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Official records compared

Permitted overflows not found on the hub

The Environment Agency's public register lists every permit held by a water company to discharge storm sewage in England. The National Storm Overflow Hub lists the overflows the companies report on. We compare the two.

Active storm sewage permits

10,935

No hub overflow within 500 m

1,297

Share

11.9%

What this does and does not show

The data shows a permitted storm sewage discharge point on the EA register with no overflow published on the hub within 500 m. It does not show that an overflow is unmonitored or that anything is wrong. Common reasons for a gap:

35 active permits have no usable grid reference on the register and are left out. Each row links to the EA register so it can be checked. England only: Welsh permits are held by Natural Resources Wales. Company names are as recorded on the register. Register last read 2026-09-20.

By company

Permit holderPermitsWithin 100 m100 to 500 mOver 500 m
Severn Trent Water Limited1,989977626386
Wessex Water Services Limited874442262170
Northumbrian Water Limited1,330817373140
United Utilities Water Limited2,0831,834119130
Yorkshire Water Services Limited1,6971,367215115
Southern Water Services Limited708470124114
Anglian Water Services Limited995683208104
South West Water Limited90454426595
Thames Water Utilities Limited2541705628
Dŵr Cymru Cyfyngedig95612212
Ancala Water Services (Estates) Limited3012
Yorkshire Water Services Limited|Northumbrian Water Limited1001
Severn Trent Water Limited|Environmental Permits Severn Trent Water1100
Severn Trent Water Limited|Yorkshire Water Services Limited1010

United Utilities Water Limited: 130 permits with no hub overflow within 500 m

Site (register name)AreaGrid refNearest hub overflowPermit
MARTON SCHOOL WW NTWK PSCheshire EastSJ85310682904.8 kmNW/01MAC0100/003
SPRINGFIELD WW NTWK PSSt. HelensSD47440024103.7 kmNW/01STH0084/003
RUSHTON STREETPrestonSD58910393403.3 kmNW/01PEN0065/001
SCARISBRICK HALL PSWest LancashireSD39300127003.2 kmNW/017090025/002
CRONTON STWKnowsleySJ48700885003.2 kmNW/016930295/001
DODDING HOLME PS (39014)Westmorland and FurnessSD53300952303.1 kmNW/01LAK0004/003
ANCHORSHOLME PSBlackpoolSD31180422602.9 kmNW/017160288/006
WHASSET PUMPING STATIONWestmorland and FurnessSD51010809902.6 kmNW/01LAK0031/003
STRAWBERRY DRIVE WW NTWK PS (18043)Cheshire West and ChesterSJ39560738702.3 kmNW/01CHE0002/003
LYME GREEN BUSINESS PARK SWOCheshire EastSJ91560713702.2 kmNW/016891878/001
MILL BROWSt. HelensSJ48910958102.2 kmNW/016991412/002
FAULKNERS LANE WW NTWK PSCheshire EastSJ80150788502.1 kmNW/01MAC0078/003
PICKMERE LANE WW NTWK PSCheshire EastSJ69180767702.1 kmNW/01MAC0070/003
BOLTON ROAD NORTH SPSBoltonSD79596186002.0 kmNW/016982309/001
MERE PLATTS SPSCheshire EastSJ73500836001.9 kmNW/01MAC0145/002
HAWTHORN DRIVE WW NTWK PSSt. HelensSJ48650955401.9 kmNW/01STH0090/003
DUNHAM-ON-THE-HILL SPSCheshire West and ChesterSJ46340728801.8 kmNW/016810287/001
DUNHAM-ON-THE-HILL SPSCheshire West and ChesterSJ46340728801.8 kmNW/016810289/001
DUNHAM-ON-THE-HILL SPSCheshire West and ChesterSJ46340728801.8 kmNW/016810288/001
SOSS MOSS SCHOOL WW NTWK PSCheshire EastSJ82240768501.8 kmNW/01MAC0107/003
SLEDMOOR ROAD CSO (MAN0387)ManchesterSJ80647902941.8 kmNW/016982979/003
DUNWOOD PARK WW NTWK PSOldhamSD94250101501.8 kmNW/01OLD0056/003
LYDIAT LANE SPSCheshire EastSJ84100778001.8 kmNW/016982116/002
MILL LANE GREAT BARROW (11008)Cheshire West and ChesterSJ47340683501.8 kmNW/01CHE0010/003
REAR 10 CHURCH LANE SSOCheshire EastSJ83120569601.8 kmNW/016810311/001
BIRCHFIELD ROADHaltonSJ51250875801.8 kmNW/01HAL0125/001
P.S. AT INCE TRT. WRKSCheshire West and ChesterSJ45190769201.8 kmNW/01ELL0023/003
BARKER LANEBlackburn with DarwenSD67210303601.8 kmNW/01BBN0001/003
PEPPER STREET WW NTWK PSCheshire EastSJ77710818601.7 kmNW/01MAC0082/003
RAWLINSON LANE WW NTWK PS (12012)ChorleySD59468141521.6 kmNW/01CHR0058/003
LODGE RD, ORRELL(M.H. A4)WiganSD53280003801.6 kmNW/01WIG0171/001
KNUNCK KNOWLES WW NTWK PSRibble ValleySD73990426801.6 kmNW/01RIB0010/003
SMALL LANE WW NTWK PSCheshire EastSJ77940818101.6 kmNW/01MAC0083/003
MILLBROOK WAY WW NTWK PSSouth RibbleSD51600267101.6 kmNW/01SRI0044/003
STONEHILL ROAD CSO 07049BoltonSD73784048381.5 kmNW/016982823/003
WOODFIELDS WW NTWK PSRibble ValleySD69740391501.5 kmNW/01RIB0015/003
NOYNA VIEW WW NTWK PSPendleSD89250411701.5 kmNW/01PEN0031/003
MARSTON LANE WWW NTWK PSCheshire West and ChesterSJ66400770601.5 kmNW/01VRY0035/003
FENISCOWLES BRIDGEBlackburn with DarwenSD64760253101.5 kmNW/017190536/001
KNUTSHAW BRIDGE PSBoltonSD68510074501.5 kmNW/016951079/002
EXPRESS TRADING ESTATE SSOBoltonSD74010047901.5 kmNW/016950293/001
STONEHILL TRADING ESTATE CSOBoltonSD74011047911.5 kmNW/016993835/002
STONEHILL ROAD CSO 072TVBoltonSD74020048201.4 kmNW/016982452/003
RAVENSCLIFFE WW NTWK PSNewcastle-under-LymeSJ83950537401.4 kmNW/01NEW0014/003
ASHLEY POST OFFICE WW NTWK PSCheshire EastSJ77450841901.4 kmNW/01MAC0076/003
NIXON LANE WW NTWK PSSouth RibbleSD51110217301.3 kmNW/01SRI0047/003
COCKERHAM STW (SPS)LancasterSD46100523001.3 kmNW/017270091/001
STATION ROAD MOBBERLEY WW NTWK PSCheshire EastSJ77710814001.3 kmNW/01MAC0081/003
310-314 CHESTER ROAD CSOCheshire West and ChesterSJ62974717641.3 kmNW/016810821/003
FAIRHAVEN PUMPING STATIONFyldeSD33530272301.2 kmNW/017180556/005
CHERRY TREE/FENISCOWLES CSOBlackburn with DarwenSD64730260801.2 kmNW/017160215/002
CROXTETH PARK PS (26009)LiverpoolSJ41350941301.2 kmNW/01LIV0012/003
JUMBLES WW NTWRK PSBlackburn with DarwenSD73800151601.2 kmNW/01BBN0010/003
DALSTON SEWAGE PUMPING STATION CSOCumberlandNY37150503401.2 kmNW/017680322/003
WEATES CLOSEHaltonSJ53730868601.1 kmNW/01HAL0076/003
LONG BANK TUMMERHILL MARSWestmorland and FurnessSD18240677801.1 kmNW/01BRW0092/001
MANOR PARK (13528)Cheshire EastSJ69560655901.1 kmNW/01CON0076/003
BOLTON ROAD PSChorleySD59700152901.1 kmNW/01CHR0056/002
BRYN ROAD CSO 50065WiganSD57657004921.1 kmNW/016983356/002
DEVONSHIRE DRIVE WW NTWK PSCheshire EastSJ84610785901.1 kmNW/01MAC0091/003
TROUTBECK ROAD SSOTraffordSJ73760875401.1 kmNW/016982319/001
PRESTON AVENUE WW NTWK PSSalfordSJ71700933501.1 kmNW/01SAL0005/003
CROFT LANE WW NTWK PSCheshire EastSJ75600776901.0 kmNW/01MAC0088/003
LEYCESTER DRIVE WW NTWK PSCheshire EastSJ77860812201.0 kmNW/01MAC0080/003
ARKENSHAW ROADWarringtonSJ63320934201.0 kmNW/01WAR0116/001
LYNHOLME RD/OAKDENE RDLiverpoolSJ38590966111.0 kmNW/01LIV0036/001
CLOSE LANE WW NTWK PSCheshire EastSJ77850557101.0 kmNW/01CON0051/003
RIBCHESTER WW NTWK PSRibble ValleySD65240354001.0 kmNW/01RIB0011/003
SHOLVER WW NTWK PSOldhamSD94000073001.0 kmNW/01OLD0053/003
BLACKBURN ROADChorleySD61280225801.0 kmNW/01CHR0031/005
BEECH AVENUE WW NTWK PSCheshire EastSJ77510808201.0 kmNW/01MAC0075/003
PINEWOODS PSCumberlandNY03260231301.0 kmNW/01COP0007/003
ALDERWOOD GROVE WW NTWK PSRossendaleSD79670196401.0 kmNW/01ROS0048/003
THORNTON-LE-MOORS WW NTWK PS (11004Cheshire West and ChesterSJ44110743201.0 kmNW/01CHE0003/003
SANDBROOK ROAD PSWest LancashireSD32310120191.0 kmNW/017081287/002
STARCLIFFE ST HIGH LEVELBoltonSD73580069500.9 kmNW/01BOL0201/001
HOLLY BANKHaltonSJ57460841200.9 kmNW/01HAL0074/003
THE WHITFIELDS WW NTWK PSCheshire EastSJ90330742000.9 kmNW/01MAC0112/003
CHEW MOORBoltonSD66330083200.9 kmNW/01BOL0213/001
WARRINGTON ROAD WW NTWK PS (11015)Cheshire West and ChesterSJ44790702300.9 kmNW/01CHE0013/003
HEYES LANE WW NTWK PSCheshire EastSJ84920791500.8 kmNW/01MAC0093/003
SKIP LANESouth RibbleSD48990269300.8 kmNW/017081188/002
OLD ROAD WW NTWK PSCheshire West and ChesterSJ64770753700.8 kmNW/01VRY0030/003
MANCHESTER RD/SELBOURNE RD CSOPrestonSD54700289900.8 kmNW/01PRE0074/003
CROCO PARK WW NTWK PSCheshire EastSJ75710665800.8 kmNW/01CON0063/003
DENE BRIDGE WW NTWK PSRibble ValleySD68330378900.8 kmNW/01RIB0009/003
MEADWAY WW NTWK PSBurySD80780085100.8 kmNW/01BRY0059/003
ALDFORD PLACE WW NTWK PSCheshire EastSJ83880788700.8 kmNW/01MAC0117/003
MANCHESTER RD/SHIRLEY STBoltonSD73360070400.8 kmNW/01BOL0191/001
HARWOOD VALE WW NTWRK PSBoltonSD74010113200.8 kmNW/01BOL0007/003
WILLASTON RELIEF SEW TANKCheshire West and ChesterSJ34090789500.8 kmNW/016910794/001
SCOT LANE WW NTWRK PSBoltonSD62240089700.8 kmNW/01BOL0005/003
VICTORIA ROAD/OSBOURNE ROManchesterSJ86970941900.8 kmNW/01MAN0379/001
COOPE ROAD PSCheshire EastSJ92310770500.7 kmNW/016881863/001
GRANGE DRIVE WW NTWK PSSouth RibbleSD58720279100.7 kmNW/01SRI0049/003
NORTH ROAD WW NTWK PSCheshire West and ChesterSJ38680787000.7 kmNW/01ELL0014/004
BEDFORD AVENUE PSSalfordSD73580020900.7 kmNW/016993662/001
RIVERSIDE WW NTWK PSRibble ValleySD72850417700.7 kmNW/01RIB0012/003
MIDDLETON OLD RD/MARKET SManchesterSD85750028600.7 kmNW/01MAN0267/001
BRIDGEWAY WW NTWK PSSouth RibbleSD55470253900.7 kmNW/01SRI0048/003
Parker Street CSOHyndburnSD72896304300.7 kmEPR/FB3048KC/001
ALMA AVENUE WW NTWK PSPendleSD88810419500.7 kmNW/01PEN0030/003
PARROTT STREET/BROMLOW STREET CSOManchesterSJ87790978910.7 kmNW/01MAN0107/004
ALBYN STREET EAST CSO 33102PrestonSD54930293300.7 kmNW/017160851/003
CITY RD CSO 288OVManchesterSJ82885968650.7 kmNW/016982954/004
BROOK CORNER CSOFyldeSD39700277010.7 kmNW/01FYL0015/005
GEORGE STREET CSO 331VJPrestonSD54880292600.6 kmNW/01PRE0077/004
GLEN AVENUE WW NTWK PSBoltonSD75540047200.6 kmNW/01BOL0001/003
PUMPING STATION AT POCHIN WAYCheshire EastSJ71250658500.6 kmNW/016892023/001
HEYWOOD ROAD CSO 091YZBurySD81910039310.6 kmNW/016993905/002
HAMPDEN ROAD CSO 091XV BRY0041BurySD81910039300.6 kmNW/016993787/003
SWINTON SSOSalfordSD76720000100.6 kmNW/016940229/001
HEWLETT AVENUE CSOChorleySD55900140900.6 kmNW/NPSWQD010698/001
HULME WALK/LEAF STREETManchesterSJ83690968100.6 kmNW/01MAN0364/001
WORK 6/WORK 5 SEWER CONSTManchesterSJ85910998900.6 kmNW/01MAN0321/001
O/S 2 CLIFTON STREETHyndburnSD72790304500.6 kmNW/01HYN0055/001
FAIRY LANE CSO 281T3ManchesterSD83317001230.6 kmNW/01MAN0066/005
WHITTLE-LE-WOODS SSOChorleySD57230220500.6 kmNW/017060091/001
WELL LANE WW NTWK PS (13541)Cheshire EastSJ79380551200.6 kmNW/01CON0054/004
SHIP STREET SOUTH WW NTWK PSCheshire West and ChesterSJ51930784300.6 kmNW/01VRY0033/003
HULME WALK/PRINCESS RDManchesterSJ83780968400.6 kmNW/01MAN0363/001
CHURCH ROAD SPSWest LancashireSD44260045300.6 kmNW/016930162/001
WALMER ST/WILMSLOW RDManchesterSJ85150954000.5 kmNW/01MAN0382/001
Darley Street CSOBoltonSD70693103300.5 kmEPR/CB3146KG/001
HULME WALKManchesterSJ83870968700.5 kmNW/01MAN0362/001
BOAT MUSEUM 2 PS (18036)Cheshire West and ChesterSJ40460773300.5 kmNW/01ELL0022/003
HOLMEWestmorland and FurnessSD52210788700.5 kmNW/01LAK0083/001
WOODLANDS CRESCENT WW NTWK PSCheshire EastSJ70200836200.5 kmNW/01MAC0072/003
HYDE ROAD (DENTON) CSOTamesideSJ93710953600.5 kmNW/01TAM0069/004
NETHERLEY PS (NETHL)LiverpoolSJ44660883400.5 kmNW/01LIV0023/003

Sources: Environment Agency public register, Discharges to Water and Groundwater (Environment Agency Conditional Licence); National Storm Overflow Hub. The register is read weekly and every download is archived with a SHA-256 fingerprint (see how we keep the record).