT01423 · T/69/45058/O Outlet location SK8289061900 (OS grid reference) · View on Apple Maps WFD catchment The Fleet Upper Catchment (trib of Trent) (GB104028053430) 2024 spills / hours 19 / 404 Long-term average 9.5 spills a year (monitored since 2024) Investigation Operational investigation completed Improvement Operational improvement completed	The Fleet	0	0.0	down 100%	99%

Sewage treatment works

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

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