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

Wastewater treatment plants in United States · Missouri

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836 inventory records · EPA Clean Watersheds Needs Survey 2022

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

836 results

CompareNameNative sizeYear
Kennett WWTPKennett1.4 MGD (million gallons per day)2022
Mt. Vernon WWTPMount Vernon1.35 MGD (million gallons per day)2022
Troy WWTPTroy1.3 MGD (million gallons per day)2022
Oak Grove WWTPOak Grove1.3 MGD (million gallons per day)2022
Waynesville WWTPWaynesville1.25 MGD (million gallons per day)2022
Glaize Creek WWTPBarnhart1.2 MGD (million gallons per day)2022
Moscow Mills Crooked CreekMoscow Mills1.2 MGD (million gallons per day)2022
Kearney WWTPKearney1.13 MGD (million gallons per day)2022
Smithville WWTPSmithville1.125 MGD (million gallons per day)2022
Cassville WWTPCassville1.1 MGD (million gallons per day)2022
St. Clair WWTPSaint Clair1.06 MGD (million gallons per day)2022
Herculaneum WWTPHerculaneum1.045 MGD (million gallons per day)2022
Brookfield WWTPBrookfield1 MGD (million gallons per day)2022
Rolla SW WWTPRolla1 MGD (million gallons per day)2022
Odessa SE WWTFOdessa1 MGD (million gallons per day)2022
Odessa NW WWTPOdessa1 MGD (million gallons per day)2022
Eldon Treatment PlantEldon1 MGD (million gallons per day)2022
St. Robert WWTPSaint Robert1 MGD (million gallons per day)2022
Savannah WWTPSavannah1 MGD (million gallons per day)2022
Caruthersville WWTPCaruthersville1 MGD (million gallons per day)2022
Elk Valley WWTFOzark1 MGD (million gallons per day)2022
St. James WWTPSaint James1 MGD (million gallons per day)2022
Rogersville WWTPRogersville0.96 MGD (million gallons per day)2022
El Dorado Springs WWTPEl Dorado Springs0.95 MGD (million gallons per day)2022
Seneca WWTPSeneca0.9 MGD (million gallons per day)2022
Bonne Terre N.E. WWTPBonne Terre0.9 MGD (million gallons per day)2022
Hayti Aerated WWT LagoonHayti0.88 MGD (million gallons per day)2022
BCRSD South Route K WWTPColumbia0.87 MGD (million gallons per day)2022
Pike Creek Sewer District WWTFPoplar Bluff0.85 MGD (million gallons per day)2022
Northeast Correctional Center WWTPBowling Green0.85 MGD (million gallons per day)2022
Fredericktown WWTPFredericktown0.85 MGD (million gallons per day)2022
Centralia WWTPCentralia0.806 MGD (million gallons per day)2022
Union East STPUnion0.8 MGD (million gallons per day)2022
Algoa Regional WWTFJefferson City0.8 MGD (million gallons per day)2022
Monroe City WWTPMonroe City0.8 MGD (million gallons per day)2022
Cabool WWTPCabool0.8 MGD (million gallons per day)2022
Mountain Grove WWTP EastMountain Grove0.8 MGD (million gallons per day)2022
Mountain Grove WWTP WestMountain Grove0.8 MGD (million gallons per day)2022
Fayette WWTPFayette0.79 MGD (million gallons per day)2022
Scott City WWTPScott City0.78 MGD (million gallons per day)2022
Forsyth WWTPForsyth0.78 MGD (million gallons per day)2022
Appleton City WWTPAppleton City0.78 MGD (million gallons per day)2022
Dexter West WWTPDexter0.775 MGD (million gallons per day)2022
Lamar WWTPLamar0.77 MGD (million gallons per day)2022
Peculiar WWTPPeculiar0.75 MGD (million gallons per day)2022
Richmond N WWTPRichmond0.75 MGD (million gallons per day)2022
Lexington WWTPLexington0.75 MGD (million gallons per day)2022
Lincoln County PWSD #1 WWTPWinfield0.75 MGD (million gallons per day)2022
Louisiana WWTPLouisiana0.75 MGD (million gallons per day)2022
Parkville WWTPKansas City0.749 MGD (million gallons per day)2022
Salem WWTPSalem0.741 MGD (million gallons per day)2022
Branson West, S. Aunts CreekBranson0.74 MGD (million gallons per day)2022
Tipton WWTPTipton0.74 MGD (million gallons per day)2022
Concordia N. LagoonConcordia0.71 MGD (million gallons per day)2022
Ste Genevieve WWTPSainte Genevieve0.7 MGD (million gallons per day)2022
Milan WWTPMilan0.7 MGD (million gallons per day)2022
Buffalo WWTPBuffalo0.7 MGD (million gallons per day)2022
Ava WWTPAva0.7 MGD (million gallons per day)2022
Potosi WWTPPotosi0.683 MGD (million gallons per day)2022
Malden Ind. Park LagMalden0.68 MGD (million gallons per day)2022
Shelbina WWTPShelbina0.662 MGD (million gallons per day)2022
Camdenton WWTPCamdenton0.64 MGD (million gallons per day)2022
Anderson WWTPAnderson0.62 MGD (million gallons per day)2022
Bonne Terre N.W. WWTPBonne Terre0.61 MGD (million gallons per day)2022
SCCPWSD #2 Hickory Trails WWTPWright City0.6 MGD (million gallons per day)2022
Ashland WWTPAshland0.6 MGD (million gallons per day)2022
East Prairie WWTPEast Prairie0.6 MGD (million gallons per day)2022
Rockaway Beach WWTPRockaway Beach0.6 MGD (million gallons per day)2022
Higginsville S. LagoonHigginsville0.6 MGD (million gallons per day)2022
Owensville WWTPOwensville0.6 MGD (million gallons per day)2022
Vandalia WWTPVandalia0.593 MGD (million gallons per day)2022
Bourbon WWTPBourbon0.58 MGD (million gallons per day)2022
Portageville WWTPPortageville0.561 MGD (million gallons per day)2022
Platte City WWTPPlatte City0.55 MGD (million gallons per day)2022
Versailles WWTPVersailles0.55 MGD (million gallons per day)2022
Chaffee WWTPChaffee0.51 MGD (million gallons per day)2022
Holts Summit WWTPHolts Summit0.5 MGD (million gallons per day)2022
Thayer WWTPThayer0.5 MGD (million gallons per day)2022
Wright City South WWTPWright City0.5 MGD (million gallons per day)2022
Buckner WWTPBuckner0.5 MGD (million gallons per day)2022
Palmyra WWTPPalmyra0.5 MGD (million gallons per day)2022
Knob Noster WWTPKnob Noster0.5 MGD (million gallons per day)2022
JCPSD Lower Big River WWTPHouse Springs0.5 MGD (million gallons per day)2022
Mountain View WWTPMountain View0.5 MGD (million gallons per day)2022
Montgomery City East WWTPMontgomery City0.5 MGD (million gallons per day)2022
Bethany WWTPBethany0.5 MGD (million gallons per day)2022
Marionville WWTPMarionville0.5 MGD (million gallons per day)2022
Linn WWTPLinn0.49 MGD (million gallons per day)2022
Kimberling CityKimberling City0.48 MGD (million gallons per day)2022
Moberly Correctional Center WWTFMoberly0.47 MGD (million gallons per day)2022
Hermann Industrial Tract LagoonHermann0.46 MGD (million gallons per day)2022
BCRSD Rocky Fork WWTPColumbia0.46 MGD (million gallons per day)2022
Doniphan Municipal WWTFDoniphan0.456 MGD (million gallons per day)2022
Kahoka WWTPKahoka0.45 MGD (million gallons per day)2022
Warsaw WWTPWarsaw0.45 MGD (million gallons per day)2022
CGCRCSD Fruitland WWTFJackson0.43 MGD (million gallons per day)2022
Licking WWTPLicking0.43 MGD (million gallons per day)2022
Willow Springs WWTPWillow Springs0.405 MGD (million gallons per day)2022
Sikeston Business and Technology Park WWTPSikeston0.4 MGD (million gallons per day)2022
Rolla Vichy Road WWTPRolla0.4 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.