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
Mountainburg WWTPHW:25532	631 population served	2012
Fleischmanns V WWTFHW:33772	631 population served	2012
REEDVILLE STPHW:38426	631 population served	2012
Patagonia WWTFHW:25378	630 population served	2012
KIOWA WWTPHW:26345	630 population served	2012
GRANDVIEW WWTPHW:28364	630 population served	2012
LUTHER WWTHW:35656	630 population served	2012
PATEROS S_T FACILITYHW:38736	630 population served	2012
PORT SANILACHW:30953	629 population served	2012
BOLTON POTWHW:31403	629 population served	2012
HARTVILLE WWTPHW:32465	629 population served	2012
Bradley WWTPHW:25647	628 population served	2012
DEXTER WWTPHW:28625	628 population served	2012
SMELTERVILLE S_T FACILITYHW:27437	627 population served	2012
LAWRENCEVILLE BORO AUTHHW:36427	627 population served	2012
HOLLAND WWTPHW:28239	626 population served	2012
PICKFORD TWP STPHW:31155	626 population served	2012
WATERFORD STPHW:38497	626 population served	2012
MASON CO PSD LAKIN WWTPHW:38924	626 population served	2012
BERRY WWTPHW:25132	625 population served	2012
DOWNEY SEWAGE LAGOON SYSTEMHW:27522	625 population served	2012
Liberty T Loomis WWTPHW:33661	625 population served	2012
COVE STPHW:36108	625 population served	2012
SHEFFIELD ACRES_FLATWOODS COLLECTION SYSTEMHW:38324	625 population served	2012
VADER S_T FACILITYHW:38754	625 population served	2012
PRENTICE STPHW:39405	625 population served	2012
SNEAD WWTPHW:25219	624 population served	2012
LIMERICK WWTFHW:30487	624 population served	2012
ST AGATHA WWTPHW:30496	624 population served	2012
GUNNISON POTWHW:31493	624 population served	2012
GARDEN PLAIN WWTPHW:29248	623 population served	2012
WESTMORLAND WWTPHW:29409	623 population served	2012
DRAKESBOROHW:29957	623 population served	2012
COTTAGEVILLE PSD WWTPHW:38871	623 population served	2012
EAU CLAIRE LAGOONHW:31039	622 population served	2012
MCINTOSH WWTPHW:31361	622 population served	2012
HERSHEY WWTPHW:32858	622 population served	2012
TIOGA BORO STPHW:36428	622 population served	2012
Higginson WWTPHW:25758	621 population served	2012
WALKER COUNTY WPCPHW:27032	621 population served	2012
EVANSVILLE WWTFHW:31261	621 population served	2012
COLLBRAN WWTPHW:26377	620 population served	2012
ADVANCE WWTPHW:27971	620 population served	2012
NORTONVILLE WWTPHW:29384	620 population served	2012
Delaware Township MUA CS_ISDS_STPHW:33381	620 population served	2012
Corfu V WWTPHW:33978	620 population served	2012
Lucas WWTP and Sewer SystemHW:35236	620 population served	2012
Portage Co Red Fox WWTPHW:35363	620 population served	2012
MAPLETON STPHW:36527	620 population served	2012
RICES LANDING BORO STPHW:36775	620 population served	2012
ALBION S_T FACILITYHW:38685	620 population served	2012
De Valls Bluff WWTPHW:25713	619 population served	2012
GRAND MOUND STLHW:28713	619 population served	2012
ST CHARLES WWTPHW:29021	619 population served	2012
SIMLA WWTPHW:26388	618 population served	2012
UTICA POTW SOUTHHW:31636	618 population served	2012
CANTON WWTHW:35729	618 population served	2012
CRESCENT WWTPHW:28598	617 population served	2012
BENNINGTON WWTPHW:29671	617 population served	2012
Village of TickfawHW:30141	617 population served	2012
QUEENSTOWN WWTPHW:30610	617 population served	2012
KNOXVILLE BORO TIOGA STPHW:36467	617 population served	2012
AGENCY WWTPHW:28463	616 population served	2012
SEABOARD WWTPHW:34332	616 population served	2012
STOCKTONHW:38200	616 population served	2012
BOSTON HARBOR WWTFHW:38624	616 population served	2012
Hewitt SD WWTPHW:39619	616 population served	2012
CLIFTON VINING WWTPHW:29453	615 population served	2012
DORCHESTER WWTPHW:32780	615 population served	2012
Fulton Co Pettisville WWTPHW:35116	615 population served	2012
ADAIR VILLAGE STPHW:36061	615 population served	2012
LANESVILLE WWTPHW:28263	614 population served	2012
SILVER LAKE WWTPHW:28298	612 population served	2012
SALISBURY WWTPHW:32297	612 population served	2012
GREELEY WWTPHW:32833	612 population served	2012
PINKHILL WWTPHW:34293	612 population served	2012
Saguache Town ofHW:26459	611 population served	2012
CARNESVILLE STPHW:27158	611 population served	2012
FORT TOWSON WWTHW:35758	611 population served	2012
Granada SDHW:26502	610 population served	2012
VIENNA WWTPHW:31795	610 population served	2012
Jeffersonville V Jefferson STPHW:33659	610 population served	2012
Fort Covington T WWTP and On SitesHW:33799	610 population served	2012
NEWTON GROVE WWTPHW:34383	610 population served	2012
ARLINGTON STPHW:36084	610 population served	2012
MONROE STPHW:36152	610 population served	2012
Woodloch WWTPHW:38044	610 population served	2012
CARBONADO S_T FACHW:38548	610 population served	2012
FARMINGTON WWTPHW:38905	610 population served	2012
LAKE TOMAHAWK SD 1 STPHW:39597	610 population served	2012
Plainview Yell Co WWTPHW:25772	608 population served	2012
CANEYVILLE STPHW:29945	608 population served	2012
SEAMA VILLAGE LAGOONSHW:33481	608 population served	2012
REARDAN S_T FACILITYHW:38740	608 population served	2012
BOWMAN PONDHW:27048	606 population served	2012
KELLOGG WWTPHW:28773	606 population served	2012
ALTENBURG WWTPHW:32203	606 population served	2012
MANNSVILLE WWTHW:35847	606 population served	2012
EAST ZION SPECIAL SERVICE DISTRICTHW:38217	606 population served	2012
LONG GROVE WWTPHW:28826	605 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.