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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
Edmondson WWTPEdmondson0.063 MGD (million gallons per day)2022
Salesville WWTPNorfork0.06 MGD (million gallons per day)2022
Mitchellville WWTPDumas0.06 MGD (million gallons per day)2022
Widener WWTPWidener0.06 MGD (million gallons per day)2022
Kingsland WWTPKingsland0.06 MGD (million gallons per day)2022
Dyess WWTPDyess0.06 MGD (million gallons per day)2022
Burdette WWTPBurdette0.06 MGD (million gallons per day)2022
Emmet WWTPEmmet0.06 MGD (million gallons per day)2022
Greenway WWTPGreenway0.059 MGD (million gallons per day)2022
Fountain Hill WWTPFountain Hill0.055 MGD (million gallons per day)2022
Poyen WWTPPoyen0.055 MGD (million gallons per day)2022
Colt WWTPColt0.055 MGD (million gallons per day)2022
Almyra WWTPAlmyra0.05 MGD (million gallons per day)2022
Parkdale WWTPParkdale0.05 MGD (million gallons per day)2022
Norfork WWTPNorfork0.05 MGD (million gallons per day)2022
McDougal WWTPMc Dougal0.05 MGD (million gallons per day)2022
Emerson WWTPEmerson0.05 MGD (million gallons per day)2022
Fulton WWTPFulton0.05 MGD (million gallons per day)2022
Thornton WWTPThornton0.05 MGD (million gallons per day)2022
Rondo WWTPLa Grange0.05 MGD (million gallons per day)2022
Keo WWTPKeo0.05 MGD (million gallons per day)2022
Portland WWTPPortland0.05 MGD (million gallons per day)2022
Arkansas City WWTPArkansas City0.049 MGD (million gallons per day)2022
Lafe WWTPLafe0.049 MGD (million gallons per day)2022
Felsenthal WWTPHuttig0.049 MGD (million gallons per day)2022
Mountain Top SID No. 66Hot Springs Village0.048 MGD (million gallons per day)2022
Cash WWTPCash0.048 MGD (million gallons per day)2022
Lexa WWTPLexa0.048 MGD (million gallons per day)2022
Tri - City WWTPO Kean0.048 MGD (million gallons per day)2022
Griffithville WWTPGriffithville0.047 MGD (million gallons per day)2022
Saint Charles WWTPSaint Charles0.046 MGD (million gallons per day)2022
Rockport Wastewater SystemMalvern0.046 MGD (million gallons per day)2022
Knobel WWTPKnobel0.045 MGD (million gallons per day)2022
Perry WWTPPerry0.045 MGD (million gallons per day)2022
Ulm WWTPUlm0.045 MGD (million gallons per day)2022
Jennette WWTPCrawfordsville0.043 MGD (million gallons per day)2022
Success WWTPSuccess0.043 MGD (million gallons per day)2022
Saint Francis WWTPSaint Francis0.04 MGD (million gallons per day)2022
Chidester WWTPChidester0.04 MGD (million gallons per day)2022
Banks WWTPBanks0.036 MGD (million gallons per day)2022
Ravenden Springs WWTPRavenden Springs0.036 MGD (million gallons per day)2022
Booneville Human Development Center WWTPBooneville0.035 MGD (million gallons per day)2022
Okolona WWTPOkolona0.035 MGD (million gallons per day)2022
Fort Smith Blackstone Ranch POA WWTPFort Smith0.03 MGD (million gallons per day)2022
Lake Catherine State Park WWTPMalvern0.03 MGD (million gallons per day)2022
Pollard WWTPPollard0.03 MGD (million gallons per day)2022
Alicia WWTPAlicia0.03 MGD (million gallons per day)2022
Birdsong WWTPGilmore0.03 MGD (million gallons per day)2022
Russell WWTPRussell0.03 MGD (million gallons per day)2022
Egypt WWTPEgypt0.025 MGD (million gallons per day)2022
Sedgwick WWTPSedgwick0.025 MGD (million gallons per day)2022
Beedeville WWTPBeedeville0.021 MGD (million gallons per day)2022
City of Rose BudRose Bud0.02 MGD (million gallons per day)2022
Westwood Village Sewer PlantHot Springs National Park0.02 MGD (million gallons per day)2022
Letona WWTPLetona0.018 MGD (million gallons per day)2022
Amagon WWTPAmagon0.016 MGD (million gallons per day)2022
Nimmons WWTPRector0.015 MGD (million gallons per day)2022
Roe WWTPRoe0.015 MGD (million gallons per day)2022
Tinsman WWTPHampton0.014 MGD (million gallons per day)2022
Marble Falls WWTPMarble Falls0.01 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.