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

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:

the permit's grid reference is approximate or marks the works, not the outfall;
one permit covers an overflow the hub lists under a different location;
the overflow is not published on the hub.

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 holder	Permits	Within 100 m	100 to 500 m	Over 500 m
Severn Trent Water Limited	1,989	977	626	386
Wessex Water Services Limited	874	442	262	170
Northumbrian Water Limited	1,330	817	373	140
United Utilities Water Limited	2,083	1,834	119	130
Yorkshire Water Services Limited	1,697	1,367	215	115
Southern Water Services Limited	708	470	124	114
Anglian Water Services Limited	995	683	208	104
South West Water Limited	904	544	265	95
Thames Water Utilities Limited	254	170	56	28
Dŵr Cymru Cyfyngedig	95	61	22	12
Ancala Water Services (Estates) Limited	3	0	1	2
Yorkshire Water Services Limited\|Northumbrian Water Limited	1	0	0	1
Severn Trent Water Limited\|Environmental Permits Severn Trent Water	1	1	0	0
Severn Trent Water Limited\|Yorkshire Water Services Limited	1	0	1	0

Northumbrian Water Limited: 140 permits with no hub overflow within 500 m

Site (register name)	Area	Grid ref	Nearest hub overflow	Permit
RICHARD STREET PUMPING STATION	Redcar and Cleveland	NZ6189019360	3.6 km	NE/256/1075/002
NEW YORK CSO	North Tyneside	NZ3248070140	3.0 km	NE/235/1901/002
COKE WORKS CSO	County Durham	NZ3600034150	2.2 km	NE/253/1256/001
BLUNTS BECK CSO	County Durham	NZ4321039730	2.2 km	NE/255/A/0744/001
KENTON ROAD/ROCKERBY DRIVE CSO	Newcastle upon Tyne	NZ2313067740	2.1 km	NE/235/1549/002
DENTON DENE CSO	Newcastle upon Tyne	NZ2040065520	1.9 km	NE/233/1251/001
RAF BOULMER SEWAGE PUMPING STATION	Northumberland	NU2534014500	1.9 km	NE/221/1036/002
HEATON CSO CORNEL RD	Newcastle upon Tyne	NZ2690467153	1.8 km	NE/EPRCB3192VE/001
FINCHALE VIEW CSO	County Durham	NZ3143946807	1.8 km	NE/245/1294/003
CHURCH LANE HIGH STREET CSO	Redcar and Cleveland	NZ5452020660	1.8 km	NE/254/1406/003
GREENSIDE CSO	Gateshead	NZ1450862253	1.7 km	NE/EPRBB3791AL/002
PITHOUSE LANE CSO (WEST RAINTON 5)	County Durham	NZ3116346818	1.7 km	NE/EPRGB3599NT/002
SILVER LONNEN CSO (NC030)	Newcastle upon Tyne	NZ2029065500	1.7 km	NE/235/1938/003
DENTON DENE NORTH OF WEST ROAD CSO	Newcastle upon Tyne	NZ2019065460	1.6 km	NE/235/1869/003
TEMP STW DALTON ON TEES	North Yorkshire	NZ2970007800	1.6 km	NE/254/E/0173/001
MINDRUM TERRACE CSO	North Tyneside	NZ3361067660	1.5 km	NE/235/1897/002
PERCY MAIN CSO	North Tyneside	NZ3365067570	1.4 km	NE/235/1900/002
REAR ST MICHAELS CSO	County Durham	NZ3200048100	1.4 km	NE/245/1316/002
HIGH WEST STREET CSO (G066)	Gateshead	NZ2571062440	1.4 km	NE/235/1927/004
ST NICHOLAS HOSPITAL SSO	Newcastle upon Tyne	NZ2365068160	1.4 km	NE/235/1548/001
LONGNEWTON SSO	Stockton-on-Tees	NZ3810015620	1.3 km	NE/254/1879/001
LONGNEWTON SSO	Stockton-on-Tees	NZ3810015620	1.3 km	NE/254/E/0021/001
BERRY EDGE ROAD CSO DER096	County Durham	NZ1071050660	1.3 km	NE/234/1137/002
SCEMERSTON NO. 2 SPS	Northumberland	NU0091249602	1.3 km	NE/EPRTB3996RM/001
BROADWAY ROAD CSO	Newcastle upon Tyne	NZ1990465237	1.3 km	NE/EPRBB3999AQ/002
DERWENT WATER TERRACE CSO BT022	Northumberland	NU0061049550	1.3 km	NE/EPRAB3090VG/002
MANOR GARDENS CSO	Gateshead	NZ3033061920	1.3 km	NE/235/1965/003
NORMANBY ROAD	Redcar and Cleveland	NZ5400019700	1.2 km	NE/254/E/0084/001
NORMANBY ROAD	Redcar and Cleveland	NZ5400019700	1.2 km	NE/254/E/0004/001
LITHGOE CLOSE SPS	Hartlepool	NZ5251030900	1.2 km	NE/255/1093/001
BEECH AVE/THE POPLARS STORM SEWAGE	County Durham	NZ2790029790	1.2 km	NE/253/1082/001
JARROW HEDWORTH CSO 20	South Tyneside	NZ3467361601	1.2 km	NE/EPRAB3290EA/001
JARROW HEDWORTH CSO 23	South Tyneside	NZ3472161621	1.2 km	NE/EPRAB3291RT/001
CSO TO REAR OF 61 SKELTON ROAD	Redcar and Cleveland	NZ6832019250	1.2 km	NE/25/06/1012/001
TEMPLE STREET CSO	South Tyneside	NZ3595065170	1.2 km	NE/235/1943/003
HIGH FRIARSIDE CSO	County Durham	NZ1644056800	1.1 km	NE/234/A/0590/002
BLAYDON BANK CSO	Gateshead	NZ1792062540	1.1 km	NE/235/1438/002
STONEY LANE CSO	Sunderland	NZ2908058350	1.1 km	NE/235/1928/003
NORTH ROAD NO1	South Tyneside	NZ3457061720	1.1 km	NE/235/1505/001
GRASSBANKS CSO	Gateshead	NZ2943060780	1.0 km	NE/235/A/0510/001
SHIBDON ROAD CSO	Gateshead	NZ1915062690	1.0 km	NE/234/1021/002
CHURCH STREET NO26 CSO	Sunderland	NZ3408249751	1.0 km	NE/NPSWQD008982/001
LADYCUTTER LANE CSO	Northumberland	NY9907063090	1.0 km	NE/233/0212/001
EAST ACRES CSO, CM35	Northumberland	NZ2471093760	1.0 km	NE/224/0939/001
SHOTTON LANE CSO	County Durham	NZ4025040500	1.0 km	NE/255/1194/002
COACH ROAD EST CSO	Sunderland	NZ3016058210	1.0 km	NE/235/1951/002
VINOVIUM SSO NO A7	County Durham	NZ2390030100	1.0 km	NE/242/C/0366/001
THE GABLES CSO	Northumberland	NZ2474093760	1.0 km	NE/224/0955/001
REAR OF 92 & 94 CHARLES STREET CSO	South Tyneside	NZ3476561647	1.0 km	NE/EPRAB3290DW/002
HEDDON BANKS FARM CSO	Northumberland	NZ1332466465	1.0 km	NE/233/1237/003
YARM ROAD CSO (Y3)	Darlington	NZ3007514316	1.0 km	NE/EPRMB3892RF/001
BRIARDALE CSO	Northumberland	NZ2532082320	0.9 km	NE/NPSWQD000519/002
KING STREET SEWAGE PUMPING STATION	Northumberland	NU2305031500	0.9 km	NE/221/1074/003
MILL LANE CSO	County Durham	NZ2455055020	0.9 km	NE/235/1533/001
PHOENIX ROW CSO	County Durham	NZ1684029060	0.9 km	NE/241/1039/001
GRASSHOLM PLACE CSO	North Tyneside	NZ2620069180	0.9 km	NE/235/1896/003
LADY PARK PUMPING STATION	Gateshead	NZ2460058500	0.9 km	NE/235/A/0837/001
HUMMERSKNOTT PUMPING STATION	Darlington	NZ2580014600	0.9 km	NE/252/A/0586/001
WOODSIDE CSO	Northumberland	NZ2545099810	0.9 km	NE/224/0882/003
DURHAM ROAD CSO	Gateshead	NZ2725054220	0.9 km	NE/235/1884/001
NELSON VILLAGE CSO	Northumberland	NZ2567077860	0.9 km	NE/226/1235/002
BRENDA ROAD/PARK VIEW CSO	Hartlepool	NZ5105030070	0.9 km	NE/255/5014/002
BRENDA ROAD/PARK VIEW CSO	Hartlepool	NZ5105030070	0.9 km	NE/25/05/5033/002
ELMWOOD GARDENS	Gateshead	NZ2372060610	0.9 km	NE/235/1568/002
DRAGON LANE CSO	County Durham	NZ2966942944	0.9 km	NE/245/1136/001
CHARLAW TERRACE CSO	County Durham	NZ2379047050	0.8 km	NE/245/1071/002
VERONICA STREET CSO	Middlesbrough	NZ5068018720	0.8 km	NE/254/1205/002
J F KENNEDY ESTATE CSO	Sunderland	NZ3122456482	0.8 km	NE/245/1302/003
BOTHAL COTTAGES	Northumberland	NZ2595087650	0.8 km	NE/225/1028/001
EASTWOOD VILLAS PS	Northumberland	NZ1106063620	0.8 km	NE/233/1079/001
SOUTHFIELD CSO	Northumberland	NU2175031490	0.8 km	NE/NPSWQD002462/002
BOLDON COLLIERY FENWICH ST NO56 CSO	South Tyneside	NZ3446461960	0.8 km	NE/EPRCB3096NZ/002
BURDON ROAD CSO	South Tyneside	NZ3745062120	0.8 km	NE/235/1279/003
SHERATON CSO	Gateshead	NZ2956060470	0.8 km	NE/235/A/0509/001
ELDON STREET CSO	South Tyneside	NZ3605065800	0.8 km	NE/235/1944/004
RENNYS LANE PUMPING STATION	County Durham	NZ3031142673	0.8 km	NE/245/A/0464/002
CRAWCROOK LANE CSO	Gateshead	NZ1239363926	0.7 km	NE/233/1258/003
WILLIAM STREET CSO	South Tyneside	NZ3113065310	0.7 km	NE/235/1746/002
REDWELL SPS	South Tyneside	NZ3963065170	0.7 km	NE/235/1588/001
CONSETT OAP HALL CSO	County Durham	NZ0936451754	0.7 km	NE/EPRAB3596NY/001
CAROLINE STREET CSO	County Durham	NZ2105628539	0.7 km	NE/EPRAB3593AS/001
ASHINGTON CSO PARK ROAD WK 006	Northumberland	NZ2690087300	0.7 km	NE/225/1029/002
CALIFORNIA ROW CSO	County Durham	NY9596024920	0.7 km	NE/251/0863/002
OLIVER STREET CSO	County Durham	NZ1906052850	0.7 km	NE/245/1265/003
ST IVES ROAD CSO	County Durham	NZ1277051750	0.7 km	NE/234/1140/001
MOORSHOLM SEWAGE TREATMENT WORKS	Redcar and Cleveland	NZ6900014900	0.7 km	NE/256/E/0441/001
20 DERWENT DALE CUTLERS RD CSO	County Durham	NZ0952052450	0.7 km	NE/234/1113/002
EAST HENDON ROAD CSO	Sunderland	NZ4086256788	0.7 km	NE/EPRCB3199EC/001
REAR 3 ERNEST STREET CSO	South Tyneside	NZ3505261798	0.7 km	NE/EPRAB3390WN/001
DEVONSHIRE ROAD WEST CSO	County Durham	NZ3052742984	0.7 km	NE/EPRCP3525XM/001
BEDSIDE CSO	Northumberland	NZ2828081600	0.7 km	NE/226/1206/002
MITCHEL TERRACE CSO	County Durham	NZ1704051650	0.7 km	NE/235/1822/002
A692 CSO	County Durham	NZ0850049000	0.7 km	NE/234/1117/001
CROFTDALE ROAD CSO	Gateshead	NZ1796062970	0.6 km	NE/235/1437/002
SCREMERSTON NO 1 SPS	Northumberland	NU0064348894	0.6 km	NE/210/0880/002
CHILTERN GARDENS CSO	Gateshead	NZ2366060930	0.6 km	NE/235/1551/001
MITRE PLACE CSO	South Tyneside	NZ3554065590	0.6 km	NE/235/1940/001
INGS DEVELOPMENT	Redcar and Cleveland	NZ6291023420	0.6 km	NE/256/0904/001
REMARSHALL SSO	Stockton-on-Tees	NZ3920021100	0.6 km	NE/254/E/0020/001
MAIN STREET SPITTAL CSO	Northumberland	NU0070051590	0.6 km	NE/210/1349/003
WINLATON MILL PUMPING STATION	Gateshead	NZ1867061080	0.6 km	NE/234/1020/001
WHELDON TERRACE CSO	County Durham	NZ2527053231	0.6 km	NE/EPRAB3894VG/001
CSO REAR 11 ST AUSTELL GARDENS	Gateshead	NZ2584058820	0.6 km	NE/235/1483/002
STAINTON & MALTBY SSO	County Durham	NZ0711019100	0.6 km	NE/254/E/0027/001
TEAL FARM SEWAGE PUMPING STATION	Sunderland	NZ3261955910	0.6 km	NE/EPRCB3098VB/001
YARM ROAD CSO (Y6)	Darlington	NZ2968514301	0.6 km	NE/EPRMB3892VE/001
SEA ROAD CSO	Northumberland	NU0063051550	0.6 km	NE/EPRPP3227GJ/002
NEASHAM ROAD CSO (Y5)	Darlington	NZ2967514032	0.6 km	NE/EPRMB3892AA/001
A66 RIDER SEWER CSO	Stockton-on-Tees	NZ4575018090	0.6 km	NE/254/0937/003
STAMFORDHAM ROAD SPS	Newcastle upon Tyne	NZ1890067770	0.6 km	NE/235/1394/003
WOODHOUSE LANE LIBRARY CSO	County Durham	NZ2079328357	0.6 km	NE/EPRBB3093WE/002
NTY025 WILLINGTON QUAY CSO 6	North Tyneside	NZ3197866676	0.6 km	NE/EPRBB3897EY/003
NEST ROAD CSO	Gateshead	NZ2794062700	0.6 km	NE/235/1203/001
PRUDHOE PUMPING STATION	Northumberland	NZ1079064170	0.6 km	NE/233/0974/002
SIMPSONS ROW CSO	County Durham	NZ1054025200	0.6 km	NE/242/1029/001
DURHAM ROAD REF NO 36	County Durham	NZ1050052200	0.6 km	NE/234/1152/002
SOUTH OF ROOKWOOD CSO NTY 003	North Tyneside	NZ2447773431	0.6 km	NE/226/1268/003
BLACK LANE CSO	Gateshead	NZ2580057200	0.6 km	NE/235/1963/003
CSO AT REAR OF ORCHID CRESCENT	Gateshead	NZ2708062830	0.6 km	NE/235/1204/002
LANSBURY DRIVE CSO	Gateshead	NZ2667056630	0.6 km	NE/235/1885/001
BURWELL AVENUE CSO	Newcastle upon Tyne	NZ1970065730	0.6 km	NE/235/1877/001
STATION BANK (DU21)	County Durham	NZ3145542343	0.5 km	NE/245/1296/001
HIGH ST CSO	County Durham	NZ3062044100	0.5 km	NE/245/1155/001
LORAINE TERRACE CSO	Newcastle upon Tyne	NZ1816064860	0.5 km	NE/233/0933/002
HASWELL SSO NO 3	County Durham	NZ3770043700	0.5 km	NE/255/E/0643/004
EDINBURGH DRIVE CSO	Darlington	NZ2633013170	0.5 km	NE/253/1076/002
SOUTHFIELD ROAD CSO	Gateshead	NZ2150060830	0.5 km	NE/235/1507/002
DUNN STREET CSO	County Durham	NZ1677051760	0.5 km	NE/235/1712/001
BATES COLLIERY SPS	Northumberland	NZ3025082050	0.5 km	NE/226/1178/002
DEVONSHIRE ROAD EAST CSO	County Durham	NZ3069742966	0.5 km	NE/EPRCP3526GZ/001
WHITTON STW	Stockton-on-Tees	NZ3871022700	0.5 km	NE/254/E/0016/001
MANDALE BECK SEWER SSO	Stockton-on-Tees	NZ4575018000	0.5 km	NE/254/E/0321/001
WELWYN FACTORY CSO	Northumberland	NZ2750083600	0.5 km	NE/226/1267/003
SOUTHFIELDS CSO	County Durham	NZ2549053130	0.5 km	NE/245/1280/003
DEAN ROAD CSO	County Durham	NZ2919132256	0.5 km	NE/EPRBB3495RJ/001
ACOMB CSO	Northumberland	NY9285065920	0.5 km	NE/233/G/0243/002
HEATON GARDENS PUMPING STATION	South Tyneside	NZ3625062490	0.5 km	NE/235/1388/001
NEWBIGGIN SSO (WILKIE TERRACE)	Northumberland	NZ3130088140	0.5 km	NE/224/0881/003
CROSS STREET CSO	County Durham	NZ2677037300	0.5 km	NE/243/0916/002
WOOD GROVE CSO (NC029)	Newcastle upon Tyne	NZ1954065180	0.5 km	NE/235/1939/003

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).