World wastewater treatment plant observatory · data as reported by each inventory

Wastewater treatment plants in the United Kingdom

1,877 inventory records · European Environment Agency — Waterbase-UWWTD, data call 2019 (v07.01)

Data years: 2018. The inventory date does not establish current operation.

1,877 results

Name	Native size	Year
SOUTH ELY VALLEY STWUKWAWA_WW_TP000020	52,742 population equivalent (p.e.)	2018
QUEENBOROUGH STWUKENSO_SW_TP000024	52,428 population equivalent (p.e.)	2018
WITNEY STWUKENTH_TWU_TP000154	52,296 population equivalent (p.e.)	2018
SHEPTON MALLET STWUKENSW_WXW_TP000077	52,004 population equivalent (p.e.)	2018
ASHTON-UNDER-LYNE STWUKENNW_UU_TP000007	51,833 population equivalent (p.e.)	2018
HOUGHTON-LE-SPRING STWUKENNE_NU_TP000048	51,691 population equivalent (p.e.)	2018
BICESTER, BICESTER, OXON STW"UKENTH_TWU_TP000019	51,308 population equivalent (p.e.)	2018
FERNDOWN / VERWOOD / WEST MOORS / ST IVES STWUKENSW_WXW_TP000061	50,700 population equivalent (p.e.)	2018
MARKET HARBOROUGH STWUKENAN_AW_TP000177	50,050 population equivalent (p.e.)	2018
TONBRIDGE STWUKENSO_SW_TP000020	50,021 population equivalent (p.e.)	2018
DROITWICH STWUKENMI_ST_TP000078	50,000 population equivalent (p.e.)	2018
THETFORD STWUKENAN_AW_TP000261	50,000 population equivalent (p.e.)	2018
HINCKLEY STWUKENMI_ST_TP000109	50,000 population equivalent (p.e.)	2018
CONSETT STWUKENNE_NU_TP000019	50,000 population equivalent (p.e.)	2018
SHENFIELD STWUKENAN_AW_TP000230	49,823 population equivalent (p.e.)	2018
COLNE STWUKENNW_UU_TP000036	49,668 population equivalent (p.e.)	2018
WESTBURY STWUKENSW_WXW_TP000099	49,633 population equivalent (p.e.)	2018
ALTON, ALTON, HAMPSHIRE STW"UKENTH_TWU_TP000004	49,355 population equivalent (p.e.)	2018
HAZEL GROVE STWUKENNW_UU_TP000058	49,168 population equivalent (p.e.)	2018
LEYLAND STWUKENNW_UU_TP000079	48,683 population equivalent (p.e.)	2018
MARSTON MORETAINE STWUKENAN_AW_TP000179	48,291 population equivalent (p.e.)	2018
BRIDLINGTON STWUKENNE_YW_TP000061	47,953 population equivalent (p.e.)	2018
DAVENTRY STWUKENAN_AW_TP000286	47,800 population equivalent (p.e.)	2018
WIGSTON STWUKENMI_ST_TP000233	47,500 population equivalent (p.e.)	2018
MORECAMBE STWUKENNW_UU_TP000092	47,283 population equivalent (p.e.)	2018
ALLERS S.T.W.UKSC_TP00005	47,000 population equivalent (p.e.)	2018
OmaghUKNI_TP00068	47,000 population equivalent (p.e.)	2018
FLEET, FLEET, HANTS STW"UKENTH_TWU_TP000068	46,886 population equivalent (p.e.)	2018
LEATHERHEAD STWUKENTH_TWU_TP000097	46,809 population equivalent (p.e.)	2018
LETCHWORTH STWUKENAN_AW_TP000160	46,653 population equivalent (p.e.)	2018
LAVISTER STW STWUKWAWA_WW_TP000114	46,529 population equivalent (p.e.)	2018
FLITWICK STWUKENAN_AW_TP000099	46,458 population equivalent (p.e.)	2018
TROQUEER S.T.W.UKSC_TP00188	46,228 population equivalent (p.e.)	2018
NORMANTON STWUKENNE_YW_TP000106	46,164 population equivalent (p.e.)	2018
CRAMLINGTON STWUKENNE_NU_TP000020	45,918 population equivalent (p.e.)	2018
SNARROWS STWUKENMI_ST_TP000197	45,868 population equivalent (p.e.)	2018
CANVEY ISLAND STW, CANVEY ISLAND, E"UKENAN_AW_TP000305	45,810 population equivalent (p.e.)	2018
BIDEFORD/NORTHAM STWUKENSW_SWS_TP000016	45,789 population equivalent (p.e.)	2018
HARROGATE NORTH STWUKENNE_YW_TP000015	45,741 population equivalent (p.e.)	2018
FALMOUTH STWUKENSW_SWS_TP000025	45,285 population equivalent (p.e.)	2018
BILLINGHAM STWUKENNE_NU_TP000009	45,177 population equivalent (p.e.)	2018
BISHOP AUCKLAND STWUKENNE_NU_TP000054	45,009 population equivalent (p.e.)	2018
MALVERN STWUKENMI_ST_TP000017	45,000 population equivalent (p.e.)	2018
BURNTWOOD STWUKENMI_ST_TP000043	45,000 population equivalent (p.e.)	2018
CookstownUKNI_TP00008	45,000 population equivalent (p.e.)	2018
BOURNEMOUTH (KINSON) STWUKENSW_WXW_TP000045	44,970 population equivalent (p.e.)	2018
WINCHESTER CENTRAL AND SOUTH (MORESTEAD) STWUKENSO_SW_TP000003	44,485 population equivalent (p.e.)	2018
SOUTH WARRINGTON STWUKENNW_UU_TP000125	44,461 population equivalent (p.e.)	2018
ALTRINCHAM STWUKENNW_UU_TP000004	44,401 population equivalent (p.e.)	2018
NewtowmbredaUKNI_TP00066	44,375 population equivalent (p.e.)	2018
FARNHAM, FARNHAM, SURREY STW"UKENTH_TWU_TP000066	44,243 population equivalent (p.e.)	2018
BEVERLEY STWUKENNE_YW_TP000056	43,814 population equivalent (p.e.)	2018
CHIPPENHAM STWUKENSW_WXW_TP000023	43,467 population equivalent (p.e.)	2018
ALDERSHOT, ALDERSHOT, HANTS STW"UKENTH_TWU_TP000003	43,250 population equivalent (p.e.)	2018
MORAY WEST, LOSSIEMOUTH, STWUKSC_TP00138	43,117 population equivalent (p.e.)	2018
GLASTONBURY STWUKENSW_WXW_TP000037	43,033 population equivalent (p.e.)	2018
HITCHIN STWUKENAN_AW_TP000132	42,980 population equivalent (p.e.)	2018
OWLWOOD STWUKENNE_YW_TP000113	42,768 population equivalent (p.e.)	2018
ROCHFORD STWUKENAN_AW_TP000221	42,700 population equivalent (p.e.)	2018
LEIGHTON LINSLADE STWUKENAN_AW_TP000158	42,616 population equivalent (p.e.)	2018
LICHFIELD STWUKENMI_ST_TP000131	42,500 population equivalent (p.e.)	2018
CROMER STWUKENAN_AW_TP000071	42,352 population equivalent (p.e.)	2018
SCAYNES HILL STWUKENSO_SW_TP000084	42,127 population equivalent (p.e.)	2018
BIRTLEY STWUKENNE_NU_TP000061	42,013 population equivalent (p.e.)	2018
MONTROSE WWTPUKSC_TP00136	42,000 population equivalent (p.e.)	2018
HARROGATE SOUTH STWUKENNE_YW_TP000016	41,795 population equivalent (p.e.)	2018
WICKFORD STWUKENAN_AW_TP000289	41,689 population equivalent (p.e.)	2018
ABINGDON (OXON STW)UKENTH_TWU_TP000001	41,683 population equivalent (p.e.)	2018
ABINGDON STWUKENTH_TWU_TP000165	41,683 population equivalent (p.e.)	2018
HERNE BAY STWUKENSO_SW_TP000023	41,673 population equivalent (p.e.)	2018
HAVERHILL STWUKENAN_AW_TP000127	41,600 population equivalent (p.e.)	2018
BORDON, BORDON, HANTS STW"UKENTH_TWU_TP000023	41,299 population equivalent (p.e.)	2018
WHALEY BRIDGE STWUKENNW_UU_TP000129	41,086 population equivalent (p.e.)	2018
GLOSSOP STWUKENNW_UU_TP000054	41,039 population equivalent (p.e.)	2018
WINDSOR, HAM ISLAND, OLD WINDSO STW"UKENTH_TWU_TP000152	40,900 population equivalent (p.e.)	2018
CONGLETON STWUKENNW_UU_TP000037	40,827 population equivalent (p.e.)	2018
WHELDALE STWUKENNE_YW_TP000137	40,721 population equivalent (p.e.)	2018
Ballymoney (Glenstall)UKNI_TP00020	40,650 population equivalent (p.e.)	2018
ST NEOTS STWUKENAN_AW_TP000245	40,641 population equivalent (p.e.)	2018
BINGLEY STWUKENNE_YW_TP000075	40,537 population equivalent (p.e.)	2018
SANDHURST, SANDHURST, BERKS STW"UKENTH_TWU_TP000127	40,247 population equivalent (p.e.)	2018
THORNE STWUKENNE_YW_TP000133	40,160 population equivalent (p.e.)	2018
CHARD STWUKENSW_WXW_TP000018	40,117 population equivalent (p.e.)	2018
SEAHAM STWUKENNE_NU_TP000044	40,076 population equivalent (p.e.)	2018
DUNNSWOOD S.T.W.UKSC_TP00064	40,000 population equivalent (p.e.)	2018
LOWER GORNAL STWUKENMI_ST_TP000138	40,000 population equivalent (p.e.)	2018
PACKINGTON STWUKENMI_ST_TP000168	40,000 population equivalent (p.e.)	2018
MABLETHORPE STWUKENAN_AW_TP000172	40,000 population equivalent (p.e.)	2018
BanbridgeUKNI_TP00003	40,000 population equivalent (p.e.)	2018
TENBY AND SAUNDERSFOOT STWUKWAWA_WW_TP000076	39,965 population equivalent (p.e.)	2018
BRACKLEY STWUKENAN_AW_TP000028	39,956 population equivalent (p.e.)	2018
PAR STWUKENSW_SWS_TP000055	39,829 population equivalent (p.e.)	2018
STANTON STWUKENMI_ST_TP000201	39,727 population equivalent (p.e.)	2018
CHICHESTER STWUKENSO_SW_TP000107	39,631 population equivalent (p.e.)	2018
FELIXSTOWE STWUKENAN_AW_TP000096	39,363 population equivalent (p.e.)	2018
DORCHESTER STWUKENSW_WXW_TP000030	39,150 population equivalent (p.e.)	2018
DURHAM (BARKERS HAUGH) STWUKENNE_NU_TP000004	38,545 population equivalent (p.e.)	2018
HARPENDEN, HARPENDEN, HERTS STW"UKENTH_TWU_TP000075	38,540 population equivalent (p.e.)	2018
NEWBIGGIN STWUKENNE_NU_TP000041	38,487 population equivalent (p.e.)	2018
BLYTH STWUKENNE_NU_TP000010	38,001 population equivalent (p.e.)	2018

Regulatory context

Partial review. This is not an exhaustive review of applicable law.

United Kingdom: four jurisdictions

England and Wales have their respective environmental permitting authorities. In Scotland, water activities moved to EASR on 1 November 2025; records may retain CAR identifiers. Northern Ireland has a discharge consent regime under the Water (Northern Ireland) Order 1999. Each profile's constituent nation still needs confirmation.

Determine England, Wales, Scotland or Northern Ireland before assigning authority and regime.
Check the permit, potential exemptions and discharge conditions.

Environment Agency · England
Natural Resources Wales · Wales
SEPA · EASR water activitiesOfficial guidance · Scotland
SEPA · public register and legacy CAR identifiersOfficial register · Scotland
DAERA · regulating water dischargesOfficial guidance · Northern Ireland

References reviewed: 2026-11-06. Individual applicability: undetermined. This profile does not establish authorization or compliance.