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
IONE LAGOONHW:38633	215 population served	2012
BOXHOLM WWTPHW:29185	214 population served	2012
PILOT MOUND WWTPHW:29187	214 population served	2012
CRESTON WWTPHW:32758	214 population served	2012
ALINE WWTHW:35710	214 population served	2012
ROCKDALE STPHW:39428	214 population served	2012
WRIGHTSTOWN SD 2 STPHW:39561	214 population served	2012
NORRIS STPHW:27942	213 population served	2012
PRAIRIEBURG WWTPHW:28975	213 population served	2012
CONCORD WWTPHW:32749	213 population served	2012
RIVERDALE STPHW:33010	213 population served	2012
OLDE SYCAMORE WWTPHW:34406	213 population served	2012
CLYMER TWP SABINSVILLE STPHW:36464	213 population served	2012
TONY STPHW:39481	213 population served	2012
BRUNEAU S_T FACILITYHW:27505	212 population served	2012
Glenwood WWTPHW:28422	212 population served	2012
PANAMA STLHW:28953	212 population served	2012
WOOLSTOCK STLHW:29150	212 population served	2012
MAYVIEW WWTPHW:32170	212 population served	2012
KOSHKONONG WWTPHW:32460	212 population served	2012
FORDVILLE LAGOONHW:34579	212 population served	2012
Guernsey Co Beech Meadows WWTPHW:35157	212 population served	2012
HARDESTY WWTHW:35993	212 population served	2012
CHUGWATER LAGOONHW:39731	212 population served	2012
Watson WWTPHW:25550	211 population served	2012
ALLEN WWTPHW:29472	211 population served	2012
SUMMERFIELD WWTPHW:29539	211 population served	2012
SCHOENCHEN WWTPHW:29656	211 population served	2012
KIRWIN WWTPHW:29685	211 population served	2012
FILLMORE WWTFHW:31839	211 population served	2012
CROSS TIMBERS WWTPHW:32388	211 population served	2012
ROCKFORD WWTPHW:25093	210 population served	2012
Carlin Bay Wastewater SystemHW:27362	210 population served	2012
Briarwood WWTPHW:28395	210 population served	2012
Shamrock LakesHW:28447	210 population served	2012
SOUTH ENGLISH WWTPHW:29050	210 population served	2012
TROY MILLS WWTPHW:29154	210 population served	2012
WRIGHT I D WWTPHW:29719	210 population served	2012
WINIFRED WWTPHW:32505	210 population served	2012
BASIN WandS DISTRICTHW:32614	210 population served	2012
Beekman T WWTP and OWTSHW:33581	210 population served	2012
Junius T SDistrict 1 and On SitesHW:34037	210 population served	2012
MUNICH LAGOONHW:34640	210 population served	2012
Knox Co Bladensburg WWTPHW:35082	210 population served	2012
DCNR LITTLE BUFFALO STATE PK STPHW:36971	210 population served	2012
Yantis WWTPHW:37948	210 population served	2012
BUENA WWTFHW:38683	210 population served	2012
Greenway WWTPHW:25508	209 population served	2012
BRIDGEWATER STLHW:28533	209 population served	2012
PARNELL STLHW:28956	209 population served	2012
BRONSON WWTPHW:29157	209 population served	2012
ELGIN WWTPHW:29767	209 population served	2012
MG CO S D 4 WWTP HAV LAKEHW:29792	209 population served	2012
REPUBLICAN CITY WWTPHW:32644	209 population served	2012
PACKWOOD WWTPHW:28951	208 population served	2012
FONTANA WWTPHW:29480	208 population served	2012
WOODBINE WWTPHW:29666	208 population served	2012
TUNICA CO UD MHOON SEWER COMPANYHW:31689	208 population served	2012
CHULA WWTPHW:32032	208 population served	2012
EDGAR SPRINGS WWTPHW:32475	208 population served	2012
HOSKINS WWTPHW:32864	208 population served	2012
Newcomb T Winebrook STP and On SiteHW:33791	208 population served	2012
GANS WWTHW:35632	208 population served	2012
OSAGE LAGOONHW:39655	208 population served	2012
WEST MINERAL WWTPHW:29584	207 population served	2012
CALVIN LAGOONHW:30345	207 population served	2012
ASBURY WWTPHW:32011	207 population served	2012
TAYLOR WWTPHW:33050	207 population served	2012
KOSSUTH SD 2 STPHW:39586	207 population served	2012
DILLARD WPCPHW:27187	206 population served	2012
BLOOMINGTON S_T FACILITYHW:27475	206 population served	2012
WHITING WWTPHW:29414	206 population served	2012
BROADWATER WWTPHW:32705	206 population served	2012
WARDVILLE RSD WWTHW:35719	206 population served	2012
GOULD WWTHW:35822	206 population served	2012
MEADOW CREEK PSD MEADOW CRK TPHW:39011	206 population served	2012
Kino Springs WWTFHW:25377	205 population served	2012
FOSTORIA WWTPHW:28691	205 population served	2012
SOLDIER WWTPHW:29048	205 population served	2012
DORRANCE WWTPHW:29631	205 population served	2012
JACKSON WWTPHW:32877	205 population served	2012
MARTHA WWTHW:35841	205 population served	2012
WASHTUCNA S_T FACILITYHW:38757	205 population served	2012
GLENDO LAGOONHW:39709	205 population served	2012
Edmondson WWTPHW:25538	204 population served	2012
ALVORD WWTPHW:28479	204 population served	2012
NORTH POLK SCHOOL DISTRICTHW:28971	204 population served	2012
OFFERLE WWTPHW:29729	204 population served	2012
LIVINGSTON STPHW:30004	204 population served	2012
BOLIVAR CO BD OF SUP CHOCTAW SEWEHW:31672	204 population served	2012
SHEYENNE LAGOONHW:34489	204 population served	2012
DES LACS LAGOONHW:34557	204 population served	2012
Geauga Co Plymouth Acres WWTPHW:35129	204 population served	2012
HARRISON S_T FACILITYHW:27499	203 population served	2012
ENSIGN WWTPHW:29710	203 population served	2012
ELBING WWTPHW:29800	203 population served	2012
MARQUAND WWTPHW:32370	203 population served	2012
DAYKIN WWTPHW:32771	203 population served	2012
ENDICOTT WWTPHW:32795	203 population served	2012
RUSKIN WWTPHW:33016	203 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.