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
EDINBURG LAGOONHW:34566	196 population served	2012
TEXAS CO 1ADAMS WWTHW:35989	196 population served	2012
ATLANTA WWTPHW:29794	195 population served	2012
ALLIGATOR POTWHW:31380	195 population served	2012
HIGH HILL WWTPHW:32142	195 population served	2012
OTOE WWTPHW:32908	195 population served	2012
Scioto Co Briarcliff Complex WWTPHW:35237	195 population served	2012
MENO WWTHW:35899	195 population served	2012
WILSON STPHW:39520	195 population served	2012
SCOTT SD 1 STPHW:39610	195 population served	2012
EDGERTON LAGOONHW:39702	195 population served	2012
AURORA STLHW:28499	194 population served	2012
REASNOR STLHW:28989	194 population served	2012
NORTHOME WWTPHW:31307	194 population served	2012
BERGER WWTPHW:31870	194 population served	2012
COPPER CITY STPHW:31141	193 population served	2012
MOORE WWTPHW:32584	193 population served	2012
BERK CO PSSD FOREST HGTS II 1 TPHW:38791	193 population served	2012
BERK CO PSSD FOREST HGTS II 2 TPHW:38792	193 population served	2012
STOUT WWTPHW:29065	192 population served	2012
OLSBURG WWTPHW:29320	192 population served	2012
OCEA Lockwood Estates WWTPHW:30070	192 population served	2012
DENT STPHW:31310	192 population served	2012
STOUTLAND WWTPHW:32340	192 population served	2012
WILLOW CREEK SEWER DISTHW:32598	192 population served	2012
PETERSBURG LAGOONHW:34657	192 population served	2012
SANBORN LAGOONHW:34674	192 population served	2012
Lake Co Dodd s Hill WWTPHW:35204	192 population served	2012
KENEFIC WWTHW:35736	192 population served	2012
GRADY CO 1 POCASSET WWTHW:35809	192 population served	2012
GLENCOE SW WWTHW:35948	192 population served	2012
Farmington Twp STPHW:36961	192 population served	2012
Burdette WWTPHW:25679	191 population served	2012
BERNARD STPHW:28515	191 population served	2012
HARDTNER WWTPHW:29251	191 population served	2012
EMMETT WWTPHW:29358	191 population served	2012
WILSEY WWTPHW:29608	191 population served	2012
GRAND CANE STPHW:30241	191 population served	2012
BEE WWTPHW:32680	191 population served	2012
MANLEY WWTPHW:32944	191 population served	2012
Alpine County Service DistrictHW:36168	191 population served	2012
ELK MOUNTAIN LAGOONHW:39674	191 population served	2012
SHAMBAUGH WWTPHW:29031	190 population served	2012
PECK Imp Dist WWTPHW:29278	190 population served	2012
PATTEN STPHW:30495	190 population served	2012
Deer Haven EstatesHW:31818	190 population served	2012
PURDIN WWTPHW:31826	190 population served	2012
AMORET WWTPHW:32161	190 population served	2012
GOEHNER WWTPHW:32825	190 population served	2012
STAMFORD WWTPHW:33037	190 population served	2012
Elma T SD4 STPHW:34090	190 population served	2012
Hocking Co Lake Moor Estates WWTPHW:35222	190 population served	2012
VERA WWTHW:36011	190 population served	2012
BESSIE WWTHW:36012	190 population served	2012
ANDOVER STPHW:37298	190 population served	2012
Bailey WWTPHW:37911	190 population served	2012
HARMAN WWTPHW:39002	190 population served	2012
ANSELMO WWTPHW:32649	189 population served	2012
DENTON STPHW:32772	189 population served	2012
MOUNT HOPE STPHW:39187	189 population served	2012
Drummond SD 1 WWTPHW:39564	189 population served	2012
Gilmore WWTPHW:25539	188 population served	2012
PAIGE AFFLERBAUGH WWTFHW:25942	188 population served	2012
PRINCETON HAMPTONHW:27433	188 population served	2012
FREDERIKA STLHW:28693	188 population served	2012
MILLERSBURG WWTPHW:28876	188 population served	2012
STURGIS POTWHW:31617	188 population served	2012
MOKANE WWTPHW:31830	188 population served	2012
COWGILL WWTPHW:32378	188 population served	2012
NEMAHA WWTPHW:32661	188 population served	2012
BUFFALO LAGOONHW:34460	188 population served	2012
HALLIDAY LAGOONHW:34595	188 population served	2012
OAK HILL INDUSTRIAL PARK WWTPHW:38834	188 population served	2012
MARSHALL CO SD SUNNYSIDE WWTPHW:38914	188 population served	2012
EXLINE WWTPHW:28672	187 population served	2012
STOCKTON WWTPHW:29062	187 population served	2012
Richland Co Harp Subdivision WWTPHW:35380	187 population served	2012
INDIAHOMA EAST WWTHW:35705	187 population served	2012
INDIAHOMA WEST WWTHW:35706	187 population served	2012
HARTLETON BORO STPHW:36668	187 population served	2012
PORT OF EPES LAGOONHW:25158	186 population served	2012
McDougal WWTPHW:25509	186 population served	2012
SHERRILL EAST WWTPHW:29038	186 population served	2012
DENTON WWTPHW:29530	186 population served	2012
Royalston Dept of Public WorksHW:30806	186 population served	2012
MERRIMAN WWTPHW:32651	186 population served	2012
Sidney Municipal WWTPHW:28436	185 population served	2012
VINCENT STLHW:29100	185 population served	2012
WALCOTT STP NORTHHW:29104	185 population served	2012
IUKA WWTPHW:29272	185 population served	2012
Homestead Village WWTPHW:32019	185 population served	2012
VIBURNUM TRAILER PK LAGHW:32426	185 population served	2012
GILDFORD LAGOONHW:32592	185 population served	2012
CARLETON WWTPHW:32726	185 population served	2012
Lorain Co Plum Creek WWTPHW:35231	185 population served	2012
EAGLE ROCK SEWER SYSTEMHW:38433	185 population served	2012
BERK CO PSSD FOREST HGTS I WWTPHW:38790	185 population served	2012
Lincoln Hills School WWTPHW:39118	185 population served	2012
MERIDEN WWTPHW:28872	184 population served	2012
FULTON WWTPHW:29486	184 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.