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
La Grange T Noxon Knolls SD STPHW:33589	160 population served	2012
REGENT LAGOONHW:34664	160 population served	2012
SELFRIDGE LAGOONHW:34676	160 population served	2012
Pickaway Co Walnut Heights Subdivision WWTP and SewersHW:34787	160 population served	2012
Shelby Co Hickory Dell Estates WWTPHW:34863	160 population served	2012
Lake Co Sunshine Acres WWTPHW:35206	160 population served	2012
Auglaize Co Pleasantview EstatesHW:35305	160 population served	2012
Pickaway Co Circle Hills WWTPHW:35343	160 population served	2012
Pickaway Co Knollwood Village WWTPHW:35345	160 population served	2012
Trumbull Co Vienna 1 WWTPHW:35461	160 population served	2012
WESTFIR STPHW:36058	160 population served	2012
DAYVILLE STPHW:36111	160 population served	2012
MUDDY RUN _ GLEN HOPE BORO STPHW:36409	160 population served	2012
WEST STP 3HW:37937	160 population served	2012
METALINE MUNICIPAL STPHW:38729	160 population served	2012
ROCHELLE SOUTHWEST WPCPHW:27084	159 population served	2012
FERDINAND S_T FACILITYHW:27509	159 population served	2012
WEST CHESTER WWTPHW:29129	159 population served	2012
HUNNING HILLS STPHW:31893	159 population served	2012
Fortuna WWTPHW:32224	159 population served	2012
COLLINS WTFHW:32422	159 population served	2012
Knox Co Amity WWTPHW:35083	159 population served	2012
GRAYSON WWTHW:35966	159 population served	2012
Gardner WSDHW:26474	158 population served	2012
Salamonia WWTPHW:28435	158 population served	2012
CHESTER WWTPHW:28565	158 population served	2012
GAYLORD WWTPHW:29677	158 population served	2012
ISLESBORO TREATMENT FACILITYHW:30485	158 population served	2012
STELLA LAGOONHW:32008	158 population served	2012
CORDER S LAGOONHW:32180	158 population served	2012
Lawrence Co Farmview Estates WWTPHW:35211	158 population served	2012
COUNCIL HILL WWTHW:35867	158 population served	2012
MADISON TWP JERSEYTOWN STPHW:36672	158 population served	2012
LITTLE ROCK WWTPHW:28820	157 population served	2012
MARTINSBURG RUSSHW:28862	157 population served	2012
Lightwood Sewer Morehouse ParishHW:30380	157 population served	2012
BARNESTON WWTPHW:32670	157 population served	2012
PAGE WWTPHW:32977	157 population served	2012
CARPIO LAGOONHW:34540	157 population served	2012
FRANNIE LAGOONHW:39673	157 population served	2012
HADDAM WWTPHW:29313	156 population served	2012
NEW CAMBRIA WWTPHW:29616	156 population served	2012
HORACE WWTPHW:29717	156 population served	2012
FCPWSD 3 Tara Place SubdivisionHW:32067	156 population served	2012
MILLER WWTPHW:32885	156 population served	2012
BURLINGTON WWTHW:35711	156 population served	2012
DUBLIN TWP STP Fort LittletonHW:37037	156 population served	2012
SUNBRIGHT STPHW:37520	156 population served	2012
GROVER SEWAGE LAGOONHW:26288	155 population served	2012
SEARSBORO STLHW:29029	155 population served	2012
MORROWVILLE WWTPHW:29315	155 population served	2012
DAMAR WWTPHW:29676	155 population served	2012
NORCATUR WWTPHW:29751	155 population served	2012
EROS STPHW:30264	155 population served	2012
SEVILLE BLACKFEET IRHW:32625	155 population served	2012
TALLWOOD ESTATES WWTPHW:34408	155 population served	2012
LIGNITE LAGOONHW:34619	155 population served	2012
JEFFERSON CO 1 HASTINGS WWTHW:35844	155 population served	2012
MIDWAY LASHW:27076	154 population served	2012
HEPLER WWTPHW:29573	154 population served	2012
PHILIPP Water and Sewer AssociationHW:31687	154 population served	2012
EDISON WWTPHW:32723	154 population served	2012
MAKOTI LAGOONHW:34624	154 population served	2012
MOUNTWOOD PARK WWTPHW:39045	154 population served	2012
NODAWAY WWTPHW:28924	153 population served	2012
SPRING MEADOWS WWTPHW:30542	153 population served	2012
BAINVILLE LAGOONSHW:32569	153 population served	2012
BELDEN WWTPHW:32682	153 population served	2012
DAVEY WWTPHW:32769	153 population served	2012
ELSIE WWTPHW:32790	153 population served	2012
MINGO CO PSD SHADEE WOODS WWTPHW:38941	153 population served	2012
Sedgwick WWTPHW:25654	152 population served	2012
LANESBORO STLHW:28793	152 population served	2012
COLON WWTPHW:32730	152 population served	2012
GRAFTON WWTPHW:33028	152 population served	2012
CASSVILLE STPHW:36541	152 population served	2012
JAMESTOWN SD 2 STPHW:39061	152 population served	2012
HILLSBORO STLHW:28742	151 population served	2012
CIRCLEVILLE WWTPHW:29352	151 population served	2012
MORLAND WWTPHW:29689	151 population served	2012
LONGVILLE STPHW:31313	151 population served	2012
WESTBORO WWTPHW:31987	151 population served	2012
JACKSONVILLE WWTPHW:32000	151 population served	2012
Monroe Co PWSD2 Rush Hill WWTPHW:32374	151 population served	2012
TUNNELTON WWTPHW:38977	151 population served	2012
Shorter WWTFHW:25252	150 population served	2012
Horseshoe Bend Paradise Acres STPHW:25467	150 population served	2012
Felsenthal WWTPHW:25745	150 population served	2012
LEFT HAND STPHW:26405	150 population served	2012
LAKE ELDORA WWTPHW:26412	150 population served	2012
GALETON SAN DISTHW:26426	150 population served	2012
Campo Town ofHW:26477	150 population served	2012
AHSAHKA STPHW:27515	150 population served	2012
Friendship RSDHW:28404	150 population served	2012
MELROSE WWTPHW:28870	150 population served	2012
ST PAUL STPHW:29023	150 population served	2012
DEWAR SD STLHW:29208	150 population served	2012
HOMESTEAD SDHW:29211	150 population served	2012
BARNES WWTPHW:29307	150 population served	2012
GALESBURG WWTPHW:29570	150 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.