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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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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
DUFUR STPDufur0.06 MGD (million gallons per day)2022
Dupree, City ofDupree0.06 MGD (million gallons per day)2022
Colton Wastewater Collection SystemColton0.06 MGD (million gallons per day)2022
Baltic Wastewater Collection System & Lift StationBaltic0.06 MGD (million gallons per day)2022
Corsica Wastewater Collection SystemCorsica0.06 MGD (million gallons per day)2022
Claude WWTPClaude0.06 MGD (million gallons per day)2022
Quitaque WWTPQuitaque0.06 MGD (million gallons per day)2022
Dell City WWTPDell City0.06 MGD (million gallons per day)2022
AUSTWELL STPAustwell0.06 MGD (million gallons per day)2022
Lolita WWTPLolita0.06 MGD (million gallons per day)2022
Riviera WWTPRiviera0.06 MGD (million gallons per day)2022
Wilson WWTPWilson0.06 MGD (million gallons per day)2022
Evant WWTPEvant0.06 MGD (million gallons per day)2022
Abbott WWTPAbbott0.06 MGD (million gallons per day)2022
Par Village WWTPComanche0.06 MGD (million gallons per day)2022
Clovercreek MUD WWTPMagnolia0.06 MGD (million gallons per day)2022
Milford WWTPMilford0.06 MGD (million gallons per day)2022
Goodlow WWTPKerens0.06 MGD (million gallons per day)2022
Southside WWTPLeonard0.06 MGD (million gallons per day)2022
Newcastle WWTPNewcastle0.06 MGD (million gallons per day)2022
Lone Oak WWTPLone Oak0.06 MGD (million gallons per day)2022
New Summerfield WWTPNew Summerfield0.06 MGD (million gallons per day)2022
Winfield WWTPWinfield0.06 MGD (million gallons per day)2022
Diana WWTPDiana0.06 MGD (million gallons per day)2022
Kennard WWTPKennard0.06 MGD (million gallons per day)2022
RIVERSIDE STPBryan0.06 MGD (million gallons per day)2022
Rivercrest WWTPLufkin0.06 MGD (million gallons per day)2022
Beasley WWTPBeasley0.06 MGD (million gallons per day)2022
SAN FELIPE WWTPDel Rio0.06 MGD (million gallons per day)2022
Commodore Cove WWTPFreeport0.06 MGD (million gallons per day)2022
BRYCE CANYON CITYBryce0.06 MGD (million gallons per day)2022
Danville WWTFDanville0.06 MGD (million gallons per day)2022
SURRY STPSurry0.06 MGD (million gallons per day)2022
ROSE HILL STP & Collection SystemRose Hill0.06 MGD (million gallons per day)2022
WATERFORD STPWaterford0.06 MGD (million gallons per day)2022
SACHEEN LAKE WATER & SEWER DISTRICTNewport0.06 MGD (million gallons per day)2022
PAX WWTPPax0.06 MGD (million gallons per day)2022
LAKE FLOYD PSD WWTPSalem0.06 MGD (million gallons per day)2022
CAMP CREEK AREA WWTPBeckley0.06 MGD (million gallons per day)2022
BRAZEAU SD #1 - STPPound0.06 MGD (million gallons per day)2022
Saint Joseph SD #1 - STPLa Crosse0.06 MGD (million gallons per day)2022
Valley Ridge CWC - STPLynxville0.06 MGD (million gallons per day)2022
BIRCHWOOD STPBirchwood0.06 MGD (million gallons per day)2022
COBB STPCobb0.06 MGD (million gallons per day)2022
GRANTON WWTPGranton0.06 MGD (million gallons per day)2022
LINDEN STPLinden0.06 MGD (million gallons per day)2022
OXFORD WWTPOxford0.06 MGD (million gallons per day)2022
PLUM CITY WWTPPlum City0.06 MGD (million gallons per day)2022
POPLAR STPPoplar0.06 MGD (million gallons per day)2022
ST. NAZIANZ WWTPSaint Nazianz0.06 MGD (million gallons per day)2022
SHELDON WWTPSheldon0.06 MGD (million gallons per day)2022
DALE SD #1 - WWTPDale0.06 MGD (million gallons per day)2022
SULLIVAN SD #1 WWTPSullivan0.06 MGD (million gallons per day)2022
DE SOTO STPDe Soto0.06 MGD (million gallons per day)2022
LINGLE LAGOONTorrington0.06 MGD (million gallons per day)2022
Fort Yukon LagoonFort Yukon0.059 MGD (million gallons per day)2022
Akiachak LagoonAkiachak0.059 MGD (million gallons per day)2022
Greenway WWTPGreenway0.059 MGD (million gallons per day)2022
RICHFIELD LAGOONSRichfield0.059 MGD (million gallons per day)2022
UTE WWTLUte0.059 MGD (million gallons per day)2022
DEXTER WWTPDexter0.059 MGD (million gallons per day)2022
WETMORE WWTPWetmore0.059 MGD (million gallons per day)2022
MILFORD WWTPMilford0.059 MGD (million gallons per day)2022
POTWIN WWTPPotwin0.059 MGD (million gallons per day)2022
VERNON CENTER WWTPVernon Center0.059 MGD (million gallons per day)2022
KNIGHT, TOWN OF - STPIron Belt0.059 MGD (million gallons per day)2022
Unicoi State Park LASHelen0.058 MGD (million gallons per day)2022
BASALT LAGOON/COLLECTION SYSTEMBasalt0.058 MGD (million gallons per day)2022
MUD LAKE STPTerreton0.058 MGD (million gallons per day)2022
PLYMOUTH STPPlymouth0.058 MGD (million gallons per day)2022
CHARTER OAK LGNCharter Oak0.058 MGD (million gallons per day)2022
CRESCENT WWTPCrescent0.058 MGD (million gallons per day)2022
DONAHUE WWTPDonahue0.058 MGD (million gallons per day)2022
IRETON WWTPIreton0.058 MGD (million gallons per day)2022
TORONTO WWTPToronto0.058 MGD (million gallons per day)2022
RODESSA STPRodessa0.058 MGD (million gallons per day)2022
SINCLAIR WWTFSinclair0.058 MGD (million gallons per day)2022
Oklee WWTPOklee0.058 MGD (million gallons per day)2022
STERLING WWTPSterling0.058 MGD (million gallons per day)2022
RAMAH WWT PLANTRamah0.058 MGD (million gallons per day)2022
Fort Covington (T) WWTPFort Covington0.058 MGD (million gallons per day)2022
Annona WWTPAnnona0.058 MGD (million gallons per day)2022
WARM SPRINGS PSD - GRT CACAPON TPBerkeley Springs0.058 MGD (million gallons per day)2022
Rosholt - STPRosholt0.058 MGD (million gallons per day)2022
RUDD WWTPRudd0.057 MGD (million gallons per day)2022
BENTLEY WWTPBentley0.057 MGD (million gallons per day)2022
LINWOOD WWTPLinwood0.057 MGD (million gallons per day)2022
HOPE WWTPHope0.057 MGD (million gallons per day)2022
LONGTON WWTPLongton0.057 MGD (million gallons per day)2022
RUTHTON WWTPRuthton0.057 MGD (million gallons per day)2022
FISHER WWTPFisher0.057 MGD (million gallons per day)2022
Gardiner (T) SD#1 STPGardiner0.057 MGD (million gallons per day)2022
Vanderbilt WWTPVanderbilt0.057 MGD (million gallons per day)2022
Edison WWTFBow0.057 MGD (million gallons per day)2022
LA VALLE STPLa Valle0.057 MGD (million gallons per day)2022
LONE ROCK STPLone Rock0.057 MGD (million gallons per day)2022
MORRISON SD #1 STPWrightstown0.057 MGD (million gallons per day)2022
HATFIELD SD #1 - STPMerrillan0.057 MGD (million gallons per day)2022
Combeewoods WWTFLakeland0.056 MGD (million gallons per day)2022
Rochelle Southwest WPCPRochelle0.056 MGD (million gallons per day)2022

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.