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

Wastewater treatment plants in the United States

14,626 inventory records · HydroWASTE v1.0 / United States

Data years: 2008, 2012. The inventory date does not establish current operation.

States

14,626 results

Name	Native size	Year
RUSSELLVILLE WWTPHW:32021	807 population served	2012
GLEN ULLIN LAGOONHW:34588	807 population served	2012
FINDLAY STPHW:27873	806 population served	2012
JACKSON WWTPHW:34329	806 population served	2012
LIVERPOOL MUN AUTH STPHW:36579	806 population served	2012
LINDEN WWTPHW:28321	805 population served	2012
CLIFFORD STPHW:30914	805 population served	2012
BIRCH TREE WWTPHW:32213	805 population served	2012
MAURY CITY STPHW:37449	805 population served	2012
PLAIN STPHW:39388	805 population served	2012
Heuvelton V STPHW:33881	804 population served	2012
Eden STPHW:39198	804 population served	2012
NICHOLLS LASHW:27264	803 population served	2012
CANTON WWTPHW:29628	803 population served	2012
BLACKDUCK WWTPHW:31346	803 population served	2012
WOOD HEIGHTS WTPHW:31815	803 population served	2012
BERK CO PSSD GERRARDSTOWN TPHW:38806	803 population served	2012
GRAYSON WWTFHW:26009	802 population served	2012
Pleasant Plains WTPHW:27797	802 population served	2012
BROWERVILLE STPHW:31323	801 population served	2012
Richmondville V STPHW:33741	801 population served	2012
Sherwood WWTP and Sewer SystemHW:34953	801 population served	2012
TAYLOR TWP STPHW:36941	801 population served	2012
BRAMWELL WWTPHW:38928	801 population served	2012
SYLACAUGA FAIRMONT WWTPHW:25102	800 population served	2012
BRANTLEY LAGOONHW:25134	800 population served	2012
COLUMBIA LAGOONHW:25147	800 population served	2012
CUYAMA WWTFHW:25923	800 population served	2012
BIG PINE WWTFHW:26176	800 population served	2012
PAUMA VALLEY WWTFHW:26259	800 population served	2012
ACADEMY WWTPHW:26413	800 population served	2012
Beverly Beach WWTPHW:26913	800 population served	2012
Toho II WWTFHW:26961	800 population served	2012
MEIGS PONDHW:27253	800 population served	2012
CLARKS HILL WWTPHW:28086	800 population served	2012
HAMLET WWTPHW:28368	800 population served	2012
RN CO S D 8 WWTP PANGANICKAHW:29825	800 population served	2012
BUTLER STPHW:29941	800 population served	2012
MERRYVILLE STPHW:30128	800 population served	2012
BROWNVILLE WWTFHW:30475	800 population served	2012
Cherry Hill WWTPHW:30552	800 population served	2012
Clifton on the Potomac WWTPHW:30579	800 population served	2012
FARWELL WWTPHW:30853	800 population served	2012
BRUNSWICK WWTPHW:32211	800 population served	2012
OSMOND WWTPHW:32974	800 population served	2012
CASS CO SID NO 5 BUCCANEER BAYHW:33091	800 population served	2012
Dutchess Co Valley Dale STPHW:33592	800 population served	2012
Woodstock T WWTP decentrsysHW:33687	800 population served	2012
Madrid T STP and On Site SysHW:33883	800 population served	2012
ANSONVILLE WWTPHW:34126	800 population served	2012
BELFIELD LAGOONHW:34477	800 population served	2012
Geauga Co Troy Oaks WWTPHW:35134	800 population served	2012
EAST ROCKHILL TWP STPHW:36247	800 population served	2012
LICKDALE STPHW:36331	800 population served	2012
KARTHAUS _ BURNSIDE TWP STPHW:36411	800 population served	2012
HOPEWELL TWP WICKHAM VILLAGE STPHW:36722	800 population served	2012
BJWSA_Point SouthHW:37276	800 population served	2008
TRIMBLE LAGOONHW:37528	800 population served	2012
Chillicothe WWTPHW:37585	800 population served	2012
Senna Hills MUDHW:37682	800 population served	2012
Rhome WWTPHW:37863	800 population served	2012
Jim s Bayou WWTPHW:37929	800 population served	2012
Menard WWTPHW:38097	800 population served	2012
VICTORIA EAST STPHW:38412	800 population served	2012
EVANS PSD WWTPHW:38872	800 population served	2012
DAVIS WWTPHW:39015	800 population served	2012
ALLENTON SD 1 WWTPHW:39532	800 population served	2012
BURLINGTON LAGOONHW:34500	799 population served	2012
Scio WWTP and Sewer SystemHW:34752	799 population served	2012
STROUD UA NORTH WWTHW:35566	799 population served	2012
PARKER CITY STPHW:36763	799 population served	2012
DANTE WWTP AND COLL SYSTEMHW:38307	799 population served	2012
Swifton WWTPHW:25639	798 population served	2012
TRAFALGAR WWTPHW:28004	798 population served	2012
SHELBY WWTPHW:33024	797 population served	2012
NORTH ENID WWTHW:35797	797 population served	2012
ESCALANTEHW:38148	797 population served	2012
NEW MEADOWS S_T FACILITYHW:27438	796 population served	2012
GILBERT STLHW:28701	796 population served	2012
GARLAND WWTPHW:34382	796 population served	2012
COPAN WWTHW:36009	796 population served	2012
EAGLE LAKE WW TFHW:30509	795 population served	2012
HARLEM WWTPHW:32541	795 population served	2012
CHILOQUIN STPHW:36103	795 population served	2012
Huntington Dept of Public WorksHW:30801	794 population served	2012
CLEARVIEW ACRES SUBDHW:31930	794 population served	2012
FAIRFIELD TWP JASPER WWSLHW:31182	793 population served	2012
ROSE VALLEY STPHW:36210	793 population served	2012
NORMAN PARK WPCPHW:27265	792 population served	2012
ELNORA STPHW:28230	792 population served	2012
MOUNT HOPE WWTPHW:29269	792 population served	2012
NAPOLEON LAGOONHW:34519	792 population served	2012
PINEVILLE WWTPHW:31827	791 population served	2012
SUMMIT SPRINGS RWD WWTPHW:28268	790 population served	2012
MELBOURNE WWTPHW:28869	790 population served	2012
FRANKFORT WWTPHW:29310	790 population served	2012
GOLDEN MEADOW STPHW:30272	790 population served	2012
Mayfield V WWTPHW:33805	790 population served	2012
Orleans T WWTP and Thousand Island Park SDHW:33849	790 population served	2012
SOUTH COFFEYVILLE PWA WWTHW:35930	790 population served	2012

Regulatory context

General reference. This is not an exhaustive review of applicable law.

United States: Clean Water Act / NPDES

NPDES regulates pollutant discharges from point sources to waters of the United States. The permit sets limits and monitoring conditions. A CWNS code identifies an inventory record, not an NPDES permit.

Permit identifier and permitting authority: EPA or an authorized state.
Outfall and receiving water; sewer connections follow a different control route.
Current permit conditions, limits and dated measurements; these are not included in CWNS.

US EPA · NPDES Permit Basics

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