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

Wastewater treatment plants in United States · Arkansas

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360 inventory records · EPA Clean Watersheds Needs Survey 2022

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

360 results

CompareNameNative sizeYear
Little Rock - Adams Field WWTPLittle Rock36 MGD (million gallons per day)2022
Springdale WWTPSpringdale24 MGD (million gallons per day)2022
Little Rock - Fourche Creek WWTPLittle Rock16 MGD (million gallons per day)2022
Conway - Tupelo Bayou WWTPConway16 MGD (million gallons per day)2022
Pine Bluff WWTPPine Bluff14 MGD (million gallons per day)2022
Rogers WWTPRogers14 MGD (million gallons per day)2022
Fayetteville - Noland WWTPFayetteville12.6 MGD (million gallons per day)2022
Jacksonville WWTPJacksonville12.31 MGD (million gallons per day)2022
Fort Smith - P Street WWTPFort Smith12 MGD (million gallons per day)2022
North Little Rock - Faulkner LakeNorth Little Rock12 MGD (million gallons per day)2022
Hot Springs - Regional WWTPHot Springs National Park12 MGD (million gallons per day)2022
Fort Smith - Massard Creek WWTPBarling10 MGD (million gallons per day)2022
Fayetteville - Westside WWTPFayetteville10 MGD (million gallons per day)2022
Jonesboro - East WWTPJonesboro9 MGD (million gallons per day)2022
Batesville WWTPBatesville9 MGD (million gallons per day)2022
North Little Rock - White Oak BayouNorth Little Rock8.5 MGD (million gallons per day)2022
Benton WWTPBenton8.3 MGD (million gallons per day)2022
Russellville WWTPRussellville7.3 MGD (million gallons per day)2022
El Dorado - South WWTPEl Dorado7 MGD (million gallons per day)2022
North Little Rock - 5 Mile CreekNorth Little Rock6.6 MGD (million gallons per day)2022
West Memphis WWTPWest Memphis6.3 MGD (million gallons per day)2022
Conway - Stone Dam Creek WWTPConway6 MGD (million gallons per day)2022
Paragould WWTPParagould6 MGD (million gallons per day)2022
Cabot WWTPCabot6 MGD (million gallons per day)2022
Jonesboro - West WWTPJonesboro5.95 MGD (million gallons per day)2022
El Dorado - North WWTPEl Dorado5 MGD (million gallons per day)2022
Searcy WWTPSearcy5 MGD (million gallons per day)2022
Mountain Home WWTPMountain Home5 MGD (million gallons per day)2022
Siloam Springs WWTPSiloam Springs4.4 MGD (million gallons per day)2022
Little Rock - Little Maumelle WWTPLittle Rock4 MGD (million gallons per day)2022
Green Forest WWTPGreen Forest4 MGD (million gallons per day)2022
Van Buren - Main WWTPVan Buren4 MGD (million gallons per day)2022
Bentonville WWTPBentonville4 MGD (million gallons per day)2022
De Queen WWTPDe Queen4 MGD (million gallons per day)2022
Decatur WWTPDecatur3.8 MGD (million gallons per day)2022
Barling WWTPBarling3.75 MGD (million gallons per day)2022
Northwest Arkansas WWTPBentonville3.6 MGD (million gallons per day)2022
Camden WWTPCamden3.5 MGD (million gallons per day)2022
Stuttgart WWTPStuttgart3.5 MGD (million gallons per day)2022
Osceola WWTPOsceola3.25 MGD (million gallons per day)2022
Malvern WWTPMalvern3.05 MGD (million gallons per day)2022
Bryant WWTPBryant3 MGD (million gallons per day)2022
Arkadelphia WWTPArkadelphia3 MGD (million gallons per day)2022
Wynne WWTPWynne2.76 MGD (million gallons per day)2022
Harrison WWTPHarrison2.6 MGD (million gallons per day)2022
Magnolia WWTPMagnolia2.5 MGD (million gallons per day)2022
Berryville WWTPBerryville2.4 MGD (million gallons per day)2022
Nashville WWTPNashville2.3 MGD (million gallons per day)2022
Beebe WWTPBeebe2.16 MGD (million gallons per day)2022
Forrest City WWTPForrest City2.12 MGD (million gallons per day)2022
Warren WWTPWarren2 MGD (million gallons per day)2022
Van Buren - North WWTPVan Buren2 MGD (million gallons per day)2022
Huntsville WWTPHuntsville2 MGD (million gallons per day)2022
Clarksville WWTPClarksville2 MGD (million gallons per day)2022
Greenwood WWTPGreenwood1.8 MGD (million gallons per day)2022
Trumann WWTPTrumann1.78 MGD (million gallons per day)2022
Heber Springs WWTPHeber Springs1.75 MGD (million gallons per day)2022
Alma WWTPAlma1.75 MGD (million gallons per day)2022
Helena/West Helena - Helena WWTPHelena1.7 MGD (million gallons per day)2022
Marion WWTPMarion1.6 MGD (million gallons per day)2022
Newport WWTPNewport1.6 MGD (million gallons per day)2022
Crossett WWTPCrossett1.5 MGD (million gallons per day)2022
Monticello - West WWTPMonticello1.5 MGD (million gallons per day)2022
Clinton - West WWTPClinton1.5 MGD (million gallons per day)2022
Ward WWTPWard1.45 MGD (million gallons per day)2022
Dumas WWTPDumas1.37 MGD (million gallons per day)2022
Blytheville - South WWTPBlytheville1.27 MGD (million gallons per day)2022
Walnut Ridge WWTPWalnut Ridge1.25 MGD (million gallons per day)2022
Helena/West Helena - W. Helena WWTPWest Helena1.2 MGD (million gallons per day)2022
Hope - Bois D'Arc WWTPHope1.2 MGD (million gallons per day)2022
Dermott WWTPDermott1.2 MGD (million gallons per day)2022
Clinton - East WWTPClinton1.2 MGD (million gallons per day)2022
Sherwood - North WWTPSherwood1.175 MGD (million gallons per day)2022
Ashdown WWTPAshdown1.1 MGD (million gallons per day)2022
Morrilton WWTPMorrilton1 MGD (million gallons per day)2022
Monticello - East WWTPMonticello1 MGD (million gallons per day)2022
Greenbrier WWTPGreenbrier0.98 MGD (million gallons per day)2022
Booneville WWTPBooneville0.98 MGD (million gallons per day)2022
Dardanelle WWTPDardanelle0.98 MGD (million gallons per day)2022
Atkins - North WWTPAtkins0.975 MGD (million gallons per day)2022
Texarkana - North WWTPTexarkana0.95 MGD (million gallons per day)2022
Ozark WWTPOzark0.95 MGD (million gallons per day)2022
Eureka Springs WWTPEureka Springs0.9 MGD (million gallons per day)2022
Pea Ridge WWTPPea Ridge0.9 MGD (million gallons per day)2022
Prairie Grove WWTPPrairie Grove0.9 MGD (million gallons per day)2022
Corning WWTPCorning0.89 MGD (million gallons per day)2022
Lonoke WWTPLonoke0.89 MGD (million gallons per day)2022
Gurdon WWTPGurdon0.86 MGD (million gallons per day)2022
Waldron WWTPWaldron0.85 MGD (million gallons per day)2022
Hot Springs - Southwest WWTPHot Springs National Park0.85 MGD (million gallons per day)2022
Prescott WWTPPrescott0.85 MGD (million gallons per day)2022
Fordyce WWTPFordyce0.84 MGD (million gallons per day)2022
Lake Village WWTPLake Village0.82 MGD (million gallons per day)2022
Blytheville - North WWTPBlytheville0.8 MGD (million gallons per day)2022
Hope - Pate Creek WWTPHope0.8 MGD (million gallons per day)2022
Danville WWTPDanville0.8 MGD (million gallons per day)2022
Yellville WWTPYellville0.75 MGD (million gallons per day)2022
DeWitt WWTPDe Witt0.738 MGD (million gallons per day)2022
Mountain View WWTPMountain View0.73 MGD (million gallons per day)2022
Paris WWTPParis0.718 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.