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World wastewater treatment plant observatory · data as reported by each inventory

Wastewater treatment plants in the United States

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All countries

17,009 inventory records · EPA Clean Watersheds Needs Survey 2022

Data years: 2022. The inventory date does not establish current operation.

States

17,009 results

CompareNameNative sizeYear
LegadoLafayette0.004 MGD (million gallons per day)2022
BANKSTON STPDyersville0.004 MGD (million gallons per day)2022
WELLINGTON LAKE WWTPWellington0.004 MGD (million gallons per day)2022
HV CO SD (FARMINGTON ADD) WWTPNewton0.004 MGD (million gallons per day)2022
WINFIELD CITY LAKE WWTPWinfield0.004 MGD (million gallons per day)2022
Perry Co SD #1 - Chavies WWTPChavies0.004 MGD (million gallons per day)2022
SORRENTO WWTFSorrento0.004 MGD (million gallons per day)2022
Highview Subdivision West WWTFFulton0.004 MGD (million gallons per day)2022
JCPSD Otto Express Mart WWTPBarnhart0.004 MGD (million gallons per day)2022
JCPSD Pine Grove Manor Apts WWTPHouse Springs0.004 MGD (million gallons per day)2022
MDC Powder Valley Nature Center WWTPSaint Louis0.004 MGD (million gallons per day)2022
St. Joe State ParkPark Hills0.004 MGD (million gallons per day)2022
Trail of Tears State ParkJackson0.004 MGD (million gallons per day)2022
Lancaster Grange WWTFLancaster0.004 MGD (million gallons per day)2022
Great Valley (T) FairView Subd.SD#4Great Valley0.004 MGD (million gallons per day)2022
SIBLEY WASTEWATERLuverne0.004 MGD (million gallons per day)2022
Madison Co Wissalohichan SSD WWTP & SewersWest Jefferson0.004 MGD (million gallons per day)2022
PLEASANT HILL STPPleasant Hill0.004 MGD (million gallons per day)2022
Grove Hill School STP-Page CountyShenandoah0.004 MGD (million gallons per day)2022
Newhalem Wastewater Treatment PlantMarblemount0.004 MGD (million gallons per day)2022
RALEIGH - UG SLAB FORK OSSSlab Fork0.004 MGD (million gallons per day)2022
RALEIGH - UG STONECOAL CRK OSSSophia0.004 MGD (million gallons per day)2022
TWO BUTTES WWTFTwo Buttes0.003 MGD (million gallons per day)2022
Golden Holiday WWTFOcala0.003 MGD (million gallons per day)2022
EMPORIA LAKE KAHOLA WWTPCouncil Grove0.003 MGD (million gallons per day)2022
Palisades Point WWTPLake Ozark0.003 MGD (million gallons per day)2022
Turning PointWarrenton0.003 MGD (million gallons per day)2022
CGCRCSD Homestead Place WWTFJackson0.003 MGD (million gallons per day)2022
Clyde Hamrick Elementary School WWTPImperial0.003 MGD (million gallons per day)2022
Lake Wappapello State ParkWilliamsville0.003 MGD (million gallons per day)2022
MDNR Pomme De Terre SP - Pittsburg WWTFPittsburg0.003 MGD (million gallons per day)2022
LORTON SEPTIC TANKSLorton0.003 MGD (million gallons per day)2022
ANTLER WASTEWATERAntler0.003 MGD (million gallons per day)2022
Buckland LagoonBuckland0.002 MGD (million gallons per day)2022
Shageluk LagoonShageluk0.002 MGD (million gallons per day)2022
Northway LagoonNorthway0.002 MGD (million gallons per day)2022
Brevig Mission LagoonBrevig Mission0.002 MGD (million gallons per day)2022
Tununak LagoonTununak0.002 MGD (million gallons per day)2022
Green Gables Lodge WWTFMacks Creek0.002 MGD (million gallons per day)2022
Saratoga Subdivision WWTFFulton0.002 MGD (million gallons per day)2022
CGCRCSD Westbridge Place Subd. WWTFJackson0.002 MGD (million gallons per day)2022
Bridger Pines County W & S DistrictBozeman0.002 MGD (million gallons per day)2022
FORTUNA WASTEWATERFortuna0.002 MGD (million gallons per day)2022
Wayne County Airport WWTPSmithville0.002 MGD (million gallons per day)2022
New Franklin WWTP and Collection SystemAkron0.002 MGD (million gallons per day)2022
Ruby LagoonRuby0.001 MGD (million gallons per day)2022
White Mountain LagoonWhite Mountain0.001 MGD (million gallons per day)2022
Napaskiak LagoonBethel0.001 MGD (million gallons per day)2022
Eek LagoonEek0.001 MGD (million gallons per day)2022
Chauthbaluk LagoonBethel0.001 MGD (million gallons per day)2022
Tyonek LagoonTyonek0.001 MGD (million gallons per day)2022
Beaver LagoonBeaver0.001 MGD (million gallons per day)2022
Birch Creek LagoonFort Yukon0.001 MGD (million gallons per day)2022
Chalkyitsik WWTPChalkyitsik0.001 MGD (million gallons per day)2022
Crooked Creek WWTPCrooked Creek0.001 MGD (million gallons per day)2022
Nunapitchuk LagoonsNunapitchuk0.001 MGD (million gallons per day)2022
Pedro Bay LagoonPedro Bay0.001 MGD (million gallons per day)2022
Point Lay LagoonPoint Lay0.001 MGD (million gallons per day)2022
Stevens Village LagoonStevens Village0.001 MGD (million gallons per day)2022
Tetlin LagoonTok0.001 MGD (million gallons per day)2022
Venetie LagoonVenetie0.001 MGD (million gallons per day)2022
Kongiganak LagoonKongiganak0.001 MGD (million gallons per day)2022
Atmautlauk LagoonBethel0.001 MGD (million gallons per day)2022
Chignik Lagoon LagoonChignik Lagoon0.001 MGD (million gallons per day)2022
Kwigillingok LagoonKwigillingok0.001 MGD (million gallons per day)2022
Pilot Point LagoonPilot Point0.001 MGD (million gallons per day)2022
Chignik LagoonChignik0.001 MGD (million gallons per day)2022
BARRY WWTFBarry0.001 MGD (million gallons per day)2022
NORTHERN TWP WWTFBemidji0.001 MGD (million gallons per day)2022
VENTURIA WASTEWATERAshley0.001 MGD (million gallons per day)2022
Village of Newtown Moundview Park WWTPCincinnati0.001 MGD (million gallons per day)2022
SELKIRK SCHOOL DIST 70Ione0.001 MGD (million gallons per day)2022
Occidental WWTFCWNS2022_06001017001Not reported MGD (million gallons per day)Not reported
REDWAY WWTFCWNS2022_06001019001Not reported MGD (million gallons per day)Not reported
Russian River County WWTFCWNS2022_06001029001Not reported MGD (million gallons per day)Not reported
SONOMA CO AIRPORT WWTFCWNS2022_06001031001Not reported MGD (million gallons per day)Not reported
North Point WPCPSan FranciscoNot reported MGD (million gallons per day)2022
ATASCADERO ST HOSP WWTFCWNS2022_06003051001Not reported MGD (million gallons per day)Not reported
Oak Shores WWTFCWNS2022_06003071001Not reported MGD (million gallons per day)Not reported
BIG BASIN ST PK WWTFCWNS2022_06003100001Not reported MGD (million gallons per day)Not reported
GORMAN WWTFCWNS2022_06004008001Not reported MGD (million gallons per day)Not reported
WARM SPRINGS REHAB WWTFCWNS2022_06004008002Not reported MGD (million gallons per day)Not reported
TRANCAS WWTFCWNS2022_06004008003Not reported MGD (million gallons per day)Not reported
MILLER-KILPATRICK WWTFCWNS2022_06004008012Not reported MGD (million gallons per day)Not reported
MUNTZ-MENDENHALL WWTFCWNS2022_06004008014Not reported MGD (million gallons per day)Not reported
PAIGE-AFFLERBAUGH WWTFCWNS2022_06004008016Not reported MGD (million gallons per day)Not reported
DISCOVERY BAY WWTFCWNS2022_06005020001Not reported MGD (million gallons per day)Not reported
TRANQUILLITY WWTFCWNS2022_06005036001Not reported MGD (million gallons per day)Not reported
Mule Creek State Prison WWTFCWNS2022_06005111001Not reported MGD (million gallons per day)Not reported
Santa Nella WWTFCWNS2022_06005119001Not reported MGD (million gallons per day)Not reported
DAVIS CAMPUS WWTFCWNS2022_06005176001Not reported MGD (million gallons per day)Not reported
LAKE CO SE REG WWTFCWNS2022_06005256001Not reported MGD (million gallons per day)Not reported
Robbins WWTFCWNS2022_06005640002Not reported MGD (million gallons per day)Not reported
Rio Ramaza WWTFCWNS2022_06005640003Not reported MGD (million gallons per day)Not reported
SEELEY CREEK WWTFCWNS2022_06006021002Not reported MGD (million gallons per day)Not reported
CLEGHORN WWTFCWNS2022_06006021003Not reported MGD (million gallons per day)Not reported
BIG PINE WWTFCWNS2022_06006026001Not reported MGD (million gallons per day)Not reported
Santa Maria Reclamation PlantCWNS2022_06009027001Not reported MGD (million gallons per day)Not reported
Uptown Columbus CSOColumbusNot reported MGD (million gallons per day)2022
HephzibahCWNS2022_13000000867Not reported MGD (million gallons per day)Not reported

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.

References reviewed: 2026-11-06. Individual applicability: undetermined. This profile does not establish authorization or compliance.