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
Morristown V STPHW:33885	400 population served	2012
Lawrence T STP and On Site SysHW:33897	400 population served	2012
Rushville WWTP and Sewer SystemHW:35386	400 population served	2012
WEST EARL BROWNSTOWN STPHW:36376	400 population served	2012
HENDERSON TWP STPHW:36934	400 population served	2012
WEST FALLOWFIELD TWP STPHW:37003	400 population served	2012
FOLLY BEACH COLL SYSHW:37192	400 population served	2008
GCWandSD_North Santee WWTPHW:37203	400 population served	2008
WINDTHORST WWTPHW:37886	400 population served	2012
Kendleton WWTPHW:38019	400 population served	2012
CABOT COLLECTION_TREATHW:38301	400 population served	2012
BASTIAN WWTP and COLLECTION SYSTEMHW:38526	400 population served	2012
LEON WWTPHW:38919	400 population served	2012
BLACKSVILLE WWTPHW:38944	400 population served	2012
PCSPSD BRUCETON MILLS WWTPHW:38970	400 population served	2012
BUTTERNUT WWTPHW:39136	400 population served	2012
DEKALB POTW NUMBER 2HW:31448	399 population served	2012
WEST POTWHW:31653	399 population served	2012
WASHINGTON TOWNSHIPHW:36946	399 population served	2012
BROOKS SEWAGE TREATMENT PLANTHW:36093	398 population served	2012
BRAVE STPHW:36836	398 population served	2012
INDIANA CO MSA CREEKSIDE STPHW:37021	398 population served	2012
CAMELOT SEWAGE TREATMENTHW:38415	398 population served	2012
TABLE ROCK WWTPHW:32712	397 population served	2012
SNYDER WWTPHW:32815	397 population served	2012
LOOMIS WWTPHW:32901	397 population served	2012
CHAMBERS WWTPHW:32979	397 population served	2012
DOUGLAS CO SID 196 WWTP GINGER CVHW:33101	397 population served	2012
Bailey Lakes WWTP and Sewer SystemHW:34924	397 population served	2012
SLTMA COLEBROOK STPHW:36346	397 population served	2012
CADOGAN TWP STPHW:36731	397 population served	2012
MNTN TOP PSD ELK GARDEN WWTPHW:38933	397 population served	2012
Delight WWTPHW:25620	396 population served	2012
TANEYVILLE WWTPHW:32122	396 population served	2012
LONG PINE WWTPHW:32900	396 population served	2012
WORTHING WWTPHW:37292	396 population served	2012
BENNETT STLHW:28514	395 population served	2012
Gardner T SD1 STP and On Site SysHW:33671	395 population served	2012
Colton STPHW:38778	395 population served	2012
READSTOWN WWTPHW:39412	395 population served	2012
HILAND ACRES WSDHW:26290	394 population served	2012
CHARLOTTE STLHW:28561	394 population served	2012
LONGTON WWTPHW:29789	394 population served	2012
NEW STRAWN WWTPHW:29819	394 population served	2012
ROSEBUD SOUTH WWTPHW:31824	394 population served	2012
LYNNVILLE STLHW:28835	393 population served	2012
FRENCH CAMP POTWHW:31477	393 population served	2012
BELLFLOWER WWTPHW:32141	393 population served	2012
CUSTER CITY WWTHW:35775	393 population served	2012
OLNEY SPRINGS WWTPHW:26384	392 population served	2012
DUPONT STPHW:28287	392 population served	2012
NEW ERA STPHW:31074	392 population served	2012
Gray Summit SD WWTFHW:32057	392 population served	2012
DOZIER LAGOONHW:25155	391 population served	2012
Robbins WWTFHW:26155	391 population served	2012
ARCADIA WWTPHW:29473	391 population served	2012
GORDONVILLE WWTPHW:32075	391 population served	2012
GREENFIELD SE WWTP TALBURTHW:32410	391 population served	2012
STOVAL WWTPHW:34246	391 population served	2012
LETTS WWTPHW:28811	390 population served	2012
WESLEY WWTPHW:29125	390 population served	2012
GLEN ELDER WWTPHW:29681	390 population served	2012
Knott County Water and Sewer CANEY CREEK WWTPHW:30086	390 population served	2012
PLAINFIELD TWP WWSLHW:30848	390 population served	2012
POTTER WWTPHW:32999	390 population served	2012
Stratford Village WWTFHW:33169	390 population served	2012
Williams Co Norlick Place WWTPHW:34899	390 population served	2012
MOUNTAIN PARK WWTHW:35613	390 population served	2012
Blum WWTPHW:37765	390 population served	2012
Cold Brook Fire District No 1HW:38304	390 population served	2012
JUDA SD 1 WWTPHW:39272	390 population served	2012
GILTNER WWTPHW:32823	389 population served	2012
HILDRETH WWTPHW:32860	389 population served	2012
DE SOTO STPHW:39630	389 population served	2012
BURWELL ROAD WWTPHW:24994	388 population served	2012
Point O Woods WWTFHW:26990	388 population served	2012
ODUM LASHW:27079	388 population served	2012
MELVERN WWTPHW:29491	388 population served	2012
TUPELO WWTHW:35764	388 population served	2012
NELSON TWP STPHW:36466	388 population served	2012
CLYMAN WWTPHW:39160	388 population served	2012
JUNCTION CITY STPHW:39273	388 population served	2012
SPILLVILLE WWTPHW:29177	387 population served	2012
CARMEN WWTHW:35712	387 population served	2012
Grubbs WWTPHW:25617	386 population served	2012
CHURDAN WWTPHW:28567	386 population served	2012
Trumbull Co Mecca 1 WWTPHW:35456	386 population served	2012
TERRAL WWTHW:35592	386 population served	2012
MARSHALL CO SD WASHINGTON WWTPHW:38908	386 population served	2012
Blanca Town ofHW:26492	385 population served	2012
UTE WWTLHW:29094	385 population served	2012
LINN WWTPHW:29460	385 population served	2012
RN CO S D 202 WWTP HABITHW:29823	385 population served	2012
Chesapeake City North STPHW:30555	385 population served	2012
ATLANTA WWTPHW:32325	385 population served	2012
ARCADIA WWTPHW:32652	385 population served	2012
Pitsburg WWTP and SewersHW:34866	385 population served	2012
Carlyon Beach WWTPHW:38622	385 population served	2012
CALLENDER STLHW:28543	384 population served	2012
CLAYTON LAGOONHW:31181	384 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.